Supplementary teaching device of university's computer basis
Technical Field
The invention relates to the technical field of computer-aided teaching devices, in particular to a university computer basic aided teaching device.
Background
In recent years, the visual design influences the feelings and concepts of people with unique artistic charm in the mental culture fields of movie design, column packaging (including plane design and advertisement design), game design and the like, plays an important role in the daily life of people, and specific three-dimensional structures can be divided into two categories for core modeling of the visual design: a planar solid and a curved solid; the curved surface three-dimensional body is used as a new modeling characteristic, most of the curved surface three-dimensional bodies are formed by adopting Boolean operation as a logic frame, specifically, four-corner (or triangular) connecting curved surfaces formed by combination, intersection and subtraction are formed, the curved surfaces are also called Boolean cloth covers (or wiring), and the curved surfaces are connected with each other through a plurality of Boolean cloth covers to form a curved surface three-dimensional body.
In the process of college computer aided design teaching, the curved surface stereo and the Boolean cloth cover thereof are difficult points for teaching, students are difficult to understand the form and structure of the Boolean cloth cover under the condition of no actual contact operation, the traditional teaching method is usually teacher board drawing or real machine demonstration, but the teaching method has many defects, firstly, the former can only board draw a simpler curved surface stereo, and meanwhile, the demonstration effect is not ideal; the latter is carried out the real machine demonstration under the condition that the student does not establish the theoretical thinking of curved surface, and the student is difficult to understand the shaping of Boolean curved surface under a virtual operating environment, and has the demonstration difficulty for teaching.
Therefore, a university computer foundation auxiliary teaching device is provided.
Disclosure of Invention
The invention aims to provide a basic auxiliary teaching device for a university computer, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a university's computer basis auxiliary teaching device, includes workstation, scanning mechanism and two actuating mechanism that are symmetrical each other, the front surface mounting of workstation has the controller, the upper surface mid-mounting of workstation has the second position sensor, scanning mechanism includes two fixed plates, the lantern ring, twenty two connect the casing, forty four laser sensor and forty four first position sensor, the surface both sides of lantern ring respectively with two the relative one side welding of fixed plate, the inside wall of connecting the casing with the surface fixed connection of lantern ring, two the surface fixed connection of laser sensor is in the inside wall of connecting the casing, first position sensor installs in laser sensor's surface, first position sensor's electrical input end with laser sensor's electrical output end electrical connection, the electric input end of the first position sensor is electrically connected with the electric output end of the second position sensor, and a curved surface display model is arranged on the upper surface of the workbench.
As further preferable in the present technical solution: the lower surface of workstation has four universal wheels through bolt threaded connection, the front surface of workstation articulates through the round pin axle has a body.
As further preferable in the present technical solution: the scanning mechanism further comprises twenty-two signal lamps, and the outer surfaces of the signal lamps are mounted on the inner side wall of the connecting shell.
As further preferable in the present technical solution: the driving mechanism comprises a connecting frame, a servo motor, a driving belt wheel, a rotating belt, a driven belt wheel, a ball screw and a sliding frame, the outer surface of the servo motor is arranged on the inner side wall of the connecting frame, the output shaft of the servo motor is in key connection with the inner side wall of the driving belt wheel, the gear teeth of the driving belt wheel are meshed with the inner side wall of the rotating belt, the inner side wall of the rotating belt is meshed with the gear teeth of the driven belt wheel, the upper surface of the driven pulley is fixedly connected with the threaded rod of the ball screw through a coupler, a moving nut of the ball screw is welded with the rear surface of the carriage, one side of the carriage is in threaded connection with the fixed plate through a bolt, the other side of the connecting frame is connected with two connecting blocks through a bolt thread, and the inner side walls of the two connecting blocks are respectively and rotatably connected with the upper part and the lower part of the threaded rod of the ball screw through bearings.
As further preferable in the present technical solution: the other side welding of balladeur train has two sliders, there are two slide rails one side of link through bolt symmetry threaded connection, the inside wall of slider with the surface sliding connection of slide rail.
As further preferable in the present technical solution: two supporting frames are symmetrically connected to the two side faces of the workbench through bolts in a threaded mode, and the upper surfaces of the supporting frames are welded to the lower surface of the connecting frame.
As further preferable in the present technical solution: the rear surface of workstation has the show shelf through bolt threaded connection, the display screen is installed to the inside wall of show shelf.
As further preferable in the present technical solution: the electric input end of the controller is electrically connected with the electric output ends of the first position sensor and the laser sensor, and the electric output end of the controller is electrically connected with the electric input ends of the servo motor, the signal lamp and the display screen.
Compared with the prior art, the invention has the beneficial effects that:
the device utilizes a scanning mechanism to be matched with a curved surface display model, Boolean wiring at each angle and each position of the curved surface display model is displayed in an actual environment, wherein a laser sensor is matched with a first position sensor to carry out signal interaction, dead-angle-free scanning is carried out on the curved surface display model under the driving action of a driving mechanism, the obtained Boolean wiring relation is captured by the signal interaction of the first position sensor and a second position sensor, after the wiring is carried out through a controller, data storage is carried out by means of ranging of the laser sensor, finally, a scanning effect is put on a display screen, students are fully displayed and taught, and the direct-view perception and the requirement for high-efficiency teaching are met;
the curved surface degree and the smoothness degree of the curved surface model depend on the number of the surfaces of the Boolean cloth cover, the controller controls the scanning mechanism of the even number, the connecting shell and the electric elements of the scanning mechanism to start and stop, the increase or decrease of the number of the scanned surfaces is controlled, the starting number of the scanning mechanism is controlled, the connecting line mode and the cloth cover mode of the curved surface body are displayed more visually, the three-dimensional thinking of the curved surface of a student is fully developed, the student is fully displayed and taught, the direct-looking feeling is realized, and the requirement of high-efficiency teaching is met.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure according to the present invention;
FIG. 2 is a schematic view of another perspective structure according to the present invention;
FIG. 3 is a schematic perspective view of a workbench according to the present invention;
FIG. 4 is a schematic perspective view of a scanning mechanism according to the present invention;
FIG. 5 is a perspective view of the driving mechanism of the present invention;
FIG. 6 is a perspective view of another embodiment of the driving mechanism of the present invention;
FIG. 7 is a schematic perspective view of the carriage of the present invention;
fig. 8 is a circuit diagram of the present invention.
In the figure: 1. a work table; 101. a universal wheel; 102. a door body; 103. a second position sensor; 104. a support frame; 2. a controller; 3. a scanning mechanism; 301. a fixing plate; 302. a collar; 303. connecting the shell; 304. a laser sensor; 305. a first position sensor; 306. a signal lamp; 4. a drive mechanism; 401. a connecting frame; 4011. connecting blocks; 402. a servo motor; 403. a driving pulley; 404. a rotating belt; 405. a driven pulley; 406. a ball screw; 407. a carriage; 408. a slide rail; 4081. a slider; 5. a display shelf; 501. a display screen; 6. and (5) displaying the model on the curved surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-8, the present invention provides a technical solution: a university computer foundation auxiliary teaching device comprises a workbench 1, a scanning mechanism 3 and two mutually symmetrical driving mechanisms 4, wherein a controller 2 is installed on the front surface of the workbench 1, a second position sensor 103 is installed in the middle of the upper surface of the workbench 1, the scanning mechanism 3 comprises two fixing plates 301, a lantern ring 302, twenty-two connecting shells 303, forty-four laser sensors 304 and forty-four first position sensors 305, two sides of the outer surface of the lantern ring 302 are respectively welded with the opposite surfaces of the two fixing plates 301, the inner side wall of the connecting shell 303 is fixedly connected with the outer surface of the lantern ring 302, the outer surfaces of the two laser sensors 304 are fixedly connected with the inner side wall of the connecting shell 303, the first position sensors 305 are installed on the outer surface of the laser sensors 304, the electrical input end of the first position sensor 305 is electrically connected with the electrical output end of the laser sensors 304, the electrical input end of the first position sensor 305 is electrically connected to the electrical output end of the second position sensor 103, and the upper surface of the working platform 1 is provided with a curved surface display model 6.
In this embodiment, specifically: the lower surface of the workbench 1 is connected with four universal wheels 101 through bolt threads, and the front surface of the workbench 1 is hinged with a door body 102 through a pin shaft; the universal wheel 101 provides the mobility demand for whole mechanism, and the door body 102 is responsible for opening and closing workstation 1, and the inside of workstation 1 is used for placing the curved surface show model 6 of different shapes for the different curved surface effects of show satisfy different curved surface teaching demands.
In this embodiment, specifically: the scanning mechanism 3 further comprises twenty-two signal lamps 306, wherein the outer surfaces of the signal lamps 306 are arranged on the inner side wall of the connecting shell 303; when the scanning mechanism 3 performs the teaching of the exhibition of the increase and decrease in the number of planes, it is necessary to turn on or off the different connection housing 303 and the laser sensor 304 and the first position sensor 305 connected thereto, and during this period, the lighting or turning off of the signal lamp 306 is used as a signal to provide the students with the position and relationship of the current wiring.
In this embodiment, specifically: the driving mechanism 4 comprises a connecting frame 401, a servo motor 402 and a driving belt wheel 403, the outer surface of a servo motor 402 is arranged on the inner side wall of a connecting frame 401, an output shaft of the servo motor 402 is connected with the inner side wall key of a driving pulley 403, gear teeth of the driving pulley 403 are meshed with the inner side wall of the rotating belt 404, the inner side wall of the rotating belt 404 is meshed with the gear teeth of the driven pulley 405, the upper surface of the driven pulley 405 is fixedly connected with a threaded rod of the ball screw 406 through a coupler, a moving nut of the ball screw 406 is welded with the rear surface of the sliding frame 407, one side of the sliding frame 407 is connected with a fixed plate 301 through a bolt thread, the other side of the connecting frame 401 is connected with two connecting blocks 4011 through bolt threads, and the inner side walls of the two connecting blocks 4011 are respectively and rotatably connected with the upper part and the lower part of the threaded; in the driving mechanism 4, the servo motor 402 is controlled by the controller 2, and the output shaft thereof drives the driving pulley 403 to drive the rotating belt 404, so that the driven pulley 405 drives the threaded rod of the ball screw 406 to rotate, and the moving nut of the ball screw 406 drives the sliding frame 407 and the scanning mechanism 3 to move up and down, thereby meeting the requirements of all-dimensional scanning and display teaching on the curved surface display model 6.
In this embodiment, specifically: two sliding blocks 4081 are welded on the other side of the sliding frame 407, two sliding rails 408 are symmetrically and threadedly connected to one side of the connecting frame 401 through bolts, and the inner side walls of the sliding blocks 4081 are slidably connected with the outer surfaces of the sliding rails 408; when the sliding frame 407 drives the scanning mechanism 3 to move up and down under the driving action of the ball screw 406, the sliding block 4081 of the sliding frame 407 is matched with the sliding rail 408, so that the sliding frame 407 is more stable and firm in the moving process, and the driving effect is fully satisfied.
In this embodiment, specifically: two support frames 104 are symmetrically connected to two side surfaces of the workbench 1 through bolts in a threaded manner, and the upper surfaces of the support frames 104 are welded to the lower surface of the connecting frame 401; the support frame 104 is used for connecting the two sets of driving mechanisms 4.
In this embodiment, specifically: the rear surface of the workbench 1 is connected with a display rack 5 through bolt threads, and the inner side wall of the display rack 5 is provided with a display screen 501; the display screen 501 is used for displaying the actual scanning effect and the wiring effect of the curved surface display model 6.
In this embodiment, specifically: an electrical input end of the controller 2 is electrically connected with electrical output ends of the first position sensor 305 and the laser sensor 304, and an electrical output end of the controller 2 is electrically connected with electrical input ends of the servo motor 402, the signal lamp 306 and the display screen 501; the specific model of the controller 2 is FX3 GA; the first position sensor 305 is specifically model IM30-D1NA 25; the specific model of the laser sensor 304 is DPE-10; the specific model of the servo motor 402 is HFF80B4B 5.
Working principle or structural principle: firstly, the integral device is pushed to a display area through a universal wheel 101, a curved surface display model 6 to be displayed is taken out of a workbench 1, placed on the upper surface of the workbench 1 and sleeved by a lantern ring 302;
then starting the controller 2 for demonstration, wherein the controller 2 firstly starts each group of connecting shells 303 and two carried first position sensors 305 and laser sensors 304, each two groups of laser sensors 304 emit ranging laser to irradiate the outer surface of the curved surface display model 6, record the distance and feed back the ranging laser to the first position sensors 305, and the ranging laser is fed back to the second position sensors 103 from the first position sensors 305 to register signals and is sent to the controller 2;
the controller 2 judges the horizontal, longitudinal and height relations of the two groups of ranging lasers and records the relations into points, the recording points formed by the two laser sensors 304 connected with the shell 303 are connected through the controller 2, the recording points formed by the two laser sensors 304 connected with the shell 303 in each group are connected again by the connecting shell 303 at the left end and the right end and the recording points formed by the two laser sensors 304, the driving mechanism 4 drives the scanning mechanism 3 to integrally ascend, and the integral laser sensors 304 are stopped and restarted according to the time period in the ascending process, so that the curved surface display model 6 at the upper position is recorded and connected again, and is connected with the formed connecting surface at the lower part; after reaching the top position, the device displays the Boolean wiring curved surface scanned by the curved surface display model 6 and is molded, and the Boolean wiring curved surface is put on the display screen 501 in the whole process, so that students are fully displayed and taught, direct-looking perception is realized, the requirement of high-efficiency teaching is met, and teachers can pause the whole device through the controller 2 in the scanning process of the device according to actual conditions to carry out relevant explanation by matching with the device;
meanwhile, when the scanning mechanism 3 performs the teaching of the number of faces increase and decrease, different connecting shells 303, and the connected laser sensor 304 and the first position sensor 305 connected to the connecting shells need to be turned on or off, and during the period, the turning-on or turning-off of the signal lamp 306 is used as a signal, so that the current wiring position and relationship are provided for students, and the students are helped to fully understand the use and importance of the number of faces in the curved surface modeling and the principle of the Boolean wiring;
in the driving mechanism 4, the servo motor 402 is controlled by the controller 2, and the output shaft thereof drives the driving pulley 403 to drive the rotating belt 404, so that the driven pulley 405 drives the threaded rod of the ball screw 406 to rotate, and the moving nut of the ball screw 406 drives the sliding frame 407 and the scanning mechanism 3 to move up and down, thereby meeting the requirements of all-dimensional scanning and display teaching on the curved surface display model 6.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.