CN212664666U - Quick-change punch structure - Google Patents
Quick-change punch structure Download PDFInfo
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- CN212664666U CN212664666U CN202020877736.8U CN202020877736U CN212664666U CN 212664666 U CN212664666 U CN 212664666U CN 202020877736 U CN202020877736 U CN 202020877736U CN 212664666 U CN212664666 U CN 212664666U
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- fixing plate
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Abstract
The utility model relates to a quick-change punch structure, which comprises a punch body, a pressure plate and a punch fixing plate, wherein the upper end of the punch body is connected with the punch fixing plate through a connecting rod, and the lower end of the punch body penetrates out of a punch body through hole of the pressure plate; the upper end of the connecting rod is in threaded connection with the punch fixing plate, and the lower end of the connecting rod is in threaded connection with the punch body. The structure is simple, parts such as a fixing plate, a screw pin and the like are eliminated, and the material cost and the processing cost are reduced; the punch is convenient to disassemble, a special disassembling tool is clamped into the punch body clamping groove, the punch body can be directly disassembled from the punch fixing plate by rotating the tool, and the connecting rod can be disassembled from the punch body by using a wrench; the assembly is swift, with the spanner connecting rod screw in drift body, use special extracting tool with drift body screw in drift fixed plate can. The punch replacing task which needs 20 minutes originally can be completed within 2 minutes by using the structure, and the replacing time is greatly shortened by 90 percent.
Description
Technical Field
The utility model relates to a stamping die, concretely relates to quick change drift structure.
Background
Automobile longitudinal beam part characteristics: the part size is big (5 ~ 12 meters), and material thickness (3 ~ 10mm), and the hole is many (200 ~ 500) in the design and development process of automobile longitudinal beam blanking-punching die, need use a large amount of parts that punch a hole, and the part that punches a hole includes parts such as drift, die, fixed plate, screw, pin and pressure flitch. The punch belongs to a vulnerable part in the stamping process, and needs to be quickly disassembled and replaced under the conditions of not influencing the production and disassembly of the die.
The traditional punch body is a step punch and needs to be matched with a punch fixing plate for use, a stripper plate needs to be detached when a punch is replaced, the punch fixing plate is detached, the punch in the punch fixing plate is detached again, a new punch is replaced in the punch fixing plate, the fixing plate is fixed on a large fixing plate through a screw and a pin, and then a pressure plate is mounted. The assembly cycle is long, work load is big, directly influences the formation progress of mould.
SUMMERY OF THE UTILITY MODEL
For solving the above problem, the utility model provides a quick change drift structure can realize the quick dismantlement and the installation of drift body, sparingly dismantles drift and assembly drift time, has prolonged the mould live time relatively.
The utility model adopts the technical proposal that: the utility model provides a quick change drift structure, includes the drift body, presses flitch and drift fixed plate, its characterized in that: the upper end of the punch body is connected with the punch fixing plate through a connecting rod, and the lower end of the punch body penetrates out of the punch body through hole of the material pressing plate; the upper end of the connecting rod is in threaded connection with the punch fixing plate, and the lower end of the connecting rod is in threaded connection with the punch body.
Preferably, the upper end face of the punch body is provided with a punch threaded connecting hole and a punch pin positioning hole.
Furthermore, a fixing plate threaded connecting hole and a fixing plate pin positioning hole are formed in the punch fixing plate.
Furthermore, the upper end of the connecting rod is provided with an upper connecting thread matched with the threaded connecting hole of the fixed plate and an upper pin cylindrical positioning surface matched with the pin positioning hole of the fixed plate; and the lower end of the connecting rod is provided with a lower connecting thread matched with the punch threaded connecting hole and a lower pin cylindrical positioning surface matched with the punch pin positioning hole.
Furthermore, the diameter of the cylindrical positioning surface of the upper pin is larger than the outer diameter of the upper connecting thread.
Furthermore, the diameter of the cylindrical positioning surface of the lower pin is larger than the outer diameter of the lower connecting thread.
Preferably, the punch body through hole has a hole diameter D +1.5mm, and D is the punch body diameter.
Preferably, the punch body is provided with a clamping groove for inserting a wrench.
The utility model discloses the beneficial effect who gains is:
(1) the structure is simple: the fixing plate, the bolt pin and other parts are eliminated. The material cost and the processing cost are reduced;
(2) and the disassembly is convenient: the special disassembling tool is clamped into the punch body clamping groove, the punch body can be directly disassembled from the punch fixing plate by rotating the tool, and the connecting rod can be disassembled from the punch body by using a wrench;
(3) the assembly is quick: screwing the connecting rod into the punch body by using a wrench, and screwing the punch body into the punch fixing plate by using a special disassembling tool;
(4) the standard part is formed, and the punch body and the connecting rod are all standardized, so that the mass production is facilitated;
(5) the punch body replacement task which can be completed within 20 minutes originally can be completed within 2 minutes by using the structure, and the design time is shortened by 90%.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a punch body;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic structural view of a connecting rod;
FIG. 5 is a schematic illustration of the punch body being disassembled or installed;
reference numerals: 1. a punch body; 11. a card slot; 12. a punch is in threaded connection with a hole; 13. punch pin locating holes; 2. a connecting rod; 21. an upper pin cylindrical positioning surface; 22. an upper connecting thread; 23. a lower pin cylindrical positioning surface; 24. a lower connecting thread; 25. flattening the head; 3. a material pressing plate; 4. a punch fixing plate; 5. a wrench.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-5, the quick-change punch structure of the present invention comprises a punch body 1, a connecting rod 2, a pressure plate 3 and a punch fixing plate 4, wherein the upper end of the punch body 1 is connected with the punch fixing plate 4 through the connecting rod 2, and the lower end of the punch body penetrates through a punch body through hole of the pressure plate 3; connecting rod 2 upper end and 4 threaded connection of drift fixed plate, lower extreme and 1 threaded connection of drift body to realize the quick dismantlement and the installation of drift body 1.
In the embodiment, the upper end face of the punch body 1 is provided with a punch threaded connecting hole 12 and a punch pin positioning hole 13, the lower end of the connecting rod 2 is provided with a lower connecting thread 24 matched with the punch threaded connecting hole 12 and a lower pin cylindrical positioning surface 23 matched with the punch pin positioning hole 13, so that the punch body 1 and the connecting rod 2 are quickly connected or detached, and the punch pin positioning hole 13 is matched with the lower pin cylindrical positioning surface 23 to realize quick circumferential positioning; the diameter of the lower pin cylindrical positioning surface 23 is larger than the outer diameter of the lower connecting thread 24, namely the lower part of the connecting rod 2 is a stepped shaft, and meanwhile, the punch threaded connecting hole 12 and the punch pin positioning hole 13 are combined into a stepped hole, so that rapid axial positioning is realized.
In this embodiment, be equipped with fixed plate threaded connection hole and fixed plate pin locating hole on the drift fixed plate 4, 2 upper ends of connecting rod are equipped with and go up connecting thread 22 with fixed plate threaded connection hole complex and with fixed plate pin locating hole complex go up pin cylinder locating surface 21, realize connecting rod 2 and drift fixed plate 4's quick connection or dismantlement. The rapid circumferential positioning is realized through the matching of the fixing plate pin positioning hole and the upper pin cylindrical positioning surface 21; the diameter of the upper pin cylindrical positioning surface 21 is larger than the outer diameter of the upper connecting thread 22, namely, the upper part of the connecting rod 2 is a stepped shaft, and meanwhile, the fixed plate threaded connecting hole and the fixed plate pin positioning hole are combined into a stepped hole, so that rapid axial positioning is realized.
In this embodiment, be equipped with on the drift body 1 and supply 5 male draw-in grooves 11 of spanner, combine fig. 5, use special tool spanner 5, the drift body via hole through pressing flitch 3 is inserted in the draw-in groove 11 of drift body 1, rotatory spanner 5 can lift drift body 1 and connecting rod 2 off, the flat head 25 that the tight connecting rod end of reuse ordinary spanner presss from both sides unloads connecting rod 2, change new drift body 1, use opposite action can assemble new drift body 1 to drift fixed plate 4 on, accomplish the change of new drift body 1.
In this embodiment, with reference to fig. 1 and 3, the hole diameter D of the punch body through hole is D +1.5mm, and D is the punch body diameter, so that the punch body 1 can be conveniently taken out of the hole.
The foregoing shows and describes the general principles and principal structural features of the invention. The present invention is not limited by the above-mentioned examples, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and improvements fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a quick change drift structure, includes the drift body, presses flitch and drift fixed plate, its characterized in that: the upper end of the punch body is connected with the punch fixing plate through a connecting rod, and the lower end of the punch body penetrates out of the punch body through hole of the material pressing plate; the upper end of the connecting rod is in threaded connection with the punch fixing plate, and the lower end of the connecting rod is in threaded connection with the punch body.
2. The quick-change punch structure according to claim 1, wherein: and the upper end surface of the punch body is provided with a punch threaded connecting hole and a punch pin positioning hole.
3. The quick-change punch structure according to claim 2, wherein: and the punch fixing plate is provided with a fixing plate threaded connecting hole and a fixing plate pin positioning hole.
4. The quick-change punch structure according to claim 3, wherein: the upper end of the connecting rod is provided with an upper connecting thread matched with the threaded connecting hole of the fixing plate and an upper pin cylindrical positioning surface matched with the pin positioning hole of the fixing plate; and the lower end of the connecting rod is provided with a lower connecting thread matched with the punch threaded connecting hole and a lower pin cylindrical positioning surface matched with the punch pin positioning hole.
5. The quick-change punch structure according to claim 4, wherein: the diameter of the cylindrical positioning surface of the upper pin is larger than the outer diameter of the upper connecting thread.
6. The quick-change punch structure according to claim 4, wherein: the diameter of the cylindrical positioning surface of the lower pin is larger than the outer diameter of the lower connecting thread.
7. The quick-change punch structure according to claim 1, wherein: the hole diameter D of the punch body through hole is D +1.5mm, and D is the diameter of the punch body.
8. The quick-change punch structure according to claim 1, wherein: and the punch body is provided with a clamping groove for inserting a wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020877736.8U CN212664666U (en) | 2020-05-22 | 2020-05-22 | Quick-change punch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020877736.8U CN212664666U (en) | 2020-05-22 | 2020-05-22 | Quick-change punch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212664666U true CN212664666U (en) | 2021-03-09 |
Family
ID=74812127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020877736.8U Active CN212664666U (en) | 2020-05-22 | 2020-05-22 | Quick-change punch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212664666U (en) |
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2020
- 2020-05-22 CN CN202020877736.8U patent/CN212664666U/en active Active
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