CN213701446U - Anti-rebound hardware stamping die - Google Patents

Abstract

The utility model discloses a prevent resilience formula five metals stamping die, upper die base and die holder including upper and lower parallel arrangement, two guide pillars of the vertical fixedly connected with of symmetry between upper die base and the die holder, two the guide pillar slides jointly and has cup jointed die and the terrace die of mutually supporting, and the die is located the below of terrace die, two on the guide pillar and at the fixed cup joint of die lower extreme place the piece, and place piece and die contact, the spring has been cup jointed in the activity on the guide pillar, and the both ends of spring respectively with upper die base, terrace die fixed connection. The utility model discloses a set up electromagnetic plate and permanent magnetism board in terrace die and die back of the body one side mutually, replace the one-way mode of exerting pressure of press in the traditional art, more save installation space, the electromagnetic plate that repulses the setting mutually and permanent magnetism board exert the pressure of relative direction to the work piece between terrace die and the die respectively, two-way moulding has improved the plastic deformation volume of work piece, avoids the unqualified problem that the work piece kick-backs and arouses.

Description

Anti-rebound hardware stamping die

Technical Field

The utility model relates to a five metals stamping die technical field especially relates to a prevent resilience formula five metals stamping die.

Background

The hardware stamping die is a special process equipment for processing metal materials into parts (or semi-finished products) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.

The metal material has elastic deformation and plastic deformation during stamping, and after the external force is removed, the plastic deformation is preserved, but the elastic deformation can generate the rebound phenomenon. The change in bend angle is often expressed in terms of the rebound angle α. The rebound angle is the difference between the angle of the finger bending piece after the finger bending piece is separated from the bending die and the angle of the bending die. Particularly, the rebound phenomenon of the thin-wall shell bending piece is more serious, the deviation of the bending angle is large, the actual bending angle is larger than the theoretical bending angle, the product quality is poor, the difficulty is increased during assembly, and sometimes, the rebound quantity is too large, so that the product is unqualified.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of proposing in the background art, and the hardware stamping die who prevents rebounding that proposes.

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

the utility model provides a prevent five metals stamping die that kick-backs, includes upper die base and die holder from top to bottom parallel arrangement, two guide pillars of the vertical fixedly connected with of symmetry between upper die base and the die holder, two the guide pillar slides jointly and cup joints die and the terrace die of mutually supporting, and the die is located the below of terrace die, two on the guide pillar and fixed the cup joint at the die lower extreme place the piece, and place a contact with the die, the activity has cup jointed the spring on the guide pillar, and the both ends of spring respectively with upper die base, terrace die fixed connection, the equal fixed mounting in the opposite side of die and terrace die has an electromagnetic plate, equal fixed mounting in one side of upper die base and the die holder is relative has a permanent magnetic plate, is located same one side the electromagnetic plate corresponds and repels the setting with the permanent magnetic plate position, in the upper die base and the symmetry be equipped with.

Preferably, the folding shielding cover is fixedly installed on the outer sides of the electromagnetic plate and the permanent magnetic plate which are positioned on the same side in a sealing mode.

Preferably, the lubricating oil self-supporting device comprises a piston cavity arranged in an upper die base, a piston plate is connected in the piston cavity in a sealing and sliding mode, a sponge block is filled in a space, located at the upper end of the piston plate, in the piston cavity, a stress rod is fixedly connected to the lower end of the piston plate, the lower end of the stress rod penetrates through the piston cavity, a lubricating oil tank is fixedly mounted at the upper end of the upper die base and is communicated with the piston cavity through an oil inlet pipe, a ring cavity and an annular oil flow cavity are formed in the upper die base and above a guide pillar, a plurality of through holes are uniformly formed in the circumference between the ring cavity and the oil flow cavity, and the ring cavity is communicated with the piston cavity through an.

Preferably, the lower end of the stress rod is integrally formed with a stress plate.

Preferably, the inner wall of the piston cavity is convexly provided with an annular limiting bulge.

Preferably, the inner bottom surface of the oil flowing cavity is a circular table surface, and the lower end of the oil flowing cavity is communicated with the outside.

Compared with the prior art, this prevent resilience formula five metals stamping die's advantage lies in:

1. through set up electromagnetic plate and permanent magnetism board in terrace die and die one side of carrying on the back mutually, replace the one-way mode of exerting pressure of press among the traditional art, more save installation space, the electromagnetic plate that repels mutually the setting and permanent magnetism board exert the pressure of relative direction respectively to the work piece between terrace die and the die, two-way moulding has improved the plastic deformation volume of work piece, avoids the unqualified problem that the work piece kick-backs and arouses.

2. Advance oil pipe and go out oil pipe and have one-way circulation, avoid taking place the backward flow, the punching press makes the lubricating oil outflow very little at every turn, avoids causing the waste, and the whole guide pillar surface of lubricating oil coating under self action of gravity plays the lubrication action to between terrace die, die and the guide pillar, avoids seriously wearing and tearing because of frictional force is great in long-time use, with the help of the resilience force, need not artifical additional lubricating oil.

Drawings

Fig. 1 is a schematic structural view of the front side of an anti-rebound hardware stamping die provided by the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the device comprises an upper die base 1, a lower die base 2, a guide post 3, a placing block 4, a female die 5, a male die 6, a spring 7, an electromagnetic plate 8, a permanent magnetic plate 9, a folding shielding cover 10, a stress rod 11, a piston cavity 12, a piston plate 13, a limiting bulge 14, a sponge block 15, a lubricating oil tank 16, an oil inlet pipe 17, an annular cavity 18, an oil outlet pipe 19 and an oil outlet pipe 20.

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.

Referring to fig. 1-2, the anti-rebound hardware stamping die comprises an upper die base 1 and a lower die base 2 which are arranged in parallel up and down, two guide posts 3 are symmetrically, vertically and fixedly connected between the upper die base 1 and the lower die base 2, a female die 5 and a male die 6 which are mutually matched are sleeved on the two guide posts 3 in a sliding manner, the female die 5 is positioned below the male die 6, the two guide posts 3 and the lower end of the female die 5 are fixedly sleeved with the placing block 4, and place piece 4 and die 5 contact, the activity has cup jointed spring 7 on the guide pillar 3, and spring 7's both ends respectively with upper die base 1, terrace die 6 fixed connection, die 5 and terrace die 6 equal fixed mounting in one side mutually away from have an electromagnetic plate 8, the equal fixed mounting in one side of upper die base 1 and the lower bolster 2 is relative has a permanent magnetic plate 9, the electromagnetic plate 8 that lies in same one side corresponds and the setting of repelling mutually with permanent magnetic plate 9 position, just the symmetry is equipped with lubricating oil self-supporting device between two guide pillars 3 in the upper die base 1. By arranging the electromagnetic plate 8 and the permanent magnetic plate 9, a mode of applying pressure by a press in a single direction in the prior art is replaced, and the installation space is further saved.

The folding shielding cover 10 is fixedly arranged on the outer sides of the electromagnetic plate 8 and the permanent magnetic plate 9 which are positioned on the same side in a sealing manner, and the folding shielding cover 10 is arranged on the periphery of the electromagnetic plate 8 and the permanent magnetic plate 9 in a sealing manner, so that the influence on the normal work of other electronic equipment caused by the leakage of magnetic induction lines is avoided.

The lower end of the stress rod 11 is integrally formed with a stress plate, so that the contact area between the stress rod 11 and the male die 6 is increased.

The lubricating oil self-supply device comprises a piston cavity 12 arranged in an upper die holder 1, a piston plate 13 is connected in the piston cavity 12 in a sealing and sliding manner, an annular limiting bulge 14 is convexly arranged on the inner wall of the piston cavity 12, a sponge block 15 is filled in a space in the piston cavity 12, which is positioned at the upper end of the piston plate 13, a stress rod 11 is fixedly connected at the lower end of the piston plate 13, the lower end of the stress rod 11 penetrates through the piston cavity 12, a lubricating oil tank 16 is fixedly arranged at the upper end of the upper die holder 1, lubricating oil is filled in the lubricating oil tank 16, the lubricating oil tank 16 is communicated with the piston cavity 12 through an oil inlet pipe 17, an annular cavity 18 and an annular oil flowing cavity 19 are arranged in the upper die holder 1 and above a guide post 3, the inner bottom surface of the oil flowing cavity 19 is a circular table surface, referring to FIG. 2, the oil flowing cavity 19 flows to the outer surface of the guide post 3 along the, the annular chamber 18 communicates with the piston chamber 12 through an oil outlet pipe 20, and the annular chamber 18 and the plurality of through holes are provided in order to make the lubricating oil flow more uniformly through the through holes into the inner wall of the oil chamber 19. Check valves are installed in the oil inlet pipe 17 and the oil outlet pipe 20 to limit the flowing direction of the lubricating oil, so that the lubricating oil flows into the piston cavity 12 through the oil inlet pipe 17 in one way and flows into the annular cavity 18 through the piston cavity 12 in one way.

The utility model discloses a set up electromagnetic plate 8 and permanent magnetism board 9 in terrace die 6 and die 5 back of the body one side of the back of the body, replace the one-way mode of exerting pressure of press in the traditional art, more save installation space, the electromagnetic plate 8 and the permanent magnetism board 9 that repel each other and set up exert the pressure of relative direction respectively to the work piece between terrace die 6 and die 5, two-way moulding, improved the plastic deformation volume of work piece, avoid the unqualified problem that the work piece kick-backs and arouses; when the male die 6 and the female die 5 are in the initial state, the male die 6 is under the tension of the spring 7 and the female die 5 is supported by the placing block 4, so that a gap for placing the workpiece is reserved between the male die 6 and the female die.

The sponge block 15 has slow resilience and is in a compressed state before punching, when the male die 6 and the female die 5 move relatively to punch, lubricating oil in the lubricating oil tank 16 enters the sponge block 15 through the oil inlet pipe 17, the sponge block 15 is in a state of fully sucking the lubricating oil, the electromagnetic block 8 is powered off and the punching is stopped, the male die 6 collides the stress plate and the stress rod 11 under the resilience force of the spring 7, the lubricating oil fully sucked in the sponge block 15 is extruded into the annular cavity 18 through the oil outlet pipe 20, the lubricating oil uniformly falls into the oil cavity 19 under the action of a plurality of through holes, the inner wall of the oil cavity 19 flows into the surface of the guide pillar 3, and the female die 5 falls to the upper end of the placing block 4 under the action of self gravity.

It should be noted that the oil inlet pipe 17 and the oil outlet pipe 20 have one-way circulation to avoid backflow, the outflow of the lubricating oil is very small due to each punching, waste is avoided, the lubricating oil coats the outer surface of the whole guide pillar 3 under the action of self gravity to play a role in lubricating the male die 6, the female die 5 and the guide pillar 3, serious abrasion caused by large friction force in the long-time use process is avoided, and the lubricating oil does not need to be added manually by virtue of resilience force.

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 (6)

1. The anti-rebound hardware stamping die comprises an upper die base (1) and a lower die base (2) which are arranged in parallel, and is characterized in that two guide pillars (3) are symmetrically and vertically fixedly connected between the upper die base (1) and the lower die base (2), the two guide pillars (3) are jointly sleeved with a female die (5) and a male die (6) which are matched with each other in a sliding manner, the female die (5) is positioned below the male die (6), a placing block (4) is fixedly sleeved on the two guide pillars (3) and at the lower end of the female die (5), the placing block (4) is contacted with the female die (5), a spring (7) is movably sleeved on each guide pillar (3), two ends of each spring (7) are respectively fixedly connected with the upper die base (1) and the male die (6), an electromagnetic plate (8) is fixedly installed on one side of the female die (5) opposite to the male die (6), a permanent magnetic plate (9) is fixedly installed on one side, opposite to the upper die base (1), the electromagnetic plate (8) and the permanent magnetic plate (9) which are positioned on the same side are arranged in a corresponding and repellent mode, and lubricating oil self-supply devices are symmetrically arranged in the upper die base (1) and between the two guide columns (3).

2. The anti-rebound hardware stamping die according to claim 1, wherein a folding shielding cover (10) is fixedly mounted on the outer sides of the electromagnetic plate (8) and the permanent magnetic plate (9) on the same side in a sealing manner.

3. The anti-rebound hardware stamping die as claimed in claim 1, wherein the lubricating oil self-supporting device comprises a piston cavity (12) formed in an upper die holder (1), a piston plate (13) is connected in the piston cavity (12) in a sealing and sliding manner, a sponge block (15) is filled in a space in the piston cavity (12) and located at the upper end of the piston plate (13), a stress rod (11) is fixedly connected to the lower end of the piston plate (13), the lower end of the stress rod (11) penetrates through the piston cavity (12), a lubricating oil tank (16) is fixedly installed at the upper end of the upper die holder (1), the lubricating oil tank (16) is communicated with the piston cavity (12) through an oil inlet pipe (17), an annular cavity (18) and an annular oil flow cavity (19) are formed in the upper die holder (1) and above the guide post (3), and a plurality of through holes are uniformly formed in the circumference between the annular cavity (18) and the oil flow cavity (19), the annular cavity (18) is communicated with the piston cavity (12) through an oil outlet pipe (20).

4. The anti-rebound hardware stamping die according to claim 3, wherein the lower end of the stress rod (11) is integrally formed with a stress plate.

5. The anti-rebound hardware stamping die according to claim 3, wherein the inner wall of the piston cavity (12) is convexly provided with an annular limiting bulge (14).

6. The anti-rebound hardware stamping die as claimed in claim 3, wherein the inner bottom surface of the oil flowing cavity (19) is a circular table surface, and the lower end of the oil flowing cavity (19) is communicated with the outside.

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