A kind of motor rotor shaft inspection tool

Abstract

The utility model discloses a kind of motor rotor shaft's inspection tool, it is related to motor production technical field, including inspection bench, the upper end of the inspection bench is fixedly connected with loading platform, the upper end of the loading platform is uniformly provided with assembly frame on both sides, the inside of the assembly frame is provided with assembly groove, the inside of the assembly groove is inserted with assembly block, the side of the assembly block is provided with assembly plate, the middle of the assembly plate side is uniformly fixedly connected with No. The plug-in rod of second, the utility model is set by the setting of contact plate and pressure sensor, when motor rotor shaft is inspected, contact plate is extruded to rotor shaft, the detection value of pressure sensor is recorded at this time, then rotor shaft is rotated, when the detection value of pressure sensor changes, then it is eccentric for concentricity, in this way, friction is concentrated on contact plate, wear-resistant material is selected, can increase service life, even when damaged, it is also more convenient and fast to replace, and replacement cost is lower, it is more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to an inspection fixture for motor rotor shafts. Background Technology

[0002] The motor rotor refers to the rotating part of a motor, which is divided into motor rotor and generator rotor. The motor rotor shaft is the shaft of the motor rotor.

[0003] In the existing technology, the motor rotor shaft is composed of multiple cylinders. Therefore, its production is mostly carried out using a lathe. During machining, it is usually clamped at one end. Therefore, after machining, it is necessary to check the concentricity of the motor rotor shaft. Currently, the detection method is mostly to use a dial indicator, which checks the concentricity by rotating the rotor shaft. However, this method results in greater wear on the measuring end of the dial indicator, leading to a shorter service life of the dial indicator and increasing inspection costs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, the motor rotor shaft is composed of multiple cylinders, so its production is mostly done using a lathe. During processing, it is often clamped at one end. Therefore, after processing, it is necessary to check the concentricity of the motor rotor shaft. Currently, the detection method is mostly to use a dial indicator, which checks the concentricity by rotating the rotor shaft. However, this method results in a large degree of wear on the measuring end of the dial indicator, leading to a short service life of the dial indicator and increasing inspection costs. Therefore, this utility model proposes an inspection fixture for motor rotor shafts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an inspection fixture for a motor rotor shaft, comprising an inspection table, a loading platform fixedly connected to the upper end of the inspection table, assembly racks provided on both sides of the upper end of the loading platform, an assembly groove provided inside the assembly rack, an assembly block inserted into the assembly groove, an assembly plate provided on one side of the assembly block, a second insertion rod fixedly connected above and below the middle of one side of the assembly plate, a first sliding hole provided above and below the middle of the assembly block, the second insertion rod being inserted into the first sliding hole, a spring provided between the assembly plate and the assembly block, an assembly cavity provided on the other side of the assembly plate, a pressure sensor fixedly connected inside the assembly cavity, and a contact plate provided on one side of the pressure sensor.

[0006] Preferably, each of the four corners of the assembly plate is provided with a No. 2 sliding hole, and each of the four corners of one side of the contact plate is fixedly connected with a No. 1 insert rod, which is inserted into the No. 2 sliding hole.

[0007] Preferably, both the assembly plate and the assembly block have a slot on one side, and both ends of the spring are located in the slot.

[0008] Preferably, a threaded sleeve is fixedly connected to one side of the assembly block, and a reinforcing bolt is connected to the internal thread of the threaded sleeve.

[0009] Preferably, a support plate is fixedly connected to the lower end of the assembly frame, and a drive frame is provided at the lower end of the support plate.

[0010] Preferably, the loading platform is provided with a bidirectional lead screw inside, the drive frame is connected to the bidirectional lead screw for transmission, and a light rod is fixedly connected to both sides of the middle part inside the loading platform. The drive frame is slidably connected to the light rod, and an end cover is fixedly connected to the upper end of the loading platform. An end groove is opened at the upper end of the end cover, and the drive frame passes through the end groove and is fixedly connected to the support plate.

[0011] Preferably, side mounting platforms are fixedly connected to both sides of the upper end of the inspection platform.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting up a contact plate and a pressure sensor, the contact plate can be pressed against the rotor shaft when inspecting the motor rotor shaft. At this time, the detection value of the pressure sensor is recorded. Then, the rotor shaft is rotated. When the detection value of the pressure sensor changes, it indicates that there is a deviation in concentricity. In this way, friction is concentrated on the contact plate. Wear-resistant materials are selected to increase the service life. Even if it is damaged, it is relatively convenient and quick to replace, and the replacement cost is low. It is also convenient to use.

[0014] 2. In this utility model, the reinforcing bolts are used to compress the assembly frame, thereby increasing the connection stability between the assembly block and the assembly frame and ensuring stable use. The assembly slots allow the assembly block and the assembly frame to be installed by plugging in, making assembly more convenient. The bidirectional lead screws are used to drive the two drive frames to move closer or further apart to accommodate motor rotor shafts of different sizes. The slots are used to restrict the two ends of the spring, ensuring the stability of the spring. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of an inspection fixture for a motor rotor shaft is provided for this utility model.

[0016] Figure 2 An exploded view of an inspection fixture for a motor rotor shaft is provided for this utility model.

[0017] Figure 3 This utility model proposes an inspection fixture for motor rotor shafts. Figure 2 Enlarged structural diagram of region A in the middle;

[0018] Figure 4 This utility model proposes an inspection fixture for motor rotor shafts. Figure 2 A magnified structural diagram of region B in the middle.

[0019] Legend: 1. Inspection table; 2. Loading table; 3. End cap; 4. Side mounting table; 5. End groove; 6. Assembly frame; 7. Assembly slot; 8. Contact plate; 9. Assembly block; 10. Assembly cavity; 11. Threaded sleeve; 12. Reinforcing bolt; 13. No. 1 sliding hole; 14. Drive frame; 15. Support plate; 16. Smooth rod; 17. No. 1 insertion rod; 18. Assembly plate; 19. Pressure sensor; 20. No. 2 sliding hole; 21. Slot; 22. No. 2 insertion rod; 23. Spring. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides an inspection fixture for a motor rotor shaft, including an inspection table 1. A loading table 2 is fixedly connected to the upper end of the inspection table 1. Assembly racks 6 are provided on both sides of the upper end of the loading table 2. An assembly groove 7 is opened inside the assembly rack 6. An assembly block 9 is inserted into the assembly groove 7. An assembly plate 18 is provided on one side of the assembly block 9. A second insertion rod 22 is fixedly connected to the upper and lower parts of the middle part of one side of the assembly plate 18. A first sliding hole 13 is opened on the upper and lower parts of the middle part of the assembly block 9. The second insertion rod 22 is inserted into the first sliding hole 13. A spring 23 is provided between the assembly plate 18 and the assembly block 9. An assembly cavity 10 is opened on the other side of the assembly plate 18. A pressure sensor 19 is fixedly connected inside the assembly cavity 10. A contact plate 8 is provided on one side of the pressure sensor 19.

[0023] The specific settings and functions of this embodiment are described below. By setting up the contact plate 8 and the pressure sensor 19, the contact plate 8 can be pressed against the rotor shaft when inspecting the motor rotor shaft. At this time, the detection value of the pressure sensor 19 is recorded. Then, when the rotor shaft is rotated, if the detection value of the pressure sensor 19 changes, it indicates that there is a deviation in concentricity. In this way, friction is concentrated on the contact plate 8. Wear-resistant materials are selected to increase the service life. Even if it is damaged, it is relatively convenient and quick to replace, and the replacement cost is low. It is also convenient to use.

[0024] Example 2: Figure 1 - Figure 4 As shown, each of the four corners of the assembly plate 18 has a second sliding hole 20. Each of the four corners of the contact plate 8 is fixedly connected to a first insertion rod 17, which is inserted into the second sliding hole 20. Both the assembly plate 18 and the assembly block 9 have a slot 21 on one side, with both ends of the spring 23 located within the slot 21. A threaded sleeve 11 is fixedly connected to one side of the assembly block 9, and a reinforcing bolt 12 is threaded into the inside of the threaded sleeve 11. A support plate 15 is fixedly connected to the lower end of the assembly frame 6, and a drive frame 14 is installed at the lower end of the support plate 15. The interior of the loading platform 2... A bidirectional lead screw is provided, and the drive frame 14 is connected to the bidirectional lead screw for transmission. Both sides of the middle part of the loading platform 2 are fixedly connected to the guide rod 16, and the drive frame 14 is slidably connected to the guide rod 16. An end cover 3 is fixedly connected to the upper end of the loading platform 2, and an end groove 5 is opened at the upper end of the end cover 3. The drive frame 14 passes through the end groove 5 and is fixedly connected to the support plate 15. Side mounting platforms 4 are fixedly connected to both sides of the upper end of the inspection platform 1. Electric three-jaw chucks are installed on the side mounting platforms 4 to clamp the two ends of the motor rotor shaft and rotate the motor rotor shaft. The bidirectional lead screw is used in conjunction with the drive equipment.

[0025] The overall effect of this embodiment is that the reinforcement bolts 12 are used to compress the assembly frame 6, thereby increasing the connection stability between the assembly block 9 and the assembly frame 6 and ensuring stable use. The assembly slots 7 are used to install the assembly block 9 and the assembly frame 6 by plugging them in, which makes assembly more convenient. The two-way lead screws are used to drive the two drive frames 14 to move closer or further apart to adapt to motor rotor shafts of different sizes. The slots 21 are used to restrict the two ends of the spring 23 to ensure the stability of the spring 23.

[0026] The usage and working principle of this device are as follows: When inspecting the motor rotor shaft, connect one or both ends of the motor rotor shaft to an electric three-jaw chuck. After the clamping is stable, the drive device controls the bidirectional lead screw to rotate, so that the two drive frames 14 move closer to each other until the contact plate 8 contacts the motor rotor shaft and the pressure sensor 19 detects the pressure value. At this time, the spring 23 is in a compressed state, the electric three-jaw chuck starts, and drives the motor rotor shaft to rotate. When the value detected by the pressure sensor 19 changes, it means that the concentricity has deviated.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An inspection fixture for a motor rotor shaft, comprising an inspection table (1), characterized in that: The upper end of the inspection table (1) is fixedly connected to the loading table (2). The upper ends of the loading table (2) are provided with assembly racks (6) on both sides. The assembly racks (6) have assembly slots (7) inside. Assembly blocks (9) are inserted into the assembly slots (7). An assembly plate (18) is provided on one side of the assembly block (9). A second insertion rod (22) is fixedly connected to the upper and lower parts of the middle of one side of the assembly plate (18). A first sliding hole (13) is opened on the upper and lower parts of the middle of the assembly block (9). The second insertion rod (22) is inserted into the first sliding hole (13). A spring (23) is provided between the assembly plate (18) and the assembly block (9). An assembly cavity (10) is opened on the other side of the assembly plate (18). A pressure sensor (19) is fixedly connected inside the assembly cavity (10). A contact plate (8) is provided on one side of the pressure sensor (19).

2. The inspection fixture for a motor rotor shaft according to claim 1, characterized in that: The four corners of the assembly plate (18) are provided with second sliding holes (20), and the four corners of one side of the contact plate (8) are fixedly connected with first insert rods (17), which are inserted into the second sliding holes (20).

3. The inspection fixture for a motor rotor shaft according to claim 1, characterized in that: Both the assembly plate (18) and the assembly block (9) have a slot (21) on one side, and both ends of the spring (23) are located in the slot (21).

4. The inspection fixture for a motor rotor shaft according to claim 1, characterized in that: A threaded sleeve (11) is fixedly connected to one side of the assembly block (9), and a reinforcing bolt (12) is threaded inside the threaded sleeve (11).

5. The inspection fixture for a motor rotor shaft according to claim 1, characterized in that: The lower end of the assembly frame (6) is fixedly connected to a support plate (15), and the lower end of the support plate (15) is provided with a drive frame (14).

6. The inspection fixture for a motor rotor shaft according to claim 5, characterized in that: The loading platform (2) is equipped with a bidirectional lead screw inside. The drive frame (14) is connected to the bidirectional lead screw for transmission. Both sides of the middle part of the loading platform (2) are fixedly connected to the light rod (16). The drive frame (14) is slidably connected to the light rod (16). The upper end of the loading platform (2) is fixedly connected to the end cap (3). The upper end of the end cap (3) is provided with an end groove (5). The drive frame (14) passes through the end groove (5) and is fixedly connected to the support plate (15).

7. The inspection fixture for a motor rotor shaft according to claim 1, characterized in that: Both sides of the upper end of the inspection table (1) are fixedly connected to side mounting platforms (4).

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