CN104439501A - Assembled spline broach - Google Patents
Assembled spline broach Download PDFInfo
- Publication number
- CN104439501A CN104439501A CN201410676034.2A CN201410676034A CN104439501A CN 104439501 A CN104439501 A CN 104439501A CN 201410676034 A CN201410676034 A CN 201410676034A CN 104439501 A CN104439501 A CN 104439501A
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- CN
- China
- Prior art keywords
- teeth
- spline
- broach
- broaching tool
- calibration ring
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- 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.)
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses an assembled spline broach which comprises a broach body. Round teeth, chamfered teeth and spline teeth are arranged between a front handle and a guide portion of the broach body and between a rear handle and the guide portion of the broach body in sequence. A calibration ring gas a broach finish broaching tooth is arranged behind spline calibration teeth of the spline teeth, and high-low teeth which are formed by a plurality of sets of splines and round holes and used for sleeking and broaching the surface are arranged on the calibration ring. The calibration ring is assembled on an existing broach body, the calibration ring is arranged behind the spline calibration teeth of the spline teeth, and adopted as the finish broaching tooth of the broach, the calibration teeth comprise the high-low teeth formed by the splines and the round holes, and the high-low teeth are used for further sleeking and broaching the surface. The service life of the broach additionally provided with the calibration teeth is obviously prolonged, each broach can averagely machine 6,000 parts, the machining cost of each part is lowered by 55.6 percent, the part finish degree is improved to Ra1.6-Ra3.2 from Ra3.2-Ra6.3, the cutter sharpening frequency is reduced, and broach replacement and cutter sharpening frequency is changed into three shifts from one shift.
Description
Technical field
The present invention relates to a kind of assembled spline broach.
Background technology
At present, involute spline broach all adopts overall structure and is made up of same material, and when system stability, this monoblock type broaching tool life-span has reached its best effects.Current ring flange broaching tool is not durable, and the way generally taked is exactly that the overall new material that adopts designs broaching tool, causes broaching tool cost to be more than 2 times of M2 material cost like this.Ring flange draws involute spline operation Problems existing: the broaching tool life-span is low, and namely broaching tool sharpening occurs that unthreaded hole is tight for 2 ~ 3 times, and often broaching tool is processed average more than 2500 parts and just scrap, cutter consumption is serious.Adopt common high speed steel M2 and new material assembling to use, both improve the wearability of broaching tool, the material cost of broaching tool can not be made again significantly to improve.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, a kind of assembled spline broach is provided, adopt the involute spline broach made of two kinds of different materials, compare the monoblock type broaching tool life-span and significantly improve and reduce cost simultaneously.
For achieving the above object, the technical solution used in the present invention is:
A kind of assembled spline broach, comprises broaching tool cutter hub, is disposed with round tooth, chamfered teeth and spline tooth between the pull end of broaching tool cutter hub and targeting part and rear handle and targeting part; The spline finishing teeth rear portion of spline tooth is equiped with the calibration ring as broaching tool finish draw tooth, calibration ring is provided be made up of some groups of splines and circular hole, for smoothing broaching surface stage teeth.
Described calibration ring carries out circumferential registration by key and broaching tool cutter hub, and carries out axial location by nut.
Described calibration ring carries out axial location by two nuts of its end.
The length of described calibration ring is 40 ~ 50mm, external diameter 0.005mm less of broaching tool cutter hub maximum outside diameter.
The material of described calibration ring adopts wear-resisting M35 or M42.
Compared with prior art, the present invention has following beneficial effect:
The present invention assembles calibration ring on existing broaching tool cutter hub, calibration ring is installed on the spline finishing teeth rear portion of spline tooth, it can be used as the finish draw tooth of broaching tool, the stage teeth that finishing teeth is made up of some groups of splines and circular hole, for further smoothing broaching surface; Install the broaching tool after finishing teeth additional to significantly improve service life, often broaching tool on average can be processed 6000, unit price processing cost reduces 55.6%; Part fineness brings up to Ra1.6 ~ Ra3.2 by Ra3.2 ~ Ra6.3; The sharpening frequency reduces, and is extended for class Three's tool changing sharpening by original one class of tool changing sharpening.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Wherein: 1 is broaching tool cutter hub; 2 is calibration ring; 3 is key; 4 is nut; 5 is pull end and targeting part; 6 is round tooth; 7 is chamfered teeth; 8 is spline tooth; 9 is rear handle and targeting part.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1, the present invention includes broaching tool cutter hub 1, between the pull end of broaching tool cutter hub 1 and targeting part 5 and rear handle and targeting part 9, be disposed with round tooth 6, chamfered teeth 7 and spline tooth 8; The spline finishing teeth rear portion of spline tooth 8 is equiped with the calibration ring 2 as broaching tool finish draw tooth, calibration ring 2 is provided be made up of some groups of splines and circular hole, for smoothing broaching surface stage teeth.The material of calibration ring 2 adopts wear-resisting M35 or M42.Calibration ring 2 carries out circumferential registration by key 3 and broaching tool cutter hub 1, and carries out axial location by two nuts 4 of its end.The length of calibration ring 2 is 40 ~ 50mm, external diameter 0.005mm less of broaching tool cutter hub 1 maximum outside diameter.
Principle of the present invention:
Current ring flange draws involute spline operation Problems existing: the broaching tool life-span is low, and namely broaching tool sharpening occurs that unthreaded hole is tight for 2 ~ 3 times, and often broaching tool is processed average more than 2500 parts and just scrap, cutter consumption is serious.The object of the invention is to find the broaching tool material being applicable to this part, this broaching tool material existing wearability must have economy again.
The analysis of causes: ring flange material is 45# steel, endoporus modulation hardness reaches HRC25 ~ 30, and cutter material is general high-speed tool steel, hardness HRC64.5 ~ 65.5, thus causes tool wear not to be durable soon, as shown in the table.
Improvement project:
1, on the basis of common spline broach, calibration ring is increased, further smoothing broaching surface;
2, the excircle dimension of common broaching tool increases progressively, and adopts the external diameter of the calibration ring of new material less than broaching tool maximum outside diameter by 0.005.Such design can play the effect storing broaching tool precision, extends the service life of broaching tool.
Concrete, the present invention, at the ring of broaching tool spline finishing teeth rear portion assembling 40 ~ 50mm length, is processed as the stage teeth of several groups of splines and circular hole, as the finish draw tooth of broaching tool; Cutter entirety adopts general high speed steel material W6MoCr4V2 (M2), and calibration ring adopts better M35 or M42 of wearability; In manufacture sharpening Technology for Heating Processing, adopt numerical control broaching tool to grind and make, segmented heat treatment, manufacture sharpening and select suitable emery wheel.
The present invention includes cutter hub, calibration ring, key and nut.Cutter hub is identical with the structure of common broaching tool, and material is common high speed steel material M2, and calibration ring adopts new material.Carry out circumferential registration by key between calibration ring and cutter hub, carry out axial location by two nuts.When manufacturing broaching tool, after first cutter hub and calibration ring being assembled together, then moulding and reconditioning are carried out to whole cutter.The present invention mainly adopts a kind of new construction broaching tool of new and old material, breaches the conventional inertia thinking of technical staff, in line with cost-saving, improves the innovative design of the machining accuracy of workpiece.
Above content is only and technological thought of the present invention is described; protection scope of the present invention can not be limited with this; every technological thought proposed according to the present invention, any change that technical scheme basis is done, within the protection domain all falling into claims of the present invention.
Claims (5)
1. an assembled spline broach, it is characterized in that: comprise broaching tool cutter hub (1), between the pull end of broaching tool cutter hub (1) and targeting part (5) and rear handle and targeting part (9), be disposed with round tooth (6), chamfered teeth (7) and spline tooth (8); The spline finishing teeth rear portion of spline tooth (8) is equiped with the calibration ring (2) as broaching tool finish draw tooth, calibration ring (2) is provided be made up of some groups of splines and circular hole, for smoothing broaching surface stage teeth.
2. assembled spline broach according to claim 1, is characterized in that: described calibration ring (2) carries out circumferential registration by key (3) and broaching tool cutter hub (1), and carries out axial location by nut (4).
3. assembled spline broach according to claim 2, is characterized in that: described calibration ring (2) carries out axial location by two nuts of its end.
4. the assembled spline broach according to claim 1 or 2 or 3, is characterized in that: the length of described calibration ring (2) is 40 ~ 50mm, external diameter 0.005mm less of broaching tool cutter hub (1) maximum outside diameter.
5. the assembled spline broach according to claim 1 or 2 or 3, is characterized in that: the material of described calibration ring (2) adopts wear-resisting M35 or M42.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676034.2A CN104439501A (en) | 2014-11-21 | 2014-11-21 | Assembled spline broach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676034.2A CN104439501A (en) | 2014-11-21 | 2014-11-21 | Assembled spline broach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104439501A true CN104439501A (en) | 2015-03-25 |
Family
ID=52886685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410676034.2A Pending CN104439501A (en) | 2014-11-21 | 2014-11-21 | Assembled spline broach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104439501A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161126A (en) * | 2017-11-29 | 2018-06-15 | 江阴市永兴机械制造有限公司 | A kind of spline squeezes knife and the pressing method of spline drived gear interval |
| CN109551045A (en) * | 2018-12-29 | 2019-04-02 | 恒锋工具股份有限公司 | A kind of reusable carbide broach |
| CN110340429A (en) * | 2019-08-07 | 2019-10-18 | 江苏上汽汽车变速器有限公司 | A kind of broaching machine orienting device |
| CN112935392A (en) * | 2021-02-01 | 2021-06-11 | 陕西法士特汽车传动集团有限责任公司 | Combined special-shaped spline broach and design method thereof |
| RU217659U1 (en) * | 2022-12-29 | 2023-04-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Чувашский государственный университет имени И. Н. Ульянова" | Slotted two-stage broach |
-
2014
- 2014-11-21 CN CN201410676034.2A patent/CN104439501A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161126A (en) * | 2017-11-29 | 2018-06-15 | 江阴市永兴机械制造有限公司 | A kind of spline squeezes knife and the pressing method of spline drived gear interval |
| CN109551045A (en) * | 2018-12-29 | 2019-04-02 | 恒锋工具股份有限公司 | A kind of reusable carbide broach |
| CN110340429A (en) * | 2019-08-07 | 2019-10-18 | 江苏上汽汽车变速器有限公司 | A kind of broaching machine orienting device |
| CN112935392A (en) * | 2021-02-01 | 2021-06-11 | 陕西法士特汽车传动集团有限责任公司 | Combined special-shaped spline broach and design method thereof |
| CN112935392B (en) * | 2021-02-01 | 2024-04-09 | 陕西法士特汽车传动集团有限责任公司 | Combined special-shaped spline broach and design method thereof |
| RU217659U1 (en) * | 2022-12-29 | 2023-04-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Чувашский государственный университет имени И. Н. Ульянова" | Slotted two-stage broach |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |