An error-proof tool for positioning welding of valve blocks

Abstract

The present invention discloses an error-proofing tool for positioning welding of valve blocks, and relates to the technical field of welding equipment manufacturing, comprising a workbench, wherein the top of the workbench is fixedly connected with a controller, the top of the workbench is fixedly connected with a welding box, the top of the welding box is provided with a welder, the top of the workbench is fixedly connected with an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with a slide, the bottom of the slide is slidably connected with a slide seat, the bottom of the slide seat is fixedly connected to the top of the workbench, and the top of the slide is provided with a clamping mechanism, and the clamping effect of the valve block is completed by setting the clamping mechanism, and the valve block is clamped at a high position at the same time, which is conducive to the welding work of the widely distributed and large number of welding points on the outer wall of the valve block, and avoids the problems of long working time, low efficiency and deformation of the valve block due to multiple clamping when performing conventional floor-type clamping welding on the valve block, which requires multiple welding of different surfaces of the valve block and multiple clamping.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment manufacturing, in particular to an error-proof tooling for positioning welding of a valve block. Background Art

[0002] The valve block is used in the electro-hydraulic servo control system. In the TRT device, it is a subsystem of one of the eight systems.

[0003] A mis-proofing tool for positioning welding of a valve block described in a patent application with announcement number CN220128009U relates to the technical field of welding equipment manufacturing, and comprises a workbench, a fixed plate is fixedly provided on the upper side of the workbench, a limit plate A is slidably provided on one side of the fixed plate, a convex groove is provided on one side of the limit plate A, a convex plate is provided on the inner side of the convex groove, a through hole is provided on the lower side of the convex groove, a hydraulic cylinder is fixedly provided on one side of the limit plate A, the hydraulic cylinder can be extended and retracted in the through hole, the shaft end of the hydraulic cylinder is fixedly connected to the convex plate, a U-shaped plate is provided on one side of the limit plate A, and a support plate A is fixedly provided on the upper side of the workbench;

[0004] When the valve block is welded after being clamped, since there are many welding points on the surface of the valve block, it is necessary to weld different points multiple times. After the valve block is clamped and cannot be moved, different points are in different positions. When the workers weld more points, they will have difficulty in operation and limited vision, which can easily lead to welding errors due to operation and vision problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an error-proof tooling for positioning welding of a valve block, thereby achieving the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an error-proofing tool for positioning welding of a valve block, comprising a workbench, a controller is fixedly connected to the top of the workbench, a welding box is fixedly connected to the top of the workbench, a welder is arranged on the top of the welding box, an electric telescopic rod is fixedly connected to the top of the workbench, a slide is fixedly connected to one end of the electric telescopic rod, a slide is slidably connected to the bottom of the slide, the bottom of the slide is fixedly connected to the top of the workbench, and a clamping mechanism is arranged on the top of the slide;

[0007] The clamping mechanism comprises:

[0008] A vertical plate, wherein the inner wall of the vertical plate is slidably connected to a push block through a sliding groove, the outer wall of the push block is slidably connected to a sliding ring, the bottom of the sliding ring is fixedly connected to a fixed block A, the inner wall of the fixed block A is slidably connected to a connecting rod, and the vertical plate is used to support the push block;

[0009] The fixed plate is a circular plate-shaped structure, one side of the fixed plate is fixedly connected with a spring, one end of the spring is fixedly connected to one side of the sliding ring, one side of the fixed plate is fixedly connected to one end of the push block, there are two vertical plates, the inner wall of the vertical plate on the right side is fixedly connected with a fixed clamping plate, and the fixed clamping plate is used to fix and clamp the valve block.

[0010] Preferably, one end of the connecting rod is fixedly connected to one side of the vertical plate, and one end of the connecting rod is fixedly connected to a fixing plate, and the connecting rod is used to fix the fixing plate and the fixing block A.

[0011] Preferably, a sliding rod is fixedly connected to the top of the fixed plate, and one end of the sliding rod passes through the inner wall of the push block and is slidably connected to the inner wall of the push block.

[0012] Preferably, a one-way valve A is provided at one end of the sliding rod, and a one-way valve B is provided at one end of the sliding rod. The one-way valve A and the one-way valve B are connected to the interior of the sliding rod, and the interior of the sliding rod is connected to the inner wall of the push block.

[0013] Preferably, a fixed block B is fixedly connected to the top of the sliding ring, a threaded rod is threadedly connected to the inner wall of the fixed block B, one end of the threaded rod is fixedly connected to a bearing disk, and one side of the bearing disk is rotatably connected to the outer wall of the vertical plate.

[0014] Preferably, the outer wall of the threaded rod is fixedly connected with a turning handle, the one-way valve A and the one-way valve B are valves for one-way air intake, and the outer wall of the push block is provided with a centering calibration.

[0015] Preferably, the centering calibration includes a pressure plate, one end of the push block is rotatably connected to the pressure plate via a bearing, the outer wall of the pressure plate is fixedly connected to a turntable, and the inner wall of the turntable is provided with a scale groove.

[0016] Preferably, a counterweight block is fixedly connected to the outer wall of the turntable, a long board is fixedly connected to one side of the turntable, and a brush strip is fixedly connected to the top of the long board.

[0017] The present invention provides an error-proof tooling for positioning welding of a valve block, which has the following beneficial effects:

[0018] 1. The present invention completes the clamping effect on the valve block by setting a clamping mechanism, and at the same time clamps the valve block at a high position, which is beneficial to the welding work of the welding points that are widely distributed and numerous on the outer wall of the valve block, and avoids the problems of long working time, low efficiency and deformation of the valve block due to multiple clamping when performing conventional floor-type clamping welding on the valve block, which requires multiple welding and multiple clamping of different surfaces of the valve block.

[0019] 2. The present invention sets a clamping mechanism. When the air inside the push block is replenished through the one-way valve B with a smaller diameter, the replenishing speed will be slower due to the small diameter of the one-way valve B, so that the fixed disk and the push block are pulled to the right by the spring to reset slowly. At this time, the staff can hold the valve block with both hands and have more energy and attention to align the two sides of the valve block with the push block on the left and the fixed clamping plate on the right, so that the valve block is clamped more stably and centered. In addition, the clamping method is simple and fast, which is convenient for operation and rapid welding of the valve block.

[0020] 3. The present invention provides a clamping mechanism and utilizes the elastic force of the spring to complete the clamping, which not only avoids the problem that the force of direct clamping by the threaded rod is difficult to control, and is easy to emboss the outer surface of the valve block, but also the problem that the valve block directly falls off when the clamping is loose. The spring is used to push the push block for clamping, so that even if vibration occurs during subsequent welding work and the clamping becomes loose, the spring will continue to release elastic force to pull back the fixed disk and the push block, so that one side of the push block will always be tightly clamped with one side of the valve block, and the threaded rod is rotated to control the movement of the fixed block B and the push block, so that the spring can control the tightening force of the fixed disk more accurately and stably, avoiding operational errors such as excessive or insufficient clamping force.

[0021] 4. The present invention sets a centering calibration mechanism, and the surface of the left side of the fixed clamping plate that clamps the valve block is also a damping bearing disk. Therefore, when the fixed clamping plate and the pressure plate clamp the valve block tightly, the staff can rotate the valve block with a little force, so that after welding, the valve block can still be rotated to a more convenient position on other surfaces to weld the remaining holes again, which is convenient for the clamping effect of the multi-directional welding of the valve block.

[0022] 5. The present invention provides a centering calibration mechanism. After clamping is completed, the valve block can be manually rotated, and then the circular virtual image formed by the corners of the valve block when it rotates can be observed from the right side. The circular virtual image formed when the valve block rotates can be used to correspond to the turntable behind the valve block and the scale grooves on the turntable to determine whether the clamping of the valve block is centered and close to concentric circles. If the center deviates far, the position of the valve block can be adjusted specifically to re-clamp it, so as to facilitate the welding of the valve block during subsequent rotation.

[0023] 6. The present invention provides a centering calibration mechanism. When the valve block is clamped and rotated, it will contact the brush strip below. The brush strip will extend into the hole in the valve block due to its own elastic force, and sweep the hole in the valve block to remove the impurity particles at the position where the hole needs to be welded. When there is a lot of dirt and dust on the surface of the valve block, the long plate and the brush strip below can be driven by rotating the turntable to quickly rotate around the valve block, and the valve block can be cleaned in a surrounding manner using the brush strip to ensure stable welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the vertical plate of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a fixed clamping plate of the present invention;

[0027] Figure 4 The structure diagram of the clamping mechanism of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 5 The structure diagram of the clamping mechanism of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 6 The structure diagram of the clamping mechanism of the present invention is shown in FIG. Figure 3 ;

[0030] Figure 7 For the present invention Figure 2 A magnified image of point A;

[0031] Figure 8 It is a schematic cross-sectional structure diagram of the clamping mechanism of the present invention;

[0032] Fig. 9 The structure diagram of the clamping mechanism of the present invention is shown in FIG. Figure 4 ;

[0033] Fig.10 For the present invention Figure 8 The enlarged view of point B;

[0034] Fig.11 The motion state of the clamping mechanism of the present invention is shown in FIG. Figure 1 ;

[0035] Fig.12 The motion state of the clamping mechanism of the present invention is shown in FIG. Figure 2 ;

[0036] Fig.13 The motion state of the clamping mechanism of the present invention is shown in FIG. Figure 3 ;

[0037] Fig.14 It is a structural schematic diagram of the centering calibration mechanism of the present invention;

[0038] Fig.15 For the present invention Fig.14 Enlarged view of point C.

[0039] In the figure: 1 controller, 2 workbench, 3 clamping mechanism, 301 fixed clamping plate, 302 vertical plate, 303 push block, 304 sliding ring, 305 fixed block A, 306 connecting rod, 307 spring, 308 fixed disk, 309 fixed plate, 310 sliding rod, 311 one-way valve A, 312 one-way valve B, 313 fixed block B, 314 threaded rod, 315 bearing disk, 316 handle, 4 centering calibration mechanism, 401 pressure plate, 402 turntable, 403 scale groove, 404 counterweight block, 405 long board, 406 brush strip, 5 welding box, 6 welder, 7 electric telescopic rod, 8 slide seat, 9 slide table. DETAILED DESCRIPTION

[0040] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: an error-proofing tool for positioning welding of a valve block, comprising a workbench 2, a controller 1 is fixedly connected to the top of the workbench 2, a welding box 5 is fixedly connected to the top of the workbench 2, a welder 6 is arranged on the top of the welding box 5, an electric telescopic rod 7 is fixedly connected to the top of the workbench 2, a slide 9 is fixedly connected to one end of the electric telescopic rod 7, a slide seat 8 is slidably connected to the bottom of the slide 9, the bottom of the slide seat 8 is fixedly connected to the top of the workbench 2, and a clamping mechanism 3 is arranged on the top of the slide 9;

[0041] The clamping mechanism 3 comprises:

[0042] A vertical plate 302, the inner wall of the vertical plate 302 is slidably connected to a push block 303 through a sliding groove, the outer wall of the push block 303 is slidably connected to a sliding ring 304, the bottom of the sliding ring 304 is fixedly connected to a fixed block A305, the inner wall of the fixed block A305 is slidably connected to a connecting rod 306, and the vertical plate 302 is used to support the push block 303;

[0043] The fixed disk 308 is a circular disk-shaped structure. A spring 307 is fixedly connected to one side of the fixed disk 308. One end of the spring 307 is fixedly connected to one side of the sliding ring 304. One side of the fixed disk 308 is fixedly connected to one end of the push block 303. There are two vertical plates 302. The inner wall of the vertical plate 302 on the right side is fixedly connected to a fixed clamping plate 301. The fixed clamping plate 301 is used to play a role in fixing and clamping the valve block.

[0044] When in use, the valve block is placed on the slide 9, and then the welding box 5 is started to complete the welding work of the valve block and the connecting piece by using one end of the welder 6. At the same time, the slide 9 can be pushed to move to different positions on the slide seat 8 by starting the electric telescopic rod 7 to facilitate the placement of the valve block;

[0045] Example 2: Please refer to Figure 1-13On the basis of the first embodiment, the present invention provides a technical solution: one end of the connecting rod 306 is fixedly connected to one side of the vertical plate 302, and one end of the connecting rod 306 is fixedly connected to a fixing plate 309, and the connecting rod 306 is used to fix the fixing plate 309 and the fixing block A305.

[0046] A sliding rod 310 is fixedly connected to the top of the fixed plate 309 , and one end of the sliding rod 310 passes through the inner wall of the push block 303 and is slidably connected to the inner wall of the push block 303 .

[0047] A one-way valve A311 is provided at one end of the sliding rod 310 , and a one-way valve B312 is provided at one end of the sliding rod 310 . The one-way valve A311 and the one-way valve B312 are connected to the interior of the sliding rod 310 , and the interior of the sliding rod 310 is connected to the inner wall of the push block 303 .

[0048] A fixing block B313 is fixedly connected to the top of the sliding ring 304 , a threaded rod 314 is threadedly connected to the inner wall of the fixing block B313 , one end of the threaded rod 314 is fixedly connected to a bearing disk 315 , and one side of the bearing disk 315 is rotatably connected to the outer wall of the vertical plate 302 .

[0049] The outer wall of the threaded rod 314 is fixedly connected with a turning handle 316, the one-way valve A311 and the one-way valve B312 are one-way air intake valves, and the outer wall of the push block 303 is provided with a centering calibration mechanism 4;

[0050] When the valve block is placed on the slide 9, the valve block is placed between the two vertical plates 302, and then one hand grabs the fixed plate 308 and pulls it to the left, so that the fixed plate 308 slides to the left on the sliding rod 310, and pulls the spring 307 to deform it. Once the fixed plate 308 is pulled, it moves to the left with the push block 303 on the right side for clamping, and the push block 303 slides on the inner wall of the vertical plate 302 through the sliding groove, thereby limiting the push block 303, so that the push block 303 cannot rotate and can only move horizontally in a straight line;

[0051] After the push block 303 moves to the left, the space between the right side of the push block 303 and the left side of the fixed clamping plate 301 is expanded. At this time, the valve block to be clamped is placed between the fixed clamping plate 301 and the push block 303, and then the hand holding the fixed plate 308 is released. The fixed plate 308 is automatically pulled back to its original position by the elastic tension of the spring 307, thereby squeezing and clamping the left and right sides of the valve block to complete the clamping of the valve block. At the same time, the valve block is clamped at a high position, which is conducive to the welding of the widely distributed welding points on the outer wall of the valve block, avoiding the need to weld multiple times on different surfaces of the valve block and multiple clamping during conventional floor-standing clamping welding of the valve block, resulting in long working time, low efficiency, and deformation of the valve block due to multiple clamping.

[0052] When the fixed disk 308 is released, the fixed disk 308 will not be quickly pulled back by the spring 307 to drive the push block 303 to clamp the valve block. Since the sliding rod 310 is located in the inner wall of the fixed disk 308 and the push block 303 and slides in the inner wall of the push block 303, and the inner wall of the sliding rod 310 is provided with a one-way valve B312 and a one-way valve A311, when the fixed disk 308 is pulled to move to the left, the sliding rod 310 slides to the right in the inner wall of the push block 303 relative to the push block 303 and squeezes the air in the sliding space of the inner wall of the push block 303. The air is squeezed and discharged outward through the one-way valve A311. When the fixed disk 308 is released and the fixed disk 308 is pulled to the right and reset by the elastic force of the spring 307, the push block 303 and the sliding rod 310 begin to move away from each other, and the air in the sliding space of the inner wall of the push block 303 The air is replenished through the one-way valve B312 in the sliding rod 310. Since the one-way valve B312 and the one-way valve A311 are both one-way air intakes and cannot flow back, when the fixed disk 308 is loosened and the fixed disk 308 moves to the left away from the sliding rod 310, the air inside the push block 303 is replenished through the one-way valve B312 with a smaller diameter. However, due to the small diameter of the one-way valve B312, the replenishment speed is slower, so that the fixed disk 308 and the push block 303 are pulled to the right by the spring 307 to reset more slowly. At this time, the staff can hold the valve block with both hands, and have more energy and attention to align the two sides of the valve block with the push block 303 on the left and the fixed clamping plate 301 on the right, so that the clamping of the valve block is more stable and centered, and the clamping method is simple and fast, which is convenient for operation and rapid welding of the valve block.

[0053] When clamping the valve block, the turning handle 316 and the threaded rod 314 can be rotated to drive the fixed block B313, the sliding ring 304 and the spring 307 to move to a specified position on the outer wall of the push block 303. This is because the clamping force of the push block 303 on the valve block depends on the force of the spring 307 pulling the fixed disk 308 back. By adjusting the sliding ring 304 so that the sliding ring 304 is away from the fixed disk 308, the spring 307 has a greater elastic force pulling the fixed disk 308, thereby making the fixed disk 308 and the push block 303 clamp the valve block more strongly. This method can flexibly adjust the clamping force of the push block 303 on the valve block, and at the same time use the elastic force of the spring 307 to complete the clamping, which not only avoids the thread The force of direct clamping by the rod is difficult to control, and it is easy to press a concave mark on the outer surface of the valve block. When the clamping is loose, the valve block may fall directly. The spring 307 is used to push the push block 303 to clamp it. Even if vibration occurs in the subsequent welding work, when the clamping is loose, the spring 307 will continue to release elastic force to pull back the fixed plate 308 and the push block 303, so that one side of the push block 303 will always be tightly clamped with one side of the valve block. The rotating threaded rod 314 controls the movement of the fixed block B313 and the push block 303, so that the spring 307 controls the tightening force of the fixed plate 308 more accurately and stably, avoiding the problem of operating errors such as excessive or insufficient clamping force.

[0054] Example 3: Please refer to Figure 1-15 On the basis of the first and second embodiments, the present invention provides a technical solution: the centering calibration mechanism 4 includes a pressure plate 401, one end of the push block 303 is rotatably connected to the pressure plate 401 through a bearing, the outer wall of the pressure plate 401 is fixedly connected to a turntable 402, and the inner wall of the turntable 402 is provided with a scale groove 403.

[0055] A counterweight block 404 is fixedly connected to the outer wall of the turntable 402, a long plate 405 is fixedly connected to one side of the turntable 402, and a brush strip 406 is fixedly connected to the top of the long plate 405;

[0056] When the push block 303 and the fixed clamping plate 301 clamp the valve block, the push block 303 uses the pressure plate 401 on the right side to clamp the valve block, and the pressure plate 401 is rotatably connected to the push block 303 through a bearing, and the bearing is provided with damping inside, so a certain force is required when the pressure plate 401 rotates on one side of the push block 303, and the surface of the fixed clamping plate 301 on the left side that clamps the valve block is also a damping bearing disk, so when the fixed clamping plate 301 and the pressure plate 401 clamp the valve block tightly, the staff can rotate the valve block with a little force, so that after welding, the valve block can still be rotated to a more convenient position on other surfaces to weld the remaining holes again, which is convenient for the clamping effect of the multi-directional welding of the valve block;

[0057] After the clamping is completed, the valve block can be rotated manually, and then the circular virtual image formed by the corners of the valve block when it rotates can be observed from the right side. The circular virtual image formed when the valve block rotates can be used to compare the scales of the rotary disk 402 behind the valve block and the scale groove 403 on the rotary disk 402 to determine whether the clamping of the valve block is centered and close to the concentric circles. If the center deviates far, the position of the valve block can be adjusted to re-clamp it, so as to facilitate the welding of the valve block during subsequent rotation.

[0058] When the valve block is clamped and rotated, it will contact the brush strip 406 below, and the brush strip 406 will extend into the hole in the valve block due to its own elastic force, and sweep the hole in the valve block to remove the foreign particles in the hole where welding is required. When there is a lot of dirt and dust on the surface of the valve block, the turntable 402 can be rotated to drive the long plate 405 and the brush strip 406 below to rotate quickly around the valve block, and the brush strip 406 can be used to clean the valve block in a surrounding manner to ensure stable welding.

[0059] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An error-proofing tool for positioning welding of a valve block, comprising a workbench (2), a controller (1) being fixedly connected to the top of the workbench (2), a welding box (5) being fixedly connected to the top of the workbench (2), a welder (6) being arranged on the top of the welding box (5), an electric telescopic rod (7) being fixedly connected to the top of the workbench (2), a slide table (9) being fixedly connected to one end of the electric telescopic rod (7), and a slide seat (8) being slidably connected to the bottom of the slide table (9), characterized in that: The bottom of the slide seat (8) is fixedly connected to the top of the workbench (2), and the top of the slide table (9) is provided with a clamping mechanism (3); The clamping mechanism (3) comprises: A vertical plate (302), wherein the inner wall of the vertical plate (302) is slidably connected to a push block (303) via a sliding groove, the outer wall of the push block (303) is slidably connected to a sliding ring (304), the bottom of the sliding ring (304) is fixedly connected to a fixed block A (305), the inner wall of the fixed block A (305) is slidably connected to a connecting rod (306), and the vertical plate (302) is used to support the push block (303); A fixed disk (308), wherein the fixed disk (308) is a circular disk-shaped structure, one side of the fixed disk (308) is fixedly connected to a spring (307), one end of the spring (307) is fixedly connected to one side of a sliding ring (304), one side of the fixed disk (308) is fixedly connected to one end of a push block (303), there are two vertical plates (302), the inner wall of the vertical plate (302) on the right side is fixedly connected to a fixed clamping plate (301), and the fixed clamping plate (301) is used to play a role in fixing and clamping the valve block; One end of the connecting rod (306) is fixedly connected to one side of the vertical plate (302), and one end of the connecting rod (306) is fixedly connected to a fixing plate (309). The connecting rod (306) is used to fix the fixing plate (309) and the fixing block A (305); A sliding rod (310) is fixedly connected to the top of the fixed plate (309), and one end of the sliding rod (310) penetrates the inner wall of the push block (303) and is slidably connected to the inner wall of the push block (303); A one-way valve A (311) is provided at one end of the sliding rod (310), and a one-way valve B (312) is provided at one end of the sliding rod (310). The one-way valve A (311) and the one-way valve B (312) are in communication with the interior of the sliding rod (310), and the interior of the sliding rod (310) is in communication with the inner wall of the push block (303); The diameter of the one-way valve B (312) is smaller than the diameter of the one-way valve A (311).

2. The error-proofing tool for positioning welding of valve blocks according to claim 1, characterized in that: A fixing block B (313) is fixedly connected to the top of the sliding ring (304); a threaded rod (314) is threadedly connected to the inner wall of the fixing block B (313); a bearing disk (315) is fixedly connected to one end of the threaded rod (314); and one side of the bearing disk (315) is rotatably connected to the outer wall of the vertical plate (302).

3. The error-proofing tool for positioning welding of valve blocks according to claim 2, characterized in that: The outer wall of the threaded rod (314) is fixedly connected to a turning handle (316); the one-way valve A (311) and the one-way valve B (312) are one-way air intake valves; and the outer wall of the push block (303) is provided with a centering calibration mechanism (4).

4. The error-proofing tool for positioning welding of valve blocks according to claim 3 is characterized in that: The centering calibration mechanism (4) comprises a pressure plate (401), one end of the push block (303) is rotatably connected to the pressure plate (401) via a bearing, the outer wall of the pressure plate (401) is fixedly connected to a rotating disk (402), and the inner wall of the rotating disk (402) is provided with a scale groove (403).

5. The error-proofing tool for positioning welding of valve blocks according to claim 4, characterized in that: A counterweight block (404) is fixedly connected to the outer wall of the rotating disk (402), a long board (405) is fixedly connected to one side of the rotating disk (402), and a brush strip (406) is fixedly connected to the top of the long board (405).

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