CN215238840U

CN215238840U - Clamp for robot welding

Info

Publication number: CN215238840U
Application number: CN202120251322.9U
Authority: CN
Inventors: 周炎时; 杨亚非; 周龙根; 毛国珍
Original assignee: Suzhou Longshihuida Commercial Equipment Co ltd
Current assignee: Suzhou Longshihuida Commercial Equipment Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-12-21
Anticipated expiration: 2031-01-28

Abstract

The application relates to a be used for welded anchor clamps of robot, it includes the fixed station, and the swivelling joint has the mounting disc on the fixed station, and sliding connection has two parallel splint on the mounting disc. The application has the effect of improving the defect that the welding gun of the welding robot is difficult to accurately position.

Description

Clamp for robot welding

Technical Field

The application relates to the field of welding fixtures, in particular to a fixture for robot welding.

Background

Industrial robots are versatile, reprogrammable, automatically controlled manipulators with three or more programmable axes, which are widely used in the field of industrial automation. Industrial robots are suitable for different purposes depending on the tool to which the mechanical interface of the last axis of the industrial robot is connected. The welding robot is obtained by mounting a welding gun or a welding clamp on a tail shaft of the industrial robot through a flange.

The welding robot is typically an articulated robot, which is composed of a plurality of robot arms, which are typically driven by motors. Because the home range of arm is big, makes welding robot's workspace great, and the removal of arm is controlled by the computer usually, therefore welding robot's welding quality is stable, is favorable to improving production efficiency, reduces staff's the work degree of difficulty and intensity of labour.

In view of the above-mentioned related art, the inventor believes that, when a workpiece with a small size is welded, since the size of the mechanical arm of the welding robot is large, when the position between the workpiece and the welding gun needs to be changed in a small range, the position of the welding gun is difficult to be accurately positioned, and there is a defect that the operation difficulty is high.

SUMMERY OF THE UTILITY MODEL

In order to improve the defect that a welding gun of a welding robot is difficult to accurately position, the application provides a clamp for robot welding.

The application provides a be used for welded anchor clamps of robot to adopt following technical scheme:

the utility model provides a be used for welded anchor clamps of robot, includes the fixed station, swivelling joint has the mounting disc on the fixed station, sliding connection has two parallel splint on the mounting disc.

Through adopting above-mentioned technical scheme, before welding small-size work piece, place the work piece on the mounting disc, slide two splint, make splint press from both sides the work piece tightly, among the welding process, when the distance between work piece and the welder needs the adjustment of miniaturation, the removal through splint makes the work piece translation, or the angle of rotation adjustment work piece through the mounting disc, the setting up of splint and mounting disc makes the miniaturely displacement of small-size work piece can obtain convenient and accurate adjustment, the welder that has improved welding robot is difficult to the defect of accurate positioning.

Optionally, a second chain wheel is coaxially connected to the mounting disc, a motor is arranged on the fixed table, a first chain wheel is coaxially connected to an output shaft of the motor, and a chain is sleeved on the first chain wheel and the second chain wheel.

Through adopting above-mentioned technical scheme, during the starter motor, first sprocket rotates along with the output shaft of motor, drives the chain and rotates, and the second sprocket rotates along with the chain, drives the mounting disc and rotates to drive splint and rotate, make the angle between work piece and the welder change, the setting up of motor makes the rotation of mounting disc be convenient for control, makes the location of work piece more accurate.

Optionally, the fixed table is provided with two supporting plates, the supporting plates are provided with mounting plates, and the motor is fixed on the mounting plates through bolts.

Through adopting above-mentioned technical scheme, the setting of backup pad and mounting panel is convenient for the installation and the fixing of motor, fixes the motor through the bolt for convenient the change when the motor damages.

Optionally, set up the sliding tray of two parallels on the mounting disc, be equipped with two sliding blocks on the splint, sliding block sliding connection is in the sliding tray.

Through adopting above-mentioned technical scheme, the setting up of two sliding trays and two sliding blocks makes splint obtain stable support, is convenient for slide splint on the mounting disc.

Optionally, the cross-sections of the sliding groove and the sliding block are both dovetail-shaped, and the sliding groove is a through groove.

Through adopting above-mentioned technical scheme, the dovetail setting in sliding tray and sliding block cross-section has reduced the sliding block and has broken away from the possibility in the sliding tray, has improved the stability of splint, and when the sliding tray was logical groove, it was convenient for install the splint that have the sliding block on the mounting disc.

Optionally, a cylinder is arranged on one side of the clamping plate, which is away from the other clamping plate, and a piston rod of the cylinder is connected with the clamping plate.

Through adopting above-mentioned technical scheme, when starting the cylinder, the piston rod of cylinder drives splint and removes along sliding tray length direction, and the setting of cylinder is convenient for control splint's position to change the position of work piece, make the location of work piece more accurate.

Optionally, a connecting groove is formed in one side, close to the other clamping plate, of the clamping plate, the notch of the connecting groove is circular, a connecting block is arranged in the connecting groove, and the connecting block and the clamping plate form a complete cuboid plate.

By adopting the technical scheme, when the workpiece to be welded is cylindrical, the connecting block is taken out of the connecting groove, the two ends of the workpiece are aligned to the connecting groove, and the clamping plate is moved to clamp the workpiece from the two ends of the workpiece; when the workpiece to be welded is in other shapes, the connecting block is placed in the connecting groove, so that the connecting block and the clamping plate form a cuboid, and the clamping plate is moved to clamp the workpiece from two sides of the workpiece; the connecting block and the connecting groove are arranged, so that the clamping plate can be adjusted according to the shape of the workpiece, the stability of the workpiece is improved, and the welding precision is improved.

Optionally, the connecting block is fixed in the connecting groove through a bolt, and a nut of the bolt is embedded in the connecting block.

Through adopting above-mentioned technical scheme, the setting of bolt prevents that the connecting block from droing from the spread groove, the installation and the dismantlement of the connecting block of being convenient for simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. before welding a small workpiece, placing the workpiece on a mounting disc, sliding two clamping plates to enable the clamping plates to clamp the workpiece, and in the welding process, when the distance between the workpiece and a welding gun needs to be adjusted in a small range, enabling the workpiece to translate through the movement of the clamping plates or adjusting the angle of the workpiece through the rotation of the mounting disc;

2. when the motor is started, the first chain wheel rotates along with an output shaft of the motor to drive the chain to rotate, the second chain wheel rotates along with the chain to drive the mounting disc to rotate, so that the clamping plate is driven to rotate, the angle between the workpiece and the welding gun is changed, the rotation of the mounting disc is convenient to control due to the arrangement of the motor, and the workpiece is positioned more accurately;

3. when the workpiece to be welded is cylindrical, the connecting block is taken out of the connecting groove, the two ends of the workpiece are aligned to the connecting groove, and the clamping plate is moved to clamp the workpiece from the two ends of the workpiece; when the workpiece to be welded is in other shapes, the connecting block is placed in the connecting groove, so that the connecting block and the clamping plate form a cuboid, and the clamping plate is moved to clamp the workpiece from two sides of the workpiece; the connecting block and the connecting groove are arranged, so that the clamping plate can be adjusted according to the shape of the workpiece, the stability of the workpiece is improved, and the welding precision is improved.

Drawings

FIG. 1 is a schematic structural diagram of a clamp for robot welding according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram for embodying the rotating shaft in the embodiment of the present application.

Fig. 3 is a schematic structural diagram for embodying the shapes of the sliding block and the sliding groove in the embodiment of the present application.

Description of reference numerals: 1. a fixed table; 2. a support plate; 3. mounting a plate; 4. a motor; 5. a first sprocket; 6. mounting a disc; 61. a sliding groove; 7. a rotating shaft; 8. a second sprocket; 9. a chain; 10. a splint; 101. connecting grooves; 11. a slider; 12. a cylinder; 13. and (4) connecting the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a clamp for robot welding. Referring to fig. 1, a clamp for welding of robot includes fixed station 1, is equipped with two backup pads 2 of vertical setting and the mounting panel 3 that a level set up on fixed station 1, and backup pad 2 fixed connection is on fixed station 1, and mounting panel 3 is located the top of backup pad 2, and backup pad 2 parallel arrangement is in 3 length direction's of mounting panel both sides, and

backup pad

2 and 3 integrated into one piece of mounting panel form a "door".

Referring to fig. 1 and 2, a motor 4 is connected to the mounting plate 3 through a bolt, an output shaft of the motor 4 penetrates through the mounting plate 3, a first chain wheel 5 is coaxially and fixedly connected to the output shaft of the motor 4, and the first chain wheel 5 is located below the mounting plate 3. One side of mounting panel 3 is equipped with mounting disc 6, and the coaxial fixedly connected with pivot 7 in bottom of mounting disc 6, mounting disc 6 rotates through pivot 7 to be connected on fixed station 1. The mounting disc 6 is sleeved with a second chain wheel 8, and the second chain wheel 8 is coaxially and fixedly connected with the mounting disc 6. The first chain wheel 5 and the second chain wheel 8 are sleeved with a chain 9, the chain 9 is meshed with the first chain wheel 5, and the chain 9 is meshed with the second chain wheel 8.

Referring to fig. 1 and 3, two parallel sliding grooves 61 are formed in the mounting plate 6, and the distance from the center of the mounting plate 6 to the two sliding grooves 61 is equal. The slide groove 61 opens upward, and the slide groove 61 is a through groove extending in the longitudinal direction of the slide groove 61. Two parallel clamping plates 10 are arranged on the mounting plate 6, and the length direction of the clamping plates 10 is vertical to the length direction of the sliding groove 61. The bottom fixedly connected with two sliding blocks 11 of splint 10, sliding block 11 sets up along splint 10 length direction symmetry. The position of the slide block 11 corresponds to the position of the slide groove 61, and the slide block 11 is slidably connected in the slide groove 61, so that the clamping plate 10 is slidably engaged with the mounting plate 6. The sliding block 11 and the sliding groove 61 are both dovetail-shaped in cross section.

Referring to fig. 1 and 2, a cylinder 12 is disposed on one side of the clamping plate 10 away from the other clamping plate 10, the cylinder 12 is located between the two sliding grooves 61, the cylinder 12 is fixedly connected to the mounting plate 6, and a piston rod of the cylinder 12 is fixedly connected to the center of the side wall of the clamping plate 10. One side of the clamping plate 10 close to the other clamping plate 10 is provided with a connecting groove 101, and the connecting groove 101 is a cylindrical groove with an opening facing the other clamping plate 10. A connecting block 13 is arranged in the connecting groove 101, the connecting block 13 is fixed in the connecting groove 101 through a bolt, and a nut of the bolt is embedded in the connecting block 13. The shape of the connecting block 13 is the same as that of the connecting groove 101, and the side wall of the connecting block 13 coincides with that of the connecting groove 101, so that the connecting block 13 and the clamping plate 10 form a complete rectangular parallelepiped plate.

The implementation principle of the clamp for robot welding in the embodiment of the application is as follows: when a workpiece with a small size is welded, the workpiece is placed between the two clamping plates 10, the air cylinder 12 is started, the piston rod of the air cylinder 12 pushes the clamping plates 10 to move along the length direction of the sliding groove 61, and the workpiece is clamped from two sides of the workpiece.

When the workpiece to be welded is cylindrical, the bolt on the connecting block 13 is unscrewed, the connecting block 13 is taken out from the connecting groove 101, the two ends of the workpiece are aligned to the connecting groove 101, the cylinder 12 is started, and the workpiece is clamped from the two ends of the workpiece.

After the workpiece is installed, the welding robot is started to weld the workpiece, and when the position between the workpiece and a welding gun needs to be changed in a small range, the air cylinder 12 is started to enable the two clamping plates 10 to slide on the installation disc 6, so that the position of the workpiece is changed; or the motor 4 is started, the output shaft of the motor 4 drives the first chain wheel 5 to rotate, the chain 9 rotates along with the first chain wheel 5 to drive the second chain wheel 8 to rotate, and the mounting disc 6 rotates along with the second chain wheel 8, so that the workpiece between the clamping plate 10 and the clamping plate 10 is driven to rotate, and the change of the angle between the workpiece and the welding gun is realized.

The arrangement of the cylinder 12 and the clamping plate 10 is convenient for small-amplitude translation of the workpiece; the arrangement of the motor 4, the first chain wheel 5, the second chain wheel 8 and the chain 9 facilitates the rotation of the workpiece by a small amplitude. Because the size of splint 10 and mounting disc 6 is less to the size of welding robot arm, consequently be convenient for control work piece and welder between the position, improved the welder of welding robot and be difficult to the defect of accurate positioning for welding robot can pinpoint and accurate welding, improves welded efficiency.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a anchor clamps for robot welding which characterized in that: including fixed station (1), it is connected with mounting disc (6) to rotate on fixed station (1), sliding connection has splint (10) of two parallels on mounting disc (6), coaxial coupling has second sprocket (8) on mounting disc (6), be equipped with motor (4) on fixed station (1), coaxial coupling has first sprocket (5) on the output shaft of motor (4), the cover is equipped with chain (9) on first sprocket (5) and second sprocket (8).

2. The jig for robot welding of claim 1, characterized in that: the fixing table is characterized in that two supporting plates (2) are arranged on the fixing table (1), a mounting plate (3) is arranged on the supporting plates (2), and the motor (4) is fixed on the mounting plate (3) through bolts.

3. The jig for robot welding of claim 1, characterized in that: set up two parallel sliding tray (61) on mounting disc (6), be equipped with two sliding blocks (11) on splint (10), sliding block (11) sliding connection is in sliding tray (61).

4. The jig for robot welding of claim 3, characterized in that: the cross-sections of the sliding groove (61) and the sliding block (11) are both dovetail-shaped, and the sliding groove (61) is a through groove.

5. The jig for robot welding of claim 1, characterized in that: one side of the clamping plate (10) departing from the other clamping plate (10) is provided with a cylinder (12), and a piston rod of the cylinder (12) is connected with the clamping plate (10).

6. The jig for robot welding of claim 1, characterized in that: connecting groove (101) have been seted up to splint (10) one side that is close to another splint (10), the notch of connecting groove (101) is circular, be equipped with connecting block (13) in connecting groove (101), connecting block (13) and splint (10) form a complete cuboid board.

7. The jig for robot welding of claim 6, characterized in that: the connecting block (13) is fixed in the connecting groove (101) through a bolt, and a nut of the bolt is embedded in the connecting block (13).