Spring end welding jig

Abstract

The utility model discloses a spring end welding jig, relates to spring production technical field, the spring end welding jig includes base, locating table and drive subassembly, base is equipped with mounting cavity, locating table is movably installed in mounting cavity, and the locating table and mounting cavity enclose to form locating ring slot, locating ring slot is used for placing spring, drive subassembly is equipped with drive subassembly, the drive subassembly is equipped with drive subassembly. The positioning table is provided with a friction abutting part protruding towards the positioning ring groove, the friction abutting part is used for abutting against one end of the spring, and the driving assembly is arranged on the base and connected with the positioning table; the driving assembly is used for driving the positioning table to rotate in the mounting cavity, so that one end of the spring is in butt joint with the other end of the spring. According to the technical scheme provided by the utility model, the problem that the head end and the tail end of the spring are butted manually and are difficult to be butted accurately in the existing welding process of the spring is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring production, in particular to a spring end welding jig. Background Art

[0002] After the spring is cut into long strips, the two ends of the long strip spring need to be welded to form a ring spring. In the related art, the welding process of the spring is to manually connect the head and tail ends of the spring. One operator holds the head and tail ends of the spring and bends the spring into a circle shape, and another operator welds and fixes the head and tail ends of the spring, and finally makes the spring into a ring spring. However, this method uses manual docking, which is difficult to accurately dock, resulting in low welding accuracy and easy to affect the welding quality. Utility Model Content

[0003] The main purpose of the utility model is to provide a spring end welding fixture, aiming to solve the problem that the existing spring welding process adopts manual butt jointing of the head and tail ends of the spring, which is difficult to accurately position.

[0004] To achieve the above-mentioned purpose, the utility model proposes a spring end welding fixture, comprising: a base, the base is provided with an installation cavity; a positioning platform, the positioning platform is movably installed in the installation cavity, and is surrounded with the installation cavity to form a positioning ring groove, the positioning ring groove is used to place the spring, the positioning platform is provided with a friction support portion protruding toward the positioning ring groove, the friction support portion is used to support one end of the spring; and a driving component, the driving component is arranged on the base and connected to the positioning platform; wherein the driving component is used to drive the positioning platform to rotate in the installation cavity so that one end of the spring is docked with the other end.

[0005] In one embodiment, the friction supporting portion is made of silicone material.

[0006] In one embodiment, the positioning platform includes a base portion that is relatively arranged and a raised portion that is arranged on the top of the base portion, the top surface of the base portion and the side surface of the raised portion and the wall surface of the mounting cavity enclose the positioning ring groove, the friction supporting portion is arranged on the raised portion, and the driving assembly is connected to the base portion.

[0007] In one embodiment, the width of the positioning ring groove at the friction abutment portion is smaller than the width outside the friction abutment portion.

[0008] In one embodiment, the base includes a bottom plate and a fixing seat, the fixing seat is fixedly connected to the bottom plate, and the fixing seat is provided with the installation cavity; the base also includes a limit block, the fixing seat is provided with a mounting groove connected to the installation cavity, the limit block is arranged in the mounting groove and partially protrudes in the installation cavity; the outer wall of the positioning platform is provided with a limit groove, the width of the limit block is smaller than the width of the limit groove, and the limit block extends into the limit groove.

[0009] In one embodiment, a plurality of the installation cavities are provided, a plurality of the positioning platforms are provided, and the installation cavities and the positioning platforms are provided in a one-to-one correspondence; and the driving assembly is connected to the plurality of positioning platforms.

[0010] In one embodiment, the driving assembly includes a sliding member and a lever, the sliding member is movably disposed on the base, one end of the lever is connected to the sliding member, a lever groove is provided on a side of the positioning platform facing the sliding member, the other end of the lever extends into the lever groove, and the sliding member is used to drive the lever to rotate, thereby driving the positioning platform to rotate.

[0011] In one embodiment, there are multiple shifting rods, which are spaced apart on the sliding member; there are multiple mounting cavities, there are multiple positioning platforms, the mounting cavities are arranged in one-to-one correspondence with the positioning platforms, and the shifting rods are connected in one-to-one correspondence with the positioning platforms.

[0012] In one embodiment, it also includes an ejection component, which includes a moving block and a push rod, the moving block is movably arranged on the base, the push rod is connected to the moving block, and the moving block is used to drive the push rod to approach or move away from the positioning platform; a ejection groove is provided on the side of the positioning platform facing the push rod, the top of the ejection groove has a supporting slope, and the end of the push rod has an ejection slope, the ejection slope and the supporting slope are consistent in inclination direction, the push rod extends into the ejection groove, and the ejection slope cooperates with the supporting slope to make the positioning platform move in a direction away from the base, so that the spring in the positioning ring groove is ejected.

[0013] In one embodiment, a plurality of push rods are provided, and the plurality of push rods are arranged at intervals on the moving block; a plurality of mounting cavities are provided, and a plurality of positioning platforms are provided, and the mounting cavities and the positioning platforms are arranged in a one-to-one correspondence, and the push rods and the positioning platforms are arranged in a one-to-one correspondence.

[0014] Compared with the prior art, the spring end welding fixture provided by the utility model has the following beneficial effects:

[0015] The technical solution of the utility model is to set up a rotating positioning platform, on which a positioning ring groove for placing a spring is opened, and a friction supporting part is provided on the positioning platform, which supports one end of the spring. When the driving component drives the positioning platform to rotate, the friction supporting part and the end of the spring generate friction force. The friction supporting part can drive one end of the spring to rotate through the friction force and dock with the other end of the spring, so that the head end and the tail end of the spring can be accurately docked, making the welding more precise, thereby improving the accuracy of welding and the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the spring end welding fixture of the utility model;

[0018] Figure 2 It is a side view of an embodiment of the spring end welding fixture of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of an embodiment of a spring end welding fixture of the utility model;

[0020] Figure 4 This is one of the exploded schematic diagrams of an embodiment of the spring end welding fixture of the utility model;

[0021] Figure 5 This is the second exploded schematic diagram of an embodiment of the spring end welding fixture of the utility model.

[0022] Description of Figure Numbers:

[0023] 100. Spring end welding fixture; 10. Base; 11. Bottom plate; 12. Fixed seat; 121. Mounting cavity; 122. Avoidance hole; 123. Avoidance groove; 13. Limiting block; 14. Outer ring; 20. Positioning platform; 21. Positioning ring groove; 22. Friction support portion; 23. Base portion; 24. Raised portion; 25. Toggle groove; 26. Push-out groove; 27. Limiting groove; 30. Driving assembly; 31. Sliding member; 311. Fixed block; 312. Raised block; 3121. Slotted; 3122. Arc groove; 32. Toggle rod; 33. Slide rail; 40. Push-out assembly; 41. Moving block; 42. Push rod; 43. Elastic member; 200. Spring.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] Please refer to Figures 1 to 5 The utility model proposes a spring end welding fixture 100, comprising: a base 10, the base 10 is provided with an installation cavity 121; a positioning platform 20, the positioning platform 20 is movably installed in the installation cavity 121, and is surrounded with the installation cavity 121 to form a positioning ring groove 21, the positioning ring groove 21 is used to place a spring 200, the positioning platform 20 is provided with a friction abutment portion 22 protruding toward the positioning ring groove 21, and the friction abutment portion 22 is used to abut against one end of the spring 200; and a driving component 30, the driving component 30 is arranged on the base 10 and connected to the positioning platform 20; wherein the driving component 30 is used to drive the positioning platform 20 to rotate in the installation cavity 121 so that one end of the spring 200 is docked with the other end.

[0029] Specifically, the base 10 is used to install the positioning platform 20, which is rotatable in the installation cavity 121. A slot is provided on the top of the positioning platform 20, so that the positioning platform 20 and the installation cavity 121 enclose a positioning ring groove 21 for placing the spring 200. The long strip spring 200 is placed in the positioning ring groove 21 to bend it into a circular ring shape.

[0030] A friction abutment 22 is provided on the positioning platform 20, and the friction abutment 22 abuts against at least one end of the spring 200, and the friction abutment 22 can provide friction with the spring 200. When the driving assembly 30 drives the positioning platform 20 to rotate in the installation cavity 121, the friction abutment 22 rotates together, and the friction abutment 22 can drive one end of the spring 200 to rotate and dock with the other end of the spring 200. The spring 200 is positioned through the positioning ring groove 21, and one end of the spring 200 is driven to rotate by the friction abutment 22, so that the head end and the tail end of the spring 200 can be accurately docked, and the docking is more accurate. When the spring 200 is subsequently welded, it can be welded accurately, which improves the welding accuracy and improves the product quality.

[0031] The positioning platform 20 can be rotatably connected to the base 10 via a rotating shaft, or can be directly placed in the installation cavity 121 and driven to rotate by the driving component 30. The driving component 30 can be set as a motor or a rotating rod, and can be manually operated. The specific driving method can be selected according to actual needs.

[0032] The friction supporting part 22 is used to provide friction to the spring 200. The friction supporting part 22 can be a component that can provide friction, such as rubber or silicone. The specific type and structure can be set according to actual needs. It can contact the spring 200 and drive the spring 200 to rotate.

[0033] The technical solution of the utility model is to set a rotating positioning platform 20, on which a positioning ring groove 21 for placing the spring 200 is opened, and a friction supporting portion 22 is provided on the positioning platform 20, and the friction supporting portion 22 is supported on one end of the spring 200. When the driving component 30 drives the positioning platform 20 to rotate, the friction supporting portion 22 and the end of the spring 200 generate friction force. The friction supporting portion 22 can drive one end of the spring 200 to rotate through the friction force and dock with the other end of the spring 200, so that the head end and the tail end of the spring 200 can be accurately docked, so that the welding is more precise, and the welding accuracy and product quality are improved.

[0034] In the embodiment of the present invention, the friction supporting portion 22 is made of silicone material.

[0035] It is worth noting that the friction abutment 22 is made of silicone material, which is soft and deformable, and can effectively contact the spring 200, thereby generating sufficient friction to drive one end of the spring 200 to rotate, and will not cause wear or damage to the spring 200. The structure is simple and practical. In one embodiment, a connecting groove is concavely provided on the top of the positioning platform 20, and the friction abutment 22 is connected to the connecting groove and contacts the spring 200.

[0036] In addition, a wall surface of the friction abutting portion 22 facing the spring 200 may be provided with a groove texture to increase friction and better drive one end of the spring 200 to rotate.

[0037] In an embodiment of the utility model, the positioning platform 20 includes a base portion 23 arranged opposite to each other and a raised portion 24 arranged on the top of the base portion 23, the top surface of the base portion 23 and the side surface of the raised portion 24 are enclosed with the wall surface of the mounting cavity 121 to form the positioning ring groove 21, the friction supporting portion 22 is arranged on the raised portion 24, and the driving assembly 30 is connected to the base portion 23.

[0038] In detail, the diameter of the protrusion 24 is smaller than that of the base 23, so a step is formed on the top of the positioning platform 20, so that the top surface of the base 23, the side surface of the protrusion 24 and the wall surface of the installation cavity 121 are surrounded to form a positioning ring groove 21, which can provide a relatively stable seat, which is convenient for placing and positioning the spring 200, and then the spring 200 is driven to rotate through the friction support portion 22. At the same time, by cooperating with the wall surface of the installation cavity 121 to form the positioning ring groove 21, a convenient disassembly starting point is also provided, making it more convenient to repair or replace the positioning platform 20.

[0039] In the embodiment of the present invention, the width of the positioning ring groove 21 at the friction abutment portion 22 is smaller than the width outside the friction abutment portion 22 .

[0040] It is worth noting that the friction supporting portion 22 is arranged to protrude from the surface of the raised portion 24, and the distance between the wall surface of the friction supporting portion 22 and the inner wall of the mounting cavity 121 is narrow, so that the friction supporting portion 22 is supported on the spring 200, which can better drive one end of the spring 200 to rotate, so that one end of the spring 200 can be better docked with the other end.

[0041] In an embodiment of the utility model, the base 10 includes a bottom plate 11 and a fixed seat 12, the fixed seat 12 is fixedly connected to the bottom plate 11, and the fixed seat 12 is provided with the installation cavity 121; the base 10 also includes a limit block 13, the fixed seat 12 is provided with an installation groove (not marked in the figure) connected to the installation cavity 121, the limit block 13 is arranged in the installation groove and partially protrudes in the installation cavity 121; the outer wall of the positioning platform 20 is provided with a limit groove 27, the width of the limit block 13 is smaller than the width of the limit groove 27, and the limit block 13 extends into the limit groove 27.

[0042] Specifically, the positioning platform 20 is installed in the installation cavity 121 of the fixing seat 12, and the positioning platform 20 can rotate relative to the fixing seat 12. Figure 4 and Figure 5 A limit block 13 is arranged in the fixing seat 12, and the limit block 13 is extended in the vertical direction. A limit groove 27 is provided on the positioning platform 20, and the limit groove 27 is arranged to pass through in the vertical direction of the positioning platform 20. At the same time, the width of the limit block 13 is smaller than the width of the limit groove 27. Therefore, when the positioning platform 20 rotates, the limit block 13 can slide relatively in the limit groove 27 along the circumferential direction of the positioning platform 20, and limit the rotation stroke of the positioning platform 20 by abutting against the two side walls of the limit groove 27.

[0043] The cooperation between the limit block 13 and the limit groove 27 can accurately limit the rotation of the positioning platform 20, ensuring that the positioning platform 20 stops accurately at the predetermined position, reducing the error of the docking of the two ends of the spring 200, making the docking of the two ends of the spring 200 more accurate, and at the same time, the installation of the positioning platform 20 in the fixing seat 12 is more stable.

[0044] In addition, if Figure 1 An outer ring 14 is also provided, and the outer ring 14 is fixedly connected to the top of the fixing seat 12. The inner wall of the outer ring 14 is flush with the wall of the installation cavity 121. The inner wall of the outer ring 14 can limit the spring 200 to prevent the spring 200 from escaping from the positioning ring groove 21 during rotation.

[0045] In an embodiment of the present utility model, a plurality of the installation cavities 121 are provided, a plurality of the positioning platforms 20 are provided, and the installation cavities 121 and the positioning platforms 20 are provided in a one-to-one correspondence; the driving assembly 30 is connected to the plurality of positioning platforms 20 .

[0046] It is worth noting that Figure 1, multiple installation cavities 121 and positioning platforms 20 are provided, so multiple springs 200 can be placed at the same time. Multiple outer rings 14 are also provided, and the outer rings 14 and the positioning platforms 20 are arranged one by one. The driving assembly 30 is connected to the multiple positioning platforms 20. After the multiple springs 200 are placed, the multiple positioning platforms 20 can be controlled to rotate by the driving assembly 30 to complete the docking of the multiple springs 200. This design can dock multiple springs 200 at a time, thereby improving production efficiency.

[0047] The driving assembly 30 may be provided with multiple driving parts such as multiple motors or multiple rotating rods, etc., or multiple driving ends may be provided on the same component to connect with the positioning platform 20, so as to simultaneously control the rotation of multiple positioning platforms 20. A single drive completes the docking of multiple springs 200, thus avoiding the error caused by a single docking, reducing the docking time of the springs 200, improving the docking efficiency, improving the consistency of the quality of the springs 200 products, and improving the production efficiency.

[0048] In an embodiment of the utility model, the driving assembly 30 includes a sliding member 31 and a lever 32. The sliding member 31 is movably disposed on the base 10. One end of the lever 32 is connected to the sliding member 31. A lever groove 25 is provided on the side of the positioning platform 20 facing the sliding member 31. The other end of the lever 32 extends into the lever groove 25. The sliding member 31 is used to drive the lever 32 to rotate, so as to drive the positioning platform 20 to rotate.

[0049] Specifically, the driving assembly 30 is provided with a sliding member 31 and a lever 32. The sliding member 31 can move along the base 10. The movement of the sliding member 31 can drive the lever 32 to rotate. Figure 1 and Figure 3 The lever 32 is connected to the shifting groove 25 of the positioning platform 20. The rotation of the lever 32 can drive the positioning platform 20 to rotate. The fixed seat 12 is provided with an avoidance hole 122 facing the lever 32 for the lever 32 to pass through.

[0050] The lever 32 has a simple structure and a low manufacturing cost. The lever 32 can achieve accurate positioning and control of the angle control required by the positioning platform 20, and has simple operation, high reliability and precise control.

[0051] In addition, the driving assembly 30 further includes a slide rail 33 , the slide rail 33 is fixedly connected to the base 10 , and the sliding member 31 is slidably connected to the slide rail 33 , and the movement of the sliding member 31 can be guided by the slide rail 33 .

[0052] There are many ways to drive the lever 32 to rotate by the movable sliding member 31. The sliding member 31 can move in an arc along the base 10 to drive the lever 32 to rotate; or the sliding member 31 can move in a straight line along the base 10, and the lever 32 can move back and forth along the toggle groove 25 at this time, so that the sliding member 31 can drive the lever 32 to rotate, and the lever 32 drives the positioning platform 20 to rotate; the specific method can be selected according to actual needs.

[0053] Provide an embodiment, such as Figure 1 The sliding member 31 includes a fixed block 311 and a protrusion 312. The slide rail 33 is arranged to extend in a straight line along the base 10. The fixed block 311 is slidably connected to the slide rail 33. The protrusion 312 is connected to the fixed block 311 and protrudes toward the positioning platform 20. A slot 3121 is provided in the middle of the protrusion 312, so that the protrusion 312 forms two upper and lower protrusion plates. The two protrusion plates are provided with arc grooves 3122. One end of the lever 32 is connected to a rotating shaft (not shown in the figure). The lever 32 extends into the upper and lower arc grooves 3122 through the two ends of the rotating shaft, so that the lever 32 can move in the arc groove 3122. When the fixed block 311 moves linearly through the slide rail 33, the lever 32 can move forward and backward along the toggle groove 25 through the arc groove 3122, and at the same time, the lever 32 rotates left and right along the arc groove 3122, thereby driving the positioning platform 20 to rotate.

[0054] In an embodiment of the utility model, there are multiple levers 32, and the multiple levers 32 are arranged at intervals on the sliding member 31; there are multiple mounting cavities 121, and there are multiple positioning platforms 20, and the mounting cavities 121 and the positioning platforms 20 are arranged in a one-to-one correspondence; the levers 32 are connected to the positioning platforms 20 in a one-to-one correspondence.

[0055] It is worth noting that Figure 3 A plurality of levers 32 are provided, and the levers 32 are connected to the positioning platforms 20 one by one. The movement of the sliding member 31 can simultaneously drive the plurality of levers 32 to rotate, thereby simultaneously driving the plurality of positioning platforms 20 to rotate, and can simultaneously dock a plurality of springs 200, thereby greatly improving production efficiency.

[0056] In an embodiment of the utility model, it also includes an ejection component 40, which includes a moving block 41 and a push rod 42. The moving block 41 is movably arranged on the base 10, and the push rod 42 is connected to the moving block 41. The moving block 41 is used to drive the push rod 42 to approach or move away from the positioning platform 20; the positioning platform 20 is provided with an ejection groove 26 on the side facing the push rod 42, and the top of the ejection groove 26 has a supporting slope (not marked in the figure), and the end of the push rod 42 has an ejection slope (not marked in the figure), and the ejection slope is consistent with the inclination direction of the supporting slope, and the push rod 42 extends into the ejection groove 26, and cooperates with the supporting slope through the ejection slope, so that the positioning platform 20 moves in a direction away from the base 10, so that the spring 200 in the positioning ring groove 21 is ejected.

[0057] Specifically, Figure 2 and Figure 3 The moving block 41 can drive the push rod 42 to approach or move away from the positioning platform 20. When approaching the positioning platform 20, the push rod 42 will gradually push the positioning platform 20 out of the fixed seat 12 through the cooperation between the pushing inclined surface of the push rod 42 and the supporting inclined surface of the positioning platform 20, thereby allowing the spring 200 in the positioning ring groove 21 to be pushed out, making it easier to remove the spring 200.

[0058] The moving block 41 can be provided with a guide rail to guide the movement of the moving block 41; in one embodiment, Figure 2 An avoidance groove 123 is provided on the fixing seat 12 , and the bottom surface of the push rod 42 abuts against the bottom surface of the avoidance groove 123 , thereby guiding the movement of the push rod 42 .

[0059] In addition, if Figure 2 The ejection assembly 40 also includes an elastic member 43, one end of the elastic member 43 is connected to the moving block 41, and the other end of the elastic member 43 is abutted against the fixing seat 12. The elastic member 43 is used to reset the ejection assembly 40 after it approaches the positioning platform 20 for next use.

[0060] In an embodiment of the utility model, a plurality of push rods 42 are provided, and the plurality of push rods 42 are arranged at intervals on the moving block 41; a plurality of mounting cavities 121 are provided, and a plurality of positioning platforms 20 are provided, and the mounting cavities 121 and the positioning platforms 20 are arranged in a one-to-one correspondence, and the push rods 42 and the positioning platforms 20 are arranged in a one-to-one correspondence.

[0061] It is worth noting that there are multiple push rods 42 for cooperating with multiple positioning tables 20. After the welding of multiple springs 200 is completed, the multiple push rods 42 are driven to move by the moving block 41, so that the springs 200 can be ejected at one time, which improves the overall production efficiency and effectiveness, and ensures the consistency of force and movement of each part during the ejection process, which helps to maintain the stability and uniformity of the quality of the springs 200.

[0062] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A spring end welding fixture, characterized in that: include: A base, wherein the base is provided with a mounting cavity; A positioning platform, wherein the positioning platform is movably installed in the installation cavity and encloses the installation cavity to form a positioning ring groove, wherein the positioning ring groove is used to place a spring, and the positioning platform is provided with a friction abutment portion protruding toward the positioning ring groove, wherein the friction abutment portion is used to abut against one end of the spring; as well as A driving assembly, the driving assembly is arranged on the base and connected to the positioning platform; Wherein, the driving assembly is used to drive the positioning platform to rotate in the installation cavity so that one end of the spring is docked with the other end.

2. The spring end welding jig according to claim 1, characterized in that: The friction supporting part is made of silicone material.

3. The spring end welding jig according to claim 1, characterized in that: The positioning platform includes a base portion that is relatively arranged and a protrusion portion arranged on the top of the base portion. The top surface of the base portion and the side surface of the protrusion portion are combined with the wall surface of the installation cavity to form the positioning ring groove. The friction support portion is arranged on the protrusion portion, and the drive assembly is connected to the base portion.

4. The spring end welding jig according to claim 3, characterized in that: The width of the positioning ring groove at the friction abutment portion is smaller than the width outside the friction abutment portion.

5. The spring end welding jig according to claim 1, characterized in that: The base comprises a bottom plate and a fixing seat, the fixing seat is fixedly connected to the bottom plate, and the fixing seat is provided with the installation cavity; The base further comprises a limit block, the fixing seat is provided with a mounting groove communicating with the mounting cavity, the limit block is arranged in the mounting groove and partially protrudes in the mounting cavity; The outer wall of the positioning platform is provided with a limiting groove, the width of the limiting block is smaller than the width of the limiting groove, and the limiting block extends into the limiting groove.

6. The spring end welding jig according to any one of claims 1 to 5, characterized in that: There are a plurality of installation cavities, a plurality of positioning platforms, and the installation cavities and the positioning platforms are arranged in one-to-one correspondence; The driving assembly is connected to a plurality of the positioning stages.

7. The spring end welding jig according to claim 1, characterized in that: The driving assembly includes a sliding member and a lever, the sliding member is movably arranged on the base, one end of the lever is connected to the sliding member, a lever groove is provided on the side of the positioning platform facing the sliding member, the other end of the lever extends into the lever groove, and the sliding member is used to drive the lever to rotate, so as to drive the positioning platform to rotate.

8. The spring end welding jig according to claim 7, characterized in that: There are a plurality of the shifting rods, and the plurality of the shifting rods are arranged on the sliding member at intervals; There are a plurality of the installation cavities, a plurality of the positioning platforms, the installation cavities and the positioning platforms are arranged in a one-to-one correspondence, and the shifting rods are connected to the positioning platforms in a one-to-one correspondence.

9. The spring end welding jig according to claim 1, characterized in that: It also includes a push-out assembly, the push-out assembly includes a moving block and a push rod, the moving block is movably arranged on the base, the push rod is connected to the moving block, and the moving block is used to drive the push rod to approach or move away from the positioning platform; The positioning platform is provided with an ejection groove on one side facing the push rod, the top of the ejection groove is provided with a supporting slope, the end of the push rod is provided with an ejection slope, the ejection slope and the supporting slope are in the same inclination direction, the push rod extends into the ejection groove, and the ejection slope cooperates with the supporting slope to move the positioning platform in a direction away from the base, so that the spring in the positioning ring groove is ejected.

10. The spring end welding jig according to claim 9, characterized in that: There are a plurality of push rods, and the plurality of push rods are arranged on the moving block at intervals; There are a plurality of the installation cavities, there are a plurality of the positioning platforms, the installation cavities are arranged in a one-to-one correspondence with the positioning platforms, and the push rods are arranged in a one-to-one correspondence with the positioning platforms.

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