Gear plate inner addendum circle detection tool

By designing a tooling fixture for detecting the tip circle of the gear teeth, using a tooling table, a detection slide, and a semi-circular detection plate, combined with elastic components and a high-precision detector, the problem of large size and complex operation of existing detection devices is solved, and rapid and high-precision detection of the tip circle of the gear teeth is achieved.

CN224169772UActive Publication Date: 2026-04-28PUSIXIN (HANGZHOU) MASCH PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PUSIXIN (HANGZHOU) MASCH PARTS CO LTD
Filing Date
2025-05-29
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing gear internal tooth tip circle detection devices are large in size and complex to operate, making it difficult to meet the needs of rapid and online detection, and their accuracy and repeatability are difficult to guarantee.

Method used

A fixture for detecting the tip circle of the internal gear teeth was designed, including a fixture table, a detection slide, a slide drive assembly, and a semi-circular detection plate. Combined with an elastic component and a high-precision detector, it enables rapid and high-precision detection of the tip circle of the internal gear teeth.

Benefits of technology

It enables efficient and accurate detection of the tip circle of gear teeth, reducing detection costs and operational difficulties, and is suitable for the rapid detection needs in the mechanical manufacturing field.

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Abstract

The utility model discloses a gear plate internal addendum circle detection tool which comprises an addendum circle detection assembly and a reading and displaying assembly. According to the utility model, the tool table, the detection sliding table, the sliding table driving assembly and the two semicircular detection plates are arranged. The detection sliding table is slidably connected to the tool table and can be pushed by the sliding table driving assembly to move. The two semicircular detection plates are installed on the tool table and the detection sliding table respectively. Meanwhile, an elastic assembly is arranged between the inner end of the detection sliding table and the tool table, when the sliding table driving assembly relieves the thrust applied to the detection sliding table, the detection sliding table can be pushed to move towards one side of the reading and displaying assembly, and the data of the inner addendum circle of the gear plate can be measured in cooperation with the reading and displaying assembly; according to the gear plate inner addendum circle detection device, a worker can rapidly complete detection of the inner addendum circle of the detected gear plate, high efficiency and high precision of detection are achieved, detection cost and operation difficulty are reduced, and the gear plate inner addendum circle detection device has wide application value and market prospects in the field of machine manufacturing.
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Description

Technical Field

[0001] This utility model belongs to the field of gear technology, specifically relating to a tooling for detecting the tip circle of the internal teeth of a gear plate. Background Technology

[0002] Gears play a vital role in mechanical transmission, and the accuracy of their internal tooth tip circle directly affects the meshing quality and transmission efficiency. To ensure the machining quality of gears, the internal tooth tip circle must be rigorously inspected.

[0003] Currently, the inspection of the internal tooth tip circle of gears is usually carried out using measuring tools or specialized testing equipment, but these methods have limitations in terms of accuracy and efficiency. For example, manual measuring tools are easily affected by human factors, making it difficult to guarantee the repeatability and stability of the inspection; while specialized testing equipment, although highly accurate, is expensive and complex to operate, which is not conducive to its widespread use in production sites.

[0004] In addition, existing testing equipment is large in size and complex to operate, making it difficult to meet the needs of rapid testing and online testing on the production site. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a gear plate internal tooth tip circle detection fixture to solve the technical problems of existing gear plate internal tooth tip circle detection devices being large in size, complex in operation, and difficult to meet the requirements of rapid detection.

[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0007] A tooling for detecting the tip circle of a gear plate includes a tip circle detection component and a display component.

[0008] The tooth tip circle detection assembly includes a tooling table, a detection slide, a slide drive assembly, and two semi-circular detection plates. The detection slide is slidably connected to the tooling table and can move under the push of the slide drive assembly. The two semi-circular detection plates are respectively mounted on the tooling table and the detection slide.

[0009] An elastic component is provided between the inner end of the detection slide and the tooling table, which can push the detection slide towards the reading and display component when the slide drive component releases the thrust applied to the detection slide. The reading and display component is used to measure the distance the detection slide moves when it moves outward.

[0010] Furthermore, the tooling table includes a mounting base plate, a layer plate, and a limiting plate stacked sequentially from bottom to top. A guide rail is provided on the mounting base plate. The detection slide is slidably connected to the mounting base plate via the guide rail. A guide groove is formed at the end of the layer plate to mate with the detection slide. The inner end of the detection slide extends into the guide groove.

[0011] Furthermore, the layer plate has a mounting groove that mates with the elastic component. The elastic component is installed in the mounting groove, and in the initial state, the outer end of the elastic component extends out of the groove opening.

[0012] Furthermore, the elastic component includes a spring and a push rod. The push rod is slidably connected within a mounting groove. The outer end of the push rod can extend out of the groove opening under the push of the spring.

[0013] Furthermore, the detection slide includes an adjusting pad and a sliding base plate. The sliding base plate is mounted on the moving end of the guide rail. The adjusting pad is fixed to the sliding base plate by bolts, and the top surface of the adjusting pad is flush with the top surface of the limiting pad.

[0014] Furthermore, the slide drive assembly includes a drive handle, a handle bracket, and a bracket mounting base. The bracket mounting base is fixed to the mounting base plate by bolts. The bottom end of the handle bracket is rotatably connected to the bracket mounting base and can rotate around the center of the pivot axis under the drive of the handle. A transmission rod connected to the handle bracket is fixed on the detection slide. A movable groove is provided on the handle bracket. The outer end of the transmission rod extends into the movable groove.

[0015] Furthermore, the reading and display component includes a high-precision detector and a display box. The high-precision detector employs a displacement sensor. The display box is used to display the values ​​measured by the displacement sensor.

[0016] Furthermore, the guide rail is a high-precision roller guide rail.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This invention comprises a tooling table, a detection slide, a slide drive assembly, and two semi-circular detection plates. The detection slide is slidably connected to the tooling table and can move under the drive of the slide drive assembly. The two semi-circular detection plates are respectively mounted on the tooling table and the detection slide. An elastic component is provided between the inner end of the detection slide and the tooling table. When the slide drive assembly releases the thrust applied to the detection slide, it pushes the detection slide towards the reading and display assembly, and works with the reading and display assembly to measure the data of the inner tooth tip circle of the gear plate. This allows operators to quickly complete the detection of the inner tooth tip circle of the gear plate, achieving high efficiency and high precision, reducing detection costs and operational difficulty, and has broad application value and market prospects in the field of mechanical manufacturing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the tooling table in this utility model;

[0021] Figure 3 This is a schematic diagram showing the relative positions of the tooling table and the testing slide in this utility model. Figure 1 (Enlarged view of part A in the middle)

[0022] Figure 4 This is a schematic diagram of the structure of the elastic component in this utility model. Figure 2 (Enlarged view of part B in the middle section).

[0023] Reference numerals in the attached drawings: 1. Tooling base; 2. Reading and display assembly; 2-1. High-precision detector; 2-2. Display box; 3. Tooling table; 3-1. Mounting base plate; 3-2. Layer pad; 3-3. Limiting pad; 4. Detection slide; 4-1. Adjusting pad; 4-2. Sliding base plate; 5. Slide drive assembly; 5-1. Drive handle; 5-2. Handle bracket; 5-3. Bracket mounting base; 6. Semi-circular detection plate; 7. Elastic component; 7-1. Spring; 7-2. Top rod; 8. Guide rail. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1 and 2 As shown, a gear plate internal tooth tip circle detection fixture includes a fixture base 1, and a tooth tip circle detection assembly and a reading display assembly 2 mounted on the fixture base 1. The tooth tip circle detection assembly includes a fixture table 3, a detection slide 4, a slide drive assembly 5, and two semi-circular detection plates 6. The fixture table 3 is fixed to the fixture base 1 by bolts. The detection slide 4 is slidably connected to the fixture table 3 and can move towards the worktable side under the push of the slide drive assembly 5.

[0027] An elastic component 7 is provided between the inner end of the detection slide 4 and the tooling table 3, which is used to push the detection slide 4 toward the reading and display component 2 when the slide drive component 5 releases the thrust applied to the detection slide 4.

[0028] Two semi-circular inspection plates 6 are respectively mounted on the tooling table 3 and the inspection slide 4. During inspection, the inner ring of the gear plate being inspected is wrapped around the two semi-circular inspection plates 6. The inspection slide 4 moves outward under the action of the elastic component 7. The semi-circular inspection plates 6 mounted on the inspection slide 4 move outward synchronously until the semi-circular inspection plates 6 abut against the tip circle of the inner tooth of the gear plate being inspected.

[0029] The reading and display component 2 is used to measure the moving distance of the detection slide 4 when it moves outward, thereby obtaining the value of the inner tooth tip circle in the gear plate being detected.

[0030] like Figure 2 As shown, the tooling table 3 includes a mounting base plate 3-1, a layer plate 3-2, and a limiting pad 3-3 stacked sequentially from bottom to top. The mounting base plate 3-1 is equipped with a guide rail 8. The detection slide 4 is slidably connected to the mounting base plate 3-1 via the guide rail 8. The end of the layer plate 3-2 has a guide groove that mates with the detection slide 4. The inner end of the detection slide 4 extends into the guide groove, effectively preventing the detection slide 4 from shifting during sliding.

[0031] Furthermore, such as Figure 3 As shown, the layer plate 3-2 has a mounting groove that mates with the elastic component 7. The elastic component 7 is installed in the mounting groove, and in the initial state, the outer end of the elastic component 7 extends out of the groove opening and pushes the detection slide 4 outward, so that it is spaced apart from the layer plate 3-2 in the initial state.

[0032] Specifically, such as Figure 4 As shown, the elastic component 7 includes a spring 7-1 and a push rod 7-2. The push rod 7-2 is slidably connected within the mounting groove and can extend its outer end out of the groove opening under the push of the spring 7-1. When the push rod 7-2 is subjected to pressure from the detection slide 4, it gradually retracts into the mounting groove, compressing the spring 7-1. When the pressure from the detection slide 4 disappears, the spring 7-1 returns to its original position, pushing the push rod 7-2 outward, thereby causing the detection slide 4 to move outward.

[0033] In this embodiment, the detection slide 4 includes an adjusting pad 4-1 and a sliding base plate 4-2. The sliding base plate 4-2 is mounted on the moving end of the guide rail 8. The adjusting pad 4-1 is fixed to the sliding base plate 4-2 by bolts, and the top surface of the adjusting pad 4-1 is flush with the top surface of the limiting pad 3-3, ensuring that the two semi-circular detection plates 6 are flush when installed on the adjusting pad 4-1 and the limiting pad 3-3.

[0034] In this embodiment, the guide rail 8 is a high-precision roller guide rail 8.

[0035] like Figure 3As shown, the slide drive assembly 5 includes a drive handle 5-1, a handle bracket 5-2, and a bracket mounting base 5-3. The bracket mounting base 5-3 is fixed to the mounting base 3-1 by bolts. The bottom end of the handle bracket 5-2 is rotatably connected to the bracket mounting base 5-3, allowing it to rotate around its axis under the drive of the handle. A transmission rod connected to the handle bracket 5-2 is fixed on the detection slide 4. The handle bracket 5-2 has a movable groove that mates with the transmission rod. The outer end of the transmission rod extends into the movable groove. When the handle bracket 5-2 rotates around its axis, it drives the transmission rod to move horizontally, thereby causing the detection slide 4 to slide.

[0036] like Figure 1 As shown, the reading and display component 2 includes a high-precision detector 2-1 and a display box 2-2. The high-precision detector 2-1 uses a displacement sensor to measure the distance the detection slide 4 moves outward during the detection process. The distance is added to the original dimensions of the two semi-circular detection plates 6 to obtain the dimension of the inner tooth tip circle of the gear plate being detected, which is then displayed on the display box 2-2.

[0037] This embodiment provides a non-essential technical feature: a three-color light is provided on the tooling base 1. When the test of the inner tooth tip circle of the gear plate is completed, the three-color light displays the corresponding color according to the measured value. Green indicates that the test is qualified, and red indicates that the test is unqualified, so that the staff can intuitively observe the test results.

[0038] The working principle of this utility model is as follows:

[0039] The operator applies a pushing force to the drive handle 5-1, which drives the handle bracket 5-2 to rotate around its axis, causing the detection slide 4 to slide horizontally. When the push rod 7-2 is subjected to pressure from the detection slide 4, it will gradually retract into the mounting groove, causing the spring 7-1 to compress. At the same time, the two semi-circular detection plates 6 move closer to each other to their extreme positions.

[0040] Subsequently, the operator places the inner ring of the gear plate to be tested onto the two semi-circular testing plates 6. After the gear plate to be tested is fitted, the thrust applied to the drive handle 5-1 is released. The spring 7-1 returns to its original position and causes the push rod 7-2 to extend outward. The testing slide 4 slides away from the tooling table 3 under the push of the push rod 7-2 until the semi-circular testing plate 6 on the testing slide 4 abuts against the corresponding side of the inner tooth tip circle of the gear plate to be tested.

[0041] The high-precision measuring instrument 2-1 measures the distance that the measuring slide 4 moves outward during the measuring process, and adds the moving distance to the original dimensions of the two semi-circular measuring plates 6 to obtain the dimension of the inner tooth tip circle of the gear plate being measured, which is then displayed on the display box 2-2.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tooling for detecting the tip circle of the internal teeth of a gear plate, characterized in that: Includes a tooth tip circle detection component and a reading display component (2); The tooth tip circle detection assembly includes a tooling table (3), a detection slide (4), a slide drive assembly (5), and two semi-circular detection plates (6); the detection slide (4) is slidably connected to the tooling table (3) and can move under the push of the slide drive assembly (5); the two semi-circular detection plates (6) are respectively installed on the tooling table (3) and the detection slide (4); An elastic component (7) is provided between the inner end of the detection slide (4) and the tooling table (3), which can push the detection slide (4) toward the reading and display component (2) when the slide drive component (5) releases the thrust applied to the detection slide (4); the reading and display component (2) is used to measure the moving distance of the detection slide (4) when it moves outward.

2. The gear plate internal tooth tip circle detection fixture according to claim 1, characterized in that: The tooling table (3) includes a mounting base plate (3-1), a layer plate (3-2), and a limiting plate (3-3) stacked sequentially from bottom to top; a guide rail (8) is provided on the mounting base plate (3-1); the detection slide (4) is slidably connected to the mounting base plate (3-1) through the guide rail (8); a guide groove is provided on the layer plate (3-2) to cooperate with the detection slide (4); the inner end of the detection slide (4) extends into the guide groove.

3. The gear plate internal tooth tip circle detection fixture according to claim 2, characterized in that: The layer plate (3-2) has an installation groove that cooperates with the elastic component (7); the elastic component (7) is installed in the installation groove, and in the initial state, the outer end of the elastic component (7) extends out of the groove opening of the installation groove.

4. The gear plate internal tooth tip circle detection fixture according to claim 3, characterized in that: The elastic component (7) includes a spring (7-1) and a push rod (7-2); the push rod (7-2) is slidably connected in the mounting groove; the outer end of the push rod (7-2) can extend out of the groove opening of the mounting groove under the push of the spring (7-1).

5. The gear plate internal tooth tip circle detection fixture according to claim 2, characterized in that: The detection slide (4) includes an adjusting pad (4-1) and a sliding base plate (4-2); the sliding base plate (4-2) is installed on the moving end of the guide rail (8); the adjusting pad (4-1) is fixed to the sliding base plate (4-2) by bolts, and the top surface of the adjusting pad (4-1) is flush with the top surface of the limiting pad (3-3).

6. The gear plate internal tooth tip circle detection fixture according to claim 2, characterized in that: The slide drive assembly (5) includes a drive handle (5-1), a handle bracket (5-2), and a bracket mounting base (5-3); the bracket mounting base (5-3) is fixed to the mounting base plate (3-1) by bolts; the bottom end of the handle bracket (5-2) is rotatably connected to the bracket mounting base (5-3) and can rotate around the center of the rotating shaft under the drive of the handle; a transmission rod connected to the handle bracket (5-2) is fixed on the detection slide (4); a movable groove is opened on the handle bracket (5-2); the outer end of the transmission rod extends into the movable groove.

7. The gear plate internal tooth tip circle detection fixture according to claim 1, characterized in that: The reading and display component (2) includes a high-precision detector (2-1) and a display box (2-2); the high-precision detector (2-1) uses a displacement sensor; the display box (2-2) is used to display the values ​​measured by the displacement sensor.

8. The gear plate internal tooth tip circle detection fixture according to claim 2, characterized in that: The guide rail (8) is a high-precision roller guide rail (8).