Pick blank hot forging die

Abstract

The utility model discloses a cutting pick blank hot forging die in the related technical field of hot forging dies, which comprises a lower die seat and an upper die seat, a through hole is arranged in the middle of the lower die seat, a lower die body is mounted in the through hole, and matched mounting grooves are symmetrically arranged in the through hole of the lower die seat. Clamping blocks are arranged on the two sides of the lower die body in a matched mode, and a lower die cavity is formed in the center of the lower die body. The lower die body is arranged in the lower die seat, the upper die body is arranged in the upper die seat, the upper die body and the lower die body are both of detachable structural design, when the die bodies are abraded, only the corresponding die bodies need to be replaced independently, the whole die does not need to be replaced, production cost can be effectively reduced, and production efficiency is improved. And the structure of the die body is relatively simple, the material performance can be conveniently improved, the cutting tooth blank hot forging die is of a split type structural design, the large end of the cutting tooth blank is exposed outside after forging forming, and demolding is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field related to hot forging dies, and specifically relates to a hot forging die for a pick blank. Background Art

[0002] Picks are tools used by mining machinery to cut coal and rock. Pick blanks are the core components of coal mining pick processing production line equipment. Their quality and performance directly affect coal mining efficiency and production safety. Picks are generally made of high-strength and high-hardness alloy materials, with a long service life and high cutting efficiency. Pick blanks are usually processed through a forging process. The existing hot forging dies used for pick blanks are mostly one-piece molding structures. Affected by high temperature and high impact force, the hot forging dies will deform after a period of use, affecting the dimensional accuracy of the forged product. Therefore, the mold needs to be replaced, resulting in high forging costs, and the existing hot forging dies are not convenient for product demolding.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a hot forging die for a pick blank. To solve the above technical problem, the basic concept of the technical solution adopted by the utility model is:

[0005] A hot forging die for a pick cutter blank comprises a lower die seat and an upper die seat, a through hole being provided in the middle position of the lower die seat, a lower die body being installed in the through hole, matching installation grooves being symmetrically provided in the through hole of the lower die seat, matching installation blocks being provided on both sides of the lower die body, a lower model cavity being provided at the center position of the lower die body, an upper die body being installed in the upper die installation hole of the upper die seat, a fixed connecting ring being integrally provided on the outer side of the upper die body, a fixed countersunk hole being machined on the fixed connecting ring, a threaded hole being machined on the upper die seat at a position corresponding to the fixed countersunk hole, fixing bolts being correspondingly installed in the fixed countersunk hole and the threaded hole for fixed connection between the upper die body and the upper die seat.

[0006] As a further solution of the utility model: four fixing countersunk holes are evenly distributed along the circumferential direction of the fixed connecting ring, and the fixing bolts are hexagonal countersunk bolts to avoid interference during the forging process.

[0007] As a further solution of the utility model: the matching installation groove is a square groove, and the position and size specifications of the matching installation groove match the matching installation block, which is used to limit the installation of the lower mold body.

[0008] As a further solution of the utility model: the upper mold body and the lower mold body are nitrided to make the upper mold body and the lower mold body have higher surface hardness, wear resistance and corrosion resistance, so as to improve the specific service life of the lower mold body and the upper mold.

[0009] As a further solution of the utility model: a forging impact power rod is fixedly connected to the top of the upper die seat, and a mounting base plate is arranged on the outer side of the bottom of the lower die seat. Fixed mounting holes are evenly distributed on the mounting base plate for fixedly mounting the lower die seat on the forging platform.

[0010] As a further solution of the utility model: an upper mold cavity is arranged in the upper mold body, the upper mold cavity is the large diameter end of the pick blank, and the lower mold cavity is the small diameter end of the pick blank, which is convenient for demoulding the pick blank.

[0011] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0012] The utility model has a lower mold body arranged in the lower mold base, and an upper mold body arranged in the upper mold base. Both the upper mold body and the lower mold body are designed with detachable structures. When the mold body is worn, only the corresponding mold body needs to be replaced separately, and there is no need to replace the entire mold, which can effectively reduce the production cost. In addition, the structure of the mold body is relatively simple, which is convenient for improving the material performance.

[0013] The hot forging die for the pick blank of the utility model is designed as a split structure, and the large end of the pick blank is exposed outside after forging, which is convenient for demoulding.

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] In the figure:

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is the front view of the utility model;

[0019] Figure 3It is the main sectional view of the utility model.

[0020] In the figure: 1. lower die seat; 2. upper die seat; 3. forging impact power rod; 4. lower die body; 5. lower model cavity; 6. matching installation groove; 7. matching installation block; 8. installation base plate; 9. fixed installation hole; 10. upper die body; 11. fixed connecting ring; 12. upper die installation hole; 13. fixing bolt; 14. fixing countersunk hole; 15. upper model cavity.

[0021] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0023] like Figures 1 to 3 As shown, the hot forging die for the pick blank comprises a lower die seat 1 and an upper die seat 2, a through hole is provided in the middle position of the lower die seat 1, a lower die body 4 is installed in the through hole, matching installation grooves 6 are symmetrically provided in the through hole of the lower die seat 1, matching installation blocks 7 are provided on both sides of the lower die body 4, a lower model cavity 5 is provided at the center position of the lower die body 4, an upper die body 10 is installed in the upper die installation hole 12 of the upper die seat 2, a fixed connecting ring 11 is integrally provided on the outer side of the upper die body 10, a fixed countersunk hole 14 is machined on the fixed connecting ring 11, a threaded hole is machined at a position corresponding to the fixed countersunk hole 14 on the upper die seat 2, and fixing bolts 13 are correspondingly installed in the fixed countersunk hole 14 and the threaded hole for fixed connection between the upper die body 10 and the upper die seat 2.

[0024] Among them, four fixing countersunk holes 14 are evenly distributed along the circumferential direction of the fixing connecting ring 11, and the fixing bolts 13 are hexagonal countersunk bolts to avoid interference during the forging process.

[0025] The matching installation groove 6 is a square groove, and the position and size specifications of the matching installation groove 6 match the matching installation block 7, which is used to limit the installation of the lower mold body 4.

[0026] The upper mold body 10 and the lower mold body 4 are subjected to nitriding treatment, so that the upper mold body 10 and the lower mold body 4 have higher surface hardness, wear resistance and corrosion resistance, so as to improve the service life of the lower mold body 4 and the upper mold body 10.

[0027] A forging impact power rod 3 is fixedly connected to the top of the upper die seat 2, and a mounting base plate 8 is arranged on the outer side of the bottom of the lower die seat 1. The mounting base plate 8 is evenly processed with fixed mounting holes 9 for fixing the lower die seat 1 on the forging platform.

[0028] An upper mold cavity 15 is provided in the upper mold body 10. The upper mold cavity 15 is the large diameter end of the pick blank, and the lower mold cavity 5 is the small diameter end of the pick blank, which is convenient for demoulding the pick blank.

[0029] The working principle of the utility model is as follows: when forging the pick blank, the heated column blank is placed at the center of the lower die body 4 of the lower die seat 1, and the forging impact power rod 3 drives the upper die seat 2 and the upper die body 10 to impact downward, and the column blank is hot forged. Under the action of the forging impact, the column blank is filled in the upper mold cavity 15 and the lower mold cavity 5 to become the pick blank;

[0030] The novel structure used in the present invention is reasonably designed and easy to install and use. A lower mold body 4 is arranged in the lower mold seat 1, and an upper mold body 10 is arranged in the upper mold seat 2. Both the upper mold body 10 and the lower mold body 4 are designed with detachable structures. When the mold body is worn, only the corresponding mold body needs to be replaced separately, and there is no need to replace the entire mold, which can effectively reduce the production cost. The specific structure of the mold is relatively simple, which is convenient for improving the material performance. The hot forging mold of the pick blank is a split structure design. After forging, the large end of the pick blank is exposed to the outside, which is convenient for demolding.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A hot forging die for a pick blank, comprising a lower die seat (1) and an upper die seat (2), characterized in that: A through hole is provided in the middle of the lower mold base (1), and a lower mold body (4) is installed in the through hole. Matching installation grooves (6) are symmetrically provided in the through hole of the lower mold base (1). Matching installation blocks (7) are provided on both sides of the lower mold body (4). A lower mold cavity (5) is provided at the center of the lower mold body (4). An upper mold body (10) is installed in the upper mold installation hole (12) of the upper mold base (2). A fixed connecting ring (11) is integrally provided on the outer side of the upper mold body (10). A fixed countersunk hole (14) is machined on the fixed connecting ring (11). A threaded hole is machined at a position on the upper mold base (2) corresponding to the fixed countersunk hole (14). Fixing bolts (13) are correspondingly installed in the fixed countersunk hole (14) and the threaded hole.

2. The hot forging die for pick blank according to claim 1, characterized in that: Four fixing countersunk holes (14) are evenly distributed along the circumferential direction of the fixing connection ring (11), and the fixing bolts (13) are hexagonal countersunk bolts.

3. The hot forging die for pick blank according to claim 2, characterized in that: The matching installation groove (6) is a square groove, and the position and size specifications of the matching installation groove (6) match those of the matching installation block (7).

4. The hot forging die for pick blank according to claim 3, characterized in that: The upper mold body (10) and the lower mold body (4) are subjected to nitriding treatment.

5. The hot forging die for pick blank according to claim 4, characterized in that: The top of the upper die seat (2) is fixedly connected with a forging impact power rod (3), and the outer side of the bottom of the lower die seat (1) is provided with a mounting base plate (8), and the mounting base plate (8) is evenly processed with fixed mounting holes (9).

6. The hot forging die for pick blank according to claim 5, characterized in that: An upper mold cavity (15) is arranged in the upper mold body (10), the upper mold cavity (15) is the large diameter end of the pick blank, and the lower mold cavity (5) is the small diameter end of the pick blank.

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