CN218693103U - Combined internal cooling punch - Google Patents

Abstract

The utility model relates to a mould manufacturing field, concretely relates to modular internal cooling drift. Including the drift connecting rod and install in its lower extreme drift, drift connecting rod lower extreme external diameter department is provided with the external screw thread, the drift hole be provided with the internal thread that external screw thread fit connects, the drift connecting rod with the punch is connected the water hole at the two center of back and is coincided and correspond, the drift connecting rod with the drift junction is provided with anti-overflow water structure, anti-overflow water structure is including sealed annular, sealing washer, sealed annular set up in on terminal surface and the circular bead face under the drift connecting rod, the sealing washer install in the sealed annular. The utility model discloses combination formula internal cooling drift structural design is simple, reasonable, under the prerequisite of the performance of guaranteeing the product, can reduce the machining degree of difficulty of product by a wide margin, effectively reduces product manufacturing cost simultaneously, improves product market competition.

Description

Combined internal cooling punch

Technical Field

The utility model relates to a mould manufacturing field, concretely relates to modular internal cooling drift.

Background

The punching process is a kind of processing method which applies external force to the material by means of press and mould to make it separate or produce plastic deformation so as to obtain the required shape and size of the part. The punch is used as a key part in a stamping die and is in direct contact with a formed part to perform blanking and stretching on a material, and in the stamping process, the punch is influenced by long-term high-frequency impact force, shearing force and friction force, so that failure modes such as plastic deformation, fracture failure, adhesion abrasion, abrasive wear and the like are easy to occur. Because the hard alloy has the properties of high hardness, high wear resistance, strong compression resistance, adhesion resistance and the like, the hard alloy is often used as the preferred material of the punch.

For the problems, the hard alloy material can effectively prolong the service life of the die and improve the product quality, but the integral hard alloy structure has the following problems that 1, the hard alloy material belongs to a difficult-to-machine material, and the integral hard alloy structure increases the machining difficulty of the cooling water hole; 2. the hard alloy has high hardness but relatively poor toughness, and the hard alloy is easy to break at the position of a water outlet in the stamping process; 3. the hard alloy material is 400 to 2200 yuan/kg, compared with common hot work die steel, the finished product is high in price, and the market has no price advantage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an in solving the punching press process, the problem of integral carbide drift fracture inefficacy provides a modular internal cooling drift, guarantees the size and the shape precision of the part of producing and improves the life of mould, prolongs mould maintenance cycle, reduces drift product manufacturing cost simultaneously.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a modular internal cooling drift which characterized in that: including the drift connecting rod and install in its lower extreme drift, drift connecting rod lower extreme external diameter department is provided with the external screw thread, the drift hole be provided with the internal thread that external screw thread fit connects, the drift connecting rod with the punch is connected the water hole at the two center of back and is coincided and correspond, the drift connecting rod with the drift junction is provided with anti-overflow water structure, anti-overflow water structure is including sealed annular, sealing washer, sealed annular set up in on terminal surface and the circular bead face under the drift connecting rod, the sealing washer install in the sealed annular.

The coaxiality of the external thread and the water hole is 0.01mm, and the coaxiality of the internal thread and the water hole is 0.01mm.

Anaerobic adhesive is coated at the joint of the external thread and the internal thread.

The diameter of the sealing ring is 0.2mm higher than the depth of the sealing ring groove.

The punch connecting rod is made of hot-work die steel.

The punch is made of hard alloy materials.

Compared with the prior processing mode, the beneficial effects of the utility model are as follows:

1. the utility model discloses combination formula internal cooling drift, effectual solved the punching process, integral carbide drift fracture inefficacy problem improves the life of mould, extension mould maintenance cycle.

2. The utility model discloses combination formula internal cooling drift is with integral carbide internal cooling drift structural design for drift connecting rod and drift built-up connection, and the drift adopts carbide material, and the drift connecting rod adopts hot work mould steel material, satisfying under the operation requirement prerequisite, reduces the use proportion of high price material, reduction material cost.

3. The utility model discloses combination formula internal cooling drift, because carbide material belongs to a difficult processing material, integral carbide internal cooling drift structure, the cooling water hole processing degree of difficulty is big, and the design is drift connecting rod and drift built-up connection, reduces the processing degree of difficulty and manufacturing cost by a wide margin, shortens processing cycle.

Description of the drawings:

FIG. 1 is a structural diagram of a combined internal cooling punch according to the present invention;

FIG. 2 is a structural diagram of a punch connecting rod component of a combined internal cooling punch of the present invention;

FIG. 3 is a structural view of a punch component of a combined internal cooling punch according to the present invention;

fig. 4 is a schematic drawing illustrating the stamping of a combined internal cooling punch according to the present invention;

in the figure: 1. a punch connecting rod; 2. a water pore; 3. a sealing ring A; 4. a punch; 5. a seal ring B; 6. anaerobic adhesive; 7. a sealing ring groove A; 8. a sealing ring groove B; 9. an external thread; 10. an internal thread; 11. and (5) stamping the part.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Examples

As shown in fig. 1-3, a modular internal cooling drift, including drift connecting rod 1, drift 4, drift connecting rod 1 adopts hot work die steel to make, 1 lower extreme external diameter department of drift connecting rod is provided with external screw thread 9, drift 4 adopts carbide material to make, 4 holes of drift are provided with internal thread 10, drift 4 is installed in 1 lower extreme of drift connecting rod, it is fixed with internal thread 10 to be connected through external screw thread 9, connect the coincidence of the water hole 2 at the two center of back and correspond, external screw thread 9 scribbles anaerobism glue 6 with internal thread 10 junction and fastens, prevent to appear not hard up or the problem of droing among the punching process.

Be provided with anti-overflow water structure in drift connecting rod 1 and 4 junctions of drift, be provided with sealing ring groove A7 under the 1 circular bead face of drift connecting rod, the terminal surface is provided with sealing ring groove B8 down, sealing ring groove A7 is different with sealing ring groove B8's specification, sealing washer A3 installs in sealing ring groove A7, sealing washer B5 installs in sealing ring groove B8, guarantee that sealing washer A3 is higher than sealing ring groove A7 0.2mm, sealing washer B5 is higher than sealing ring groove B8.2mm, drift connecting rod 1 is connected the back with drift 4, seal up with sealing washer B5 through extrusion sealing washer A3.

During the structural design, consider drift connecting rod 1 and 4 assembly backs of drift, the dislocation problem in water hole 2 probably appears, consequently the external screw thread 9 and the water hole 2 axiality 0.01mm of 1 on the drift connecting rod, internal thread 10 and water hole 2 axiality 0.01mm on the drift 4 reduce the water hole dislocation as far as possible.

As shown in fig. 4, for the utility model relates to a modular interior cooling drift punching press schematic diagram, drift 4 adopt the carbide material to make, and 4 length of drift are longer than punching press part 11, guarantee among the punching press process carbide material and the contact of punching press part. In the stamping process, drift connecting rod 1 does not directly participate in blanking, tensile work, and hot work die steel can satisfy the user demand, reduces the use proportion of carbide high price material, reduce cost, simultaneously, compares the carbide material, and hot work die steel has higher toughness, has solved the cracked problem of drift connecting rod.

The above description is further detailed in connection with the preferred embodiments of the present invention, and it is not to be construed that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses a under the prerequisite of the design, can also make simple deduction and replacement, all should regard as the utility model discloses a protection scope.

Claims (4)

1. A combined internal cooling punch is characterized in that: including the drift connecting rod and install in its lower extreme drift, drift connecting rod lower extreme external diameter department is provided with the external screw thread, the drift hole be provided with the internal thread that external screw thread fit connects, the drift connecting rod with the punch is connected the water hole at the two center of back and is coincided and correspond, the drift connecting rod with the drift junction is provided with anti-overflow water structure, anti-overflow water structure is including sealed annular, sealing washer, sealed annular set up in on terminal surface and the circular bead face under the drift connecting rod, the sealing washer install in the sealed annular.

2. A modular internal cooling punch according to claim 1, wherein: the coaxiality of the external thread and the water hole is 0.01mm, and the coaxiality of the internal thread and the water hole is 0.01mm.

3. A modular, internally cooled punch according to claim 1, characterised in that: the joint of the external thread and the internal thread is coated with anaerobic adhesive.

4. A modular internal cooling punch according to claim 1, wherein: the diameter of the sealing ring is 0.2mm higher than the depth of the sealing ring groove.

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