CN209792380U - Punching needle for processing pipe moving piston - Google Patents
Punching needle for processing pipe moving piston Download PDFInfo
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- CN209792380U CN209792380U CN201920314804.7U CN201920314804U CN209792380U CN 209792380 U CN209792380 U CN 209792380U CN 201920314804 U CN201920314804 U CN 201920314804U CN 209792380 U CN209792380 U CN 209792380U
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- punch
- processing
- needle
- moving piston
- pipe moving
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Abstract
the utility model relates to a piston processing technology field especially relates to move a tub piston processing with towards needle, including towards the needle body, it is equipped with the drift to dash needle body one end, the drift is from the tip past towards the back taper that needle body direction cross-section diminishes gradually. The application provides a move a tub processing of piston with towards needle, move a tub processing of piston with towards needle through the drift that is the back taper, rely on sharp drift tip to repair the burr gradually when moving back the needle, thereby make it is difficult for there being the burr to punch a hole that dashes the final formation of needle.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of piston machining, in particular to a punching needle for machining a movable pipe piston.
[ background of the invention ]
In the pipe-moving piston (piston second) which is one of the precision parts of the automobile engine, as shown in fig. 1 and 2, the pipe-moving piston 10 is provided with a plurality of oil return holes 101 in order to ensure the sufficient lubrication of the pipe-moving piston 10.
The oil return hole 101 is formed through cold stamping, but because the wall of the pipe moving piston 10 is thick, and the oil return hole 101 is small, burrs are easily formed when the oil return hole 101 is stamped to form a hole by a traditional cylindrical stamping needle, so that the appearance of the traditional cylindrical stamping needle is flawed, and the working quality of the pipe moving piston is even affected when the appearance is serious.
[ summary of the invention ]
For solving above-mentioned technical problem, the aim at of this application provides move a tub processing of piston with towards needle, move a tub processing of piston with towards needle through the drift that is the back taper, rely on sharp drift tip to repair the burr gradually when moving back the needle, thereby make it is difficult for there being the burr to punch a hole that dashes the final formation of needle.
The application is realized by the following technical scheme:
Move a tub processing of piston and use towards needle, including towards the needle body, towards needle body one end and be equipped with the drift, the drift is from the tip past towards the back taper that needle body direction cross-section diminishes gradually.
The punch pin for processing the pipe moving piston has a circular cross section.
The punch pin for processing the pipe moving piston has the taper of the punch pin of 0.3-0.5 degree.
the punch pin for processing the pipe moving piston is characterized in that the length of the punch pin is 7 mm-12 mm.
The punch pin for processing the pipe moving piston has the diameter of 1.8-2.4 mm.
The punching needle for processing the pipe moving piston is characterized in that the end of the punching needle body far away from the punch is provided with a mounting part, and the mounting part is in a cylindrical shape with a radial section larger than that of the punching needle body.
in the punch pin for processing the pipe moving piston, the mounting part, the punch pin body and the punch are integrally formed.
In the punch pin for machining a transfer piston as described above, the material of the punch pin body and the punch is high-speed steel.
The punch pin for processing the pipe moving piston has the advantages that the cross section of the punch pin body is larger than that of the punch head, and the joint of the punch pin body and the punch head is in circular arc transition.
Compared with the prior art, the method has the following advantages:
The punching needle for processing the tube moving piston gradually trims burrs by relying on a sharp end part of the punching head when the punching needle is punched and withdrawn through the inverted cone-shaped punching head, so that burrs are not easy to exist in punched holes finally formed by the punching needle.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a perspective view of the tube moving piston;
FIG. 2 is a full sectional view of the transfer piston;
FIG. 3 is a schematic perspective view of the punch pin for processing the tube moving piston;
FIG. 4 is a front view of the punch pin for processing the tube moving piston;
fig. 5 is an enlarged view of a portion a of fig. 4.
[ detailed description ] embodiments
In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 2 to 5, the punching needle for processing the tube moving piston provided by the embodiment of the present application comprises a punching needle body 1, wherein a punch 2 is arranged at one end of the punching needle body 1, and the punch 2 is in an inverted cone shape with a gradually reduced cross section from an end part to the direction of the punching needle body 1. Its advantage lies in, in the punching process, because drift 2 is the back taper, mainly relies on the front end of drift 2 realizes punching a hole, and its sharp tip can be repaired the burr gradually when moving back needle of drift 2, thereby makes the punching a hole that the towards needle finally formed is difficult for having the burr.
Specifically, the punch 2 is circular in cross section.
More preferably, the taper of the punch 2 is 0.3 to 0.5 degrees. Because the strength of the punching needle is reduced when the taper is too large, and the burr trimming effect is poor when the taper is too small, the punch 2 with the taper of 0.3-0.5 degrees is selected to be optimal after a plurality of tests.
in the embodiment, the length of the punch 2 is 7 mm-12 mm; the diameter is 1.8 mm-2.4 mm.
Because the punching needle is a consumable product, in order to facilitate the disassembly and assembly of the punching needle, the end of the punching needle body 1 far away from the punch 2 is provided with an installation part 3, and the installation part 3 is in a cylindrical shape with a radial section larger than that of the punching needle body 1.
In order to ensure the overall strength of the punching needle, the mounting part 3, the punching needle body 1 and the punch 2 are integrally formed.
Preferably, the material for manufacturing the punch pin body 1 and the punch 2 is high-speed steel.
In addition, the section of the punch needle body 1 is larger than that of the punch 2, and the joint of the punch needle body 1 and the punch 2 is in arc transition. The connecting structure with arc transition enables the connection strength of the punch needle body 1 and the punch 2 to be better, and the punch needle is more suitable for high-strength operation.
To sum up, this application move a tub piston processing with towards needle through the drift that is the back taper, rely on sharp drift tip to repair the burr gradually when moving back the needle punching a hole, thereby make it is difficult for having the burr to punch a hole that the needle finally formed.
the foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not intended to limit the disclosure to the particular forms disclosed. Similar or identical methods, structures, etc. as used herein, or several technical inferences or substitutions made on the concept of the present application should be considered as the scope of the present application.
Claims (9)
1. The punching needle for processing the pipe moving piston comprises a punching needle body (1) and is characterized in that a punch (2) is arranged at one end of the punching needle body (1), and the punch (2) is in an inverted cone shape with a gradually-reduced cross section from the end part to the direction of the punching needle body (1).
2. The punch pin for processing the pipe moving piston as recited in claim 1, wherein the cross section of the punch (2) is circular.
3. The punch pin for processing the pipe moving piston according to claim 1, wherein the taper of the punch (2) is 0.3-0.5 degrees.
4. The punch pin for processing the pipe moving piston according to claim 1, wherein the length of the punch (2) is 7mm to 12 mm.
5. The punch pin for processing the pipe moving piston as claimed in claim 2, wherein the diameter of the punch (2) is 1.8mm to 2.4 mm.
6. The punch pin for processing the pipe moving piston according to claim 1, wherein the punch pin body (1) is provided with a mounting part (3) at one end far away from the punch (2), and the mounting part (3) is cylindrical with a radial section larger than that of the punch pin body (1).
7. The punch pin for processing the pipe moving piston according to claim 6, wherein the mounting portion (3), the punch pin body (1) and the punch (2) are integrally formed.
8. The punch pin for processing the pipe moving piston according to claim 1, wherein the material for manufacturing the punch pin body (1) and the punch (2) is high-speed steel.
9. The punch pin for processing the pipe moving piston according to claim 1, wherein the cross section of the punch pin body (1) is larger than that of the punch head (2), and the joint of the punch pin body (1) and the punch head (2) is in circular arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920314804.7U CN209792380U (en) | 2019-03-12 | 2019-03-12 | Punching needle for processing pipe moving piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920314804.7U CN209792380U (en) | 2019-03-12 | 2019-03-12 | Punching needle for processing pipe moving piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209792380U true CN209792380U (en) | 2019-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920314804.7U Active CN209792380U (en) | 2019-03-12 | 2019-03-12 | Punching needle for processing pipe moving piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209792380U (en) |
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2019
- 2019-03-12 CN CN201920314804.7U patent/CN209792380U/en active Active
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