A testing device for an electromagnet

Abstract

This utility model discloses a testing device for electromagnets, including a frame, a tooling plate on the upper side of the frame, a first linear module on the tooling plate, a testing station on the tooling plate, and a comprehensive testing instrument below the frame platform. A fixed fixture is detachably mounted on the upper side of the first linear module and moved to the testing station via the first linear module. The testing station includes a second linear module arranged along the front-rear direction on the upper side of the tooling plate. A first cylinder is mounted on the slider of the second linear module, and a mounting bracket is mounted on the movable end of the first cylinder. Two force sensors are arranged side-by-side on one side of the mounting bracket, and a locking block is mounted on the front of each force sensor. This utility model solves the problems of low efficiency, reliance on manual labor, and unstable testing associated with existing electromagnet testing methods that require placing electromagnets one by one at different testing stations.

Description

Technical Field

[0001] This utility model relates to the technical field of electromagnet testing equipment, specifically a testing device for electromagnets. Background Technology

[0002] Electromagnets are key components widely used in motors, relays, solenoid valves, lifting equipment, and automation control, making their performance stability and reliability crucial. Rigorous quality testing of electromagnets is an essential part of the production process. Common testing items include line resistance testing, withstand voltage testing, attractive force testing, and magnetic retention force testing. Currently, operators need to place each electromagnet individually at different testing stations to perform these tests. These four processes often require full employee involvement, which is not only labor-intensive but also inefficient, and prone to human error leading to unstable test results and affecting product quality consistency. Therefore, it is necessary to design a testing device for electromagnets that can improve testing efficiency and ensure testing stability to meet current usage requirements. Utility Model Content

[0003] This invention provides a testing device for electromagnets, which can solve the problems of low efficiency, reliance on manual labor, and unstable testing that exist in existing electromagnet testing methods, which require placing electromagnets one by one at different testing stations.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a testing device for electromagnets, comprising a frame, a tooling plate on the upper side of the frame, a first linear module on the tooling plate along its length, a testing station on the tooling plate located at the middle of the first linear module, and a comprehensive testing instrument below the frame table; a fixed fixture, detachably mounted on the upper side of the first linear module and movable to the testing station via the first linear module; the testing station includes a second linear module mounted on the upper side of the tooling plate along the front-rear direction, a first cylinder mounted on the slider of the second linear module, the first... The cylinder's movable end is equipped with a vertically adjustable mounting bracket. Two force sensors are arranged side-by-side on one side of the mounting bracket. A snap-fit ​​block for docking with an electromagnet is installed at the front of each force sensor. A fixed bracket is provided on the side of the second linear module. Multiple vertically movable probes are arranged side-by-side on the side of the fixed bracket away from the force sensors. The probes are electrically connected to the integrated tester. Line resistance, withstand voltage, attractive force, and magnetic retention force tests are completed in one clamping operation, simplifying the process and reducing throughput losses. Automatic transfer of the fixed fixture is achieved through the first and second linear modules, reducing manual intervention and significantly improving testing efficiency.

[0005] As a supplement to the technical solution described in this utility model, the fixing fixture includes a base plate, a plurality of first fixing blocks are arranged side by side on the upper front part of the base plate, and a second fixing block is correspondingly arranged on the upper rear part of the base plate. The corresponding first fixing blocks and second fixing blocks are used to fix electromagnets. Two electrodes are arranged side by side on one side of the first fixing block. The fixing fixture is detachably mounted on the upper side of the slider of the first linear module and can be moved to the detection station through the first linear module. The fixing fixture is used to fix multiple electromagnets.

[0006] As a supplement to the technical solution described in this utility model, the first fixing block is provided with a slot for matching the edge shape of the electromagnet. The slot matches the edge shape of the electromagnet, providing coarse positioning for the electromagnet.

[0007] As a supplement to the technical solution described in this utility model, a notch is provided in the middle of the second fixing block, and the electrode can be inserted into the notch to connect with the terminal of the electromagnet, so that the connection between the electrode and the wire is tighter and more reliable, ensuring stable transmission of electrical signals during electrical testing and improving the accuracy of testing.

[0008] As a supplement to the technical solution described in this utility model, the slider of the first linear module is provided with a mounting plate, the mounting plate is provided with a protrusion along its length direction, and the lower side of the base plate is provided with a mounting groove that matches the protrusion. The mounting groove is installed on the protrusion, and the fixing fixture is fixed on the first linear module.

[0009] As a supplement to the technical solution described in this utility model, a transmission mechanism is provided on the front side of the frame along the left and right direction. The transmission mechanism is used to transport the fixed tooling, so as to realize its flow in the loading area and unloading area of ​​the device, thereby improving the continuity and efficiency of the overall testing process.

[0010] As a supplement to the technical solution described in this utility model, a second cylinder is installed on the side of the fixed bracket away from the force sensor to drive the probe to move up and down. A plurality of third cylinders are arranged side by side on the side of the fixed bracket close to the force sensor. The second cylinder drives the probe to move up and down, controlling the electrical connection or separation of the probe and the electromagnet. The third cylinder drives the pressure block to move, pressing the electromagnet during the test, further enhancing the stability of the electromagnet during the test process.

[0011] As a supplement to the technical solution described in this utility model, two pressure blocks are arranged side by side on the movable end of the third cylinder. The pressure blocks are driven by the third cylinder and act directly on the electromagnet to help fix the electromagnet.

[0012] As a supplement to the technical solution described in this utility model, a touch screen is provided on the right side of the frame, located on one side of the first linear module, to facilitate operators in setting parameters, controlling the operation of the device, and viewing test data.

[0013] As a supplement to the technical solution described in this utility model, a photoelectric switch is provided on the left side of the first linear module. When the start button is pressed, the photoelectric switch detects whether a fixed fixture is placed on the first linear module.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This system completes line resistance, withstand voltage, attraction force, and magnetic retention force tests in a single setup, simplifying the process and reducing throughput losses. The first and second linear modules enable automated transfer of the fixed fixture, minimizing manual intervention and significantly improving testing efficiency. Force sensors, probes, and a comprehensive testing instrument are used to test the electromagnets. This solution addresses the problems of low efficiency, reliance on manual labor, and unstable testing associated with existing electromagnet testing methods that require placing each electromagnet individually at different testing stations. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention with the top frame removed;

[0018] Figure 3 This is a three-dimensional structural diagram of the testing station of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the fixing fixture of this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the electromagnet testing process according to this utility model;

[0021] Figure 6 This is a schematic diagram of the mounting groove and protrusion of this utility model.

[0022] Figure label:

[0023] 1. Frame, 2. Tooling plate, 3. First linear module, 4. Inspection station, 5. Fixture, 6. Transmission mechanism, 7. Mounting plate, 8. Electromagnet, 9. Touch screen, 10. Photoelectric switch, 11. Integrated tester, 41. Second linear module, 42. First cylinder, 43. Mounting bracket, 44. Force sensor, 45. Clip block, 46. Fixing bracket, 47. Probe, 48. Second cylinder, 49. Third cylinder, 40. Pressure block, 51. Base plate, 52. First fixing block, 53. Second fixing block, 54. Electrode, 55. Mounting slot, 56. Notch, 57. Slot, 71. Protrusion. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] The embodiments of this utility model relate to a testing device for electromagnets, such as... Figure 1-6As shown, the device includes a frame 1, with a tooling plate 2 on its upper side. A first linear module 3 is arranged on the tooling plate 2 along its length. A testing station 4 is located in the middle of the first linear module 3 on the tooling plate 2. A comprehensive tester 11 is located below the table of the frame 1. The comprehensive tester 11 is existing technology, so its structure will not be described in detail. The comprehensive tester 11 can refer to the comprehensive tester produced by Qingdao Aino Instrument Co., Ltd., model AN8A51 B1. F60-NBXM02; Fixed fixture 5, detachably mounted on the upper side of the first linear module 3 and moved to the detection station 4 via the first linear module 3; The detection station 4 includes a second linear module 41 mounted on the upper side of the fixture plate 2 along the front-back direction. A first cylinder 42 is mounted on the slider of the second linear module 41. The movable end of the first cylinder 42 is equipped with a vertically adjustable mounting bracket 43. Two force sensors 44 are arranged side by side on one side of the mounting bracket 43. A snap-fit ​​block 45 for docking with an electromagnet 8 is mounted on the front of each force sensor 44. The force sensors 44 can be purchased directly from the market. The force sensors 44 are existing technology, so their structure will not be described in detail. For the brand of the force sensors 44, please refer to N. The TS model, LRM-500N, has a fixed bracket 46 on the side of the second linear module 41. A force sensor 44 can be used to test the attraction force and magnetic retention force of the electromagnet 8. Multiple vertically movable probes 47 are arranged side-by-side on the side of the fixed bracket 46 away from the force sensor 44. The probes 47 are electrically connected to the integrated tester 11. Two displays are located on the upper part of the frame 1, showing the test results of the force sensor 44 and the integrated tester 11, respectively. Line resistance, withstand voltage, attraction force, and magnetic retention force tests are completed in a single clamping operation, simplifying the process and reducing transfer losses. Automatic transfer of the fixed fixture 5 is achieved through the first linear module 3 and the second linear module 41, reducing manual intervention and significantly improving testing efficiency.

[0026] In this embodiment, as Figure 4 As shown, the fixing fixture 5 includes a base plate 51. Multiple first fixing blocks 52 are arranged side by side on the upper front part of the base plate 51, and a second fixing block 53 is arranged correspondingly on the upper rear part of the base plate 51. The corresponding first fixing blocks 52 and second fixing blocks 53 are used to fix the electromagnets 8. Two electrodes 54 are arranged side by side on one side of the first fixing block 52. The fixing fixture 5 is detachably mounted on the upper side of the slider of the first linear module 3 and can be moved to the detection station 4 through the first linear module 3. The fixing fixture 5 is used to fix multiple electromagnets 8.

[0027] In this embodiment, as Figure 4As shown, the first fixing block 52 is provided with a slot 57 for matching the edge shape of the electromagnet 8. The slot 57 matches the edge shape of the electromagnet 8 to provide coarse positioning for the electromagnet 8.

[0028] In this embodiment, as Figure 4 As shown, a notch 56 is provided in the middle of the second fixing block 53, and the electrode 54 can be inserted into the notch 56 to connect with the terminal of the electromagnet 8, so that the electrode 54 and the wire are connected more tightly and reliably, ensuring stable transmission of electrical signals during electrical testing and improving test accuracy.

[0029] In this embodiment, as Figure 6 As shown, the slider of the first linear module 3 is provided with a mounting plate 7, and the mounting plate 7 is provided with a protrusion 71 along its length direction. The lower side of the base plate 51 is provided with a mounting groove 55 that matches the protrusion 71. The mounting groove 55 is installed on the protrusion 71, and the fixing fixture 5 is fixed on the first linear module 3.

[0030] In this embodiment, as Figure 1 As shown, a transmission mechanism 6 is provided on the front side of the frame 1 along the left and right direction. The transmission mechanism 6 is used to transport the fixed tooling 5, so as to realize its flow in the loading area and unloading area of ​​the device, thereby improving the continuity and efficiency of the overall testing process.

[0031] In this embodiment, as Figure 3 As shown, a second cylinder 48 is installed on the side of the fixed bracket 46 away from the force sensor 44 to drive the probe 47 to move up and down. A plurality of third cylinders 49 are arranged side by side on the side of the fixed bracket 46 close to the force sensor 44. The second cylinder 48 drives the probe 47 to move up and down, controlling the electrical connection or separation of the probe 47 and the electromagnet 8. The third cylinders 49 drive the pressure block 40 to move, pressing the electromagnet 8 during the test, further enhancing the stability of the electromagnet during the test.

[0032] In this embodiment, as Figure 3 As shown, two pressure blocks 40 are arranged side by side on the movable end of the third cylinder 49. The pressure blocks 40 are driven by the third cylinder 49 and act directly on the electromagnet 8 to help fix the electromagnet 8.

[0033] In this embodiment, as Figure 1 As shown, a touch screen 9 is provided on the right side of the frame 1, located on one side of the first linear module 3, to facilitate operators in setting parameters, controlling the operation of the device, and viewing test data.

[0034] In this embodiment, as Figure 1As shown, a photoelectric switch 10 is provided on the left side of the first linear module 3. When the start button is pressed, the photoelectric switch 10 detects whether a fixed fixture 5 is placed on the first linear module 3.

[0035] In this embodiment, as Figure 1 As shown, firstly, the electromagnet 8 to be tested is placed on the fixed fixture 5. The first fixing block 52 and the second fixing block 53 of the fixed fixture 5 are used to firmly fix the electromagnet 8, so that the terminals of the electromagnet 8 are accurately connected with the electrodes 54. Then, the fixed fixture 5 is installed on the mounting plate 7 of the first linear module 3. After the photoelectric switch 10 detects that the fixed fixture 5 is in place, the indicator light on the frame 1 will turn green. Pressing the start button will move the fixed fixture 5 from the initial position to the detection station 4 through the slider of the first linear module 3. When the fixed fixture 5 reaches the detection station 4, the third cylinder 49 can drive the pressure block 40 to descend and press the electromagnet 8. The first cylinder 42 drives the mounting bracket 43, force sensor 44 and other components to rise. The second linear module 41 is activated, driving the first cylinder 42 and the mounting bracket 43, force sensor 44 and other components to approach the fixed fixture 5. The snap-fit ​​block 45 of the force sensor 44 is located directly above the electromagnet 8. Then the first cylinder 49 moves the pressure block 40 to the detection station 4. Cylinder 42 drives the mounting bracket 43 to descend, causing the locking block 45 to engage with the end of the electromagnet 8. Simultaneously, the second cylinder 48 drives the probe 47 to descend, bringing the probe 47 into contact with the electrode 54. The electromagnet 8 is tested using the integrated tester 11, the probe 47, and the force sensor 44. After the test, the first cylinder 42 and the second cylinder 48 reset the relevant components, and the third cylinder 49 resets and releases the electromagnet 8. The first linear module 3 moves the fixing fixture 5 from the testing station 4 to the unloading position. The operator removes the fixing fixture 5 and places it on the transmission mechanism 6. The first linear module 3 moves the mounting plate 7 to its initial position, and the operator installs the new fixing fixture 5 on the mounting plate 7 of the first linear module 3 to continue testing. The operator removes the electromagnet 8 from the fixed fixture 5 after testing and places it in the qualified frame. The empty fixing fixture 5 is then transported to the designated position by the transmission mechanism 6, where a new electromagnet 8 is placed to be tested. The operator can view the test data and device operating status in real time through the display screen on the frame.

[0036] In this embodiment, as Figure 1 As shown, if a defective electromagnet 8 is found during the test, observe the location of the defective product on the test item display screen and press the reset button. After all components of the test station 4 are reset, the first linear module 3 will move the fixing fixture 5 to the initial position. The operator will remove the defective electromagnet 8 and place it in the defective box, and remove the qualified electromagnet 8 and place it in the qualified box. Then, place a new electromagnet 8 in the empty position and press the start button to continue the test.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication 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.

[0040] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A testing device for electromagnets, characterized in that, include: A frame (1) is provided with a tooling plate (2) on its upper side. A first linear module (3) is provided on the tooling plate (2) along its length direction. A testing station (4) is provided on the tooling plate (2) at the middle of the first linear module (3). A comprehensive tester (11) is provided below the table of the frame (1). The fixed fixture (5) is detachably mounted on the upper side of the first linear module (3) and moved to the inspection station (4) through the first linear module (3); The testing station (4) includes a second linear module (41) arranged on the upper side of the tooling plate (2) along the front-back direction. A first cylinder (42) is provided on the slider of the second linear module (41). The movable end of the first cylinder (42) is provided with a mounting bracket (43) that can be raised and lowered. Two force sensors (44) are arranged side by side on one side of the mounting bracket (43). A snap-fit ​​block (45) that docks with an electromagnet (8) is installed on the front of the force sensor (44). A fixed bracket (46) is provided on the side of the second linear module (41). A plurality of probes (47) that can move up and down are arranged side by side on the side of the fixed bracket (46) away from the force sensor (44). The probes (47) are electrically connected to the integrated tester (11).

2. The testing device for electromagnets according to claim 1, characterized in that: The fixed fixture (5) includes a base plate (51). Multiple first fixing blocks (52) are arranged side by side on the upper front part of the base plate (51), and a second fixing block (53) is arranged correspondingly on the upper rear part of the base plate (51). The corresponding first fixing blocks (52) and second fixing blocks (53) are used to fix the electromagnet (8). Two electrodes (54) are arranged side by side on one side of the first fixing block (52).

3. The testing device for electromagnets according to claim 2, characterized in that: The first fixing block (52) is provided with a slot (57) for matching the edge shape of the electromagnet (8).

4. The testing device for electromagnets according to claim 2, characterized in that: The second fixing block (53) has a notch (56) in the middle.

5. The testing device for electromagnets according to claim 2, characterized in that: The first linear module (3) has a mounting plate (7) on its slider. The mounting plate (7) has a protrusion (71) along its length direction. The bottom plate (51) has a mounting groove (55) that matches the protrusion (71) on its lower side.

6. The testing device for an electromagnet according to claim 1, characterized in that: A transmission mechanism (6) is provided on the front side of the frame (1) along the left-right direction. The transmission mechanism (6) is used to transport the fixed tooling (5).

7. The testing device for an electromagnet according to claim 1, characterized in that: A second cylinder (48) for driving the probe (47) to move up and down is installed on the side of the fixed bracket (46) away from the force sensor (44), and multiple third cylinders (49) are arranged side by side on the side of the fixed bracket (46) close to the force sensor (44).

8. The testing apparatus for electromagnets according to claim 7, characterized in that: The movable end of the third cylinder (49) is provided with two pressure blocks (40) arranged side by side.

9. The testing device for electromagnets according to claim 1, characterized in that: A touch screen (9) is provided on the right side of the frame (1) on one side of the first linear module (3).

10. The testing device for electromagnets according to claim 1, characterized in that: The left part of the first linear module (3) is provided with a photoelectric switch (10).

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