Electric pole reinforcement cage erecting ring welding device

Abstract

The invention relates to an electric pole reinforcement cage erecting ring welding device which comprises a supporting frame body, a steel ring positioning and rotating mechanism, an electric resistance welding mechanism, an iron sheet feeding mechanism, a steel ring temporary storage mechanism and a steel ring transferring mechanism are arranged on the supporting frame body, and the steel ring temporary storage mechanism is used for temporarily storing batches of steel rings; a steel ring is conveyed and hung on a lower electrode of the electric resistance welding mechanism through the steel ring transferring mechanism, the steel ring positioning and rotating mechanism tightly supports the steel ring through a radially-telescopic clamping roller and drives the steel ring to intermittently rotate, meanwhile, the iron sheet feeding mechanism accurately feeds an iron sheet into an upper electrode, the steel ring and the iron sheet are pressed through movement of the lower electrode and then are conducted with the lower electrode, and the electric resistance welding mechanism conducts welding on the steel ring and the iron sheet. And welding of the steel ring and the iron sheet is completed through resistance heat. According to the welding device, the welding efficiency and quality of the erecting ring are effectively improved, the manual operation intensity and the skill dependence are reduced, and the integrated operation of erecting ring welding is achieved.

Description

Technical Field

[0001] This invention belongs to the field of pole reinforcement cage frame vertical ring welding technology, specifically relating to a pole reinforcement cage frame vertical ring welding device. Background Technology

[0002] During the manufacturing process of the steel reinforcement cage of the utility pole, it is often necessary to precisely weld one or more iron sheets onto the outer wall of the annular steel ring to form a support ring. The function of the support ring is to support the stress of part of the prestressed concrete utility pole. In order to ensure that the concrete cover thickness of all the steel bars of the utility pole is consistent, welded iron sheets are used to support the prestressed high-strength steel wires with smaller diameters, and the annular steel ring is used to support the threaded steel wires with larger diameters.

[0003] Currently, such welding operations mostly rely on manual labor: a mold is made, the operator manually arranges the iron sheets in a circle, then uses a pressure plate to fix the sheets in place, and finally steps on a foot switch to press down the upper electrode to contact the lower electrode for welding. This method has the following disadvantages: (1) Low efficiency and high labor costs: The cycle time for manual loading, unloading, positioning and welding is long, which makes it difficult to meet the needs of mass production.

[0004] (2) Poor precision and consistency: The position and angle of the iron sheet placed manually are deviated, resulting in unstable welding quality and low product qualification rate.

[0005] (3) High safety risks: The operator's hands need to frequently enter the welding area, which poses a safety hazard of being burned by high-temperature electrodes or pinched by mechanical parts.

[0006] (4) High labor intensity: Repetitive operations can easily lead to operator fatigue, which further affects product quality and production efficiency.

[0007] Therefore, there is an urgent need for a fully automated device that can automatically feed, precisely position, reliably weld, and automatically unload the frame rings and iron sheets, in order to solve the problems of efficiency, accuracy, safety, and consistency in the existing technologies. Summary of the Invention

[0008] In order to solve the above-mentioned technical problems, the purpose of this invention is to provide a welding device for the steel cage frame of utility poles, which integrates the feeding and welding of steel rings and iron sheets into one unit, realizing the integrated operation of frame ring welding.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A welding device for the upright ring of a utility pole's reinforcing cage, comprising: Support frame; The steel ring positioning and rotating mechanism is located at one end of the support frame and is used to telescopically move the support steel ring and drive the steel ring to rotate intermittently axially. The resistance welding mechanism includes an upper electrode, a lower electrode, and an electrode linear movement module. The lower electrode is mounted on a support frame and is adjacent to a steel ring positioning and rotating mechanism for attaching to the steel ring. The upper electrode is mounted on the electrode linear movement module and is located on the outer periphery of the steel ring positioning and rotating mechanism for carrying iron sheets. The electrode linear movement module is mounted on the support frame for driving the upper electrode to move and communicate with the lower electrode. The iron sheet feeding mechanism is set on the support frame. One end is used to store and release iron sheets, and the other end is used to telescopically move and push the iron sheets into the upper electrode. The steel ring buffer mechanism is connected to the support frame at one end and used to store and release the steel ring at the other end. The steel ring transfer mechanism has one end hinged to the support frame and the other end used to clamp the steel ring. It transfers the steel ring on the steel ring buffer mechanism and suspends it on the lower electrode by rotating around the hinge point.

[0010] Furthermore, the steel ring positioning and rotating mechanism includes an active roller moving module, a positioning and rotating component, and a tensioning roller. At least three active roller moving modules are arranged in a circular array and are all connected to one end of the support frame. Each active roller moving module is provided with the positioning and rotating component, which is used to drive the positioning and rotating component to move radially along the steel ring. The tensioning roller is disposed on the positioning and rotating component and is driven to rotate axially by it. The upper electrode is located between a pair of adjacent active roller moving modules.

[0011] Furthermore, the steel ring positioning and rotating mechanism includes an active roller moving module, a driven roller moving module, a synchronous belt drive assembly, a positioning and rotating assembly, and a tensioning roller. One active roller moving module and at least two driven roller moving modules are arranged in a circular array and are all connected to one end of the support frame. The positioning and rotating assembly is provided on both the active roller moving module and the driven roller moving module. The tensioning roller is provided on the positioning and rotating assembly and is driven to rotate axially by it. The synchronous belt drive assembly connects the active roller moving module and the driven roller moving module and is used to drive the positioning and rotating assembly to move radially along the steel ring. The upper electrode is located between an adjacent pair of driven roller moving modules or between the active roller moving module and the driven roller moving module.

[0012] Furthermore, the iron sheet feeding mechanism includes a vibratory feeder, a material distribution telescopic assembly, and a material pushing telescopic assembly. The vibratory feeder is disposed within the support frame and connected to the material distribution telescopic assembly, and is used to automatically sort the scattered iron sheets and transport them to one end of the material distribution telescopic assembly. The material distribution telescopic assembly is connected to the material pushing telescopic assembly, and is used to push the iron sheets to one end of the material pushing telescopic assembly. The material pushing telescopic assembly is used to push the iron sheets into the upper electrode.

[0013] Furthermore, the steel ring buffer mechanism includes a suspension arm, a stop member, and a pushing component. One end of the suspension arm is connected to the support frame, and the other end is a free end. The stop member is disposed on the suspension arm to stop the suspended steel ring. The pushing component is disposed on the suspension arm and adjacent to the stop member, and is used to push the stopped steel ring to the other end of the suspension arm.

[0014] Furthermore, the steel ring transfer mechanism includes a transfer rotation component, a steel ring clamping component, and a rotating arm. The transfer rotation component is mounted on the support frame, and one end of the rotating arm is connected to the transfer rotation component, while the other end is connected to the steel ring clamping component.

[0015] Furthermore, it also includes a steel ring ejection mechanism and a steel ring lifting mechanism. The steel ring ejection mechanism is disposed on the support frame and one end is adjacent to the lower electrode, and is used to push the steel ring hanging on the lower electrode away from the lower electrode. The steel ring lifting mechanism is disposed at one end of the support frame, and the steel ring positioning and rotating mechanism is disposed on the steel ring lifting mechanism.

[0016] Furthermore, the synchronous belt drive assembly includes an outer synchronous pulley, an inner synchronous pulley, and a synchronous belt. The outer synchronous pulleys are respectively disposed at the outer ends of the active roller moving module and the outer ends of the driven roller moving module. The inner synchronous pulleys are respectively disposed between the inner ends of adjacent active roller moving modules and the inner ends of adjacent driven roller moving modules, as well as between the inner ends of adjacent pairs of driven roller moving modules. The synchronous belt sequentially loops around the outer synchronous pulleys and the inner synchronous pulleys and is connected to both the active roller moving module and the driven roller moving module, or a positioning rotating component, for driving the positioning rotating component to move synchronously.

[0017] Furthermore, the active roller moving module includes an active support base plate and an active linear moving component. The active support base plate is disposed on the support frame, and the active linear moving component is disposed on the active support base plate. The positioning rotation component is slidably connected to the active linear moving component, and the timing belt is connected to one side of the active linear moving component. The driven roller moving module includes a driven support base plate and a driven linear moving component. The driven support base plate is connected to the active support base plate, and the driven linear moving component is disposed on the driven support base plate. The positioning rotation component is slidably connected to the driven linear moving component, and the timing belt is connected to one side of the driven linear moving component.

[0018] Furthermore, the active linear motion component includes a drive motor, a lead screw, an active linear guide rail, and an active slider. The active linear guide rail is disposed on the active support base plate. The two ends of the lead screw are slidably sleeved on the two ends of the active support base plate. The drive motor is disposed at one end of the active support base plate and connected to one end of the lead screw. The active slider is screwed onto the lead screw and slidably connected to the active linear guide rail. The positioning rotation component is disposed on the active slider, and the timing belt is connected to one side of the active slider. The driven linear motion component includes a driven linear guide rail and a driven slider. The driven linear guide rail is disposed on the driven support base plate. The driven slider is slidably connected to the driven linear guide rail. The positioning rotation component is disposed on the driven slider, and the timing belt is connected to one side of the driven slider.

[0019] Because the present invention adopts the above technical solution, it has the following advantages and effects: The present invention provides a welding device for the steel cage of a utility pole. The device realizes the cyclic operation of steel ring transfer, iron sheet feeding and positioning welding, which can replace manual operation and shorten the production cycle to 1 / 3 or even less of the original, meet the high-speed requirements of modern production lines and has high production efficiency.

[0020] The present invention provides a welding device for the vertical ring of the steel cage frame of a utility pole. Combined with the resistance welding process, key parameters such as welding current, time, and pressure can be precisely set and kept highly consistent through the control system. This eliminates quality problems such as weak welds, incomplete welds, and missing welds caused by fatigue and skill differences in manual welding, thus ensuring the product qualification rate.

[0021] The present invention provides a welding device for the upright ring of the steel cage of a utility pole. The operator only needs to perform batch loading and collection of finished products outside the equipment. The main working area is completely separated from the dangerous action area when the equipment is working. The hands do not need to enter the dangerous area inside the equipment, effectively avoiding the risk of workplace accidents such as burns and pinching. Attached Figure Description

[0022] Figure 1 This is an isometric structural schematic diagram of the device of the present invention.

[0023] Figure 2 yes Figure 1 The main view.

[0024] Figure 3 yes Figure 1 Side view.

[0025] Figure 4 yes Figure 1 Top view.

[0026] Figure 5 This is a schematic diagram of the resistance welding mechanism of the device of the present invention in its assembled state.

[0027] Figure 6 This is a schematic diagram of the assembly structure of the steel ring positioning and rotating mechanism, the steel ring unloading mechanism, and the steel ring lifting drive of the device of the present invention.

[0028] Figure 7 This is a schematic diagram of the internal structure of the steel ring positioning and rotating mechanism of the device of the present invention.

[0029] Figure 8 yes Figure 7 The main view.

[0030] Figure 9 yes Figure 7 Side view.

[0031] Figure 10 yes Figure 7 Rear view.

[0032] Figure 11 This is an isometric structural diagram of the iron sheet feeding mechanism of the device of the present invention.

[0033] Figure 12 yes Figure 11 Side view.

[0034] Figure 13 yes Figure 11 Top view.

[0035] Figure 14 This is an isometric structural diagram of the steel ring transfer mechanism of the device of the present invention.

[0036] Figure 15 yes Figure 14 The main view.

[0037] Figure 16 This is an isometric structural diagram of the steel ring buffer mechanism of the device of the present invention.

[0038] Figure 17 yes Figure 16 Top view.

[0039] The attached diagram is labeled as follows: 1-Support frame, 11-Support column, 12-Support box, 111-Upper horizontal support column, 112-Lower platform plate, 113-Vertical support block, 114-Lower horizontal support column, 115-L-shaped bracket, 116-Fixing plate, 2-Steel ring positioning and rotating mechanism, 21-Active roller moving module, 22-Driven roller moving module, 23-Synchronous belt drive assembly, 24-Positioning and rotating assembly, 25-Tensioning roller, 211-Active support base plate, 212-Active vertical support plate Linear movement assembly, 213-Fixed connecting base plate, 214-Limit switch, 215-Active protective cover, 216-Connecting plate, 2141-Trigger plate, 2142-Detector seat, 231-Outer synchronous pulley, 232-Inner synchronous pulley, 233-Synchronous belt, 221-Driven support base plate, 222-Driven linear movement assembly, 223-Driven protective cover, 251-Annular groove, 2121-Drive motor, 2122-Lead screw, 2123-Active linear guide rail, 2124-Active slider, 2 125-Nut, 2221-Driven linear guide, 2222-Driven slider, 3-Resistance welding mechanism, 31-Upper electrode, 32-Lower electrode, 33-Electrode linear movement module, 311-Fixed electrode plate, 312-Clamping electrode plate, 313-Spring, 321-Arc groove, 4-Iron sheet feeding mechanism, 41-Vibrating plate, 42-Distribution telescopic assembly, 43-Pushing telescopic assembly, 44-Conveying guide groove, 45-First displacement adjustment assembly, 46-Support platform, 47-Connecting fixing plate, 5- Steel ring buffer mechanism, 51-suspension arm, 52-stop component, 53-pushing component, 54-third moving adjustment component, 55-connecting shaft, 511-inclined surface, 512-hanging rod, 6-steel ring transfer mechanism, 61-steel ring clamping component, 62-rotating arm, 63-transfer rotation component, 64-second displacement adjustment component, 65-support plate, 611-finger cylinder, 612-clamping finger, 7-steel ring ejection mechanism, 8-steel ring lifting mechanism, 9-standing ring, 91-steel ring, 92-iron sheet. Detailed Implementation

[0040] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative of the essential spirit of the technical solution of the present invention.

[0041] like Figures 1-4 As shown. This invention provides a welding device for the upright ring of a pole reinforcement cage, including a support frame 1, a steel ring positioning and rotating mechanism 2, a resistance welding mechanism 3, an iron sheet feeding mechanism 4, a steel ring buffering mechanism 5, and a steel ring transfer mechanism 6. The steel ring positioning and rotating mechanism 2, the resistance welding mechanism 3, the iron sheet feeding mechanism 4, the steel ring buffering mechanism 5, and the steel ring transfer mechanism 6 are all mounted on the support frame 1 and connected and fixed by the support frame 1. A steel ring positioning and rotating mechanism 2 is located at one end of the front side of the support frame 1. This mechanism supports the steel ring 91 by radially extending and retracting, and also causes the steel ring 91 to rotate intermittently axially. The resistance welding mechanism 3 includes an upper electrode 31, a lower electrode 32, and an electrode linear movement module 33. The lower electrode 32 is located on the support frame 1, inside and adjacent to the steel ring positioning and rotating mechanism 2, and is used to attach to the steel ring 91. The upper electrode 31 is located on the electrode linear movement module 33, outside the steel ring positioning and rotating mechanism 2, and is used to carry the iron sheet 92. The electrode linear movement module 33 is located on the support frame 1 and is used to move the upper electrode 31 towards the lower electrode 32. The electrode linear movement module 33 is positioned opposite to the steel ring positioning and rotating mechanism 2. An iron sheet feeding mechanism 4 is located on the support frame 1. One end is used to store and release the iron sheet 92, and the other end is used to extend and retract to push the iron sheet 92 into the upper electrode 31. One end of the steel ring buffer mechanism 5 is connected to the support frame 1, and the other end is a free end. The steel ring buffer mechanism 5 is used to store and release the steel ring 91. The free end of the steel ring buffer mechanism 5 extends toward the steel ring transfer mechanism 6 and can be docked with the steel ring transfer mechanism 6.

[0042] One end of the steel ring transfer mechanism 6 is hinged to the support frame 1, opposite to the steel ring positioning and rotating mechanism 2. The other end of the steel ring transfer mechanism 6 is used to clamp the steel ring 91. The steel ring transfer mechanism 6 transfers the steel ring 91 released from the steel ring buffer mechanism 5 by rotating around the hinge point and then suspends it on the lower electrode 32. The electrode linear movement module 33 drives the upper electrode 31 and the iron plate 92 to move towards the lower electrode 32, so that the lower electrode 32, the iron plate 92, the steel ring 91 and the upper electrode 31 are connected and conductive. Then, the iron plate 92 and the steel ring 91 are welded by resistance heating.

[0043] This invention involves pre-suspending a steel ring 91 on a steel ring buffer mechanism 5. The buffer mechanism 5 gradually releases the steel ring 91, which is then clamped by a steel ring transfer mechanism 6 and rotated to one side of a steel ring positioning and rotating mechanism 2, where it is attached to the lower electrode 32. The positioning and rotating mechanism 2 then extends and retracts, supporting the steel ring 91 as it detaches from the lower electrode 32 and causes it to rotate intermittently axially. During this rotation, the upper electrode 31 causes an iron sheet 92 to adhere to the outer circumference of the steel ring 91, and through communication with the lower electrode 32, the iron sheet 92 and the steel ring 91 are welded together to form a support ring 9. This invention effectively improves the welding efficiency and quality of the support ring 9, reduces the intensity of manual operation and skill dependence, and achieves integrated welding of the support ring 9.

[0044] Specifically, the support frame 1 includes a support column 11 and a support box 12. The support column 11 and the support box 12 are arranged adjacent to each other. The support column 11 is provided with a base at its bottom. The support box 12 includes an upper box and a lower box. The bottom of the lower box is provided with a caster wheel assembly for moving and positioning the support box 12.

[0045] Resistance welding mechanism 3 and steel ring positioning and rotating mechanism 2 are arranged adjacent to each other at the front end of support column 11. Steel ring transfer mechanism 6 is hinged to one side of support box 12 and is spaced apart from steel ring positioning and rotating mechanism 2. Iron sheet feeding mechanism 4 is arranged inside support box 12 and is spaced apart from steel ring positioning and rotating mechanism 2. At the same time, iron sheet feeding mechanism 4 and steel ring transfer mechanism 6 are staggered vertically. Steel ring buffer mechanism 5 is connected to one side of support box 12 adjacent to iron sheet feeding mechanism 4.

[0046] Furthermore, an upper horizontal support column 111 is provided on the upper front side of the support column 11, and the electrode linear movement module 33 is vertically fixed to the end of the upper horizontal support column 111. The lower telescopic end of the electrode linear movement module 33 is provided with an upper electrode 31. The electrode linear movement module 33 is preferably a telescopic cylinder or a telescopic push rod.

[0047] like Figure 5 As shown. The upper electrode 31 includes a fixed electrode plate 311 and a clamping electrode plate 312. The upper end of the fixed electrode plate 311 is connected to the telescopic end of the electrode linear movement module 33. A step is provided on one side of the lower end of the fixed electrode plate 311. The clamping electrode plate 312 fits against the step side of the fixed electrode plate 311 to form a groove for carrying the iron sheet 92. The groove has an opening on the side facing the iron sheet feeding mechanism 4. A spring 313 is provided between the clamping electrode plate 312 and the fixed electrode plate 311. The spring 313 provides clamping force. The iron sheet feeding mechanism 4 pushes the iron sheet 92 along the opening into the groove and clamps it in place by the clamping electrode plate 312. The upper surface of the lower electrode 32 is provided with an arc groove 321. The steel ring 91 can be hung in the arc groove 321 for positioning.

[0048] Furthermore, to facilitate the detachment of the support ring 91 from the lower electrode 32 after welding, the welding device also includes a steel ring ejection mechanism 7. The steel ring ejection mechanism 7 is located at the end of the support frame 1, with one end adjacent to the lower electrode 32, and is used to push the steel ring 91, which is attached to the lower electrode 32, out of the lower electrode 32. The steel ring ejection mechanism 7 is preferably a telescopic cylinder. After the steel ring 91 and the iron sheet 92 are welded, the steel ring ejection mechanism 7 telescopically pushes the steel ring 91, causing the support ring 9 to detach as a whole. To facilitate the axial rotation of the steel ring 91, a steel ring lifting mechanism 8 is also provided at the end of the support frame 1. The steel ring lifting mechanism 8 is located below the lower electrode 32, and a steel ring positioning and rotating mechanism 2 is mounted on the steel ring lifting mechanism 8. The steel ring lifting mechanism 8 drives the steel ring positioning and rotating mechanism 2 to move up and down. The steel ring lifting mechanism 8 is preferably a linear sliding table.

[0049] Specifically, a lower platform plate 112 is provided on the lower front side of the support column 11, and the lower platform plate 112 and the upper horizontal support column 111 are parallel and spaced apart vertically. The steel ring lifting mechanism 8 is vertically arranged at the end of the lower platform plate 112. The steel ring lifting mechanism 8 drives the steel ring 91 to rise and disengage from the lower electrode 32, so that the steel ring positioning and rotating mechanism 2 can drive the steel ring to rotate axially and change the welding position.

[0050] A vertical support block 113 is also provided at the front end of the drainage platform plate 112. One end of the vertical support block 113 is connected to a lower horizontal support column 114, which extends out of the drainage platform plate 112. An L-shaped bracket 115 is connected to the lower horizontal support column 114, with one end of the L-shaped bracket 115 extending towards the steel ring positioning and rotating mechanism 2. The lower electrode 32 is located at the upper front end of the L-shaped bracket 115, and the steel ring ejection mechanism 7 is located at the upper rear end of the L-shaped bracket 115, adjacent to the lower electrode 32. The steel ring lifting mechanism 8 is connected to the end of the drainage platform plate 112 via a fixing plate 116 and is located below the vertical support block 113.

[0051] like Figures 6-10 As shown. Further, the steel ring positioning and rotating mechanism 2 includes an active roller moving module 21, a driven roller moving module 22, a synchronous belt drive assembly 23, a positioning and rotating assembly 24, and a tensioning roller 25. One active roller moving module 21 and at least two driven roller moving modules 22 are arranged in a circular array and are all connected to the steel ring lifting mechanism 8 at the front end of the support frame 1. The active roller moving module 21 and the driven roller moving module 22 are each equipped with a positioning and rotating assembly 24. The tensioning roller 25 is mounted on the positioning and rotating assembly 24 and is driven to rotate axially by it. The active roller moving module 21 is connected to the driven roller moving module 22 via the synchronous belt drive assembly 23, which drives the positioning and rotating assembly 24 to move synchronously along the radial direction of the steel ring 91. The lower electrode 32 is located between an adjacent pair of driven roller moving modules 22, or between the active roller moving module 21 and the driven roller moving module 22.

[0052] Specifically, in this invention, an active roller moving module 21 and two driven roller moving modules 22 are arranged in a radially distributed array around the circumference. The active roller moving module 21 is vertically arranged, and the two driven roller moving modules 22 are arranged opposite each other and located above the active roller moving module 21. One end of each of the two driven roller moving modules 22 is respectively connected to the upper end of the active roller moving module 21, forming a radially distributed array. The lower electrode 32 is located between the connected inner ends of the pair of driven roller moving modules 22, and the lower electrode 32 is vertically opposite to the active roller moving module 21. The bottom of the active roller moving module 21 is connected to the steel ring lifting mechanism 8. The synchronous belt drive assembly 23 connects the active roller moving module 21 and the driven roller moving module 22 to realize the synchronous movement of the positioning rotating assembly 24. When the active roller moving module 21 drives the positioning rotating assembly 24 on it to move, it simultaneously drives the synchronous belt drive assembly 23 to move. The synchronous belt drive assembly 23 drives the positioning rotating assembly 24 on the driven roller moving module 22 to move radially synchronously.

[0053] The positioning and rotating assembly 24 is preferably a rotary slide or a rotary motor. The output end of the positioning and rotating assembly 24 is connected to a clamping roller 25. The clamping roller 25 has an annular groove 251 on its outer circumference. The cross-section of the annular groove 251 is arc-shaped, allowing it to fit against the steel ring 91 for positioning. The annular groove 251 and the steel ring 91 are driven to rotate by mutual friction. The three clamping rollers 25 are arranged in a circumferential array, ensuring that the annular groove 251 and the arc-shaped groove 321 on the lower electrode 32 are on the same vertical plane, guaranteeing the vertical attachment of the steel ring 91. When the positioning and rotating assembly 24 drives the clamping rollers 25 to rotate axially, the three clamping rollers 25 rotate synchronously, causing the steel ring 91 to rotate axially. During welding of the upper electrode 31 and the lower electrode 32, the clamping roller 25 is in its initial position, offset by 90 degrees from the upper electrode 31 and the lower electrode 32, thus not interfering with the movement and welding of the upper electrode 31.

[0054] Furthermore, the active roller moving module 21 includes an active support base plate 211 and an active linear moving component 212. The active support base plate 211 is mounted on the steel ring lifting mechanism 8 of the support frame 1, and the active linear moving component 212 is mounted on the active support base plate 211. A positioning rotation component 24 is slidably connected to the linear moving component 212, and a synchronous belt drive component 23 is connected to one side of the active linear moving component 212. The driven roller moving module 22 includes a driven support base plate 221 and a driven linear moving component 222. A pair of driven support base plates 221 are connected to the active support base plate 211. The driven linear moving component 222 is mounted on the driven support base plate 221, and a positioning rotation component 24 is slidably connected to the driven linear moving component 222. A synchronous belt drive component 23 is connected to one side of the driven linear moving component 222.

[0055] Specifically, the active roller moving module 21 also includes a fixed connecting base plate 213, a limit switch 214, and an active protective cover 215. The fixed connecting base plate 213 is connected to the steel ring lifting mechanism 8. The active support base plate 211 is set on the fixed connecting base plate 213. The positioning rotation component 24 is slidably connected to the active linear displacement component 212. The limit switch 214 is set on the fixed connecting base plate 213 and located on one side of the active linear displacement component 212 to control the moving distance of the positioning rotation component 24. The active protective cover 215 is set on the active linear displacement component 212 and encloses the active linear displacement component 212, the positioning rotation component 24, and the limit switch 214. The tensioning roller 25 on the positioning rotation component 24 extends out of the active protective cover 215.

[0056] The driven roller moving module 22 also includes a driven protective cover 223. The driven linear displacement assembly 222 is provided with the driven protective cover 223. The positioning rotation assembly 24 is slidably connected to the driven linear displacement assembly 222. The clamping roller 25 on the positioning rotation assembly 24 of the driven linear displacement assembly 222 extends out of the driven protective cover 223. The ends of a pair of driven support base plates 221 and the active support base plate 211 are connected to the fixed connection base plate 213. The included angle between each pair of driven support base plates 221 and active support base plates 211 is 60 degrees.

[0057] Furthermore, the synchronous belt drive assembly 23 includes an outer synchronous pulley 231, an inner synchronous pulley 232, and a synchronous belt 233. The outer synchronous pulley 231 is respectively disposed at the outer end of the active roller moving module 21 and the outer end of the driven roller moving module 22. The inner synchronous pulley 232 is respectively disposed between the inner ends of adjacent active roller moving modules 21 and the inner ends of driven roller moving modules 22, and between the inner ends of adjacent pairs of driven roller moving modules 22. The synchronous belt 233 sequentially loops around the outer synchronous pulley 231 and the inner synchronous pulley 232 and is connected to the active roller moving module 21 and the driven roller moving module 22, or the positioning rotating assembly 24, for driving the positioning rotating assembly 24 to move synchronously.

[0058] Specifically, the outer synchronous pulleys 231 are slidably connected to the outer end centers of the active support base plate 211 and the driven support base plate 221, respectively. Inner synchronous pulleys 232 are arranged between adjacent gaps at the inner ends of the active support base plate 211 and the driven support base plate 221. The inner synchronous pulleys 232 are slidably connected to the fixed connection base plate 213. The center line connecting the three inner synchronous pulleys 232 forms an inner equilateral triangle, and the center line connecting the three outer synchronous pulleys 231 forms an outer triangle. The inner equilateral triangle and the outer triangle are nested within each other. The synchronous belt 233 is wound between the inner synchronous pulleys 232 and the outer synchronous pulleys 231 to form a star-shaped loop. The synchronous belt 233 drives the three positioning rotation components 24 to move synchronously by connecting the active roller moving module 21 and the driven roller moving module 22, or by directly connecting to the positioning rotation component 24.

[0059] Furthermore, the active linear motion component 212 includes a drive motor 2121, a lead screw 2122, an active linear guide rail 2123, and an active slider 2124. The active linear guide rail 2123 is mounted on the active support base plate 211. The two ends of the lead screw 2122 are slidably sleeved on the two ends of the active support base plate 211. The drive motor 2121 is mounted on one end of the active support base plate 211 and connected to one end of the lead screw 2122. The active slider 2124 is screwed onto the lead screw 2122 and slidably connected to the active linear guide rail 2123. A positioning rotation component 24 is mounted on the active slider 2124, and a synchronous belt 233 is connected to one side of the active slider 2124. The driven linear motion component 222 includes a driven linear guide rail 2221 and a driven slider 2222. The driven linear guide rail 2221 is mounted on the driven support base plate 221. The driven slider 2222 is slidably connected to the driven linear guide rail 2221. A positioning rotation component 24 is mounted on the driven slider 2222. A synchronous belt 233 is connected to one side of the driven slider 2222.

[0060] Specifically, the active slider 2124 has a nut 2125, which is screwed onto the lead screw 2122. A connecting plate 216 is provided on one side of both the active slider 2124 and the driven slider 2222. A synchronous belt 233 is located on both sides of the outer periphery of the active linear guide 2123 and the driven linear guide 2221, respectively. The connecting plate 216 is connected to the synchronous belt 233. The limit switch 214 includes a sensor, a trigger plate 2141, and a probe seat 2142. The trigger plate 2141 is provided on one side of the connecting plate 216. A pair of spaced probe seats 2142 are provided on the fixed connecting base plate 213, and a sensor is provided on each probe seat 2142. When the trigger plate 2141 moves to the sensor, a trigger signal controls the drive motor 2121.

[0061] As a preferred embodiment, another structural form of the steel ring positioning and rotating mechanism 2 of the present invention is provided. The synchronous belt drive assembly 23 is not required; instead, the positioning and rotating assembly 24 is moved synchronously by the synchronous operation of three active roller moving modules 21. In this case, the steel ring positioning and rotating mechanism 2 includes active roller moving modules 21, positioning and rotating assembly 24, and tensioning rollers 25. At least three active roller moving modules 21 are arranged in a circular array and are all connected to one end of the support frame 1. One of the active roller moving modules 21 is vertically arranged, and the upper electrode 31 is located between one pair of active roller moving modules 21, and is vertically opposite to the vertically arranged active roller moving module 21. Each active roller moving module 21 is provided with a positioning and rotating assembly 24, which drives the positioning and rotating assembly 24 to move synchronously along the radial direction of the steel ring 91. The tensioning roller 25 is arranged on the positioning and rotating assembly 24 and is driven by it to rotate axially.

[0062] The active roller moving module 21 includes an active support base plate 211 and an active linear moving component 212. The active linear moving component 212 is mounted on the active support base plate 211, and a positioning rotating component 24 is slidably connected to the linear moving component 212. Three active support base plates 211 are circumferentially distributed and connected at one end, with the bottom of one of the active support plates 211 connected to the steel ring lifting mechanism 8. The synchronous movement of the linear moving component 212 drives the synchronous movement of the rotating component 24.

[0063] like Figures 11-13 As shown. Further, the iron sheet feeding mechanism 4 includes a vibratory feeder 41, a material distribution telescopic assembly 42, and a material pushing telescopic assembly 43. The vibratory feeder 41 is installed inside the support frame 1 and connected to one end of the material distribution telescopic assembly 42 for automatically sorting the scattered iron sheets 92 and conveying them to one end of the material distribution telescopic assembly 42. The material distribution telescopic assembly 42 and the material pushing telescopic assembly 43 are arranged perpendicularly to each other and connected to the material pushing telescopic assembly 43 at the other end for pushing the iron sheets 92 to one end of the material pushing telescopic assembly 43. The material pushing telescopic assembly 43 then pushes the iron sheets 92 into the upper electrode 31 where they are clamped and fixed by the upper electrode 31.

[0064] Specifically, a vibratory feeder 41 and a conveying guide 44 are installed inside the upper chamber of the support box 12. The bottom of the vibratory feeder 41 is fixed to the upper chamber, and a support platform 46 is installed at the lower end of the conveying guide 44, which is connected to the upper chamber. The output end of the vibratory feeder 41 is connected to one end of the conveying guide 44, and the other end of the conveying guide 44 extends out of the support box 12 and is connected to one end of the material distribution telescopic assembly 42. The other end of the material distribution telescopic assembly 42 is connected to the material pushing telescopic assembly 43. One end of the material pushing telescopic assembly 43 extends out of the outer circumference of the support box 12 and is fixed to the outer circumference of the support box 12 by a connecting fixing plate 47, while the other end extends into the upper chamber of the support box 12. The material pushing telescopic assembly 43 and the conveying guide 44 are parallel and spaced apart, so that the material pushing telescopic assembly 43, the material distribution telescopic assembly 42, and the conveying guide 44 form a U-shaped structure.

[0065] The vibratory plate 41 automatically sorts the scattered iron pieces 92 and transmits them to one end of the material distribution telescopic component 42 through the conveying guide groove 44. The material distribution telescopic component 42 pushes the individual iron pieces to one end of the material pushing telescopic component 43. The material pushing telescopic component 43 can extend and retract to accurately push the iron pieces 92 into the upper electrode 31, where they are held by the upper electrode 31.

[0066] In order to fine-tune the position between the material distribution telescopic component 42 and the material pushing telescopic component 43 to facilitate the pushing of the iron sheet, a first displacement adjustment component 45 is connected between the material distribution telescopic component 42 and the material pushing telescopic component 43. The first displacement adjustment component 45 is preferably a telescopic cylinder.

[0067] like Figures 14-15As shown. Further, the steel ring transfer mechanism 6 includes a transfer rotation assembly 63, a steel ring clamping assembly 61, and a rotating arm 62. The transfer rotation assembly 63 is mounted on the support frame 1. One end of the rotating arm 62 is connected to the transfer rotation assembly 63, and the other end is connected to the steel ring clamping assembly 61. The transfer rotation assembly 63 drives the rotating arm to rotate, and after the steel ring 91 on the steel ring buffer mechanism 5 is clamped by the steel ring clamping assembly 61, it is transferred to the lower electrode 32.

[0068] Specifically, a transfer rotating assembly 63 is provided on the outer circumference of the support box 12 located below the material distribution telescopic assembly 42 and the material pushing telescopic assembly 43. One end of the transfer rotating assembly 63 is connected to a rotating arm 62, and a steel ring clamping assembly 61 is provided at the end of the rotating arm 62 extending outward toward the support box 12. The steel ring clamping assembly 61 includes a finger cylinder 611 and a finger clamping 612. The finger cylinder 611 is vertically connected to one end of the rotating arm 62, and the downward moving end of the finger cylinder 611 is provided with the finger clamping 612.

[0069] The transfer rotating assembly 63 drives the steel ring clamping assembly 61 to rotate and move between the lower electrode 32 and the free end of the suspension arm 51. With the transfer rotating assembly 63 as the center point, the steel ring clamping assembly 61 moves around the transfer rotating assembly 63 between the free end of the suspension arm 51 and the lower electrode 32, intermittently transferring the steel ring from the suspension arm 51 to the lower electrode 32. To adjust the extended position of the steel ring clamping assembly 61, the transfer rotating assembly 63 is connected to the outer circumference of the support box 12 via a three-dimensional moving slide, so that the steel ring clamping assembly 61 can stably move the steel ring. The transfer rotating assembly 63 is preferably a rotary motor or a rotary slide.

[0070] To adjust the position of the steel ring transfer mechanism 6, a second displacement adjustment component 64 is connected to the tail end of the rotating arm 62. The second displacement adjustment component 64 is connected to the outer circumferential surface of the support box 12 via a support plate 65. The second displacement adjustment component 64 is preferably a horizontal moving slide.

[0071] like Figures 16-17 As shown. Further, the steel ring buffer mechanism 5 includes a suspension arm 51, a stop 52, and a pushing assembly 53. One end of the suspension arm 51 is connected to the support frame 1, and the other end is a free end extending towards the steel ring transfer mechanism 6 to limit the steel ring 91 and prevent it from slipping out of the suspension arm 51. The stop 52 is disposed on the suspension arm 51 to stop the suspended steel ring 91. The pushing assembly 53 is disposed on the suspension arm 51 adjacent to the stop 52 and is used to push the stopped steel ring to the free end of the suspension arm 51.

[0072] Specifically, the upper surface of the suspension arm 51 has an inclined surface 511, which slopes downwards towards the free end. Several steel rings can be pre-suspended on the inclined surface 511 of the suspension arm 51 and slid along the inclined surface towards the stop 52. The end of the stop 52 extends beyond the inclined surface 511. The pushing component 53 lifts the steel rings in contact with the stop 52, moving them past the stop 52 towards the free end of the suspension arm 51. When the steel rings slide to the free end of the suspension arm 51, they are clamped by the steel ring transfer mechanism 6 and moved to the lower electrode 32. A photoelectric sensor is provided at the free end of the suspension arm 51. One end of the pushing component 53 is connected to the photoelectric sensor. The photoelectric sensor is used to sense whether the steel ring transfer mechanism 6 is in position. After the steel ring transfer mechanism 6 is in position, the photoelectric sensor triggers the pushing component 53 to push the steel rings. The pushing component 53 is preferably a telescopic cylinder with a pushing rod at its end, which lifts the steel rings.

[0073] To adjust the position of the suspension arm 51 to match the steel ring transfer mechanism 6, a third moving adjustment component 54 is connected to the tail end of the suspension arm 51 via a connecting shaft 55. The third moving adjustment component 54 is fixed to the outer circumferential surface of the support box 12. The third moving adjustment component 54 is preferably a vertical moving slide.

[0074] To facilitate the partial suspension of steel rings 91, the suspension arm 51 is axially spaced with hanging rods 512. The hanging rods 512 can stop and buffer the steel rings 91 in batches. After the steel rings at the front are pushed out, the hanging rods 512 at the corresponding positions are pulled out, and the steel rings 91 stopped at this position are slid towards the stop member 52.

[0075] Furthermore, the support frame 1 is also equipped with a controller and a power module. The controller is electrically connected to the steel ring unloading mechanism, the steel ring lifting mechanism, the steel ring positioning and rotating mechanism, the steel ring transfer mechanism, and the steel ring buffer mechanism. The controller is located in the lower box of the support box 12 and is a PLC controller, which can program the corresponding program to control the orderly operation of each mechanism.

[0076] Specifically, the controller is electrically connected to the drive motor, positioning and rotating assembly, electrode linear movement module, vibratory feeder, material distribution telescopic assembly, material pushing telescopic assembly, pushing assembly, transfer and rotating assembly, and steel ring clamping assembly 61 to control their respective orderly actions. The power supply module is electrically connected to the upper and lower electrodes and the controller, and the controller controls the power supply module to provide power.

[0077] The present invention provides a welding device for the vertical ring of a utility pole reinforcement cage, the working steps of which are as follows: Step 1, Steel Ring Loading: The operator manually suspends multiple steel rings 91 on the suspension arm 51 of the steel ring buffer mechanism 5. The steel rings 91 slide along the inclined plane 511 towards the stop 52 by gravity and accumulate at the stop 52. When the steel ring clamping assembly 61 of the steel ring transfer mechanism 6 rotates to the free end of the suspension arm 51, the photoelectric sensor detects that it is in position, and the pushing assembly 53 lifts the bottom steel ring 91, so that it slides over the stop 52 to the free end.

[0078] Step 2, steel ring transfer: After the steel ring 91 reaches the free end of the suspension arm 51, the steel ring clamping component 61 of the steel ring transfer mechanism 6 can clamp the steel ring 91 and rotate it 90° to transfer the steel ring 91 to the side of the upper electrode 31. At the same time, the steel ring clamping component 61 releases the steel ring, and the steel ring 91 is attached to the upper electrode 31.

[0079] Step 3, steel ring positioning and rotation: The three clamping rollers 25 of the steel ring positioning and rotation mechanism 2 expand outward synchronously along the radial direction of the steel ring under the drive of the synchronous belt drive assembly 23, and tighten it from the inner wall of the steel ring 91, so as to achieve centering and firm clamping of the steel ring 91.

[0080] Step 4, Automatic feeding of iron sheets: The vibrating plate 41 of the iron sheet feeding mechanism 4 automatically sorts the scattered iron sheets 92 and conveys them to the distributing position of the distributing telescopic component 42 through the conveying guide 44. The distributing telescopic component 42 pushes the individual iron sheets 92 to the pushing position of the pushing telescopic component 43. The pushing telescopic component 43 then accurately pushes the iron sheet 92 into the groove of the upper electrode 31, where it is clamped and fixed by the upper electrode 31. Step 5, Steel Ring Height Adjustment: Since the steel ring 91 is attached to the lower electrode 32, in order to ensure that the welding plane of the steel ring 91 is always in the optimal welding position, the steel ring lifting mechanism 8 drives the steel ring positioning and rotating mechanism 2 to move up and down. At the same time, the tensioning roller 25 is automatically adjusted so that the welding plane of the steel ring 91 is at the optimal welding height to be compatible with steel rings 91 of different outer diameter specifications.

[0081] Step 6, resistance heat welding: The electrode linear movement module 33 drives the upper electrode 31 to move towards the steel ring 91, so that the iron sheet 92 is in close contact with the outer wall of the steel ring 91. The upper electrode 31 and the lower electrode 32 are connected to the steel ring 91 through the iron sheet 92. After being energized, the upper electrode 31 and the lower electrode 32 use resistance heat to complete the welding of the iron sheet 92 and the steel ring 91.

[0082] Step 7, Rotation Indexing: The steel ring lifting mechanism 8 drives the steel ring positioning and rotating mechanism 2 to rise, and then the tensioning roller 25 drives the steel ring 91 to rotate at a certain angle under the drive of the positioning and rotating component 24, in preparation for the welding position of the next iron piece 92.

[0083] Step 8, repeat welding: The steel ring lifting mechanism 8 drives the steel ring positioning and rotating mechanism 2 to descend, so that the steel ring 91 is once again attached to the lower electrode 32. Repeat steps 6-7 to weld the iron sheet 92 in sequence.

[0084] Step 9, Finished product unloading: After all the iron sheets 92 points are welded, the upper electrode 31 returns to its original position, the tension roller 25 retracts and releases the steel ring 91. At this time, the steel ring unloading mechanism 7 is activated, pushing the finished product frame upright ring 9 horizontally from the lower electrode 32 and into the collection box or conveyor belt, completing one work cycle.

Claims

1. A welding device for the upright ring of a utility pole's reinforcing cage, characterized in that, include: Support frame (1); The steel ring positioning and rotating mechanism (2) is set at one end of the support frame (1) and is used to telescopically move the support steel ring (91) and drive the steel ring (91) to rotate intermittently axially. The resistance welding mechanism (3) includes an upper electrode (31), a lower electrode (32) and an electrode linear movement module (33). The lower electrode (32) is disposed on the support frame (1) and adjacent to the steel ring positioning and rotating mechanism (2) for attaching the steel ring (91). The upper electrode (31) is disposed on the electrode linear movement module (33) and located on the outer periphery of the steel ring positioning and rotating mechanism (2) for carrying the iron sheet (92). The electrode linear movement module (33) is disposed on the support frame (1) for driving the upper electrode (31) to move and communicate with the lower electrode (32). The iron sheet feeding mechanism (4) is set on the support frame (1), one end of which is used to store and release the iron sheet (92), and the other end is used to telescopically move to push the iron sheet (92) into the upper electrode (31); The steel ring buffer mechanism (5) is connected to the support frame (1) at one end and is used to store and release the steel ring (91) at the other end. The steel ring transfer mechanism (6) is hinged at one end to the support frame (1) and at the other end to hold the steel ring (91). It transfers the steel ring (91) on the steel ring buffer mechanism (5) by rotating around the hinge point and then suspends it on the lower electrode (32).

2. The pole reinforcement cage frame welding device according to claim 1, characterized in that, The steel ring positioning and rotating mechanism (2) includes an active roller moving module (21), a positioning and rotating component (24), and a clamping roller (25). At least three active roller moving modules (21) are arranged in a circular array and are all connected to one end of the support frame (1). Each active roller moving module (21) is provided with the positioning and rotating component (24) for driving the positioning and rotating component (24) to move radially along the steel ring (91). The clamping roller (25) is arranged on the positioning and rotating component (24) and is driven to rotate axially by it. The upper electrode (31) is located between a pair of adjacent active roller moving modules (21).

3. The pole reinforcement cage frame vertical ring welding device according to claim 1, characterized in that, The steel ring positioning and rotating mechanism (2) includes an active roller moving module (21), a driven roller moving module (22), a synchronous belt drive assembly (23), a positioning and rotating assembly (24), and a tensioning roller (25). One active roller moving module (21) and at least two driven roller moving modules (22) are arranged in a circular array and are all connected to one end of the support frame (1). The positioning and rotating assembly (24) is provided on both the active roller moving module (21) and the driven roller moving module (22). The clamping roller (25) is mounted on the positioning rotating assembly (24) and driven to rotate axially thereon. The synchronous belt drive assembly (23) connects the active roller moving module (21) and the driven roller moving module (22) to drive the positioning rotating assembly (24) to move radially along the steel ring (91). The upper electrode (31) is located between an adjacent pair of driven roller moving modules (22) or between the active roller moving module (21) and the driven roller moving module (22).

4. The pole reinforcement cage frame vertical ring welding device according to any one of claims 1-3, characterized in that, The iron sheet feeding mechanism (4) includes a vibratory feeder (41), a material distribution telescopic assembly (42), and a material pushing telescopic assembly (43). The vibratory feeder (41) is located inside the support frame (1) and connected to the material distribution telescopic assembly (42). It is used to automatically sort the scattered iron sheets (92) and transport them to one end of the material distribution telescopic assembly (42). The material distribution telescopic assembly (42) is connected to the material pushing telescopic assembly (43) and is used to push the iron sheets (92) to one end of the material pushing telescopic assembly (43). The material pushing telescopic assembly (43) is used to push the iron sheets (92) into the upper electrode (31).

5. The pole reinforcement cage frame welding device according to claim 4, characterized in that, The steel ring buffer mechanism (5) includes a suspension arm (51), a stop (52), and a pushing component (53). One end of the suspension arm (51) is connected to the support frame (1), and the other end is a free end. The stop (52) is disposed on the suspension arm (51) to stop the suspended steel ring (91). The pushing component (53) is disposed on the suspension arm (51) and adjacent to the stop (52) to push the stopped steel ring (91) to the other end of the suspension arm (51).

6. The pole reinforcement cage frame welding device according to claim 5, characterized in that, The steel ring transfer mechanism (6) includes a transfer rotation component (63), a steel ring clamping component (61) and a rotating arm (62). The transfer rotation component (63) is mounted on the support frame (1). One end of the rotating arm (62) is connected to the transfer rotation component (63), and the other end is connected to the steel ring clamping component (61).

7. The pole reinforcement cage frame vertical ring welding device according to claim 6, characterized in that, It also includes a steel ring ejection mechanism (7) and a steel ring lifting mechanism (8). The steel ring ejection mechanism (7) is set on the support frame (1) and one end is adjacent to the lower electrode (32). It is used to push the steel ring (91) hanging on the lower electrode (32) out of the lower electrode (32). The steel ring lifting mechanism (8) is set at one end of the support frame (1), and the steel ring positioning and rotating mechanism (2) is set on the steel ring lifting mechanism (8).

8. The pole reinforcement cage frame vertical ring welding device according to claim 3, characterized in that, The synchronous belt drive assembly (23) includes an outer synchronous pulley (231), an inner synchronous pulley (232), and a synchronous belt (233). The outer synchronous pulley (231) is respectively disposed at the outer end of the active roller moving module (21) and the outer end of the driven roller moving module (22). The inner synchronous pulley (232) is respectively disposed between the inner ends of adjacent active roller moving modules (21) and the inner ends of driven roller moving modules (22) and between the inner ends of adjacent pairs of driven roller moving modules (22). The synchronous belt (233) sequentially loops around the outer synchronous pulley (231) and the inner synchronous pulley (232) and is connected to the active roller moving module (21) and the driven roller moving module (22), or a positioning rotating assembly (24), for driving the positioning rotating assembly (24) to move synchronously.

9. The pole reinforcement cage frame welding device according to claim 8, characterized in that, The active roller moving module (21) includes an active support base plate (211) and an active linear moving component (212). The active support base plate (211) is disposed on the support frame (1), and the active linear moving component (212) is disposed on the active support base plate (211). The positioning rotation component (24) is slidably connected to the active linear moving component (212), and the synchronous belt (233) is connected to one side of the active linear moving component (212). The driven roller moving module (22) includes a driven support base plate (221) and a driven linear moving component (222). The driven support base plate (221) is connected to the active support base plate (211). The driven linear moving component (222) is disposed on the driven support base plate (221), and the positioning rotation component (24) is slidably connected to the driven linear moving component (222). The synchronous belt (233) is connected to one side of the driven linear moving component (222).

10. The pole reinforcement cage frame vertical ring welding device according to claim 9, characterized in that, The active linear motion component (212) includes a drive motor (2121), a lead screw (2122), an active linear guide rail (2123), and an active slider (2124). The active linear guide rail (2123) is mounted on the active support base plate (211). The two ends of the lead screw (2122) are slidably sleeved on the two ends of the active support base plate (211). The drive motor (2121) is mounted on one end of the active support base plate (211) and connected to one end of the lead screw (2122). The active slider (2124) is screwed onto the lead screw (2122) and slidably connected to the active linear guide rail (2123). The positioning rotation component (24) is provided on the active slider (2124), and the synchronous belt (233) is connected to one side of the active slider (2124); the driven linear motion component (222) includes a driven linear guide (2221) and a driven slider (2222). The driven linear guide (2221) is provided on the driven support base plate (221). The driven slider (2222) is slidably connected to the driven linear guide (2221). The positioning rotation component (24) is provided on the driven slider (2222), and the synchronous belt (233) is connected to one side of the driven slider (2222).

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