CN204430624U - Coaxial positioning frock alignment pin - Google Patents
Coaxial positioning frock alignment pin Download PDFInfo
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- CN204430624U CN204430624U CN201420854342.5U CN201420854342U CN204430624U CN 204430624 U CN204430624 U CN 204430624U CN 201420854342 U CN201420854342 U CN 201420854342U CN 204430624 U CN204430624 U CN 204430624U
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Abstract
The utility model provides a kind of coaxial positioning frock alignment pin, comprise spring ringfeder, first conehead pin and the second conehead pin, described first conehead pin comprises screwed hole portion and the first nut portion, described screwed hole portion is connected by First tapering with described nut portion, second conehead pin, described second conehead pin comprises threaded portion and the second nut portion, described threaded portion is connected by second tapering with described second nut portion, connected by screwed hole portion described in described threaded portion precession between described first conehead pin and described second conehead pin, described spring ringfeder is enclosed within described First tapering, screwed hole portion, on threaded portion and second tapering, between described first nut portion and the second nut portion.Ladder hole alignment pin of the present utility model, can efficient solution to determine the central coaxial assembly problem of different pore size part, axiality positioning precision is about 0.3mm, can meet Product jointing requirement.
Description
Technical field
The utility model relates to a kind of alignment pin, particularly a kind of coaxial positioning frock alignment pin.
Background technology
For the coaxial positioning frock in the hole of different-diameter, it is the difficult problem in Fixture Design all the time.Example is orientated as with the central coaxial of the different pore size of the part of two shown in Fig. 1, wherein, part 1 two center bore Φ 17+0.5/0, part 2 outer transverse beams aperture Φ 15+0.03/-0.25, when locating, within requiring coaxial deviation 0.5mm, during outside weldings, frock can be born and be welded the high temperature that brings, and positioning precision just can avoid the rosin joint that causes because of position error within needing to reach 0.5mm.
Therefore, for accurately location prevents rosin joint, still need the coaxial positioning technology in hole of research and development different-diameter in this area.
Utility model content
The purpose of this utility model is just to provide a kind of coaxial positioning frock alignment pin.
Coaxial positioning frock alignment pin of the present utility model, described alignment pin comprises:
Spring ringfeder;
First conehead pin, described first conehead pin comprises screwed hole portion and the first nut portion, and described screwed hole portion is connected by First tapering with described nut portion,
Second conehead pin, described second conehead pin comprises threaded portion and the second nut portion, and described threaded portion is connected by second tapering with described second nut portion,
Connected by screwed hole portion described in described threaded portion precession between described first conehead pin and described second conehead pin, described spring ringfeder is enclosed within described screwed hole portion and threaded portion, between described first nut portion and the second nut portion.
In another preference, described spring ringfeder is provided with 6-10 road groove from two ends to alternate intervals in the middle part of spring ringfeder.
In another preference, described spring ringfeder is provided with 8 road grooves from two ends to alternate intervals in the middle part of spring ringfeder.
In another preference, described groove end is circular hole.
In another preference, inside described spring ringfeder two ends, there is the platform conical surface, and surface roughness≤0.8 μm in described the conical surface and described First tapering, second tapering, so that described spring ringfeder is tightly placed on described First tapering, second tapering.
In another preference, the surface roughness in described the conical surface and described First tapering, second tapering is 0.2-0.8 μm.
In another preference, described first conehead pin and the second conehead pin are connected by the threaded portion at middle part and screwed hole portion, by rotating middle part screw thread, spring ringfeder two ends are made to be enclosed within First tapering and second tapering of the first conehead pin and the second conehead pin respectively, produce the power expanded outwardly, thus spring ringfeder is tightly placed on described First tapering, second tapering.
In another preference, described spring ringfeder is made up of 65Mn or spring steel, and hardness is 40-45HRC.
In another preference, the length of described spring ringfeder is 65-80mm, and the length of described groove is 40-60mm.
In another preference, the cone angle in described First tapering is 50-70 degree; And/or
The cone angle in described second tapering is 50-70 degree.
In another preference, the cone angle in described First tapering is 60 degree.
In another preference, the cone angle in described second tapering is 60 degree.
In another preference, inside, described screwed hole portion is M5 or M6 screwed hole, described threaded portion comprises threaded portion and pin connecting portion, described threaded portion has M5 or M6 screw thread, described pin connecting portion is arranged between described threaded portion and described second tapering, and the external diameter of described pin connecting portion is identical with the external diameter in described screwed hole portion.
In another preference, the hardness of described first conehead pin is 55-60HRC; And/or
The hardness of the second conehead pin is 55-60HRC.
In another preference, the length of described first conehead pin is 50-80mm, and the length in described screwed hole portion is 20-50mm, and the length in described first nut portion is 10-20mm, surface roughness≤0.8 μm in described screwed hole portion.
In another preference, the length of described second conehead pin is 60-90mm, the length in described threaded portion is 45-60mm, the length in described first nut portion is 10-20mm, described threaded portion has the screw thread that 15-35mm is long, and surface roughness≤0.8 μm in described threaded portion, be preferably 0.2-0.8 μm, be more preferred from 0.2-0.5 μm.
Coaxial positioning frock alignment pin of the present utility model, be a kind of ladder with hole alignment pin, can efficient solution to determine the central coaxial assembly problem of different pore size part, axiality positioning precision is about 0.3mm, can meet Product jointing requirement.
Should be understood that within the scope of the utility model, above-mentioned each technical characteristic of the present utility model and can combining mutually between specifically described each technical characteristic in below (eg embodiment), thus form new or preferred technical scheme.As space is limited, tiredly no longer one by one to state at this.
Accompanying drawing explanation
Fig. 1 is existing different pore size positioning tool figure, and wherein part 1 illustrates with cross-section structure.
Fig. 2 shows alignment pin cross-sectional view of the present utility model.
Fig. 3 is the first conehead keying composition.
Fig. 4 is the second conehead keying composition.
Fig. 5 is spring ringfeder structure chart.
Fig. 6 is the cross section structure schematic diagram adopting alignment pin of the present utility model to locate the part of two different pore sizes.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.
As shown in Figure 2, alignment pin of the present utility model, comprising:
Spring ringfeder 3, first conehead pin 5 and the second conehead pin 4.
As shown in Figures 2 and 3, described first conehead pin 5 comprises screwed hole portion 6 and the first nut portion 7, and described screwed hole portion 6 is connected by First tapering 8 with described nut portion 7.
In a preference, the cone angle in described First tapering 8 is 50-70 degree; In another preference, the cone angle in described First tapering 8 is 60 degree.
In a preference, inside, described screwed hole portion 6 has screwed hole, as M5 or M6 screwed hole.
In a preference, the hardness of described first conehead pin 5 is 55-60HRC.
As shown in Figures 2 and 4, described second conehead pin 4 comprises threaded portion 9 and the second nut portion 10, and described threaded portion 9 is connected by second tapering 11 with described second nut portion 10.
In a preference, the cone angle in described second tapering 11 is 50-70 degree.In another preference, the cone angle in described second tapering 11 is 60 degree.
Described threaded portion 9 comprises threaded portion 12 and pin connecting portion 13, and described pin connecting portion 13 is arranged between described threaded portion 12 and described second tapering 11, and preferably the external diameter of described pin connecting portion 13 is identical with the external diameter in described screwed hole portion 6.
In a preference, described threaded portion 12 has M5 or M6 screw thread.
In a preference, the hardness of the second conehead pin 4 is 55-60HRC.
As shown in Figure 2, connected by screwed hole portion 6 described in described threaded portion 9 precession between described first conehead pin 5 and described second conehead pin 4, described spring ringfeder 3 is enclosed within described First tapering 8, screwed hole portion 6, threaded portion 9 and second tapering 11, between described first nut portion 7 and the second nut portion 10.
As shown in Figure 5, described spring ringfeder 3 is provided with 6-10 road groove 30 from two ends to alternate intervals in the middle part of spring ringfeder.
In another preference, described spring ringfeder 3 is provided with 8 road grooves 30 from two ends to alternate intervals in the middle part of spring ringfeder.In another preference, described groove 30 end is circular hole 31.
Described alternate intervals is arranged, for 8 road grooves, refer to and be evenly provided with 4 road grooves from the first end of spring to middle part, be evenly provided with 4 road grooves from the second end of spring to middle part, the groove of first end and the groove of the second end are arranged alternately, and the arbitrary groove of first end is between two grooves of the second end.
Inside described spring ringfeder two ends, there is the platform conical surface 32, and surface roughness≤0.8 μm in described the conical surface 32 and described First tapering 8, second tapering 11, so that described spring ringfeder 3 is tightly placed on tapering 11,8, second, described First tapering, contribute to reducing tapering dead point to the wearing and tearing of the platform conical surface.
In a preference, described spring ringfeder 3 is made up of 65Mn or spring steel, and hardness is 40-45HRC, ensures elasticity and toughness.And the hardness of spring ringfeder 3 is less than the hardness of both sides first conehead pin 5 and described second conehead pin 4, distortion or the wearing and tearing of the platform conical surface can be reduced in the contact area of tapering after reaching dead point when reducing, thus desirable effect can be reached.
In a preference, the deflection >=1mm of described spring ringfeder 3.
Below for the positioning tool of two parts shown in Fig. 1, the use of alignment pin of the present utility model is described.For the positioning tool of two parts described in Fig. 1, by as follows for alignment pin design size of the present utility model:
The length of described spring ringfeder is 68mm, designs 8 road grooves, and in lotus flower flap, the length of described groove is 50mm, and groove end is circular hole, and diameter is 4mm, and the inner setting table conical surface in two ends, surface roughness is 0.8 μm, and cone angle is 60 degree.The external diameter of spring ringfeder is 14.75mm, and internal diameter is 10mm.
The length of described first conehead pin is 60mm, the length in described screwed hole portion is 30mm, and the length in described first nut portion is 13mm, and the cone angle in First tapering is 60 degree, platform cone bottom external diameter is 14.75mm, the surface roughness in described screwed hole portion, First tapering all≤0.8 μm.The external diameter in described screwed hole portion is 10mm, and inside has M6 screwed hole, and screw thread effective depth is 18-20mm.First nut portion is hexagonal (hexagon)nut, and the distance between two jiaos, interval is 15mm.
The length of described second conehead pin is 70mm, the length in described threaded portion is 40mm, the length in described first nut portion is 13mm, described threaded portion has the pin connecting portion of the long M6 threaded portion of 18mm and 22mm, the external diameter of pin connecting portion is 10mm, the cone angle in second tapering is 60 degree, and platform cone bottom external diameter is 14.75mm, and surface roughness≤0.8 μm in described threaded portion, second tapering.Second nut portion is hexagonal (hexagon)nut, and the distance between two jiaos, interval is 13mm, the external diameter of a circle≤14.75mm of hexagonal (hexagon)nut.
As shown in Figure 6, adopt alignment pin of the present utility model by two part coaxial positioning of different pore size, first by ladder with hole alignment pin successively through another outer transverse beams hole of the outer transverse beams hole of part 2, part 1 and part 2.First conehead pin 5 and the second conehead pin 4 are connected by the threaded portion at middle part and screwed hole portion, by rotating middle part screw thread, spring ringfeder 3 two ends are made to be enclosed within First tapering and second tapering of the first conehead pin and the second conehead pin respectively, produce the power expanded outwardly, thus tensioner part 1, make part 1 centre hole axis and the first conehead pin 5 and the second conehead pin 4 coaxial, realize the hole coaxial positioning frock of part 1 and part 2, axiality positioning precision is about 0.5mm.
The size of spring ringfeder of the present utility model, the first conehead pin and the second conehead pin has no particular limits, in the understanding structure of alignment pin of the present utility model and the basis of principle, the parameters such as the aperture of two parts that those skilled in the art can assemble as required design.
Alignment pin of the present utility model, can efficient solution to determine the central coaxial assembly problem of different pore size part, axiality positioning precision is about 0.3mm, can meet Product jointing requirement.
The all documents mentioned at the utility model are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present utility model.
Claims (10)
1. a coaxial positioning frock alignment pin, is characterized in that, described alignment pin comprises:
Spring ringfeder;
First conehead pin, described first conehead pin comprises screwed hole portion and the first nut portion, and described screwed hole portion is connected by First tapering with described nut portion,
Second conehead pin, described second conehead pin comprises threaded portion and the second nut portion, and described threaded portion is connected by second tapering with described second nut portion,
Connected by screwed hole portion described in described threaded portion precession between described first conehead pin and described second conehead pin, described spring ringfeder is enclosed within described screwed hole portion and threaded portion, between described first nut portion and the second nut portion.
2. alignment pin as claimed in claim 1, is characterized in that, described spring ringfeder is provided with 6-10 road groove from two ends to alternate intervals in the middle part of spring ringfeder.
3. alignment pin as claimed in claim 1, it is characterized in that, inside described spring ringfeder two ends, there is the platform conical surface, and surface roughness≤0.8 μm in described the conical surface and described First tapering, second tapering, so that described spring ringfeder is tightly placed on described First tapering, second tapering.
4. alignment pin as claimed in claim 1, it is characterized in that, the hardness of described spring ringfeder is 40-45HRC.
5. alignment pin as claimed in claim 2, it is characterized in that, the length of described spring ringfeder is 65-80mm, and the length of described groove is 40-60mm.
6. alignment pin as claimed in claim 1, it is characterized in that, the cone angle in described First tapering is 50-70 degree; And/or
The cone angle in described second tapering is 50-70 degree.
7. alignment pin as claimed in claim 1, it is characterized in that, inside, described screwed hole portion is M5 or M6 screwed hole, described threaded portion comprises threaded portion and pin connecting portion, described threaded portion has M5 or M6 screw thread, described pin connecting portion is arranged between described threaded portion and described second tapering, and the external diameter of described pin connecting portion is identical with the external diameter in described screwed hole portion.
8. alignment pin as claimed in claim 1, it is characterized in that, the hardness of described first conehead pin is 55-60HRC; And/or
The hardness of the second conehead pin is 55-60HRC.
9. alignment pin as claimed in claim 1, it is characterized in that, the length of described first conehead pin is 50-80mm, and the length in described screwed hole portion is 20-50mm, the length in described first nut portion is 10-20mm, surface roughness≤0.8 μm in described screwed hole portion.
10. alignment pin as claimed in claim 1, it is characterized in that, the length of described second conehead pin is 60-90mm, the length in described threaded portion is 45-60mm, the length in described first nut portion is 10-20mm, described threaded portion has the screw thread that 15-35mm is long, and surface roughness≤0.8 μm in described threaded portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854342.5U CN204430624U (en) | 2014-12-25 | 2014-12-25 | Coaxial positioning frock alignment pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854342.5U CN204430624U (en) | 2014-12-25 | 2014-12-25 | Coaxial positioning frock alignment pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204430624U true CN204430624U (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854342.5U Active CN204430624U (en) | 2014-12-25 | 2014-12-25 | Coaxial positioning frock alignment pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204430624U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551504A (en) * | 2014-12-25 | 2015-04-29 | 上海友升铝业有限公司 | Coaxial positioning pin for stepped hole |
| CN112719057A (en) * | 2020-12-17 | 2021-04-30 | 余正雄 | Reamer is used in machine parts processing |
| CN114932519A (en) * | 2022-06-22 | 2022-08-23 | 东风汽车股份有限公司 | Compound locating pin and tool |
-
2014
- 2014-12-25 CN CN201420854342.5U patent/CN204430624U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551504A (en) * | 2014-12-25 | 2015-04-29 | 上海友升铝业有限公司 | Coaxial positioning pin for stepped hole |
| CN112719057A (en) * | 2020-12-17 | 2021-04-30 | 余正雄 | Reamer is used in machine parts processing |
| CN114932519A (en) * | 2022-06-22 | 2022-08-23 | 东风汽车股份有限公司 | Compound locating pin and tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201702, Shanghai Qingpu District, Shanghai Qing Ping highway 2058 Patentee after: Shanghai Yousheng Aluminum Co., Ltd Address before: 201702, Shanghai Qingpu District, Shanghai Qing Ping highway 2058 Patentee before: SHANGHAI UNISON ALUMINUM PRODUCTS Co.,Ltd. |