CN204295443U - A kind of positioning core axle of sleeve part - Google Patents
A kind of positioning core axle of sleeve part Download PDFInfo
- Publication number
- CN204295443U CN204295443U CN201420701155.3U CN201420701155U CN204295443U CN 204295443 U CN204295443 U CN 204295443U CN 201420701155 U CN201420701155 U CN 201420701155U CN 204295443 U CN204295443 U CN 204295443U
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- mandrel
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- sleeve part
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- 238000009434 installation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
本实用新型属于套筒类零件的加工技术领域，涉及一种套筒类零件的定位芯轴。本技术方案的主要特征为，所述的定位芯轴包括安装连接段(1)、锁紧段(2)和定位支撑段(3)，在安装连接段(1)的端部开有B型中心孔(4)，锁紧段(2)呈圆锥状，定位支撑段(3)的中间部位直径小于两端直径。该技术方案，解决了现有技术定位芯轴加工难度大，工件加工误差大的技术问题。
The utility model belongs to the technical field of processing sleeve parts and relates to a positioning mandrel for sleeve parts. The main feature of this technical solution is that the positioning mandrel includes an installation connection section (1), a locking section (2) and a positioning support section (3), and there is a B-shaped opening at the end of the installation connection section (1). The central hole (4), the locking section (2) is conical, and the diameter of the middle part of the positioning support section (3) is smaller than the diameter of both ends. The technical solution solves the technical problems of the prior art that the processing of the positioning mandrel is difficult and the processing error of the workpiece is large.
Description
技术领域technical field
本实用新型属于套筒类零件的加工技术领域，涉及一种套筒类零件的定位芯轴。The utility model belongs to the technical field of processing sleeve parts and relates to a positioning mandrel for sleeve parts.
背景技术Background technique
现有技术中，在磨削某细长轴套筒类零件时，用全程锥度芯轴配加工零件存在以下问题：In the prior art, when grinding certain slender shaft sleeve parts, there are the following problems in matching the processing parts with the full taper mandrel:
1需磨一根1:300的锥度芯轴，长径比大于30，芯轴的加工难度大。1 It is necessary to grind a 1:300 tapered mandrel, the length-to-diameter ratio is greater than 30, and the mandrel is difficult to process.
2磨削过程中容易让刀，1:300锥度难实现，芯轴加工费时费力。2. It is easy to let the knife out during the grinding process, but it is difficult to achieve a 1:300 taper, and the processing of the mandrel is time-consuming and laborious.
3受套筒类零件孔口易产生喇叭口的影响，使芯轴定位不精准，一根芯轴只适合少数零件，传统芯轴加工后，由于芯轴随孔产生变形，加工中产生假象，影响到产品质量，从而再次返工，且加工过程中需要用专用计量仪器计量，多次的重复测量与加工，加工效率较低。3 Affected by the bell mouth of the sleeve parts, the positioning of the mandrel is not accurate. One mandrel is only suitable for a few parts. After the traditional mandrel is processed, the mandrel deforms with the hole, and the process produces false images. Affect product quality, thus rework again, and need to measure with special measuring instrument during processing, repeated measurement and processing many times, processing efficiency is low.
发明内容Contents of the invention
本实用新型解决的技术问题为：提供一种方便定位、提高加工精度的套筒类零件定位芯轴。The technical problem solved by the utility model is: to provide a positioning mandrel for sleeve-type parts which is convenient for positioning and improves machining accuracy.
本实用新型的技术方案为：所述的芯轴包括安装连接段1、锁紧段2和定位支撑段3，在安装连接段1的端部开有B型中心孔4，锁紧段2呈圆锥状，定位支撑段3的中间部位直径小于两端直径。The technical solution of the utility model is: the mandrel includes an installation connection section 1, a locking section 2 and a positioning support section 3, a B-shaped central hole 4 is opened at the end of the installation connection section 1, and the locking section 2 is Conical shape, the diameter of the middle part of the positioning support section 3 is smaller than the diameter of both ends.
作为本技术方案的一种改进，锁紧段2的锥度为1:30。As an improvement of the technical solution, the taper of the locking section 2 is 1:30.
作为本技术方案的一种改进，定位支撑段3两端与中间部分半径只差为0.05mm。As an improvement of the technical solution, the radius difference between the two ends of the positioning support section 3 and the middle part is only 0.05 mm.
本实用新型的有益效果为：本实用新型中的定位芯轴，分为数段，与现有技术相比锁紧段2的长度减小，减小了芯轴的加工难度。另一方面，定位支撑段3分担了一部分作用于锁紧段2的压力，消除了加工过程中，待加工工件喇叭口的现状。The beneficial effects of the utility model are: the positioning mandrel in the utility model is divided into several sections, and compared with the prior art, the length of the locking section 2 is reduced, which reduces the processing difficulty of the mandrel. On the other hand, the positioning support section 3 shares part of the pressure acting on the locking section 2, which eliminates the current situation of the bell mouth of the workpiece to be processed during the processing.
附图说明Description of drawings
图1为本实用新型的结构示意图；Fig. 1 is the structural representation of the utility model;
图2为锁紧段的比例图；Fig. 2 is a scale diagram of the locking section;
图3为定位支撑段的比例图；Fig. 3 is the proportional diagram of positioning support section;
图中：1为安装连接段，2为锁紧段，3为定位支撑段，4为B型中心孔。In the figure: 1 is the installation connection section, 2 is the locking section, 3 is the positioning support section, and 4 is the B-shaped central hole.
具体实施方式Detailed ways
下面结合附图对本技术方案做详细说明。The technical solution will be described in detail below in conjunction with the accompanying drawings.
本实用新型采用的技术方案为，一种细长轴套筒类零件内外孔同轴要求的定位工具，该定位芯轴包括安装连接段1、锁紧段2和定位支撑段3，锁紧段2呈圆锥状，定位支撑段3的中间部位直径小于两端直径。所述芯轴的连接安装段1是用于安装卡箍，使零件在机床上实现安装和旋转。连接安装段1的端部开有B型中心孔4，用于与机床的顶针配合。锁紧段2设有1:30的微锥度，用于锁紧芯轴和零件，使零件与芯轴合为一体，利用摩擦力带动零件转动，定位支撑段3与孔配合间隙最好为0.001～0.003mm，用于实现孔轴的同轴，中间部分小于支撑部分0.05mm，便于加工时避让孔的弯曲缺陷，消除过定位。The technical scheme adopted by the utility model is a positioning tool for the coaxial requirements of the inner and outer holes of the sleeve parts of a slender shaft. 2 is conical, and the diameter of the middle part of the positioning support section 3 is smaller than that of both ends. The connection and installation section 1 of the mandrel is used for installing the clamp, so that the parts can be installed and rotated on the machine tool. The end of the connecting installation section 1 is provided with a B-shaped central hole 4 for matching with the thimble of the machine tool. The locking section 2 has a micro-taper of 1:30, which is used to lock the mandrel and the parts, so that the parts and the mandrel are integrated, and the parts are driven by friction to rotate. The best clearance between the positioning support section 3 and the hole is 0.001 ~0.003mm, used to realize the coaxiality of the hole axis, the middle part is 0.05mm smaller than the supporting part, which is convenient for avoiding the bending defect of the hole during processing and eliminating over-positioning.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701155.3U CN204295443U (en) | 2014-11-20 | 2014-11-20 | A kind of positioning core axle of sleeve part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701155.3U CN204295443U (en) | 2014-11-20 | 2014-11-20 | A kind of positioning core axle of sleeve part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204295443U true CN204295443U (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420701155.3U Expired - Lifetime CN204295443U (en) | 2014-11-20 | 2014-11-20 | A kind of positioning core axle of sleeve part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204295443U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171078A (en) * | 2015-09-16 | 2015-12-23 | 成都四威高科技产业园有限公司 | Machining method for circumferential characteristic of high-precision sleeve type part |
| CN115139395A (en) * | 2022-07-01 | 2022-10-04 | 浙江华业塑料机械股份有限公司 | Polishing device for inner hole of part |
-
2014
- 2014-11-20 CN CN201420701155.3U patent/CN204295443U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171078A (en) * | 2015-09-16 | 2015-12-23 | 成都四威高科技产业园有限公司 | Machining method for circumferential characteristic of high-precision sleeve type part |
| CN115139395A (en) * | 2022-07-01 | 2022-10-04 | 浙江华业塑料机械股份有限公司 | Polishing device for inner hole of part |
| CN115139395B (en) * | 2022-07-01 | 2024-03-26 | 浙江华业塑料机械股份有限公司 | Polishing device for inner hole of part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150429 |
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| CX01 | Expiry of patent term |