CN216175392U - Pressure die with replaceable die head - Google Patents

Abstract

The utility model discloses a pressure die with a replaceable die head, relates to a wire-drawing die, and aims to solve the problems that the whole pressure die is scrapped due to the abrasion of the surface of a wire passing hole of the pressure die head, and the use cost is higher, and the technical scheme is as follows: the utility model provides a removable pressure mould of die head, includes die sleeve, mold core and die head, die sleeve and die head are standard steel, the mold core mounting hole has been seted up along the axle center to the one end of die sleeve, mold core hot pressing interference is pegged graft in the mold core mounting hole, the die head mounting groove has been seted up along the axle center to the other end of die sleeve, die head demountable installation is in the die head mounting groove, follows the axis of mold core and die head runs through and has seted up the line hole. According to the die head replaceable pressure die, the die head adopts a replaceable structure, and standard steel with relatively low material price is selected, so that the use cost of the die head is effectively reduced.

Description

Pressure die with replaceable die head

Technical Field

The utility model relates to a wire-drawing die, in particular to a pressure die with a replaceable die head.

Background

The wire drawing die is the most important tool in the metal wire processing process, and mainly has the main functions that the metal wire is forced to pass through a die hole under the action of external force, so that the sectional area of the metal wire is compressed and deformed to the expected diameter or shape, the design of the wire drawing die directly influences the service life of the wire drawing die and the drawing quality of the metal wire reasonably, and the wear resistance and the service life of the existing pressure die are required to be improved.

The aluminum-clad steel pressure die disclosed in Chinese patent with publication number CN207343466U has the technical key points that: comprises a pressure die head, a pressure die core and a pressure die sleeve; a groove is formed in the pressure die head; one end of the pressure die sleeve is arranged in the groove of the pressure die head; a pressure die is arranged in the pressure die sleeve; a pressure die core penetrating through the whole pressure die sleeve is embedded in the pressure die sleeve; the pressure mold core is formed by processing at least 3 hard alloys at one time; the pressure die head is made of heat-resistant steel, so that high-temperature deformation can be effectively prevented, the service life is prolonged, and the wear resistance is improved.

In the technical scheme, the pressure die head belongs to an easily-worn part, and the surface of the wire passing hole of the pressure die head is mostly worn in production, so that the whole pressure die is scrapped, and the problem of high use cost exists; therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the pressure die with the replaceable die head, the die head adopts a replaceable structure and adopts standard steel with relatively low material price, so that the use cost of the pressure die is effectively reduced.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a removable pressure mould of die head, includes die sleeve, mold core and die head, die sleeve and die head are standard steel, the mold core mounting hole has been seted up along the axle center to the one end of die sleeve, mold core hot pressing interference is pegged graft in the mold core mounting hole, the die head mounting groove has been seted up along the axle center to the other end of die sleeve, die head demountable installation is in the die head mounting groove, follows the axis of mold core and die head runs through and has seted up the line hole.

Through adopting above-mentioned technical scheme, die sleeve and die head cooperation wrap up the design atress direction of mold core, prevent effectively that the mold core from taking place the embrittlement under the pressure effect, the die head adopts removable the installation in the die sleeve to when the line hole of crossing of die head takes place wearing and tearing, dismantle change the die head can, avoid leading to scrapping of whole pressure mould because of wearing and tearing of vulnerable part, effectively reduce the use cost of this application, and what the die head adopted is the relatively lower standard steel of price, thereby further reduce the use cost of this application.

The utility model is further configured to: and a spacing ring edge is arranged between the die core mounting hole and the die head mounting groove of the die sleeve.

The utility model is further configured to: the die head is provided with a turning edge, and the turning edge is covered on the inner circumferential surface of the edge of the isolating ring and is in butt fit with the end part of the die core.

The utility model is further configured to: the die sleeve is perpendicular to the central axis and is provided with three screw holes at least at equal angles, the screw holes are in threaded fit with stud bolts, the hole bottoms of the screw holes are provided with insertion holes in a penetrating mode, the die head is provided with butt joint holes communicated with the insertion holes, and the circle center of the end portion of each stud bolt is provided with an insertion column which penetrates through the insertion holes and is inserted into the corresponding butt joint holes in an interference mode.

The utility model is further configured to: the die head mounting groove and the die head are both provided with mutually butted positioning key grooves, and the positioning key grooves are connected with positioning keys in a clamping mode.

The utility model is further configured to: the die head is provided with a stress edge, the stress edge is attached to the end face of the die sleeve, the die sleeve is provided with a stick-up rod groove, and the stick-up rod groove extends to the rear end face of the stress edge.

In conclusion, the utility model has the following beneficial effects: when the wire passing hole of the die head is abraded, the die head can be detached and replaced to ensure that the die head can be used normally again, the whole pressure die is prevented from being scrapped due to abrasion of an easily-damaged part, the use cost of the die head is effectively reduced, and the die head is made of standard steel with relatively low price, so that the use cost of the die head is further reduced; the inserting installation depth of the mold core and the mold head is limited by the isolating ring edge, so that the installation accuracy of the mold core and the mold head is effectively ensured; the inner circumferential surface of the edge of the isolating ring is covered by the turned edge, so that the continuity of the wire passing hole is ensured on the premise of avoiding the edge of the isolating ring from being rubbed.

Drawings

FIG. 1 is a schematic view of the overall mechanism of the present application;

FIG. 2 is an exploded view of the present application;

FIG. 3 is an exploded view from another perspective of the present application;

fig. 4 is a partial cross-sectional view of the present application.

Description of the drawings: 1. die sleeve; 2. a mold core; 3. a die head; 4. a mold core mounting hole; 5. a die head mounting groove; 6. a wire passing hole; 7. a spacer ring edge; 8. turning over edges; 9. a screw hole; 10. a stud bolt; 11. a jack; 12. a butt joint hole; 13. inserting a column; 14. a positioning key groove; 15. a positioning key; 16. a stress edge; 17. a warped rod groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a removable pressure mould of die head, as shown in figure 1, figure 2, figure 3, including die sleeve 1, mold core 2 and die head 3, die sleeve 1 and die head 3 are 45Cr standard steel, and mold core 2 is the tungsten steel, and mold core mounting hole 4 has been seted up along the axle center to the one end of die sleeve 1, and mold core 2 hot pressing interference is pegged graft in mold core mounting hole 4, and die head mounting groove 5 has been seted up along the axle center to the other end of die sleeve 1, and die head 3 demountable installation has been seted up in die head mounting groove 5, runs through along the axis of mold core 2 and die head 3 and has seted up wire hole 6.

The application provides a pressure mould, die sleeve 1 wraps up the design atress direction of mold core 2 with the cooperation of die head 3, effectively prevent that mold core 2 from taking place the embrittlement under the pressure effect, die head 3 adopts removable the installing in die sleeve 1 as the position that easily damages, thereby when the line hole 6 emergence wearing and tearing of crossing of die head 3, dismantle and change die head 3 and can make this application normal use again, avoid leading to scrapping of whole pressure mould because of the wearing and tearing of the position that easily damages, effectively reduce the use cost of this application, and what die head 3 adopted is the relatively lower standard steel of price, thereby further reduce the use cost of this application.

In order to ensure the assembly precision of the die sleeve 1, the die core 2 and the die head 3, as shown in fig. 4, a spacer ring edge 7 is formed between the die core mounting hole 4 and the die head mounting groove 5 of the die sleeve 1 in a machining mode, so that the insertion mounting depth of the die core 2 and the die head 3 is limited by the spacer ring edge 7, and the mounting precision of the die core 2 and the die head 3 is effectively ensured.

In practical application, it is found that if the inner diameter of the isolating ring edge 7 is designed to be equal to the wire passing hole 6, the isolating ring edge 7 becomes an easily worn part which cannot be replaced, and if the inner diameter of the isolating ring edge 7 is designed to be smaller than the wire passing hole 6, the continuity of the wire passing hole 6 is affected, so that as shown in fig. 4, the die head 3 is machined and formed with the turned edge 8, the turned edge 8 is covered on the inner circumferential surface of the isolating ring edge 7 and is in butt fit with the end part of the die core 2, the inner circumferential surface of the isolating ring edge 7 is covered by the turned edge 8, and the continuity of the wire passing hole 6 is ensured on the premise of avoiding the isolating ring edge 7 from being rubbed.

The disassembly direction of the die head 3 is the advancing direction of the wire rod, so the die head 3 may be loosened due to the friction force between the die head 3 and the wire rod, for this reason, as shown in fig. 2 and fig. 3, the die sleeve 1 is at least provided with three screw holes 9 at equal angles perpendicular to the central axis, the screw holes 9 are in threaded fit with the stud bolts 10, the hole bottoms of the screw holes 9 are provided with insertion holes 11 in a penetrating manner, the die head 3 is provided with butt-joint holes 12 communicated with the insertion holes 11, the circle centers of the end parts of the stud bolts 10 are machined and formed with insertion posts 13 penetrating through the insertion holes 11 and inserted into the butt-joint holes 12 in an interference manner, after the stud bolts 10 are screwed into the screw holes 9, the insertion posts 13 are simultaneously inserted into the insertion holes 11 and the butt-joint holes 12 in an interference manner, the die head 3 and the die sleeve 1 are reinforced, and the hidden danger that the die head 3 is loosened is effectively eliminated.

In order to facilitate alignment of each abutting hole 12 with the corresponding jack 11, as shown in fig. 2 and 3, the die head mounting groove 5 and the die head 3 are both formed with positioning key grooves 14 which are abutted with each other, and the positioning key grooves 14 are clamped with positioning keys 15, so that the relative angle between the die head 3 and the die sleeve 1 is limited by the cooperation between the positioning keys 15 and the two positioning key grooves 14, and the convenience of alignment of each abutting hole 12 with the corresponding jack 11 is effectively improved.

In order to ensure the coaxiality of the die head 3 and the die sleeve 1, the die head 3 needs to be connected in an interference insertion mode, so the die head 3 can be disassembled with larger drawing force, as shown in fig. 4, the die head 3 is processed and formed with a stress edge 16, the stress edge 16 is attached to the end surface of the die sleeve 1, the die sleeve 1 is provided with a tilting rod groove 17, the tilting rod groove 17 extends to the rear end surface of the stress edge 16, the die head 3 can be tilted by utilizing the lever principle, and convenience is brought to the disassembly of the die head 3.

The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (6)

1. The utility model provides a removable pressure mould of die head, includes die sleeve (1), mold core (2) and die head (3), its characterized in that: die sleeve (1) and die head (3) are standard steel, die core mounting hole (4) have been seted up along the axle center to the one end of die sleeve (1), mold core (2) hot pressing interference is pegged graft in die core mounting hole (4), die head mounting groove (5) have been seted up along the axle center to the other end of die sleeve (1), die head (3) demountable installation is in die head mounting groove (5), follows the axis of mold core (2) and die head (3) runs through and has seted up line hole (6).

2. The die replaceable pressure die of claim 1, wherein: and a spacer ring edge (7) is arranged between the die core mounting hole (4) and the die head mounting groove (5) of the die sleeve (1).

3. The replaceable die pressure die of claim 2, wherein: the die head (3) is provided with a turning edge (8), and the turning edge (8) is covered on the inner circumferential surface of the isolating ring edge (7) and is in butt fit with the end part of the die core (2).

4. The die replaceable pressure die of claim 1, wherein: the mold sleeve is characterized in that three screw holes (9) are formed in the mold sleeve (1) perpendicular to the central axis at least at equal angles, the screw holes (9) are in threaded fit with stud bolts (10), the hole bottoms of the screw holes (9) are penetrated through and provided with insertion holes (11), the mold head (3) is provided with butt joint holes (12) communicated with the insertion holes (11), and the circle centers of the end portions of the stud bolts (10) are provided with insertion columns (13) penetrating through the insertion holes (11) and inserted into the butt joint holes (12) in an interference mode.

5. The replaceable die pressure die of claim 4, wherein: die head mounting groove (5) and die head (3) all are provided with mutual butt joint's location keyway (14), location keyway (14) joint has positioning key (15).

6. The die replaceable pressure die of claim 1, wherein: die head (3) are provided with atress along (16), atress along (16) laminating in the terminal surface of die sleeve (1), stick up pole groove (17) has been seted up in die sleeve (1), stick up the rear end face that pole groove (17) extended to atress along (16).

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