Circular ring roundness correcting, positioning and welding clamp

Abstract

The utility model relates to a circular ring roundness correction positioning welding clamp which comprises a plurality of arc-shaped blocks, a synchronous driving assembly and a plurality of welding positioning assemblies, the assemblies are used for positioning lug-shaped welding pieces, before welding, a circular ring is arranged on the peripheries of the arc-shaped blocks in a sleeved mode, then the synchronous driving assembly drives the arc-shaped blocks to be unfolded outwards synchronously, and the welding positioning assemblies are used for positioning the lug-shaped welding pieces. During welding, the circular ring is expanded to form a complete circle, at the moment, the positioning area of the welding positioning assembly is attached to the periphery of the circular ring, the lug-shaped welding piece is placed in the positioning area to be welded, welding is carried out in the mode, the lug-shaped welding piece and the circular ring are connected more firmly, and the lug-shaped welding piece cannot fall off during welding.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding positioning equipment, specifically relating to a circular ring alignment and positioning welding fixture. Background Technology

[0002] Existing methods for welding circular rings typically involve manually fixing a portion of the ring using a fixing device, then attaching the ear-shaped welding parts to the outer circumference of the ring before welding. This method requires welding each ear-shaped welding part individually, resulting in low efficiency. Another method involves placing the ring around the outer circumference of a cylindrical positioning body, then attaching the ear-shaped welding parts to the outer circumference of the ring before welding. However, this method has the following problems: the ring and the outer circumference of the cylindrical positioning body cannot be perfectly aligned, and some areas of the ring may still be bent or bulge. After welding the ear-shaped welding parts, they are prone to falling off, and the horizontal height of multiple ear-shaped welding parts is inconsistent, meaning they are prone to being welded crookedly. In view of these issues, this solution was developed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a circular ring alignment and positioning welding fixture, which can expand the circular ring to ensure the curvature of the circular ring, and then position the ear-shaped welding part through the welding positioning component before welding.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a circular ring alignment and positioning welding fixture, including multiple arc blocks, a synchronous drive component, and multiple welding positioning components. The multiple arc blocks are arranged in a ring with intervals. When the multiple arc blocks are closed, their outer edges are spliced ​​into a circle. The synchronous drive component is used to drive the multiple arc blocks to move outward synchronously. The multiple welding positioning components are arranged in a ring with intervals and located on the outward side of the outer edges of the multiple arcs. The multiple welding positioning components are used to position the ear-shaped welding parts.

[0005] Furthermore, a movable wheel is provided at the inward end of the arc-shaped block, the synchronous drive assembly includes a conical column and a first push cylinder, the large end of the conical column is arranged upward, the conical column is located between multiple arc-shaped blocks, multiple movable wheels are in contact with the circumferential surface of the conical column, the output end of the first push cylinder is fixedly connected to the end face of the conical column, and a reset assembly is provided inside the arc-shaped block.

[0006] Furthermore, the fixture also includes a base plate, on which a plurality of the arc-shaped blocks are placed. A ring-shaped baffle is formed on the base plate, the baffle being located on the inward side of the arc-shaped blocks. An installation notch is formed below the inward side of the arc-shaped blocks, the installation notch corresponding to the ear-shaped welded part. The reset assembly includes a reset spring, which is located within the installation notch. Both ends of the reset spring are fixedly connected to the arc-shaped blocks and the baffle, respectively.

[0007] Furthermore, the fixture also includes a base plate, on which a plurality of the arc-shaped blocks are placed; a sliding groove extending through both sides is formed on the lower surface of the arc-shaped blocks, and a slide rail is provided on the base plate, the sliding groove being adapted to the slide rail.

[0008] Furthermore, the lower surface of the fixture is provided with an installation groove, which overlaps with the slide groove. A movable seat is placed in the installation groove, and a slide rail is provided on the movable seat. The slide rail corresponds to the slide groove, and the slide rail is compatible with the slide rail.

[0009] Furthermore, the number of the arc-shaped blocks is 6.

[0010] Furthermore, the welding positioning assembly includes an ejector cylinder seat, a transition block, and a positioning block. An ejector column is provided on the surface of the ejector cylinder seat. The output end of the ejector column is connected to the transition block. The outer side of the transition block is connected to the positioning block. A limiting notch is formed on the outer side of the positioning block. The shape of the limiting notch is the same as that of the ear-shaped weldment.

[0011] Furthermore, the number of ejector columns is two, and they are spaced apart on the left and right.

[0012] Furthermore, the number of welding positioning components is ten.

[0013] Furthermore, the fixture also includes a base plate, and multiple welding positioning components are detachably mounted on the base plate. The base plate is provided with a first positioning hole, and the ejector cylinder seat is formed with a second positioning hole. A positioning post is inserted into the first positioning hole, and the second positioning hole of the ejector cylinder seat is sleeved on the positioning post and fixed by a nut.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model provides a circular ring alignment and positioning welding fixture. Before welding, the circular ring is placed around the outer periphery of multiple arc blocks. Then, the synchronous drive component drives the multiple arc blocks to expand outward synchronously, expanding the circular ring to form a complete circle. At this time, the positioning area of ​​the welding positioning component is in contact with the outer periphery of the circular ring. The ear-shaped welding part is placed in the positioning area for welding. By welding in the above manner, the connection between the ear-shaped welding part and the circular ring is more firm and the ear-shaped welding part will not be welded crookedly.

[0016] 2. The synchronous drive assembly uses the first push cylinder to drive the conical column to move up and down. The circumference of the conical column is in contact with the moving wheel of the arc block. When the moving wheel moves from the large end to the small end of the conical surface, the arc block is pushed out. Conversely, the arc block retracts and moves closer under the action of the reset assembly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a circular ring alignment and positioning welding fixture according to the present invention;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the arc-shaped block and the synchronous drive component in this utility model;

[0020] Figure 4 This utility model Figure 3 A magnified view of a portion of point A in the middle;

[0021] Figure 5 This is a partial bottom view of the slide rail and movable seat in this utility model;

[0022] Figure 6 This is a bottom view of the arc-shaped block in this utility model.

[0023] Figure 7 This is a three-dimensional structural diagram of the welding positioning component in this utility model.

[0024] The markings in the diagram are: 1. Base plate; 11. Positioning post; 12. Baffle; 13. Slide rail; 2. Arc block; 21. Connecting seat; 22. Moving wheel; 23. Return spring; 24. Slide groove; 25. Moving seat; 26. Mounting notch; 3. Synchronous drive assembly; 31. First push cylinder; 32. Conical post; 4. Welding positioning assembly; 41. Ejector cylinder seat; 42. Ejector post; 43. Adapter block; 44. Positioning block; 441. Limiting notch. Detailed Implementation

[0025] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0026] like Figures 1-7 As shown, this embodiment provides a circular ring alignment and positioning welding fixture, including a base plate 1, six arc-shaped blocks 2, a synchronous drive assembly 3, and ten welding positioning assemblies 4.

[0027] Six arc-shaped blocks 2 are placed on the upper surface of the base plate 1, and the six arc-shaped blocks 2 are arranged in a ring around the same center. A connecting seat 21 is provided on the inner side of the arc-shaped blocks 2, and a moving wheel 22 is provided on the connecting seat 21.

[0028] The lower surface of the arc-shaped block 2 has a sliding groove 24 that runs through both sides. The base plate 1 is provided with a slide rail 13. The sliding groove 24 is adapted to the slide rail 13. Specifically, the lower surface of the fixture is provided with an installation groove. The installation groove overlaps with the sliding groove 24. A movable seat 25 is placed in the installation groove. A slide rail is provided on the movable seat 25. The slide rail corresponds to the sliding groove 24. The slide rail is adapted to the slide rail 13.

[0029] The synchronous drive assembly 3 is used to drive multiple arc-shaped blocks 2 to move outward synchronously. Specifically, the synchronous drive assembly 3 includes a conical column 32 and a first push cylinder 31. The conical column 32 is positioned with its large end facing upward and is located between the six arc-shaped blocks 2. The six moving wheels 22 are in contact with the circumference of the conical column 32. The output end of the first push cylinder 31 is fixedly connected to the end face of the conical column 32. The first push cylinder 31 can be located at the upper or lower end. In this solution, the push cylinder is connected below the base plate 1, and its output end passes through the base plate 1 and is fixedly connected to the conical column 32. A reset assembly is provided inside the arc-shaped block 2. Specifically, a ring-shaped baffle 12 is formed on the base plate 1. The baffle 12 is located on the inner side of the arc-shaped block 2. An installation notch 26 is formed below the inner side of the arc-shaped block 2. The installation notch 26 corresponds to the ear-shaped welded part. The reset assembly includes a reset spring 23. The reset spring 23 is located in the installation notch 26. The two ends of the reset spring 23 are fixedly connected to the arc-shaped block 2 and the baffle 12, respectively.

[0030] Ten welding positioning components 4 are used to position the ear-shaped welded parts. Specifically, the welding positioning components 4 include an ejector cylinder seat 41, a transition block 43, and a positioning block 44. The surface of the ejector cylinder seat 41 is provided with ejector posts 42. There are two ejector posts 42, which are spaced apart on the left and right. The output end of the ejector post 42 is connected to the transition block 43. The outer side of the transition block is connected to the positioning block 44. The outer side of the positioning block 44 forms a limiting notch 441. The shape of the limiting notch 441 is the same as the shape of the ear-shaped welded parts.

[0031] Preferably, ten welding positioning components 4 are detachably mounted on the base plate 1. The base plate 1 is provided with a first positioning hole, and the ejector cylinder seat 41 is provided with a second positioning hole. The first positioning hole is fitted with a positioning post 11, and the second positioning hole of the ejector cylinder seat 41 is sleeved on the positioning post 11 and fixed by a nut.

[0032] Working principle: Before welding, the ring is placed around the six arc-shaped blocks 2. Then, the first pushing cylinder 31 retracts. With the cooperation of the moving wheel 22 and the conical column 32, the six arc-shaped blocks 2 expand outwards simultaneously, expanding the ring to form a complete circle. At this time, the ejector column 42 on the ejector cylinder seat 41 of the welding positioning component 4 is ejected. The adapter block 43 and the positioning block 44 move toward the ring. The surface of the positioning block 44 fits against the outer circumference of the ring. Then, the ear-shaped welding part is placed in for welding. Alternatively, the ear-shaped welding part can be placed in the limiting notch 441 of the positioning block 44 and then ejected for welding. By welding in the above manner, the connection between the ear-shaped welding part and the ring is more secure and the ear-shaped welding part will not be welded crookedly.

[0033] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A circular ring alignment and positioning welding fixture, characterized in that: It includes multiple arc-shaped blocks, a synchronous drive component, and multiple welding positioning components. The multiple arc-shaped blocks are arranged in a ring with intervals. When the multiple arc-shaped blocks are closed, their outer edges are spliced ​​into a circle. The synchronous drive component is used to drive the multiple arc-shaped blocks to move outward synchronously. The multiple welding positioning components are arranged in a ring with intervals and are located on the outward side of the outer edges of the multiple arc-shaped blocks. The multiple welding positioning components are used to position the ear-shaped welding parts.

2. The circular ring alignment and positioning welding fixture according to claim 1, characterized in that: The arc-shaped block has a moving wheel at one inward end. The synchronous drive assembly includes a conical column and a first push cylinder. The large end of the conical column is facing upward. The conical column is located between multiple arc-shaped blocks. The multiple moving wheels are in contact with the circumferential surface of the conical column. The output end of the first push cylinder is fixedly connected to the end face of the conical column. A reset assembly is provided inside the arc-shaped block.

3. The circular ring alignment and positioning welding fixture according to claim 2, characterized in that: The fixture also includes a base plate, on which a plurality of the arc-shaped blocks are placed. A ring-shaped baffle is formed on the base plate, the baffle being located on the inward side of the arc-shaped blocks. An installation notch is formed below the inward side of the arc-shaped blocks, the installation notch corresponding to the ear-shaped welded part. The reset assembly includes a reset spring, which is located within the installation notch. Both ends of the reset spring are fixedly connected to the arc-shaped blocks and the baffle, respectively.

4. The circular ring alignment and positioning welding fixture according to claim 1, characterized in that: The fixture also includes a base plate, on which a plurality of the arc-shaped blocks are placed; a sliding groove is formed on the lower surface of the arc-shaped blocks, extending through both sides; a slide rail is provided on the base plate, and the sliding groove is adapted to the slide rail.

5. A circular ring alignment and positioning welding fixture according to claim 4, characterized in that: The lower surface of the fixture is provided with an installation groove, which overlaps with the slide groove. A movable seat is placed in the installation groove, and a slide rail is provided on the movable seat. The slide rail corresponds to the slide groove, and the slide rail is adapted to the slide rail.

6. The circular ring alignment and positioning welding fixture according to claim 1, characterized in that: The number of arc-shaped blocks is 6.

7. The circular ring alignment and positioning welding fixture according to claim 1, characterized in that: The welding positioning assembly includes an ejector cylinder seat, a transition block, and a positioning block. An ejector column is provided on the surface of the ejector cylinder seat. The output end of the ejector column is connected to the transition block. The outer side of the transition block is connected to the positioning block. A limiting notch is formed on the outer side of the positioning block. The shape of the limiting notch is the same as that of the ear-shaped weldment.

8. A circular ring alignment and positioning welding fixture according to claim 7, characterized in that: The number of ejector columns is two, and they are spaced apart on the left and right.

9. A circular ring alignment and positioning welding fixture according to claim 1, characterized in that: The number of welding positioning components is ten.

10. A circular ring alignment and positioning welding fixture according to claim 7, characterized in that: The fixture also includes a base plate, and multiple welding positioning components are detachably mounted on the base plate. The base plate is provided with a first positioning hole, and the ejector cylinder seat is formed with a second positioning hole. A positioning post is inserted into the first positioning hole, and the second positioning hole of the ejector cylinder seat is sleeved on the positioning post and fixed by a nut.

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