Positioning tool for welding pipe fitting support

Abstract

The utility model provides a positioning tool for welding a pipe fitting support, which comprises a first adjusting piece, a driving piece, a mounting seat, a base plate, a clamping assembly, a second adjusting piece, a connecting plate and a connecting plate, the second adjusting piece and the connecting plate are arranged on the base plate, the output end of the driving piece is connected with the base plate and used for driving the base plate to move telescopically, and the output end of the driving piece is connected with the clamping assembly. The connecting plate is connected with the second adjusting piece and used for adjusting the position of the connecting plate relative to the base plate, the mounting base comprises a connecting part and a bearing part which are sequentially connected, the connecting part is arranged on the upper end face of the connecting plate through the first adjusting piece, and the bearing part is arranged on the upper end face of the connecting plate through the second adjusting piece. The first adjusting part is used for adjusting the distance between the mounting base and the connecting plate, the bearing part is used for placing an exhaust pipe support, the clamping assembly is arranged on the bearing part and used for clamping the exhaust pipe support, the exhaust pipe support is clamped, and meanwhile adjustment can be conducted according to the position relation of an exhaust pipe; and the flexibility of the positioning tool is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust pipe brackets, in particular to a positioning tool for welding pipe brackets. Background Art

[0002] At present, the exhaust pipe is a device that is installed between the engine exhaust manifold and the muffler to reduce vibration and noise, facilitate installation and extend the life of the exhaust muffler system. It makes the entire exhaust system flexible. The exhaust pipe is mainly used for light vehicles, micro vehicles and buses, motorcycles, and the exhaust pipe structure is a double-layer corrugated pipe covered with a steel wire mesh sleeve, and the straight edge sections at both ends are covered with a clamping ring. In order to achieve a better muffler effect, the bellows can be equipped with an expansion joint or a mesh sleeve. The main material of the exhaust pipe is stainless steel, and the ferrule and pipe can be made of stainless steel or aluminum-plated steel.

[0003] Before the automobile exhaust pipe is connected to the vehicle frame, a bracket needs to be welded on the automobile exhaust pipe to fix the exhaust pipe and the vehicle frame. The welding strength between the bracket and the exhaust pipe is related to the stability of the exhaust pipe during operation. In the prior art, the bracket is often positioned on the exhaust pipe by a positioning fixture, but this type of positioning fixture has low flexibility and poor versatility.

[0004] Therefore, in order to cooperate with the robot to perform automatic welding, it is necessary to design a positioning tool for welding pipe brackets to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning tool for welding a pipe bracket, which clamps the exhaust pipe bracket through a clamping assembly and adjusts the position of the exhaust pipe bracket relative to the exhaust pipe through a first adjusting member and a second adjusting member, so as to facilitate welding the exhaust pipe bracket to exhaust pipes in different placement positions. The utility model has strong versatility and a wide range of applications.

[0006] The technical solution provided by the utility model is as follows:

[0007] A positioning tool for welding pipe brackets, comprising a first adjusting member, a driving member, a mounting seat, a base plate, a clamping assembly, and a second adjusting member and a connecting plate arranged on the base plate, wherein the output end of the driving member is connected to the base plate to drive the base plate to move telescopically;

[0008] The connecting plate is connected to the second adjusting member to adjust the position of the connecting plate relative to the base plate. The mounting seat comprises a connecting portion and a receiving portion which are sequentially connected. The connecting portion is arranged on the upper end surface of the connecting plate through the first adjusting member. The first adjusting member is used to adjust the distance between the mounting seat and the connecting plate.

[0009] The receiving portion is used for placing the exhaust pipe bracket, and the clamping assembly is arranged on the receiving portion and is used for clamping the exhaust pipe bracket.

[0010] In some embodiments, the second adjusting member includes a positioning block, an X-axis gasket and a Y-axis gasket, the positioning block has two mutually perpendicular mounting surfaces, and the two mounting surfaces are respectively arranged opposite to two surfaces of the connecting plate;

[0011] The X-axis gasket is detachably arranged between one of the mounting surfaces and the connecting plate, so that the connecting plate can be adjusted in the X-axis direction;

[0012] The Y-axis spacer can be detachably arranged between the other mounting surface and the connecting plate to allow the connecting plate to be adjusted in the Y-axis direction.

[0013] In some embodiments, the first adjustment member includes a Z-axis spacer, and the Z-axis spacer is detachably disposed between the mounting seat and the connecting plate to allow the mounting seat to be adjusted in the Z-axis direction.

[0014] In some embodiments, the receiving portion is rotatably disposed at one end of the connecting portion.

[0015] In some embodiments, a limiting column is provided at one end of the receiving portion away from the connecting portion, and the limiting column is suitable for snap-fitting with the limiting hole of the exhaust pipe bracket.

[0016] In some embodiments, the clamping assembly includes an elastic member and two clamping arms, and the two clamping arms are rotatably disposed on the receiving portion through a fixed shaft as a rotating shaft;

[0017] The clamping arm includes a clamping portion and an elastic connecting portion connected in sequence, the fixed axis is located between the clamping portion and the elastic connecting portion, the elastic member is arranged between the elastic connecting portion and the receiving portion, and is in a compressed state, so that the clamping portion clamps the two ends of the exhaust pipe bracket in the width direction.

[0018] In some embodiments, the clamping assembly further includes a third adjusting member and two limiting arms, and the two limiting arms are respectively arranged on the receiving portion through the third adjusting member;

[0019] The third adjusting member is used to adjust the distance between the mounting seat and the limiting arm so that the limiting arm contacts and presses the two ends of the exhaust pipe in the length direction.

[0020] In some embodiments, the driving member includes a cylinder and a transmission plate, the upper end surface of the cylinder is provided with a sliding protrusion, and the base plate is provided with a sliding groove matching with the sliding protrusion, so that the base plate can be movably arranged on the cylinder;

[0021] The transmission plate is arranged on the output end of the cylinder and connected to the base plate to drive the base plate to move telescopically.

[0022] In some embodiments, a limit seat is provided on the lower end surface of the driving member, a stop block is provided on one end of the limit seat, and the stop block is located on a side of the transmission plate away from the cylinder.

[0023] In some embodiments, the second adjusting member includes a first rail and two second rails arranged in parallel, the second rails are arranged on the base plate, and two ends of the first rail are slidably mounted on the two second rails, so that the first rail moves along the length direction of the second rails;

[0024] The connecting plate is movably disposed on the first rail so that the connecting plate moves along a width direction of the second rail.

[0025] The positioning tool for the exhaust pipe bracket provided by the utility model has the following beneficial effects:

[0026] 1. The utility model provides a positioning tool for an exhaust pipe bracket, wherein the clamping assembly can clamp and fix the exhaust pipe bracket, and the base plate is driven to telescopically move through a driving member to adjust the distance between the exhaust pipe bracket and the exhaust pipe, and the position of the exhaust pipe bracket is adjusted through a first adjusting member and a second adjusting member to facilitate alignment of the exhaust pipes with respect to the welding positions of the exhaust pipes, and the flexibility of the positioning tool is increased, and the tool is suitable for exhaust pipes in different position relationships, thereby improving the scope of application and the user experience.

[0027] 2. The utility model provides a positioning tool for an exhaust pipe bracket, wherein a receiving portion is rotatably arranged at one end of the connecting portion, and the rotation of the receiving portion can drive the exhaust pipe bracket to rotate, so as to align the exhaust pipe bracket with the exhaust pipe, further improving the flexibility of the positioning tool.

[0028] 3. The utility model provides a positioning tool for an exhaust pipe bracket, in which a limit arm is arranged on a receiving portion through a third adjusting member. For exhaust pipe brackets of different lengths, different third adjusting members can be replaced to ensure that the limit arm is always in contact and extrusion with the exhaust pipe bracket, so that the positioning tool is suitable for different exhaust pipe brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The preferred implementation scheme will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present solution.

[0030] Figure 1 This is a structural schematic diagram of a positioning tool for an exhaust pipe bracket provided by the utility model;

[0031] Figure 2 This is a front view of a positioning tool for an exhaust pipe bracket provided by the utility model;

[0032] Figure 3 The utility model is a structural schematic diagram of a clamping assembly of a positioning tool for an exhaust pipe bracket.

[0033] Description of Figure Numbers:

[0034] The first adjusting member 1, the Z-axial gasket 11, the driving member 2, the cylinder 21, the mounting seat 3, the connecting portion 31, the receiving portion 32, the limiting column 321, the base plate 4, the clamping assembly 5, the elastic member 51, the fixed shaft 52, the limiting arm 53, the exhaust pipe bracket 54, the clamping arm 55, the clamping portion 551, the elastic connecting portion 552, the second adjusting member 6, the positioning block 61, the X-axial gasket 62, the Y-axial gasket 63, the connecting plate 7, the third adjusting member 8, the limiting seat 9, and the stopper 91. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0036] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0037] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] In one embodiment, a positioning tool for welding pipe brackets is described, which adjusts the position relationship of the exhaust pipe bracket 54 relative to the exhaust pipe through a first adjustment member 1, a second adjustment member 6 and a driving member 2 to ensure that the exhaust pipe bracket 54 can be accurately attached to the exhaust pipe, thereby improving the versatility of the positioning tool for the exhaust pipe bracket.

[0040] Specifically, see the attached drawings of the specification Figure 1 , Figure 2 , Figure 3 A positioning tool for welding pipe bracket includes a first adjusting member 1, a driving member 2, a mounting seat 3, a base plate 4, a clamping assembly 5, a second adjusting member 6 and a connecting plate 7, wherein the output end of the driving member 2 is connected to the base plate 4 to drive the base plate 4 to move telescopically. The second adjusting member 6 and the connecting plate 7 are both arranged on the upper end surface of the base plate 4, the mounting seat 3 is arranged on the connecting plate 7, and the clamping assembly 5 is arranged on the mounting seat 3, the driving member 2 drives the base plate 4 to move, and then drives the clamping assembly 5 to move.

[0041] Correspondingly, the connecting plate 7 is connected to the second adjusting member 6, and the connecting plate 7 adjusts the position of the connecting plate 7 on the base plate 4 through the second adjusting member 6. The mounting seat 3 includes a connecting portion 31 and a receiving portion 32 which are sequentially connected and arranged, and the connecting portion 31 is arranged on the upper end surface of the connecting plate 7 through the first adjusting member 1 to adjust the distance between the connecting portion 31 of the mounting seat 3 and the connecting plate 7. Moreover, the receiving portion 32 is used to place the exhaust pipe bracket 54 and the clamping assembly 5, and the exhaust pipe bracket 54 is clamped and fixed on the receiving portion 32 through the clamping assembly 5.

[0042] It is understandable that in the prior art, in the process of welding the exhaust pipe bracket 54 to the exhaust pipe, the worker usually holds the exhaust pipe bracket 54 by hand and places the exhaust pipe bracket 54 on the exhaust pipe, which requires the worker to hold the exhaust pipe bracket 54 for a long time, which is labor-intensive and has poor welding effect. For this reason, people have proposed a positioning fixture, which fixes the exhaust pipe and then uses the positioning fixture to clamp the exhaust pipe bracket 54 to replace the clamping action of the worker, so as to weld the exhaust pipe bracket 54 to the exhaust pipe. However, this type of positioning fixture has low flexibility and can only be applied to exhaust pipes of specific types or exhaust pipes with specific position relationships, and the user experience is not good.

[0043] When in use, the exhaust pipe bracket 54 is clamped by the clamping assembly 5, and the base plate 4 is driven to move by the driving member 2, thereby driving the exhaust pipe bracket 54 to be attached to the exhaust pipe. If the position of the exhaust pipe changes, or when welding exhaust pipes of different models, the staff adjusts the position of the connecting plate 7 on the base plate 4 through the second adjusting member 6, thereby adjusting the position of the exhaust pipe bracket 54 on the receiving portion 32 relative to the exhaust pipe. Furthermore, the distance between the connecting portion 31 and the connecting plate 7 can be adjusted through the first adjusting member 1, thereby further adjusting the position of the exhaust pipe bracket 54 relative to the exhaust pipe. In this way, the flexibility of the positioning tooling is improved, and it is convenient to attach the exhaust pipe bracket 54 to the exhaust pipe.

[0044] In one embodiment, referring to the accompanying drawings, Figure 1 to Figure 2 This embodiment further describes the second adjusting member 6. The second adjusting member 6 includes a positioning block 61, an X-axis gasket 62, and a Y-axis gasket 63. The positioning block 61 has two mounting surfaces, and the two mounting surfaces are perpendicular to each other. The positioning block 61 and the connecting plate 7 are both arranged on the substrate 4, and the two mounting surfaces are respectively arranged opposite to the two surfaces of the connecting plate 7.

[0045] Accordingly, the X-axis gasket 62 can be detachably arranged between one mounting surface and the connecting plate 7 (the surface corresponding to the connecting plate 7), so that the connecting plate 7 can be adjusted in the X-axis direction on the substrate 4, that is, the X-axis position of the connecting plate 7 on the substrate 4 is changed. Similarly, the Y-axis gasket 63 can be detachably arranged between another mounting surface and the connecting plate (the surface corresponding to the connecting plate 7), so that the connecting plate 7 can be adjusted in the Y-axis direction on the substrate 4, that is, the Y-axis position of the connecting plate 7 on the substrate 4 is changed.

[0046] In addition, the positioning block 61, the connecting plate 7, the X-axial gasket 62 and the Y-axial gasket 63 are all provided with threaded holes that are interconnected, and are connected and fixed by bolts.

[0047] It is understandable that when adjustment is needed, the bolts are loosened to separate the positioning block 61, the connecting plate 7, the X-axial gasket 62 and the Y-axial gasket 63 from each other, and the X-axial gasket 62 and the Y-axial gasket 63 of appropriate thickness are replaced, and then the replaced X-axial gasket 62 and the Y-axial gasket 63 are connected and fixed to the connecting plate 7 and the positioning block 61 by bolts.

[0048] In this embodiment, the staff can change the position relationship of the connecting plate 7 relative to the base plate 4 by replacing the gaskets in two directions (X-axis, Y-axis), thereby achieving the purpose of adjusting the position of the exhaust pipe bracket 54 relative to the exhaust pipe. The positioning is reliable and the adjustment is convenient, which solves the problem of low flexibility of the existing positioning fixture, shortens the adjustment time and reduces the cost.

[0049] Further, see the accompanying drawings of the specification Figure 1 This embodiment provides a specific structure of a first adjusting member 1, wherein the first adjusting member 1 includes a Z-axis gasket 11, which is detachably arranged between the mounting seat 3 and the connecting plate 7, that is, arranged between the receiving portion 32 and the connecting plate 7, so as to achieve Z-axis adjustment of the mounting seat 3 on the connecting plate 7. In addition, the Z-axis gasket 11, the receiving portion 32 and the connecting plate 7 are all provided with threaded holes that are connected to each other, and are connected and fixed by bolts.

[0050] It is understandable that when adjustment is needed, loosen the bolts to separate the Z-axial gasket 11, the receiving portion 32 and the connecting plate 7 from each other, and replace the Z-axial gasket 11 with a suitable thickness, and then connect and fix the replaced Z-axial gasket 11 to the connecting plate 7 and the mounting seat 3 with bolts.

[0051] In this embodiment, the staff can change the position relationship of the mounting seat 3 relative to the connecting plate 7 by replacing the gasket in the Z-axis direction, thereby achieving the purpose of adjusting the position of the exhaust pipe bracket 54 relative to the exhaust pipe. The X-axis gasket 62, the Y-axis gasket 63 and the Z-axis gasket 11 cooperate with each other to achieve the position adjustment of the exhaust pipe bracket 54 in three directions, further improving the flexibility of the positioning tooling and further improving the user experience.

[0052] Furthermore, the receiving portion 32 is rotatably disposed at one end of the connecting portion 31 , and the receiving portion 32 rotates, thereby driving the exhaust pipe bracket 54 to rotate, so that the exhaust pipe bracket 54 is aligned with the exhaust pipe, further improving flexibility.

[0053] Specifically, a connecting shaft is provided at one end of the receiving portion 32 close to the connecting portion 31, and a mounting hole matching the connecting shaft is provided at one end of the connecting portion 31 close to the receiving portion 32. The connecting shaft is rotatably provided in the mounting hole, and a damping member is provided at the connection between the connecting shaft and the mounting hole to increase the friction between the connecting shaft and the inner wall of the mounting hole, so that the receiving portion 32 can be maintained for a long time after being rotated to a suitable position, so as to facilitate the welding of the exhaust pipe bracket 54.

[0054] Of course, in actual production applications, there are many ways to achieve the rotation of the receiving portion 32 relative to the connecting portion 31, which are not described one by one here, and are all within the protection scope of the present utility model.

[0055] In one embodiment, referring to the accompanying drawings, Figure 3 A limiting column 321 is provided at one end of the receiving portion 32 away from the connecting portion 31 , and the limiting column 321 is suitable for engaging with the limiting hole of the exhaust pipe bracket 54 to fix the exhaust pipe bracket 54 on the receiving portion 32 .

[0056] Further, see the accompanying drawings of the specification Figure 3 The present embodiment further illustrates the clamping assembly 5, wherein the clamping assembly 5 includes an elastic member 51 and a clamping arm 55, and the clamping arm 55 is provided with two. The two clamping arms 55 respectively use the fixed shaft 52 as a rotating shaft so that the clamping arms 55 can rotate relative to the receiving portion 32.

[0057] The clamping arm 55 includes a clamping portion 551 and an elastic connecting portion 552, which are connected in sequence, and the fixed shaft 52 is arranged between the clamping portion 551 and the elastic connecting portion 552, and the clamping portion 551 is suitable for clamping and matching with both ends of the exhaust pipe bracket 54 in the width direction. The elastic member 51 is arranged between the elastic connecting portion 552 and the receiving portion 32, and is in a compressed state. Under the action of the restoring force of the elastic member 51, the elastic connecting portion 552 is pushed to make the clamping portion 551 and the exhaust pipe bracket 54 locked and matched. Pressing the elastic connecting portion 552 downward releases the limit between the clamping portion 551 and the exhaust pipe bracket 54.

[0058] Furthermore, the clamping assembly 5 also includes a third adjusting member 8 and two limiting arms 53. The two limiting arms 53 are respectively arranged on the receiving portion 32 through the third adjusting member 8 (the third adjusting member 8 is arranged between the limiting arms 53 and the receiving portion 32), and the third adjusting member 8 is used to adjust the distance between the mounting seat 3 and the limiting arms 53 so that the limiting arms 53 and the exhaust pipe bracket 54 are in contact and squeezed with each other at both ends in the length direction.

[0059] In addition, the third adjusting member 8 can be configured as a gasket, and the third adjusting member 8, the mounting seat 3 and the limiting arm 53 are all provided with threaded holes that are interconnected, and are connected and fixed by bolts.

[0060] It is understandable that after an exhaust pipe bracket 54 is welded, if the length of the next exhaust pipe bracket 54 to be replaced changes, the bolts can be loosened to separate the third adjustment member 8, the mounting seat 3 and the limit arm 53 from each other, and a gasket of appropriate thickness can be replaced, and the replaced gasket can be connected and fixed to the mounting seat 3 and the limit arm 53 by bolts.

[0061] In this embodiment, the staff can change the distance between the mounting seat 3 and the limiting arm 53 by replacing the third adjusting member 8, thereby making the clamping assembly 5 suitable for exhaust pipe brackets 54 of different lengths, further improving the flexibility of the positioning tooling and further enhancing the user experience.

[0062] In one embodiment, referring to the accompanying drawings, Figure 1 The driving member 2 includes a cylinder 21 and a transmission plate. The upper end surface of the cylinder 21 is provided with a sliding protrusion, and the base plate 4 is provided with a sliding groove matched with the sliding protrusion, so that the base plate 4 can be movably arranged on the cylinder 21. Correspondingly, the transmission plate is arranged on the output end of the cylinder 21 and connected to the base plate 4 to drive the base plate 4 to move telescopically.

[0063] Further, see the accompanying drawings of the specification Figure 1 A limit seat 9 is provided on the lower end surface of the driving member 2, and a stopper 91 is provided on one end of the limit seat 9. The stopper 91 is located on the side of the transmission plate away from the cylinder 21 to limit the stroke of the base plate 4.

[0064] In one embodiment, this embodiment provides another specific form of the second adjusting member 6. The second adjusting member includes a first track and two second tracks arranged in parallel, the second tracks are arranged on the base plate 4, and the two ends of the first track are slidably mounted on the two second tracks, respectively, so that the first track moves along the length direction of the second track. Correspondingly, the connecting plate 7 is movably arranged on the first track, so that the connecting plate 7 moves along the length direction of the first track, that is, the connecting plate 7 moves along the width direction of the second track.

[0065] Preferably, a first limiting groove matching with the second rail is provided on one side of the first rail close to the second rail, so that the first rail can be movably disposed on the second rail through the limiting groove.

[0066] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A positioning tool for welding pipe bracket, characterized in that: It includes a first adjusting member, a driving member, a mounting seat, a base plate, a clamping assembly, and a second adjusting member and a connecting plate arranged on the base plate, wherein the output end of the driving member is connected to the base plate to drive the base plate to move telescopically; The connecting plate is connected to the second adjusting member to adjust the position of the connecting plate relative to the base plate. The mounting seat comprises a connecting portion and a receiving portion which are sequentially connected. The connecting portion is arranged on the upper end surface of the connecting plate through the first adjusting member. The first adjusting member is used to adjust the distance between the connecting portion and the connecting plate. The receiving portion is used for placing the exhaust pipe bracket, and the clamping assembly is arranged on the receiving portion and is used for clamping the exhaust pipe bracket.

2. A positioning tool for welding pipe bracket according to claim 1, characterized in that: The second adjusting member comprises a positioning block, an X-axis gasket and a Y-axis gasket, the positioning block has two mutually perpendicular mounting surfaces, and the two mounting surfaces are respectively arranged opposite to the two surfaces of the connecting plate; The X-axis gasket is detachably arranged between one of the mounting surfaces and the connecting plate, so that the connecting plate can be adjusted in the X-axis direction; The Y-axis spacer can be detachably arranged between the other mounting surface and the connecting plate to allow the connecting plate to be adjusted in the Y-axis direction.

3. A positioning tool for welding pipe bracket according to claim 2, characterized in that: The first adjusting member comprises a Z-axis spacer, and the Z-axis spacer is detachably arranged between the mounting seat and the connecting plate so that the mounting seat can be adjusted in the Z-axis direction.

4. A positioning tool for welding pipe bracket according to claim 3, characterized in that: The receiving portion is rotatably arranged at one end of the connecting portion.

5. A positioning tool for welding pipe bracket according to claim 4, characterized in that: A limiting column is arranged at one end of the receiving portion away from the connecting portion, and the limiting column is suitable for being engaged with the limiting hole of the exhaust pipe bracket.

6. A positioning tool for welding pipe bracket according to any one of claims 1-5, characterized in that: The clamping assembly comprises an elastic member and two clamping arms, and the two clamping arms are rotatably arranged on the receiving portion through a fixed shaft as a rotating shaft; The clamping arm includes a clamping portion and an elastic connecting portion connected in sequence, the fixed axis is located between the clamping portion and the elastic connecting portion, the elastic member is arranged between the elastic connecting portion and the receiving portion, and is in a compressed state, so that the clamping portion clamps the two ends of the exhaust pipe bracket in the width direction.

7. A positioning tool for welding pipe bracket according to claim 6, characterized in that: The clamping assembly further includes a third adjusting member and two limiting arms, and the two limiting arms are respectively arranged on the receiving portion through the third adjusting member; The third adjusting member is used for adjusting the distance between the mounting seat and the limiting arm so that the limiting arm contacts and presses the two ends of the exhaust pipe support in the length direction.

8. A positioning tool for welding pipe bracket according to claim 7, characterized in that: The driving member comprises a cylinder and a transmission plate, the upper end surface of the cylinder is provided with a sliding protrusion, and the base plate is provided with a sliding groove matched with the sliding protrusion, so that the base plate can be movably arranged on the cylinder; The transmission plate is arranged on the output end of the cylinder and connected to the base plate to drive the base plate to move telescopically.

9. A positioning tool for welding pipe bracket according to claim 8, characterized in that: It comprises a limit seat arranged on the lower end surface of the driving member, one end of the limit seat is provided with a stopper, and the stopper is located on a side of the transmission plate away from the cylinder.

10. A positioning tool for welding pipe bracket according to claim 1, characterized in that: The second adjusting member comprises a first rail and two second rails arranged in parallel, the second rails are arranged on the base plate, and two ends of the first rail are slidably mounted on the two second rails respectively, so that the first rail moves along the length direction of the second rails; The connecting plate is movably disposed on the first rail so that the connecting plate moves along a width direction of the second rail.

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