CN209562943U - A kind of positioning pin - Google Patents
A kind of positioning pin Download PDFInfo
- Publication number
- CN209562943U CN209562943U CN201821786530.3U CN201821786530U CN209562943U CN 209562943 U CN209562943 U CN 209562943U CN 201821786530 U CN201821786530 U CN 201821786530U CN 209562943 U CN209562943 U CN 209562943U
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- CN
- China
- Prior art keywords
- pin
- changeover portion
- plunger
- positioning pin
- radial dimension
- 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.)
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of positioning pins, it is integrally formed by plunger and pin, plunger tail spherical shape or taper, the axial dimension of pin is greater than the pin axial dimension of common specification positioning pin, changeover portion is equipped between plunger and pin, changeover portion radial dimension is 1.98mm, and changeover portion axial dimension is 1.00mm, pin radial dimension is 2.00mm, and plunger bottom end is identical as changeover portion radial dimension.The utility model can prevent the sagging or clamping stagnation problem on mold in PCB stamp, so that stamp product be accurately positioned.
Description
Technical field
The utility model relates to field of locating technology, a kind of specifically positioning pin.
Background technique
PCB (Printed Circuit Board), Chinese is printed circuit board, also known as printed wiring board, is important
Electronic component, be the supporter of electronic component, be electronic component electrical connection carrier.Since it is using electronic seal
The production of brush art, therefore it is referred to as " printing " circuit board.In PCB production process, stamp is as drilling and a kind of machinery is grasped
Make.And the stamp operation of PCB has higher positioning accuracy to the positioning pin of mold, usually existing common specification positioning pin uses
Straight barrel type, because pcb board puncher punching range of aperture size is in 1.98~2.00mm, and product itself rises in the presence of expanding with heat and contract with cold
Contracting value range is -0.02~﹢ 0.02mm, if usually will cause positioning pin using the positioning pin that straight barrel type radial dimension is 1.98mm
The sagging and clamping stagnation problem in hole.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of positioning pins, can prevent in PCB stamp in mold
Upper sagging or clamping stagnation problem, so that stamp product be accurately positioned.
Technical solution adopted in the utility model is: it is integrally formed by plunger and pin, plunger tail spherical shape or taper,
Changeover portion is equipped between plunger and pin, changeover portion radial dimension is 1.98mm, and changeover portion axial dimension is 1.00mm, pin diameter
To having a size of 2.00mm, plunger bottom end is identical as changeover portion radial dimension.
Preferably, pin is straight barrel type.
Preferably, pin bottom end rounded corner.
Preferably, changeover portion is cylinder.
A kind of positioning pin of the utility model, plunger and pin are integrally formed, and changeover portion, mistake are equipped between plunger and pin
Crossing section radial dimension is 1.98mm, and changeover portion axial dimension is 1.00mm, and pin radial dimension is 2.00mm, plunger bottom end and mistake
Cross that section radial dimension is identical, and positioning pin is installed in holes of products, holes of products pore diameter range is 1.98~2.00mm, and product itself
In the presence of expanding with heat and contract with cold, straight barrel type aperture size is that the positioning pin of 2.00mm is difficult to cover in holes of products or after positioning pin shrinkage
Radial dimension becomes smaller and sink, and changeover portion then avoids the above problem, and changeover portion radial dimension is smaller than pin radial dimension, because
This either takes by hand or equipment automatic sucking, will not all be stuck in holes of products or die hole, to improve product orientation
Precision.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the positioning pin of the utility model.
Fig. 2 is the structural schematic diagram of common specification positioning pin.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the utility model provides a kind of positioning pin, it is integrally formed by plunger 1 and pin 2, and pin 2 is straight
Cartridge type, 1 tail of plunger is spherical or taper, Fig. 2 show common specification positioning pin, and the axial dimension of the utility model pin 2 is greater than
2 axial dimension of pin of common specification positioning pin, is equipped with changeover portion 3 between plunger 1 and pin 2,3 radial dimension of changeover portion is
1.98mm, 3 axial dimension of changeover portion are 1.00mm, and 2 radial dimension of pin is 2.00mm, 1 bottom end of plunger and 3 radial ruler of changeover portion
Very little identical, 3 radial dimension of changeover portion is less than 2 radial dimension of pin, while again smaller than the radial dimension of 1 bottom end of plunger, therefore works as
It will not influence positioning pin locating bias when positioning pin is installed on holes of products or die hole, while facilitating positioning pin to install, i.e.,
Accurate positioning, in addition, changeover portion 3 is increased, so that positioning pin axial dimension is bigger than common positioning pin axial dimension, it is usually common
Specification positioning pin axial dimension is in 17mm or so, and the utility model positioning pin axial dimension is prevented in 17.5~19.3mm
Only positioning pin is installed in hole due to curtailment distorting sag, it is difficult to it draws, and locating bias not only makes positioning pin difficult
It is removed stage makeup and costume with drawing, but also will cause the damage in stamp product surface or hole.
2 bottom end rounded corner of pin, prevents from cutting hand, or automatic equipment is facilitated to grab.
Changeover portion 3 is cylinder, places and draws convenient for positioning pin, will not be stuck in holes of products or die hole.
The utility model preferred embodiment is described above, but is not to be construed as limiting the scope of the invention.
The utility model is not only limited to above embodiments, and specific structure is allowed to vary, all in the utility model demand for independence
Made various change is within the protection scope of the present utility model in protection scope.
Claims (4)
1. a kind of positioning pin, which is characterized in that it is integrally formed by plunger (1) and pin (2), the plunger (1) be it is spherical or
Taper is equipped with changeover portion (3) between the plunger (1) and pin (2), and changeover portion (3) radial dimension is 1.98mm, described
Changeover portion (3) axial dimension is 1.00mm, and pin (2) radial dimension is 2.00mm, plunger (1) bottom end radial dimension and mistake
It is identical to cross section (3) radial dimension.
2. a kind of positioning pin according to claim 1, it is characterised in that: the pin (2) is straight barrel type.
3. a kind of positioning pin according to claim 2, it is characterised in that: pin (2) bottom end rounded corner.
4. a kind of positioning pin according to claim 1, it is characterised in that: the changeover portion (3) is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786530.3U CN209562943U (en) | 2018-10-31 | 2018-10-31 | A kind of positioning pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786530.3U CN209562943U (en) | 2018-10-31 | 2018-10-31 | A kind of positioning pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209562943U true CN209562943U (en) | 2019-10-29 |
Family
ID=68300268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821786530.3U Active CN209562943U (en) | 2018-10-31 | 2018-10-31 | A kind of positioning pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209562943U (en) |
-
2018
- 2018-10-31 CN CN201821786530.3U patent/CN209562943U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |