CN223671025U - A precision measuring fixture for disc gear teeth - Google Patents
A precision measuring fixture for disc gear teethInfo
- Publication number
- CN223671025U CN223671025U CN202423195652.3U CN202423195652U CN223671025U CN 223671025 U CN223671025 U CN 223671025U CN 202423195652 U CN202423195652 U CN 202423195652U CN 223671025 U CN223671025 U CN 223671025U
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- China
- Prior art keywords
- base
- tooth
- tightening device
- screw tightening
- clamping
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
本实用新型提供了一种盘齿轮齿部精测装夹工装，解决了现有装夹方式需要以内缘为定位基准，导致齿部精测时无法再以内缘为轴颈参考，且卡盘工装通常繁重，不易拆卸和搬运；或者是需要人工使用千分表进行粗找正，手动检测装夹偏心，再用橡胶锤敲正的方式消除偏心，导致测量效率和生产效率低下的问题；具体包括底座、螺旋拧紧器、圆形平台、滑块；底座套设在齿测中心下顶尖上，螺旋拧紧器套设在底座一端，与底座旋转连接；圆形平台沿径向开设有三条滑轨，每条滑轨安装一个滑块，每个滑块的两侧设有滑槽，底部设有下螺旋齿；滑块通过滑槽与滑轨滑动连接，通过下螺旋齿与螺旋拧紧器上设置的上螺旋齿啮合连接。
This utility model provides a clamping fixture for precise measurement of disc gear teeth, solving the problems of existing clamping methods that require the inner edge as the positioning reference, making it impossible to use the inner edge as the journal reference during precise tooth measurement; and the fact that chuck fixtures are usually heavy and difficult to disassemble and transport; or that manual coarse alignment is required using a dial indicator, manually checking for clamping eccentricity, and then eliminating eccentricity by tapping with a rubber hammer, resulting in low measurement and production efficiency. Specifically, it includes a base, a screw tightener, a circular platform, and a slider; the base is sleeved on the lower center of the tooth measurement center, and the screw tightener is sleeved on one end of the base and rotatably connected to the base; the circular platform has three slide rails along the radial direction, each slide rail is equipped with a slider, each slider has a slide groove on both sides and a lower helical tooth on the bottom; the slider is slidably connected to the slide rail through the slide groove, and is engaged with the upper helical tooth on the screw tightener through the lower helical tooth.
Description
Technical Field
The utility model relates to a gear detection clamping tool, in particular to a disc gear tooth part precise detection clamping tool.
Background
In the gear production and processing process, in order to ensure the precision of the gear and each parameter to meet the standard, the gear needs to be measured. The method is characterized in that a part of shaft teeth are directly positioned and measured by using a tooth center, and for detection of the disk gear, a clamping mode comprises a chuck and an equal-height block, wherein the inner edge of a chuck tool is used as a positioning reference, the inner edge of the chuck tool cannot be used as a shaft neck for reference when the tooth part is refined, the chuck tool is usually heavy and is not easy to disassemble and carry, the equal-height block tool needs to manually use a dial indicator for rough alignment, clamping eccentricity is manually detected, and the eccentricity is eliminated by using a rubber hammer for knocking, so that the measurement efficiency of the disk gear is limited, and the production efficiency is reduced.
The invention provides a clamping structure based on a gear measuring machine, which comprises a mounting base, a machine shell, an adjustable side measuring frame structure, an adjustable collecting frame structure, a longitudinal cylinder, a conveniently-detached connecting frame structure, an upper side measurer, a movable frame, a telescopic cylinder, a transverse plate, a rotating motor, a conveniently-detached storage frame structure, a tool box, a transverse sliding rail and a protection plate, wherein the clamping structure can be used for measuring a plurality of disk gears with different sizes each time, but is complex in structure, can only be used for measuring a plurality of disk gears with fixed sizes, and is low in applicability.
Disclosure of Invention
The utility model aims to solve the technical problems that the inner edge is required to be used as a positioning reference in the existing clamping mode, the inner edge cannot be used as a shaft neck reference when the tooth is refined, the chuck tool is heavy and is not easy to detach and carry, or the manual correction is required to be performed by using a dial indicator, the clamping eccentricity is detected manually, the eccentricity is eliminated in a rubber hammer knocking mode, and the measuring efficiency and the production efficiency are low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The precise detection clamping tool for the gear tooth parts of the disk is characterized by comprising a base, a screw tightening device, a circular platform and a sliding block;
The circular platform is arranged at the upper end of the base, the middle parts of the base and the circular platform are provided with assembly holes penetrating up and down, and the upper ends of the assembly holes are used for being matched with the tooth center measuring lower center;
The side wall of the lower end of the base is provided with a threaded hole, and a positioning fixing pin is arranged in the threaded hole and is used for being fixedly connected with a tooth center measuring workpiece table so as to prevent the base and a tooth center measuring lower center from rotating relatively;
The screw tightening device is of a circular ring structure, is sleeved on the base and is in rotary connection with the base, and the upper surface of the screw tightening device is provided with upper screw teeth;
At least three slide ways are uniformly arranged at the upper end of the circular platform along the radial direction, each slide way is internally provided with a slide block, the shape and the size of each slide block are the same, the lower end surface of each slide block is provided with a lower spiral tooth, and the lower spiral teeth are meshed with the upper spiral teeth;
The inner side of each sliding block is provided with at least two clamping surfaces from inside to outside, the outer side of each sliding block is provided with at least one outer supporting surface for clamping the outer edges of different gears to be tested, the outer supporting surfaces are used for supporting the inner edges of the gears to be tested, each clamping surface is an inward-bending arc surface, the upper surface of the clamping surface positioned at the inner side is lower than the upper surface of the clamping surface positioned at the outer side, the outer supporting surfaces are outward-bending arc surfaces, and the initial position of each sliding block in a slideway is equal to the distance between the circle center of the circular platform.
Further, the size of the assembling hole meets the condition that when the base is sleeved on the tooth center lower center through the assembling hole, the gap between the wall of the assembling hole and the outer surface of the tooth center lower center is smaller than 0.03mm.
Further, an anti-slip groove is carved on the outer side surface of the screw tightening device to form an anti-slip surface.
Further, the screw tightening device further comprises two tightening support rods, at least two tightening jacks are uniformly formed in the outer side face of the screw tightening device along the circumferential direction, and the tightening jacks are used for inserting the tightening support rods into the tightening jacks to tighten or loosen the screw tightening device.
Further, the clamping surface of the sliding block is provided with a horizontal groove for increasing friction force when the gear to be tested is clamped.
Further, the rotary connection part of the base and the screw tightening device is of a necking structure, so that the stability and the radial width of the connection of the screw tightening device are improved, more guide rails are convenient to set, the application range of the tool is increased, and the sliding block can slide more stably.
Further, the height of the outer supporting surface meets the following condition that the height of the outer supporting surface is not more than half of the height of the inner edge of the gear to be measured, and the inner edge of the gear to be measured can be continuously used as a journal reference in the measuring process.
Further, the screw-on outer diameter is slightly larger than the outer diameter of the circular platform.
The utility model has the beneficial effects that:
1. The utility model discloses a precise detection clamping tool for a gear tooth part of a disk gear, which saves the procedures of manually using a dial indicator to perform rough alignment, manually detecting clamping eccentricity and eliminating the eccentricity in a rubber hammer knocking mode during the detection of partial disk gears at the current stage, and conveniently and rapidly realizes the purpose of rapidly eliminating the eccentricity during the measurement of the disk gears.
2. The clamping tool for precisely measuring the gear tooth parts of the disk gears shortens the detection preparation time of the disk gears and improves the precise measurement efficiency of the disk gears.
3. The clamping tool for precisely measuring the gear tooth parts of the disk is strong in applicability, simple to operate and convenient to clamp, and reduces the labor intensity of operators.
4. The utility model relates to a disc gear tooth part precise measurement clamping tool, which is characterized in that three sliding blocks realize two positioning clamping modes of a clamping outer edge and an expanding inner edge, and can be used for measuring various gear workpieces, including but not limited to spline shaft, disc gear and shaft gear measurement, the measurement process is stable and reliable, and the workpiece sliding risk is avoided.
5. The positioning and clamping mode of the expanding inner edge in the disc gear tooth part precise measurement clamping tool disclosed by the utility model has the advantages of low occupancy rate on the inner edge and no influence on the use of the inner edge as a journal reference in the measurement process.
Drawings
FIG. 1 is a partial cross-sectional view of an embodiment of a disc gear tooth precise measurement clamping tool of the present utility model;
FIG. 2 is a top view of an embodiment of the present utility model (slider not shown);
FIG. 3 is a schematic view of a slider according to an embodiment of the present utility model.
Reference numerals:
The device comprises a base, an assembly hole, a positioning fixing pin, a screw tightening device, an upper screw tooth, a tightening jack, a round platform, a slider, a lower screw tooth and a slide rail, wherein the base is 1-, the assembly hole is 11-, the positioning fixing pin is 12-, the screw tightening device is 2-, the screw tightening jack is 21-and the screw tightening jack is 22-and the slide rail is 5-.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and examples, and it is apparent that the described examples are only some but not all examples of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a disc gear tooth part precise measurement clamping tool, which is shown in figures 1-3 and comprises a base 1, a screw tightening device 2, a circular platform 3 and a sliding block 4;
The circular platform 3 is arranged at the upper end of the base 1, the middle parts of the base 1 and the circular platform 3 are provided with assembly holes 11 penetrating up and down, the upper ends of the assembly holes 11 are used for being matched with the tooth center measuring lower center, and when the base 1 is sleeved on the tooth center measuring lower center through the assembly holes 11, the gap between the wall of the assembly holes 11 and the outer surface of the tooth center measuring lower center is smaller than 0.03mm.
The lower extreme lateral wall of base 1 is provided with the screw hole, installs location fixed pin 12 in it for with tooth center of survey work piece platform fixed connection, prevent that base 1 and tooth center of survey lower top from taking place relative rotation.
The screw tightening device 2 is of a circular ring structure, is sleeved on the base 1 and is in rotary connection with the base 1, an upper screw tooth 21 is arranged on the upper surface of the screw tightening device, the screw pitches of the upper screw tooth 21 are equal, the upper surface of the screw tightening device 2 is in clearance fit with the lower surface of the circular platform 3, and the outer diameter of the screw tightening device 2 is slightly larger than the outer diameter of the circular platform 3. The outer side surface of the screw tightening device 2 is provided with grooves with equal distances, similar depths and uniform intervals to form an anti-skid surface, and three tightening jacks 22 are arranged on the outer side surface of the screw tightening device 2 along the circumferential direction, so that when an operator cannot screw the screw tightening device 2 by hand, a tightening support rod can be inserted into the tightening jacks 22 to further tighten or loosen the screw tightening device 2.
Three slide ways 5 are uniformly arranged at the upper end of the circular platform 3 along the radial direction, the included angle between every two adjacent slide ways 5 is 120 degrees, a sliding block 4 is arranged in each slide way 5, a lower spiral tooth 41 is arranged on the lower end surface of the sliding block, the lower spiral tooth 41 is meshed with the upper spiral tooth 21, spiral transmission is realized, and the three sliding blocks 4 can synchronously slide along the radial direction of the circular platform 3 on the sliding rail 5.
The inner side of each sliding block 4 is provided with two clamping surfaces from inside to outside, the outer side is provided with an outer supporting surface, the two clamping surfaces are all inwards bent arc surfaces, the upper surface of the clamping surface positioned at the inner side is lower than the upper surface of the clamping surface positioned at the outer side and used for clamping the outer edges of different gears to be tested, the clamping surface is provided with a horizontal groove for increasing the friction force when the gears to be tested are clamped, the outer supporting surface is an outwards bent arc surface and used for supporting the inner edges of the gears to be tested outwards, and the height of the outer supporting surface meets the following conditions that the height of the outer supporting surface is not greater than half of the height of the inner edges of the gears to be tested, and the inner edges of the gears to be tested can be continuously used as journal references in the measurement process.
The initial position of each sliding block 4 in the slideway is equal to the distance between the circle center of the circular platform 3, and when the spiral screwing device 2 is rotated, the three sliding blocks 4 can synchronously slide on the slideway 5 along the radial direction of the circular platform 3, so that the disc gear to be tested is ensured not to be eccentric when being clamped or internally supported.
The rotary joint of the base 1 and the screw tightening device 2 is of a necking structure, so that the stability and radial width of the screw tightening device 2 are improved, more guide rails are convenient to set, the application range of the tool is increased, and the sliding block can slide more stably.
When the utility model is used, the clean and tidy working table surface of the tooth measuring center is ensured, then the base 1 is sleeved on the lower center of the tooth measuring center, the base is gently rotatably installed in the assembly process to avoid colliding with the lower center, and after the base is installed in place, the positioning fixing pin 12 is screwed down to prevent the base 1 and the lower center of the tooth measuring center from rotating relatively in the measurement process. And next, presetting the sliding block 4 to the size and position corresponding to the outer diameter or the inner edge diameter of the workpiece to be tested according to the clamping mode, lightly placing the workpiece to be tested on the sliding block 4, and tightening the screw tightening device 2 for tightening. And after the measurement is finished, unscrewing the screw tightening device 2 to loosen the workpiece to be measured, taking down the workpiece, unscrewing the positioning fixing pin 12, and rotating to take down the clamping tool.
Claims (8)
1. The precise-measurement clamping tool for the gear tooth parts of the disk is characterized by comprising a base (1), a screw tightening device (2), a circular platform (3) and a sliding block (4);
The circular platform (3) is arranged at the upper end of the base (1), the middle parts of the base (1) and the circular platform (3) are provided with assembly holes (11) penetrating up and down, and the upper ends of the assembly holes (11) are used for being matched with the lower center of the tooth center;
The side wall of the lower end of the base (1) is provided with a threaded hole, and a positioning fixing pin (12) is arranged in the threaded hole and is used for being fixedly connected with a tooth center measuring workpiece table;
the screw tightening device (2) is of a circular ring structure, is sleeved on the base (1) and is rotationally connected with the base (1), and an upper screw tooth (21) with equal screw pitch is arranged on the upper surface of the screw tightening device;
At least three slide ways (5) are uniformly arranged at the upper end of the circular platform (3) along the radial direction, one sliding block (4) is arranged in each slide way (5), a lower spiral tooth (41) is arranged on the lower end surface of the sliding block (4), and the lower spiral tooth (41) is meshed with the upper spiral tooth (21);
At least two clamping surfaces are arranged on the inner side of each sliding block (4) from inside to outside, at least one outer supporting surface is arranged on the outer side of each sliding block, each clamping surface is an inward-bending arc surface, the upper surface of the clamping surface positioned on the inner side is lower than the upper surface of the clamping surface positioned on the outer side, each outer supporting surface is an outward-bending arc surface, and the initial position of each sliding block (4) in a slideway is equal to the distance between the circle center of the circular platform (3).
2. The disc gear tooth part precise measurement clamping tool according to claim 1, wherein:
The size of the assembly hole (11) meets the condition that when the base (1) is sleeved on the tooth center measuring lower center through the assembly hole (11), the gap between the wall of the assembly hole (11) and the outer surface of the tooth center measuring lower center is smaller than 0.03mm.
3. The disc gear tooth part precise measurement clamping tool according to claim 1, wherein:
the outer side surface of the screw tightening device (2) is carved with an anti-skid groove to form an anti-skid surface.
4. The disc gear tooth portion precise measurement clamping tool according to claim 3, wherein:
The screw tightening device is characterized by further comprising two tightening support rods, wherein at least two tightening jacks (22) are uniformly formed in the outer side face of the screw tightening device (2) along the circumferential direction, the tightening jacks (22) are used for inserting the tightening support rods into the tightening jacks (22), and the screw tightening device (2) is tightened or loosened.
5. The disc gear tooth part precise measurement clamping tool according to claim 1, wherein:
The clamping surface of the sliding block (4) is provided with a horizontal groove for increasing friction force when the gear to be tested is clamped.
6. The disc gear tooth part precise measurement clamping tool according to claim 1, wherein:
The rotary joint of the base (1) and the screw tightening device (2) is of a necking structure, so that the stability and the radial width of the screw tightening device (2) are increased.
7. The disc gear tooth part precise measurement clamping tool according to claim 1, wherein:
The height of the outer supporting surface meets the following condition that the height of the outer supporting surface is not more than half of the height of the inner edge of the gear to be measured, and the inner edge of the gear to be measured can be continuously used as a journal reference in the measuring process.
8. The disc gear tooth portion precise measurement clamping tool according to any one of claims 1-7, wherein:
The outer diameter of the screw-on device (2) is slightly larger than the outer diameter of the circular platform (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423195652.3U CN223671025U (en) | 2024-12-24 | 2024-12-24 | A precision measuring fixture for disc gear teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423195652.3U CN223671025U (en) | 2024-12-24 | 2024-12-24 | A precision measuring fixture for disc gear teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223671025U true CN223671025U (en) | 2025-12-16 |
Family
ID=97970881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423195652.3U Active CN223671025U (en) | 2024-12-24 | 2024-12-24 | A precision measuring fixture for disc gear teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223671025U (en) |
-
2024
- 2024-12-24 CN CN202423195652.3U patent/CN223671025U/en active Active
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