A positioning fixture for testing the magnetic force of an electromagnetic lock

Abstract

This utility model relates to the field of electromagnetic lock technology and discloses a positioning fixture for testing the magnetic force of electromagnetic locks. It includes an equipment box, a dual-axis motor, and a limiting seat. The lower ends of the dual-axis motor and the limiting seat are fixedly connected to the upper end of the equipment box. A worm gear is bearing-connected to the rear end face of the limiting seat, and worm wheels are meshed on both sides of the worm gear. A cover is fixedly connected to the upper end face of the limiting seat. A first positioning pin and a second positioning pin are fixedly connected to the lower end face of the cover, and the lower ends of both the first and second positioning pins are fixedly connected to the upper end face of the limiting seat. The worm wheels are bearing-connected to the positioning pins, and a limiting arm is fixedly connected to the worm wheel. A gripper arm assembly is rotatably connected to the tail end of the limiting arm. This device can simultaneously clamp two electromagnetic locks using a single power source, thereby improving testing efficiency, reducing working time, and having a simple, stable, and easy-to-implement overall structure.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic lock technology, specifically to a positioning fixture for testing the magnetic force of an electromagnetic lock. Background Technology

[0002] Electromagnetic locks, also called magnetic locks, work on a principle similar to electromagnets, using an electric current to generate a magnetic field. When the current passes through a silicon steel sheet, it generates a strong magnetic force that attracts the iron plate, locking the door. Only a small amount of current is needed to generate a strong magnetic force. After the access control system identifies authorized personnel, it cuts off the power, the magnetic force disappears, and the door opens. However, existing devices still have certain drawbacks, such as: Application CN202220902775.8, entitled "A Positioning Fixture for Testing the Magnetic Force of an Electromagnetic Lock," includes a base plate with a rectangular cross-section. The bottom edges of the base plate are connected and fixed to a worktable via mounting plates. A positioning structure is provided on the top surface of the base plate to enable the electromagnetic lock to be quickly connected to the base plate. The positioning structure includes a first positioning plate located at one corner of the upper surface of the base plate, second positioning plates located on adjacent sides of the first positioning plate, and a third positioning plate located diagonally opposite the first positioning plate. This device can only fix one electromagnetic lock at a time, thus affecting work efficiency and failing to meet usage requirements. Therefore, a positioning fixture for testing the magnetic force of an electromagnetic lock is proposed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a positioning fixture for testing the magnetic force of an electromagnetic lock, in order to solve the problem mentioned in the background art that the existing positioning fixture for testing the magnetic force of an electromagnetic lock can only fix one electromagnetic lock during use, thus affecting work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes an equipment housing, a dual-axis motor, and a limiting seat. The lower ends of the dual-axis motor and the limiting seat are fixedly connected to the upper end of the equipment housing. A worm gear is bearing-connected to the rear end face of the limiting seat, and worm wheels are meshed on both sides of the worm gear. A cover is fixedly connected to the upper end face of the limiting seat. A first positioning pin and a second positioning pin are fixedly connected to the lower end face of the cover, and the lower ends of both the first and second positioning pins are fixedly connected to the upper end face of the limiting seat. The worm wheel is bearing-connected to the first positioning pin, and a limiting arm is fixedly connected to the worm wheel. A gripper arm assembly is rotatably connected to the tail end of the limiting arm.

[0005] The above technical solution facilitates the rapid positioning and fixing of the two electromagnetic locks, thereby improving work efficiency.

[0006] As a preferred embodiment of this utility model, a limiting rod is rotatably connected to the second positioning pin, and the limiting rod is rotatably connected to the outer shell of the gripper arm assembly.

[0007] By adopting the above technical solution, the electromagnetic lock can be positioned more stably, preventing it from shaking or shifting during testing, thereby improving the accuracy and safety of the test.

[0008] As a preferred embodiment of this utility model, the first positioning pin, the second positioning pin, the limiting arm, the gripper arm assembly, and the limiting rod are all symmetrically arranged about the center of the limiting seat.

[0009] The above technical solution facilitates quick and accurate installation and disassembly by operators, improving work efficiency. At the same time, it ensures the stability and balance of the tooling structure, so that the electromagnetic lock is subjected to uniform force during the test, further improving the accuracy and reliability of the test.

[0010] As a preferred embodiment of this utility model, the limiting seats are symmetrically arranged about the center of the upper surface of the equipment box; and transmission rods are fixedly connected to both ends of the shaft of the dual-axis motor.

[0011] By adopting the above technical solutions, the flexibility and comprehensiveness of the testing can be improved.

[0012] As a preferred embodiment of this utility model, the outer end faces on both sides of the transmission rod are fixedly connected to the inner end face of the worm gear.

[0013] The above technical solution facilitates improved ease of operation and automation.

[0014] As a preferred embodiment of this utility model, a storage box is provided on the front end face of the equipment box, and an anti-slip groove is provided on the upper end face of the equipment box.

[0015] The above technical solution facilitates the storage and retrieval of tools by operators, improves work efficiency, and increases the friction on the upper surface of the equipment box to prevent the tooling structure from sliding during testing, thus ensuring the stability of the test.

[0016] As a preferred embodiment of this utility model, an auxiliary platform is fixedly connected to the upper surface of the equipment box, and a writing board is fixedly connected to the upper surface of the auxiliary platform; a pen holder is fixedly connected to the upper surface of the auxiliary platform.

[0017] The above technical solution facilitates operators in recording data and precautions during testing, improving the convenience and efficiency of testing.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the device can clamp two electromagnetic locks simultaneously with a single power source, thereby improving testing efficiency, reducing working time, and the overall structure is simple, stable, and easy to implement.

[0019] 1. When using, place the electromagnetic lock in the groove on the equipment box, then start the dual-axis motor. The dual-axis motor drives the worm gear to rotate forward through the transmission rod, and the worm gear drives the worm wheel to rotate. 2. When the worm gear rotates, it will synchronously drive the limit arm to rotate. The limit arm drives the gripper arm assembly to move towards the electromagnetic lock in the placement slot. At the same time, the limit rod limits the stroke of the gripper arm assembly. This allows the gripper arm assembly to tightly hold the electromagnetic lock, achieving stable positioning of the electromagnetic lock and facilitating subsequent magnetic force testing. 3. The self-locking characteristic of the worm gear enables the worm gear to automatically lock after rotating to the set position, preventing the electromagnetic lock position from shifting due to external vibration or interference; 4. The writing board on the auxiliary table allows operators to directly record test data, observe results, and note any precautions when testing the magnetic force of the electromagnetic lock. This design not only improves the convenience of testing but also makes the operation process more intuitive, helping to reduce operational errors and further improve the accuracy and efficiency of testing. At the same time, the writing board also makes the recording of test data more organized, facilitating subsequent data analysis and organization. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the connection structure between the limiting seat and the cover of this utility model; Figure 3 This is a schematic diagram of the worm gear and worm wheel connection structure of this utility model; Figure 4 This is a top view of the structure of this utility model; Figure 5 This is a schematic diagram of the connection structure between the auxiliary table and the writing board of this utility model.

[0021] In the diagram: 1. Equipment box; 2. Dual-axis motor; 3. Limit seat; 4. Worm gear; 5. Worm wheel; 6. Cover; 7. Positioning pin No. 1; 8. Positioning pin No. 2; 9. Limit arm; 10. Gripper arm assembly; 11. Limit rod; 12. Transmission rod; 13. Auxiliary table; 14. Writing board; 15. Pen holder. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 The technical solution of this utility model is as follows: Example 1: To address the problem that existing positioning fixtures for electromagnetic lock magnetic force testing can only fix one electromagnetic lock at a time, thus affecting work efficiency, please refer to the following for details. Figures 1-4 The system includes an equipment box 1, a dual-axis motor 2, and a limiting seat 3. The lower ends of the dual-axis motor 2 and the limiting seat 3 are fixedly connected to the upper end of the equipment box 1. A worm gear 4 is connected to the rear end of the limiting seat 3 via a bearing, and worm wheels 5 are meshed on both sides of the worm gear 4. A cover 6 is fixedly connected to the upper end of the limiting seat 3. A first positioning pin 7 and a second positioning pin 8 are fixedly connected to the lower end of the cover 6, and the lower ends of the first positioning pin 7 and the second positioning pin 8 are fixedly connected to the upper end of the limiting seat 3. The worm wheel 5 is connected to the first positioning pin 7 via a bearing, and a limiting arm 9 is fixedly connected to the worm wheel 5. A gripper arm assembly 10 is rotatably connected to the tail end of the limiting arm 9, which facilitates quick positioning and fixing of the two electromagnetic locks and improves work efficiency. The second positioning pin 8 is rotatably connected to the limiting rod 11, and the limiting rod 11 is rotatably connected to the outer shell of the gripper arm assembly 10, which facilitates a more stable positioning of the electromagnetic lock and prevents the electromagnetic lock from shaking or shifting during the test, thereby improving the accuracy and safety of the test. The No. 1 positioning pin 7, the No. 2 positioning pin 8, the limiting arm 9, the gripper arm assembly 10, and the limiting rod 11 are all symmetrically arranged about the center of the limiting seat 3, which facilitates quick and accurate installation and disassembly by operators, improves work efficiency, and ensures the stability and balance of the tooling structure, so that the electromagnetic lock is subjected to uniform force during the test, further improving the accuracy and reliability of the test. The limit seats 3 are symmetrically arranged about the center of the upper end face of the equipment box 1; the two shaft ends of the dual-axis motor 2 are fixedly connected to the transmission rods 12 to improve the flexibility and comprehensiveness of the test. Both outer end faces of the transmission rod 12 are fixedly connected to the inner end face of the worm gear 4, which facilitates improved operation convenience and automation. A storage box is provided on the front side of the equipment box 1, and an anti-slip groove is provided on the upper side of the equipment box 1 to facilitate the storage and retrieval of tools by the operator, improve work efficiency, and at the same time increase the friction of the upper side of the equipment box 1 to prevent the tooling structure from sliding during the test and ensure the stability of the test. Example 2: The difference between this example and Example 1 is the addition of a note-taking device, such as... Figure 5 As shown, an auxiliary platform 13 is fixedly connected to the upper surface of the equipment box 1, and a writing board 14 is fixedly connected to the upper surface of the auxiliary platform 13; a pen holder 15 is fixedly connected to the upper surface of the auxiliary platform 13, which facilitates the operator to record data and precautions during the test, thereby improving the convenience and efficiency of the test. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for testing the magnetic force of an electromagnetic lock, comprising an equipment box (1), a dual-axis motor (2), and a limiting seat (3), wherein the lower end faces of the dual-axis motor (2) and the limiting seat (3) are fixedly connected to the upper end face of the equipment box (1), characterized in that: The rear end face of the limiting seat (3) is connected to a worm gear (4), and both sides of the worm gear (4) are meshed with worm wheels (5); the upper end face of the limiting seat (3) is fixedly connected to a cover (6); the lower end face of the cover (6) is fixedly connected to a first positioning pin (7) and a second positioning pin (8), and the lower end faces of the first positioning pin (7) and the second positioning pin (8) are fixedly connected to the upper end face of the limiting seat (3); the worm wheel (5) is bearing connected to the first positioning pin (7), and a limiting arm (9) is fixedly connected to the worm wheel (5); the tail end of the limiting arm (9) is rotatably connected to a gripper arm assembly (10).

2. The positioning fixture for testing the magnetic force of an electromagnetic lock according to claim 1, characterized in that: The second positioning pin (8) is rotatably connected to a limiting rod (11), and the limiting rod (11) is rotatably connected to the outer shell of the gripper arm assembly (10).

3. The positioning fixture for testing the magnetic force of an electromagnetic lock according to claim 2, characterized in that: The first positioning pin (7), the second positioning pin (8), the limiting arm (9), the gripper arm assembly (10), and the limiting rod (11) are all symmetrically arranged about the center of the limiting seat (3).

4. The positioning fixture for testing the magnetic force of an electromagnetic lock according to claim 3, characterized in that: The limiting seats (3) are symmetrically arranged about the center of the upper end face of the equipment box (1); the two shaft ends of the dual-axis motor (2) are fixedly connected with transmission rods (12).

5. The positioning fixture for testing the magnetic force of an electromagnetic lock according to claim 4, characterized in that: The outer end faces on both sides of the transmission rod (12) are fixedly connected to the inner end face of the worm (4).

6. The positioning fixture for testing the magnetic force of an electromagnetic lock according to claim 5, characterized in that: The front end of the equipment box (1) is provided with a storage box, and the upper end of the equipment box (1) is provided with an anti-slip groove.

7. The positioning fixture for testing the magnetic force of an electromagnetic lock according to claim 6, characterized in that: An auxiliary table (13) is fixedly connected to the upper surface of the equipment box (1), and a writing board (14) is fixedly connected to the upper surface of the auxiliary table (13); a pen holder (15) is fixedly connected to the upper surface of the auxiliary table (13).

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