Welding positioning tool for heat exchanger machining

Abstract

The utility model relates to the technical field of welding positioning, in particular to a welding positioning tool for processing a heat exchanger, which comprises a first support base, a second support base, two groups of symmetrically arranged positioning plates and a tripod, a support component is arranged on the inner side of each positioning plate, and the support component and the positioning plates are fixed through two bolts; the supporting assembly comprises a supporting plate, a supporting frame base, a plug pin protruding part, a connecting inserting groove, a threaded through groove, a supporting groove, an auxiliary inclined face, a strip-shaped groove and a fixing bolt. The top end of the support frame base is provided with a connecting slot, one side of the support frame base is provided with a threaded through groove, and the connecting slot of the support frame base corresponds to the convex part of the bolt in position, has the same group number, and is matched and inserted with the convex part of the bolt; and the heat exchanger barrels with different diameters are supported by replacing the supporting plates with the supporting grooves with different specifications, so that the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling, specifically a welding positioning tooling for heat exchanger processing. Background Technology

[0002] Welding positioning fixtures for heat exchanger processing are devices specifically designed for welding heat exchanger shells to solve welding positioning problems and improve welding quality and efficiency.

[0003] Traditional welding positioning fixtures typically include a first support base and a second support base. The second support base is welded to one end of the first support base, and a positioning plate is suspended above the second support base. The positioning plate is fixed to the second support base with bolts, and the support frame is located inside the positioning plates at both ends. However, when supporting heat exchangers of different diameters, traditional welding positioning fixtures can only replace the support frame with bolts. Although it can be disassembled and replaced, the position of the support frame needs to be checked after each replacement to ensure it can support the heat exchanger, which is quite troublesome. Utility Model Content

[0004] The purpose of this utility model is to provide a welding positioning fixture for heat exchanger processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a first support base, a second support base, two sets of symmetrically arranged positioning plates and a tripod, wherein the tripod is located outside the positioning plates and is fixed by welding.

[0006] A second support base is fixedly mounted on the first support base, and a positioning plate is mounted on the second support base; a support assembly is mounted on the inner side of the positioning plate, and the support frame assembly is fixed to the positioning plate by two bolts.

[0007] Preferably, the support assembly includes a support plate, a support frame base, a pin protrusion, a connecting slot, a threaded through groove, a support groove, an auxiliary inclined surface, a strip groove, and fixing bolts; an extension plate is fixedly provided on one side of the bottom end of the support frame base, and the extension plate is fixed by bolts; a connecting slot is provided on the top end of the support frame base, and a threaded through groove is provided on one side of the support frame base.

[0008] Preferably, the top of the support plate is provided with a support groove, and the bottom end of the support plate is fixedly provided with a pin protrusion.

[0009] Preferably, the two sides of the pin protrusion are symmetrically provided with strip-shaped grooves, and the bottom of the inner side of the strip-shaped groove is provided with an auxiliary inclined surface. The pin protrusion and the connecting slot are positioned correspondingly and have the same number of sets, and are compatible for insertion.

[0010] Preferably, the support plate is fixed by a fixing bolt, and the fixing bolt includes a fastening threaded post, a protruding ball, a rubber head, a rotating handle, a handle recess, and a connecting groove; the fastening threaded post is threaded to the threaded groove, a rotating handle is fixedly provided at one end of the fastening threaded post, and a protruding ball is fixedly provided at the other end of the fastening threaded post.

[0011] Preferably, the outer side wall of the rotary handle is symmetrically provided with handle recesses.

[0012] Preferably, the protruding sphere is fitted and engaged with the connecting slot, which is disposed in the rubber top.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The welding positioning fixture for heat exchanger processing proposed in this utility model mainly uses the corresponding positions and the same number of sets of the connecting slot and the pin protrusion of the support frame base to fit together and be fixed by fixing bolts. By replacing the support plate with support plates of different specifications of support grooves, it can support heat exchanger shells of different diameters, reducing the labor intensity of workers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the welding positioning fixture structure connection of this utility model;

[0016] Figure 2 for Figure 1 Enlarged schematic diagram of the structural connection at point A;

[0017] Figure 3 This is a schematic diagram of the support component structure connection of this utility model;

[0018] Figure 4 for Figure 3 Enlarged schematic diagram of the structural connection at point B;

[0019] Figure 5 This is an enlarged schematic diagram of the structure of the fixing bolt of this utility model.

[0020] In the figure: First support base 1, second support base 2, positioning plate 3, tripod 4, support plate 501, support frame base 502, pin protrusion 503, connecting slot 504, threaded through groove 505, support groove 506, auxiliary inclined surface 601, strip groove 602, fastening threaded post 701, protruding ball 702, rubber top 703, rotating handle 704, handle recess 705, connecting slot 706. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-5 The present invention provides a technical solution: a second support base 2 is fixedly disposed on the first support base 1, and a positioning plate 3 is disposed on the second support base 2; a support assembly is disposed on the inner side of the positioning plate 3, and the support frame assembly and the positioning plate 3 are fixed by two bolts.

[0023] This solution first requires calibrating the distance between the outer side of the support frame base 502 of the support assembly and the positioning plate 3 for the connection between the support assembly and the positioning plate 3. Then, the bottom positioning groove of the support frame base 502 is fixed with two symmetrically arranged bolts. The purpose of calibrating the distance between the outer side of the support frame base 502 and the positioning plate 3 is to ensure welding accuracy. Next, the pin protrusion 503 and the connecting slot 504 at the lower part of the support plate 501 are inserted, and then the support plate 501 and the support frame base 502 are fixed with knob-fixing bolts. By replacing the support plate 501 with different support groove 506 specifications, it is possible to support heat exchanger shells of different diameters.

[0024] The lengths of the pin protrusion 503 and the connecting slot 504 are equal. A strip groove 602 is symmetrically arranged on both sides of the pin protrusion 503, and an auxiliary inclined surface 601 is provided on the inner bottom of the strip groove 602. The purpose of the auxiliary inclined surface 601 is to apply a downward force when the fixing bolt is fixed, thereby increasing the stability of the connection between the pin protrusion 503 and the connecting slot 504. The pin protrusion 503 and the connecting slot 504 are positioned correspondingly and have the same number of sets, and they are compatible for insertion.

[0025] After the pin protrusion 503 and the connecting slot 504 are adjusted, the fastening threaded post 701 is aligned with the threaded through grooves 505 on both sides of the support frame base 502. Then, the pin protrusion 503 and the connecting slot 504 are fixed by turning the knob of the rotating handle 704 with the handle recess 705. The bottom end of the fastening threaded post 701 is provided with a protruding ball 702, which is adapted to engage with the connecting slot 706. The connecting slot 706 is set in the rubber top 703. The rubber top 703 is made of rubber to increase friction and improve the stability of the connection between the support plate 501 and the support frame base 502. After the support plate 501 and the support frame base 502 are connected, the heat exchanger shell can be placed on the support groove 506 and then positioned and welded. When heat exchanger shells of different diameters are supported by the support assembly, the corresponding diameter support plate 501 can be directly replaced, thereby quickly realizing the processing and welding of the heat exchanger.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding positioning fixture for heat exchanger processing, comprising a first support base (1), a second support base (2), two sets of symmetrically arranged positioning plates (3) and a tripod (4), wherein the tripod (4) is located outside the positioning plates (3) and is fixed by welding; Its features are: A second support base (2) is fixedly installed on the first support base ((1)), and a positioning plate (3) is installed on the second support base (2); a support assembly is installed on the inner side of the positioning plate (3), and the support frame assembly and the positioning plate (3) are fixed by two bolts.

2. The welding positioning fixture for heat exchanger processing according to claim 1, characterized in that: The support assembly includes a support plate (501), a support frame base (502), a pin protrusion (503), a connecting slot (504), a threaded through groove (505), a support groove (506), an auxiliary inclined surface (601), a strip groove (602), and fixing bolts; an extension plate is fixedly provided on one side of the bottom end of the support frame base (502), and the extension plate is fixed by bolts; a connecting slot (504) is provided on the top end of the support frame base (502), and a threaded through groove (505) is provided on one side of the support frame base (502).

3. The welding positioning fixture for heat exchanger processing according to claim 2, characterized in that: The top of the support plate (501) is provided with a support groove (506), and the bottom end of the support plate (501) is fixedly provided with a pin protrusion (503).

4. The welding positioning fixture for heat exchanger processing according to claim 2, characterized in that: The pin protrusion (503) is symmetrically provided with strip grooves (602) on both sides, and the bottom of the inner side of the strip groove (602) is provided with an auxiliary inclined surface (601). The pin protrusion (503) and the connecting slot (504) are positioned correspondingly and have the same number of sets, and are compatible for insertion.

5. The welding positioning fixture for heat exchanger processing according to claim 2, characterized in that: The support plate (501) is fixed by a fixing bolt, which includes a fastening threaded post (701), a protruding ball (702), a rubber head (703), a rotating handle (704), a handle recess (705), and a connecting slot (706). The fastening threaded post (701) is threadedly connected to the threaded through slot (505). One end of the fastening threaded post (701) is fixedly provided with a rotating handle (704), and the other end of the fastening threaded post (701) is fixedly provided with a protruding ball (702).

6. The welding positioning fixture for heat exchanger processing according to claim 5, characterized in that: The outer side wall of the rotary handle (704) is symmetrically provided with handle recesses (705).

7. The welding positioning fixture for heat exchanger processing according to claim 5, characterized in that: The protruding sphere (702) is adapted to engage with the connecting slot (706), which is located in the rubber head (703).

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