A pressure prying die structure

Abstract

The present invention provides a pressing and prying die structure, including a punch structure, the punch structure includes an upper die seat, an upper die ring arranged at the lower end of the upper die seat, and two punches symmetrically and detachably arranged on the inner side of the upper die ring, the bottom end of the punch is provided with a protrusion, the outer side of the blank to be punched is sleeved on the inner side of the punch and the inner side of the upper die ring, and the shape of the inner side of the upper die ring is adapted to the shape of the outer side of the blank to be punched; the die structure includes a lower die with 4-8 notches evenly distributed on the upper end, after the two protrusions move in the direction of the two notches, the blank to be punched on the inner side of the protrusion is pressed into a predetermined shape. The pressing and prying die structure of the present invention ensures that the blank to be punched is not deformed during the pressing process; the notches are symmetrically arranged with 4-8 notches, and the prying mouth of the blank to be punched is formed between the notches and the protrusions during pressing, and only two notches are used for each stamping, which reduces the time for changing the die, and the service life of the die is increased by 2-4 times; the punch can be quickly replaced after being worn, which improves production efficiency and reduces processing costs.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, in particular to a pressing and prying die structure. Background Art

[0002] At present, tubeless engineering machinery wheels are safe, reliable, strong, and easy to disassemble and assemble. They are mainly used in large engineering machinery under harsh working conditions. The development of steel production of five-piece tubeless engineering machinery wheel seat rings can reduce cutting allowances, improve material utilization and production efficiency, and reduce production costs; and through the continuous development of new processes and technologies, we will continuously develop a series of new products that can meet the needs of domestic and foreign markets, and promote the continuous development of China's engineering machinery wheel processing technology.

[0003] The existing processing method of the end opening of the seat ring for engineering machinery wheels is that the seat ring is made of thick steel plate, the upper end portion has a large thickness, and is processed by milling, which has low processing efficiency and high processing cost. Summary of the invention

[0004] The object of the present invention is to provide a prying mouth pressing die structure, which is used to solve the problems of low processing efficiency and high processing cost of the prying mouth in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pressing and prying die structure, comprising:

[0007] A punch structure, the punch structure comprising an upper die seat, an upper die ring arranged at the lower end of the upper die seat, and two punches symmetrically and detachably arranged on the inner side of the upper die ring, the bottom end of the punch is provided with a protrusion, the outer side of the blank to be punched is sleeved on the inner side of the punch and the inner side of the upper die ring, and the shape of the inner side of the upper die ring is adapted to the shape of the outer side of the blank to be punched;

[0008] The die structure comprises a lower die with 4-8 notches evenly distributed on the upper end. After the two protrusions move toward the two notches, the blank to be punched on the inner side of the protrusions is pressed into a predetermined shape.

[0009] Wherein, a positioning stop is arranged at the upper end of the lower die.

[0010] Among them, the notch at the upper end of the lower mold includes a recessed area 1 and a recessed area 2 that are integrally transitionally connected, the depth of the recessed area 1 is greater than the depth of the recessed area 2, and the recessed area 1 is located on the outer side of the lower mold.

[0011] Wherein, the die structure further includes a lower die seat, and the upper end of the lower die seat is connected to the lower end of the lower die by screws.

[0012] Wherein, a protrusion is provided at the bottom end of the upper die seat, and the protrusion can be completely inserted into the recessed portion at the upper end of the upper die ring, and the upper die seat is connected to the upper die ring by screws.

[0013] Wherein, a protrusion 1 is provided at the upper end of the lower die seat, and the protrusion 1 can be completely inserted into a recessed portion 1 at the lower end of the lower die.

[0014] Wherein, the upper die ring is connected with the punch screw.

[0015] The beneficial effects of the above technical solution of the present invention are as follows:

[0016] In the above scheme, the shape of the inner side of the upper die ring of the present invention is adapted to the shape of the outer side of the blank to be punched. During the pressing process of the punch structure, the blank to be punched enters the inner side of the upper die ring. During the pressing process, the shape of the blank to be punched does not change, thereby avoiding deformation. There are 4-8 notches symmetrically arranged. During pressing, a prying opening of the blank to be punched is formed between the notches and the protrusions. Only two notches are used for each stamping. During the production process, the time for replacing the mold is reduced, and the service life of the mold is increased. The service life of the mold is increased by 2-4 times. The punch is detachably connected to the upper die ring, so that the punch can be quickly replaced after being worn, thereby improving production efficiency and reducing processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the pressing and prying mouth mold structure of the present invention;

[0018] Figure 2 A cross-sectional view of the lower mold of the pressing and prying mold structure of the present invention;

[0019] Figure 3 A top view of the lower mold of the pressing and prying mold structure of the present invention;

[0020] Figure 4 It is a partial view of the lower mold of the pressing and prying mold structure of the present invention.

[0021] Reference numerals:

[0022] 1. Lower die seat; 2. Lower die; 3. Punch; 4. Upper die ring; 5. Upper die seat; 6. Protrusion; 7. Blank to be punched; 8. Notch; 81. Recessed area one; 82. Recessed area two; 9. Protruding portion; 10. Recessed portion; 11. Protruding portion one; 12. Recessed portion one; 13. Positioning stop. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0024] Aiming at the problems of low processing efficiency and high processing cost of the existing prying mouth, the present invention provides a prying mouth pressing die structure.

[0025] like Figure 1-4 As shown, an embodiment of the present invention provides a pressing and prying mouth mold structure, comprising:

[0026] A punch structure, the punch structure comprising an upper die base 5, an upper die ring 4 arranged at the lower end of the upper die base 5, and two punches 3 symmetrically and detachably arranged on the inner side of the upper die ring 4, the bottom end of the punch 3 is provided with a protrusion 6, the outer side of the blank 7 to be punched is sleeved on the inner side of the punch 3 and the inner side of the upper die ring 4, and the shape of the inner side of the upper die ring 4 is adapted to the shape of the outer side of the blank 7 to be punched;

[0027] The die structure comprises a lower die 2 with 4-8 notches 8 evenly distributed on the upper end. After the two protrusions 6 move toward the two notches 8, the blank 7 to be punched inside the protrusions 6 is pressed into a predetermined shape.

[0028] The thickness dimension of the prying end of the blank 7 to be punched processed by the pressing and prying die structure of the present invention is relatively small, which reduces the cost of raw materials. The shape of the inner side of the upper die ring 4 is adapted to the shape of the outer side of the seat ring. During the pressing process of the punch structure, the seat ring enters the inner side of the upper die ring 4. The shape of the seat ring does not change during the pressing process, thereby avoiding deformation. There are 4-8 notches 8 symmetrically arranged. During pressing, a prying edge of the seat ring is formed between the notches 8 and the protrusions 6. Only two notches 8 are used for each stamping, thereby increasing the service life of the die. The service life of the die is increased by 2-4 times, and the time for replacing the die is reduced during the production process. The punch 3 is detachably connected to the upper die ring 4, so that the punch 3 can be quickly replaced after being worn, thereby improving production efficiency and reducing processing costs.

[0029] like Figure 2-3 As shown, the notch 8 at the upper end of the lower mold 2 includes a recessed area 81 and a recessed area 82 that are integrally transitionally connected, the depth of the recessed area 81 is greater than the depth of the recessed area 82, and the recessed area 81 is located on the outer side of the lower mold 2.

[0030] Wherein, a positioning stop 13 is provided at the upper end of the lower mold 2 .

[0031] The positioning stop 13 of the present invention plays a role in positioning the blank 7 to be punched.

[0032] like Figure 1 As shown, the die structure further includes a lower die base 1, and the upper end of the lower die base 1 is connected to the lower end of the lower die 2 by screws.

[0033] The bottom end of the upper die base 5 is provided with a protrusion 9 , and the protrusion 9 can be completely inserted into the recess 10 at the upper end of the upper die ring 4 , and the upper die base 5 is connected to the upper die ring 4 by screws.

[0034] The upper end of the lower die base 1 is provided with a protruding portion 11 , and the protruding portion 11 can be completely inserted into the recessed portion 12 at the lower end of the lower die 2 .

[0035] Wherein, the upper die ring 4 is connected to the punch 3 by screws.

[0036] In the above scheme, the thickness dimension of the prying end of the blank to be punched 7 processed by the pressing and prying die structure of the present invention is relatively small, which reduces the cost of raw materials. During the pressing process of the punch structure, the blank to be punched 7 enters the inner side of the upper die ring 4. During the pressing process, the shape of the blank to be punched 7 does not change, thereby avoiding deformation. There are 4-8 notches 8 symmetrically arranged. During pressing, a prying mouth of the blank to be punched 7 is formed between the notches 8 and the protrusions 6. Only two notches 8 are used for each stamping, which reduces the time for replacing the die during the production process and increases the service life of the die. The service life of the die is increased by 2-4 times. The punch 3 is detachably connected to the upper die ring 4, so that the punch 3 can be quickly replaced after being worn, thereby improving production efficiency and reducing processing costs.

[0037] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0038] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by the terms "upper", "one end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "provided with" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. Fixed connection can be common technical solutions such as welding, threaded connection and tightening. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pressure prying die structure, characterized in that: include: A punch structure, the punch structure comprising an upper die seat, an upper die ring arranged at the lower end of the upper die seat, and two punches symmetrically and detachably arranged on the inner side of the upper die ring, the bottom end of the punch is provided with a protrusion, the outer side of the blank to be punched is sleeved on the inner side of the punch and the inner side of the upper die ring, and the shape of the inner side of the upper die ring is adapted to the shape of the outer side of the blank to be punched; A concave die structure, the concave die structure comprising a lower die with 4-8 notches evenly distributed on the upper end, after the two protrusions move toward the two notches, the blank to be punched on the inner side of the protrusions is pressed into a predetermined shape; during pressing, a prying opening of the blank to be punched is formed between the notches and the protrusions; The notch at the upper end of the lower mold comprises a recessed area 1 and a recessed area 2 which are integrally transitionally connected, the depth of the recessed area 1 is greater than the depth of the recessed area 2, and the recessed area 1 is located outside the lower mold; The shape of the inner side of the upper die ring is adapted to the shape of the outer side of the blank to be punched. During the pressing process of the punch structure, the blank to be punched enters the inner side of the upper die ring, and the shape of the blank to be punched does not change during the pressing process. The die structure also includes a lower die seat, the upper end of which is provided with a protruding portion 1, and the protruding portion 1 can be completely inserted into a recessed portion 1 at the lower end of the lower die.

2. The pressing and prying mold structure according to claim 1, characterized in that: The upper end of the lower die is provided with a positioning stop.

3. The pressing and prying mold structure according to claim 1, characterized in that: The upper end of the lower die base is connected to the lower end of the lower die through screws.

4. The pressing and prying mold structure according to claim 1, characterized in that: The bottom end of the upper die seat is provided with a protruding portion 2, and the protruding portion 2 can be completely inserted into the recessed portion 2 at the upper end of the upper die ring, and the upper die seat is connected with the upper die ring by screws.

5. The pressing and prying mold structure according to claim 1, characterized in that: The upper die ring is connected with the punch screw.

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