Automatic and accurate run-out measuring instrument
By using a driving motor to drive the driving handwheel and the rotation shaft to rotate simultaneously at a uniform speed in the jumping measuring instrument, the problem of poor rotation speed uniformity in the prior art is solved, and the precise detection of the jumping amount of the components to be tested is achieved and the processing quality is accurately evaluated.
Patent Information
- Application Number
- CN202421430099.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing pulsating measuring instrument has poor speed uniformity in the rotation shaft, resulting in poor speed stability of the shaft-type components to be tested, which affects the detection results of the pulsating instrument.
An automatic and accurate jump measuring instrument is designed, and a driving motor is used to cooperate with the second driving wheel, the second driven wheel and the second synchronization belt to drive the drive handwheel to rotate at a constant speed, thereby driving the two sets of rotation axes to rotate at a uniform speed, so that the components of the shaft-type to be tested can rotate at a constant speed under the action of friction, thereby achieving accurate detection of the jump amount.
By achieving uniform rotation of the rotating shaft, the speed stability of the shaft-type components to be tested is improved, the accuracy of the jumping amount detection of the peripheral surface of the shaft-type components to be tested is ensured, and the accuracy of evaluation of processing quality is improved.
Smart Images
Figure CN222617873U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of runout measuring instruments, and in particular to an automatic and accurate runout measuring instrument. Background Art
[0002] Dental handpieces are one of the medical devices commonly used in the dental department. Dental handpieces contain many fine shaft components, and the production accuracy of shaft components will affect the performance of dental handpieces. Therefore, in the production process of shaft components, it is usually necessary to use a runout measuring instrument to detect the processing quality of shaft components. The processing quality of shaft components can be evaluated by measuring the runout of shaft components.
[0003] The existing runout measuring instrument usually includes a machine base, two sets of rotating shafts, a driving hand wheel, a synchronization mechanism and a runout meter; wherein the two sets of rotating shafts are arranged parallel to each other, both sets of rotating shafts are rotatably set on the machine base, and the two sets of rotating shafts jointly form a mounting groove for placing the shaft parts to be measured, the driving hand wheel is rotatably set on the machine base, the synchronization mechanism is connected between the driving hand wheel and the two sets of rotating shafts, and is used to drive the two sets of rotating shafts to rotate synchronously, the runout meter is fixedly set on the machine base, and the detection end of the runout meter contacts the circumference of the shaft parts to be measured. When in use, the staff controls the driving hand wheel to drive the two sets of rotating shafts to rotate synchronously, and the shaft parts to be measured rotate under the action of friction, so that the runout meter detects the circumference of the shaft parts to be measured.
[0004] However, when the staff controls the driving handwheel to drive the two sets of rotating shafts to rotate synchronously, the rotation speed uniformity of the rotating shafts is poor, resulting in poor rotation speed stability of the shaft components to be tested, thus affecting the detection results of the vibration meter. Utility Model Content
[0005] In order to enable the runout meter to perform more accurate detection of the circumferential runout of shaft components to be measured, the present application provides an automatic and accurate runout measuring instrument.
[0006] An automatic and accurate runout measuring instrument comprises a machine base; two groups of rotating shafts, the two groups of rotating shafts are rotatably arranged on the machine base, and the two groups of rotating shafts jointly form a mounting groove for placing shaft parts to be measured; a driving hand wheel, the driving hand wheel is rotatably arranged on the machine base; a synchronization mechanism, the synchronization mechanism is connected between the driving hand wheel and the two groups of rotating shafts, so that the driving hand wheel drives the two groups of rotating shafts to rotate synchronously; a runout meter, the runout meter is fixedly arranged on the machine base, and the detection end of the runout meter is in contact with the outer periphery of the shaft parts to be measured; and a driving motor, the driving motor is fixedly arranged on the machine base, and the output end of the driving motor is connected to the driving hand wheel for transmission.
[0007] Optionally, the synchronization mechanism includes a first driving wheel, two groups of first driven wheels and two groups of first synchronous belts; the first driving wheel is fixedly set on the driving handwheel, the two groups of first driven wheels are respectively fixedly set on two groups of rotating shafts, and the two groups of first synchronous belts are respectively connected between the first driving wheel and the two groups of first driven wheels.
[0008] Optionally, a second driving wheel is fixedly provided at the output end of the driving motor, a second driven wheel is fixedly provided at the driving handwheel, and a second synchronous belt is connected between the second driving wheel and the second driven wheel.
[0009] Optionally, the runout measuring instrument also includes a clamping mechanism, which includes an elastic rod, a clamping shaft and a clamping wheel, the elastic rod is fixedly arranged on the machine base, the clamping shaft is fixedly arranged on the elastic rod, the clamping wheel is rotatably arranged on the clamping shaft, and the clamping wheel is in contact with the outer periphery of the shaft component to be measured.
[0010] Optionally, the clamping shaft is slidably inserted into the elastic rod, and the elastic rod is threadedly connected with a locking bolt for locking the clamping shaft.
[0011] Optionally, the runout measuring instrument further includes a limiting mechanism, which includes a fixed block and a limiting plate, wherein the fixed block is fixedly arranged on the machine base, the limiting plate is fixedly arranged on the fixed block, and the limiting plate is in contact with the end of the shaft component to be measured.
[0012] Optionally, the first driving wheel and the two sets of first driven wheels are toothed transmission wheels, and the two sets of the first synchronous belts are toothed transmission belts.
[0013] Optionally, the second driving wheel and the second driven wheel are both grooved transmission wheels, and the second synchronous belt is a circular transmission belt.
[0014] In summary, this application at least includes the following beneficial technical effects:
[0015] The driving motor is started, and the driving motor cooperates with the second driving wheel, the second driven wheel and the second synchronous belt to drive the driving handwheel to rotate at a uniform speed. The driving handwheel cooperates with the first driving wheel, the first driven wheel and the first synchronous belt to drive the two sets of rotating shafts to rotate at a uniform speed, so that the shaft parts to be measured placed in the installation grooves formed by the two sets of rotating shafts rotate at a uniform speed under the action of friction, so that the runout instrument can more accurately detect the circumferential runout of the shaft parts to be measured, and the processing quality is evaluated by the circumferential runout of the shaft parts to be measured. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is the first overall structural diagram of this application.
[0017] Figure 2It is a second overall structural diagram of this application.
[0018] Figure 3 It is a structural schematic diagram of the clamping mechanism and the limiting mechanism in this application.
[0019] Explanation of the accompanying drawings: 1. Machine base; 2. Rotating shaft; 3. Driving hand wheel; 4. Synchronizing mechanism; 41. First driving wheel; 42. First driven wheel; 43. First synchronous belt; 5. Beating meter; 6. Driving motor; 71. Second driving wheel; 72. Second driven wheel; 73. Second synchronous belt; 8. Clamping mechanism; 81. Elastic rod; 82. Clamping shaft; 83. Clamping wheel; 84. Locking bolt; 9. Limiting mechanism; 91. Fixing block; 92. Limiting plate; 10. Shaft parts to be tested. DETAILED DESCRIPTION
[0020] The following is combined with Figure 1-3 This application is described in further detail.
[0021] The present application discloses an automatic and accurate runout measuring instrument.
[0022] Reference Figure 1-3 The automatic and precise runout measuring instrument includes a machine base 1, two groups of rotating shafts 2, a driving hand wheel 3, a synchronization mechanism 4 and a runout meter 5; wherein the two groups of rotating shafts 2 are arranged parallel to each other, the two groups of rotating shafts 2 are rotatably set on the machine base 1, and the two groups of rotating shafts 2 jointly form a mounting groove for placing the shaft components 10 to be measured; the driving hand wheel 3 is rotatably set on the machine base 1, and the synchronization mechanism 4 is connected between the driving hand wheel 3 and the two groups of rotating shafts 2, so that the driving hand wheel 3 drives the two groups of rotating shafts 2 to rotate synchronously; the runout meter 5 is fixedly set on the machine base 1, and the detection end of the runout meter 5 is in contact with the outer periphery of the shaft component 10 to be measured.
[0023] By driving the hand wheel 3, the two groups of rotating shafts 2 are driven to rotate synchronously, and the two groups of rotating shafts 2 rotate in the same direction, so that the shaft component 10 to be measured placed in the installation groove formed by the two groups of rotating shafts 2 rotates under the action of friction, so that the runout meter 5 can detect the circumferential runout of the shaft component 10 to be measured, and the processing quality is evaluated by the circumferential runout of the shaft component 10 to be measured.
[0024] In this embodiment, each group of rotating shafts 2 includes a central shaft and multiple groups of bearing trays. The two groups of central shafts are arranged parallel to each other and spaced apart, and the two groups of central shafts are rotatably set on the machine base 1. The multiple groups of bearing trays are arranged spaced apart from each other, and the multiple groups of bearing trays are fixedly set on the central shaft. The bearing trays of the two groups of rotating shafts 2 are arranged tangentially, so that the bearing trays of the two groups of rotating shafts 2 jointly form an installation groove for placing the shaft components 10 to be tested.
[0025] In this embodiment, the synchronization mechanism 4 includes a first driving wheel 41, two groups of first driven wheels 42 and two groups of first synchronous belts 43; wherein, the first driving wheel 41 and the two groups of first driven wheels 42 are both toothed transmission wheels, the first driving wheel 41 is fixedly arranged on the driving hand wheel 3, the two groups of first driven wheels 42 are respectively fixedly arranged on the two groups of rotating shafts 2, and the two groups of rotating shafts 2 are arranged staggered with each other on the vertical plane, and the two groups of first synchronous belts 43 are both toothed transmission belts, and the two groups of first synchronous belts 43 are respectively connected between the first driving wheel 41 and the two groups of first driven wheels 42. In the process of the driving hand wheel 3 driving the first driving wheel 41 to rotate, the first driving wheel 41 drives the two groups of first driven wheels 42 to rotate synchronously and in the same direction respectively through the two groups of first synchronous belts 43, thereby realizing the synchronous and same direction rotation of the two groups of rotating shafts 2, and then using the friction force to drive the shaft-type component 10 to be tested to rotate.
[0026] In this embodiment, in order to improve the uniformity of the rotation speed of the rotating shaft 2 and improve the rotation speed stability of the shaft component 10 to be measured, the runout measuring instrument also includes a drive motor 6, and the output end of the drive motor 6 is connected to the drive handwheel 3 for transmission; specifically, the drive motor 6 is a servo motor, and the drive motor 6 is fixedly arranged on the machine base 1, and the output end of the drive motor 6 is fixedly provided with a second driving wheel 71, and the drive handwheel 3 is fixedly provided with a second driven wheel 72, and the second driving wheel 71 and the second driven wheel 72 are both groove transmission wheels, and a second synchronous belt 73 is connected between the second driving wheel 71 and the second driven wheel 72, and the second synchronous belt 73 is a circular transmission belt adapted to the groove transmission wheel. Start the drive motor 6, which cooperates with the second active wheel 71, the second driven wheel 72 and the second synchronous belt 73 to drive the drive handwheel 3 to rotate at a uniform speed. The drive handwheel 3 cooperates with the first active wheel 41, the first driven wheel 42 and the first synchronous belt 43 to drive the two groups of rotating shafts 2 to rotate at a uniform speed, so that the rotation speed of the shaft component 10 to be tested is more stable, thereby ensuring that the detection result of the vibration meter 5 is more accurate.
[0027] In this embodiment, the runout measuring instrument further includes a clamping mechanism 8, which includes an elastic rod 81, a clamping shaft 82 and a clamping wheel 83; wherein the elastic rod 81 is a sheet metal structure and has elasticity, one end of the elastic rod 81 is fixedly arranged on the machine base 1, and the other end of the elastic rod 81 is provided with a mounting hole, the clamping shaft 82 is slidably penetrated through the end of the elastic rod 81 through the mounting hole, and the end of the elastic rod 81 is threadedly connected with a locking bolt 84, the locking bolt 84 penetrates through the mounting hole and abuts against the clamping shaft 82 to lock the clamping shaft 82; the clamping wheel 83 is rotatably arranged on the clamping shaft 82, and the clamping wheel 83 is in contact with the outer periphery of the shaft component 10 to be measured. By utilizing the cooperation of the elastic rod 81, the clamping shaft 82 and the clamping wheel 83, the clamping wheel 83 produces a clamping effect on the shaft component 10 to be measured, thereby ensuring that the shaft component 10 to be measured can be rotated by friction.
[0028] In this embodiment, the runout measuring instrument further includes a limiting mechanism 9, which includes a fixed block 91 and a limiting piece 92; wherein the fixed block 91 is fixedly arranged on the machine base 1, the limiting piece 92 is fixedly arranged on the fixed block 91, and the limiting piece 92 is in contact with the end of the shaft component 10 to be measured. The shaft component 10 to be measured is positioned by the limiting piece 92 of the limiting mechanism 9, so as to facilitate the installation and detection of the shaft component 10 to be measured.
[0029] Implementation principle: start the drive motor 6, and the drive motor 6 cooperates with the second active wheel 71, the second driven wheel 72 and the second synchronous belt 73 to drive the drive hand wheel 3 to rotate at a uniform speed. The drive hand wheel 3 cooperates with the first active wheel 41, the first driven wheel 42 and the first synchronous belt 43 to drive the two groups of rotating shafts 2 to rotate at a uniform speed, so that the shaft component 10 to be measured placed in the installation groove formed by the two groups of rotating shafts 2 rotates at a uniform speed under the action of friction, so that the runout meter 5 can more accurately detect the circumferential runout of the shaft component 10 to be measured, and the processing quality is evaluated by the circumferential runout of the shaft component 10 to be measured.
[0030] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An automatic and accurate runout measuring instrument, characterized in that: It comprises a base (1); Rotating shafts (2), wherein two groups of rotating shafts (2) are provided, and both groups of rotating shafts (2) are rotatably provided on the machine base (1), and the two groups of rotating shafts (2) jointly form a mounting groove for placing the shaft component (10) to be tested; A driving hand wheel (3), the driving hand wheel (3) is rotatably arranged on the machine base (1); A synchronization mechanism (4), the synchronization mechanism (4) is connected between the driving hand wheel (3) and the two sets of rotating shafts (2), so that the driving hand wheel (3) drives the two sets of rotating shafts (2) to rotate synchronously; A runout meter (5), the runout meter (5) is fixedly arranged on the machine base (1), and a detection end of the runout meter (5) is in contact with the outer periphery of the shaft component (10) to be tested; A driving motor (6) is fixedly arranged on the machine base (1), and an output end of the driving motor (6) is drivingly connected to a driving hand wheel (3).
2. An automatic and accurate runout measuring instrument according to claim 1, characterized in that: The synchronization mechanism (4) comprises a first driving wheel (41), two groups of first driven wheels (42) and two groups of first synchronous belts (43); the first driving wheel (41) is fixedly arranged on the driving hand wheel (3), the two groups of the first driven wheels (42) are respectively fixedly arranged on the two groups of rotating shafts (2), and the two groups of the first synchronous belts (43) are respectively connected between the first driving wheel (41) and the two groups of the first driven wheels (42).
3. An automatic and accurate runout measuring instrument according to claim 1, characterized in that: A second driving wheel (71) is fixedly provided at the output end of the driving motor (6), a second driven wheel (72) is fixedly provided on the driving hand wheel (3), and a second synchronous belt (73) is connected between the second driving wheel (71) and the second driven wheel (72).
4. The automatic and accurate runout measuring instrument according to claim 1, characterized in that: The runout measuring instrument further comprises a clamping mechanism (8), the clamping mechanism (8) comprising an elastic rod (81), a clamping shaft (82) and a clamping wheel (83), the elastic rod (81) being fixedly arranged on the machine base (1), the clamping shaft (82) being fixedly arranged on the elastic rod (81), the clamping wheel (83) being rotatably arranged on the clamping shaft (82), and the clamping wheel (83) being in contact with the outer periphery of the shaft component (10) to be measured.
5. An automatic and accurate runout measuring instrument according to claim 4, characterized in that: The clamping shaft (82) is slidably inserted into the elastic rod (81), and the elastic rod (81) is threadedly connected with a locking bolt (84) for locking the clamping shaft (82).
6. The automatic and accurate runout measuring instrument according to claim 1, characterized in that: The runout measuring instrument further comprises a limiting mechanism (9), the limiting mechanism (9) comprising a fixed block (91) and a limiting plate (92), the fixed block (91) being fixedly arranged on the machine base (1), the limiting plate (92) being fixedly arranged on the fixed block (91), and the limiting plate (92) being in contact with the end of the shaft component (10) to be measured.
7. An automatic and accurate runout measuring instrument according to claim 2, characterized in that: The first driving wheel (41) and the two sets of first driven wheels (42) are all toothed transmission wheels, and the two sets of the first synchronous belts (43) are toothed transmission belts.
8. The automatic and accurate runout measuring instrument according to claim 3, characterized in that: The second driving wheel (71) and the second driven wheel (72) are both grooved transmission wheels, and the second synchronous belt (73) is a circular transmission belt.