Gauge for coaxiality of internal spline and excircle of output shaft of cycloid motor

Abstract

The utility model relates to the technical field of cycloid motor output shaft internal spline coaxiality detection, in particular to a cycloid motor output shaft internal spline and excircle coaxiality detection tool, which comprises a chassis, a lower cover fixed at the upper end of the chassis through bolts, a shell fixed at the upper end of the lower cover through bolts, and an upper cover fixed at the upper end of the shell through bolts. And a spline mandrel for sleeving a workpiece is inserted into the shell and the upper cover. According to the cycloid motor output shaft internal spline and outer circle coaxiality detection tool, coaxiality detection is carried out on the output shaft internal spline in a manner of rotation after sleeving, so that the detection efficiency is greatly improved; hand-held detection is not needed, and the stability and the detection precision of the detection process are greatly improved; by means of the split type structural design, the matched spline mandrel can be replaced according to output shaft internal splines of different specifications, the adaptation degree is improved, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coaxiality detection of the inner spline of a cycloid motor output shaft, in particular to a coaxiality detection tool for the inner spline and outer circle of a cycloid motor output shaft. Background Art

[0002] A cycloidal motor is a small, low-speed, high-torque hydraulic motor with an internally meshing cycloidal gear. It converts the kinetic energy of a fluid into mechanical energy. Its elliptical gear structure generates linear motion as the output shaft rotates, making it widely used in modern robotics, automotive, aerospace, and other fields. Due to its smooth motion, high precision, and strong reliability, cycloidal motors have become an indispensable precision drive component in modern industry.

[0003] As the output mechanism of a cycloid motor, the output stability of its output shaft directly determines the overall operating efficiency of the motor. The coaxiality between the internal spline and the external diameter of the output shaft is the most crucial parameter determining output stability. Currently, this testing method primarily relies on manual inspection or fixed fixtures, which is not only inefficient and costly, but also lacks accuracy and stability. Utility Model Content

[0004] The technical problem to be solved by the utility model is that: currently, the detection method for the coaxiality between the inner spline and the outer circle of the output shaft mainly adopts manual handheld detection, which not only has low detection efficiency and high cost, but also has low detection accuracy and stability.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a coaxiality inspection tool for the internal spline and external circle of the output shaft of a cycloid motor, comprising a chassis, a lower cover fixed to the upper end of the chassis by bolts, a shell fixed to the upper end of the lower cover by bolts, an upper cover fixed to the upper end of the shell by bolts, a splined spindle for fitting a workpiece is plugged into the interior of the shell and the upper cover, and a dial indicator for measuring the workpiece is installed on one side of the upper surface of the upper cover through a bracket.

[0006] A hemispherical assembly groove is provided at the center position of the upper surface of the lower cover and the center position of the lower surface of the spline spindle. Steel balls are installed inside the hemispherical assembly grooves on the upper surface of the lower cover and the lower surface of the spline spindle.

[0007] An embedded dust ring is installed on the upper surface of the upper cover at the end connected to the spline spindle.

[0008] An upwardly recessed assembly sink hole is provided on the lower surface of the lower cover, and a hexagon socket head screw for fixing the housing and the upper cover is inserted into the assembly sink hole.

[0009] A limiting groove for improving the mounting firmness of the bracket is provided on the outer side of the upper surface of the upper cover.

[0010] A transverse assembly through hole for assembling a dial indicator is opened transversely inside the bracket, and a locking screw hole connected to the transverse assembly through hole is opened on the upper surface of the bracket. The dial indicator is fixed to the transverse assembly through hole by a locking bolt inside the locking screw hole.

[0011] The beneficial effects of the utility model are:

[0012] (1) The utility model provides a coaxiality inspection tool for the inner spline and outer circle of the output shaft of a cycloid motor. The coaxiality inspection tool detects the inner spline of the output shaft by rotating after assembly, which greatly improves the inspection efficiency.

[0013] (2) No need for handheld testing, which greatly improves the stability and accuracy of the testing process;

[0014] (3) Through the split structure design, the spline spindle can be replaced according to the splines in the output shaft of different specifications, thereby improving the adaptability and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 It is a cross-sectional view of the present utility model. DETAILED DESCRIPTION

[0018] 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.

[0019] 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.

[0020] Figure 1 and Figure 2 The shown device is a coaxiality inspection tool for the internal spline and external circle of the output shaft of a cycloid motor, comprising a chassis 1, a lower cover 2 being fixed to the upper end of the chassis 1 with bolts, a shell 3 being fixed to the upper end of the lower cover 2 with bolts, an upper cover 4 being fixed to the upper end of the shell 3 with bolts, a splined spindle 6 for fitting a workpiece 5 being inserted into the shell 3 and the upper cover 4, and a dial indicator 8 for measuring the workpiece 5 being mounted on one side of the upper surface of the upper cover 4 via a bracket 7.

[0021] In order to reduce the rotational friction, a hemispherical assembly groove is opened at the center position of the upper surface of the lower cover 2 and the center position of the lower surface of the spline shaft 6. Steel balls 9 are installed inside the hemispherical assembly grooves on the upper surface of the lower cover 2 and the lower surface of the spline shaft 6.

[0022] In order to improve the sealing performance of the assembly end, an embedded dust ring 10 is installed on the upper surface of the upper cover 4 at the connection end with the spline spindle 6.

[0023] In order to facilitate assembly, an upwardly recessed assembly sink hole is provided on the lower surface of the lower cover 2 , and a hexagon socket head screw 11 for fixing the housing 3 and the upper cover 4 is inserted into the assembly sink hole.

[0024] In order to improve the firmness and stability of the assembly structure, a limiting groove is opened on the outer side of the upper surface of the upper cover 4 to improve the installation firmness of the bracket 7.

[0025] To facilitate assembly, a horizontal assembly through hole for assembling the dial indicator 8 is opened horizontally inside the bracket 7, and a locking screw hole connected to the horizontal assembly through hole is opened on the upper surface of the bracket 7. The dial indicator 8 is fixed to the horizontal assembly through hole by a locking bolt 12 inside the locking screw hole.

[0026] The detection head of the dial indicator 8 passes through the horizontal assembly through hole, and then the locking bolt 12 is rotated to lock and fix the assembly section of the dial indicator 8 from the upper end.

[0027] 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 cycloid motor output shaft internal spline and external circle coaxiality inspection tool, comprising a chassis (1), characterized by: The upper end of the chassis (1) is fixed with a lower cover (2) by bolts, the upper end of the lower cover (2) is fixed with a shell (3), the upper end of the shell (3) is fixed with an upper cover (4), a splined spindle (6) for fitting a workpiece (5) is plugged into the shell (3) and the upper cover, and a dial indicator (8) for measuring the workpiece (5) is installed on one side of the upper surface of the upper cover (4) through a bracket (7).

2. A cycloid motor output shaft internal spline and external circle coaxiality inspection tool according to claim 1, characterized in that: A hemispherical assembly groove is provided at the center position of the upper surface of the lower cover (2) and the center position of the lower surface of the spline spindle (6), and a steel ball (9) is installed inside the hemispherical assembly grooves on the upper surface of the lower cover (2) and the lower surface of the spline spindle (6).

3. A cycloid motor output shaft internal spline and external circle coaxiality inspection tool according to claim 1, characterized in that: An embedded dustproof ring (10) is installed on the upper surface of the upper cover (4) at the end connected to the spline spindle (6).

4. A cycloid motor output shaft internal spline and external circle coaxiality inspection tool according to claim 1, characterized in that: An upwardly recessed assembly sink hole is provided on the lower surface of the lower cover (2), and a hexagonal cylindrical head screw (11) for fixing the housing (3) and the upper cover (4) is inserted into the assembly sink hole.

5. The coaxiality inspection tool for the internal spline and external circle of the cycloid motor output shaft according to claim 1, characterized in that: A limiting groove for improving the installation firmness of the bracket (7) is provided on the outer side of the upper surface of the upper cover (4).

6. A cycloid motor output shaft internal spline and external circle coaxiality inspection tool according to claim 1, characterized in that: A transverse assembly through hole for assembling a dial indicator (8) is transversely opened inside the bracket (7), a locking screw hole connected to the transverse assembly through hole is opened on the upper surface of the bracket (7), and the dial indicator (8) is fixedly assembled with the transverse assembly through hole by a locking bolt (12) inside the locking screw hole.

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