A magnetic steel installation detection device

Abstract

The utility model discloses a kind of magnetic steel installation detection devices, including base, two guide pillars are vertically arranged on base, the top of two guide pillars is provided with cylinder mounting plate, cylinder mounting plate is vertically provided with cylinder, the below of cylinder is provided with sliding plate, one end of sliding plate is slidably arranged on two guide pillars, cylinder includes piston rod, the lower end of piston rod passes through cylinder mounting plate and is fixedly connected with sliding plate, the other end of sliding plate is provided with multiple slot photoelectric sensors, the below of the other end of sliding plate is provided with contact plate, multiple sensing sheet are provided on contact plate, the position of multiple sensing sheet and multiple slot photoelectric sensors respectively one-to-one correspondence, multiple sensing sheet and multiple slot photoelectric sensors respectively one-to-one correspondence carry out signal communication, connecting shaft is provided between contact plate and sliding plate.The magnetic steel installation detection device of the utility model can detect whether magnetic steel installation height is in place, adapt to multiple specifications rotors, and detection efficiency and reliability are high.

Description

Technical Field

[0001] This utility model relates to a magnet installation detection device, belonging to the technical field of magnet installation detection in motor rotors. Background Technology

[0002] In the production of motor rotors, magnet insertion is one of the core processes, requiring the magnets to be precisely embedded into the magnet slots of the rotor core. If the magnets are not inserted correctly (protruding from the rotor surface), it will lead to problems such as interference during subsequent rotor-stator assembly, abnormal noise during motor operation, performance degradation, and even equipment failure.

[0003] Existing methods for detecting whether magnets are installed correctly have several shortcomings: some rely on manual visual inspection, which is inefficient, prone to errors, and susceptible to subjective factors; others use mechanical testing mechanisms of fixed specifications, which can only be used with a single rotor model. When changing products, the entire testing components need to be disassembled and replaced, which is cumbersome and lacks versatility; still others use photoelectric testing mechanisms without mechanical contact feedback, which can easily lead to misjudgments due to factors such as oil stains on the rotor surface and color differences in the magnets, resulting in insufficient reliability of the test.

[0004] To address these issues, a magnet positioning detection mechanism is proposed that can provide feedback on magnet height via mechanical contact, adapt to various rotor specifications, and offer high reliability in detecting magnet positioning, thereby overcoming the shortcomings of existing technologies. Utility Model Content

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a magnetic steel installation detection device is provided, which includes a base, two guide columns vertically arranged on the base, a cylinder mounting plate arranged on the top of the two guide columns, a cylinder vertically arranged on the cylinder mounting plate, a sliding plate arranged below the cylinder, one end of the sliding plate being slidably mounted on the two guide columns, the cylinder including a piston rod, the lower end of the piston rod passing through the cylinder mounting plate and fixedly connected to the sliding plate, a plurality of slotted photoelectric sensors arranged on the other end of the sliding plate, a contact plate arranged below the other end of the sliding plate, a plurality of sensing plates arranged on the contact plate, the positions of the plurality of sensing plates and the plurality of slotted photoelectric sensors corresponding one-to-one, the plurality of sensing plates and the plurality of slotted photoelectric sensors being connected to each other in a one-to-one correspondence, and a connecting shaft arranged between the contact plate and the sliding plate.

[0006] Preferably, a linear bearing is provided at one end of the sliding plate, and the linear bearing is sleeved on the guide post.

[0007] Preferably, the base is provided with a buffer mounting plate, and a buffer is vertically mounted on the buffer mounting plate, the buffer being located below the sliding plate.

[0008] Preferably, a limit screw is vertically provided on the top of the buffer mounting plate.

[0009] Preferably, the contact plate is annular.

[0010] Preferably, a mounting plate is vertically provided on one side of the base.

[0011] The beneficial effects of this utility model are: the magnet installation detection device of this utility model can detect whether the magnet installation height is in place, it is compatible with rotors of various specifications, and has high detection efficiency and reliability. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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, wherein: Figure 1 This is a schematic diagram of the structure of the magnet installation and testing device of this utility model. Detailed Implementation

[0013] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] Please see Figure 1 A magnet installation detection device includes a base 1, on which two guide posts 2 are vertically arranged. A cylinder mounting plate 3 is arranged on the top of the two guide posts 2, and a cylinder 4 is vertically arranged on the cylinder mounting plate 3. A sliding plate 5 is arranged below the cylinder 4. One end of the sliding plate 5 is slidably mounted on the two guide posts 2. The cylinder 4 includes a piston rod 6, the lower end of which passes through the cylinder mounting plate 3 and is fixedly connected to the sliding plate 5. A plurality of slotted photoelectric sensors 7 are arranged on the other end of the sliding plate 5. A contact plate 8 is arranged below the other end of the sliding plate 5. A plurality of sensing plates 9 are arranged on the contact plate 8. The positions of the plurality of sensing plates 9 and the plurality of slotted photoelectric sensors 7 are respectively one-to-one, and the plurality of sensing plates 9 and the plurality of slotted photoelectric sensors 7 are respectively connected to each other for signal communication. A connecting shaft 10 is arranged between the contact plate 8 and the sliding plate 5.

[0015] Preferably, a linear bearing 11 is provided at one end of the sliding plate 5. The linear bearing 11 is sleeved on the guide post 2. The linear bearing 11 assists the sliding plate 5 to slide up and down on the two guide posts 2, and plays a guiding and stabilizing role in the sliding of the sliding plate 5.

[0016] Preferably, a buffer mounting plate 12 is provided on the base 1, and a buffer 13 is vertically provided on the buffer mounting plate 12, with the buffer 13 located below the sliding plate 5.

[0017] Preferably, a limit screw 14 is vertically provided on the top of the buffer mounting plate 12.

[0018] Preferably, the contact plate 8 is annular.

[0019] Preferably, a mounting plate 15 is vertically provided on one side of the base 1.

[0020] When this utility model's magnet installation detection device is working, the magnet is inserted into the iron core (not shown in the figure) of the motor rotor. Both the magnet and the iron core are located below the contact plate 8, which is a disc shape consistent with the iron core. The piston rod 6 of the cylinder 4 extends and pushes the sliding plate 5 to slide downward along the guide post 2. When the sliding plate 5 approaches the end of its stroke, the hydraulic buffer 13 contacts the sliding plate 5, slowing down its movement and preventing impact. The sliding plate 5 stops when it moves downward to the limit screw 14. If the slotted photoelectric sensor 7 is not triggered at this time, it means that the magnet installation height is qualified. If there is exposed magnet, the position of the contact plate 8 will be higher than the position of the contacting rotor iron core. At the same time, the position of the sensing plate 9 will also be raised by the rotor iron core, triggering the slotted photoelectric sensor 7 and detecting that a magnet is not installed in place. After the detection action is completed, the piston rod 6 of the cylinder 4 drives the sliding plate 5 to slide upward along the guide post 2 to reset. When a slotted photoelectric sensor 7 senses a corresponding sensing plate 9 again, it confirms that the sliding plate 5 has been reset in place and waits for the next start signal. Multiple slotted photoelectric sensors 7 and multiple sensing elements 9 can each correspond to multiple motor rotor products of different specifications.

[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A magnet installation and testing device, comprising a base, wherein two guide posts are vertically arranged on the base, characterized in that, A cylinder mounting plate is provided on the top of the two guide pillars. A cylinder is vertically mounted on the cylinder mounting plate. A sliding plate is provided below the cylinder. One end of the sliding plate is slidably mounted on the two guide pillars. The cylinder includes a piston rod. The lower end of the piston rod passes through the cylinder mounting plate and is fixedly connected to the sliding plate. Multiple slotted photoelectric sensors are provided on the other end of the sliding plate. A contact plate is provided below the other end of the sliding plate. Multiple sensing plates are provided on the contact plate. The positions of the multiple sensing plates and the multiple slotted photoelectric sensors are respectively one-to-one. The multiple sensing plates and the multiple slotted photoelectric sensors are respectively connected to each other for signal communication. A connecting shaft is provided between the contact plate and the sliding plate.

2. The magnet installation detection device according to claim 1, characterized in that, A linear bearing is provided at one end of the sliding plate, and the linear bearing is sleeved on the guide post.

3. The magnet installation detection device according to claim 1 or 2, characterized in that, The base is provided with a buffer mounting plate, and a buffer is vertically mounted on the buffer mounting plate, which is located below the sliding plate.

4. The magnet installation detection device according to claim 3, characterized in that, Limit screws are vertically installed on the top of the buffer mounting plate.

5. The magnet installation detection device according to claim 4, characterized in that, The contact plate is ring-shaped.

6. The magnet installation detection device according to claim 5, characterized in that, A mounting plate is vertically installed on one side of the base.

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