Welding device for corner part of cable bridge

Abstract

The invention discloses a welding device for a corner part of a cable bridge, and particularly relates to the welding technology, the welding device comprises a base, and center positioning structures for fixing the center of the bridge are distributed in the middle of the upper end of the base in an array mode; a corner positioning structure fixedly connected with the lower end of a telescopic rod of the telescopic control cabinet and used for positioning the corner angle of the bridge is arranged on the top wall of an inner cavity of the shell, and a rotary arm welding device is arranged on the front side of the corner positioning structure through a sliding rail. The corner positioning structure moves up and down to press, fix and release a bridge frame, the center positioning structure clamps, supports and positions the center of the bridge frame, the corner positioning structure adjusts and locks the corner angle of the bridge frame, the rotating arm welding equipment accurately welds the corner part through sliding rail movement, all the structures cooperate with one another, the layout is scientific and reasonable, and the welding efficiency is improved. And a foundation is laid for precise development of positioning, angle adjustment and welding operation, the stability and efficiency of the whole operation are effectively improved, and the welding precision and quality are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a welding device for the corner parts of cable trays. Background Technology

[0002] The field of welding technology encompasses the technical methods, equipment, and related process systems used in joining various materials. Its core principle is to achieve atomic bonding at the contact surfaces of the materials to be joined through heating and pressurization, or a combination of both, thereby forming a joint with a certain strength. This technology field comprehensively covers the research and development and manufacturing of welding equipment, including the design and optimization of key components such as welding power sources, welding torches, and clamping mechanisms; the formulation and improvement of welding processes, involving determining appropriate welding current, voltage, and welding speed parameters based on different material thicknesses; the design of welding schemes for different workpiece structures, such as welding operation specifications for straight sections, irregular shapes, and corner structures; and welding quality inspection technologies and standards to ensure that welded joints meet the strength and sealing performance requirements of practical applications. It is widely used in structural joining processes across multiple industries, including construction, power, machinery manufacturing, and shipbuilding. One type of welding device for cable tray corners refers to a specific device designed specifically for welding operations on cable trays at corner locations. The device addresses several technical issues, including: accurate positioning of the workpiece to be welded at the cable tray corner by setting a positioning groove that matches the shape of the cable tray corner, allowing the two cable tray sections at the corner to be stably placed within the groove and their relative positions fixed; guiding the movement of the welding torch during welding operations by installing a guide rail that can move along the corner trajectory, with the welding torch mounted on a slider adapted to the guide rail, allowing the welding torch to move along a preset path for the corner weld; fixing the device to the work site by setting adjustable support feet at the bottom of the device, with anti-slip pads on the bottom of the support feet, adjusting the height of the support feet to keep the device level and increase friction with the ground; and providing auxiliary support during welding at the cable tray corner by setting retractable tightening bolts on both sides of the positioning groove, with the ends of the tightening bolts contacting the surface of the cable tray to further limit the displacement of the cable tray during the welding process.

[0003] Existing technologies rely solely on positioning slots and tightening bolts to fix cable trays, which cannot adapt to different sizes and the uneven support force can easily lead to cable tray displacement. They also rely solely on guide rails and sliders to guide the welding torch, lacking angle adjustment and precise locking structures. When dealing with cable trays of different sizes or welding at specific angles, it is difficult to ensure stable welding angles and achieve complete fixation of the cable trays, resulting in insufficient positioning accuracy and affecting welding quality and operational efficiency. Summary of the Invention

[0004] The main object of the present invention is to provide a welding device for the corner part of a cable tray, which can effectively solve the problems involved in the above-mentioned background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A welding device for the corner part of a cable tray, comprising a base, a housing arranged at the upper end of the base, and a telescopic control cabinet arranged at the upper end of the housing. In the middle of the upper end of the base, a central positioning structure for fixing the center of the cable tray is arranged in an array distribution. On the top wall of the inner cavity of the housing, a corner positioning structure is arranged, which is fixedly connected to the lower end of the telescopic rod of the telescopic control cabinet for positioning the corner angle of the cable tray. In front of the corner positioning structure, a rotary arm welding device is arranged through a slide rail.

[0006] Preferably, the central positioning structure includes a mounting seat fixedly installed at the upper end of the base. In the middle of the upper end of the mounting seat, a central support component for supporting the inner wall of the cable tray is arranged. On the front and back of the upper end of the mounting seat, wing plate clamping components for clamping and positioning the front and back side walls of the cable tray are symmetrically arranged.

[0007] Preferably, the central support component includes a central plate installed at the upper end of the mounting seat. A T-shaped block is slidably connected to the inner surface of the central plate. A compression spring four fixedly connected to the inner wall of the central plate is fixedly installed at the lower end of the T-shaped block. A plurality of L-shaped oil channels communicating with the side wall of the horizontal part of the T-shaped block are vertically distributed and opened at the lower end of the vertical part of the T-shaped block. On the bottom wall of the inner surface of the central plate, a plurality of piston rods three slidably connected to the inner wall of the vertical part of the adjacent L-shaped oil channels are fixedly connected in a rectangular distribution. Four piston rods four are slidably connected to the inner surface of the horizontal part of the L-shaped oil channels. The ends of the two piston rods four on the same side away from the central plate are jointly fixedly connected to a support block for supporting the inner wall of the cable tray.

[0008] Preferably, the central support component further includes a sliding plate slidably connected to the lower end of the central plate. The upper end of the sliding plate is fixedly connected to the lower end of the T-shaped block through a limiting column. Buffer rods are symmetrically rotatably connected to the front and back of the lower end of the sliding plate. The ends of the two buffer rods away from the sliding plate are rotatably connected to contact blocks slidably connected to the inner surface of the mounting seat. The two contact blocks are respectively in close contact with the adjacent wing plate clamping components.

[0009] Preferably, the wing plate clamping component includes a gear rotatably connected to the inner surface of the mounting seat. U-shaped rods are symmetrically slidably connected to the left and right of the inner surface of the mounting seat. The two U-shaped rods are distributed in a shape like the Chinese character "mu", and racks meshing with the gear are fixedly connected to the inner surfaces of their vertical parts. A compression spring one is jointly fixedly connected to the opposite sides of the horizontal parts of the two U-shaped rods. Clamping plates are respectively fixedly connected to the upper ends of the two U-shaped rods. The two clamping plates are distributed oppositely. In the initial state, the clamping plates are separated from each other under the action of the compression spring one.

[0010] Preferably, the corner positioning structure includes a central block installed at the lower end of the telescopic rod of the telescopic control cabinet. Angle adjustment components are symmetrically arranged on the inner surface of the central block. A connecting rod is provided on the side of the two angle adjustment components that are far apart from each other. Corner clamping components are fixedly installed at the lower ends of the two connecting rods respectively. A pressing block for pressing the middle part of the cable tray is symmetrically fixedly connected to the lower end of the central block.

[0011] Preferably, the corner clamping assembly includes a U-shaped block installed at the lower end of the connecting rod. The lower end of the horizontal portion of the U-shaped block is slidably connected to a T-shaped pressure plate via a spring. The vertical portion of the U-shaped block is symmetrically connected to elastic contact plates via springs. The lower parts of the two elastic contact plates near the inner wall of the U-shaped block are symmetrically rotatably connected to a connecting rod 2 that is rotatably connected to the inner wall of the U-shaped block. The upper parts of the two elastic contact plates near the inner wall of the U-shaped block are symmetrically rotatably connected to a connecting rod 1. The two connecting rods 1 on the same side are rotatably connected to a slider that is slidably connected to the inner wall of the U-shaped block. The upper ends of the two sliders are fixedly connected to a piston rod 1 that is slidably connected to the inner cavity of the U-shaped block.

[0012] Preferably, the inner cavity of the U-shaped block is symmetrically connected to a second piston rod along the left and right sides of the T-shaped pressure plate. The lower end of the second piston rod is fixedly connected to a connecting tongue that fits against the upper end of the T-shaped pressure plate. The chambers of the first piston rod and the second piston rod are connected by a hydraulic pipe. When the T-shaped pressure plate rises, the connecting tongue pushes the second piston rod upward and drives the first piston rod downward through hydraulic action.

[0013] Preferably, the angle adjustment assembly includes a sliding rod slidably connected to the inner surface of the center block and an adjustment groove formed at the upper end of the center block. A synchronous wheel is rotatably connected to the inner surface of the sliding rod. A rocker arm is fixedly installed at the upper end of the synchronous wheel and slidably connected to the inner surface of the adjustment groove. A driven shaft is rotatably connected to the end of the sliding rod away from the rocker arm and fixedly connected to an adjacent connecting rod. The synchronous wheel and the driven shaft are connected by a synchronous belt drive. A locking member is provided on the inner wall of the adjustment groove to lock the relative position of the sliding rod.

[0014] Preferably, the locking component includes locking teeth symmetrically distributed on the inner wall of the adjustment groove. Two of the locking teeth are slidably connected to the inner wall of the adjustment groove by a spring. The outer wall of the central shaft of the crank handle is provided with a tooth groove that matches the locking teeth. The ends of the two locking teeth that are far apart from each other are fixedly connected to a cable. The front end of the central block is rotatably connected to a knob that is wound around the cables on both sides. When the knob is rotated, the locking teeth separate from the adjacent tooth grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention provides a stable foundation support through a base, protects the internal components through an outer shell, and controls the telescopic control cabinet to move the telescopic rod up and down to move the corner positioning structure, thereby achieving compression, fixation, and release of the cable tray. The central positioning structure clamps and supports the cable tray from the center, the corner positioning structure adjusts and locks the corner angle of the cable tray, and the rotary arm welding equipment moves along the slide rail to precisely weld the corner parts. All structures work together in a scientific and reasonable layout, laying the foundation for precise positioning, angle adjustment, and welding operations, effectively improving the stability and efficiency of the overall operation, and ensuring welding accuracy and quality.

[0016] 2. This invention uses a centrally positioned mounting base as a foundation, in conjunction with a central support assembly and a wing plate clamping assembly. Under pressure from the T-shaped block of the central support assembly, hydraulic oil in the L-shaped oil passage is squeezed, pushing the piston rod to drive the support block to press against the inner wall of the cable tray. It is adaptable to different sizes and provides uniform support force. At the same time, the T-shaped block drives the contact block to link with the wing plate clamping assembly through a sliding plate and a buffer rod. This allows the U-shaped rod to overcome the spring force of the compression spring and drive the clamping plate to clamp the side wall of the cable tray synchronously through rack and gear transmission, forming a double fixation. This effectively prevents the cable tray from shifting and ensures accurate positioning and stable welding.

[0017] 3. This invention provides an installation base for the angle adjustment component through the central block of the corner positioning structure. The telescopic control cabinet drives the central block to press the pressure block down onto the middle of the cable tray, which, in conjunction with the central positioning structure, achieves comprehensive fixation of the cable tray from top to bottom and inside to outside. The U-shaped block of the corner clamping component provides installation support. The T-shaped pressure plate rises and pushes the connecting tongue to drive the piston rod two. Through the hydraulic pipe, the piston rod one pushes the slider, and through connecting rod one and connecting rod two, the elastic contact plate is pressed tightly against the cable tray, which prevents damage and improves the clamping tightness. The angle adjustment component adjusts and locks the corner angle, and the connecting rod transmits power, providing stable conditions for welding and ensuring welding accuracy.

[0018] 4. This invention utilizes the sliding rod of the angle adjustment component in conjunction with the center block to adjust the horizontal position to accommodate different angle adjustment needs, effectively increasing the range of angle adjustment. The rocker arm slides within the adjustment groove, driving the synchronous wheel to rotate. The synchronous wheel drives the driven shaft via a synchronous belt, which in turn drives the connecting rod to rotate and adjust the angle of the cable tray. The synchronous belt drive ensures precise power transmission and prevents slippage. The knob rotation of the locking component pulls the locking teeth apart from the tooth groove via a cable, releasing the lock. After the angle is reached, the locking teeth re-engage with the tooth groove via a spring, fixing the positions of the rocker arm and sliding rod to prevent angle deviation during welding and ensuring stable and precise welding angle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the outer casing of the present invention; Figure 3This is a schematic diagram of the central positioning structure of the present invention; Figure 4 This is a schematic diagram of the structure of the central support component of the present invention; Figure 5 This is a bottom view of the central support component of the present invention; Figure 6 This is a schematic diagram of the structure of the wing plate clamping assembly of the present invention; Figure 7 This is a schematic diagram of the corner positioning structure of the present invention; Figure 8 This is a schematic diagram of the corner clamping assembly of the present invention; Figure 9 This is a schematic diagram of the angle adjustment component of the present invention; Figure 10 This is a schematic diagram of the locking component assembly of the present invention.

[0020] In the diagram: 1. Base; 2. Rotary arm welding equipment; 3. Corner positioning structure; 31. Center block; 32. Angle adjustment assembly; 321. Handle; 322. Synchronous pulley; 323. Adjustment groove; 324. Driven shaft; 325. Sliding rod; 326. Locking element; 3261. Locking tooth; 3262. Tooth groove; 3263. Cable; 3264. Knob; 33. Connecting rod; 34. Corner clamping assembly; 341. U-shaped block; 342. T-shaped pressure plate; 343. Elastic contact plate; 344. Connecting rod one; 345. Connecting rod two; 346. Slider; 347. Piston rod one 348. Piston rod II; 349. Connecting tongue; 35. Pressure block; 4. Telescopic control cabinet; 5. Center positioning structure; 51. Mounting base; 52. Wing plate clamping assembly; 521. Clamping plate; 522. U-shaped rod; 523. Compression spring I; 524. Rack; 525. Gear; 53. Center support assembly; 530. Contact block; 531. Center plate; 532. T-shaped block; 533. Support block; 534. L-shaped oil passage; 535. Piston rod III; 536. Sliding plate; 537. Buffer rod; 538. Compression spring IV; 539. Piston rod IV; 6. Housing. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1: A welding device for the corner section of a cable tray, see reference. Figure 1 and Figure 2The device includes a base 1, an outer shell 6 located on the upper end of the base 1, and a telescopic control cabinet 4 located on the upper end of the outer shell 6. A center positioning structure 5 for fixing the center of the cable tray is arranged in an array in the middle of the upper end of the base 1. A corner positioning structure 3 for positioning the angle of the cable tray is provided on the top wall of the inner cavity of the outer shell 6 and is fixedly connected to the lower end of the telescopic rod of the telescopic control cabinet 4. A rotary arm welding device 2 is arranged on the front side of the corner positioning structure 3 via a slide rail. The rotary arm welding device 2 is an existing device that guides a robotic arm with a welding head to move left and right by a guide rail. It is a commonly used technical means in existing welding devices. Its specific installation method and operating principle will not be described in detail in this invention.

[0023] The base 1 provides a stable foundation for the entire device, the outer shell 6 protects the internal components, the telescopic control cabinet 4 controls the telescopic rod to move the corner positioning structure 3 up and down, realizing the compression, fixation and release of the cable tray, the center positioning structure 5 can clamp and support the cable tray from the center, the corner positioning structure 3 is responsible for adjusting and locking the corner angle of the cable tray, and the rotary welding equipment 2 can move in front of the corner positioning structure 3 via the slide rail to perform precise welding on the corner part. The scientific and reasonable layout of each component lays the foundation for the precise implementation of subsequent positioning, angle adjustment and welding operations, effectively improving the stability and efficiency of the overall operation.

[0024] In this embodiment, the base 1 provides stable foundation support, the outer shell 6 protects the internal components, the telescopic control cabinet 4 controls the telescopic rod to move the corner positioning structure 3 up and down, realizing the compression, fixation and release of the cable tray, the center positioning structure 5 clamps and supports the cable tray from the center, the corner positioning structure 3 adjusts and locks the corner angle of the cable tray, and the rotary arm welding equipment 2 moves through the slide rail to accurately weld the corner part. The various structures work together in a scientific and reasonable layout, laying the foundation for accurate positioning, angle adjustment and welding operations, effectively improving the stability and efficiency of the overall operation, and ensuring the accuracy and quality of welding.

[0025] Example 2: Based on Example 1, this example uses the mounting base 51 of the central positioning structure 5 as a foundation, in conjunction with the central support assembly 53 and the wing plate clamping assembly 52. ​​The T-shaped block 532 of the central support assembly 53 is pressed down to squeeze the hydraulic oil in the L-shaped oil passage 534, pushing the piston rod 539 to drive the support block 533 to press against the inner wall of the cable tray. It is suitable for different sizes and provides uniform support force. At the same time, the T-shaped block 532 drives the contact block 530 to link with the wing plate clamping assembly 52 through the sliding plate 536 and the buffer rod 537. This allows the U-shaped rod 522 to overcome the elastic force of the compression spring 523 and drive the clamping plate 521 to clamp the side wall of the cable tray synchronously through the rack 524 and the gear 525, forming a double fixation, effectively preventing the cable tray from shifting and ensuring accurate positioning and stable welding.

[0026] For further details, please refer to [link / reference]. Figure 3The central positioning structure 5 includes a mounting base 51 fixedly installed on the upper end of the base 1. A central support component 53 supporting the inner wall of the cable tray is provided in the middle of the upper end of the mounting base 51. Wing plate clamping components 52 for clamping and positioning the front and rear side walls of the cable tray are symmetrically arranged at the front and rear of the upper end of the mounting base 51. The mounting base 51 is the mounting base for each component of the central positioning structure 5, which can ensure the stability of the position of each component. When the pressure block 35 of the corner positioning structure 3 is pressed down, the central support component 53 can extend to both sides and tightly abut against the inner wall of the cable tray to achieve support and positioning of the inner side of the cable tray. Under the linkage action of the central support component 53, the wing plate clamping components 52 can drive the clamping plates 521 to move closer or further away from each other to complete the clamping and release of the front and rear side walls of the cable tray. The two work together to form a double fixation of the center of the cable tray, effectively preventing the cable tray from shifting during angle adjustment and welding, and ensuring the accuracy of positioning.

[0027] For further details, please refer to [link / reference]. Figure 4 The central support assembly 53 includes a central plate 531 mounted on the upper end of the mounting base 51. A T-shaped block 532 is slidably connected to the inner surface of the central plate 531. A compression spring 538 is fixedly mounted at the lower end of the T-shaped block 532 and fixedly connected to the inner wall of the central plate 531. Several L-shaped oil passages 534 are rectangularly distributed at the lower end of the vertical part of the T-shaped block 532 and communicate with the side wall of its horizontal part. Several piston rods 535 are rectangularly distributed and fixedly connected to the bottom wall of the inner surface of the central plate 531 and slidably connected to the inner wall of the vertical part of the adjacent L-shaped oil passages 534. Piston rods 539 are slidably connected to the inner surface of the horizontal part of each of the four L-shaped oil passages 534. The ends of the two piston rods 539 on the same side away from the central plate 531 are jointly fixedly connected to a support block 533 supporting the inner wall of the support bridge.

[0028] The center plate 531 provides installation and sliding guidance for components such as the T-block 532 and piston rod 535. When the pressure block 35 presses down on the middle of the cable tray, the cable tray transmits the force to the T-block 532, causing the T-block 532 to slide downward in the center plate 531 and compress the spring 538. During the movement of the T-block 532, the hydraulic oil in the L-shaped oil passage 534 is squeezed, which pushes the piston rod 535 and piston rod 539 to move synchronously. The piston rod 539 drives the support block 533 to extend to both sides and press tightly against the inner wall of the cable tray. The hydraulic transmission method can ensure that the extension speed and support force of each support block 533 are uniform, which can be adapted to the inner wall of the cable tray of different sizes, enhance the stability of the inner support of the cable tray, and avoid deformation of the inner side of the cable tray during welding.

[0029] For further details, please refer to [link / reference]. Figure 5The central support assembly 53 also includes a sliding plate 536 that is slidably connected to the lower end of the central plate 531. The upper end of the sliding plate 536 is fixedly connected to the lower end of the T-shaped block 532 through a limiting post. The lower end of the sliding plate 536 is symmetrically connected to buffer rods 537. The ends of the two buffer rods 537 away from the sliding plate 536 are rotatably connected to contact blocks 530 that are slidably connected to the inner surface of the mounting base 51. The two contact blocks 530 are respectively in close contact with the adjacent wing plate clamping assembly 52.

[0030] When the T-block 532 slides downward, the limiting post drives the sliding plate 536 to slide downward synchronously at the lower end of the center plate 531. During the movement of the sliding plate 536, the buffer rod 537 rotates. The buffer rod 537 pushes the contact block 530 to slide to both sides on the inner surface of the mounting base 51. The contact block 530 contacts the wing plate clamping assembly 52 and applies pressure, providing power for the clamping action of the wing plate clamping assembly 52. ​​The buffer rod 537 can effectively buffer the impact force during the pressure transmission process, avoiding damage to the components due to excessive pressure. The contact block 530 can make the pressure transmission more stable, ensuring that the action of the wing plate clamping assembly 52 is accurate and synchronous.

[0031] For further details, please refer to [link / reference]. Figure 6 The wing plate clamping assembly 52 includes a gear 525 rotatably connected to the inner surface of the mounting base 51. U-shaped rods 522 are symmetrically slidably connected to the inner surface of the mounting base 51. The two U-shaped rods 522 are distributed in a V-shape, and racks 524 that mesh with the gear 525 are fixedly connected to the inner surface of their vertical parts. Compression springs 523 are fixedly connected to the opposite side of the horizontal parts of the two U-shaped rods 522. Clamping plates 521 are fixedly connected to the upper ends of the two U-shaped rods 522 respectively. The two clamping plates 521 are distributed opposite each other. In the initial state, the clamping plates 521 move away from each other under the action of the compression springs 523.

[0032] In the initial state, the elastic force of the compression spring 523 causes the two U-shaped rods 522 to move away from each other, thereby causing the clamping plate 521 to separate, which facilitates the operator to complete the initial placement of the cable tray smoothly. When the contact block 530 applies pressure, the U-shaped rods 522 overcome the elastic force of the compression spring 523 and move, driving the gear 525 to rotate through the rack 524, causing the two U-shaped rods 522 to move relative to each other, thereby causing the clamping plate 521 to move closer to each other and clamp the front and rear side walls of the cable tray. The gear and rack transmission method can ensure that the two clamping plates 521 move synchronously, and the clamping force is stable and uniform, which can effectively prevent the cable tray from shifting forward and backward during subsequent angle adjustment and welding operations, and ensure the stability of positioning.

[0033] In Example 3, based on Example 2, the central block 31 of the corner positioning structure 3 provides the installation base for the angle adjustment component 32. The telescopic control cabinet 4 drives the central block 31 to press the pressure block 35 down onto the middle of the cable tray, which, together with the central positioning structure 5, achieves comprehensive fixation of the cable tray from top to bottom and inside to outside. The U-shaped block 341 of the corner clamping component 34 provides installation support. The T-shaped pressure plate 342 rises and pushes the connecting tongue 349 to drive the piston rod 348. Through the hydraulic pipe, the piston rod 347 pushes the slider 346. Through the connecting rod 344 and the connecting rod 345, the elastic contact plate 343 is pressed tightly against the cable tray, which prevents damage and improves the clamping tightness. The angle adjustment component 32 adjusts and locks the corner angle, and the connecting rod 33 transmits power to provide stable conditions for welding and ensure welding accuracy.

[0034] For further details, please refer to [link / reference]. Figure 7 The corner positioning structure 3 includes a central block 31 installed at the lower end of the telescopic rod of the telescopic control cabinet 4. Angle adjustment components 32 are symmetrically arranged on the inner surface of the central block 31. A connecting rod 33 is arranged on the side of the two angle adjustment components 32 that are far apart from each other. Corner clamping components 34 are fixedly installed at the lower ends of the two connecting rods 33 respectively. A pressing block 35 for pressing the middle part of the cable tray is symmetrically fixedly connected to the lower end of the central block 31.

[0035] The center block 31 provides the mounting base for the angle adjustment assembly 32. The telescopic control cabinet 4 controls the telescopic rod to move the center block 31 up and down. The pressure block 35 at the lower end of the center block 31 moves down and contacts the middle of the cable tray, applying pressure to achieve the pressure fixation of the middle of the cable tray. The angle adjustment assembly 32 can adjust and lock the angle of the cable tray. The connecting rod 33 transmits the rotational power of the angle adjustment assembly 32 to the angle clamping assembly 34. The angle clamping assembly 34 can clamp and fix the angle of the cable tray. The pressure fixation of the pressure block 35 and the clamping support of the center positioning structure 5 cooperate with each other to achieve comprehensive fixation of the cable tray in the vertical and horizontal and internal and external directions, providing stable conditions for angle adjustment and welding operations.

[0036] For further details, please refer to [link / reference]. Figure 8 The corner clamping assembly 34 includes a U-shaped block 341 installed at the lower end of the connecting rod 33. The lower end of the horizontal part of the U-shaped block 341 is slidably connected to a T-shaped pressure plate 342 by a spring. The vertical part of the U-shaped block 341 is symmetrically connected to elastic contact plates 343 by springs. The lower part of the two elastic contact plates 343 near the inner wall of the U-shaped block 341 is symmetrically connected to a connecting rod 345 that is rotatably connected to the inner wall of the U-shaped block 341. The upper part of the two elastic contact plates 343 near the inner wall of the U-shaped block 341 is symmetrically connected to a connecting rod 344. The two connecting rods 344 on the same side are rotatably connected to a slider 346 that is slidably connected to the inner wall of the U-shaped block 341. The upper ends of the two sliders 346 are fixedly connected to a piston rod 347 that is slidably connected to the inner cavity of the U-shaped block 341.

[0037] U-shaped block 341 provides installation support for each component of corner clamping assembly 34. When pressure block 35 presses down on the cable tray, the cable tray drives T-shaped pressure plate 342 to move upward. Through hydraulic linkage, piston rod 347 moves downward. Piston rod 347 pushes slider 346 downward. Slider 346 drives elastic contact plate 343 to move inward through connecting rod 344. Connecting rod 345 assists elastic contact plate 343 to rotate, so that elastic contact plate 343 is in close contact with the side wall of cable tray, realizing clamping of the corner part of cable tray. Elastic contact plate 343 has a certain elasticity and can adapt to the curvature of cable tray surface, avoiding damage to cable tray during clamping, while improving clamping tightness and stability.

[0038] For further details, please refer to [link / reference]. Figure 8 A piston rod 348 is symmetrically slidably connected to the inner cavity of the U-shaped block 341 along the left and right sides of the T-shaped pressure plate 342. The lower end of the piston rod 348 is fixedly connected to a connecting tongue 349 that fits against the upper end of the T-shaped pressure plate 342. The chambers of the piston rod 347 and the piston rod 348 are connected by a hydraulic pipe. When the T-shaped pressure plate 342 rises, the connecting tongue 349 pushes the piston rod 348 upward and drives the piston rod 347 downward through hydraulic action.

[0039] During the upward movement of the T-shaped pressure plate 342, it contacts the connecting tongue 349 and pushes it upward. The connecting tongue 349 drives the piston rod 348 to slide upward in the inner cavity of the U-shaped block 341. Since the chambers of the piston rod 347 and the piston rod 348 are connected by a hydraulic pipe, the movement of the piston rod 348 causes a pressure change in the hydraulic oil in the chamber, which in turn drives the piston rod 347 to move downward. The hydraulic transmission responds quickly and the power transmission is stable, which can achieve precise linkage between the T-shaped pressure plate 342 and the piston rod 347, ensuring that the clamping action of the corner clamping assembly 34 is timely and accurate, and works in synergy with the pressing action of the pressure block 35 to improve the fixing effect of the corner of the cable tray.

[0040] In Example 4, based on Example 3, the sliding rod 325 of the angle adjustment component 32 cooperates with the center block 31 to adjust the horizontal position to adapt to different angle adjustment needs, effectively increasing the range of angle adjustment. The crank handle 321 slides in the adjustment groove 323, driving the synchronous wheel 322 to rotate. The synchronous wheel 322 drives the driven shaft 324 through the synchronous belt, and the driven shaft 324 drives the connecting rod 33 to rotate to adjust the angle of the bridge frame. The synchronous belt drive ensures accurate power transmission and avoids slippage. The knob 3264 of the locking component 326 rotates, and the cable 3263 pulls the locking tooth 3261 to separate from the tooth groove 3262 to release the lock. After the angle is in place, the locking tooth 3261 is reset by the spring to engage the tooth groove 3262, fixing the position of the crank handle 321 and the sliding rod 325, preventing angle deviation during welding, and ensuring stable and accurate welding angle.

[0041] For further details, please refer to [link / reference]. Figure 9 The angle adjustment assembly 32 includes a sliding rod 325 slidably connected to the inner surface of the center block 31 and an adjustment groove 323 opened at the upper end of the center block 31. A synchronous wheel 322 is rotatably connected to the inner surface of the sliding rod 325. A rocker arm 321 slidably connected to the inner surface of the adjustment groove 323 is fixedly installed at the upper end of the synchronous wheel 322. A driven shaft 324 fixedly connected to the adjacent connecting rod 33 is rotatably connected to the end of the sliding rod 325 away from the rocker arm 321. The synchronous wheel 322 and the driven shaft 324 are connected by a synchronous belt drive. A locking member 326 is provided on the inner wall of the adjustment groove 323 to lock the relative position of the sliding rod 325.

[0042] When adjusting the angle, first unlock the locking element 326. The sliding rod 325 can slide left and right within the center block 31. The operator can adjust the horizontal position of the sliding rod 325 to adapt to different angle adjustment requirements. Hold the crank handle 321 and slide it within the adjustment groove 323 to drive the synchronous wheel 322 to rotate. The synchronous wheel 322 drives the driven shaft 324 to rotate via the synchronous belt. The driven shaft 324 drives the connecting rod 33 to rotate, thereby adjusting the angle of the bridge frame. The synchronous belt drive can ensure the accuracy of power transmission and avoid slippage during angle adjustment. The adjustable design of the sliding rod 325 increases the angle adjustment range and can meet the welding requirements of different angles.

[0043] For further details, please refer to [link / reference]. Figure 10 The locking component 326 includes locking teeth 3261 symmetrically distributed on the inner wall of the adjustment groove 323. The two locking teeth 3261 are slidably connected to the inner wall of the adjustment groove 323 by springs. The outer wall of the central shaft of the crank 321 is provided with a tooth groove 3262 that matches the locking teeth 3261. The ends of the two locking teeth 3261 that are far apart from each other are fixedly connected to a cable 3263. The front end of the central block 31 is rotatably connected to a knob 3264 that is wound around the cables 3263 on both sides. When the knob 3264 is rotated, the locking teeth 3261 are separated from the adjacent tooth groove 3262.

[0044] Before adjusting the angle, turn knob 3264. Knob 3264 winds cable 3263 and pulls locking tooth 3261, causing locking tooth 3261 to overcome spring force and separate from tooth groove 3262, thus releasing the locking state and facilitating adjustment of sliding rod 325 and rotation of crank handle 321. After the angle is adjusted to the correct position, release knob 3264. Locking tooth 3261 resets under spring force and re-engages with tooth groove 3262, preventing crank handle 321 from rotating. The relative position of sliding rod 325 is also restricted. Locking component 326 has a simple structure and is easy to operate. It can effectively fix the angle and position of sliding rod 325, preventing the angle from shifting due to vibration and other factors during welding, and ensuring the stability and accuracy of the welding angle.

[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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for cable bridge corner part, comprising a base (1), a shell (6) arranged on the upper end of the base (1), and a telescopic control cabinet (4) arranged on the upper end of the shell (6), characterized in that: The center positioning structure (5) is arranged in the middle of the upper end of the base (1) and is used for fixing the center of the bridge frame, the corner positioning structure (3) is arranged on the top wall of the inner cavity of the shell (6) and is fixedly connected with the lower end of the telescopic rod of the telescopic control cabinet (4) and is used for positioning the corner angle of the bridge frame, and the rotary arm welding equipment (2) is arranged on the front side of the corner positioning structure (3) through a slide rail.

2. The cable tray corner welding device according to claim 1, wherein: The center positioning structure (5) comprises a mounting seat (51) fixedly installed on the upper end of the base (1), and a center support assembly (53) for supporting the inner wall of the bridge frame is arranged in the middle of the upper end of the mounting seat (51).

3. The device for welding corner parts of cable bridge according to claim 2, characterized in that: The center support assembly (53) comprises a center plate (531) installed on the upper end of the mounting seat (51), a T-shaped block (532) slidably connected to the inner surface of the center plate (531), a compression spring four (538) fixedly installed at the lower end of the T-shaped block (532) and fixedly connected with the inner wall of the center plate (531), a plurality of L-shaped oil channels (534) arranged in a rectangular distribution at the lower end of the vertical part of the T-shaped block (532) and communicated with the side wall of the horizontal part of the T-shaped block (532), a plurality of piston rods three (535) fixedly connected in a rectangular distribution to the bottom wall of the inner surface of the center plate (531) and slidably connected with the inner wall of the vertical part of the adjacent L-shaped oil channel (534), and a piston rod four (539) slidably connected to the inner surface of the horizontal part of the L-shaped oil channel (534), wherein the same-side two piston rods four (539) are fixedly connected at the end, away from the center plate (531), of the support block (533) for supporting the inner wall of the bridge frame.

4. The device for welding corner parts of cable bridge according to claim 3, characterized in that: The center support assembly (53) further comprises a sliding plate (536) slidably connected to the lower end of the center plate (531), the sliding plate (536) is fixedly connected to the lower end of the T-shaped block (532) through a limiting column, and a buffer rod (537) is rotatably connected to the lower end of the sliding plate (536) in a front-rear symmetrical mode, the same-side two buffer rods (537) are rotatably connected to the contact blocks (530) slidably connected to the inner surface of the mounting seat (51), and the same-side two contact blocks (530) are respectively in close contact with the adjacent wing plate clamping assembly (52).

5. The device for welding corner parts of cable bridge according to claim 4, characterized in that: The wing plate clamping assembly (52) comprises a gear (525) rotatably connected to the inner surface of the mounting seat (51), and a U-shaped rod (522) slidably connected to the inner surface of the mounting seat (51) in a left-right symmetrical mode, wherein the same-side two U-shaped rods (522) are arranged in a character-shaped mode, the vertical part of each U-shaped rod (522) is fixedly connected to a rack (524) engaged with the gear (525), the opposite side of the horizontal part of each U-shaped rod (522) is fixedly connected to a compression spring one (523), and each U-shaped rod (522) is fixedly connected to a clamping plate (521) at the upper end, and the clamping plates (521) are arranged in a relative mode and are away from each other under the action of the compression spring one (523) in an initial state.

6. The device for welding corner parts of cable bridge according to claim 1, characterized in that: The corner positioning structure (3) comprises a center block (31) mounted at the lower end of the telescopic control cabinet (4) telescopic rod, the inner surface of the center block (31) is symmetrically provided with an angle adjusting assembly (32), the side away from each other of the two angle adjusting assemblies (32) is commonly provided with a connecting rod (33), the lower end of the two connecting rods (33) is respectively fixedly provided with a corner clamping assembly (34), and the lower end of the center block (31) is fixedly connected with a compression block (35) for compressing the middle part of the bridge.

7. The device for welding corner parts of cable bridge according to claim 6, characterized in that: The corner clamping assembly (34) comprises a U-shaped block (341) mounted at the lower end of the connecting rod (33), the lower end of the horizontal part of the U-shaped block (341) is slidably connected with a T-shaped pressing plate (342) through a spring, the vertical part of the U-shaped block (341) is symmetrically fixedly connected with an elastic contact plate (343) through a spring, the lower part of the side close to the inner wall of the U-shaped block (341) of the two elastic contact plates (343) is rotatably connected with a connecting rod two (345) rotatably connected with the inner wall of the U-shaped block (341), the upper part of the side close to the inner wall of the U-shaped block (341) of the two elastic contact plates (343) is rotatably connected with a connecting rod one (344), and the two connecting rod ones (344) on the same side are commonly rotatably connected with a sliding block (346) slidably connected with the inner wall of the U-shaped block (341), and the upper end of the two sliding blocks (346) is fixedly connected with a piston rod one (347) slidably connected with the inner cavity of the U-shaped block (341).

8. The device for welding corner parts of cable bridge according to claim 7, characterized in that: The inner cavity of the U-shaped block (341) is slidably connected with a piston rod two (348) symmetrically along the T-shaped pressing plate (342), the lower end of the piston rod two (348) is fixedly connected with a connecting tongue (349) abutting the upper end of the T-shaped pressing plate (342), and the chambers of the piston rod one (347) and the piston rod two (348) are communicated through a hydraulic pipe. When the T-shaped pressing plate (342) rises, the connecting tongue (349) pushes the piston rod two (348) to move upwards and drives the piston rod one (347) to move downwards through hydraulic action.

9. The device for welding corner parts of cable bridge according to claim 6, characterized in that: The angle adjusting assembly (32) comprises a sliding rod (325) slidably connected with the inner surface of the center block (31) and an adjusting groove (323) opened at the upper end of the center block (31), the inner surface of the sliding rod (325) is rotatably connected with a synchronous wheel (322), the upper end of the synchronous wheel (322) is fixedly provided with a handle (321) slidably connected with the inner surface of the adjusting groove (323), one end of the sliding rod (325) away from the handle (321) is rotatably connected with a driven shaft (324) fixedly connected with the adjacent connecting rod (33), the synchronous wheel (322) and the driven shaft (324) are drivingly connected through a synchronous belt, and the inner wall of the adjusting groove (323) is provided with a locking member (326) for locking the relative position of the sliding rod (325).

10. The device for welding corner parts of a cable bridge according to claim 9, characterized in that: The locking piece (326) comprises locking teeth (3261) symmetrically distributed on the inner wall of the adjusting groove (323), the two locking teeth (3261) are slidably connected with the inner wall of the adjusting groove (323) through springs, the outer wall of the central shaft of the handle (321) is provided with tooth grooves (3262) matched with the locking teeth (3261), and the ends of the two locking teeth (3261) away from each other are fixedly connected with cables (3263); the front end of the central block (31) is rotatably connected with a knob (3264) which is wound with the two cables (3263); when the knob (3264) rotates, the locking teeth (3261) are separated from the adjacent tooth grooves (3262).

Images