CN211589031U

CN211589031U - Robot welding system

Info

Publication number: CN211589031U
Application number: CN201921621303.XU
Authority: CN
Inventors: 樊启永; 廖小吉; 王凤华; 赵辉
Original assignee: TANGSHAN INDUSTRIAL VOCATIONAL TECHNICAL COLLEGE
Current assignee: TANGSHAN INDUSTRIAL VOCATIONAL TECHNICAL COLLEGE
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-29
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a robot welding system, which comprises a welding robot, a welding gun arranged at the tail end of the welding robot, a welding positioner used for clamping the rotation of a welded part and a slide rail assembly used for bearing the welding robot to do reciprocating linear motion; the sliding rail assembly comprises a sliding rail component, a sliding seat component in sliding fit with the sliding rail component and a sliding driving component for driving the sliding seat component to slide; the sliding rail assembly comprises a sliding rail seat and at least two mutually parallel linear sliding rails arranged on the sliding rail seat; the sliding seat assembly comprises a sliding table for supporting the welding robot and a sliding block which is fixed at the bottom of the sliding table and is in sliding fit with the linear sliding rail; the sliding driving assembly comprises a rack fixed on the sliding rail seat along the longitudinal direction, a driving motor fixed on the sliding table and a gear fixed on an output shaft of the driving motor and meshed with the rack; the utility model discloses a welding system of robot drives the rotation of robot walking cooperation machine of shifting through the robot slip table and realizes the welding.

Description

Robot welding system

Technical Field

The utility model relates to an equipment is used in welding of robot relates to the welding technology field.

Background

With the widespread use of robots in industry, more and more factories are beginning to use robots to weld large workpieces made of sheet materials. Because the work piece is big, the manual group is to, the welding process is very loaded down with trivial details, also can't overturn the work piece. Manual and manual welding can not be achieved quickly and accurately, welding work is generally carried out by matching a position changing machine with a robot at present, namely, a workpiece to be welded is fixed by a clamp on the position changing machine, and the position of the workpiece is adjusted by the position changing machine, so that the workpiece reaches a proper welding posture, and welding requirements of the robot are met.

The welding robot operates according to a preset program, the robot clamps the welding gun to reach the initial end of the welding line to start welding, and the positioner can rotate the workpiece in time in the welding process, so that the welding line on the workpiece is beneficial to the welding operation of the robot.

The utility model provides a welding operation by welding workpiece suitable for length is longer, realizes the welding through the rotation of robot slip table drive robot walking cooperation machine of shifting.

Disclosure of Invention

The utility model discloses a robot welding system, including welding robot, set up in welding robot terminal welder, be used for centre gripping by welding piece pivoted positioner and bear the weight of the welding robot is reciprocating linear motion's slide rail assembly;

the sliding rail assembly comprises a sliding rail component, a sliding seat component in sliding fit with the sliding rail component and a sliding driving component for driving the sliding seat component to slide;

the sliding rail assembly comprises a sliding rail seat and at least two linear sliding rails which are arranged on the sliding rail seat and are parallel to each other; the sliding seat assembly comprises a sliding table for supporting the welding robot and a sliding block which is fixed at the bottom of the sliding table and is in sliding fit with the linear sliding rail; the sliding driving assembly comprises a rack which is longitudinally fixed on the sliding rail seat, a driving motor which is fixed on the sliding table and a gear which is fixed on an output shaft of the driving motor and is meshed with the rack.

Furthermore, the sliding rail assembly also comprises a locking mechanism for locking the relative position of the sliding seat component and the sliding rail component; the locking mechanism comprises a positioning block fixed on the slide rail seat, a locking cylinder fixed on the sliding table and a locking pin fixed at the outer end of a piston rod of the locking cylinder; the positioning block is provided with a pin hole used for being matched with the locking pin.

Furthermore, limiting plates are fixed at two ends of the sliding rail seat, and buffering pieces are arranged on one sides, facing the sliding table, of the limiting plates.

Further, the guide rail seat is formed by sequentially combining a plurality of guide rail seat sections; the guide rail seat section comprises two side plates, a longitudinal beam and a reinforcing rib, wherein the longitudinal beam and the reinforcing rib are integrally formed between the two side plates; the linear guide rail is fixedly arranged on the top of the side plate.

Furthermore, the locating piece has photoelectric type proximity switch through mounting bracket fixed mounting, the slip table bottom is equipped with the anti-dazzling screen that uses with photoelectric type proximity switch cooperation.

Furthermore, the bottom of the sliding table is provided with a semicircular dust cover which is covered on the gear.

The utility model has the advantages that: the utility model discloses a welding system of robot is applicable to the longer welding jobs by the weldment work piece of length, drives the rotation of robot walking cooperation machine of shifting through the robot slip table and realizes the welding.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of a stage of the guide rail seat according to the present invention;

fig. 3 is a schematic view of the sliding seat assembly of the present invention;

fig. 4 is a cross-sectional view of the locking mechanism of the present invention.

The welding robot comprises a 1-slide rail assembly 2-slide seat assembly 3-welding gun 4-welding robot 5-welding positioner 11-linear slide rail 12-reinforcing rib 13-mounting frame 14-positioning block 15-longitudinal beam 16-buffer piece 17-limiting plate 18-connecting plate 19-rack 21-sliding table 22-sliding block 23-dust cover 24-gear 25-driving motor 26-guide seat 27-shading sheet 28-cylinder 29-locking pin.

Detailed Description

Fig. 1 is a schematic structural diagram of the present invention, as shown in the figure, including a welding robot 4, a welding gun 3 disposed at the end of the welding robot 4, a welding positioner 5 for clamping the welded part to rotate, and a slide rail assembly for carrying the welding robot 4 to make reciprocating linear motion; the welding robot 4 can adopt a multi-axis industrial welding robot 4 with any structure in the prior art, and can drive a welding tongs to move according to a preset path for welding; the welding positioner 5 also adopts the structure of the welding positioner 5 in the prior art, and generally comprises a worktable rotating mechanism and a turnover mechanism, the workpiece fixed on the worktable can achieve the required welding and assembly angle through the lifting, turnover and rotation of the worktable, and the revolving of the worktable is variable-frequency stepless speed regulation, so that the satisfactory welding speed can be obtained. Therefore, the structures of the welding robot 4 and the positioner in this embodiment are the prior art, and are not described herein. The slide rail assembly can drive 4 translations of welding robot to the operating position of adjustment welding robot 4, thereby the longer by welding workpiece of adaptation length.

The sliding rail assembly comprises a sliding rail component 1, a sliding seat component 2 in sliding fit with the sliding rail component 1 and a sliding driving component for driving the sliding seat component 2 to slide;

as shown in fig. 2, the slide rail assembly 1 includes a slide rail seat and at least two mutually parallel linear slide rails 11 disposed on the slide rail seat; the sliding seat assembly 2 comprises a sliding table 21 for supporting the welding robot 4 and a sliding block 22 fixed at the bottom of the sliding table 21 and in sliding fit with the linear sliding rail 11; as shown in fig. 3, the slide driving assembly includes a rack 19 fixed to the rail base in the longitudinal direction, a driving motor 25 fixed to the slide table 21, and a gear 24 fixed to an output shaft of the driving motor 25 and engaged with the rack 19. The welding robot 4 is fixed on the sliding table 21 through fasteners such as bolts, two pairs of dovetail-shaped sliding blocks 22 which are in sliding fit with the two linear sliding rails 11 are arranged at the bottom of the sliding table 21, a driving motor 25 is fixedly arranged on the sliding table 21, an output shaft of the driving motor extends downwards out of the sliding table 21 and is fixedly provided with a gear 24, and the gear 24 and the rack 19 are mutually fixed; when the driving motor 25 drives the gear 24 to rotate, the whole sliding table 21 slides along the linear slide rail 11, and the load-bearing welding robot 4 slides to a preset position.

In a preferred embodiment, the sliding rail assembly further comprises a locking mechanism for locking the relative position of the sliding seat assembly 2 and the sliding rail assembly 1; as shown in fig. 4, the locking mechanism includes a positioning block 14 fixed to the slide rail seat, a locking cylinder 28 fixed to the slide table 21, and a locking pin 29 fixed to an outer end of a piston rod of the locking cylinder 28; the positioning block 14 is provided with a pin hole for matching with the locking pin 29; a guide seat 26 is fixedly arranged at the bottom of the sliding table 21, the guide seat 26 is provided with a rectangular guide hole, a rectangular block-shaped locking pin 29 is positioned in the guide hole and can slide up and down along the guide hole, the number of the locking mechanisms is determined according to the number of welding stations of the welding robot 4, in the embodiment, the number of the welding stations of the welding robot is two, and the two welding stations are respectively positioned at two ends of the linear slide rail 11, so that a positioning block 14 needs to be respectively fixedly arranged at the head end and the tail end of the linear slide rail 11; when the sliding table 21 slides to the end of the linear sliding rail 11, the piston rod of the locking cylinder 28 drives the locking pin 29 to extend downward and enter and exit the pin hole of the positioning block 14, so as to lock the position of the sliding table 21, thereby ensuring that the sliding table 21 is fixed when the welding robot 4 performs welding, and improving the welding precision.

In a preferred embodiment, both ends of the slide rail seat are fixed with a limiting plate 17, one side of the limiting plate 17 facing the sliding table 21 is provided with a buffer 16, as shown in fig. 2, the limiting plate 17 is fixedly installed on both side surfaces of the end of the slide rail seat, a rubber cylinder is used as the buffer 16 and fixed on the limiting plate 17, and when the sliding table 21 moves to the limit position, the rubber cylinder abuts against the buffer 16, so as to limit the sliding strip to continuously slide.

In a preferred embodiment, the rail seat is formed from a plurality of rail seat segments in sequential combination; the guide rail seat section comprises two side plates, a longitudinal beam 15 and a reinforcing rib 12 which are integrally formed between the two side plates; the linear guide rail is fixedly arranged on the top of the side plate; as shown in figures 1 and 2, a plurality of guide rail seat stages are sequentially connected end to form the guide rail seats, the adjacent two guide rail seat stages are mutually fixed through a connecting plate 18, the connecting plate 18 is connected between the side walls of the adjacent two guide rail seat stages through bolts, and the guide rail seat structure assembled in a split mode is convenient for adjusting the length of the guide rail seats according to actual production needs.

In a preferred embodiment, the positioning block 14 is fixedly provided with a photoelectric proximity switch through the mounting frame 13, the bottom of the sliding table 21 is provided with a light shielding sheet 27 used in cooperation with the photoelectric proximity switch, and after the sliding table 21 moves to the end of the guide rail seat, and the light shielding sheet 27 shields the photoelectric proximity switch, the controller of the driving motor 25 receives a signal of the proximity switch, stops rotating, and simultaneously, the cylinder 28 drives the positioning pin to be inserted into the pin hole of the positioning block 14 to lock the position of the sliding table 21.

In a preferred embodiment, a semicircular dust cover 23 is disposed at the bottom of the sliding table 21 and covers the gear 24, as shown in fig. 3, the semicircular dust cover 23 can improve the working environment of the gear 24 to some extent, and improve the service life and reliability of the gear 24.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A robotic welding system, characterized by: the welding robot comprises a welding robot, a welding gun arranged at the tail end of the welding robot, a welding positioner used for clamping a welded part to rotate and a slide rail assembly used for bearing the welding robot to do reciprocating linear motion;

2. The robotic welding system of claim 1, wherein: the sliding rail assembly also comprises a locking mechanism for locking the relative position of the sliding seat component and the sliding rail component; the locking mechanism comprises a positioning block fixed on the slide rail seat, a locking cylinder fixed on the sliding table and a locking pin fixed at the outer end of a piston rod of the locking cylinder; the positioning block is provided with a pin hole used for being matched with the locking pin.

3. The robotic welding system of claim 2, wherein: limiting plates are fixed at two ends of the sliding rail seat, and buffering pieces are arranged on one sides, facing the sliding table, of the limiting plates.

4. The robotic welding system of claim 3, wherein: the locating piece has photoelectric type proximity switch through mounting bracket fixed mounting, the slip table bottom is equipped with the anti-dazzling screen that uses with photoelectric type proximity switch cooperation.

5. The robotic welding system of claim 4, wherein: and a semicircular dust cover which is covered on the gear is arranged at the bottom of the sliding table.