A coaxiality detection and correction device for motor shaft machining

Abstract

This utility model discloses a coaxiality detection and correction device for motor shaft machining, relating to the field of motor shaft machining technology. The utility model includes a base, with a detection mechanism on the top of the base for measuring the coaxiality of the motor shaft. A first adjustment mechanism and a second adjustment mechanism are provided inside the detection mechanism and outside the base, allowing the detection mechanism to adapt to motor shafts of different sizes. This application enables accurate detection of the coaxiality of the motor shaft through the detection mechanism, providing a reliable basis for subsequent correction. In use, both ends of the motor shaft are placed on the first and second placement rods. The driven threaded rod rotates, causing the lifting plate, fixed rod, and support plate to descend, bringing the measuring gauge into contact with the outer surface of the motor shaft. The elastic force generated by the compressed spring ensures a tight fit between the detection end and the motor shaft, thus preventing the measuring end of the gauge from detaching from the surface of the motor shaft and causing abnormal detection data.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft processing technology, specifically to a coaxiality detection and correction device for motor shaft processing. Background Technology

[0002] The motor shaft is a key component in an electric motor that plays a transmission role; it is usually a cylindrical part that extends from the motor and is the main channel for transmitting power. Publication number "CN221404175U" discloses a device for detecting and correcting the coaxiality of a motor stator, including a base and a connecting shaft. First support plates are fixedly connected to both sides of the front end of the upper surface of the base, and a connecting plate is fixedly connected to one side of the rear end of the upper surface of the base. An mounting plate is fixedly connected to the upper end of the inner wall of the first support plate, and a second support plate is fixedly connected to the middle of the front end of the upper surface of the base. In this invention, by sleeved around the clamping plate, rotating the hollow lead screw can move the limiting sleeve, which in turn moves the first and second support frames, pushing the clamping plate outward. This allows the motor stator to be stably clamped on the device, improving detection accuracy. The first transmission lead screw can move the first threaded guide sleeve, which in turn moves the support frame. A gauge on the support frame can be used to detect the coaxiality of the motor stator. Based on the search of patent numbers and the shortcomings of existing technologies, the following was found: In existing technologies, when measuring instruments are used to test motor shafts, the measuring end of the instrument is usually directly and rigidly attached to the outer surface of the motor shaft. This can easily cause scratches on the outer surface of the motor shaft due to improper control of the contact force. At the same time, the rigid contact lacks cushioning, and when the motor shaft rotates slightly, it can easily cause fluctuations in the measuring instrument's test data, affecting the stability of the test results and subsequent calibration. Utility Model Content

[0003] To address the issue of the gauge's testing end being rigidly bonded to the outer surface of the motor shaft, the purpose of this invention is to provide a coaxiality testing and calibration device for motor shaft machining.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a coaxiality detection and correction device for motor shaft processing, including a base, a detection mechanism on the top of the base for measuring the coaxiality of the motor shaft, and a first adjustment mechanism and a second adjustment mechanism inside the detection mechanism and outside the base, so that the detection mechanism can be adapted to motor shafts of different sizes. The testing mechanism includes a fixed plate and a movable plate fixedly connected to the base. Symmetrically distributed rotating shafts are rotatably mounted inside both the fixed plate and the movable plate. Gears are fixedly mounted on the outer side of one set of rotating shafts, and the two gears mesh together. A first placement rod and a second placement rod are fixedly mounted on the outer side of each set of rotating shafts. Two supports are provided on the outer side of the base, one of which is fixedly connected to the base. A threaded rod is rotatably mounted on the top of the support, and a lifting plate is threaded onto the top of the threaded rod. Symmetrically distributed fixed rods are fixedly passed through the top of the lifting plate. A support plate is movably mounted on the bottom of both fixed rods. The support plate and the lifting plate are fixedly connected by two springs. A measuring gauge is fixedly mounted in the middle of the support plate. Symmetrically distributed crossbars are fixedly mounted on the bottom of the fixed plate, and the crossbars pass through the movable plate.

[0005] Preferably, the first adjustment mechanism includes two guide rails fixedly installed at the top of the base, the guide rails pass through the movable plate, a first magnetic strip is fixedly installed at the top of the guide rail, and two first magnetic blocks that cooperate with the first magnetic strip are fixedly installed at the bottom of the movable plate.

[0006] Preferably, a symmetrically distributed fixing block is fixedly installed on one side of the base, and a positioning rod is fixedly installed in the middle of the two fixing blocks. The positioning rod passes through one of the brackets. A second magnetic strip is fixedly installed on one side of the bottom of the base, and a second magnetic block that works in conjunction with the second magnetic strip is fixedly installed at the bottom of one of the brackets.

[0007] Preferably, the bracket has symmetrically distributed limiting rods fixedly installed inside, and the limiting rods pass through the lifting plate.

[0008] Preferably, a motor is coaxially fixed to the top of the threaded rod to provide power to the threaded rod.

[0009] Preferably, a vertical plate is fixedly installed on one side of the top of the base, and the vertical plate and the crossbar are fixedly connected.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This application enables accurate testing of the coaxiality of the motor shaft through a testing institution, providing a reliable basis for subsequent calibration. During use, both ends of the motor shaft are placed on the first and second placement rods. The drive threaded rod rotates, causing the lifting plate, fixed rod, and support plate to descend, bringing the measuring instrument into contact with the outer surface of the motor shaft. The spring force generated by the compression of the spring ensures a tight fit between the testing end and the motor shaft, preventing the testing end of the measuring instrument from detaching from the surface of the motor shaft and causing abnormal test data. When the rotating shaft is rotated, the gear meshing transmission drives the two sets of rotating shafts and placement rods to rotate synchronously, thereby driving the motor shaft to rotate and completing the test. 2. This application utilizes a first adjustment mechanism and a second adjustment mechanism to adapt the device to motor shafts of different sizes, improving its versatility and operational stability. The movable plate can adjust its distance from the fixed plate to accommodate motor shafts of different lengths. After movement, the first magnetic block and the first magnetic strip attract and fix the movable plate. The movable bracket can drive the measuring instrument to adjust its position, and the second magnetic block and the second magnetic strip attract and fix the bracket. The positioning rod limits the bracket to prevent deviation, the guide rail assists the movable plate in smooth movement, and the horizontal bar and vertical plate cooperate to prevent the movable plate from detaching. The adjustment method is simple, the fixation is reliable, and the applicability of the device is expanded. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of some of the testing mechanisms in this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the fixing plate in this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the second adjustment mechanism in this utility model.

[0016] In the diagram: 101, base; 1, detection mechanism; 2, first adjustment mechanism; 3, second adjustment mechanism; 11, fixed plate; 111, movable plate; 12, rotating shaft; 13, gear; 14, first placement rod; 15, second placement rod; 16, bracket; 17, threaded rod; 18, lifting plate; 19, fixed rod; 191, support plate; 192, spring; 193, measuring gauge; 194, crossbar; 21, guide rail; 22, first magnetic strip; 23, first magnetic block; 31, fixed block; 32, positioning rod; 33, second magnetic strip; 34, second magnetic block; 41, limit rod; 51, motor; 61, vertical plate. Detailed Implementation

[0017] 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.

[0018] like Figure 1-4 As shown, this utility model discloses a coaxiality detection and correction device for motor shaft machining, and provides the following two embodiments: Example 1: A coaxiality detection and correction device for motor shaft processing includes a base 101. A detection mechanism 1 is provided on the top of the base 101 for measuring the coaxiality of the motor shaft. At the same time, a first adjustment mechanism 2 and a second adjustment mechanism 3 are provided inside the detection mechanism 1 and outside the base 101, so that the detection mechanism 1 can be adapted to motor shafts of different sizes. The testing mechanism 1 includes a fixed plate 11 and a movable plate 111 fixedly connected to the base 101. Symmetrically distributed rotating shafts 12 are rotatably installed inside both the fixed plate 11 and the movable plate 111. Gears 13 are fixedly installed on the outer side of one set of rotating shafts 12, and the two gears 13 are meshed together. A first placement rod 14 and a second placement rod 15 are fixedly installed on the outer side of the two sets of rotating shafts 12, respectively. Two supports 16 are provided on the outer side of the base 101. One support 16 is fixedly connected to the base 101. A threaded rod 17 is rotatably installed on the top of the support 16. A lifting plate 18 is threadedly fitted onto the top of the threaded rod 17. Symmetrically distributed fixed rods 19 are fixedly passed through the top of the lifting plate 18. A support plate 191 is movably fitted onto the bottom of the two fixed rods 19. The support plate 191 and the lifting plate 18 are fixedly connected by two springs 192. A measuring gauge 193 is fixedly installed in the middle of the support plate 191. Symmetrically distributed crossbars 194 are fixedly installed at the bottom of the fixed plate 11, and the crossbars 194 pass through the movable plate 111.

[0019] Example 2 differs from Example 1 in that: the first adjustment mechanism 2 includes a guide rail 21 fixedly installed on the top of the base 101, and there are two guide rails 21. The guide rails 21 pass through the movable plate 111. A first magnetic strip 22 is fixedly installed on the top of the guide rail 21, and two first magnetic blocks 23 that cooperate with the first magnetic strip 22 are fixedly installed on the bottom of the movable plate 111.

[0020] A symmetrically distributed fixing block 31 is fixedly installed on one side of the base 101. A positioning rod 32 is fixedly installed in the middle of the two fixing blocks 31. The positioning rod 32 passes through one of the brackets 16. A second magnetic strip 33 is fixedly installed on one side of the bottom of the base 101. A second magnetic block 34 that works with the second magnetic strip 33 is fixedly installed at the bottom of one of the brackets 16. By setting the fixing block 31 and the positioning rod 32, the bracket 16 can be limited to prevent it from shifting when moving. The second magnetic strip 33 and the second magnetic block 34 can fix the bracket 16 and improve its stability.

[0021] The bracket 16 is fixedly installed with symmetrically distributed limit rods 41, which pass through the lifting plate 18. By setting the limit rods 41, the stability of the lifting plate 18 when it moves is improved.

[0022] A motor 51 is coaxially fixed to the top of the threaded rod 17 to provide power to the threaded rod 17.

[0023] A vertical plate 61 is fixedly installed on one side of the top of the base 101. The vertical plate 61 is fixedly connected to the crossbar 194. By setting the vertical plate 61, the other end of the crossbar 194 can be supported, improving the overall stability and preventing the movable plate 111 from detaching from the crossbar 194.

[0024] Working principle: In actual use, the operator places both ends of the motor shaft on the first placement rod 14 and the second placement rod 15. The threaded rod 17 is driven to rotate, causing the lifting plate 18, the fixed rod 19, and the support plate 191 to descend. The support plate 191 causes the measuring gauge 193 to descend until the measuring gauge 193 contacts the outer surface of the motor shaft. At this time, the spring 192 is compressed and releases downward elastic force, so that the detection end of the measuring gauge 193 is in close contact with the outer surface of the motor shaft. The first placement rod 14 is driven to rotate by rotating the shaft 12. At the same time, the shaft 12 drives another gear 13 to rotate through the gear 13. The other gear 13 drives another shaft 12 to rotate, so that the two first placement rods 14 rotate in opposite directions, driving the motor shaft to rotate, thereby realizing the detection of the motor shaft and facilitating subsequent calibration of the motor shaft. The movable plate 111 drives the second placement rod 15 to move, and the distance between the movable plate 111 and the fixed plate 11 can be adjusted to accommodate motor shafts of different sizes. When the movable plate 111 moves to the appropriate position, the first magnetic block 23 and the first magnetic strip 22 at its bottom attract each other to fix the movable plate 111 and prevent it from shifting during operation. At the same time, one of the brackets 16 can drive the measuring gauge 193 to move, and the second magnetic block 34 and the second magnetic strip 33 attract each other to fix the bracket 16.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A coaxiality detection and correction device for motor shaft machining, comprising a base, characterized in that: The top of the base is provided with a detection mechanism for measuring the coaxiality of the motor shaft. At the same time, the inside of the detection mechanism and the outside of the base are provided with a first adjustment mechanism and a second adjustment mechanism, so that the detection mechanism can be adapted to motor shafts of different sizes. The detection mechanism includes a fixed plate and a movable plate fixedly connected to the base. Symmetrically distributed rotating shafts are rotatably mounted inside both the fixed plate and the movable plate. Gears are fixedly mounted on the outer side of one set of rotating shafts, and two gears mesh with each other. A first placement rod and a second placement rod are fixedly mounted on the outer side of each set of rotating shafts, respectively. Two supports are provided on the outer side of the base, one of which is fixedly connected to the base. A threaded rod is rotatably mounted on the top of the support, and a lifting plate is threaded onto the top of the threaded rod. Symmetrically distributed fixed rods are fixedly passed through the top of the lifting plate. A support plate is movably mounted on the bottom of both fixed rods. The support plate and the lifting plate are fixedly connected by two springs. A measuring gauge is fixedly mounted in the middle of the support plate. Symmetrically distributed crossbars are fixedly mounted on the bottom of the fixed plate, and the crossbars pass through the movable plate.

2. The coaxiality detection and correction device for motor shaft machining as described in claim 1, characterized in that, The first adjustment mechanism includes two guide rails fixedly installed at the top of the base. The guide rails pass through the movable plate. A first magnetic strip is fixedly installed at the top of the guide rail. Two first magnetic blocks that cooperate with the first magnetic strip are fixedly installed at the bottom of the movable plate.

3. The coaxiality detection and correction device for motor shaft machining as described in claim 2, characterized in that, A symmetrically distributed fixing block is fixedly installed on one side of the base, and a positioning rod is fixedly installed in the middle of two fixing blocks. The positioning rod passes through one of the brackets. A second magnetic strip is fixedly installed on one side of the bottom of the base, and a second magnetic block that works in conjunction with the second magnetic strip is fixedly installed at the bottom of one of the brackets.

4. The coaxiality detection and correction device for motor shaft machining as described in claim 3, characterized in that, The bracket is internally fixed with symmetrically distributed limiting rods, which penetrate the lifting plate.

5. The coaxiality detection and correction device for motor shaft machining as described in claim 1, characterized in that, A motor is coaxially fixed to the top of the threaded rod to provide power to it.

6. The coaxiality detection and correction device for motor shaft machining as described in claim 4, characterized in that, A vertical plate is fixedly installed on one side of the top of the base, and the vertical plate and the crossbar are fixedly connected.

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