Gauge for detecting position degree of internal spline and external flow distribution groove of output shaft of cycloid motor

Abstract

The utility model relates to the technical field of output shaft internal spline detection, in particular to a cycloid motor output shaft internal spline and external flow distribution groove position degree testing fixture, which comprises a bottom plate and a spline mandrel, a base used for assembling the spline mandrel is arranged in the middle of the upper surface of the bottom plate, and a positioning pin support is arranged on the upper surface of the bottom plate and positioned on one side of the base. A positioning pin controlled by an outer hand wheel transversely penetrates through the interior of the positioning pin support. According to the cycloid motor output shaft internal spline and external flow distribution groove position accuracy testing fixture, the positioning pin is used as a positioning element, and the testing fixture not only can stretch out and draw back freely, but also is accurate in positioning, high in matching precision and good in rigidity; the positioning pin is adopted to abut against the notch of the flow distribution groove, so that the center of the positioning pin is aligned with the center of the notch, and then the dial indicator at the measuring rod is used for measuring and calculating, so that a result can be visually and conveniently displayed, and detection is more convenient; the whole equipment is simple in structure, convenient to operate and high in precision.

Description

Technical Field

[0001] This utility model relates to the field of output shaft internal spline detection technology, and in particular to a position gauge for the internal spline and external distribution groove of a cycloidal motor output shaft. Background Technology

[0002] A crucial component of a shaft-driven motor is the output shaft. The positional accuracy of its distribution grooves plays a decisive role in the motor's distribution accuracy. The output shaft transmits motion and torque externally and accurately distributes pressurized oil to the rotor-stator pair, driving the rotor to rotate. The moving rotor then drives the output shaft to rotate via the linkage shaft, thus distributing the oil. If the distribution grooves are inaccurate, it will affect the accuracy and smoothness of the motion, leading to oil trapping, noise, and vibration, ultimately impacting the motor's efficiency. Therefore, it is necessary to control the machining of the distribution grooves.

[0003] For many years, there has been no good way to inspect and measure distribution channels. Most methods are too complicated, the processing accuracy cannot be guaranteed, and ultimately no qualified samples have been produced. Utility Model Content

[0004] The technical problem this utility model aims to solve is that there has been no good way to inspect and measure distribution channels for many years. Most methods are too complicated, the processing accuracy cannot be guaranteed, and no qualified samples have been produced.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a position gauge for the inner spline and outer distribution groove of a cycloidal motor output shaft, including a base plate and a spline mandrel. A base for assembling the spline mandrel is installed at the middle position of the upper surface of the base plate. A positioning pin bracket is installed on one side of the upper surface of the base plate. A positioning pin controlled by an outer handwheel passes through the inside of the positioning pin bracket. A dial indicator for detecting the spline mandrel is installed on one side of the upper surface of the base through a dial indicator bracket. A lateral detection groove is opened on the side wall of the spline mandrel. A measuring rod that cooperates with the dial indicator is inserted laterally into the inner wall of the lateral detection groove.

[0006] The base has an assembly hole at the center of its upper surface for assembling a splined mandrel.

[0007] A planar bearing is installed on the bottom surface of the assembly hole.

[0008] The outer handwheel includes a handwheel axially fixed to the locating pin and a gripper fixed to one side of the outer side of the handwheel.

[0009] The dial indicator bracket has a downwardly recessed detection groove at the measuring end.

[0010] A dustproof ring is installed at the upper opening of the assembly hole.

[0011] A thrust washer is provided at the lower end of the dustproof ring.

[0012] The beneficial effects of this utility model are:

[0013] (1) The position gauge of the inner spline and outer flow groove of the output shaft of the cycloidal motor of this utility model uses a positioning pin as a positioning element, which not only extends and retracts freely, but also positions accurately, with high fitting accuracy and good rigidity.

[0014] (2) Use a positioning pin to hold the opening of the distribution channel, align the center of the positioning pin with the center of the opening, and then use a dial indicator at the measuring rod to make the calculation. The result can be displayed intuitively and conveniently, making the test more convenient.

[0015] (3) The entire equipment has a simple structure, is easy to operate, and has high precision. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0020] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0021] Figure 1 and Figure 2The cycloidal motor output shaft internal spline and external distribution groove position gauge shown includes a base plate 1 and a spline mandrel 2. A base 3 for assembling the spline mandrel 2 is installed at the middle of the upper surface of the base plate 1. A positioning pin bracket 4 is installed on one side of the upper surface of the base plate 1 near the base 3. A positioning pin 6 controlled by an outer handwheel 5 passes through the interior of the positioning pin bracket 4 laterally. A dial indicator 8 for testing the spline mandrel 2 is installed on one side of the upper surface of the base 3 via a dial indicator bracket 7. A lateral detection groove 9 is opened on the side wall of the spline mandrel 2. A measuring rod 10 that cooperates with the dial indicator 8 is inserted laterally into the inner wall of the lateral detection groove 9.

[0022] Fix the distribution channel opening in the ideal position, and use a backlash-free spline mandrel 2 to fit the internal spline. If the internal spline deflects, then the spline mandrel 2 will also deflect. The lower end of the spline mandrel 2 is connected to a measuring rod 10, so the deflection of the spline mandrel 2 will be reflected on the measuring rod 10. We can use a dial indicator 8 to measure the deflection data of the measuring rod 10, and by conversion, we can obtain the position error data.

[0023] The measurement process involves two steps: First, zeroing: Position the locating pin against the tooth groove of the splined mandrel, aligning the center of the locating pin with the center of the tooth groove. At this point, zero the dial indicator on the measuring rod. Second, measurement: Place the workpiece to be measured onto the splined mandrel, with the locating pin against the opening of the distribution groove, aligning the center of the locating pin with the center of the groove. If any machining error exists, the dial indicator will display it.

[0024] The upper surface of the base 3 has a mounting hole at the center for mounting the splined spindle 2.

[0025] A flat bearing 11 is installed on the bottom surface of the assembly hole.

[0026] The outer handwheel 5 includes a handwheel 51 that is axially fixed to the positioning pin 6 and a handle 52 fixed to one side of the outer side of the handwheel 51.

[0027] The dial indicator bracket 7 has a downwardly recessed detection groove at the measuring end.

[0028] A dustproof ring 12 is installed at the upper opening of the assembly hole.

[0029] A thrust washer 13 is provided at the lower end of the dustproof ring 12.

[0030] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A position gauge for the inner spline and outer distribution groove of a cycloidal motor output shaft, comprising a base plate (1) and a spline mandrel (2), characterized in that: A base (3) for assembling a splined spindle (2) is installed at the middle of the upper surface of the base plate (1). A positioning pin bracket (4) is installed on one side of the base (3) on the upper surface of the base plate (1). A positioning pin (6) controlled by an outer handwheel (5) runs horizontally through the positioning pin bracket (4). A dial indicator (8) for testing the splined spindle (2) is installed on one side of the upper surface of the base (3) through a dial indicator bracket (7). A lateral detection groove (9) is opened on the side wall of the splined spindle (2). A measuring rod (10) that cooperates with the dial indicator (8) is inserted horizontally into the inner wall of the lateral detection groove (9).

2. The position measurement fixture for the inner spline and outer distribution groove of the output shaft of a cycloidal motor according to claim 1, characterized in that: The base (3) has an assembly hole at the center of its upper surface for assembling the spline spindle (2).

3. The position measurement fixture for the inner spline and outer distribution groove of the output shaft of a cycloidal motor according to claim 2, characterized in that: A flat bearing (11) is installed on the bottom surface of the assembly hole.

4. The position measurement fixture for the inner spline and outer distribution groove of the output shaft of a cycloidal motor according to claim 1, characterized in that: The outer handwheel (5) includes a handwheel (51) axially fixed to the positioning pin and a gripper (52) fixed to one side of the outer side of the handwheel (51).

5. The position measurement fixture for the inner spline and outer distribution groove of the output shaft of a cycloidal motor according to claim 1, characterized in that: The dial gauge bracket (7) has a downwardly recessed detection groove at the measuring end.

6. The position measurement fixture for the inner spline and outer distribution groove of the output shaft of a cycloidal motor according to claim 2, characterized in that: A dustproof ring (12) is installed at the upper opening of the assembly hole.

7. The position measurement fixture for the inner spline and outer distribution groove of the output shaft of a cycloidal motor according to claim 6, characterized in that: A thrust washer (13) is provided at the lower end of the dustproof ring (12).

Images