Electromagnetic core detection tool

By designing an electromagnetic core testing fixture, the length of the electromagnetic core can be automatically determined using a testing seat and a testing block. This solves the problems of high labor intensity and hand fatigue caused by handheld caliper measurement in existing technologies, and enables rapid and convenient electromagnetic core length testing.

CN224681483UActive Publication Date: 2026-08-25XIAMEN APG ELECTRIC
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Patent Information

Application Number
CN202522406686.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2026-08-25
Estimated Expiration
2035-11-13

AI Technical Summary

Technical Problem

In the current electromagnetic core measurement process, workers use calipers, which results in a large workload and easily causes hand soreness and fatigue.

Method used

Design an electromagnetic core testing fixture, including a testing seat, a placement block, a fixing block, and a testing block. The electromagnetic core rolls on the testing seat, and the contact or non-contact between the testing block and the push rod determines whether the length of the electromagnetic core is qualified or unqualified, reducing manual intervention.

Benefits of technology

It enables rapid and simple electromagnetic core length detection, reduces workload, avoids hand fatigue, and improves detection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electromagnet detection, concretely is a kind of electromagnetic core detection tool, including the detection seat for placing electromagnetic core, fixedly arranged on the upper surface of detection seat and placed block, fixed block, baffle, the placed block is lower than fixed block, the fixed block is lower than baffle, the electromagnetic core includes moving iron core, anti -drop block, push rod, the anti -drop block fixedly connected between moving iron core and push rod, the moving iron core is placed on placed block, the anti -drop block is located between placed block and fixed block, the push rod and the upper surface of fixed block contact, the fixed block is provided with detection block, the moving iron core rolls on placed block, the utility model has the effect that the labor amount is reduced without manual caliper detection, process is quick and simple, reaches.
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Description

Technical Field

[0001] This utility model relates to the technical field of electromagnet testing, specifically to an electromagnet core testing fixture. Background Technology

[0002] A pull electromagnet is an electromagnetic device that generates a linear pushing or pulling motion by energizing it. With its simple structure, low cost, and fast response, it plays a crucial "push-pull" role in various fields of automation control.

[0003] A common type of push-pull electromagnet includes a shell, an electromagnetic core, a stationary iron core, and a coil. The electromagnetic core is housed within the shell and includes a moving iron core and a push rod. The push rod is mounted on the moving iron core. When the coil is energized, it generates a magnetic field, magnetizing both the electromagnetic core and the stationary iron core simultaneously. Depending on the coil winding direction and the current direction, opposite magnetic poles (opposite poles opposite) or the same magnetic poles (like poles opposite) are formed at opposite ends of the stationary iron core and the electromagnetic core. After the electromagnetic core is manufactured, workers need to measure its length with calipers to ensure it meets the required standard.

[0004] For the above technical conditions, when measuring the electromagnetic core, the staff needs to use hand calipers to measure the length of the push rod. Over time, this can easily cause hand soreness and fatigue for the staff, resulting in excessive workload.

[0005] Based on this, this utility model designs an electromagnetic core testing fixture to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetic core testing fixture, comprising a testing seat for placing an electromagnetic core, wherein a placement block, a fixing block, and a stop block are fixedly disposed on the upper surface of the testing seat, the placement block being lower than the fixing block, the fixing block being lower than the stop block, the electromagnetic core comprising a moving iron core, an anti-detachment block, and a push rod, the anti-detachment block being fixedly connected between the moving iron core and the push rod, the moving iron core being placed on the placement block, the anti-detachment block being located between the placement block and the fixing block, the push rod being in contact with the upper surface of the fixing block, a testing block being disposed on the fixing block, and the moving iron core rolling on the placement block.

[0007] By adopting the above technical solution, the electromagnetic core is placed on the testing seat, and the moving iron core is placed on the placement block. At the same time, the anti-detachment block is located between the placement block and the fixed block, allowing the entire electromagnetic core to roll. When the push rod contacts the side wall of the testing block, it indicates that the length of the electromagnetic core is qualified. When the push rod does not contact the testing block, it indicates that the length of the electromagnetic core is too short and unqualified. There is no need for manual testing with calipers. The process is quick and simple, achieving the effect of reducing labor.

[0008] Preferably, the placement block has a first temporary placement groove, and the moving iron core is placed in the first temporary placement groove before rolling.

[0009] By adopting the above technical solution, before testing, the moving iron core is placed in the first temporary storage slot to prevent the electromagnetic core from moving and to facilitate the placement of the anti-detachment block.

[0010] Preferably, the placement block has a second temporary storage slot, and the electromagnetic core that is not in contact with the detection block rolls into the second temporary storage slot.

[0011] By adopting the above technical solution, after the unqualified electromagnetic core rolls, the moving iron core rolls into the second temporary storage groove, and the unqualified electromagnetic core is automatically collected, reducing the number of unqualified electromagnetic cores rolling out.

[0012] Preferably, the upper surface of the fixing block is provided with a dividing line, which is aligned with the side wall of the detection block.

[0013] By adopting the above technical solution, dividing lines are set to facilitate the identification of whether the push rod itself is excessively bent.

[0014] Preferably, the detection seat is tilted.

[0015] By adopting the above technical solution, the tilted setting facilitates the rolling of the electromagnetic core.

[0016] Preferably, the fixing block has a vertically formed insertion slot, and the detection block has a vertically fixed insertion block, which is inserted into the insertion slot.

[0017] By adopting the above technical solution, when testing different types of electromagnetic cores, the corresponding test blocks are installed according to the testing standards, which makes it easy to adapt to push rods of different lengths.

[0018] Preferably, the detection seat has a slot, and a baffle is inserted into the slot. The baffle is located between the placement block and the fixing block, and the baffle is in contact with the anti-detachment block.

[0019] By adopting the above technical solution, when testing different types of electromagnetic cores, corresponding baffles are installed according to the testing standards, which facilitates the adaptation of anti-detachment blocks in different positions.

[0020] In summary, this application has the following beneficial technical effects: the electromagnetic core is placed on the testing seat, the moving iron core is placed on the placement block, and the anti-detachment block is located between the placement block and the fixed block, allowing the entire electromagnetic core to roll. When the push rod contacts the side wall of the testing block, it indicates that the length of the electromagnetic core is qualified; when the push rod does not contact the testing block, it indicates that the length of the electromagnetic core is too short and unqualified. There is no need for manual testing with calipers, the process is quick and simple, and the workload is reduced. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure in this embodiment where the electromagnetic core is placed on the detection base; Figure 2 This is a schematic diagram of the detection seat in this embodiment; Figure 3 This is a schematic diagram of the installation structure of the baffle in this embodiment; Figure 4 This is a schematic diagram of the installation structure of the detection block in this embodiment.

[0023] The attached diagram lists the components represented by each number as follows: 1. Detection seat; 2. Placement block; 3. Fixing block; 4. Stop block; 5. Moving iron core; 6. Anti-detachment block; 7. Push rod; 8. Support block; 9. First temporary placement slot; 10. Second temporary placement slot; 11. Dividing line; 12. Insertion slot; 13. Insertion block; 14. Slot; 15. Baffle; 16. Detection block. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0026] Reference Figures 1-4An electromagnetic core testing fixture includes a testing base 1 for placing the electromagnetic core. A placement block 2, a fixing block 3, and a stop block 4 are fixedly disposed on the upper surface of the testing base 1. The placement block 2 is lower than the fixing block 3, and the fixing block 3 is lower than the stop block 4. The placement block 2, fixing block 3, and stop block 4 are integrally formed with the testing base 1. The electromagnetic core includes a moving iron core 5, an anti-detachment block 6, and a push rod 7. The anti-detachment block 6 is fixedly connected between the moving iron core 5 and the push rod 7. The moving iron core 5 is placed on the placement block 2, the anti-detachment block 6 is located between the placement block 2 and the fixing block 3, and the push rod 7 contacts the upper surface of the fixing block 3. A testing block 16 is disposed on the fixing block 3. A support block 8 is disposed at the bottom of the testing base 1, which raises one side of the testing base 1, causing the testing base 1 to be tilted, with the side without the testing block 16 being higher. Reference Figures 1-4 During testing, the electromagnetic core is pushed to roll. The tilted testing seat 1 facilitates pushing the electromagnetic core, allowing it to roll on the testing seat 1 towards the testing block 16. When the push rod 7 contacts the side wall of the testing block 16, it indicates that the length of the electromagnetic core is qualified. When the push rod 7 does not contact the testing block 16, it indicates that the length of the electromagnetic core is too short and unqualified. There is no need for manual testing with calipers. The process is quick and simple, reducing the amount of labor required.

[0027] Reference Figures 1-4 When the electromagnetic core is too long, the push rod 7 will abut against the stop block 4, and the anti-detachment block 6 will not be able to be placed between the placement block 2 and the fixing block 3, thus facilitating the detection of whether the electromagnetic core is too long. When the push rod 7 does not abut against the stop block 4, the anti-detachment block 6 still cannot be placed between the placement block 2 and the fixing block 3, indicating that the anti-detachment block 6 is too large, thus facilitating the detection of whether the anti-detachment block 6 is too large.

[0028] Reference Figures 1-4 The placement block 2 has a first temporary storage slot 9. Before the moving iron core 5 rolls, it is placed in the first temporary storage slot 9. Before testing, the moving iron core 5 is placed in the first temporary storage slot 9 to prevent the electromagnetic core from running away and to facilitate the placement of the anti-detachment block 6. The placement block 2 has a second temporary storage slot 10. Electromagnetic cores that are not in contact with the testing block 16 roll into the second temporary storage slot 10. After the unqualified electromagnetic cores roll, the moving iron core 5 rolls into the second temporary storage slot 10, automatically collecting the unqualified electromagnetic cores and reducing the number of unqualified electromagnetic cores rolling out.

[0029] Reference Figures 1-4 A dividing line 11 is provided on the upper surface of the fixed block 3. The dividing line 11 is aligned with the side wall of the detection block 16. The dividing line 11 is provided to facilitate identification of whether the push rod 7 itself is excessively bent.

[0030] Reference Figures 1-4The fixing block 3 has a vertically formed insertion slot 12, and the detection block 16 has a vertically fixed insertion block 13. The insertion block 13 is inserted into the insertion slot 12. Different sizes of detection blocks 16 are used to test different types of electromagnetic cores to adapt to the testing of different electromagnetic cores. The detection seat 1 has a slot 14, and a baffle 15 is inserted into the slot 14. The baffle 15 is located between the placement block 2 and the fixing block 3. The baffle 15 contacts the anti-detachment block 6, which is located between the baffle 15 and the fixing block. When testing different types of electromagnetic cores, the corresponding baffle 15 is installed according to the testing standard to facilitate the adaptation of anti-detachment blocks 6 in different positions.

[0031] The implementation principle of this embodiment is as follows: During testing, the electromagnetic core is placed on the testing seat 1, the moving iron core 5 is placed on the placement block 2, the anti-detachment block 6 is located between the placement block 2 and the fixed block 3, and the push rod 7 is placed on the fixed block 3; then the electromagnetic core is pushed to roll, so that the electromagnetic core rolls on the testing seat 1 toward the testing block 16. When the push rod 7 contacts the side wall of the testing block 16, it means that the length of the electromagnetic core is qualified. When the push rod 7 does not contact the testing block 16, it means that the length of the electromagnetic core is too short and unqualified. There is no need to manually use calipers for testing. The process is quick and simple, achieving the effect of reducing the amount of labor.

[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] 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. An electromagnetic core testing fixture, characterized in that: The device includes a testing base (1) for placing an electromagnetic core. A placement block (2), a fixing block (3), and a stop block (4) are fixedly arranged on the upper surface of the testing base (1). The placement block (2) is lower than the fixing block (3), and the fixing block (3) is lower than the stop block (4). The electromagnetic core includes a moving iron core (5), an anti-detachment block (6), and a push rod (7). The anti-detachment block (6) is fixedly connected between the moving iron core (5) and the push rod (7). The moving iron core (5) is placed on the placement block (2). The anti-detachment block (6) is located between the placement block (2) and the fixing block (3). The push rod (7) is in contact with the upper surface of the fixing block (3). A testing block (16) is arranged on the fixing block (3). The moving iron core (5) rolls on the placement block (2).

2. The electromagnetic core testing fixture according to claim 1, characterized in that: The placement block (2) has a first temporary placement groove (9), and the moving iron core (5) is placed in the first temporary placement groove (9) before it rolls.

3. The electromagnetic core testing fixture according to claim 2, characterized in that: The placement block (2) has a second temporary slot (10) on it, and the electromagnetic core that is not in contact with the detection block (16) rolls into the second temporary slot (10).

4. The electromagnetic core testing fixture according to claim 1, characterized in that: The upper surface of the fixing block (3) is provided with a dividing line (11), which is aligned with the side wall of the detection block (16).

5. The electromagnetic core testing fixture according to claim 1, characterized in that: The detection seat (1) is tilted.

6. The electromagnetic core testing fixture according to claim 1, characterized in that: The fixed block (3) has a vertically formed insertion slot (12), and the detection block (16) has a vertically fixed insertion block (13), which is inserted into the insertion slot (12).

7. The electromagnetic core testing fixture according to claim 1, characterized in that: The detection seat (1) has a slot (14) and a baffle (15) is inserted into the slot (14). The baffle (15) is located between the placement block (2) and the fixing block (3) and contacts the anti-detachment block (6).