Run-out error size detection tool for flexible gear ring of harmonic reducer

Abstract

The utility model provides a harmonic reducer flexible gear ring run-out error dimension detection tool, which relates to the technical field of speed reduction mechanical equipment manufacturing and comprises a base plate, an expansion shaft, a connecting column and a dial indicator. Wherein the connecting column is rotatably connected to the base plate through the rotating bearing, the expansion shaft is connected to the connecting column, the to-be-tested flexible gear is connected to the expansion shaft in an expansion manner, and the end part of the dial indicator is in contact with the gear tooth surface of the to-be-tested flexible gear. The beneficial effects of the utility model are that when the detection tool works, the rotating connection column can drive the to-be-detected flexible gear to rotate, so that the tooth tops of the external teeth of the to-be-detected flexible gear are in contact with the end part of the dial indicator one by one, and the dial indicator can rapidly measure the tooth ring runout error of the external teeth of the to-be-detected flexible gear; the detection tool is convenient to operate, high in measurement efficiency, simple in structure and low in cost, and the detection tool can remarkably reduce the equipment cost for detecting the radial run-out error of the inner hole of the rigid wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reduction mechanical equipment manufacturing, in particular to a harmonic speed reducer flexspline gear ring runout error size detection tool. Background Art

[0002] The harmonic reducer is a high-precision reducer with a high reduction ratio. A flexible wheel with a circular sleeve structure is provided inside the harmonic reducer. An outer ring gear is provided on the outer surface of the flexible wheel. The outer ring gear has multiple gear teeth, and the flexible wheel also needs to have a certain elasticity. The outer ring gear of the flexible wheel needs to mesh with the inner tooth part of the rigid wheel. The manufacturing accuracy of the flexible wheel teeth and the rigid wheel teeth is very high. The harmonic reducer needs to be tested for tooth matching on the rigid wheel and the flexible wheel before assembly. The tooth matching test needs to measure the runout error of the flexible wheel teeth (i.e. the runout error of the top circle of the outer wheel teeth of the flexible wheel) according to the actual situation. The commonly used measurement method now is to perform tooth profile detection on the finished flexible wheel on the tooth profile detection center (Klingberg gear tester) to obtain the specific size, and calculate the runout error of the flexible wheel gear ring based on the size. The tooth profile detection is time-consuming (it takes more than 20 minutes to detect a flexible wheel), and the equipment cost of the tooth profile detection center is high, which is difficult to implement on a large scale. Utility Model Content

[0003] In view of this, in order to improve the detection efficiency of the flexwheel gear ring runout error of the harmonic reducer and reduce the equipment cost of the flexwheel gear ring runout error detection, the utility model provides a harmonic reducer flexwheel gear ring runout error size detection tool, including: a base plate, an expansion shaft, a connecting column and a micrometer;

[0004] An upper connecting shaft is provided at the upper end of the connecting column, and a lower connecting shaft is provided at the lower end, and the lower connecting shaft of the connecting column is rotatably connected to the base plate through a rotating bearing;

[0005] The bottom of the expansion shaft is provided with a mounting shaft hole, the upper end of the expansion shaft is a tensioning column, the upper connecting shaft is located in the mounting shaft hole, so that the expansion shaft can rotate synchronously with the connecting column, the flexible wheel to be tested is sleeved on the tensioning column, and the tensioning column tightens and fixes the flexible wheel to be tested.

[0006] The micrometer is arranged on the side surface of the flexible spline to be measured, and the end of the micrometer can extend to the gear tooth surface of the flexible spline to be measured.

[0007] Furthermore, a base ring is provided on the base plate, the base ring is fixed on the base plate, and the outer ring of the rotating bearing is fixed in the base ring.

[0008] Furthermore, a mounting seat is provided on the base plate, and the micrometer is fixed to the mounting seat.

[0009] Furthermore, the mounting seat includes a connecting seat plate, a support column and a connecting arm, the connecting seat plate is arranged on the base plate, the support column is vertically fixed on the connecting seat plate, the connecting seat plate is arranged on the base plate, one end of the connecting arm is fixedly connected to the support column, and the micrometer is fixed to the other end of the connecting arm.

[0010] Furthermore, the base plate is provided with two parallel slide rails, each slide rail is slidably provided with a slider, and both ends of the connecting seat plate are respectively fixed on the two sliders.

[0011] Furthermore, two slide rail grooves are provided on the base plate, and the two slide rails are respectively located in the two slide rail grooves.

[0012] Furthermore, the rotary bearing is a crossed roller bearing.

[0013] Furthermore, the expansion shaft is a liquid expansion shaft, a tensioning liquid is injected into the liquid expansion shaft, a liquid expansion hole is provided on the side of the expansion shaft, and a liquid expansion screw is provided in the liquid expansion hole.

[0014] Furthermore, the base ring is fixed to the base plate by a first fastening screw.

[0015] Furthermore, a connecting boss is provided in the middle of the connecting column, the outer ring of the rotating bearing is fixed to the base ring by a second fastening screw, and the connecting boss is fixedly connected to the inner ring of the rotating bearing by a third fastening screw.

[0016] The utility model provides a harmonic reducer flexible wheel gear ring runout error size detection tooling with beneficial effects as follows: the detection tooling comprises: a base plate, an expansion shaft, a connecting column and a micrometer; wherein the connecting column is rotatably connected to the base plate through a rotating bearing, the expansion shaft is connected to the connecting column, the flexible wheel to be measured is tensioned and connected to the expansion shaft, the end of the micrometer is in contact with the gear tooth surface of the flexible wheel to be measured, when the detection tooling is working, the rotating connecting column can drive the flexible wheel to be measured to rotate, so that the tooth tops of the external teeth of the flexible wheel to be measured are in contact with the end of the micrometer one by one, and then the micrometer can quickly measure the runout error of the external teeth of the flexible wheel to be measured. The detection tooling is easy to operate and has high measurement efficiency. At the same time, the detection tooling has a simple structure and low cost, and can significantly reduce the equipment cost of the flexible wheel inner hole radial runout error detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a harmonic reducer flexspline gear ring runout error dimension detection tooling in operation according to an embodiment of the utility model.

[0018] Figure 2 The utility model is a schematic cross-sectional structure diagram of a harmonic reducer flexspline gear ring runout error dimension detection tooling when the tooling is working.

[0019] In the above figure: 1-base plate, 11-slide rail groove, 2-base ring, 3-rotating bearing, 4-expansion shaft, 41-mounting shaft hole, 42-tensioning column, 43-hydraulic expansion screw, 5-connecting column, 51-upper connecting shaft, 52-lower connecting shaft, 6-flexible wheel to be measured, 61-flexible wheel outer gear ring, 7-micrometer, 8-slide rail, 81-slider, 82-connecting seat plate, 83-support column, 84-connecting arm. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the implementation mode of the utility model will be further described below in conjunction with the accompanying drawings.

[0021] Please refer to Figure 1 and Figure 2 The utility model discloses a harmonic reducer flexible gear ring runout error size detection tool, comprising: a base plate 1, an expansion shaft 4, a connecting column 5 and a micrometer 7.

[0022] The base plate 1 is a rectangular plate, and a base ring 2 with a circular ring structure is provided on the base plate. The base ring 2 is fixed on the base plate 1 .

[0023] The upper end of the connecting column 5 is provided with an upper connecting shaft 51, the middle part is provided with a connecting boss, and the lower end is provided with a lower connecting shaft 52. The lower connecting shaft 52 of the connecting column 5 is rotatably connected to the base plate 1 through the rotating bearing 3; specifically, the outer ring of the rotating bearing 3 is fixed in the base ring 2. The lower connecting shaft 52 is fixed in the inner ring of the rotating bearing 3.

[0024] The bottom of the expansion shaft 4 is provided with a mounting shaft hole 41, the upper end of the expansion shaft 4 is a tensioning column 42, the upper connecting shaft 51 is located in the mounting shaft hole 41, the upper connecting shaft 51 and the mounting shaft hole 41 are fixed by tensioning, so that the expansion shaft 4 can rotate synchronously with the connecting column 5, the flexible wheel 6 to be measured is sleeved on the tensioning column 42, the tensioning column 42 fixes the flexible wheel 6 to be measured by tensioning, the outer wall of the flexible wheel 6 to be measured is provided with a flexible wheel outer gear ring 61, the flexible wheel outer gear ring 61 includes a circle of gear teeth, the micrometer 7 is arranged on the side of the flexible wheel 6 to be measured, the micrometer 7 is arranged horizontally, the height of the micrometer 7 is the same as the height of the flexible wheel outer gear ring 61, and the axis of the micrometer 7 vertically passes through the axis of the flexible wheel 6 to be measured, and the end of the micrometer 7 (the end of the micrometer 7 is the detection end, and its end is retractable) extends to the tooth top surface of the gear tooth of the flexible wheel 6 to be measured.

[0025] The rotating bearing 3 is used to drive the expansion shaft 4 and the flexible wheel 6 to be tested to rotate, so that the micrometer 7 can measure the tooth top positions of all teeth of the flexible wheel outer gear ring 61 of the flexible wheel 6 to be tested, and then quickly measure the runout error of the flexible wheel gear ring to be tested. The detection tool is easy to operate and has high measurement efficiency. At the same time, the detection tool has a simple structure and low cost, which can significantly reduce the equipment cost of the flexible wheel inner hole radial runout error detection.

[0026] Preferably, the rotating bearing 3 is a cross roller bearing, which has a very small clearance and can reduce the runout error of the flex spline gear ring.

[0027] Preferably, the base plate 1 is also provided with a mounting seat, and the micrometer 7 is fixed to the mounting seat. The mounting seat includes a connecting seat plate 82, a support column 83 and a connecting arm 84. The connecting seat plate 82 is arranged on the base plate 1, and the support column 83 is vertically fixed on the connecting seat plate 82. The connecting seat plate 82 is arranged on the base plate 1, and one end of the connecting arm 84 is fixedly connected to the support column 83, and the micrometer 7 is fixed to the other end of the connecting arm 84. The base plate 1 is provided with two parallel slide rails 8, and each slide rail 8 is slidably provided with a slider 81, and the two ends of the connecting seat plate 82 are respectively fixed to the two sliders 81. The base plate 1 is provided with two slide rail grooves 11, and the two slide rails 8 are respectively located in the two slide rail grooves 11. The slide rail 8 and the slider 81 are used to enable the base plate 1 and the micrometer 7 to move on the base plate 1, so that the flexible wheel 6 to be measured on the expansion shaft 4 can be easily replaced, and the position interference of the micrometer 7 when the flexible wheel 6 to be measured is prevented from occurring during the disassembly and installation of the flexible wheel 6 to be measured. It can be understood that during the process of measuring the same flexible wheel 6 to be measured, the position of the micrometer 7 remains unchanged, and only the detection end thereof is slightly extended and retracted to contact the tooth tops of all the gear teeth.

[0028] Preferably, the expansion shaft 4 is a liquid expansion shaft, the liquid expansion shaft is provided with a liquid expansion chamber, the liquid expansion chamber is provided with a tightening liquid, the tightening liquid extends to the outside of the mounting shaft hole 41 and the inside of the tightening column 42, the side of the expansion shaft 4 is provided with a liquid expansion hole, the liquid expansion hole is provided with a liquid expansion screw 43, tightening the liquid expansion screw 43 also reduces the space of the liquid expansion chamber, at this time, the tightening effect of the tightening liquid reduces the inner diameter of the mounting shaft hole 41 and expands the outer diameter of the tightening column 42, so that the upper connecting shaft 51 and the mounting shaft hole 41 can be fixed by tightening, and the tightening column 42 can fix the flexible wheel 6 to be tested by tightening. The above-mentioned liquid expansion shaft structure and principle are prior art, and its specific structure is not introduced in detail here.

[0029] Preferably, the base ring 2 is fixed to the base plate 1 by a first fastening screw. The outer ring of the rotating bearing 3 is fixed to the base ring 2 by a second fastening screw, and the connecting boss is fixedly connected to the inner ring of the rotating bearing 3 by a third fastening screw.

[0030] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0031] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A harmonic reducer flexspline gear ring runout error size detection tool, characterized in that: include: Base plate, expansion shaft, connecting column and micrometer; An upper connecting shaft is provided at the upper end of the connecting column, and a lower connecting shaft is provided at the lower end, and the lower connecting shaft of the connecting column is rotatably connected to the base plate through a rotating bearing; The bottom of the expansion shaft is provided with a mounting shaft hole, the upper end of the expansion shaft is a tensioning column, the upper connecting shaft is located in the mounting shaft hole, the expansion shaft can rotate synchronously with the connecting column, the flexible wheel to be tested is sleeved on the tensioning column, and the tensioning column tightens and fixes the flexible wheel to be tested. The micrometer is arranged on the side surface of the flexible spline to be measured, and the end of the micrometer can extend to the gear tooth surface of the flexible spline to be measured.

2. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 1, characterized in that: A base ring is provided on the base plate, the base ring is fixed on the base plate, and the outer ring of the rotating bearing is fixed in the base ring.

3. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 1, characterized in that: The base plate is also provided with a mounting seat, and the micrometer is fixed to the mounting seat.

4. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 3, characterized in that: The mounting seat includes a connecting seat plate, a support column and a connecting arm. The connecting seat plate is arranged on the base plate. The support column is vertically fixed on the connecting seat plate. One end of the connecting arm is fixedly connected to the support column. The micrometer is fixed to the other end of the connecting arm.

5. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 4, characterized in that: The base plate is provided with two parallel slide rails, each of which has a sliding block slidably arranged thereon, and the two ends of the connecting base plate are respectively fixed on the two sliding blocks.

6. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 5, characterized in that: The base plate is provided with two slide rail grooves, and the two slide rails are respectively located in the two slide rail grooves.

7. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 1, characterized in that: The rotary bearing is a cross roller bearing.

8. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 1, characterized in that: The expansion shaft is a liquid expansion shaft, a tightening liquid is injected into the liquid expansion shaft, a liquid expansion hole is arranged on the side of the expansion shaft, and a liquid expansion screw is arranged in the liquid expansion hole.

9. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 2, characterized in that: The base ring is fixed to the base plate by a first fastening screw.

10. The harmonic reducer flexspline gear ring runout error size detection tool according to claim 2, characterized in that: A connecting boss is provided in the middle of the connecting column, the outer ring of the rotating bearing is fixed to the base ring by a second fastening screw, and the connecting boss is fixedly connected to the inner ring of the rotating bearing by a third fastening screw.

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