CN219925104U - Concentric cylinder self-centering welding fixture - Google Patents
Concentric cylinder self-centering welding fixture Download PDFInfo
- Publication number
- CN219925104U CN219925104U CN202320990572.3U CN202320990572U CN219925104U CN 219925104 U CN219925104 U CN 219925104U CN 202320990572 U CN202320990572 U CN 202320990572U CN 219925104 U CN219925104 U CN 219925104U
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- CN
- China
- Prior art keywords
- clamping
- block
- bottom plate
- fixture
- concentric cylinder
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- 238000003466 welding Methods 0.000 title claims abstract description 26
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 abstract description 31
- 238000000034 method Methods 0.000 description 9
- 210000000078 claw Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Abstract
The utility model relates to the field of welding fixtures, in particular to a concentric cylinder self-centering welding fixture, which comprises a bottom plate and a clamping mechanism, wherein the clamping mechanism is fixedly arranged on the bottom plate and comprises a support frame and at least three first clamping blocks, the first clamping blocks are uniformly arranged around the support frame and are rotationally connected with the bottom plate, at least three second clamping blocks are also slidably arranged on the bottom plate, and the pressing block can move up and down. According to the utility model, the clamping mechanism and the second clamping block are arranged, so that the positions of two cylindrical materials can be determined simultaneously and fixed; the clamping mechanism and the positions of the three second clamping blocks are adjusted in advance, so that the two clamped cylindrical materials can be kept coaxial.
Description
Technical Field
The utility model relates to the field of welding clamps, in particular to a concentric cylinder self-centering welding clamp.
Background
Welding, also known as fusion welding, is a process and technique for joining metals or other thermoplastic materials, such as plastics, by means of heat, high temperature or high pressure. Welding is widely used in the processing of various shapes and materials as one of the common processing modes nowadays. In the welding of two cylindrical materials, the two cylinders are required to be fixed respectively, so that the two cylindrical materials are very easy to be out of center, the central axes of the two cylindrical materials after welding are not overlapped, and the quality of a processed product is affected.
Therefore, it is necessary to design such a clamp structure to overcome the above-mentioned drawbacks.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a concentric cylinder self-centering welding fixture, which is realized by the following technical scheme:
the utility model provides a concentric cylinder is from centering welding jig, includes bottom plate and fixture, fixture is fixed to be set up on the bottom plate, just fixture includes support frame and at least three first fixture block, first fixture block centers on the support frame evenly sets up, first fixture block with the bottom plate rotates to be connected, still slide on the bottom plate and be provided with at least three second fixture block, still include the briquetting, the briquetting can reciprocate.
The technical scheme is as follows: the bottom plate is used for supporting other parts; the clamping mechanism is used for clamping and supporting the other piece of cylindrical material; the support frame is used for supporting the cylindrical material, the three first clamping blocks are used for fixing the position of the cylindrical material, and meanwhile, the position of the central shaft of the cylindrical material is determined; the three second clamping blocks are used for determining the position of the central shaft of the other cylindrical material; the press block is used for fixing another cylindrical material so that the two materials do not move relatively during welding.
The utility model is further provided with: the first clamping block is provided with a first clamping surface, the second clamping block is provided with a second clamping surface, and the bottom surface of the second clamping surface is higher than the top of the first clamping surface.
The technical scheme is as follows: the first clamping surface is used for limiting the position of one of the cylindrical materials; the second clamping surface is used for limiting the position of another cylindrical material; the bottom surface of the second clamping surface is higher than the top of the first clamping surface so that the two cylindrical materials do not interfere with each other.
The utility model is further provided with: the rotation axis of the first clamping block is perpendicular to the bottom plate.
The technical scheme is as follows: the rotation axis of the first clamping block is perpendicular to the bottom plate, so that the first clamping block can rotate on the surface parallel to the upper surface of the bottom plate, and the relative positions of the three first clamping blocks are adjusted.
The utility model is further provided with: the second clamping block can be close to or far away from the supporting frame.
The technical scheme is as follows: the second fixture block can be close to or far away from the support frame, so that the second fixture block can clamp cylindrical materials and can be matched with the support frame, and the second fixture block can clamp and fix another cylindrical material.
The utility model is further provided with: the support frame includes connecting block and turning block, the connecting block with bottom plate fixed connection, the turning block with the connecting block rotates to be connected.
The technical scheme is as follows: the connecting block is used for fixedly connecting with the bottom plate; the rotating block is used for adapting to the fixing requirements of cylindrical materials with different thicknesses.
The utility model is further provided with: the bottom plate is provided with clamping jaws, and the pressing block is fixedly connected with the end parts of the clamping jaws.
The technical scheme is as follows: the clamping jaw is used for realizing up-and-down movement of the pressing block.
The utility model discloses a concentric cylinder self-centering welding fixture, which is compared with the prior art:
1. according to the utility model, the clamping mechanism and the second clamping block are arranged, so that the positions of two cylindrical materials can be determined simultaneously and fixed;
2. the clamping mechanism and the positions of the three second clamping blocks are adjusted in advance, so that the two clamped cylindrical materials can be kept coaxial.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a schematic view of a support frame according to the present utility model;
fig. 4 is a schematic view of the present utility model assembled with a cylindrical material.
Corresponding part names are indicated by numerals and letters in the drawings: 10-a bottom plate; 20-clamping mechanism; 201-supporting frames; 201 a-connecting blocks; 201 b-rotating block; 202-a first clamping block; 202 a-a first clamping surface; 30-a second clamping block; 301-a second clamping surface; 40-briquetting; 50-clamping jaw.
Detailed Description
The following describes in detail the examples of the present utility model, which are implemented on the premise of the technical solution of the present utility model, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present utility model is not limited to the following examples.
As shown in fig. 1-4, the concentric cylinder self-centering welding fixture provided by the utility model comprises a bottom plate 10 and a clamping mechanism 20, wherein the clamping mechanism 20 is fixedly arranged on the bottom plate 10, the clamping mechanism 20 comprises a supporting frame 201 and at least three first clamping blocks 202, the first clamping blocks 202 are uniformly arranged around the supporting frame 201, the first clamping blocks 202 are rotationally connected with the bottom plate 10, at least three second clamping blocks 30 are also slidably arranged on the bottom plate 10, and the clamping block 40 can move up and down. Preferably, the clamping mechanism 20 includes three first clamping blocks 202, wherein the three first clamping blocks 202 form an equilateral triangle, and the three first clamping blocks 202 are positioned at the corners of the equilateral triangle; the number of the second clamping blocks 30 is three, and the positions of the second clamping blocks 30 and the first clamping blocks 202 are staggered; the second clamping block 30 is provided with a relief groove to avoid interference with the cylindrical material located at the lower part.
As shown in fig. 1-4, in the concentric cylinder self-centering welding fixture provided by the utility model, a first clamping surface 202a is arranged on the first clamping block 202, a second clamping surface 301 is arranged on the second clamping block 30, and the bottom surface of the second clamping surface 301 is higher than the top of the first clamping surface 202 a. Wherein the first clamping surface 202a includes a horizontal portion and a vertical portion, preferably, the vertical portion thereof may be circular arc-shaped; the second clamping surface 301 comprises a horizontal portion and a vertical portion, preferably, the vertical portion thereof may be circular arc-shaped; the distance between the horizontal portion of the second clamping surface 301 and the bottom surface thereof is the gap between the two cylindrical materials during welding.
As shown in fig. 1-4, the rotation axis of the first clamping block 202 is perpendicular to the bottom plate 10. Wherein, a plurality of adjusting cylinders are rotatably arranged on the bottom plate 10, and the first clamping block 202 is fixedly connected with the adjusting cylinders.
As shown in fig. 1-4, the second fixture block 30 can be close to or far from the supporting frame 201. Wherein the second clamping block 30 is powered by a first cylinder arranged horizontally; the bottom of the second clamping block 30 is provided with a sliding groove, the bottom plate 10 is provided with a sliding rail corresponding to the sliding groove, and the sliding groove is in sliding connection with the sliding rail.
As shown in fig. 1 to 4, the concentric cylinder self-centering welding fixture provided by the utility model, the supporting frame 201 comprises a connecting block 201a and a rotating block 201b, the connecting block 201a is fixedly connected with the bottom plate 10, and the rotating block 201b is rotatably connected with the connecting block 201 a. The connecting block 201a is rotatably connected with the middle part of the rotating block 201b, one end of the rotating block 201b is rotatably connected with an output end of a second air cylinder which is vertically arranged, and the output end of the second air cylinder penetrates through the bottom plate 10; preferably, the number of the connecting blocks 201a and the number of the rotating blocks 201b are two, the two rotating blocks 201b are symmetrically arranged, and the two rotating blocks 201b are rotationally connected with the output end of the same second cylinder.
As shown in fig. 1-4, in the concentric cylinder self-centering welding fixture provided by the utility model, a clamping jaw 50 is arranged on the bottom plate 10, and the pressing block 40 is fixedly connected with the end part of the clamping jaw 50.
The working principle of the utility model is that
a) The positions of the first clamping block and the second clamping block are adjusted through a prefabricated standard block (the standard block is a stepped cylindrical shaft processed by a machine tool);
b) Placing a first piece of cylindrical material (the piece with larger diameter) on the first claw, and enabling the first piece of cylindrical material to be fully contacted with the first clamping surface so as to realize centering;
c) The three second clamping blocks synchronously move towards the supporting frame, so that the second clamping surface is positioned above the first cylindrical material; d) Placing a second piece of cylindrical material onto the second jaw and into full contact with the second clamping surface to achieve centering,
at this time, the two cylindrical materials are coaxial;
e) The second cylinder is retracted, the rotating block of the supporting frame rotates, and the rotating block and the side wall of the abdicating groove of the second claw clamp the first cylindrical material together;
f) Pushing the clamping jaw to enable the pressing block to descend, and enabling the pressing block to be matched with the second clamping jaw to enable the second cylindrical material to be clamped.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (6)
1. The utility model provides a concentric cylinder self-centering welding jig which characterized in that: including bottom plate (10) and fixture (20), fixture (20) are fixed to be set up on bottom plate (10), just fixture (20) include support frame (201) and at least three first fixture block (202), first fixture block (202) are centers on support frame (201) evenly set up, first fixture block (202) with bottom plate (10) rotate to be connected, still slide on bottom plate (10) and be provided with at least three second fixture block (30), still include briquetting (40), briquetting (40) can reciprocate.
2. The concentric cylinder self-centering welding jig of claim 1, wherein: the first clamping block (202) is provided with a first clamping surface (202 a), the second clamping block (30) is provided with a second clamping surface (301), and the bottom surface of the second clamping surface (301) is higher than the top of the first clamping surface (202 a).
3. A concentric cylinder self-centering welding jig as claimed in claim 2, wherein: the rotation axis of the first clamping block (202) is perpendicular to the bottom plate (10).
4. A concentric cylinder self-centering welding jig as claimed in claim 3, wherein: the second clamping block (30) can be close to or far away from the supporting frame (201).
5. The concentric cylinder self-centering welding fixture of claim 4, wherein: the support frame (201) comprises a connecting block (201 a) and a rotating block (201 b), wherein the connecting block (201 a) is fixedly connected with the bottom plate (10), and the rotating block (201 b) is rotationally connected with the connecting block (201 a).
6. The concentric cylinder self-centering welding jig of claim 5, wherein: the base plate (10) is provided with a clamping jaw (50), and the pressing block (40) is fixedly connected with the end part of the clamping jaw (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320990572.3U CN219925104U (en) | 2023-04-27 | 2023-04-27 | Concentric cylinder self-centering welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320990572.3U CN219925104U (en) | 2023-04-27 | 2023-04-27 | Concentric cylinder self-centering welding fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219925104U true CN219925104U (en) | 2023-10-31 |
Family
ID=88491238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320990572.3U Active CN219925104U (en) | 2023-04-27 | 2023-04-27 | Concentric cylinder self-centering welding fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219925104U (en) |
-
2023
- 2023-04-27 CN CN202320990572.3U patent/CN219925104U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |