Positioning and welding device for gear motor shell

Abstract

The invention relates to the technical field of gear motors, in particular to a gear motor shell positioning welding device which comprises a base, a welding starting control mechanism is fixedly connected to the right side of the rear side of the base, a welding table is fixedly connected to the top of the left side of the base, and the base comprises a base body. A side plate is fixedly connected to the left side of the top of the base body, a mechanical arm supporting plate is fixedly connected to the rear side of the top of the left side of the side plate, a mechanical arm starting table is fixedly connected to the top of the mechanical arm supporting plate, and a mechanical arm body is fixedly connected to the top of the mechanical arm starting table. By arranging the base, the welding starting control mechanism and the welding table, automatic and intelligent welding of the gear motor shell is achieved, the design of the whole device combines precise mechanical transmission and intelligent control technologies, and the welding efficiency is improved. The welding precision and efficiency are remarkably improved, and the complexity of manual operation is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of reduction motors, and more specifically, to a positioning welding device for a reduction motor housing. Background Art

[0002] A reduction motor is a device that uses the principle of electromagnetic induction to convert electrical energy into mechanical energy. It usually consists of a motor main body and a reduction mechanism. The motor main body is responsible for generating rotational power, and the reduction mechanism converts the high-speed rotation of the motor into the required low-speed and high-torque output through transmission methods such as gears, worm gears, etc. Reduction motors are widely used in various mechanical equipment, such as automated production lines, conveying equipment, packaging machinery, etc., to achieve precise transmission and control.

[0003] According to the patent document: CN118492841A, a welding device for producing an automotive drive motor housing is disclosed, including a welding table. One side of the upper end of the welding table is rotatably provided with a rotating shaft, the upper end of the rotating shaft is fixedly connected with an L-shaped plate, a sliding groove plate is slidably connected with a third electric push rod, the piston end of the third electric push rod is fixedly connected with a welding torch, the welding torch is electrically connected with a power source, and the power source is arranged on the upper end of the welding table. The present invention realizes that after the welding work is completed, the caked welding slag at the weld can be broken and collected, avoiding the situation that the welding slag will reduce the mechanical properties of the weld, resulting in the strength of the weld being affected, and affecting the strength and stability of the entire welding structure; it can coaxially place the drive motor housing and the cover plate, and position the drive motor housing and the cover plate, thereby ensuring the stability during the welding process of the drive motor housing and the cover plate.

[0004] In order to significantly improve the structural strength and rigidity of the reduction motor housing, designers usually set a series of reinforcing ribs on the housing. These reinforcing ribs are tightly connected to the housing main body by welding to ensure that the reinforcing ribs can play their due role, thereby greatly improving the anti-deformation ability of the housing. However, in the actual operation process, when welding the reduction motor housing and the reinforcing ribs, traditional welding methods often rely on manual operation by workers, which makes it difficult to guarantee the accuracy and consistency of each welding. In addition, a large amount of heat generated during the welding process may cause the housing to deform, affecting its structural integrity. Although traditional positioning devices can initially position the outer wall of the housing to a certain extent, this positioning method is not precise enough to completely avoid potential negative impacts on the housing performance and service life. Summary of the Invention

[0005] To overcome the above defects of the prior art, the present invention provides a positioning welding device for a reduction motor housing. The technical problem to be solved by the present invention is that when welding the reduction motor housing and the reinforcing rib, the traditional welding method often relies on manual operation of workers, which makes it difficult to ensure the accuracy and consistency of each welding. In addition, a large amount of heat generated during the welding process may cause deformation of the housing, affecting its structural integrity. Although the traditional positioning device can preliminarily position the outer wall of the housing to a certain extent, this positioning method is not precise enough to completely avoid potential negative impacts on the performance and service life of the housing.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A positioning welding device for a reduction motor housing, comprising a base. The right side of the rear side of the base is fixedly connected with a welding start control mechanism, and the top of the left side of the base is fixedly connected with a welding table;

[0008] The base includes a base body. The left side of the top of the base body is fixedly connected with a side plate. The rear side of the top of the left side of the side plate is fixedly connected with a robotic arm support plate. The top of the robotic arm support plate is fixedly connected with a robotic arm start platform. The top of the robotic arm start platform is fixedly connected with a robotic arm body. A plasma welding head is arranged at the rear side of the top of the robotic arm body;

[0009] The welding start control mechanism includes an L-shaped connecting block. The front side of the L-shaped connecting block is fixedly connected to the right side of the rear side of the base body. The left bottom of the L-shaped connecting block is fixedly connected with a motor. The left top of the L-shaped connecting block is fixedly connected with a rotating vertical rod connecting block;

[0010] The welding table includes a welding control console. A housing positioning mechanism is arranged on the top of the welding control console.

[0011] As a further solution of the present invention: The right top of the side plate is fixedly connected with an L-shaped guide plate. A columnar sliding rod is slidably connected to the inner wall of the top of the L-shaped guide plate. A spring is sleeved on the outer wall of one side of the columnar sliding rod on the right side of the L-shaped guide plate. The right end of the columnar sliding rod is fixedly connected with a resisting block. The right side of the robotic arm start platform is movably connected with a start button. The right side of the start button is aligned with the left end of the columnar sliding rod. The right side of the resisting block is an inclined plane.

[0012] As a further solution of the present invention: a rotating vertical rod is fixedly connected to the output end of the motor, a turntable is fixedly connected to the bottom of the outer wall of the rotating vertical rod, a crawler is sleeved on the outer wall of the turntable, the top of the rotating vertical rod extends to the top of the rotating vertical rod connecting block and is fixedly connected with a top turntable, a columnar rotating block is fixedly connected to the top of the top turntable, an elliptical chute plate is sleeved on the outer wall of the columnar rotating block, the outer wall of the columnar rotating block is movably connected to the inner wall of the elliptical chute plate, a Z-shaped push-pull plate is fixedly connected to the middle of the front side of the elliptical chute plate, a second abutting block is fixedly connected to the front side of the Z-shaped push-pull plate, the left side of the second abutting block is a cut surface with an inclination opposite to that of the right side of the abutting block, the left side of the second abutting block is attached to and slidably connected to the right side of the abutting block, and a Z-shaped push-pull plate slider is fixedly connected to the bottom of the Z-shaped push-pull plate.

[0013] As a further solution of the present invention: a concave block is fixedly connected to the top of the front side of the L-shaped connecting block, a concave guiding plate is fixedly connected to the front side of the concave block, an inverted U-shaped supporting vertical rod is fixedly connected to the front side of the bottom of the concave guiding plate, and the bottom of the inverted U-shaped supporting vertical rod is fixedly connected to the top of the base body.

[0014] As a further solution of the present invention: the outer wall of the Z-shaped push-pull plate is slidably connected to the inner side of the top of the concave block, and the bottom of the outer wall of the Z-shaped push-pull plate slider is slidably connected to the inner side of the top of the concave guiding plate.

[0015] As a further solution of the present invention: the welding control console includes a columnar vertical rotating rod connecting rod, the right side of the columnar vertical rotating rod connecting rod is fixedly connected to the left side of the side plate, a columnar vertical rotating rod is rotatably connected to the top of the columnar vertical rotating rod connecting rod, a control rod is rotatably connected to the side of the top of the columnar vertical rotating rod connecting rod away from the columnar vertical rotating rod, the bottom end of the control rod extends to the bottom of the columnar vertical rotating rod connecting rod and is fixedly connected with a control rod turntable, the outer wall of the control rod turntable is sleeved on the inner wall of the side of the crawler away from the turntable, the top end of the control rod is fixedly connected with a pushing rod, a gap turntable abutting block is fixedly connected to the left side of the top of the pushing rod, and an appropriate position disc is fixedly connected to the right side of the top of the pushing rod.

[0016] As a further solution of the present invention: a gap turntable is fixedly connected to the middle of the outer wall of the columnar vertical rotating rod, gap turntable abutting grooves are annularly arranged on the outer wall of the gap turntable, gap turntable semi-circular grooves are arranged on one side between the plurality of gap turntable abutting grooves on the outer wall of the gap turntable, the inner side of one of the gap turntable semi-circular grooves is attached to the outer wall of the appropriate position disc, and a columnar vertical rotating rod top connecting plate is rotatably connected to the top of the outer wall of the columnar vertical rotating rod, and the right side of the columnar vertical rotating rod top connecting plate is fixedly connected to the left side of the side plate away from the columnar vertical rotating rod connecting rod.

[0017] As a further solution of the present invention: The housing positioning mechanism includes a housing positioning control base, and an inner support assembly is fixedly connected to the middle of the top of the housing positioning control base.

[0018] As a further solution of the present invention: The housing positioning control base includes an overall positioning base turntable, the bottom of the overall positioning base turntable is fixedly connected to the top of a columnar vertical rotating rod, the middle of the top of the overall positioning base turntable is fixedly connected to a bottom tray, an inner gear disk is rotatably connected to the top of the bottom tray, a retractable rack bar sliding groove disk is fixedly connected to the top of the inner gear disk, an inner disk of the retractable rack bar sliding groove is fixedly connected to the middle of one side inside the bottom tray of the overall positioning base turntable, a plurality of gear rotating rods are rotatably connected in a circular array on one side inside the bottom tray and the inner disk of the retractable rack bar sliding groove on the top of the overall positioning base turntable, gears are fixedly connected to the top and bottom of the outer walls of the plurality of gear rotating rods, the outer walls of the bottom plurality of gears are annularly arrayed and meshed with the inner wall of the inner gear disk, a plurality of retractable rack bars are slidably connected in a circular array on the inner sides of the retractable rack bar sliding groove disk and the retractable rack bar sliding groove, one side of the outer walls of the plurality of retractable rack bars is meshed with the outer walls of the gears on the top of the plurality of gear rotating rods, rotating rods are rotatably connected to the inner sides of the tops of the plurality of retractable rack bars, lifting shafts are rotatably connected to the sides of the plurality of rotating rods away from the retractable rack bars, a lifting vertical rod is fixedly connected to the middle of the top of the lifting shaft, retractable blocks are fixedly connected to the outer sides of the plurality of retractable rack bars, retractable vertical plates are fixedly connected to the tops of the plurality of retractable blocks, guide disk connection blocks are fixedly connected in a circular array on the top of the overall positioning base turntable outside the bottom tray, guide disks are fixedly connected to the tops of the plurality of guide disk connection blocks, guide disk sliding grooves penetrating to the bottom are annularly arrayed on the top of the guide disk, the outer walls of the plurality of retractable blocks are slidably connected to the inner walls of the plurality of guide disk sliding grooves opened by the guide disk, a lead screw motor connection plate is fixedly connected to one side of the top of the overall positioning base turntable, a lead screw motor is fixedly connected to the top of the lead screw motor connection plate, a lead screw is fixedly connected to the output end of the lead screw motor, a transmission block is threadedly connected to the outer wall of the lead screw, the bottom of the transmission block is slidably connected to the top of the lead screw motor connection plate, and one side of the transmission block is rotatably connected to the outer wall of one side of the inner gear disk.

[0019] As a further solution of the present invention: The inner support assembly includes a plurality of Z-shaped support vertical rods. The bottoms of the plurality of Z-shaped support vertical rods are fixedly connected in an annular array to the top of the guide disk. Inner connecting crossbars are fixedly connected to the inner sides of the plurality of Z-shaped support vertical rods. Inner support frame guide plates are fixedly connected to the tops of the plurality of Z-shaped support vertical rods. Inner support frame guide plate slots penetrating through to the bottom are formed in an annular array in the top of the inner support frame guide plate. Hexagonal connecting blocks are fixedly connected to the inner sides of the plurality of inner connecting crossbars. Arc-shaped rotating rod hinge blocks are fixedly connected to the outer wall of the hexagonal connecting block in an annular array. Y-shaped rotating rod hinge slots penetrating through to the bottom are formed in an annular array in the top of the plurality of hexagonal connecting blocks. Y-shaped rotating rods are rotatably connected to the inner walls of the plurality of Y-shaped rotating rod hinge slots opened in the hexagonal connecting block. Arc-shaped rotating rods are rotatably connected to the bottoms of the plurality of Y-shaped rotating rods. Lifting round blocks are rotatably connected to the tops of the plurality of Y-shaped rotating rods. The inner sides of the plurality of arc-shaped rotating rods are rotatably connected to the inner sides of the plurality of arc-shaped rotating rod hinge blocks. Expansion and contraction vertical rods are fixedly connected to the tops of the plurality of arc-shaped rotating rods. The inner walls of the hexagonal connecting blocks are slidably connected to the outer walls of the lifting vertical rods. The middle of the bottom of the lifting round block is fixedly connected to the top end of the lifting vertical rod. The outer walls of the bottoms of the plurality of expansion and contraction vertical rods are all slidably connected to the inner sides of the plurality of inner support frame guide plate slots formed in the inner support frame guide plate. Inner support plates are fixedly connected to the outer sides of the plurality of expansion and contraction vertical rods.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention realizes the automatic and intelligent welding of the reduction motor housing by setting up a base, a welding start control mechanism and a welding table. The design of the whole device combines precise mechanical transmission and intelligent control technology, which not only significantly improves the welding precision and efficiency, but also greatly reduces the complexity and labor intensity of manual operation. Through the precise clamping and internal support of the housing positioning mechanism, the stability and accuracy of the housing during the welding process are ensured, effectively avoiding welding deformation and improving the welding quality. At the same time, the automatic rotation of the welding console and the precise welding of the robotic arm realize the multi-sided welding of the reduction motor housing, eliminating the need for frequent manual adjustment of the welding position, further improving the welding efficiency and automation level. The introduction of this device undoubtedly brings a revolutionary breakthrough to the welding process of the reduction motor housing and contributes an important force to the development of industrial automation and intelligence. Description of the Drawings

[0022] Figure 1 is the main three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 is the main three-dimensional separated structural schematic diagram of the present invention;

[0024] Figure 3Schematic perspective view of the base of the present invention;

[0025] Figure 4 Schematic perspective view of the welding start control mechanism of the present invention;

[0026] Figure 5 Schematic perspective exploded view of the welding start control mechanism of the present invention;

[0027] Figure 6 Schematic perspective view of the welding table of the present invention;

[0028] Figure 7 Schematic perspective view of the welding control console of the present invention;

[0029] Figure 8 Schematic perspective view of the housing positioning mechanism of the present invention;

[0030] Figure 9 Schematic perspective exploded view of the housing positioning control base of the present invention;

[0031] Figure 10 Schematic perspective exploded view of the inner support assembly of the present invention.

[0032] In the figure: 1. Base; 11. Base main body; 12. Side plate; 13. Robot arm support plate; 14. L-shaped guide plate; 15. Columnar slide bar; 16. Spring; 17. Block; 18. Robot arm start platform; 19. Start button; 110. Robot arm main body; 111. Plasma arc welding head; 2. Welding start control mechanism; 21. L-shaped connecting block; 22. Motor; 23. Turntable; 24. Crawler; 25. Rotating vertical rod; 26. Rotating vertical rod connecting block; 27. Top turntable; 28. Columnar rotating block; 29. Concave block; 210. Concave guide plate; 211. Inverted U-shaped support vertical rod; 212. Elliptical chute plate; 213. Z-shaped push-pull plate; 214. Z-shaped push-pull plate slider; 215. Second block; 3. Welding table; 31. Welding control console; 311. Columnar vertical rotating rod connecting rod; 312. Columnar vertical rotating rod top connecting plate; 313. Columnar vertical rotating rod; 314. Clearance turntable; 315. Clearance turntable abutment groove; 316. Control rotating rod; 317. Abutting rotating rod; 318. Clearance turntable abutting block; 319. Positioning plate; 3110. Control rotating rod turntable; 3111. Clearance turntable semi-circular groove; 32. Shell positioning mechanism; 321. Shell positioning control base; 3211. Positioning base integral turntable; 3212. Lead screw motor connecting plate; 3213. Lead screw motor; 3214. Lead screw; 3215. Transmission block; 3216. Bottom tray; 3217. Internal gear disk; 3218. Expansion and contraction rack bar chute disk; 3219. Expansion and contraction rack bar chute inner disk; 32110. Gear rotating rod; 32111. Gear; 32112. Expansion and contraction rack bar; 32113. Expansion and contraction block; 32114. Expansion and contraction vertical plate; 32115. Guide disk connecting block; 32116. Rotating rod; 32117. Lifting shaft; 32118. Lifting vertical rod; 32119. Guide disk; 32120. Guide disk chute; 322. Inner support assembly; 3221. Z-shaped support vertical rod; 3222. Inner connecting cross bar; 3223. Inner support frame guide plate; 3224. Inner support frame guide plate groove; 3225. Hexagonal connecting block; 3226. Y-shaped rotating rod hinge groove; 3227. Arc-shaped rotating rod hinge block; 3228. Y-shaped rotating rod; 3229. Lifting round block; 3230. Arc-shaped rotating rod; 3231. Expansion and contraction vertical rod; 3232. Inner support plate. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] As Figure 1-2As shown in the figure, the present invention provides a positioning welding device for a reduction motor housing, which includes a base 1. On the right side at the rear of the base 1, a welding start control mechanism 2 is fixedly connected. On the top of the left side of the base 1, a welding table 3 is fixedly connected;

[0035] The welding start is controlled by the welding start control mechanism 2 to achieve precise positioning welding of the reduction motor housing. A clamping mechanism for fixing the reduction motor housing is provided on the welding table 3 to ensure the stability of the housing during the welding process.

[0036] As Figure 3 shown in the figure, the base 1 includes a base body 11. On the top left side of the base body 11, a side plate 12 is fixedly connected. At the rear of the top left side of the side plate 12, a robotic arm support plate 13 is fixedly connected. On the top of the robotic arm support plate 13, a robotic arm start platform 18 is fixedly connected. On the top of the robotic arm start platform 18, a robotic arm body 110 is fixedly connected. A plasma welding head 111 is arranged at the rear of the top of the robotic arm body 110. On the top right side of the side plate 12, an L-shaped guide plate 14 is fixedly connected. A columnar slide bar 15 is slidably connected to the inner wall of the top of the L-shaped guide plate 14. A spring 16 is sleeved on the outer wall of one side of the columnar slide bar 15 on the right side of the L-shaped guide plate 14. The right end of the columnar slide bar 15 is fixedly connected with a blocking block 17. The right side of the robotic arm start platform 18 is movably connected with a start button 19. The right side of the start button 19 is aligned with the left end of the columnar slide bar 15. The right side of the blocking block 17 is an inclined plane;

[0037] The specific operation process of controlling the welding start through the welding start control mechanism 2 is as follows: When the reinforcing rib is attached to the position on the surface of the reduction motor housing that needs to be welded by adhesion and is fixed on the welding table 3, the abutting block 17 is pushed to the left through mechanical transmission, so that the columnar slide rod 15 compresses the spring 16 and slides along the top inner wall of the L-shaped guide plate 14 until the left side of the columnar slide rod 15 contacts and presses the start button 19. At this time, the main body of the robotic arm 110 starts, driving the plasma arc welding head 111 to perform precise welding on the reduction motor housing. The main body of the robotic arm 110 and the plasma arc welding head 111 are programmed by the staff at the beginning, so that the plasma arc welding head 111 and the main body of the robotic arm 110 automatically shut down after running for a certain period of time. The set time is exactly enough to complete the welding of the reduction motor housing and the reinforcing rib. After the main body of the robotic arm 110 and the plasma arc welding head 111 are started, the spring 16 returns to its original state, pushing the abutting block 17 and the columnar slide rod 15 to reset, and the start button 19 is released, waiting for the next welding. The entire welding process does not require manual start of the welding equipment, which not only reduces the operation steps of the staff, but also avoids poor welding that may be caused by human operation errors, improving the welding efficiency and welding quality. In addition, by automatically triggering the start button through mechanical transmission, it can effectively avoid the waste of resources and equipment loss caused by the device starting when welding is not required. The design of this device fully embodies the concepts of automation and intelligence, providing an efficient and reliable solution for the positioning welding of the reduction motor housing.

[0038] Such as Figure 4-5As shown, the welding start control mechanism 2 includes an L-shaped connecting block 21. The front side of the L-shaped connecting block 21 is fixedly connected to the right side of the rear side of the base body 11. The left bottom of the L-shaped connecting block 21 is fixedly connected with a motor 22. The left top of the L-shaped connecting block 21 is fixedly connected with a rotating vertical rod connecting block 26. The output end of the motor 22 is fixedly connected with a rotating vertical rod 25. The bottom of the outer wall of the rotating vertical rod 25 is fixedly connected with a turntable 23. A crawler 24 is sleeved on the outer wall of the turntable 23. The top end of the rotating vertical rod 25 extends to the top of the rotating vertical rod connecting block 26 and is fixedly connected with a top turntable 27. The top of the top turntable 27 is fixedly connected with a columnar rotating block 28. An elliptical chute plate 212 is sleeved on the outer wall of the columnar rotating block 28. The outer wall of the columnar rotating block 28 is movably connected to the inner wall of the elliptical chute plate 212. The middle of the front side of the elliptical chute plate 212 is fixedly connected with a Z-shaped push-pull plate 213. The front side of the Z-shaped push-pull plate 213 is fixedly connected with a second abutting block 215. The left side of the second abutting block 215 has a cut surface with an inclination opposite to that of the right side of the abutting block 17. The left side of the second abutting block 215 is in contact with and slidably connected to the right side of the abutting block 17. The bottom of the Z-shaped push-pull plate 213 is fixedly connected with a Z-shaped push-pull plate slider 214. The top of the front side of the L-shaped connecting block 21 is fixedly connected with a concave block 29. The front side of the concave block 29 is fixedly connected with a concave guide plate 210. The bottom front side of the concave guide plate 210 is fixedly connected with an inverted U-shaped support vertical rod 211. The bottom of the inverted U-shaped support vertical rod 211 is fixedly connected to the top of the base body 11. The outer wall of the Z-shaped push-pull plate 213 is slidably connected to the inner side of the top of the concave block 29. The bottom of the outer wall of the Z-shaped push-pull plate slider 214 is slidably connected to the inner side of the top of the concave guide plate 210;

[0039] The specific working principle of the welding start control mechanism 2 is as follows: The motor 22 starts to rotate one circle according to the set program, driving the rotating vertical rod 25 to rotate, and then driving the turntable 23 and the crawler 24 to rotate. At this time, the columnar rotating block 28 makes an elliptical motion in the elliptical chute plate 212. Due to the shape characteristics of the elliptical chute plate 212, when the columnar rotating block 28 moves in the elliptical chute plate 212, it can drive the Z-shaped push-pull plate 213 to move back and forth, and then drive the second abutting block 215 to move back and forth. When the second abutting block 215 moves forward, it fits and is slidably connected to the right side of the abutting block 17, pushing the abutting block 17 to move to the left until the left side of the columnar slide bar 15 contacts and presses the start button 19. At this time, the robotic arm main body 110 starts, driving the plasma welding head 111 to perform precise welding on the reduction motor housing. When the welding is completed, the robotic arm main body 110 and the plasma welding head 111 are automatically turned off, waiting for the next welding. The design of the entire welding start control mechanism 2 realizes the automatic control of welding start through the drive of the motor 22, without manual operation. It not only improves the welding efficiency and welding quality, but also avoids the poor welding that may be caused by human operation errors. In addition, by the way of automatically triggering the start button through mechanical transmission, it can effectively avoid the waste of resources and the loss of equipment caused by the start of the device when welding is not required, further reflecting the automation and intelligent concept of the device.

[0040] Such as Figure 6-7As shown, the welding table 3 includes a welding control console 31. A housing positioning mechanism 32 is provided on the top of the welding control console 31. The welding control console 31 includes a columnar vertical rotating rod connecting rod 311. The right side of the columnar vertical rotating rod connecting rod 311 is fixedly connected to the left side of the side plate 12. The top of the columnar vertical rotating rod connecting rod 311 is rotatably connected to a columnar vertical rotating rod 313. One side of the top of the columnar vertical rotating rod connecting rod 311 away from the columnar vertical rotating rod 313 is rotatably connected to a control rod 316. The bottom end of the control rod 316 extends to the bottom of the columnar vertical rotating rod connecting rod 311 and is fixedly connected to a control rod turntable 3110. The outer wall of the control rod turntable 3110 is sleeved on the inner wall of the side of the crawler 24 away from the turntable 23. The top end of the control rod 316 is fixedly connected to a pushing rod 317. The left side of the top of the pushing rod 317 is fixedly connected to a clearance turntable abutting block 318. The right side of the top of the pushing rod 317 is fixedly connected to an adaptor plate 319. The middle part of the outer wall of the columnar vertical rotating rod 313 is fixedly connected to a clearance turntable 314. A clearance turntable abutting groove 315 is annularly arranged on the outer wall of the clearance turntable 314. A clearance turntable semi-circular groove 3111 is arranged on one side of the outer wall of the clearance turntable 314 between multiple clearance turntable abutting grooves 315. The inner side of one of the clearance turntable semi-circular grooves 3111 is in contact with the outer wall of the adaptor plate 319. The top of the outer wall of the columnar vertical rotating rod 313 is rotatably connected to a columnar vertical rotating rod top connecting plate 312. The right side of the columnar vertical rotating rod top connecting plate 312 is fixedly connected to the left side of the side plate 12 on the side away from the columnar vertical rotating rod connecting rod 311;

[0041] When multi-sided welding of the reduction motor housing is required, the motor 22 is started to rotate one circle according to the set program, driving the rotating vertical rod 25 to rotate, and then driving the turntable 23 and the crawler 24 to rotate. At this time, since the inner wall of the other side of the crawler 24 is sleeved with the control rod turntable 3110, the crawler 24 can drive the control rod turntable 3110 and the control rod 316 to rotate when rotating. The rotation of the control rod 316 drives the abutting rod 317 to rotate. When the abutting rod 317 rotates, the clearance turntable abutting block 318 and the positioning disk 319 at its top rotate accordingly. When the clearance turntable abutting block 318 rotates to the position corresponding to the clearance turntable abutting groove 315, the clearance turntable abutting block 318 is snapped into the clearance turntable abutting groove 315, and pushes the clearance turntable 314 and the columnar vertical rotating rod 313 to rotate along the top of the columnar vertical rod connecting rod 311, thereby driving the welding console 31 as a whole to rotate, realizing multi-sided welding of the reduction motor housing. At the same time, the outer wall of the positioning disk 319 fits with the inner wall of the clearance turntable semi-circular groove 3111 when the columnar vertical rotating rod 313 rotates, playing a role in limiting the rotation angle of the columnar vertical rotating rod 313, ensuring that the welding console 31 can accurately rotate to the position where welding is required. When the clearance turntable abutting block 318 rotates to have no contact with the outer wall of the clearance turntable 314, the clearance turntable 314 and the columnar vertical rotating rod 313 remain stationary under the action of gravity, waiting for the next rotation; the design of the entire welding console 31 realizes automatic control of multi-sided welding of the reduction motor housing through the drive of the motor 22 and the transmission of the crawler, without manual adjustment of the welding position by workers, not only improving the welding efficiency and welding quality, but also reducing the labor intensity of workers, further reflecting the automation and intelligent concept of the device.

[0042] Such as Figure 8-10As shown in the figure, the housing positioning mechanism 32 includes a housing positioning control base 321. In the middle of the top of the housing positioning control base 321, an inner support assembly 322 is fixedly connected. The housing positioning control base 321 includes a positioning base integral turntable 3211. The bottom of the positioning base integral turntable 3211 is fixedly connected to the top of the columnar vertical rotating rod 313. In the middle of the top of the positioning base integral turntable 3211, a bottom tray 3216 is fixedly connected. On the top of the bottom tray 3216, an internal gear disk 3217 is rotatably connected. On the top of the internal gear disk 3217, a retractable rack rod chute disk 3218 is fixedly connected. In the middle of one side inside the bottom tray 3216 of the positioning base integral turntable 3211, a retractable rack rod chute inner disk 3219 is fixedly connected. On the top of the positioning base integral turntable 3211, on one side inside the bottom tray 3216 and the retractable rack rod chute inner disk 3219, a plurality of gear rotating rods 32110 are rotatably connected in a circular array. On the top and bottom of the outer walls of the plurality of gear rotating rods 32110, gears 32111 are fixedly connected. The outer walls of the bottom plurality of gears 32111 are meshed with the inner wall of the internal gear disk 3217 in a circular array. Inside the retractable rack rod chute disk 3218 and the retractable rack rod chute inner disk 3219, a plurality of retractable rack rods 32112 are slidably connected in a circular array. On one side of the outer walls of the plurality of retractable rack rods 32112, they are meshed with the outer walls of the gears 32111 on the top of the outer walls of the plurality of gear rotating rods 32110. On the inner sides of the tops of the plurality of retractable rack rods 32112, rotating rods 32116 are rotatably connected. On one side of the plurality of rotating rods 32116 away from the retractable rack rods 32112, a lifting shaft 32117 is rotatably connected. In the middle of the top of the lifting shaft 32117, a lifting vertical rod 32118 is fixedly connected. On the outer sides of the plurality of retractable rack rods 32112, retractable blocks 32113 are fixedly connected. On the tops of the plurality of retractable blocks 32113, retractable vertical plates 32114 are fixedly connected. On the top of the positioning base integral turntable 3211, on the outer side of the bottom tray 3216, guide disk connection blocks 32115 are fixedly connected in a circular array. On the tops of the plurality of guide disk connection blocks 32115, a guide disk 32119 is fixedly connected. On the top of the guide disk 32119, guide disk chutes 32120 penetrating to the bottom are opened in a circular array. The outer walls of the plurality of retractable blocks 32113 are slidably connected to the inner walls of the plurality of guide disk chutes 32120 opened on the guide disk 32119. On one side of the top of the positioning base integral turntable 3211, a lead screw motor connection plate 3212 is fixedly connected. On the top of the lead screw motor connection plate 3212, a lead screw motor 3213 is fixedly connected. The output end of the lead screw motor 3213 is fixedly connected to a lead screw 3214. The outer wall of the lead screw 3214 is threadedly connected to a transmission block 3215. The bottom of the transmission block 3215 is slidably connected to the top of the lead screw motor connection plate 3212. One side of the transmission block 3215 is rotatably connected to one side of the outer wall of the internal gear disk 3217. The inner support assembly 322 includes a plurality of Z-shaped support vertical rods 3221.The bottoms of multiple Z-shaped support vertical rods 3221 are fixedly connected in an annular array to the top of the guide disc 32119. Inner connecting crossbars 3222 are fixedly connected to the inner sides of the multiple Z-shaped support vertical rods 3221. An inner support frame guide plate 3223 is fixedly connected to the tops of the multiple Z-shaped support vertical rods 3221. Inner support frame guide plate slots 3224 penetrating through to the bottom are formed in an annular array at the top of the inner support frame guide plate 3223. A hexagonal connecting block 3225 is fixedly connected to the inner sides of the multiple inner connecting crossbars 3222. Arc-shaped rotating rod hinge blocks 3227 are fixedly connected in an annular array to the outer wall of the hexagonal connecting block 3225. Y-shaped rotating rod hinge slots 3226 penetrating through to the bottom are formed in an annular array at the top of the multiple hexagonal connecting blocks 3225. Y-shaped rotating rods 3228 are rotatably connected to the inner walls of the multiple Y-shaped rotating rod hinge slots 3226 opened in the hexagonal connecting block 3225. Arc-shaped rotating rods 3230 are rotatably connected to the bottoms of the multiple Y-shaped rotating rods 3228. Lifting round blocks 3229 are rotatably connected to the tops of the multiple Y-shaped rotating rods 3228. The inner sides of the multiple arc-shaped rotating rods 3230 are rotatably connected to the inner sides of the multiple arc-shaped rotating rod hinge blocks 3227. Expanding and contracting vertical rods 3231 are fixedly connected to the tops of the multiple arc-shaped rotating rods 3230. The inner wall of the hexagonal connecting block 3225 is slidably connected to the outer wall of the lifting vertical rod 32118. The middle of the bottom of the lifting round block 3229 is fixedly connected to the top end of the lifting vertical rod 32118. The outer walls of the bottoms of the multiple expanding and contracting vertical rods 3231 are all slidably connected to the inner sides of the multiple inner support frame guide plate slots 3224 opened in the inner support frame guide plate 3223. Inner support plates 3232 are fixedly connected to the outer sides of the multiple expanding and contracting vertical rods 3231;

[0043] After the reinforcing ribs are attached to the positions on the surface of the speed reduction motor housing that need to be welded by adhesion, the inner wall of the speed reduction motor housing is sleeved on the outer walls of multiple inner support plates 3232, and the outer wall of the speed reduction motor housing is inside the inner walls of multiple expansion and contraction vertical plates 32114. By starting the lead screw motor 3213, the output end of the lead screw motor 3213 drives the lead screw 3214 to rotate. When the lead screw 3214 rotates, the transmission block 3215 threadedly connected to its outer wall slides on the top of the lead screw motor connecting plate 3212. When the transmission block 3215 slides, it drives the internal gear disk 3217 to rotate. When the internal gear disk 3217 rotates, the gears 32111 at the bottom of the outer walls of multiple gear rotating rods 32110 on its inner wall are engaged, thereby driving multiple gear rotating rods 32110 to rotate. When multiple gear rotating rods 32110 rotate, the gears 32111 at the top of their outer walls are engaged with the outer walls of multiple expansion and contraction rack bars 32112, thereby driving multiple expansion and contraction rack bars 32112 to slide inside the expansion and contraction rack bar chute disk 3218 and the inner disk of the expansion and contraction rack bar chute 3219. When multiple expansion and contraction rack bars 32112 slide, they drive multiple expansion and contraction blocks 32113 to slide on the inner walls of multiple guide disk chutes 32120 opened in the guide disk 32119. At the same time, multiple expansion and contraction blocks 32113 contract or expand on the outer wall of the speed reduction motor housing through the expansion and contraction vertical plates 32114 to adapt to speed reduction motor housings of different sizes, achieving precise positioning of the speed reduction motor housing. At the same time, when multiple expansion and contraction vertical plates 32114 move inward to clamp the outer wall of the speed reduction motor housing, at this time, since the inner sides of the tops of multiple expansion and contraction rack bars 32112 are rotatably connected to the rotating rods 32116, the rotating rods 32116 rotate inward accordingly, driving the lifting shaft 32117 and the lifting vertical rod 32118 to move upward. When the lifting vertical rod 32118 rises, the lifting round block 3229 connected to its top rises accordingly. When the lifting round block 3229 rises, it drives the Y-shaped rotating rod 3228 to rotate on the inner walls of multiple Y-shaped rotating rod hinge slots 3226 opened in the hexagonal connecting block 3225. Since the bottoms of multiple Y-shaped rotating rods 3228 are all rotatably connected to the arc-shaped rotating rods 3230, and the inner sides of the arc-shaped rotating rods 3230 are rotatably connected to the inner sides of the arc-shaped rotating rod hinge blocks 3227, therefore, the arc-shaped rotating rods 3230 rotate as the Y-shaped rotating rods 3228 rotate, driving the expansion and contraction vertical rods 3231 to slide outward inside multiple inner support frame guide plate slots 3224 opened in the inner support frame guide plate 3223, thereby driving the inner support plates 3232 to move outward, so that the outer walls of the inner support plates 3232 are attached to the inner wall of the speed reduction motor housing until they are attached to and tightly abutted against the inner wall of the speed reduction motor housing, achieving internal support for the speed reduction motor housing and preventing the speed reduction motor housing from deforming during the welding process and affecting the welding quality. The design of the entire housing positioning mechanism 32 realizes precise positioning and internal support for the speed reduction motor housing through the drive of the lead screw motor 3213 and the transmission of the gears 32111, without manual adjustment.It not only improves the positioning efficiency and accuracy, but also reduces the labor intensity of the staff, further reflecting the automation and intelligence concepts of the device.

[0044] The working principle of the present invention: First, place the reduction motor housing on the housing positioning mechanism 32. The reduction motor housing is externally clamped and internally supported by the expansion and contraction vertical plates 32114 and the inner support plates 3232 of the housing positioning mechanism 32 to ensure the stability and accuracy of the reduction motor housing during the welding process and avoid deformation of the housing during welding. Then, according to the welding requirements, start the motor 22. The motor 22 starts to rotate one circle according to the set program. The output end of the motor 22 drives the rotating vertical rod 25 to rotate, thereby driving the turntable 23 and the crawler 24 to rotate. Since the inner wall of the other side of the crawler 24 is sleeved with the control rod turntable 3110, the crawler 24 can drive the control rod turntable 3110 and the control rod 316 to rotate when rotating. When the control rod 316 rotates, the abutting rod 317 at its top also rotates accordingly. The gap turntable abutting block 318 and the positioning disk 319 at the top of the abutting rod 317 also rotate accordingly. When the gap turntable abutting block 318 rotates to a position corresponding to the gap turntable abutting groove 315, the gap turntable abutting block 318 snaps into the gap turntable abutting groove 315 and pushes the gap turntable 314 and the columnar vertical rotating rod 313 to rotate along the top of the columnar vertical rod connecting rod 311, thereby driving the welding console 31 to rotate as a whole, realizing multi-sided welding of the reduction motor housing with intermittent rotation. At the same time, the outer wall of the positioning disk 319 fits with the inner wall of the gap turntable semi-circular groove 3111 when the columnar vertical rotating rod 313 rotates, playing a role in limiting the rotation angle of the columnar vertical rotating rod 313 to ensure that the welding console 31 can accurately rotate to the position where welding is required. When the gap turntable abutting block 318 rotates to a position where there is no contact with the outer wall of the gap turntable 314, the gap turntable 314 and the columnar vertical rotating rod 313 remain stationary under the action of gravity, waiting for the next rotation. At the same time, when the motor 22 starts to rotate one circle according to the set program, it drives the rotating vertical rod 25 to rotate, thereby driving the turntable 23 and the crawler 24 to rotate. At this time, the columnar block 28 moves in an elliptical motion in the elliptical chute plate 212. Due to the shape characteristics of the elliptical chute plate 212, when the columnar block 28 moves in the elliptical chute plate 212, it can drive the Z-shaped push-pull plate 213 to perform reciprocating motion back and forth, thereby driving the second abutting block 215 to perform reciprocating motion back and forth. When the second abutting block 215 moves forward, it fits and slides with the right side of the abutting block 17, pushing the abutting block 17 to move left until the left side of the columnar sliding rod 15 contacts and presses the start button 19. At this time, the robotic arm main body 110 starts, driving the plasma arc welding head 111 to precisely weld the reduction motor housing. When the welding is completed, the robotic arm main body 110 and the plasma arc welding head 111 automatically close, waiting for the next welding of the housing surface rotation.

[0045] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A positioning and welding device for a speed reduction motor housing, characterized in that: It includes a base (1), on the right side of the rear side of the base (1) is fixedly connected with a welding start control mechanism (2), and on the top of the left side of the base (1) is fixedly connected with a welding table (3); The base (1) includes a base main body (11), on the top left side of the base main body (11) is fixedly connected with a side plate (12), on the rear side of the top left side of the side plate (12) is fixedly connected with a robotic arm support plate (13), on the top of the robotic arm support plate (13) is fixedly connected with a robotic arm start platform (18), on the top of the robotic arm start platform (18) is fixedly connected with a robotic arm main body (110), and on the rear side of the top of the robotic arm main body (110) is provided with a plasma welding head (111); The welding start control mechanism (2) includes an L-shaped connecting block (21), the front side of the L-shaped connecting block (21) is fixedly connected to the right side of the rear side of the base main body (11), at the bottom left side of the L-shaped connecting block (21) is fixedly connected with a motor (22), and at the top left side of the L-shaped connecting block (21) is fixedly connected with a rotating vertical rod connecting block (26); The welding table (3) includes a welding control console (31), and on the top of the welding control console (31) is provided with a housing positioning mechanism (32).

2. The positioning and welding device for a reduction motor housing according to claim 1, wherein: On the top right side of the side plate (12) is fixedly connected with an L-shaped guide plate (14), the inner wall of the top of the L-shaped guide plate (14) is slidably connected with a columnar sliding rod (15), on the outer wall of one side of the columnar sliding rod (15) on the right side of the L-shaped guide plate (14) is sleeved with a spring (16), the right end of the columnar sliding rod (15) is fixedly connected with a resisting block (17), the right side of the robotic arm start platform (18) is movably connected with a start button (19), the right side of the start button (19) is aligned with the left end of the columnar sliding rod (15), and the right side of the resisting block (17) is an inclined plane.

3. The positioning and welding device for the speed reduction motor housing according to claim 1, wherein: The output end of the motor (22) is fixedly connected with a rotating vertical rod (25), at the bottom of the outer wall of the rotating vertical rod (25) is fixedly connected with a turntable (23), on the outer wall of the turntable (23) is sleeved with a track (24), the top end of the rotating vertical rod (25) extends to the top of the rotating vertical rod connecting block (26) and is fixedly connected with a top turntable (27), on the top of the top turntable (27) is fixedly connected with a columnar rotating block (28), on the outer wall of the columnar rotating block (28) is sleeved with an elliptical chute plate (212), the outer wall of the columnar rotating block (28) is movably connected to the inner wall of the elliptical chute plate (212), at the middle of the front side of the elliptical chute plate (212) is fixedly connected with a Z-shaped push-pull plate (213), on the front side of the Z-shaped push-pull plate (213) is fixedly connected with a second resisting block (215), the left side of the second resisting block (215) is a plane with an inclination opposite to that of the right side of the resisting block (17), the left side of the second resisting block (215) is in contact with and slidably connected to the right side of the resisting block (17), and at the bottom of the Z-shaped push-pull plate (213) is fixedly connected with a Z-shaped push-pull plate slider (214).

4. A positioning and welding device for a speed reduction motor housing according to claim 1, characterized in that: The front top of the L-shaped connecting block (21) is fixedly connected with a concave block (29), the front side of the concave block (29) is fixedly connected with a concave guide plate (210), the front bottom side of the concave guide plate (210) is fixedly connected with an inverted U-shaped support vertical rod (211), and the bottom of the inverted U-shaped support vertical rod (211) is fixedly connected to the top of the base body (11).

5. The positioning and welding device for a speed reduction motor housing according to claim 3, wherein: The outer wall of the Z-shaped push-pull plate (213) is slidably connected to the inner side of the top of the concave block (29), and the bottom of the outer wall of the Z-shaped push-pull plate slider (214) is slidably connected to the inner side of the top of the concave guide plate (210).

6. The positioning and welding device for the housing of a speed reduction motor according to claim 1, wherein: The welding control console (31) includes a columnar vertical rotating rod connecting rod (311). The right side of the columnar vertical rotating rod connecting rod (311) is fixedly connected to the left side of the side plate (12). The top of the columnar vertical rotating rod connecting rod (311) is rotatably connected to a columnar vertical rotating rod (313). The side of the top of the columnar vertical rotating rod connecting rod (311) away from the columnar vertical rotating rod (313) is rotatably connected to a control rod (316). The bottom end of the control rod (316) extends to the bottom of the columnar vertical rotating rod connecting rod (311) and is fixedly connected with a control rod turntable (3110). The outer wall of the control rod turntable (3110) is sleeved on the inner wall of the side of the crawler belt (24) away from the turntable (23). The top end of the control rod (316) is fixedly connected with a pushing rod (317). The left side of the top of the pushing rod (317) is fixedly connected with a clearance turntable abutting block (318). The right side of the top of the pushing rod (317) is fixedly connected with an alignment disk (319).

7. The positioning and welding device for a speed reduction motor housing according to claim 6, characterized in that: The middle part of the outer wall of the columnar vertical rotating rod (313) is fixedly connected with a clearance turntable (314). The outer wall of the clearance turntable (314) is annularly provided with clearance turntable abutting grooves (315). The outer wall of the clearance turntable (314) is provided with clearance turntable semi-circular grooves (3111) on one side between multiple clearance turntable abutting grooves (315). The inner side of one of the clearance turntable semi-circular grooves (3111) is in contact with the outer wall of the alignment disk (319). The top of the outer wall of the columnar vertical rotating rod (313) is rotatably connected with a columnar vertical rotating rod top connecting plate (312). The right side of the columnar vertical rotating rod top connecting plate (312) is fixedly connected to the left side of the side plate (12) away from the columnar vertical rotating rod connecting rod (311).

8. A positioning and welding device for a speed reduction motor housing according to claim 1, characterized in that: The housing positioning mechanism (32) includes a housing positioning control base (321). The middle part of the top of the housing positioning control base (321) is fixedly connected with an inner support assembly (322).

9. A positioning and welding device for a speed reduction motor housing according to claim 8, characterized in that: The housing positioning control base (321) includes a positioning base integral turntable (3211). The bottom of the positioning base integral turntable (3211) is fixedly connected to the top end of a columnar vertical rotating rod (313). In the middle of the top of the positioning base integral turntable (3211), a bottom tray (3216) is fixedly connected. An internal gear disk (3217) is rotatably connected to the top of the bottom tray (3216). A retractable rack rod chute disk (3218) is fixedly connected to the top of the internal gear disk (3217). In the middle of one side inside the bottom tray (3216) of the positioning base integral turntable (3211), a retractable rack rod chute inner disk (3219) is fixedly connected. On the top of the positioning base integral turntable (3211), on one side between the bottom tray (3216) and the inner side of the retractable rack rod chute inner disk (3219), gear rotating rods (32110) are rotatably connected in an annular array. At the top and bottom of the outer walls of multiple gear rotating rods (32110), gears (32111) are fixedly connected. The outer walls of the bottom multiple gears (32111) are meshed with the inner wall of the internal gear disk (3217) in an annular array. A retractable rack rod (32112) is slidably connected in an annular array on the inner sides of the retractable rack rod chute disk (3218) and the retractable rack rod chute inner disk (3219). On one side of the outer walls of multiple retractable rack rods (32112), they are meshed with the outer walls of the gears (32111) at the top of the outer walls of multiple gear rotating rods (32110). On the inner sides of the tops of multiple retractable rack rods (32112), rotating rods (32116) are rotatably connected. On one side of multiple rotating rods (32116) away from the retractable rack rods (32112), a lifting shaft (32117) is rotatably connected. In the middle of the top of the lifting shaft (32117), a lifting vertical rod (32118) is fixedly connected. On the outer sides of multiple retractable rack rods (32112), retractable blocks (32113) are fixedly connected. On the tops of multiple retractable blocks (32113), retractable vertical plates (32114) are fixedly connected. On the top of the positioning base integral turntable (3211), on the outer side of the bottom tray (3216), guide disk connection blocks (32115) are fixedly connected in an annular array. On the tops of multiple guide disk connection blocks (32115), a guide disk (32119) is fixedly connected. On the top of the guide disk (32119), guide disk chutes (32120) penetrating to the bottom are opened in an annular array. The outer walls of multiple retractable blocks (32113) are slidably connected to the inner walls of the multiple guide disk chutes (32120) opened on the guide disk (32119). On one side of the top of the positioning base integral turntable (3211), a lead screw motor connection plate (3212) is fixedly connected. On the top of the lead screw motor connection plate (3212), a lead screw motor (3213) is fixedly connected. The output end of the lead screw motor (3213) is fixedly connected to a lead screw (3214). A transmission block (3215) is threadedly connected to the outer wall of the lead screw (3214).The bottom of the transmission block (3215) is slidably connected to the top of the lead screw motor connecting plate (3212), and one side of the transmission block (3215) is rotatably connected to one side of the outer wall of the internal gear disc (3217).

10. A positioning and welding device for a reduction motor housing according to claim 8, characterized in that: The inner support assembly (322) includes a plurality of Z-shaped support vertical rods (3221). The bottoms of the plurality of Z-shaped support vertical rods (3221) are fixedly connected in an annular array to the top of the guide disk (32119). Inner connecting cross rods (3222) are fixedly connected to the inner sides of the plurality of Z-shaped support vertical rods (3221). An inner support frame guide plate (3223) is fixedly connected to the tops of the plurality of Z-shaped support vertical rods (3221). Inner support frame guide plate slots (3224) penetrating through to the bottom are formed in an annular array at the top of the inner support frame guide plate (3223). A hexagonal connecting block (3225) is fixedly connected to the inner sides of the plurality of inner connecting cross rods (3222). Arc-shaped rotating rod hinge blocks (3227) are fixedly connected in an annular array to the outer wall of the hexagonal connecting block (3225). Y-shaped rotating rod hinge slots (3226) penetrating through to the bottom are formed in an annular array at the top of the plurality of hexagonal connecting blocks (3225). Y-shaped rotating rods (3228) are rotatably connected to the inner walls of the plurality of Y-shaped rotating rod hinge slots (3226) opened in the hexagonal connecting block (3225). Arc-shaped rotating rods (3230) are rotatably connected to the bottoms of the plurality of Y-shaped rotating rods (3228). Lifting round blocks (3229) are rotatably connected to the tops of the plurality of Y-shaped rotating rods (3228). The inner sides of the plurality of arc-shaped rotating rods (3230) are rotatably connected to the inner sides of the plurality of arc-shaped rotating rod hinge blocks (3227). Retracting and expanding vertical rods (3231) are fixedly connected to the tops of the plurality of arc-shaped rotating rods (3230). The inner wall of the hexagonal connecting block (3225) is slidably connected to the outer wall of the lifting vertical rod (32118). The middle of the bottom of the lifting round block (3229) is fixedly connected to the top end of the lifting vertical rod (32118). The outer walls of the bottoms of the plurality of retracting and expanding vertical rods (3231) are all slidably connected to the inner sides of the plurality of inner support frame guide plate slots (3224) opened in the inner support frame guide plate (3223). Inner support plates (3232) are fixedly connected to the outer sides of the plurality of retracting and expanding vertical rods (3231).

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