An auxiliary device for fence welding and processing

Abstract

The present invention discloses an auxiliary device for fence welding and processing, belonging to the technical field of fence processing. An auxiliary device for fence welding and processing includes a U-shaped bracket. Support turntables are rotatably provided at both ends of the U-shaped bracket. Column clamping components for clamping the middle columns of the fence are provided on one side of the two support turntables close to each other. A vertical rod clamping component is connected between the two support turntables. A number of groups of first pneumatic grippers for clamping the vertical rods in the fence are arranged on the vertical rod clamping component. A number of cross beam clamping components are symmetrically provided at both ends of the vertical rod clamping component. A second pneumatic gripper for clamping the cross beams in the fence is connected to the outer end of the cross beam clamping component. An angle adjustment component is provided between the U-shaped bracket and the support turntable, having the advantages of equal-spacing adjustment, adaptively stable clamping, comprehensive welding, angle adjustment, reliable structure, convenient operation and simplicity and practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of fence processing, and more particularly to an auxiliary device for welding and processing fences. Background Art

[0002] As an important tool for humans to transform the environment, fences balance the requirements of safety, function, and aesthetics. Their design needs to comprehensively consider legal, environmental, and technical factors, and select materials, structures, and intelligent levels according to specific scenarios. Fences are generally made of wood, metal, stone, or plastic; among them, metal fences generally include columns on both sides, crossbeams above and below, and several vertical bars in the middle.

[0003] During the welding process of metal fences, workers usually first position one of the components, then hold another component with one hand, and use a welding torch with the other hand to spot-weld the contact points of the two components. After spot-welding all the components, then carry out full welding. This welding method has low precision. During the electric welding process, it is impossible to ensure that the held component is in a stable state. During the spot-welding process, the component may shake, affecting the welding precision of the fence; moreover, in different usage scenarios, the distribution spacing between adjacent two vertical bars is different, and this way of holding components cannot accurately adjust the spacing between adjacent two vertical bars, reducing the effect and aesthetics of the welded fence.

[0004] Therefore, it is necessary to provide an auxiliary device for welding and processing fences to solve the above problems. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the embodiments of the present invention is to provide an auxiliary device for welding and processing fences to solve the problems in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An auxiliary device for welding and processing fences includes a U-shaped bracket, and support turntables are rotatably provided at both ends of the U-shaped bracket. It further includes:

[0008] A column clamping assembly for clamping the columns in the fence, provided on one side where the two support turntables are close to each other;

[0009] A vertical bar clamping assembly connected between the two support turntables, and a number of first pneumatic grippers for clamping the vertical bars in the fence are provided on the vertical bar clamping assembly;

[0010] A crossbeam clamping assembly, with several provided and symmetrically arranged at both ends of the vertical bar clamping assembly, and a second pneumatic gripper for clamping the crossbeams in the fence is connected to the outer end of the crossbeam clamping assembly;

[0011] and an angle adjustment component, which is arranged between the U-shaped bracket and the support turntable.

[0012] As a further solution of the present invention, the column clamping component includes a plurality of support cross bars arranged on the side of the support turntable close to each other. One end of the support cross bar far from the support turntable is connected by an end plate. A first movable clamping plate and a second movable clamping plate are respectively slidably arranged on the plurality of support cross bars and cooperate with each other. A first spring sleeved outside the support cross bar is connected between the end plate and the first movable clamping plate. An electric cylinder connected to the second movable clamping plate is installed on the support turntable.

[0013] As a further solution of the present invention, the vertical rod clamping component includes a support rotating rod fixedly connected between the two support turntables. Chutes are symmetrically arranged at both ends of the support rotating rod. A fixed seat is fixedly arranged in the middle of the chute. A plurality of sliding seats symmetrically distributed about the fixed seat are movably sleeved on the support rotating rod. The sliding seats are slidably matched with the chutes. Connecting frames are fixedly installed on the fixed seat and the plurality of sliding seats. Movable sliding plates are respectively slidably arranged at both ends of the connecting frame. One end of the movable sliding plate far from each other is connected to the corresponding first pneumatic claw. A spacing adjustment module is arranged between the connecting frame and the support turntable.

[0014] As a further solution of the present invention, the spacing adjustment module includes a support seat fixedly arranged at the bottom of the fixed seat and a threaded seat fixedly arranged at the bottom of the sliding seat far from the fixed seat. A screw rod is rotatably connected between the support seat and the support turntable. The screw rod is threadedly connected to the threaded seat. The screw rod is connected to a first adjustment motor installed on the support turntable. Guide grooves are symmetrically arranged on one side of the connecting frame close to the support rotating rod. A first connecting column and a second connecting column respectively connected to the corresponding movable sliding plate are slidably arranged in the two guide grooves. The first connecting column on the connecting frame is movably connected to the second connecting column on the adjacent connecting frame through a first hinge plate. The second connecting column on the connecting frame is movably connected to the first connecting column on the adjacent connecting frame through a second hinge plate. The first hinge plate and the second hinge plate between the two connecting frames are rotatably connected through a pin shaft.

[0015] As a further solution of the present invention, the cross beam clamping component includes two groups of side ears symmetrically arranged at one end of the movable sliding plate close to the first pneumatic claw. An activity frame is movably arranged between two adjacent movable sliding plates. Both side walls of the activity frame are rotatably connected to the side ears on the movable sliding plates on the corresponding side through a third hinge plate. A sliding support rod penetrates and is slidably arranged on the activity frame. A retaining ring is connected to one end of the sliding support rod close to the support rotating rod. The other end of the sliding support rod is connected to a second pneumatic claw. A plurality of limiting holes are distributed on the sliding support rod. A connecting groove is arranged on the upper surface of the activity frame. A dial plate corresponding to the connecting groove is rotatably arranged on the activity frame. A limiting nail passing through the connecting groove and movably connected to the limiting hole is arranged at one end of the dial plate. A second spring is connected between the other end of the dial plate and the upper surface of the activity frame.

[0016] As a further solution of the present invention, the angle adjustment assembly includes a worm gear ring provided on the side wall of the support turntable away from the vertical rod clamping assembly. A worm gear meshing with the worm gear ring is rotatably provided on the side wall of the U-shaped bracket, and the worm gear is connected to a second adjustment motor installed on the U-shaped bracket.

[0017] As a further solution of the present invention, a plurality of long slots are opened at the bottom of the U-shaped bracket.

[0018] As a further solution of the present invention, a plurality of support crossbars are horizontally arranged on the support turntable.

[0019] As a further solution of the present invention, the first movable clamping plate is set as an L-shaped clamping plate, and the protruding end is located at one end of the first movable clamping plate away from the support crossbar.

[0020] As a further solution of the present invention, the length of the first connecting column is the same as the length of the second connecting column, and the connecting lines of a plurality of pin shafts and the axis of the support rotating rod are in the same vertical plane.

[0021] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0022] 1. In the present invention, the column is horizontally placed on a plurality of support crossbars and is located between the first movable clamping plate and the second movable clamping plate. The first movable clamping plate clamps the column by cooperating with the second movable clamping plate. According to the actual spacing requirements between the two columns, the electric cylinder extends towards the middle of the U-shaped bracket and pushes the second movable clamping plate away from the support turntable, so as to adjust the spacing between the two second movable clamping plates, and can meet the welding requirements of columns with different spacings;

[0023] 2. In the present invention, through the vertical rod clamping assembly, the spacing between adjacent two connecting frames can be adaptively adjusted according to the actual length of the vertical rod. During the movement of the connecting frames, the spacing between adjacent two connecting frames always remains the same. At the same time, the movable sliding plates at both ends of the connecting frames extend and contract synchronously, and it is ensured that there is a certain spacing between the clamping position between the first pneumatic claw and the vertical rod and the end of the vertical rod, which can leave enough operating space for the welding between the vertical rod and the crossbeam. Moreover, by adjusting the clamping position, the clamping stability of the vertical rod can be enhanced, avoiding the problem that the clamping positions at both ends of the vertical rod are too close to the middle of the vertical rod and unable to stably support the end of the vertical rod, and solving the problem that the end of the vertical rod is prone to shaking during the welding process;

[0024] 3. In the present invention, through the crossbeam clamping assembly, according to the shape of the crossbeam, the position of the corresponding second pneumatic gripper is adjusted, so as to perform adaptive clamping treatment on crossbeams of different shapes, improving the applicability of the device. At the same time, through the third hinge plates rotatably connected to both sides of the movable frame, it can be ensured that the movable frame is always located in the middle of two adjacent movable slides, so that the second pneumatic gripper can be located at the middle of the welding point between the adjacent vertical rod and the crossbeam, leaving enough operating space for the welding between the vertical rod and the crossbeam, and avoiding the situation that the second pneumatic gripper is too close to the welding point and unable to perform comprehensive welding treatment on the welding point;

[0025] 4. In the present invention, through the angle adjustment assembly, the fence can be flipped, facilitating the staff to perform comprehensive welding treatment on it, avoiding the low efficiency of manually flipping the fence and reducing the work burden of the staff.

[0026] To more clearly elaborate the structural features and functions of the present invention, the following will combine the attached drawings with specific embodiments to elaborate on the present invention in detail. Description of the Drawings

[0027] Figure 1 It is a three-dimensional view of the auxiliary device for fence welding processing in the invention embodiment.

[0028] Figure 2 It is a structural schematic diagram of the side column clamping assembly in the invention embodiment.

[0029] Figure 3 It is a structural schematic diagram of the column clamping assembly in the invention embodiment.

[0030] Figure 4 It is a structural schematic diagram of the first hinge plate in the invention embodiment.

[0031] Figure 5 It is a structural schematic diagram of the crossbeam clamping assembly in the invention embodiment.

[0032] Figure 6 It is a cross-sectional view of the movable frame in the invention embodiment.

[0033] Figure 7 It is a structural schematic diagram of the angle adjustment assembly in the invention embodiment.

[0034] Reference numerals: 1, U-shaped bracket;

[0035] 2, support turntable;

[0036] 3, column clamping assembly; 301, support crossbar; 302, end plate; 303, first spring; 304, first movable clamping plate; 305, second movable clamping plate; 306, electric cylinder;

[0037] 4. Vertical rod clamping assembly; 401. Support rotating rod; 402. Chute; 403. Fixed seat; 404. Sliding seat; 405. Connecting frame; 406. Movable slide plate; 407. Support; 408. Screw rod; 409. Threaded seat; 410. First adjustment motor; 411. Guide groove; 412. First connecting column; 413. Second connecting column; 414. First hinge plate; 415. Second hinge plate; 416. Pin shaft;

[0038] 5. First pneumatic gripper;

[0039] 6. Cross beam clamping assembly; 601. Side ear; 602. Third hinge plate; 603. Movable frame; 604. Sliding support rod; 605. Retaining ring; 606. Limit hole; 607. Connecting groove; 608. Pusher plate; 609. Limit pin; 610. Second spring;

[0040] 7. Second pneumatic gripper;

[0041] 8. Angle adjustment assembly; 801. Worm gear ring; 802. Worm; 803. Second adjustment motor;

[0042] 9. Fence. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0045] In an embodiment of the present invention, refer to Figure 1 , an auxiliary device for welding and processing a fence, including a U-shaped bracket 1. Support rotating discs 2 are rotatably provided at both ends of the U-shaped bracket 1. Column clamping assemblies 3 for clamping the columns in the fence 9 are provided on one side of the two support rotating discs 2 close to each other. A vertical rod clamping assembly 4 is connected between the two support rotating discs 2. A plurality of groups of first pneumatic grippers 5 for clamping the vertical rods in the fence 9 are arranged on the vertical rod clamping assembly 4. A plurality of cross beam clamping assemblies 6 are symmetrically provided at both ends of the vertical rod clamping assembly 4. A second pneumatic gripper 7 for clamping the cross beams in the fence 9 is connected to the outer end of the cross beam clamping assembly 6. An angle adjustment assembly 8 is provided between the U-shaped bracket 1 and the support rotating disc 2.

[0046] In this embodiment, through the vertical rod clamping assembly 4, the equal-spacing adjustment of several groups of first pneumatic grippers 5 can be carried out, which can meet the clamping requirements of vertical rods with different spacings. Through several crossbeam clamping assemblies 6, multiple clamping treatments can be performed on two crossbeams, enabling the abutment between the two ends of the vertical rod and the corresponding crossbeam. At the same time, the adaptive clamping of different positions of the special-shaped crossbeam can be realized. Through the column clamping assembly 3 arranged on the support turntable 2, the column can be clamped, and the abutment between the end of the column and the crossbeam can be achieved, facilitating the staff to quickly weld the abutting point, avoiding the cumbersome operation of pre-welding and then overall welding later. At the same time, through the clamping operations on the vertical rod, crossbeam and column, the problem of poor welding effect caused by the easy shaking of manual holding of the abutment is avoided, improving the welding precision and efficiency. Through the angle adjustment assembly 8, the angle can be flipped after the single-sided welding of the fence 9 is completed, facilitating the full welding of the fence 9. At the same time, the welding requirements at different angles can be met, having the effects of equal-spacing adjustment, adaptive and stable clamping, full welding, angle adjustment, reliable structure, convenient operation and simple and practicality;

[0047] Among them, a plurality of long slots are opened at the bottom of the U-shaped bracket 1, facilitating the installation of moving wheels at the bottom of the U-shaped bracket 1 to meet the requirements of different displacements of the device.

[0048] In an embodiment of the present invention, refer to Figure 1 - Figure 2 , the column clamping assembly 3 includes several support crossbars 301 arranged on the mutually close sides of the support turntable 2. One end of the support crossbar 301 away from the support turntable 2 is connected through an end plate 302. A first movable clamping plate 304 and a second movable clamping plate 305 that cooperate with each other are respectively slidably arranged on several support crossbars 301. A first spring 303 sleeved outside the support crossbar 301 is connected between the end plate 302 and the first movable clamping plate 304. An electric cylinder 306 connected to the second movable clamping plate 305 is installed on the support turntable 2.

[0049] In this embodiment, in the initial state, the second movable clamping plate 305 is close to the support turntable 2, the first movable clamping plate 304 is in contact with the second movable clamping plate 305, and the first spring 303 is in its original length. When it is necessary to clamp the upright column of the fence 9, the first movable clamping plate 304 is pushed in a direction away from the support turntable 2, the first spring 303 is stressed and contracts. The upright column is horizontally placed on a plurality of support crossbars 301 and is located between the first movable clamping plate 304 and the second movable clamping plate 305. Then, the first movable clamping plate 304 is released, the first spring 303 extends and pushes the first movable clamping plate 304 to approach the support turntable 2, and the first movable clamping plate 304 clamps the upright column in cooperation with the second movable clamping plate 305. According to the actual spacing requirement between two upright columns, the electric cylinder 306 extends towards the middle of the U-shaped bracket 1 and pushes the second movable clamping plate 305 away from the support turntable 2, so as to adjust the spacing between the two second movable clamping plates 305, and can meet the welding requirements of upright columns with different spacings;

[0050] Among them, a plurality of support crossbars 301 are horizontally arranged on the support turntable 2 and can stably support the upright column. At least 3 support crossbars 301 are provided. The first movable clamping plate 304 is an L-shaped clamping plate and the protruding end is located at one end of the first movable clamping plate 304 away from the support crossbar 301. Through the cooperation of the first movable clamping plate 304 and the second movable clamping plate 305, the left and right sides of the upright column can be clamped. Through the cooperation of the support crossbar 301 and the protruding end of the first movable clamping plate 304, the upper and lower sides of the upright column can be clamped, improving the stability of the upright column clamping and avoiding the phenomenon that the upright column slides after being flipped.

[0051] In an embodiment of the present invention, refer to Figure 1 - Figure 4 , the vertical rod clamping assembly 4 includes a support rod 401 fixedly connected between two support turntables 2. Symmetrical sliding grooves 402 are provided at both ends of the support rod 401. A fixed seat 403 is fixedly provided in the middle of the sliding groove 402. A plurality of sliding seats 404 symmetrically distributed about the fixed seat 403 are movably sleeved on the support rod 401. The sliding seats 404 are slidably matched with the sliding grooves 402. Connecting frames 405 are fixedly installed on the fixed seat 403 and a plurality of sliding seats 404. Movable sliding plates 406 are respectively slidably provided at both ends of the connecting frame 405. One end of the movable sliding plates 406 away from each other is connected to the corresponding first pneumatic gripper 5. A spacing adjustment module is provided between the connecting frame 405 and the support turntable 2;

[0052] The spacing adjustment module includes a support 407 fixedly arranged at the bottom of the fixed seat 403 and a threaded seat 409 fixedly arranged at the bottom of the sliding seat 404 away from the fixed seat 403. A screw rod 408 is rotatably connected between the support 407 and the support turntable 2. The screw rod 408 is threadedly connected to the threaded seat 409. The screw rod 408 is connected to a first adjustment motor 410 installed on the support turntable 2. On one side of the connection frame 405 close to the support rod 401, guide grooves 411 are symmetrically arranged. A first connecting column 412 and a second connecting column 413 connected to the corresponding movable slide plate 406 are respectively slidably arranged in the two guide grooves 411. The first connecting column 412 on the connection frame 405 is movably connected to the second connecting column 413 on the adjacent connection frame 405 through a first hinge plate 414. The second connecting column 413 on the connection frame 405 is movably connected to the first connecting column 412 on the adjacent connection frame 405 through a second hinge plate 415. A pin shaft 416 is rotatably connected between the first hinge plate 414 and the second hinge plate 415 located between the two connection frames 405.

[0053] In this embodiment, in the initial state, the spacing between adjacent connection frames 405 is in a suitable position. A plurality of vertical rods are sequentially placed on the connection frames 405. The two ends of the vertical rods can be clamped by the first pneumatic grippers 5 located at both ends of the connection frames 405, facilitating subsequent welding treatment.

[0054] When the length of the vertical rod in the fence 9 is relatively long, since the increase in the length of the vertical rod will reduce its flexural rigidity and it is prone to bending under wind pressure or external forces, it is necessary to disperse the load by reducing the welding spacing to improve the overall lateral force resistance ability. Therefore, it is necessary to reduce the spacing between two adjacent connection frames 405. Specifically, the first adjustment motor 410 drives the screw rod 408 to rotate clockwise. The screw rod 408 drives the sliding seat 404 located on the outside to approach the fixed seat 403 by means of threaded connection with the threaded seat 409 and sliding fit of the sliding seat 404 with the sliding groove 402. The sliding seat 404 drives the movable sliding plates 406 at both ends thereof to move synchronously. Through the rotational cooperation of the first hinge plate 414 and the second hinge plate 415 arranged crosswise and the sliding fit of the first connecting column 412 and the second connecting column 413 with the guide groove 411, several connection frames 405 can be contracted towards the fixed seat 403. Moreover, during the movement of the connection frames 405, the spacing between two adjacent connection frames 405 always remains consistent. At the same time, since the spacing between two adjacent connection frames 405 decreases, the included angle between the first hinge plate 414 and the second hinge plate 415 corresponding to the same connection frame 405 becomes larger. The outer ends of the first hinge plate 414 and the second hinge plate 415 respectively push the corresponding movable sliding plates 406 to move towards the outer ends of the connection frame 405 through the first connecting column 412 and the second connecting column 413. The movable sliding plates 406 drive the first pneumatic grippers 5 to move synchronously, realizing the mutual separation between two first pneumatic grippers 5 symmetrically distributed with respect to the connection frame 405. When the movable sliding plates 406 extend outward to an appropriate position, the first adjustment motor 410 stops working. Through several symmetrically distributed first pneumatic grippers 5, the two ends of several long vertical rods can be clamped, improving the applicability of the device;

[0055] When the length of the vertical rod in the fence 9 is short, since the short vertical rod has strong bending resistance, the welding spacing can be increased. Therefore, the spacing between two adjacent connecting frames 405 can be increased. Specifically, the first adjusting motor 410 drives the screw rod 408 to rotate counterclockwise. The screw rod 408 drives the outer sliding seat 404 to move away from the fixed seat 403 by means of threaded connection with the threaded seat 409 and sliding cooperation between the sliding seat 404 and the sliding groove 402. The sliding seat 404 drives the movable sliding plates 406 at both ends thereof to move synchronously. Through the rotational cooperation of the first hinge plate 414 and the second hinge plate 415 arranged crosswise and the sliding cooperation between the first connecting column 412 and the second connecting column 413 and the guiding groove 411, a plurality of connecting frames 405 move away from the fixed seat 403. Moreover, during the movement of the connecting frame 405, the spacing between two adjacent connecting frames 405 always remains consistent. At the same time, since the spacing between two adjacent connecting frames 405 increases, the angle between the first hinge plate 414 and the second hinge plate 415 corresponding to the same connecting frame 405 becomes smaller. The outer ends of the first hinge plate 414 and the second hinge plate 415 respectively push the corresponding movable sliding plates 406 to move towards the inside of the connecting frame 405 through the first connecting column 412 and the second connecting column 413. The movable sliding plates 406 drive the first pneumatic grippers 5 to move synchronously, realizing the mutual approach between two first pneumatic grippers 5 symmetrically distributed with respect to the connecting frame 405. When the movable sliding plates 406 contract to a suitable position, the first adjusting motor 410 stops working. Through a plurality of symmetrically distributed first pneumatic grippers 5, the two ends of a plurality of short vertical rods can be clamped;

[0056] Wherein, the length of the first connecting column 412 is the same as the length of the second connecting column 413. The connecting lines of a plurality of pin shafts 416 and the axis of the supporting rotating rod 401 are in the same vertical plane, which can ensure the synchronous extension and contraction of the movable sliding plates 406 at both ends of the connecting frame 405. At the same time, through the movement of the first pneumatic gripper 5, the adjustment of the clamping position between the first pneumatic gripper 5 and the vertical rod can be realized, and it is ensured that there is a certain spacing between the clamping position between the first pneumatic gripper 5 and the vertical rod and the end of the vertical rod, which can leave enough operating space for the welding position between the vertical rod and the cross beam. Moreover, through the adjustment of the clamping position, the clamping stability of the vertical rod can be enhanced, avoiding the problem that the clamping positions at both ends of the vertical rod are too close to the middle of the vertical rod and unable to stably support the end of the vertical rod, and solving the problem that the end of the vertical rod is prone to shaking during the welding process.

[0057] In an embodiment of the present invention, refer to Figure 1 - Figure 6, the crossbeam clamping assembly 6 includes two groups of side ears 601 symmetrically arranged at one end of the movable slide plate 406 close to the first pneumatic jaw 5. An activity frame 603 is movably arranged between two adjacent movable slide plates 406. Both side walls of the activity frame 603 are respectively rotatably connected to the side ears 601 on the movable slide plate 406 on the corresponding side through a third hinge plate 602. A sliding support rod 604 penetrates and slides on the activity frame 603. One end of the sliding support rod 604 close to the support rotating rod 401 is connected with a retaining ring 605. The other end of the sliding support rod 604 is connected with the second pneumatic jaw 7. A number of limiting holes 606 are distributed on the sliding support rod 604. A connecting groove 607 is arranged on the upper surface of the activity frame 603. A dial plate 608 corresponding to the connecting groove 607 is rotatably arranged on the activity frame 603. One end of the dial plate 608 is provided with a limiting nail 609 passing through the connecting groove 607 and movably connected with the limiting hole 606. A second spring 610 is connected between the other end of the dial plate 608 and the upper surface of the activity frame 603.

[0058] In this embodiment, in the initial state, the included angle between the third hinge plates 602 on both sides of the activity frame 603 is an obtuse angle. At this time, the distance between two adjacent movable slide plates 406 is at an appropriate distance. The limiting nail 609 is connected with the limiting hole 606. Through the first pneumatic jaw 5, a vertical rod with a suitable length can be clamped. According to the shape of the crossbeam, the position of the corresponding second pneumatic jaw 7 is adjusted. Specifically, press down one end of the dial plate 608 close to the second spring 610. The second spring 610 is stressed and contracts. The dial plate 608 drives the limiting nail 609 to rotate upward, releasing the connection between the limiting nail 609 and the limiting hole 606. The position of the second pneumatic jaw 7 is adjusted by pulling the sliding support rod 604 outward or pushing the sliding support rod 604 inward, so that the second pneumatic jaw 7 can clamp the corresponding position of the crossbeam. Then, release the dial plate 608. The second spring 610 elongates upward and pushes one end of the dial plate 608 close to the second spring 610 to rotate upward. The dial plate 608 drives the limiting nail 609 to rotate downward, so that the limiting nail 609 is connected with the corresponding limiting hole 606, realizing the fixation of the position of the sliding support rod 604, and thus realizing the fixation of the position of the second pneumatic jaw 7, which can adaptively clamp crossbeams of different shapes and improve the applicability of the device;

[0059] Meanwhile, according to the vertical rods of different lengths, the distance between two adjacent movable slides 406 will be adjusted correspondingly. When clamping the long vertical rod, the distance between two adjacent movable slides 406 decreases, and the included angle between the third hinge plates 602 on both sides of the movable frame 603 decreases, causing the movable frame 603 to move away from the support rotating rod 401, so that the sliding support rod 604 and the second pneumatic gripper 7 can move outward synchronously; when clamping the short vertical rod, the distance between two adjacent movable slides 406 increases, and the included angle between the third hinge plates 602 on both sides of the movable frame 603 increases, causing the movable frame 603 to approach the support rotating rod 401, so that the sliding support rod 604 and the second pneumatic gripper 7 can move inward synchronously; through the adaptive movement of the second pneumatic gripper 7, the distance between the first pneumatic gripper 5 and the second pneumatic gripper 7 can be adjusted to meet the abutting requirements of the vertical rod and the cross beam at different positions;

[0060] In addition, through the third hinge plates 602 rotatably connected to both sides of the movable frame 603, it can be ensured that the movable frame 603 is always located in the middle of two adjacent movable slides 406, so that the second pneumatic gripper 7 can be located in the middle of the welding point between the adjacent vertical rod and the cross beam, leaving enough operating space for the welding between the vertical rod and the cross beam, and avoiding the situation that the second pneumatic gripper 7 is too close to the welding point to perform a comprehensive welding treatment on the welding point.

[0061] In an embodiment of the present invention, refer to Figure 1 - Figure 7 , the angle adjustment assembly 8 includes a worm gear ring 801 provided on the side wall of the support turntable 2 away from the vertical rod clamping assembly 4, a worm 802 rotatably provided on the side wall of the U-shaped bracket 1 and meshing with the worm gear ring 801, and the worm 802 is connected to a second adjustment motor 803 installed on the U-shaped bracket 1.

[0062] In this embodiment, in the initial state, the connection frame 405 is in a horizontal state and is located above the support rotating rod 401. In this state, the clamping and welding of the column, the cross beam and several vertical rods can be realized; after the welding on the upper surface of the fence 9 is completed, the second adjustment motor 803 drives the worm 802 to rotate, and the worm 802 drives the support rotating rod 401 to rotate synchronously by meshing with the second adjustment motor 803 and the rotational cooperation between the support turntable 2 and the U-shaped bracket 1, so that the support rotating rod 401 rotates 180°. At this time, the connection frame 405 is in a horizontal state and the connection frame 405 is located below the support rotating rod 401. In this state, the lower surface of the fence 9 is turned to the upper side, which is convenient for the staff to perform welding treatment on it, avoiding the low efficiency of manually turning the fence 9 and reducing the work burden of the staff.

[0063] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An auxiliary device for fence welding and processing, including a U-shaped bracket, characterized in that, Both ends of the U-shaped bracket are rotatably provided with support turntables, and further include: A column clamping assembly for clamping the columns in the fence, which is arranged on one side where the two support turntables are close to each other; A vertical rod clamping assembly connected between the two support turntables. A number of groups of first pneumatic jaws for clamping the vertical rods in the fence are arranged on the vertical rod clamping assembly; The vertical rod clamping assembly includes a support rotating rod fixedly connected between the two support turntables. Chutes are symmetrically arranged at both ends of the support rotating rod. A fixed seat is fixedly arranged in the middle of the chute. A number of sliding seats symmetrically distributed about the fixed seat are movably sleeved on the support rotating rod. The sliding seats are in sliding fit with the chutes. Connecting frames are fixedly installed on the fixed seat and the several sliding seats. Movable sliding plates are respectively slidably arranged at both ends of the connecting frame. One end of the movable sliding plates away from each other is connected to the corresponding first pneumatic jaw. A spacing adjustment module is arranged between the connecting frame and the support turntable; The spacing adjustment module includes a support seat fixedly arranged at the bottom of the fixed seat and a threaded seat fixedly arranged at the bottom of the sliding seat away from the fixed seat. A screw rod is rotatably connected between the support seat and the support turntable. The screw rod is in threaded connection with the threaded seat. The screw rod is connected to a first adjustment motor installed on the support turntable. Guide grooves are symmetrically arranged on one side of the connecting frame close to the support rotating rod. A first connecting column and a second connecting column connected to the corresponding movable sliding plate are respectively slidably arranged in the two guide grooves. The first connecting column on the connecting frame is movably connected to the second connecting column on the adjacent connecting frame through a first hinge plate. The second connecting column on the connecting frame is movably connected to the first connecting column on the adjacent connecting frame through a second hinge plate. A pin shaft is rotatably connected between the first hinge plate and the second hinge plate located between the two connecting frames; A cross beam clamping assembly, which is provided with several and symmetrically arranged at both ends of the vertical rod clamping assembly. The outer end of the cross beam clamping assembly is connected with a second pneumatic jaw for clamping the cross beam in the fence; The cross beam clamping assembly includes two groups of side ears symmetrically arranged at one end of the movable sliding plate close to the first pneumatic jaw. An activity frame is movably arranged between two adjacent movable sliding plates. The two side walls of the activity frame are respectively rotatably connected to the side ears on the movable sliding plate on the corresponding side through a third hinge plate. A sliding support rod penetrates and slides through the activity frame. One end of the sliding support rod close to the support rotating rod is connected with a retaining ring. The other end of the sliding support rod is connected with the second pneumatic jaw. A number of limiting holes are distributed on the sliding support rod. A connecting groove is arranged on the upper surface of the activity frame. A dial plate corresponding to the connecting groove is rotatably arranged on the activity frame. A limiting nail passing through the connecting groove and movably connected with the limiting hole is arranged at one end of the dial plate. A second spring is connected between the other end of the dial plate and the upper surface of the activity frame; And an angle adjustment assembly arranged between the U-shaped bracket and the support turntable.

2. The auxiliary device for fence welding processing according to claim 1, characterized in that, The column clamping assembly includes a number of support cross bars arranged on one side where the support turntables are close to each other. One end of the support cross bar away from the support turntable is connected through an end plate. A first movable clamping plate and a second movable clamping plate that cooperate with each other are respectively slidably arranged on the several support cross bars. A first spring sleeved on the outside of the support cross bar is connected between the end plate and the first movable clamping plate. An electric cylinder connected to the second movable clamping plate is installed on the support turntable.

3. The auxiliary device for the welding and processing of fences according to claim 1, characterized in that, The angle adjustment assembly includes a worm gear ring provided on the side wall of the support turntable away from the vertical rod clamping assembly. A worm that meshes with the worm gear ring is rotatably provided on the side wall of the U-shaped bracket, and the worm is connected to a second adjustment motor mounted on the U-shaped bracket.

4. The auxiliary device for the welding and processing of the fence according to claim 1, characterized in that, A plurality of long slots are formed at the bottom of the U-shaped bracket.

5. The auxiliary device for the welding and processing of fences according to claim 2, wherein, A plurality of support crossbars are horizontally arranged on the support turntable.

6. The auxiliary device for the welding process of the fence according to claim 2, characterized in that, The first movable clamping plate is an L-shaped clamping plate, and the protruding end is located at the end of the first movable clamping plate away from the support crossbar.

7. The auxiliary device for fence welding and processing according to claim 1, characterized in that, The lengths of the first connecting column and the second connecting column are the same, and the connecting lines of a plurality of pin shafts and the axis of the support rotating rod are in the same vertical plane.

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