CN220862971U

CN220862971U - Argon arc welds back of body gas protection device

Info

Publication number: CN220862971U
Application number: CN202322634168.5U
Authority: CN
Inventors: 张光先; 杜德志; 李金龙; 闫瑞志; 张�杰
Original assignee: Aotai Electric Co ltd
Current assignee: Aotai Electric Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-04-30
Anticipated expiration: 2033-09-27

Abstract

The utility model discloses an argon arc welding back gas protection device, which belongs to the technical field of welding tools and comprises a mounting frame, wherein a manual screw rod adjusting module is arranged on the side part of the mounting frame; the upper portion of mounting bracket sets up first mounting hole, set up the rotation axis in the first mounting hole, the upper portion of rotation axis sets up first support frame, the both ends of first support frame set up linear bearing, set up the guiding axle in the linear bearing, set up the spring on the guiding axle, the upper portion of guiding axle passes second support frame and back of the body gas protection box fixed connection, the both ends of second support frame set up the bearing mounting panel. The position of the back gas protection device can be flexibly adjusted, the application range of the back gas protection is improved, and leakage is avoided; and the argon can be uniformly distributed, and the argon arc welding quality is ensured.

Description

Argon arc welds back of body gas protection device

Technical Field

The utility model belongs to the technical field of welding tools, and particularly relates to an argon arc welding back gas protection device.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Argon arc welding refers to a welding technique using argon as a shielding gas, also known as argon gas shielded welding. Argon shielding gas is introduced around the arc welding to isolate air outside the welding area and prevent oxidation of the welding area. In the current argon arc welding process, the back of a weldment needs protection of argon so as to improve welding quality and avoid welding defects. The conventional back gas protection device cannot effectively adjust the height of the back gas protection box in a large range and cannot adjust the transverse distance in a large range, so that errors caused by a special welding machine and welding in the height and transverse width directions of a welding line cannot be compensated, and the problem of insufficient back gas protection area is easily caused. In addition, in the process of welding circular seams and longitudinal seams, the conventional back gas protection box cannot be effectively attached to the welding back, so that argon leakage can be caused, and the quality of welding protection is reduced.

Disclosure of utility model

Aiming at the problems, the utility model provides the back gas protection device for the argon arc welding, which can flexibly adjust the position of the back gas protection device, improves the using range of the back gas protection and avoids leakage; and the argon can be uniformly distributed, and the argon arc welding quality is ensured.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The argon arc welding back gas protection device comprises a mounting frame, wherein a manual screw rod module is arranged on the side part of the mounting frame; the upper portion of mounting bracket sets up first mounting hole, set up the rotation axis in the first mounting hole, the upper portion of rotation axis sets up first support frame, the both ends of first support frame set up linear bearing, set up the guiding axle in the linear bearing, set up the spring on the guiding axle, the upper portion of guiding axle passes second support frame and back of the body gas protection box fixed connection, the both ends of second support frame set up the bearing mounting panel.

Further, a locking block is arranged at the lower part of the mounting frame and sleeved on the rotating shaft, and the locking block is connected with the lower part of the mounting frame by a bolt; the upper end of the locking block is provided with a shaft hole, and the rotating shaft penetrates through the shaft hole; mounting holes are formed in two ends of the shaft hole, and bolts are arranged in the mounting holes; the lateral part of latch segment sets up the screw hole, threaded hole internal setting locking handle.

Further, the locking handle comprises a handle and a screw rod, the screw rod is arranged in the threaded hole, and one end of the screw rod is fixedly connected with the screw rod.

Further, a bearing is arranged at the upper end of the bearing mounting plate, and the bearing is detachably connected with the bearing mounting plate; the lateral part of bearing mounting panel sets up the slot hole, set up locking screw in the slot hole.

Further, the locking screws are arranged in a plurality, the locking screws sequentially penetrate through long holes of the bearing mounting plate and the side parts of the second supporting frame, and the bearing mounting plate is connected with the second supporting frame through screws.

Further, a second mounting hole is formed in the side portion of the first mounting hole, and the linear bearing is arranged in the second mounting hole.

Further, an air inlet copper pipe is arranged in the back air protection box, an air inlet hole is formed in the air inlet copper pipe, one end of the air inlet copper pipe is fixedly connected with the inner wall of the back air protection box, and the other end of the air inlet copper pipe penetrates through the bottom of the back air protection box.

Further, the upper part of the air inlet copper pipe is provided with an air sieve plate, an air sieve hole is arranged on the air sieve plate, and the air sieve plate is fixedly connected with the inner wall of the back air protection box.

Further, the manual screw rod adjusting module comprises a supporting frame, and the supporting frame is fixedly connected with the lower part of the mounting frame; the support frame is provided with a screw rod, and two ends of the screw rod are provided with linear guide rails; the upper portion of the linear guide rail is provided with a mounting seat, the lower portion of the mounting seat is provided with a sliding block, the sliding block is provided with a threaded hole, and the screw rod penetrates through the threaded hole.

Further, a screw hole is formed in the upper surface of the mounting seat, and the mounting seat is connected with the mounting frame; one end of the screw rod is detachably connected with the support frame, and the other end of the screw rod penetrates through the support frame; and a hand wheel is arranged at one end of the screw rod penetrating through the supporting frame, and the hand wheel is fixedly connected with the screw rod.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. The utility model can flexibly adjust the position of the back gas protection device, the back gas protection box is lifted by sliding the guide rod in the linear bearing, the back gas protection box can be lifted by compressing the spring, and the spring is compressed for a certain distance in the working state, so that the back gas protection box is tightly attached to the back of the weldment, the argon leakage is prevented, namely, the height lifting of the back gas protection box is realized by the guide rod, the linear bearing and the spring. The installation frame is driven to move through the installation seat, so that the back air protection box is moved, the width direction adjustment of the back air protection box can be realized, and the application range of back air protection is improved.

2. According to the utility model, the air inlet copper pipe is provided with the plurality of air inlets, so that argon can uniformly enter the back air protection box, the air screen plate is arranged on the upper part of the air inlet copper pipe, and the argon is further dispersed on the welding seam of the workpiece through the air screen holes of the air screen plate, so that the protection effect is improved, and the welding quality is further ensured.

3. The bearing mounting plate is arranged, the position of the bearing mounting plate on the second support frame can be adjusted through the locking screw, the height adjustment of the bearing mounting plate is realized, the bearing is arranged at the upper part of the bearing mounting plate, the bearing can slide along the inside of the weldment in a working state, the sliding friction is reduced, and the high-temperature-resistant adhesive tape is prevented from falling off due to excessive friction.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a perspective view of a back gas protection device of the present utility model;

FIG. 2 is a view of the locking handle of the present utility model;

FIG. 3 is a linear bearing position diagram of the present utility model;

FIG. 4 is a block construction diagram of the present utility model;

FIG. 5 is a view of the position of the locking screw of the present utility model;

FIG. 6 is a view of the position of the inlet copper tube of the present utility model;

FIG. 7 is a schematic view of a girth weld attitude of the backing gas shield of the present utility model;

FIG. 8 is a schematic view of a longitudinal seam welding attitude of the back air protection device of the present utility model;

FIG. 9 is a block diagram of a manually adjustable screw module of the present utility model;

In the figure: 1. a mounting frame; 2. a manual screw rod adjusting module; 21. a screw rod supporting frame; 22. a linear guide rail; 23. a screw rod; 24. a mounting base; 25. a hand wheel; 3. an air inlet copper pipe; 31. an air inlet hole; 4. a bearing mounting plate; 5. a bearing; 6. a back gas protection box; 7. a gas sieve plate; 71. a gas sieve aperture; 8. a second support frame; 9. a linear bearing; 10. a locking handle; 101. a handle; 102. a screw; 11. a guide shaft; 12. a rotation shaft; 13. a locking block; 131. a shaft hole; 132. a threaded hole; 133. a mounting hole; 14. a locking screw; 15. a first mounting hole; 16. a second mounting hole; 17. a spring; 18. a first support frame.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

The utility model is described in detail below by combining the drawings, and the argon arc welding back gas protection device disclosed by the embodiment, as shown in fig. 1, comprises a mounting frame 1, wherein a manual screw rod module 2 is arranged at the side part of the mounting frame 1; the upper portion of mounting bracket 1 sets up first mounting hole 15, sets up rotation axis 12 in the first mounting hole 15, and the upper portion of rotation axis 12 sets up first support frame 18, and the both ends of first support frame 18 set up linear bearing 9, set up guiding axle 11 in the linear bearing 9, set up spring 17 on the guiding axle 11, and the upper portion of guiding axle 11 passes second support frame 8 and back of the body gas protection box 6 fixed connection, and the both ends of second support frame 8 set up bearing mounting panel 4. Arc-shaped states are formed on two sides of the top of the back gas protection box 6, so that the back gas protection box can adapt to the inner wall of a round workpiece, and leakage of argon is reduced.

The direction of the back air protecting box 6 can be changed through the rotating shaft 12, and the back air protecting device can be suitable for the circular seam welding posture and the longitudinal seam welding posture by changing the direction of the back air protecting box 6. As shown in fig. 7, the back air protection device is in a girth welding posture, at this time, the radian direction of the arc structure at the upper part of the back air protection box is consistent with the direction of the girth, the rotating shaft 12 is positioned in the first mounting hole 15, the linear bearing 9 at one end is positioned in the second mounting hole 16, the linear bearing 9 at the other end is positioned at the side part of the mounting frame 1, the locking handle 10 is in a locking state, and argon is introduced into the back air protection box 6 through the air inlet copper pipe 3 for welding.

As shown in fig. 8, the back air protection device is in a longitudinal seam welding posture, at this time, the radian direction of the arc structure at the upper part of the back air protection box 6 is consistent with the direction of the longitudinal seam, the rotating shaft 12 is positioned in the first mounting hole 15, the linear bearings 9 at the two ends are positioned at the side part of the mounting frame 1, the locking handle 10 is in a locking state, and argon is introduced into the back air protection box 6 through the air inlet copper pipe 3 to weld.

The method for switching the circumferential seam welding posture to the longitudinal seam welding posture comprises the following steps: the locking handle 10 is screwed at first, the opening of the locking block 13 is loosened, the rotating shaft 12 can rotate freely and lift, the guide rod moves upwards in the linear bearing 9, the linear bearing 9 is separated from the second mounting hole 16, the rotating shaft 12 is lifted up, the rotating shaft 12 rotates, the radian direction of the arc-shaped structure at the upper part of the back air protection box 6 is consistent with the direction of the longitudinal seam, the rotating shaft 12 is lowered, the linear bearings 9 at two ends are positioned at two sides of the mounting frame 1, the locking handle 10 is screwed down, the opening of the locking block 13 is tightened, and the switching of the welding posture is completed.

The linear bearing 9 is matched with the guide shaft 11, and the back air protection box 6 can be lifted up through compression of the spring 17; the spring 17 is compressed a certain distance under the operating condition, so that the tight fitting between the back gas protection box 6 and the back of the weldment is realized, and argon leakage is prevented. After the welding postures of the circular seam and the longitudinal seam are switched, the rotating shaft 12 can be rotated rapidly, so that the direction of the back air protection box 6 is switched, the guiding direction of the bearing 5 is changed, and the welding requirements of the circular seam and the longitudinal seam with different pipe diameters are met.

The lower part of the mounting frame 1 is provided with a locking block 13, the locking block 13 is sleeved on the rotating shaft 12, and the locking block 13 is connected with the lower part of the mounting frame 1 by adopting a bolt; as shown in fig. 4, the upper end of the locking block 13 is provided with a shaft hole 131, and the rotation shaft 12 passes through the shaft hole 131; mounting holes 133 are formed at both ends of the shaft hole 131, and bolts are arranged in the mounting holes 133; the side of the locking block 13 is provided with a threaded hole 132, and the locking handle 10 is arranged in the threaded hole 132.

The locking block 13 is of a U-shaped structure as a whole, and an opening is arranged at the front part of the locking block 13, wherein a shaft hole 131 of the locking block 13 is used for installing a rotating shaft 12, and the rotating shaft 12 can move up and down and rotate in the shaft hole 131; bolts are arranged in the mounting holes 133 of the locking blocks 13, pass through the mounting holes 133 and the lower part of the mounting frame 1 in sequence, and fix the locking blocks 13 on the mounting frame 1; screw holes 132 are formed in the side portions of the opening positions, two screw holes 132 are formed in the side portions of the opening positions, threads in the two screw holes 132 are opposite in rotation direction, tightening or loosening of the locking block 13 is achieved through cooperation of the screw holes 132 and the locking handle 10, and further the rotation shaft 12 is limited, so that stability of the position of the back air protection box 6 is guaranteed.

As shown in fig. 2, the locking handle 10 includes a grip 101 and a screw 102, the screw 102 is disposed in a threaded hole 132, and one end of the screw 102 is fixedly connected to the screw 102. When in use, the handle 101 is screwed to drive the screw 102 to rotate, and the screw 102 rotates to tighten or loosen the opening position of the locking block 13.

As shown in fig. 5, a bearing 5 is arranged at the upper end of the bearing mounting plate 4, and the bearing 5 is detachably connected with the bearing mounting plate 4; the side of the bearing mounting plate 4 is provided with a long hole in which a locking screw 14 is arranged. The locking screws 14 are arranged in a plurality, the locking screws 14 sequentially penetrate through long holes of the bearing mounting plate 4 and the side parts of the second supporting frame 8, and the bearing mounting plate 4 is connected with the second supporting frame 8 through screws. The position of the bearing mounting plate 4 on the second supporting frame 8 can be adjusted through the locking screw 14, so that the height adjustment of the bearing mounting plate 4 is realized, the bearing 5 is arranged on the upper part of the bearing mounting plate 4, and the bearing mounting plate can slide along the inside of a weldment in a working state, so that sliding friction is reduced.

As shown in fig. 3, the side portion of the first mounting hole 15 is provided with a second mounting hole 16, and the linear bearing 9 is provided in the second mounting hole 16. When in the circumferential seam welding posture, the linear bearing 9 at one end is positioned in the second mounting hole 16, so that the height of the back air protection box 6 can be freely adjusted, and the back air protection box is not influenced by the mounting frame 1. In the longitudinal seam welding attitude, the linear bearing 9 is located at the side of the mount 1, and therefore, is not limited by the mount 1, and the linear bearing 9 does not need to be in the second mount.

As shown in fig. 6, an air inlet copper pipe 3 is arranged in the back air protection box 6, the air inlet copper pipe 3 is in an L shape, an air inlet hole 31 is arranged on the air inlet copper pipe 3, one end of the air inlet copper pipe 3 is fixedly connected with the inner wall of the back air protection box 6, and the other end of the air inlet copper pipe 3 penetrates through the bottom of the back air protection box 6. The upper part of the air inlet copper pipe 3 is provided with an air screen plate 7, the air screen plate 7 is provided with an air screen hole 71, and the air screen plate 7 is fixedly connected with the inner wall of the back air protection box 6. The upper part of the air inlet copper pipe 3 is provided with a plurality of air inlets 31, so that argon can uniformly enter the back air protection box 6, the upper part of the air inlet copper pipe 3 is provided with an air screen plate 7, the argon is further dispersed on a welding seam of a workpiece through air screen holes 71 of the air screen plate 7, the protection effect is improved, and the welding quality is further ensured.

As shown in fig. 9, the manual screw adjusting module 2 comprises a screw supporting frame 21, and the screw supporting frame 21 is fixedly connected with the lower part of the mounting frame 1; a screw rod 23 is arranged on the screw rod support frame 21, and two ends of the screw rod 23 are provided with linear guide rails 22; the upper portion of the linear guide 22 is provided with a mounting seat 24, the lower portion of the mounting seat 24 is provided with a sliding block, the sliding block is provided with a threaded hole, and a screw rod 23 penetrates through the threaded hole. Screw holes are formed in the upper surface of the mounting seat 24, and the mounting seat 24 is connected with the mounting frame 1; one end of the screw rod is detachably connected with the screw rod supporting frame 21, and the other end of the screw rod penetrates through the supporting frame; one end of the screw rod penetrating through the screw rod supporting frame 21 is provided with a hand wheel 25, and the hand wheel 25 is fixedly connected with the screw rod 23.

The screw rod 23 is driven to rotate by rotating the hand wheel 25, the screw rod 23 rotates to drive the sliding block to transversely move, the lower part of the mounting seat 24 moves along the linear sliding rail, the screw hole is formed in the upper surface of the mounting seat 24, the mounting seat 24 is provided with the mounting frame 1, the mounting seat 24 can be moved to drive the mounting frame 1 to move, the back air protection box 6 is further moved, the width direction adjustment of the back air protection box 6 can be realized, and the using range of back air protection is improved.

While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.

Claims

1. The argon arc welding back gas protection device is characterized by comprising a mounting frame, wherein a manual screw rod module is arranged on the side part of the mounting frame; the upper portion of mounting bracket sets up first mounting hole, set up the rotation axis in the first mounting hole, the upper portion of rotation axis sets up first support frame, the both ends of first support frame set up linear bearing, set up the guiding axle in the linear bearing, set up the spring on the guiding axle, the upper portion of guiding axle passes second support frame and back of the body gas protection box fixed connection, the both ends of second support frame set up the bearing mounting panel.

2. The argon arc welding back gas protection device according to claim 1, wherein a locking block is arranged at the lower part of the mounting frame, the locking block is sleeved on the rotating shaft, and the locking block is connected with the lower part of the mounting frame by adopting a bolt; the upper end of the locking block is provided with a shaft hole, and the rotating shaft penetrates through the shaft hole; mounting holes are formed in two ends of the shaft hole, and bolts are arranged in the mounting holes; the lateral part of latch segment sets up the screw hole, threaded hole internal setting locking handle.

3. The argon arc welding back gas protection device according to claim 2, wherein the locking handle comprises a handle and a screw rod, the screw rod is arranged in the threaded hole, and one end of the screw rod is fixedly connected with the screw rod.

4. The argon arc welding back gas protection device according to claim 1, wherein a bearing is arranged at the upper end of the bearing mounting plate, and the bearing is detachably connected with the bearing mounting plate; the lateral part of bearing mounting panel sets up the slot hole, set up locking screw in the slot hole.

5. The argon arc welding backing gas protection device according to claim 4, wherein a plurality of locking screws are arranged, the locking screws sequentially penetrate through long holes of the bearing mounting plate and the side parts of the second supporting frame, and the bearing mounting plate is connected with the second supporting frame through screws.

6. The argon arc welding back gas protecting device according to claim 1, wherein a second mounting hole is formed in the side portion of the first mounting hole, and the linear bearing is arranged in the second mounting hole.

7. The argon arc welding back gas protection device according to claim 1, wherein an air inlet copper pipe is arranged in the back gas protection box, an air inlet hole is formed in the air inlet copper pipe, one end of the air inlet copper pipe is fixedly connected with the inner wall of the back gas protection box, and the other end of the air inlet copper pipe penetrates through the bottom of the back gas protection box.

8. The argon arc welding back gas protection device according to claim 7, wherein a gas sieve plate is arranged on the upper portion of the gas inlet copper pipe, gas sieve holes are formed in the gas sieve plate, and the gas sieve plate is fixedly connected with the inner wall of the back gas protection box.

9. The argon arc welding back gas protection device according to claim 1, wherein the manual screw rod module comprises a support frame which is fixedly connected with the lower part of the mounting frame; the support frame is provided with a screw rod, and two ends of the screw rod are provided with linear guide rails; the upper portion of the linear guide rail is provided with a mounting seat, the lower portion of the mounting seat is provided with a sliding block, the sliding block is provided with a threaded hole, and the screw rod penetrates through the threaded hole.

10. The argon arc welding back gas protection device according to claim 9, wherein the upper surface of the mounting seat is provided with a screw hole, and the mounting seat is connected with the mounting frame; one end of the screw rod is detachably connected with the support frame, and the other end of the screw rod penetrates through the support frame; and a hand wheel is arranged at one end of the screw rod penetrating through the supporting frame, and the hand wheel is fixedly connected with the screw rod.