Tube plate welding device

Abstract

The utility model relates to a tube plate welding device which is applied to the field of welding and comprises a support, a fixing sleeve is rotationally connected to the support, a jig unit used for limiting the inner edge of a tube body is arranged on the fixing sleeve, a driving unit used for driving the fixing sleeve to rotate is arranged on the support, and a welding gun is arranged on the support. The welding end of the welding gun faces the pipe body and corresponds to the welding position of the pipe body. The welding device has the technical effects that the inner edge of the pipe body is limited through the jig unit, so that the pipe body is fixed, the possibility that the pipe body shakes in the welding process is reduced, then the driving unit is started to drive the fixing sleeve and the pipe body to rotate, a welding gun conveniently conducts overall welding on the circumference of the connecting position of the pipe body and the plate body, and the welding efficiency is improved. The inner edge of the pipe body is fixed through the jig unit, the possibility that an external clamp interferes with a welding gun in the related technology is reduced, and the welding quality and the welding efficiency are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of welding, in particular to a pipe plate welding device. BACKGROUND

[0002] Pipe plate welding is a connecting process for connecting a plate body and a pipe body through welding. With the continuous development of automation technology, the application of pipe plate welding is becoming more and more extensive.

[0003] In the pipe plate welding process, an operator first inserts the pipe body through the plate body, and then spot welds the outer edge of the pipe body and the plate body at the connection position, so as to realize the pre-fixing of the pipe body and the plate body. Then, the outer edge of the pre-fixed pipe body is clamped by a clamp outside the pipe body, and the clamped pipe body and plate body are rotated as a whole, so that the welding gun can weld the entire circumference of the connection position of the pipe body and the plate body.

[0004] In the above pipe plate welding process, the welding gun is likely to interfere with the clamp outside the pipe body when welding the entire circumference of the connection position of the pipe body and the plate body, resulting in low welding quality and welding efficiency. SUMMARY

[0005] In order to solve the problem that the welding gun is likely to interfere with the clamp outside the pipe body when welding the entire circumference of the connection position of the pipe body and the plate body in the related pipe plate welding technology, and to improve the welding quality and welding efficiency, the application provides a pipe plate welding device, which adopts the following technical scheme: a support is provided, a fixing sleeve is rotatably connected to the support, a jig unit for limiting the pipe body is arranged on the fixing sleeve, a driving unit for driving the fixing sleeve to rotate is arranged on the support, a welding gun is arranged on the support, and the welding end of the welding gun faces the pipe body and corresponds to the welding position of the pipe body.

[0006] In one specific implementation scheme, the jig unit comprises a lead screw penetrating through the fixing sleeve and rotatably connected to the fixing sleeve, a nut matched with the lead screw is threadedly connected to the outer edge of the lead screw, the nut is fixedly arranged on the support, one end of the lead screw is provided with a connecting rod, the outer edge of the connecting rod is provided with a first stop sleeve, one end of the fixing sleeve facing the first stop sleeve is provided with a second stop sleeve, and an elastic sleeve is arranged between the first stop sleeve and the second stop sleeve; the elastic sleeve is located at the inner edge of the pipe body, and when the first stop sleeve moves towards the second stop sleeve, the elastic sleeve is pressed against the inner wall of the pipe body under the extrusion of the first stop sleeve and the second stop sleeve.

[0007] In one specific implementation scheme, a plurality of open grooves are formed in the outer edge of the elastic sleeve.

[0008] In an embodiment, the fixing sleeve is provided with a mounting hole, the lead screw is arranged through the mounting hole and is rotationally connected with the mounting hole, a limiting groove is arranged on the hole wall of the mounting hole, and the outer edge of the lead screw is provided with a limiting ring.

[0009] In an embodiment, the outer edge of the first blocking sleeve is provided with a first inclined surface, the one end of the elastic sleeve facing the first blocking sleeve is provided with a first inclined groove matched with the first inclined surface, and the first inclined surface and the first inclined groove are in contact with each other.

[0010] In an embodiment, the outer edge of the second blocking sleeve is provided with a second inclined surface, the one end of the elastic sleeve facing the second blocking sleeve is provided with a second inclined groove matched with the second inclined surface, and the second inclined surface and the second inclined groove are in contact with each other.

[0011] In an embodiment, the driving unit comprises a driving motor arranged on the support, the output end of the driving motor is provided with a first gear, the outer edge of the fixing sleeve is provided with a second gear matched with the first gear, and the first gear and the second gear are in meshing engagement with each other.

[0012] In an embodiment, the support is provided with a mounting bracket, the welding gun is arranged on the mounting bracket, the mounting bracket is provided with a connecting hole, a mounting bolt is arranged through the connecting hole, the support is provided with a mounting groove matched with the mounting bolt, and the one end of the mounting bolt facing the mounting groove is threadedly connected in the mounting groove.

[0013] In an embodiment, the connecting hole is a waist-shaped hole.

[0014] In an embodiment, the mounting bracket is provided with an adjusting column, the adjusting column is hingedly connected with a mounting block, and the welding gun is arranged on the mounting block.

[0015] In summary, the present application has the following beneficial technical effects: the inner edge of the pipe body is limited by the jig unit, so that the pipe body is fixed, the possibility of pipe body shaking during welding is reduced, the driving unit is started, the fixing sleeve and the pipe body are driven to rotate, the welding gun is convenient for welding the circumference of the connection between the pipe body and the plate body, the pipe body is fixed by the inner edge of the pipe body, the possibility of interference between the external clamp and the welding gun in the related art is reduced, and the welding quality and the welding efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 is a cross-sectional view of a lead screw in an embodiment of the present application.

[0018] Fig. 1, support; 2, welding gun; 3, fixing sleeve; 4, lead screw; 5, nut; 6, mounting block; 7, connecting rod; 8, first blocking sleeve; 9, second blocking sleeve; 10, elastic sleeve; 11, open slot; 12, mounting hole; 13, limiting groove; 14, limiting ring; 15, first inclined surface; 16, first inclined groove; 17, second inclined surface; 18, second inclined groove; 19, driving motor; 20, mounting frame; 21, connecting hole; 22, adjusting column. DETAILED DESCRIPTION

[0019] The following will be described in detail with reference to the accompanying drawings Figures 1-2 The present application is further described in detail.

[0020] The pipe plate welding device is disclosed.

[0021] Referring to Figure 1 and Figure 2 , the pipe plate welding device comprises a support 1, a fixing sleeve 3 is rotationally connected to the support 1, a jig unit for limiting the inner edge of the pipe body is arranged on the fixing sleeve 3, a driving unit for driving the fixing sleeve 3 to rotate is arranged on the support 1, a welding gun 2 is arranged on the support 1, the welding end of the welding gun 2 faces the pipe body, and the welding end of the welding gun 2 corresponds to the welding position of the connection between the pipe body and the plate body. Therefore, through the jig unit, the inner edge of the pipe body is limited, so that the pipe body is fixed, the possibility of pipe body shaking during welding is reduced, then the driving unit is started to drive the fixing sleeve 3 and the pipe body to rotate, which is convenient for the welding gun 2 to weld the circumference of the connection between the pipe body and the plate body as a whole, and the welding quality and welding efficiency are improved.

[0022] Referring to Figure 1 and Figure 2 , the jig unit comprises a lead screw 4 penetrating through the fixing sleeve 3 and rotationally connected with the fixing sleeve 3, a nut 5 matched in size with the lead screw 4 is threadedly connected to the outer edge of the lead screw 4, the nut 5 is fixedly arranged on the support 1, and the position of the nut 5 is fixed by the support 1. One end of the lead screw 4 is threadedly connected with a connecting rod 7, the outer edge of the connecting rod 7 is provided with a first blocking sleeve 8, one end of the fixing sleeve 3 towards the first blocking sleeve 8 is sleeved with a second blocking sleeve 9, an elastic sleeve 10 is arranged between the first blocking sleeve 8 and the second blocking sleeve 9, a plurality of open slots 11 are arranged on the outer edge of the elastic sleeve 10, the plurality of open slots 11 are uniformly distributed along the outer edge of the elastic sleeve, the open slots 11 enable the elastic sheet to better disperse stress when stressed, avoid damage caused by stress concentration, and further realize the bending of the elastic sleeve 10. In addition, by adjusting the size and shape of the open slots 11, the performance of the elastic sheet can also be fine-tuned.

[0023] Therefore, when the connection between the pre-fixed tube body and the plate body needs to be welded as a whole, the fixing sleeve 3 is partially inserted into the tube body, and the elastic sleeve 10 is located at the inner edge of the tube body. The operator rotates the lead screw 4, and since the nut 5 is fixed on the support 1, the lead screw 4 will move up and down in the vertical direction. When the first stop sleeve 8 is moved towards the second stop sleeve 9 by the lead screw 4, the elastic sleeve 10 is deformed under the extrusion of the first stop sleeve 8 and the second stop sleeve 9, that is, the elastic sleeve 10 is tightly pressed against the inner wall of the tube body, thereby fixing the tube body and reducing the possibility of tube body shaking during welding.

[0024] With reference to Figure 1 and Figure 2 , the outer edge of the first stop sleeve 8 is provided with a first annular slope 15, and the end of the elastic sleeve 10 towards the first stop sleeve 8 is provided with a first inclined groove 16 matching the size of the first slope 15, and the first slope 15 and the first inclined groove 16 are in contact with each other. The outer edge of the second stop sleeve 9 is provided with a second annular slope 17, and the end of the elastic sleeve 10 towards the second stop sleeve 9 is provided with a second inclined groove 18 matching the size of the second slope 17, and the second slope 17 and the second inclined groove 18 are in contact with each other. Therefore, when the first stop sleeve 8 contacts the elastic sleeve 10, the first inclined groove 16 guides the first slope 15, allowing the first slope 15 of the first stop sleeve 8 to smoothly insert into the first inclined groove 16 of the elastic sleeve 10, facilitating the determination of the relative position of the first stop sleeve 8 and the elastic sleeve 10; when the elastic sleeve 10 contacts the second stop sleeve 9, the second inclined groove 18 guides the second slope 17, allowing the second slope 17 of the second stop sleeve 9 to smoothly insert into the second inclined groove 18 of the elastic sleeve 10, facilitating the determination of the relative position of the second stop sleeve 9 and the elastic sleeve 10.

[0025] With reference to Figure 1 and Figure 2 , the fixing sleeve 3 is provided with a mounting hole 12, the lead screw 4 passes through the mounting hole 12 and is rotationally connected with the mounting hole 12, a limiting groove 13 is formed on the hole wall of the mounting hole 12, and the outer edge of the lead screw 4 is fixedly connected with a limiting ring 14 matching the size of the limiting groove 13. Therefore, when the lead screw 4 rises to a certain height, the limiting ring 14 will contact the groove bottom of the limiting groove 13, and the limiting groove 13 limits the position of the limiting ring 14, thereby preventing continuous rising and controlling the lifting stroke of the lead screw 4, reducing the possibility of the lead screw 4 disengaging from the fixing sleeve 3.

[0026] With reference to Figure 1 and Figure 2The driving unit comprises a driving motor 19 arranged on the support 1, the output end of the driving motor 19 is provided with a first gear, the outer edge of the fixing sleeve 3 is provided with a second gear matched with the size of the first gear, and the first gear and the second gear are meshed with each other. Therefore, the driving motor 19 is started to drive the first gear at the output end of the driving motor 19 to rotate, and since the first gear and the second gear are meshed with each other, the first gear drives the second gear and the fixing sleeve 3 to rotate synchronously, so that the pipe body is rotated, the welding gun 2 is facilitated to perform overall welding on the circumference of the connection between the pipe body and the plate body, and the welding quality and the welding efficiency are improved.

[0027] With reference to Figure 1 and Figure 2 The support 1 is connected with a mounting rack 20, the welding gun 2 is arranged on the mounting rack 20, the mounting rack 20 is provided with a connecting hole 21, the connecting hole 21 is a waist-shaped hole, a mounting bolt is arranged in the connecting hole 21, the support 1 is provided with a mounting groove matched with the size of the mounting bolt, and the end of the mounting bolt towards the mounting groove is threadedly connected in the mounting groove. The mounting rack 20 can be disassembled from the support 1 by the bolt disassembly mode by the operator, the detachable connection of the welding gun 2 is realized, and the flexibility is higher. The mounting rack 20 is provided with an adjusting column 22, the adjusting column 22 is hingedly connected with a mounting block 6, the adjusting column 22 and the mounting block 6 are hingedly connected in a damping hinged mode in the embodiment of the application, and the welding gun 2 is arranged on the mounting block 6. The angle of the welding gun 2 on the adjusting column 22 is adjusted through the hinge connection of the adjusting column 22 and the mounting block 6, the flexibility is higher, different welding angles can be coped with at the same time, the welding quality and the welding efficiency are further improved.

[0028] The implementation principle of the embodiment of the application is that when the connection between the pre-fixed pipe body and the plate body needs to be overall welded, the fixing sleeve 3 is partially inserted into the pipe body, the elastic sleeve 10 is located at the inner edge of the pipe body, the operator rotates the lead screw 4, the position of the nut 5 is fixed on the support 1, so the lead screw 4 will ascend and descend along the vertical direction, when the first blocking sleeve 8 is moved towards the second blocking sleeve 9 by the lead screw 4, the elastic sleeve 10 is deformed under the extrusion of the first blocking sleeve 8 and the second blocking sleeve 9, that is, the elastic sleeve 10 is tightly pressed against the inner wall of the pipe body, so that the pipe body is fixed, and the possibility of pipe body shaking in the welding process is reduced. The driving motor 19 is started to drive the first gear at the output end of the driving motor 19 to rotate, and since the first gear and the second gear are meshed with each other, the first gear drives the second gear and the fixing sleeve 3 to rotate synchronously, so that the pipe body is rotated, the welding gun 2 is facilitated to perform overall welding on the circumference of the connection between the pipe body and the plate body, the inner edge of the pipe body is fixed by the jig unit, the possibility of interference between the external clamp and the welding gun 2 in the related art is reduced, and the welding quality and the welding efficiency are improved.

[0029] The embodiments are only used to explain the present application, and are not used to limit the present application, and any modification without creative contribution made by the person skilled in the art according to the embodiments after reading the specification is protected by the patent law as long as it is within the scope of the claims of the present application.

Claims

1. A tube sheet welding apparatus, characterized by: The utility model provides a welding device for pipe body, including support (1), the support (1) is rotatably connected with fixed sleeve (3), the fixed sleeve (3) is equipped with the fixture unit for the inside edge of pipe body limit, the support (1) is equipped with the drive unit for driving fixed sleeve (3) rotation, welding torch (2) sets up on the support (1), and the welding end of welding torch (2) is towards the pipe body and corresponds with the welding position of pipe body; The fixture unit includes a lead screw (4) that passes through the fixed sleeve (3) and is rotatably connected with the fixed sleeve (3), the outer edge of the lead screw (4) is threadedly connected with a nut (5) matched with the lead screw (4), the nut (5) is fixedly arranged on the support (1), one end of the lead screw (4) is provided with a connecting rod (7), the outer edge of the connecting rod (7) is provided with a first blocking sleeve (8), one end of the fixed sleeve (3) towards the first blocking sleeve (8) is provided with a second blocking sleeve (9), and the first blocking sleeve (8) and the second blocking sleeve (9) are provided with an elastic sleeve (10) therebetween; the elastic sleeve (10) is located at the inner edge of the pipe body, and when the first blocking sleeve (8) moves towards the second blocking sleeve (9), the elastic sleeve (10) is tightly pressed against the inner wall of the pipe body under the extrusion of the first blocking sleeve (8) and the second blocking sleeve (9).

2. The tube sheet welding apparatus of claim 1, wherein: The outer edge of the elastic sleeve (10) is provided with a plurality of open grooves (11).

3. The tube sheet welding apparatus of claim 1, wherein: The fixed sleeve (3) is provided with a mounting hole (12), the lead screw (4) passes through the mounting hole (12) and is rotatably connected with the mounting hole (12), the hole wall of the mounting hole (12) is provided with a limiting groove (13), and the outer edge of the lead screw (4) is provided with a limiting ring (14).

4. The tube sheet welding apparatus of claim 1, wherein: The outer edge of the first blocking sleeve (8) is provided with a first inclined surface (15), one end of the elastic sleeve (10) towards the first blocking sleeve (8) is provided with a first inclined groove (16) matched with the first inclined surface (15), and the first inclined surface (15) and the first inclined groove (16) are in contact with each other.

5. The tube sheet welding apparatus of claim 1, wherein: The outer edge of the second blocking sleeve (9) is provided with a second inclined surface (17), one end of the elastic sleeve (10) towards the second blocking sleeve (9) is provided with a second inclined groove (18) matched with the second inclined surface (17), and the second inclined surface (17) and the second inclined groove (18) are in contact with each other.

6. The tube sheet welding apparatus of claim 1, wherein: The drive unit includes a drive motor (19) arranged on the support (1), the output end of the drive motor (19) is provided with a first gear, the outer edge of the fixed sleeve (3) is provided with a second gear matched with the first gear, and the first gear and the second gear are in meshing engagement.

7. The tube sheet welding apparatus of claim 6, wherein: The support (1) is provided with a mounting bracket (20), the welding torch (2) is arranged on the mounting bracket (20), the mounting bracket (20) is provided with a connecting hole (21), a mounting bolt is arranged in the connecting hole (21), the support (1) is provided with a mounting groove matched with the mounting bolt, and one end of the mounting bolt towards the mounting groove is threadedly connected in the mounting groove.

8. The tube sheet welding apparatus of claim 7, wherein: The connecting hole (21) is a waist-shaped hole.

9. The tube sheet welding apparatus of claim 8, wherein: The mounting bracket (20) is provided with an adjusting column (22), the adjusting column (22) is hingedly connected with a mounting block (6), and the welding torch (2) is arranged on the mounting block (6).

Images