WO2006119703A2

WO2006119703A2 - Laser coordinate drilling machine

Info

Publication number: WO2006119703A2
Application number: PCT/CN2006/000932
Authority: WO
Inventors: He Zhao; Bo Rui
Original assignee: He Zhao; Bo Rui
Priority date: 2005-05-12
Filing date: 2006-05-10
Publication date: 2006-11-16
Also published as: WO2006119703A3

Abstract

A laser coordinate drilling machine comprises a base, a stand, a headstock and two planar laser beam generators, etc. The laser beam generators are mounted on the stand or the headstock directly or through one or two fixers. The midline of one generator is located on the fore-and-aft central plane of the spindle and the midline of the other generator is located on the right-and-left central plane of the spindle. The two generators are mounted downwards or aslant with respect to the spindle. The generated planar laser beams are superposed with the fore-and-aft and right-and-left central planes. Said laser beam generator comprises a laser generator, which can generate straight beam, and a lens for broadening the beam that is mounted in front of the laser generator. Due to the lenses, the two laser beams can form integrated X-Y rectangular coordinates, which includes X-axis, Y-axis and their scales and characters on the table. The drilling machine can position rapidly and exactly the place of the drilling hole and can adjust the position of the work quantificationally on the basis of the rectangular coordinates. It is so convenient and rapid that it can be applied widely on the drilling machine, the drilling and milling machine and other machines for boring hole.

Description

Laser coordinate table drilling

The present invention is in the field of bench drill, drill press and hole processing machinery, and more particularly relates to the design of laser coordinate bench drills. Background technique

Conventional bench drills do not have a Cartesian coordinate system that facilitates workpiece positioning and machining. When drilling, it is usually carried out in four steps (steps), such as scribing, hole drilling, trial drilling, and drilling. The trial drilling process often needs to be performed multiple times, which takes time and labor. Moreover, when moving the workpiece on the workbench, it can only be done by experience, and no coordinates can be referred to. This is true even if a row or set of holes is to be machined on the workpiece. In addition to mass production, you can use the mold positioning. In the small batch production, you need to follow the above four steps one by one. Not only trouble, but also low productivity. '

Japanese Patent No. 2000-343309 entitled "Processing Position Representation Device", Patent No. ZL200420048104.1 entitled "Laser Alignment Device for Drilling Machine" and Patent No. ZL01268601.8 is entitled " China's laser positioning system for hole processing machinery discloses a bench drill that determines the hole position by the intersection of two plane beams emitted by two laser emitters. The advantage is that the positioning is convenient and accurate. However, the projection of the two plane beams on the table is a two-intersection line with an arbitrary angle. Except for the intersection point, the projection line itself does not have any reference or positioning function, and it cannot form a Cartesian coordinate system projection on the workbench.

In addition, the two laser emitters of the Japanese Patent Laid-Open No. 2000-343309 are attached to the "body" by "hinge", and the "body" is limited to be mounted on the column. This type of installation is very unstable. ZL200420048104.1 patents both laser transmitters are mounted on the "bundle", while the "bundle" is limited to the spindle sleeve mounted on the headstock. This installation adjustment process is quite cumbersome. Their common shortcomings are the complex structure, the inability to adapt to the needs of different installation locations in more cases, and the reduced vertical operating space of the bench drill. Summary of the invention

It is an object of the present invention to provide a laser coordinate bench drill. It overcomes the above drawbacks, not only can clearly indicate the projection of the centerline of the bench drill spindle on the workbench, but also can be projected to include the X-axis, The clear, complete and beautiful Cartesian coordinate system of the Y-axis and its scales and characters; not only can the hole position be determined quickly and accurately, but also the position of the workpiece on the table can be quantitatively adjusted according to the Cartesian coordinate system, which is very convenient and fast. The planar laser beam emitter has a simple fixing structure and can be installed at different positions of the vertical or headstock according to different specific conditions.

In order to achieve the above object, the present invention comprises a base, a stand, a headstock, a motor, two planar laser beam emitters, and an electrical control system electrically connected to the planar laser beam emitter, the headstock including the casing, the main shaft, and the transmission mechanism The sleeve and the feed mechanism are set on the outside of the main shaft with the bearing. Two planar laser beam emitters are mounted on the vertical or headstock. The center line of one of the planar laser beam emitters is located in the front and rear center planes of the main shaft, and is installed obliquely downward or toward the center line of the main shaft; the center line of the other planar laser beam emitter is located in the left and right center planes of the main shaft, downward or toward The spindle center line is installed obliquely. The planar laser beams emitted by the two planar laser beam emitters coincide with the front and rear center planes and the left and right center planes of the main shaft, respectively.

The planar laser beams emitted by the above two planar laser beam emitters respectively coincide with the front and rear and left and right center planes of the main shaft, and therefore must be orthogonal to each other, and the intersection line thereof must coincide with the center line of the main shaft, that is, the drill bit. Thus, their projection on a table perpendicular to the centerline of the spindle constitutes a positive Χ-Υ rectangular coordinate system: the projection of the intersection line forms the origin of the Cartesian coordinate system, ie the center point ο, coincides with the front and rear center planes of the main axis. The plane laser beam forms the Υ axis of the Cartesian coordinate system, and the plane laser beam that coincides with the left and right center planes of the main axis forms the X axis of the Cartesian coordinate system. Its center point ο accurately determines the hole position of the hole to be machined. When drilling, it is only necessary to align the hole position of the workpiece with the intersection of the two plane laser beams.

If the bench drill is a simple bench drill without a workbench, the projection of the flat laser beam emitted by the two planar laser beam emitters on the base perpendicular to the centerline of the spindle constitutes a Χ-Υ rectangular coordinate system.

The planar laser beam emitter includes at least one laser emitter that emits a collimated beam and a beam expander lens mounted in front of the emitter end of the laser emitter. The beam expander expands the collimated beam into a fan-shaped planar beam with a character beam at both ends. The projection of the fan-shaped planar beam in a plane perpendicular to the centerline of the collimated beam or on the table is X or Υ characters at both ends. A thin line of lines.

The thin inline line with X characters at both ends forms the X-axis of the Cartesian coordinate system, and the thin inline lines with Υ characters at both ends form the Υ axis of the Cartesian coordinate system.

The planar laser beam emitter may also include at least one laser emitter that emits a collimated beam and a beam expander lens mounted in front of the emitter end of the laser emitter. Fan shape expanded by the beam expander lens The planar beam also has a graduated beam, that is, the projection of the fan-shaped planar beam in a plane perpendicular to the centerline of the collimated beam is a thin line of tick marks. That is to say, the planar laser beam emitted by the planar laser beam emitter of this structure is formed on the table with X and Y axes perpendicular to each other, and X and Y characters at both ends of the X and Y axes. And the X-axis and Y-axis all have a full rectangular coordinate system projection with scales, beautiful and practical.

This complete Cartesian coordinate system with scale can not only quickly and accurately determine the hole position, but also quantitatively adjust the position of the workpiece on the workbench according to the Cartesian coordinate system, which is very convenient and fast.

The production technology that can expand the collimated beam into a beam expander projected into various complex patterns has matured and can be established in some enterprises in Taiwan, Shenzhen, Hangzhou and other places. Such a beam expander lens can be etched by a mask production method as described in "Laser Advanced Manufacturing Technology" (December 2002, 1st Edition), page 108. Figure 6 below shows various projection patterns already available for the sale of laser beam emitters.

The ends of the two planar laser beam emitters may have vertical or oblique holes, with corresponding holes in the vertical or headstock with screw holes, and the flat laser beam emitters are screwed to the vertical or headstock.

This is one of the simplest ways to fix a planar laser beam emitter. It omits the usual mounts. When the tail of the planar laser beam emitter has a vertical hole, the fixed planar laser beam emitter is in a vertical position with its axis parallel to the centerline of the main axis. When the tail of the planar laser beam emitter has an inclined hole, the fixed planar laser beam emitter is tilted and tilted toward the center line of the main shaft.

Of course, the two planar laser beam emitters can also be mounted on one or two mounts and attached to the stand or headstock. The specific structure of the mount can be varied. When mounted by a mount, both planar laser beam emitters can be mounted on the mount. The fixing seat can be ring-shaped or frame-shaped, and can be fitted on the spindle sleeve or directly under the headstock housing (circular spindle). Depending on the installation location and the size of the installation space, as well as the need for adjustment, a planar laser beam emitter can be mounted directly, and another planar laser beam emitter can be mounted in place via a mount.

The fixed position of the two planar laser beam emitters can be mounted at different positions on the vertical or headstock depending on the specific situation. For example: When the headstock of the bench drill does not need to move up and down or the range of up and down movement is small, two plane laser beam emitters can be installed on the side of the headstock and the other on the column; when the spindle head of the bench drill needs to be up and down When moving to adjust the opening of the bench drill, two planar laser beam emitters can be mounted on the side of the headstock and the other on the spindle through the mount. The underside of the box body; it is also possible to mount both on one or two mounts that are fixed under the headstock housing or on the spindle sleeve.

In addition to the above-mentioned planar laser beam emitter in the middle of the fixed seat, one or two planar laser beam emitters can be respectively mounted on both sides. The planar laser beam emitters on both sides are mounted on adjusters that adjust their left and right positions and they emit a planar laser beam that is parallel to a planar laser beam or a fan-shaped planar laser beam from a corresponding intermediate planar laser beam emitter.

The projection of the plane laser beam from the 1~2 plane laser beam emitters on the two sides on the table perpendicular to the spindle centerline constitutes several auxiliary parallel lines in the X- and Y-directions of the X-Y Cartesian coordinate system. If all of the planar laser beam emitters are adjusted to be equidistant, the projections form an auxiliary grid line of the right-angled coordinate system, which is highly versatile. Can be used to adjust the position and hole position of the workpiece on the table.

The two fixing seats are provided with a middle short groove and two left and right long grooves, and an intermediate flat laser beam emitter is fixed in the middle short groove. The adjuster is composed of a screw and a circlip for the shaft mounted at the inner end thereof. 1~2 screws are installed in each of the left and right long grooves, and the outer end of the screw protrudes from the outer side of the support, and has a knob thereon, and the inner end of the screw protrudes in the middle short groove, and the shaft is elastically mounted thereon Retaining ring. The first planar laser beam emitter on both sides has a screw hole mounted on the first screw and a corresponding optical hole passing through the second screw, and the second planar laser beam emitter on both sides is provided thereon A screw hole mounted on the second screw and a corresponding light hole passing through the first screw. The front side of the flat laser beam emitters on both sides are provided with a marking line, and the upper surface of the fixing base has a scale corresponding thereto.

The scale can be scaled in mm. The lower left and right slots have long holes on the lower edge to avoid the rotation of the planar laser beam emitters on both sides.

The knob of the corresponding planar laser beam emitter is rotated, and the left and right positions of the planar laser beam emitter in the corresponding fixing seat can be adjusted by the rotating screw. When multiple planar laser beam emitters are equidistant, each square in the X-Y Cartesian coordinate system is square. Each of the planar laser beam emitters in the scale adjustment fixture can be used to locate the new hole position by the intersection of the projection of the auxiliary plane laser beam on the table. According to this, the first hole position (coincident with the center point 0) can be quickly and accurately adjusted and estimated to the second hole position, and so on.

It should be noted that after designing and adjusting, the scale projection of the midplane laser beam emitter of the present invention on the table is only accurate at a certain distance between it and the table. When the distance becomes smaller, the scale projection is relatively reduced; when the distance becomes larger, the scale projection is relatively enlarged. In the latter two cases Under 6 000932, quantitative adjustment is relatively speaking. However, the adjustment distance of the projection of the auxiliary plane laser beam on the table formed by the adjustment of the scale on both sides of the plane laser beam emitter is always accurate.

The task of the present invention is accomplished in this way.

The invention not only clearly marks the projection of the center line of the bench drill spindle on the worktable, but also can project a clear, complete and beautiful Cartesian coordinate system including the X-axis, the Y-axis and its scale and characters; not only can it be fast and accurate The hole position is determined, and the position of the workpiece on the workbench can be quantitatively adjusted according to the Cartesian coordinate system projection, which is very convenient and quick. The fixed structure of the planar laser beam emitter is simple and can be installed at different positions of the vertical or headstock according to different specific conditions. It can be widely used in various bench drills such as bench drills, vertical drills, radial drills, and drilling and milling machines. BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

2 is a schematic view of a planar laser beam emitter of Embodiment 1 and its planar laser beam projection. 3 is a schematic view of a planar laser beam emitter of Embodiment 2 and its planar laser beam projection. Figure 4 is a schematic illustration of the two mounts of Embodiment 3, but showing only one of the posts. Figure 5 is a cross-sectional view taken along line A-A of Figure 4 .

Figure 6 is a schematic illustration of the projection of two planar laser beams of Example 3 on a table.

Figure 7 shows the existing projection pattern of a commercially available laser beam emitter. As is apparent from Fig. 7, the technique of expanding the beam of the collimated laser beam into various patterned laser beams belongs to the prior art.

Figure 8 is a projection of one of the laser emitters after the beam expander lens.

Figure 9 is a projection view of another laser emitter after the beam expander lens. detailed description

Example 1. A laser coordinate table drill, as shown in Figure 1 to Figure 2. It comprises a base 1, a stand 2, a table 3, a headstock 4, a motor 5, two planar laser beam emitters 9 and 12, and an electrical control system 8 wired to the planar laser beam emitters 9 and 12. The headstock 4 comprises a casing, a main shaft 6, a transmission mechanism, a sleeve and a feed mechanism 7 which are fitted over the main shaft 6 with bearings. Two planar laser beam emitters 9 and 12 are mounted on the stand 2 and the headstock 4, respectively. The center line of one of the planar laser beam emitters 9 is located in the front and rear center planes of the main shaft 6, and is obliquely mounted to the spindle center line 6. The center line of the other planar laser beam emitter 12 is located in the left and right center planes of the main shaft 6, Install down. The planar laser beams 10 and 13 emitted by the two planar laser beam emitters 9 and 12 coincide with the front and rear center planes and the left and right center planes of the main shaft 6, respectively.

The planar laser beam emitters 9 and 12 include at least one laser emitter 11 that emits a collimated beam 30 and a beam expander lens 29 mounted in front of the emitter end of the laser emitter 11. The beam expander lens 29 expands the collimated beam 30 into a fan-shaped planar laser beam 31 with X or Y character beams at both ends. The projection of the fan-shaped planar laser beam 31 in the table 3 perpendicular to the center line of the collimated beam 30 is A thin inline line 28 with X or Y characters at both ends.

The tail portions of the two planar laser east emitters 9 and 12 are respectively provided with inclined holes and transverse holes, and the corresponding fixing portions of the vertical cymbal 2 and the spindle box 4 are provided with screw holes, and the planar laser beam emitters 9 and 12 are directly fixed by screws, respectively. On the stand 2 and the headstock 4.

Example 2. A laser coordinate table drill, as shown in Figure 3. The planar laser beam emitters 9 and 12 include at least one laser emitter 11 that emits a collimated beam 30 and a beam expander lens 23 mounted in front of the emitter end of the laser emitter 11, through which the fan-shaped plane expanded by the beam expander lens 23 The laser beam 32 is also provided with a graduated beam, i.e., the projection of the fan-shaped planar laser beam 32 in the table 3 perpendicular to the center line of the collimated beam 30 is a thin one with X or Y characters at both ends and a tick mark on the side. Glyph line 24. As shown in Fig. 8, the projection of one of the laser emitters 11 after the beam expander lens 23 is a thin inline line 24 with X characters at both ends and tick marks on the sides. As shown in Fig. 9, the projection of the other laser emitter 11 after the beam expander lens 23 is a thin inline line 24 with Y characters at both ends and a scale line on the side.

The two planar laser beam emitters 9 and 12 are fixed to the spindle sleeve of the spindle headstock 4 via a fixing base. The same as the embodiment 1.

Example 3. A laser coordinate table drill, as shown in Figure 4 to Figure 5. The two planar laser beam emitters 9 and 12 are fixed to the stand 2 and the headstock 4 via fixing seats 14 and 15, respectively. In addition to the above-described intermediate plane laser beam emitters 9 and 12, the two fixing seats 14 and 15 are respectively mounted with a planar laser beam emitter 27 and 22 on both sides. The planar laser beam emitters 27 and 22 on both sides are mounted on an adjuster whose left and right positions are adjustable, and the plane laser beam emitted by them and the corresponding sector-shaped laser beam emitted by the plane laser beam emitter 9/12 located in the middle parallel.

The two fixing seats 14 and 15 are provided with an intermediate short groove 16 and two left and right long grooves 17. A midplane laser beam emitter 9/12 is fixed in the intermediate short groove 16. The adjuster is composed of a screw 18 and a shaft circlip 21 that is attached to the inner end thereof. One screw 18 and 19 are installed in each of the left and right long slots 17, The outer ends of the screws 18 and 19 protrude from the outer side of the fixing seat 14/15, and the head has a knob 20. The inner ends of the screws 18 and 19 project in the intermediate short groove 16 on which the shaft circlip 21 is mounted. The planar laser beam emitters 27 and 22 on both sides are provided with screw holes for mounting on the first screw 18 and corresponding light holes for passing through the second screw 19. The front upper ends of the planar laser beam emitters 27 and 22 on both sides are provided with a reticle 25, and the upper surface of the fixing base 14/15 is provided with a scale 26 corresponding thereto. The lower edges of the left and right long grooves have downward long holes 33. The planar laser beam emitters 27 and 22 on both sides pass through the elongated holes 33 to avoid the subsequent rotation during adjustment. Embodiment 3 is the same as Embodiment 2.

Of course, the second screw 19 can also be omitted, and the planar laser beam emitters 27 and 22 are mounted only on the first screw 18.

Embodiments 1~3 can not only clearly mark the projection of the centerline of the bench drill spindle on the workbench, but also project a clear, complete and beautiful Cartesian coordinate system including the X-axis, the Y-axis and its scale and characters; The hole position can be accurately determined, and the position of the workpiece on the worktable can be quantitatively adjusted according to the Cartesian coordinate system projection, which is very convenient and quick. The planar laser beam emitter has a simple fixing structure and can be installed at different positions of the vertical or headstock according to different specific conditions. It can be widely used in various bench drills such as bench drills, vertical drills, radial drills, and drilling and milling machines.

Claims

Rights request

A laser coordinate bench drill comprising a base, a vertical cymbal, a spindle head, a motor, two planar laser beam emitters, and an electrical control system electrically connected to the planar laser beam emitter, the spindle box including a housing, a spindle a transmission mechanism, a sleeve and a feed mechanism with a bearing disposed outside the main shaft, characterized in that two planar laser beam emitters are mounted on a vertical or headstock, wherein a center line of a planar laser beam emitter is located at the main shaft In the front and rear center planes, tilt down or to the centerline of the spindle, the centerline of the other planar laser beam emitter is located in the left and right center planes of the spindle, tilted down or toward the centerline of the spindle, and two planar laser beam emitters The emitted planar laser beams coincide with the front and rear center planes and the left and right center planes of the main shaft, respectively.

2. The laser coordinate table drill according to claim 1, wherein said planar laser beam emitter comprises at least one laser emitter that emits a collimated beam and a beam expander lens mounted in front of the emitting end of the laser emitter. The beam expanding lens expands the collimated beam into a fan-shaped planar beam with a character beam at both ends, and the projection of the fan-shaped planar beam in a plane perpendicular to the center line of the collimated beam is a thin shape with X or Y characters at both ends line.

3. A laser coordinate table drill according to claim 1 or 2, wherein said planar laser beam emitter comprises at least one laser emitter emitting a collimated beam and an extension mounted in front of the emitting end of the laser emitter The beam lens, the fan-shaped planar beam expanded by the beam expander lens, is also provided with a graduated beam, that is, the projection of the fan-shaped planar beam in a plane perpendicular to the center line of the collimated beam is a fine inline line with a scale line.

4. A laser coordinate table drill according to claim 1 or 2, characterized in that the two planar laser beam emitters have vertical or oblique holes in the tail, and corresponding fixings on the vertical or headstock Screw holes, flat laser beam emitters are screwed to the vertical or headstock.

5. The laser coordinate table drill according to claim 3, wherein the two planar laser beam emitters have vertical holes or inclined holes at the tail portions, and screw holes are formed in the corresponding fixing portions of the vertical or headstock boxes. The flat laser beam emitter is screwed to the vertical or headstock.

6. A laser coordinate table drill according to claim 1 or 2, characterized in that said two planar laser beam emitters are fixed to the vertical or headstock by one or two mounts.

7. A laser coordinate table drill according to claim 3, wherein said two planar laser beam emitters are fixed to the vertical or headstock by one or two mounts.

8. The laser coordinate table drill according to claim 6, wherein said two fixed seats are mounted with the above-mentioned planar laser beam emitters in the middle, and 1-2 are respectively mounted on both sides thereof. Planar laser beam emitters, the planar laser beam emitters on both sides are mounted on adjusters that adjust their left and right positions and they emit a planar laser beam with a corresponding planar laser beam emitted by a planar laser beam emitter or The fan-shaped plane laser beams are parallel.

9. The laser coordinate table drill according to claim 7, wherein said two fixed seats are mounted with the above-mentioned planar laser beam emitters in the middle, and 1-2 are respectively mounted on both sides thereof. Planar laser beam emitters, the planar laser beam emitters on both sides are mounted on adjusters that adjust their left and right positions and they emit a planar laser beam and a corresponding sectoral laser beam emitted by a planar laser beam emitter in the middle parallel.

10. The laser coordinate table drill according to claim 8 or 9, wherein the two fixing seats are provided with a middle short groove and two left and right long grooves, and the intermediate short groove is fixed with a middle plane laser beam emission. The adjuster is composed of a screw and a circlip for the shaft mounted at the inner end thereof, and 1 to 2 screws are respectively mounted in the left and right long grooves, and the outer end of the screw protrudes from the outer side of the fixed seat with a knob thereon The inner end of the screw protrudes in the middle short groove, and the shaft circlip is mounted thereon, and the first planar laser beam emitter on both sides has a screw hole mounted on the first screw and passes through the 2 corresponding optical apertures of the screw, the second planar laser beam emitter on both sides with screw holes mounted on the 笫2 screw and corresponding optical apertures through the first screw, planar laser beam emitters on both sides The front end of the front side is provided with a marking line, the upper surface of the fixing seat has a corresponding scale, and the lower edges of the left and right long grooves have long holes.