CN215280557U

CN215280557U - Robot welding group is to tongs

Info

Publication number: CN215280557U
Application number: CN202121758042.3U
Authority: CN
Inventors: 叶路路; 吕明来; 王帅; 席文强
Original assignee: Wuxi Evergreen Antai Intelligent Manufacturing Co ltd
Current assignee: Wuxi Evergreen Antai Intelligent Manufacturing Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-12-24
Anticipated expiration: 2031-07-29

Abstract

The utility model provides a robot welding group is to tongs, relates to angle steel welding group and to the device field. In the device, two ends of a fixed support are provided with fixed sleeves, a transmission shaft penetrates through the fixed sleeves, a bearing of the transmission shaft is connected with the fixed sleeves, a limiting piece is sleeved on the transmission shaft, one end of a buffer device is fixedly arranged on a first fixed support, and the other end of the buffer device corresponds to the limiting piece in position; the transmission shaft is connected with the driving end of the rotary driving device; a second fixed support is fixedly arranged at the bearing end of the transmission shaft, and the suction devices are respectively and fixedly connected with the second fixed support; the detection device is fixedly arranged on the second support and is electrically connected with the suction device. The device has the advantages that: the gripper is connected with the robot through the connecting flange, so that workpiece feeding, displacement and assembly are realized, and an automatic welding process is matched. The beneficial effects of continuous operation, labor cost reduction, production efficiency improvement and welding seam quality guarantee are realized.

Description

Robot welding group is to tongs

Technical Field

The utility model relates to an angle steel welding group is to the device field, especially relates to a robot welding group is to tongs.

Background

Because the angle steel quality is heavy, and the volume is great, artifical material loading group is to the precision low, and welding quality is unstable, and welding manual work intensity is big, and work efficiency is low, is difficult for guaranteeing the uniformity of welding seam simultaneously, is unfavorable for cooling quality's assurance. In order to solve the above problems, it is now necessary to design an automatic feeding and assembling device, which can feed and assemble a welding workpiece.

SUMMERY OF THE UTILITY MODEL

In order to realize that angle steel automatic weld group is continuous to the operation, reduce manual work intensity, improve production efficiency and guarantee the welding seam quality, the utility model discloses a following technical scheme:

a robot welding assembly gripper comprises a transmission shaft, a rotary driving device, a suction device, a limiting piece, a buffer device, a first fixed support and a detection device; the two ends of the fixed support are provided with fixed sleeves, the transmission shaft penetrates through the fixed sleeves, a bearing of the transmission shaft is connected with the fixed sleeves, the limiting piece is sleeved on the transmission shaft, one end of the buffer device is fixedly arranged on the first fixed support, and the other end of the buffer device corresponds to the limiting piece in position; the transmission shaft is connected with the driving end of the rotary driving device; a second fixed support is fixedly arranged at the bearing end of the transmission shaft, and the suction devices are respectively and fixedly connected with the second fixed support; the detection device is fixedly arranged on the second support and is electrically connected with the suction device.

The transmission shaft penetrates through the fixing hole and is fixedly connected with the fixing hole.

Specifically, suction means is electrophoresis magnet, and electrophoresis magnet disposes controller and power supply, and electrophoresis magnet passes through bolt and nut and is connected with second fixed bolster, and the cover is equipped with the spring on the bolt.

Specifically, the detection device is a photoelectric switch, and the photoelectric switch and the electrophoretic magnet controller are electrically connected with the plc respectively.

Specifically, the driving device is a swing air cylinder, and the transmission shaft is connected with the driving end of the swing air cylinder.

Specifically, the buffer device is fixedly provided with a bolt and an oil pressure buffer.

Specifically, a bolt and an oil buffer are fixedly arranged on the limiting plate.

To sum up, the utility model discloses the device has following advantage:

1. the gripper is connected with the robot through the connecting flange, so that workpiece feeding, displacement and assembly are realized, and an automatic welding process is matched. The continuous operation is realized, the labor cost is reduced, the production efficiency is improved, and the quality of the welding seam is ensured.

2. The photoelectric switch is arranged in the gripper and used in cooperation with the electrophoresis magnet, so that the position of the workpiece can be effectively determined, and the reliability of workpiece gripping is guaranteed;

3. the gripper is also provided with a limiting buffer device which limits the swing position of the cylinder, and the kinetic energy generated by stopping the limiting sheet is converted into compressed potential energy to be absorbed through in-place oil pressure, so that the situation that the position is inaccurate due to impact and vibration generated in the in-place process is avoided.

Drawings

FIG. 1 is a schematic diagram of a robot welding set-up gripper configuration;

FIG. 2 is a schematic structural diagram of a first fixing bracket in a welding pair gripper of a robot;

reference numerals: 1. a connecting flange; 2. a drive shaft; 3. a first fixed bracket; 4. a crossed roller bearing; 5. a second fixed bracket; 6. photoelectric switch 7, electrophoretic magnet; 8. a spring; 9. a swing cylinder; 10. a limiting sheet; 11. a hydraulic shock absorber; 12, limiting grooves; 13 fixing the sleeve;

Detailed Description

The present invention will be further described with reference to fig. 1 to 2.

A robot welding group is to tongs, includes transmission shaft 2, rotation driving device, first fixed bolster 3, suction means, spacing piece 10, buffer. In order to prescribe a limit to and fix the position of each spare part in the tongs, so set up first fixed bolster 3 in this tongs, first fixed bolster 3 is the cuboid support, has seted up spacing groove 12 on the cuboid support, and both ends dispose fixed sleeve 13. The two ends of the transmission shaft 2 penetrate through the fixed sleeve 13, and the outer rings of the crossed roller bearings 4 at the two ends are connected with the fixed sleeve 13, so that the first fixed support 3 is fixedly connected with the transmission shaft 2. In order to realize the function of grabbing the workpiece and adjusting the position of the grabbed workpiece, suction devices are installed at both ends of the transmission shaft 2. The inner bearing end of the crossed roller bearing 4 is connected with the second fixing support 5, the suction device is an electro-permanent magnet, the electrophoretic magnet 7 is connected with the second fixing support 5 through bolts and nuts, and the electrophoretic magnet 7 is provided with a special controller and a distribution box and is used for specially controlling the on-off of the electrophoretic magnet 7. In order to guarantee the reliability of grabbing the workpiece, the impact on the transmission shaft 2 in the process of taking and assembling is reduced, so that the spring 8 is sleeved on the bolt connected with the electrophoresis magnet 7, and the impact is reduced through the spring 8. In order to ensure that the electrophoretic magnet 7 can accurately suck the workpiece and accurately position the position of the workpiece, the photoelectric switch 6 is additionally arranged, the photoelectric switch 6 is used for sensing the position of the workpiece to be grabbed, the photoelectric switch 6 and the electrophoretic magnet 7 are respectively electrically connected with the plc, when the photoelectric switch 6 detects that the workpiece is in a detection range, the photoelectric switch 6 sends a signal to the plc, and then the plc outputs an instruction to the electromagnet controller to electrify the electrophoretic magnet 7. In order to control the rotation angle of the transmission shaft 2 within a limited range, a limiting piece 10 is mounted on the transmission shaft 2, and the limiting piece 10 is sleeved on the transmission shaft 2 and is fixedly connected with the transmission shaft 2 through a key and a jackscrew. The top end of the limiting piece 10 is fixedly provided with a screw and the hydraulic buffer 11, the positions of the screw and the hydraulic buffer 11 are parallel to each other, and the action directions of the screw and the hydraulic buffer are vertical to the limiting piece 10. In order to limit the position of the limiting piece 10 and prevent the limiting piece 10 from being damaged by impact when being shifted, a limiting buffer device is fixedly mounted on the first fixing support 3. The limiting buffer device is a rectangular iron sheet with a bending angle, one end of the rectangular iron sheet is fixedly installed in the limiting groove 12, the other end of the rectangular iron sheet is located above the transmission shaft 2, and a screw and an oil buffer 11 are fixedly installed at the other end of the rectangular iron sheet. The position where the screw and the hydraulic shock absorber 11 are provided corresponds to the position of the stopper piece 10. When the transmission shaft 2 drives the limiting piece 10 to rotate, the maximum rotation angle is 45 degrees, namely after the rotation is 45 degrees, the limiting piece 10 touches the screw on the limiting buffer device and the oil buffer 11. In order to enable the gripper to rotate in the grabbing process, the swing cylinder 9 is fixedly connected with the transmission shaft 2, and the rotating function is achieved. The transmission shaft 2 is connected with the driving end of a swing cylinder 9, and the swing cylinder 9 is fixedly arranged in a limiting groove 12. In order to facilitate the connection of the gripper with an external robot arm, a connecting flange is fixedly mounted on the transmission shaft 2. The fixing holes are formed in the connecting flange 1, the transmission shaft 2 penetrates through the fixing holes and is fixedly connected with the transmission shaft 2, and in order to enable the connecting flange 1 to be connected with the hand grab more stably and firmly, the bottom end of the connecting flange 1 is fixedly connected with the limiting groove 12 of the first fixing support 3.

The working process of the gripper comprises the following steps: the swinging cylinder 9 outputs torque to the crossed roller bearing 4 to realize the displacement of the gripper, the photoelectric switch 6 senses the position of the workpiece to be confirmed, and the electrophoretic magnet 7 sucks the workpiece. In addition, the connecting flange 1 is used for connecting the gripper with an external robot, so that the function of welding the workpiece group is realized. Wherein the process of butt welding is as follows: the robot drives the gripper, grabs the welding parts, places the parts on another part with welding through the gripper, positions are set, spot welding of the welding parts is completed by matching with the welding robot, and the pairing function is completed.

As can be seen from the above description, the device has the following advantages:

It should be understood that the above detailed description of the present invention is only for illustrative purposes and is not limited to the technical solutions described in the embodiments of the present invention. It will be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.

Claims

1. A robot welding assembly gripper is characterized by comprising a transmission shaft, a rotary driving device, a suction device, a limiting piece, a buffering device, a first fixing support and a detection device; the two ends of the fixed support are provided with fixed sleeves, the transmission shaft penetrates through the fixed sleeves, a bearing of the transmission shaft is connected with the fixed sleeves, the limiting piece is sleeved on the transmission shaft, one end of the buffer device is fixedly arranged on the first fixed support, and the other end of the buffer device corresponds to the limiting piece in position; the transmission shaft is connected with the driving end of the rotary driving device; a second fixed support is fixedly installed at the bearing end of the transmission shaft, and the suction devices are respectively and fixedly connected with the second fixed support; the detection device is fixedly arranged on the second fixing support and is electrically connected with the suction device.

2. The robot welding set pair of tongs of claim 1, further comprising a connecting flange, wherein a fixing hole is formed in the connecting flange, and the transmission shaft penetrates through the fixing hole and is fixedly connected with the fixing hole.

3. The robot welding set pair of tongs of claim 1, characterized in that the suction device is an electrophoresis magnet, the electrophoresis magnet is provided with a controller and a power supply, the electrophoresis magnet is connected with the second fixed support through a bolt and a nut, and a spring is sleeved on the bolt.

4. The robotic welding set up gripper of claim 3, further comprising a detection device that is a photoelectric switch, wherein the photoelectric switch and the electrophoretic magnet controller are electrically connected to the plc, respectively.

5. The robot welding set up tongs of claim 1, wherein the drive device is a swing cylinder, and the drive shaft is connected to a drive end of the swing cylinder.

6. The robot welding set pair of tongs of claim 1, wherein bolts and hydraulic buffers are fixedly mounted on the buffer means.

7. The robot welding set pair of tongs of claim 1, characterized in that a bolt and a hydraulic buffer are fixedly mounted on the stop plate.