Blanking structure

Abstract

The utility model relates to the technical field of stamping dies, and discloses a blanking structure, which is used for blanking a part under the condition that the part interferes with a blanking path, and comprises a lower die, an upper die and a lower die, the lower die comprises a lower die holder, and a blanking female die and a return stroke elastic execution piece which are arranged on the lower die holder; the upper die comprises an upper die base and a blanking male die arranged on the upper die base, and the upper die base can be in contact with the return stroke elastic element but not connected with the return stroke elastic element; the punching machine is provided with an upper sliding block capable of moving up and down, when the upper sliding block moves downwards, the upper sliding block can make contact with the upper die base and drive the upper die to move downwards, and the upper sliding block is not connected with the upper die base; according to the utility model, the connection between the upper die and a slide block on punch equipment is canceled, the return elastic execution piece is arranged on the lower die, the return elastic execution piece is used as a return power source of the upper die and drives the upper die to move upwards, and the stroke of the return elastic execution piece is the stroke of the upper die; and the blanking male die is ensured not to interfere with the part.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, and more specifically, to a blanking structure. Background Art

[0002] Blanking is an essential process in the production of stamped parts. The structure of a blanking die is divided into an upper die part (upper die base, upper pressure plate, blanking punch) and a lower die part (blanking die, lower die base); the upper die part is installed on the upper slider of a stamping equipment and reciprocates with the upper slider, while the lower die part is installed on the workbench of the stamping equipment and remains stationary; the blanking direction is generally the same as the movement direction of the upper slider of the stamping equipment; that is, it is required that during the upward movement of the upper die part with the upper slider of the stamping equipment, there should be no interference with the lower die part and the part itself; currently, for some parts, after forming, the self-structure of the part enters the blanking path, resulting in interference between the part and the upper die part. Content of the Utility Model

[0003] The purpose of the utility model is to provide a blanking structure to solve the problems raised in the above background art.

[0004] To solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0005] A blanking structure for blanking a part when there is interference between the part itself and the blanking path, comprising:

[0006] A lower die 100, the lower die 100 includes a lower die base 110, and a blanking die 120 and a return elastic actuator 130 arranged on the lower die base 110;

[0007] An upper die 200, the upper die 200 includes an upper die base 210, and a blanking punch 220 arranged on the upper die base 210, and the upper die base 210 can contact but not connect with the return elastic element 130;

[0008] A punching press, the punching press has an upper slider that can move up and down. When the upper slider moves downward, it can contact the upper die base 210 and drive the upper die 200 to move downward, and the upper slider is not connected to the upper die base 210;

[0009] Wherein, when the upper die 200 moves downward, it compresses the return elastic element 130.

[0010] Further, the return elastic actuator 130 is a nitrogen spring.

[0011] Further, there are four return elastic actuators 130, and the four return elastic actuators 130 are distributed on the lower die base 110.

[0012] Furthermore, the return elastic actuator 130 is detachably connected to the lower mold base 110 .

[0013] Furthermore, a buffer member 131 is disposed at the top of the return elastic actuator 130 .

[0014] Furthermore, a limiting member 230 is provided on the upper mold base 210 at a position corresponding to the return elastic actuator 130 .

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a punching structure, which cancels the connection between the upper die and the slider on the punching machine equipment, and arranges a return elastic actuator on the lower die, the return elastic actuator is used as the return power source of the upper die, the return elastic actuator drives the upper die to move upward, the stroke of the return elastic actuator is the stroke of the upper die, and by controlling the stroke of the upper die, it is ensured that the punching punch will not interfere with the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 A schematic structural diagram of a punching structure in one embodiment;

[0019] Figure 2 A schematic diagram of the structure of a lower mold in one embodiment;

[0020] Figure 3 A schematic diagram of the structure of an upper mold in an embodiment;

[0021] Figure 4 It is a structural schematic diagram of parts in one embodiment;

[0022] Figure 5 A schematic diagram of the structure of the cooperation between the parts and the lower die in one embodiment;

[0023] 100. lower die, 110. lower die base, 120. punching die, 130. return elastic actuator;

[0024] 200. Upper die, 210. Upper die base, 220. Punching punch, 230. Limiting piece;

[0025] 300. Parts, 310. Interference areas, 320. Punching areas. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the utility model is described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, but not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 5 This embodiment provides a punching structure for punching a part when there is interference between the part itself and the punching path, including: a lower die 100, an upper die 200 and a punch press.

[0028] The lower die 100 includes a lower die base 110 , and a punching die 120 and a return elastic actuator 130 disposed on the lower die base 110 .

[0029] In this embodiment, a nitrogen spring is used as the return elastic actuator 130. There are four return elastic actuators 130. The four return elastic actuators 130 are distributed at the four corners of the lower mold base 110. A buffer 131 is provided at the top of the return elastic actuator 130. The buffer 131 can be a polyurethane block.

[0030] The upper die 200 includes an upper die base 210 and a punching punch 220 disposed on the upper die base 210 . The upper die base 210 can contact with the buffer member 131 at the top end of the return elastic element 130 but is not connected thereto.

[0031] The punch press has an upper slider that can move up and down. When the upper slider moves downward, it can contact the upper die base 210 and drive the upper die 200 to continue to move downward. The upper slider is not connected to the upper die base 210. When the upper slider moves upward, it will not drive the upper die base 210 to move upward.

[0032] The working principle of a punching structure provided in this embodiment is as follows:

[0033] When the upper die 200 and the lower die 100 are in an open state, the initial position of the upper die 200 ensures that the punching punch 220 avoids the interference portion 310 of the part 300 itself.

[0034] During operation, the part 300 is placed horizontally on the punching die 120 of the lower die 100. At this time, the interference portion 310 of the part 300 itself is located above the punching punch 220 of the upper die 200. The upper slider of the punch press moves downward, and the upper slider continues to move downward after contacting the upper die seat 210, driving the upper die 200 to press down and close with the lower die 100, completing the punching of the punching portion 320 of the part 300. At this time, the return elastic actuator 130 is compressed. After completion, the upper slider of the punch press moves upward, the downward pressure of the upper slider on the upper die base 210 is eliminated, the return elastic actuator 130 is reset, and the upper die 200 is driven to move upward. Since the upper die base 210 is not connected to the upper slider, the reset stroke of the return elastic actuator 130 is the stroke of the upper die 200. By controlling the stroke of the upper die 200, it is ensured that the punching punch 220 will not interfere with the interference part 310 of the part 300 during the opening process.

[0035] Since the return elastic actuator 130 is used as the return power source of the upper mold 200, the stroke of the upper mold 200 can be controlled by controlling the stroke of the return elastic actuator 130. Therefore, in this embodiment, the return elastic actuator 130 and the lower mold base 110 are arranged to be detachably connected. The stroke of the upper mold 200 can be changed by replacing the return elastic actuator 130 with different strokes to adapt to the application of different parts. In another embodiment, a limiting member 230 is arranged on the upper mold base 210 at a position corresponding to the return elastic actuator 130. When the upper mold 200 moves downward, the limiting member 230 contacts the top of the return elastic actuator 130. The limiting member 230 and the upper mold base 210 are also arranged to be detachably connected. The stroke of the upper mold 200 can also be changed by replacing the limiting members 230 with different heights without replacing the return elastic actuator 130.

[0036] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blanking structure for blanking a part when there is interference between the part itself and the blanking path, characterized in that Comprising: A lower die (100), the lower die (100) includes a lower die base (110), a blanking female die (120) and a return elastic actuator (130) provided on the lower die base (110); An upper die (200), the upper die (200) includes an upper die base (210), and a blanking male die (220) provided on the upper die base (210), the upper die base (210) can contact the top of the return elastic actuator (130) but is not connected thereto; A punching press, the punching press has an upper slide block that can move up and down, when the upper slide block moves downward, it can contact the upper die base (210) and drive the upper die (200) to move downward, the upper slide block is not connected to the upper die base (210); Wherein, when the upper die (200) moves downward, it compresses the return elastic actuator (130).

2. The blanking structure according to claim 1, characterized in that, The return elastic actuator (130) is a nitrogen spring.

3. The blanking structure according to claim 1, wherein There are four return elastic actuators (130), and the four return elastic actuators (130) are distributed and arranged on the lower die base (110).

4. A blanking structure according to claim 1, characterized in that, The return elastic actuator (130) is detachably connected to the lower die base (110).

5. The blanking structure according to claim 1, characterized in that, A buffer (131) is provided at the top of the return elastic actuator (130).

6. The blanking structure according to claim 1, wherein, A limiting member (230) is provided on the upper die base (210) at a position corresponding to the return elastic actuator (130).

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