CN202106299U - Positioning fixture for pitch circle of bearing type bevel gear shaft - Google Patents

Positioning fixture for pitch circle of bearing type bevel gear shaft Download PDF

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Publication number
CN202106299U
CN202106299U CN2011201385056U CN201120138505U CN202106299U CN 202106299 U CN202106299 U CN 202106299U CN 2011201385056 U CN2011201385056 U CN 2011201385056U CN 201120138505 U CN201120138505 U CN 201120138505U CN 202106299 U CN202106299 U CN 202106299U
Authority
CN
China
Prior art keywords
bevel gear
pitch circle
positioning fixture
gear shaft
annular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011201385056U
Other languages
Chinese (zh)
Inventor
唐雪峰
张焰庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU SHANGCHI GROUP CO Ltd
Original Assignee
JIANGSU SHANGCHI GROUP CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU SHANGCHI GROUP CO Ltd filed Critical JIANGSU SHANGCHI GROUP CO Ltd
Priority to CN2011201385056U priority Critical patent/CN202106299U/en
Application granted granted Critical
Publication of CN202106299U publication Critical patent/CN202106299U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a positioning fixture for the pitch circle of a bearing type bevel gear shaft; the positioning fixture comprises a spring, a taper shank, a circular clamping seat with a concave axial cross section and a workpiece guide clamping head which is fixedly arranged on the circular clamping seat and is used for guiding and transferring a workpiece; the circular clamping seat comprises a bottom plate and a circular clamping wall which is fixedly connected with the bottom plate; both surfaces of the bottom plate are respectively the bottom surface and the concave surface of the circular clamping seat; the taper shank is fixedly connected on the bottom surface of the bottom plate; a cavity is arranged between the circular clamping wall and the concave surface; the annular grooves are arranged at the top angle of the circular clamping wall, close to the cavity, along the peripheral direction of the circular clamping wall; three positioning steel balls are arranged in the annular grooves; positioning through holes are arranged on the positioning steel balls; three connecting through holes are also arranged on the annular clamping wall; and the spring passes through the connecting through hole and the positioning through holes so as to locate the positioning steel balls in the annular grooves. The positioning fixture can ensure the concentricity of a processed surface and the pitch circle of a bearing type bevel gear to reach 0.005 to 0.045mm and also can well achieve the effect of stable operation and noise reduction.

Description

Bearing-type bevel gear shaft pitch circle positioning fixture
Technical field
The utility model relates to a kind of frock that is used for the processing of spiral bevel gear, relates in particular to a kind of bearing-type bevel gear shaft pitch circle positioning fixture.
Background technology
The processing of existing spiral bevel gear bearing guard all is to locate the grinding bearing shelves with two centre bores.This grinding method makes the axiality of spiral bevel gear pitch circle and bearing guard have the deviation of 0.04-0.08mm all the time.For a long time, such axiality level has influence on the final noise of bevel gear product always, directly makes the product quality class of bevel gear.Suddenly needing more convenient, rational in infrastructure frock clamp solves this problem.
The utility model content
The utility model technical problem to be solved is the deficiency to above-mentioned existing counting, and a kind of bearing-type bevel gear shaft pitch circle positioning fixture that is applicable to no guide bearing shelves spiral bevel gear axle is provided.This bearing-type bevel gear shaft pitch circle positioning fixture is easy to use, can locate the machining bearing shelves with the bevel gear pitch circle, makes bearing guard and bevel gear pitch circle axiality better, and running noise is lower, more steady.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of bearing-type bevel gear shaft pitch circle positioning fixture comprises that spring, taper shank, axial cross section are the ring-type holder of spill and are fixedly mounted on and are used to lead the workpiece guiding chuck of part of changing a job on the annular holder; The ring-type holder is made up of with the annular double wall that is fixedly connected with base plate base plate; The two sides of base plate is respectively the bottom surface and the concave surface of ring-type holder; Taper shank is fixedly connected on the bottom surface of base plate, is cavity between annular double wall and the concave surface, at annular double wall near the drift angle place of cavity and along the annular groove that is circumferentially with of annular double wall; Be provided with three locking balls in the annular groove, locking ball is provided with positioning through hole; Also be provided with three connecting through holes on the annular double wall; Spring passes connecting through hole and positioning through hole is positioned at locking ball in the annular groove.
As the further improved technical scheme of the utility model, also comprise being used to lead the grinding spindle guiding chuck that changes said ring-type holder.
As the further improved technical scheme of the utility model, said connecting through hole and locking ball all are three.
As the further improved technical scheme of the utility model, the radial section of said annular groove is a cambered surface.
As the further improved technical scheme of the utility model, said cambered surface is 1/4th cambered surfaces.
The utility model adopts low highly for steel ball workpiece is positioned, and the right spring point of positioning ball is in annular groove, so positioning ball can have micro displacement, thereby makes the location of workpiece more accurate.The utility model can guarantee that the axiality of machined surface and bevel gear pitch circle reaches 0.005-0.045mm in a word, also can reach the effect that running is steady, reduce noise better.
Description of drawings
Fig. 1 is the broken section structural representation of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to structural representation.
Fig. 3 is the user mode sketch map of the utility model.
The specific embodiment
Referring to figure, this bearing-type bevel gear shaft pitch circle positioning fixture comprises that spring 1, taper shank 2, axial cross section are the ring-type holder 3 of spill and are fixedly mounted on and are used to lead the workpiece guiding chuck 4 of part 13 of changing a job on the annular holder 3; Ring-type holder 3 is made up of with the annular double wall 6 that is fixedly connected with base plate 5 base plate 5; The two sides of base plate 5 is respectively the bottom surface 3-1 and the concave surface 3-2 of ring-type holder 3; Taper shank 2 is fixedly connected on the bottom surface 3-1 of base plate 5; Between annular double wall 6 and the concave surface 3-2 is cavity 7, annular double wall 6 near the annular double wall 6 in drift angle place and edge of cavity 7 be circumferentially with annular groove 8, the radial section of said annular groove 8 is 1/4th cambered surfaces.Can be provided with at least three locking balls 9 in the annular groove 8 and be provided with positioning through hole 10, locking ball 9 is three in the present embodiment; Also be provided with at least three connecting through holes 11 said connecting through holes 11 near the position of annular groove 8 on the annular double wall 6 and also be three, three connecting through holes 11 be evenly distributed on annular double wall 6 circumferentially; Spring 1 passes connecting through hole 11 and with positioning through hole 10 locking ball 9 is positioned in the annular groove 8.Also comprise and be used to lead the grinding spindle guiding chuck 12 that changes said ring-type holder 3.Locking ball 9 adopts bearing-type pitch circle locking ball.Spring 1 adopts hairspring, can with connecting through hole and positioning through hole is suitable to be as the criterion.Taper shank adopts the 4# Morse taper shank.
The operation principle of the utility model is: taper shank 2 directly connects the grinding machine spindle hole, and being led by grinding spindle guiding chuck 12 changes this bearing-type bevel gear shaft pitch circle positioning fixture, leads the part 13 of changing a job again by workpiece guiding chuck 4; 8 li of the annular grooves that three bearing-type pitch circle locking balls float and are positioned 1/4 sphere with hairspring, three steel balls are roughly divided equally bevel gear shaft are carried out the pitch circle location, set upright the location by active thimble 14 more simultaneously.Promptly can carry out grinding or turning behind the clamping like this to machining area.

Claims (5)

1. bearing-type bevel gear shaft pitch circle positioning fixture comprises that spring (1), taper shank (2), axial cross section are the ring-type holder (3) of spill and are fixedly mounted on and are used to lead the workpiece guiding chuck (4) of part of changing a job on the annular holder (3); It is characterized in that: ring-type holder (3) is made up of with the annular double wall (6) that is fixedly connected with base plate (5) base plate (5); The two sides of base plate (5) is respectively the bottom surface (3-1) and the concave surface (3-2) of ring-type holder (3); Taper shank (2) is fixedly connected on the bottom surface (3-1) of base plate (5); Between annular double wall (6) and the concave surface (3-2) is cavity (7); Annular double wall (6) near the drift angle place of cavity (7) and along annular double wall (6) be circumferentially with annular groove (8), be provided with three locking balls (9) in the annular groove (8), locking ball (9) is provided with positioning through hole (10); Also be provided with at least three connecting through holes (11) on the annular double wall (6); Spring (1) passes connecting through hole (11) and positioning through hole (10) is positioned at locking ball (9) in the annular groove (8).
2. bearing-type bevel gear shaft pitch circle positioning fixture according to claim 1 is characterized in that: also comprise being used to lead the grinding spindle guiding chuck (12) that changes said ring-type holder (3).
3. bearing-type bevel gear shaft pitch circle positioning fixture according to claim 1 and 2 is characterized in that: said connecting through hole (11) and locking ball (9) all are three.
4. bearing-type bevel gear shaft pitch circle positioning fixture according to claim 1 and 2, it is characterized in that: the radial section of said annular groove (8) is a cambered surface.
5. bearing-type bevel gear shaft pitch circle positioning fixture according to claim 4, it is characterized in that: said cambered surface is 1/4th cambered surfaces.
CN2011201385056U 2011-05-04 2011-05-04 Positioning fixture for pitch circle of bearing type bevel gear shaft Expired - Fee Related CN202106299U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201385056U CN202106299U (en) 2011-05-04 2011-05-04 Positioning fixture for pitch circle of bearing type bevel gear shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201385056U CN202106299U (en) 2011-05-04 2011-05-04 Positioning fixture for pitch circle of bearing type bevel gear shaft

Publications (1)

Publication Number Publication Date
CN202106299U true CN202106299U (en) 2012-01-11

Family

ID=45431748

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201385056U Expired - Fee Related CN202106299U (en) 2011-05-04 2011-05-04 Positioning fixture for pitch circle of bearing type bevel gear shaft

Country Status (1)

Country Link
CN (1) CN202106299U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102407457A (en) * 2011-10-31 2012-04-11 江苏竹箦阀业有限公司 Positioning fixture for pitch circle of bevel gear shaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102407457A (en) * 2011-10-31 2012-04-11 江苏竹箦阀业有限公司 Positioning fixture for pitch circle of bevel gear shaft

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120111

Termination date: 20150504

EXPY Termination of patent right or utility model