Bent pipe welding device for metal product machining

Abstract

The invention relates to the technical field of elbow welding equipment, and discloses an elbow welding device for metal product machining, which comprises a welding table, a mounting space is arranged right above the welding table, a plurality of supporting legs are fixedly connected to the bottom of the welding table, a welding frame is fixedly connected to the top of the welding table, and an auxiliary telescopic rod I is fixedly connected to the top of the welding frame; the bottom of the first auxiliary telescopic rod is fixedly connected with a welding gun. According to the automobile exhaust elbow fixing device, the counter-acting force of a pressure spring on a first clamping arc piece is increased, the extrusion force of the first clamping arc piece on the side wall of an automobile exhaust elbow is increased, and at the moment, the fixing effect of the first clamping arc piece on the automobile exhaust elbow is better; due to the fact that the side wall of the automobile exhaust bent pipe is in the bent state, when the first clamping arc piece extrudes along the automobile exhaust bent pipe, the second clamping arc piece can rotate along the side wall of the bent pipe, the second clamping arc piece can be tightly attached to the side wall of the bent pipe, and through the arrangement, the bent pipes of different shapes can be conveniently clamped by the clamping piece.

Description

Technical Field

[0001] The invention relates to the technical field of elbow welding equipment, in particular to an elbow welding device for metal product processing. Background Art

[0002] Metal pipes are pipes made of metal. Due to the characteristics of pipes, a large number of bends are needed in pipes. At present, there are many forming methods for metal bends, including groove wheel rolling method, induction heating bending method, model bending method, step-by-step forming method, CNC pipe bending method and welding forming method. Among them, welding forming method is also the more common forming method.

[0003] The existing pipe bending welding device can basically meet people's usage requirements. Before pipe bending welding, pipe bending of different shapes needs to be fixed. Most of the existing fixing devices before pipe bending welding can only be used to fix pipe bending of a certain shape. For welding and fixing of pipe bending of different bending degrees, it is often necessary to replace multiple special fixing devices. Therefore, the universal performance of the welding device under the existing device is poor. Summary of the Invention

[0004] The object of the present invention is to provide a pipe bending welding device for processing metal products to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a pipe bending welding device for processing metal products, comprising a welding table, an installation space being provided directly above the welding table, a plurality of support legs being fixedly connected to the bottom of the welding table, a welding frame being fixedly connected to the top of the welding frame, an auxiliary telescopic rod being fixedly connected to the top of the welding frame, and a welding gun being fixedly connected to the bottom of the auxiliary telescopic rod, and further comprising:

[0007] An installation fixture portion is installed directly above the welding table. Two automobile exhaust elbows to be welded are installed directly above the installation fixture portion. The installation fixture portion is used to fix the two automobile exhaust elbows to be welded; and

[0008] The rotating part is installed at the bottom of the welding table and is used to drive several automobile exhaust elbows on the mounting fixture part to rotate synchronously;

[0009] The rotating part drives the plurality of automobile exhaust elbows on the mounting fixture part to rotate and simultaneously drives the welding ends of the plurality of automobile exhaust elbows to be close to each other, thereby ensuring the stability of welding.

[0010] Furthermore, the mounting fixture portion includes:

[0011] Adjustment piece, which is installed inside the installation space above the welding table and is used to install the automobile exhaust elbow;

[0012] A clamping piece is installed on the top of the adjusting piece, and the adjusting piece is used to fix and clamp the automobile exhaust elbow;

[0013] The auxiliary part is installed just above the adjusting part. The auxiliary part assists the clamping part in clamping the side wall of the automobile exhaust elbow. The auxiliary part adjusts the clamping angle of the clamping part according to the shape of the elbow.

[0014] The adjusting member adjusts the positions of the clamping member and the auxiliary member according to the size of the automobile exhaust elbow.

[0015] Furthermore, the adjusting part includes a rotating platform arranged directly above the welding table, and the bottom of the rotating platform is fixedly and rotatably connected to several adjusting screws, and the adjusting screws are rotatably connected to a clamping rod. The bottom of the rotating platform is fixedly connected to a limiting rod, and the clamping rod is slidably connected to the limiting rod.

[0016] Furthermore, the clamping member includes an electric push rod fixedly connected to both ends of the clamping rod, and one end of the electric push rod away from the clamping rod is fixedly connected to the auxiliary telescopic rod 2;

[0017] Among them, the end of the auxiliary telescopic rod 2 away from the electric push rod is fixedly connected to the clamping arc piece 1, and the side of the clamping arc piece 1 away from the auxiliary telescopic rod 2 is designed as an arc surface, and the arc surface of the clamping arc piece 1 is consistent with the side wall of the automobile exhaust elbow.

[0018] Furthermore, the clamping member also includes a clamping arc piece 2 rotatably connected to the two ends of the clamping arc piece 1, and a pressure spring is sleeved on one end of the auxiliary telescopic rod 2 close to the clamping arc piece 1.

[0019] Furthermore, the auxiliary part includes an auxiliary rod rotatably connected to the end of the clamping arc piece 2 away from the clamping arc piece 1, the side wall of the auxiliary telescopic rod 2 is fixedly connected to a plurality of sliding rods, the middle part of the sliding rod is slidably connected to a sliding block, and both ends of the sliding rod are provided with extrusion springs.

[0020] Furthermore, the rotating part includes:

[0021] A synchronizer is installed at the bottom of the welding table, one end of which is fixedly connected to one end of the rotating platform, and is used to drive the mounting fixture to rotate;

[0022] The pressing piece is installed at the left end of the welding table. The pressing piece drives the automobile exhaust elbow pipe close to the synchronizer end to be squeezed toward the automobile exhaust elbow pipe away from the synchronizer end through the rotation of the synchronizer, thereby increasing the extrusion force between the welding ends of the two automobile exhaust elbow pipes.

[0023] Furthermore, the synchronization member includes a drive motor fixedly connected to one side of the right end of the welding table, the output end of the drive motor is fixedly connected to one end of the rotating platform, the output end of the drive motor is connected to a transmission belt, and the middle part of the support leg rotates through a rotating shaft;

[0024] Among them, the end of transmission belt 1 away from the driving motor is connected to the rotating shaft, the end of the rotating shaft away from transmission belt 1 is connected to transmission belt 2, and a synchronous rotating shaft rotates through the side of the welding table close to transmission belt 2, and transmission belt 2 is connected to the synchronous rotating shaft.

[0025] Furthermore, the pressing member includes a limiting groove provided on one end of the synchronous rotating shaft close to the rotating platform, and the rotating platform is slidably connected to the inner portion of the limiting groove on the synchronous rotating shaft;

[0026] Among them, a return spring is sleeved on one end of the synchronous rotating shaft close to the rotating platform, and a push spring is sleeved on one end of the synchronous rotating shaft away from the return spring.

[0027] Furthermore, the pressing member further includes a sliding sleeve slidably connected to the synchronous rotating shaft, the side wall of the welding table is fixedly connected to a limit frame, the limit frame is provided with a plurality of sliding grooves, and the sliding sleeve is slidably connected to the inside of the sliding groove at one end of the limit frame;

[0028] An extrusion groove is provided in the middle of the synchronous rotating shaft, and a sliding column is fixedly connected to the inner wall of the sliding sleeve, and the sliding column is slidably connected inside the extrusion groove.

[0029] The present invention has the following beneficial effects:

[0030] (1) The present invention provides a clamping piece. When the automobile exhaust bend pipe needs to be fixed before welding, the electric push rod drives the clamping arc piece 1 at one end of the auxiliary telescopic rod 2 to move toward the side wall of the automobile exhaust bend pipe. When the clamping arc piece 1 is squeezed against the outer wall of the automobile exhaust bend pipe, the clamping arc piece 1 drives the auxiliary telescopic rod 2 to contract and causes the pressure spring to contract. At this time, the reaction force of the pressure spring on the clamping arc piece 1 increases, and the squeezing force of the clamping arc piece 1 on the side wall of the automobile exhaust bend pipe increases. At this time, the fixing effect of the clamping arc piece 1 on the automobile exhaust bend pipe is better. Since the side wall of the automobile exhaust bend pipe is in a curved state, when the clamping arc piece 1 is squeezed along the automobile exhaust bend pipe, the clamping arc piece 2 will rotate along the side wall of the bend pipe, so that the clamping arc piece 2 is close to the side wall of the bend pipe. This arrangement is conducive to the clamping piece clamping bends of different shapes.

[0031] (2) According to the present invention, when the elbow welding device for processing metal products is used, the automobile exhaust elbow to be welded is first placed on the rotating platform on the top of the welding table. At this time, the adjusting screw is adjusted and rotated according to the size of the automobile exhaust elbow. The rotation of the adjusting screw drives the clamping part and the auxiliary part connected to the clamping rod on the adjusting screw to move to the fixed position of the automobile exhaust elbow. This arrangement is conducive to adjusting the position of the clamping part and the auxiliary part to fix the automobile exhaust elbow, so that it is suitable for welding automobile exhaust elbows of different lengths.

[0032] (3) The present invention provides a rotating part. When the welding gun welds the automobile exhaust bend pipe, the output end of the driving motor rotates to drive the automobile exhaust bend pipe on the rotating platform to rotate. The transmission belt 1 drives the transmission belt 2 at one end of the rotating shaft to rotate. The transmission belt 2 drives the automobile exhaust bend pipe on the rotating platform at one end of the synchronous rotating shaft and the automobile exhaust bend pipe on the rotating platform at one end of the driving motor to rotate synchronously, thereby ensuring that no relative displacement occurs between the automobile exhaust bend pipes to be welded, thereby ensuring the quality of welding.

[0033] (4) The present invention provides a pressing member. When the synchronous member drives the synchronous shaft to rotate, the sliding column on the inner wall of the sliding sleeve on the pressing member is squeezed along the extrusion groove. At this time, under the extrusion action of the extrusion groove, the sliding sleeve slides along the sliding groove on the limit frame toward one end of the push spring. This arrangement is conducive to the sliding sleeve compressing the push spring, so that the push spring increases the extrusion force of the rotating platform slidably connected to the synchronous shaft. This arrangement is conducive to increasing the extrusion force between the two automobile exhaust elbow welding ends, thereby ensuring the stable welding of the automobile exhaust elbow by the device.

[0034] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 This is a schematic diagram of the overall top view of the structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall bottom-up structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the overall structure of the mounting fixture portion of the present invention;

[0039] Figure 4This is a schematic diagram of the structure of the clamping member of the present invention;

[0040] Figure 5 For the present invention Figure 4 A magnified view of middle A;

[0041] Figure 6 This is a schematic diagram of the structure of the synchronizer of the present invention;

[0042] Figure 7 This is a schematic structural diagram of the pressing member of the present invention;

[0043] Figure 8 For the present invention Figure 7 Magnified view of B.

[0044] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0045] In the figure: 1. Welding table; 11. Support legs; 12. Welding frame; 13. Auxiliary telescopic rod 1; 14. Welding gun; 2. Mounting fixture; 21. Adjustment member; 211. Rotating platform; 212. Adjustment screw; 213. Clamping rod; 214. Limiting rod; 22. Clamping member; 221. Electric push rod; 222. Auxiliary telescopic rod 2; 223. Clamping arc piece 1; 224. Clamping arc piece 2; 225. Pressure spring; 23. Auxiliary parts; 231 , auxiliary rod; 232, sliding rod; 233, extrusion spring; 234, sliding block; 3, rotating part; 31, synchronous part; 311, driving motor; 312, transmission belt 1; 313, rotating shaft; 314, transmission belt 2; 315, synchronous rotating shaft; 32, pressing part; 321, limiting groove; 322, reset spring; 323, pushing spring; 324, sliding sleeve; 325, limiting frame; 326, extrusion groove; 327, sliding column. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] Example 1, please refer to Figure 1-Figure 5 As shown, the present invention is a pipe bending welding device for processing metal products, comprising a welding platform 1, an installation space being provided directly above the welding platform 1, a plurality of support legs 11 being fixedly connected to the bottom of the welding platform 1, a welding frame 12 being fixedly connected to the top of the welding frame 12, an auxiliary telescopic rod 13 being fixedly connected to the top of the auxiliary telescopic rod 13, a welding gun 14 being fixedly connected to the bottom of the auxiliary telescopic rod 13, and further comprising:

[0048] A mounting fixture 2 is installed directly above the welding table 1. Two automobile exhaust elbows to be welded are installed directly above the mounting fixture 2. The mounting fixture 2 is used to fix the two automobile exhaust elbows to be welded; and

[0049] The rotating part 3 is installed at the bottom of the welding table 1 and is used to drive the multiple automobile exhaust elbows installed on the fixture part 2 to rotate synchronously;

[0050] The rotating part 3 drives the plurality of automobile exhaust elbows on the mounting fixture part 2 to rotate and simultaneously drives the welding ends of the plurality of automobile exhaust elbows to be close to each other, thereby ensuring the stability of welding.

[0051] The mounting fixture part 2 includes:

[0052] Adjustment member 21, which is installed inside the installation space above the welding table 1 and is used to install the automobile exhaust elbow;

[0053] The clamping member 22 is mounted on the top of the adjusting member 21, and the adjusting member 21 is used to fix and clamp the automobile exhaust elbow;

[0054] Auxiliary member 23, the auxiliary member 23 is installed just above the adjusting member 21, and the auxiliary member 23 assists the clamping member 22 in clamping the side wall of the automobile exhaust elbow. The auxiliary member 23 adjusts the clamping angle of the clamping member 22 according to the shape of the elbow;

[0055] The adjusting member 21 adjusts the positions of the clamping member 22 and the auxiliary member 23 according to the size of the exhaust elbow of the automobile.

[0056] The adjusting member 21 includes a rotating platform 211 arranged directly above the welding table 1, and a plurality of adjusting screw rods 212 are fixedly and rotatably connected to the bottom of the rotating platform 211, and a clamping rod 213 is rotatably connected to the adjusting screw rod 212. The bottom of the rotating platform 211 is fixedly connected to a limit rod 214, and the clamping rod 213 is slidably connected to the limit rod 214. The function of this component is that when the elbow welding device for processing metal products is used, the automobile exhaust elbow to be welded is first placed on the rotating platform 211 on the top of the welding table 1. At this time, the rotating adjusting screw rod 212 is adjusted according to the size of the automobile exhaust elbow. The rotation of the adjusting screw rod 212 drives the clamping member 22 and the auxiliary member 23 on the clamping rod 213 connected to the adjusting screw rod 212 to move to the fixed position of the automobile exhaust elbow. This arrangement is conducive to adjusting the position of the automobile exhaust elbow by fixing the clamping member 22 and the auxiliary member 23, so that it is suitable for welding automobile exhaust elbows of different lengths.

[0057] The clamping member 22 includes an electric push rod 221 fixedly connected to both ends of the clamping rod 213, and an auxiliary telescopic rod 222 is fixedly connected to one end of the electric push rod 221 away from the clamping rod 213;

[0058] Among them, the end of the auxiliary telescopic rod 222 away from the electric push rod 221 is fixedly connected to the clamping arc piece 1 223, and the side of the clamping arc piece 1 223 away from the auxiliary telescopic rod 222 is designed as an arc surface, and the arc surface on one side of the clamping arc piece 1 223 coincides with the side wall of the automobile exhaust elbow.

[0059] The clamping member 22 further includes a second clamping arc piece 224 rotatably connected to both ends of the first clamping arc piece 223 , and a pressure spring 225 is sleeved on one end of the auxiliary telescopic rod 222 close to the first clamping arc piece 223 .

[0060] The auxiliary part 23 includes an auxiliary rod 231 which is rotatably connected to the clamping arc piece 224 away from one end of the clamping arc piece 1 223. The side wall of the auxiliary telescopic rod 222 is fixedly connected to a plurality of sliding rods 232. The middle part of the sliding rod 232 is slidably connected to a sliding block 234. Both ends of the sliding rod 232 are sleeved with an extrusion spring 233. The function of this component is to set the clamping part 22. When the automobile exhaust elbow needs to be fixed before welding, the electric push rod 221 drives the clamping arc piece 1 223 at one end of the auxiliary telescopic rod 222 to move toward the side wall of the automobile exhaust elbow. When the clamping arc piece 1 223 is squeezed with the outer wall of the automobile exhaust elbow, the clamping arc piece 1 223 drives the auxiliary telescopic rod 222 to contract and causes the pressure spring 225 to contract. At this time, the reaction force of the pressure spring 225 on the clamping arc piece 1 223 increases, and the clamping arc The squeezing force of the first piece 223 on the side wall of the automobile exhaust elbow pipe increases, and the fixing effect of the clamping arc piece 1 223 on the automobile exhaust elbow pipe is better at this time; since the side wall of the automobile exhaust elbow pipe is in a curved state, when the clamping arc piece 1 223 is squeezed along the automobile exhaust elbow pipe, the clamping arc piece 224 will rotate along the side wall of the elbow pipe, so that the clamping arc piece 224 is close to the side wall of the elbow pipe, and this arrangement is conducive to the clamping member 22 to clamp elbows of different shapes; when the clamping arc piece 224 rotates, the clamping arc piece 224 drives the sliding block 234 at one end of the auxiliary rod 231 to squeeze the squeezing spring 233 along the slide rod 232. At this time, the squeezing spring 233 on the slide rod 232 increases the reaction force of the clamping arc piece 224 at one end of the auxiliary rod 231, thereby assisting the clamping arc piece 224 to be close to the side wall of the automobile exhaust elbow pipe.

[0061] Example 2 is distinguished from Example 1 in that: Figures 1-8 As shown, the rotating part 3 includes:

[0062] Synchronous member 31, which is installed at the bottom of welding table 1, and one end of which is fixedly connected to one end of rotating platform 211, and is used to drive the mounting fixture part 2 to rotate;

[0063] The pressing piece 32 is installed at the left end of the welding table 1. The pressing piece 32 drives the automobile exhaust elbow pipe close to the synchronizer 31 to be squeezed toward the automobile exhaust elbow pipe away from the synchronizer 31 by cooperating with the rotation of the synchronizer 31, thereby increasing the extrusion force between the welding ends of the two automobile exhaust elbow pipes.

[0064] The synchronizer 31 includes a drive motor 311 fixedly connected to one side of the right end of the welding table 1. The output end of the drive motor 311 is fixedly connected to one end of the rotating platform 211. The output end of the drive motor 311 is connected to a transmission belt 1 312. The middle part of the support leg 11 is rotated through a rotating shaft 313.

[0065] Among them, the end of the transmission belt 1 312 away from the driving motor 311 is connected to the rotating shaft 313 for transmission, and the end of the rotating shaft 313 away from the transmission belt 1 312 is connected to the transmission belt 2 314 for transmission. The side of the welding platform 1 close to the transmission belt 2 314 rotates and passes through a synchronous rotating shaft 315, and the transmission belt 2 314 is connected to the synchronous rotating shaft 315 for transmission. The function of this component is to set the rotating part 3. When the welding gun 14 welds the automobile exhaust elbow pipe, the output end of the driving motor 311 rotates to drive the automobile exhaust elbow pipe on the rotating platform 211 to rotate, and the transmission belt 1 312 drives the transmission belt 2 314 at one end of the rotating shaft 313 to rotate, and the transmission belt 2 314 drives the automobile exhaust elbow pipe on the rotating platform 211 at one end of the synchronous rotating shaft 315 and the automobile exhaust elbow pipe on the rotating platform 211 at one end of the driving motor 311 to rotate synchronously, thereby ensuring that there is no relative displacement between the automobile exhaust elbow pipes to be welded, thereby ensuring the quality of welding.

[0066] The pressing member 32 includes a limiting groove 321 formed on one end of the synchronous rotating shaft 315 close to the rotating platform 211. The rotating platform 211 is slidably connected to the limiting groove 321 on the synchronous rotating shaft 315.

[0067] The end of the synchronous shaft 315 close to the rotating platform 211 is sleeved with a return spring 322 , and the end of the synchronous shaft 315 away from the return spring 322 is sleeved with a push spring 323 .

[0068] The pressing member 32 further includes a sliding sleeve 324 slidably connected to the synchronous rotating shaft 315. The side wall of the welding table 1 is fixedly connected to a limit frame 325. The limit frame 325 has a plurality of sliding grooves. The sliding sleeve 324 is slidably connected to the inner groove of one end of the limit frame 325.

[0069] The cam 328 is pressed against the locking cam 329 to lock the locking cam 329, so that the cam 328 can be locked to the locking cam 329. When the cam 328 is unlocked, the cam 328 is unlocked and the lock cam 329 is unlocked.

[0070] A specific application of this embodiment is:

[0071] When the elbow welding device for processing metal products is used, the automobile exhaust elbow to be welded is first placed on the rotating platform 211 on the top of the welding table 1. At this time, the adjusting screw 212 is adjusted and rotated according to the size of the automobile exhaust elbow. The adjusting screw 212 rotates and drives the clamping piece 22 and the auxiliary piece 23 on the clamping rod 213 connected to the adjusting screw 212 to move to the fixed position of the automobile exhaust elbow. This arrangement is conducive to adjusting the position of the clamping piece 22 and the auxiliary piece 23 to fix the automobile exhaust elbow, so that it is suitable for welding automobile exhaust elbows of different lengths; by setting the clamping piece 22, when the automobile exhaust elbow needs to be fixed before welding, the electric push rod 221 drives the clamping arc piece 1 223 at one end of the auxiliary telescopic rod 222 to move toward the side wall of the automobile exhaust elbow. When the clamping arc piece 1 223 is squeezed with the outer wall of the automobile exhaust elbow, the clamping arc piece 1 223 drives the auxiliary telescopic rod 222 to contract and makes the pressure spring The spring 225 contracts, and the reaction force of the pressure spring 225 on the clamping arc piece 1 223 increases, and the squeezing force of the clamping arc piece 1 223 on the side wall of the automobile exhaust elbow increases. At this time, the clamping arc piece 1 223 has a better fixing effect on the automobile exhaust elbow. Since the side wall of the automobile exhaust elbow is in a curved state, when the clamping arc piece 1 223 is squeezed along the automobile exhaust elbow, the clamping arc piece 224 will rotate along the side wall of the elbow, so that the clamping arc piece 224 The second clamping arc piece 224 is arranged to be close to the side wall of the elbow, which is conducive to clamping elbows of different shapes. When the second clamping arc piece 224 rotates, the second clamping arc piece 224 drives the sliding block 234 at one end of the auxiliary rod 231 to squeeze the squeezing spring 233 along the slide rod 232. At this time, the squeezing spring 233 on the slide rod 232 increases the reaction force of the second clamping arc piece 224 at one end of the auxiliary rod 231, thereby assisting the second clamping arc piece 224 to be close to the side wall of the automobile exhaust elbow.

[0072] By setting the rotating part 3, when the welding gun 14 welds the automobile exhaust elbow, the output end of the driving motor 311 rotates to drive the automobile exhaust elbow on the rotating platform 211 to rotate, and the transmission belt 1 312 drives the transmission belt 2 314 at one end of the rotating shaft 313 to rotate, and the transmission belt 2 314 drives the automobile exhaust elbow on the rotating platform 211 at one end of the synchronous rotating shaft 315 and the automobile exhaust elbow on the rotating platform 211 at one end of the driving motor 311 to rotate synchronously, thereby ensuring that there is no relative displacement between the automobile exhaust elbows to be welded, thereby ensuring the quality of welding; by setting the pressing member 32, the synchronous member When the synchronous rotating shaft 31 is driven by 31 to rotate, the sliding column 327 on the inner wall of the sliding sleeve 324 on the pressing member 32 is squeezed along the extrusion groove 326. At this time, under the extrusion action of the extrusion groove 326, the sliding sleeve 324 slides along the sliding groove on the limiting frame 325 toward one end of the pushing spring 323. This arrangement is conducive to the sliding sleeve 324 compressing the pushing spring 323, so that the pushing spring 323 increases the extrusion force of the rotating platform 211 slidably connected to the synchronous rotating shaft 315. This arrangement is conducive to increasing the extrusion force between the two automobile exhaust elbow welding ends, thereby ensuring the stable welding of the automobile exhaust elbow by the device.

[0073] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pipe bending welding device for processing metal products, comprising a welding table (1), wherein an installation space is provided directly above the welding table (1), a plurality of supporting legs (11) are fixedly connected to the bottom of the welding table (1), a welding frame (12) is fixedly connected to the top of the welding frame (12), an auxiliary telescopic rod (13) is fixedly connected to the top of the auxiliary telescopic rod (13), and a welding gun (14) is fixedly connected to the bottom of the auxiliary telescopic rod (13), characterized in that: Also includes: A mounting fixture part (2), the mounting fixture part (2) is mounted directly above the welding table (1), two automobile exhaust elbows to be welded are mounted directly above the mounting fixture part (2), and the mounting fixture part (2) is used to fix the two automobile exhaust elbows to be welded; and A rotating part (3), the rotating part (3) is installed at the bottom of the welding table (1), and the rotating part (3) is used to drive a plurality of automobile exhaust elbows on the mounting fixture part (2) to rotate synchronously; The rotating part (3) drives the plurality of automobile exhaust elbows on the mounting fixture part (2) to rotate and simultaneously drives the welding ends of the plurality of automobile exhaust elbows to be in close contact with each other, thereby ensuring the stability of welding.

2. The elbow welding device for metal product processing according to claim 1, characterized in that: The mounting fixture portion (2) comprises: An adjusting member (21), the adjusting member (21) being installed inside the installation space above the welding table (1), and the adjusting member (21) being used for installing an automobile exhaust elbow; A clamping member (22), the clamping member (22) is mounted on the top of the adjusting member (21), and the adjusting member (21) is used to fix and clamp the automobile exhaust elbow; An auxiliary member (23) is installed just above the adjusting member (21), and the auxiliary member (23) assists the clamping member (22) in clamping the side wall of the automobile exhaust elbow. The auxiliary member (23) adjusts the clamping angle of the clamping member (22) according to the shape of the elbow. The adjusting member (21) adjusts the positions of the clamping member (22) and the auxiliary member (23) according to the size of the automobile exhaust elbow.

3. The elbow welding device for metal product processing according to claim 2, characterized in that: The adjusting member (21) comprises a rotating platform (211) arranged directly above the welding table (1); a plurality of adjusting screw rods (212) are fixedly and rotatably connected to the bottom of the rotating platform (211); a clamping rod (213) is rotatably connected to the adjusting screw rods (212); a limiting rod (214) is fixedly connected to the bottom of the rotating platform (211); and the clamping rod (213) is slidably connected to the limiting rod (214).

4. The elbow welding device for metal product processing according to claim 2, characterized in that: The clamping member (22) includes an electric push rod (221) fixedly connected to both ends of the clamping rod (213), and one end of the electric push rod (221) away from the clamping rod (213) is fixedly connected to an auxiliary telescopic rod 2 (222); Among them, one end of the auxiliary telescopic rod 2 (222) away from the electric push rod (221) is fixedly connected to a clamping arc piece 1 (223), and the side of the clamping arc piece 1 (223) away from the auxiliary telescopic rod 2 (222) is designed as an arc surface, and the arc surface of one side of the clamping arc piece 1 (223) is consistent with the side wall of the automobile exhaust elbow.

5. The elbow welding device for metal product processing according to claim 4, characterized in that: The clamping member (22) further comprises a clamping arc piece 2 (224) rotatably connected to both ends of the clamping arc piece 1 (223); and a pressure spring (225) is sleeved on one end of the auxiliary telescopic rod 2 (222) close to the clamping arc piece 1 (223).

6. The elbow welding device for metal product processing according to claim 2, characterized in that: The auxiliary component (23) includes an auxiliary rod (231) rotatably connected to one end of the clamping arc piece 2 (224) away from the clamping arc piece 1 (223); the side wall of the auxiliary telescopic rod 2 (222) is fixedly connected to a plurality of sliding rods (232); the middle part of the sliding rod (232) is slidably connected to a sliding block (234); and both ends of the sliding rod (232) are sleeved with an extrusion spring (233).

7. The elbow welding device for metal product processing according to claim 1, characterized in that: The rotating part (3) comprises: A synchronous member (31), the synchronous member (31) is installed at the bottom of the welding table (1), one end of the synchronous member (31) is fixedly connected to one end of the rotating platform (211), and the synchronous member (31) is used to drive the installation fixture part (2) to rotate; A pressing member (32) is installed at one end of the left side of the welding table (1). The pressing member (32) drives the automobile exhaust elbow pipe close to one end of the synchronous member (31) to be squeezed toward the automobile exhaust elbow pipe away from one end of the synchronous member (31) by cooperating with the rotation of the synchronous member (31), thereby increasing the squeezing force between the welding ends of the two automobile exhaust elbow pipes.

8. The elbow welding device for metal product processing according to claim 7, characterized in that: The synchronizer (31) includes a drive motor (311) fixedly connected to one side of the right end of the welding table (1), the output end of the drive motor (311) is fixedly connected to one end of the rotating platform (211), the output end of the drive motor (311) is connected to a transmission belt (312), and a rotating shaft (313) is passed through the middle of the support leg (11); The end of the transmission belt 1 (312) away from the driving motor (311) is in transmission connection with the rotating shaft (313), the end of the rotating shaft (313) away from the transmission belt 1 (312) is in transmission connection with the transmission belt 2 (314), and the side of the welding table (1) close to the transmission belt 2 (314) is rotated and penetrated by a synchronous rotating shaft (315), and the transmission belt 2 (314) is in transmission connection with the synchronous rotating shaft (315).

9. The elbow welding device for metal product processing according to claim 7, characterized in that: The pressing member (32) includes a limiting groove (321) provided at one end of the synchronous rotating shaft (315) close to the rotating platform (211), and the rotating platform (211) is slidably connected inside the limiting groove (321) on the synchronous rotating shaft (315); The end of the synchronous rotating shaft (315) close to the rotating platform (211) is sleeved with a return spring (322), and the end of the synchronous rotating shaft (315) away from the return spring (322) is sleeved with a push spring (323).

10. The elbow welding device for metal product processing according to claim 9, characterized in that: The pressing member (32) further includes a sliding sleeve (324) slidably connected to the synchronous rotating shaft (315); the side wall of the welding table (1) is fixedly connected to a limiting frame (325); the limiting frame (325) is provided with a plurality of sliding grooves; the sliding sleeve (324) is slidably connected to the inside of the sliding groove at one end of the limiting frame (325); The middle of the synchronous rotating shaft (315) is provided with an extrusion groove (326), the inner wall of the sliding sleeve (324) is fixedly connected with a sliding column (327), and the sliding column (327) is slidably connected inside the extrusion groove (326).

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