A deburring device for automobile production
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]在实际工作中,现有技术中由于汽车的各个零部件尺寸形状都不相同,因此在进行打磨时,通常都是一种零部件通过一部与之适配的打磨机器进行打磨,导致会占用大量的设备进行辅助操作,费时费力,同时缺少有效对零部件定位机构,导致打磨时存在晃动,也会影响打磨效率,从而带来诸多不便
[0015]通过设置安装底板、处理平台和支撑柱,通过两个第一辅助定位板进行一次定位处理,也可以用于对汽车零部件进行辅助支撑处理,从而方便后续通过两个第二辅助定位板进行二次定位处理,外接管道用于与外部排放管道连接,外部排放管道与气泵连接,对通过回收管道回收的现场残渣统一清理,通过第一驱动电机运转,带动第一齿轮转动,带动一侧的两个第二齿轮均转动,在连接臂和第二转动杆的限位下,带动两个第二辅助定位板逐步向中间运动,直至达到夹紧效果,辅助后续打磨时设备保持稳定,通过第二驱动电机运转,带动往复丝杆在第二直线模组内部转动,从而带动两个第二滑块向一侧运动,从而对一侧的底部打磨盘进行位置调节,直至对所需位置的汽车零部件进行打磨处理,调节轮的外侧螺纹连接有延伸至固定框内壁的定位插销,通过定位插销对完成调节后的调节轮限位处理,防止出现设备自主复位情况,达到锁定效果,通过支撑底板和第一定位螺栓配合对支撑柱和安装底板加固连接,提高了设备运行时的稳定性,通过第一直线模组运转,可对第二直线模组进行横向位置往复调节,第二直线模组运转,通过第二驱动电机驱动运转,进行竖向位置往复调节,进行往复打磨处理,提高了打磨全面性,打磨时产生的碎屑通过回收腔统一回收至清理回收仓内部,方便人工统一清理。
Smart Images

Figure CN224615908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive processing equipment technology, and in particular to a deburring device for automotive production. Background Technology
[0002] In the automobile production process, each part is produced separately. After all the parts are processed, they are assembled into a complete car. Most of the car parts are made of metal, and they need to go through a series of processes such as melting, shaping, and cutting during processing. Metal is prone to forming burrs during complex processing, which are useless and uncoordinated parts that protrude on the surface. In order to improve the quality of the parts, burrs need to be removed by grinding.
[0003] In practice, existing technologies often require different sizes and shapes for various automotive parts. Therefore, when polishing, each part is typically polished using a single, compatible polishing machine. This results in a large amount of equipment being used for auxiliary operations, which is time-consuming and labor-intensive. Furthermore, the lack of an effective part positioning mechanism leads to shaking during polishing, which also affects polishing efficiency and causes numerous inconveniences.
[0004] Therefore, this utility model provides a burr removal device for automobile production. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a burr removal device for automobile production.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a deburring device for automobile production, including a mounting base plate.
[0007] The top of the mounting base plate is fixedly connected to four fixing rods, and the top of each of the four fixing rods is fixedly connected to a processing platform. A cleaning and recycling bin is installed between the four fixing rods, and the top of the processing platform is provided with a recycling chamber for use with the cleaning and recycling bin.
[0008] Two support columns are installed on the top of the mounting base plate and on one side of the processing platform. A top support plate is fixedly connected to the top of each of the two support columns. A first linear module is installed on the top of the top support plate. A second linear module is slidably connected above the first linear module. A reciprocating lead screw is rotatably connected inside the second linear module. A connecting plate is installed on one side of the second linear module. A fixed side plate is fixedly connected to the outside of the connecting plate. A third drive motor is fixedly connected to the top of the fixed side plate. A rotating shaft located below the fixed side plate is fixedly connected to the output end of the third drive motor. A bottom grinding disc is installed at one bottom end of the rotating shaft. Infrared sensors can be installed at the bottom of the fixed side plate and on one side of the rotating shaft to facilitate remote monitoring and processing during on-site operations.
[0009] The bottom of the processing platform is fixedly connected to two second electric telescopic rods. The output ends of the two second electric telescopic rods are fixedly connected to mounting bases. The interior of each mounting base is rotatably connected to a first auxiliary positioning plate. The outer side of each mounting base is equipped with a second positioning bolt that cooperates with the first auxiliary positioning plate for limiting. The two first auxiliary positioning plates are used for primary positioning processing, and can also be used for auxiliary support processing of automotive parts, thereby facilitating subsequent secondary positioning processing through the two second auxiliary positioning plates.
[0010] In a preferred embodiment, a recycling box is installed on the top of the fixed side plate and on the side of the third drive motor. A recycling pipe extending to the bottom of the fixed side plate is installed on the bottom of the recycling box. An external pipe is fixedly connected to the outside of the recycling box for connection to an external discharge pipe, which is connected to an air pump for unified cleaning of on-site residue collected through the recycling pipe. A first electric telescopic rod is fixedly connected to the top of the mounting base plate and on the other side of the processing platform. A fixed frame is fixedly connected to the output end of the first electric telescopic rod. A bidirectional lead screw is rotatably connected inside the fixed frame. Two symmetrically distributed first sliders are threaded to the outside of the bidirectional lead screw. A mounting box is fixedly connected to the top of each of the two first sliders. A first gear is rotatably connected to the outside of each mounting box. Two second gears are rotatably connected to one side of each first gear. Both gears mesh with the first gear. A connecting arm is fixedly connected to one side of each second gear. A first rotating rod is rotatably connected to one side of each connecting arm. A second auxiliary positioning plate is rotatably connected to the side of each first rotating rod away from the connecting arm. A sponge pad is installed on the side of each of the two second auxiliary positioning plates that are close to each other. A second rotating rod is rotatably connected to both sides of each second auxiliary positioning plate. One side of each second rotating rod is rotatably connected to the mounting box. A first drive motor is installed inside each mounting box. The output end of each first drive motor extends to the outside of the mounting box and is fixedly connected to the corresponding first gear. When the first drive motor is running, it drives the first gear to rotate, which in turn drives the two second gears on one side to rotate. Under the limitation of the connecting arm and the second rotating rod, the two second auxiliary positioning plates are driven to move gradually towards the middle until a clamping effect is achieved, which helps the equipment to remain stable during subsequent grinding.
[0011] In a preferred embodiment, an adjusting wheel is installed on one side of the fixed frame. One end of the adjusting wheel is fixedly connected to one end of a bidirectional lead screw. A positioning pin extending to the inner wall of the fixed frame is threaded onto the outer side of the adjusting wheel. The positioning pin limits the adjustment wheel after adjustment to prevent the device from resetting itself, thus achieving a locking effect. A second drive motor is fixedly connected to one side of the second linear module. The output end of the second drive motor is fixedly connected to one end of a reciprocating lead screw. Two second sliders are threaded onto the outer side of the reciprocating lead screw. One side of one of the second sliders is connected to a connecting plate. The second drive motor rotates, causing the reciprocating lead screw to rotate inside the second linear module, thereby moving the two second sliders to one side. This adjusts the position of the bottom grinding disc on one side until the desired automotive parts are ground.
[0012] In a preferred embodiment, a support base plate is fixedly connected to the bottom of each of the two support columns, and a first positioning bolt extending into the mounting base plate is threaded around the top of each support base plate. The support base plate and the first positioning bolts work together to reinforce the connection between the support column and the mounting base plate, thereby improving the stability of the equipment during operation.
[0013] In a preferred embodiment, a control panel is fixedly connected to one side of one of the support columns. The first drive motor, the first electric telescopic rod, the second drive motor, the third drive motor, and the second electric telescopic rod are all electrically connected to the control panel. The control panel is used to control the operation of the first drive motor, the first electric telescopic rod, the second drive motor, the third drive motor, and the second electric telescopic rod, thereby realizing unified management of the power equipment.
[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0015] By setting up a mounting base plate, processing platform, and support columns, the equipment performs primary positioning using two first auxiliary positioning plates. These plates can also be used for auxiliary support of automotive parts, facilitating subsequent secondary positioning using two second auxiliary positioning plates. An external pipe connects to an external exhaust pipe, which in turn connects to an air pump. Residue collected through the recycling pipe is then uniformly cleaned. The first drive motor rotates, driving the first gear to rotate, which in turn rotates the two second gears on one side. Under the limiting influence of the connecting arm and the second rotating rod, the two second auxiliary positioning plates gradually move towards the center until a clamping effect is achieved, helping to maintain equipment stability during subsequent grinding. The second drive motor rotates, driving the reciprocating screw to rotate inside the second linear module, thereby moving the two second sliders to one side. The movement of the grinding wheel adjusts the position of the bottom grinding disc on one side until the desired automotive parts are ground. The outer thread of the adjusting wheel is connected to a positioning pin extending to the inner wall of the fixed frame. This positioning pin limits the adjustment wheel after adjustment, preventing the equipment from automatically resetting and achieving a locking effect. The support base plate and the mounting base plate are reinforced by the cooperation of the first positioning bolt, improving the stability of the equipment during operation. The operation of the first linear module allows for lateral reciprocating adjustment of the second linear module. The operation of the second linear module, driven by the second drive motor, allows for vertical reciprocating adjustment, performing reciprocating grinding and improving the comprehensiveness of the grinding process. The debris generated during grinding is collected through the recycling chamber and sent to the cleaning and recycling bin for easy manual cleaning. Attached Figure Description
[0016] Figure 1 A schematic diagram of the overall structure of a deburring device for automobile production provided by this utility model. Figure 1 ;
[0017] Figure 2 A schematic diagram of the overall structure of a deburring device for automobile production provided by this utility model. Figure 2 ;
[0018] Figure 3 A schematic diagram of the overall structure of a deburring device for automobile production provided by this utility model. Figure 3 ;
[0019] Figure 4 This utility model provides an accessory for a deburring device used in automobile production. Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;
[0020] Figure 5 This utility model provides an accessory for a deburring device used in automobile production. Figure 1 Enlarged schematic diagram of the structure at point B in the diagram.
[0021] Legend:
[0022] 1. Install the base plate;
[0023] 2. Processing platform; 21. Recycling chamber; 22. Fixing rod; 23. Fixing frame; 24. Bidirectional lead screw; 25. First slider; 26. Adjusting wheel; 27. First drive motor; 28. First electric telescopic rod; 29. Cleaning and recycling bin;
[0024] 3. Support column; 31. Support base plate; 32. First positioning bolt; 33. Top support plate; 34. First linear module;
[0025] 4. Second linear module; 41. Second drive motor; 42. Reciprocating lead screw; 43. Second slider; 44. Connecting plate; 45. Fixed side plate; 46. Third drive motor; 47. Rotating shaft; 48. Bottom grinding disc;
[0026] 5. Recycling box; 51. External pipe; 52. Recycling pipe; 53. Second electric telescopic rod; 54. Mounting base; 55. First auxiliary positioning plate; 56. Second positioning bolt;
[0027] 6. Mounting box; 61. First gear; 62. Second gear; 63. Connecting arm; 64. First rotating rod; 65. Second auxiliary positioning plate; 66. Second rotating rod; 67. Sponge pad. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] like Figures 1-5 As shown, this embodiment provides a technical solution: a burr grinding device for automobile production, including a mounting base plate 1, four fixing rods 22 are fixedly connected to the top of the mounting base plate 1, a processing platform 2 is fixedly connected to the top of each of the four fixing rods 22, a cleaning and recycling bin 29 is installed between the four fixing rods 22, and a recycling chamber 21 is opened on the top of the processing platform 2 to cooperate with the cleaning and recycling bin 29.
[0030] In this solution, two support columns 3 are installed on the top of the base plate 1 and on one side of the processing platform 2. A top support plate 33 is fixedly connected to the top of each support column 3. A first linear module 34 is installed on the top of the top support plate 33. A second linear module 4 is slidably connected above the first linear module 34. A reciprocating screw 42 is rotatably connected inside the second linear module 4. A connecting plate 44 is installed on one side of the second linear module 4. A fixed side plate 45 is fixedly connected to the outside of the connecting plate 44. A third drive motor 46 is fixedly connected to the top of the fixed side plate 45. A rotating shaft 47 located below the fixed side plate 45 is fixedly connected to the output end of the third drive motor 46. A bottom grinding disc 48 is installed at one bottom end of the rotating shaft 47. An infrared sensor can be installed at the bottom of the fixed side plate 45 and on one side of the rotating shaft 47 to facilitate remote monitoring and processing during on-site operations.
[0031] In this solution, two second electric telescopic rods 53 are fixedly connected to the bottom of the processing platform 2. The output ends of the two second electric telescopic rods 53 are fixedly connected to the mounting bases 54. The interior of each mounting base 54 is rotatably connected to a first auxiliary positioning plate 55. The outer side of each mounting base 54 is equipped with a second positioning bolt 56 that cooperates with the first auxiliary positioning plate 55 for limiting. The two first auxiliary positioning plates 55 are used for primary positioning processing, and can also be used for auxiliary support processing of automotive parts, thereby facilitating secondary positioning processing through the two second auxiliary positioning plates 65.
[0032] Going further, such as Figures 1-4As shown: In this solution, a recycling box 5 is installed on the top of the fixed side plate 45 and on one side of the third drive motor 46. A recycling pipe 52 extending to the bottom of the fixed side plate 45 is installed on the bottom of the recycling box 5. An external pipe 51 is fixedly connected to the outside of the recycling box 5. The external pipe 51 is used to connect to an external discharge pipe. The external discharge pipe is connected to an air pump to uniformly clean up the on-site residue collected through the recycling pipe 52.
[0033] Going further, such as Figures 1-5 As shown: In this scheme, a first electric telescopic rod 28 is fixedly connected to the top of the mounting base 1 and to the other side of the processing platform 2. A fixed frame 23 is fixedly connected to the output end of the first electric telescopic rod 28. A bidirectional lead screw 24 is rotatably connected inside the fixed frame 23. Two symmetrically distributed first sliders 25 are threaded to the outer side of the bidirectional lead screw 24. A mounting box 6 is fixedly connected to the top of each of the two first sliders 25. A first gear 61 is rotatably connected to the outer side of each mounting box 6. Two second gears 62 are rotatably connected to one side of each first gear 61. Both second gears 62 are meshed with the first gear 61. A connecting arm 63 is fixedly connected to one side of each second gear 62. A first rotating rod 64 is rotatably connected to one side of each connecting arm 63. The first rotating rod 64 is away from the connecting arm. A second auxiliary positioning plate 65 is rotatably connected to one side of the 63. A sponge pad 67 is installed on the side of the two second auxiliary positioning plates 65 that are close to each other. A second rotating rod 66 is rotatably connected to both sides of the second auxiliary positioning plate 65. One side of the second rotating rod 66 is rotatably connected to the mounting box 6. A first drive motor 27 is installed inside the mounting box 6. The output end of the first drive motor 27 extends to the outside of the mounting box 6 and is fixedly connected to the corresponding first gear 61. When the first drive motor 27 is running, it drives the first gear 61 to rotate, which drives the two second gears 62 on one side to rotate. Under the limit of the connecting arm 63 and the second rotating rod 66, the two second auxiliary positioning plates 65 are driven to move gradually towards the middle until the clamping effect is achieved, which helps the equipment to remain stable during subsequent grinding.
[0034] In this design, an adjusting wheel 26 is installed on one side of the fixed frame 23. One end of the adjusting wheel 26 is fixedly connected to one end of the bidirectional lead screw 24. The outer side of the adjusting wheel 26 is threaded with a positioning pin extending to the inner wall of the fixed frame 23. The positioning pin limits the adjustment wheel 26 after adjustment to prevent the equipment from resetting on its own, thus achieving a locking effect.
[0035] In this scheme, the bottom of each of the two support columns 3 is fixedly connected to a support base plate 31, and the top of the support base plate 31 is threaded with a first positioning bolt 32 extending into the mounting base plate 1. The support base plate 31 and the first positioning bolt 32 work together to reinforce the connection between the support column 3 and the mounting base plate 1, thereby improving the stability of the equipment during operation.
[0036] Going further, such as Figures 1-5 As shown, in this scheme, a second drive motor 41 is fixedly connected to one side of the second linear module 4. The output end of the second drive motor 41 is fixedly connected to one end of the reciprocating lead screw 42. Two second sliders 43 are threadedly connected to the outer side of the reciprocating lead screw 42. One side of one of the second sliders 43 is connected to the connecting plate 44. When the second drive motor 41 is running, it drives the reciprocating lead screw 42 to rotate inside the second linear module 4, thereby driving the two second sliders 43 to move to one side, thereby adjusting the position of the bottom grinding disc 48 on one side until the automotive parts at the required position are ground.
[0037] In this scheme, a control panel is fixedly connected to one side of one of the support columns 3. The first drive motor 27, the first electric telescopic rod 28, the second drive motor 41, the third drive motor 46, and the second electric telescopic rod 53 are all electrically connected to the control panel. The control panel is used to control the operation of the first drive motor 27, the first electric telescopic rod 28, the second drive motor 41, the third drive motor 46, and the second electric telescopic rod 53, thereby realizing unified management of electrical equipment.
[0038] Working principle:
[0039] like Figures 1-5 As shown:
[0040] By setting up a base plate 1, a processing platform 2, and a support column 3, the control panel can be opened during operation. Infrared sensors can be installed at the bottom of the fixed side plate 45 and on one side of the rotating shaft 47 to facilitate remote monitoring during on-site operations. The two first auxiliary positioning plates 55 perform initial positioning and can also be used for auxiliary support of automotive parts, facilitating subsequent secondary positioning via two second auxiliary positioning plates 65. An external pipe 51 connects to an external exhaust pipe, which in turn connects to an air pump. On-site residue collected via the recovery pipe 52 is cleaned up. The first drive motor 27 rotates, driving the first gear 61 to rotate, which in turn drives the two second gears 62 on one side to rotate. Under the limit of the connecting arm 63 and the second rotating rod 66, the two second auxiliary positioning plates 65 gradually move towards the center until a clamping effect is achieved, helping to maintain equipment stability during subsequent grinding. The second drive motor 41 rotates, driving the reciprocating screw 42 to rotate inside the second linear module 4, thereby moving the two second sliders 43 to one side. The position of the bottom grinding disc 48 on one side is adjusted until the desired automotive parts are ground. The control panel controls the operation of the first drive motor 27, the first electric telescopic rod 28, the second drive motor 41, the third drive motor 46, and the second electric telescopic rod 53, realizing unified management of electrical equipment. The outer thread of the adjusting wheel 26 is connected to a positioning pin extending to the inner wall of the fixed frame 23. The positioning pin limits the adjustment wheel 26 after adjustment to prevent the equipment from resetting on its own, achieving a locking effect. The support base plate 31 and the first positioning bolt 32 work together to reinforce the connection between the support column 3 and the mounting base plate 1, improving the stability of the equipment during operation. The second linear module 4 can be adjusted laterally by the operation of the first linear module 34. The second linear module 4 is driven by the second drive motor 41 to adjust the vertical position and perform reciprocating grinding, improving the comprehensiveness of grinding. The debris generated during grinding is uniformly collected into the cleaning and recycling bin 29 through the recycling chamber 21 for convenient manual cleaning.
[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A deburring device for automobile manufacturing, comprising a mounting base plate (1), characterized in that, The top of the mounting base plate (1) is fixedly connected to four fixing rods (22), and the top of each of the four fixing rods (22) is fixedly connected to a processing platform (2). A cleaning and recycling bin (29) is installed between the four fixing rods (22), and a recycling chamber (21) is opened on the top of the processing platform (2) to cooperate with the cleaning and recycling bin (29). Two support columns (3) are installed on the top of the mounting base plate (1) and on one side of the processing platform (2). A top support plate (33) is fixedly connected to the top of each of the two support columns (3). A first linear module (34) is installed on the top of the top support plate (33). A second linear module (4) is slidably connected above the first linear module (34). The second linear module (4) is rotatably connected to a reciprocating lead screw (42). A connecting plate (44) is installed on one side of the second linear module (4). A fixed side plate (45) is fixedly connected to the outside of the connecting plate (44). A third drive motor (46) is fixedly connected to the top of the fixed side plate (45). A rotating shaft (47) located below the fixed side plate (45) is fixedly connected to the output end of the third drive motor (46). A bottom grinding disc (48) is installed at one bottom end of the rotating shaft (47). The bottom of the processing platform (2) is fixedly connected to two second electric telescopic rods (53), and the output ends of the two second electric telescopic rods (53) are fixedly connected to mounting bases (54). The interior of each mounting base (54) is rotatably connected to a first auxiliary positioning plate (55).
2. The burr polishing device for automobile production according to claim 1, characterized by: A recycling box (5) is installed on the top of the fixed side plate (45) and on one side of the third drive motor (46). A recycling pipe (52) extending to the bottom of the recycling box (5) is installed, and an external pipe (51) is fixedly connected to the outside of the recycling box (5).
3. The burr polishing device for automobile production according to claim 1, characterized by: A first electric telescopic rod (28) is fixedly connected to the top of the mounting base plate (1) and to the other side of the processing platform (2). A fixed frame (23) is fixedly connected to the output end of the first electric telescopic rod (28). A bidirectional lead screw (24) is rotatably connected inside the fixed frame (23). Two symmetrically distributed first sliders (25) are threadedly connected to the outer side of the bidirectional lead screw (24).
4. The burr polishing device for automobile production according to claim 3, characterized by: The top of each of the two first sliders (25) is fixedly connected to a mounting box (6), and the outer side of each mounting box (6) is rotatably connected to a first gear (61). Two second gears (62) are rotatably connected to one side of each first gear (61), and the two second gears (62) are meshed with the first gear (61).
5. The burr polishing device for automobile production according to claim 4, characterized by: A connecting arm (63) is fixedly connected to one side of the second gear (62), and a first rotating rod (64) is rotatably connected to one side of the connecting arm (63). A second auxiliary positioning plate (65) is rotatably connected to the side of the first rotating rod (64) away from the connecting arm (63). A sponge pad (67) is installed on the side of the two second auxiliary positioning plates (65) that are close to each other.
6. The burr polishing device for automobile production according to claim 5, characterized by: The second auxiliary positioning plate (65) is rotatably connected to both sides of the second rotating rod (66), and one side of the second rotating rod (66) is rotatably connected to the mounting box (6). The mounting box (6) is equipped with a first drive motor (27), and the output end of the first drive motor (27) extends to the outside of the mounting box (6) and is fixedly connected to the corresponding first gear (61).
7. The burr polishing device for automobile production according to claim 3, characterized by: An adjusting wheel (26) is installed on one side of the fixed frame (23). One end of the adjusting wheel (26) is fixedly connected to one end of the bidirectional lead screw (24). The outer side of the adjusting wheel (26) is threaded with a positioning pin extending to the inner wall of the fixed frame (23).
8. The burr polishing device for automobile production according to claim 7, characterized by: A second drive motor (41) is fixedly connected to one side of the second linear module (4). The output end of the second drive motor (41) is fixedly connected to one end of the reciprocating lead screw (42). Two second sliders (43) are threadedly connected to the outer side of the reciprocating lead screw (42). One side of one of the second sliders (43) is connected to the connecting plate (44).
9. The burr polishing apparatus for automobile production according to claim 1, characterized by: The bottom of each of the two support columns (3) is fixedly connected to a support base plate (31), and the top of the support base plate (31) is threaded around the perimeter with a first positioning bolt (32) extending into the mounting base plate (1).
10. The burr polishing apparatus for automobile production according to claim 6, characterized by: A control panel is fixedly connected to one side of one of the support columns (3), and the first drive motor (27), the first electric telescopic rod (28), the second drive motor (41), the third drive motor (46), and the second electric telescopic rod (53) are all electrically connected to the control panel.