Material taking device for automobile parts

Abstract

The utility model discloses a material taking device for automobile parts, which relates to the field of automobile part production and is characterized by comprising a material taking frame, a movable cavity is formed in the material taking frame, a supporting frame is arranged in the movable cavity, a plurality of supporting plates are arranged on two sides of the supporting frame, two material placing blocks are arranged at the tops of the supporting plates, and the material placing blocks are arranged in the movable cavity. The top of each material placing block is used for placing a jig, the two material placing blocks are spaced to form a conveying interval, and one end of each material placing block extends to form an extending block, so that the problems that due to abrasion caused by manufacturing errors or long-term use, the jigs are slightly inclined, and in the clamping process of the two clamping arms, due to the fact that the jigs are inclined, the jigs cannot be clamped easily are solved. The technical problems that the two clamping arms make non-uniform contact with the surface of the jig, the jig shakes in the moving process, shaking of the jig can be transmitted to the automobile parts on the jig, the shaking can cause the automobile parts to slide off from the jig, and the automobile parts are damaged are solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing, and in particular to a material handling device for automotive parts. Background Technology

[0002] When automobile manufacturers process automobile parts, the parts need to be placed in fixtures. This is because automobile parts usually have complex three-dimensional curved surfaces. The fixtures use contour slots to accurately position the automobile parts, preventing deformation caused by their own weight or vibration during transportation. The fixtures are placed in a pick-up rack. When the automobile parts need to be processed, the pick-up device will transport the fixtures from the pick-up rack to the processing position.

[0003] To improve the stability of the jigs stored in the pick-up rack, the pick-up rack is usually equipped with multiple placement plates inside. These placement plates are used to hold the jigs. Since the space below the jigs is occupied by the placement plates, the pick-up device can only grasp the jigs by clamping them with two gripping arms. However, during the grasping process, the gripping arms need to be precisely aligned with the gripping points on both sides of the jig. Due to manufacturing errors or wear caused by long-term use, the jigs may have a slight tilt. During the gripping process of the two gripping arms, due to the tilt of the jigs, the two gripping arms will have uneven contact with the surface of the jigs, causing the jigs to shake during movement. The shaking of the jigs will be transmitted to the automotive parts on it. This shaking will cause the automotive parts to slip off the jigs, resulting in damage to the automotive parts. Utility Model Content

[0004] To solve the aforementioned technical problems, this utility model provides a material handling device for automotive parts. The purpose is to address the issue that due to manufacturing errors or wear caused by long-term use, the fixture may have a slight tilt. During the clamping process of the two clamping arms, the tilt of the fixture causes uneven contact between the two clamping arms and the surface of the fixture, resulting in the fixture shaking during movement. This shaking is transmitted to the automotive parts on it, causing the automotive parts to slip off the fixture and resulting in damage to the automotive parts.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A material handling device for automotive parts includes a material handling rack with an internal movable cavity. A support frame is located inside the movable cavity. Multiple support plates are located on both sides of the support frame. Two material placement blocks are located on the top of each support plate. The top of each material placement block is used to place a fixture. The two material placement blocks are spaced apart to form a conveying interval. An extension block extends from one end of each material placement block. The extension blocks of the two material placement blocks are spaced apart to form a conveying opening. The conveying opening connects to adjacent conveying intervals. A lifting device is located inside the movable cavity. A moving device is located on one side of the lifting device. An extension drive device is located on the top of the moving device. A material handling plate is located on the top of the extension drive device. An extension plate extends from one side of the material handling plate, such that when the material handling plate passes through any of the conveying openings, the extension plate is located in an adjacent conveying interval.

[0007] The fixture is stored in the movable cavity and supported by two material placement blocks on the top of the support plate. When material needs to be picked up, the lifting device, moving device, and extension drive device drive the picking plate, which enters the conveying opening. This causes the extension plate to enter the adjacent conveying interval simultaneously, ensuring that the picking plate and extension plate cover the bottom area of ​​the fixture. At this time, the picking plate and extension plate are driven by the lifting device, and the top of the picking plate and the top of the extension plate contact the bottom of the fixture. The lifting force of the extension plate and the extension plate smoothly lifts the fixture from the material placement blocks. Since the bottom of the fixture faces the conveying interval and the conveying opening, the contact area of ​​the picking plate and the extension plate is maximized, ensuring that the fixture will not tilt or shake during the lifting process. This avoids the uneven force on the fixture caused by the traditional clamping arm gripping from the side, thus improving the stability of the fixture during handling.

[0008] Furthermore, in this application, the top of the material taking plate and the extension plate are provided with a plurality of limiting blocks, and the bottom of the fixture is provided with a plurality of limiting slots, wherein the plurality of limiting blocks are respectively inserted into the plurality of limiting slots.

[0009] The top of the pick-up plate and the extension plate are equipped with multiple limiting blocks, which are used to precisely cooperate with the limiting slots at the bottom of the fixture. This allows the pick-up plate and the extension plate to lift the fixture, forming multiple limiting points to prevent the fixture from shaking during movement and improve the stability of the fixture during movement.

[0010] Furthermore, in this application, the top of the fixture is provided with multiple spacer columns, and the automotive parts are placed on top of the multiple spacer columns.

[0011] The fixture has multiple spaced columns on top to support automotive parts. When the automotive parts are placed on the fixture, the spacing between the columns reduces the contact area between the automotive parts and the fixture. This reduces the contact area when the fixture is shaken, resulting in more friction between the automotive parts and the fixture and causing damage to the bottom of the automotive parts.

[0012] Furthermore, in this application, the top of the spacer column is provided with a positioning pin, and the bottom of the automotive component is provided with multiple positioning slots, and the positioning pins of the multiple spacer columns are respectively inserted into the multiple positioning slots.

[0013] Furthermore, in this application, the top of the material placement block is provided with a placement limiting groove, and the top of the extension block is provided with a limiting extension groove that communicates with the placement limiting groove. The shapes of the placement limiting groove and the limiting extension groove match the edge shape of the fixture.

[0014] Furthermore, in this application, the lifting device includes a lifting motor, which is located at the top of the material handling frame. The shaft end of the lifting motor is provided with a first transmission wheel. A transmission shaft is rotatably connected to the top of the material handling frame. A second transmission wheel is sleeved on the outside of the transmission shaft. A first transmission belt is sleeved on the outside of the first and second transmission wheels. Third transmission wheels are provided at both ends of the transmission shaft. Two fourth transmission wheels are rotatably connected inside the movable cavity. A second transmission belt is sleeved on the third transmission wheel and the adjacent fourth transmission wheel. A traction seat is provided on one side of the second transmission belt. The traction seat is slidably connected to the inside of the movable cavity. The moving device is located on one side of the traction seat.

[0015] Furthermore, in this application, a lifting slider is provided on the other side of the traction seat, and two lifting slide rails are provided inside the movable cavity, with the lifting slider slidingly engaging with the adjacent lifting slide rails.

[0016] Furthermore, in this application, the moving device includes a connecting plate disposed on one side of the traction seat, a connecting main frame disposed on one side of the connecting plate, a moving frame disposed on one side of the connecting main frame, a moving screw rotatably connected to the top of the moving frame, a moving motor disposed on one side of the moving frame, the moving motor driving the moving screw to rotate, a moving nut sleeved on the outside of the moving screw, and the extension driving device disposed on the top of the moving nut.

[0017] Furthermore, in this application, the extension drive device includes a first movable frame disposed on the top of the movable nut, a first movable screw rotatably connected inside the first movable frame, a first movable motor disposed on one side of the first movable frame, the first movable motor driving the first movable screw to rotate, a first movable nut sleeved on the outside of the first movable screw, and the material picking plate disposed on the top of the first movable nut.

[0018] Furthermore, in this application, the extension drive device includes a second movable frame disposed on top of the first movable nut, a second movable screw rotatably connected inside the second movable frame, a second movable motor disposed on one side of the second movable frame, the second movable motor driving the second movable screw to rotate, a second movable nut sleeved on the outside of the second movable screw, and the material picking plate disposed on top of the second movable nut.

[0019] This utility model has the following beneficial effects:

[0020] The fixture is stored in the movable cavity and supported by two material placement blocks on the top of the support plate. When material needs to be picked up, the lifting device, moving device, and extension drive device drive the picking plate, which enters the conveying opening. This causes the extension plate to enter the adjacent conveying interval simultaneously, ensuring that the picking plate and extension plate cover the bottom area of ​​the fixture. At this time, the picking plate and extension plate are driven by the lifting device, and the top of the picking plate and the top of the extension plate contact the bottom of the fixture. The lifting force of the extension plate and the extension plate smoothly lifts the fixture from the material placement blocks. Since the bottom of the fixture faces the conveying interval and the conveying opening, the contact area of ​​the picking plate and the extension plate is maximized, ensuring that the fixture will not tilt or shake during the lifting process. This avoids the uneven force on the fixture caused by the traditional clamping arm gripping from the side, thus improving the stability of the fixture during handling. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the transmission shaft of this utility model.

[0023] Figure 3 This is a structural schematic diagram of the support frame of this utility model.

[0024] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0025] Figure 5 This is a schematic diagram of the structure of the first and second transmission belts of this utility model.

[0026] Figure 6This is a structural schematic diagram of the material receiving plate and extension plate of this utility model.

[0027] Figure 7 This is a schematic diagram of the structure of the spacer column of this utility model.

[0028] Figure 8 This is a schematic diagram of the structure of the second movable frame of this utility model.

[0029] Figure 9 This is a structural schematic diagram of the first movable frame of this utility model.

[0030] Figure 10 This is a structural schematic diagram of the mobile frame of this utility model.

[0031] In the attached figures, the following labels are used:

[0032] 11. Material handling rack; 112. Movable cavity; 113. Support frame; 114. Support plate; 115. Material placement block; 116. Placement limiting slot; 117. Conveying interval; 118. Extension block; 12. Conveying opening; 13. Limiting extension slot; 14. Automotive parts; 15. Positioning slot; 16. Positioning slot; 17. Conveying opening; 18. Limiting extension slot; 19. Automotive parts; 121. Positioning slot; 122. Fixture; 133. Spacer column; 144. Positioning pin; 15. Limiting slot; 16. Material handling plate; 145. Limiting pin; 146. Extension plate; 2. Lifting device; 21. Lifting motor; 216. First transmission wheel; 217. First transmission belt; 218. Transmission shaft; 229. Second transmission wheel; 220. 1. Wheel; 222. Third transmission wheel; 223. Second transmission belt; 224. Traction seat; 225. Lifting slider; 226. Lifting slide rail; 227. Fourth transmission wheel; 3. Moving device; 31. Connecting main frame; 311. Connecting plate; 32. Moving frame; 321. Moving motor; 322. Moving screw; 323. Moving nut; 4. Extension drive device; 41. First movable frame; 411. First movable screw; 412. First movable motor; 413. First movable nut; 42. Second movable frame; 421. Second movable screw; 422. Second movable nut; 423. Second movable motor. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Reference Figures 1-10 In some specific embodiments, the automotive parts picking device includes a picking rack 1. The picking rack 1 has an internal movable cavity 11, and a support frame 111 is located inside the movable cavity 11. Multiple support plates 112 are located on both sides of the support frame 111. Two material placement blocks 113 are located on the top of the support plates 112. The top of each material placement block 113 is used to place a fixture 13. The two material placement blocks 113 are spaced apart to form a conveying interval 115. An extension block 116 extends from one end of each material placement block 113. The extension blocks 116 of 113 form conveying openings 117 at intervals. The conveying openings 117 connect to adjacent conveying intervals 115. The movable cavity 11 is equipped with a lifting device 2. A moving device 3 is provided on one side of the lifting device 2. An extension drive device 4 is provided on the top of the moving device 3. A picking plate 14 is provided on the top of the extension drive device 4. An extension plate 142 extends from one side of the picking plate 14, so that when the picking plate 14 passes through any of the conveying openings 117, the extension plate 142 is located in the adjacent conveying interval 115.

[0037] Through the above technical solution, the fixture 13 is stored in the movable cavity 11 and supported by two material placement blocks 113 on the top of the support plate 112. When material needs to be picked up, the lifting device 2, the moving device 3, and the extension drive device 4 drive the picking plate 14, which enters the conveying opening 117, causing the extension plate 142 to simultaneously enter the adjacent conveying interval 115, ensuring that the picking plate 14 and the extension plate 142 cover the bottom area of ​​the fixture 13. At this time, the picking plate 14 and the extension plate 142 are driven by the lifting device 2, and the picking plate 14... The top of the 4 and the top of the extension plate 142 contact the bottom of the fixture 13. The lifting force of the extension plate 142 and the extension plate 142 smoothly lifts the fixture 13 from the material block 113. Since the bottom of the fixture 13 faces the conveying interval 115 and the conveying opening 117, the contact area between the picking plate 14 and the extension plate 142 is maximized, ensuring that the fixture 13 will not tilt or shake during the lifting process. This avoids the fixture 13 being subjected to uneven force due to the traditional clamping arm gripping from the side of the fixture 13, and improves the stability of the fixture 13 during handling.

[0038] Furthermore, when the automotive parts 12 on the fixture 13 are removed from the outside, the picking plate 14 is driven by the lifting device 2, the moving device 3 and the extension drive device 4. The picking plate 14 and the extension plate 142 carry the fixture 13 through the conveying opening 117 and the conveying interval 115, so that the fixture 13 returns to the top of the two placement blocks 113 for placement, thereby facilitating the recycling of the fixture 13 and improving the recycling efficiency of the fixture 13.

[0039] Reference Figures 5-7 In some specific embodiments, the top of the material taking plate 14 and the extension plate 142 are provided with a plurality of limiting blocks 141, and the bottom of the fixture 13 is provided with a plurality of limiting slots 133, and the plurality of limiting blocks 141 are respectively inserted into the plurality of limiting slots 133.

[0040] Through the above technical solution, the top of the material taking plate 14 and the extension plate 142 are provided with multiple limiting blocks 141, which are used to precisely cooperate with the limiting slots 133 at the bottom of the fixture 13, so that when the material taking plate 14 and the extension plate 142 lift the fixture 13, multiple limiting points are formed to prevent the fixture 13 from shaking during the movement and improve the stability of the fixture 13 during the movement.

[0041] In addition, the shape of the limiting block 141 can be a cone, and the shape of the limiting slot 133 matches the shape of the limiting block 141, so that when the material pick-up plate 14 and the extension plate 142 lift the fixture 13, the limiting block 141 automatically corrects the positional deviation through the shape of the limiting slot 133, ensuring that the fixture 13 is in the predetermined position.

[0042] Reference Figures 5-7In some specific embodiments, the top of the fixture 13 is provided with a plurality of spaced columns 131, and the automotive parts 12 are placed above the plurality of spaced columns 131.

[0043] Through the above technical solution, the top of the fixture 13 is provided with multiple spacer columns 131 for supporting the automotive parts 12. When the automotive parts 12 are placed on the fixture 13, the spacer columns 131 reduce the contact area between the automotive parts 12 and the fixture 13. When the fixture 13 is shaken, the contact area between the fixture 13 and the automotive parts 12 is reduced, resulting in more friction between the automotive parts 12 and the fixture 13, which may cause damage to the bottom of the automotive parts 12.

[0044] Reference Figures 5-7 In some specific embodiments, the top of the spacer column 131 is provided with a positioning pin 132, and the bottom of the automotive component 12 is provided with multiple positioning slots 121. The positioning pins 132 of the multiple spacer columns 131 are respectively inserted into the multiple positioning slots 121.

[0045] With the above technical solution, when the car part 12 is placed on the fixture 13, the positioning pins 132 of the multiple spaced columns 131 are respectively inserted into the multiple positioning slots 121, so that the positioning pins 132 limit the position of the car part 12 during the movement of the fixture 13, thereby preventing the car part 12 from falling off the fixture 13.

[0046] Reference Figures 1-5 In some specific embodiments, the top of the material placement block 113 is provided with a placement limiting groove 114, and the top of the extension block 116 is provided with a limiting extension groove 118 that communicates with the placement limiting groove 114. The shapes of the placement limiting groove 114 and the limiting extension groove 118 match the edge shape of the fixture 13.

[0047] With the above technical solution, when the fixture 13 is placed on the material block 113, the shape of the placement limiting groove 114 and the limiting extension groove 118 matches the edge shape of the fixture 13, so that the two sides of the fixture 13 are limited in the adjacent placement limiting groove 114 and the limiting extension groove 118, thereby increasing the stability of the fixture 13 when it is stored.

[0048] Reference Figures 1-5In some specific embodiments, the lifting device 2 includes a lifting motor 21, which is located on the top of the material picker 1. The lifting motor 21 has a first transmission wheel 211 at its shaft end. A transmission shaft 22 is rotatably connected to the top of the material picker 1. A second transmission wheel 221 is sleeved on the outside of the transmission shaft 22. A first transmission belt 212 is sleeved on the outside of the first transmission wheel 211 and the second transmission wheel 221. A third transmission wheel 222 is located at both ends of the transmission shaft 22. Two fourth transmission wheels 227 are rotatably connected inside the movable cavity 11. A second transmission belt 223 is sleeved on the third transmission wheel 222 and the adjacent fourth transmission wheel 227. A traction seat 224 is located on one side of the second transmission belt 223. The traction seat 224 is slidably connected inside the movable cavity 11. A moving device 3 is located on one side of the traction seat 224.

[0049] With the above technical solution, when the lifting motor 21 is started, the lifting motor 21 drives the first transmission wheel 211 to rotate. The first transmission wheel 211 drives the second transmission wheel 221 to rotate through the first transmission belt 212. The second transmission wheel 221 drives the transmission shaft 22 to rotate. The transmission shaft 22 drives the third transmission wheel 222 to rotate. The third transmission wheel 222 drives the fourth transmission wheel 227 to rotate through the second transmission belt 223. Thus, under the transmission of the second transmission belt 223, the traction seat 224 is driven to slide along the inside of the movable cavity 11 to realize the lifting movement.

[0050] Reference Figures 1-5 In some specific embodiments, a lifting slider 225 is provided on the other side of the traction seat 224, and two lifting slide rails 226 are provided inside the movable cavity 11. The lifting slider 225 slides in cooperation with the adjacent lifting slide rail 226.

[0051] With the above technical solution, when the traction seat 224 slides along the inside of the movable cavity 11, the lifting slider 225 slides in cooperation with the adjacent lifting slide rail 226, so that the traction seat 224 has multiple points of support during the lifting process, preventing tilting during the lifting process.

[0052] Reference Figures 7-10 In some specific embodiments, the moving device 3 includes a connecting plate 311 disposed on one side of the traction seat 224, a connecting main frame 31 disposed on one side of the connecting plate 311, a moving frame 32 disposed on one side of the connecting main frame 31, a moving screw 322 rotatably connected to the top of the moving frame 32, a moving motor 321 disposed on one side of the moving frame 32, the moving motor 321 drives the moving screw 322 to rotate, a moving nut 323 is sleeved on the outside of the moving screw 322, and an extension drive device 4 is disposed on the top of the moving nut 323.

[0053] With the above technical solution, when the moving motor 321 is started, the rotational motion is converted into linear motion through the moving lead screw 322 and the moving nut 323, which drives the extension drive device 4 to move, thereby moving the material picking plate 14 to the position of the conveying opening 117.

[0054] Reference Figures 7-10 In some specific embodiments, the extension drive device 4 includes a first movable frame 41 disposed on the top of the movable nut 323, a first movable screw 411 rotatably connected inside the first movable frame 41, a first movable motor 412 disposed on one side of the first movable frame 41, the first movable motor 412 driving the first movable screw 411 to rotate, a first movable nut 413 sleeved on the outside of the first movable screw 411, and a material picking plate 14 disposed on the top of the first movable nut 413.

[0055] With the above technical solution, when the first movable motor 412 is started, the rotational motion is converted into linear motion through the first movable lead screw 411 and the first movable nut 413, driving the picking plate 14 to move, thereby causing the picking plate 14 to be inserted into the position of the conveying opening 117.

[0056] Reference Figures 7-10 In some specific embodiments, the extension drive device 4 includes a second movable frame 42 disposed on the top of the first movable nut 413. The second movable frame 42 is rotatably connected to a second movable screw 421. A second movable motor 423 is disposed on one side of the second movable frame 42. The second movable motor 423 drives the second movable screw 421 to rotate. A second movable nut 422 is sleeved on the outside of the second movable screw 421. The material picking plate 14 is disposed on the top of the second movable nut 422.

[0057] With the above technical solution, when the second movable motor 423 is started, the rotational motion is converted into linear motion through the second movable lead screw 421 and the second movable nut 422, driving the picking plate 14 to move, thereby driving the extension plate 142 of the picking plate 14 to be inserted into the position of the conveying interval 115.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An automobile parts taking device, comprising a taking frame, an activity cavity is arranged in the taking frame, a supporting frame is arranged in the activity cavity, and a plurality of supporting plates are arranged on both sides of the supporting frame, characterized in that, The top of the support plate is provided with two material placing blocks, the top of the material placing block is used for placing a jig, two conveying intervals are formed by the material placing blocks, the material placing block extends a extension block at one end, the extension blocks of the two material placing blocks are separated to form a conveying opening, the conveying opening is communicated with the adjacent conveying interval, the inside of the movable cavity is provided with a lifting device, one side of the lifting device is provided with a moving device, the top of the moving device is provided with an extension driving device, the top of the extension driving device is provided with a material taking plate, one side of the material taking plate extends an extension plate, so that when the material taking plate passes through any of the conveying openings, the extension plate is located in the adjacent conveying interval.

2. The apparatus of claim 1, wherein, The top of the material taking plate and the extension plate is provided with a plurality of limiting insertion blocks, the bottom of the jig is provided with a plurality of limiting insertion slots, and the plurality of limiting insertion blocks are respectively inserted with the plurality of limiting insertion slots.

3. The apparatus of claim 2, wherein, The top of the jig is provided with a plurality of interval columns, and the automobile parts are placed above the plurality of interval columns.

4. The apparatus of claim 3, wherein, The top of the interval column is provided with a positioning insertion column, and the bottom of the automobile part is provided with a plurality of positioning insertion slots, and the positioning insertion columns of the plurality of interval columns are respectively inserted with the plurality of positioning insertion slots.

5. The apparatus of claim 4, wherein, The top of the material placing block is provided with a placing limiting slot, the top of the extension block is provided with a limiting extension slot communicated with the placing limiting slot, and the shapes of the placing limiting slot and the limiting extension slot are matched with the edge shape of the jig.

6. The apparatus of claim 1, wherein, The lifting device comprises a lifting motor, the lifting motor is arranged on the top of the material taking frame, a first transmission wheel is arranged on the rotating shaft end of the lifting motor, a transmission shaft is rotatably connected to the top of the material taking frame, a second transmission wheel is arranged on the outside of the transmission shaft, a first transmission belt is arranged on the outside of the first transmission wheel and the second transmission wheel, a third transmission wheel is arranged on both ends of the transmission shaft, two fourth transmission wheels are rotatably connected to the inside of the movable cavity, a second transmission belt is arranged on the third transmission wheel and the adjacent fourth transmission wheel, a traction seat is arranged on one side of the second transmission belt, the traction seat is slidably connected to the inside of the movable cavity, and the moving device is arranged on one side of the traction seat.

7. The apparatus of claim 6, wherein, The other side of the traction seat is provided with a lifting sliding block, and the inside of the movable cavity is provided with two lifting sliding rails, and the lifting sliding block is slidably connected with the adjacent lifting sliding rail.

8. The apparatus of claim 6, wherein, The moving device comprises a connecting plate arranged on one side of the traction seat, a connecting main frame is arranged on one side of the connecting plate, a moving frame is arranged on one side of the connecting main frame, a moving screw rod is rotatably connected to the top of the moving frame, a moving motor is arranged on one side of the moving frame, the moving motor drives the moving screw rod to rotate, a moving nut is arranged on the outside of the moving screw rod, and the extension driving device is arranged on the top of the moving nut.

9. The apparatus of claim 8, wherein, The stretching driving device comprises a first movable frame arranged on the top of the moving nut, a first movable screw rod is rotationally connected in the first movable frame, a first movable motor is arranged on one side of the first movable frame, the first movable motor drives the first movable screw rod to rotate, a first movable nut is sleeved on the outside of the first movable screw rod, and the material taking plate is arranged on the top of the first movable nut.

10. The apparatus of claim 9, wherein, The stretching driving device comprises a second movable frame arranged on the top of the first movable nut, a second movable screw rod is rotationally connected in the second movable frame, a second movable motor is arranged on one side of the second movable frame, the second movable motor drives the second movable screw rod to rotate, a second movable nut is sleeved on the outside of the second movable screw rod, and the material taking plate is arranged on the top of the second movable nut.

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