Vacuum pump motor base detection tool

Abstract

The utility model relates to a kind of vacuum pump motor base detection tool, including workbench, the one end of workbench is fixedly connected with first mounting seat, the side wall of first mounting seat is rotatably connected with motor base insertion positioning of positioning shaft, the side wall of first mounting seat is fixedly connected with first motor, the output end of first motor is fixedly connected with positioning shaft one end to drive positioning shaft rotation, positioning shaft is coaxially installed with support disc.The utility model improves the convenience of motor base installation positioning by positioning shaft, support disc and limit disc cooperation, starting first motor can drive motor base to rotate with positioning shaft to change measuring point, then by starting linear guide adjustable laser ranging sensor horizontal position, to expand the measurement range, starting laser ranging sensor carries out ranging by emitting and receiving laser, measurement result is shown on display screen, to improve motor base size detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor testing equipment, specifically a testing fixture for a vacuum pump motor base. Background Technology

[0002] The vacuum pump motor base is a key component that supports the vacuum pump motor and ensures its stable operation. It plays a role in fixing the motor, bearing the load, and ensuring the coaxiality of the motor and the pump body. It directly affects the operating accuracy and service life of the vacuum pump. The vacuum pump motor base testing fixture is a special equipment used to test the key performance of the vacuum pump motor base and perform positioning processing, which can ensure that the base meets the assembly accuracy and usage requirements.

[0003] Vacuum pump motor base inspection fixtures typically include a fixed base, positioning components, and a clamping mechanism. The fixed base has a boss and a positioning post, which engages with the slotted base for pre-positioning. The clamping mechanism is usually a rotary cylinder, with a rotating arm at the output end carrying a pressure plate that fits against the base surface. During operation, the base is initially positioned by the boss and positioning post, and then the rotary cylinder drives the pressure plate to clamp the base. For dimensional accuracy inspection of the vacuum pump motor base, the length, width, and surface flatness of the main frame need to be measured to ensure compliance with design requirements. During measurement, operators usually need to first fix the motor base and then use calipers, micrometers, and other tools for measurement and verification. Due to the irregular structure of the motor base and the presence of an arc-shaped groove in the middle, coupled with a large number of measurement points, manual measurement is time-consuming and labor-intensive, thus affecting the efficiency of motor base inspection. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing vacuum pump motor base testing fixture is time-consuming and labor-intensive to use because the motor base has an irregular structure and an arc-shaped groove in the middle, and there are many measurement points, which affects the efficiency of motor base testing.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A vacuum pump motor base testing fixture includes a worktable, a first mounting base fixedly connected to one end of the worktable, a positioning shaft rotatably connected to the side wall of the first mounting base for power supply base insertion and positioning, a first motor fixedly connected to the side wall of the first mounting base, the output end of the first motor fixedly connected to one end of the positioning shaft for driving the positioning shaft to rotate, a support plate coaxially mounted on the positioning shaft, a limit plate mounted on the other end of the positioning shaft for supporting and limiting the motor base, a second mounting base fixedly connected to the other end of the worktable, a first slider movably connected to the side wall of the second mounting base, a linear guide rail fixedly connected to one end of the first slider, a second slider slidably connected to the middle of the linear guide rail, a laser rangefinder fixedly connected to the side wall of the second slider, and a display screen fixedly connected to the side wall of the second mounting base for displaying measurement data.

[0006] The beneficial effects of this utility model are: the coordination of the positioning shaft, support plate and limiting plate improves the convenience of motor base installation and positioning; starting the first motor can drive the motor base to rotate with the positioning shaft to change the measurement point; and starting the linear guide can adjust the horizontal position of the laser range sensor, thereby expanding the measurement range; starting the laser range sensor can measure distance by emitting and receiving lasers, and the measurement result is displayed on the display screen, thereby improving the efficiency of motor base size detection.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, a buffer assembly is provided on the side wall of the support plate. The buffer assembly includes a damper fixed to the side wall of the support plate. A spring is wound around the outer surface of the damper, and a support ring is fixedly connected to one end of the damper.

[0009] Furthermore, the two ends of the spring are fixedly connected to the support plate and the support ring respectively. The side wall of the support ring is fixedly connected to the first anti-slip layer. Both the support ring and the first anti-slip layer are circularly sleeved on the outer surface of the positioning shaft.

[0010] Furthermore, a threaded rod is fixedly connected in the middle of the limiting plate, and a threaded groove is opened in the middle of the positioning shaft for the threaded rod to be threadedly connected.

[0011] Furthermore, the side wall of the limiting plate is provided with anti-slip grooves, and a second anti-slip layer is fixedly connected to the side wall of the limiting plate near the threaded rod.

[0012] Furthermore, the drive assembly includes a second motor mounted on a second mounting base, a lead screw fixedly connected to the output end of the second motor, and a lead screw slide threadedly connected to the lead screw.

[0013] Furthermore, the first slider is fixed to the lead screw slide, and the second motor controls the movement of the lead screw slide along the axis of the lead screw by driving the lead screw to rotate.

[0014] Furthermore, the lead screw slide is engaged in the middle of the first slider, and a groove is provided in the middle of the second mounting base for the first slider to slide.

[0015] The beneficial effects of adopting the above-mentioned further solution are as follows: by setting up a buffer component and a second anti-slip layer, the first and second anti-slip layers directly contact the motor base to avoid friction damage. The damper consumes energy through friction to slow down the movement, and the spring stores and releases energy through elastic deformation. The damper and spring work together to attenuate vibration and improve the stability of the motor base rotation support. Secondly, by setting up a first motor, a second motor, a lead screw, a first slider, and a slide groove in combination, the stability and convenience of the linear guide height adjustment are improved, and the measurement range is further expanded. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the positioning shaft structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the buffer component of this utility model;

[0020] Figure 5 This is a cross-sectional view of the second mounting base of this utility model;

[0021] Figure 6 This is a schematic diagram of the first slider structure of this utility model;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Workbench; 2. First mounting base; 3. PLC controller; 4. Positioning axis; 5. First motor; 6. Limit plate; 7. Second mounting base; 8. Display screen; 9. First slider; 10. Linear guide rail; 11. Second slider; 12. Laser rangefinder sensor; 13. Second motor; 14. Lead screw; 15. Support plate; 16. Buffer assembly; 1601. Damper; 1602. Spring; 1603. Support ring; 1604. First anti-slip layer; 17. Threaded rod; 18. Second anti-slip layer; 19. Threaded groove; 20. Lead screw slide; 21. Slide groove. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0026] like Figure 1-6As shown, this utility model provides an embodiment: a vacuum pump motor base testing fixture, including a worktable 1. One end of the worktable 1 is fixedly connected to a first mounting base 2 by bolts for support and limiting. A positioning shaft 4 is rotatably connected to the side wall of the first mounting base 2 for powering the motor base for insertion and positioning. A first motor 5 is fixedly connected to the side wall of the first mounting base 2 by bolts. The output end of the first motor 5 is fixedly connected to one end of the positioning shaft 4 to drive the positioning shaft 4 to rotate. A support plate 15 is coaxially mounted on the positioning shaft 4. A limit plate 6 is mounted on the other end of the positioning shaft 4 for supporting the motor base. The worktable 1 is limited by a support. A second mounting base 7 is fixedly connected to the other end of the worktable 1. A first slider 9 is movably connected to the side wall of the second mounting base 7. A linear guide rail 10 is fixedly connected to one end of the first slider 9. A second slider 11 is slidably connected to the middle of the linear guide rail 10. The second slider 11 is a mechanical component that guides the moving parts to perform linear reciprocating motion. High-precision guidance is achieved through rolling or sliding friction. The second slider 11 is existing technology and will not be described in detail here. A laser rangefinder 12 is fixedly connected to the side wall of the second slider 11 for distance measurement. Keyence's LK-G series laser rangefinder 12 can be used. The laser rangefinder 12 employs laser triangulation; the laser beam emitted by the emitter is reflected by the target and imaged on the CCD or CMOS sensor at the receiving end. Based on the geometric relationship of the triangle formed by the emission point, receiving point, and target point, combined with the known baseline length and angle, the target distance is calculated. A display screen 8 is fixedly connected to the side wall of the second mounting base 7 to display measurement data. The positioning shaft 4, support plate 15, and limit plate 6 work together to improve the convenience of motor base installation and positioning. Starting the first motor 5 drives the motor base to rotate with the positioning shaft 4, changing the measurement angle and thus the measurement point. The laser rangefinder 12 is then activated to measure distance by emitting and receiving laser light, and the measurement result is displayed on the display screen 8. The linear guide rail 10 is then activated to drive the second slider 11 to slide horizontally, changing the horizontal position of the laser rangefinder 12 before measuring again. This allows for the measurement of the distance between points at the same horizontal position on the motor base. Analysis of the distance reveals the depth and curvature of several grooves, thus improving the accuracy and efficiency of motor base size detection.

[0027] like Figure 1-4As shown, a buffer assembly 16 is provided on the side wall of the support plate 15. The buffer assembly 16 includes a damper 1601 fixed to the side wall of the support plate 15. A spring 1602 is wound around the outer surface of the damper 1601. A support ring 1603 is fixedly connected to one end of the damper 1601. The two ends of the spring 1602 are fixedly connected to the support plate 15 and the support ring 1603 respectively. A first anti-slip layer 1604 is fixedly connected to the side wall of the support ring 1603 for direct contact with the vacuum pump motor base. Both the support ring 1603 and the first anti-slip layer 1604 are annularly sleeved on the outer surface of the positioning shaft 4. A threaded rod 17 is fixedly connected to the middle of the limiting plate 6. The center of the pivot 4 has a threaded groove 19 for threaded connection of the threaded rod 17. The side wall of the limiting plate 6 has an anti-slip groove. The side wall of the limiting plate 6 near the threaded rod 17 is fixedly connected to a second anti-slip layer 18 for direct contact with the vacuum pump motor base. The first anti-slip layer 1604 and the second anti-slip layer 18 are both made of rubber and are elastic. The first anti-slip layer 1604 and the second anti-slip layer 18 directly contact the motor base to avoid friction damage. The damper 1601 consumes energy through friction to slow down the movement. The spring 1602 stores and releases energy by utilizing elastic deformation. The damper 1601 and the spring 1602 work together to dampen vibration and improve the stability of the rotation support of the motor base.

[0028] like Figure 1-2 As shown, a PLC controller 3 is fixedly connected to the side wall of the first mounting base 2. The PLC controller 3 is a digital computing electronic system that controls machinery or production processes through programming. The PLC controller 3 is used to control the switching time and rotation speed of the first motor 5, thereby improving the accuracy of the rotation control of the first mounting base 2.

[0029] like Figure 1 , 2 As shown in Figures 5 and 6, the drive assembly includes a second motor 13 mounted on the second mounting base 7, a lead screw 14 fixedly connected to the output end of the second motor 13, and a lead screw slide 20 threadedly connected to the lead screw 14. The first slider 9 is fixed to the lead screw slide 20. The second motor 13 drives the lead screw 14 to rotate, which controls the movement of the lead screw slide 20 along the axis of the lead screw 14. This improves the stability and convenience of the height adjustment of the linear guide 10 and further expands the measurement range.

[0030] Another embodiment of the drive assembly: the second motor 13 can be replaced by an electric push rod. The output end of the electric push rod passes through the second mounting base 7 and is fixed to the top of the first slider 9. By activating the electric push rod, the first slider 9 can be driven to slide vertically in the middle of the lead screw slide table 20, thereby facilitating the adjustment of the height of the first slider 9 and the linear guide rail 10.

[0031] Working principle: When using this vacuum pump motor base testing fixture, the operator first connects an external power supply, places the vacuum pump motor base to be tested onto the outer surface of the positioning shaft 4, and then threads the threaded rod 17 into the middle of the threaded groove 19. The motor base is clamped and limited by the support plate 15 and the limiting plate 6. The second anti-slip layer 18 and the first anti-slip layer 1604 directly contact the surface of the motor base to prevent scratches. Then, by starting the first motor 5, the motor base can be driven to rotate with the positioning shaft 4, thereby changing the measurement point. By activating the laser rangefinder 12, the laser rangefinder... The light beam emitted by 12 is reflected by the target and imaged on the CCD or CMOS sensor at the receiving end. Based on the geometric relationship of the triangle formed by the emission point, the receiving point and the target point, the target distance is calculated in combination with the known baseline length and angle, and a data is displayed on the display screen 8. Then, the linear guide rail 10 is activated to drive the second slider 11 to slide horizontally, changing the horizontal position of the laser range sensor 12 and then measuring a data. In this way, the distance between the same horizontal position on the motor base can be measured. By analyzing the distance, the depth and curvature of several grooves can be obtained.

[0032] Secondly, the damper 1601 consumes energy through friction to slow down the motion, and the spring 1602 stores and releases energy through elastic deformation. The damper 1601 and the spring 1602 work together to dampen the vibration.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing fixture for a vacuum pump motor base, characterized in that: The device includes a worktable (1), a first mounting base (2) fixedly connected to one end of the worktable (1), a positioning shaft (4) rotatably connected to the side wall of the first mounting base (2) for power supply base insertion and positioning, a first motor (5) fixedly connected to the side wall of the first mounting base (2), the output end of the first motor (5) fixedly connected to one end of the positioning shaft (4) to drive the positioning shaft (4) to rotate, a support plate (15) coaxially mounted on the positioning shaft (4), a limit plate (6) mounted on the other end of the positioning shaft (4) to support and limit the motor base, a second mounting base (7) fixedly connected to the other end of the worktable (1), a first slider (9) movably connected to the side wall of the second mounting base (7), a linear guide rail (10) fixedly connected to one end of the first slider (9), a second slider (11) slidably connected to the middle of the linear guide rail (10), a laser range sensor (12) fixedly connected to the side wall of the second slider (11), and a display screen (8) fixedly connected to the side wall of the second mounting base (7) to display measurement data.

2. The vacuum pump motor base testing fixture according to claim 1, characterized in that, A buffer assembly (16) is provided on the side wall of the support plate (15). The buffer assembly (16) includes a damper (1601) fixed on the side wall of the support plate (15). A spring (1602) is wound on the outer surface of the damper (1601). A support ring (1603) is fixedly connected to one end of the damper (1601).

3. The vacuum pump motor base testing fixture according to claim 2, characterized in that, The two ends of the spring (1602) are fixedly connected to the support plate (15) and the support ring (1603) respectively. The side wall of the support ring (1603) is fixedly connected to the first anti-slip layer (1604). The support ring (1603) and the first anti-slip layer (1604) are both ring-shaped and sleeved on the outer surface of the positioning shaft (4).

4. The vacuum pump motor base testing fixture according to claim 1, characterized in that, The center of the limiting plate (6) is fixedly connected to a threaded rod (17), and the center of the positioning shaft (4) is provided with a threaded groove (19) for the threaded rod (17) to be threaded.

5. The vacuum pump motor base testing fixture according to claim 1, characterized in that, The side wall of the limiting plate (6) is provided with anti-slip grooves, and the side wall of the limiting plate (6) near the threaded rod (17) is fixedly connected with a second anti-slip layer (18).

6. The vacuum pump motor base testing fixture according to claim 1, characterized in that, The drive assembly includes a second motor (13) mounted on a second mounting base (7), a lead screw (14) fixedly connected to the output end of the second motor (13), and a lead screw slide (20) threadedly connected to the lead screw (14).

7. The vacuum pump motor base testing fixture according to claim 6, characterized in that, The first slider (9) is fixed to the lead screw slide (20), and the second motor (13) controls the lead screw slide (20) to move along the axis of the lead screw (14) by driving the lead screw (14) to rotate.

8. The vacuum pump motor base testing fixture according to claim 7, characterized in that, The lead screw slide (20) is engaged in the middle of the first slider (9), and the second mounting base (7) has a groove (21) in the middle for the first slider (9) to slide.

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