Shell welding auxiliary tool for tail gas purification device

Abstract

The utility model provides a shell welding auxiliary tool for a tail gas purification device. The shell welding auxiliary tool comprises a base, a first installation base, a second installation base and an adjusting assembly. The base is provided with two parallel guide rails which are arranged at an interval, and each guide rail is horizontally arranged; and a welding gun is fixed on the base. The first mounting seat is provided with a first clamping space which can clamp one of the sub-shells and is rotatably connected with the sub-shell; the second mounting base is provided with a second clamping space which can clamp the other sub-shell and allows the sub-shell to be rotatably connected. The adjusting assembly can adjust the second mounting base to move close to the first mounting base, so that the two sub-shells are in butt joint, the first mounting base and the second mounting base are pushed to move synchronously, and a butt joint seam corresponds to the welding end of the welding gun. According to the shell welding auxiliary tool for the tail gas purification device, it can be guaranteed that a butt joint seam moves to the position of a welding gun, it is guaranteed that two sub-shells make close contact, the follow-up welding effect is guaranteed, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary tooling for manufacturing exhaust gas purification devices, and particularly relates to an auxiliary tooling for shell welding of exhaust gas purification devices. Background Technique

[0002] The catalytic converter for vehicles mainly refers to an exhaust gas purification device, which generally includes a cylindrical outer shell, a honeycomb catalytic unit located inside the outer shell, a filtering unit located at the front end of the catalytic unit, etc. The filtering unit and the catalytic unit are usually installed in two sub-outer shells respectively, and then the two sub-outer shells are hermetically connected, such as by welding. The sub-outer shells involved are usually circular. In order to facilitate the coaxial arrangement of the two sub-outer shells, auxiliary tools are required during welding.

[0003] In the prior art, for the clamping of two sub-outer shells, two placement seats are arranged at intervals to ensure the coaxial arrangement of the two sub-outer shells. The specific placement steps are as follows: after one sub-outer shell is clamped and before the other sub-outer shell is clamped, manual adjustment by the staff is required to make the end of the latter sub-outer shell abut against the end of the former sub-outer shell, and then the latter sub-outer shell is clamped. However, the docking end of each sub-outer shell needs to extend a certain distance out of the placement seat to form a cantilever structure. Therefore, there will be certain errors in the manual method, and there are often gaps between the two sub-outer shells during the clamping process of the latter sub-outer shell, which affects the welding effect. Moreover, the position of the welding torch is fixed. After the sub-outer shells are docked, the docking point will deviate from the welding torch, making it difficult to adjust. Summary of the Utility Model

[0004] The embodiment of the utility model provides an auxiliary tooling for shell welding of an exhaust gas purification device, aiming to solve the problem of poor practicability of the auxiliary tool used for welding the outer shell of the existing exhaust gas purification device.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide an auxiliary tooling for shell welding of an exhaust gas purification device, including:

[0006] A base having two parallel and spaced guide rails, each of the guide rails being horizontally arranged; a welding torch is fixed on the base;

[0007] A first mounting seat slidably arranged on the two guide rails, having a first clamping space for clamping one of the sub-outer shells and for rotatably connecting the sub-outer shell;

[0008] A second mounting seat slidably arranged on the two guide rails and spaced from the first mounting seat, the second mounting seat having a second clamping space for clamping the other sub-outer shell and for rotatably connecting the sub-outer shell; the axis of the second clamping space is collinear with that of the second clamping space;

[0009] The adjustment assembly is arranged on the base and connected to the second mounting seat, and is used to adjust the second mounting seat to move closer to the first mounting seat, so that the two sub - shells are docked, and to push the first mounting seat and the second mounting seat to move synchronously, and to make the docking seam correspond to the welding end of the welding torch.

[0010] In a possible implementation manner, the first mounting seat includes:

[0011] A first sliding bottom plate, which is slidably connected to the two guide rails;

[0012] Two first carrier rollers are provided. Both of the two first carrier rollers are rotatably arranged on the first sliding bottom plate, and the rotation axes of the first carrier rollers are arranged along the length direction of the guide rails; the two first carrier rollers are arranged at intervals along the interval direction of the two guide rails;

[0013] A first lifting frame, the bottom end of which is fixedly arranged on the first sliding bottom plate and the top end extends upward;

[0014] A first telescopic structure, which is fixedly arranged at the top end of the first lifting frame;

[0015] A first pressure roller is located above the two first carrier rollers and is connected to the telescopic end of the first telescopic structure, and is used to move up and down under the drive of the first telescopic structure; a first clamping space for clamping the sub - shell and allowing the sub - shell to rotate is formed between the first pressure roller and the two first carrier rollers.

[0016] In a possible implementation manner, two sliding connection parts are provided at the bottom of the first sliding bottom plate, and the two sliding connection parts are respectively slidably connected to the two guide rails;

[0017] Wherein, the first mounting seat further includes springs. Two springs are provided. The two springs are respectively sleeved on the two guide rails, and one end of each spring abuts against the base, and the other end abuts against the corresponding sliding connection part. The two springs are used to elastically move the first sliding bottom plate, so that the first sliding bottom plate has a continuous tendency to move towards the second mounting seat.

[0018] In a possible implementation manner, the length of each first carrier roller is greater than the length of the sub - shell; the length of the first pressure roller is equal to the length of the first carrier roller.

[0019] In a possible implementation manner, the second mounting seat includes:

[0020] A second sliding bottom plate, which is slidably connected to the two guide rails;

[0021] The second supporting rollers, there are two of them, and both of the second supporting rollers are rotatably arranged on the second sliding bottom plate, and the rotation axes of the second supporting rollers are arranged along the length direction of the guide rail; the two second supporting rollers are arranged at intervals along the interval direction of the two guide rails;

[0022] The second lifting frame, the bottom end of which is fixedly arranged on the second sliding bottom plate, and the top end extends upward;

[0023] The second telescopic structure is fixedly arranged at the top end of the second lifting frame;

[0024] The second pressing roller is located above the two second supporting rollers and is connected to the telescopic end of the second telescopic structure, and is used for lifting and moving under the drive of the second telescopic structure; a second clamping space for clamping the sub-shell and allowing the sub-shell to rotate is formed between the second pressing roller and the two second supporting rollers.

[0025] In a possible implementation manner, the adjusting assembly includes an adjusting screw rod, the adjusting screw rod is arranged along the length direction of the guide rail, the adjusting screw rod is in screw-threaded fit connection with the threaded hole arranged on the base, one end of the adjusting screw rod passes through the threaded hole and is rotatably connected to the adapter block arranged on the second sliding bottom plate, and a hand-operated wheel is arranged at the end of the adjusting screw rod located outside the base.

[0026] In a possible implementation manner, the length of each of the second supporting rollers is greater than the length of the sub-shell; the length of the second pressing roller is equal to the length of the second supporting roller.

[0027] In this implementation manner, the base can ensure support, and the two guide rails arranged on the base can ensure stable support for the first mounting seat and the second mounting seat. The first mounting seat and the second mounting seat can respectively clamp the two sub-shells. After the two sub-shells are coaxially clamped, the second mounting seat can be driven by the adjusting assembly to move closer to the first mounting seat, so that the docking ends of the two sub-shells are abutted, and at the same time, it can ensure that the docking seam moves to the position of the welding torch, effectively avoiding the error of manual operation, thus ensuring the docking quality of the two sub-shells and the subsequent welding effect, and having strong practicability. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the auxiliary tooling for shell welding of the tail gas purification device provided by the embodiment of the present invention;

[0029] Figure 2 It is a schematic bottom view structural diagram of the auxiliary tooling for shell welding of the tail gas purification device provided by the embodiment of the present invention.

[0030] Description of the Reference Numerals:

[0031] 10. Base; 11. Guide rail; 12. Welding torch;

[0032] 20. First mounting seat; 21. First sliding bottom plate; 22. First supporting roller; 23. First hoisting frame; 24. First telescopic structure; 25. First pressure roller; 26. Sliding joint part; 27. Spring;

[0033] 30. Second mounting seat; 31. Second sliding bottom plate; 32. Second supporting roller; 33. Second hoisting frame; 34. Second telescopic structure; 35. Second pressure roller; 36. Adapter block;

[0034] 40. Adjusting assembly;

[0035] 50. Sub - housing. Detailed implementation mode

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0037] Please refer to Figure 1 and Figure 2 together. Now, a shell welding auxiliary tooling for an exhaust gas purification device provided by the present utility model will be described. The shell welding auxiliary tooling for an exhaust gas purification device includes a base 10, a first mounting seat 20, a second mounting seat 30 and an adjusting assembly 40. The base 10 has two parallel and spaced - apart guide rails 11, and each guide rail 11 is horizontally arranged; a welding torch 12 is fixed on the base 10. The first mounting seat 20 is slidably arranged on the two guide rails 11 and has a first clamping space for clamping one of the sub - housings 50 and allowing the sub - housing 50 to be rotatably connected. The second mounting seat 30 is slidably arranged on the two guide rails 11 and is spaced from the first mounting seat 20. The second mounting seat 30 has a second clamping space for clamping the other sub - housing 50 and allowing the sub - housing 50 to be rotatably connected. The axes of the second clamping space and the second clamping space are collinear. The adjusting assembly 40 is arranged on the base 10 and is connected to the second mounting seat 30, and can adjust the second mounting seat 30 to move closer to the first mounting seat 20, so that the two sub - housings 50 are butted, and can push the first mounting seat 20 and the second mounting seat 30 to move synchronously, and make the butting seam correspond to the welding end of the welding torch 12.

[0038] Compared to the prior art, the auxiliary tooling for welding the shell of the exhaust gas purification device provided in this embodiment has a base 10 that can ensure support, and two guide rails 11 provided on the base 10 can ensure stable support for the first mounting seat 20 and the second mounting seat 30. The first mounting seat 20 and the second mounting seat 30 can respectively clamp the two sub-housings 50. After the two sub-housings 50 are coaxially clamped, the adjustment assembly 40 can be used to drive the second mounting seat 30 to move closer to the first mounting seat 20, thereby causing the butt ends of the two sub-housings 50 to abut each other. At the same time, the butt joint can be moved to the position of the welding gun 12, effectively avoiding errors caused by manual operation, thereby ensuring the butt joint quality of the two sub-housings 50 and the subsequent welding effect, and having strong practicality.

[0039] It should be noted that after the two sub-housings 50 are butted together, the first mounting seat 20 and the second mounting seat 30 are moved synchronously via the adjustment assembly 40 so that the butt joint aligns with the welding end of the welding torch 12. During the welding process, the two sub-housings 50 need to be rotated synchronously. Specifically, the butt joint gap can be spot welded to ensure the connection between the two sub-housings 50. The welding torch 12 needs to be located between the first mounting seat 20 and the second mounting seat 30 and can be a flip-type structure. That is, after the butt joint is in place, it pitches and rotates until it contacts the sub-housing 50, and then welding is achieved as the sub-housing 50 rotates. This technology is prior art and will not be described in detail here.

[0040] In some embodiments, the first mounting base 20 may be configured as follows: Figure 1 The structure shown. Figure 1 The first mounting base 20 includes a first sliding base 21, a first supporting roller 22, a first hoisting frame 23, a first telescopic structure 24, and a first pressure roller 25. The first sliding base 21 is slidably connected to the two guide rails 11. Two first supporting rollers 22 are provided, and both first supporting rollers 22 are rotatably mounted on the first sliding base 21, with the rotation axis of each first supporting roller 22 arranged along the length direction of the guide rail 11. The two first supporting rollers 22 are spaced apart along the spacing direction of the two guide rails 11. The bottom end of the first hoisting frame 23 is fixed to the first sliding base 21, and the top end extends upward. The first telescopic structure 24 is fixed to the top end of the first hoisting frame 23. The first pressure roller 25 is located above the two first supporting rollers 22 and is connected to the telescopic end of the first telescopic structure 24. It can be raised and lowered by the first telescopic structure 24. A first clamping space is formed between the first pressure roller 25 and the two first supporting rollers 22 for the sub-housing 50 to clamp and rotate.

[0041] The first sliding bottom plate 21 can ensure the sliding connection with the two guide rails 11, and the two first supporting rollers 22 can ensure the support of the sub-housing 50. The first telescopic structure 24 provided on the first lifting frame 23 drives the first pressing roller 25 to contact the sub-housing 50. The first pressing roller 25 and the two first supporting rollers 22 jointly clamp the sub-housing 50. At the same time, the sub-housing 50 can also rotate, thereby ensuring subsequent circular welding.

[0042] The first telescopic structure 24 can be a cylinder.

[0043] It should be noted that the first supporting roller can also be rotated by a driver that is power-connected to one of the first supporting rollers 22, which further reduces the labor force. This technology is an existing technology and will not be elaborated here.

[0044] In some embodiments, the above-mentioned first mounting seat 20 can adopt the structure as Figure 1 shown. Refer to Figure 1 , and two sliding parts 26 that are respectively slidably connected to the two guide rails 11 are provided at the bottom of the first sliding bottom plate 21.

[0045] Among them, the first mounting seat 20 further includes two springs 27. The two springs 27 are respectively sleeved on the two guide rails 11. One end of each spring 27 abuts against the base 10, and the other end abuts against the corresponding sliding part 26. The two springs 27 can bounce the first sliding bottom plate 21, so that the first sliding bottom plate 21 has a continuous tendency to move towards the second mounting seat 30.

[0046] The spring 27 can bounce the first mounting seat 20 to move closer to the second mounting seat 30, thereby ensuring that the two sub-housings 50 can be stably abutted, and ensuring the welding quality and welding effect.

[0047] In some embodiments, the above-mentioned first supporting roller 22 can adopt the structure as Figure 1 shown. Refer to Figure 1 , the length of each first supporting roller 22 is greater than the length of the sub-housing 50. The length of the first pressing roller 25 is equal to the length of the first supporting roller 22. This structure can ensure an increased contact area with the sub-housing 50, thereby avoiding the deflection of the sub-housing 50 before clamping the sub-housing 50, and ensuring the coaxial setting of the two sub-housings 50.

[0048] In some embodiments, the above-mentioned second mounting seat 30 can adopt the structure as Figure 1 shown. Refer to Figure 1, the second mounting base 30 includes a second sliding bottom plate 31, second carrier rollers 32, a second lifting frame 33, a second telescopic structure 34, and a second pressure roller 35. The second sliding bottom plate 31 is slidably connected to the two guide rails 11. There are two second carrier rollers 32, and the two second carrier rollers 32 are rotatably arranged on the second sliding bottom plate 31, and the rotation axes of the respective second carrier rollers 32 are arranged along the length direction of the guide rails 11. The two second carrier rollers 32 are arranged at intervals along the interval direction of the two guide rails 11. The bottom end of the second lifting frame 33 is fixedly arranged on the second sliding bottom plate 31, and the top end extends upward. The second telescopic structure 34 is fixedly arranged at the top end of the second lifting frame 33. The second pressure roller 35 is located above the two second carrier rollers 32 and is connected to the telescopic end of the second telescopic structure 34, and can move up and down under the drive of the second telescopic structure 34. A second clamping space for clamping the sub-shell 50 and allowing the sub-shell 50 to rotate is formed between the second pressure roller 35 and the two second carrier rollers 32.

[0049] The second sliding bottom plate 31 can ensure the sliding connection with the two guide rails 11, and the two second carrier rollers 32 can ensure the loading of the sub-shell 50. The second telescopic structure 34 arranged on the second lifting frame 33 drives the second pressure roller 35 to contact the sub-shell 50. The second pressure roller 35 and the two second carrier rollers 32 jointly clamp the sub-shell 50, and at the same time, the sub-shell 50 can also rotate, thereby ensuring the subsequent circular welding.

[0050] The second telescopic structure 34 can be a cylinder.

[0051] It should be noted that the second carrier roller 32 can also be driven to rotate by a driver that is power-connected to one of the second carrier rollers 32, but the rotation speed of the second carrier roller 32 needs to be consistent with that of the first carrier roller 22 to further reduce the manpower. This technology is an existing technology and will not be elaborated here.

[0052] In some embodiments, the above-mentioned adjusting assembly 40 can adopt the structure as Figure 2 shown. Refer to Figure 2 , the adjusting assembly 40 includes an adjusting screw. The adjusting screw is arranged along the length direction of the guide rail 11 and is in screw-threaded engagement with a threaded hole arranged on the base 10. One end of the adjusting screw passes through the threaded hole and is rotatably connected to a transfer block 36 arranged on the second sliding bottom plate 31. A hand-operated wheel is arranged at the end of the adjusting screw outside the base 10.

[0053] Through the rotational connection between the adjusting screw and the transfer block 36, and at the same time the screw-threaded engagement between the adjusting screw and the threaded hole on the base 10, it can ensure that the second mounting base 30 slides on the guide rail 11, thereby ensuring that the welding seam corresponds to the welding torch 12, and at the same time, it can also eliminate errors and ensure the stable contact of the two sub-shells 50.

[0054] In some embodiments, the above-mentioned second supporting roller 32 can adopt the structure as Figure 2 shown. Refer to Figure 2 . The length of each second supporting roller 32 is greater than the length of the sub-housing 50. The length of the second pressing roller 35 is equal to the length of the second supporting roller 32.

[0055] This structure can ensure an increased contact area with the sub-housing 50, thereby avoiding the deflection of the sub-housing 50 before clamping the sub-housing 50, and can ensure the coaxial setting of the two sub-housings 50.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The shell welding auxiliary tooling for an exhaust gas purification device, characterized in that Including: A base having two parallel and spaced rails, each of the rails being horizontally arranged; a welding torch is fixed on the base; A first mounting seat slidably arranged on the two rails, having a first clamping space for clamping one of the sub - shells and for rotatably connecting the sub - shell; A second mounting seat slidably arranged on the two rails and spaced from the first mounting seat, the second mounting seat having a second clamping space for clamping the other sub - shell and for rotatably connecting the sub - shell; the axes of the second clamping space and the second clamping space are collinear; An adjusting assembly arranged on the base and connected to the second mounting seat, for adjusting the second mounting seat to move closer to the first mounting seat, so that the two sub - shells are docked, and for pushing the first mounting seat and the second mounting seat to move synchronously, and making the docking seam correspond to the welding end of the welding torch.

2. The auxiliary tooling for shell welding of the tail gas purification device according to claim 1, characterized in that, The first mounting seat includes: A first sliding bottom plate slidably connected to the two rails; Two first carrier rollers, both of the first carrier rollers are rotatably arranged on the first sliding bottom plate, and the rotation axes of each of the first carrier rollers are arranged along the length direction of the rails; the two first carrier rollers are spaced along the interval direction of the two rails; A first lifting frame, with the bottom end fixedly arranged on the first sliding bottom plate and the top end extending upward; A first telescopic structure fixedly arranged at the top end of the first lifting frame; A first pressing roller located above the two first carrier rollers and connected to the telescopic end of the first telescopic structure, for moving up and down under the drive of the first telescopic structure; a first clamping space for clamping the sub - shell and for rotatably connecting the sub - shell is formed between the first pressing roller and the two first carrier rollers.

3. The auxiliary tooling for shell welding of the tail gas purification device according to claim 2, characterized in that, Two sliding connection parts respectively slidably connected to the two rails are arranged at the bottom of the first sliding bottom plate; Wherein, the first mounting seat further includes two springs, the two springs are respectively sleeved on the two rails, and one end of each spring abuts against the base, and the other end abuts against the corresponding sliding connection part, and the two springs are used for elastically moving the first sliding bottom plate, so that the first sliding bottom plate has a continuous tendency to move towards the second mounting seat direction.

4. The auxiliary tooling for shell welding of the tail gas purification device according to claim 2, characterized in that, The length of each of the first carrier rollers is greater than the length of the sub - shell; the length of the first pressing roller is equal to the length of the first carrier roller.

5. The shell welding auxiliary tooling for the tail gas purification device according to claim 1, characterized in that The second mounting seat includes: A second sliding bottom plate slidably connected to the two rails; Two second carrier rollers, both of the second carrier rollers are rotatably arranged on the second sliding bottom plate, and the rotation axes of each of the second carrier rollers are arranged along the length direction of the rails; the two second carrier rollers are spaced along the interval direction of the two rails; A second lifting frame, with the bottom end fixedly arranged on the second sliding bottom plate and the top end extending upward; A second telescopic structure fixedly arranged at the top end of the second lifting frame; The second pressing roller is located above the two second supporting rollers and is connected to the telescopic end of the second telescopic structure, and is used for lifting and moving under the drive of the second telescopic structure; a second clamping space for clamping and rotating the sub-shell is formed between the second pressing roller and the two second supporting rollers.

6. The auxiliary tooling for shell welding of the tail gas purification device according to claim 5, characterized in that The adjusting assembly includes an adjusting screw rod, the adjusting screw rod is arranged along the length direction of the guide rail, the adjusting screw rod is in spiral fit connection with a threaded hole provided on the base, one end of the adjusting screw rod passes through the threaded hole and is rotatably connected to an adapter block provided on the second sliding bottom plate, and a hand wheel is arranged on the end of the adjusting screw rod outside the base.

7. The auxiliary tooling for housing welding of the tail gas purification device according to claim 5, characterized in that, The length of each of the second supporting rollers is greater than the length of the sub-shell; the length of the second pressing roller is equal to the length of the second supporting rollers.

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