Fixing device for welding spring cylinder component

Abstract

The utility model relates to the technical field of fixing equipment, in particular to a welding and fixing device for a spring cylinder part, which comprises a working platform provided with a sliding chute; the first base is used for placing a cylinder barrel of the spring cylinder, a roller group is rotationally arranged on the first base, and the roller group is used for being in contact with the cylinder barrel; the second base is arranged in the sliding groove in a sliding mode, and an adjusting gear is rotationally arranged on the second base; the positioning support is fixedly connected with the working platform, and the first base is located between the positioning support and the second base; through the design of the device, an operator only needs to place a cylinder barrel of a compressed spring cylinder on a roller group of the first base, and a positioning part of a base of the spring cylinder is placed in a positioning groove of the positioning seat, so that welding seams of the left end cover, the right end cover and the cylinder barrel are automatically welded; and through the design of the rotary rail, the lifting lug is moved to the designed position, and the purpose of rapidly welding the lifting lug is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fixed equipment technical field especially is related to a spring cylinder part welding fixing device. BACKGROUND

[0002] Spring cylinder part is single action straight stroke piston type pneumatic actuator, single crank type pneumatic actuator provides the component of spring reset force, the spring cylinder part ear of existing actuator manufacturer uses generally is through the bench work scribe after adjusting the welding position, and the scribe process of ear is complicated, and the weld is also through the welding of multiple processes, because the weight of spring cylinder part is relatively big, and the thread hole of spring cylinder left and right end cover processing and ear need to guarantee certain position degree relations, can guarantee that spring cylinder part does not incline in hoisting and installation process, and moreover, the conventional scribe and welding are completed by several processes and different operators, prolong the delivery cycle of actuator. SUMMARY

[0003] The utility model solves the technical problem that: in order to overcome the spring cylinder part in the hoisting and installation process of prior art and easily occur inclination and its scribe and welding process are many, lead to the problem of long processing time, provide a kind of spring cylinder part welding fixing device.

[0004] The utility model solves the technical problem and adopts the technical scheme that: a kind of spring cylinder part welding fixing device,

[0005] The spring cylinder includes cylinder barrel, ear, left end cover, right end cover and base, ear is arranged on the outer peripheral wall of cylinder barrel, left end cover is arranged at the left end of cylinder barrel, right end cover is arranged at the right end of cylinder barrel, base is connected with right end cover, and positioning portion is formed on the base in projection;

[0006] The welding fixing device includes:

[0007] Work platform, sliding slot is opened in it;

[0008] First base, for placing the cylinder barrel of spring cylinder, first base is rotatably arranged with roller group on, roller group is used to contact with cylinder barrel, and roller group enables the circumferential rotation of cylinder barrel, and first base is slidably arranged in sliding slot;

[0009] Second base, slidably arranged in sliding slot, second base is rotatably arranged with adjusting gear;

[0010] Positioning support, and first base is located between positioning support and second base;

[0011] The rotating rail is rotationally connected with the positioning support, the rotating center line of the rotating rail and the positioning support coincides with the center line of the cylinder barrel, a guide groove for transversely moving the lifting lug is formed on the rotating rail and extends along the axial direction of the cylinder barrel, the lifting lug is arranged in the guide groove by sliding through the positioning mandrel itself, a positioning seat is rotationally arranged on the end of the rotating rail away from the positioning support, a positioning groove for placing the positioning part is formed on the positioning seat, the positioning seat can rotate the base linkage cylinder, the outer peripheral wall of the positioning seat has teeth matched with the adjusting gear, the teeth of the positioning seat are engaged with the adjusting gear, through the design of the device, the operator only needs to place the cylinder barrel of the compressed spring cylinder on the roller set of the first base, place the positioning part of the base of the spring cylinder in the positioning groove of the positioning seat, automatically weld the left and right end covers and the cylinder barrel weld joint, and then move the lifting lug to the designed position through the design of the rotating rail, so that the purpose of quickly welding the lifting lug is achieved.

[0012] Further comprising an avoiding groove formed on the first base, the roller set comprises a first roller and a second roller, the first roller is rotationally connected with the first base, the second roller is rotationally connected with the first base, the cylinder barrel is arranged between the first roller and the second roller, the first roller and the second roller are in rolling contact with the cylinder barrel, and the first roller and the second roller are arranged around the avoiding groove.

[0013] In order to solve the problem that the first base and the second base slide randomly in the sliding groove, the welding fixing device further comprises a lead screw, the lead screw is threadedly connected with the first base and rotationally connected with the second base, and a hand wheel disc is installed on one end of the lead screw.

[0014] In order to solve the problem that the height of the adjusting gear cannot be adjusted, the second base top surface is provided with a positioning plate, the positioning plate is provided with an adjusting hole extending in the vertical direction, and the adjusting gear is arranged in the adjusting hole.

[0015] In order to solve the problem that the angle of the rotating rail is difficult to fix, resulting in the difficulty of welding the lifting lug, the welding fixing device further comprises an angle adjusting piece for adjusting the angle of the rotating rail.

[0016] An angle adjusting hole matched with the angle adjusting piece is formed on the end of the rotating rail close to the positioning support.

[0017] When the angle of the rotating rail is fixed, the angle adjusting piece is inserted into the angle adjusting hole.

[0018] In order to solve the problem that the position of the angle adjusting piece is fixed, resulting in the limited adjustment range of the rotating rail, the positioning support is provided with an arc-shaped adjusting cavity, the center of the adjusting cavity is coaxially arranged with the center of the cylinder barrel, and the angle adjusting piece is arranged in the adjusting cavity and can move along the adjusting cavity.

[0019] In order to solve the problem of how the angle adjusting part realizes the angle adjustment of the rotating rail, further comprising an angle adjusting part comprising an adjusting rod, a reset spring, a sleeve, a locking nut and a split pin, the sleeve is protruded to form a limiting part, the outer peripheral wall of the sleeve has a threaded segment matched with the locking nut, the locking nut and the threaded segment of the sleeve are threadedly connected, the sleeve is arranged in the adjusting cavity, and the positioning support is located between the limiting part and the locking nut, a pin shaft cavity for the movement of the split pin is formed in the sleeve, the pin shaft cavity extends along the sleeve, the split pin and the adjusting rod are fixedly connected, and the split pin is located in the pin shaft cavity, the reset spring is sleeved on the adjusting rod, and the reset spring is located in the sleeve, one end of the reset spring abuts against the sleeve, and the other end abuts against the adjusting rod.

[0020] In order to solve the problem that the adjusting rod of the angle adjusting part hinders the rotation of the rotating rail, further comprising a positioning cavity formed in the end of the pin shaft cavity away from the positioning support.

[0021] In order to solve the problem that the moving position of the lifting lug is not accurate, further comprising a size scale for displaying the position of the lifting lug on the rotating rail.

[0022] Further comprising a baffle arranged to rotate on the rotating rail, the other end of the baffle is embeddedly connected with the rotating rail, and a gap for fixing the lifting lug is formed between the rotating rail and the baffle.

[0023] The spring cylinder part welding fixing device has the advantages that: through the design of the device, the operator only needs to place the compressed cylinder barrel of the spring cylinder on the roller set of the first base, the positioning part of the base of the spring cylinder is placed in the positioning groove of the positioning seat, the left and right end covers and the cylinder barrel weld are automatically welded, the lifting lug is moved to the designed position through the design of the rotating rail, and the purpose of quickly welding the lifting lug is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model is further illustrated below in combination with the drawings and embodiments.

[0025] Figure 1 is the structure schematic diagram of the utility model;

[0026] Figure 2 is the overhead structure schematic diagram of the utility model;

[0027] Figure 3 is the utility model Figure 2 is the section structure schematic diagram of A-A place in the utility model;

[0028] Figure 4 is the left structure schematic diagram of the utility model;

[0029] Figure 5 is the right structure schematic diagram of the utility model;

[0030] Figure 6 is the structural schematic diagram of the angle adjusting piece of the utility model;

[0031] Figure 7 is the structural schematic diagram of the utility model Figure 6 is the sectional structure schematic diagram of B-B.

[0032] In the drawing: 1, spring cylinder, 11, cylinder barrel, 12, lifting lug, 13, left end cover, 14, right end cover, 15, base, 151, positioning part;

[0033] 2, work platform, 21, sliding slot;

[0034] 3, first base, 31, avoiding slot, 32, first roller, 33, second roller;

[0035] 4, second base, 41, adjusting gear, 42, positioning plate, 421, adjusting hole;

[0036] 5, positioning support, 51, adjusting cavity;

[0037] 6, rotating rail, 61, guide slot, 62, positioning seat, 621, positioning slot, 63, angle adjusting hole, 64, size scale, 65, positioning mandrel, 66, baffle;

[0038] 7, lead screw, 71, hand wheel disc;

[0039] 8, angle adjusting piece, 81, adjusting rod, 82, return spring, 83, sleeve, 831, limiting part, 832, threaded section, 833, pin shaft cavity, 834, positioning cavity, 84, locking nut, 85, split pin. DETAILED DESCRIPTION

[0040] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only the basic structure of the utility model is schematically shown, so it only shows the structure related to the utility model.

[0041] As Figure 1 is the structural schematic diagram of the utility model, a spring cylinder component welding fixing device,

[0042] As Figure 1 , Figure 3As shown, the spring cylinder 1 comprises a cylinder barrel 11, an ear 12, a left end cover 13, a right end cover 14 and a base 15, the ear 12 is arranged on the outer peripheral wall of the cylinder barrel 11, the left end cover 13 is arranged at the left end of the cylinder barrel 11, the right end cover 14 is arranged at the right end of the cylinder barrel 11, the base 15 is connected with the right end cover 14, and a positioning portion 151 is protruded on the base 15, the spring cylinder 1 further comprises a pull rod, a spring and a spring seat, the spring seat is arranged in the cylinder barrel 11, the spring seat is fixedly connected with the right end cover 14, one end of the spring abuts against the left end cover 13, the other end of the spring abuts against the spring seat, one end of the pull rod protrudes from the left end cover 13, the other end of the pull rod passes through the spring seat and is threadedly connected with the right end cover 14, and a central threaded hole is formed in the left end cover 13 and coaxial with the adjusting rod 81;

[0043] The welding fixing device comprises:

[0044] As shown in Figure 2 、 Figure 3 , the working platform 2 is provided with a sliding groove 21;

[0045] The first base 3 is used for placing the cylinder barrel 11 of the spring cylinder 1, and the first base 3 is rotatably provided with a roller set, the roller set is used for contacting the cylinder barrel 11, the roller set enables the cylinder barrel 11 to rotate in the circumferential direction, and the first base 3 is slidably arranged in the sliding groove 21;

[0046] The second base 4 is slidably arranged in the sliding groove 21, the second base 4 is rotatably provided with an adjusting gear 41, and the top surface of the second base 4 is provided with a positioning plate 42, the positioning plate 42 is provided with an adjusting hole 421 extending in the vertical direction, and the adjusting gear 41 is arranged in the adjusting hole 421; through the design of the adjusting hole 421 on the positioning plate 42, the height of the adjusting gear 41 can be adjusted, on the one hand, the adjusting gear 41 is convenient to engage with the positioning seat 62, and on the other hand, the central axis position of the positioning seat 62 can be adjusted;

[0047] The positioning support 5 is fixedly connected with the working platform 2, and the first base 3 is located between the positioning support 5 and the second base 4;

[0048] A rotating rail 6 is rotationally connected with the positioning support 5, the rotating center line of the rotating rail 6 and the positioning support 5 coincides with the center line of the cylinder 11, a guide groove 61 for transverse movement of the lug 12 is formed on the rotating rail 6, the guide groove 61 extends along the axis direction of the cylinder 11, the lug 12 is slidingly arranged in the guide groove 61 through a positioning mandrel 65, a positioning seat 62 is rotationally arranged on the end of the rotating rail 6 away from the positioning support 5, the center axis of the positioning seat 62 coincides with the center line of the cylinder 11, that is, the center axis of the positioning seat 62 coincides with the rotating center line of the rotating rail 6 and the positioning support 5, a positioning groove 621 for placing the positioning part 151 is formed on the positioning seat 62, the positioning seat 62 can drive the base 15 to rotate the cylinder 11, the outer peripheral wall of the positioning seat 62 is provided with teeth matched with the adjusting gear 41, and the teeth of the positioning seat 62 are engaged with the adjusting gear 41.

[0049] A baffle 66 is rotationally arranged on the rotating rail 6, the other end of the baffle 66 is embeddedly connected with the rotating rail 6, and a gap for fixing the lug 12 is formed between the rotating rail 6 and the baffle 66.

[0050] A size scale 64 for displaying the position of the lug 12 is arranged on the rotating rail 6, and the positioning mandrel 65 is provided with a pointer for pointing to the size scale 64.

[0051] An avoiding groove 31 is formed on the first base 3, the roller set includes a first roller 32 and a second roller 33, the first roller 32 and the second roller 33 are spaced apart along the circumference of the cylinder 11, the first roller 32 is rotationally connected with the first base 3, the second roller 33 is rotationally connected with the first base 3, the cylinder 11 is arranged between the first roller 32 and the second roller 33, the second roller 33 and the first roller 32 are in rolling contact with the cylinder 11, the first roller 32 and the second roller 33 are arranged around the avoiding groove 31, the cooperation of the first roller 32 and the second roller 33 serves as a first supporting point of the cylinder 11, and elastic retaining rings are arranged on the mounting shafts of the first roller 32 and the second roller 33, which can avoid axial movement of the mounting shafts of the first roller 32 and the second roller 33.

[0052] The welding fixing device further includes a lead screw 7, the lead screw 7 is threadedly connected with the first base 3 and rotationally connected with the second base 4, a hand wheel disc 71 is mounted on one end of the lead screw 7, and the lead screw 7 is used for fixing the positions of the first base 3 and the second base 4 to avoid arbitrary movement of the two.

[0053] As shown in Figure 1 , Figure 2 , the welding fixing device further includes an angle adjusting piece 8 for adjusting the angle of the rotating rail 6.

[0054] An angle adjusting hole 63 matched with the angle adjusting piece 8 is formed on the end of the rotating rail 6 close to the positioning support 5.

[0055] When the angle of the orbit 6 is fixed, the angle adjusting member 8 is inserted into the angle adjusting hole 63.

[0056] As shown in Figure 4 Fig. 1, the positioning support 5 is provided with an arc-shaped adjusting cavity 51, the center of the adjusting cavity 51 is coaxially arranged with the center of the cylinder 11, and the angle adjusting member 8 is arranged in the adjusting cavity 51 and can move along the adjusting cavity 51.

[0057] As shown in Figure 7 Fig. 2, the angle adjusting member 8 comprises an adjusting rod 81, a reset spring 82, a sleeve 83, a locking nut 84, and a split pin 85, the sleeve 83 is provided with a limiting portion 831 protruding therefrom, the outer peripheral wall of the sleeve 83 is provided with a threaded segment 832 matched with the locking nut 84, the locking nut 84 and the threaded segment 832 of the sleeve 83 are threadedly connected, the sleeve 83 is arranged in the adjusting cavity 51, and the positioning support 5 is located between the limiting portion 831 and the locking nut 84, the sleeve 83 is provided with a pin shaft cavity 833 for the movement of the split pin 85, the pin shaft cavity 833 extends axially along the sleeve 83, the split pin 85 is fixedly connected with the adjusting rod 81 and located in the pin shaft cavity 833, the reset spring 82 is sleeved on the adjusting rod 81 and located in the sleeve 83, one end of the reset spring 82 abuts against the sleeve 83, and the other end of the reset spring 82 abuts against the adjusting rod 81.

[0058] The end of the pin shaft cavity 833 away from the positioning support 5 is provided with a positioning cavity 834 extending along the circumference of the sleeve 83, which is used for clamping the split pin 85, at this time, the adjusting rod 81 is in a retracted state and will not interfere with the rotation of the orbit 6.

[0059] The device solves the technical problem that the relative position relationship of the spring cylinder component lug, cylinder and end cover needs to be ensured during the welding process of the existing single-acting straight stroke piston type pneumatic actuator and single-crank type pneumatic actuator; the present application provides a spring cylinder component end cover, lug 12 and cylinder 11 welding tool, the welding position of the spring cylinder lug 12 can be directly read from the tool, and the welding device can also be connected with the motor to realize the purpose of quickly and automatically welding the cylinder and the left and right end covers.

[0060] Operation steps:

[0061] (1) using hydraulic machine will be left end cover 13, spring, cylinder 11, right end cover 14, spring seat, positioning pin compression, using hex nut, pull rod, base 15 back to the whole, the compression of the spring cylinder components as a whole after lifting placed in the spring cylinder components end cap, lifting lug and cylinder welding tool; compression of the spring cylinder components as a whole to the welding tool, when the rotating rail 6 side rotation to the upper end surface of the work platform 2 is flat, left end cover 13 one side cylinder 11 outer circle with the first roller 32, the second roller 33 outer circle cooperation, the other side of the base 15 on the hole, the positioning pin one end fits in the hole of the base 15, the other end fits in the threaded hole on the right end cover 14, the positioning pin is smaller than the threaded hole on the right end cover 14 0.2mm, the positioning part 151 on the base 15 and the positioning groove 621 on the positioning seat 62 cooperation, the positioning groove 621 is 0.2mm gap, the tooth on the outer circle of the positioning seat 62 and the tooth on the adjusting gear 41 mesh; the second base 4 is installed in the sliding groove 21 on the work platform 2, the second base 4 center is processed with T type internal thread hole, the T type thread on the outer circle of the lead screw 7 and the internal thread hole of the second base 4 cooperation; the hand wheel disc 71 is installed on one side of the lead screw 7, the other end of the lead screw 7 and the T type internal thread hole on the first base 3 cooperation; the tooth on the outer circle of the adjusting gear 41 and the gear on the motor shaft mesh, the adjusting gear 41 is driven to rotate by the motor, the adjusting gear 41 drives the positioning seat 62 to rotate, the positioning seat 62 drives the cylinder 11 to rotate.

[0062] (2) using automatic welding machine welding gun respectively on the left and right end cover 13, 14 and spring cylinder cylinder 13, 14 between the welding groove, the welding seam between the left and right end cover 13, 14 and the cylinder 11 is welded during the rotation of the spring cylinder components, after the welding seam between the cylinder 11 and the left and right end cover 13, 14 is welded, the motor stops rotating, so that the center line of the two center threaded holes on the left end cover 13 is basically perpendicular to the work platform 2, the rotating rail 6 is rotated to the upper side of the work platform 2, the sleeve 83 in the angle adjusting part 8 is installed in the adjusting cavity 51 on the positioning support 11 and slides along the adjusting cavity 51, when the sleeve 83 slides to the highest point of the adjusting cavity 51, the center distance of the adjusting cavity 51 on the positioning support 11 is equal to the center distance of the threaded hole on the left end cover 8, the sleeve 83 is locked on the positioning support 11 by the cooperation of the locking nut 84 and the limiting part 831, the open pin 85 is separated from the positioning cavity on the sleeve 83, the compressed reset spring 82 moves the adjusting rod 81 to the left end cover 13 side, the adjusting rod 81 passes through the slot on the rotating rail 6, and the angle adjusting hole 63 on the rotating rail 6 has a 0.2mm gap with the adjusting rod 81;

[0063] The motor intermittently operates, so that the spring cylinder component rotates on the roller group. The operator pulls the handle of the adjusting rod 81, so that the front end of the adjusting rod 81 does not insert into the threaded holes on the left end cover 13. When the middle threaded hole on the left end cover 13 is coaxial with the adjusting rod 81, the motor stops rotating. The operator releases the handle of the adjusting rod 81, so that the front end of the adjusting rod 81 inserts into the middle threaded hole. The adjusting rod 81 limits the rotation of the rotating rail 6. The adjusting rod 81 is inserted into any one of the two central threaded holes on the end surface of the left end cover 13. The threaded hole on the left end cover 13 is 0.2 mm larger than the adjusting rod 81. The lifting lug 5 is placed into the gap between the rotating rail 6 and the baffle 66. The gap between the rotating rail 6 and the baffle 66 is 0.1-0.3 mm wider than the thickness of the lifting lug 5. The positioning mandrel 65 is inserted into the horizontal groove on the front surface of the rotating rail 6. The cylinder on one end of the positioning mandrel 65 is aligned with the hole on the lifting lug 5. The outer cylinder of the positioning mandrel 65 is 0.2 mm smaller than the central hole of the lifting lug 5. The cylinder of the positioning mandrel 65 is pulled out of the guide groove 61. The guide groove 61 is 0.2-0.4 mm wider than the diameter of the cylinder on the positioning mandrel 65 and the hole on the lifting lug 5. The square plane on the positioning mandrel 65 is 0.2-0.4 mm apart from the guide groove 61 on the rotating rail 6. The pointer on the positioning mandrel 65 is upward and points to the size scale on the rotating rail 6. The size indicated by the pointer can be read from the scale on the rotating rail 6.

[0064] (3) After the position of the lifting lug 12 is determined, the operator uses the welding gun to firmly weld the lifting lug 12. The operator holds the handle on the positioning mandrel 65, so that the square plane on the positioning mandrel 65 slides on the rotating rail 6. The horizontal distance of the movement of the lifting lug 5 is the distance from the bottom plane of the right end cover to the center of the hole on the lifting lug 5 in the design drawing. After the operator completes the welding around the lifting lug 5, the operator rotates the baffle 66 to lift it. The operator pulls the split pin 85 to the position of the positioning cavity 834 on the sleeve 83. The split pin 85 is clamped in the positioning cavity 834 on the sleeve 83. The split pin 85 is taken as the shaft. The split pin 85 is clamped in the positioning cavity 834 on the sleeve 83. The rotating shaft on the rotating rail 6 and the center line of the positioning seat 62 are taken as the shafts. The rotating rail 6 is rotated. The side surface of the rotating rail 6 is parallel to the upper end surface of the working platform 2, so that the spring cylinder component is lifted without interference.

[0065] (4) After the spring cylinder with the welded lifting lug 5 is lifted from the welding fixing device, the spring cylinder is placed on the ground. The hexagonal nut, the pull rod and the base 15 are disassembled. The spring cylinder component is welded.

[0066] Based on the above ideal embodiments of the present application, the related personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited by the content in the specification. The technical scope of the present application must be determined by the scope of the claims.

Claims

1. A welding and fixing device for a spring cylinder component, characterized in that, The spring cylinder (1) includes a cylinder (11), a lifting lug (12), a left end cap (13), a right end cap (14), and a base (15). The lifting lug (12) is arranged on the outer peripheral wall of the cylinder (11), the left end cap (13) is arranged at the left end of the cylinder (11), the right end cap (14) is arranged at the right end of the cylinder (11), the base (15) and the right end cap (14) are connected, and a positioning part (151) is protruding on the base (15). The welding fixing device includes: The work platform (2) has a sliding groove (21) on it; A first base (3) is provided for placing the cylinder (11) of the spring cylinder (1). A roller assembly is rotatably arranged on the first base (3) for contacting the cylinder (11). The roller assembly enables the cylinder (11) to rotate circumferentially. The first base (3) is slidably arranged in a groove (21). The second base (4) is slidably arranged in the slide groove (21), and the second base (4) is rotatably arranged with an adjusting gear (41); A positioning support (5) is fixedly connected to the working platform (2), and the first base (3) is located between the positioning support (5) and the second base (4). A rotary rail (6) is rotatably connected to a positioning support (5). The rotation center line of the rotary rail (6) and the positioning support (5) coincides with the center line of the cylinder (11). A guide groove (61) is provided on the rotary rail (6) for the lateral movement of the lifting lug (12). The guide groove (61) extends along the axis of the cylinder (11). The lifting lug (12) is slidably arranged in the guide groove (61) by a positioning mandrel (65) passing through it. A positioning seat (62) is rotatably arranged on the end of the rotary rail (6) away from the positioning support (5). A positioning groove (621) is provided on the positioning seat (62) for the placement of the positioning part (151). The positioning seat (62) enables the base (15) to rotate in conjunction with the cylinder (11). The outer peripheral wall of the positioning seat (62) has teeth that match the adjusting gear (41). The teeth of the positioning seat (62) mesh with the adjusting gear (41).

2. The welding and fixing device for the spring cylinder component as described in claim 1, characterized in that: The first base (3) has a clearance groove (31). The roller assembly includes a first roller (32) and a second roller (33). The first roller (32) is rotatably connected to the first base (3), and the second roller (33) is rotatably connected to the first base (3). The cylinder (11) is arranged between the first roller (32) and the second roller (33). The second roller (33) and the first roller (32) both roll in contact with the cylinder (11). The first roller (32) and the second roller (33) are arranged around the clearance groove (31).

3. The welding and fixing device for spring cylinder components as described in claim 1, characterized in that: The welding fixing device also includes a lead screw (7), which is threadedly connected to the first base (3) and rotatably connected to the second base (4). A handwheel (71) is installed on one end of the lead screw (7).

4. The welding and fixing device for the spring cylinder component as described in claim 1, characterized in that: The second base (4) has a positioning plate (42) on its top surface. The positioning plate (42) has an adjustment hole (421) extending vertically. The adjustment gear (41) is arranged in the adjustment hole (421).

5. The welding and fixing device for spring cylinder components as described in claim 1, characterized in that: The welding fixing device also includes an angle adjustment component (8) for adjusting the angle of the rotary rail (6); An angle adjustment hole (63) is provided on one end of the rotary rail (6) near the positioning support (5) to cooperate with the angle adjustment component (8); When the angle of the rotary track (6) is fixed, the angle adjustment member (8) is inserted into the angle adjustment hole (63).

6. The welding and fixing device for the spring cylinder component as described in claim 5, characterized in that: The positioning support (5) has an arc-shaped adjustment cavity (51). The center of the adjustment cavity (51) and the center of the cylinder (11) are arranged coaxially. The angle adjustment component (8) is arranged in the adjustment cavity (51) and can move along the adjustment cavity (51).

7. The welding and fixing device for the spring cylinder component as described in claim 5, characterized in that: The angle adjustment component (8) includes an adjustment rod (81), a return spring (82), a sleeve (83), a locking nut (84), and a cotter pin (85). A limiting portion (831) protrudes from the sleeve (83). The outer peripheral wall of the sleeve (83) has a threaded section (832) that matches the locking nut (84). The locking nut (84) and the threaded section (832) of the sleeve (83) are threadedly connected. The sleeve (83) is arranged within the adjustment cavity (51), and the positioning support (5) is located between the limiting portion (831) and the locking pin. Between the tightening nuts (84), the sleeve (83) has a pin cavity (833) for moving the cotter pin (85). The pin cavity (833) extends axially along the sleeve (83). The cotter pin (85) and the adjusting rod (81) are fixedly connected, and the cotter pin (85) is located in the pin cavity (833). The return spring (82) is sleeved on the adjusting rod (81) and is located in the sleeve (83). One end of the return spring (82) abuts against the sleeve (83) and the other end abuts against the adjusting rod (81).

8. The welding and fixing device for the spring cylinder component as described in claim 7, characterized in that: The pin cavity (833) has a positioning cavity (834) at the end away from the positioning support (5).

9. The welding and fixing device for the spring cylinder component as described in claim 1, characterized in that: The dimensional scale (64) on the rotary track (6) is used to indicate the position of the lug (12).

10. The welding and fixing device for the spring cylinder component as described in claim 1, characterized in that: A baffle (66) is rotatably arranged on the rotary rail (6), and the other end of the baffle (66) is fitted and connected to the rotary rail (6). A gap is formed between the rotary rail (6) and the baffle (66) for fixing the lifting lug (12).

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