CN110524144B

CN110524144B - Positioner for robot welding

Info

Publication number: CN110524144B
Application number: CN201910767079.3A
Authority: CN
Inventors: 沈鸿; 陆安军; 张勇; 王学东
Original assignee: Anhui Puchuang Rail Vehicle Equipment Co Ltd
Current assignee: Anhui Puchuang Rail Vehicle Equipment Co ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2021-06-04
Anticipated expiration: 2039-08-20
Also published as: CN110524144A

Abstract

The invention discloses a robot welding positioner which comprises a base, a first fixing seat and a second fixing seat, wherein supporting legs are arranged at four corners of the bottom of the base, the first fixing seat is arranged at the top of the base, a rotating shaft is arranged in an inner cavity of the first fixing seat, one end of the rotating shaft is connected with one side of the inner wall of the first fixing seat through a bearing, and the other end of the rotating shaft penetrates through the other side wall of the first fixing seat and is fixedly connected with a transmission shaft of a first motor. The fixed workpiece can rotate transversely and longitudinally through the driving of the first motor and the second motor, so that the rotation of each angle is met, meanwhile, the third motor can drive the workpiece to rotate, the clamped part is released before, and the shielded area can rotate again, so that the change of each angle and each part can be realized, the welding requirement of the welding robot is met, the maximum convenience is provided for welding, and the welding robot is suitable for wide popularization and use.

Description

Positioner for robot welding

Technical Field

The invention relates to a position changing tool, in particular to a position changing machine for robot welding.

Background

Present when production railcar accessory, need weld the accessory to at the welded in-process, need use welding robot, welding robot can carry out the welding of different angles by automatic angle change, but when welded work piece is fixed by the mounting, the mounting can shelter from the accessory part region of treating the welding, thereby lead to the angle less, make welding robot welding unchangeable, in order to solve the unchangeable problem of welding. Therefore, we propose a positioner for robot welding.

Disclosure of Invention

The invention aims to provide a positioner for robot welding, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a positioner for robot welding comprises a base, a first fixing seat and a second fixing seat, wherein supporting legs are arranged at four corners of the bottom of the base, the first fixing seat is arranged at the top of the base, a rotating shaft is arranged in an inner cavity of the first fixing seat, one end of the rotating shaft is connected with one side of the inner wall of the first fixing seat through a bearing, the other end of the rotating shaft penetrates through the other side wall of the first fixing seat and is fixedly connected with a transmission shaft of a first motor, the second fixing seat is sleeved on the outer wall of the rotating shaft, first electro-hydraulic push rods are arranged on the outer walls of the two sides of the second fixing seat, piston rods of the first electro-hydraulic push rods penetrate through the outer wall of the second fixing seat and are connected with a first clamping plate, a second motor is arranged at the bottom of the base, the second motor penetrates through the base and is fixedly connected with the middle of the bottom of a first rotary, the top of the second electro-hydraulic push rod is provided with a fixed block, the top of the fixed block is connected with a sliding cover, the fixed block is connected with the sliding cover through an I-shaped sliding block, the bottom of the sliding cover is provided with a first sliding groove matched with the top of the I-shaped sliding block, and the surface of the fixed block is provided with an arc-shaped sliding groove matched with the bottom of the I-shaped sliding block.

As a preferred embodiment of the invention, a placing groove is formed in the bottom of an inner cavity of the second fixing seat, a third motor is installed in the inner cavity of the placing groove, a second rotating disc is connected to the outer end of a transmission shaft of the third motor, support plates are installed on two sides of the second rotating disc, a third electro-hydraulic push rod is fixedly installed on the outer wall of each support plate, and a piston rod of the third electro-hydraulic push rod penetrates through each support plate and is connected with a second clamping plate.

As a preferred embodiment of the present invention, the sliding cover is a metal sliding cover.

As a preferred embodiment of the present invention, the first motor is fixed to the top of the first turntable by a support block.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the positioner for robot welding, the fixed workpiece can rotate transversely and longitudinally under the driving of the first motor and the second motor, so that the rotation at each angle is met, meanwhile, the workpiece can be driven to rotate by the third motor, so that the clamped part is released, the shielded area can rotate again, the change at each angle and each part can be realized, the welding requirement of the welding robot is met, and the greatest convenience is provided for welding.

2. According to the positioner for robot welding, the sliding cover is arranged at the top of the second fixing seat in the welding process, so that the influence of sparks generated by the welding robot on the line of the positioner can be prevented.

3. According to the positioner for robot welding, the sliding cover can slide to two sides of equipment under the action of the I-shaped sliding block, so that the size is reduced, and the damage phenomenon caused by mistaken collision is avoided.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic overall structure diagram of a positioner for robot welding according to the present invention;

FIG. 2 is a schematic structural view of a second fixing seat of the positioner for robot welding according to the invention;

FIG. 3 is a schematic view of the connection structure of the sliding cover and the fixing block of the positioner for robot welding according to the present invention.

In the figure: 1. a base; 2. a support leg; 3. a first turntable; 4. a first fixed seat; 5. a second fixed seat; 6. a first motor; 7. a rotating shaft; 8. a bearing; 9. a first electro-hydraulic push rod; 10. a first splint; 11. a second motor; 12. a second electro-hydraulic push rod; 13. a fixed block; 14. a sliding cover; 15. an I-shaped slider; 16. a placement groove; 17. a third motor; 18. a second turntable; 19. a support plate; 20. a third electro-hydraulic push rod; 21. a second splint; 22. a first chute; 23. an arc chute.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: a positioner for robot welding comprises a base 1, a first fixing seat 4 and a second fixing seat 5, wherein supporting legs 2 are mounted at four corners of the bottom of the base 1 and supported by the supporting legs 2 to enable the robot to have corresponding height, the first fixing seat 4 is mounted at the top of the base 1, a rotating shaft 7 is mounted in an inner cavity of the first fixing seat 4, the rotating shaft 7 can drive the first fixing seat 4 to rotate, one end of the rotating shaft 7 is connected with one side of the inner wall of the first fixing seat 4 through a bearing 8, the other end of the rotating shaft 7 penetrates through the other side wall of the first fixing seat 4 and is fixedly connected with a transmission shaft of a first motor 6, the second fixing seat 5 is sleeved on the outer wall of the rotating shaft 7, first electro-hydraulic push rods 9 are mounted on the outer walls of two sides of the second fixing seat 5, piston rods of the first electro-hydraulic push rods 9 penetrate through the outer wall of the second fixing, a second motor 11 is installed at the bottom of the base 1, and the second motor 11 penetrates through the base 1 and is fixedly connected with the middle of the bottom of the first rotary disc 3.

In this embodiment, the two sides of the top of the base 1 are both provided with a second electro-hydraulic push rod 12, the top of the second electro-hydraulic push rod 12 is provided with a fixed block 13, the top of the fixed block 13 is connected with a sliding cover 14, the sliding cover 14 can prevent the damage of sparks generated during welding to the equipment line, the bottom of the inner cavity of the second fixed seat 5 is provided with a placing groove 16, the inner cavity of the placing groove 16 is provided with a third motor 17, the outer end of a transmission shaft of the third motor 17 is connected with a second rotating disc 18, the two sides of the second rotating disc 18 are both provided with support plates 19, the outer wall of each support plate 19 is fixedly provided with a third electro-hydraulic push rod 20, a piston rod of the third electro-hydraulic push rod 20 penetrates through each support plate 19 and is connected with a second clamp plate 21, the second clamp plate 21 can clamp the workpiece, the position of the workpiece is changed under the driving of, the bottom of the sliding cover 14 is provided with a first sliding groove 22 matched with the top of the I-shaped sliding block 15, the surface of the fixed block 13 is provided with an arc-shaped sliding groove 23 matched with the bottom of the I-shaped sliding block 15, the sliding cover 14 can slide by the first sliding groove 22 and the arc-shaped sliding groove 23, so that the sliding cover 14 can be received by two sides of the device, the sliding cover 14 is a metal sliding cover, the metal sliding cover cannot be damaged by sparks, and the first motor 6 is fixed to the top of the first rotating disc 3 through a support block.

When the positioner for robot welding is used, a workpiece to be welded is firstly placed in an inner cavity of a second fixed seat 5 to be placed at the top of a second rotary table 18, then a first electro-hydraulic push rod 9 is utilized to drive a first clamping plate 10 and a third electro-hydraulic push rod 20 to drive a second clamping plate 21 to simultaneously clamp the workpiece, then the second fixed seat 5 and the first rotary table 3 are respectively driven to rotate by a first motor 6 and a second motor 11 in the welding process, so that the workpiece rotates transversely and longitudinally to adapt to the welding angle, when the workpiece needs to be displaced, the workpiece is driven to rotate by loosening the first clamping plate 10 and then starting a third motor 17, then the clamped part is released by clamping by the first clamping plate 10, then the workpiece rotates transversely and longitudinally to weld in an omnibearing manner, and the greatest convenience is provided for welding, in the welding process, the sliding cover 14 can prevent the generated sparks from influencing the circuit of the equipment, and when the sliding cover is not used, the I-shaped sliding block 15 slides in the first sliding groove 22 and the arc-shaped sliding groove 23 on the inner wall of the sliding cover 14, so that the sliding cover 14 can be collected on two sides of the equipment, the size is reduced, and the phenomenon of damage caused by mistaken collision is avoided.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a machine of shifting is used in welding of robot, includes base (1), first fixing base (4) and second fixing base (5), its characterized in that: the supporting legs (2) are installed at four corners of the bottom of the base (1), a first fixing seat (4) is installed at the top of the base (1), a rotating shaft (7) is installed in an inner cavity of the first fixing seat (4), one end of the rotating shaft (7) is connected with one side of the inner wall of the first fixing seat (4) through a bearing (8), the other end of the rotating shaft (7) penetrates through another side wall of the first fixing seat (4) and is fixedly connected with a transmission shaft of a first motor (6), a second fixing seat (5) is sleeved on the outer wall of the rotating shaft (7), first electro-hydraulic push rods (9) are installed on the outer walls of two sides of the second fixing seat (5), piston rods of the first electro-hydraulic push rods (9) penetrate through the outer wall of the second fixing seat (5) and are connected with a first clamping plate (10), a second motor (11) is installed at the bottom, the second motor (11) penetrates through the base (1) and is fixedly connected with the middle of the bottom of the first rotary table (3), second electro-hydraulic push rods (12) are mounted on two sides of the top of the base (1), a fixed block (13) is mounted on the top of each second electro-hydraulic push rod (12), a sliding cover (14) is connected to the top of each fixed block (13), the fixed blocks (13) and the sliding covers (14) are connected through I-shaped sliding blocks (15), a first sliding chute (22) matched with the tops of the I-shaped sliding blocks (15) is formed in the bottom of each sliding cover (14), an arc-shaped sliding chute (23) matched with the bottom of each I-shaped sliding block (15) is formed in the surface of each fixed block (13), a placing groove (16) is formed in the bottom of an inner cavity of the second fixed seat (5), a third motor (17) is mounted in the inner cavity of each placing groove (16), and a second rotary table (18) is connected to, both sides of the second turntable (18) are provided with support plates (19), the outer wall of each support plate (19) is fixedly provided with a third electro-hydraulic push rod (20), and a piston rod of each third electro-hydraulic push rod (20) penetrates through each support plate (19) and is connected with a second clamping plate (21).

2. The positioner for robot welding of claim 1, characterized in that: the sliding cover (14) is a metal sliding cover.

3. The positioner for robot welding of claim 1, characterized in that: the first motor (6) is fixed at the top of the first turntable (3) through a support block.