Mechanical gripper for automatic gear ring production line

Abstract

The utility model relates to a mechanical gripper for an automatic gear ring production line, which comprises a fixed support, a sliding cavity arranged along the vertical direction is arranged in the fixed support, the upper end and the lower end of the sliding cavity are through, a guide rail is arranged on the inner side wall of the sliding cavity, a lifting frame is mounted on the guide rail and connected with a driving mechanism, and a mounting seat is mounted at the bottom end of the lifting frame. A rotating cylinder is mounted at the bottom of the mounting base, a triangular mounting frame is fixedly mounted at the output end of the rotating cylinder, one side of the mounting frame is connected with the rotating cylinder, the other two sides of the mounting frame are each provided with a pneumatic clamping jaw, and one pneumatic clamping jaw is provided with a buffering mechanism which comprises a jacking frame and a plurality of connecting rods; one end of the connecting rod is fixedly connected with a driving part of the pneumatic clamping jaw, the other end of the connecting rod extends to the jacking frame, a spring is arranged between the other end of the connecting rod and the jacking frame, and the jacking frame is located on the inner side of the clamping jaw and has a certain buffering distance with the clamping jaw. The machining precision can be improved, and the product quality stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear ring processing, in particular to a mechanical gripper used for a gear ring automatic production line. Background Art

[0002] When processing the gear ring, it is necessary to first process the annular blank into a smooth surface, and finally process the inner ring gear or outer ring gear. Some companies use automatic processing production lines to process the smooth surface. The automatic production line mainly uses robots to grab and transfer the workpiece, but the existing robots have the following technical problems in actual use: pneumatic grippers are used to clamp the workpiece. When the robot carries the workpiece to the fixture of the machine tool, the workpiece may not be in place, affecting the processing accuracy. Summary of the invention

[0003] The main purpose of the utility model is to solve the problems existing in the above-mentioned prior art and provide a mechanical gripper for an automatic production line of gear rings.

[0004] The specific scheme of the utility model is: a mechanical gripper for an automatic production line of a gear ring, comprising a fixed bracket, a sliding cavity arranged in a vertical direction is provided in the fixed bracket, the upper and lower ends of the sliding cavity are penetrated, a guide rail is provided on the inner wall of the sliding bracket, a lifting frame is installed on the guide rail, the lifting frame is connected to a driving mechanism, a mounting seat is installed at the bottom end of the lifting frame, a rotating cylinder is installed at the bottom of the mounting seat, a triangular mounting frame is fixedly installed at the output end of the rotating cylinder, one side of the mounting frame is connected to the rotating cylinder, and the other two sides are respectively equipped with a pneumatic clamping jaw, one of the pneumatic clamping jaws is provided with a buffer mechanism, the buffer mechanism comprises a jacking frame and a plurality of connecting rods, one end of the connecting rod is fixedly connected to the driving part of the pneumatic clamping jaw, and the other end extends to the jacking frame and a spring is installed between the jacking frame, and the jacking frame is located on the inner side of the clamping jaw and a certain buffer distance is provided between the clamping jaw.

[0005] Furthermore, an adjusting screw is installed between the connecting rod and the ejector frame, the spring sleeve is outside the adjusting screw, one end of the adjusting screw is fixedly connected to the ejector frame, and the other end passes through the corresponding connecting rod and is equipped with an adjusting nut, and a through hole is provided on the connecting rod corresponding to the adjusting screw.

[0006] Furthermore, the ejector frame is an annular support, and the outer diameter of the annular support is smaller than the outer diameter of the gear ring and larger than the inner hole diameter of the gear ring.

[0007] Furthermore, a spur rack is provided along the entire length of one side of the lifting frame, and the driving mechanism includes a driving gear and a driving motor. The driving gear is meshed with the spur rack, the driving motor is installed on a fixed bracket, and the output end of the driving motor is transmission-connected to the driving gear.

[0008] Furthermore, a support plate is provided on each side of the driving gear, the support plate is connected to the fixed bracket, both ends of the central axis of the driving gear are rotatably connected to the support plate and one end is equipped with a driven sprocket, the output end of the driving motor is equipped with a driving sprocket, and a chain is installed between the driving sprocket and the driven sprocket.

[0009] Compared with the prior art, the utility model has the following advantages: by providing a buffer mechanism, the workpiece can be completely put into place through the buffer mechanism when the manipulator loads the material to the machine tool, thereby improving the processing accuracy and enhancing the stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional view of the structure of the utility model;

[0011] Figure 2 yes Figure 1 The main view;

[0012] Figure 3 yes Figure 2 AA view;

[0013] Figure 4 yes Figure 2 C-direction view;

[0014] Figure 5 It is a partial three-dimensional schematic diagram of the rotary cylinder and pneumatic clamp of the utility model;

[0015] Figure 6 yes Figure 5 A three-dimensional schematic diagram from another perspective;

[0016] In the figure: 1. pneumatic clamp; 1a. pneumatic clamp; 2. buffer mechanism; 21. ejector frame; 22. connecting rod; 23. spring; 24. adjusting screw; 3. driving motor; 4. driving sprocket; 5. driven sprocket; 6. driving gear; 7. lifting frame; 8. fixed bracket; 9. rotating cylinder; 10. mounting frame; 11. beam; 12. track. DETAILED DESCRIPTION

[0017] See also Figure 1-6The present embodiment is a mechanical gripper for an automatic production line of a gear ring, comprising a fixed bracket 8, a sliding cavity arranged in a vertical direction is provided in the fixed bracket 8, the upper and lower ends of the sliding cavity are penetrated, a guide rail is provided on the inner wall of the sliding strong, a lifting frame 7 is provided on the guide rail, the lifting frame 7 is connected to a driving mechanism, a mounting seat is provided at the bottom of the lifting frame 7, a rotating cylinder 9 is provided at the bottom of the mounting seat, a triangular mounting frame 10 is fixedly provided at the output end of the rotating cylinder 9, one side of the mounting frame 10 is connected to the rotating cylinder 9, and a pneumatic clamp 1 is provided on each of the other two sides, one of the pneumatic clamps 1 is provided with a buffer mechanism 2, the buffer mechanism 2 comprises a top frame 21 and a plurality of connecting rods 22, one end of the connecting rod 22 is fixedly connected to the driving part of the pneumatic clamp 1, and the other end extends to the top frame 21 and a spring 23 is provided between the top frame 21, the top frame 21 is located on the inner side of the clamp and a certain buffer distance is provided between the clamp and the clamp.

[0018] Furthermore, an adjusting screw 24 is installed between the connecting rod 22 and the ejector frame 21, and the spring 23 is sleeved on the outside of the adjusting screw 24. One end of the adjusting screw 24 is fixedly connected to the ejector frame 21, and the other end passes through the corresponding connecting rod 22 and is equipped with an adjusting nut. A through hole is provided on the connecting rod 22 corresponding to the adjusting screw 24, and the distance between the ejector frame 21 and the connecting rod 22 is adjusted by adjusting the nut and the adjusting screw 24.

[0019] Furthermore, the ejector frame 21 is an annular support, and the outer diameter of the annular support is smaller than the outer diameter of the gear ring and larger than the inner hole diameter of the gear ring.

[0020] Furthermore, a spur rack is provided on one side of the lifting frame 7 along its entire length, and the driving mechanism includes a driving gear 6 and a driving motor 3. The driving gear 6 is meshed with the spur rack. The driving motor 3 is installed on a fixed bracket 8, and the output end of the driving motor 3 is transmission-connected to the driving gear 6.

[0021] Furthermore, a support plate is provided on each side of the driving gear 6, and the support plate is connected to the fixed bracket 8. Both ends of the central axis of the driving gear 6 are rotatably connected to the support plate and one end is equipped with a driven sprocket 5. The output end of the driving motor 3 is equipped with a driving sprocket 4, and a chain is installed between the driving sprocket 4 and the driven sprocket 5.

[0022] The working principle of the utility model is as follows: the entire manipulator is installed on a beam 11, the beam 11 is arranged above the machine tool, a track 12 is installed on the beam 11, the fixed bracket 8 moves along the track 12, and the direction and distance of movement of the fixed bracket 8 along the track 12 are controlled by a driving mechanism. The driving mechanism is connected to the control system signal of the machine tool. The specific structural form and connection method of the driving mechanism belong to the prior art, so they will not be repeated here.

[0023] When the fixed bracket 8 moves to a certain position, the control system sends a command to control the lifting frame 7 to move up and down. Specifically, the driving motor 3 drives the driving gear 6, and the driving gear 6 drives the lifting frame 7 to move up and down through the spur rack. When loading the workpiece, the pneumatic clamp 1 with the buffer mechanism 2 is always used to perform the action, and when removing the workpiece from the machine tool, another pneumatic clamp 1a is always used to perform the action. The pneumatic clamp 1 and the pneumatic clamp 1a are switched by the action of the rotating cylinder 9. Specifically, the triangular mounting frame 10 is driven by the rotating cylinder 9 to rotate 180°, so that the positions of the pneumatic clamp 1 and the pneumatic clamp 1a can be interchanged.

[0024] When the manipulator clamps the workpiece and loads it into the machine tool, the pneumatic clamp 1 with the buffer mechanism 2 clamps the workpiece, and the axis of the workpiece is in a horizontal state. The subsequent actions are as follows: first, the fixed bracket 8 is moved to the appropriate position, and then the lifting frame 7 is lowered to make the workpiece reach the height of the machine tool fixture. At this time, the axis of the workpiece is coaxial with the center line of the machine tool fixture, and then the fixed bracket 8 moves the pneumatic clamp 1 laterally toward the fixture to make the workpiece enter the machine tool fixture. The pressure applied to the ejector frame 21 by the spring 23 pushes the workpiece toward the machine tool fixture, so that the workpiece is completely in place, and then the machine tool fixture clamps the workpiece, and finally the pneumatic clamp 1 releases the workpiece, the fixed bracket 8 moves out laterally, the lifting frame 7 rises and resets, the loading action is completed, and the machine tool starts to execute the processing program.

Claims

1. A mechanical gripper for an automatic production line of a ring gear, characterized by: It includes a fixed bracket, which is provided with a sliding cavity arranged in a vertical direction, the upper and lower ends of the sliding cavity are penetrated, a guide rail is provided on the inner wall of the sliding body, a lifting frame is installed on the guide rail, the lifting frame is connected to a driving mechanism, a mounting seat is installed at the bottom of the lifting frame, a rotating cylinder is installed at the bottom of the mounting seat, a triangular mounting frame is fixedly installed at the output end of the rotating cylinder, one side of the mounting frame is connected to the rotating cylinder, and the other two sides are respectively provided with a pneumatic clamping jaw, one of the pneumatic clamping jaws is provided with a buffer mechanism, the buffer mechanism includes a jacking frame and a plurality of connecting rods, one end of the connecting rod is fixedly connected to the driving part of the pneumatic clamping jaw, and the other end extends to the jacking frame and a spring is installed between the jacking frame, the jacking frame is located on the inner side of the clamping jaw and a certain buffer distance is provided between the clamping jaw.

2. The mechanical gripper for the automatic production line of gear rings according to claim 1 is characterized in that: An adjusting screw is installed between the connecting rod and the jacking frame, the spring sleeve is outside the adjusting screw, one end of the adjusting screw is fixedly connected to the jacking frame, and the other end passes through the corresponding connecting rod and is equipped with an adjusting nut, and a through hole is provided on the connecting rod corresponding to the adjusting screw.

3. The mechanical gripper for the automatic production line of ring gears according to claim 1 is characterized in that: The jacking frame is an annular support, and the outer diameter of the annular support is smaller than the outer diameter of the gear ring and larger than the inner hole diameter of the gear ring.

4. The mechanical gripper for the automatic production line of gear rings according to claim 1 is characterized by: A spur rack is provided along the entire length of one side of the lifting frame. The driving mechanism includes a driving gear and a driving motor. The driving gear is meshed with the spur rack. The driving motor is installed on a fixed bracket, and the output end of the driving motor is transmission-connected to the driving gear.

5. The mechanical gripper for the automatic production line of ring gears according to claim 4 is characterized in that: A support plate is provided on each side of the driving gear, the support plate is connected to the fixed bracket, both ends of the central axis of the driving gear are rotatably connected to the support plate and one end is equipped with a driven sprocket, the output end of the driving motor is equipped with a driving sprocket, and a chain is installed between the driving sprocket and the driven sprocket.

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