A precision ring radial runout measuring device

Abstract

The present invention provides a precision ring radial runout measuring device, which belongs to the field of measurement technology of ring body components in precision conductive slip rings. The device comprises a display, a slide groove mechanism, a detection mechanism and a base. A first connecting rod is provided with a ball joint on 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 provided with a ball joint on the top of the second connecting rod. A slide groove mechanism is fixedly installed on the front end of the third connecting rod. The detection mechanism and the display mechanism enable the product to achieve fixed-point measurement in any area of ​​the ring body, with stable and reliable positioning, improved measurement data accuracy, and greatly improved detection efficiency. The device has the characteristics of simple structure, easy operation, and simple assembly process. When used, multi-ring runout measurement can be achieved by only performing one alignment. The device has good interchangeability and strong versatility. For different products, only the measuring probe needs to be replaced, and the remaining components can be directly used as universal parts after assembly.

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 device for measuring radial runout of a precision ring body. Background Art

[0002] Precision conductive slip rings typically consist of a shaft assembly, ring discs, insulating spacers, a pressure plate, and a bearing seat. These components must maintain high coaxiality. To ensure stable electrical transmission performance, the radial runout error of the ring assembly's outer diameter is measured relative to the shaft assembly's center axis.

[0003] In the actual production of ring assemblies, a dial indicator is generally used for measurement. The dial indicator is connected to the chute via a special-shaped structure at the end. The end of the chute is connected to the telescopic rod. The telescopic rod is fixed at a specified position on the machine tool, and the ring assemblies are measured one by one.

[0004] This detection method can meet the requirements of testing the slip rings one by one, but when the number of slip rings is large, it has the following shortcomings:

[0005] 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 and the probe robot arm needs to be readjusted to the next loop each time. This is highly repetitive and time-consuming.

[0006] Uniqueness: Each time the radial runout error of a ring is measured, only the specified ring can be measured.

[0007] Inconvenient probe assembly and disassembly: During measurement, the power ring and signal ring thicknesses are inconsistent, and the probes used for measurement vary in size and specifications, requiring multiple probe assembly and disassembly. This results in low efficiency and high labor intensity for batch inspection of slip rings.

[0008] The swing of the indicator needle of the oscillator 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 oscillator pointer may be large or small during one circle of the track, which is not easy for the detection personnel to observe.

[0009] Poor stability: During testing, 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

[0010] In response to the above technical problems, the present invention provides a precision ring radial runout measuring device, including a display, a slide mechanism, a detection mechanism and a base. The top of the base is ball-jointed with a first connecting rod, the top of the first connecting rod is fixedly installed with a second connecting rod by rotating a handle, the top of the second connecting rod is ball-jointed with a third connecting rod, and the front end of the third connecting rod is fixedly installed with a slide mechanism.

[0011] 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 connected to each other by wires and connected to the display by wires.

[0012] Furthermore, the detection mechanism includes a pulley, a support shaft, a detection housing, a detection connecting shaft, a telescopic frame, a movable 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 detection connecting shaft is hinged at one end with the telescopic frame, and the movable gate is hinged at one end of the telescopic frame. The movable 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.

[0013] 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.

[0014] Furthermore, the detection mechanism is installed in a transversely slidable manner at the bottom of the slide mechanism.

[0015] 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 is only necessary to replace the measuring probe, and the remaining components 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 is only necessary 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

[0016] Figure 1 It is a schematic diagram of the front structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the slide mechanism of the present invention.

[0018] Figure 3 It is a schematic diagram of the half-section structure of the detection mechanism of the present invention.

[0019] Figure 4 It is a schematic diagram of the side structure of the detection mechanism of the present invention.

[0020] Figure 5 Schematic diagram of the overall structure of the display of the present invention.

[0021] 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

[0022] The technical solution provided by the present invention will be further described below with reference to the accompanying drawings and according to specific implementation methods.

[0023] like Figures 1 to 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 spherically hinged 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 spherically hinged with a third connecting rod 5.

[0024] like Figures 1 to 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 for display by the wire.

[0025] like Figures 1 to 5As shown, a plurality of detection mechanisms 23 are slidably installed at the bottom of the slide mechanism 22. 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 front end of the detection housing 12 is rotatably installed with the support shaft 11, and the front end of the support shaft 11 is fixedly installed with a pulley 10. 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. 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 movable gate 15 is hinged at one end of the telescopic frame 14. The movable 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.

[0026] like Figures 1 to 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.

[0027] Working Principle: In this precision ring radial runout measurement device, the chute mechanism 22 is used to mount the detection mechanism 23, allowing the detection mechanism 23 to move to any position within the chute of the chute mechanism 22. The detection mechanism 23 is used to sense the degree of radial runout of the slip ring. The chute of the chute mechanism 22 is of sufficient length to accommodate a certain number of detection mechanisms 23.

[0028] 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 slip rings.

[0029] The display 21 can display real-time radial runout data based on the position of the probe 16 .

[0030] The spherical joint connection among the base 1, the first connecting rod 2, the second connecting rod 3 and the third connecting rod 5 can realize all-round rotation of the device, and the measuring device can be adjusted to any position for measurement.

[0031] Before using this measuring device, a slip ring must be clamped and aligned using a rotary machine tool to capture the center position and zero the display. The detection mechanism 23 is placed against the slip ring, pressing the probe 16 against the surface of the ring. The machine tool is then started to rotate the slip ring one full revolution, and the display value is observed. The part's acceptance is determined based on the fluctuation range of the value.

Claims

1. A precision ring radial runout measuring device, comprising a display (21), a slide mechanism (22), a detection mechanism (23) and a base (1), wherein a first connecting rod (2) is provided at the top of the base (1) via a ball joint, a second connecting rod (3) is fixedly mounted at the top of the first connecting rod (2) via a rotating handle (4), a third connecting rod (5) is provided at the top of the second connecting rod (3), and a slide mechanism (22) is fixedly mounted at the front end of the third connecting rod (5); The slide mechanism (22) includes 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 a bolt, 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 a wire and are connected to the display (21) by a wire; 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 front end of the detection housing (12) is rotatably mounted with the support shaft (11), the front end of the support shaft (11) is fixedly mounted with the pulley (10), the pulley (10) is rollingly matched with the roller groove at the bottom of the support frame (6), the bottom of the detection housing (12) is longitudinally slidably mounted with the detection connecting shaft (13), the axis of the detection connecting shaft (13) is perpendicular to the sliding direction, one end of the detection connecting shaft (13) is hinged with the telescopic frame (14), one end of the telescopic frame (14) is hinged with the moving grid (15), the moving grid (15) is slidingly matched with the fixed grid metal sheet (9), the probe (16) is longitudinally slidably mounted on the bottom of the detection housing (12), and the top of the probe (16) is hinged with the detection connecting shaft (13); The display (21) includes a display screen (17), a display body (18), a power supply (19) and a second button (20), wherein 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), and 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 connected to each other via a wire.

2. A precision ring radial runout measuring device according to claim 1, characterized in that: The detection mechanism (23) is installed in a transverse sliding manner at the bottom of the slide mechanism (22).

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