Magnetic material cohesive force testing mechanism
By designing a motor-driven hollow rotary platform and electric cylinder system, the problems of low efficiency and low precision of the manual compression method in the magnetic material adhesion force test were solved, realizing automated and accurate magnetic material adhesion force testing and improving test accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-03-03
AI Technical Summary
The existing manual compression method for testing the adhesion force of magnetic materials is inefficient, labor-intensive, has poor testing accuracy, and cannot maintain a stable constant downward pressure, resulting in large testing errors.
A magnetic material adhesion force testing mechanism was designed, which adopts a motor-driven hollow rotating platform and an electric cylinder system to achieve automated positioning of the ejector pin and constant pressure pressing. Combined with the electric cylinder driver and guide sleeve structure, an automated and accurate testing process is achieved.
It enables automated testing of magnetic material bonding strength, improving testing accuracy and stability. The structure is robust, data recording is convenient, and testing efficiency and data analysis traceability are enhanced.
Smart Images

Figure CN223966438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of measurement and control technology, and in particular to a testing mechanism for the bonding force of magnetic materials. Background Technology
[0002] Magnetic bonding strength refers to the adhesive strength of a magnet formed by mixing magnetic powder with a binder and then molding and curing it. This adhesive strength allows the magnet to maintain its shape and magnetic properties.
[0003] Currently, the adhesion strength of magnetic materials is tested using a compression test, which assesses the bond strength of the adhesive by applying compressive force. During the test, a compressive force perpendicular to the contact surface is applied. By measuring the maximum value of the applied compressive force, the compressive strength of the magnetic material adhesion can be evaluated.
[0004] The current method for testing the magnetic bonding strength of products still uses manual compression testing. The magnetic material to be tested on the product is pressed into the appropriate position by a constant downward pressure, which proves that the magnetic bonding strength is qualified. However, manual testing is inefficient, consumes a lot of manual labor, cannot maintain a stable constant downward pressure, has poor testing accuracy, and has a large testing error. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model designs a testing mechanism for the bonding force of magnetic materials.
[0006] The present invention adopts the following technical solution:
[0007] A magnetic material adhesion testing mechanism includes a frame on which a motor is mounted. A hollow rotating platform is fixedly connected to the bottom output end of the motor. The hollow rotating platform includes a rotating flange. An electric cylinder mounting ring is fixedly mounted on the bottom of the rotating flange. Multiple electric cylinders are evenly installed along the circumference of the inner edge of the electric cylinder mounting ring. A pin fixing guide rod is connected to the bottom output end of the electric cylinder. A pin is fixedly mounted on the bottom of the pin fixing guide rod. A positioning plate is fixedly mounted on the outer edge of the bottom of the electric cylinder mounting ring via a spacer rod. A guide sleeve is installed on the positioning plate corresponding to the pin fixing guide rod. The pin fixing guide rod is inserted into the corresponding guide sleeve and moves up and down along the guide sleeve.
[0008] Preferably, the bottom output end of the electric cylinder is fixedly connected to an electric cylinder connector block, and multiple ejector pin fixing guide rods are fixedly installed side by side on the electric cylinder connector block.
[0009] Preferably, the ejector pin fixing guide rod is fixedly installed on the electric cylinder connector connecting block by an ejector pin step cap.
[0010] Preferably, an electric cylinder driver is mounted on the frame.
[0011] Preferably, the frame includes a base plate, an upright plate, and a fixed plate, which are fixedly connected in sequence.
[0012] Preferably, reinforcing ribs are installed between the base plate and the upright plate.
[0013] Preferably, the electric cylinder is fixedly connected to the electric cylinder mounting ring via an electric cylinder mounting block.
[0014] Preferably, the hollow rotating platform is provided with a protective cover.
[0015] The beneficial effects of this utility model are: This utility model designs a magnetic material bonding force testing mechanism, which realizes automated testing of the magnetic material bonding force of products. It has a high degree of automation, high testing accuracy, adjustable testing pressure, stable structure, and can record test data, which is convenient for traceability and analysis. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of a hollow rotating platform in this utility model;
[0018] In the diagram: 1.1 Base plate, 1.2 Reinforcing rib, 1.3 Vertical plate, 1.4 Electric cylinder driver, 1.5 Fixed plate, 1.6 Motor, 1.7 Hollow rotating platform, 1.8 Protective cover, 2.1 Ejector pin, 2.2 Ejector pin fixing guide rod, 2.3 Guide sleeve, 2.4 Positioning plate, 2.5 Spacer rod, 2.6 Electric cylinder, 2.7 Electric cylinder mounting ring, 2.8 Electric cylinder mounting block, 2.9 Rotary flange, 2.10 Electric cylinder connector connecting block, 2.11 Ejector pin step cap. Detailed Implementation
[0019] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:
[0020] Example: Figure 1 and Figure 2 As shown, a magnetic material adhesion testing mechanism includes a frame on which a motor 1.6 is mounted. A hollow rotating platform 1.7 is fixedly connected to the bottom output end of the motor. The hollow rotating platform includes a rotating flange 2.9. An electric cylinder mounting ring 2.7 is fixedly mounted at the bottom of the rotating flange. Three electric cylinders 2.6 are evenly mounted along the circumference of the inner edge of the electric cylinder mounting ring. A pin fixing guide rod 2.2 is connected to the bottom output end of the electric cylinder. A pin 2.1 is fixedly mounted at the bottom of the pin fixing guide rod. A positioning plate 2.4 is fixedly mounted on the outer edge of the bottom of the electric cylinder mounting ring via a spacer rod 2.5. A guide sleeve 2.3 is mounted on the positioning plate corresponding to the pin fixing guide rod. The pin fixing guide rod is inserted into the corresponding guide sleeve and moves up and down along the guide sleeve.
[0021] The bottom output end of the electric cylinder is fixedly connected to an electric cylinder connector block 2.10, and two ejector pin fixing guide rods are fixedly installed side by side on the electric cylinder connector block.
[0022] The ejector pin fixing guide rod is fixedly mounted on the electric cylinder connector connecting block via the ejector pin step cap 2.11. The electric cylinder driver 1.4 is mounted on the frame.
[0023] The frame includes a base plate 1.1, an upright plate 1.3, and a fixed plate 1.5, which are sequentially and fixedly connected. A reinforcing rib 1.2 is installed between the base plate and the upright plate.
[0024] The electric cylinder is fixedly connected to the electric cylinder mounting ring via the electric cylinder mounting block 2.8. A protective cover 1.8 is installed outside the hollow rotating platform.
[0025] When using this invention, after the magnetic material of the product is transferred to the workstation, the motor drives the hollow rotating platform to rotate, and the position of the ejector pin in the circumferential direction is adjusted to ensure that the ejector pin can press the magnetic material. Then, the electric cylinder controls the ejector pin fixing guide rod and the ejector pin to press down, while ensuring that the ejector pin presses the magnetic material with a constant and appropriate pressure. After the electric cylinder drives the ejector pin to move to a suitable displacement, the magnetic material is pressed into a suitable position, which proves that the adhesion of the magnetic material is qualified.
[0026] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.
Claims
1. A testing mechanism for the adhesion force of magnetic materials, comprising a frame, characterized in that, A motor is mounted on the frame, and a hollow rotating platform is fixedly connected to the bottom output end of the motor. The hollow rotating platform includes a rotating flange, and an electric cylinder mounting ring is fixedly installed at the bottom of the rotating flange. Multiple electric cylinders are evenly installed along the circumference of the inner edge of the electric cylinder mounting ring. A pin fixing guide rod is connected to the bottom output end of the electric cylinder, and a pin is fixedly installed at the bottom of the pin fixing guide rod. A positioning plate is fixedly installed on the outer edge of the bottom of the electric cylinder mounting ring through a spacer rod. A guide sleeve is installed on the positioning plate corresponding to the pin fixing guide rod. The pin fixing guide rod is inserted into the corresponding guide sleeve and moves up and down along the guide sleeve.
2. The magnetic material adhesion testing mechanism according to claim 1, characterized in that, The bottom output end of the electric cylinder is fixedly connected to an electric cylinder connector block, and multiple ejector pin fixing guide rods are fixedly installed side by side on the electric cylinder connector block.
3. The magnetic material adhesion testing mechanism according to claim 2, characterized in that, The ejector pin fixing guide rod is fixedly installed on the electric cylinder connector connecting block by the ejector pin step cap.
4. The magnetic material adhesion testing mechanism according to claim 1, characterized in that, An electric cylinder driver is mounted on the frame.
5. The magnetic material adhesion testing mechanism according to claim 1, characterized in that, The frame includes a base plate, an upright plate, and a fixed plate, which are fixedly connected in sequence.
6. The magnetic material adhesion force testing mechanism according to claim 5, characterized in that, Reinforcing ribs are installed between the base plate and the vertical plate.
7. The magnetic material adhesion testing mechanism according to claim 1, characterized in that, The electric cylinder is fixedly connected to the electric cylinder mounting ring via an electric cylinder mounting block.
8. The magnetic material adhesion testing mechanism according to claim 1, characterized in that, The hollow rotating platform is equipped with a protective cover.