CN101318295A - Positioning pin mechanism and positioning method - Google Patents
Positioning pin mechanism and positioning method Download PDFInfo
- Publication number
- CN101318295A CN101318295A CNA2008101278610A CN200810127861A CN101318295A CN 101318295 A CN101318295 A CN 101318295A CN A2008101278610 A CNA2008101278610 A CN A2008101278610A CN 200810127861 A CN200810127861 A CN 200810127861A CN 101318295 A CN101318295 A CN 101318295A
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- Prior art keywords
- pin
- mechanism according
- base
- locating hole
- pad
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000010009 beating Methods 0.000 claims description 23
- 230000004807 localization Effects 0.000 claims description 7
- 230000004323 axial length Effects 0.000 claims description 2
- 230000001603 reducing effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The invention relates to a positioning pin mechanism, comprising a positioning pin and a positioning hole which matches with the positioning pin. The positioning hole is opened and arranged on the base seat of a fixture, the positioning pin comprises a pin head, the end surface of which extends accordingly downwards and is provided with a pin column, and the distance between the end surface and the base seat is larger than the height of burrs on a sheet metal part. The invention also discloses a positioning method for the positioning pin mechanism. By a gasket, clearance is preset between the positioning pin head and the base seat, and when the sheet metal part is sheathed and arranged on the positioning pin, the clearance can contain the burrs on the sheet metal part, thus effectively canceling the positioning error and realizing precise positioning.
Description
Technical field
The present invention relates to the frock field, especially a kind of dowel mechanism and localization method thereof.
Background technology
Automobile frock and soldering cramping apparatus are to require the instrument the highest, that difficulty of processing is maximum during body of a motor car is made, development along with automobile industry, the positioning accuracy of car load soldering cramping apparatus has directly influenced the assembly precision of car load, in order to guarantee the precision of car load assembling better, overcome because the influence that the burr of stamping parts causes, be badly in need of developing a kind of can pinpoint dowel mechanism.
Summary of the invention
The object of the present invention is to provide a kind of dowel mechanism that can avoid the burr on the panel beating product.
For achieving the above object, a kind of dowel mechanism provided by the invention, comprise alignment pin and the locating hole that matches with it, locating hole is opened on the base of anchor clamps, alignment pin comprises the pin head, postponing downwards on the end face of pin head is provided with pin, and the spacing between this end face and the base is greater than the height of burr on the panel beating product.
Another object of the present invention is to provide a kind of localization method of dowel mechanism, this method comprises the step of following order:
(1) alignment pin is inserted in the locating hole, again pad is stuck between the working face of end face that pin is set on the pin head and base;
(2) external force acts on the alignment pin, it is moved in locating hole contact with pad, pad and base until the pin head;
(3) extract pad out.
The present invention is by pad preset clearance between alignment pin head and base, and when the panel beating product was set on the alignment pin, this gap can hold the burr on the product, eliminated position error effectively, realizes accurately location.
Description of drawings
Fig. 1,2 is respectively the structural representation of alignment pin and filling pad among the present invention;
Fig. 3,4,5,6,7 is view of the present invention respectively.
The specific embodiment
A kind of dowel mechanism, comprise alignment pin 10 and with the locating hole 20 of its formation interference fit, locating hole 20 is opened on the base 30 of anchor clamps, the axis of locating hole 20 is vertical with the working face of base 30, base 30 working faces typically refer to the upper surface of base 30, and alignment pin 10 comprises pin head 11, and postponing downwards on the end face of pin 11 is provided with pin 12, spacing between this end face and the base 30 is greater than the height of burr on the panel beating product 50, shown in Fig. 1,3.
In conjunction with Fig. 1, end face and the spacing between the locating hole that pin is set on the pin head are 0.2mm, pin 11 end face away from pin 12 are dome shape, the 12 descending reducings from pin head 11 to pin, pin 11, the cross section of pin 12 is rounded, the hole depth of locating hole 20 is greater than the axial length of pin 12, when production and processing, also can be with pin head 11, the cross section of pin 12 is processed as circle, the shape of rule such as triangle, offer at least two locating holes 20 on the base 30, this structure helps keeping the balance of panel beating product 50, avoid panel beating product 50 run-off the straight on anchor clamps, thereby guarantee panel beating product 50 is accurately located, the end face and the height of the spacing between the locating hole 20 greater than burr on the panel beating product 50 of pin 12 are set on the pin 11 in this mechanism, and this spacing can be guaranteed to hold the burr on the panel beating product 50 when locating, to eliminate position error, as Fig. 1, shown in 2.
Below in conjunction with Fig. 3,4,5,6,7 the present invention is further illustrated, wherein, Fig. 3 is alignment pin 10 view when inserting locating hole 20 downwards, Fig. 4 is the view that alignment pin 10 inserts in the locating hole 20, view when Fig. 5 is to use U-shaped pad 40, Fig. 6 is the view when extracting U-shaped pad 40 out, and Fig. 7 is that panel beating product 50 is set in the view on the alignment pin 10.
In conjunction with Fig. 6, but offer supply and marketing 11 through hole that pass 51 on the panel beating product 50, the slightly larger in diameter of this through hole 51 is in the radial dimension of pin head 11, and panel beating product 50 is set on the alignment pin 10 by this through hole 51, and can be stuck on the alignment pin 10 and avoid contacting with base 30.
When production and processing, earlier alignment pin 10 and locating hole 20 are carried out fine finishining, when the location, at first, alignment pin 10 is inserted in the locating hole of offering on the base 30 20, as shown in Figure 3, when the end face of pin 12 and the spacing between the base 30 being set on pin head 11 being d1, the thickness U-shaped pad 40 that is 0.2mm is stuck between the working face of end face that pin 12 is set on the pin head 11 and base 30, as shown in Figure 4, alignment pin 10 constitutes interference fit with locating hole 20, to prevent the loosening of alignment pin 10; Secondly, press down alignment pin 10, contact with base 30 with filling pad 40, U-shaped pad 40 until pin head 11 with hammer etc., as shown in Figure 5, again filling pad 40 is extracted out, as shown in Figure 6, behind the extraction U-shaped pad 40, the panel beating product 50 that offers through hole 51 is set on the alignment pin 10, promptly finish location to panel beating product 50, as shown in Figure 7, at this moment, spacing d2 between panel beating product 50 and the base 30 equals the thickness of U-shaped pad 40, i.e. 0.2mm.In the present invention, for ease of the location, directly the working face of U-shaped pad 40 along base 30 is stuck on the pin 12, as shown in Figure 4.
Because the burr of general panel beating product 50 can be controlled within the 0.1mm, so require that an end and the spacing between the base 30 near pin 12 is 0.2mm on the pin 11, this spacing also can be adjusted according to the size of actual panel beating product 50 burrs, in the bigger occasion of panel beating product 50 burrs, can adopt the bigger filling pad of thickness 40 to realize.As seen, adopt U-shaped pad 40 can either guarantee the accuracy of fit clearance, simultaneously, can adjust according to actual needs again, operability is stronger.
In sum, core of the present invention is to reserve certain spacing between the end of pin head 11 and base 30, to hold the burr on the panel beating product 50, eliminate the position error that causes owing to the burr on the panel beating product 50, this spacing realizes by having certain thickness filling pad 40, and the thickness of U-shaped pad 40 can be adjusted according to the size of burr on the panel beating product 50.The present invention is easy and simple to handle, and advantage such as have that manufacturing process is simple, long service life, maintenance cost are low can play pinpoint effect effectively, is applicable to the frock that all need be located.
Claims (12)
1, a kind of dowel mechanism, comprise alignment pin and the locating hole that matches with it, locating hole is opened on the base of anchor clamps, it is characterized in that: described alignment pin comprises the pin head, postponing downwards on the end face of pin head has pin, and the spacing between this end face and the base is greater than the height of burr on the panel beating product.
2, dowel mechanism according to claim 1 is characterized in that: end face and the spacing between the locating hole that pin is set on the described pin head are 0.2mm.
3, dowel mechanism according to claim 1 is characterized in that: described alignment pin and locating hole constitute interference fit.
4, dowel mechanism according to claim 1 is characterized in that: described pin head is dome shape away from an end of pin, the descending reducing from the pin head to pin.
5, dowel mechanism according to claim 1 is characterized in that: offer at least two locating holes on the described base.
6, dowel mechanism according to claim 1 is characterized in that: the axis of described locating hole is vertical with the working face of base.
7, dowel mechanism according to claim 1 is characterized in that: the degree of depth of described locating hole is greater than the axial length of pin.
8, dowel mechanism according to claim 1 is characterized in that: offer the through hole that is used to be set on the alignment pin on the described panel beating product, the radial dimension of pin head less than and near the diameter of this through hole.
9, a kind of localization method of dowel mechanism, this method comprises the step of following order:
(1) alignment pin is inserted in the locating hole, again pad is stuck between the working face of end face that pin is set on the pin head and base;
(2) external force acts on the alignment pin, it is moved in locating hole contact with pad, pad and base until the pin head;
(3) extract pad out.
10, the localization method of detent mechanism according to claim 8 is characterized in that: described alignment pin comprises the pin head, and postponing downwards on the end face of pin head has pin, offers at least two locating holes on the base.
11, the localization method of detent mechanism according to claim 8 is characterized in that: described pad is the U-shaped pad, the size of its opening part greater than and near the radial dimension of pin.
12, the localization method of detent mechanism according to claim 9 is characterized in that: the thickness of described U-shaped pad is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101278610A CN101318295B (en) | 2008-07-07 | 2008-07-07 | Positioning pin mechanism and positioning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101278610A CN101318295B (en) | 2008-07-07 | 2008-07-07 | Positioning pin mechanism and positioning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101318295A true CN101318295A (en) | 2008-12-10 |
| CN101318295B CN101318295B (en) | 2011-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101278610A Active CN101318295B (en) | 2008-07-07 | 2008-07-07 | Positioning pin mechanism and positioning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101318295B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069339A (en) * | 2010-12-07 | 2011-05-25 | 苏州和林精密科技有限公司 | Lamination positioning device |
| WO2011088729A1 (en) * | 2010-01-19 | 2011-07-28 | 奇瑞汽车股份有限公司 | Three coordinate measuring method for locating pin which is not perpendicular to reference plane |
-
2008
- 2008-07-07 CN CN2008101278610A patent/CN101318295B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011088729A1 (en) * | 2010-01-19 | 2011-07-28 | 奇瑞汽车股份有限公司 | Three coordinate measuring method for locating pin which is not perpendicular to reference plane |
| CN102069339A (en) * | 2010-12-07 | 2011-05-25 | 苏州和林精密科技有限公司 | Lamination positioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101318295B (en) | 2011-02-16 |
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| C14 | Grant of patent or utility model | ||
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