CN220760759U

CN220760759U - Multistation stamping die

Info

Publication number: CN220760759U
Application number: CN202321251148.3U
Authority: CN
Inventors: 卓合东
Original assignee: Dongguan Donglong Hardware Mold Machinery Co ltd
Current assignee: Dongguan Donglong Hardware Mold Machinery Co ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2024-04-12
Anticipated expiration: 2033-05-23

Abstract

The utility model discloses a multi-station stamping die, which comprises an upper die and a lower die, wherein the upper die comprises a first template and a second template, and a first step through hole, a second step through hole and a third step through hole are formed in the second template; a first step column body is sleeved in the first step through hole, and a plurality of punching die heads are formed in the first step column body; a second step column body is sleeved in the second step through hole, and a trimming die head is formed in the second step column body; a third step column body is arranged in the third step through hole, and a grooving die head is formed at the lower end of the third step column body; a rectangular channel is formed on the upper bottom surface of the lower die, and a first die hole, a second die hole and a third die hole are formed on the rectangular channel. The utility model is provided with a plurality of stamping stations, can stamp a plurality of shapes at one time, has no interference and strong independence, and can effectively improve stamping efficiency and stamping quality.

Description

Multistation stamping die

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a multi-station stamping die.

Background

A stamping die is a special technological device for processing a material (metal or nonmetal) into a part (or a semi-finished product) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die). Stamping is a press working method in which a material is pressed at room temperature by a die attached to a press to be separated or plastically deformed, thereby obtaining a desired part. The existing stamping die only has a single station, and one-time stamping can only form a shape on a workpiece, so that the stamping efficiency is low.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a multi-station stamping die which is provided with a plurality of stamping stations, can stamp a plurality of shapes at one time, has strong independence and can effectively improve stamping efficiency and stamping quality, and the plurality of stamping stations are not interfered with each other.

The scheme for solving the technical problems is as follows:

the multi-station stamping die comprises an upper die and a lower die, wherein the upper die comprises a first die plate and a second die plate which are arranged up and down and are fixedly connected, and a first step through hole, a second step through hole and a third step through hole are formed in the second die plate;

a first step column body matched with the first step through hole is sleeved in the first step through hole, and a plurality of punching die heads are formed at the lower end of the first step column body; the second step through hole is sleeved with a second step column body matched with the second step through hole, and two trimming die heads which are arranged symmetrically in front-back direction are formed at the lower end of the second step column body; a third step column body matched with the third step through hole is sleeved in the third step through hole, and two grooving dies arranged front and back are formed at the lower end of the third step column body; a plurality of disc springs are respectively clamped among the upper end of the first step cylinder, the upper end of the second step cylinder and the upper end of the third step cylinder and the first template;

rectangular channels arranged in the left-right direction are formed in the upper bottom surface of the lower die, and a first die hole corresponding to the punching die head, a second die hole corresponding to the trimming die head and a third die hole corresponding to the grooving die head are formed in the rectangular channels.

A group of disc springs corresponding to the first step cylinder, a group of disc springs corresponding to the second step cylinder and a group of step springs on the third step cylinder are respectively provided with an elastic adjusting part;

the elastic adjusting part comprises an integrally formed stud and a pressing plate, the stud is pressed in a corresponding threaded through hole on the first template, and the pressing plate is pressed on the uppermost disc spring of a corresponding group of disc springs;

and a hexagonal counter bore is formed at the upper end of the stud.

The elastic adjusting part also comprises a spring sleeve rod arranged at the lower end of the pressing plate, and the spring sleeve rod is inserted and sleeved on a corresponding group of disc springs.

Each group of disc springs are stacked in a butt-joint combination.

And a plurality of guide rods are fixed on the second template, and the lower ends of the guide rods are inserted and sleeved in the guide holes of the lower die.

The utility model has the outstanding effects that: compared with the prior art, the stamping machine is provided with a plurality of stamping stations, a plurality of shapes can be finished by one-time stamping, and the stamping stations are not interfered with each other and have strong independence, so that the stamping efficiency and the stamping quality can be effectively improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1 taken about A-A;

FIG. 3 is a cross-sectional view of FIG. 1 with respect to B-B;

fig. 4 is a schematic diagram showing a state process of a workpiece punched by the present utility model.

Detailed Description

As shown in fig. 1 to 4, an embodiment, a multi-station stamping die, includes an upper die 1 and a lower die 2, where the upper die 1 includes a first die plate 11 and a second die plate 12 that are disposed up and down and are fixedly connected, and a first step through hole 121, a second step through hole 122 and a third step through hole 123 are formed on the second die plate 12;

a first step column body 13 matched with the first step through hole 121 is sleeved in the first step through hole, and a plurality of punching dies 14 are formed at the lower end of the first step column body 13; the second step through hole 122 is sleeved with a second step column body 15 matched with the second step through hole, and two trimming dies 16 which are symmetrically arranged front and back are formed at the lower end of the second step column body 15; a third step column 17 matched with the third step through hole 123 is sleeved in the third step through hole, and two front-back grooving dies 18 are formed at the lower end of the third step column 17; a plurality of disc springs 3 are respectively clamped between the upper end of the first step cylinder 13, the upper end of the second step cylinder 15 and the upper end of the third step cylinder 17 and the first template 11;

rectangular grooves 21 are formed in the upper bottom surface of the lower die 2, and first holes 22 corresponding to the punching dies 14, second holes 23 corresponding to the trimming dies 16, and third holes 24 corresponding to the grooving dies 18 are formed in the rectangular grooves 21.

Further, a set of disc springs 3 corresponding to the first step cylinder 13, a set of disc springs 3 corresponding to the second step cylinder 15, and a set of step springs 3 on the third step cylinder 15 are respectively provided with an elastic adjusting part 4;

the elastic adjusting part 4 comprises a stud 41 and a pressing plate 42 which are integrally formed, wherein the stud 41 is pressed in a corresponding threaded through hole 111 on the first template 11, and the pressing plate 42 is pressed on the uppermost disc spring 3 of a corresponding group of disc springs 3;

the upper end of the stud 41 is formed with a hexagonal counterbore 43.

Further, the elastic adjusting portion 4 further includes a spring sleeve 44 disposed at a lower end of the pressing plate 42, and the spring sleeve 44 is inserted over a corresponding set of disc springs 3.

Further, each set of disc springs 3 is stacked in combination.

Further, a plurality of guide rods 19 are fixed on the second mold plate 12, and the lower ends of the guide rods 19 are inserted into the guide holes of the lower mold 2.

Working principle: first, the work 9 is placed in the rectangular channel 21;

secondly, the press with the outer diameter drives the first template 11 to move downwards, the first template 11 drives the second template 12 to move downwards, the second template drives the plurality of punching dies 14, trimming dies 16 and grooving dies 18 to move downwards through the first step cylinder, the second step cylinder and the third step cylinder respectively, the punching dies 14 punch through holes 91 on a workpiece 9, the trimming dies 16 punch boundaries 92 on the workpiece, and the grooving dies 18 punch through grooves 93 on the workpiece; because the disc springs are arranged between the first step cylinder, the second step cylinder and the third step cylinder and the first template 11 respectively, the height positions of the first step cylinder, the second step cylinder and the third step cylinder can be slightly changed by deformation of the disc springs, so that the relative independence of the punching die heads 14, the trimming die heads 16 and the grooving die heads 18 can be effectively ensured, and the punching work can be independently completed on the workpiece; the compression amount of the disc spring can be changed by rotating the elastic adjusting part 4 to enable the elastic adjusting part to move upwards or downwards, so that the elasticity is changed;

thirdly, the press drives the first template to move upwards for resetting, and then the workpiece is pushed to the right by one station under the action of an external feeding device.

Finally, the above embodiments are only for illustrating the utility model, not for limiting it, and various changes and modifications can be made by one skilled in the relevant art without departing from the spirit and scope of the utility model, so that all equivalent technical solutions are also within the scope of the utility model, which is defined by the claims.

Claims

1. The utility model provides a multistation stamping die, includes mould (1) and lower mould (2), its characterized in that: the upper die (1) comprises a first die plate (11) and a second die plate (12) which are arranged up and down and are fixedly connected, and a first step through hole (121), a second step through hole (122) and a third step through hole (123) are formed in the second die plate (12);

a first step column body (13) matched with the first step through hole (121) is sleeved in the first step through hole, and a plurality of punching die heads (14) are formed at the lower end of the first step column body (13); a second step column body (15) matched with the second step through hole (122) is sleeved in the second step through hole, and two trimming dies (16) which are arranged symmetrically in front-back are formed at the lower end of the second step column body (15); a third step column body (17) matched with the third step through hole (123) is sleeved in the third step through hole, and two front-back grooving dies (18) are formed at the lower end of the third step column body (17); a plurality of disc springs (3) are respectively clamped among the upper end of the first step cylinder (13), the upper end of the second step cylinder (15) and the upper end of the third step cylinder (17) and the first template (11);

rectangular channels (21) arranged in the left-right direction are formed on the upper bottom surface of the lower die (2), and first die holes (22) corresponding to the punching die heads (14), second die holes (23) corresponding to the trimming die heads (16) and third die holes (24) corresponding to the grooving die heads (18) are formed on the rectangular channels (21).

2. A multi-station stamping die as defined in claim 1, wherein: a group of disc springs (3) corresponding to the first step column (13), a group of disc springs (3) corresponding to the second step column (15) and a group of step springs (3) on the third step column (17) are respectively provided with an elastic adjusting part (4);

the elastic adjusting part (4) comprises a stud (41) and a pressing plate (42) which are integrally formed, the stud (41) is pressed in a corresponding threaded through hole (111) on the first template (11), and the pressing plate (42) is pressed on the uppermost disc spring (3) of a corresponding group of disc springs (3);

a hexagonal counter bore (43) is formed at the upper end of the stud (41).

3. A multi-station stamping die as defined in claim 2, wherein: the elastic adjusting part (4) further comprises a spring sleeve rod (44) arranged at the lower end of the pressing plate (42), and the spring sleeve rod (44) is inserted and sleeved on the corresponding group of disc springs (3).

4. A multi-station stamping die as defined in claim 3, wherein: each group of disc springs (3) is stacked in a butt joint mode.

5. A multi-station stamping die as defined in claim 1, wherein: a plurality of guide rods (19) are fixed on the second template (12), and the lower ends of the guide rods (19) are inserted and sleeved in the guide holes of the lower die (2).