CN210523589U

CN210523589U - Stretch forming bidirectional moving structure

Info

Publication number: CN210523589U
Application number: CN201921273768.0U
Authority: CN
Inventors: 朱长海
Original assignee: Dongguan Kingpin Metal Tool Co ltd
Current assignee: Dongguan Kingpin Metal Tool Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-05-15
Anticipated expiration: 2029-08-07

Abstract

The utility model relates to the field of dies, concretely relates to two-way movable structure of stretch forming, including the punch press lower stage, set up in the lower die pad of punch press lower stage, be fixed in the lower die terrace die of lower die pad, wrap around in the lower die pressure flitch of lower die terrace die, be located the upper die pad of lower die pad top, be fixed in the upper die of upper die pad and wrap around in the upper die pressure flitch of upper die, still include punch press gas ejector pin and thimble control mechanism, punch press gas ejector pin passes the punch press lower stage from lower outer bed and supports in the lower die pad, thimble control mechanism is used for controlling punch press gas ejector pin and descends with lower die pad with preset resistance simultaneously when the product is shaped, or the product is after the downward drawing is to the end to control punch press gas ejector pin atmospheric pressure and is let out zero, or the gas ejector pin upwards pressurizes and pushes out the product; the process is finished by one-time stretching, and the required precision of the product is achieved; the like products reduce one process, and the production efficiency and the production cost are greatly improved.

Description

Stretch forming bidirectional moving structure

Technical Field

The utility model relates to a mould field, concretely relates to stretch forming bidirectional movement structure.

Background

The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping processing, is called as a cold stamping die (commonly called as a cold stamping die), and is a pressure processing method for applying pressure to the materials by using a die arranged on a press machine at room temperature to separate or plastically deform the materials so as to obtain required parts; in the prior art, the product is only pressed at the periphery of the product during stretching, and the middle area of the product can be freely formed only according to general stretching; other control can not be carried out, and the problem in the middle of products manufactured according to the general stretching process can not be solved due to the special shape of part of products, especially for hardware products such as the upper plate of the front auxiliary frame of the automobile and the like.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is to overcome the defects in the prior art, and to provide a stretch forming two-way movable structure, which can be completed by one-time stretching and achieve the precision required by the product; the like products reduce one process, and the production efficiency and the production cost are greatly improved.

The utility model discloses a two-way movable structure of stretch forming, including the punch press platform, set up in the lower die pad of punch press platform, be fixed in the lower die terrace die of lower die pad, wrap up in the lower mould of lower die terrace die press flitch, be located the last die pad of lower die pad top, be fixed in the last die pad of last die pad and wrap up in the last mould of last die pad and press the flitch, still include punch press gas ejector pin and thimble control mechanism, punch press gas ejector pin passes the punch press platform from outer bed down and supports in the lower die pad, thimble control mechanism is used for controlling punch press gas ejector pin and descends simultaneously with lower die pad with predetermineeing the resistance when the product takes shape, or the product is after the downdraft control punch press gas ejector pin atmospheric pressure to let out zero, or the die sinking back gas ejector pin upwards pressurizes and is ejecting the product.

Furthermore, the punch press gas ejector rods are uniformly distributed according to the product.

The utility model has the advantages that: the utility model discloses a stretching forming bidirectional movable structure, the traditional process needs two times of stretching to realize the forming process, the structure realizes one-time stretching completion, and reaches the precision required by the product; the like products reduce one process, and the production efficiency and the production cost are greatly improved; the mould make full use of punch press is put from the gas cap of taking, has reduced the cost of manufacture of mould, because the gas cap pressure adjustability of punch press is high, has also reduced the debugging cost of mould simultaneously, and the stability of mould also improves greatly.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention.

Detailed Description

As shown, a stretch-forming bi-directional movable structure in this embodiment; the punching machine comprises a punching machine lower table 1, a lower die pad 2 arranged on the punching machine lower table, a lower die male die 3 fixed on the lower die pad, a lower die pressure plate 4 wrapped on the lower die male die, an upper die pad (not shown) positioned above the lower die pad, an upper die female die fixed on the upper die pad, an upper die pressure plate wrapped on the upper die female die, a punching machine air ejector rod 5 and an ejector pin control mechanism, wherein the punching machine air ejector rod penetrates through the punching machine lower table from a lower outer bed and is supported on the lower die pad, the ejector pin control mechanism is used for controlling the punching machine air ejector rod to simultaneously descend with the lower die pad with preset resistance when a product is formed, or controlling the air pressure of the punching machine air ejector rod to be discharged to zero after the product is stretched to the bottom, or controlling the air ejector rod of the punching machine to; the number of the punch press air ejector rods is multiple, and the multiple punch press air ejector rods are uniformly distributed according to the product; the thimble control mechanism is the prior art and is not described herein again; the lower die of the die is of a general stretching structure, the material pressing force part is replaced by a pneumatic device of a punch press or an oil press, and the middle part of the upper die is made into a movable material pressing plate. The middle pressure plate of the upper die compresses raw materials on the convex die surface of the lower die before stretching forming, when the upper die continues to form downwards, the outer pressure plate of the lower die contacts with the concave die of the upper die to compress the periphery of a material sheet, and the die continues to move downwards, so that the periphery and the middle part of the raw materials are compressed by the pressure plates to form in the stretching forming process. After the die is opened, the lower die air ejection rod is pressurized again to eject the product. And finishing primary stretch forming. The pressure time of the air ejector rod is controllable, so that the one-time stretching feasibility of the product is ensured. So as to solve the problem of starting of one-time stretching.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A stretch-forming bi-directional movable structure is characterized in that: including the punch press lower stage, set up in the lower die pad of punch press lower stage, be fixed in the lower die terrace die of lower die pad, wrap up in the lower mould pressure flitch of lower die terrace die, be located the last die pad of lower die pad top, be fixed in the last die pad of last die pad and wrap up in the last mould pressure flitch of last die pad, still include punch press gas ejector pin and thimble control mechanism, punch press gas ejector pin passes the punch press lower stage and supports in the lower die pad from outer bed down, thimble control mechanism is used for controlling punch press gas ejector pin and descends simultaneously with lower die pad with the resistance of predetermineeing when the product takes shape, or the product is after the downdraft back-to-the-bottom control punch press gas ejector pin atmospheric pressure let out to zero, or the punch press gas ejector pin upwards pressurizes and is ejecting the product after.

2. A stretch-forming bi-directional movable structure as recited in claim 1, wherein: the punch press gas ejector rods are uniformly distributed according to the product.