CN210253832U

CN210253832U - Tensile damage preventing mechanism of stretching stamping die

Info

Publication number: CN210253832U
Application number: CN201920743253.6U
Authority: CN
Inventors: 邱炳献
Original assignee: Kunshan Daodun Precision Machinery Co Ltd
Current assignee: Kunshan Daodun Precision Machinery Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-04-07
Anticipated expiration: 2029-05-23

Abstract

The utility model discloses a tensile stamping die prevents pulling mechanism, including the upper die base, four guiding holes, every have been seted up to the symmetry on the upper die base equal slip in the guiding hole is inserted and is equipped with the guide arm, four common welding has the die holder on the guiding hole, the terrace die is installed to the below of upper die base, install rolling mechanism on the terrace die, fixedly connected with die on the die holder, two rolling mechanisms down are installed to the symmetry on the die, the recess of die is greater than the lug of terrace die. The utility model has the advantages of reasonable design, through set up on the terrace die roll mechanism and the die roll mechanism down and reduce the frictional force that the material received when the punching press, reduce stamping die to the damage of material, and upper and lower die-pressing roller roll punching press makes the chamfer accuracy of punching press higher.

Description

Tensile damage preventing mechanism of stretching stamping die

Technical Field

The utility model relates to a stamping die field especially relates to a tensile stamping die prevents pulling mechanism.

Background

The stamping die is a special technological equipment for processing materials into parts or semi-finished products in cold stamping processing, called as cold stamping die, stamping is a pressure processing method for obtaining required parts by applying pressure to the materials by utilizing a die arranged on a press machine at room temperature to cause the materials to generate separation or plastic deformation.

Most of the existing stamping dies do not have a strain-prevention mechanism, after stamping, the friction between materials and dies causes the surface smoothness of the stamped materials to be lower, and the materials can be cracked in the stamping process.

Therefore, we have designed an anti-pull mechanism for a drawing and stamping die to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a tensile damage prevention mechanism of a tensile stamping die.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tensile stamping die prevents mechanism that hinders, includes the upper die base, four guiding holes have been seted up to the symmetry on the upper die base, every equal slip inserts in the guiding hole and is equipped with the guide arm, four common welding has the die holder on the guiding hole, the terrace die is installed to the below of upper die base, install rolling mechanism on the terrace die, fixedly connected with die on the die holder, two rolling mechanisms down are installed to the symmetry on the die, the recess of die is greater than the lug of terrace die.

Preferably, it includes the oil pocket to go up the rolling mechanism, and goes up the oil pocket and set up in the inside of terrace die, upward oil inlet has been seted up on the terrace die, and upward oil inlet and last oil pocket through connection, two oil circuit grooves that go up have been seted up to the symmetry in the terrace die, two last roller grooves have been seted up to the lower extreme lug symmetry of terrace die, and two oil circuit grooves that go up link to each other with two last roller grooves respectively, every go up the roller inslot and all rotate and install the die roller.

Preferably, the lower rolling mechanism comprises two lower oil cavities which are symmetrically arranged, the two lower oil cavities are arranged on two sides of the inner part of the female die, two lower oil inlets are symmetrically arranged on the female die, each lower oil inlet is communicated with the lower oil cavities, two lower oil channels are symmetrically arranged in the female die, two lower roller grooves are symmetrically arranged on the groove of the female die, the two lower oil channels are respectively connected with the two lower roller grooves, and each lower roller groove is internally provided with a lower die pressing roller in a rotating mode.

Preferably, the length of the upper die roller is equal to the width of the upper oil path groove, one end of the upper oil path groove, which is located in the upper roller groove, is inserted with a brush, and the lower end of the brush is attached to the upper die roller.

Preferably, the distance from the inner top wall of the lower oil cavity to the lower die holder is smaller than the distance from the circle center of the lower die pressing roller to the lower die holder, and one end of the lower oil channel connected with the lower roller groove is located at the lowest end of the lower roller groove.

Preferably, each guide rod is sleeved with a spring, and two ends of each spring are respectively fixed on the upper die base and the lower die base.

The utility model discloses following beneficial effect has:

1. the upper die pressing roller of the upper rolling mechanism and the lower die pressing roller of the lower rolling mechanism are adopted to roll and press materials simultaneously, so that the material pressing contact is rolling friction, the friction tension force received by the material surface is reduced, the smoothness of the materials is increased, and the chamfering is more accurate due to the arc pressing of the upper die pressing roller and the lower die pressing roller.

2. And a lower oil cavity and an upper oil cavity are respectively formed in the female die and the male die and used for conveying lubricating oil into the lower die roller and the upper die roller, and the lubricated die rollers have less damage to materials during stamping and enable the surfaces of the materials to have no friction marks or pull cracks.

To sum up, the utility model has the advantages of reasonable design, through set up on the terrace die roll mechanism and the die roll mechanism down and reduce the frictional force that the material received when the punching press, reduce stamping die to the damage of material, and upper and lower die-pressing roller roll punching press makes the chamfer accuracy of punching press higher.

Drawings

Fig. 1 is a schematic structural view of a pull damage prevention mechanism of a drawing and stamping die according to the present invention;

fig. 2 is an enlarged view of a part of a lower rolling mechanism of a pull damage prevention mechanism of a drawing and stamping die according to the present invention;

fig. 3 is an enlarged view of a part of an upper rolling mechanism of a pull damage prevention mechanism of a drawing and stamping die according to the present invention;

fig. 4 is an enlarged view of a brush portion of a pull-damage prevention mechanism of a drawing and stamping die according to the present invention.

In the figure: 1 upper die base, 2 lower die base, 3 guide rods, 4 springs, 5 guide holes, 6 male dies, 7 female dies, 8 lower oil cavities, 9 lower die pressing rollers, 10 upper oil cavities, 11 upper die pressing rollers, 12 lower oil inlet holes, 13 upper oil path grooves, 14 upper oil inlet holes, 15 lower oil path grooves and 16 hairbrushes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a tensile damage prevention mechanism of a stretching stamping die comprises an upper die base 1, four guide holes 5 are symmetrically formed in the upper die base 1, a guide rod 3 is inserted into each guide hole 5 in a sliding manner, a lower die base 2 is welded to each guide hole 5, a spring 4 is sleeved on each guide rod 3, two ends of each spring 4 are respectively fixed to the upper die base 1 and the lower die base 2, a male die 6 is installed below the upper die base 1, an upper rolling mechanism is installed on each male die 6, a female die 7 is fixedly connected to the lower die base 2, two lower rolling mechanisms are symmetrically installed on the female die 7, and a groove of the female die 7 is larger than a convex block of the male die 6.

Go up the rolling mechanism and include upper oil pocket 10, and upper oil pocket 10 sets up in the inside of terrace die 6, last oilhole 14 has been seted up on the terrace die 6, and go up oilhole 14 and upper oil pocket 10 through connection, two upper oil circuit grooves 13 have been seted up to the symmetry in the terrace die 6, two upper roller grooves have been seted up to the lower extreme lug symmetry of terrace die 6, and two upper oil circuit grooves 13 link to each other with two upper roller grooves respectively, every upper roller inslot all rotates installs die roller 11, the length of upper die roller 11 equals the width of upper oil circuit groove 13, every one end that upper oil circuit groove 13 is located the upper roller groove is all inserted and is established and install brush 16, and the lower extreme of brush 16 is attached on upper die roller 11.

The lower rolling mechanism comprises two lower oil cavities 8 which are symmetrically arranged, the two lower oil cavities 8 are arranged on two sides of the inside of the female die 7, two lower oil inlets 12 are symmetrically arranged on the female die 7, each lower oil inlet 12 is communicated with the corresponding lower oil cavity 8, two lower oil grooves 15 are symmetrically arranged in the female die 7, two lower roller grooves are symmetrically arranged in the grooves of the female die 7, the two lower oil grooves 15 are respectively connected with the two lower roller grooves, a lower die roller 9 is rotatably arranged in each lower roller groove, the distance from the inner top wall of the lower oil cavity 8 to the lower die holder 2 is smaller than the distance from the circle center of the lower die roller 9 to the lower die holder 2, and the end, connected with the lower roller grooves, of the lower oil groove 15 is located at the lowest end of the lower roller groove.

When the utility model is used, a material to be punched is placed on the groove of the female die 7, then the oil press is started, the oil press moves downwards on the upper die base 1, at the moment, the guide hole 5 is downward along the guide rod 3, the spring 4 is compressed, when the convex block of the male die 6 punches the material downwards, the lower die roller 9 and the upper die roller 11 roll, the lower die roller 9 rotates to drive the lubricating oil flowing from the lower oil cavity 8 in the lower roller groove through the lower oil way groove 15 to wrap the surface, so that the rolling friction force between the lower die roller 9 and the material is reduced, meanwhile, the upper die roller 11 drives the lubricating oil which is infiltrated on the upper roller groove brush 16 and flows through the upper oil way groove 13 by the upper oil cavity 10, the rolling friction force between the upper die roller 11 and the material is reduced, the punched material is cleaner and cleaner, no friction mark and crack exist, meanwhile, the upper die roller 11 and the lower die roller 9 tightly cling the material punching, and the two arc surfaces are punched, so that the chamfering of the material is more accurate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a tensile stamping die prevents pulling mechanism, includes upper die base (1), its characterized in that, four guiding holes (5) have been seted up to the symmetry on upper die base (1), every equal slip is inserted in guiding hole (5) and is equipped with guide arm (3), four common welding has die holder (2) on guiding hole (5), terrace die (6) are installed to the below of upper die base (1), install rolling mechanism on terrace die (6), fixedly connected with die (7) are gone up in die holder (2), two rolling mechanisms down are installed to the symmetry on die (7), the recess of die (7) is greater than the lug of terrace die (6).

2. The pulling damage preventing mechanism of the stretching and stamping die as claimed in claim 1, wherein the upper rolling mechanism comprises an upper oil cavity (10), the upper oil cavity (10) is arranged inside the male die (6), the male die (6) is provided with an upper oil inlet hole (14), the upper oil inlet hole (14) is communicated with the upper oil cavity (10), the male die (6) is symmetrically provided with two upper oil path grooves (13), the lower end bump of the male die (6) is symmetrically provided with two upper roller grooves, the two upper oil path grooves (13) are respectively connected with the two upper roller grooves, and each upper roller groove is rotatably provided with an upper die roller (11).

3. The pulling damage preventing mechanism of the drawing and stamping die as claimed in claim 1, wherein the lower rolling mechanism comprises two lower oil cavities (8) which are symmetrically arranged, the two lower oil cavities (8) are respectively arranged at two sides of the inside of the female die (7), two lower oil inlets (12) are symmetrically arranged on the female die (7), each lower oil inlet (12) is connected with the lower oil cavity (8) in a through manner, two lower oil path grooves (15) are symmetrically arranged in the female die (7), two lower roller grooves are symmetrically arranged on the groove of the female die (7), the two lower oil path grooves (15) are respectively connected with the two lower roller grooves, and a lower die pressing roller (9) is rotatably arranged in each lower roller groove.

4. The pulling damage prevention mechanism of a drawing and stamping die as claimed in claim 2, wherein the length of the upper die cylinder (11) is equal to the width of the upper oil way grooves (13), one end of each upper oil way groove (13) positioned in the upper roller groove is inserted with a hairbrush (16), and the lower ends of the hairbrushes (16) are attached to the upper die cylinder (11).

5. The pulling damage prevention mechanism of the stretching and stamping die as claimed in claim 3, wherein the distance from the inner top wall of the lower oil cavity (8) to the lower die holder (2) is smaller than the distance from the center of the lower die roller (9) to the lower die holder (2), and one end of the lower oil channel groove (15) connected with the lower roller groove is located at the lowest end of the lower roller groove.

6. The pulling damage prevention mechanism of the drawing and stamping die as claimed in claim 1, wherein each guide rod (3) is sleeved with a spring (4), and two ends of each spring (4) are respectively fixed on the upper die holder (1) and the lower die holder (2).