Processing device for refrigeration copper pipe of air conditioner

Abstract

The invention discloses an air conditioner refrigeration copper pipe machining device, and relates to the technical field of air conditioner machining, the air conditioner refrigeration copper pipe machining device comprises a workbench, the workbench is provided with a first clamping conveying assembly and a second clamping conveying assembly, the first clamping conveying assembly comprises a fixing ring mechanism, a synchronous clamping mechanism and a dial wheel mechanism, the fixing ring mechanism is arranged on the workbench, and the synchronous clamping mechanism is arranged on the workbench; the synchronous clamping mechanism is arranged on the fixing ring mechanism, the dial wheel mechanism is arranged on the synchronous clamping mechanism, the second clamping conveying assembly and the first clamping conveying assembly are of the same structure, the workbench is fixedly connected with a first portal frame, the first portal frame is provided with a rotary displacement mechanism, and the rotary displacement mechanism is connected with a reaming roller mechanism. According to the air conditioner refrigeration copper pipe chambering machining device, the synchronous clamping mechanism is arranged, the position of the shifting wheel mechanism can be adjusted, then copper pipes with different diameters are clamped, and the chambering machining efficiency of the air conditioner refrigeration copper pipes is improved.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioner processing, in particular to an air conditioner refrigeration copper tube processing device. Background Art

[0002] ‌Air conditioning refrigeration copper tube‌ is an important component used to transmit refrigerant in the air conditioning system. Its quality and performance directly affect the refrigeration effect and service life of the air conditioner. Air conditioning copper tubes are generally divided into two types: ordinary air conditioning copper tubes and degreased air conditioning copper tubes. When connecting copper tubes, the ends of the copper tubes need to be expanded to facilitate the connection of the copper tubes.

[0003] In the prior art, by setting up a hole expansion mechanism, the hole expansion processing of the air-conditioning and refrigeration copper tube can be conveniently completed, and water spray cooling can be performed on the processing area during the hole expansion processing to prevent damage to the hole expansion drill and the air-conditioning and refrigeration copper tube caused by the high temperature generated by the hole expansion processing as much as possible. By setting up a clamping mechanism, the air-conditioning and refrigeration copper tube can be conveniently clamped and fixed by the clamping mechanism to prevent it from shifting or shaking during the hole expansion processing as much as possible. However, in the prior art, the copper tube cannot be protected during hole expansion, which may cause damage and deformation of the copper tube. Therefore, the hole expansion processing efficiency of the air-conditioning and refrigeration copper tube is low, so the prior art has a large room for improvement. Summary of the invention

[0004] The present invention provides an air-conditioning refrigeration copper tube processing device, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A processing device for air-conditioning refrigeration copper tubes comprises a workbench, on which a first clamping and conveying assembly and a second clamping and conveying assembly are arranged, the first clamping and conveying assembly comprises a fixed ring mechanism, a synchronous clamping mechanism and two dial wheel mechanisms, the fixed ring mechanism is arranged on the workbench, the synchronous clamping mechanism is arranged on the fixed ring mechanism, the dial wheel mechanism is arranged on the synchronous clamping mechanism, the second clamping and conveying assembly has the same structure as the first clamping and conveying assembly, the workbench is fixedly connected to the first gantry, the first gantry is provided with a rotating displacement mechanism, the rotating displacement mechanism is connected to the hole expansion roller mechanism, the rotating displacement mechanism is connected to the feed plate mechanism, and the feed plate mechanism is connected to the inner clamping plate mechanism; the synchronous clamping mechanism is used to adjust the spacing between the two dial wheel mechanisms, the dial wheel mechanism is used to move the copper tube, the rotating displacement mechanism is used to adjust the position state of the hole expansion roller mechanism, the feed plate mechanism is used to drive the inner clamping plate mechanism to feed, and the inner clamping plate mechanism is used to support the inner wall of the copper tube.

[0006] As a preferred technical solution of the present invention, the fixed ring mechanism includes a second gantry fixed on the workbench, the second gantry is fixedly connected to the first mounting plate, the first mounting plate is provided with two, and the first fixed ring is fixedly connected between the two first mounting plates.

[0007] As a preferred technical solution of the present invention, the synchronous clamping mechanism includes a first motor disposed on the first mounting plate. The output shaft of the first motor is fixedly connected to a first gear. The first gear meshes with two racks. The racks are fixedly connected to a connecting frame. The connecting frame is fixedly connected to a sliding rod. The sliding rod passes through the first fixing ring and is slidably connected to the first fixing ring.

[0008] As a preferred technical solution of the present invention, the dial mechanism includes a dial seat fixed on the sliding rod. A second motor is provided on the side of the dial seat. The output shaft of the second motor is fixedly connected to a dial. The dial is rotatably connected to the dial seat. The dial is a spindle-shaped structure with a concave middle part.

[0009] As a preferred technical solution of the present invention, the rotation and displacement mechanism includes a second mounting plate fixed on the first gantry. There are two second mounting plates. A second fixing ring is fixedly connected between the two second mounting plates. The second fixing ring is rotatably connected to a rotating ring. The second mounting plate is fixedly connected to a third motor. The output shaft of the third motor is fixedly connected to a second gear. The second gear meshes with a third gear. The third gear is fixed on the outer side of the rotating ring. A fixing plate is fixedly connected inside the rotating ring. An adjusting groove is provided on the fixing plate. A fourth motor is fixedly connected inside the adjusting groove on the fixing plate. The output shaft of the fourth motor is fixedly connected to a threaded rod. The threaded rod is rotatably connected to the fixing plate. The threaded rod is threadedly connected to an adjusting block. The adjusting block is located in the adjusting groove and is slidably connected to the fixing plate.

[0010] As a preferred technical solution of the present invention, the hole expanding roller mechanism includes a first displacement seat and a second displacement seat fixed on the adjusting block. The first displacement seat is rotatably connected to a rotating rod. The rotating rod is fixedly connected to a rotating plate. The first tapered roller and the second tapered roller are rotatably connected to one side of the rotating plate away from the rotating rod. The second displacement seat is rotatably connected to a first linear motor. One end of the first linear motor away from the second displacement seat is rotatably connected to a third displacement seat. The third displacement seat is fixedly connected to the rotating rod.

[0011] As a preferred technical solution of the present invention, the feed plate mechanism includes a second linear motor fixed on the fixing plate. One end of the second linear motor away from the fixing plate is fixedly connected to a first feed plate. The first feed plate is fixedly connected to a feed rod. The feed rod passes through the fixing plate and is slidably connected to the fixing plate. One end of the feed rod away from the first feed plate is fixedly connected to a second feed plate.

[0012] As a preferred technical solution of the present invention, the inner clamping plate mechanism includes a sleeve fixed on the second feeding plate. There are two clamping plate grooves on the sleeve, and the two clamping plate grooves are symmetrically arranged on the sleeve. The sleeve is rotatably connected to the first rotating shaft. There are two first rotating shafts. The first rotating shaft is rotatably connected to the first folding rod. The first folding rod is rotatably connected to the fourth displacement seat. The fourth displacement seat is fixedly connected to the clamping plate. The clamping plate is fixedly connected to the fifth displacement seat. The fifth displacement seat is rotatably connected to the second folding rod. The second folding rod is rotatably connected to the second rotating shaft. The second rotating shaft and the sleeve are rotatably connected. A third linear motor is fixedly connected inside the sleeve. The third linear motor is fixedly connected to the adjusting plate. The adjusting plate is fixedly connected to two sixth displacement seats. The sixth displacement seat is rotatably connected to the adjusting rod. The adjusting rod is rotatably connected to the seventh displacement seat. The seventh displacement seat is fixed on the second folding rod.

[0013] The present invention has the following beneficial effects: By setting the synchronous clamping mechanism, the position of the dial mechanism can be adjusted, thereby realizing the clamping of copper tubes with different diameters. The dial mechanism can drive the copper tube to be conveyed and fed. By rotating the displacement mechanism, the position of the hole expanding roller mechanism can be adjusted, thereby realizing the hole expanding treatment of the copper tube. The feeding plate mechanism can drive the inner clamping plate mechanism, so as to support the inner wall of the copper tube during hole expanding, avoid damage to the copper tube, and improve the efficiency of hole expanding processing of air-conditioning refrigeration copper tubes. Description of the Drawings

[0014] Figure 1 It is a structural schematic diagram of a first perspective of an air-conditioning refrigeration copper tube processing device.

[0015] Figure 2 It is a structural schematic diagram of a second perspective of an air-conditioning refrigeration copper tube processing device.

[0016] Figure 3 It is a structural schematic diagram of a third perspective of an air-conditioning refrigeration copper tube processing device.

[0017] Figure 4 It is a cross-sectional view of the inner clamping plate mechanism in an air-conditioning refrigeration copper tube processing device.

[0018] In the figure: 1, workbench; 2, first clamping and conveying assembly; 3, second clamping and conveying assembly; 4, fixed ring mechanism; 401, second gantry; 402, first mounting plate; 403, first fixed ring; 5, synchronous clamping mechanism; 501, first motor; 502, first gear; 503, rack; 504, connecting frame; 505, slide bar; 6, dial mechanism; 601, dial seat; 602, second motor; 603, dial; 7, first gantry; 8, rotation and displacement mechanism; 801, second mounting plate; 802, second fixed ring; 803, rotating ring; 804, third motor; 805, second gear; 806, third gear; 807, fixed plate; 808, adjustment slot; 809, fourth motor; 810, threaded rod; 811, adjustment block; 9, hole expanding roller mechanism; 901, first displacement seat; 902, rotating rod; 903, rotating plate; 904, first tapered roller; 905, second tapered roller; 906, second displacement seat; 907, first linear motor; 908, third displacement seat; 10, feed plate mechanism; 1001, second linear motor; 1002, first feed plate; 1003, feed rod; 1004, second feed plate; 11, inner clamping plate mechanism; 1101, sleeve; 1102, clamping plate groove; 1103, first rotating shaft; 1104, first folding rod; 1105, fourth displacement seat; 1106, clamping plate; 1107, fifth displacement seat; 1108, second folding rod; 1109, second rotating shaft; 1110, third linear motor; 1111, adjustment plate; 1112, sixth displacement seat; 1113, adjustment rod; 1114, seventh displacement seat. Detailed implementation manners

[0019] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] Example 1, please refer to Figures 1 - 4, an air-conditioning refrigeration copper tube processing device, including a workbench 1. A first clamping and conveying assembly 2 and a second clamping and conveying assembly 3 are provided on the workbench 1. The first clamping and conveying assembly 2 includes a fixed ring mechanism 4, a synchronous clamping mechanism 5 and two dial mechanisms 6. The fixed ring mechanism 4 is provided on the workbench 1, the synchronous clamping mechanism 5 is provided on the fixed ring mechanism 4, and the dial mechanisms 6 are provided on the synchronous clamping mechanism 5. The second clamping and conveying assembly 3 has the same structure as the first clamping and conveying assembly 2. The workbench 1 is fixedly connected to a first gantry 7. A rotation and displacement mechanism 8 is provided on the first gantry 7. The rotation and displacement mechanism 8 is connected to a reaming roller mechanism 9, the rotation and displacement mechanism 8 is connected to a feed plate mechanism 10, and the feed plate mechanism 10 is connected to an inner clamping plate mechanism 11. The synchronous clamping mechanism 5 is used to adjust the distance between the two dial mechanisms 6. The dial mechanism 6 is used to dial the copper tube. The rotation and displacement mechanism 8 is used to adjust the position state of the reaming roller mechanism 9. The feed plate mechanism 10 is used to drive the inner clamping plate mechanism 11 to feed. The inner clamping plate mechanism 11 is used to support the inner wall of the copper tube.

[0021] The fixed ring mechanism 4 includes a second gantry 401 fixed to the workbench 1. The second gantry 401 is fixedly connected to a first mounting plate 402. There are two first mounting plates 402. A first fixed ring 403 is fixedly connected between the two first mounting plates 402. The synchronous clamping mechanism 5 includes a first motor 501 provided on the first mounting plate 402. The output shaft of the first motor 501 is fixedly connected to a first gear 502. The first gear 502 meshes with two racks 503. The racks 503 are fixedly connected to a connecting frame 504. The connecting frame 504 is fixedly connected to a slide bar 505. The slide bar 505 passes through the first fixed ring 403 and is slidably connected to the first fixed ring 403. The dial mechanism 6 includes a dial seat 601 fixed to the slide bar 505. A second motor 602 is provided on the side of the dial seat 601. The output shaft of the second motor 602 is fixedly connected to a dial 603. The dial 603 is rotatably connected to the dial seat 601. The dial 603 is a middle concave spindle-shaped structure.

[0022] Specifically, when the first motor 501 is turned on, the rotation of the output shaft of the first motor 501 will drive the first gear 502 to rotate. The rotation of the first gear 502 will drive the two racks 503 to move, and then drive the two connecting frames 504 to move synchronously, thereby driving the slide bar 505 to move, causing the dial seat 601 and the dial 603 to move, so that the dial 603 contacts the copper tube. When the second motor 602 is turned on, the rotation of the output shaft of the second motor 602 will drive the dial 603 to rotate. The rotation of the dial 603 will drive the copper tube to move and feed.

[0023] The rotation and displacement mechanism 8 includes a second mounting plate 801 fixed to the first gantry 7. There are two second mounting plates 801. A second fixing ring 802 is fixedly connected between the two second mounting plates 801. The second fixing ring 802 is rotatably connected to a rotating ring 803. The second mounting plate 801 is fixedly connected to a third motor 804. The output shaft of the third motor 804 is fixedly connected to a second gear 805. The second gear 805 meshes with a third gear 806. The third gear 806 is fixed to the outer side of the rotating ring 803. A fixing plate 807 is fixedly connected inside the rotating ring 803. An adjustment groove 808 is provided on the fixing plate 807. A fourth motor 809 is fixedly connected inside the adjustment groove 808 of the fixing plate 807. The output shaft of the fourth motor 809 is fixedly connected to a threaded rod 810. The threaded rod 810 is rotatably connected to the fixing plate 807. The threaded rod 810 is threadedly connected to an adjustment block 811. The adjustment block 811 is located inside the adjustment groove 808. The adjustment block 811 is slidably connected to the fixing plate 807. The hole expanding roller mechanism 9 includes a first displacement seat 901 and a second displacement seat 906 fixed to the adjustment block 811. The first displacement seat 901 is rotatably connected to a rotating rod 902. The rotating rod 902 is fixedly connected to a rotating plate 903. One side of the rotating plate 903 away from the rotating rod 902 is rotatably connected to a first tapered roller 904 and a second tapered roller 905. The second displacement seat 906 is rotatably connected to a first linear motor 907. One end of the first linear motor 907 away from the second displacement seat 906 is rotatably connected to a third displacement seat 908. The third displacement seat 908 is fixedly connected to the rotating rod 902.

[0024] Specifically, turning on the fourth motor 809 can drive the threaded rod 810 to rotate, and then drive the adjustment block 811 to move along the adjustment groove 808, so as to adjust the positions of the first tapered roller 904 and the second tapered roller 905, so that the copper tube wall is placed between the first tapered roller 904 and the second tapered roller 905. At this time, turning on the first linear motor 907 can drive the rotating rod 902 to rotate around the first displacement seat 901, so as to adjust the deflection angle of the first tapered roller 904 and the second tapered roller 905, thereby performing hole expanding treatment on the copper tube.

[0025] Embodiment 2, continue to refer to Figures 1 - 4, in the embodiment of the present invention, the feed plate mechanism 10 includes a second linear motor 1001 fixed to the fixed plate 807. One end of the second linear motor 1001 away from the fixed plate 807 is fixedly connected to the first feed plate 1002. The first feed plate 1002 is fixedly connected to the feed rod 1003. The feed rod 1003 passes through the fixed plate 807, and the feed rod 1003 is slidably connected to the fixed plate 807. One end of the feed rod 1003 away from the first feed plate 1002 is fixedly connected to the second feed plate 1004. The inner clamping plate mechanism 11 includes a sleeve 1101 fixed to the second feed plate 1004. There are two clamping plate grooves 1102 on the sleeve 1101, and the two clamping plate grooves 1102 are symmetrically arranged on the sleeve 1101. The sleeve 1101 is rotatably connected to the first rotating shaft 1103. There are two first rotating shafts 1103. The first rotating shaft 1103 is rotatably connected to the first folding rod 1104. The first folding rod 1104 is rotatably connected to the fourth displacement seat 1105. The fourth displacement seat 1105 is fixedly connected to the clamping plate 1106. The clamping plate 1106 is fixedly connected to the fifth displacement seat 1107. The fifth displacement seat 1107 is rotatably connected to the second folding rod 1108. The second folding rod 1108 is rotatably connected to the second rotating shaft 1109. The second rotating shaft 1109 is rotatably connected to the sleeve 1101. A third linear motor 1110 is fixedly connected inside the sleeve 1101. The third linear motor 1110 is fixedly connected to the adjusting plate 1111. The adjusting plate 1111 is fixedly connected to two sixth displacement seats 1112. The sixth displacement seat 1112 is rotatably connected to the adjusting rod 1113. The adjusting rod 1113 is rotatably connected to the seventh displacement seat 1114. The seventh displacement seat 1114 is fixed to the second folding rod 1108.

[0026] Specifically, when the second linear motor 1001 is turned on, the second linear motor 1001 can drive the first feed plate 1002 to feed. When the first feed plate 1002 feeds, it can drive the feed rod 1003 to move. When the feed rod 1003 moves, it can drive the second feed plate 1004 to feed and move, so as to drive the sleeve 1101 to feed. At this time, when the third linear motor 1110 is turned on, it can drive the adjusting plate 1111 to displace, and then adjust the position state of the adjusting rod 1113. At this time, it can make the second folding rod 1108 rotate around the second rotating shaft 1109, so that the first folding rod 1104 rotates around the first rotating shaft 1103, and then the clamping plate 1106 is unfolded, realizing that the clamping plate 1106 fits on the inner wall of the copper tube to support the copper tube and prevent the copper tube from deforming during reaming.

[0027] In the implementation process of the present invention, first, according to the different diameters of the copper tubes, the synchronous clamping mechanism 5 is activated. Through the synchronous clamping mechanism 5, the distance between the two pulley mechanisms 6 is adjusted. At this time, the copper tube is placed between the pulley mechanisms 6. Activating the pulley mechanism 6 can drive the copper tube to move forward. Activating the feed plate mechanism 10, the feed plate mechanism 10 can drive the inner clamping plate mechanism 11 to feed. Through the inner clamping plate mechanism 11, the inner wall of the copper tube can be supported to prevent the copper tube from deforming during the reaming process. Activating the rotation and displacement mechanism 8 to adjust the position of the reaming roller mechanism 9, so that the reaming roller mechanism 9 is stuck on the edge of the copper tube. At this time, continue to activate the rotation and displacement mechanism 8 to drive the reaming roller mechanism 9 to rotate, so as to realize the reaming process of the copper tube.

[0028] The present invention can adjust the position of the pulley mechanism 6 by setting the synchronous clamping mechanism 5, so as to clamp copper tubes with different diameters. The pulley mechanism 6 can drive the copper tube to be conveyed and fed. The rotation and displacement mechanism 8 can adjust the position of the reaming roller mechanism 9, so as to realize the reaming process of the copper tube. The feed plate mechanism 10 can drive the inner clamping plate mechanism 11 to support the inner wall of the copper tube during reaming, preventing the copper tube from being damaged and improving the efficiency of the reaming process of the air-conditioning refrigeration copper tube.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioning refrigeration copper tube processing device, comprising a workbench, characterized in that: The workbench is provided with a first clamping and conveying assembly and a second clamping and conveying assembly. The first clamping and conveying assembly includes a fixed ring mechanism, a synchronous clamping mechanism and two dial wheel mechanisms. The fixed ring mechanism is arranged on the workbench, the synchronous clamping mechanism is arranged on the fixed ring mechanism, and the dial wheel mechanism is arranged on the synchronous clamping mechanism. The second clamping and conveying assembly has the same structure as the first clamping and conveying assembly. The workbench is fixedly connected to the first gantry. The first gantry is provided with a rotating displacement mechanism. The rotating displacement mechanism is connected to the hole expansion roller mechanism, the rotating displacement mechanism is connected to the feed plate mechanism, and the feed plate mechanism is connected to the inner clamping plate mechanism; the synchronous clamping mechanism is used to adjust the distance between the two dial wheel mechanisms, the dial wheel mechanism is used to move the copper tube, the rotating displacement mechanism is used to adjust the position state of the hole expansion roller mechanism, the feed plate mechanism is used to drive the inner clamping plate mechanism to feed, and the inner clamping plate mechanism is used to support the inner wall of the copper tube.

2. The air conditioning refrigeration copper tube processing device according to claim 1 is characterized in that: The fixed ring mechanism comprises a second gantry fixed on the workbench, the second gantry is fixedly connected to the first mounting plate, two first mounting plates are provided, and the first fixed ring is fixedly connected between the two first mounting plates.

3. The air conditioning refrigeration copper tube processing device according to claim 2 is characterized in that: The synchronous clamping mechanism includes a first motor arranged on a first mounting plate, the output shaft of the first motor is fixedly connected to a first gear, the first gear meshes with two racks, the racks are fixedly connected to a connecting frame, the connecting frame is fixedly connected to a sliding rod, the sliding rod passes through a first fixing ring and is slidably connected to the first fixing ring.

4. The air conditioning refrigeration copper tube processing device according to claim 3 is characterized in that: The dial mechanism includes a dial seat fixed on the slide rod, a second motor is arranged on the side of the dial seat, an output shaft of the second motor is fixedly connected to the dial, the dial and the dial seat are rotatably connected, and the dial is a concave spindle-shaped structure in the middle.

5. The air conditioning refrigeration copper tube processing device according to claim 1, characterized in that: The rotation and displacement mechanism includes a second mounting plate fixed on the first gantry, the second mounting plates are provided with two, a second fixing ring is fixedly connected between the two second mounting plates, the second fixing ring is rotatably connected to the rotating ring, the second mounting plate is fixedly connected to the third motor, the output shaft of the third motor is fixedly connected to the second gear, the second gear meshes with the third gear, the third gear is fixed to the outside of the rotating ring, the rotating ring is fixedly connected to the fixing plate, an adjusting groove is provided on the fixing plate, the fixing plate is fixedly connected to the fourth motor in the adjusting groove, the output shaft of the fourth motor is fixedly connected to a threaded rod, the threaded rod and the fixing plate are rotatably connected, the threaded rod is threadably connected to the adjusting block, the adjusting block is located in the adjusting groove, and the adjusting block and the fixing plate are slidably connected.

6. The air conditioning refrigeration copper tube processing device according to claim 5, characterized in that: The hole expanding roller mechanism includes a first displacement seat and a second displacement seat fixed on the adjusting block, the first displacement seat is rotatably connected to a rotating rod, the rotating rod is fixedly connected to a rotating plate, the rotating plate is rotatably connected to the first conical roller and the second conical roller on a side away from the rotating rod, the second displacement seat is rotatably connected to a first linear motor, the first linear motor is rotatably connected to a third displacement seat at one end away from the second displacement seat, and the third displacement seat is fixedly connected to the rotating rod.

7. The air conditioning refrigeration copper tube processing device according to claim 5, characterized in that: The feed plate mechanism includes a second linear motor fixed on the fixed plate, one end of the second linear motor away from the fixed plate is fixedly connected to the first feed plate, the first feed plate is fixedly connected to the feed rod, the feed rod passes through the fixed plate, the feed rod and the fixed plate are slidably connected, and one end of the feed rod away from the first feed plate is fixedly connected to the second feed plate.

8. The air conditioning refrigeration copper tube processing device according to claim 7, characterized in that: The inner clamping plate mechanism includes a sleeve fixed on the second feed plate, the sleeve is provided with two clamping plate grooves, the two clamping plate grooves are symmetrically arranged on the sleeve, the sleeve is rotatably connected to the first rotating shaft, the first rotating shaft is provided with two, the first rotating shaft is rotatably connected to the first folding rod, the first folding rod is rotatably connected to the fourth displacement seat, the fourth displacement seat is fixedly connected to the clamping plate, the clamping plate is fixedly connected to the fifth displacement seat, the fifth displacement seat is rotatably connected to the second folding rod, the second folding rod is rotatably connected to the second rotating shaft, the second rotating shaft and the sleeve are rotatably connected, the third linear motor is fixedly connected to the sleeve, the third linear motor is fixedly connected to the adjustment plate, the adjustment plate is fixedly connected to two sixth displacement seats, the sixth displacement seat is rotatably connected to the adjustment rod, the adjustment rod is rotatably connected to the seventh displacement seat, and the seventh displacement seat is fixed on the second folding rod.

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