CN218836611U - Compressing positioning pin combination - Google Patents
Compressing positioning pin combination Download PDFInfo
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- CN218836611U CN218836611U CN202223410632.4U CN202223410632U CN218836611U CN 218836611 U CN218836611 U CN 218836611U CN 202223410632 U CN202223410632 U CN 202223410632U CN 218836611 U CN218836611 U CN 218836611U
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Abstract
The utility model relates to a compress tightly locating pin combination, include: the first positioning pin and the second positioning pin are arranged on the base; the middle parts of the first positioning pin and the second positioning pin are conical parts; the diameter of the conical part is gradually reduced from the tail part to the head part of the first positioning pin and the second positioning pin; the head of the first positioning pin is a screw rod; the head of the second positioning pin is a screw hole matched with the screw rod; the scheme utilizes the automatic centering of the conical part, so the requirement on the aperture on the sample plate is not large, the requirement on the position degree of two groups of holes is only required to be ensured, and the aperture of the sample plate and the workpiece is only required to be ensured to be between the maximum diameter and the minimum diameter of the conical part, so the manufacturing precision and the manufacturing cost are greatly reduced; the positioning device is used for positioning, and only the existing first positioning pin and the second positioning pin are needed to be relatively placed into holes of the sample plate and the workpiece, and the positioning device is automatically positioned and pressed along with the screwing of the stud, so that the operation is simple and convenient, and the working efficiency is greatly improved.
Description
Technical Field
The utility model relates to a locating pin combination, especially a compress tightly locating pin combination.
Background
In welding tools, hole-to-hole positioning is a common positioning mode, a positioning mode of a positioning pin is generally adopted, and if the positioning pin needs to be pressed, a screw rod and a nut are matched at one end of the positioning pin for pressing; however, the corresponding holes and the positioning pins have quite high size processing requirements, otherwise, the positioning pins can not easily penetrate through the two holes and ensure the two holes to be concentric, and particularly when two groups of holes are positioned, the operation is inconvenient and the labor efficiency is low;
the existing hole-to-hole positioning mode has the following problems:
1. after positioning of one group of holes is completed, the other group of holes cannot be ensured to be in a concentric state;
2. the positioning is difficult due to the inconsistent apertures on the two workpieces;
3. the existing positioning pin only has a positioning function and does not have a pressing function;
in conclusion, how to realize the positioning and pressing of two workpieces becomes a problem which needs to be solved urgently by researchers in the field.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to realize the positioning and pressing of two workpieces;
in order to solve the technical problem, the utility model discloses the technical scheme who takes does:
the utility model relates to a compress tightly locating pin combination, include: the first positioning pin and the second positioning pin are arranged on the base; the middle parts of the first positioning pin and the second positioning pin are conical parts; the diameter of the conical part is gradually reduced from the tail part to the head part of the first positioning pin and the second positioning pin; the head of the first positioning pin is a screw rod; the head of the second positioning pin is a screw hole matched with the screw rod;
in the scheme, in the process of positioning the sample plate and the workpiece, the first positioning pin penetrates through the upper end surface of the sample plate, the second positioning pin penetrates through the lower end surface of the workpiece, the hole bodies of the workpiece and the sample plate are arranged at the conical part, the first positioning pin and the second positioning pin are connected through the matching of the screw rod and the screw hole, and the workpiece and the sample plate are positioned;
because the hole bodies of the workpiece and the sample plate are arranged at the conical part, the hole bodies on the workpiece and the sample plate only need to be smaller than the maximum outer diameter of the conical part and larger than the minimum outer diameter of the conical part, and the diameters of the hole bodies on the workpiece and the sample plate do not need to be set to be consistent; the workpiece and the sample plate can be compressed in the process of screwing the first positioning pin and the second positioning pin, so that a gap between the workpiece and the sample plate is avoided;
even if the holes are not concentric at the initial stage of positioning, the holes can be guided to be concentric by the guide of the conical portion in the process of rotating the first positioning pin and the second positioning pin.
In order to facilitate the rotation of the first positioning pin and the second positioning pin, the tail parts of the first positioning pin and the second positioning pin are polygonal parts which are convenient to twist;
the polygonal part is similar to a nut in structure, so that the subsequent screwing with a wrench is facilitated.
In order to explain the structure of the screw rod, the utility model adopts the technical proposal that the outer diameter of the screw rod is smaller than the minimum outer diameter of the conical part;
the arrangement is convenient for the screw rod to be inserted into the hole body of the corresponding workpiece.
In order to further realize the locking of the sample plate and the workpiece, the total thickness of the sample plate and the workpiece is marked as a; when the first positioning pin is inserted into the sample plate and the second positioning pin is inserted into the workpiece, the sample plate and the workpiece are connected in a locking mode, the distance from the end portion of the first positioning pin to the outer end face of the sample plate is b, and the distance from the end portion of the second positioning pin to the outer end face of the workpiece plate is c; wherein a > b + c;
the advantage that sets up like this is, after model, work piece carry out locking connection through first locating pin, second locating pin, the circular cone portion terminal surface of first locating pin, second locating pin still has an adjustment clearance, avoids appearing first locating pin, the laminating locking back of second locating pin circular cone portion terminal surface, and model, work piece still can have the adjustment clearance.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the manufacturing cost is that the conventional positioning pin is used for positioning, the hole on the sample plate must be consistent with the hole on the workpiece, the size of the positioning pin is matched with that of the hole, otherwise, the size of the positioning pin is large, the positioning pin cannot penetrate through the hole, the size of the positioning pin is small, the effect of the positioning pin cannot be achieved, the concentricity cannot be ensured, and the requirement on the manufacturing precision is high; the scheme utilizes the automatic centering of the conical part, so the requirement on the aperture on the sample plate is not large, the requirement on the position degree of two groups of holes is only required to be ensured, the aperture of the sample plate and the workpiece is only required to be ensured to be between the maximum diameter and the minimum diameter of the conical part, and the manufacturing precision and the manufacturing cost are greatly reduced.
2. The working efficiency is as follows: positioning by a positioning pin, wherein the positioning pin can penetrate through the positioning pin only after two groups of holes on the sample plate and the workpiece are completely aligned, and then the positioning pin is tightly pressed by a nut; the device is used for positioning, and only the existing first positioning pin and the second positioning pin are needed to be relatively placed into the holes of the sample plate and the workpiece, and the stud is screwed in to be automatically positioned and compressed, so that the operation is simple and convenient, and the working efficiency is greatly improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a drawing showing a sample plate and a workpiece according to the present invention;
FIG. 2 is a schematic view of a first alignment pin;
FIG. 3 is a schematic view of a second locating pin;
FIG. 4 is an enlarged view at A of FIG. 1;
in the figure: 1-a first locating pin, 2-a second locating pin, 3-a conical part, 4-a screw rod, 5-a screw hole, 6-a workpiece, 7-a sample plate and 8-a polygonal part.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In order to solve the technical problem, the utility model discloses the technical scheme who takes does:
as shown in fig. 1-3, the utility model relates to a compress tightly locating pin combination, include: a first positioning pin 1 and a second positioning pin 2; the middle parts of the first positioning pin 1 and the second positioning pin 2 are both conical parts 3; the diameter of the conical part 3 is gradually reduced from the tail part to the head part of the first positioning pin 1 and the second positioning pin 2; the head of the first positioning pin 1 is a screw rod 4; the head of the second positioning pin 2 is a screw hole 5 matched with the screw rod 4;
in the scheme, in the process of positioning the sample plate and the workpiece, the first positioning pin penetrates through the upper end surface of the sample plate, the second positioning pin penetrates through the lower end surface of the workpiece, the hole bodies of the workpiece and the sample plate are arranged at the conical part, the first positioning pin and the second positioning pin are connected through the matching of the screw rod and the screw hole, and the workpiece and the sample plate are positioned;
because the hole bodies of the workpiece 6 and the sample plate 7 are arranged at the conical part, the hole bodies on the workpiece and the sample plate only need to be smaller than the maximum outer diameter of the conical part and larger than the minimum outer diameter of the conical part, and the diameters of the hole bodies on the workpiece and the sample plate do not need to be set to be consistent; the workpiece and the sample plate can be compressed in the process of screwing the first positioning pin and the second positioning pin, so that a gap between the workpiece and the sample plate is avoided;
even if the holes of one group are in a non-concentric state at the initial stage of positioning, the holes of one group can be guided to a concentric state by the guide of the conical portion in the process of rotating the first positioning pin and the second positioning pin.
As shown in fig. 2-3, in order to facilitate the rotation of the first positioning pin and the second positioning pin, the tail portions of the first positioning pin 1 and the second positioning pin 2 are both polygonal portions 8 facilitating twisting;
the polygonal part is similar to a nut in structure, so that the subsequent screwing with a wrench is facilitated.
As shown in fig. 2, in order to explain the structure of the screw rod, the present invention adopts the structure that the outer diameter of the screw rod 4 is smaller than the minimum outer diameter of the conical part 3;
the arrangement is convenient for the screw rod to be inserted into the hole body of the corresponding workpiece.
As shown in fig. 4, in order to further realize the locking of the sample plate and the workpiece, the total thickness of the sample plate 7 and the workpiece 6 is marked as a; when the first positioning pin 1 is inserted into the sample plate 7 and the second positioning pin 2 is inserted into the workpiece 3, and the sample plate 7 and the workpiece 6 are connected in a locking manner, the distance from the end part of the conical part 3 of the first positioning pin 1 to the outer end face of the sample plate 7 is b, and the distance from the end part of the conical part 3 of the second positioning pin 2 to the outer end face of the workpiece 6 plate is c; wherein a is more than b and c;
the advantage that sets up like this is, after model, work piece carry out locking connection through first locating pin, second locating pin, the circular cone terminal surface of first locating pin, second locating pin still has an adjustment clearance, and the distance in clearance is a-b-c, avoids appearing after first locating pin, the laminating locking of second locating pin circular cone terminal surface, and model, work piece still can have the adjustment clearance.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. A compression locating pin combination, comprising: the first positioning pin and the second positioning pin are arranged on the base;
the middle parts of the first positioning pin and the second positioning pin are conical parts;
the diameter of the conical part is gradually reduced from the tail part to the head part of the first positioning pin and the second positioning pin;
the head of the first positioning pin is a screw rod;
the head of the second positioning pin is a screw hole matched with the screw rod.
2. The compression locating pin combination of claim 1, comprising: the tail parts of the first positioning pin and the second positioning pin are polygonal parts convenient to twist.
3. The compression locating pin combination of claim 1, comprising: the outer diameter of the screw is smaller than the minimum outer diameter of the conical part.
4. The pressing positioning pin combination as claimed in claim 1, wherein the total thickness of the sample plate and the workpiece is denoted as a;
when the first positioning pin is inserted into the sample plate and the second positioning pin is inserted into the workpiece, and the sample plate and the workpiece are locked and connected, wherein the distance from the end part of the first positioning pin to the outer end face of the sample plate is b, and the distance from the end part of the second positioning pin to the outer end face of the workpiece plate is c;
wherein a > b + c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223410632.4U CN218836611U (en) | 2022-12-16 | 2022-12-16 | Compressing positioning pin combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223410632.4U CN218836611U (en) | 2022-12-16 | 2022-12-16 | Compressing positioning pin combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218836611U true CN218836611U (en) | 2023-04-11 |
Family
ID=87310453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223410632.4U Active CN218836611U (en) | 2022-12-16 | 2022-12-16 | Compressing positioning pin combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218836611U (en) |
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2022
- 2022-12-16 CN CN202223410632.4U patent/CN218836611U/en active Active
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