CN104400629A - Bevel gear cylindrical grinding clamp - Google Patents

Bevel gear cylindrical grinding clamp Download PDF

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Publication number
CN104400629A
CN104400629A CN201410517163.7A CN201410517163A CN104400629A CN 104400629 A CN104400629 A CN 104400629A CN 201410517163 A CN201410517163 A CN 201410517163A CN 104400629 A CN104400629 A CN 104400629A
Authority
CN
China
Prior art keywords
mandrel
external splines
bevel gear
collar
tapering
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.)
Pending
Application number
CN201410517163.7A
Other languages
Chinese (zh)
Inventor
徐树存
耿顺官
周爱军
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 PACIFIC OCEAN GEAR TRANSMISSION CO Ltd
Jiangsu Pacific Precision Forging Co Ltd
Original Assignee
JIANGSU PACIFIC OCEAN GEAR TRANSMISSION CO Ltd
Jiangsu Pacific Precision Forging 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 PACIFIC OCEAN GEAR TRANSMISSION CO Ltd, Jiangsu Pacific Precision Forging Co Ltd filed Critical JIANGSU PACIFIC OCEAN GEAR TRANSMISSION CO Ltd
Priority to CN201410517163.7A priority Critical patent/CN104400629A/en
Publication of CN104400629A publication Critical patent/CN104400629A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies

Abstract

The invention discloses a bevel gear cylindrical grinding clamp which comprises a mandrel, a collar, a positioning sleeve, a sliding sleeve, a gasket, a nut and centres, wherein the mandrel is supported by the centres; the left shaft segment of the mandrel is sleeved with the collar which is connected by a key and limited by a retainer ring respectively; a support rod is arranged on the outer wall of the collar; the middle segment of the mandrel is an outer spline shaft segment with a double-taper structure with a left big end and a right small end; the outer spline shaft segment is divided into three sections by tool withdrawal grooves; the left section of the outer spline shaft segment is in clearance fit with the inner hole of the positioning sleeve; the middle section of the outer spline shaft segment is in clearance fit with the inner hole of the sliding sleeve; the right section of the outer spline shaft segment is in clearance fit with the inner spline hole of a workpiece; and the external threads of the right segment of the mandrel are matched with the gasket and the nut to form a locking structure. According to the invention, the workpiece is positioned by the mandrel with the double-taper structure, and the locating basis and the design basis coincide with each other; and grinding is conducted under an axial limiting condition to reduce unnecessary tool setting between processes, so that the grinding quality is improved, the increase of work efficiency is facilitated, and the labor intensity of operators is reduced.

Description

Bevel gear excircle clamp
Technical field
The present invention relates to a kind of mandrel class fixture of metal cutting process, specifically, the present invention relates to a kind of bevel gear excircle clamp.
Background technology
Master driver in agri-vehicle differential mechanism is bevel gear.The architectural feature of bevel gear is that the disk of two joint different-diameters is coaxially stacked, and larger diameter end is provided with cone tooth, and smaller diameter end is shaft part, and axially middle part is provided with internal splined hole.Because bevel gear smaller diameter end cylindrical and differential casing are combined with degree of precision requirement, the industry realizes the fine finishining of bevel gear smaller diameter end cylindrical by grinding usually after the heat treatment.Prior art grinding bevel gear smaller diameter end cylindrical mainly contains two kinds of installation way, and conventional installation way is tooth mould location, and this kind of location structure is very simple, and clamping is quick, can realize highly-efficient processing.But accurately machined positioning datum is cone tooth, and the design basis of bevel gear is internal splined hole, accurately machined positioning datum and design basis inconsistent, there is clamping error, therefore not high with the bevel gear precision of tooth mould location grinding, the supporting requirement of agri-vehicle differential mechanism can not be met.Deficiency is on the other hand that tooth model volume is large, and Heavy Weight, operative employee's frequent handling labor intensity is large.The technical scheme of also useful spline mandrel positioning accurate machining of bevel gears in the industry, the type fixture has accomplished that machining benchmark is consistent with design basis.; bevel gear after heat treatment all residual thermal deformations of formed machining; the smaller diameter end internal splined hole distortion being particularly positioned at wall thickness relatively thin is the most complicated; the spline mandrel of prior art single size is difficult to the location fit requirement meeting all bevel gears to be ground, can only do radial location with spline flank.Because such spline mandrel lacks axial location, accurately can not control axial length during grinding, the frequent tool setting of inter process must reduce production efficiency, also there is potential safety hazard simultaneously.
Summary of the invention
The present invention is mainly for the deficiencies in the prior art, propose a kind of on same spline mandrel stepping the fixture of location structure is set, this clamp structure is simple, strong adaptability, loads and unloads light, the radial and axial bevel gear excircle clamp that can accurately locate, the fixture of this structure has accomplished that fine finishining positioning datum overlaps with design basis, there is no position error, be conducive to the grinding accuracy improving bevel gear excircle, alleviate the labour intensity of operator simultaneously yet.
The present invention is achieved through the following technical solutions technical goal.
Bevel gear excircle clamp, it is by mandrel, collar, positioning sleeve, sliding sleeve, packing ring, nut and toply form.Described mandrel two ends are provided with centre bore, are positioned at the top common supporting mandrel of left and right end, and the collar being sleeved on the left shaft part of mandrel connects and back-up ring axial limiting with key respectively, and collar outer wall is provided with a radially-protruding pole.Its improvements are: described mandrel stage casing is external splines shaft part, this external splines shaft part cylindrical is provided with the tapering of 1:2000 ~ 1:3000, transverse tooth thickness is provided with the tapering of 1:1000 ~ 1:2000, the large end of tapering is on a left side, small end is on the right side, stage casing external splines shaft part is separated into three joints by escape, the endoporus matched in clearance of left joint external splines shaft part and positioning sleeve, positioning sleeve is by the shoulder axial limiting of mandrel, the endoporus matched in clearance of middle joint external splines shaft part and sliding sleeve, be positioned at right joint external splines shaft part and the workpiece internal splined hole matched in clearance of small end conicity, the external screw thread of mandrel right axis section and packing ring and nut screw connection form axial adjustable locking mechanism.
As further improvement project, the faying face of described packing ring and nut is sphere.
As further improvement project, the cylindrical of described mandrel stage casing external splines is provided with 1:2400 ~ 1:2600 tapering, and transverse tooth thickness is provided with the tapering of 1:1400 ~ 1:1600.
The present invention compared with prior art, has following good effect:
1, the external splines being positioned at mandrel stage casing is double tapered structure, transverse tooth thickness has tapering to meet workpiece radial location condition, cylindrical has tapering for workpiece axial location, because of accurate positioning after trade union college, reduce the tool setting that inter process is unnecessary, both be conducive to improving grinding quality, and be also conducive to improving work efficiency, eliminate safe hidden trouble;
2, can classify according to workpiece internal splined hole deflection, coordinate with the external splines of mandrel stage casing merogenesis selectively and locate, do not need the mandrel being equipped with different tolerance, directly save manufacturing cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, and the trade union college in figure is on the right joint external splines shaft part of mandrel stage casing.
Fig. 2 is another embodiment of the present invention schematic diagram, and the trade union college in figure saves on external splines shaft part in mandrel stage casing.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
Bevel gear excircle clamp shown in Fig. 1, it is made up of mandrel 1, collar 2, positioning sleeve 3, sliding sleeve 4, packing ring 5, nut 6 and top 7.Described mandrel 1 is the main component of this fixture, and mandrel 1 two ends of elongated rod-shaped are provided with centre bore, and the top 7 common supporting mandrels 1 being positioned at two ends, left and right rotate.The collar 2 being sleeved on the left shaft part of mandrel 1 connects and back-up ring 1.1 axial limiting with key respectively, and collar 2 outer wall is provided with a radially-protruding pole 2.1, and the mandrel 1 that pole 2.1 introduces power drive connected from supporting grinding machine spindle rotates.The present invention is accurately located on the external splines shaft part of mandrel 1 stage casing to allow workpiece, and the external splines shaft part of employing is double tapered structure.The external splines shaft part cylindrical in middle mandrel 1 stage casing embodiment illustrated in fig. 1 is provided with 1:2500 tapering, and transverse tooth thickness is provided with the tapering of 1:1500, and the large end of tapering is on a left side, and stage casing external splines on the right side, and is separated into three joints with escape by small end.The endoporus matched in clearance of left joint external splines shaft part wherein 1.2 and positioning sleeve 3, positioning sleeve 3 is by the shoulder axial limiting of mandrel 1, and because positioning sleeve 3 left end obtains axial location, making follow-up cover install to sliding sleeve 4 on mandrel 1 and workpiece has a stable dependence.In actual production process, because of workpiece not etc., during heat treatment, the distortion of workpiece internal splined hole is irregular, is divided into two classes by deflection size.The class trade union college that shown in Fig. 1, distortion is large is on mandrel 1 right joint external splines shaft part 1.4, and between workpiece and positioning sleeve 3, then useful sliding sleeve 4 is separated by.For the ease of handling, therefore require to save male splined shaft 1.3 matched in clearance in the endoporus of sliding sleeve 4 and mandrel 1 stage casing.The little class workpiece of distortion shown in Fig. 2 is then arranged in mandrel 1 and saves on external splines shaft part 1.3, and sliding sleeve 4 changes and is set on mandrel 1 stage casing right joint external splines shaft part 1.4.After trade union college puts in place, on the external screw thread of mandrel 1 right axis section, fitting gasket 5 and nut 6 lock workpiece.In order to reduce the position error of workpiece, packing ring 5 and nut 6 faying face are sphere.Mandrel 1 stage casing of the present invention external splines is double tapered structure, wherein transverse tooth thickness is provided with tapering and can meets workpiece radial location condition, cylindrical is provided with tapering for workpiece axial location, and this structure the most important thing is that positioning datum is consistent with design basis, eliminates Datum transfer.Because of accurate positioning after trade union college, reduce the measurement that inter process is unnecessary, can grinding quality be improved thus, also be beneficial to raising work efficiency.On the other hand, by the classification of workpiece internal splined hole deflection, coordinate with the external splines of mandrel 1 stage casing merogenesis selectively and locate, do not need the mandrel 1 being equipped with different tolerance, directly save manufacturing cost.Another benefit is that mandrel 1 is gently more a lot of than the tooth mould of same specification, greatly alleviates the labour intensity of operative employee in production process.

Claims (3)

1. a bevel gear excircle clamp, it is made up of mandrel (1), collar (2), positioning sleeve (3), sliding sleeve (4), packing ring (5), nut (6) and top (7), described mandrel (1) two ends are provided with centre bore, be positioned at top (7) common supporting mandrel (1) of left and right end, the collar (2) being sleeved on mandrel (1) left shaft part connects and back-up ring (1.1) axial limiting with key respectively, and collar (2) outer wall is provided with a radially-protruding pole (2.1), it is characterized in that: described mandrel (1) stage casing is external splines shaft part, this external splines shaft part cylindrical is provided with the tapering of 1:2000 ~ 1:3000, transverse tooth thickness is provided with the tapering of 1:1000 ~ 1:2000, the large end of tapering is on a left side, small end is on the right side, stage casing external splines shaft part is separated into three joints by escape, the endoporus matched in clearance of left joint external splines shaft part (1.2) and positioning sleeve (3), positioning sleeve (3) is by the shoulder axial limiting of mandrel (1), the endoporus matched in clearance of middle joint external splines shaft part (1.3) and sliding sleeve (4), be positioned at the right joint external splines shaft part (1.4) of small end conicity, with workpiece internal splined hole matched in clearance, the external screw thread of mandrel (1) right axis section coordinates with packing ring (5) and nut (6) and forms axial adjustable locking mechanism.
2. bevel gear excircle clamp according to claim 1, is characterized in that: the faying face of described packing ring (5) and nut (6) is sphere.
3. bevel gear excircle clamp according to claim 1, is characterized in that: the cylindrical of described mandrel (1) stage casing external splines is provided with 1:2400 ~ 1:2600 tapering, and transverse tooth thickness is provided with the tapering of 1:1400 ~ 1:1600.
CN201410517163.7A 2014-09-30 2014-09-30 Bevel gear cylindrical grinding clamp Pending CN104400629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410517163.7A CN104400629A (en) 2014-09-30 2014-09-30 Bevel gear cylindrical grinding clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410517163.7A CN104400629A (en) 2014-09-30 2014-09-30 Bevel gear cylindrical grinding clamp

Publications (1)

Publication Number Publication Date
CN104400629A true CN104400629A (en) 2015-03-11

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Family Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110281091A (en) * 2019-06-20 2019-09-27 安徽省潜山县信兴刷业有限公司 It is a kind of for making the making apparatus and method of polishing wheel
CN110681928A (en) * 2019-08-30 2020-01-14 中国航发动力股份有限公司 Part grinding quick-change clamp and grinding method
CN111421465A (en) * 2020-04-16 2020-07-17 南京信息职业技术学院 Special-shaped part clamp
CN111906688A (en) * 2019-12-20 2020-11-10 中国航发长春控制科技有限公司 Taper grouping mandrel with axial positioning device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323639C2 (en) * 1993-07-15 1997-08-14 Gerhard Dipl Ing Koennemann Grinding machine with a grinding wheel
CN204108826U (en) * 2014-09-30 2015-01-21 江苏太平洋精锻科技股份有限公司 Coaxial stepping location grinding bevel gear excircle fixture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323639C2 (en) * 1993-07-15 1997-08-14 Gerhard Dipl Ing Koennemann Grinding machine with a grinding wheel
CN204108826U (en) * 2014-09-30 2015-01-21 江苏太平洋精锻科技股份有限公司 Coaxial stepping location grinding bevel gear excircle fixture

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
张恩发: "螺伞齿轮加工精度的提高", 《烟台职业学院学报》, no. 02, 30 June 2006 (2006-06-30), pages 52 - 56 *
赵喜生: "磨锥齿轮端面外圆夹具", 《机械工人.冷加工》, no. 05, 15 March 1990 (1990-03-15), pages 26 - 27 *
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110281091A (en) * 2019-06-20 2019-09-27 安徽省潜山县信兴刷业有限公司 It is a kind of for making the making apparatus and method of polishing wheel
CN110681928A (en) * 2019-08-30 2020-01-14 中国航发动力股份有限公司 Part grinding quick-change clamp and grinding method
CN111906688A (en) * 2019-12-20 2020-11-10 中国航发长春控制科技有限公司 Taper grouping mandrel with axial positioning device
CN111421465A (en) * 2020-04-16 2020-07-17 南京信息职业技术学院 Special-shaped part clamp

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Application publication date: 20150311