CN211614021U - Composite punching die for machining gasket - Google Patents
Composite punching die for machining gasket Download PDFInfo
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- CN211614021U CN211614021U CN201922422811.1U CN201922422811U CN211614021U CN 211614021 U CN211614021 U CN 211614021U CN 201922422811 U CN201922422811 U CN 201922422811U CN 211614021 U CN211614021 U CN 211614021U
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- punch
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- fixing plate
- hole punch
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Abstract
The utility model belongs to the technical field of the die, a compound die for processing gasket is disclosed, including the drift and fixed plate, the clamp plate of three different shapes, utilize the inner chamber of gasket appearance terrace die as the size with the locating plate location to all the other hole site sizes by the fixed plate assembly have been guaranteed. The utility model discloses the die structure is small and exquisite, and die and curing mould have been simplified greatly in the manufacturing process to, the structure all is the assembly, and the drift damages easy maintenance, has reduced cost of maintenance.
Description
Technical Field
The utility model belongs to the technical field of the die, in particular to a accord with die for processing gasket.
Background
In the current production, the gasket shown in fig. 1-3 needs to be machined, but because the gasket is mostly in a single piece or in a small batch, the size of the gasket needs to be adjusted according to the machining and experimental conditions before the product is shaped, and the gasket is not suitable for relating to a vulcanization die, a stamping die, a forging piece, a casting piece and the like in terms of cost and only depends on a bench worker. However, the machining precision cannot be guaranteed by simply relying on bench workers, the consistency is poor, and the machining is time-consuming and labor-consuming.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the existing gasket is complex to process, cannot guarantee precision, is poor in consistency and the like, the composite punching die for processing the gasket is provided.
The technical scheme of the utility model:
a compound die for machining gaskets, said compound die comprising: the punch comprises a large-hole punch, four small-hole punches, a fixing plate and an outline punch;
the center of the fixing plate is provided with a large-hole punch, and four small-hole punches are arranged around the large-hole punch;
a boss is processed below the fixing plate, a through hole is formed in the middle of the outer punch, and the through hole of the outer punch is matched with the boss on the fixing plate.
The technical characteristics of the utility model and further improvement do:
1. the large-hole punch head is in interference fit with the fixing plate, and the small hole punch head is in interference fit with the fixing plate.
2. The boss of the fixing plate and the through hole of the outline punch head are in small clearance fit.
3. The compound die further comprises a pressing plate and a screw; the pressing plate is arranged above the fixing plate and used for fixing the large-hole punch and the small-hole punch, so that the cutting edges of the large-hole punch and the small-hole punch are located on the same horizontal plane, and the screw is used for connecting the pressing plate above the fixing plate.
4. The compound punching die also comprises four countersunk head screws, and the countersunk head screws are used for fixedly connecting the outline punching head and the fixing plate; the cutting edges of the profile punch, the large-hole punch and the small-hole punch are all positioned on the same horizontal plane.
5. The large-hole punch is cylindrical.
6. The handle part of the small-hole punch is cylindrical, and the diameter of the handle part of the small-hole punch is larger than that of the head part.
The utility model discloses frock simple structure. Under the requirement of guaranteeing the part size, the frock part is as few as possible to the drift is all detachable, if damage, also is convenient for change, practices thrift the cost (about only 1/10 of compound die). The new product can be finished by a bench worker without upper punch debugging, so that the production time is saved.
Drawings
FIG. 1 is a schematic view of a square gasket;
FIG. 2 is a schematic view of a profiled shim;
FIG. 3 is a schematic view of a rectangular shim;
FIG. 4 is a schematic view of a composite die construction;
in the figure: 1-big hole punch, 2-small hole punch, 3-pressing plate, 4-fixing plate, 5-shape punch, 6 countersunk head screw and 7 screw.
Detailed Description
As shown in fig. 4, a compound die for processing a gasket comprises a large-hole punch 1, a small-hole punch 2, a pressure plate 3, a fixing plate 4, a profile punch 5, a plurality of countersunk head screws 6 and a plurality of screws 7. The punch is made of wear-resistant materials such as alloy tool steel CrWMn or Cr12MoV, the quenching hardness HRC 55-60, and the fixing plate and the pressing plate are made of 45 steel.
The center of the fixing plate 4 is provided with a large-hole punch 1, the periphery of the large-hole punch 1 is provided with a plurality of small-hole punches 2, and the large-hole punch 1 and the small-hole punches 2 are fixed on the fixing plate through a pressing plate 3. The large-hole punch and the small-hole punch are in interference fit with the fixing plate. The form and position tolerance of the hole is ensured by the size of the fixing plate.
The big hole punch head can be directly processed into a cylinder shape when the diameter is larger, and the small hole punch head is too small, so that the handle part of the small hole punch head is processed into a thicker cylinder shape to strengthen the strength.
A square boss is processed below the fixing plate, a through hole is formed in the middle of the outer punch, and the outer punch is matched with the boss on the fixing plate. The bosses on the retainer plate maintain a clearance fit of H7/f7 with the through holes on the outline punch. While the profile punch is connected to the fixing plate by means of a number of countersunk screws 6. Not only has the function of positioning, but also prevents the outline punch from rotating. The precision is ensured by the machining precision of the fixing plate.
And (3) grinding the upper surface of the fixing plate by using a tool grinder, and fixing the pressing plate on the fixing plate through 2 screws for fixing the punching head and the small-hole punching head.
Further, the punch profile is determined according to the part profile. The cutting edges of the three punches are kept on the same horizontal plane.
In addition, all drifts and fixed plate are detachable, are convenient for change when damaging, practice thrift the cost, also can change the drift of equidimension not.
Example 1
A compound die for machining gaskets, which is used for machining square gaskets in figure 1.
The outer punch, the large-hole punch and the small-hole punch are punched out by a bench worker at one time, and the outer punch, the large-hole punch and the small-hole punch are respectively made into independent punches according to phi 3.2 mm, phi 16 mm, and phi 24.5 mm multiplied by 24.5 mm.
The small hole punch of 3.2 mm is too small and the shank is machined to a cylindrical shape of 5.6 mm diameter for added strength. The phi 16 mm large-hole punch can be directly processed into a cylinder, the center of the fixing plate is provided with the large-hole punch, and the periphery of the large-hole punch is provided with four small-hole punches; the cutting edges of the large-hole punch and the small-hole punch keep consistent in horizontal position.
A square boss with the length of 24.5 mm multiplied by 24.5 mm is machined above the fixing plate, a corresponding square hole is machined in the middle of the outline punch, the square boss on the fixing plate and the square hole of the outline punch are kept in clearance fit of H7/f7, and the boss on the fixing plate is matched with the outline punch male die.
After the outer punch and the fixing plate are fixed by four countersunk head screws, the top surface is ground flat by a tool grinder, and finally the pressing plate is arranged on the fixing plate by two screws. The cutting edges of the three punches are ensured to be on the same horizontal plane.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A compound die for machining gaskets, said compound die comprising: the punch comprises a large-hole punch, four small-hole punches, a fixing plate and an outline punch;
the center of the fixing plate is provided with a large-hole punch, and four small-hole punches are arranged around the large-hole punch;
a boss is processed below the fixing plate, a through hole is formed in the middle of the outer punch, and the through hole of the outer punch is matched with the boss on the fixing plate.
2. A compound die for machining gaskets according to claim 1, characterized in that: the large-hole punch and the fixed plate are in interference fit, and the small-hole punch and the fixed plate are in interference fit.
3. A compound die for machining gaskets according to claim 1, characterized in that: the boss of the fixing plate and the through hole of the outline punch head are in small clearance fit.
4. A compound die for machining gaskets according to claim 1, characterized in that: the compound die further comprises a pressing plate and a screw; the pressing plate is arranged above the fixing plate and used for fixing the large-hole punch and the small-hole punch, so that the cutting edges of the large-hole punch and the small-hole punch are located on the same horizontal plane, and the screw is used for connecting the pressing plate above the fixing plate.
5. A compound die for machining gaskets according to claim 4, characterized in that: the compound punching die also comprises four countersunk head screws, and the countersunk head screws are used for fixedly connecting the outline punching head and the fixing plate; the cutting edges of the profile punch, the large-hole punch and the small-hole punch are all positioned on the same horizontal plane.
6. A compound die for machining gaskets according to claim 1, characterized in that: the large-hole punch is cylindrical.
7. A compound die for machining gaskets according to claim 1, characterized in that: the handle part of the small-hole punch is cylindrical, and the diameter of the handle part of the small-hole punch is larger than that of the head part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422811.1U CN211614021U (en) | 2019-12-27 | 2019-12-27 | Composite punching die for machining gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422811.1U CN211614021U (en) | 2019-12-27 | 2019-12-27 | Composite punching die for machining gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211614021U true CN211614021U (en) | 2020-10-02 |
Family
ID=72633391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922422811.1U Active CN211614021U (en) | 2019-12-27 | 2019-12-27 | Composite punching die for machining gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211614021U (en) |
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2019
- 2019-12-27 CN CN201922422811.1U patent/CN211614021U/en active Active
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