CN119702880B - Gas cylinder spinning and closing device and closing method - Google Patents
Gas cylinder spinning and closing device and closing method Download PDFInfo
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- CN119702880B CN119702880B CN202510213196.0A CN202510213196A CN119702880B CN 119702880 B CN119702880 B CN 119702880B CN 202510213196 A CN202510213196 A CN 202510213196A CN 119702880 B CN119702880 B CN 119702880B
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Abstract
本发明涉及旋压成型技术领域，具体涉及一种气瓶旋压收口装置及收口方法，气瓶旋压收口装置包括机架以及设置在机架上的夹持部件、旋压部件和辅助部件，所述辅助部件包括一端用于伸入气瓶内的芯轴，所述芯轴用于伸入气瓶内的一端设有台阶面，所述台阶面用于与气瓶的瓶颈内壁支撑配合，所述芯轴用于伸入气瓶内的一端连接有能够沿芯轴的径向扩张和收缩的顶撑结构，所述顶撑结构在芯轴的一端伸入气瓶内后扩张，并与所述台阶面围成定型环槽，所述定型环槽用于与气瓶的瓶口、瓶颈以及瓶肩定位配合，所述顶撑结构在气瓶收口完成后收缩，以使顶撑结构随芯轴一起退出气瓶。本发明解决现有技术中无法对瓶肩位置进行支撑而影响气瓶收口质量的技术问题。
The present invention relates to the technical field of spin forming, and specifically to a gas cylinder spin forming and closing device and a closing method. The gas cylinder spin forming and closing device comprises a frame and a clamping component, a spinning component and an auxiliary component arranged on the frame. The auxiliary component comprises a mandrel at one end for inserting into the gas cylinder. The mandrel at one end for inserting into the gas cylinder is provided with a step surface, and the step surface is used to support and cooperate with the inner wall of the bottleneck of the gas cylinder. The mandrel at one end for inserting into the gas cylinder is connected with a top support structure that can expand and contract along the radial direction of the mandrel. The top support structure expands after one end of the mandrel is inserted into the gas cylinder, and forms a shaping ring groove with the step surface. The shaping ring groove is used to position and cooperate with the bottle mouth, bottleneck and bottle shoulder of the gas cylinder. The top support structure shrinks after the gas cylinder is closed, so that the top support structure exits the gas cylinder together with the mandrel. The present invention solves the technical problem in the prior art that the bottle shoulder position cannot be supported, thus affecting the closing quality of the gas cylinder.
Description
Technical Field
The invention relates to the technical field of spinning forming, in particular to a gas cylinder spinning closing-in device and a closing-in method.
Background
At present, the closing-in of the gas cylinder is finished through a spinning forming process, and the concrete steps are that one end of a metal pipe is heated to a deformable state, and then the spinning part is utilized to spin-form the heated end of the metal pipe, so that one end of the metal pipe forms a bottleneck structure with the diameter smaller than that of the cylinder body.
In the prior art, when the gas cylinder is closed, in order to ensure that the bottleneck position is stable in structure during closing, and the final bottleneck and the bottleneck are regular in shape, auxiliary support is usually needed in the bottleneck of the gas cylinder. The high-precision closing device comprises a clamping part for clamping the gas cylinder, spinning parts for spinning the end part of the gas cylinder from the two radial sides of the gas cylinder, and auxiliary parts for extending into the gas cylinder from the bottle mouth of the gas cylinder to assist in supporting the inner wall of the bottle mouth. In another embodiment, according to the method for closing the aluminum alloy gas cylinder with the increased wall thickness of the nozzle disclosed in the Chinese patent publication No. CN105170829B, a mandrel with a step at one end is arranged and is positioned in a tailstock trolley, the tailstock trolley drives the mandrel to extend into the gas cylinder when the gas cylinder is closed, then a wheel is selected to move according to a set spinning track, the mandrel is supported and shaped from the inside of the gas cylinder, and closing of the gas cylinder is completed under the supporting and shaping actions of the step surface at the end of the mandrel.
According to the necking device and the necking method, the positions of the bottle neck and the bottle mouth are supported and kept during necking, so that the shape rules of the positions of the bottle neck and the bottle mouth can be kept, but when the bottle mouth is spun, the positions of the bottle shoulder (the transition positions of the bottle body and the bottle neck) are not supported and shaped, the shape of the position is irregular easily caused, the thickness is uneven, and the necking quality of the whole gas bottle is further affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a gas cylinder spinning closing-in device and a closing-in method, which are used for solving the technical problem that the closing-in quality of a gas cylinder is affected due to the fact that the position of a bottle shoulder cannot be supported in the prior art.
The invention relates to a gas cylinder spinning closing-in device and a closing-in method, which adopt the following technical scheme:
The utility model provides a gas cylinder spinning binding off device and binding off method, includes frame and the clamping part, spinning part and the auxiliary part of setting in the frame, the clamping part is used for the body of centre gripping gas cylinder, spinning part is used for from the outside spinning gas cylinder one end of gas cylinder and makes the one end of gas cylinder form the binding off, the auxiliary part is used for supporting the cooperation with the inner wall of gas cylinder when spinning part is spun to the gas cylinder, the auxiliary part includes the dabber that one end is used for stretching into in the gas cylinder, the dabber is used for stretching into the one end in the gas cylinder and is equipped with the step face, the step face is used for supporting the cooperation with the bottleneck inner wall of gas cylinder, the dabber is used for stretching into the one end in the gas cylinder and is connected with the jack structure that can radially expand and shrink along the dabber, jack structure stretches into in the gas cylinder after the one end of dabber and with the step face encloses into the shaping annular, shaping annular is used for with bottleneck, bottleneck and the shoulder location cooperation of gas cylinder, jack structure shrink after the gas cylinder binding off is accomplished to make jack structure withdraw from the gas cylinder together.
Further, the jacking structure is an umbrella-shaped supporting structure and comprises a central cylinder coaxially inserted at one end of the mandrel, a telescopic driving mechanism and a sliding block capable of moving along the axial direction of the central cylinder in a reciprocating mode are arranged in the central cylinder, the telescopic driving mechanism is connected with the sliding block and used for driving the sliding block to move in a reciprocating mode, a plurality of supporting rods are hinged to the outer wall of the central cylinder and are arranged at intervals along the circumferential direction of the central cylinder, a connecting rod is connected between the supporting rods and the sliding block, one end of each connecting rod is hinged to the supporting rod, the other end of each connecting rod is hinged to the sliding block, when the telescopic driving mechanism drives the sliding block to move towards the direction close to the mandrel, the sliding block drives one end of each supporting rod to swing towards the direction close to the central cylinder, so that the jacking structure expands into an umbrella shape, and when the sliding block moves towards the direction away from the mandrel, the sliding block drives one end of each supporting rod to swing towards the direction close to the central cylinder through the connecting rod.
Further, the bracing piece is the arc pole, the concave surface of arc pole is towards a central section of thick bamboo, the convex surface of arc pole is used for the bottle shoulder inner wall location laminating with the gas cylinder.
Further, a mounting hole is formed in the mandrel, the central cylinder is inserted into the mounting hole, a radial through hole penetrating through the inside and the outside of the mounting hole is formed in the inner wall of the mounting hole, a connecting hole is correspondingly formed in the inner wall of the central cylinder, and fasteners are screwed in the radial through hole and the connecting hole, so that the central cylinder is fixed in the mounting hole of the mandrel.
Further, the side wall of the central cylinder is provided with a plurality of sliding grooves extending along the axial direction of the central cylinder, the sliding grooves are arranged at intervals along the circumferential direction of the central cylinder, the periphery of the sliding block is provided with a plurality of first hinging blocks at intervals, the first hinging blocks are arranged in one-to-one correspondence with the supporting rods, the first hinging blocks extend into the sliding grooves in one-to-one correspondence, one end of each connecting rod is hinged with the sliding block through the first hinging blocks, a second hinging block is fixed on the concave surface of the supporting rod, and the other end of each connecting rod is hinged with the supporting rod through the second hinging block.
Further, a hinged ear seat is fixed on the outer wall of the central cylinder, and one end of the supporting rod is hinged with the outer wall of the central cylinder through the hinged ear seat.
Further, the telescopic driving mechanism is a telescopic cylinder, the telescopic cylinder is provided with a cylinder body and a telescopic rod, the cylinder body is fixed in the central cylinder, and one end of the telescopic rod is connected with the sliding block.
Further, the auxiliary component further comprises a tailstock, a sliding rail is arranged on the frame, the extending direction of the sliding rail is parallel to the axis of the mandrel, the tailstock is installed on the sliding rail in a guiding mode, and the mandrel is axially and movably arranged on the tailstock along the mandrel.
Further, the tailstock includes the base and fixes a fixed section of thick bamboo on the base, the coaxial cartridge of dabber is in a fixed section of thick bamboo, be equipped with the internal thread hole in the dabber, coaxial wearing is equipped with the threaded rod in the fixed section of thick bamboo, the one end of threaded rod is adorned soon in the internal thread hole, the other end of threaded rod is connected with hand wheel, through the rotation hand wheel drives the threaded rod is rotatory, threaded rod rotary drive the dabber removes along self axis in a fixed section of thick bamboo.
A closing method for spinning and closing up the gas cylinder includes such steps as clamping the body of gas cylinder on a clamping unit to make one end of gas cylinder in overhanging state, heating the overhanging end of gas cylinder to drive tail seat to move toward gas cylinder with mandrel, expanding the supporting structure, forming a shaping ring slot with the step surface of mandrel, spinning the outer wall of gas cylinder by spinning unit, supporting and locating the inner wall of gas cylinder by shaping ring slot to make the spun part of gas cylinder form bottleneck and shoulder in shaping ring slot.
The gas cylinder spinning necking device and the gas cylinder spinning necking method have the beneficial effects that the expanding and contracting propping structure is arranged at the end part of the mandrel of the auxiliary component, so that the propping structure forms the shaping groove with the step surface at the end part of the mandrel after expanding, the bottleneck and the shoulder of the gas cylinder are spun and formed in the shaping groove, the shaping groove supports and positions the inner wall of the bottleneck and the shoulder of the gas cylinder from the inner side of the gas cylinder, the irregular deformation of the inner part of the gas cylinder is reduced, and the sizes of the bottleneck and the shoulder of the gas cylinder are better controlled. And the shaping groove formed by the propping structure and the step surface of the mandrel limits the bottle neck and the bottle shoulder of the gas cylinder in the shaping groove, so that the stretching amount of the gas cylinder in the axial direction of the gas cylinder during spinning is reduced, and the thickness of the gas cylinder is more uniform.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, it being understood that these drawings are not necessarily drawn to scale.
FIG. 1 is a schematic perspective view of an embodiment of a gas cylinder spinning necking-in apparatus of the present invention;
FIG. 2 is a front view of an embodiment of a cylinder spinning necking-in apparatus of the present invention;
FIG. 3 is a front view of an auxiliary component of one embodiment of a cylinder spinning necking-in apparatus of the present invention;
FIG. 4 is a right side view of FIG. 3;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is an enlarged schematic view of portion B of FIG. 5;
FIG. 7 is another state diagram of FIG. 5;
FIG. 8 is an enlarged schematic view of portion D of FIG. 7;
FIG. 9 is a schematic perspective view (open state) of a top support structure in an embodiment of a gas cylinder spinning and crimping apparatus according to the present invention;
FIG. 10 is a front view of a top support structure in one embodiment of a gas cylinder spinning necking-in apparatus of the present invention;
FIG. 11 is a cross-sectional view taken along line C-C of FIG. 10;
100 parts of a machine frame, 101 parts of a sliding rail, 110 parts of a spinning part, 111 parts of a moving seat, 112 parts of a spinning wheel, 120 parts of a clamping part, 121 parts of a gas cylinder, 200 parts of an auxiliary part, 201 parts of a hand-operated wheel, 202 parts of a locking mechanism, 203 parts of a mandrel, 204 parts of a tail seat, 205 parts of a threaded rod, 210 parts of a top support structure, 211 parts of a center cylinder, 2111 parts of a sliding groove, 2112 parts of a hinged lug seat, 212 parts of a telescopic cylinder, 213 parts of a fixed screw, 214 parts of a pin, 215 parts of a supporting rod, 2151 parts of a second hinged block, 216 parts of a connecting rod, 217 parts of a sliding block, 2171 parts of a first hinged block, 218 parts of a mounting hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 11, an embodiment of a gas cylinder spinning and necking device and a necking method of the present invention includes a frame 100, and a clamping member 120, a spinning member 110 and an auxiliary member 200 disposed on the frame 100, where the clamping member 120 is used for clamping a body of a gas cylinder 121, and the clamping member 120 is connected with a rotation driving mechanism for driving the clamping member 120 and the gas cylinder 121 to rotate. The spinning member 110 is used to spin one end of the gas cylinder 121 from the outside of the gas cylinder 121, so that one end of the gas cylinder 121 forms a closed-up structure. The auxiliary component 200 is used for supporting and matching with the inner wall of the gas cylinder 121 when the spinning component 110 spins the gas cylinder 121. In this embodiment, the rack 100 is provided with a sliding rail 101, the spinning component 110 and the auxiliary component 200 are respectively mounted on the sliding rail 101 in a guiding manner, and the spinning component 110 and the auxiliary component 200 can respectively move along the sliding rail 101 in a guiding manner so as to approach and separate from the clamping component 120. The spinning component 110 includes two moving bases 111 capable of moving relatively and reversely, each moving base 111 is provided with a spinning wheel 112 in a rotating manner, and the two spinning wheels 112 spin the gas cylinder 121 from two radial sides of the gas cylinder 121. In the present invention, the structures of the frame 100, the clamping member 120 and the spinning member 110 are all known in the art, and will not be described in detail herein.
In the present invention, the auxiliary component 200 includes a tailstock 204 and a mandrel 203 disposed on the tailstock 204, the tailstock 204 is mounted on the sliding rail 101 in a guiding manner, and the tailstock 204 moves along the sliding rail 101 in a guiding manner to drive the mandrel 203 to move, so that one end of the mandrel 203 can extend into the gas cylinder 121 or withdraw from the gas cylinder 121. The end of the mandrel 203, which is used to extend into the gas cylinder 121, is provided with a step surface, and the step surface is used to support and cooperate with the inner wall of the bottleneck of the gas cylinder 121. The mandrel 203 is used for extending into the gas cylinder 121, one end of the mandrel 203 is connected with a propping structure 210 which can expand and contract along the radial direction of the mandrel 203, the propping structure 210 expands after one end of the mandrel 203 extends into the gas cylinder 121 and forms a shaping ring groove with the step surface, the shaping ring groove is used for being matched with the bottle mouth, the bottle neck and the bottle shoulder of the gas cylinder 121 in a positioning manner, and the propping structure 210 contracts after the closing of the gas cylinder 121 is completed, so that the propping structure 210 withdraws from the gas cylinder 121 along with the mandrel 203.
In this embodiment, the jacking structure 210 is an umbrella-shaped supporting structure, and includes a central cylinder 211 coaxially inserted into one end of the mandrel 203, specifically, a mounting hole 218 is provided in the mandrel 203, the central cylinder 211 is inserted into the mounting hole 218, a radial through hole penetrating through the inside and the outside of the mounting hole 218 is formed in the inner wall of the mounting hole 218, a connecting hole is correspondingly formed in the inner wall of the central cylinder 211, and fasteners are screwed in the radial through hole and the connecting hole, so that the central cylinder 211 is fixed in the mounting hole 218 of the mandrel 203, and the fasteners include fixing screws 213 and pins 214. The inside of the central cylinder 211 is provided with a telescopic driving mechanism and a sliding block 217 capable of reciprocating along the axial direction of the central cylinder 211, and the telescopic driving mechanism is connected with the sliding block 217 and is used for driving the sliding block 217 to reciprocate. The outer wall of the central cylinder 211 is hinged with a plurality of support rods 215, and the support rods 215 are arranged at intervals along the circumferential direction of the central cylinder 211. A connecting rod 216 is connected between the supporting rod 215 and the sliding block 217, one end of the connecting rod 216 is hinged with the supporting rod 215, and the other end is hinged with the sliding block 217.
In this embodiment, the support rod 215 is an arc rod, a concave surface of the arc rod faces the central cylinder 211, and a convex surface of the arc rod is used for positioning and fitting with an inner wall of a shoulder of the gas cylinder 121. The side wall of the central cylinder 211 is provided with a plurality of sliding grooves 2111 extending along the axial direction of the central cylinder 211, and the sliding grooves 2111 are arranged at intervals along the circumferential direction of the central cylinder 211. The periphery interval of sliding block 217 is provided with a plurality of first articulated blocks 2171, first articulated blocks 2171 and bracing piece 215 one-to-one set up, and each first articulated block 2171 stretches into each spout 2111 one-to-one, the one end of connecting rod 216 pass through first articulated block 2171 with the sliding block 217 articulates, be fixed with second articulated block 2151 on the concave surface of bracing piece 215, the other end of connecting rod 216 pass through second articulated block 2151 with bracing piece 215 articulates. An articulated ear seat 2112 is fixed on the outer wall of the central cylinder 211, and one end of the supporting rod 215 is articulated with the outer wall of the central cylinder 211 through the articulated ear seat 2112. The telescopic driving mechanism is a telescopic cylinder 212, the telescopic cylinder 212 is provided with a cylinder body and a telescopic rod, the cylinder body is fixed in the central cylinder 211, and one end of the telescopic rod is connected with the sliding block 217.
When the telescopic driving mechanism drives the sliding block 217 to move in a direction approaching the mandrel 203, the sliding block 217 drives one end of the supporting rod 215 to swing in a direction away from the central cylinder 211 through the connecting rod 216, so that the top supporting structure 210 expands into an umbrella shape, at this time, as shown in fig. 8, the step surfaces of the end parts of the supporting rods 215 and the mandrel 203 surround into a shaping ring groove surrounding the mandrel 203 in a circle, after the spinning component 110 spins the outer wall of the gas cylinder 121 according to a set track, a bottleneck and a bottle shoulder can be formed in the shaping ring groove, wherein the step on the mandrel 203 supports and positions the bottleneck, that is, the shaping ring groove supports and positions the formed bottleneck and bottle shoulder, so that the wall thickness of the bottleneck and the bottle shoulder can be ensured to be as uniform as possible, and the shape is regular. When the sliding block 217 moves in a direction away from the mandrel 203, the sliding block 217 drives one end of the supporting rod 215 to swing in a direction close to the central cylinder 211 through the connecting rod 216, so that the supporting structure 210 is contracted, and in this state, as shown in fig. 6, the outer diameter of the supporting structure 210 is smaller than the inner diameter of the bottle neck, so that after the closing of the gas bottle 121 is completed, the mandrel 203 can withdraw from the gas bottle 121 with the supporting structure 210.
In this embodiment, dabber 203 is along self axial activity setting on tailstock 204, tailstock 204 includes the base and fixes a fixed section of thick bamboo on the base, the coaxial cartridge of dabber 203 is in a fixed section of thick bamboo, be equipped with the internal thread hole in the dabber 203, coaxial threaded rod 205 of wearing to be equipped with in the fixed section of thick bamboo, threaded rod 205's one end is adorned soon in the internal thread hole, threaded rod 205's the other end is connected with hand wheel 201, through the rotation hand wheel 201 drives threaded rod 205 is rotatory, threaded rod 205 rotary drive dabber 203 is along self axis removal in the fixed section of thick bamboo. In this embodiment, the locking mechanism 202 is disposed on the side wall of the fixed cylinder, the locking mechanism 202 includes a locking lever that is disposed on the side wall of the fixed cylinder in a swinging manner, when the locking lever is pulled downward, one end of the locking lever extending into the fixed cylinder is locked and matched with the outer wall of the mandrel 203, so that the mandrel 203 is locked at a set position, when the locking lever is pulled upward, the locking lever releases the locking of the mandrel 203, after the tailstock 204 drives the mandrel 203 to move towards the clamping member 120 to the set position, the mandrel 203 is driven to move relative to the fixed cylinder by rotating the hand wheel 201, so that the mandrel 203 extends and stretches into the gas cylinder 121.
The gas cylinder spinning closing-in method comprises the following steps that firstly, a cylinder body of a gas cylinder 121 is clamped on a clamping component 120, one end of the gas cylinder 121 is in an overhanging state, then, the overhanging end of the gas cylinder 121 is heated, a tailstock 204 is driven to move towards the gas cylinder 121 to a set position along a mandrel 203, and meanwhile, a spinning component 110 moves towards the gas cylinder 121 along a sliding rail 101. After the tailstock 204 moves to the set position, the rotating hand wheel 201 drives the mandrel 203 to move towards the inside of the gas cylinder 121, so that one end of the mandrel 203 and the propping structure 210 extend into the gas cylinder 121. In the initial state, the supporting structure 210 is in a contracted state, as shown in fig. 6, and then the telescopic cylinder 212 is controlled to contract, so that the telescopic rod of the telescopic cylinder 212 drives the sliding block 217 to move towards the direction close to the mandrel 203, the sliding block 217 supports each supporting rod 215 through each connecting rod 216, so that each supporting rod 215 is supported to be umbrella-shaped, and the supporting structure 210 forms a shaping ring groove with the step surface at the end part of the mandrel 203 after being expanded. The spinning member 110 then begins spinning the outer wall of the cylinder 121 in a set trajectory, the shaped ring groove supporting and positioning the inner wall of the cylinder 121 such that the spun portion of the cylinder 121 forms a bottleneck and shoulder within the shaped ring groove, as shown in fig. 8. After the closing of the gas cylinder 121 is completed, the expansion rod of the expansion cylinder 212 is controlled to extend, the expansion rod drives the sliding blocks 217 to move towards the direction away from the mandrel 203, the sliding blocks 217 drive the supporting rods 215 to retract through the connecting rods 216, the whole propping structure 210 is in a contracted state, then the hand wheel 201 is rotated, and the mandrel 203 is driven to withdraw from the gas cylinder 121 with the propping structure 210.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
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| CN202510213196.0A CN119702880B (en) | 2025-02-26 | 2025-02-26 | Gas cylinder spinning and closing device and closing method |
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| CN202510213196.0A CN119702880B (en) | 2025-02-26 | 2025-02-26 | Gas cylinder spinning and closing device and closing method |
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| CN119702880B true CN119702880B (en) | 2025-07-01 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355270A (en) * | 2019-08-09 | 2019-10-22 | 浙江威能消防器材股份有限公司 | A seamless gas cylinder closing machine |
| CN114535449A (en) * | 2022-02-20 | 2022-05-27 | 广东青禾能源技术有限公司 | End socket forming die for manufacturing inner container of high-pressure hydrogen storage bottle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209830059U (en) * | 2019-03-26 | 2019-12-24 | 浙江超力防火设备有限公司 | Steel bottle head forming device |
| CN112120778B (en) * | 2020-09-17 | 2022-03-25 | 山东冠龙医疗用品有限公司 | Centrum struts filling device and propeller |
| CN119304325A (en) * | 2024-10-14 | 2025-01-14 | 中国核工业二三建设有限公司 | Inflatable protective device for welding |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355270A (en) * | 2019-08-09 | 2019-10-22 | 浙江威能消防器材股份有限公司 | A seamless gas cylinder closing machine |
| CN114535449A (en) * | 2022-02-20 | 2022-05-27 | 广东青禾能源技术有限公司 | End socket forming die for manufacturing inner container of high-pressure hydrogen storage bottle |
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