Pressing tool for electric motor machining

By combining sensors and a cylinder system, the motor-driven machining clamping fixture achieves precise alignment and continuous clamping, solving the clamping misalignment problem and improving machining efficiency and accuracy.

WO2026129698A1PCT designated stage Publication Date: 2026-06-25AIKESHANGHAI MEDICAL INSTR CO LTD

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
AIKESHANGHAI MEDICAL INSTR CO LTD
Filing Date
2025-08-20
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

The existing motor machining clamping fixture lacks continuity between two clamping operations, resulting in excessively long processing intervals and a tendency for clamping misalignment, which reduces accuracy.

Method used

By using a sensor and transmitter in conjunction with a cylinder system, the positioning groove and the clamping block are precisely aligned. The drive component drives the rotating rod and the worktable to rotate. After the sensor detects the induction coil, it sends a signal, and the cylinder works to move the clamping block, achieving precise clamping and avoiding misalignment.

Benefits of technology

It improves the precision of motor machining clamping fixtures, ensures the continuity of the clamping process, and enhances processing efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN2025115786_25062026_PF_FP_ABST
    Figure CN2025115786_25062026_PF_FP_ABST
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Abstract

A pressing tool for electric motor machining, comprising a base (1) and a work platform (10). A frame (2) is fixedly connected to one side of the base (1); a cylinder (3) is fixedly connected to an inner top wall of the frame (2); a piston rod (5) is disposed at the bottom of the cylinder (3); a pressing block (6) is fixedly connected to the bottom of the piston rod (5); a sensor (7) is fixedly sleeved on the outer wall of the pressing block (6); an operating recess (9) is provided at the top of the base (1); a positioning recess (14) is provided at the top of the work platform (10); and sensing rings (15) are fixedly connected to the top of the work platform (10). When driving a rotating rod (16) and the work platform (10) to rotate, a driving component drives the sensing rings (15) and the positioning recess (14) to rotate. When the positioning recess (14) is aligned with the pressing block (6), the sensor (7) senses the sensing rings (15), and thus a transmitter (8) sends out a signal, a receiver (4) then receives the signal, and the cylinder (3) then starts to operate. The cylinder (3) drives, by means of the piston rod (5), the pressing block (6) to move downwards, so that materials inside the positioning recess (14) are pressed, thereby preventing misalignment during pressing, and consequently improving the accuracy of the pressing tool.
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Description

A clamping fixture for motor machining Technical Field

[0001] This utility model relates to the field of clamping fixtures, specifically a clamping fixture for motor processing. Background Technology

[0002] As is well known, clamping fixtures used in motor machining are tools specifically designed to fix and clamp motor components to ensure the stability and precision of the components during machining. Clamping fixtures play a crucial role in motor machining, ensuring accurate installation and stable machining of components, thereby improving overall machining quality and efficiency. Most traditional clamping devices only have one clamping station. After clamping and machining the previous motor, the clamped motor needs to be removed before the next motor housing can be placed on the mounting base for clamping and machining. This results in insufficient continuity between the two clamping operations, leading to excessively long intervals between the two machining operations, which greatly reduces the clamping and machining efficiency.

[0003] To address the aforementioned issues, Chinese Patent Publication No. CNU discloses a clamping fixture for motor processing. After clamping, a drive mechanism rotates the placement seat, aligning the positioning slot with the screw-on position to tighten the screws on the motor housing, thus achieving fastening. Subsequently, the drive mechanism rotates the placement seat again, aligning the positioning slot with the unloading position to remove the clamped and fastened motor from the positioning slot. Furthermore, while the pressing mechanism is performing the clamping action, material can be loaded simultaneously. Compared to traditional single-station clamping devices, this clamping fixture uses four positioning slots that switch positions with the rotation of the placement seat, making the processing more continuous and significantly improving clamping efficiency.

[0004] While the comparative patent solved the problem of insufficient continuity between the two clamping operations, resulting in excessively long intervals between the two processes and greatly reducing the clamping efficiency, the device uses the rotation of the main gear to drive the rotation of the driven gear, so that the positioning placement groove is aligned with the alignment block, and the block clamps the workpiece inside the positioning placement groove. In this process, the block is prone to starting the clamping operation when the positioning placement groove is not aligned with the block, which can easily lead to clamping misalignment and reduce the accuracy of the device.

[0005] Regarding the aforementioned related technologies, the device is prone to situations where the positioning slot is not aligned with the pressure block before the pressure block begins to tighten, which can easily lead to pressure misalignment and reduce the accuracy of the device.

[0006] Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this utility model provides a clamping fixture for motor processing. This device has the advantages of preventing clamping misalignment, thereby improving the device's accuracy. It also solves the problem that when the positioning slot is not aligned with the clamping block, the clamping block starts to clamp, which can easily lead to clamping misalignment and reduce the device's accuracy.

[0009] (II) Technical Solution

[0010] To ensure the device avoids clamping misalignment and thus improves its accuracy, this invention provides the following technical solution: A clamping fixture for motor processing includes a base and a worktable. A frame is fixedly connected to one side of the base. A cylinder is fixedly connected to the inner top wall of the frame. A piston rod is provided at the bottom of the cylinder. A clamping block is fixedly connected to the bottom of the piston rod. A sensor is fixedly sleeved on the outer wall of the clamping block. A working groove is formed at the top of the base. A positioning groove is formed at the top of the worktable. An induction coil is fixedly connected to the top of the worktable. A rotating... The rotating rod has a rotating disk fixedly connected to its bottom, and a limit rod fixedly connected to its bottom. The inner bottom wall of the working groove is equipped with a driving component. The driving component drives the rotating rod and the worktable to rotate, which in turn drives the induction coil and the positioning groove to rotate. When the positioning groove is aligned with the pressing block, the sensor will detect the induction coil, and the transmitter will send a signal, which will be received by the receiver. The cylinder will then start working, and the cylinder will drive the pressing block downward through the piston rod, thereby pressing the material inside the positioning groove. This prevents the pressing from being misaligned, thus improving the accuracy of the device.

[0011] As a preferred embodiment of this utility model, a receiver is fixedly connected to the outer wall of the cylinder, and a transmitter is fixedly connected to the top of the sensor. When the sensor detects the induction coil, the transmitter sends a signal, which is then received by the receiver, and the cylinder begins to work.

[0012] As a preferred embodiment of this utility model, a slider is fixedly connected to the outer wall of the workbench, a support plate is fixedly connected to one side of the slider, a slide rail is provided on the inner side wall of the working groove, the outer wall of the slider is fixedly connected to the outer wall of the support plate, and the slider can rotate inside the slide rail.

[0013] As a preferred technical solution of this utility model, the support plate has a "ring" shaped structure and is fixedly sleeved with the worktable, so that the support plate can effectively support the worktable.

[0014] As a preferred embodiment of this utility model, the driving component includes a motor, the bottom of which is fixedly connected to the inner bottom wall of the working groove, and an auxiliary rod is fixedly connected to the output end of the motor via a coupling. When the motor is started, the output end of the motor can drive the auxiliary rod to rotate via the coupling.

[0015] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to the top of the auxiliary rod, and a driving rod is fixedly connected to the outer wall of the connecting plate. When the auxiliary rod rotates, it will drive the connecting plate to rotate, and then the connecting plate will drive the driving rod to rotate.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a clamping fixture for motor processing, which has the following beneficial effects:

[0018] 1. The drive component rotates the rotating rod and the worktable, which in turn rotates the induction coil and the positioning groove. When the positioning groove aligns with the clamping block, the sensor detects the induction coil, which in turn sends a signal to the transmitter and receives the signal. This causes the cylinder to start working, and the cylinder drives the clamping block downward through the piston rod, thus clamping the material inside the positioning groove. This prevents the clamping from being misaligned, thereby improving the accuracy of the device.

[0019] 2. By starting the motor, the output end of the motor can drive the auxiliary rod to rotate through the coupling. When the auxiliary rod rotates, it will drive the connecting plate to rotate, which in turn will drive the drive rod to rotate. This will then drive the rotating rod to rotate through the limit rod, which in turn will drive the worktable to rotate. This further meets the usage requirements of the device and is therefore worth promoting. Attached Figure Description

[0020] Figure 1 is a schematic diagram of a clamping fixture used for motor processing;

[0021] Figure 2 is a front sectional view of a clamping fixture used for motor machining;

[0022] Figure 3 is a schematic diagram of the cylinder in this application;

[0023] Figure 4 is an enlarged view of the structure at point A in Figure 2.

[0024] In the diagram: 1. Base; 2. Frame; 3. Cylinder; 4. Receiver; 5. Piston rod; 6. Clamping block; 7. Sensor; 8. Transmitter; 9. Working slot; 10. Worktable; 11. Support plate; 12. Slider; 13. Slide rail; 14. Positioning slot; 15. Induction coil; 16. Rotating rod; 17. Rotating disk; 18. Limiting rod; 19. Motor; 20. Auxiliary rod; 21. Connecting disk; 22. Drive rod. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] Referring to Figures 1-4, the first embodiment of this utility model provides a clamping fixture for motor processing, including a base 1 and a worktable 10. A frame 2 is fixedly connected to one side of the base 1. A cylinder 3 is fixedly connected to the inner top wall of the frame 2. The cylinder 3 is an existing device and will not be explained in detail here. A piston rod 5 is provided at the bottom of the cylinder 3. A clamping block 6 is fixedly connected to the bottom of the piston rod 5. A sensor 7 is fixedly sleeved on the outer wall of the clamping block 6. A working groove 9 is opened at the top of the base 1. A positioning groove 14 is opened at the top of the worktable 10. An induction coil 15 is fixedly connected to the top of the worktable 10. A rotating rod 16 is fixedly connected to the bottom of the worktable 10. A rotating disk 17 is fixedly connected to the bottom of the rotating rod 16. A limit rod 18 is fixedly connected to the bottom of the rotating disk 17. A driving component is provided on the inner bottom wall of the working groove 9.

[0028] A receiver 4 is fixedly connected to the outer wall of the cylinder 3, and a transmitter 8 is fixedly connected to the top of the sensor 7. When the sensor 7 senses the induction coil 15, the transmitter 8 will send a signal, which will then be received by the receiver 4, and the cylinder 3 will start to work.

[0029] A slider 12 is fixedly connected to the outer wall of the worktable 10. A support plate 11 is fixedly connected to one side of the slider 12. A slide 13 is provided on the inner side wall of the work groove 9. The outer wall of the slider 12 is fixedly connected to the outer wall of the support plate 11. The slider 12 can rotate inside the slide 13.

[0030] The support plate 11 has a "ring" shaped structure and is fixedly sleeved with the worktable 10. The support plate 11 can effectively support the worktable 10.

[0031] During use, the drive component rotates the rotating rod 16 and the worktable 10, which in turn rotates the induction coil 15 and the positioning groove 14. When the positioning groove 14 is aligned with the pressing block 6, the sensor 7 senses the induction coil 15, and the transmitter 8 sends a signal, which is then received by the receiver 4. The cylinder 3 then starts to work, and the cylinder 3 drives the pressing block 6 downward through the piston rod 5, thereby pressing the material inside the positioning groove 14.

[0032] Example 2

[0033] Referring to Figures 1-4, this is the second embodiment of the present invention. The driving component includes a motor 19. The bottom of the motor 19 is fixedly connected to the inner bottom wall of the working groove 9. An auxiliary rod 20 is fixedly connected to the output end of the motor 19 through a coupling. When the motor 19 is started, the output end of the motor 19 can drive the auxiliary rod 20 to rotate through the coupling.

[0034] A connecting plate 21 is fixedly connected to the top of the auxiliary rod 20, and a drive rod 22 is fixedly connected to the outer wall of the connecting plate 21. When the auxiliary rod 20 rotates, it will drive the connecting plate 21 to rotate, and then the connecting plate 21 will drive the drive rod 22 to rotate.

[0035] During use, the motor 19 is started. The output end of the motor 19 can drive the auxiliary rod 20 to rotate through the coupling. When the auxiliary rod 20 rotates, it will drive the connecting plate 21 to rotate. In turn, the connecting plate 21 will drive the drive rod 22 to rotate. Then, the limit rod 18 will drive the rotating rod 16 to rotate, which will drive the worktable 10 to rotate.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping fixture for motor machining, comprising a base (1) and a worktable (10), characterized in that: A frame (2) is fixedly connected to one side of the base (1). A cylinder (3) is fixedly connected to the inner top wall of the frame (2). A piston rod (5) is provided at the bottom of the cylinder (3). A pressing block (6) is fixedly connected to the bottom of the piston rod (5). A sensor (7) is fixedly sleeved on the outer wall of the pressing block (6). A working groove (9) is opened at the top of the base (1). A positioning groove (14) is opened at the top of the worktable (10). An induction coil (15) is fixedly connected to the top of the worktable (10). A rotating rod (16) is fixedly connected to the bottom of the worktable (10). A rotating disk (17) is fixedly connected to the bottom of the rotating rod (16). A limit rod (18) is fixedly connected to the bottom of the rotating disk (17). A driving component is provided on the inner bottom wall of the working groove (9).

2. The clamping fixture for motor processing according to claim 1, characterized in that: A receiver (4) is fixedly connected to the outer wall of the cylinder (3), and a transmitter (8) is fixedly connected to the top of the sensor (7).

3. The clamping fixture for motor processing according to claim 1, characterized in that: A slider (12) is fixedly connected to the outer wall of the workbench (10), and a support plate (11) is fixedly connected to one side of the slider (12). A slide (13) is provided on the inner side wall of the working groove (9), and the outer wall of the slider (12) is fixedly connected to the outer wall of the support plate (11).

4. A clamping fixture for motor processing according to claim 3, characterized in that: The support plate (11) has a "ring" shaped structure and is fixedly connected to the workbench (10).

5. A clamping fixture for motor processing according to claim 1, characterized in that: The driving component includes a motor (19), the bottom of which is fixedly connected to the inner bottom wall of the working groove (9), and the output end of the motor (19) is fixedly connected to an auxiliary rod (20) via a coupling.

6. A clamping fixture for motor processing according to claim 5, characterized in that: The top of the auxiliary rod (20) is fixedly connected to a connecting plate (21), and the outer wall of the connecting plate (21) is fixedly connected to a driving rod (22).