Plasma arc welding tool for rotary platform of excavator

Abstract

The invention discloses an excavator revolving platform plasma arc welding tool, which relates to the technical field of excavator part welding processing, and comprises a welding processing table, a mounting frame fixedly connected to the outer wall of the top of the welding processing table, a positioning table, an excavator revolving platform positioning structure, a rotating structure and a plasma arc welding structure, the rotating structure comprises a rotating shaft, a stepping motor fixedly installed on the outer wall of the bottom of the positioning table, a worm fixedly arranged on an output shaft of the stepping motor in a sleeving mode and a worm gear fixedly arranged on the rotating shaft in a sleeving mode. The excavator rotating platform positioning structure comprises a plurality of locking assemblies which are arranged on the positioning table and distributed in an annular mode. According to the welding tool, positioning can be conducted from multiple angles of the excavator rotating platform through the multiple annularly-distributed locking assemblies, and then the positioning range and the positioning effect of the welding tool can be effectively improved; according to the welding device, the welding angle of the positioned excavator rotating platform can be flexibly adjusted conveniently, and then the multi-angle comprehensive welding effect can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of welding processing of excavator parts, in particular to a plasma arc welding tool for an excavator rotary platform. Background Art

[0002] The excavator slewing platform is an important component of the excavator. During the plasma arc welding process, it needs the help of welding tooling to effectively fix the parts and assist in the welding process.

[0003] However, the existing welding tooling has a simple structure. During use, it is not convenient to flexibly adjust the welding angle of the excavator slewing platform after positioning, and thus it is impossible to achieve the effect of multi-angle comprehensive welding. In addition, the function is traditional and single, and it is impossible to achieve accurate visual welding effect, which reduces the welding efficiency. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a plasma arc welding tool for an excavator revolving platform, which effectively solves the problems that the existing welding tool has a simple structure, is not convenient for flexible adjustment of the welding angle of the positioned excavator revolving platform during use, and thus cannot achieve the effect of multi-angle comprehensive welding, and has traditionally single functions, cannot achieve accurate visual welding effects, and reduces the welding efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A plasma arc welding tool for an excavator rotary platform, comprising a welding processing table, a mounting frame fixedly connected to the outer wall of the top of the welding processing table, a positioning table, an excavator rotary platform positioning structure, a rotating structure and a plasma arc welding structure;

[0007] The rotating structure includes a rotating shaft coaxially welded to the outer wall of the bottom of the positioning platform, a stepping motor fixedly mounted on the outer wall of the bottom of the positioning platform, a worm fixedly mounted on the output shaft of the stepping motor, and a worm wheel fixedly mounted on the rotating shaft;

[0008] The excavator slewing platform positioning structure includes a plurality of locking components arranged on the positioning platform and distributed in a ring shape, and the locking components include a slide groove opened on the top of the positioning platform, a threaded locking rod rotatably installed in the slide groove, and a threaded locking block threadedly connected to the threaded locking rod.

[0009] As a preferred technical solution of the present invention, the lower part of the rotating shaft is connected to the top inner wall of the welding processing table through a bearing, and the worm and the worm wheel are meshed with each other.

[0010] As a preferred technical solution of the present invention, the outer wall of the threaded locking block is slidably connected to the inner wall of the sliding groove, and an anti-slip rotating cap is fixedly connected to the outer wall of one end of the threaded locking rod.

[0011] As a preferred technical solution of the present invention, the plasma arc welding structure includes a lead screw rotatably mounted on the upper part of the mounting frame, a sliding seat threadedly connected to the middle part of the lead screw, and an industrial camera fixedly mounted on the outer wall of the bottom of the sliding seat.

[0012] As an optimal technical solution of the present invention, the plasma arc welding structure also includes an electric push rod fixedly installed on the front outer wall of the sliding seat, an L-shaped connecting seat fixedly connected to the output end of the electric push rod, a servo drive assembly, a plasma arc welding gun body fixedly installed on the outer wall of one side of the L-shaped connecting seat, and a cooling fan fixedly installed on the bottom outer wall of the L-shaped connecting seat.

[0013] As a preferred technical solution of the present invention, the top outer wall of the sliding seat is fixedly connected with a guide slide, the upper part of the mounting frame is provided with a slideway adapted to the guide slide, and the outer wall of the guide slide is slidably connected with the inner wall of the slideway.

[0014] As an optimal technical solution of the present invention, the servo drive assembly includes a support plate welded to the side wall of the mounting frame, a servo motor fixedly mounted on the top outer wall of the support plate, a driving gear fixedly mounted on the output shaft of the servo motor, and a transmission gear fixedly mounted on one end of the lead screw and meshing with the driving gear.

[0015] As a preferred technical solution of the present invention, an industrial integrated machine is fixedly installed on the top outer wall of the welding processing table.

[0016] The beneficial effects of the present invention are:

[0017] 1. The welding tool proposed in the present invention can be positioned from multiple angles of the excavator's rotary platform by using multiple annularly distributed locking assemblies, thereby effectively improving the positioning range and positioning effect of the welding tool;

[0018] 2. The welding tooling proposed by the present invention facilitates flexible adjustment of the welding angle of the excavator rotary platform after positioning, thereby achieving the effect of comprehensive welding at multiple angles;

[0019] 3. The welding tooling proposed in the present invention can accurately control the linear welding distance and welding height of the plasma arc welding gun body, thereby achieving accurate visual welding effects, facilitating better adaptation to the welding requirements of different excavator rotary platforms, and improving welding efficiency;

[0020] 4. The welding tooling proposed in the present invention can achieve a sufficiently uniform cooling effect during the welding process by driving the cooling fan to reciprocate in the horizontal direction through the sliding seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0022] Figure 1 This is a front view stereoscopic structural diagram of a plasma arc welding tooling for an excavator rotary platform proposed by the present invention;

[0023] Figure 2 This is a bottom view of a three-dimensional structure of a plasma arc welding tool for an excavator rotary platform proposed by the present invention;

[0024] Figure 3 This is a three-dimensional structural schematic diagram of the top of a positioning platform of a plasma arc welding tooling for an excavator rotary platform proposed by the present invention;

[0025] Figure 4 This is a three-dimensional enlarged structural schematic diagram of local parts of a plasma arc welding tooling for a rotary platform of an excavator proposed by the present invention;

[0026] Figure 5 The present invention is a three-dimensional enlarged structural schematic diagram of a servo drive assembly of a plasma arc welding tooling for an excavator rotary platform.

[0027] In the figure: 1. welding processing table; 2. mounting frame; 3. positioning table; 4. rotating shaft; 5. stepping motor; 6. worm; 7. worm wheel; 8. slide groove; 9. thread locking rod; 10. thread locking block; 11. anti-slip rotating cap; 12. lead screw; 13. sliding seat; 14. industrial camera; 15. electric push rod; 16. L-shaped connecting seat; 17. plasma arc welding gun body; 18. cooling fan; 19. guide slide; 20. support plate; 21. servo motor; 22. driving gear; 23. transmission gear; 24. industrial all-in-one machine. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1, reference Figure 1-3, a plasma arc welding tool for an excavator rotary platform, comprising a welding processing table 1, a mounting frame 2 fixedly connected to the top outer wall of the welding processing table 1, a positioning table 3, a positioning structure and a rotating structure of the excavator rotary platform;

[0030] In this embodiment, the rotating structure includes a rotating shaft 4 coaxially welded to the outer wall of the bottom of the positioning platform 3, a stepping motor 5 fixedly mounted on the outer wall of the bottom of the positioning platform 3, a worm 6 fixedly mounted on the output shaft of the stepping motor 5, and a worm wheel 7 fixedly mounted on the rotating shaft 4;

[0031] As a further improvement of this embodiment, the lower part of the rotating shaft 4 is connected to the top inner wall of the welding processing table 1 through a bearing, and the worm 6 and the worm wheel 7 are meshed with each other;

[0032] In this embodiment, the positioning structure of the excavator rotary platform includes a plurality of locking components arranged on the positioning platform 3 and distributed in an annular shape, and the locking components include a slide groove 8 opened on the top of the positioning platform 3, a threaded locking rod 9 rotatably installed in the slide groove 8, and a threaded locking block 10 threadedly connected to the threaded locking rod 9;

[0033] As a further improvement of this embodiment, the outer wall of the threaded locking block 10 is slidably connected to the inner wall of the slide groove 8, and the outer wall of one end of the threaded locking rod 9 is fixedly connected to an anti-slip rotating cap 11;

[0034] When the locking assembly is in use, the anti-skid rotating cap 11 drives the threaded locking rod 9 to rotate, and then under the limit of the slide groove 8, the threaded locking block 10 threadedly connected to the threaded locking rod 9 will make a linear motion;

[0035] In the specific implementation of this embodiment: firstly, the multiple annularly distributed locking components arranged on the positioning platform 3 can be used to position the excavator rotary platform from multiple angles, thereby effectively improving the positioning range and positioning effect of the welding tooling;

[0036] Secondly, the worm 6 is driven to rotate by the stepper motor 5, and then the worm wheel 7 meshing with the worm 6 drives the positioning platform 3 fixed on the top of the rotating shaft 4 to rotate, so that the welding angle of the excavator rotary platform after positioning can be flexibly adjusted, thereby achieving the effect of multi-angle comprehensive welding.

[0037] Example 2, reference Figure 1-5 This embodiment is optimized on the basis of the embodiment 1, specifically: a plasma arc welding tool for an excavator rotary platform, further comprising a plasma arc welding structure, the plasma arc welding structure comprising:

[0038] A lead screw 12 and a sliding seat 13, wherein the lead screw 12 is rotatably mounted on the upper portion of the mounting frame 2, and the sliding seat 13 is threadedly connected to the middle portion of the lead screw 12;

[0039] An industrial camera 14 is fixedly mounted on the bottom outer wall of the sliding seat 13, and an industrial integrated machine 24 is fixedly mounted on the top outer wall of the welding processing table 1;

[0040] An electric push rod 15 and an L-shaped connecting seat 16. The electric push rod 15 is fixedly mounted on the front outer wall of the sliding seat 13. The L-shaped connecting seat 16 is fixedly connected to the output end of the electric push rod 15.

[0041] The plasma arc welding gun body 17 and the cooling fan 18 are fixedly mounted on one side outer wall of the L-shaped connecting seat 16, and the cooling fan 18 is fixedly mounted on the bottom outer wall of the L-shaped connecting seat 16. The cooling fan 18 is driven to reciprocate in the horizontal direction by the sliding seat 13, so that a sufficiently uniform cooling effect can be achieved during the welding process.

[0042] A servo drive assembly, which includes a support plate 20 welded to the side wall of the mounting frame 2, a servo motor 21 fixedly mounted on the top outer wall of the support plate 20, a drive gear 22 fixedly sleeved on the output shaft of the servo motor 21, and a transmission gear 23 fixedly sleeved on one end of the lead screw 12 and meshing with the drive gear 22;

[0043] As a further improvement of this embodiment, a guide slide 19 is fixedly connected to the top outer wall of the slide seat 13, a slideway adapted to the guide slide 19 is provided on the upper part of the mounting frame 2, and the outer wall of the guide slide 19 is slidably connected to the inner wall of the slideway;

[0044] During the specific implementation of this embodiment: the servo motor 21 controls the driving gear 22 to rotate, and then the transmission gear 23 meshing with the driving gear 22 drives the lead screw 12 to rotate, and then the sliding seat 13 threadedly connected to the lead screw 12 reciprocates in the horizontal direction. At this time, the industrial camera 14 performs visual inspection of the welding area during the reciprocating motion, and transmits the image signal to the industrial all-in-one machine 24. The industrial all-in-one machine 24 controls the operation of the servo motor 21 and the electric push rod 15, and then can accurately control the linear welding distance and welding height of the plasma arc welding gun body 17, so as to achieve accurate visual welding effect, facilitate better adaptation to the welding requirements of different excavator rotary platforms, and improve welding efficiency.

[0045] The use process of the present invention is as follows: first, the multiple annularly distributed locking assemblies arranged on the positioning platform 3 can be used to position the excavator rotary platform from multiple angles, thereby effectively improving the positioning range and positioning effect of the welding tooling;

[0046] Secondly, the worm 6 is driven to rotate by the stepper motor 5, and then the worm wheel 7 meshing with the worm 6 drives the positioning platform 3 fixed on the top of the rotating shaft 4 to rotate, so that the welding angle of the excavator rotary platform after positioning can be flexibly adjusted, thereby achieving the effect of comprehensive welding at multiple angles;

[0047] Finally, the servo motor 21 will control the driving gear 22 to rotate, and then the transmission gear 23 meshing with the driving gear 22 will drive the lead screw 12 to rotate, and then the sliding seat 13 threadedly connected to the lead screw 12 will reciprocate in the horizontal direction. At this time, the industrial camera 14 will perform visual inspection of the welding area during the reciprocating motion, and transmit the image signal to the industrial all-in-one machine 24. The industrial all-in-one machine 24 controls the operation of the servo motor 21 and the electric push rod 15, and then can accurately control the linear welding distance and welding height of the plasma arc welding gun body 17, so as to achieve accurate visual welding effects, facilitate better adaptation to the welding requirements of different excavator rotary platforms, and improve welding efficiency.

[0048] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plasma arc welding tool for an excavator rotary platform, comprising a welding processing table (1), a mounting frame (2) fixedly connected to the top outer wall of the welding processing table (1), and a positioning table (3), characterized in that: It also includes the excavator slewing platform positioning structure, rotating structure and plasma arc welding structure; The rotating structure comprises a rotating shaft (4) coaxially welded to the outer wall of the bottom of the positioning platform (3), a stepping motor (5) fixedly mounted on the outer wall of the bottom of the positioning platform (3), a worm (6) fixedly mounted on the output shaft of the stepping motor (5), and a worm wheel (7) fixedly mounted on the rotating shaft (4); The excavator slewing platform positioning structure comprises a plurality of locking components arranged on a positioning platform (3) and distributed in a ring shape, and the locking components comprise a slide groove (8) opened on the top of the positioning platform (3), a threaded locking rod (9) rotatably installed in the slide groove (8), and a threaded locking block (10) threadedly connected to the threaded locking rod (9).

2. The plasma arc welding tool for the rotary platform of an excavator according to claim 1, characterized in that: The lower part of the rotating shaft (4) is connected to the top inner wall of the welding processing table (1) through a bearing, and the worm (6) and the worm wheel (7) are meshed with each other.

3. The plasma arc welding tool for the rotary platform of an excavator according to claim 1, characterized in that: The outer wall of the thread locking block (10) is slidably connected to the inner wall of the slide groove (8), and an anti-slip rotating cap (11) is fixedly connected to the outer wall of one end of the thread locking rod (9).

4. The plasma arc welding tool for the rotary platform of an excavator according to claim 1, characterized in that: The plasma arc welding structure comprises a lead screw (12) rotatably mounted on the upper part of a mounting frame (2), a sliding seat (13) threadedly connected to the middle part of the lead screw (12), and an industrial camera (14) fixedly mounted on the outer wall of the bottom of the sliding seat (13).

5. The plasma arc welding tool for the rotary platform of an excavator according to claim 1, characterized in that: The plasma arc welding structure also includes an electric push rod (15) fixedly mounted on the front outer wall of the sliding seat (13), an L-shaped connecting seat (16) fixedly connected to the output end of the electric push rod (15), a servo drive component, a plasma arc welding gun body (17) fixedly mounted on the outer wall of one side of the L-shaped connecting seat (16), and a cooling fan (18) fixedly mounted on the bottom outer wall of the L-shaped connecting seat (16).

6. The plasma arc welding tool for the rotary platform of an excavator according to claim 4, characterized in that: The top outer wall of the sliding seat (13) is fixedly connected with a guide sliding seat (19), the upper part of the mounting frame (2) is provided with a slideway matched with the guide sliding seat (19), and the outer wall of the guide sliding seat (19) is slidably connected with the inner wall of the slideway.

7. The plasma arc welding tool for the rotary platform of an excavator according to claim 5, characterized in that: The servo drive assembly comprises a support plate (20) welded to the side wall of the mounting frame (2), a servo motor (21) fixedly mounted on the top outer wall of the support plate (20), a driving gear (22) fixedly sleeved on the output shaft of the servo motor (21), and a transmission gear (23) fixedly sleeved on one end of the lead screw (12) and meshing with the driving gear (22).

8. The plasma arc welding tool for the rotary platform of an excavator according to claim 1, characterized in that: An industrial integrated machine (24) is fixedly mounted on the top outer wall of the welding processing table (1).

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