Split die for duplex tooth multi-directional die forging

Abstract

The utility model belongs to a kind of duplex tooth multidirectional die forging split type mould, mainly used for duplex tooth forging in vehicle gearbox, to improve design fault tolerance, reduce design trial and error cost, shorten maintenance cycle. Including die holder, die core and screw rod, the die core is embedded in the middle part of the die holder, locking assembly for fixing both is equipped between the die holder and die core, the locking assembly includes screw rod and fastener, the screw rod extends to die holder and die core and is installed, and screw rod and fastener are threadedly connected. The die holder and die core of the utility model can be mutually disassembled and installed, and are fixed by locking assembly, improve the fault tolerance and trial and error cost of mould design.

Description

Technical Field

[0001] This utility model belongs to the field of forging die technology, specifically relating to a split-type die forging with double teeth and multi-directional forging. Background Technology

[0002] Integrated molds are now very common. For example, patent document CN220464579U discloses an integrated mold including a forming platform with a lower mold cavity inside. A drive screw is rotatably connected to the inner right surface of the forming platform, and a driven screw is rotatably connected to the inner left surface of the forming platform. A first bevel gear is fixedly sleeved on the outer surface of the drive screw, a second bevel gear is fixedly connected to the outer surface of the rotating shaft, a crank handle is fixedly connected to the outer surface of the second bevel gear, and a top plate is fixedly connected to the top outer surface of several connecting rods. However, existing integrated mold designs have a very low tolerance for error. The overall structure must be determined at once for all details. If there are design oversights, they cannot be corrected by disassembly and adjustment; the entire mold must be scrapped or reworked, resulting in extremely high design trial and error costs. At the same time, the maintenance of integrated molds requires high-precision machining equipment, and the maintenance process is complex and the maintenance cycle is usually very long. Summary of the Invention

[0003] This invention addresses the shortcomings of current integrated mold designs, which have very low error tolerance, extremely high design trial and error costs, and typically very long maintenance cycles. Therefore, a split mold is needed to overcome these difficulties. A double-tooth multi-directional forging split mold has been invented, in which the mold base and mold core can be disassembled and installed together and fixed by locking components, thereby improving the error tolerance and trial and error costs of mold design.

[0004] The above-mentioned technical problem of this utility model is solved by the following technical solution: a double-tooth multi-directional forging split mold, including a mold base, a mold core and a screw, wherein the mold core is installed inside the mold base, and a locking component for fixing the two is provided between the mold base and the mold core, the locking component including a screw and a fastener, the screw extending into the mold base and the mold core, and the screw and the fastener being threadedly connected.

[0005] Preferably, the mold base is in the shape of a cuboid, the mold base has a groove in the middle, and the outer layer of the mold core has an outer arc surface; the bottom of the outer arc surface has a horizontal part.

[0006] By setting a groove that matches the bottom of the mold core, the mold core can be completely embedded in the mold base.

[0007] Preferably, the mold core is semi-cylindrical, with a plurality of second semi-circular countersunk holes and second semi-circular through holes on the outer arc surface; the mold base has an arc groove in the middle, and the arc groove has a second curved surface profile on both sides that matches the tooth profile of the double-toothed mold.

[0008] By setting a second semi-circular countersunk hole and a second semi-circular through hole, it can be used to match the first semi-circular countersunk hole and the first through hole in the mold base groove; by matching the arc groove and the second curved surface contour, it can be used to form a part of the double tooth structure.

[0009] Preferably, the bottom of the groove is provided with a first plane, which is adapted to the outline of the horizontal part; the semi-circular surface of the groove is provided with a plurality of first semi-circular countersunk holes and first semi-circular through holes, the first semi-circular countersunk holes and the second semi-circular countersunk holes cooperate to form a circular countersunk hole, and the first semi-circular through holes and the second semi-circular through holes cooperate to form a circular through hole.

[0010] By setting a first plane at the bottom of the groove, it can be adapted to the horizontal part of the mold core, so that the mold core can be completely embedded in the mold base; secondly, the complete circular through hole and circular countersunk hole formed by the combination of the mold base and the mold core can allow fasteners to pass through the mold base and the mold core, and finally, the two are fixed together with screws.

[0011] Preferably, the center of the mold base is provided with a first curved surface profile that matches the tooth profile of the double-toothed structure.

[0012] By setting a first curved surface profile that matches the tooth shape of the double teeth, and then combining it with a second curved surface profile on the mold core, a complete mold profile is finally synthesized, which is used to process materials to form a complete double tooth structure.

[0013] Preferably, the mold base has a lateral protrusion on its side.

[0014] The lateral protrusions on both sides can be used to secure the pressure plate when connecting the mold base to the equipment, thereby making the molding process more efficient.

[0015] Preferably, the bottom of the mold base is provided with a number of third countersunk holes and a number of third through holes, and screws are installed in the third countersunk holes and third through holes.

[0016] It should be noted that the third countersunk hole is not a standard circular countersunk hole, but a rounded rectangle. When the screw is placed inside the mold base and the fastener is rotated into the screw, the horizontal plane of the third countersunk hole will restrict the screw from rotating with the fastener, which facilitates the fixing of the mold base and the mold core.

[0017] Preferably, the screw includes a mounting part and a columnar part, the mounting part having a threaded hole on its end face, and a fastener is installed in the threaded hole.

[0018] By setting several third countersunk holes and third through holes at the bottom of the mold base, which are aligned with the center of the first semicircular countersunk hole and first semicircular through hole at the top; the screw adapts to the third countersunk hole and third through hole and extends into the mold base; the circular through hole formed by the first semicircular countersunk hole and first semicircular through hole is adapted to the fastener, and the circular countersunk hole formed by the second semicircular countersunk hole and second semicircular through hole is also adapted to the fastener; then the fastener extends and is installed into the mold base, and is threadedly connected to the screw, so that the mold base and the mold core are tightly connected.

[0019] In summary, this utility model has the following advantages compared with the prior art: 1. Firstly, the fundamental logic of the split-type structure design is to modularly disassemble the split mold, breaking down the core functional components of the mold into independent, assembleable units. Each unit is assembled into a complete mold through a precise positioning structure. If any unreasonableness or deviation in cavity dimensions is found later, the corresponding module can be adjusted individually; there is no need to completely overturn the design, thus improving the design error tolerance. 2. Secondly, any oversight may lead to the scrapping of the entire mold; in the processing stage, each module of the split mold can be disassembled and processed separately, which reduces the dependence on a single high-end machine. Some simple modules can even reduce costs through standardized production. 3. During maintenance, if the split mold is scratched or chipped, only the damaged module needs to be disassembled and replaced individually, without reworking the entire mold, greatly shortening the maintenance cycle. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram showing the screw and mold base separated. Figure 3 This is an exploded view of this utility model; Figure 4 This is a three-dimensional diagram of the mold base.

[0021] The diagram is labeled as follows: 1. Mold base; 101. Third countersunk hole; 102. Third through hole; 11. Groove; 12. First through hole; 13. First semi-circular countersunk hole; 14. First semi-circular through hole; 15. First plane; 16. Lateral protrusion; 17. First curved surface profile; 2. Mold core; 21. Arc groove; 22. Second curved surface profile; 23. Second semi-circular countersunk hole; 24. Second semi-circular through hole; 25. Horizontal part; 26. Outer arc surface; 3. Screw; 31. Columnar part; 32. Mounting part; 311. Threaded hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 4As shown, this embodiment discloses a double-tooth multi-directional forging split mold, including a mold base 1, a mold core 2 and a screw 3. The mold base 1 is embedded with the mold core 2. A locking component 4 for fixing the two is provided between the mold base 1 and the mold core 2. The locking component 4 includes a screw 3 and a fastener 5. The screw 3 extends into the mold base 1 and the mold core 2, and the screw 3 and the fastener 5 are threadedly connected.

[0024] The mold base 1 is generally rectangular, and a groove 11 is provided in the middle of the mold base 1. The outer layer of the mold core 2 is provided with an outer arc surface 26; the bottom of the outer arc surface 26 is provided with a horizontal part 25.

[0025] The mold core 2 is semi-cylindrical, and its outer arc surface 26 is provided with a plurality of second semi-circular countersunk holes 23 and second semi-circular through holes 24. The middle part of the mold base 1 is provided with an arc groove 21, and the two sides of the arc groove 21 are provided with second curved surface contours 22 that are adapted to the tooth shape of the double-toothed mold. When this mold is needed, the mold core 2 is placed in the groove 11 of the semi-circular arc surface in the middle part of the mold base 1. Since the outer arc surface 26 of the mold core 2 is adapted to the groove 11 of the semi-circular arc surface in the middle part of the mold base 1, the mold base 1 and the mold core 2 can be fitted together.

[0026] The bottom of the groove 11 is provided with a first plane 15, which is adapted to the outer contour of the horizontal part 25. The semi-circular surface of the groove 11 is provided with a plurality of first semi-circular countersunk holes 13 and first semi-circular through holes 14. The first semi-circular countersunk holes 13 and second semi-circular countersunk holes 23 cooperate to form a circular countersunk hole, and the first semi-circular through holes 14 and second semi-circular through holes 24 cooperate to form a circular through hole. Moreover, the bottom of the mold base 1 is provided with a plurality of third countersunk holes 101 and a plurality of third through holes 102. Screws 3 are installed in the third countersunk holes 101 and third through holes 102. In this way, the countersunk holes and through holes formed when the mold base 1 and the mold core 2 are attached correspond to the countersunk holes and through holes at the bottom of the mold base 1. Fasteners 5 and screws 3 are respectively inserted to fix the mold base 1 and the mold core 2. The middle part of the mold base 1 is provided with a first curved surface contour 17 adapted to the tooth shape of the double tooth, forming a complete curved surface contour with the mold core 2, which is convenient for machining.

[0027] The screw 3 includes a mounting portion 32 and a columnar portion 31. The mounting portion 32 has a threaded hole 311 on its end face, and a fastener 5 is installed in the threaded hole 311. The profile of the mounting portion 32 is larger than that of the columnar portion 31 to prevent the screw from being pulled out under force during installation. The mold base 1 has transverse protrusions 16 on its side. The transverse protrusions 16 on both sides can be used to fasten the pressure plate when the mold base is connected to the equipment, thereby making the molding process more efficient. It should be noted that the mounting portion 32 is not a complete circle. Limiting planes are provided on both sides to prevent the screw 3 from rotating under force when the fastener 5 is tightened.

[0028] The specific operation process of this embodiment is as follows: When processing the mold, the mold core 2 needs to be placed into the groove 11 of the semi-circular arc surface of the mold base 1; when the mold core 2 is fully embedded in the mold base 2, the screw 3 is then placed into the third countersunk hole 101 and the third through hole 102 at the bottom of the mold base 1; then the fastener 5 is placed into the formed circular countersunk hole and circular through hole, and then the fastener 5 is fixed; however, the mounting part 32 of the screw 3 is provided with a limiting plane on its outer periphery. When the fastener 5 is rotated, the limiting plane will restrict the rotation of the screw 3, so that the fastener 5 can connect to the screw 3; thereby fixing the mold base 1 and the mold core 2, achieving the practical purpose of this utility model.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A split-type die forging mold with double teeth, comprising a die base (1), a die core (2), and a screw (3), characterized in that, The mold base (1) is embedded with a mold core (2). A locking component (4) for fixing the two is provided between the mold base (1) and the mold core (2). The locking component (4) includes a screw (3) and a fastener (5). The screw (3) extends into the mold base (1) and the mold core (2). The screw (3) and the fastener (5) are threaded together.

2. The double-tooth multi-directional forging split mold according to claim 1, characterized in that, The mold base (1) is in the shape of a cuboid. The mold base (1) has a groove (11) in the middle. The outer layer of the mold core (2) has an outer arc surface (26). The bottom of the outer arc surface (26) has a horizontal part (25).

3. The double-tooth multi-directional forging split mold according to claim 2, characterized in that, The mold core (2) is semi-cylindrical, and a number of second semi-circular countersunk holes (23) and second semi-circular through holes (24) are provided on the outer arc surface (26); the mold base (1) is provided with an arc groove (21) in the middle, and the arc groove (21) is provided with a second curved surface profile (22) on both sides that is adapted to the tooth shape of the double teeth.

4. A split-type die forging mold with double teeth according to claim 2, characterized in that, The bottom of the groove (11) is provided with a first plane (15), which is adapted to the outline of the horizontal part (25); the semi-circular surface of the groove (11) is provided with a plurality of first semi-circular countersunk holes (13) and first semi-circular through holes (14), the first semi-circular countersunk holes (13) and the second semi-circular countersunk holes (23) cooperate to form a circular countersunk hole, and the first semi-circular through holes (14) and the second semi-circular through holes (24) cooperate to form a circular through hole.

5. A split-type die forging mold with double teeth according to claim 1, characterized in that, The mold base (1) has a first curved surface profile (17) in the middle that is adapted to the tooth profile of the double teeth.

6. The double-tooth multi-directional forging split mold according to claim 1, characterized in that, The mold base (1) has a transverse protrusion (16) on its side.

7. A split-type die forging mold with double teeth according to claim 1, characterized in that, The bottom of the mold base (1) is provided with several third countersunk holes (101) and several third through holes (102), and screws (3) are installed in the third countersunk holes (101) and third through holes (102).

8. A split-type die forging mold with double teeth according to claim 7, characterized in that, The screw (3) includes a mounting part (32) and a columnar part (31). The mounting part (32) has a threaded hole (311) on its end face, and a fastener (5) is installed in the threaded hole (311).

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