Punching device

Abstract

To provide a punching device which can suppress a fear that punching chips are attached to a punching tool again.SOLUTION: A punching device 10 mounts a workpiece WK on a jig 1, pushes a punching tool 2 onto the workpiece WK, and thereby punches the workpiece WK. The punching device 10 includes: the jig 1 having a mounting surface 1b where the workpiece WK is mounted and a surface 1c opposite to the mounting surface 1b; and the punching tool 2 projecting from the surface 1c opposite to the mounting surface 1b when the workpiece WK is punched. The jig 1 includes: an air blow supply part 1d for spraying air to a tip 2a of the punching tool 2 in a direction crossing a projection direction of the punching tool 2; and a stepped part 1e provided on the surface 1c opposite to the mounting surface 1b.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a punching device. [Background technology]

[0002] In the method of punching sheet material disclosed in Patent Document 1, a ceramic green sheet is first placed on a die, and a punch is reciprocated toward the die to punch the ceramic green sheet and form a hole. The punch is then further lowered and inserted into the hole. This compresses the air present in the space between the tip of the punch and the punched waste within the hole, and this compressed air blows the punched waste downward. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 07-276295 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present application have discovered the following technical problems. There is a punching device that punches a workpiece by placing the workpiece on a jig and then pushing a punching tool from the workpiece side into the jig side. After such a punching device punches the workpiece, the tip of the punching tool protrudes from the workpiece side toward the jig side. Punching debris may adhere to the tip of the punching tool. The inventors of the present application conceived of supplying air from the jig side to the punching tool in order to remove punching debris adhering to the tip of the punching tool. However, there is a risk that the punching debris will be blown away by the air blow and re-adhere to the punching tool.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and provides a punching device that can reduce the risk of punching chips re-adhering to the punching tool. [Means for solving the problem]

[0006] The punching device according to the present disclosure comprises: A punching device that punches a workpiece by placing the workpiece on a jig and pressing a punching tool into the workpiece, a jig having a mounting surface on which the workpiece is placed and a surface opposite to the mounting surface; a punching tool that protrudes from a surface opposite to the placing surface when the workpiece is punched, The jig is an air blow supply unit that blows air against the tip of the punching tool in a direction intersecting the protruding direction of the punching tool; and a stepped portion provided on the surface opposite to the mounting surface. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to reduce the risk of punching chips re-adhering to the punching tool. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing an example of the configuration of a punching device according to a first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments. In addition, the following description and drawings have been simplified as appropriate for clarity of explanation.

[0010] Naturally, the right-handed XYZ coordinate system shown in Figure 1 and other drawings is for the convenience of explaining the positional relationships of the components. Normally, the positive Z axis is vertically upward, and the XY plane is the horizontal plane, which is common among the drawings.

[0011] <First Embodiment> The first embodiment will be described with reference to Fig. 1. Fig. 1 is a schematic diagram showing an example of the configuration of a punching device according to the first embodiment.

[0012] As shown in FIG. 1, the punching device 10 includes a jig 1 and a punching tool 2.

[0013] The jig 1 includes a main body 1a, an air blow supply section 1d, and a stepped section 1e.

[0014] The main body 1a has a mounting surface 1b, a surface 1c, and an inner wall surface 1f. The mounting surface 1b preferably has a surface shape on which the workpiece WK can be placed. The surface 1c is the surface opposite the mounting surface 1b. The inner wall surface 1f is connected to the surface 1c. The inner wall surface 1f preferably consists of two surfaces facing each other. A punching tool 2 may be disposed between the two surfaces. The inner wall surface 1f may also be an inner peripheral surface surrounding the punching tool 2. The surface 1c and the inner wall surface 1f define a predetermined space SP. The punching waste WKa may be discharged into the space SP. The punching waste WKa may accumulate in the space SP or pass through the space SP and move to the outside of the punching device 10.

[0015] The punching tool 2 is held so as to be capable of reciprocating motion relative to the mounting surface 1b of the jig 1. The punching tool 2 is preferably held by a drive mechanism (not shown).

[0016] The air blow supply unit 1d blows air toward the tip 2a of the punching tool 2 in a direction intersecting the protruding direction of the punching tool 2. The protruding direction of the punching tool 2 is, for example, the negative direction of the Z axis. The direction intersecting the protruding direction of the punching tool 2 is, for example, the positive direction of the X axis. The air blow supply unit 1d includes, for example, a flow path and an air blow supply source (not shown). The flow path opens at the inner wall surface 1f. The flow path connects the space SP and the air blow supply source. The air blow supply source includes, for example, an air compressor. The air blow supply source (not shown) supplies air to the space SP via the flow path.

[0017] The stepped portion 1e is provided on the surface 1c. The stepped portion 1e protrudes from the surface 1c onto the surface 1c. Specifically, the stepped portion 1e is preferably provided at the boundary between the surface 1c and the inner wall surface 1f. The height of the stepped portion 1e is preferably the same as the distance from the surface 1c to the tip 2a of the punching tool 2. In other words, the distance from the surface 1c to the tip of the stepped portion 1e is preferably the same as the distance from the surface 1c to the tip 2a of the punching tool 2.

[0018] Next, a punching method using the punching device 10 will be described.

[0019] The workpiece WK is placed on the placement surface 1b of the jig 1 (ST1).

[0020] Furthermore, the punching tool 2 is pressed into the workpiece WK to punch it out (ST2). When the workpiece WK is punched out, the tip 2a of the punching tool 2 protrudes from the surface 1c. Punching waste WKa adheres to the tip 2a of the punching tool 2.

[0021] Furthermore, air is blown toward the tip 2a of the punching tool 2 in a direction intersecting the protruding direction of the punching tool 2 (ST3). This causes the air to flow along the arrow F1. Specifically, the air passes through the tip 2a of the punching tool 2 and flows along the stepped portion 1e. The air collides with the inner wall surface 1f and flows in a direction away from the surface 1c (here, the negative direction of the Z axis). The punching waste WKa is caused to flow along the arrow F1 by the air. As a result, the punching waste WKa separates from the tip 2a of the punching tool 2 and flows in a direction away from the opposite surface 1c. This reduces the risk of the punching waste WKa re-adhering to the punching tool 2.

[0022] Furthermore, if the height of the stepped portion 1e is the same as the distance from the surface 1c to the tip 2a of the punching tool 2, the air may pass through the tip 2a of the punching tool 2 and easily flow along the stepped portion 1e.

[0023] Next, an example of analysis of air flow in a punching method using the punching device 10 will be described.

[0024] In this analysis example, the workpiece WK is a copper wire with a width of 2 mm. The punching width is 0.7 mm. The flow rate of the air blown by the air blow supply unit 1d is 10 m / sec. The height of the stepped portion 1e is the same as the distance from the surface 1c to the tip 2a of the punching tool 2.

[0025] In this analysis example, the air flows along the arrow F1 shown in Fig. 1. Therefore, it is estimated that the punching chips WKa are caused to flow along the arrow F1 by the air. As a result, it is estimated that the punching chips WKa move away from the tip 2a of the punching tool 2 and flow in a direction away from the opposite surface 1c.

[0026] The present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit and scope of the present invention. Furthermore, the present invention may be implemented by appropriately combining the above-described embodiment and examples thereof. [Explanation of symbols]

[0027] 10 Punching equipment 1 Jig 1a Main unit 1b Placement surface 1c Opposite side 1d Air blow supply unit 1e Stepped part 2 Punching tools 2a tip SP space WK Work WKa punching waste

Claims

[Claim 1] A punching device that punches a workpiece by placing the workpiece on a jig and pressing a punching tool into the workpiece, a jig having a mounting surface on which the workpiece is placed and a surface opposite to the mounting surface; a punching tool that protrudes from a surface opposite to the placing surface when the workpiece is punched, The jig is an air blow supply unit that blows air against the tip of the punching tool in a direction intersecting the protruding direction of the punching tool; and a stepped portion provided on a surface opposite to the mounting surface. Punching processing equipment.

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