CN201588847U - Plastic part positioning structure - Google Patents
Plastic part positioning structure Download PDFInfo
- Publication number
- CN201588847U CN201588847U CN2009202146712U CN200920214671U CN201588847U CN 201588847 U CN201588847 U CN 201588847U CN 2009202146712 U CN2009202146712 U CN 2009202146712U CN 200920214671 U CN200920214671 U CN 200920214671U CN 201588847 U CN201588847 U CN 201588847U
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- CN
- China
- Prior art keywords
- groove
- cylindrical pin
- straight pin
- plastic part
- interference fit
- 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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Abstract
A plastic part positioning structure consists of a cylindrical pin and a positioning part. The cylindrical pin is disposed in a groove arranged in the positioning part, the diameter of the cylindrical pin is in interference fit with that of the groove, the outer wall of the cylindrical pin is provided with a thin rib parallel to an axial direction, and the thin rib is in interference fit with the groove. The size of the cylindrical pin is in clearance fit with that of the groove, the cylindrical pin is in interference fit with the groove by aid of the thin rib on the outer side of the cylindrical pin, the thin rib can be interfered with the groove so as to be extruded to deform or cut during assembly according to characteristics of plastic materials, and the cylindrical pin body on the other side can not be extruded to deform due to large area, thereby not only eliminating an assembly clearance between the cylindrical pin and the groove after extruding or cutting, but also guaranteeing determined extruding or cutting position and direction, and then overcoming the shortage that the cylindrical pin in the prior art is eccentric due to asymmetric stress of pluralities of fine ribs.
Description
Technical field
The utility model relates to mechanical field, relates in particular to the position structure of the mounting technique of plastic part, particularly a kind of plastic part.
Background technique
In the prior art, in being connected of plastic part and other material parts, location between the two adopts pin to cooperate with groove.In product, such points of engagement generally has three or two.Because the foozle requirement will leave design gaps between post and the groove when design.Such gap causes the part Location accuracy low, and causes wearing and tearing and noise in the process of product motion or vibrations.In some improved structures, at pin both sides refinement muscle or the uniform thin muscle that adds more than three or three, but because when straight pin is subjected to asymmetric active force in assembly process, the distortion that is subjected at two or three and above carefully muscle or cut and can cause straight pin off-centre when inconsistent can not reach the requirement of high position precision.
Summary of the invention:
The purpose of this utility model is to provide a kind of position structure of plastic part, and the position structure of described this plastic part will solve the low technical problem of Location accuracy that the pin in the plastic part linkage structure and the design gaps between the groove cause in the prior art.
The position structure of this plastic part of the present utility model is made of straight pin and locating piece, wherein, be provided with groove in the described locating piece, described straight pin is arranged in the described groove, the diameter of straight pin and the diameter of groove are Spielpassung, be parallel on the outer wall of straight pin and axially be provided with a thin muscle, described thin muscle and groove interference fit.
Further, the front end of described thin muscle is domatic.
Working principle of the present utility model is: the size of straight pin and groove be designed and sized to Spielpassung, the thin muscle in the straight pin outside makes straight pin and groove produce interference fit, the characteristic of plastic materials has determined thin influential point of tendons to interfere with groove in assembly process and extrusion or be cut, and the straight pin main body of opposite side can be out of shape because of extruding more greatly and not owing to area, the assembling that had so both guaranteed straight pin and groove after extruding or cutting is very close to each other, guaranteed that again extruding or cutting determine position and direction, thereby overcome in the prior art a plurality of thin muscle owing to the stressed asymmetric deficiency that causes straight pin off-centre.
The utility model and prior art are compared, and its technique effect is actively with tangible.The utility model is parallel to axial setting and a thin muscle only is set on the outer wall of straight pin, thin muscle makes straight pin and groove produce interference fit, the characteristic of plastic materials has determined thin influential point of tendons to interfere with groove in assembly process and extrusion or be cut, and the straight pin main body of opposite side can be out of shape because of extruding more greatly and not owing to area, the assembling that had so both guaranteed straight pin and groove after extruding or cutting is very close to each other, guaranteed that again extruding or cutting determine position and direction, thereby overcome in the prior art a plurality of thin muscle owing to the stressed asymmetric deficiency that causes straight pin off-centre.
Description of drawings:
Fig. 1 is the schematic representation of the straight pin in the position structure of plastic part of the present utility model.
Fig. 2 is the schematic representation of the groove in the position structure of plastic part of the present utility model.
Fig. 3 is the schematic representation of the position structure of plastic part of the present utility model.
Fig. 4 is the generalized section of the position structure of plastic part of the present utility model.
Fig. 5 is an embodiment's the schematic representation of the position structure of plastic part of the present utility model.
Embodiment:
As Fig. 1, Fig. 2 Fig. 3 and shown in Figure 4, the position structure of plastic part of the present utility model, constitute by straight pin 2 and locating piece, wherein, be provided with groove 1 in the described locating piece, described straight pin 2 is arranged in the described groove 1, and the diameter of the diameter of straight pin 2 and groove 1 is a Spielpassung, be parallel on the outer wall of straight pin 2 and axially be provided with a thin muscle, described thin muscle 3 and groove 1 interference fit.
Further, the front end of described thin muscle 3 is domatic.
Working principle of the present utility model is: the size of straight pin 2 and groove 1 be designed and sized to Spielpassung, the thin muscle 3 in straight pin 2 outsides makes straight pin 2 and groove 1 produce interference fit, the characteristic of plastic materials has determined thin muscle 3 can be in assembly process to interfere with groove 1 and extrusion or be cut, and straight pin 2 main bodys of opposite side can be out of shape because of extruding more greatly and not owing to area, so both guaranteed that straight pin 2 was very close to each other with the assembling of groove 1 after extruding or cutting, guaranteed that again extruding or cutting determine position and direction, thereby overcome in the prior art a plurality of thin muscle 3 owing to the stressed asymmetric deficiency that causes straight pin 2 off-centre.
In an embodiment of the present utility model as shown in Figure 5, in part 5, be provided with 3 straight pins 2, it is in Vertical direction that the thin muscle 3 on two straight pins 2 is wherein arranged, the thin muscle 3 on another straight pin 2 is in the horizontal direction.3 grooves 1 are arranged in part 4, and it is to be horizontally disposed with that two grooves 1 are wherein arranged, and another one groove 1 is the Vertical direction setting.The gravitational direction that application product is subjected to is a Vertical direction.And force bearing point do not having a side of thin muscle 3, and is not easy to wear when vibration like this.
Claims (2)
1. the position structure of a plastic part, constitute by straight pin and locating piece, it is characterized in that: be provided with groove in the described locating piece, described straight pin is arranged in the described groove, the diameter of straight pin and the diameter of groove are Spielpassung, be parallel on the outer wall of straight pin and axially be provided with a thin muscle, described thin muscle and groove interference fit.
2. the position structure of plastic part as claimed in claim 1, it is characterized in that: the front end of described thin muscle is domatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202146712U CN201588847U (en) | 2009-12-01 | 2009-12-01 | Plastic part positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202146712U CN201588847U (en) | 2009-12-01 | 2009-12-01 | Plastic part positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588847U true CN201588847U (en) | 2010-09-22 |
Family
ID=42748626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202146712U Expired - Fee Related CN201588847U (en) | 2009-12-01 | 2009-12-01 | Plastic part positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588847U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444653A (en) * | 2010-10-06 | 2012-05-09 | 形状连接技术有限公司及两合公司 | Functional element for attachment to plastic component, component assembly, die button and method |
| TWI553238B (en) * | 2015-01-07 | 2016-10-11 | 鴻海精密工業股份有限公司 | Coaxial assembly and assembling method using the same |
| CN113135289A (en) * | 2020-01-18 | 2021-07-20 | 杭州启飞智能科技有限公司 | Pump shock attenuation connection structure and plant protection unmanned aerial vehicle thereof |
-
2009
- 2009-12-01 CN CN2009202146712U patent/CN201588847U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444653A (en) * | 2010-10-06 | 2012-05-09 | 形状连接技术有限公司及两合公司 | Functional element for attachment to plastic component, component assembly, die button and method |
| CN102444653B (en) * | 2010-10-06 | 2016-01-06 | 形状连接技术有限公司及两合公司 | Be attached to the functional element of plastic member, component assembly, mould button and method |
| TWI553238B (en) * | 2015-01-07 | 2016-10-11 | 鴻海精密工業股份有限公司 | Coaxial assembly and assembling method using the same |
| CN113135289A (en) * | 2020-01-18 | 2021-07-20 | 杭州启飞智能科技有限公司 | Pump shock attenuation connection structure and plant protection unmanned aerial vehicle thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20121201 |