A positioning tooling for vacuum brazing welding

Abstract

A positioning tooling for vacuum brazing welding belongs to the technical field of welding tooling. There are pull rods, outer brackets and N-shaped brackets on the bottom plate. A pressure plate is sleeved on the pull rod and has a first wedge-shaped groove. A first wedge block that fits with the pressure plate is arranged in the first wedge-shaped groove. The outer bracket has a first jack, and a first bushing is arranged in the first jack. The first bushing is sleeved on the outside of the first mandrel. A first sliding nut is arranged outside the first mandrel, and a second wedge-shaped groove is arranged in the middle. A second wedge block that fits with the outer bracket is arranged in the second wedge-shaped groove. The N-shaped bracket has a second jack, and a second bushing is arranged in the second jack. The second bushing is sleeved on the outside of the second mandrel. A second sliding nut is arranged outside the second mandrel, and a third wedge-shaped groove is arranged in the middle. A third wedge block that fits with the N-shaped bracket is arranged in the third wedge-shaped groove. The present invention realizes adjustment within a certain length through the sliding nut, thereby ensuring the correct position of the nozzle after welding, and then meeting the required position accuracy after welding. At the same time, the pressing method of inserting the wedge block into the wedge-shaped groove is adopted to avoid the problem that the parts cannot be disassembled from the tooling after welding.

Description

Technical Field

[0001] The present invention relates to a positioning tooling for vacuum brazing welding, belonging to the technical field of welding tooling. Background Art

[0002] When nozzle-like parts are welded to housing-like parts by vacuum brazing, generally high post-welding position accuracy is required. However, it is very difficult to achieve the required position accuracy using existing welding positioning tooling. At the same time, since the tooling will deform due to heat during welding, it is then very difficult to remove the parts from the tooling after welding, and the operation is inconvenient. Summary of the Invention

[0003] To solve the problems in the background art, the present invention provides a positioning tooling for vacuum brazing welding.

[0004] To achieve the above object, the present invention adopts the following technical solution: A positioning tooling for vacuum brazing welding, including a bottom plate, a housing axial positioning mechanism, a part radial positioning mechanism, and a part axial positioning mechanism; the upper end of the bottom plate is provided with a housing axial positioning mechanism, a part radial positioning mechanism, and a part axial positioning mechanism that cooperate with each other.

[0005] Compared with the prior art, the beneficial effects of the present invention are:

[0006] After the mandrel and the bushing of the present invention are fixed together and installed on the bracket, and a sliding nut is installed on the mandrel. The nozzle to be welded is fixed at the welding position of the housing through the sliding nut. The sliding nut realizes the adjustment within a certain length, thus ensuring the correct position of the nozzle after welding, and then meeting the required position accuracy after welding. At the same time, the present invention adopts the pressing method of inserting a wedge block into a wedge-shaped groove, avoiding the problem that the traditional threaded pressing causes the parts to be unable to be disassembled from the tooling after welding due to the heat deformation of the thread during welding. Brief Description of the Drawings

[0007] Figure 1 is the top view of the present invention;

[0008] Figure 2 is Figure 1 the A-A sectional view of

[0009] Figure 3 is Figure 1 the B-B sectional view of

[0010] Figure 4 is Figure 1 the C-C sectional view of Detailed Description of the Invention

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0012] A positioning tooling for vacuum brazing welding includes a bottom plate 1, a shell axial positioning mechanism, a part radial positioning mechanism, and a part axial positioning mechanism; the upper end of the bottom plate 1 is provided with a shell axial positioning mechanism, a part radial positioning mechanism, and a part axial positioning mechanism that cooperate with each other.

[0013] The shell axial positioning mechanism includes a pull rod 3, a pressing plate 8, and a first wedge block 9; a stepped through hole is provided through the thickness direction in the middle of the bottom plate 1, the pull rod 3 penetrates and is limited in the stepped through hole by an angular pin 2 and a first cylindrical pin 4, a pressing plate 8 is sleeved on the outer side of the upper end of the pull rod 3, and a first wedge-shaped groove is provided through the radial direction at the upper end of the pull rod 3, and the first wedge block 9 is inserted into the first wedge-shaped groove, and the lower surface of the first wedge block 9 is arranged in contact with the upper surface of the pressing plate 8.

[0014] The part radial positioning mechanism includes an outer bracket 5, a first bushing 16, a first mandrel 17, a second wedge block 19, and a first sliding nut 20; the side wall of the bottom plate 1 is fixed with an outwardly inclined outer bracket 5 through corresponding screws 6 and a second cylindrical pin 7, a first jack is provided through the thickness direction at the upper end of the outer bracket 5, a first bushing 16 is inserted into the first jack, the first bushing 16 is sleeved on the outer side of the outer end of the first mandrel 17, the first bushing 16 and the first mandrel 17 are fixedly connected by a third cylindrical pin 18, a first sliding nut 20 is sleeved on the outer side of the inner end of the first mandrel 17, a second wedge-shaped groove is provided through the radial direction in the middle of the first mandrel 17, and the second wedge block 19 is inserted into the second wedge-shaped groove, and the outer wall of the second wedge block 19 is arranged in contact with the inner wall of the outer bracket 5.

[0015] The part axial positioning mechanism includes an n-shaped bracket 10, a second bushing 11, a second mandrel 12, a third wedge block 14, and a second sliding nut 15; the edge of the upper surface of the bottom plate 1 is fixed with a vertically arranged n-shaped bracket 10 through corresponding screws 6 and a second cylindrical pin 7, a second jack is provided through the thickness direction on the horizontal plate of the n-shaped bracket 10, a second bushing 11 is inserted into the second jack, the second bushing 11 is sleeved on the outer side of the upper end of the second mandrel 12, the second bushing 11 and the second mandrel 12 are fixedly connected by a fourth cylindrical pin 13, a second sliding nut 15 is sleeved on the outer side of the lower end of the second mandrel 12; a third wedge-shaped groove is provided through the radial direction in the middle of the second mandrel 12, and the third wedge block 14 is inserted into the third wedge-shaped groove, and the upper surface of the third wedge block 14 is arranged in contact with the lower surface of the horizontal plate of the n-shaped bracket 10.

[0016] When using the present invention, after the housing to be welded is inserted into the bottom plate 1 through the pull rod 3, the pressing plate 8 is placed above the housing to be welded, and the wedge block 1 9 is inserted into the first wedge-shaped groove of the pull rod 3 to axially press the housing. The welding end of the radial nozzle to be welded is inserted into the hole of the housing, and the other end is fixed at the position to be welded through the first sliding nut 20 and is pressed through the wedge block 2 19; the welding end of the axial nozzle to be welded is inserted into the hole of the housing, and the other end is fixed at the position to be welded through the second sliding nut 15 and is pressed through the wedge block 3 14.

[0017] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent conditions of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0018] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A positioning tooling for vacuum brazing welding, characterized in that: It includes a bottom plate (1), a housing axial positioning mechanism, a part radial positioning mechanism, and a part axial positioning mechanism; on the upper end of the bottom plate (1), there are a housing axial positioning mechanism, a part radial positioning mechanism, and a part axial positioning mechanism that are used in cooperation; the housing axial positioning mechanism includes a pull rod (3), a pressing plate (8), and a first wedge block (9); in the middle of the bottom plate (1), there is a pull rod (3), the outer side of the upper end of the pull rod (3) is sleeved with a pressing plate (8), and a first wedge-shaped groove is provided at the upper end of the pull rod (3), a first wedge block (9) is inserted into the first wedge-shaped groove, and the lower surface of the first wedge block (9) is arranged in contact with the upper surface of the pressing plate (8); the part radial positioning mechanism includes an outer bracket (5), a first bushing (16), a first mandrel (17), a second wedge block (19), and a first sliding nut (20); on the side wall of the bottom plate (1), there is a fixed outer bracket (5) that is inclined outward, at the upper end of the outer bracket (5), there is a first jack, a first bushing (16) is inserted into the first jack, the first bushing (16) is sleeved on the outer side of the outer end of the first mandrel (17), the first sliding nut (20) is sleeved on the outer side of the inner end of the first mandrel (17), a second wedge-shaped groove is provided in the middle of the first mandrel (17), a second wedge block (19) is inserted into the second wedge-shaped groove, and the outer wall of the second wedge block (19) is arranged in contact with the inner wall of the outer bracket (5); the part axial positioning mechanism includes an n-shaped bracket (10), a second bushing (11), a second mandrel (12), a third wedge block (14), and a second sliding nut (15); at the edge of the upper surface of the bottom plate (1), there is a vertically fixed n-shaped bracket (10), on the horizontal plate of the n-shaped bracket (10), there is a second jack, a second bushing (11) is inserted into the second jack, the second bushing (11) is sleeved on the outer side of the upper end of the second mandrel (12), the second sliding nut (15) is sleeved on the outer side of the lower end of the second mandrel (12); a third wedge-shaped groove is provided in the middle of the second mandrel (12), a third wedge block (14) is inserted into the third wedge-shaped groove, and the upper surface of the third wedge block (14) is arranged in contact with the lower surface of the horizontal plate of the n-shaped bracket (10).

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