CN216175390U

CN216175390U - Special single crystal wire drawing die of buddha's warrior attendant line

Info

Publication number: CN216175390U
Application number: CN202122653350.6U
Authority: CN
Inventors: 朱琰琛; 陈冬叶
Original assignee: Pinghu Jinping Wire Drawing Die Co ltd
Current assignee: Pinghu Jinping Wire Drawing Die Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-05
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a single crystal wire drawing die special for a diamond wire, relates to a wire drawing die, and aims to solve the hidden trouble that a die core is separated from a sintered body, and the key points of the technical scheme are as follows: the utility model provides a special single crystal wire drawing mould of buddha's warrior attendant line, includes die sleeve, sintered body and single crystal mold core, the die sleeve is provided with open end and undergauge end, open end interference fit with the die cover, the die cover cooperation undergauge end is both ends centre gripping sintered body, the sintered body is both ends centre gripping single crystal mold core. The single crystal wire drawing die special for the diamond wire can effectively eliminate the hidden trouble that the die sleeve, the sintered body and the single crystal die core are separated from each other, and can carry out wrapping type supporting protection on the sintered body to prevent the sintered body from being brittle.

Description

Special single crystal wire drawing die of buddha's warrior attendant line

Technical Field

The utility model relates to a wire drawing die, in particular to a single crystal wire drawing die special for diamond wires.

Background

The diamond wire is a wire saw formed by firmly bonding high-quality diamond abrasive grains to a high-strength steel wire by using metal or resin as a bonding agent.

In the prior art, a high-strength steel wire is usually prepared by a wire drawing process as a bus of a diamond wire, and is limited by the fact that the diamond wire bus has extremely high toughness and strength, and the preparation requires greater traction force, so that the requirement on the tensile anti-falling performance of a wire drawing die is higher.

An anti-drop wire drawing mould of chinese patent publication with publication number CN209597878U, its technical essential is: the die comprises a die sleeve, a die core is arranged in the die sleeve, a powder sintered body is filled between the die core and the die sleeve, a through wire drawing port is formed in the middle of the die core, the powder sintered body and the die sleeve, the die core is made of one of diamond, artificial diamond, PCD diamond, CVD monocrystal diamond or polycrystalline diamond, the outer wall of the die core is inclined, the diameter of the die sleeve in the inlet direction is larger, the diameter of the die sleeve in the outlet direction is smaller, the die sleeve is made of one of medium carbon steel, carbon tool steel or high carbon iron, a groove is formed in the inner wall of an opening of the die sleeve, the contact area of the die sleeve and the powder sintered body is increased, the wrapping capacity of the die sleeve on the powder sintered body is improved, and the phenomenon that the die core falls off from the sintered body is prevented.

The technical scheme improves the tensile anti-dropping property of the wire-drawing die to a certain extent, but in experiments, the connection strength between the die sleeve and the sintered body can only be improved, but the connection strength between the die core and the sintered body cannot be improved, and further, the hidden danger that the die core is separated from the sintered body 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 a single crystal wire drawing die special for a diamond wire, which can effectively eliminate the hidden trouble that a die sleeve, a sintered body and a single crystal die core are separated from each other, and carry out wrapping type supporting protection on the sintered body to prevent the sintered body from brittle fracture.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a special single crystal wire drawing mould of buddha's warrior attendant line, includes die sleeve, sintered body and single crystal mold core, the die sleeve is provided with open end and undergauge end, open end interference fit with the die cover, the die cover cooperation undergauge end is both ends centre gripping sintered body, the sintered body is both ends centre gripping single crystal mold core.

By adopting the technical scheme, the structure of the die sleeve is limited to be the open end and the reduced end, so that convenience is provided for filling sintered body powder and the single crystal die core; the die sleeve is additionally provided with a die cover for clamping the sintered body in cooperation with the reducing end, so that the connection strength of the sintered body and the die sleeve is ensured, and the sintered body is effectively prevented from being separated from the die sleeve; the two ends of the sintered body are limited to clamp the single crystal mold core, so that the connection strength of the sintered body and the single crystal mold core is ensured, and the single crystal mold core is effectively prevented from being separated from the sintered body; because the diameter reducing end and the die cover support the two ends of the sintered body, the sintered body is effectively prevented from being clamped at the position of the single crystal die core and being brittle due to large traction force; to sum up, the single crystal wire drawing die that this application provided can effectively eliminate the hidden danger that die sleeve, sintered body and single crystal mold core break away from each other to carry out parcel formula to the sintered body and support the protection, prevent that it from taking place the embrittlement, combine above technological effect, make this application more be adapted to the application of big traction force when preparing buddha's warrior attendant line generating line.

The utility model is further configured to: the die sleeve is provided with a groove at the included angle of the reducing end, and the sintered body is provided with a convex edge filled in the groove.

The utility model is further configured to: the groove wall of the groove facing the reducing end is obliquely arranged in a manner that the opening is widened.

The utility model is further configured to: the mold cover is provided with an embedding edge, and the embedding edge is embedded in the sintered body.

The utility model is further configured to: the cross-sectional structure of the embedding edge is L-shaped, and the embedding edge and the end face of the die cover are matched to form a clamping groove for accommodating the sintered body.

The utility model is further configured to: and the front end of the outer circumferential surface of the embedding edge is provided with a chamfer.

The utility model is further configured to: the wire drawing hole of the single crystal mold core sequentially comprises an inlet area, a lubricating area, a compression area, a sizing area and an outlet area from an open end to a reducing end, wherein the inlet area, the partial sintered body and the mold cover are of the same circular table top, and the outlet area, the partial sintered body and the reducing end are of the same circular table top.

The utility model is further configured to: the inclination angle of the compression zone is 7-9 degrees; the inclination angle of the sizing area is 0 degree; the length-to-diameter ratio of the sizing zone is 0.25-0.35.

In conclusion, the utility model has the following beneficial effects: the hidden danger that the die sleeve, the sintered body and the single crystal die core are separated from each other is effectively eliminated, the sintered body is protected in a wrapping type supporting mode, the sintered body is prevented from being brittle and cracked, and the application is more suitable for application of large traction force during preparation of a diamond wire bus by combining the technical effects; the axis direction of the sintered body and the die sleeve is limited by the matching between the convex edge and the groove, so that the connection strength of the sintered body and the die sleeve is further improved; the size of the opening end of the groove is increased, and the technical effect of further improving the filling convenience is achieved; the connection amount of the die cover and the sintered body is realized, and the connection strength of the die cover and the sintered body is further improved; the embedding edge is utilized to realize local clamping on the sintered body, so that the connection strength of the die cover and the sintered body is further improved; the precision and the wear resistance of the die are considered by optimizing the layout of the inlet zone, the lubricating zone, the compression zone, the sizing zone and the outlet zone; the size precision of the wire and the surface smoothness are ensured by optimizing the compression angle and the sizing length.

Drawings

FIG. 1 is an overall cross-sectional view of the present application;

FIG. 2 is an enlarged view of the portion A of FIG. 1, mainly showing the connection between the insert edge and the sintered body;

FIG. 3 is a cross-sectional view of a single crystal mold core of the present application.

Description of the drawings: 1. die sleeve; 2. a sintered body; 3. a single crystal mold core; 4. an open end; 5. a reducing end; 6. a mold cover; 7. a trench; 8. a convex edge; 9. an embedding edge; 10. a clamping groove; 11. chamfering; 12. an inlet zone; 13. a lubrication zone; 14. a compression zone; 15. a sizing zone; 16. an exit zone.

Detailed Description

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

A single crystal wire drawing die special for a diamond wire is shown in figure 1 and comprises a die sleeve 1, a sintered body 2 and a single crystal die core 3, wherein the die sleeve 1 is provided with an open end 4 and a reducing end 5, the open end 4 is in interference clamping fit with a die cover 6, the die cover 6 is matched with the reducing end 5 to clamp the sintered body 2 at two ends, and the sintered body 2 is used for clamping the single crystal die core 3 at two ends.

The present application facilitates filling of the powder of the sintered body 2 and the single crystal core 3 by defining the configuration of the die case 1 as an open end 4 and a reduced diameter end 5; the die sleeve 1 is additionally provided with a die cover 6 which is used for clamping the sintered body 2 in cooperation with the reducing end 5, so that the connection strength of the sintered body 2 and the die sleeve 1 is ensured, and the sintered body 2 is effectively prevented from being separated from the die sleeve 1; the two ends of the sintered body 2 are limited to clamp the single crystal mold core 3, so that the connection strength of the sintered body 2 and the single crystal mold core 3 is ensured, and the single crystal mold core 3 is effectively prevented from being separated from the sintered body 2; because the diameter reducing end 5 and the die cover 6 support the two ends of the sintered body 2, the sintered body 2 is effectively prevented from being clamped on the single crystal die core 3 and being brittle due to large traction force; to sum up, the single crystal wire drawing die that this application provided can effectively eliminate the hidden danger that die sleeve 1, sintered body 2 and single crystal mold core 3 break away from each other to carry out parcel formula to sintered body 2 and support the protection, prevent that it from taking place the brittle fracture, combine above technological effect, make this application more be adapted to the application of big traction force when preparing the buddha's warrior attendant line generating line.

In order to further improve the connection strength of the sintered body 2 and the die sleeve 1, as shown in fig. 1, a groove 7 is formed at an included angle of the reducing end 5 of the die sleeve 1 in a machining mode, the sintered body 2 is provided with a convex edge 8 filled in the groove 7, so that the axial limitation of the sintered body 2 and the die sleeve 1 is realized by utilizing the matching between the convex edge 8 and the groove 7, and the connection strength of the sintered body 2 and the die sleeve 1 is further improved; it should be noted here that by defining the grooves 7 at the included corners of the reduced diameter end 5, the grooves 7 are more easily filled with the powder of the sintered body 2 at the time of production than in the prior art.

In order to further improve the convenience of filling the grooves 7 with the sintered body 2 powder more easily, as shown in fig. 1, the groove 7 is inclined so that the wall of the groove toward the reduced end 5 is opened and widened, thereby increasing the size of the opening end of the groove 7 and achieving the technical effect of further improving the convenience of filling.

In order to improve the connection strength between the die cover 6 and the sintered body 2, as shown in fig. 1 and 2, the die cover 6 is formed with an insertion edge 9, and the insertion edge 9 is inserted into the sintered body 2, thereby realizing the connection between the die cover 6 and the sintered body 2 and improving the connection strength between the two.

In order to further improve the connection strength between the die cover 6 and the sintered body 2, as shown in fig. 2, the cross-sectional structure of the embedding edge 9 is L-shaped, and a clamping groove 10 for accommodating the sintered body 2 is formed in cooperation with the end surface of the die cover 6, so that the embedding edge 9 is used for realizing partial clamping of the sintered body 2, and the connection strength between the die cover 6 and the sintered body 2 is further improved.

In the practical processing of the present application, after the sintered body 2 powder is filled into the die case 1, the die cover 6 needs to be pressed into the open end 4 of the die case 1, and in order to facilitate the compression joint of the die cover 6, as shown in fig. 2, the front end of the outer circumferential surface of the embedding edge 9 is machined and formed with a chamfer 11, so that the chamfer 11 is utilized to assist in aligning the die cover 6 with the die case 1, thereby facilitating the compression joint of the die cover 6.

The specific structure of the single crystal mold core 3 is as follows, as shown in fig. 3, a wire drawing hole of the single crystal mold core 3 sequentially comprises an inlet area 12, a lubricating area 13, a compressing area 14, a sizing area 15 and an outlet area 16 from an open end 4 to a reducing end 5, the inlet area 12, a partially sintered body 2 and a mold cover 6 are in the same circular table surface, and the outlet area 16, the partially sintered body 2 and the reducing end 5 are in the same circular table surface, so that the inlet area 12, the lubricating area 13, the compressing area 14, the sizing area 15 and the outlet area 16 are optimally arranged, and the precision and the wear resistance of the mold are both considered.

It should be noted that, as shown in fig. 3, the angle of inclination of the entrance zone 12 is 50 ° to 70 °, the angle of inclination of the compression zone 14 is 7 ° to 9 °, the angle of inclination of the sizing zone 15 is 0 °, the ratio of the length to the diameter of the sizing zone 15 is 0.25 to 0.35, and the angle of the exit zone 16 is 30 ° to 50 °, so as to ensure the dimensional accuracy and the surface smoothness of the wire rod by optimizing the compression angle and the sizing length.

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

1. The utility model provides a special single crystal wire drawing mould of buddha's warrior attendant line, includes die sleeve (1), sintered body (2) and single crystal mold core (3), its characterized in that: the die sleeve (1) is provided with an open end (4) and a reducing end (5), the open end (4) is in interference clamping fit with a die cover (6), the die cover (6) is matched with the reducing end (5) to form a two-end clamping sintered body (2), and the sintered body (2) is a two-end clamping single crystal die core (3).

2. A diamond wire special-purpose single crystal wire-drawing die according to claim 1, characterized in that: the die sleeve (1) is provided with a groove (7) at the included angle of the reducing end (5), and the sintered body (2) is provided with a convex edge (8) filled in the groove (7).

3. A single crystal wire-drawing die special for a diamond wire according to claim 2, characterized in that: the groove (7) is obliquely arranged towards the groove wall of the reducing end (5) in an opening widening way.

4. A diamond wire special-purpose single crystal wire-drawing die according to claim 1, characterized in that: the die cover (6) is provided with an embedding edge (9), and the embedding edge (9) is embedded in the sintered body (2).

5. A diamond wire special-purpose single crystal wire-drawing die according to claim 4, characterized in that: the cross section of the embedding edge (9) is L-shaped, and the embedding edge and the end face of the die cover (6) are matched to form a clamping groove (10) for accommodating the sintered body (2).

6. A diamond wire special-purpose single crystal wire-drawing die according to claim 4, characterized in that: the front end of the outer circumferential surface of the embedding edge (9) is provided with a chamfer (11).

7. A diamond wire special-purpose single crystal wire-drawing die according to claim 1, characterized in that: the wire drawing hole of the single crystal mold core (3) is sequentially provided with an inlet area (12), a lubricating area (13), a compression area (14), a sizing area (15) and an outlet area (16) from an open end (4) to a reducing end (5), the inlet area (12), a part of sintered body (2) and a mold cover (6) are of the same circular table top, and the outlet area (16), the part of sintered body (2) and the reducing end (5) are of the same circular table top.

8. A diamond wire special-purpose single crystal wire-drawing die according to claim 7, characterized in that: the angle of inclination of the compression zone (14) is 7-9 °;

the inclination angle of the sizing area (15) is 0 degree;

the diameter ratio of the length to the diameter of the sizing area (15) is 0.25-0.35.