Dismounting device for nut

Abstract

The utility model provides a dismounting device for a nut. The dismounting device for the nut comprises a middle shaft fixing mechanism, a supporting structure, a nut clamping mechanism and a rotating mechanism. The rotating mechanism is arranged on the supporting structure, and the output end of the rotating mechanism is connected with the nut clamping mechanism through a rotating connector. A middle shaft of a workpiece sequentially penetrates through the nut clamping mechanism, the rotating connector, the rotating mechanism and the supporting structure, a notch is formed in the inner side of the supporting structure, and the middle shaft fixing mechanism can be placed in the notch. The center shaft fixing mechanism is used for clamping and fixing a center shaft of the workpiece. According to the dismounting device for the nut, the problems that in the related technology, due to the fact that the nut is manually dismounted, the fatigue of workers is increased due to repeated and strenuous dismounting operation, the working efficiency is reduced, and misoperation is easily caused due to fatigue are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of nut disassembly, and in particular relates to a disassembly device for nuts. Background Art

[0002] During the assembly process, the specific nut installed on the center shaft plays a critical, though temporary, role. Its core function is to precisely position and secure the center shaft by applying a preload during the overall assembly phase, ensuring the desired tolerances between the center shaft and mating components, and providing a stable reference for subsequent assembly. However, the core function of this component is to enable the housing to rotate smoothly around the center shaft.

[0003] Once the entire assembly is complete, the center shaft is securely fastened, and the housing and center shaft form the desired rotational fit, the temporary nut must be removed. Because the nut is typically removed manually, repeated laborious disassembly increases worker fatigue, reducing work efficiency and increasing the risk of operator error. Utility Model Content

[0004] In view of this, the present invention aims to solve one of the related technical problems at least to a certain extent.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A nut disassembly device comprises a central axis fixing mechanism, a supporting structure, a nut clamping mechanism and a rotating mechanism;

[0007] The rotating mechanism is arranged on the supporting structure, and the output end of the rotating mechanism is connected to the nut clamping mechanism via a rotating joint;

[0008] The central axis of the workpiece passes through the nut clamping mechanism, the rotary joint, the rotating mechanism and the supporting structure in sequence. A notch is provided on the inner side of the supporting structure, and the notch can accommodate the central axis fixing mechanism;

[0009] The central axis fixing mechanism is used to clamp and fix the central axis of the workpiece.

[0010] Furthermore, the rotating mechanism includes a rotating device and a joint base plate, and the output end of the rotating device is connected to the rotating joint through the joint base plate.

[0011] Furthermore, the support structure includes a motor support plate and a mounting base plate, the motor support plate is arranged on the upper end surface of the mounting base plate, the slot is arranged in the middle of the motor support plate, the central axis fixing mechanism is arranged in the slot, and the central axis fixing mechanism is arranged on the upper end surface of the mounting base plate.

[0012] Furthermore, the central axis fixing mechanism includes a central axis clamping cylinder and two central axis clamping hands. The central axis clamping cylinder is arranged on the upper end surface of the mounting base plate. The output end of the central axis clamping cylinder is connected to the two central axis clamping hands. The two central axis clamping hands are used to clamp the central axis of the workpiece.

[0013] Furthermore, the nut clamping mechanism includes a nut clamping cylinder and two nut clamping hands. The nut clamping cylinder is connected to the rotary joint through the clamping cylinder base plate. The output end of the nut clamping cylinder is connected to the two nut clamping hands. The two nut clamping hands are used to clamp the nut on the central axis.

[0014] Furthermore, the rotating device is a DD motor.

[0015] Compared with the prior art, the nut disassembly device described in the present invention has the following advantages:

[0016] 1. The center axis gripper cylinder drives the dual grippers to precisely grip the workpiece center axis within the slot, ensuring rigid fixation and precise positioning of the center axis during disassembly. This effectively prevents displacement or rotation of the center axis during nut rotation, ensuring that disassembly force is directly and fully applied to the nut, protecting the critical tolerance fit between the center axis and the housing.

[0017] 2. A nut gripper cylinder drives a dual gripper to clamp the nut, which is connected to the DD motor output via a rotary joint. The nut clamping mechanism provides a stable, high-torque clamping force for the nut and enables highly precise, smooth, and controllable rotational motion driven by the DD motor. This ensures the nut is securely clamped and can be precisely disassembled in the desired direction without slippage or damage, significantly reducing the risk of damage to the nut and the center shaft threads.

[0018] 3. The device is compactly integrated with a central axis fixing mechanism, nut clamping mechanism, rotating mechanism, and supporting structure. This achieves efficient spatial coordination and precise positioning of the various functional modules. In particular, the central axis through-hole layout and slot design ensure rapid and accurate alignment of the workpiece central axis and the disassembly device. This structure significantly improves operational convenience and repeatability, making it particularly suitable for applications where space is limited or where highly repeatable disassembly operations are required. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the workpiece structure according to an embodiment of the present utility model;

[0021] Figure 2 This is a three-dimensional schematic diagram of a nut disassembly device according to an embodiment of the present utility model;

[0022] Figure 3 This is a cross-sectional view of a nut disassembly device according to an embodiment of the present utility model.

[0023] Description of reference numerals:

[0024] 1. Workpiece; 2. Workpiece fixing bracket; 3. Nut clamp cylinder; 4. Nut clamp; 5. Clamp cylinder base plate; 6. Rotary joint; 7. Joint base plate; 8. Rotating device; 9. Motor support plate; 10. Center axis clamp cylinder; 11. Center axis clamp; 12. Mounting base plate; 13. Nut; 14. Center axis. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] A disassembly device for a nut, such as Figure 1 As shown, it includes a central axis fixing mechanism, a supporting structure, a nut clamping mechanism and a rotating mechanism; the rotating mechanism is arranged on the supporting structure, and the output end of the rotating mechanism is connected to the nut clamping mechanism through a rotating joint 6;

[0030] The entire device, consisting of a central axis fixing mechanism, nut clamping mechanism, rotating mechanism, and supporting structure, is compactly integrated on a mounting base plate 12. This achieves efficient spatial coordination and precise positioning of the various functional modules. In particular, the layout of the central axis 14 extending through the nut gripper 4, rotary joint 6, rotating mechanism 8, and motor support plate 9, along with the slot design of the motor support plate 9, ensures quick and accurate alignment of the workpiece central axis 14 and the disassembly device. This structure significantly improves operational convenience and repeatability, making it particularly suitable for applications where space is limited or where highly repeatable disassembly operations are required.

[0031] The central axis 14 of the workpiece 1 passes through the nut clamping mechanism, the rotary joint 6, the rotating mechanism and the supporting structure in sequence. A slot is provided on the inner side of the supporting structure, in which the central axis fixing mechanism can be placed; the central axis fixing mechanism is used to clamp and fix the central axis 14 of the workpiece 1.

[0032] The rotating mechanism includes a rotating device 8 and a joint base 7. The output end of the rotating device 8 is connected to the rotating joint 6 through the joint base 7. The rotating device 8 is a DD motor, and the rotating joint 6 is a columnar structure with a positioning hole in the middle of the columnar structure that can cooperate with the central axis 14.

[0033] The supporting structure includes a motor support plate 9 and a mounting base plate 12. The motor support plate 9 is arranged on the upper end surface of the mounting base plate 12, the slot is arranged in the middle of the motor support plate 9, the central axis fixing mechanism is arranged in the slot, and the central axis fixing mechanism is arranged on the upper end surface of the mounting base plate 12.

[0034] The central axis fixing mechanism includes a central axis clamping cylinder 10 and two central axis clamping hands 11. The central axis clamping cylinder 10 is arranged on the upper end surface of the mounting base 12. The output end of the central axis clamping cylinder 10 is connected to the two central axis clamping hands 11. The two central axis clamping hands 11 are used to clamp the central axis 14 of the workpiece 1. The central axis clamping cylinder 10 drives the double central axis clamping hands 11 to accurately clamp the central axis 14 of the workpiece 1 in the slot in the middle of the motor support plate 9. It can achieve rigid fixation and precise positioning of the central axis 14 during the disassembly process. It effectively prevents the central axis 14 from being displaced or rotated when the nut 13 is rotated for disassembly, ensures that the disassembly force acts directly and completely on the nut 13, and protects the critical tolerance fit accuracy between the central axis 14 and the outer shell of the workpiece 1 from being damaged.

[0035] The nut clamping mechanism includes a nut gripper cylinder 3 and two nut grippers 4. The nut gripper cylinder 3 is connected to a rotary joint 6 via a gripper cylinder base plate 5. The output of the nut gripper cylinder 3 is connected to the two nut grippers 4, which are used to clamp the nut 13 on the central shaft 14. The nut gripper cylinder 3 drives the two nut grippers 4 to clamp the nut 13. The nut gripper cylinder 3 then connects to the output of the rotating device 8 (DD motor) via a rotary joint 6 (via a joint base plate 7). The nut clamping mechanism provides a stable, high-torque clamping force for the nut 13 and enables highly precise, smooth, and controllable rotational motion driven by the DD motor. This ensures that the nut 13 is securely clamped and can be precisely disassembled in the desired direction without slippage or damage, significantly reducing the risk of damage to the threads of the nut 13 and the central shaft 14.

[0036] How this example works

[0037] Step 1: Place the workpiece 1 on the workpiece support 2, ensuring that its center axis 14 is oriented correctly. Activate the center axis gripper cylinder 10, driving the two center axis grippers 11 to precisely clamp the center axis 14 of the workpiece 1 in the notch in the middle of the motor support plate 9, achieving rigid fixation of the center axis.

[0038] Step 2: Start the nut gripper cylinder 3 to drive the two nut grippers 4 to firmly grip the nut 13 on the workpiece 1. The pressurized gas required by the nut gripper cylinder 3 is continuously supplied through the rotary joint 6.

[0039] Step 3: Rotating device 8 (DD motor) fixed to motor support plate 9 starts rotating. Its output torque sequentially drives joint base plate 7, rotary joint 6, gripper cylinder base plate 5, nut gripper cylinder 3, and nut gripper 4 to rotate as a whole, loosening nut 13 relative to central axis 14. Simultaneously, mounting base plate 12 (which securely connects the support structure, central axis fixing mechanism, rotating mechanism, and nut clamping mechanism) is mounted on the movable base of the slide mechanism. As nut 13 loosens and begins to withdraw axially along the threads of central axis 14, the movable base, driven by the slide mechanism, moves synchronously in a direction parallel to the axis of central axis 14, ensuring that the nut clamping mechanism rotates and moves axially with nut 13.

[0040] Step 4: Rotating device 8 rotates precisely a preset number of times, while the sliding mechanism's movable base drives mounting base plate 12 and nut clamping mechanism to move linearly within a preset stroke until nut 13 is completely unthreaded from central axis 14. Nut gripper 4 then maintains its grip, while the sliding mechanism's movable base moves the entire disassembly device away from the workpiece, completing nut removal.

[0041] Step 5: The central axis gripper 11 loosens the central axis 14 , and the operator removes the disassembled nut 13 from the nut gripper 4 and moves the workpiece 1 out of the workpiece fixing bracket 2 .

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nut disassembly device, characterized in that: It includes a central axis fixing mechanism, a supporting structure, a nut clamping mechanism and a rotating mechanism; The rotating mechanism is arranged on the supporting structure, and the output end of the rotating mechanism is connected to the nut clamping mechanism via a rotating joint (6); The central axis (14) of the workpiece (1) sequentially passes through the nut clamping mechanism, the rotary joint (6), the rotary mechanism and the supporting structure, and a notch is provided on the inner side of the supporting structure, and the notch can accommodate the central axis fixing mechanism; The center axis fixing mechanism is used to clamp and fix the center axis (14) of the workpiece (1).

2. A nut disassembly device according to claim 1, characterized in that: The rotating mechanism comprises a rotating device (8) and a joint base plate (7), and the output end of the rotating device (8) is connected to the rotating joint (6) via the joint base plate (7).

3. A nut disassembly device according to claim 2, characterized in that: The support structure includes a motor support plate (9) and a mounting base plate (12), wherein the motor support plate (9) is arranged on the upper end surface of the mounting base plate (12), the notch is arranged in the middle of the motor support plate (9), the central axis fixing mechanism is arranged in the notch, and the central axis fixing mechanism is arranged on the upper end surface of the mounting base plate (12).

4. A nut disassembly device according to claim 3, characterized in that: The central axis fixing mechanism comprises a central axis clamping cylinder (10) and two central axis clamping hands (11), wherein the central axis clamping cylinder (10) is arranged on the upper end surface of the mounting base plate (12), and the output end of the central axis clamping cylinder (10) is connected to the two central axis clamping hands (11), and the two central axis clamping hands (11) are used to clamp the central axis (14) of the workpiece (1).

5. A nut removal device according to any one of claims 2 to 4, characterized in that: The nut clamping mechanism includes a nut clamping cylinder (3) and two nut clamping hands (4). The nut clamping cylinder (3) is connected to the rotary joint (6) through a clamping cylinder base plate (5). The output end of the nut clamping cylinder (3) is connected to the two nut clamping hands (4). The two nut clamping hands (4) are used to clamp the nut (13) on the central shaft (14).

6. A nut disassembly device according to claim 5, characterized in that: The rotating device (8) is a DD motor.

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