Welding wire angle adjusting device for mine car hopper welding

Abstract

The utility model relates to the technical field of welding devices, in particular to a welding wire angle adjusting device for mine car hopper welding, which can lock a spherical body, reduce the degree of freedom of a sphere part, avoid the change of a conveying angle of a welding wire and improve the reliability. Comprising a wire reel frame and a mounting frame, the transverse rod is installed on the installation frame, the guide frame is installed on the transverse rod, a threaded hole is formed in the guide frame, the rotating ring is in threaded connection with the threaded hole of the guide frame through the external threaded pipe, the shell is installed on the guide frame, the rotating ring is located on the lower portion of the containing cavity of the shell, an open groove is formed in the side wall of the shell, and the spherical body is arranged in the open groove. The rotating ring is located in the open groove of the shell, a through hole communicated with the containing cavity is formed in the middle of the shell, a welding wire hole is formed in the middle of the spherical body, the spherical body is located between the hemispherical cavity of the rotating ring and the containing cavity of the shell, and the upper portion of the spherical body extends out of the upper portion of the shell through the through hole.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of welding device especially relates to mining car hopper welding welding wire angle adjusting device. BACKGROUND

[0002] When the welding wire of mining car hopper welding is sent from the welding wire disc to the welding gun, the angle of the welding wire delivery needs to be adjusted according to the angle and position of the welding gun. A variety of welding wire angle adjusting devices have been proposed in the prior art, for example, a kind of automatic adjusting device of wire feeding angle and wire feeder are proposed in Chinese invention patent with publication No. CN109604778B. The automatic adjusting device of wire feeding angle includes a fixedly connected base and a wire guide bracket, a wire feeding shaft is installed on the base, the wire feeding shaft can be used to pass through the wire feeding disc, the wire feeding disc can be wound with welding wire, a positioning bracket is arranged on the wire guide bracket, a radial angle adjusting device is arranged between the wire guide bracket and the positioning bracket, and the welding wire passes through the radial angle adjusting device; the radial angle adjusting device is used to automatically adjust the angle of the welding wire in a small range, so that the welding wire can be smoothly guided in any direction, and the problem of poor wire guiding is effectively solved.

[0003] The radial angle adjusting device of the above-mentioned prior art is composed of a spherical body and a connecting part, but the above-mentioned radial angle adjusting device does not have a locking function, resulting in a high degree of freedom of the spherical body. When the spherical body is tilted by external force, the delivery angle of the welding wire will change, and the reliability is low. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a kind of welding wire angle adjusting device for mining car hopper welding, which can lock spherical body, reduce the degree of freedom of spherical body, avoid the change of the delivery angle of welding wire, and improve the reliability.

[0005] The utility model discloses a welding wire angle adjusting device for mining car hopper welding, including welding wire disc frame and mounting frame, welding wire disc frame and mounting frame install on the bottom plate, and welding wire disc frame is used for loading welding wire disc, still include cross bar, guide frame, swivel, outer thread pipe, shell and spherical body, cross bar installs on the mounting frame, and guide frame installs on the cross bar, and sets up the threaded hole on the guide frame, and the threaded hole is used for welding wire, and the lower part of swivel sets up outer thread pipe, and outer thread pipe is connected with the threaded hole of guide frame, and the upper end surface of swivel sets up hemispherical cavity in the middle part, and shell installs on the guide frame, and the inside of shell sets up the accommodation cavity, and the upper part of accommodation cavity is hemispherical, and swivel is located in the lower part of the accommodation cavity of shell, and sets up the slot on the lateral wall of shell, and swivel is located in the slot of shell, and the middle part of shell sets up the through -hole that communicates with the accommodation cavity, and the middle part of spherical body sets up welding wire hole, and spherical body is located between the hemispherical cavity of swivel and the accommodation cavity of shell, and the upper part of spherical body is through the through -hole and is stretched out above shell, when working, welding wire disc is loaded to welding wire disc frame, and after welding wire head draws, passes through the threaded hole of guide frame, swivel and the welding wire hole of spherical body and is sent to welding machine, when needing to adjust welding wire output angle, through the slot of shell and rotate swivel, and swivel drives outer thread pipe and turns right, and under the action of outer thread pipe and guide frame's thread, make swivel drop, make swivel and shell loosen spherical body, at this moment, the orientation of spherical body's welding wire hole can be adjusted flexibly, thereby adjusting welding wire conveying angle, after adjusting, through the slot of shell and rotate and tighten swivel, and swivel drives outer thread pipe and turns left, make swivel rise, make swivel and fix spherical body tightly on the upper part of the accommodation cavity of shell, realize the locking of spherical body, reduce the degree of freedom of spherical body part, avoid the conveying angle change of welding wire caused by external force to spherical body, improve reliability.

[0006] Preferably, it further comprises an elastic conduit, and the upper part of the spherical body is provided with the elastic conduit; by arranging the elastic conduit, the elastic conduit can be adaptively bent when the welding wire is pulled, so that the welding wire is prevented from being bent and folded, and the wire feeding quality is improved.

[0007] Preferably, it further comprises a sliding sleeve ring, the sliding sleeve ring is movably sleeved on the cross bar, and the guide frame is installed on the sliding sleeve ring; the guide frame is slidably installed on the cross bar through the sliding sleeve ring, so that when the welding wire output from the welding wire disc moves along the axial direction of the welding wire disc, the sliding sleeve ring moves left and right along the cross bar following the pulling force of the welding wire, and the welding wire conveying is improved in smoothness.

[0008] Preferably, the bearing seat, the sliding block and the locking screw are further included, the cross bar is provided with a sliding groove, the bearing seat is concentrically installed on the end face of the sliding sleeve ring, the fixed end of the bearing seat is connected with the sliding sleeve ring, the guide frame is connected with the rotating end of the bearing seat, the bearing seat is arranged outside the cross bar, the sliding block is installed on the fixed end of the bearing seat, the sliding block is slidably connected with the sliding groove of the cross bar, the locking screw for locking the rotating end and the fixed end of the bearing seat is arranged on the bearing seat; when the angle and the direction of the guide frame need to be adjusted, the locking screw is loosened, so that the rotating end and the fixed end of the bearing seat can rotate, the angle of the guide frame is adjusted after the rotating end and the fixed end of the bearing seat are rotated, the locking screw is tightened to lock the rotating end and the fixed end of the bearing seat, and the sliding block is slidably connected with the sliding groove of the cross bar, so that the guide frame will not be deflected when the sliding sleeve ring moves left and right along the cross bar, and the reliability is improved.

[0009] Preferably, the guide groove ring one, the guide wheel one and the guide groove ring two are further included, the guide groove ring one is arranged on the wheel face of the sliding sleeve ring, the guide wheel one is rotatably installed on the guide frame, the guide groove ring two is arranged on the wheel face of the guide wheel one, and the guide groove ring two is aligned with the guide groove ring one; the welding wire output from the welding wire disc passes between the sliding sleeve ring and the guide wheel one, and the guide groove ring one and the guide groove ring two limit the welding wire, so that the welding wire is more stable before passing through the spherical body.

[0010] Preferably, the straightening frame, the straightening wheel one, the straightening wheel two and the straightening wheel three are further included, the upper end of the straightening frame is connected with the wheel face of the sliding sleeve ring, the lower part of the straightening frame is provided with a vertical auxiliary wheel frame, the straightening wheel one and the straightening wheel two are rotatably installed on the lower part of the straightening frame, the straightening wheel one and the straightening wheel two are located on the two sides of the auxiliary wheel frame, the straightening wheel three is rotatably installed on the auxiliary wheel frame, and the welding wire guide grooves are arranged on the wheel faces of the straightening wheel one, the straightening wheel two and the straightening wheel three; the welding wire output from the welding wire disc passes through the welding wire guide grooves between the straightening wheel two, the straightening wheel three and the straightening wheel one, and the straightening wheel two, the straightening wheel one and the straightening wheel three straighten the welding wire, so that the conveying quality of the welding wire is improved.

[0011] Preferably, the long installation groove is further included, the long installation groove is arranged on the auxiliary wheel frame of the straightening frame, and the wheel shaft of the straightening wheel three is installed in the long installation groove; by arranging the long installation groove, the distance between the straightening wheel three and the straightening wheel one and the straightening wheel two can be adjusted, so that the straightening effect on the welding wire is adjusted.

[0012] The beneficial effects of the utility model compared with prior art are: when working, the welding wire reel is loaded on the welding wire reel frame, the welding wire head is drawn through the threaded hole of the guide frame, the rotating ring and the welding wire hole of the spherical body to the welding machine, when the welding wire output angle needs to be adjusted, the rotating ring is rotated through the slot of the shell, the rotating ring drives the outer threaded pipe to rotate positively, the rotating ring is lowered under the threaded action of the outer threaded pipe and the guide frame, the rotating ring and the shell loosen the spherical body, at this time, the orientation of the welding wire hole of the spherical body can be flexibly adjusted, so that the welding wire conveying angle is adjusted, after the adjustment is completed, the rotating ring is rotated and tightened through the slot of the shell, the rotating ring drives the outer threaded pipe to rotate reversely, the rotating ring is raised, the rotating ring tightly fixes the spherical body on the upper part of the containing cavity of the shell, the locking of the spherical body is realized, the degree of freedom of the spherical body part is reduced, the conveying angle of the welding wire caused by external force is avoided, and the reliability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the front view structural schematic diagram of the utility model;

[0015] Figure 3 It is Figure 2 The local enlarged structural schematic diagram of A in the figure;

[0016] Figure 4 It is the structural schematic diagram of guide frame, spherical body, sliding sleeve ring, bearing seat, guide wheel one, straightening frame, straightening wheel one, straightening wheel two and straightening wheel structure;

[0017] Figure 5 It is Figure 4 The local enlarged structural schematic diagram of B in the figure;

[0018] Figure 6 It is the structural schematic diagram of guide frame, rotating ring, shell, spherical body, sliding sleeve ring and bearing seat structure in the disassembled state.

[0019] Mark in the drawing: 1, welding wire reel frame; 2, mounting frame; 3, cross bar; 4, guide frame; 5, rotating ring; 6, outer threaded pipe; 7, shell; 8, spherical body; 9, sliding sleeve ring; 10, bearing seat; 11, sliding block; 12, locking screw; 13, guide groove ring one; 14, guide wheel one; 15, guide groove ring two; 16, straightening frame; 17, straightening wheel one; 18, straightening wheel two; 19, straightening wheel three; 20, long mounting groove; 21, elastic guide pipe. DETAILED DESCRIPTION

[0020] For the purpose of facilitating the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0021] Embodiment 1

[0022] As Figures 1 to 6 shown, the welding wire angle adjusting device for mining car hopper welding, including welding wire disc rack 1 and mounting frame 2, welding wire disc rack 1 and mounting frame 2 are installed on the bottom plate, welding wire disc rack 1 is used for loading welding wire disc; It also includes cross bar 3, guide frame 4, swivel 5, external thread pipe 6, shell 7 and spherical body 8, cross bar 3 is installed on mounting frame 2, guide frame 4 is installed on cross bar 3, guide frame 4 is provided with threaded hole, threaded hole is used for welding wire to pass through, the lower part of swivel 5 is provided with external thread pipe 6, external thread pipe 6 is connected with the threaded hole of guide frame 4, the upper end surface of swivel 5 is provided with semispherical cavity in the middle, shell 7 is installed on guide frame 4, the inside of shell 7 is provided with containing cavity, the upper part of containing cavity is semispherical, swivel 5 is located in the lower part of containing cavity of shell 7, the sidewall of shell 7 is provided with slot, swivel 5 is located in the slot of shell 7, the middle part of shell 7 is provided with through hole communicated with containing cavity, the middle part of spherical body 8 is provided with welding wire hole, spherical body 8 is located between the semispherical cavity of swivel 5 and the containing cavity of shell 7, the upper part of spherical body 8 extends above shell 7 through through hole;It also includes elastic conduit 21, the upper part of spherical body 8 is provided with elastic conduit 21.

[0023] When working, the welding wire disc is loaded to the welding wire disc rack 1, the welding wire head is extracted and passes through the threaded hole of guide frame 4, swivel 5 and the welding wire hole of spherical body 8 to the welding machine for conveying, when the welding wire output angle needs to be adjusted, swivel 5 is rotated through the slot of shell 7, swivel 5 drives external thread pipe 6 to rotate positively, under the action of external thread pipe 6 and guide frame 4, swivel 5 is lowered, so that swivel 5 and shell 7 loosen spherical body 8, at this time, the orientation of the welding wire hole of spherical body 8 can be adjusted flexibly, so as to adjust the welding wire conveying angle, after adjustment is completed, swivel 5 is rotated and tightened through the slot of shell 7, swivel 5 drives external thread pipe 6 to rotate reversely, so that swivel 5 is raised, so that swivel 5 fixes spherical body 8 tightly on the upper part of containing cavity of shell 7, the locking of spherical body 8 is realized, the degree of freedom of spherical body is reduced, the conveying angle of welding wire caused by external force is avoided, the reliability is improved, by setting elastic conduit 21, the elastic conduit 21 can be adaptively bent when the welding wire is pulled, the welding wire is prevented from being bent and folded, the wire feeding quality is improved.

[0024] Embodiment 2

[0025] As Figure 4 and Figure 6As shown, based on Embodiment 1, it also includes a sliding sleeve ring 9, which is movably fitted onto the crossbar 3, and a guide frame 4 is mounted on the sliding sleeve ring 9; it also includes a bearing seat 10, a slider 11, and a locking screw 12. A groove is provided on the crossbar 3, the bearing seat 10 is concentrically mounted on the end face of the sliding sleeve ring 9, the fixed end of the bearing seat 10 is connected to the sliding sleeve ring 9, the guide frame 4 is connected to the rotating end of the bearing seat 10, the bearing seat 10 surrounds the outside of the crossbar 3, the slider 11 is mounted on the fixed end of the bearing seat 10, the slider 11 is slidably connected to the groove of the crossbar 3, and a locking screw 12 is provided on the bearing seat 10 for locking the rotating end and the fixed end of the bearing seat 10; it also includes a first guide groove ring 13, a first guide wheel 14, and a second guide groove ring 15. The first guide groove ring 13 is provided on the wheel surface of the sliding sleeve ring 9, the first guide wheel 14 is rotatably mounted on the guide frame 4, the second guide groove ring 15 is provided on the wheel surface of the first guide wheel 14, and the second guide groove ring 15 is aligned with the first guide groove ring 13.

[0026] The guide frame 4 is slidably mounted on the crossbar 3 via the sliding sleeve ring 9. When the welding wire output from the welding wire spool moves along the axial direction of the welding wire spool, the sliding sleeve ring 9 moves left and right along the crossbar 3 following the tension of the welding wire, improving the smoothness of the welding wire feeding. When it is necessary to adjust the angle and orientation of the guide frame 4, the locking screw 12 is loosened, allowing the rotating end and the fixed end of the bearing seat 10 to rotate. After adjusting the angle by rotating the guide frame 4, the locking screw 12 is tightened to lock the rotating end and the fixed end of the bearing seat 10. The slider 11 is slidably connected to the groove of the crossbar 3, so that the guide frame 4 will not deflect when the sliding sleeve ring 9 moves left and right along the crossbar 3, improving reliability. The welding wire output from the welding wire spool passes between the sliding sleeve ring 9 and the first guide wheel 14, and the first guide groove ring 13 and the second guide groove ring 15 limit the welding wire, making the welding wire more stable before passing through the spherical body 8.

[0027] Example 3

[0028] like Figure 4 As shown, based on Embodiment 2, it also includes a straightening frame 16, a first straightening wheel 17, a second straightening wheel 18, and a third straightening wheel 19. The upper end of the straightening frame 16 is connected to the wheel surface of the sliding sleeve ring 9. A vertical auxiliary wheel frame is provided at the lower part of the straightening frame 16. The first straightening wheel 17 and the second straightening wheel 18 are rotatably mounted on the lower part of the straightening frame 16. The first straightening wheel 17 and the second straightening wheel 18 are located on both sides of the auxiliary wheel frame. The third straightening wheel 19 is rotatably mounted on the auxiliary wheel frame. Welding wire guide grooves are provided on the wheel surfaces of the first straightening wheel 17, the second straightening wheel 18, and the third straightening wheel 19. It also includes a long mounting groove 20. The auxiliary wheel frame of the straightening frame 16 is provided with a long mounting groove 20, and the wheel axle of the third straightening wheel 19 is installed in the long mounting groove 20.

[0029] The welding wire output from the welding wire disc passes through the welding wire guide groove between the straightening wheel two 18, the straightening wheel three 19 and the straightening wheel one 17, the straightening wheel two 18, the straightening wheel one 17 and the straightening wheel three 19 straighten the welding wire, improve the conveying quality of the welding wire, the long mounting groove 20 is arranged, the distance between the straightening wheel three 19 and the straightening wheel one 17 and the straightening wheel two 18 can be adjusted, and the straightening effect of the welding wire can be adjusted.

[0030] As shown in Figures 1 to 6 the utility model discloses a mine car hopper welding welding wire angle adjusting device, when working, first welding wire disc is loaded to the welding wire disc frame 1, and after the welding wire head is drawn out, passes through the welding wire guide groove between the straightening wheel two 18, the straightening wheel three 19 and the straightening wheel one 17, and the straightening wheel two 18, the straightening wheel one 17 and the straightening wheel three 19 straighten the welding wire, and the welding wire passes through the threaded hole of guide frame 4, swivel 5 and the welding wire hole of spherical body 8 to welding machine conveying, when the welding wire output on the welding wire disc moves along the axial direction of the welding wire disc, the sleeve ring 9 follows the pulling force of the welding wire and moves left and right along the cross bar 3, then when the welding wire output angle needs to be adjusted, the swivel 5 is rotated through the slot of the shell 7, the swivel 5 drives the external thread pipe 6 to rotate forward, the swivel 5 is lowered under the threaded action of the external thread pipe 6 and the guide frame 4, so that the swivel 5 and the shell 7 loosen the spherical body 8, at this time, the welding wire hole of the spherical body 8 can be adjusted flexibly, so as to adjust the welding wire conveying angle, after adjustment is completed, the swivel 5 is rotated and tightened through the slot of the shell 7, the swivel 5 drives the external thread pipe 6 to rotate reversely, the swivel 5 is lifted, so that the swivel 5 tightly fixes the spherical body 8 on the upper part of the accommodating cavity of the shell 7, the spherical body 8 is locked, finally, when the angle and direction of the guide frame 4 need to be adjusted, the locking screw 12 is loosened, so that the rotating end and the fixed end of the bearing seat 10 can rotate, the guide frame 4 is rotated to adjust the angle, and then the locking screw 12 is tightened to lock the rotating end and the fixed end of the bearing seat 10.

[0031] The main functions realized by the utility model are as follows:

[0032] 1. The spherical body 8 can be locked, the degree of freedom of the spherical body is reduced, the conveying angle of the welding wire is prevented from changing, and the reliability is improved.

[0033] 2. The welding wire can be straightened, and the conveying quality of the welding wire is improved.

[0034] 3. The angle adjusting device can move along the cross bar 3 left and right along with the axial movement of the welding wire output on the welding wire disc, and the welding wire conveying is smooth.

[0035] The welding wire angle adjusting device for the mine car hopper welding is provided with the welding wire disc holder 1, the mounting frame 2, the cross rod 3, the rotating ring 5, the outer threaded pipe 6, the spherical body 8, the sliding sleeve ring 9, the bearing seat 10, the sliding block 11, the locking screw rod 12, the guide wheel one 14, the straightening wheel one 17, the straightening wheel two 18, the straightening wheel three 19 and the elastic guide pipe 21, and the installation mode, the connection mode or the setting mode of the welding wire angle adjusting device are all common mechanical modes, and as long as the beneficial effects can be achieved, the implementation can be carried out; the welding wire angle adjusting device for the mine car hopper welding is provided with the welding wire disc holder 1, the mounting frame 2, the cross rod 3, the rotating ring 5, the outer threaded pipe 6, the spherical body 8, the sliding sleeve ring 9, the bearing seat 10, the sliding block 11, the locking screw rod 12, the guide wheel one 14, the straightening wheel one 17, the straightening wheel two 18, the straightening wheel three 19 and the elastic guide pipe 21, and the installation mode, the connection mode or the setting mode of the welding wire angle adjusting device are all common mechanical modes, and as long as the beneficial effects can be achieved, the implementation can be carried out.

[0036] All the technical and scientific terms used in the present application have the same meaning as that generally understood by the person skilled in the art of the present application. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more related listed items.

[0037] The above is only the preferred embodiment of the present application, and it should be pointed out that for the person skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A welding wire angle adjusting device for mining car hopper welding, comprising a welding wire reel rack (1) and a mounting rack (2), the welding wire reel rack (1) and the mounting rack (2) are installed on a bottom plate, the welding wire reel rack (1) is used for loading a welding wire reel; characterized in that, The device further comprises a crossbar (3), a guide frame (4), a swivel ring (5), an externally threaded pipe (6), a housing (7) and a spherical body (8), the crossbar (3) is installed on the mounting frame (2), the guide frame (4) is installed on the crossbar (3), the guide frame (4) is provided with a threaded hole through which a welding wire passes, the lower part of the swivel ring (5) is provided with the externally threaded pipe (6), the externally threaded pipe (6) is threadedly connected with the threaded hole of the guide frame (4), the upper end surface of the swivel ring (5) is provided with a semispherical cavity, the housing (7) is installed on the guide frame (4), the inside of the housing (7) is provided with a containing cavity, the upper part of the containing cavity is semispherical, the swivel ring (5) is located in the lower part of the containing cavity of the housing (7), the side wall of the housing (7) is provided with a slot, the swivel ring (5) is located in the slot of the housing (7), the middle part of the housing (7) is provided with a through hole which is in communication with the containing cavity, the middle part of the spherical body (8) is provided with a welding wire hole, the spherical body (8) is located between the semispherical cavity of the swivel ring (5) and the containing cavity of the housing (7), the upper part of the spherical body (8) extends above the housing (7) through the through hole.

2. The angle adjustment device for a welding wire for a mining car body welding according to claim 1, characterized in that, The device further comprises an elastic guide pipe (21), the upper part of the spherical body (8) is provided with the elastic guide pipe (21).

3. The mining truck body weld wire angle adjustment device of claim 1, wherein, The device further comprises a sliding sleeve ring (9), the sliding sleeve ring (9) is movably sleeved on the crossbar (3), and the guide frame (4) is installed on the sliding sleeve ring (9).

4. The welding wire angle adjustment device for mining car body welding of claim 3, wherein, The device further comprises a bearing seat (10), a sliding block (11) and a locking screw (12), the crossbar (3) is provided with a sliding groove, the bearing seat (10) is concentrically installed on the end surface of the sliding sleeve ring (9), the fixed end of the bearing seat (10) is connected with the sliding sleeve ring (9), the guide frame (4) is connected with the rotating end of the bearing seat (10), the bearing seat (10) surrounds the outside of the crossbar (3), the sliding block (11) is installed on the fixed end of the bearing seat (10), the sliding block (11) is slidably connected with the sliding groove of the crossbar (3), and the locking screw (12) for locking the rotating end and the fixed end of the bearing seat (10) is arranged on the bearing seat (10).

5. The mining truck body weld wire angle adjustment device of claim 3, wherein, The device further comprises a guide groove ring one (13), a guide wheel one (14) and a guide groove ring two (15), the guide groove ring one (13) is arranged on the wheel surface of the sliding sleeve ring (9), the guide wheel one (14) is rotatably installed on the guide frame (4), the guide groove ring two (15) is arranged on the wheel surface of the guide wheel one (14), and the guide groove ring two (15) is aligned with the guide groove ring one (13).

6. The welding wire angle adjustment device for mining car body welding of claim 3, wherein, The device further comprises a straightening frame (16), a straightening wheel one (17), a straightening wheel two (18) and a straightening wheel three (19), the upper end of the straightening frame (16) is connected with the wheel surface of the sliding sleeve ring (9), the lower part of the straightening frame (16) is provided with a vertical auxiliary wheel frame, the straightening wheel one (17) and the straightening wheel two (18) are rotatably installed on the lower part of the straightening frame (16), the straightening wheel one (17) and the straightening wheel two (18) are located on the two sides of the auxiliary wheel frame, the straightening wheel three (19) is rotatably installed on the auxiliary wheel frame, and the wheel surface of each of the straightening wheel one (17), the straightening wheel two (18) and the straightening wheel three (19) is provided with a welding wire guide groove.

7. The welding wire angle adjustment device for mining car body welding of claim 6, wherein, The device further comprises a long mounting groove (20), the long mounting groove (20) is arranged on the auxiliary wheel frame of the straightening frame (16), and the wheel shaft of the straightening wheel three (19) is installed in the long mounting groove (20).

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