CN104279933A - Special detecting tool for tooth thickness of bevel gear - Google Patents
Special detecting tool for tooth thickness of bevel gear Download PDFInfo
- Publication number
- CN104279933A CN104279933A CN201410551758.4A CN201410551758A CN104279933A CN 104279933 A CN104279933 A CN 104279933A CN 201410551758 A CN201410551758 A CN 201410551758A CN 104279933 A CN104279933 A CN 104279933A
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- bevel gear
- tooth
- tool
- face
- tooth thickness
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Abstract
The invention discloses a special detecting tool for the tooth thickness of a bevel gear. The special detecting tool is composed of a meter tool, a tooth disc, a standard bevel gear, a positioning ring, a flat plate and a meter frame. The positioning ring and the meter frame are flat placed on the flat plate, the upper end face and the lower end face of the positioning ring are in parallel with each other, and axial through holes are vertically formed in the centers of the end faces, wherein the diameter of the through holes is larger than that of the small end of the standard bevel gear. The upper end face of the positioning ring supports the standard bevel gear. The tooth disc is a disc open downwards, the upward end face of the tooth disc is a plane, and tooth grooves are evenly distributed in the downward opening edge. The two sides of each tooth groove are planes, and the accumulative error of the tooth distance between every two tooth grooves is smaller than 0.01 mm. In the detecting process, the two side faces of each tooth groove are matched with bevel teeth of the standard bevel gear to be in line contact, and the upper plane of the tooth disc is set to be a zero position through the meter tool. The standard bevel gear is replaced with a bevel gear to be detected at the position, then the upper plane of the tooth disc is measured through the meter tool, if the indicating value of the meter tool is within the zero position, the tooth thickness is qualified, and otherwise, the tooth thickness is unqualified. The special detecting tool is simple in structure, high in detecting efficiency, low in requirement for detecting conditions and particularly suitable for being arranged on a production site.
Description
Technical field
The present invention relates to a kind of cubing measured for mechanical component relative size, specifically, the present invention relates to a kind of for the bevel gear tooth thickness appliance special for detecting in automobile differential.
Background technology
Bevel gear is the primary drive part in automobile differential, and its workmanship directly affects car load matching quality.At present, one's own profession had generally used study on precision forging technology to realize the batch production of differential bevel gear already.Continuous production makes precision forging die produce corresponding wearing and tearing, and the transverse tooth thickness of output forging must have deviation.The change of transverse tooth thickness size, causes differential bevel gear to engage spot size or change in location, the change of sideshake size naturally, and axial reference dimension change, finally causes product interchangeability poor.For this reason, the precision of precision forging die in production run, must be monitored, particularly transverse tooth thickness size.Because the cone gear form shape of bevel gear is complicated, general measuring method can not accurately be measured.Although three-coordinates measuring machine can accomplish the size at accurate measuring tooth thickness and other position, but the three-coordinates measuring machine belonging to exact instrument requires very high to measurement, and detection efficiency is very low, be only suitable for making type inspection in control laboratory, be not suitable for production scene inspection.Differential bevel gear production line lacks necessary cubing, operative employee can not the deviation of Timeliness coverage transverse tooth thickness size, easily causes bulk article to scrap.
Summary of the invention
The object of this invention is to provide the bevel gear tooth thickness appliance special for detecting that a kind of applicable production scene uses, this detection tool structure is simple, easy to operate, measure accurately, detection efficiency is high.
The present invention is achieved through the following technical solutions technical goal.
Bevel gear tooth thickness appliance special for detecting, it forms by showing tool, fluted disc, master bevel gear, centring ring, flat board and dial framework.Described centring ring and the common horizontal of dial framework are on flat board, and the upper and lower both ends of the surface of centring ring are parallel to each other, and end face is provided with the perpendicular axially extending bore put between two parties, and through-hole diameter is greater than master bevel gear end diameter, centring ring upper surface supporting master bevel gear.Its improvements are: described fluted disc is uncovered disk down, end face is upward plane, the uniform teeth groove in uncovered limit down, and teeth groove both sides are plane, total cumulative pitch error between teeth groove is less than 0.01mm, and during detection, teeth groove two sides coordinate with the cone tooth of master bevel gear in linear contact lay.
In said structure, the gullet surface on described fluted disc is provided with PVD coating, and described table tool is dial gauge, also can use clock gauge.
The present invention compared with prior art, has following good effect:
1, plane monitoring-network structure is simple, makes easily;
2, open positioning and mounting structure, work-handling is convenient, and detection efficiency is high, and measuring accuracy is high;
3, Purely mechanical measuring mechanism, requires low to supporting testing environment, is particularly suitable for production scene and uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the groove structure enlarged diagram of fluted disc shown in Fig. 1.
Fig. 3 is the upward view of Fig. 2.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
Bevel gear tooth thickness appliance special for detecting shown in Fig. 1, it forms by showing tool 1, fluted disc 2, master bevel gear 3, centring ring 4, flat board 5 and dial framework 6.Described centring ring 4 and the common horizontal of dial framework 6 are on dull and stereotyped 5, and centring ring about 4 both ends of the surface are parallel to each other, and end face is provided with the perpendicular axially extending bore put between two parties, and through-hole diameter is greater than master bevel gear 3 end diameter, centring ring 4 upper surface supporting master bevel gear 3.Described fluted disc 2 is uncovered disk down, and end face is upward plane, the uniform teeth groove as shown in Figure 2 in uncovered limit down.These teeth groove both sides are plane, and the total cumulative pitch error between teeth groove is less than 0.01mm, and during detection, teeth groove two sides coordinate with the cone tooth of master bevel gear 3 in linear contact lay.In order to improve the wearing quality of fluted disc 2, the present invention is provided with PVD coating on the surface of teeth groove.
When the present invention is used for actual measurement, first to measures the H size of bevel gear to be checked, require that the H size of bevel gear 3 to be checked equals the H size of master bevel gear 3.Bevel gear to be checked in the present embodiment is the bevel gear in Designing Passenger Car Differentials, and this bevel gear H is of a size of 20mm.Respectively the master bevel gear 3 of H allowance above nominal size and lower deviation is placed on centring ring by position shown in Fig. 1 and makes location and installation, then by the upper plane of the table tool 1 measurement standard bevel gear 3 be arranged on dial framework 6, the upper deviation measured and lower deviation two extreme positions are set to zero-bit respectively, interval as zero-bit between two zero-bits, in order to meet the supporting requirement of Designing Passenger Car Differentials, the table tool 1 in the present embodiment is dial gauge.Then remove master bevel gear 3, change the measure-alike bevel gear to be checked of H at same position, the pointer showing tool 1 if detect, in zero-bit interval, is judged to be that tested bevel gear tooth thickness is qualified, otherwise is defective.
The invention belongs to a kind of pure mechanical measurement mechanism, structure is simple, easy and simple to handle, detection efficiency is high, measure accurately, particularly require low to testing conditions, be adapted at production scene configuration, be conducive to detecting in production line, can Timeliness coverage mass deviation, batch can be reduced and scrap the economic loss brought.
Claims (3)
1. a bevel gear tooth thickness appliance special for detecting, it forms by showing tool (1), fluted disc (2), master bevel gear (3), centring ring (4), dull and stereotyped (5) and dial framework (6); Described centring ring (4) and the common horizontal of dial framework (6) are on dull and stereotyped (5), centring ring (4) up and down both ends of the surface is parallel to each other, end face is provided with the perpendicular axially extending bore put between two parties, and through-hole diameter is greater than master bevel gear (3) end diameter, centring ring (4) upper surface supporting master bevel gear (3); It is characterized in that: described fluted disc (2) is uncovered disk down, end face is upward plane, the uniform teeth groove in uncovered limit down, teeth groove both sides are plane, total cumulative pitch error between teeth groove is less than 0.01mm, and during detection, teeth groove two sides coordinate with the cone tooth of master bevel gear (3) in linear contact lay.
2. bevel gear tooth thickness appliance special for detecting according to claim 1, is characterized in that: the gullet surface on described fluted disc (2) is provided with PVD coating.
3. bevel gear tooth thickness appliance special for detecting according to claim 1, is characterized in that: described table tool (1) is dial gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551758.4A CN104279933A (en) | 2014-10-17 | 2014-10-17 | Special detecting tool for tooth thickness of bevel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551758.4A CN104279933A (en) | 2014-10-17 | 2014-10-17 | Special detecting tool for tooth thickness of bevel gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104279933A true CN104279933A (en) | 2015-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410551758.4A Pending CN104279933A (en) | 2014-10-17 | 2014-10-17 | Special detecting tool for tooth thickness of bevel gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN104279933A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300349A (en) * | 2017-08-09 | 2017-10-27 | 海盐猛凌汽车配件有限公司 | A kind of non-tooth segment length measurement cubing component of gearhead and its measuring method |
| CN112747656A (en) * | 2021-01-28 | 2021-05-04 | 重庆精玖机械科技有限公司 | Utensil is examined in bevel gear forging tooth thickness on-line measuring |
| CN113532239A (en) * | 2021-06-29 | 2021-10-22 | 方盛车桥(合肥)有限公司 | Tooth side clearance measuring equipment |
| CN114061401A (en) * | 2021-11-23 | 2022-02-18 | 西安陕鼓动力股份有限公司 | Method for detecting tooth height of straight tooth end face |
-
2014
- 2014-10-17 CN CN201410551758.4A patent/CN104279933A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300349A (en) * | 2017-08-09 | 2017-10-27 | 海盐猛凌汽车配件有限公司 | A kind of non-tooth segment length measurement cubing component of gearhead and its measuring method |
| CN112747656A (en) * | 2021-01-28 | 2021-05-04 | 重庆精玖机械科技有限公司 | Utensil is examined in bevel gear forging tooth thickness on-line measuring |
| CN113532239A (en) * | 2021-06-29 | 2021-10-22 | 方盛车桥(合肥)有限公司 | Tooth side clearance measuring equipment |
| CN114061401A (en) * | 2021-11-23 | 2022-02-18 | 西安陕鼓动力股份有限公司 | Method for detecting tooth height of straight tooth end face |
| CN114061401B (en) * | 2021-11-23 | 2024-02-06 | 西安陕鼓动力股份有限公司 | Method for detecting tooth height of straight tooth end face |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150114 |