Precise ring body radial circle run-out measuring device

Abstract

The invention provides a precise ring body radial circle run-out measuring device, and belongs to the technical field of measurement of a ring body assembly in a precise conductive slip ring, the precise ring body radial circle run-out measuring device comprises a display, a chute mechanism, a detection mechanism and a base, a first connecting rod is spherically hinged to the top of the base, and a second connecting rod is fixedly installed on the top of the first connecting rod through a rotating handle; a third connecting rod is spherically hinged to the top of the second connecting rod, and a sliding groove mechanism, a detection mechanism and a displayer mechanism are fixedly installed at the front end of the third connecting rod, so that fixed-point measurement in any area of the ring body is achieved, positioning is stable and reliable, the accuracy of measured data is improved, and the detection efficiency is greatly improved; the device has the advantages of being simple in structure, convenient to operate and simple in assembly process, and multi-loop runout measurement can be achieved only through one-time alignment when the device is used; the device is good in interchangeability and high in universality; only the measuring probe needs to be replaced for different products, and other parts are directly used as universal parts after being assembled.

Description

Technical Field

[0001] The invention relates to the technical field of measuring a ring body component in a precision conductive slip ring, in particular to a precision ring body radial runout measuring device. Background Art

[0002] The ring assembly of precision conductive slip ring is generally composed of shaft assembly, ring piece, insulating gasket, pressure plate and bearing seat. The shaft assembly, ring piece, insulating gasket and bearing seat have high coaxiality requirements. In order to ensure the stable electrical transmission performance of the slip ring, it is required to measure the radial runout error of the outer circle of the ring assembly with the central axis of the shaft assembly as the reference.

[0003] In the actual production of ring body components, a micrometer is generally used for measurement. The micrometer is connected to the slideway through the end special-shaped structure, the end of the slideway is connected to the telescopic rod, the telescopic rod is fixed at the specified position of the machine tool, and the ring body components are measured one by one.

[0004] This detection method can meet the requirements of testing the slip rings one by one, but when there are many slip rings, it has the following shortcomings: Repeated measurement is time-consuming: There are many slip ring loops. When measuring the radial circular runout error of each loop, the machine tool needs to be stopped each time and the probe mechanical arm needs to be readjusted to the next loop, which is highly repetitive and time-consuming.

[0005] Uniqueness: Each time the radial runout error of a ring is measured, only the specified ring can be measured.

[0006] Inconvenient to load and unload the probe: When measuring, the thickness of the power ring and the signal ring are inconsistent, and the size and specifications of the probes used for measurement are different, so the probes need to be loaded and unloaded many times. For batch inspection of slip rings, the detection efficiency is not high and the labor intensity is high.

[0007] The swing of the indicator needle of the oscillometer is not easy to observe: the probe contacts the slip ring track, and the slip ring body is rotated for detection. The swing of the oscillometer pointer in one circle of the track may be large or small, which is not easy for the detection personnel to observe.

[0008] Poor stability: During the test, stopping the machine tool equipment for contact measurement multiple times will cause the slip ring to move radially, resulting in unsatisfactory test results. Summary of the invention

[0009] In response to the above technical problems, the present invention provides a precision ring radial runout measuring device, including a display, a slide groove mechanism, a detection mechanism and a base, a first connecting rod is ball-jointed at the top of the base, a second connecting rod is fixedly installed on the top of the first connecting rod by rotating a handle, a third connecting rod is ball-jointed at the top of the second connecting rod, and a slide groove mechanism is fixedly installed on the front end of the third connecting rod.

[0010] Furthermore, the slide mechanism includes a support frame, a sensor, a first button and a fixed grid metal sheet. The support frame is fixedly connected to the third connecting rod by bolts, a roller slide is provided at the bottom of the support frame, the sensor is fixedly installed inside the support frame, the first button is fixedly installed on the right side of the support frame, and the fixed grid metal sheet is fixedly installed at the bottom of the support frame. The sensor, the first button and the fixed grid metal sheet are interconnected by wires and connected to the display by wires.

[0011] Furthermore, the detection mechanism includes a pulley, a support shaft, a detection housing, a detection connecting shaft, a telescopic frame, a moving gate and a probe. The support shaft is rotatably installed at the front end of the detection housing, and a pulley is fixedly installed at the front end of the support shaft. The pulley rolls with the roller groove at the bottom of the support frame. The detection connecting shaft is longitudinally slidably installed at the bottom of the detection housing, and the axis of the detection connecting shaft is perpendicular to the sliding direction. The telescopic frame is hinged at one end of the detection connecting shaft, and the moving gate is hinged at one end of the telescopic frame. The moving gate slides with the fixed gate metal sheet. The probe is longitudinally slidably installed at the bottom of the detection housing, and the top of the probe is hinged to the detection connecting shaft.

[0012] Furthermore, the display includes a display screen, a display body, a power supply and a second button. The display body is longitudinally slidably installed on the top of the support frame. The display screen is fixedly installed on the left side of the display body, the power supply is fixedly installed on the right side of the display body, and the second button is fixedly installed on the top of the display body. The display screen, the display body, the power supply and the second button are interconnected by wires.

[0013] Furthermore, the detection mechanism is installed in a transversely slidable manner at the bottom of the slide groove mechanism.

[0014] Compared with the prior art, the present invention has the following advantages: (1) The present invention has the characteristics of simple structure, convenient operation and simple assembly process. When in use, it only needs to be aligned once to realize multi-channel runout measurement; (2) The present invention has good interchangeability and strong versatility. For different products, it only needs to replace the measuring probe, and the remaining parts can be directly used as universal parts after assembly; (3) The present invention has high measurement accuracy. After changing to a digital display on the display screen, the radial runout accuracy can be controlled within a very small error range; (4) The present invention has a strong measurement purpose; it only needs to move the probe to the position of the slip ring segment to be measured, and rotate the slip ring one circle close to the surface of the target segment to complete the detection of the segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the overall structure of the slide mechanism of the present invention.

[0017] Figure 3 It is a schematic diagram of the half-section structure of the detection mechanism of the present invention.

[0018] Figure 4 It is a schematic diagram of the side structure of the detection mechanism of the present invention.

[0019] Figure 5 It is a schematic diagram of the overall structure of the display of the present invention.

[0020] Figure markings: 1-base; 2-first connecting rod; 3-second connecting rod; 4-rotating handle; 5-third connecting rod; 6-support frame; 7-sensor; 8-first button; 9-fixed grid metal sheet; 10-pulley; 11-support shaft; 12-detection housing; 13-detection connecting shaft; 14-telescopic frame; 15-moving grid; 16-probe; 17-display screen; 18-display body; 19-power supply; 20-second button; 21-display; 22-slide mechanism; 23-detection mechanism. DETAILED DESCRIPTION

[0021] The technical solution provided by the present invention is further described below in conjunction with the accompanying drawings and according to specific implementation methods.

[0022] like Figure 1 to Figure 5 As shown, a precision ring radial runout measuring device includes a display 21, a slide groove mechanism 22, a detection mechanism 23 and a base 1, the top of the base 1 is ball-jointed with a first connecting rod 2, the top of the first connecting rod 2 is fixedly installed with a second connecting rod 3 by rotating a handle 4, and the top of the second connecting rod 3 is ball-jointed with a third connecting rod 5.

[0023] like Figure 1 to Figure 5 As shown, the slide mechanism 22 includes a support frame 6, a sensor 7, a first button 8 and a fixed grid metal sheet 9. The slide mechanism 22 is used to provide support and a range of motion for the detection mechanism 23, and is also used to fix the display 21. The support frame 6 is fixedly connected to the third connecting rod 5 by bolts, the sensor 7 is fixedly installed inside the support frame 6, the first button 8 is fixedly installed on the right side of the support frame 6, and the fixed grid metal sheet 9 is fixedly installed at the bottom of the support frame 6 for detecting and transmitting vibration signals. The sensor 7, the first button 8 and the fixed grid metal sheet 9 are interconnected by wires, and are connected to the display 21 by wires. The detection signal transmitted to the fixed grid metal sheet 9 is transmitted to the sensor 7 for conversion by the wire, and then the signal is transmitted to the display 21 by the wire for display.

[0024] like Figure 1 to Figure 5As shown, a plurality of detection mechanisms 23 are slidably installed at the bottom of the slide groove mechanism 22, and the detection mechanism 23 includes a pulley 10, a support shaft 11, a detection housing 12, a detection connecting shaft 13, a telescopic frame 14, a moving grid 15 and a probe 16. The support shaft 11 is rotatably installed at the front end of the detection housing 12, and the pulley 10 is fixedly installed at the front end of the support shaft 11. The pulley 10 rolls with the roller slide groove at the bottom of the support frame 6 to support the detection mechanism 23. A detection slide groove is provided at the bottom of the detection housing 12, and a detection connecting shaft 13 is longitudinally slidably installed in the detection slide groove at the bottom of the detection housing 12. The detection connecting shaft 13 is The rotating shaft is installed horizontally, and the axis of the detection connecting shaft 13 is perpendicular to the sliding direction. A telescopic frame 14 is hinged at one end of the detection connecting shaft 13, and a moving gate 15 is hinged at one end of the telescopic frame 14. The moving gate 15 slides with the fixed gate metal sheet 9. The probe 16 is longitudinally slidably installed at the bottom of the detection shell 12, and the top of the probe 16 is hinged to the detection connecting shaft 13. The probe 16 is used to detect the outer circle of the ring body assembly. When the outer circle of the ring body assembly has a radial runout error, it will drive the probe 16 in contact with it to vibrate at the bottom of the detection shell 12, and transmit the vibration signal to the slide groove mechanism 22 through the telescopic frame 14 for detection.

[0025] like Figure 1 to Figure 5 As shown, the display 21 includes a display screen 17, a display body 18, a power supply 19 and a second button 20. The display body 18 is longitudinally slidably installed on the top of the support frame 6. The display screen 17 is fixedly installed on the left side of the display body 18. The display screen 17 is used to display the test results. The power supply 19 is fixedly installed on the right side of the display body 18. The second button 20 is fixedly installed on the top of the display body 18. The display screen 17, the display body 18, the power supply 19 and the second button 20 are interconnected by wires.

[0026] Working principle: In the present precision ring radial runout measuring device, the slide groove mechanism 22 is used to install the detection mechanism 23, so that the detection mechanism 23 can be moved to any position in the slide groove of the slide groove mechanism 22. The detection mechanism 23 is used to sense the degree of radial runout of the slip ring body. The slide groove of the slide groove mechanism 22 has sufficient length, and a certain number of detection mechanisms 23 can be assembled.

[0027] When there are many slip ring segments to be measured, only a corresponding number of detection mechanisms 23 need to be installed to achieve a one-time measurement of the radial runout of multiple tracks of the slip ring.

[0028] The display 21 can display real-time radial runout data according to the position of the probe 16 .

[0029] Through the ball-joint connection among the base 1, the first connecting rod 2, the second connecting rod 3 and the third connecting rod 5, the device can be rotated in all directions, and the measuring device can be adjusted to any position for measurement.

[0030] Before using the measuring device, a rotary machine tool must be used to clamp and align a slip ring product, capture the center position and realize zero calibration of the display screen. The detection mechanism 23 is pressed against the slip ring so that the probe 16 is pressed against the surface of the ring. Then the machine tool is started to drive the slip ring product to rotate one circle to observe the change of the display value, and the part is judged to be qualified according to the range of the value jump.

Claims

1. A precision ring radial runout measuring device, characterized in that: The invention comprises a display (21), a slide groove mechanism (22), a detection mechanism (23) and a base (1); a first connecting rod (2) is provided at the top of the base (1) by a ball joint; a second connecting rod (3) is fixedly mounted at the top of the first connecting rod (2) by a rotating handle (4); a third connecting rod (5) is provided at the top of the second connecting rod (3) by a ball joint; and a slide groove mechanism (22) is fixedly mounted at the front end of the third connecting rod (5).

2. A precision ring radial runout measuring device according to claim 1, characterized in that: The slide mechanism (22) comprises a support frame (6), a sensor (7), a first button (8) and a fixed grid metal sheet (9); the support frame (6) is fixedly connected to the third connecting rod (5) by bolts; a roller slide is provided at the bottom of the support frame (6); the sensor (7) is fixedly mounted inside the support frame (6); the first button (8) is fixedly mounted on the right side of the support frame (6); the fixed grid metal sheet (9) is fixedly mounted at the bottom of the support frame (6); the sensor (7), the first button (8) and the fixed grid metal sheet (9) are connected to each other by wires and are connected to the display (21) by wires.

3. A precision ring radial runout measuring device according to claim 1, characterized in that: The detection mechanism (23) comprises a pulley (10), a support shaft (11), a detection housing (12), a detection connecting shaft (13), a telescopic frame (14), a moving fence (15) and a probe (16). The support shaft (11) is rotatably mounted on the front end of the detection housing (12). The pulley (10) is fixedly mounted on the front end of the support shaft (11). The pulley (10) is in rolling cooperation with a roller groove at the bottom of the support frame (6). The detection connecting shaft (13) is longitudinally slidably mounted on the bottom of the detection housing (12). The axis of the detection connecting shaft (13) is perpendicular to the sliding direction. The telescopic frame (14) is hingedly mounted on one end of the detection connecting shaft (13). The moving fence (15) is hingedly mounted on one end of the telescopic frame (14). The moving fence (15) is slidably matched with the fixed fence metal sheet (9). The probe (16) is longitudinally slidably mounted on the bottom of the detection housing (12). The top of the probe (16) is hingedly mounted on the detection connecting shaft (13).

4. A precision ring radial runout measuring device according to claim 1, characterized in that: The display (21) comprises a display screen (17), a display body (18), a power supply (19) and a second button (20); the display body (18) is longitudinally slidably mounted on the top of the support frame (6); the display screen (17) is fixedly mounted on the left side of the display body (18); the power supply (19) is fixedly mounted on the right side of the display body (18); the second button (20) is fixedly mounted on the top of the display body (18); and the display screen (17), the display body (18), the power supply (19) and the second button (20) are interconnected via a wire.

5. A precision ring radial runout measuring device according to claim 3, characterized in that: The detection mechanism (23) is installed in a transverse sliding manner at the bottom of the slide groove mechanism (22).

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