Welding device for cable bridge production

Abstract

The invention belongs to the technical field of positioning welding, and particularly relates to a cable bridge production welding device which comprises a supporting frame, two movable groove-shaped seats are arranged above the supporting frame, the two groove-shaped seats are parallel to each other, a movable double-shaft portal frame is arranged on the supporting frame and covers the two groove-shaped seats, and the two groove-shaped seats are parallel to each other. A hanging seat is hung on the double-shaft portal frame; the side plates can be positioned through the arranged groove-shaped base, the multiple crosspieces can be sequentially pushed to the position between the two side plates through the arranged groove-shaped frame through the material pushing mechanism to be spliced, and the spliced side plates and the crosspieces can be positioned and clamped through the arranged L-shaped clamping plate matched with the groove-shaped base. The double-shaft portal frame can drive the groove-shaped frame and the L-shaped clamping plate to move at equal intervals, the crosspieces can be continuously spliced and positioned and welded, splicing and positioned welding can be carried out at the same time, and therefore the welding machining efficiency of the ladder type cable bridge is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of positioning welding, and particularly relates to a cable bridge production welding device. BACKGROUND

[0002] The cable bridge is divided into groove type, tray type, ladder type and net type structures, and is composed of a support, a supporting arm and installation accessories. The bridge in a building can be independently erected or laid on various building and pipe gallery supports, and should have the characteristics of simple structure, beautiful appearance, flexible configuration and convenient maintenance, and all parts need to be galvanized. The bridge laid in the open air of a building is installed after galvanizing.

[0003] A patent application with the publication number CN120862197A discloses a cable bridge welding device. The application realizes one-time splicing of several square tubes and two side plates through the conveying mechanism, and then realizes positioning and clamping of the square tubes and the side plates through the cooperation of the welding frame, the supporting table, the clamping plate and the support. After clamping, several welding robots are arranged to realize welding, so that the automatic welding platform of the cable bridge is realized, the welding efficiency and consistency are significantly improved, and manual intervention is reduced. Since the ladder-shaped cable bridge is mainly composed of two side plates and several crosspieces, the crosspieces and the side plates are connected through welding. Before welding, the crosspieces and the side plates need to be spliced, and the spacing between the several crosspieces needs to be kept consistent. Therefore, the crosspieces and the side plates need to be positioned when splicing, and the spacing needs to be measured when each crosspiece is spliced and positioned. This process cannot be performed simultaneously with welding. In the prior art, the several crosspieces and the side plates are first spliced and positioned, and then several welding robots are used for welding. Although manual intervention can be reduced, several welding robots are needed for welding, and the welding robots themselves are high in cost and require a lot of manpower and time for fault maintenance, thereby reducing the production efficiency.

[0004] Therefore, the application provides a cable bridge production welding device. SUMMARY

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0006] The technical scheme adopted by the present application to solve its technical problems is: a cable bridge production welding device, comprising a support frame, two movable groove seats are arranged above the support frame, the two groove seats are parallel to each other, a movable double-shaft gantry is arranged on the support frame, the double-shaft gantry covers the two groove seats, a hanging seat is hung on the double-shaft gantry, the hanging seat is located between the two groove seats, two movable L-shaped clamping plates are arranged on one end of the hanging seat, a notch is arranged on the side of the L-shaped clamping plate close to the groove seat, a welding mechanism is arranged on the L-shaped clamping plate, the welding mechanism is used for welding the ladder-type cable bridge, a groove frame is hung on the other end of the hanging seat, a pushing mechanism and a first clamping mechanism are arranged on the groove frame, the pushing mechanism is used for pushing the displacement of the crosspieces in the groove frame, and the first clamping mechanism is used for clamping and fixing the crosspieces in the groove frame.

[0007] Preferably, the pushing mechanism comprises a push plate, the push plate penetrates into the interior of the groove frame, a second servo motor is fixedly connected to the bottom of the groove frame, an output shaft of the second servo motor is fixedly connected with a fourth screw rod, the fourth screw rod is in threaded cooperation with the push plate, a first hanging frame is fixedly connected to the top of the groove frame, and the first hanging frame is movably connected to the hanging seat.

[0008] Preferably, the first clamping mechanism comprises two pressing plates, the two pressing plates are symmetrically arranged on the two sides of the groove frame, a second hanging frame is fixedly connected to the top of the two pressing plates, the second hanging frame movably penetrates through the first hanging frame, a second hydraulic cylinder is fixedly connected to the top of the groove frame, and the second hanging frame is fixedly connected to the telescopic end of the second hydraulic cylinder.

[0009] Preferably, a protection mechanism is arranged on the L-shaped clamping plate, the protection mechanism is used for clamping and protecting the side plate, the protection mechanism comprises a groove clamping plate, the groove clamping plate is sleeved above the crosspiece, the groove clamping plate is made of graphite material, two first hydraulic cylinders are fixedly connected to the groove clamping plate, one end of the first hydraulic cylinder is fixedly connected to the L-shaped clamping plate, and the first hydraulic cylinder is used for pushing the groove clamping plate to clamp the side plate in the groove seat.

[0010] Preferably, the welding mechanism comprises a welding gun, a support is rotatably connected to the welding gun, a linear motor is arranged at the bottom of the support, the linear motor is fixedly connected to the L-shaped clamping plate, a fourth hydraulic rod is rotatably connected to the top of the support, and the telescopic end of the fourth hydraulic rod is rotatably connected to the welding gun.

[0011] Preferably, a first adjusting mechanism is arranged on the hanging seat, the first adjusting mechanism is used for adjusting the distance between the groove frame and the L-shaped clamping plate, the first adjusting mechanism comprises a first servo motor, the first servo motor is fixedly connected to the hanging seat, an output shaft of the first servo motor is fixedly connected with a third screw rod, and the third screw rod is in threaded cooperation with the first hanging frame.

[0012] Preferably, the suspension base is provided with a second adjustment mechanism for driving the displacement of the two L-shaped clamps. The second adjustment mechanism includes a second dual-axis motor and two movable seats. The two movable seats are symmetrically movable on the suspension base. A third hydraulic cylinder is fixedly connected to the bottom of each of the two movable seats. The two L-shaped clamps are respectively fixed to the telescopic ends of the two third hydraulic cylinders. The second dual-axis motor is fixedly connected to the suspension base and is centrally located between the two movable seats. The output shafts at both ends of the second dual-axis motor are fixedly connected to second lead screws. The two second lead screws are threadedly engaged with the two movable seats respectively.

[0013] Preferably, both ends of the slotted seat are provided with positioning mechanisms. The positioning mechanisms are used to position the welded part on the slotted seat. The positioning mechanism includes a clamping rod, one end of which is fixedly connected to a clamping block, and the other end of which is fixedly connected to a spring.

[0014] Preferably, a slide rod is provided on one side of the slotted seat, a movable seat is movably connected to the slide rod, and a positioning mechanism on the other end of the slotted seat is connected to the movable seat.

[0015] Preferably, a first dual-axis motor is fixedly connected to both ends of the top of the support frame, and a first lead screw is fixedly connected to the output shafts at both ends of the first dual-axis motor, with the first lead screw threaded into the slotted seat.

[0016] The beneficial effects of this invention are as follows: 1. The cable tray production welding device of the present invention addresses the issue that, during the welding of ladder-type cable trays, several crossbars and side plates need to be spliced ​​together before welding, or several crossbars need to be spliced ​​and welded continuously. Neither of these processes allows for simultaneous positioning and welding of the crossbars during the feeding and splicing process, thus affecting the efficiency of ladder-type cable tray welding. In this application, a trough-shaped seat positions the side plates, a trough-shaped frame pushes several crossbars sequentially between two side plates for splicing via a pushing mechanism, and an L-shaped clamp, in conjunction with the trough-shaped seat, positions and clamps the spliced ​​side plates and crossbars. After clamping, welding is performed by a welding mechanism. A dual-axis gantry crane drives the trough-shaped frame and L-shaped clamp to perform equidistant displacement, enabling continuous splicing and positioning welding of several crossbars, with splicing and positioning welding occurring simultaneously, thereby improving the efficiency of ladder-type cable tray welding.

[0017] 2. The cable tray production welding device of the present invention, through the set protective mechanism, can clamp and protect the side plate during welding, and can prevent the side plate from bending due to stress during welding. When the end of the crossbar is spliced ​​on the side plate, the first hydraulic cylinder can be opened to push the channel-shaped clamping plate to move towards the side plate until the channel-shaped clamping plate can fit and press against the side plate. Since the side plate is positioned and embedded in the channel-shaped seat, when the first hydraulic cylinder pushes the channel-shaped clamping plate to press against the side plate, the channel-shaped clamping plate and the channel-shaped seat can clamp and protect the side plate. Through the design of the channel-shaped clamping plate, when the channel-shaped clamping plate is pressed against the side plate, there is a welding gap between the groove of the channel-shaped clamping plate and the splice of the crossbar, which facilitates the subsequent welding of the splice and can clamp and protect the area around the splice during welding, avoiding stress bending of the side plate caused by the welding force, and improving the welding quality of the trapezoidal cable tray. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram showing the connection between the support frame and the slotted seat in this invention; Figure 3 It is in this invention Figure 2 Enlarged view of A in the middle; Figure 4 This is a schematic diagram showing the connection between the slotted frame and the L-shaped clamp in this invention; Figure 5 This is a schematic diagram showing the connection between the slotted seat and the L-shaped clamp in this invention; Figure 6 This is a schematic diagram showing the connection between the slotted seat and the slotted frame in this invention; Figure 7 It is in this invention Figure 6 A diagram showing the view from below; Figure 8 This is a schematic diagram showing the connection of the grooved clamp, the L-shaped clamp, and the welding torch in this invention.

[0020] In the diagram: 1. Support frame; 11. Dual-axis gantry frame; 12. First dual-axis motor; 121. First lead screw; 2. Slotted seat; 3. Hanger; 31. Second dual-axis motor; 311. Second lead screw; 32. First servo motor; 321. Third lead screw; 4. Slotted frame; 41. First hanger; 42. Push plate; 43. Second servo motor; 431. Fourth lead screw; 5. Slotted clamping plate; 51. First hydraulic cylinder; 6. Pressure plate; 61. Second hanger; 62. Second hydraulic cylinder; 7. L-shaped clamping plate; 71. Third hydraulic cylinder; 72. Moving seat; 8. Welding torch; 81. Bracket; 82. Fourth hydraulic rod; 83. Linear motor; 9. Clamping rod; 91. Clamping block; 92. Spring. 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] like Figures 1 to 8 As shown, an embodiment of the present invention provides a cable tray production welding device, including a support frame 1. Two movable slotted seats 2 are arranged above the support frame 1 and are parallel to each other. A movable double-axis gantry frame 11 is arranged on the support frame 1, covering the two slotted seats 2. A hanging seat 3 is suspended on the double-axis gantry frame 11 and is centrally located between the two slotted seats 2. Two movable L-shaped clamps 7 are arranged on one end of the hanging seat 3. The L-shaped clamps 7 have slots on the side near the slotted seats 2. A welding mechanism is arranged on both L-shaped clamps 7. The welding mechanism is used to weld the trapezoidal cable tray. A slotted frame 4 is suspended on the other end of the hanging seat 3. A pushing mechanism and a first clamping mechanism are arranged on the slotted frame 4. The pushing mechanism is used to push the horizontal bars inside the slotted frame 4 to move, and the first clamping mechanism is used to clamp and fix the horizontal bars inside the slotted frame 4. In operation, firstly, this invention is mainly applicable to welding ladder-type cable trays, which consist of several horizontal bars and two side plates. The several horizontal bars are fixed to the web of the two side plates by welding, and the several horizontal bars are parallel to each other and equidistant from each other. In the existing technology, when welding ladder cable trays, it is necessary to first splice several crossbars with side plates, and then weld them. Alternatively, several crossbars may be spliced ​​and welded continuously. Neither of these processes allows the crossbars to be positioned and welded simultaneously during the loading and splicing process, thus affecting the efficiency of ladder cable tray welding. Therefore, in the welding process of the ladder-type cable tray, the two side plates are first placed into the two slotted seats 2 for positioning. Then, several crossbars to be welded are clamped in the slotted frame 4, with the crossbars located between the sides of the two side plates. Then, by adjusting the simultaneous displacement of the two slotted seats 2, the side plates positioned in the slotted seats 2 are made to fit against the ends of the crossbars. Before loading and welding, the initial position of the loading port of the slotted frame 4 is aligned with the welding position, and the two L-shaped clamps 7 are located directly in front of the slotted frame 4. Then, the first clamping mechanism on the slotted frame 4 is opened to release the clamps on the crossbars, and then the slotted frame 4 is opened to release the clamps. The pushing mechanism on the frame 4 pushes the horizontal bars to move until one of the horizontal bars inside the slot frame 4 lands on the two side plates, at which point the pushing stops. Then, the first clamping mechanism is opened to clamp and fix the remaining horizontal bars inside the slot frame 4, so that the slot frame 4 can move the remaining horizontal bars. The horizontal bars that land on the two side plates will lose the clamping of the first clamping mechanism. At this time, the double-axis gantry 11 is opened to move the lifting seat 3. The lifting seat 3 can move the suspended slot frame 4 and L-shaped clamp 7 simultaneously. The slot frame 4 will move the remaining clamped horizontal bars until the L-shaped clamp 7 moves to the position where it is joined with the side plates. The machine stops on the crossbar. At this time, the movable L-shaped clamp 7 presses against the crossbar. Since the crossbar is mounted on one side of the two side plates, and since the two side plates are respectively embedded in the two slotted seats 2, the slotted seats 2 and the L-shaped clamp 7 cooperate to clamp and position the spliced ​​crossbar and side plates. Then, the welding mechanism on the L-shaped clamp 7 is opened to weld the side plates and crossbar. After welding, the movable L-shaped clamp 7 is released from clamping the crossbar. At the same time as the positioning welding, the first clamping mechanism on the slotted frame 4 is released from clamping the inner crossbar again, causing the pusher on the slotted frame 4 to... The structure can push the internal crossbars to move until one crossbar moves to the point where it is spliced ​​between two side plates and stops. After stopping, the first clamping mechanism on the channel frame 4 will clamp and fix the remaining crossbars again, so that the channel frame 4 can drive the remaining crossbars to move again. At this time, the double-axis gantry frame 11 drives the hanger 3 to move again. The hanger 3 drives the channel frame 4 and L-shaped clamp 7 to the next processing position for feeding and welding. This process is repeated, which can drive several crossbars to be continuously fed and positioned. Welding can be carried out at the same time during the feeding process, thereby improving the efficiency of ladder cable tray welding processing. It should be noted that the spacing of the lateral displacement of the lifting seat 3 driven by the dual-axis gantry frame 11 remains unchanged each time, while the distance between the material outlet of the slot frame 4 and the clamping position of the L-shaped clamping plate 7 is equal to the spacing of the lifting seat 3 each time it is displaced. This allows the slot frame 4 and the L-shaped clamping plate 7 to be aligned with each processing position when the lifting seat 3 drives the slot frame 4 and the L-shaped clamping plate 7 to move, thereby keeping the spacing of the positioning welding of several crossbars consistent. In summary, the trough-shaped seat 2 can position the side plates, the trough-shaped frame 4 can push several crossbars sequentially between two side plates for splicing through the pushing mechanism, the L-shaped clamp 7, in conjunction with the trough-shaped seat 2, can position and clamp the spliced ​​side plates and crossbars. After clamping, welding is performed through the welding mechanism. The dual-axis gantry frame 11 can drive the trough-shaped frame 4 and the L-shaped clamp 7 to move at equal distances, so that several crossbars can be continuously spliced ​​and positioned for welding. Moreover, splicing and positioning welding can be performed simultaneously, thereby improving the efficiency of ladder cable tray welding.

[0023] like Figure 7 As shown, the above-mentioned pushing mechanism includes a push plate 42, which passes through the inside of the slot frame 4. A second servo motor 43 is fixedly connected to the bottom of the slot frame 4. A fourth lead screw 431 is fixedly connected to the output shaft of the second servo motor 43. The fourth lead screw 431 is threadedly engaged with the push plate 42. A first hanger 41 is fixedly connected to the top of the slot frame 4. The first hanger 41 is movably connected to the hanger 3. During operation, the pushing mechanism can push the crossbars on the slot frame 4 one by one into the side plate for splicing. That is, by turning on the second servo motor 43, the fourth lead screw 431 can be driven to rotate. The fourth lead screw 431 can drive the threaded push plate 42 to move inside the slot frame 4. The push plate 42 can push the crossbars inside the slot frame 4 to move. The crossbars near the material outlet of the slot frame 4 automatically fall into the side plate with the displacement. At this time, the pushing mechanism stops pushing, so that the second servo motor 43 pushes one crossbar into the side plate each time it runs.

[0024] like Figure 6 As shown, the first clamping mechanism includes two pressure plates 6, which are symmetrically arranged on both sides of the slot frame 4. The top of the two pressure plates 6 is fixedly connected to a second hanger 61, which movably passes through the first hanger 41. The top of the slot frame 4 is fixedly connected to a second hydraulic cylinder 62, and the second hanger 61 is fixedly connected to the telescopic end of the second hydraulic cylinder 62. During operation, when the trough frame 4 stops pushing material, the first clamping mechanism on the trough frame 4 clamps and fixes the internal crossbars, so that when the trough frame 4 moves, it can drive the clamped crossbars to move simultaneously. That is, the second hydraulic cylinder 62 pulls the connected second hanger 61 downward to apply pressure, and the two pressure plates 6 connected to both ends of the second hanger 61 can press downward simultaneously. Since the two pressure plates 6 are set on both sides of the trough frame 4, the two downward pressing pressure plates 6 can cooperate with the trough frame 4 to clamp and fix the internal crossbars, so that when the trough frame 4 moves, it will drive the clamped crossbars to move synchronously.

[0025] like Figure 5 and Figure 8As shown, both L-shaped clamps 7 are equipped with protective mechanisms. The protective mechanisms are used to clamp the side plates for protection. The protective mechanisms include a grooved clamp 5, which is sleeved on the top of the crossbar. The grooved clamp 5 is made of graphite material. Two first hydraulic cylinders 51 are fixedly connected to the grooved clamp 5. One end of the two first hydraulic cylinders 51 is fixedly connected to the L-shaped clamp 7. The first hydraulic cylinders 51 are used to push the grooved clamp 5 to clamp the side plates inside the grooved seat 2. During operation, the protective mechanism can clamp and protect the side plate during welding, preventing it from bending due to stress during welding. When the end of the crossbar is spliced ​​onto the side plate, opening the first hydraulic cylinder 51 can push the slotted clamp 5 towards the side plate until it fits and presses against the side plate. Since the side plate is positioned and embedded inside the slotted seat 2, when the first hydraulic cylinder 51 pushes the slotted clamp 5 against the side plate, the slotted clamp 5, in conjunction with the slotted seat 2, can clamp and protect the side plate. Due to the slotted structure design, when the slotted clamp 5 is pressed against the side plate, there is a welding gap between the slot of the slotted clamp 5 and the splice of the crossbar, which facilitates subsequent welding of the splice. During welding, it can clamp and protect the area around the splice, preventing stress bending of the side plate caused by the welding force, thus improving the welding quality of the trapezoidal cable tray.

[0026] like Figure 8 As shown, the above welding mechanism includes a welding torch 8, a bracket 81 rotatably connected to the welding torch 8, a linear motor 83 at the bottom of the bracket 81, the linear motor 83 being fixed to the L-shaped clamp 7, and a fourth hydraulic rod 82 rotatably connected to the top of the bracket 81, the telescopic end of the fourth hydraulic rod 82 being rotatably connected to the welding torch 8. During operation, after the L-shaped clamp 7 positions the spliced ​​crossbar and side plate, the welding mechanism set on the L-shaped clamp 7 can start welding. During the welding process, since the welding torch 8 is connected to the bracket 81, the bracket 81 can be displaced on the linear motor 83, thereby enabling the welding torch 8 to perform displacement welding. Furthermore, the fourth hydraulic rod 82 can push the welding torch 8 to rotate on the bracket 81, thereby adjusting the welding angle of the welding torch 8 so as to fully weld the connection between the side plate and the crossbar.

[0027] like Figure 4 and Figure 6 As shown, the above-mentioned hanging base 3 is provided with a first adjustment mechanism. The first adjustment mechanism is used to adjust the distance between the slot frame 4 and the L-shaped clamp 7. The first adjustment mechanism includes a first servo motor 32, which is fixedly connected to the hanging base 3. The output shaft of the first servo motor 32 is fixedly connected to a third lead screw 321, which is threadedly engaged with the first hanging frame 41. During operation, the first adjustment mechanism can adjust the distance between the slotted frame 4 and the L-shaped clamp 7, so that when the hanger 3 moves the slotted frame 4 and the L-shaped clamp 7 at a fixed distance, the slotted frame 4 and the L-shaped clamp 7 can be aligned with the two crossbars respectively. During adjustment, the first servo motor 32 drives the third lead screw 321 to rotate. The third lead screw 321 can drive the threaded first hanger 41 to move on the hanger 3. The first hanger 41 drives the suspended slotted frame 4 to move. Since the two L-shaped clamps 7 remain fixed in the lateral direction, the slotted frame 4... During displacement, the lateral distance between the two L-shaped clamps 7 can be adjusted. When adjusting the distance, the displacement distance can be measured by installing a laser rangefinder for precise adjustment. Laser rangefinders are a common technology, so they are not described in detail in this article. It should be noted that the distance of the fixed displacement of the hanging seat 3 driven by the dual-axis gantry frame 11 is always consistent with the distance between the hanging seat 3 and the channel frame 4, so that after the dual-axis gantry frame 11 drives the hanging seat 3 to a fixed displacement, the channel frame 4 and the L-shaped clamps 7 connected to the hanging seat 3 can be aligned with the welding positions of the two horizontal bars.

[0028] like Figure 4 and Figure 5 As shown, the above-mentioned hanging base 3 is provided with a second adjustment mechanism. The second adjustment mechanism is used to drive the displacement of the two L-shaped clamps 7. The second adjustment mechanism includes a second dual-axis motor 31 and two moving seats 72. The two moving seats 72 are symmetrically movable on the hanging base 3. The bottom of each of the two moving seats 72 is fixedly connected to a third hydraulic cylinder 71. The two L-shaped clamps 7 are respectively fixedly connected to the telescopic ends of the two third hydraulic cylinders 71. The second dual-axis motor 31 is fixedly connected to the hanging base 3, and the second dual-axis motor 31 is centrally located between the two moving seats 72. The output shafts at both ends of the second dual-axis motor 31 are fixedly connected to second lead screws 311. The two second lead screws 311 are respectively threadedly engaged with the two moving seats 72. During operation, the second adjustment mechanism drives the L-shaped clamp 7 to move, enabling it to press and position the spliced ​​crossbar. When the hanger 3 moves the two L-shaped clamps 7 above the spliced ​​crossbar, the second dual-axis motor 31 is activated to rotate the two second lead screws 311. The two lead screws 311 then drive the two moving seats 72 to move synchronously in opposite directions until the two L-shaped clamps 7 approach the two side plates. Then, the third hydraulic cylinder 71 is activated, pushing the L-shaped clamps 7 downward until they are pressed against the crossbar. This allows the L-shaped clamps 7 to press and position the spliced ​​crossbar. After the positioning welding is completed, the second dual-axis motor 31 and the third hydraulic cylinder 71 reset the L-shaped clamps 7, disengaging them from the crossbar so that the hanger 3 can move them to the next processing position for positioning and clamping.

[0029] likeFigure 2 and Figure 3 As shown, both ends of the above-mentioned slotted seat 2 are provided with positioning mechanisms. The positioning mechanisms are used to position the welded parts on the slotted seat 2. The positioning mechanisms include clamping rods 9, one end of which is fixedly connected to a clamping block 91, and the other end of which is fixedly connected to a spring 92. During operation, the welded side plate can be embedded into the slot seat 2, and one end of the side plate is aligned with one end of the slot seat 2. When positioning and clamping, by pulling the clamping rod 9 to move, the clamping rod 9 drives the clamping block 91 to disengage from the slot seat 2. When the clamping rod 9 moves, it will compress the connected spring 92. At this time, the side plate can be embedded between the slot seat 2 and the clamping block 91. Then, when the clamping rod 9 is released, the reaction force generated by the compression of the spring 92 will push the clamping block 91 to press against the side plate.

[0030] like Figure 2 As shown, a slide rod is provided on one side of the above-mentioned slotted seat 2, and a movable seat is movably connected to the slide rod. The positioning mechanism on the other end of the slotted seat 2 is connected to the movable seat. During operation, after the positioning mechanism on one end of the slotted seat 2 positions and clamps the aligned side plate, the positioning mechanism on the other end of the slotted seat 2 can be adjusted to move and clamp the other end of the side plate, making the side plate flexible during clamping and suitable for positioning and clamping side plates of different lengths.

[0031] like Figure 1 As shown, a first dual-axis motor 12 is fixedly connected to both ends of the top of the support frame 1. A first lead screw 121 is fixedly connected to the output shafts at both ends of the first dual-axis motor 12. The first lead screw 121 is threadedly engaged with the slotted seat 2. During operation, turning on the first dual-axis motor 12 can drive the two first lead screws 121 to rotate. The two first lead screws 121 can simultaneously drive the two threaded slotted seats 2 to move, thereby adjusting the distance between the two slotted seats 2. This allows for the splicing of crossbars of different lengths onto the two side plates. Furthermore, by adjusting the distance between the two slotted seats 2, it is easy to insert the crossbars between the two slotted seats 2, and it is also convenient to remove the welded ladder-type cable tray from between the two slotted seats 2.

[0032] Work process: First, the two side plates are positioned within the two slotted seats 2. Then, several crossbars to be welded are clamped within the slotted frame 4, with the crossbars positioned between the sides of the two side plates. The two slotted seats 2 are then simultaneously adjusted to position the side plates within the slotted seats 2 against the ends of the crossbars. Before welding, the initial position of the loading port of the slotted frame 4 is aligned with the welding position, and the two L-shaped clamps 7 are positioned directly in front of the slotted frame 4. The first clamping mechanism on the slotted frame 4 is then released from clamping the crossbars, and the pushing mechanism on the slotted frame 4 is then activated to push the crossbars out of position. The material pushing stops when one of the crossbars inside the channel frame 4 lands on the two side plates. Then, the first clamping mechanism is opened to re-clamp and fix the remaining crossbars inside the channel frame 4, allowing the channel frame 4 to move the remaining crossbars. The crossbars that land on the two side plates will lose the clamping of the first clamping mechanism. At this point, the double-axis gantry 11 is opened to move the lifting seat 3. The lifting seat 3 can move the suspended channel frame 4 and L-shaped clamp 7 simultaneously. The channel frame 4 will move the remaining clamped crossbars until the L-shaped clamp 7 moves to the crossbars that are spliced ​​with the side plates and stops. At this point, the drive... The movable L-shaped clamp 7 presses against the crossbar. Since the crossbar is mounted on one side of the two side plates, and the two side plates are respectively embedded in the two slotted seats 2, the slotted seats 2 and the L-shaped clamp 7 cooperate to clamp and position the spliced ​​crossbar and side plates. Then, by opening the welding mechanism on the L-shaped clamp 7, the welding joint between the side plates and the crossbar is welded. After welding, the movable L-shaped clamp 7 is released from clamping the crossbar. At the same time as the positioning welding, the first clamping mechanism on the slotted frame 4 is released from clamping the inner crossbar again, allowing the pushing mechanism on the slotted frame 4 to push... The internal horizontal bars are displaced until one horizontal bar is spliced ​​between two side plates and stops. After stopping, the first clamping mechanism on the channel frame 4 will clamp and fix the remaining horizontal bars again so that the channel frame 4 can drive the remaining horizontal bars to make the next displacement. At this time, the double-axis gantry frame 11 drives the hanging seat 3 to move again. The hanging seat 3 drives the channel frame 4 and L-shaped clamp 7 to the next processing position for feeding and welding. This process is repeated to drive several horizontal bars to be continuously fed and positioned. Welding can be carried out at the same time during the feeding process, thereby improving the efficiency of ladder cable tray welding processing. When the crossbars are being assembled, the pushing mechanism can push the crossbars on the slot frame 4 one by one into the side plate for assembly. That is, by turning on the second servo motor 43, the fourth lead screw 431 can be driven to rotate. The fourth lead screw 431 can drive the threaded push plate 42 to move inside the slot frame 4. The push plate 42 can push the crossbars inside the slot frame 4 to move. The crossbars near the material outlet of the slot frame 4 automatically fall into the side plate with the displacement. At this time, the pushing mechanism stops pushing, so that the second servo motor 43 pushes one crossbar into the side plate each time it runs. The first clamping mechanism on the channel frame 4 clamps and fixes the internal crossbars so that when the channel frame 4 moves, it drives the clamped crossbars to move simultaneously. That is, the second hydraulic cylinder 62 pulls the connected second hanger 61 downward to apply pressure, and the two pressure plates 6 connected to both ends of the second hanger 61 can press downward simultaneously. Since the two pressure plates 6 are set on both sides of the channel frame 4, the two downward pressing pressure plates 6 can cooperate with the channel frame 4 to clamp and fix the internal crossbars, so that when the channel frame 4 moves, it will drive the clamped crossbars to move synchronously. When welding the crossbar and side plate, the protective mechanism can clamp and protect the side plate during welding, preventing it from bending due to stress during welding. When the end of the crossbar is spliced ​​onto the side plate, opening the first hydraulic cylinder 51 can push the grooved clamping plate 5 to move towards the side plate until the grooved clamping plate 5 can fit and press against the side plate. Since the side plate is positioned and embedded inside the grooved seat 2, when the first hydraulic cylinder 51 pushes the grooved clamping plate 5 to press against the side plate, the grooved clamping plate 5, together with the grooved seat 2, can clamp and protect the side plate. Through the grooved structure design, when the grooved clamping plate 5 is pressed against the side plate, there is a welding gap between the groove of the grooved clamping plate 5 and the splice of the crossbar, which facilitates subsequent welding of the splice and allows it to clamp and protect the area around the splice during welding, avoiding stress bending of the side plate caused by the welding force, thus improving the welding quality of the trapezoidal cable tray.

[0033] 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 the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for cable tray production, characterized in that: The system includes a support frame with two movable, parallel slotted seats on top. A movable dual-axis gantry frame is mounted on the support frame, covering the two slotted seats. A hanging bracket is suspended from the dual-axis gantry frame, centered between the two slotted seats. Two movable L-shaped clamps are mounted on one end of the hanging bracket, with slots on the side of each L-shaped clamp near the slotted seat. Welding mechanisms are provided on both L-shaped clamps for welding the trapezoidal cable tray. A slotted frame is suspended from the other end of the hanging bracket, and a pushing mechanism and a first clamping mechanism are provided on the slotted frame. The pushing mechanism is used to move the crossbars inside the slotted frame, and the first clamping mechanism is used to clamp and fix the crossbars inside the slotted frame.

2. The cable tray production welding device according to claim 1, characterized in that: The pushing mechanism includes a push plate that passes through the interior of the slot frame. A second servo motor is fixedly connected to the bottom of the slot frame. A fourth lead screw is fixedly connected to the output shaft of the second servo motor. The fourth lead screw is threadedly engaged with the push plate. A first hanger is fixedly connected to the top of the slot frame and is movably connected to the hanger base.

3. The cable tray production welding device according to claim 2, characterized in that: The first clamping mechanism includes two pressure plates, which are symmetrically arranged on both sides of the slotted frame. The top of the two pressure plates is fixedly connected to a second hanger, which movably passes through the first hanger. The top of the slotted frame is fixedly connected to a second hydraulic cylinder, and the second hanger is fixedly connected to the telescopic end of the second hydraulic cylinder.

4. The cable tray production welding device according to claim 3, characterized in that: Both L-shaped clamps are equipped with protective mechanisms for clamping the side plates for protection. The protective mechanisms include grooved clamps that are sleeved above the crossbars. The grooved clamps are made of graphite material. Two first hydraulic cylinders are fixedly connected to the grooved clamps, with one end of each cylinder fixedly connected to the L-shaped clamp. The first hydraulic cylinders are used to push the grooved clamps to clamp the side plates inside the grooved seat.

5. The cable tray production welding device according to claim 4, characterized in that: The welding mechanism includes a welding torch, a bracket rotatably connected to the welding torch, a linear motor at the bottom of the bracket and fixed to an L-shaped clamp, and a fourth hydraulic rod rotatably connected to the top of the bracket, with the telescopic end of the fourth hydraulic rod rotatably connected to the welding torch.

6. The cable tray production welding device according to claim 5, characterized in that: The hanger is provided with a first adjustment mechanism, which is used to adjust the distance between the slotted frame and the L-shaped clamp. The first adjustment mechanism includes a first servo motor, which is fixedly connected to the hanger. The output shaft of the first servo motor is fixedly connected to a third lead screw, which is threadedly engaged with the first hanger.

7. The cable tray production welding device according to claim 1, characterized in that: The hanger is equipped with a second adjustment mechanism, which is used to drive the displacement of the two L-shaped clamps. The second adjustment mechanism includes a second dual-axis motor and two movable seats. The two movable seats are symmetrically movable on the hanger. The bottom of each of the two movable seats is fixedly connected to a third hydraulic cylinder. The two L-shaped clamps are respectively fixed to the telescopic ends of the two third hydraulic cylinders. The second dual-axis motor is fixedly connected to the hanger and is centrally located between the two movable seats. The output shafts at both ends of the second dual-axis motor are fixedly connected to second lead screws. The two second lead screws are threadedly engaged with the two movable seats respectively.

8. The cable tray production welding device according to claim 7, characterized in that: Both ends of the slotted seat are provided with positioning mechanisms. The positioning mechanisms are used to position the welded parts on the slotted seat. The positioning mechanisms include clamping rods, one end of which is fixedly connected to a clamping block, and the other end of which is fixedly connected to a spring.

9. A cable tray production welding device according to claim 8, characterized in that: A slide rod is provided on one side of the slotted seat, and a movable seat is movably connected to the slide rod. A positioning mechanism on the other end of the slotted seat is connected to the movable seat.

10. A cable tray production welding device according to claim 1, characterized in that: Both ends of the top of the support frame are fixedly connected to a first dual-axis motor, and both ends of the output shaft of the first dual-axis motor are fixedly connected to a first lead screw, which is threaded into the slotted seat.

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