Ratchet wrench triangular pressing die with replaceable loose core

Abstract

The utility model discloses a ratchet wrench triangular pressing die with a replaceable loose core, which comprises a lower die and an upper die, the bottom surface of the upper die is pressed against the top surface of the lower die, and the upper die is fixedly connected with the top surface of the lower die through a plurality of fixing bolts; a triangular concave hole extending downwards is formed in the middle of the top face of the upper die, the triangular concave hole and a die core mounting hole extending upwards are formed in the middle of the bottom face of the upper die, the die core is inserted into the die core mounting hole in a sleeved mode and matched with the die core mounting hole, the bottom face of the die core abuts against the top face of the lower die in a pressing mode, and a triangular forming part is formed in the middle of the top face of the die core. The top of the triangular forming part extends out of the top surface of the upper die. The die core, the upper die and the lower die are fixed as detachable structures, when the triangular forming part at the top of the die core is damaged, abraded or deformed, only the die core needs to be replaced, the replacement cost is low, and the using effect is good.

Description

Technical fields:

[0001] This utility model relates to the field of fastener tool processing equipment technology, and more specifically to a replaceable core-pulling ratchet wrench pressing triangular mold. Background technology:

[0002] In existing ratchet wrenches, a triangular groove is formed on the wall of the housing at the lever of the reversing device, so that the lever can rotate in the triangular groove;

[0003] The existing method involves pressing the ratchet wrench into shape using a triangular module, such as... Figure 1 As shown, this is the structure of a ratchet wrench after it has been pressed and formed, as follows: Figure 2 As shown, this is an existing molding mold, which directly molds triangular protrusions on the mold block and forms the shape by pressing the triangular protrusions together. However, after prolonged use, the triangular protrusions may deform or even be damaged, requiring the entire mold to be replaced, which is costly. Utility Model Content:

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a replaceable core ratchet wrench pressing triangular mold. It fixes the core, upper mold, and lower mold as a detachable structure. When the triangular forming part at the top of the core is damaged, worn, or deformed, only the core needs to be replaced. Its replacement cost is low and its use effect is good.

[0005] The solution of this utility model to the aforementioned technical problem is:

[0006] A replaceable core ratchet wrench pressing triangular die includes a lower die and an upper die, wherein the bottom surface of the upper die presses against the top surface of the lower die and is fixedly connected by multiple fixing bolts;

[0007] The upper mold has a downward-extending triangular recess formed in the center of its top surface. The triangular recess and the upper mold have an upward-extending mold core mounting hole formed in the center of its bottom surface. The mold core is inserted into the mold core mounting hole and mates with it. The bottom surface of the mold core presses against the top surface of the lower mold. The top surface of the mold core has a triangular forming part formed in the center. The triangular forming part is inserted into the triangular recess, and its top extends out of the top surface of the upper mold.

[0008] The mold core mounting hole is a stepped through hole, with a large-diameter hole section at the bottom and a small-diameter hole section at the top. The bottom end of the triangular concave hole communicates with the upper part of the mold core mounting hole.

[0009] The top inner wall of the triangular concave hole is formed with a triangular frame-shaped groove, the triangular protective sleeve is inserted into the triangular concave hole, the outer wall of the protective sleeve is pressed against the inner wall of the triangular concave hole, and the top outer wall of the protective sleeve is formed with a radially extending edge, which is nested in the triangular frame-shaped groove.

[0010] The bottom surface of the radially extending edge presses against the bottom surface of the triangular frame-shaped groove, and the outer wall of the radially extending edge is in close contact with the inner wall of the triangular frame-shaped groove.

[0011] The triangular forming part is inserted into the protective sleeve, with its outer side wall tightly attached to the inner side wall of the protective sleeve, and the top of the triangular forming part protruding from the top surface of the protective sleeve.

[0012] The outstanding effect of this utility model is:

[0013] Compared with existing technologies, it fixes the mold core, upper mold, and lower mold as a detachable structure. When the triangular forming part at the top of the mold core is damaged, worn, or deformed, only the mold core needs to be replaced. Its replacement cost is low and its performance is good. Attached image description:

[0014] Figure 1 This is a schematic diagram of the ratchet wrench after it has been pressed and formed.

[0015] Figure 2 This is a schematic diagram of the mold structure currently in use;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model;

[0017] Figure 4 This is an exploded view of the present invention;

[0018] Figure 5 This is a partial sectional view of the present invention;

[0019] Figure 6 This is another partial sectional view of the present invention. Detailed implementation method:

[0020] For example, see below. Figures 3 to 6 As shown, a replaceable core ratchet wrench pressing triangular mold includes a lower mold 10 and an upper mold 20. The bottom surface of the upper mold 20 presses against the top surface of the lower mold 10 and is fixedly connected by multiple fixing bolts 1.

[0021] The upper mold 20 has a downwardly extending triangular recess 21 formed in the center of its top surface. The triangular recess 21 communicates with and corresponds to the upwardly extending mold core mounting hole 22 formed in the center of the bottom surface of the upper mold 20. The mold core 30 is inserted into the mold core mounting hole 22 and cooperates with the mold core mounting hole 22. The bottom surface of the mold core 30 presses against the top surface of the lower mold 10. The top surface of the mold core 30 has a triangular forming part 31 formed in the center of its top surface. The triangular forming part 31 is inserted into the triangular recess 21, and its top extends out of the top surface of the upper mold 20.

[0022] Furthermore, the mold core mounting hole 22 is a stepped through hole, with a large-diameter hole section at the bottom and a small-diameter hole section at the top. The bottom end of the triangular concave hole 21 communicates with the upper part of the mold core mounting hole 22.

[0023] The mold core 30 is a stepped column with a large-diameter section at the bottom and a small-diameter section at the top. The lower part of the mold core 30 is inserted into the lower section of the mold core mounting hole 22, and its outer side wall is in close contact with the inner side wall of the lower section of the mold core mounting hole 22. The top surface of the lower edge of the mold core 30 presses against the top surface of the lower section of the mold core mounting hole 22. The upper part of the mold core 30 is inserted into the upper section of the mold core mounting hole 22, and its outer side wall is in close contact with the inner side wall of the upper section of the mold core mounting hole 22. The top surface of the upper edge of the mold core 30 presses against the top surface of the upper section of the mold core mounting hole 22.

[0024] Furthermore, a triangular frame-shaped groove 23 is formed on the top inner wall of the triangular recess 21, and a triangular protective sleeve 40 is inserted into the triangular recess 21. The outer wall of the protective sleeve 40 is pressed against the inner wall of the triangular recess 21. A radially extending edge 41 is formed on the top outer wall of the protective sleeve 40, and the radially extending edge 41 is nested in the triangular frame-shaped groove 23.

[0025] The bottom surface of the radially extending edge 41 presses against the bottom surface of the triangular frame-shaped groove 23, and the outer side wall of the radially extending edge 41 is in close contact with the inner side wall of the triangular frame-shaped groove 23.

[0026] The triangular forming part 31 is inserted into the protective sleeve 40, with its outer side wall tightly attached to the inner side wall of the protective sleeve 40, and the top of the triangular forming part 31 extending out of the top surface of the protective sleeve 40.

[0027] During manufacturing, the hardness of the material used for the mold core 30 needs to be greater than that of the protective sleeve 40, and the hardness of the upper mold 20 also needs to be greater than that of the protective sleeve 40.

[0028] This structure ensures that when the ratchet wrench housing is stamped, the triangular forming part 31 of the die core 30 will not impact, collide or bump against the side wall of the triangular recess 21 of the upper die 20, making it less prone to damage. This prevents the triangular recess 21 from becoming larger or damaged. Only the die core 30 and the protective sleeve 40 need to be replaced, reducing replacement costs and improving performance.

[0029] Furthermore, the front end of the protective sleeve 40, the front end of the triangular forming part 31, and the front end of the triangular concave hole 21 are all arc-shaped walls.

[0030] Furthermore, vertical threaded through holes 25 are formed at the four corners of the upper mold 20, and vertical through holes 15 are formed at the four corners of the lower mold 10. An annular groove is formed on the inner side wall of the bottom end of the vertical through hole 15. The rotating part of the fixing bolt 1 is inserted into the annular groove, and the screw part of the fixing bolt 1 is inserted into the corresponding vertical through hole 15 and screwed into the corresponding vertical threaded through hole 25. The top surface of the rotating part of the fixing bolt 1 presses against the top surface of the annular groove.

[0031] The upper mold 20 and the lower mold 10 are installed and disassembled using fixing bolt 1, which allows the mold core 30 to be separated and is convenient for replacement.

[0032] Finally, the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model, and the patent protection scope of the present utility model should be defined by the claims.

Claims

1. A replaceable core-pulling ratchet wrench pressing triangular die, comprising a lower die (10) and an upper die (20), characterized in that: The bottom surface of the upper mold (20) presses against the top surface of the lower mold (10) and is fixedly connected by multiple fixing bolts (1); The upper mold (20) has a downwardly extending triangular recess (21) formed in the middle of its top surface. The triangular recess (21) communicates with the upwardly extending mold core mounting hole (22) formed in the middle of the bottom surface of the upper mold (20). The mold core (30) is inserted into the mold core mounting hole (22) and cooperates with the mold core mounting hole (22). The bottom surface of the mold core (30) presses against the top surface of the lower mold (10). The top surface of the mold core (30) has a triangular forming part (31) formed in the middle of its top surface. The triangular forming part (31) is inserted into the triangular recess (21), and its top extends out of the top surface of the upper mold (20).

2. The replaceable core-pulling ratchet wrench pressing triangular die according to claim 1, characterized in that: The mold core mounting hole (22) is a stepped through hole, with a large diameter hole section at the bottom and a small diameter hole section at the top. The bottom end of the triangular concave hole (21) is connected to the top of the mold core mounting hole (22).

3. The replaceable core-pulling ratchet wrench pressing triangular die according to claim 1, characterized in that: The top inner wall of the triangular recess (21) is formed with a triangular frame-shaped groove (23), the triangular protective sleeve (40) is inserted in the triangular recess (21), the outer wall of the protective sleeve (40) is pressed against the inner wall of the triangular recess (21), the top outer wall of the protective sleeve (40) is formed with a radially extending edge (41), and the radially extending edge (41) is nested in the triangular frame-shaped groove (23).

4. The replaceable core-pulling ratchet wrench pressing triangular die according to claim 3, characterized in that: The bottom surface of the radially extending edge (41) presses against the bottom surface of the triangular frame-shaped groove (23), and the outer side wall of the radially extending edge (41) is in close contact with the inner side wall of the triangular frame-shaped groove (23).

5. The replaceable core-pulling ratchet wrench pressing triangular die according to claim 2, characterized in that: The mold core (30) is a stepped column with a large diameter section at the bottom and a small diameter section at the top. The lower part of the mold core (30) is inserted into the lower section of the mold core mounting hole (22), and its outer side wall is in close contact with the inner side wall of the lower section of the mold core mounting hole (22). The top surface of the lower edge of the mold core (30) presses against the top surface of the lower section of the mold core mounting hole (22). The upper part of the mold core (30) is inserted into the upper section of the mold core mounting hole (22), and its outer side wall is in close contact with the inner side wall of the upper section of the mold core mounting hole (22). The top surface of the upper edge of the mold core (30) presses against the top surface of the upper section of the mold core mounting hole (22).

6. The replaceable core-pulling ratchet wrench pressing triangular die according to claim 3, characterized in that: The triangular forming part (31) is inserted into the protective sleeve (40), with its outer side wall closely attached to the inner side wall of the protective sleeve (40), and the top of the triangular forming part (31) protruding from the top surface of the protective sleeve (40).

7. The replaceable core-pulling ratchet wrench pressing triangular die according to claim 6, characterized in that: The front end of the protective sleeve (40), the front end of the triangular forming part (31), and the front end of the triangular concave hole (21) are all arc-shaped walls.

8. The replaceable core-pulling ratchet wrench pressing triangular die according to claim 1, characterized in that: Vertical threaded through holes (25) are formed at the four corners of the upper mold (20), and vertical through holes (15) are formed at the four corners of the lower mold (10). An annular groove is formed on the inner side wall of the bottom end of the vertical through hole (15). The rotating part of the fixing bolt (1) is inserted into the annular groove, and the screw part of the fixing bolt (1) is inserted into the corresponding vertical through hole (15) and screwed into the corresponding vertical threaded through hole (25). The top surface of the rotating part of the fixing bolt (1) presses against the top surface of the annular groove.

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