CN214814030U

CN214814030U - U-shaped punch

Info

Publication number: CN214814030U
Application number: CN202121751386.1U
Authority: CN
Inventors: 吴景明; 许锋
Original assignee: Jiaxing Longtu Precision Machinery Co ltd
Current assignee: Jiaxing Longtu Precision Machinery Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-11-23
Anticipated expiration: 2031-07-29

Abstract

A U-shaped punch comprises a punch body, a positioning blade arranged on one end part of the punch body, first mounting holes arranged on two side walls of the punch body and far away from the end part of the positioning blade, and a punch seat connected with the punch body. According to the U-shaped punch, the punch main body is designed into a U shape, so that the U-shaped punch is more convenient and quicker to punch a U-shaped hole. The positioning blade arranged on one end part of the punch body enables the punch body to be pre-positioned during punching, so that the phenomenon of slipping is avoided, and the punching precision is improved. And the punch head main body is tightly matched with the punch head seat through the matching of the first mounting hole and the second mounting hole, so that the connection is more stable.

Description

U-shaped punch

Technical Field

The utility model relates to a drift technical field, in particular to U-shaped drift.

Background

The metal parts on the stamping die in the mechanical tool, also called as the stamping rod, the stamping needle or the punch, are installed on the stamping die to perform continuous punching, stamping and breaking operation, so that the processed material is separated or plastically deformed, and the required finished product or semi-finished product is obtained.

In chinese patent CN201920002178.8, a wear-resistant and pressure-resistant stamped special-shaped punch is disclosed, in which a protective primary cylinder and a protective secondary cylinder are sleeved outside the punch, and the protective secondary cylinder extends and retracts inside the protective primary cylinder, so as to provide necessary protection while not affecting the work of the punch, and prevent the punch from colliding with external hard parts to cause abrasion, thereby affecting the processing precision; although this can prolong the life of the punch, when punching a specific shape such as a U shape, it is necessary to punch a plurality of times along a predetermined route. And need operating personnel to spend the time after the punching press is accomplished and polish, make the hole surfacing of spare part, this can increase a large amount of time cost undoubtedly, is unfavorable for the economic nature of enterprise.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can improve the U-shaped drift of the above-mentioned condition to satisfy the industrial demand.

A U-shaped punch comprises a punch body, a positioning blade provided on an end portion of the punch body, a pair of first mounting holes provided on both side walls of the punch body at ends remote from the positioning blade, and a punch base connected to the punch body.

Further, the surface of the punch main body is subjected to cadmium plating treatment.

Furthermore, two side walls of the punch main body are outwards bent and are trumpet-shaped

Further, the cross section of the positioning edge is triangular.

Furthermore, a U-shaped hole with the same specification and size as the punch main body is formed in the punch seat, and second mounting holes are formed in two side walls close to the U-shaped hole.

Compared with the prior art, the utility model provides a U-shaped drift is through inciting somebody to action the drift main part designs into the U-shaped, makes its convenient and fast more when punching press U-shaped hole. The positioning blade arranged on one end part of the punch body enables the punch body to be pre-positioned during punching, so that the phenomenon of slipping is avoided, and the punching precision is improved. And the punch head main body is tightly matched with the punch head seat through the matching of the first mounting hole and the second mounting hole, so that the connection is more stable.

Drawings

Fig. 1 is a schematic structural view of the U-shaped punch according to the present invention.

Fig. 2 is a schematic structural view of a punch body included in the U-shaped punch of fig. 1.

Fig. 3 is a schematic structural view of a punch holder of the U-shaped punch of fig. 1.

Fig. 4 is a schematic view of the parts after the U-shaped punch is machined.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 4, it is a schematic structural diagram of the U-shaped punch provided by the present invention. The U-shaped punch comprises a punch body 10 and a punch holder 20 connected to the punch body 10, and the U-shaped punch further comprises other functional modules, such as edge chamfers and the like, which should be known to those skilled in the art, and will not be described in detail herein.

The punch body 10 is made of high-speed steel, and the surface of the punch body 10 is subjected to chrome plating treatment, so that the surface hardness of the punch body 10 is improved, the loss of the punch body 10 in the punching process is reduced, and the service life is prolonged. Referring to fig. 1, two sidewalls of the punch body 10 are outwardly curved and horn-shaped. Two side walls of the punch main body 10 which are bent outwards are matched with the punch seat 20, so that the radial shaking of the punch main body is limited, and the stability is improved. A positioning blade 11 is provided on one end portion of the punch body 10. The positioning edge 11 extends along the cross section of the punch body 10, i.e. is U-shaped. The cross section of the positioning blade 11 is triangular, so that an edge angle is arranged on the end surface facing to the outer side. The positioning blade 11 enables the punch body 10 to be firstly contacted with the surface of a part and embedded into the surface of the part to be processed when the punch body is used for punching, so that the punch body 10 is prevented from slipping, and the punching precision is improved. The cross section of the positioning blade 11 is triangular, the width of the bottom side of the triangle is one third of the width of the cross section of the end part of the punch main body 10, and the height of the triangle is smaller than or equal to the width of the triangle. The purpose is in order to avoid the location sword 11 to produce excessive extrusion to the part when treating the surface location of processing part, leads to the part to take place the phenomenon emergence of slight deformation, influences the external dimension of part. The punch body 10 is further provided with a first mounting hole 12. The first mounting hole 12 is engaged with the punch holder 20, and will be described in detail with reference to the punch holder 20.

The punch platform 20 is adapted to cooperate with the punch body 10. The punch head seat 20 is provided with a U-shaped hole 21, and one end of the punch head body 10, which is not provided with the positioning blade 11, is inserted into the U-shaped hole 21 and is overlapped with one end face of the punch head seat 20 to form a plane. And a second mounting hole 22 is arranged on the side wall of the horn opening of the U-shaped hole 21. After the punch main body 10 is matched with the punch base 20, the second mounting hole 22 is overlapped with the first mounting hole 12 to form a through hole for inserting a fixing rod or a connecting shaft. It is contemplated that the dimensions of the first and

second mounting holes

12, 22 may be designed based on the overall dimensions of the punch body 10 to accommodate punch bodies 10 of different sizes.

Compared with the prior art, the utility model provides a U-shaped drift is through inciting somebody to action drift main part 10 designs into the U-shaped, makes its convenient and fast more when punching press U-shaped hole. The positioning blade 11 provided at one end of the punch body 10 enables the punch body 10 to be positioned in advance during punching, thereby preventing a slip phenomenon and improving punching accuracy. And the punch body 10 is tightly matched with the punch seat 20 through the matching of the first mounting hole 12 and the second mounting hole 22, so that the connection is more stable.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. A U-shaped punch is characterized in that: the U-shaped punch comprises a punch body, a positioning blade arranged on one end part of the punch body, a pair of first mounting holes arranged on two side walls of the punch body and far away from the end part of the positioning blade, and a punch seat connected with the punch body.

2. The U-shaped punch of claim 1, wherein: the surface of the punch main body is subjected to cadmium plating treatment.

3. The U-shaped punch of claim 1, wherein: the two side walls of the punch main body are outwards bent and are horn-shaped.

4. The U-shaped punch of claim 1, wherein: the cross section of the positioning blade is triangular.

5. The U-shaped punch of claim 1, wherein: the punch head seat is provided with a U-shaped hole with the same specification and size as the punch head main body, and second mounting holes are formed in two side walls close to the U-shaped hole.