A depth gauge measuring tool for measuring bevel gears mounted on shafts of small electric machines

By designing a depth gauge measuring fixture for mounting bevel gears on small motor shafts, the measurement problem caused by the diversity of holes in the depth gauge device components was solved, enabling accurate measurement of the mounting position of small motor shaft gears and improving production efficiency and product quality.

CN224382367UActive Publication Date: 2026-06-19LUOYANG XINDE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUOYANG XINDE TECH CO LTD
Filing Date
2025-06-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When using existing depth gauges to measure the installation position of bevel gears on the shaft of small motors, the variety of hole types in the device components makes the measurement operation cumbersome and the accuracy difficult to guarantee, affecting production quality and output.

Method used

A depth gauge measuring fixture for measuring bevel gears mounted on small motor shafts was designed. By setting depth gauge positioning holes, probe positioning seats, and contact block holes on the shaft measuring fixture, combined with set screw fixing and data zeroing, the accurate positioning and measurement of the bevel gear position can be achieved.

Benefits of technology

It simplifies measurement operations, improves measurement accuracy, reduces errors in installing bevel gears on small motors, and enhances product quality and output.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224382367U_ABST
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Abstract

The utility model belongs to motor precision measurement technical field discloses a kind of depth gauge measuring tool for small motor shaft installation bevel gear measurement, the tool is the technical scheme of integrated positioning measurement, mainly by axle wheel measuring tool, depth gauge positioning seat, probe rod positioning seat and contact block are constituted: axle wheel measuring tool upper portion is equipped with depth gauge positioning seat, its depth gauge positioning hole is fixed with the instrument seat of depth gauge by positioning top wire;Contact block is built-in in the contact block hole of lower probe rod positioning seat, contact block upper end is connected depth gauge probe rod by screw thread;Contact block lower end is equipped with measuring contact surface;When measuring, after depth gauge zeroing, motor shaft pushes contact block retraction, when the lower end surface of probe rod positioning seat is completely contacted motor end surface, depth gauge directly shows bevel gear installation shaft position deviation value;The tool is realized high stability measurement by rigid conduction structure, simple operation, measurement accuracy reaches ±0.01mm, significantly reduces small motor bevel gear assembly error.
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Description

Technical Field

[0001] This utility model relates to the field of measuring fixtures for bevel gears mounted on motor shafts, specifically to a depth gauge measuring fixture for measuring bevel gears mounted on small motor shafts. Background Technology

[0002] Currently, depth gauges are typically used to measure the depth of components or the contact amount of connectors by measuring the depth of the component holes or the contact amount of the connectors using the depth gauge probe. However, the operation is cumbersome due to the wide variety of component holes used in depth gauges. Furthermore, the positions of the component holes differ between different devices. For example, when measuring the installation position of a bevel gear on a small motor shaft, the required precision is high due to the small size of the motor, and the inability to stably position the depth gauge for measurement makes the measurement difficult. Ordinary technicians often produce significant errors in measuring the installation position of the small motor and bevel gear, affecting production quality and output. Therefore, for these reasons, a depth gauge measuring fixture for measuring the installation position of bevel gears on small motor shafts is proposed. Utility Model Content

[0003] The purpose of this invention is to overcome the challenges posed by the diverse types of holes in the components used in depth gauges. For example, when measuring the small size of a bevel gear mounted on a small motor shaft, the depth gauge often results in significant errors in the measurement of the motor and bevel gear mounting positions by ordinary technicians, affecting normal production. This invention provides a depth measurement fixture for measuring the mounting position of a bevel gear on a motor shaft through a rational design. The depth measurement fixture is configured as a shaft wheel measuring fixture for a small motor. A depth gauge is installed in the pre-drilled depth gauge positioning hole at the upper end of the shaft wheel measuring fixture and fixed by a set screw. The probe is fixed to the probe in the contact block hole of the probe positioning seat via a contact block, thus forming the depth measurement fixture. When measuring the bevel gear position, after the data is zeroed, the motor pushes the contact block through the shaft end of the bevel gear, inserting it into the contact block hole. When the lower end face of the probe positioning seat fully contacts the motor end, the difference between the motor and bevel gear shaft is determined. With simple training, ordinary technicians can conveniently and accurately measure the mounting position of the small motor and bevel gear, reducing errors in the mounting of the bevel gear on the small motor and improving product quality and output.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A depth gauge measuring fixture for measuring bevel gears mounted on a small motor shaft, comprising: a shaft measuring fixture, a depth specifying seat, a depth specifying hole, a probe hole, a positioning screw hole, a probe positioning seat, a contact block hole, a contact block, a probe end hole, a depth gauge, an instrument, an instrument seat, a probe, and a probe connecting end; the upper part of the shaft measuring fixture is configured as a depth specifying seat, and a depth gauge is installed at the upper end of the depth specifying seat; a depth specifying hole is reserved in the upper part of the depth specifying seat, and a positioning screw hole is reserved on one side of the depth specifying hole, with a set screw installed in the positioning screw hole; a probe hole is reserved in the lower part of the depth specifying seat; a probe positioning seat is configured in the lower part of the shaft measuring fixture, and a contact block hole is reserved in the probe positioning seat; a contact block is installed in the contact block hole.

[0005] The lower end of the contact block is set as the contact surface, and the upper end of the contact block is reserved with a probe end hole.

[0006] The depth gauge has an instrument in the middle, an instrument base at the lower end of the instrument, a probe in the instrument base, and a probe connecting end at the lower end of the probe. The depth gauge of the shaft wheel measuring fixture has an instrument base in the depth positioning hole, a probe in the probe hole, and a probe connecting end in the probe end hole. The probe end hole and the probe connecting end are threaded together, and the probe end hole is used to connect the probe.

[0007] Beneficial effects: The depth measurement fixture of this utility model is set as a shaft wheel measurement fixture for a small motor. The depth gauge is installed in the depth specification hole reserved at the upper end of the shaft wheel measurement fixture and fixed by a set screw. The probe rod positioning seat is fixed to the probe rod in the contact block hole by a contact block, thus forming the depth measurement fixture. When measuring the position of the bevel gear, after the data is zeroed, the motor pushes the contact block through the shaft end of the bevel gear and inserts it into the contact block hole. When the lower end face of the probe rod positioning seat fully contacts the motor end, the difference between the motor and the bevel gear shaft is determined. Ordinary technicians can easily and accurately measure the installation position of the small motor and the bevel gear with simple training, which can reduce the error of installing the bevel gear in the small motor and improve the product quality and output. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings:

[0009] Figure 1 This is a schematic diagram of the overall assembly structure;

[0010] Figure 2 This is a schematic diagram of the depth gauge structure;

[0011] Figure 3 yes Figure 1 A schematic diagram of the contact block structure;

[0012] Figure 4 yes Figure 1 Schematic diagram of the combined structure with the depth gauge;

[0013] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure;

[0014] Figure 1 , 2 1. Shaft wheel measuring fixture 2. Depth specification seat 2. Depth specification hole 2-1. Probe hole 2-2. Positioning screw hole 2-3. Probe positioning seat 3. Contact block hole 3-1. Contact block 4. Probe end hole 4-1. Depth gauge 5. Instrument 6. Instrument seat 7. Probe 8. Probe connecting end 8-1. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] The upper part of the shaft wheel measuring fixture 1 is set as a depth measuring seat 2, and a depth gauge 5 is set at the upper end of the depth measuring seat 2. A depth measuring hole 2-1 is reserved in the upper part of the depth measuring seat 2. A positioning set screw hole 2-3 is reserved on one side of the depth measuring hole 2-1, and a set screw is set in the positioning set screw hole 2-3. A probe hole 2-2 is reserved in the lower part of the depth measuring seat 2. The lower part of the shaft wheel measuring fixture 1 is set as a probe positioning seat 3, and a contact block hole 3-1 is reserved in the probe positioning seat 3. A contact block 4 is set in the contact block hole 3-1.

[0017] The lower end of the contact block 4 is set as the contact surface, and the upper end of the contact block 4 is reserved with a probe end hole 4-1.

[0018] A depth gauge 5 has an instrument 6 installed in the middle, an instrument base 7 installed at the lower end of the instrument 6, a probe 8 installed in the instrument base 7, and a probe connecting end 8-1 installed at the lower end of the probe 8; the shaft wheel measuring fixture 1 has an instrument base 7 installed in the depth positioning hole 2-1, a probe 8 installed in the probe hole 2-2, and a probe connecting end 8-1 installed in the probe end hole 4-1. The probe end hole 4-1 and the probe connecting end 8-1 are threaded together, and the probe end hole 4-1 is used to connect the probe 8.

Claims

1. A depth gauge measuring fixture for measuring bevel gears mounted on a small motor shaft, comprising: a shaft measuring fixture (1), a depth specification seat (2), a depth specification hole (2-1), a probe hole (2-2), a positioning set screw hole (2-3), a probe positioning seat (3), a contact block hole (3-1), a contact block (4), a probe end hole (4-1), a depth gauge (5), an instrument (6), an instrument seat (7), a probe (8), and a probe connecting end (8-1); characterized in that: The upper part of the shaft wheel measuring fixture (1) is set as a depth specification seat (2), the upper end of the depth specification seat (2) is set with a depth gauge (5), the upper part of the depth specification seat (2) has a reserved depth specification hole (2-1), the side of the depth specification hole (2-1) has a reserved positioning set screw hole (2-3), and a set screw is set in the positioning set screw hole (2-3); the lower part of the depth specification seat (2) has a reserved probe hole (2-2); the lower part of the shaft wheel measuring fixture (1) is set as a probe positioning seat (3), the probe positioning seat (3) has a reserved contact block hole (3-1); a contact block (4) is set in the contact block hole (3-1).

2. A depth gauge measuring tool for measuring bevel gears for small electric motor shaft mounting according to claim 1, characterized in that: The lower end of the contact block (4) is set as the contact surface, and the upper end of the contact block (4) is reserved with a probe end hole (4-1).

3. A depth gauge measuring tool for measuring bevel gears for small electric motor shaft mounting according to claim 1, characterized in that: A depth gauge (5) is equipped with an instrument (6) in the middle, an instrument base (7) is installed at the lower end of the instrument (6), a probe (8) is installed in the instrument base (7), and a probe connecting end (8-1) is installed at the lower end of the probe (8); an instrument base (7) is installed in the depth positioning hole (2-1) of the shaft wheel measuring fixture (1), a probe (8) is installed in the probe hole (2-2), a probe connecting end (8-1) is installed in the probe end hole (4-1), a thread is provided between the probe end hole (4-1) and the probe connecting end (8-1), and the probe end hole (4-1) is used to connect the probe (8).