Utility model content
In view of this, the utility model aims to provide that a kind of production efficiency is higher, the good punching press cold-heading device of product quality.
In order to realize the purpose of this utility model, a kind of punching press cold-heading device of the utility model, it comprises the upper die and lower die that can relatively move up and down, described patrix comprises upper bolster, stripper plate, flexible member, installing plate, punch forming punching pin and cold-heading molding punching pin, between described upper bolster and described stripper plate, connect by Connection Element, and can relatively move up and down between described upper bolster and stripper plate, described installing plate is arranged between described upper bolster and described stripper plate, and be fixedly connected with described upper bolster, described flexible member is connected with described upper bolster and can compresses along the vertical direction described stripper plate, described punch forming punching pin and cold-heading molding punching pin can pass described stripper plate up or down, and be connected with described installing plate, described counterdie comprises bottom plate and is arranged on the die shoe on described bottom plate, on described die shoe, be provided with that the punch forming matching with described punch forming punching pin and cold-heading molding punching pin respectively enters piece and cold-heading molding enters piece.
Preferably, described punching press cold-heading device also comprises guidance set, and described guidance set is fixedly connected with described upper bolster, and is slidably matched with described stripper plate and die shoe.
Preferably, described guidance set comprises guide post, upper lining, lower lining and block, described stripper plate is provided with fairlead, described die shoe is provided with lower fairlead, described guide post is through described stripper plate and described die shoe, the upper end of described guide post is fixedly connected with described upper bolster, the lower end of described guide post is connected with described block, described upper lining fixed cover is located at the outside of described guide post, and be arranged in described upper fairlead, be slidably matched with described upper fairlead, described lower lining slip cap is located at the outside of described guide post, and be arranged in described lower fairlead, be slidably matched with described lower fairlead, described block is positioned at the downside of described lower fairlead, and can promote described lower fairlead moves upward.
Preferably, in described die shoe, be also provided with de-material push rod and spring, described spring and de-material push rod extend along the vertical direction, one end of described spring is fixedly connected on described die shoe, the other end is connected with the lower end of described de-material push rod, described spring is under free state, and the upper end of described de-material push rod protrudes from the upper surface of described die shoe.
Preferably, described flexible member is air spring.
Preferably, described flexible member is in the time of free state, and described punch forming punching pin and cold-heading molding punching pin lower end are positioned at described stripper plate.
Preferably, the lower end of described punch forming punching pin is lower than the lower end of described cold-heading molding punching pin.
Preferably, described stripper plate comprises large stripper plate and little stripper plate, and described little stripper plate is connected to the below of described large stripper plate, and the lateral dimension of described large stripper plate is greater than the lateral dimension of described little stripper plate.
Preferably, described Connection Element is contour screw, described contour screw comprises nut and screw rod, described screw rod comprises threaded portion and smooth department, and described smooth department is between described threaded portion and described nut, and described threaded portion is fixedly connected with described upper bolster, described smooth department is through described large stripper plate, and be slidably matched with described large stripper plate, described nut is arranged on the below of described large stripper plate, and can promote described large stripper plate and move up.
Preferably, on described die shoe, be provided with the groove that can receive described nut.
The punching press cold-heading device that the utility model provides can carry out punching press and cold-heading to product in same equipment, and its production efficiency is higher, and owing to can product being carried out to shaping by cold-heading, makes the quality of product better.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to Fig. 1 to Fig. 3, the utility model embodiment provides a kind of punching press cold-heading device, and it comprises the upper die and lower die that can relatively move up and down.
Patrix comprises upper bolster 1, stripper plate, flexible member 4, installing plate, punch forming punching pin 6 and cold-heading molding punching pin 7.Between upper bolster 1 and stripper plate, connect by Connection Element 7, and can relatively move up and down between upper bolster 1 and stripper plate.Particularly, in a preferred embodiment, stripper plate comprises large stripper plate 8 and little stripper plate 9, and little stripper plate 9 is connected to the below of large stripper plate 8, and the lateral dimension of large stripper plate 8 (being also the length of horizontal direction and wide) is greater than the lateral dimension of little stripper plate 9.Further preferably, Connection Element 7 is contour screw, contour screw comprises nut and screw rod, and screw rod comprises threaded portion and smooth department, and smooth department is between threaded portion and nut, threaded portion is fixedly connected with by screw thread with upper bolster 1, smooth department passes large stripper plate 8, and is slidably matched with large stripper plate 8, and nut is arranged on the below of large stripper plate 8, in the time that upper bolster 1 moves up, nut can promote large stripper plate 8 and move up with upper bolster 1.Correspondingly, in a preferred embodiment, be provided with the groove 17 that can receive nut on die shoe 14, in the time that little stripper plate 9 is pressed on die shoe 14, nut is accommodated in groove 17.
Installing plate is arranged between upper bolster 1 and stripper plate, and is fixedly connected with upper bolster 1, is also that installing plate also can move up and down with respect to stripper plate.Particularly, in a preferred embodiment, installing plate comprises backing plate 2 and clamping plate 3, and clamping plate 3 are connected to the below of backing plate 2.Punch forming punching pin 6 and cold-heading molding punching pin 5 can pass stripper plate up or down, and are connected with installing plate.Particularly, interval predeterminable range between punch forming punching pin 6 and cold-heading molding punching pin 5, and respectively through clamping plate 3, be connected with backing plate 2.Punch forming punching pin 6 and cold-heading molding punching pin 5 are slidably matched with stripper plate 8 and little stripper plate 9.
Flexible member 4 is connected with upper bolster 1 and can compresses along the vertical direction stripper plate.Particularly, one end of flexible member 4 can be fixedly connected with upper bolster 1 by screw, and the other end compresses large stripper plate 8 downwards in the time of punching press state.In a preferred embodiment, flexible member 4 is air spring, is specially nitrogen spring.
Counterdie comprises bottom plate 16 and is arranged on the die shoe 14 on bottom plate 16, and die shoe 14 is specifically arranged on bottom plate 16 by multiple feets 15.On die shoe 14, be provided with that the punch forming matching with punch forming punching pin 6 and cold-heading molding punching pin 5 respectively enters piece 18 and cold-heading molding enters piece 23.Punch forming enters in piece 18 to offer the punching press die cavity 19 matching with the drift of punch forming punching pin 6, and the drift of punch forming punching pin 6 can insert in punching press die cavity 19.
In a preferred embodiment, this punching press cold-heading device also comprises guidance set, and guidance set is fixedly connected with upper bolster 1, and is slidably matched with stripper plate and die shoe 14, relative motion between patrix and counterdie is led, so that mould is in correct direction even running.Particularly, guidance set can comprise guide post 10, upper lining 11, lower lining 25 and block 24.On large stripper plate 8, be fixedly installed fairlead 12, on die shoe 14, be fixedly installed lower fairlead 26.Guide post 10 is through large stripper plate 8 and die shoe 14, and the upper end of guide post 10 is fixedly connected with upper bolster 1, and the lower end of guide post 10 is fixedly connected with block 24.Upper lining 11 fixed covers are located at the outside of guide post 10, and are arranged in fairlead 12, are slidably matched with upper fairlead 12, and lower lining 25 slip caps are located at the outside of guide post 10, and are arranged in lower fairlead 26, are slidably matched with lower fairlead 26.Block 24 is positioned at the downside of lower fairlead 25, and can promote lower fairlead 25 and move upward.
In a preferred embodiment, in die shoe 14, be also provided with de-material push rod 22 and spring 21, spring 21 and de-material push rod 22 extend along the vertical direction, one end of spring 21 is fixedly connected on die shoe 14 by set screw 20, the other end is connected with the lower end of de-material push rod 22, spring 21 is under free state, and the upper end of de-material push rod 22 protrudes from the upper surface of die shoe 14, for by product 13 jack-up.
In a preferred embodiment, flexible member 4 is in the time of free state, and the lower end of punch forming punching pin 6 and cold-heading molding punching pin 5 is all positioned at stripper plate, is also all to contract in little stripper plate 9 in the lower end of punch forming punching pin 6 and cold-heading molding punching pin 5.Further preferably, the lower end of punch forming punching pin 6 is lower than the lower end of cold-heading molding punching pin 5.
This punching press cold-heading device can first carry out punching press to product 13, and then carries out cold-heading.When punching press, product 13 is placed between upper die and lower die, and upper bolster 1 presses down, and stripper plate presses down thereupon, until withstood by de-material push rod 22.Upper bolster 1 continues to press down, and flexible member 4 is exerted pressure to large stripper plate 8, makes lower stripper 9 will take off material push rod 22 and spring 21 and depresses, and product 13 is pressed on die shoe 14.Upper bolster 1 continues to press down, and punch forming punching pin 6 stretches out in outside lower stripper 9, and the punching press die cavity 19 that enters piece 18 with punch forming matches, and stamps out turnup structure 27 as shown in Figure 3 on product 13.Then, will on upper bolster 1, draw, punch forming punching pin 6 is deviate from from punching press die cavity 19, and is retracted in lower stripper 9, and now lower stripper 9 is still pushed down product 13 under the effect of flexible member 4.In continuation, pull on die holder 1, large stripper plate 8 and little stripper plate 9, with moving on upper bolster 1, separate with die shoe 14, and de-material push rod 22 by product 13 jack-up, completes punching course under the effect of spring 21.
Then, by product 13 station that moves right, turnup structure 27 is aimed at cold-heading molding punching pin 5, then pressed down upper bolster 1, similar with punching course, make cold-heading molding punching pin 5 carry out cold-heading to turnup structure 27, also the lower surface of turnup structure 27 is carried out to shaping, obtain cold-heading structure 28, then at the upper upper bolster 1 that moves, this punching press cold-heading device is resetted, complete time processing process.In the process of whole punching press and cold-heading, upper lining 11, lower lining 25 move up and down and move up and down in upper fairlead 12 and lower fairlead 26 with guide post 10, realize guide effect.
The punching press cold-heading device that the utility model provides can carry out punching press and cold-heading to product in same equipment, and its production efficiency is higher, and owing to can product being carried out to shaping by cold-heading, makes the quality of product better.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.