A handling jig for casting extraction

Abstract

The utility model relates to the field of material taking manipulator, concretely relates to a carrying clamp for casting taking out, include: double guide rail sliding platform finger cylinder, its back portion is equipped with the main mounting seat for connecting with mechanical arm, two movable chucks are installed on the two slide platforms of double guide rail sliding platform finger cylinder respectively, and two chuck are driven synchronous by double guide rail sliding platform finger cylinder and move towards each other or move away from each other, two fixed chucks are installed on double guide rail sliding platform finger cylinder respectively and are located at the outside of the maximum position of two movable chucks moving away from each other. Through the cooperation of fixed clamping jaw and movable clamping jaw, the clamping capacity of the clamping jaw mechanism with double guide rail sliding platform finger cylinder as power source is greatly improved, and the anti-slipping capacity is improved compared with the traditional pure clamping mode.

Description

Technical Field

[0001] This utility model relates to the field of material handling robots, specifically to a handling fixture for removing castings. Background Technology

[0002] In the casting production process, the removal of castings typically relies on robotic arms combined with handling fixtures. Currently, the industry widely uses dual-guide slide table finger cylinder clamps, whose working principle mainly depends on cylinders driving movable jaws to generate clamping force to grasp the workpiece. However, these traditional clamps suffer from insufficient clamping stability. For example, traditional clamps rely solely on the clamping force of the movable jaws; when handling heavy or irregularly shaped castings, insufficient clamping force can easily cause the workpiece to slip, posing a safety hazard.

[0003] Therefore, there is a need to provide a handling fixture for removing castings to solve the aforementioned problems. Utility Model Content

[0004] To address the aforementioned issues, a handling fixture for removing castings is provided. By cooperating with fixed and movable jaws, the clamping capacity of the jaw mechanism, powered by a double-guide-rail slide finger cylinder, is greatly improved.

[0005] To address the problems of existing technologies, this utility model provides a handling fixture for removing castings, which is used to handle castings mounted on a robotic arm. The fixture includes: a double-rail slide finger cylinder with a main mounting base on its back for connection to the robotic arm; two movable grippers, respectively mounted on the two slides of the double-rail slide finger cylinder, the two grippers being driven by the double-rail slide finger cylinder to move synchronously in opposite directions or in opposite directions; and two fixed grippers, respectively mounted on the double-rail slide finger cylinder and located outside the maximum position of the opposite movement of the two movable grippers.

[0006] Preferably, the front end of the fixed chuck is provided with a positioning block, and the front end of the movable chuck is provided with a clamping block for contacting the casting being transported, facing outward from the fixed chuck.

[0007] Preferably, the head of the positioning block is formed with a pin portion that mates with a hole on the casting being transported.

[0008] Preferably, the head of the pin portion is tapered.

[0009] Preferably, the fixing chuck has a contact surface that contacts the casting being transported, and a through hole is provided on the contact surface for the pin portion to pass through.

[0010] Preferably, the through hole is provided with an internal thread, and the middle part of the positioning block is provided with an external thread that mates with the internal thread.

[0011] Preferably, a locking nut is threadedly connected to the middle of the positioning block.

[0012] Preferably, the tail of the positioning block has an adjustment portion.

[0013] Preferably, the front of the dual-rail slide finger cylinder is fixedly mounted with a secondary mounting base for mounting a fixing clamp, and the secondary mounting base is provided with clearance grooves for avoiding the two slides of the dual-rail slide finger cylinder.

[0014] The advantages of this utility model compared to the prior art are:

[0015] (1) By cooperating with fixed and movable grippers, the gripping capacity of the gripper mechanism powered by the double guide rail slide table finger cylinder is greatly improved.

[0016] (2) Furthermore, a rigid anchor point is formed by the mechanical cooperation between the positioning block pin and the casting hole, and combined with the clamping force of the movable chuck, a composite fixing structure of "anchoring + clamping" is formed, which improves the anti-slipping ability compared with the traditional pure clamping method. Attached Figure Description

[0017] Figure 1 This is a perspective view of a handling fixture for removing castings according to this utility model.

[0018] Figure 2 This is a front view of a handling fixture for removing castings according to this utility model.

[0019] Figure 3 This is a top view of a handling fixture for removing castings according to this utility model.

[0020] Figure 4 yes Figure 3 A cross-sectional view along the AA direction.

[0021] Figure 5 yes Figure 3 Cross-sectional view along the BB direction.

[0022] Figure 6 This is an axonometric view of the disassembled state of a handling fixture for removing castings according to this utility model.

[0023] Figure 7 This is a front view of the disassembled state of a handling fixture for removing castings according to this utility model.

[0024] Figure 8 This is a schematic diagram of the working process of a handling fixture for removing castings according to this utility model.

[0025] Figure 9 yes Figure 8 Enlarged view of point C in the middle.

[0026] The following are the labels in the diagram: 1. Double-rail slide table finger cylinder; 11. Slider; 2. Main mounting base; 3. Movable gripper; 31. Clamping block; 4. Fixed gripper; 41. Positioning block; 411. Pin shaft part; 412. Adjustment part; 42. Locking nut; 5. Secondary mounting base; 51. Clearance groove; 6. Casting being transported. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0028] See Figures 1 to 7 The diagram illustrates a casting removal handling fixture, used for handling castings mounted on a robotic arm. It includes: a double-rail slide finger cylinder 1, with a main mounting base 2 for connection to the robotic arm mounted on its back; two movable grippers 3, respectively mounted on the two slides of the double-rail slide finger cylinder 1, the two movable grippers being driven by the double-rail slide finger cylinder 1 to move synchronously towards or away from each other; and two fixed grippers 4, respectively mounted on the double-rail slide finger cylinder 1 and located outside the maximum position of the two movable grippers 3 during their opposite movements. The front end of each fixed gripper 4 has a positioning block 41, and the front end of each movable gripper 3, facing outwards towards the fixed grippers, has a clamping block 31 for contacting the casting 6 being handled.

[0029] Traditional clamps powered by a double-guide-rail slide finger cylinder 1 are typically used for gripping lighter objects due to insufficient clamping force. This invention employs a movable chuck 3 in conjunction with a fixed chuck 4. The positioning block 41 on the fixed chuck 4 engages with holes on the casting 6 being handled. Some of these holes are process holes, while others are structural holes, forming anchor points. The movable chuck 3's clamping block 31 further presses the casting 6 into place. The combination of the clamping block 31 and the positioning block 41 creates a multi-point clamping structure, enabling the gripping of heavier objects with lower clamping force and preventing workpiece slippage caused by relying solely on the movable chuck.

[0030] Reference Figure 5 , Figure 8 and Figure 9As shown, the head of the positioning block 41 has a pin portion 411 that mates with a hole on the casting 6 being transported. The head of the pin portion 411 is tapered. It should be noted that the tapered structure of the front end of the pin portion 411 facilitates its insertion into the hole on the casting 6 being transported and locking it within the hole. The fixing chuck 4 has a contact surface that contacts the casting 6 being transported. This contact surface can also be understood as a limiting surface. When the contact surface contacts the casting 6 being transported, it indicates that the pin portion 411 is fully inserted, ensuring stable subsequent gripping. A through hole is provided on this contact surface for the pin portion 411 to pass through. The through hole has an internal thread, and the middle of the positioning block 41 has an external thread that mates with the internal thread. A locking nut 42 is threadedly connected to the middle of the positioning block 41. An adjustment portion 412 is formed at the tail of the positioning block 41. The distance from the pin 411 extending to the through hole can be adjusted according to the actual situation. Specifically, the adjustment method is to first loosen the locking nut 42, then rotate the adjusting part 412 to rotate the middle part of the positioning block 41 to adjust the distance from the pin 411 extending. After adjusting to a suitable distance, tighten the locking nut 42 to press it in place.

[0031] Reference Figure 6 , Figure 7 As shown, a secondary mounting base 5 for mounting a fixed clamp is fixedly installed on the front of the dual-rail slide finger cylinder 1. The secondary mounting base 5 has clearance grooves 51 for avoiding the two slides of the dual-rail slide finger cylinder 1.

[0032] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A handling fixture for removing castings, used for mounting on a robotic arm to handle castings, characterized in that, include: A dual-rail slide finger cylinder (1) has a main mounting base (2) on its back for connection with a robotic arm; Two movable clamps (3) are respectively installed on the two slides of the double guide rail slide finger cylinder (1). The two movable clamps are driven by the double guide rail slide finger cylinder (1) to move synchronously towards or away from each other. Two fixed clamps (4) are respectively installed on the double guide rail slide finger cylinder (1) and located on the outside of the maximum position of the two movable clamps (3) moving in opposite directions.

2. The handling fixture for removing castings according to claim 1, characterized in that, The fixed chuck (4) has a positioning block (41) at its front end, and the movable chuck (3) has a clamping block (31) installed at its front end toward the fixed chuck (4) on its outer side for contacting the casting (6) being transported.

3. A handling fixture for removing castings according to claim 2, characterized in that, The head of the positioning block (41) is formed with a pin portion (411) that mates with a hole on the casting (6) being transported.

4. A handling fixture for removing castings according to claim 3, characterized in that, The head of the pin (411) is tapered.

5. A handling fixture for removing castings according to claim 4, characterized in that, The fixed chuck (4) has a contact surface that contacts the casting (6) being transported, and a through hole is provided on the contact surface for the pin portion (411) to pass through.

6. A handling fixture for removing castings according to claim 5, characterized in that, The through hole is provided with an internal thread, and the middle part of the positioning block (41) is provided with an external thread that mates with the internal thread.

7. A handling fixture for removing castings according to claim 5, characterized in that, The positioning block (41) is threaded with a locking nut (42) in the middle.

8. A handling fixture for removing castings according to claim 7, characterized in that, An adjustment part (412) is formed at the tail of the positioning block (41).

9. A handling fixture for removing castings according to any one of claims 1-8, characterized in that, The front of the dual-rail slide finger cylinder (1) is fixedly mounted with a secondary mounting base (5) for mounting a fixed clamp. The secondary mounting base (5) has clearance grooves (51) for avoiding the two slides of the dual-rail slide finger cylinder (1).

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