Tracking welding automatic walking mechanism for large semi-closed structure metal parts

Abstract

The utility model relates to a large semi-closed structure metal part tracking welding automatic walking mechanism which comprises a base, a body, a driving wheel assembly, a welding walking assembly and a clamping adjusting steel piece, and the body is installed on the upper portion of the base. The driving wheel assembly comprises a main driving wheel and an auxiliary driving wheel, and the main driving wheel and the auxiliary driving wheel are installed on the body in parallel. The welding walking assembly comprises a welding arm, a rear support, a front support and a welding gun seat, the rear support is fixedly installed at one end of the welding arm, the front support is fixedly installed at the other end of the welding arm, and the front support is connected with the welding gun seat; the welding arm is installed between the main driving wheel and the auxiliary driving wheel, the main driving wheel and the auxiliary driving wheel drive the welding arm to move forwards or backwards, and the driving wheels are installed on the body through clamping adjusting steel parts. The servo motor inputs torque to rotate the main driving wheel, the driving wheel assembly drives the welding walking assembly, and tracking welding of large metal parts of a semi-closed structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal welding, in particular to an automatic walking mechanism for tracking welding of large-scale semi-enclosed metal parts. Background Art

[0002] Currently, for Fig. 9 The internal welding of the large semi-enclosed structure metal parts shown is usually performed by manually drilling into the interior of the large semi-enclosed structure metal parts with a handheld welding gun. The working space is small and limited, and it is easy to cause personal injury to the operators, which poses occupational hazards. At the same time, the poor working conditions make it impossible to guarantee the welding quality.

[0003] Aiming at the above technical problems, an automatic walking mechanism for tracking welding of large semi-enclosed metal parts was studied. Summary of the invention

[0004] The utility model aims to overcome the deficiencies of the prior art and provide an automatic walking mechanism for tracking welding of large semi-enclosed metal parts.

[0005] The utility model solves the technical problem through the following technical solutions:

[0006] A large semi-enclosed structure metal part tracking welding automatic walking mechanism, comprising a base, a body, a driving wheel assembly, a welding walking assembly and a clamping and adjusting steel piece, wherein the body is mounted on the upper part of the base; the driving wheel assembly comprises a main driving wheel and a slave driving wheel, and the main driving wheel and the slave driving wheel are mounted on the body in parallel; the welding walking assembly comprises a welding arm, a rear bracket, a front bracket and a welding gun seat, the rear bracket is fixedly mounted on one end of the welding arm, the front bracket is fixedly mounted on the other end of the welding arm, and the front bracket is connected and mounted on the welding gun seat; the welding arm is mounted between the main driving wheel and the slave driving wheel, and the welding arm is driven forward or backward by the main driving wheel and the slave driving wheel; the slave driving wheel is mounted on the body through a clamping and adjusting steel piece.

[0007] Furthermore, the main body is fixedly assembled by an upper plate, a lower plate and a vertical plate, a welding arm installation space is formed between the upper plate and the lower plate, and the main driving wheel and the slave driving wheel of the driving wheel assembly are installed between the upper plate and the lower plate and are the front ends of the upper plate and the lower plate.

[0008] Furthermore, the clamping and adjusting steel member includes a guide block, a cover plate and a driven sleeve, the cover plate is installed at the front end of the guide block, the driven sleeve is installed in the slide groove of the guide block, and both ends of the shaft of the slave drive wheel are respectively installed in the driven sleeve.

[0009] Furthermore, the welding gun seat is used to fix the welding gun.

[0010] Furthermore, the front bracket is connected to install the front bracket horizontal roller and the front bracket vertical roller; the rear bracket is connected to install the rear bracket roller.

[0011] Furthermore, a front bracket vertical magnetic block is vertically installed on the left end surface of the front bracket, and a front bracket horizontal magnetic block is installed on the lower surface of the front bracket.

[0012] Furthermore, the welding arm is arc-shaped.

[0013] The advantages and positive effects of the utility model are:

[0014] 1. The utility model discloses an automatic walking mechanism for tracking welding of large semi-enclosed metal parts. The welding arm in the welding walking assembly allows the welding gun to be inserted into the interior of the large semi-enclosed metal parts for automatic walking and completes the welding process.

[0015] 2. The utility model of the automatic walking mechanism for tracking welding of large semi-enclosed metal parts can realize the tracking welding of large semi-enclosed metal parts through the perfect cooperation of the main driving wheel and the driven driving wheel clamping welding arm and the roller and the magnetic block, and can be used for welding processing of welds with different curved shapes.

[0016] 3. The utility model has an automatic walking mechanism for tracking welding of large semi-enclosed metal parts, rollers at the lower end of the rear bracket, the upper and lower ends of the left side of the front bracket, and the lower end of the right side of the front bracket, and magnetic blocks at the middle end of the left side of the front bracket and the lower end of the front bracket, to ensure the determined position and walking track of the welding arm.

[0017] 4. The clamping and adjusting steel parts of the automatic walking mechanism for tracking welding of large semi-enclosed metal parts of the utility model are used to clamp the slave drive wheel, and the center distance between the main drive wheel and the slave drive wheel is adjusted by adjusting the bolts to ensure that the welding arm clamped between the main drive wheel and the slave drive wheel obtains appropriate friction force. When the main drive wheel rotates, the friction force drives the welding arm to move along the track.

[0018] 5. The utility model has a large semi-enclosed structure metal parts tracking welding automatic walking mechanism. The welding gun is placed obliquely in the welding gun seat and fixed by bolts. The clamping position and direction of the welding gun can be adjusted.

[0019] 6. The automatic walking mechanism for tracking welding of large semi-enclosed metal parts of the utility model can be flexibly applied to meet the requirements of different shapes of welds by simply replacing the welding arms of corresponding shapes.

[0020] 7. The utility model of the automatic walking mechanism for tracking welding of large semi-enclosed metal parts can effectively improve welding quality, improve welding working conditions and reduce occupational hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a first-angle three-dimensional structural schematic diagram of the utility model of the automatic walking mechanism for tracking welding of large semi-enclosed metal parts;

[0022] Figure 2 It is a second angle three-dimensional structural diagram of the utility model of the large semi-enclosed structure metal parts tracking welding automatic walking mechanism;

[0023] Figure 3 It is a third angle three-dimensional structural schematic diagram of the utility model of the automatic walking mechanism for tracking welding of large semi-enclosed structure metal parts;

[0024] Figure 4 A three-dimensional diagram of a guide block for clamping and adjusting steel parts of an automatic walking mechanism for tracking welding of large semi-enclosed structure metal parts of the utility model;

[0025] Figure 5 This is a structural diagram of the guide block, cover plate and driven sleeve for clamping and adjusting steel parts of the automatic walking mechanism for tracking welding of large semi-enclosed metal parts of the utility model;

[0026] Figure 6 This is a structural diagram of the clamping and adjusting steel parts and the lower plate of the automatic walking mechanism for tracking welding of large semi-enclosed structure metal parts of the utility model;

[0027] Figure 7 This is a structural diagram of the clamping and adjusting steel parts, lower plate and driving wheel assembly of the automatic walking mechanism for tracking welding of large semi-enclosed structure metal parts of the utility model;

[0028] Figure 8 This is a structural diagram of the main body, clamping and adjusting steel parts and driving wheel assembly of the automatic walking mechanism for tracking welding of large semi-enclosed structure metal parts of the utility model;

[0029] Fig. 9 This is a reference diagram of the working state of the automatic walking mechanism for tracking welding of large semi-enclosed metal parts and metal parts of the utility model;

[0030] In the figure:

[0031] 1-base, 2-main driving wheel, 3-rear bracket, 4-body, 5-front bracket, 6-welding gun seat, 7-welding arm, 8-clamping and adjusting steel parts, 8.1-guide block, 8.2-cover plate, 8.3-driven sleeve, 8.4-adjusting bolt, 8.5-locking nut, 9-pillar, 10-slave driving wheel, 11-rear bracket roller, 12-welding gun, 13-front bracket vertical magnetic block, 14-vertical plate, 15-upper plate, 16-lower plate, 17-front bracket horizontal roller, 18-front bracket horizontal magnetic block, 19-front bracket vertical roller, 20-metal parts, 21-weld, 22-active sleeve, 23-main driving wheel input end. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited by them.

[0033] A large semi-enclosed structure metal parts tracking welding automatic walking mechanism, including a base 1, a body 4, a driving wheel assembly, a welding walking assembly and a clamping adjustment steel piece 8, wherein the body 4 is mounted on the upper part of the base 1; the driving wheel assembly includes a main driving wheel 2 and a slave driving wheel 10, wherein the main driving wheel 2 and the slave driving wheel 10 are mounted in parallel on the body 4, and the middle outer part of the main driving wheel 2 and the slave driving wheel 10 is made of polyurethane material, which is more rigid and tough than rubber material, so as to ensure that the main driving wheel 2 and the slave driving wheel 1 0 is attached to the welding arm 7 so that the welding arm 7 moves along the welding sliding track; the welding walking assembly includes the welding arm 7, the rear bracket 3, the front bracket 5, and the welding gun seat 6, the rear bracket 3 is fixedly installed on one end of the welding arm 7, the front bracket 5 is fixedly installed on the other end of the welding arm 7, the front bracket 5 is connected to and installed on the welding gun seat 6, and the welding gun 12 is fixedly installed on the welding gun seat 6; the welding arm 7 is installed between the main driving wheel 2 and the slave driving wheel 10, and the main driving wheel 2 and the slave driving wheel 10 drive the welding arm 7 to move forward or backward.

[0034] The main body 4 is fixedly assembled by an upper plate 15, a lower plate 16 and a vertical plate 14. An installation space for the welding arm 7 is formed between the upper plate 15 and the lower plate 16. The main driving wheel 2 and the slave driving wheel 10 of the driving wheel assembly are installed between the upper plate 15 and the lower plate 16 and are at the front end of the upper plate 15 and the lower plate 16. The lower plate 16 is connected to the base 1 through a pillar 9.

[0035] The clamping and adjusting steel member 8 comprises a guide block 8.1, a cover plate 8.2 and a driven sleeve 8.3. The cover plate 8.2 is installed at the front end of the guide block 8.1 and connected by bolts. The driven sleeve 8.3 is installed in the slide groove of the guide block 8.1. Both ends of the shaft of the slave drive wheel 10 are respectively installed in the driven sleeve 8.3.

[0036] The front ends of the upper plate 15 and the lower plate 16 are both provided with U-shaped grooves. The clamping and adjusting steel member 8 is fixedly installed on the lower end surface of the lower plate 16 by bolts. The sliding groove of the guide block 8.1 faces the lower end surface of the lower plate 16. The driven sleeve 8.3 is located in the U-shaped groove at the front end of the lower plate 16. The upper end surface of the upper plate 15 is symmetrically fixedly installed with the clamping and adjusting steel member 8 by bolts. The sliding groove of the guide block 8.1 faces the upper end surface of the upper plate 15. The driven sleeve 8.3 is located in the U-shaped groove at the front end of the upper plate 15. The two ends of the shaft of the slave drive wheel 10 are respectively installed in the driven sleeve 8.3 It is rotatable. Rotating the adjusting bolt 8.4 located at the center of the cover plate 8.2 can make the driven sleeve 8.3 drive the slave drive wheel 10 to move forward or backward along the slide groove, thereby adjusting the center distance between the main drive wheel 2 and the slave drive wheel 10. Tightening the locking nut keeps the center distance fixed to ensure that the welding arm 7 clamped between the main drive wheel 2 and the slave drive wheel 10 obtains a suitable friction force. The main drive wheel input end 23 is used to connect a servo motor. The servo motor drives the main drive wheel 2 to rotate. At this time, the friction force drives the welding arm 7 to move.

[0037] The front ends of the upper plate 15 and the lower plate 16 are both provided with round holes, in which active sleeves 22 are fixed, and the main drive wheel input end 23 passes through the active sleeve 22 of the upper plate 15, and the output end of the main drive wheel 2 is installed in the active sleeve 22 of the lower plate 16. The main drive wheel input end 23 is used to connect to the servo motor, and the servo motor drives the main drive wheel 2 to rotate.

[0038] The front bracket 5 is connected to install the front bracket horizontal roller 17 and the front bracket vertical roller 19; the front bracket horizontal roller 17 is two, one of which is horizontally installed on the upper side of the left end of the front bracket 5 by bolts, and the other is horizontally installed on the lower side of the left end of the front bracket 5 by bolts; the front bracket vertical roller 19 is vertically installed on the lower side of the right end of the front bracket 5 by bolts; the lower end of the rear bracket 3 is connected to the rear bracket roller 11 by bolts; the front bracket horizontal roller 17, the front bracket vertical roller 19 and the rear bracket roller 11 are all made of non-magnetic materials, such as copper or aluminum, to ensure the flexibility of the front bracket horizontal roller 17, the front bracket vertical roller 19 and the rear bracket roller 11.

[0039] The left end surface of the front bracket 3 is vertically mounted with a front bracket vertical magnet 13 by bolts, and the front bracket vertical magnet 13 is located between the front bracket horizontal rollers 17 horizontally mounted above and below the left end of the front bracket 5 by bolts, and the center of the lower surface of the front bracket is horizontally mounted with a front bracket horizontal magnet 18 by bolts. The front bracket vertical magnet 13 and the front bracket horizontal magnet 18 are used to ensure that the welding track does not deviate.

[0040] The welding arm 7 is arc-shaped, forming a smooth curved welding trajectory.

[0041] The utility model can realize the tracking welding of large semi-enclosed structure metal parts and the welding processing of welds 21 with different curved shapes; the welding gun 12 is placed obliquely in the welding gun seat 6 and fixed by bolts, and the clamping position and direction of the welding gun 12 can be adjusted; the welding arm 7 drives the welding gun 12 to move along the required trajectory for welding. For requirements for welds 21 with different shapes, it is only necessary to replace the welding arm 7 with the corresponding shape.

[0042] The working principle of this utility model:

[0043] The power input of the automatic walking mechanism for tracking welding of large semi-enclosed metal parts of the utility model is input through a servo motor connected to the input end 23 of the main driving wheel. The center distance between the main driving wheel 2 and the slave driving wheel 10 is adjusted by clamping and adjusting the steel part 8. The friction force generated between the main driving wheel 2 and the slave driving wheel 10 and the welding arm 7 is the driving force of the welding arm 7; the main driving wheel 2 rotates to drive the welding arm 7 forward or backward, so that the welding gun 12 on the welding gun seat 6 of the front bracket 5 completes the tracking welding of the weld 21 of the metal part 20.

[0044] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the examples and drawings.

Claims

1. An automatic walking mechanism for tracking welding of large semi-enclosed metal parts. Features: The invention comprises a base (1), a body (4), a driving wheel assembly, a welding travel assembly and a clamping and adjusting steel piece (8), wherein the body (4) is mounted on the upper part of the base (1); the driving wheel assembly comprises a main driving wheel (2) and a slave driving wheel (10), wherein the main driving wheel (2) and the slave driving wheel (10) are mounted in parallel on the body (4); the welding travel assembly comprises a welding arm (7), a rear bracket (3), a front bracket (5) and a welding gun seat (6), wherein the rear bracket (3) is fixedly mounted on one end of the welding arm (7), the front bracket (5) is fixedly mounted on the other end of the welding arm (7), and the front bracket (5) is connected to and mounted on the welding gun seat (6); the welding arm (7) is mounted between the main driving wheel (2) and the slave driving wheel (10), and the welding arm (7) is driven forward or backward by the main driving wheel (2) and the slave driving wheel (10); and the slave driving wheel (10) is mounted on the body (4) via the clamping and adjusting steel piece (8).

2. According to claim 1, a large semi-enclosed structure metal parts tracking welding automatic walking mechanism, Features: The body (4) is formed by fixing an upper plate (15), a lower plate (16) and a vertical plate (14); a welding arm (7) installation space is formed between the upper plate (15) and the lower plate (16); a main driving wheel (2) and a slave driving wheel (10) of the driving wheel assembly are installed between the upper plate (15) and the lower plate (16) and are at the front ends of the upper plate (15) and the lower plate (16).

3. A large semi-enclosed structure metal parts tracking welding automatic walking mechanism according to claim 1 or 2, Features: The clamping and adjusting steel member (8) comprises a guide block (8.1), a cover plate (8.2) and a driven sleeve (8.3); the cover plate (8.2) is mounted on the front end of the guide block (8.1); the driven sleeve (8.3) is mounted in a slide groove of the guide block (8.1); and both ends of the shaft of the driven drive wheel (10) are respectively mounted in the driven sleeve (8.3).

4. According to claim 1, a large semi-enclosed structure metal parts tracking welding automatic walking mechanism, Features: The welding gun seat (6) is used to fix the welding gun (12).

5. According to claim 1, a large semi-enclosed structure metal parts tracking welding automatic walking mechanism, Features: The front bracket (5) is connected to and installed with a front bracket horizontal roller (17) and a front bracket vertical roller (19); and the rear bracket (3) is connected to and installed with a rear bracket roller (11).

6. According to claim 1, a large semi-enclosed structure metal parts tracking welding automatic walking mechanism, Features: A front bracket vertical magnetic block (13) is vertically mounted on the left end surface of the front bracket (5), and a front bracket horizontal magnetic block (18) is mounted on the lower surface of the front bracket (5).

7. According to claim 1, a large semi-enclosed structure metal parts tracking welding automatic walking mechanism, Features: The welding arm (7) is arc-shaped.

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