Industrial robot teaching device

Abstract

The utility model relates to an industrial robot teaching device. The industrial robot teaching device provided by the utility model comprises a training platform which is hollow inside and is provided with an installation space; the multi-axis robot is arranged in the mounting space, and the tail end of the multi-axis robot can move in the three-dimensional space; the tool quick-change unit is arranged in the stroke of the multi-axis robot and comprises a plurality of groups of quick-change tools, and the tail end of the multi-axis robot is connected with each group of quick-change tools for switching; and the PLC is electrically connected with the multi-axis robot and the tool quick-change unit. According to the industrial robot teaching device provided by the utility model, different quick-change tools and functional units matched with the quick-change tools for use can be arranged according to teaching requirements, so that the teaching content is enriched; and meanwhile, different functions in a plurality of processes can be realized only by matching one multi-axis robot with different tools, and a plurality of robots do not need to be arranged to finish different processes respectively, so that the volume of the teaching device is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching device technical field, especially, relate to a kind of industrial robot teaching device. BACKGROUND

[0002] At present, as a kind of intelligent automation programmable equipment, industrial robot has been widely used in industrial automation field, and the rapid development of industry needs more and more professional talents of industrial robot, but high-quality industrial robot talents are in short supply, and schools urgently need relevant teaching equipment for personnel training.

[0003] However, the existing industrial robot teaching device uses the industrial robot applied in actual production as teaching equipment, and the industrial robot in actual production is usually set to complete one of the actual production processes, so the action is single, which leads to the problems of single function and monotonous teaching content of the existing industrial robot teaching device, and cannot meet the needs of industrial robot daily teaching. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides an industrial robot teaching device.

[0005] An industrial robot teaching device comprises a practical training platform, a multi-axis robot, a tool quick-change unit and a PLC controller.

[0006] The industrial robot teaching device sets different quick-change tools and functional units cooperating with the quick-change tools according to teaching needs, the multi-axis robot uses different quick-change tools to realize different functions, which enriches the teaching content; meanwhile, different functions in multiple processes can be realized by using one multi-axis robot with different tools, without the need to set multiple robots to complete different processes, which effectively reduces the size of the teaching device.

[0007] Further, the practical training platform comprises a mounting plate, which divides the mounting space into a first space and a second space arranged in an upper-lower direction, the multi-axis robot and the tool quick-change unit are installed in the first space, and the PLC controller is installed in the second space.

[0008] According to the above technical solution, the part for teaching demonstration in the industrial robot teaching device is installed in the first space, and the part for control and circuit is installed in the second space, so that the mounting space in the practical training platform is reasonably utilized to reduce the size of the teaching device.

[0009] Further, the tool quick change unit further comprises a tool switching platform, which is installed on the mounting plate and has a platform surface parallel to the surface of the mounting plate; a plurality of work site holes are formed in the platform surface of the tool switching platform, and the quick change tools are stored in the work site holes.

[0010] According to the above technical solution, the work site holes are formed in the tool switching platform to place the quick change tools.

[0011] Further, the quick change tool comprises a connecting plate, a female connector and an execution tool; the connecting plate covers the work site hole in a direction perpendicular to the platform surface of the tool switching platform; the female connector is installed on the upper surface of the connecting plate and located above the work site hole, and the execution tool is installed on the lower surface of the connecting plate and passes through the work site hole.

[0012] According to the above technical solution, the connecting plate connects the female connector and the execution tool, and the quick change tool is clamped in the work site hole through the connecting plate.

[0013] Further, the edges of the work site hole are provided with positioning pins with axes perpendicular to the platform surface of the tool switching platform, the connecting plate is located between the positioning pins, and the side surface is provided with positioning openings matched with the positioning pins.

[0014] According to the above technical solution, the quick change tool is placed more accurately through the cooperation of the positioning pins and the positioning openings.

[0015] Further, the multi-axis robot comprises a mechanical arm and a male connector; the male connector is installed at the end of the mechanical arm and can be connected with the female connector.

[0016] According to the above technical solution, the male connector and the female connector of different quick change tools are matched, so that the multi-axis robot uses different quick change tools to realize different functions.

[0017] Further, the industrial robot teaching device further comprises an assembly unit located in the stroke of the multi-axis robot, the assembly unit comprises an assembly workbench, two limiting blocks and a push cylinder; the assembly workbench is installed on the mounting plate; one limiting block is connected with the piston rod of the push cylinder and can move towards and / or away from the direction of the other limiting block fixedly installed on the surface of the assembly workbench; the opposite sides of the two limiting blocks are provided with limiting grooves.

[0018] According to the above technical solution, the assembly unit demonstrates the process of assembling the packaging box, and the two limiting blocks can limit the packaging box body of different sizes to avoid the offset of the packaging box body during the assembly and covering.

[0019] Further, the industrial robot teaching device further comprises a feeding unit located in the stroke of the multi-axis robot, the feeding unit comprises a bottle cap supply part and a container bottle conveying part, the bottle cap supply part and the container bottle conveying part are installed on the mounting plate; the bottle cap supply part comprises a feeding platform, a storage cylinder, a pushing rod and a pushing cylinder; the feeding platform is parallel to the surface of the mounting plate, the storage cylinder, the pushing rod and the pushing cylinder are arranged on the feeding platform, the bottom of the storage cylinder is provided with a pushing channel communicated with the feeding platform, one end of the pushing rod is in contact with the piston rod of the pushing cylinder, and the other end of the pushing rod can extend into the bottom of the pushing channel.

[0020] The container bottle conveying part comprises a conveying belt and a container bottle loading plate; the container bottle loading plate is provided with a mounting groove for placing the container bottle, and the container bottle loading plate moves with the conveying belt.

[0021] According to the technical scheme, the feeding unit supplies the container bottle and the bottle cap for the multi-axis robot to take and complete the process demonstration of the container bottle cap, and the container bottle is limited by the container bottle loading plate, so that the container bottle is prevented from deviating during the cap loading.

[0022] Further, the container conveying part further comprises a limiting block located downstream of the conveying belt, and the limiting block is provided with a groove matched with the container bottle loading plate on the side facing the upstream of the conveying belt.

[0023] According to the technical scheme, the limiting block forms a discharging station downstream of the conveying belt, and the container bottle loading plate loaded with the container bottle falls from the conveying belt.

[0024] Further, the industrial robot teaching device further comprises a warehouse unit located in the stroke of the multi-axis robot, the warehouse unit comprises a material plate and a fixing frame, the fixing frame is fixed on the mounting plate, the material plate is installed on the fixing frame, and the material plate is provided with a mounting part for placing the workpiece.

[0025] According to the technical scheme, the workpiece is placed by the warehouse unit so as to be taken by the multi-axis robot. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A perspective structural schematic view of the practical training platform is provided in the utility model;

[0027] Figure 2 A structural schematic view of the inside of the cabinet body is provided in the utility model;

[0028] Figure 3 For Figure 2 An enlarged view of A in the middle;

[0029] Figure 4A three-dimensional structural diagram of the multi-axis robot provided by this utility model;

[0030] Figure 5 A three-dimensional structural diagram of the quick-change unit provided by this utility model;

[0031] Figure 6 A three-dimensional structural diagram of the assembly unit provided by this utility model;

[0032] Figure 7 A three-dimensional structural diagram of the feeding unit provided by this utility model;

[0033] Figure 8 A three-dimensional structural diagram of the warehouse unit provided by this utility model. Detailed Implementation

[0034] The applicant conducted research and analysis on existing industrial robot production lines and industrial robot teaching devices, finding that: in actual production lines, industrial robots are typically only equipped with the fixtures required for the corresponding process to complete that process. Current teaching devices, however, are simply miniaturized versions of industrial robot production lines, thus only capable of completing a single process. This results in limited functionality, poor teaching quality, and the need for multiple industrial robots to demonstrate the entire production process, leading to high costs. Therefore, the applicant proposes an industrial robot teaching device that highly simulates an actual industrial robot production line while incorporating a quick-change tooling platform. This platform allows for the configuration of appropriate tooling according to specific teaching needs. Furthermore, during demonstrations, the robot can freely select different tooling to demonstrate different processes, enriching the teaching content.

[0035] Taking the assembly and production of bottle capping and sealing into packaging boxes as an example, the following is one embodiment of the industrial robot teaching device of this utility model:

[0036] Please refer to Figures 1 to 8 , Figure 1 A three-dimensional structural diagram of the training platform provided by this utility model; Figure 2 This is a schematic diagram of the internal structure of the cabinet provided by this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 A three-dimensional structural diagram of the multi-axis robot provided by this utility model; Figure 5 A three-dimensional structural diagram of the quick-change unit provided by this utility model;

[0037] Figure 6 A three-dimensional structural diagram of the assembly unit provided by this utility model; Figure 7 A three-dimensional structural diagram of the feeding unit provided by this utility model; Figure 8The utility model provides a warehouse unit's three -dimensional structure schematic diagram.

[0038] The utility model provides a kind of industrial robot teaching device, including practical training platform 1, multi-axis robot 2, tool quick unit 3, assembly unit 4, feeding unit 5, warehouse unit 6 and PLC controller (not shown in drawing).Practical training platform 1 inside is equipped with installation space, multi-axis robot 2 and the PLC controller are arranged in the installation space, tool quick unit 3, assembly unit 4, feeding unit 5 and warehouse unit 6 with multi-axis robot 2 as center, respectively installed in the stroke range of multi-axis robot 2.

[0039] Please refer to Figure 1 And Figure 2 Practical training platform 1 includes internally hollow cabinet 11, mounting plate 12, double door 13, universal wheel 14 and alarm lamp 15.Cabinet 11 is the box body of half-closed structure, and the opening is respectively arranged on front and back sides, and the opposite double door 13 is respectively pivoted on the opening of front and back sides of cabinet 11, forms relatively closed installation space, and mounting plate 12 is installed in the middle of vertical direction of cabinet 11, and the plate surface is parallel with the plate surface of top surface of cabinet 11, and the installation space is divided into first space 101 and second space 102 arranged in upper and lower. Multi-axis robot 2, tool quick unit 3, assembly unit 4, feeding unit 5 and warehouse unit 6 are installed in first space 101, and PLC controller is installed in second space 102.Universal wheel 14 has four, is respectively installed in the bottom surface four corners of cabinet 11, and it is convenient to move practical training platform 1.Alarm lamp 15 is installed on the top surface of cabinet 11 and is electrically connected with PLC controller, and alarm lamp 15 can display red, yellow and green three states, and three states are respectively corresponding with three different states of device fault, device maintenance adjustment and normal working, to help user to judge the working state of the device quickly.Preferably, cabinet 11 and double door 13 are transparent pieces, to facilitate user to observe the operation of industrial robot teaching device from outside.

[0040] Please refer to Figure 3 And Figure 4 Multi-axis robot 2 is installed on mounting plate 12 and includes mechanical arm 21, flange 22 and male connector 23.Mechanical arm 21 is six-axis mechanical arm in prior art, has six degrees of freedom, can move in three-dimensional space to perform various tasks, and male connector 23 is connected on the end of mechanical arm 21 through flange 22.Preferably, visual detector 24 is also arranged on the end of mechanical arm 21, and the shooting direction of visual detector 24 is perpendicular to the axial direction of male connector 23 and is separated from male connector 23 by a certain distance, for shooting and detecting whether each clamped workpiece has flaw.

[0041] Referring to Figure 5 The tool switching platform 31 is installed on the mounting plate 12, and its table surface is parallel to the surface of the mounting plate 12 and within the stroke of the robot arm 21. A plurality of work site holes 311 for storing different quick-change tools 32 are formed on the table surface of the tool switching platform 31, and a plurality of positioning pins 312 are protruding from the edges of the work site holes 311, the axes of the positioning pins 312 being perpendicular to the table surface of the tool switching platform 31. The quick-change tools 32 are located between the positioning pins 312, and the positioning pins 312 play a positioning role when the quick-change tools 32 are taken or placed. The quick-change tool 32 comprises a connecting plate 321, a female connector 322, and an execution tool 323. In the direction perpendicular to the table surface of the tool switching platform 31, the cross-sectional area of the connecting plate 321 is larger than that of the work site hole 311, and its surface is connected with the table surface of the tool switching platform 31 and covers the work site hole 311. The side surface of the connecting plate 321 is also provided with a positioning opening 3211 matched with the positioning pin 312. The female connector 322 is installed on the upper surface of the connecting plate 321 and above the work site hole 311, and is matched with the male connector 23 at the end of the multi-axis robot 2 to replace different quick-change tools 32. In this embodiment, the male connector 23 and the female connector 322 are pneumatic quick-change discs in the prior art, and are connected and separated by a pneumatic device (not shown in the figure). In other embodiments, the male connector 23 and the female connector 322 can be connected and separated by screw threads, and are not limited to this. The execution tool 323 is installed on the lower surface of the connecting plate 321 and passes through the work site hole 311. The execution tool 323 can be selected according to actual teaching needs, including but not limited to clamping tools, paintbrush tools, and spraying tools in the prior art. In this embodiment, three sets of quick-change tools 32 are provided, and a bottle cap clamping clamp 3231, a box carrying clamp 3232, and a box cover suction clamp 3233 are respectively installed.

[0042] Referring to Figure 6The assembling unit 4 comprises an assembling workbench 41, two limiting blocks 42 and a pushing cylinder 43. The assembling workbench 41 is installed on the mounting plate 12 and located within the stroke of the multi-axis robot 2. The two limiting blocks 42 are provided with limiting grooves 420 matched with the shape of the packaging box body. One limiting block 42 is fixedly installed on the assembling workbench 41, and the other limiting block 42 is connected with the piston rod of the pushing cylinder 43. The limiting grooves 420 of the two limiting blocks 42 are oppositely arranged. When the packaging box body is placed on the assembling workbench 41 by the multi-axis robot 2, the limiting block 42 connected with the piston rod of the pushing cylinder 44 can push the packaging box body to move towards the limiting block 42 fixedly installed on the assembling workbench 41 under the action of the pushing cylinder 44, and is clamped in the clamping position (not marked in the figure) formed by the opposite limiting grooves 420 of the two limiting blocks 42 for positioning, so as to avoid the deviation of the packaging box body during capping.

[0043] Please refer to Figure 7 The feeding unit 5 comprises a cap supply part 51 and a container bottle conveying part 52, and the cap supply part 51 and the container bottle conveying part 52 are installed on the mounting plate 12 and located within the stroke of the multi-axis robot 2. The cap supply part 51 stores and supplies caps, and comprises a feeding platform 511, a storage cylinder 512, a pushing rod 513 and a pushing cylinder 514. The feeding platform 511 is parallel to the surface of the mounting plate 12 and located on one side of the container bottle conveying part 52, and the storage cylinder 512, the pushing rod 513 and the pushing cylinder 514 are installed on the feeding platform 511. The storage cylinder 512 extends in the vertical direction and can vertically stack multiple caps. The storage cylinder 512 is provided with a pushing passage (not marked in the figure) at the bottom and in communication with the feeding platform 511. One end of the pushing rod 513 is connected with the piston rod of the pushing cylinder 514, and the other end extends into the pushing passage and contacts the cap located at the bottom of the storage cylinder 512. The pushing cylinder 514 drives the pushing rod 513 to push the cap out of the pushing passage to the feeding platform 511 in front, so as to be clamped by the cap clamping jig 3231.

[0044] The container bottle conveying part 52 transports the supply container bottles, comprising a first transmission roller 521, a second transmission roller 522, a third transmission roller 523, a conveying belt 524, a belt 525, a container bottle loading plate 526, a limiting block 527 and a driving motor (not shown in the figure). The first transmission roller 521, the second transmission roller 522 and the third transmission roller 523 are parallel to each other and parallel to the plate surface of the mounting plate 12. The first transmission roller 521 and the second transmission roller 522 are drivingly connected through the conveying belt 524, so that a conveying surface upward and parallel to the plate surface of the mounting plate 12 is formed on the conveying belt 524. The second transmission roller 522 and the third transmission roller 523 are drivingly connected through the belt 525, and the output shaft of the driving motor is connected with the third transmission roller 523. The third transmission roller 523 is driven to rotate by the driving motor, the third transmission roller 523 drives the second transmission roller 522 to rotate through the belt 525, the second transmission roller 522 is drivingly connected with the first transmission roller 521 through the conveying belt 524, and the conveying belt 524 moves directionally between the first transmission roller 521 and the second transmission roller 522, so that the transportation is realized. The container bottle loading plate 526 is provided with installation grooves 5261 which are matched with the sizes of the container bottles (not shown in the figure) and the bottoms of the container bottles, the container bottles are limitedly installed in the installation grooves 5261 and are transported together with the container bottle loading plate 526 on the conveying belt 524, so as to avoid the deviation of the container bottles during subsequent cap installation. The limiting block 527 is arranged at the end of the conveying belt 524, the limiting block 527 is provided with a groove 5271 on the side upstream of the conveying direction of the conveying belt 524, the size of the groove 5271 is matched with the container bottle loading plate 526, so as to form a discharging station and avoid the container bottle loading plate 526 from falling off the conveying belt 524.

[0045] Please refer to Figure 8 The warehouse unit 6 is provided with packaging box bodies and box covers, comprising a material plate 61 and a fixing frame 62, the fixing frame 62 is fixed on the mounting plate 12, and the two ends of the material plate 61 are fixedly installed on the fixing frame 62. The plate surface of the material plate 61 is provided with installation parts 611 matched with the packaging box bodies and the box covers respectively, so as to place the packaging box bodies and the box covers respectively. Preferably, photoelectric sensors (not shown in the figure) corresponding to the installation parts 611 are arranged on the material plate 61, the photoelectric sensors are electrically connected with the PLC controller, and whether the packaging box bodies and / or the box covers are placed in the installation parts 611 is detected.

[0046] The PLC controller controls the whole process of the container bottle cap installation and packaging, and is electrically connected with the mechanical arm 21, the visual detector 24, the pushing cylinder 44, the pushing cylinder 514 and the driving motor respectively.

[0047] The working principle of the industrial robot teaching device is as follows: the container bottle is placed on the container bottle loading plate 526, is transported to the discharging station downstream of the conveying belt 524, the push material air cylinder 514 drives the push material rod 513 to push the bottle cap out to the feeding platform 511; the male connector 23 cooperates with the female connector 322 corresponding to the box carrying clamp 3232, the multi-axis robot 2 uses the box carrying clamp 3232 to carry the packaging box from the material plate 61 to the assembly workbench 41, the push cylinder 43 drives the piston rod connecting limiting block 42 to push the packaging box to move to another limiting block 42, and the packaging box is pre-positioned; then the multi-axis robot 2 places the box carrying clamp 3232 back on the tool switching platform 31, the male connector 23 cooperates with the female connector 322 corresponding to the bottle cap clamping clamp 3231 again, the multi-axis robot 2 uses the bottle cap clamping clamp 3231 to clamp the bottle cap and fix it to the container bottle, then clamps the container bottle with the assembled bottle cap into the packaging box, then places the bottle cap clamping clamp 3231 back on the tool switching platform 31, the male connector 23 cooperates with the female connector 322 corresponding to the box cover adsorption clamp 3233, the multi-axis robot 2 uses the box cover adsorption clamp 3233 to adsorb the box cover above the packaging box from the material plate 61, and applies pressure to make the box cover fixed to the packaging box, completes the capping, and transfers and stores the packaging box with the assembled box cover.

[0048] Compared with the prior art, the industrial robot teaching device provided by the utility model has the following advantages:

[0049] (1) The utility model discloses a multi-axis robot, a tool quick switching unit, an assembly unit, a feeding unit and a warehouse unit, which can completely demonstrate workpiece carrying, workpiece assembly and workpiece warehousing using robots, so that students have a certain understanding of the working conditions of industrial assembly lines.

[0050] (2) A plurality of replaceable quick-change tools are placed on the tool quick-change platform, different quick-change tools can be selected according to specific teaching needs, and simple reconstruction of the device can realize training and learning in different fields.

[0051] The above-mentioned embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a plurality of modifications and improvements can be made, and the utility model also intends to include these changes and modifications.

Claims

1. An industrial robot teaching device, characterized in that, The utility model relates to a multi-axis robot real training platform, including: A real training platform (1) is hollow inside and has a mounting space; A multi-axis robot (2) is arranged in the mounting space and can move in three-dimensional directions at the end thereof; A tool quick change unit (3) is arranged in the stroke of the multi-axis robot (2) and includes a plurality of groups of quick change tools (32); the end of the multi-axis robot (2) is connected to each group of quick change tools (32) to switch different quick change tools (32); A PLC controller is electrically connected to the multi-axis robot (2) and the tool quick change unit (3).

2. The industrial robot teaching device according to claim 1, characterized in that: The real training platform (1) includes a mounting plate (12) that divides the mounting space into a first space (101) and a second space (102) arranged in an upper-lower manner; the multi-axis robot (2) and the tool quick change unit (3) are mounted in the first space (101); and the PLC controller is mounted in the second space (102).

3. The industrial robot teaching device according to claim 2, characterized in that: The tool quick change unit (3) further includes a tool switching platform (31) mounted on the mounting plate (12) and having a platform surface parallel to the surface of the mounting plate (12); a plurality of work site holes (311) are formed in the platform surface of the tool switching platform (31), and the quick change tools (32) are stored in the work site holes (311).

4. The industrial robot teaching device according to claim 3, characterized in that: The quick change tool (32) includes a connecting plate (321), a female connector (322), and an execution tool (323); the connecting plate (321) covers the work site hole (311) in a direction perpendicular to the platform surface of the tool switching platform (31); the female connector (322) is mounted on the upper surface of the connecting plate (321) and located above the work site hole (311); and the execution tool (323) is mounted on the lower surface of the connecting plate (321) and penetrates the work site hole (311).

5. The industrial robot teaching device according to claim 4, characterized in that: The edges of the work site hole (311) are provided with positioning pins (312) with axes perpendicular to the platform surface of the tool switching platform (31); the connecting plate (321) is located between the positioning pins (312) and has a positioning opening (3211) on the side surface thereof and matched with the positioning pins (312).

6. The industrial robot teaching device according to claim 4, characterized in that: The multi-axis robot (2) includes a mechanical arm (21) and a male connector (23); the male connector (23) is mounted at the end of the mechanical arm (21) and can be connected to the female connector (322).

7. The industrial robot teaching device according to claim 2, characterized in that: The utility model further includes an assembly unit (4) located in the stroke of the multi-axis robot (2); the assembly unit (4) includes an assembly workbench (41), two limiting blocks (42), and a push cylinder (43); the assembly workbench (41) is mounted on the mounting plate (12); one limiting block (42) is connected to the piston rod of the push cylinder (43) and can be close to and / or away from the other limiting block (42) fixedly mounted on the platform surface of the assembly workbench (41); and opposite sides of the two limiting blocks (42) are provided with limiting grooves (420). ​ 8. The industrial robot teaching device according to claim 2, characterized in that: A feeding unit (5) is also included in the stroke of the multi-axis robot (2), the feeding unit (5) includes a bottle cap supply part (51) and a container bottle conveying part (52), the bottle cap supply part (51) and the container bottle conveying part (52) are installed on the mounting plate (12); The bottle cap supply part (51) includes a feeding platform (511), a storage cylinder (512), a pushing rod (513) and a pushing cylinder (514); the feeding platform (511) is parallel to the surface of the mounting plate (12), the storage cylinder (512), the pushing rod (513) and the pushing cylinder (514) are arranged on the feeding platform (511), the bottom of the storage cylinder (512) is provided with a pushing channel communicated with the feeding platform (511), one end of the pushing rod (513) is in contact with the piston rod of the pushing cylinder (514), and the other end of the pushing rod (513) can extend into the bottom of the pushing channel. The container bottle conveying part (52) includes a conveying belt (524) and a container bottle carrier plate (526); the container bottle carrier plate (526) is provided with a mounting groove (5261) for placing a container bottle, and the container bottle carrier plate (526) moves with the conveying belt (524).

9. The industrial robot teaching device according to claim 8, characterized in that: The container bottle conveying part (52) further includes a limiting block (527) located downstream of the conveying belt (524), and the limiting block (527) is provided with a groove (5271) matched with the container bottle carrier plate (526) on the side facing the upstream of the conveying belt (524).

10. The industrial robot teaching device according to claim 2, characterized in that: A warehouse unit (6) is also included in the stroke of the multi-axis robot (2), the warehouse unit (6) includes a material plate (61) and a fixing frame (62), the fixing frame (62) is fixed on the mounting plate (12), the material plate (61) is installed on the fixing frame (62), and the material plate (61) is provided with a mounting part (611) for placing a workpiece on the surface of the material plate (61).

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