CN202877632U - Broach handle end soft guide-in structure - Google Patents
Broach handle end soft guide-in structure Download PDFInfo
- Publication number
- CN202877632U CN202877632U CN201220558257.5U CN201220558257U CN202877632U CN 202877632 U CN202877632 U CN 202877632U CN 201220558257 U CN201220558257 U CN 201220558257U CN 202877632 U CN202877632 U CN 202877632U
- Authority
- CN
- China
- Prior art keywords
- broach
- face
- handle end
- broaching tool
- protective sleeve
- 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
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a broach handle end soft guide-in structure which comprises a broach and a protective sleeve. A handle end of the broach is in a circular bead shaft structure. The protective sleeve is pressed by a synthetic rubber mold to be a truncated conic body. An axial blind hole is formed in a large end face of the protective sleeve and is in an interference fit connection with a section, with a small diameter, of the handle end of the broach. The outer diameter of the large end face is smaller than the outer diameter of a section, with a large diameter, of the handle end of the broach by 1 to 2 mm. Two end faces are installed leaning against each other. An axial hole is formed in a small end face of the protective sleeve and communicated with the axial blind hole of the large end face. Due to arrangement of the soft and elastic protective sleeve on the handle end of the broach, the broach handle end soft guide-in structure is simple and easy to install. When the broach handle end soft guide-in structure is in use, a workpiece to be broached is guided into the broach along the axial direction of the protective sleeve. Due to aligning installation, mutual collision is avoided so that a rejection rate is reduced. A collision special test is not needed after broaching, auxiliary work time is shortened and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of machine cut cutter structure optimal design, and specifically, the utility model relates to the soft guiding structure of a kind of broaching tool pommel.
Background technology
Broaching is that a kind of efficient is high, good, the stay-in-grade machine cut form of precision, 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.
The utility model content
The utility model proposes the soft guiding structure 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 utility model is achieved through the following technical solutions technical goal.
The soft guiding structure 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 utility model 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 the utility model structural profile schematic diagram.
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 utility model is described in further detail with reference to the accompanying drawings for the below.
The soft guiding structure 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 in the utility model.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 utility model is installed the sheath 2 of soft and high resilience deformability at the pommel 1.1 of broaching tool 1, and is 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. soft guiding structure of broaching tool pommel, 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. the soft guiding structure of broaching tool pommel according to claim 1, it is characterized in that: described sheath (2) is used the synthetic rubber compression molding.
3. the soft guiding structure of broaching tool pommel according to claim 1, 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 |
|---|---|---|---|
| CN201220558257.5U CN202877632U (en) | 2012-10-29 | 2012-10-29 | Broach handle end soft guide-in structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220558257.5U CN202877632U (en) | 2012-10-29 | 2012-10-29 | Broach handle end soft guide-in structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202877632U true CN202877632U (en) | 2013-04-17 |
Family
ID=48069098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220558257.5U Expired - Fee Related CN202877632U (en) | 2012-10-29 | 2012-10-29 | Broach handle end soft guide-in structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202877632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950328A (en) * | 2012-10-29 | 2013-03-06 | 江苏太平洋精锻科技股份有限公司 | Anti-bumping structure of handle end of broach |
-
2012
- 2012-10-29 CN CN201220558257.5U patent/CN202877632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950328A (en) * | 2012-10-29 | 2013-03-06 | 江苏太平洋精锻科技股份有限公司 | Anti-bumping structure of handle end of broach |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |