CN211386536U

CN211386536U - Punching press drift of bending of vertical work piece

Info

Publication number: CN211386536U
Application number: CN201922032115.XU
Authority: CN
Inventors: 张韧; 朱建良; 陈国栋; 郑辉
Original assignee: Kunshan Yukai Hardware Spring Co ltd
Current assignee: Kunshan Yukai Hardware Spring Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-01
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a punching press drift of bending of vertical work piece, including the drift body, the drift body is the rectangle post, drift body terminal surface is concave cambered surface, concave cambered surface one end with the side of drift body meets and forms the closed angle, the other end of concave cambered surface with the opposite side of drift body meets. The utility model discloses a set up the arcwall face, can incline the direction to the work piece of vertical setting pushing down the in-process, realize bending of vertical work piece.

Description

Punching press drift of bending of vertical work piece

Technical Field

The utility model relates to a stamping die technical field, concretely relates to punching press drift of bending of vertical work piece.

Background

At present, direct stamping bending is mostly adopted in the straight angle bending processing of metal plates, and stamping dies are widely applied to the fields of hardware, vehicles, electronics, aviation, energy and the like due to the high efficiency and convenience of the processing, have simpler principle, and are more economical and material-saving than casting processing and lathe processing. The stamping die generally comprises a lower die mounted on a lower portion to be subjected to a force and an upper die vertically moved on an upper portion to apply a force to the lower die. It can be seen that the workpiece to be stamped needs to have a surface perpendicular to the stamping direction to enable stamping and bending.

However, for some workpieces with complex structures, the plane where the edge to be bent is located is parallel to the stamping direction, and bending cannot be achieved, so that a punch capable of stamping and bending a vertical workpiece needs to be designed urgently.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a punching press of vertical work piece drift of bending need not to change the structure of current punching machine and can realize bending the punching press of vertical work piece, simple structure, convenient implementation.

In order to solve the technical problem, the utility model provides a punching press of vertical work piece drift of bending, including the drift body, the drift body is the rectangle post, drift body terminal surface is concave cambered surface, concave cambered surface one end with the side of drift body meets and forms the closed angle, the other end of concave cambered surface with the opposite side of drift body meets.

Further, the angle alpha of the connecting part of the side surface of the punch body and the concave arc surface is larger than 0 degree.

Further, a lubricating layer is arranged on the surface of the concave cambered surface.

Further, the sharp corners are machined into round corners.

Further, the angle β of the concave arc surface is greater than 45 degrees and less than 90 degrees.

The utility model discloses a punching press of vertical work piece drift of bending compares beneficial effect with prior art is, through setting up the arcwall face, can incline the direction to the work piece of vertical setting in the in-process of pushing down, realizes bending of vertical work piece.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the working structure of the present invention;

fig. 3 is a schematic diagram of a second working structure according to the embodiment of the present invention.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1 and 2, for the utility model discloses a punching press of vertical work piece punches of bending's concrete embodiment, the utility model discloses a punch of bending includes punch body 3, because the part 2 that bends is generally for having sheet or panel of certain length, consequently in this embodiment, punch body 3 designs for the rectangle post, 3 terminal surfaces of punch body are

concave arc face

4, 4 one ends of concave arc face with punch body 3's side meets and forms closed angle 5. Therefore, during punching, firstly, the concave arc surface 4 is in contact with the bending part 2 of the workpiece 1, the contact position of the top surface of the bending part 2 of the workpiece 1 and the concave arc surface 4 cannot be limited by the concave arc surface 4, in the process that the punch body 3 is continuously pressed down, the top end of the bending part 2 of the workpiece 1 is along the vertical direction of the guide deviation of the concave arc surface 4, the lower part of the workpiece 1 is fixed by the lower die bearing force, and when the top end of the bending part 2 of the workpiece 1 is deviated from the vertical direction, the lower part of the workpiece 1 starts to be bent from the butt joint point of the lower die, so that the bending of the vertical bending. The other end of the concave arc surface 4 is connected with the opposite side surface of the punch body 3, and the concave arc surface 4 can be directly connected with the side surface of the punch body 3 or connected with the side surface of the punch body 3 through a plane tangent to the concave arc surface 4. Therefore, the bending part 2 of the workpiece 1 can continuously move towards the bending direction without being limited at a certain position, and the bending part 2 is flattened in the process of pressing down the punch. Further, in order to ensure that the inclined punching force can be applied to the workpiece 1 when the punch is contacted with the bending part 2 of the workpiece 1, the angle alpha of the joint of the side surface of the punch body 3 and the concave arc surface 4 is greater than 0 degree, namely the angle between the tangent plane of the joint of the concave arc surface 4 and the side surface of the punch body 3 is greater than 0 degree. The force applied to the workpiece 1 when the punch is brought into contact with the workpiece 1 is prevented from being a vertically downward pressure, and the workpiece 1 is prevented from not only being unable to be bent but also being flattened. In this embodiment, since the sharp corner 5 contacts the planar portion of the workpiece 1 first or the bent portion of the workpiece 1 abuts against the concave arc surface 4 when the punch is pressed down, the punch of this embodiment cannot bend the bent portion 2 to 90 degrees, and a normal punch needs to be used for secondary punching bending to bend the bent portion 2 to a predetermined angle, so as to ensure that the bent portion 2 is bent to apply only a force in the vertical direction during secondary punching to ensure that the bent portion 2 is continuously bent without being bent, and at this time, the bent portion 2 needs to be bent by at least 45 degrees, so that the angle β of the concave arc surface 4 in this embodiment is greater than 45 degrees, when the punch body 3 is rectangular, and when both ends of the concave arc surface 4 are tangent to both side surfaces of the punch body 3, the angle of the concave arc surface 4 is 90 degrees, so that the punch body 3 is pressed down, the workpiece 1 does not receive a force in the vertical direction, the concave arc surface 4 deviates from the positions of both ends tangent to the punch body 3, and the angle of the concave arc surface 4 is smaller than 90 degrees.

Further, in order to enable the top of the bending part 2 of the workpiece 1 to smoothly slide along the concave arc surface 4, a lubricating layer is arranged on the surface of the concave arc surface 4. Therefore, the top of the bending part 2 cannot be clamped at a certain position of the concave cambered surface 4 to influence the bending.

Referring to fig. 3, furthermore, during the process of continuously pressing down the punch body 3, the sharp corner 5 firstly contacts the plane part of the workpiece 1, and in order to prevent the sharp corner 5 from pressing down to leave a sharp impression on the surface of the workpiece 1, the sharp corner 5 is processed into a round corner. The number of the punch bodies 3 can be two, and two sides of the workpiece 1 are punched and bent simultaneously.

The utility model discloses at the during operation, work piece 1 is placed on the lower mould, the position of waiting to bend is aimed at to drift body 3, drift body 3 pushes down under the drive of last mould, drift body 3 is at the in-process that pushes down, concave arc surface 4 at first contacts the top of 1 portion 2 of bending of work piece, along with the continuous pushing down of drift, 2 tops of portion of bending remove skew vertical direction along the direction of concave arc surface 4, 1 lower part of work piece from the butt point department with the lower mould begin to buckle to realize 1 vertical buckling to portion 2 of bending of work piece.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a punching press drift of bending of vertical work piece, its characterized in that includes the drift body, the drift body is the rectangle post, drift body terminal surface is concave cambered surface, concave cambered surface one end with the side of drift body meets and forms the closed angle, the other end of concave cambered surface with the opposite side of drift body meets.

2. The punch press bending punch for the vertical workpiece as recited in claim 1, wherein an angle α at which the side surface of the punch body meets the concave arc surface is greater than 0 degree.

3. The punch press bending punch for the vertical workpiece according to claim 1, wherein the concave cambered surface is provided with a lubricating layer.

4. The punch press for bending vertical workpieces according to claim 1, wherein said sharp corners are rounded.

5. The punch press bending punch for vertical workpieces according to claim 1, wherein the angle β of the concave arc surface is greater than 45 degrees and less than 90 degrees.