Valve welding processing equipment

Abstract

The application relates to the technical field of welding processing, in particular to a valve welding processing equipment, which comprises a welding workbench, a fixed frame fixedly installed on the welding workbench, a gear reduction box fixedly installed on the fixed frame, a first rotating disc fixedly connected to the output end of the gear reduction box, a clamping piece fixedly installed on the first rotating disc, two clamping pieces, two clamping frames of the clamping pieces, and a connecting rod fixedly connected between the two clamping frames, a second rotating disc fixedly connected to the outer wall of one of the clamping frames, and a scraper which is reset by the rebound of a second reset spring and a third reset spring after the contact of a single first contact rod with a second ball is ended. The setting of multiple first contact rods makes the scraper be in the up-and-down reciprocating state, and the scraper intermittently pokes and scrapes the ring gap, so that the welding slag in the ring gap is uniformly and comprehensively cleaned.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding processing, in particular to a valve welding processing equipment. BACKGROUND

[0002] The valve welding device is an automatic or semi-automatic equipment specially used for welding of valves and pipes or pipe fittings, and the core function is to ensure welding precision, efficiency and joint quality, and plays an important role in the field of valve welding processing.

[0003] At present, the existing valve welding processing equipment needs to be clamped and fixed to avoid shaking and falling during the welding process because the valve and the pipe to be connected are both cylindrical in shape. However, the existing clamp needs to be adjusted at multiple angles manually to level the valve at multiple clamping points. Moreover, the clamp is prone to deformation and wear with multiple clamping, and the connection is prone to inaccuracy after clamping. In the process of connecting and welding the valve and the pipe, the girth welding method is usually used, which is prone to leaving some welding slag in the weld. Due to the annular weld, it is not easy to clean the annular weld. For some valves and pipes with thick walls, welding is prone to cause welding failure, so a valve welding processing equipment is needed to solve the problem. SUMMARY

[0004] To achieve the above purpose, the present application provides the following technical scheme: a valve welding processing equipment, comprising a welding workbench, a fixed frame fixedly installed on the welding workbench, a gear reduction box fixedly installed on the fixed frame, a first rotating disc fixedly connected to the output end of the gear reduction box, a clamping piece fixedly installed on the first rotating disc, two clamping pieces, two clamping frames, two clamping frames fixedly connected by a connecting rod, wherein the outer wall of one of the clamping frames is fixedly connected with a second rotating disc, a plurality of annularly distributed first contact rods are fixedly connected to the second rotating disc, a second contact rod is fixedly connected to the second rotating disc, a first ball is rotatably installed at one end of the second contact rod, an annular track groove is formed in the inner wall of the fixed frame, the first ball is slidably installed in the inner wall of the annular track groove, a plurality of annularly distributed contact blocks are fixedly connected to the inner wall of the annular track groove, and the contact blocks are provided in the form of spherical blocks.

[0005] Preferably, a first through groove is formed in the second rotating disc, a second through groove is formed in the fixed frame, and the first through groove and the second through groove are matched in outline.

[0006] Preferably, the first rotating disc is fixedly connected with a first sliding sleeve, an inner wall of the first sliding sleeve is slidably connected with a second sliding sleeve, an outer wall of the second sliding sleeve is fixedly connected with an outer wall of the clamping frame, and an outer wall of the second sliding sleeve is fixedly connected with a first return spring, and the other end of the first return spring is fixedly connected with the outer wall of the first rotating disc.

[0007] Preferably, the clamping frame is rotatably connected with two first clamping arms, the first clamping arms are provided with sliding grooves, the clamping frame is threadedly connected with a threaded rod, one end of the threaded rod is fixedly connected with a first rotating rod, the other end of the threaded rod is rotatably connected with a second clamping arm, an outer wall of the second clamping arm is fixedly connected with a sliding rod, and the sliding rod is slidably connected with the inner wall of the sliding groove.

[0008] Preferably, the first clamping arm and the second clamping arm are both fixedly connected with rubber clamping blocks, and the rubber clamping blocks are threadedly connected with fixing bolts.

[0009] Preferably, an inner wall of the fixed frame is fixedly connected with a guide rod, the guide rod is slidably sleeved with a lifting plate, the guide rod is sleeved with a second return spring, one end of the second return spring is fixedly connected with the inner wall of the fixed frame, the other end of the second return spring is fixedly connected with the outer wall of the lifting plate, the inner wall of the fixed frame is fixedly connected with a fixed box, the fixed box is provided with a sliding groove, and the lifting plate is slidably connected with the inner wall of the sliding groove.

[0010] Preferably, the lifting plate is fixedly connected with a third abutting rod, and one end of the third abutting rod is rotatably connected with a second rolling ball.

[0011] Preferably, an outer wall of the lifting plate is fixedly connected with a fourth abutting rod, and one end of the fourth abutting rod is rotatably connected with a third rolling ball.

[0012] Preferably, an inner wall of the fixed box is slidably connected with a fifth abutting rod, one end of the fifth abutting rod is rotatably connected with a fourth rolling ball, the other end of the fifth abutting rod is fixedly connected with a scraper, the fifth abutting rod is fixedly connected with a fixed piece, the fifth abutting rod is sleeved with a third return spring, one end of the third return spring is fixedly connected with the outer wall of the fixed piece, and the other end of the third return spring is fixedly connected with the outer wall of the fixed box.

[0013] The inner wall of the fixed box is rotatably connected with a second rotating rod, the second rotating rod is fixedly connected with a pushing plate, the second rotating rod is sleeved with a torsion spring, one end of the torsion spring is fixedly connected with the outer wall of the pushing plate, and the other end of the torsion spring is fixedly connected with the inner wall of the fixed box.

[0014] Preferably, the welding workbench is fixedly provided with a manipulator, and a welding machine is fixedly arranged at the moving end of the manipulator.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1、In the present application, a plurality of first contact rods are provided, after the contact of a single first contact rod with the second ball is ended, the rebound of the second reset spring and the third reset spring makes the scraper re-descend and reset, and the provision of the plurality of first contact rods makes the scraper be in an up-and-down reciprocating state, and the intermittent poking and scraping operations in the ring gap are carried out, so that the welding slag in the ring gap is uniformly and comprehensively cleaned.

[0017] 2、In the present application, a plurality of contact blocks are provided, so that during the welding of the valve and the pipe ring gap, horizontal reciprocating displacement is also carried out, so that the welding machine also carries out small-amplitude reciprocating welding forward and backward when welding the ring gap, at this time, the welding path is in a wavy curve shape, and the welding coverage area is larger, and the valve with a thicker wall is less likely to be unwelded.

[0018] 3、In the present application, the triangular positional relationship of the three rubber clamping blocks makes the clamping of the valve more firm, and since the rubber material of the rubber clamping block is provided, better clamping friction can be provided; during initial use, the fixing bolts on the rubber clamping block are in the initial position, and after long-term use and wear of the rubber clamping block, the fixing bolts can be adjusted by rotating to compensate for the clamping stress of the position of the worn rubber clamping block. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the overall three-dimensional structure of the present application;

[0020] Figure 2 It is a schematic view of another perspective structure of the overall structure of the present application;

[0021] Figure 3 It is a schematic view of the fixed frame and its surrounding structure of the present application;

[0022] Figure 4 It is a schematic view of another perspective structure of the fixed frame of the present application;

[0023] Figure 5 It is a schematic view of the first rotating disc and its surrounding structure of the present application;

[0024] Figure 6 It is a schematic view of the first rotating disc and its surrounding structure of the present application;

[0025] Figure 7 It is a schematic view of the Figure 6 enlarged structure of A in the present application;

[0026] Figure 8 Figure 2 is a schematic view of a second rotating disc and its peripheral structure according to the present application;

[0027] Figure 9 Figure 3 is a schematic view of a fixed frame cross-sectional structure according to the present application;

[0028] Figure 10 Figure 4 is a schematic view of a fixed box and its peripheral structure according to the present application;

[0029] Figure 11 Figure 5 is a schematic view of a fixed box cross-sectional structure according to the present application.

[0030] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0031] 1, welding workbench; 2, mechanical hand; 3, welding machine; 4, fixed frame; 5, gear reduction box; 6, transmission motor; 7, first rotating disc; 8, first sliding sleeve; 9, first return spring; 10, second sliding sleeve; 11, clamping frame; 12, threaded rod; 13, first rotating rod; 14, first clamping arm; 15, sliding groove; 16, second clamping arm; 17, sliding rod; 18, rubber clamping block; 19, fixing bolt; 20, connecting rod; 21, second rotating disc; 22, first abutting rod; 23, first through groove; 24, second abutting rod; 25, first ball; 26, second through groove; 27, abutting block; 28, annular track groove; 29, fixed box; 30, guide rod; 31, second return spring; 32, lifting plate; 33, third abutting rod; 34, second ball; 35, sliding groove; 36, fourth abutting rod; 37, third ball; 38, second rotating rod; 39, actuating plate; 40, torsion spring; 41, fifth abutting rod; 42, fourth ball; 43, fixed piece; 44, scraper; 45, third return spring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Embodiment one: the present embodiment promotes the solution to the problem that the existing clamp needs manual multi-angle adjustment to perform multi-clamping point leveling on the valve, and the clamp is prone to deformation and wear with multiple clamping, and is prone to inaccurate butt joint after clamping. Please refer to Figure 1 Figure 11 ​The utility model relates to a valve welding processing equipment, including welding workstation 1, fixedly installed fixed frame 4 on welding workstation 1, fixedly installed gear reduction box 5 on fixed frame 4, the output of gear reduction box 5 is fixedly connected with first rotating disc 7, and first rotating disc 7 is fixedly installed with clamping piece, and clamping piece is provided with two, and clamping piece includes two clamping frames 11, and two clamping frames 11 are fixedly connected through connecting rod 20, wherein the outer wall of one clamping frame 11 is fixedly connected with second rotating disc 21, a plurality of annular distribution's first contact lever 22 are fixedly connected on second rotating disc 21, and second rotating disc 21 is fixedly connected with second contact lever 24, and first ball 25 is rotatably installed at one end of second contact lever 24, and the inner wall of annular trajectory slot 28 is set in the inner wall of annular trajectory slot 28, and a plurality of annular distribution's contact block 27 are fixedly connected on the inner wall of annular trajectory slot 28, and contact block 27 is set as globular block.

[0034] First through slot 23 is set up on second rotating disc 21, and second through slot 26 is set up on fixed frame 4, and first through slot 23 and second through slot 26 are matched.

[0035] First rotating disc 7 is fixedly connected with first sliding sleeve 8, and the inner wall of first sliding sleeve 8 is slidably installed with second sliding sleeve 10, and the outer wall of second sliding sleeve 10 is fixedly connected with the outer wall of clamping frame 11, and the outer wall of second sliding sleeve 10 is fixedly connected with first return spring 9, and the other end of first return spring 9 is fixedly connected with the outer wall of first rotating disc 7.

[0036] Two first clamping arms 14 are rotatably installed on clamping frame 11, and sliding slot 15 is set up on first clamping arm 14, and threaded rod 12 is screw-connected in clamping frame 11, and one end of threaded rod 12 is fixedly connected with first rotating rod 13, and second clamping arm 16 is rotatably installed at the other end of threaded rod 12, and the outer wall of second clamping arm 16 is fixedly connected with sliding rod 17, and sliding rod 17 is slidably connected to the inner wall of sliding slot 15.

[0037] Rubber clamp block 18 is fixedly installed on first clamping arm 14 and second clamping arm 16, and fixed bolt 19 is screw-connected on rubber clamp block 18.

[0038] Welding workstation 1 is fixedly installed with manipulator 2, and the moving end of manipulator 2 is fixedly installed with welding machine 3, and the input of gear reduction box 5 is fixedly installed with transmission motor 6.

[0039] In the use of the valve welding device, first, the pipeline and valve to be welded are placed between the two clamping members, i.e., between the first clamping arms 14 and the second clamping arms 16, wherein the first clamping arms 14 on the two adjacent sides provide support force for the valve, and the second clamping arms 16 provide longitudinal clamping force for the valve in combination with the two first clamping arms 14, so that the valve is more secure.

[0040] The clamping process requires rotating the first rotating rod 13, which rotates the threaded rod 12, which moves downward through the threaded connection with the clamping frame 11, and the second clamping arm 16 connected at the end of the threaded rod 12 moves downward, and the two sliding rods 17 slide along the sliding groove 15, and due to the trajectory of the sliding groove 15, the two first clamping arms 14 rotate in opposite directions along the outer wall of the clamping frame 11 when the two sliding rods 17 slide downward, so that the valve is pressed downward on the corresponding rubber clamping blocks 18 of the two first clamping arms 14 by the rubber clamping blocks 18 of the second clamping arm 16, and the three rubber clamping blocks 18 cooperate to fix the position of the valve, and the triangular relationship of the three rubber clamping blocks 18 makes the clamping of the valve more secure, and the rubber material of the rubber clamping blocks 18 provides better clamping friction.

[0041] When the valve and pipeline are clamped on the left and right clamping members, respectively, the abutted position of the valve and pipeline needs to be in a state of close alignment. In the initial use, the fixing bolts 19 on the rubber clamping blocks 18 are in the initial position, and when the rubber clamping blocks 18 are worn out after long-term use, the clamping stress can be compensated by adjusting the fixing bolts 19 to make up for the worn position of the rubber clamping blocks 18.

[0042] After the valve and pipeline positions are fixed, the robot 2 is started, the robot 2 moves to align the output end of the welding machine 3 with the gap at the abutted position of the valve and pipeline, and then the welding machine 3 is started to weld the girth of the abutted position of the valve and pipeline. At the same time, the transmission motor 6 is started, the transmission motor 6 drives the output end of the gear reduction box 5 to rotate, the output end of the gear reduction box 5 drives the first rotating disc 7 to rotate, and the two clamping frames 11 and the connecting rod 20 rotate synchronously, so that the clamped valve and pipeline rotate synchronously, and the welding machine 3 performs girth welding on the girth.

[0043] When the girth welding is in progress, the right clamping frame 11 rotates synchronously with the second rotating disc 21, the second rotating disc 21 rotates synchronously with the second contact rod 24, the second contact rod 24 rotates synchronously with the first ball 25 along the inner circumference of the annular track groove 28, with the sliding of the first ball 25, the first ball 25 will intermittently contact with the plurality of contact blocks 27, the contact will make the first ball 25 move a small distance away from the contact block 27 with the second contact rod 24 and the second rotating disc 21, the second rotating disc 21 moves synchronously with the connecting rod 20, the two clamping frames 11 and the second sliding sleeve 10, the second sliding sleeve 10 slides along the first sliding sleeve 8, and the first return spring 9 is compressed at the time of sliding, at which time the clamped valve and pipeline are synchronously displaced, with the removal of the contact with the contact block 27, the first return spring 9 resets synchronously with the second sliding sleeve 10, the two clamping frames 11 and the second rotating disc 21, the second contact rod 24 and the first ball 25, due to the plurality of contact blocks 27, the valve and pipeline will also be horizontally reciprocated during the girth welding, so that the welding machine 3 will also be reciprocated forward and backward during the girth welding, at which time the welding path will be a wavy curve, and the welding coverage area will be larger, and the valve with a thicker wall will not be prone to welding failure.

[0044] Embodiment two: This embodiment is to solve the problem that it is not easy to clean the slag in the annular weld, and the valve and pipeline with a thicker wall are prone to welding failure during welding due to the annular weld, this embodiment is an improvement based on embodiment one, for details, please refer to Figure 1 Figure 11 The inner wall of the fixed frame 4 is fixedly connected with a guide rod 30, a lifting plate 32 is slidably sleeved on the guide rod 30, a second return spring 31 is sleeved on the guide rod 30, one end of the second return spring 31 is fixedly connected with the inner wall of the fixed frame 4, the other end of the second return spring 31 is fixedly connected with the outer wall of the lifting plate 32, a fixed box 29 is fixedly installed on the inner wall of the fixed frame 4, a sliding groove 35 is formed in the fixed box 29, and the lifting plate 32 is slidably connected to the inner wall of the sliding groove 35.

[0045] A third contact rod 33 is fixedly connected to the lifting plate 32, and a second ball 34 is rotatably installed at one end of the third contact rod 33.

[0046] A fourth contact rod 36 is fixedly connected to the outer wall of the lifting plate 32, and a third ball 37 is rotatably installed at one end of the fourth contact rod 36.

[0047] ​A fifth abutment rod 41 is slidably connected to the inner wall of the fixed box 29. A fourth ball bearing 42 is rotatably installed at one end of the fifth abutment rod 41, and a scraper 44 is fixedly installed at the other end of the fifth abutment rod 41. A fixing plate 43 is fixedly connected to the fifth abutment rod 41, and a third return spring 45 is sleeved on the fifth abutment rod 41. One end of the third return spring 45 is fixedly connected to the outer wall of the fixing plate 43, and the other end of the third return spring 45 is fixedly connected to the outer wall of the fixed box 29.

[0048] A second rotating rod 38 is rotatably mounted on the inner wall of the fixed box 29. A toggle plate 39 is fixedly connected to the second rotating rod 38. A torsion spring 40 is sleeved on the second rotating rod 38. One end of the torsion spring 40 is fixedly connected to the outer wall of the toggle plate 39. The other end of the torsion spring 40 is fixedly connected to the outer wall of the fixed box 29. A fourth abutment rod 36 is fixedly connected to the inner wall of the fixed box 29. A third ball bearing 37 is rotatably mounted on one end of the fourth abutment rod 36.

[0049] A fifth abutment rod 41 is slidably connected to the inner wall of the fixed box 29. A fourth ball bearing 42 is rotatably installed at one end of the fifth abutment rod 41, and a scraper 44 is fixedly installed at the other end of the fifth abutment rod 41. A fixing plate 43 is fixedly connected to the fifth abutment rod 41, and a third return spring 45 is sleeved on the fifth abutment rod 41. One end of the third return spring 45 is fixedly connected to the outer wall of the fixing plate 43, and the other end of the third return spring 45 is fixedly connected to the outer wall of the fixed box 29.

[0050] A second rotating rod 38 is rotatably mounted on the inner wall of the fixed box 29. A toggle plate 39 is fixedly connected to the second rotating rod 38. A torsion spring 40 is sleeved on the second rotating rod 38. One end of the torsion spring 40 is fixedly connected to the outer wall of the toggle plate 39, and the other end of the torsion spring 40 is fixedly connected to the inner wall of the fixed box 29.

[0051] In this embodiment: During the welding process, as the second rotating disk 21 rotates, the second rotating disk 21 moves in a circular motion along with multiple first abutment rods 22. When the first abutment rods 22 move in a circular motion, they will abut against the second ball 34. The abutment causes the second ball 34 to be subjected to downward force. The second ball 34, along with the third abutment rod 33 and the lifting plate 32, moves downward under the force. The lifting plate 32 is guided downward by the guide rod 30, and when the lifting plate 32 moves downward, it will compress the second return spring 31.

[0052] The fourth contact rod 36 and the third ball 37 are synchronously lowered with the lowering of the lifting plate 32, the third ball 37 is lowered to contact one side of the toggle plate 39, so that the toggle plate 39 is deflected to one side with the second rotating rod 38, the other side of the toggle plate 39 is deflected upward, the deflected side of the toggle plate 39 contacts the fourth ball 42, so that the fourth ball 42 is forced upward with the fifth contact rod 41, the fifth contact rod 41 is lifted with the scraper 44 to perform the scraping operation in the ring gap being welded, and since the first contact rod 22 is provided in plurality, after the single first contact rod 22 is contacted with the second ball 34, the rebound of the second reset spring 31 and the third reset spring 45 makes the scraper 44 re-lower to reset, and the plurality of first contact rods 22 makes the scraper 44 in the up-and-down reciprocating state, intermittently performs the poking and scraping operation in the ring gap, and uniformly and comprehensively cleans the welding slag in the ring gap.

[0053] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that are not specifically enumerated herein. Thus, for example, any statements regarding the preferred embodiment or the preferred implementation are intended to be illustrative only and are not meant in a restrictive sense. It is to be understood that the terminology used herein is intended to be interpreted broadly and is intended to include the broadest possible meaning of the terms used in the specification and the accompanying drawings. It is to be further understood that the terminology used herein is not intended to limit the scope of the present application and that the scope of the present application is defined by the claims and the equivalents thereof.

[0054] While the embodiments of the application have been shown and described herein, it is understood that various modifications, substitutions, combinations, and alterations can be made to the embodiments without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A valve welding processing equipment, comprising a welding workbench (1) and a fixed frame (4) fixedly installed on the welding workbench (1), characterized in that: A gear reducer (5) is fixedly installed on the fixed frame (4). A first rotating disk (7) is fixedly connected to the output end of the gear reducer (5). A clamping member is fixedly installed on the first rotating disk (7). There are two clamping members. The clamping member includes two clamping frames (11). The two clamping frames (11) are fixedly connected to each other by a connecting rod (20). A second rotating disk (21) is fixedly connected to the outer wall of one of the clamping frames (11). A second rotating disk (21) is fixedly connected to the second rotating disk (21). The first abutment rod (22) is connected to a plurality of annularly distributed first abutment rods (22), and a second abutment rod (24) is fixedly connected to the second rotating disk (21). A first ball bearing (25) is rotatably installed at one end of the second abutment rod (24). An annular track groove (28) is provided on the inner wall of the fixed frame (4). The first ball bearing (25) is slidably installed on the inner wall of the annular track groove (28). A plurality of annularly distributed abutment blocks (27) are fixedly connected to the inner wall of the annular track groove (28). The abutment blocks (27) are set as spherical blocks. A first sliding sleeve (8) is fixedly connected to the first rotating disk (7). A second sliding sleeve (10) is slidably installed on the inner wall of the first sliding sleeve (8). The outer wall of the second sliding sleeve (10) is fixedly connected to the outer wall of the clamping frame (11). A first return spring (9) is fixedly connected to the outer wall of the second sliding sleeve (10). The other end of the first return spring (9) is fixedly connected to the outer wall of the first rotating disk (7). Two first clamping arms (14) are rotatably mounted on the clamping frame (11). A sliding groove (15) is provided on the first clamping arm (14). A threaded rod (12) is threadedly connected to the clamping frame (11). A first rotating rod (13) is fixedly connected to one end of the threaded rod (12). A second clamping arm (16) is rotatably mounted to the other end of the threaded rod (12). A sliding rod (17) is fixedly connected to the outer wall of the second clamping arm (16). The sliding rod (17) is slidably connected to the inner wall of the sliding groove (15). Rubber clamping blocks (18) are fixedly installed on the first clamping arm (14) and the second clamping arm (16), and fixing bolts (19) are threadedly connected to the rubber clamping blocks (18). A fixed box (29) is fixedly installed on the inner wall of the fixed frame (4). A fifth abutment rod (41) is slidably connected to the inner wall of the fixed box (29). A fourth ball bearing (42) is rotatably installed at one end of the fifth abutment rod (41). A scraper (44) is fixedly installed at the other end of the fifth abutment rod (41). A fixed plate (43) is fixedly connected to the fifth abutment rod (41). A third return spring (45) is sleeved on the fifth abutment rod (41). One end of the third return spring (45) is fixedly connected to the outer wall of the fixed plate (43). The other end of the third return spring (45) is fixedly connected to the outer wall of the fixed box (29). The inner wall of the fixed box (29) is rotatably mounted with a second rotating rod (38), a toggle plate (39) is fixedly connected to the second rotating rod (38), and a torsion spring (40) is sleeved on the second rotating rod (38). One end of the torsion spring (40) is fixedly connected to the outer wall of the toggle plate (39), and the other end of the torsion spring (40) is fixedly connected to the inner wall of the fixed box (29).

2. The valve welding processing equipment according to claim 1, characterized in that: The second rotating disk (21) has a first through groove (23), and the fixed frame (4) has a second through groove (26). The outlines of the first through groove (23) and the second through groove (26) are matched.

3. The valve welding processing equipment according to claim 1, characterized in that: The inner wall of the fixed frame (4) is fixedly connected to a guide rod (30), and a lifting plate (32) is slidably sleeved on the guide rod (30). A second reset spring (31) is sleeved on the guide rod (30). One end of the second reset spring (31) is fixedly connected to the inner wall of the fixed frame (4), and the other end of the second reset spring (31) is fixedly connected to the outer wall of the lifting plate (32). A sliding groove (35) is provided on the fixed box (29), and the lifting plate (32) is slidably connected to the inner wall of the sliding groove (35).

4. The valve welding processing equipment according to claim 3, characterized in that: A third abutment rod (33) is fixedly connected to the lifting plate (32), and a second ball bearing (34) is rotatably installed at one end of the third abutment rod (33).

5. The valve welding processing equipment according to claim 3, characterized in that: The outer wall of the lifting plate (32) is fixedly connected to a fourth abutment rod (36), and a third ball bearing (37) is rotatably installed at one end of the fourth abutment rod (36).

6. The valve welding processing equipment according to claim 1, characterized in that: A robotic arm (2) is fixedly installed on the welding workbench (1), a welding machine (3) is fixedly installed on the moving end of the robotic arm (2), and a transmission motor (6) is fixedly installed on the input end of the gear reducer (5).

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