A zero-point positioning fixture for machining shell parts

Abstract

This utility model relates to a zero-point positioning fixture for machining shell parts. It includes a robot connecting flange, a connecting fixture, a vision camera, a positioning fixture, a connecting sub-plate, a connecting female plate, a handle, and a gripper. One end of the connecting flange is connected to the robot, and the other end is connected to one end of the connecting fixture with a support arm. The vision camera is fixed to the other end of the connecting fixture, and the gripper is fixed to the lower end of the connecting fixture. The positioning fixture is fixed to the upper surface of the connecting sub-plate, and the workpiece to be processed is fixed to the positioning fixture. The handle is fixed to one side surface of the connecting sub-plate. The gripper and the handle are clamped together by a clamping mechanism. The connecting sub-plate and the connecting female plate are clamped together by a clamping mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to a zero-point positioning fixture for machining shell parts. Background Technology

[0002] In the machining of shell parts, machine tool fixtures are key components for achieving precise workpiece positioning and clamping. Traditional machine tool fixtures typically employ manual positioning and clamping methods, which suffer from low positioning accuracy, large repeatability errors, and complex operation. Especially in multi-process machining, repeated clamping of the workpiece leads to a decrease in machining accuracy, affecting product quality and production efficiency, and hindering the application of robotic intelligent material handling. Therefore, developing a fixture capable of achieving high-precision zero-point positioning is of significant practical importance. Utility Model Content

[0003] The purpose of this invention is to avoid the problems of low positioning accuracy, large repeatability error, and complex operation caused by the manual positioning and clamping method of traditional machine tool fixtures, and to provide a zero-point positioning fixture with high precision positioning and high repeatability.

[0004] The present invention provides a zero-point positioning fixture for machining shell parts, comprising a robot connecting flange 1, a connecting fixture 2, a vision camera 3, a positioning fixture 6, a connecting sub-plate 7, a connecting female plate 8, a handle 9, and a gripper 10. One end of the connecting flange 1 is connected to the robot, and the other end is connected to the connecting fixture 2 with a support arm. The vision camera 3 is fixed to the other end of the connecting fixture 2, and the gripper 10 is fixed to the lower end of the connecting fixture 2. The positioning fixture 6 is fixed to the upper surface of the connecting sub-plate 7, and the workpiece to be processed is fixed on the positioning fixture 6. The handle 9 is fixed to one side surface of the connecting sub-plate 7. The gripper 10 and the handle 9 are clamped together by a clamping mechanism. The connecting sub-plate 7 and the connecting female plate 8 are clamped together by a clamping mechanism.

[0005] In one possible embodiment, the inner surface of the gripper 10 matches the outer surface of the handle 9.

[0006] In one possible embodiment, the bottom end of the connecting daughter disk 7 is connected and locked to the upper end face of the connecting mother disk 8 by a pneumatic clamping mechanism.

[0007] In one possible embodiment, the gripper 10 and the handle 9 are connected and locked by a pneumatic clamping mechanism.

[0008] In one possible embodiment, the workpiece to be processed is fixed to the positioning fixture 6 by the OK clamp 5.

[0009] In one possible embodiment, the handle 9 is fixed to one end face of the connecting sub-disc 7 by screws.

[0010] Compared with the prior art, the beneficial technical effects of the present invention include:

[0011] This invention avoids the problems of low positioning accuracy, large repeatability error, and complex operation caused by the manual positioning and clamping methods of traditional machine tool fixtures, and provides a zero-point positioning fixture with high precision positioning and high repeatability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the present invention;

[0013] Figure 2 This is an exploded view of the preferred embodiment of the present invention;

[0014] Figure 3 This is a side view of a preferred embodiment of the present invention. Detailed Implementation

[0015] To more intuitively and clearly illustrate the structural principles and working methods of this utility model, the embodiments will be described below in conjunction with the relevant accompanying drawings:

[0016] The specific embodiments of this utility model will be further described in conjunction with the accompanying drawings. For example... Figure 1 As shown, a zero-point positioning fixture for machining shell parts includes a robot connecting flange 1, a connecting fixture 2, a vision camera 3, an OK clamp 5, a positioning fixture 6, a connecting sub-plate 7, a connecting female plate 8, a handle 9, and a gripper 10.

[0017] 8-Connecting mother plate is used to connect to the machine tool worktable. It has mounting holes and locating pins on its bottom for fixed connection to the machine tool worktable. 10-Handle gripper is mounted on 2-Connecting fixture and fixed to 1-Connecting flange (indirectly connected to the robot). The pneumatic clamping mechanism controls the gripping and releasing of 9-Handle gripper by opening and closing the air circuit. 7-Connecting daughter plate is fixed to 9-Handle gripper with screws and locating pins. 5-OK clamp is fixed to 6-Connecting daughter plate with screws. 4-Workpiece is fixed to 6-Location fixture via 5-OK clamp. 6-Location fixture is fixed to 7-Connecting daughter plate and indirectly to 9-Handle gripper with screws and locating pins, forming a unified assembly of workpiece, OK clamp, positioning fixture, connecting daughter plate, and hand gripper, ensuring the accuracy and stability of the clamping module.

[0018] like Figure 2 As shown, the bottom end of the connecting daughter disk 7 is connected and locked to the upper end face of the connecting mother disk 8 by a pneumatic clamping mechanism; Figure 3As shown, the gripper 10 and the handle 9 are connected and locked together by a pneumatic clamping mechanism.

[0019] Overall workflow: The robot, carrying an end-effector, moves to the designated position according to the system's dispatch program. A 3-vision camera precisely positions the incoming material (9-handle and other connecting components). Afterward, the robot uses a 10-handle gripper to pick up the 9-handle component and places it into the machine tool's 8-connecting master plate according to the system's order. The pneumatic circuit on the 8-connecting master plate clamps the 7-connecting daughter plate and upper components, achieving precise clamping and positioning of the workpiece so that the machine tool can process a qualified housing part. After processing, the 10-handle gripper and connecting components pick up the 9-handle and connecting components and send them to the next process for automated processing.

[0020] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the claims of the present utility model should be included in the scope of the present utility model.

Claims

1. A housing part machining zero-point fixture, characterized by, The system includes a robot connecting flange (1), a connecting fixture (2), a vision camera (3), a positioning fixture (6), a connecting sub-plate (7), a connecting mother plate (8), a handle (9), and a gripper (10). One end of the connecting flange (1) is connected to the robot, and the other end is connected to the connecting fixture (2) with a support arm. The vision camera (3) is fixed to the other end of the connecting fixture (2), and the gripper (10) is fixed to the lower end of the connecting fixture (2). The positioning fixture (6) is fixed to the upper surface of the connecting sub-plate (7), and the workpiece to be processed is fixed on the positioning fixture (6). The handle (9) is fixed to one side of the connecting sub-plate (7). The gripper (10) and the handle (9) are clamped together by a clamping mechanism. The connecting sub-plate (7) and the connecting mother plate (8) are clamped together by a clamping mechanism.

2. The zero-point positioning fixture for machining a housing part according to claim 1, characterized in that The inner surface of the gripper (10) matches the outer surface of the handle (9).

3. The zero-point positioning fixture for housing part machining according to claim 1, characterized in that, The bottom end of the connecting sub-disc (7) is connected and locked to the upper end face of the connecting mother disc (8) by a pneumatic clamping mechanism.

4. The zero-point positioning fixture for housing part machining according to claim 1, characterized in that, The hand grip (10) and the handle (9) are connected and locked together by a pneumatic clamping mechanism.

5. The zero-point positioning fixture for housing part machining according to claim 1, characterized in that, The workpiece to be processed is fixed on the positioning fixture (6) by the OK clamp (5).

6. The zero-point positioning fixture for housing part machining according to claim 1, characterized in that, The handle (9) is fixed to one end face of the connecting sub-disc (7) by screws.

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