Quick-release clamp spot welding tool

Abstract

The utility model relates to a spot welding tool for a quick-release clamp. The spot welding tool comprises a supporting ring, an annular limiting protrusion and a check block. The annular limiting protrusion is arranged in the middle of the outer circumferential end face of the supporting ring in the circumferential direction. The check blocks are evenly distributed on the outer circumferential end face of the supporting ring in the circumferential direction and stretch across the outer portion of the annular limiting protrusion. According to the utility model, a special positioning tool is designed by utilizing the characteristics of the strap of the hoop to carry out strap connection point welding, and a product integral assembling and welding tool is designed in a fixing form that the strap is matched with the clamping ring, so that the accurate positioning of the product is realized, and the consistency of the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of aircraft pipeline connection technology, and in particular to a quick-release clamp spot welding fixture. Background Technology

[0002] AS5355 / 3 quick-release clamps are suitable for aircraft piping connections, such as... Figure 1 and Figure 2 As shown, the V-type clamp AS5355 / 3 has a split-type structure with three clamps working together on the two flanges of the pipeline flange. The clamp achieves its sealing effect through 40° V-shaped surface contact.

[0003] However, during spot welding assembly, poor alignment of the retaining ring in the width direction of the clamp can lead to poor contact between the retaining ring and the flange flange, resulting in clamp twisting, excessive local stress, and reduced clamp life. Therefore, ensuring the alignment and concentricity of the retaining ring in the width direction of the clamp is crucial.

[0004] Therefore, a reasonable processing plan should be formulated during assembly and spot welding to ensure that the stress state of the hoop is basically balanced during operation and to improve the service life of the hoop. Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a quick-release clamp spot welding fixture. This fixture utilizes the characteristics of the clamp band to design a dedicated positioning tool for welding the clamp band connection points. Furthermore, it employs a fixing method involving the clamp band and the retaining ring to design an overall product assembly welding fixture, thereby improving positioning accuracy and ensuring consistent product quality.

[0006] The technical solution adopted in this utility model is as follows:

[0007] The present invention proposes a quick-release clamp spot welding fixture, comprising a support ring, an annular limiting protrusion, and a stop block; the annular limiting protrusion is circumferentially disposed in the middle of the outer circumferential end face of the support ring; the stop block is circumferentially evenly distributed on the outer circumferential end face of the support ring and spans across the outside of the annular limiting protrusion.

[0008] Furthermore, the annular limiting protrusion has several radial positioning holes extending circumferentially, and the positioning holes radially penetrate the support ring.

[0009] Furthermore, the tooling is made entirely of stainless steel.

[0010] Furthermore, the annular limiting protrusion has a structure that is similar to the inner side of the retaining ring.

[0011] Furthermore, the annular limiting protrusion is integrally formed with the support ring.

[0012] Furthermore, the width of the tooling is the same as the width of the hoop.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The tooling support part is fully shaped to fit the inside of the retaining ring, so that the retaining ring is subjected to uniform and stable force during welding, and avoids movement during welding.

[0015] 2. The dimensions of the tooling sidewall are consistent with the width of the clamp. Before tightening the bolts, place the clamp sidewall and the tooling sidewall on the same plane, and tighten them while adjusting them so that the clamp is completely centered on the tooling when tightened. At the same time, the retaining ring is also restricted to the center of the tooling by the auxiliary structure of the tooling, thereby ensuring that the retaining ring and the clamp are completely centered.

[0016] 3. The retaining ring can restrict the circumferential position through the stop of the tooling. The auxiliary support of the tooling is equipped with positioning holes, and the dimensional tolerance is precisely controlled. On the one hand, it can allow the electrode to pass through, and on the other hand, it can position the electrode, thereby determining the spot welding position and ensuring good consistency. Attached Figure Description

[0017] Figure 1 Here is a structural schematic diagram of the existing AS5355 / 3 clamp;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the connection between the AS5355 / 3 clamp and the pipeline flange.

[0019] Figure 3 This is a structural schematic diagram of a quick-release clamp spot welding fixture proposed in this utility model;

[0020] Figure 4 This is a schematic diagram showing the effect of this utility model when used with the AS5355 / 3 clamp.

[0021] In the attached drawings, the following reference numerals are used: 1-support ring; 2-stop block; 3-annular limiting protrusion; 4-positioning hole; 5-hoop; 6-clamp; 7-T-bolt assembly; 8-bolt sleeve assembly; 9-self-locking nut; 10-weld point. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] It should be noted that in the description of this utility model, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0024] See appendix Figure 3-4 The present invention proposes a quick-release clamp spot welding fixture, which includes a support ring 1, a stop block 2 and an annular limiting protrusion 3.

[0025] The annular limiting protrusion 3 is integrally formed circumferentially and disposed in the middle of the outer circumferential end face of the support ring 1. The annular limiting protrusion 3 is an auxiliary structure with the inner side of the retaining ring 6. In this embodiment, three stops 2 are provided, which are circumferentially evenly distributed and fixed to the outer circumferential end face of the support ring 1 and span across the outside of the annular limiting protrusion 3. The three stops 2 are respectively located between the adjacent ends of the three retaining rings 6 to achieve circumferential positioning.

[0026] In this embodiment, the annular limiting protrusion 3 has several radial positioning holes 4 extending circumferentially, and the positioning holes 4 radially penetrate the support ring 1. The dimensional tolerance of the positioning holes 4 is precisely controlled, which allows the electrode to pass through and positions the electrode, thereby ensuring that the spot welding position is determined and has good consistency.

[0027] The annular limiting protrusion 3 of the welding fixture adopts a structure similar to that of the retaining ring 6, which enables precise and stable positioning of the retaining ring 6. The retaining ring 6 is positioned in the circumferential direction by three stops 2. The relative position of the clamping band 5 and the retaining ring 6 is limited by the side wall of the fixture, and the position of the weld point can be controlled by the circumferential positioning hole 4.

[0028] The tooling is made entirely of stainless steel, which has the characteristics of long service life, wear resistance, and rust prevention. At the same time, this material is non-magnetic and does not interfere with welding.

[0029] During the auxiliary clamp spot welding assembly, first install the retaining ring 6 on the welding fixture, and fully position it using the annular limiting protrusion 3 and the stop block 2 (the retaining ring 6 and the support ring 1 are on the same plane); then clamp the clamp 5 onto the retaining ring, and pre-tighten the T-bolt assembly 7; place the fixture and clamp on the same plane, and while adjusting the clamp 5 to be on the same plane as the side wall of the support ring 1 (that is, at this time the clamp 5 and the retaining ring 6 are also on the same plane), tighten the T-bolt assembly 7; finally, spot weld through the positioning hole 4, thus achieving precise positioning for spot welding.

[0030] All matters not detailed in this utility model are common knowledge.

[0031] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A quick release clamp spot welding tool characterized by; The tooling includes a support ring, an annular limiting protrusion, and a stop block; the annular limiting protrusion is circumferentially disposed in the middle of the outer circumferential end face of the support ring; the stop block is circumferentially evenly distributed on the outer circumferential end face of the support ring and spans across the outside of the annular limiting protrusion.

2. A quick release clamp point welding tool according to claim 1, characterized in that: The annular limiting protrusion has several radial positioning holes extending circumferentially, and the positioning holes radially penetrate the support ring.

3. A quick release clamp point welding tool as claimed in claim 1, wherein: The tooling is made entirely of stainless steel.

4. The quick-release clamp point welding fixture of claim 1, wherein: The annular limiting protrusion is a structure that is similar to the inner side of the retaining ring.

5. A quick release clamp point welding tool as claimed in claim 1, wherein: The annular limiting protrusion is integrally formed with the support ring.

6. A quick release clamp point welding tool as claimed in claim 1, wherein: The width of the tooling is the same as the width of the hoop.

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