Automatic butt welding jig for spring ends

Abstract

The invention relates to the technical field of spring welding jigs, in particular to a spring end automatic butt welding jig which comprises a jig supporting mechanism, two spring calibration mechanisms installed on the jig supporting mechanism, two spring bodies arranged in the two spring calibration mechanisms and a spring end welding assisting mechanism installed in the middle of the jig supporting mechanism. And the spring end welding aid mechanism is positioned between the two groups of spring calibration mechanisms. A jig supporting mechanism is installed on a workbench, two sets of spring calibration mechanisms which are symmetrically distributed are installed on the jig supporting mechanism till two to-be-welded spring bodies are clamped into the two sets of spring calibration mechanisms correspondingly, and when the two spring bodies rotate till the ends are in butt joint and pressed, the two to-be-welded spring bodies are clamped into the two sets of spring calibration mechanisms correspondingly; and at the moment, the compressive strength of the butt joint part of the two spring main bodies can be kept stable, the situation that the butt joint part of the two spring main bodies is pressed too much to cause deformation compression on follow-up welding is avoided, and therefore the problem of internal stress of the two springs after welding is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of spring welding jigs, in particular to an automatic butt welding jig for spring ends. Background Art

[0002] A spring is a mechanical part that works by utilizing elasticity. Parts made of elastic materials deform under the action of external force and return to their original shape after the external force is removed. To meet industrial needs, the welding of multiple springs requires the use of specific jigs until the springs are made into mechanical springs or electrical springs after welding.

[0003] Currently, before welding springs, the selected ends of the two springs need to be butt-jointed in advance, and a jig is used to apply pressure to the butt joint of the two springs until it remains stable. The existing process only applies a clamping force to the spring ends, but this clamping method increases the pressure on the two spring ends. Once the two springs are welded and melted, the internal stress of the two spring butt joints will change due to the influence of the clamping force, and the spring butt joints are prone to certain deformation. At the same time, the overflow of the spring welded ends will increase the difficulty of subsequent grinding after cooling.

[0004] In view of this, a spring end automatic butt welding fixture is designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related art.

[0006] To this end, the technical solution adopted in the present invention is: 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0007] In a preferred embodiment of the present invention, the spring-end welding mechanism may be further configured as follows: the spring-end welding mechanism includes a bracket fixedly mounted in the middle of the beam plate, a positioning rod mounted on the top of the bracket, a cushion member movably mounted on the outside of the positioning rod, a hydraulic member fixedly mounted in two sets of clamping plates on the back of the cushion member, a support frame mounted on the hydraulic member, and two force arms movably mounted on the support frame; The cushion is provided with a slideway inside, and two first compression springs symmetrically distributed are fixedly installed on the inner wall of the slideway, and two movable splints are movably installed inside the slideway, and sleeves are fixedly installed on the inner sides of the movable splints; The two force arms are movably mounted on two movable splints respectively.

[0008] In a preferred embodiment, the present invention can be further configured as follows: a chassis is fixedly mounted on the front of the cushion, a motor is fixedly mounted inside the chassis, four clamps are fixedly mounted on the front of the cushion, a linkage rod is movably mounted in the four clamps, a sliding column is fixedly mounted on the outside of the linkage rod, a sliding sleeve is movably mounted on the outside of the sliding column, the sliding column is movably mounted in the sliding sleeve, and a U-shaped support rod is mounted on the sliding column; An annular cavity is opened inside the sleeve, and a scraper is movably installed inside the annular cavity, a vertical rod is fixedly installed on the scraper, and a fixed plate is fixedly installed outside the sleeve, and the top end of the vertical rod is adapted to pass through the fixed plate, and a second compression spring is provided on the outside of the vertical rod.

[0009] In a preferred embodiment, the present invention can be further configured as follows: a vertical groove is formed on the outer wall of the sleeve, and the outer end of the scraper blade is adapted to penetrate into the vertical groove; The top and bottom ends of the inner side of the scraper are both provided with semicircular blade edges.

[0010] In a preferred example, the present invention can be further configured as follows: a circular gasket is fixedly installed on one end of the U-shaped support rod that passes through the inside of the annular cavity, and the circular gasket is adapted to bear pressure on the bottom of the two scrapers after closing.

[0011] In a preferred embodiment of the present invention, the jig support mechanism may be further configured as follows: the jig support mechanism further includes two pads fixedly mounted on the bottoms of both ends of the beam plate, a first screw rod movably mounted in the middle of the beam plate, a bracket mounted on the threaded section of the first screw rod, and two traction members movably mounted on both ends of the first screw rod; Both ends of the beam plate are provided with transverse grooves.

[0012] In a preferred example, the present invention can be further configured as follows: the spring calibration mechanism further includes a clamping member fixedly mounted on the bottom of the load-bearing base, and the clamping member is adapted to be clamped to the outside of the beam plate; Two symmetrically distributed edge guard plates are fixedly installed on both sides of the top of the load-bearing base, and the edge guard plates and the top surface of the load-bearing base form a U-shaped groove, and the plates in the stabilization slide seat are adapted to penetrate into the U-shaped groove.

[0013] In a preferred example, the present invention can be further configured as follows: two symmetrically distributed arc-shaped through holes are opened inside the spring end collar pad, and the arc-shaped through holes are used to guide the input and output of the spring main body end and enhance the stability of the two spring main body ends after docking.

[0014] In a preferred example, the present invention can be further configured as follows: an inwardly recessed annular groove is provided on the side of the stabilizing slide toward the spring end collar pad, and the annular groove is used to provide stabilizing protection for the portion of the spring body away from the welding end.

[0015] In a preferred example, the present invention can be further configured as follows: a chuck is fixedly mounted on the outside of the built-in guide rod, and the chuck is movably mounted on the other end of the bracket.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. The present invention installs a jig support mechanism on a workbench, and installs two sets of symmetrically distributed spring calibration mechanisms on the jig support mechanism until the two spring bodies to be welded are respectively clamped inside the two sets of spring calibration mechanisms. When the two spring bodies are rotated until the ends are butted and pressed tightly, the compressive strength of the butt joint of the two spring bodies will remain stable, avoiding excessive pressure on the butt joint of the two spring bodies and causing deformation and oppression on subsequent welding, thereby ensuring the problem of internal stress of the two springs after welding.

[0017] 2. The present invention arranges two symmetrically distributed sleeves on the outside of the welding parts of the two spring bodies until the two sleeves are adapted and closed to the spring welding parts. As the spring end welding mechanism adapts and constrains the two spring welding parts, the running motor will drive the sliding column and the sliding sleeve. Finally, the sliding column movably installed in the sliding sleeve will drive the U-shaped support rod and the two closed scrapers to extend back and forth, thereby effectively punching out the overflow at the spring welding parts, thereby reducing subsequent processes.

[0018] 3. The present invention adjusts the two second screws to rotate forward until the two stabilizing slides move along the threaded sections of the two second screws. The two stabilizing slides then approach the spring end welding mechanism. Ultimately, the two stabilizing slides apply an extrusion force to the two spring bodies. The punched and cooled springs can be tested for strength under the extrusion of the two stabilizing slides. Finally, the springs that pass the test can be rotated and withdrawn from the two spring end grommet pads. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the present invention when in use; Figure 2 It is a bottom view schematic diagram of the present invention; Figure 3 For the present invention Figure 1 Explosion diagram of Figure 4 is a schematic diagram of the jig support mechanism of the present invention; Figure 5 is a schematic diagram of a spring calibration mechanism of the present invention; Figure 6 For the present invention Figure 5 Explosion diagram of Figure 7 Schematic diagram of the spring-end soldering mechanism of the present invention; Figure 8 Schematic diagram of the explosion of the spring end soldering mechanism of the present invention; Figure 9 For the present invention Figure 8 Explosion diagram of Figure 10 For the present invention Figure 9 Enlarged schematic diagram of point A in the middle.

[0020] Reference numerals: 100, fixture support mechanism; 110, beam plate; 120, pad; 130, first screw rod; 1301, bracket; 1302, traction member; 200, spring calibration mechanism; 210, load-bearing base; 2101, edge guard; 2102, cover; 2103, clamp; 220, spring end collar; 230, built-in guide rod; 2301, chuck; 240, second screw rod; 250, limit rod; 260, stabilization slide; 300, spring body; 400, spring-end soldering mechanism; 410, bracket; 4101, positioning rod; 4102, gasket; 4103, first compression spring; 4104, clamp; 4105, linkage rod; 4106, sliding column; 4107, sliding sleeve; 4108, sliding column; 4109, U-shaped support rod; 420, hydraulic component; 4201, support frame; 4202, lever arm; 430, motor; 440, movable splint; 450, sleeve; 4501, fixed plate; 4502, scraper; 4503, vertical rod; 4504, second compression spring; 4505, annular cavity. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0022] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0023] An automatic butt welding jig for spring ends provided by some embodiments of the present invention will be described below with reference to the accompanying drawings. Example 1:

[0024] Combine Figures 1 to 10 As shown, the present invention provides an automatic butt welding jig for spring ends, comprising a jig support mechanism 100, two sets of spring calibration mechanisms 200 installed on the jig support mechanism 100, two spring bodies 300 arranged in the two sets of spring calibration mechanisms 200, and a spring end welding mechanism 400 installed in the middle of the jig support mechanism 100, and the spring end welding mechanism 400 is located in the middle of the two sets of spring calibration mechanisms 200. The jig support mechanism 100 is used to provide stabilizing support for the two sets of spring calibration mechanisms 200, the two sets of spring calibration mechanisms 200 are used to provide calibration clamping for the two spring bodies 300, and the spring end welding mechanism 400 is used to perform overflow punching for the ends of the two spring bodies 300 after butt welding.

[0025] The fixture support mechanism 100 includes a beam plate 110, two foot pads 120 fixedly mounted at the bottom of each end of the beam plate 110, a first screw rod 130 movably mounted in the middle of the beam plate 110, a bracket 1301 mounted on the threaded section of the first screw rod 130, and two traction members 1302 movably mounted at each end of the first screw rod 130. Both ends of the beam plate 110 are provided with transverse grooves; The spring calibration mechanism 200 includes a load-bearing base 210 mounted on the top of the beam plate 110, and there are two load-bearing bases 210, a cover plate 2102 fixedly mounted on the outer end of the load-bearing base 210, a second screw rod 240 movably mounted inside the cover plate 2102, a stabilizing slide 260 mounted on the threaded section of the second screw rod 240, an internal guide rod 230 movably mounted inside the second screw rod 240, a spring end collar pad 220 mounted on the inner end of the internal guide rod 230, and a limiting rod 250 inserted into the internal stabilizing slide 260, with the inner end of the limiting rod 250 adapted to pass through the spring end collar pad 220, and a clamping member 2103 fixedly mounted on the bottom of the load-bearing base 210, and the clamping member 2103 adapted to be clamped to the outside of the beam plate 110; Two symmetrically distributed edge guards 2101 are fixedly installed on both sides of the top of the load-bearing base 210, and the edge guards 2101 and the top surface of the load-bearing base 210 form a U-shaped groove. The plate in the stabilizing slide 260 fits through the U-shaped groove. The spring body 300 is located outside the limiting rod 250 and is adapted to bear pressure between the stabilizing slide 260 and the spring end collar pad 220. The spring end collar pad 220 has two symmetrically distributed arc-shaped through holes inside. These arc-shaped through holes are used to guide the input and output of the ends of the spring body 300 and enhance the stability of the two ends of the spring body 300 after docking. The spring end fluxing mechanism 400 is used to perform overflow punching for the welding parts of the two spring bodies 300.

[0026] The two footrests 120 are pre-bolted onto the workbench until the beam 110 fixed to the top of the two footrests 120 is horizontally positioned. The first screw rod 130 is then adjusted to rotate inversely. At this time, the bracket 1301 descends along the threaded section of the first screw rod 130. Finally, the two traction members 1302 at both ends of the bracket 1301 extend downward. The two traction members 1302 pull the two clamps 2301 inward, and the two spring-end tie pads 220 installed at the inner ends of the two built-in guide rods 230 move toward the spring-end soldering mechanism 400. Then, the two second screw rods 240 are adjusted to reverse direction, and the two stabilizing slides 260 will move outward along the threaded sections of the two second screw rods 240. Then, the limiting rod 250 is pulled outward, and the spring body 300 is clamped between the stabilizing slide 260 and the spring end collar pad 220. Then, the limiting rod 250 is inserted along the stabilizing slide 260 until the inner end of the limiting rod 250 is reset and inserted into the spring end collar pad 220. At this time, the spring body 300 can be effectively calibrated and supported, and the two spring bodies 300 after rotation adjustment can maintain a sufficiently constant pressure to achieve a tight connection. Then, the welding device can be used to perform circumferential soldering treatment on the butt ends of the two spring bodies 300 until the butt ends of the two spring bodies 300 are effectively welded. At this time, the internal stress of the butt ends of the two spring bodies 300 can be kept constant after welding, and at the same time, the two spring bodies 300 can be prevented from being deformed due to excessive pressure after welding. Example 2:

[0027] Combine Figures 4 to 10 As shown, based on Example 1, the spring-end welding mechanism 400 includes a bracket 410 fixedly mounted in the middle of the beam plate 110, a positioning rod 4101 mounted on the top of the bracket 410, a pad 4102 movably mounted on the outside of the positioning rod 4101, a hydraulic component 420 fixedly mounted in two sets of clamping plates on the back of the pad 4102, a support frame 4201 mounted on the hydraulic component 420, and two force arms 4202 movably mounted on the support frame 4201; A slideway is provided inside the cushion 4102, and two first compression springs 4103 are fixedly installed on the inner wall of the slideway in a symmetrical manner. Two movable splints 440 are movably installed inside the slideway, and a sleeve 450 is fixedly installed on the inner side of the movable splint 440. The two force arms 4202 are movably mounted on the two movable clamping plates 440 respectively.

[0028] Preferably, the pad 4102 is in a cross-shaped structure, and the bottom end of the bracket 410 is welded to the top of the beam plate 110, wherein a notch is provided in the middle of the inner side of the movable clamping plate 440.

[0029] Specifically, use a wrench to adjust the nut on the threaded section of the positioning rod 4101. When the nut is loose, control the gasket 4102 to adjust the inclination along the welding part of the two spring bodies 300. After the two sleeves 450 remain parallel to the welding parts of the two spring bodies 300, tighten the nut until the angle between the gasket 4102 and the bracket 410 is constant. Then operate the hydraulic component 420 until the hydraulic sub-rod in the hydraulic component 420 extends and cooperates with the support frame 4201 to push the two force arms 4202. At this time, the two force arms 4202 will control the relative extension of the two movable splints 440.

[0030] A chassis is fixedly mounted on the front of the cushion 4102, and a motor 430 is fixedly mounted inside the chassis, along with four clamps 4104 fixedly mounted on the front of the cushion 4102, a linkage rod 4105 movably mounted within the four clamps 4104, a sliding post 4106 fixedly mounted on the outside of the linkage rod 4105, a sliding sleeve 4107 movably mounted on the outside of the sliding post 4106, a sliding post 4108 movably mounted within the sliding sleeve 4107, and a U-shaped support rod 4109 mounted on the sliding post 4108. An annular cavity 4505 is defined within the sleeve 4500, within which a scraper 4502 is movably mounted. A vertical rod 4503 is fixedly mounted on the scraper 4502, and a fixing plate 4501 is fixedly mounted on the outside of the sleeve 4500. The top end of the vertical rod 4503 fits within the fixing plate 4501, and a second compression spring 4504 is disposed on the outside of the vertical rod 4503. A vertical groove is formed on the outer wall of the sleeve 450, and the outer end of the scraper 4502 fits into the vertical groove; The top and bottom of the scraper 4502 are both provided with semicircular cutting edges; A circular gasket is fixedly installed on one end of the U-shaped support rod 4109 that passes through the annular cavity 4505, and the circular gasket is adapted to bear pressure on the bottom of the two scrapers 4502 after closing.

[0031] Preferably, a driving gear is installed at the bottom end of the transmission shaft in the motor 430 , the linkage rod 4105 is composed of a guide rod and a transmission gear, and the driving gear is adapted to engage with the transmission gear, and the linkage rod 4105 is located at the center of the inner notch of the movable splint 440 .

[0032] Specifically, when the two force arms 4202 control the two movable splints 440 to close, the two sleeves 450 fixed on the inner side of the two movable splints 440 can quickly clamp along the welding parts of the two spring bodies 300. As the U-shaped support rod 4109 is compressed and extends back and forth, the two closed scrapers 4502 will be compressed and effectively punch out the overflow along the welding parts of the two spring bodies 300. Example 3:

[0033] Combine Figures 1 to 6 As shown, in the above embodiment, the stabilizing slide 260 is provided with an inwardly recessed annular groove on one side facing the spring end collar pad 220, and the annular groove is used to provide stabilizing protection for the portion of the spring body 300 away from the welding end. A clamp 2301 is fixedly mounted on the outside of the built-in guide rod 230 , and the clamp 2301 is movably mounted on the other end of the bracket 1301 .

[0034] Preferably, a non-slip pad is fixedly installed on the side of the stabilizing slide 260 facing the spring end collar pad 220. When the spring body 300 is pressed against the non-slip pad at one end away from the spring end soldering mechanism 400, the two spring bodies 300 that are rotated and docked can be effectively pressed by the two stabilizing slides 260, and the limiting rod 250 that passes through the stabilizing slide 260 and the spring end collar pad 220 can enhance the stability of the spring body 300 after calibration.

[0035] The working principle and usage process of the present invention are as follows: two footrests 120 are pre-fixed to a workbench with bolts, and a horizontal beam plate 110 fixed on top of the two footrests 120 provides a stable support carrier for the two sets of spring calibration mechanisms 200. Then, the first screw rod 130 is adjusted until the bracket 1301 drives the two traction members 1302 to extend along the threaded section of the first screw rod 130. At this time, the two traction members 1302 drive the two chucks 2301 to move laterally relative to each other, and the internal guide rod 230 installed in the chuck 2301 and placed horizontally pushes the spring end collar pad 220 to move along the inside of the load-bearing base 210. After the distance between the two spring end collar pads 220 and the two load-bearing bases 210 is adjusted, the two second screw rods 240 are adjusted until the second screw rods 240 are reversed. The stabilizing slide 260 is pushed closer to the cover plate 2102 until the distance between the stabilizing slide 260 and the spring end collar pads 220 is expanded. Then, the limiting rod 250 is stretched outward until the inner end of the limiting rod 250 is pulled out from the spring end collar pads 220. Then, the two spring bodies 300 to be welded are placed between the two sets of stabilizing slides 260 and the spring end collar pads 220, and then the two limiting rods 250 are reset. Then adjust the two second screw rods 240 to rotate forward, and control the two spring bodies 300 to rotate until the ends of the two spring bodies 300 to be welded move toward the center position of the two spring end collar pads 220. After the ends of the two spring bodies 300 are adapted and fitted, use the positioning rod 4101 to control the inclination angle of the pad 4102 and the two sleeves 450 until the two sleeves 450 are tilted and maintain the same angle with the docking ends of the two spring bodies 300. Then operate the hydraulic component 420 until the hydraulic sub-rod in the hydraulic component 420 extends and cooperates with the support frame 4201 to pull the two force arms 4202. The two force arms 4202 will pull the two movable splints 440 and the two sleeves 450 outward. Then the worker uses the welding device to weld the docking ends of the two spring bodies 300. When the two spring bodies 300 are butt-jointed and welded, the hydraulic component 420 is operated. As the hydraulic sub-rod in the hydraulic component 420 extends and cooperates with the support frame 4201 to push the two force arms 4202, combined with the lateral pressure of the two first compression springs 4103, the two movable splints 440 and the two sleeves 450 will quickly close outside the butt-jointed ends of the two spring bodies 300. Then the motor 430 is started, and the linkage rod 4105 and the sliding column 4106 driven by the motor 430 will maintain a constant speed to assist the thrust. The sliding column 4106 extends back and forth, and finally the sliding column 4108 which is clamped in the sliding groove of the outer wall of the sliding column 4106 will drive the U-shaped support rod 4109 to extend at a high frequency, and the end of the U-shaped support rod 4109 that penetrates into the annular cavity 4505 will be under pressure on the two scrapers 4502 after closing, and the two scrapers 4502 pressurized by the U-shaped support rod 4109 will slide back and forth along the outer wall of the welding end of the two spring bodies 300, and finally the overflow of the outer wall of the welding end of the two spring bodies 300 can be effectively punched out.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A spring end automatic butt welding jig, comprising a jig support mechanism (100), characterized in that: It also includes two sets of spring calibration mechanisms (200) installed on the jig support mechanism (100), two spring bodies (300) arranged in the two sets of spring calibration mechanisms (200), and a spring end soldering mechanism (400) installed in the middle of the jig support mechanism (100), wherein the spring end soldering mechanism (400) is located in the middle of the two sets of spring calibration mechanisms (200); The jig support mechanism (100) comprises a beam plate (110); The spring calibration mechanism (200) includes a load-bearing base (210) mounted on the top of the beam plate (110), and the number of the load-bearing bases (210) is two, a cover plate (2102) fixedly mounted on the outer end of the load-bearing base (210), a second screw rod (240) movably mounted inside the cover plate (2102), a stabilizing slide (260) mounted on the threaded section of the second screw rod (240), an internal guide rod (230) movably mounted inside the second screw rod (240), a spring end collar pad (220) mounted on the inner end of the internal guide rod (230), and a limiting rod (250) plugged into the inside of the stabilizing slide (260), wherein the inner end of the limiting rod (250) is adapted to penetrate into the spring end collar pad (220); The spring body (300) is located outside the limiting rod (250) and is adapted to bear pressure between the stabilizing slide seat (260) and the spring end collar pad (220); The spring end soldering mechanism (400) is used for punching out overflow at the welding locations of the two spring bodies (300).

2. The spring end automatic butt welding jig according to claim 1, characterized in that: The spring-end welding mechanism (400) comprises a bracket (410) fixedly mounted in the middle of the beam plate (110), a positioning rod (4101) mounted on the top of the bracket (410), a cushion (4102) movably mounted on the outside of the positioning rod (4101), a hydraulic component (420) fixedly mounted in two groups of clamping plates on the back of the cushion (4102), a support frame (4201) mounted on the hydraulic component (420), and two force arms (4202) movably mounted on the support frame (4201); The cushion (4102) is provided with a slideway inside, and two symmetrically distributed first compression springs (4103) are fixedly installed on the inner wall of the slideway, and two movable splints (440) are movably installed inside the slideway, and a sleeve (450) is fixedly installed on the inner side of the movable splint (440); The two force arms (4202) are movably mounted on the two movable splints (440) respectively.

3. The spring end automatic butt welding jig according to claim 2, characterized in that: The front of the cushion (4102) is fixedly mounted with a chassis, and the interior of the chassis is fixedly mounted with a motor (430), four clamps (4104) fixedly mounted on the front of the cushion (4102), a linkage rod (4105) movably mounted in the four clamps (4104), a sliding column (4106) fixedly mounted on the outside of the linkage rod (4105), a sliding sleeve (4107) movably mounted on the outside of the sliding column (4106), a sliding column (4108) movably mounted in the sliding sleeve (4107), and a U-shaped support rod (4109) mounted on the sliding column (4108); An annular cavity (4505) is provided inside the sleeve (450), and a scraper (4502) is movably installed inside the annular cavity (4505), a vertical rod (4503) is fixedly installed on the scraper (4502), and a fixed plate (4501) is fixedly installed outside the sleeve (450), and the top end of the vertical rod (4503) is adapted to pass through the fixed plate (4501), and a second compression spring (4504) is provided outside the vertical rod (4503).

4. The spring end automatic butt welding jig according to claim 3, characterized in that: A vertical groove is formed on the outer wall of the sleeve (450), and the outer end of the scraper (4502) is adapted to penetrate into the vertical groove; Semicircular blades are provided at the top and bottom ends of the inner side of the scraper (4502).

5. The spring end automatic butt welding jig according to claim 3, characterized in that: A circular gasket is fixedly installed on one end of the U-shaped support rod (4109) that passes through the inside of the annular cavity (4505), and the circular gasket is adapted to bear pressure on the bottom of the two scrapers (4502) after closing.

6. The spring end automatic butt welding jig according to claim 1, characterized in that: The jig support mechanism (100) further comprises two pads (120) fixedly mounted on the bottoms of both ends of the beam plate (110), a first screw rod (130) movably mounted in the middle of the beam plate (110), a bracket (1301) mounted on the threaded section of the first screw rod (130), and two traction members (1302) movably mounted on both ends of the first screw rod (130); Both ends of the beam plate (110) are provided with transverse grooves.

7. The spring end automatic butt welding jig according to claim 1, characterized in that: The spring calibration mechanism (200) further comprises a clamping member (2103) fixedly mounted on the bottom of the load-bearing base (210), and the clamping member (2103) is adapted to be clamped on the outside of the beam plate (110); Two symmetrically distributed edge guard plates (2101) are fixedly mounted on both sides of the top of the load-bearing base (210), and the edge guard plates (2101) and the top surface of the load-bearing base (210) form a U-shaped groove, and the plate in the stabilizing slide (260) is adapted to penetrate into the U-shaped groove.

8. The spring end automatic butt welding jig according to claim 1, characterized in that: Two symmetrically distributed arc-shaped through holes are provided inside the spring end collar pad (220), and the arc-shaped through holes are used to guide the input and output of the ends of the spring main body (300) and enhance the stability of the two spring main body (300) ends after docking.

9. The spring end automatic butt welding jig according to claim 1, characterized in that: The stabilizing slide seat (260) is provided with an inwardly recessed annular groove on one side facing the spring end collar pad (220), and the annular groove is used to provide stabilizing protection for a portion of the spring body (300) away from the welding end.

10. The spring end automatic butt welding jig according to claim 1, characterized in that: A chuck (2301) is fixedly mounted on the outside of the built-in guide rod (230), and the chuck (2301) is movably mounted on the other end of the bracket (1301).

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