CN212216770U

CN212216770U - Punching die capable of being flexibly switched

Info

Publication number: CN212216770U
Application number: CN201922089097.9U
Authority: CN
Inventors: 李治涛; 蔡雷
Original assignee: Kunshan Sanjing Technology Co ltd
Current assignee: Kunshan Sanjing Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-12-25
Anticipated expiration: 2029-11-28

Abstract

The invention discloses a punching die capable of being flexibly switched, which comprises a base, a lower die and an upper die; the lower die is provided with a plurality of punching cutters which move along the direction parallel to the first direction, and the upper die surface of the upper die is provided with a plurality of punching holes corresponding to the punching cutters; the base is provided with at least two sliding blocks, and the surfaces of the sliding blocks facing the punching tool are provided with grooves matched with the corresponding punching tool; the groove bottom of the groove is in transition connection with the surface of the sliding block through a transition surface; when the bottom of the punching tool is contacted with the bottom of the corresponding groove, the top of the punching tool retracts below the upper die surface of the lower die; when the bottom of the punching cutter is contacted with the surface of the sliding block where the corresponding groove is positioned, the top of the punching cutter protrudes above the upper die surface of the lower die; the transition surface can drive the punching cutter to complete the actions in the process of sliding contact with the bottom of the corresponding punching cutter; the first direction is perpendicular to the upper die surface of the lower die. The invention has the following beneficial effects: can be according to thereby the automatic nimble tool changing of processing needs improves machining efficiency.

Description

Punching die capable of being flexibly switched

Technical Field

The invention belongs to the technical field of sheet material hole machining, and particularly relates to a punching die capable of being flexibly switched.

Background

The processing technology of the holes is various, for sheet parts, the processing of the holes is usually completed by a punching technology, and the technology has the advantages of being capable of realizing the mass processing of continuous holes, having extremely high efficiency and processing precision and having extremely wide application in many fields.

In the punching process, the size and shape of the hole depend on the size and shape of the cutting edge of the punching tool. This creates an important problem: a punching cutter can only process holes with one specification, and only the punching cutter can be replaced when the specification of the holes needs to be changed. However, in the actual production process, most of the thin plate parts are strip-type parts, as shown in fig. 1, when holes with different specifications are machined on the thin plate part 100 (such as a square hole 101, a rectangular hole 102, and a circular hole 103), only a punching tool needs to be replaced, and each replacement process needs to be performed in a state of stopping a die, so that the whole machining efficiency is necessarily reduced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a punching die capable of being flexibly switched, which can automatically and flexibly change tools according to processing requirements so as to improve the processing efficiency.

In order to solve the problems of the prior art, the invention discloses a punching die capable of being flexibly switched, which comprises a base, a lower die and an upper die, wherein the lower die is arranged on the base, and the upper die is arranged above the lower die and mutually close to or far away from the lower die along a first direction; the lower die is provided with a plurality of punching cutters which move along the direction parallel to the first direction, and the upper die surface of the upper die is provided with a plurality of punching holes corresponding to the punching cutters; the base is provided with at least two sliding blocks, and the surfaces of the sliding blocks facing the punching tool are provided with grooves matched with the corresponding punching tool; the groove bottom of the groove is in transition connection with the surface of the sliding block through a transition surface; when the bottom of the punching tool is contacted with the bottom of the corresponding groove, the top of the punching tool retracts below the upper die surface of the lower die; when the bottom of the punching tool is in contact with the surface of the sliding block where the corresponding groove is located, the top of the punching tool protrudes above the upper die surface of the lower die; the transition surface can drive the punching cutter to complete the actions in the process of sliding contact with the bottom of the corresponding punching cutter; the first direction is perpendicular to the upper die surface of the lower die.

Further, the sliding blocks are independently driven by different air cylinders, and the air cylinders are independently controlled by a PLC.

Further, the moving directions of the sliding blocks are perpendicular to the first direction.

Further, the sliding blocks are distributed in sequence according to the moving direction of the processing material.

Furthermore, the upper die is provided with a cutter for cutting off the processing material and a cutting cylinder for driving the cutter to move.

Further, the transition surface is an inclined surface or an arc surface.

Furthermore, when the bottom of one punching cutter is contacted with the bottom of the corresponding groove, the bottoms of other punching cutters are contacted with the surface of the sliding block on one side of the corresponding groove.

Further, the punching tool is used for punching holes with different sizes and shapes.

The invention has the following beneficial effects: can be according to thereby the automatic nimble tool changing of processing needs improves machining efficiency.

Drawings

FIG. 1 is a schematic structural view of a material to be processed by the mold of the present invention;

FIG. 2 is a top view of a structure according to an embodiment of the present invention;

FIG. 3 is a front view of the structure of the embodiment shown in FIG. 2;

FIG. 4 is a view taken along line A-A of FIG. 2;

FIG. 5 is a view taken along line B-B of FIG. 2;

fig. 6 is a schematic diagram of the operation of the slider in the embodiment of fig. 2.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 2 to 6, a flexible-switching punching die 200 includes a base 15, a lower die 2 provided on the base 15, and an upper die 1 which is located above the lower die 2 and is moved toward or away from the lower die 2 in a first direction. The lower die 1 is provided with a plurality of punching cutters which move along the direction parallel to the first direction, and the upper die surface of the upper die 1 is provided with a plurality of punching holes corresponding to the punching cutters.

When the sheet metal part 100 passes between the upper die 1 and the lower die 2, the upper die 1 and the lower die 2 are closed to make the punching tool punch a hole with a proper size on the sheet metal part 100. At least two sliding blocks are arranged on the base 15, for convenience of describing the technical scheme, three sliding blocks are selected for explaining the structure and the principle in the embodiment, and the three sliding blocks are respectively a first sliding block 5, a second sliding block 6 and a third sliding block 7.

The surfaces of the three sliding blocks facing the punching tool are provided with grooves matched with the corresponding punching tool, specifically, the surface of the first sliding block 5 is provided with a first groove 5.2 and a second groove 5.4, and the first groove 5.2 is in transition connection with the surface of one side through a first transition surface 5.1; the second recess 5.4 is connected to the surface of the one side by a second transition surface 5.3. The surface of the second sliding block 6 is provided with a third groove 6.1, and the third groove 6.1 is transitionally connected with the surface of one side through a third transition surface 6.2.

The groove bottom of the groove is in transition connection with the surface of the sliding block through a transition surface; when the bottom of the punching tool is contacted with the bottom of the corresponding groove, the top of the punching tool is retracted below the upper die surface of the lower die 1; when the bottom of the punching tool is contacted with the surface of the sliding block where the corresponding groove is positioned, the top of the punching tool protrudes above the upper die surface of the lower die 1; the transition surface can drive the punching cutter to complete the actions in the process of sliding contact with the bottom of the corresponding punching cutter; the first direction is perpendicular to the upper die surface of the lower die 1.

The punching cutter matched with the first recess 5.2 is a square hole cutter 12 for punching a square hole 101, the punching cutter matched with the second recess 5.4 is a rectangular hole cutter 13 for punching a rectangular hole 102, and the punching cutter matched with the third recess 6.1 is a round hole cutter 14 for punching a round hole 103.

The machining of holes with different specifications can be realized through the matching relation between the punching cutter and the corresponding groove.

The sliding blocks are independently driven by different cylinders, specifically, the first sliding block 5 is driven by a first cylinder 8, the second sliding block 6 is driven by a second cylinder 9, the third sliding block 7 is driven by a third cylinder 10, and the three cylinders are independently controlled by a PLC 11.

To facilitate die cutting, in one embodiment, the direction of movement of all the slides is perpendicular to the first direction, and further, the direction of movement of the slides is also perpendicular to the feed direction of the work material 100.

In one embodiment, the first slider 5, the second slider 6 and the third slider 7 are arranged in this order in the feeding direction of the work material 100.

In one embodiment, since the work material 100 itself is a long strip structure, the upper die 1 is provided with a cutter 3 for cutting the work material 100 and a cutting cylinder 4 for driving the cutter 3 to move, in order to cut the work material after the end of punching. When cutting is required, the cutting cylinder 4 is lowered to cut the work material 100 by the cutter 3.

In one embodiment, in order to make the transition surface and the punching cutter more smoothly matched, the transition surface is a slope surface or a circular arc surface.

In one embodiment, during the process of machining holes of the same specification, it is necessary to keep the punching tool corresponding to the specification of the hole in place, while the other punching tools do not punch the machined material. When the bottom of one punching cutter is contacted with the groove bottom of the corresponding groove, the bottoms of other punching cutters are contacted with the surface of the sliding block on one side of the corresponding groove.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A flexibly switchable punching die (200), characterized in that: the device comprises a base (15), a lower die (2) arranged on the base (15) and an upper die (1) which is arranged above the lower die (2) and is close to or far away from the lower die (2) along a first direction; the lower die (2) is provided with a plurality of punching cutters which move along the direction parallel to the first direction, and the upper die surface of the upper die (1) is provided with a plurality of punching holes corresponding to the punching cutters; at least two sliding blocks are arranged on the base (15), and grooves matched with corresponding punching tools are formed in the surfaces, facing the punching tools, of the sliding blocks; the groove bottom of the groove is in transition connection with the surface of the sliding block through a transition surface; when the bottom of the punching tool is contacted with the bottom of the corresponding groove, the top of the punching tool is retracted below the upper die surface of the lower die (2); when the bottom of the punching tool is in contact with the surface of the sliding block where the corresponding groove is located, the top of the punching tool protrudes above the upper die surface of the lower die (2); the transition surface can drive the punching cutter to complete the actions in the process of sliding contact with the bottom of the corresponding punching cutter; the first direction is perpendicular to the upper die surface of the lower die (2).

2. A flexibly switchable punching die (200) according to claim 1, characterized in that: the sliding blocks are independently driven by different cylinders, and the cylinders are independently controlled by a PLC.

3. A flexibly switchable punching die (200) according to claim 1, characterized in that: the moving directions of the sliding blocks are all perpendicular to the first direction.

4. A flexibly switchable punching die (200) according to claim 1, characterized in that: the sliding blocks are distributed in sequence according to the moving direction of the processing material (100).

5. A flexibly switchable punching die (200) according to claim 1, characterized in that: go up mould (1) and be equipped with cutter (3) and the drive that are used for deciding processing material (100) cutter (3) motion cut cylinder (4).

6. A flexibly switchable punching die (200) according to claim 1, characterized in that: the transition surface is an inclined surface or an arc surface.

7. A flexibly switchable punching die (200) according to claim 1, characterized in that: when the bottom of one punching cutter is contacted with the groove bottom of the corresponding groove, the bottoms of other punching cutters are contacted with the surface of the sliding block on one side of the corresponding groove.

8. A flexibly switchable punching die (200) according to claim 7, characterized in that: the punching tool is used for punching holes with different sizes and shapes.