CN102950328A - Anti-bumping structure of handle end of broach - Google Patents
Anti-bumping structure of handle end of broach Download PDFInfo
- Publication number
- CN102950328A CN102950328A CN2012104196869A CN201210419686A CN102950328A CN 102950328 A CN102950328 A CN 102950328A CN 2012104196869 A CN2012104196869 A CN 2012104196869A CN 201210419686 A CN201210419686 A CN 201210419686A CN 102950328 A CN102950328 A CN 102950328A
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- CN
- China
- Prior art keywords
- broach
- broaching tool
- pommel
- handle end
- bumping
- 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.)
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses an anti-bumping structure of a handle end of a broach. The anti-bumping structure comprises a broach and a protective sleeve, wherein the handle end of the broach is in a shoulder shaft structure, the protective sleeve is pressed into a truncated cone by a synthesis rubber die, the large end surface of the truncated cone is provided with an axial blind hole and is connected with a small-diameter section of the handle end of the broach in an interference fit way, the outer diameter of the large end surface is 1-2mm smaller than the outer diameter of the large-diameter section of the handle end of the broach, the large end surface is abutted against the surface of the handle end of the broach, the small end surface of the protective surface is provided with an axial hole, and the axial hole is communicated with the axial blind hole of the large end surface. The anti-bumping structure has the advantages that the handle end of the broach is provided with the protective sleeve with flexibility and elastic deformation capability, the structure is simple, and the installation is easy; when the broach is practically used, a workpiece to be broached is guided to the broach in the axial direction of the protective sleeve, so the mutual bumping is avoided due to the centering installation, and the discard rate is naturally reduced; and after broaching is completed, the special inspection for bumping is not needed, the working time for auxiliary works is reduced, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of machine cut cutter structure optimal design, specifically, the present invention relates to the anti-structure of colliding with of a kind of broaching tool pommel.
Background technology
Broaching is that a kind of efficient is high, precision good, stay-in-grade machine cut form, is widely used in high accuracy internal spline, internal tooth and the processing of keyway class parts batch.Axle shaft gear in the saloon car transmission belongs to high class gear, usually adopts Broaching Technology processing internal spline wherein in the industry.Every broaching processing all need be experienced a handling operation, because the axle shaft gear endoporus is less, and the beat in the production line is shorter, when the operative employee installs workpiece unless you give your whole attention to it, inner hole of workpiece easily and the broaching tool pommel collide with.Seriously colliding with to cause the seam distortion of inner hole of workpiece end, and this seam is the position of equipped spacing jump ring, scraps in case seam distortion excess just forms workpiece.Generally speaking, there is fault of construction in the broaching tool pommel of prior art, is not suitable for doing in the production line broaching processing in enormous quantities.
Summary of the invention
The present invention proposes the anti-structure of colliding with of a kind of broaching tool pommel mainly for the deficiencies in the prior art, and this is simple in structure, making is easy, easy for installation, effectively avoids the generation of colliding with.
The present invention is achieved through the following technical solutions technical goal.
The anti-structure of colliding with of broaching tool pommel, it comprises broaching tool and sheath.Its improvements are: the pommel of described broaching tool is a first little rear large joint shoulder axle construction.Described sheath is molded into truncated cone with macromolecular material, its large end face is provided with axial blind hole and is connected with the pommel reduced diameter section interference accessory of broaching tool, the large end face external diameter is than the little 1～2mm of pommel enlarged diameter section external diameter of broaching tool, by installing, the sheath small end face is provided with the axial blind hole that axial hole is linked up large end face to both ends of the surface mutually.
As further improvement project, the synthetic rubber compression molding of described sheath.
As further improvement project, the nitrile rubber compression molding of described sheath.
The present invention compared with prior art has following good effect:
1, the sheath of the external soft and high resilience deformability of broaching tool pommel, simple in structure, make easily;
2, import the workpiece of phase fit along sheath, centring property is good, avoids mutually colliding with, and minimizing is scrapped;
3, collide with without scruple, quick for installation, need not do the check of bump injury patent item after the processing yet, reduce unproductive time, improve work efficiency.
Description of drawings
Fig. 1 is structural profile schematic diagram of the present invention.
Fig. 2 is the jacket structure schematic diagram.
Fig. 3 is that prior art broaching tool pommel is a pitch cylinder axle construction schematic diagram.
The specific embodiment
The invention will be further described with reference to the accompanying drawings for the below.
The anti-structure of colliding with of broaching tool pommel shown in Figure 1, it comprises broaching tool 1 and sheath 2.The pommel 1.1 of described broaching tool 1 is free end, and non-supporting shaft part is mainly used in importing workpiece.The pommel 1.1 of broaching tool 1 is made a first little rear large joint shoulder axle among the present invention.Described sheath 2 is truncated cone, and its large end face is provided with axial blind hole and is connected with the pommel 1.1 smaller diameter end interference fit of broaching tool 1, and the large end face external diameter is than the little 1.2mm of broaching tool 1 pommel, 1.1 enlarged diameter section external diameters, and both ends of the surface are mutually by installing.Sheath 2 small end faces are provided with the axial blind hole that axial hole is linked up large end face, and this ventilating structure is convenient on the pommel that sheath 2 is installed to broaching tool 1 smoothly.Sheath 2 nitrile rubber compression molding in the present embodiment, small end face cylindrical rounding arc angle.
The present invention installs the sheath 2 of soft and high resilience deformability at the pommel 1.1 of broaching tool 1, simple in structure, install easily.During actual the use, workpiece to be broached axially imports on the broaching tool 1 along sheath 2, installs because of centering and avoids mutually colliding with, and naturally reduces scrappage.Need not do special bump injury check after broaching is finished yet and reduce unproductive time, enhance productivity.
Claims (3)
1. a broaching tool pommel prevents colliding with structure, and it comprises broaching tool (1) and sheath (2); It is characterized in that: the pommel (1.1) of described broaching tool (1) is a first little rear large joint shoulder axle construction; Described sheath (2) is molded into truncated cone with macromolecular material, its large end face is provided with axial blind hole and is connected with pommel (1.1) the reduced diameter section interference accessory of broaching tool (1), the large end face external diameter is than the little 1～2mm of pommel (1.1) enlarged diameter section external diameter of broaching tool (1), by installing, sheath (2) small end face is provided with the axial blind hole that axial hole is linked up large end face to both ends of the surface mutually.
2. broaching tool pommel according to claim 1 prevents colliding with structure, and it is characterized in that: described sheath (2) is used the synthetic rubber compression molding.
3. broaching tool pommel according to claim 1 prevents colliding with structure, and it is characterized in that: described sheath (2) is used the nitrile rubber compression molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104196869A CN102950328A (en) | 2012-10-29 | 2012-10-29 | Anti-bumping structure of handle end of broach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104196869A CN102950328A (en) | 2012-10-29 | 2012-10-29 | Anti-bumping structure of handle end of broach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102950328A true CN102950328A (en) | 2013-03-06 |
Family
ID=47760041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104196869A Pending CN102950328A (en) | 2012-10-29 | 2012-10-29 | Anti-bumping structure of handle end of broach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102950328A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2987801A (en) * | 1958-10-06 | 1961-06-13 | Nat Broach & Machinery Company | Broach |
| EP0322079A1 (en) * | 1987-12-22 | 1989-06-28 | Crown Gear B.V. | Tool for cutting gear wheels, and a method for resharpening said tool after wear |
| US20040165962A1 (en) * | 2003-02-26 | 2004-08-26 | Nachi-Fujikoshi Corp. | Internal broaching machine and internal broach |
| CN201272546Y (en) * | 2008-09-17 | 2009-07-15 | 六安江淮永达机械制造有限公司 | Protective cover for mechanical axis part gear portion |
| CN201839157U (en) * | 2010-08-12 | 2011-05-18 | 南车襄樊机车有限公司 | Protecting jacket on head of traction motor shaft |
| CN102494140A (en) * | 2011-12-27 | 2012-06-13 | 北京隆轩橡塑有限公司 | Protective sleeve for polymer elastic dust guard seat for axle |
| CN202877632U (en) * | 2012-10-29 | 2013-04-17 | 江苏太平洋精锻科技股份有限公司 | Broach handle end soft guide-in structure |
-
2012
- 2012-10-29 CN CN2012104196869A patent/CN102950328A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2987801A (en) * | 1958-10-06 | 1961-06-13 | Nat Broach & Machinery Company | Broach |
| EP0322079A1 (en) * | 1987-12-22 | 1989-06-28 | Crown Gear B.V. | Tool for cutting gear wheels, and a method for resharpening said tool after wear |
| US20040165962A1 (en) * | 2003-02-26 | 2004-08-26 | Nachi-Fujikoshi Corp. | Internal broaching machine and internal broach |
| CN201272546Y (en) * | 2008-09-17 | 2009-07-15 | 六安江淮永达机械制造有限公司 | Protective cover for mechanical axis part gear portion |
| CN201839157U (en) * | 2010-08-12 | 2011-05-18 | 南车襄樊机车有限公司 | Protecting jacket on head of traction motor shaft |
| CN102494140A (en) * | 2011-12-27 | 2012-06-13 | 北京隆轩橡塑有限公司 | Protective sleeve for polymer elastic dust guard seat for axle |
| CN202877632U (en) * | 2012-10-29 | 2013-04-17 | 江苏太平洋精锻科技股份有限公司 | Broach handle end soft guide-in structure |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |