Framework one-time forming die

Abstract

The utility model relates to the technical field of stamping dies, and discloses a framework one-time forming die which comprises a lower die and an upper die which are used for forming an oil seal framework. The lower die is installed on a base, a receding groove with an upward notch is formed in the base, and the lower die is installed in the receding groove in a sliding mode. An ejector block is fixedly arranged in the receding groove, is located under the lower die and is in abutting and limiting fit with the lower die; a plurality of spring rods are vertically arranged in the receding groove, and the non-telescopic ends of the spring rods are fixedly connected with the base. The telescopic end of each spring rod is fixedly connected with a supporting block, and the lower die is in abutting transmission fit with all the supporting blocks. The lower die is hinged to one supporting block, a driving piece for driving the lower die to rotate is arranged in the receding groove, and the driving piece is in transmission fit with the lower die. During demolding, the driving piece can drive the lower mold to rotate suddenly, so that a formed oil seal framework is thrown out under the action of inertia, automatic demolding is achieved, the structure is simple, the automation degree is high, and the production efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch mould technical field, in particular to a skeleton one -time forming die. BACKGROUND

[0002] The oil seal skeleton is an important component of the oil seal skeleton, and its main function is to provide necessary support and shape retention for the oil seal. During the process of stamping forming, if it is a simple skeleton shape, one-time stamping forming is generally adopted.

[0003] The inner and outer oil seal skeleton stamping forming die is disclosed in the publication No. CN218134585U, which comprises an upper die, the upper die is an upper die body, each push plate is provided with a push block on the inner side, the push block is a wedge-shaped structure, the push block is made of rubber material, and a circular hole is arranged in the push block; during stamping, the push block is compressed and extruded, so that the push block is conveniently embedded in the inside of the moving groove, conveniently passes through the oil seal skeleton, and when the stamping is completed, the rubber material push block is automatically reset after the upper die rises, and returns to the original state, so that the push block and the oil seal skeleton are in anti-skid contact and fixed, so that the upper die rises, and the oil seal skeleton rises together.

[0004] Based on the above technical features, the problem is that the existing mould needs to be manually removed from the mould after the oil seal skeleton is formed, which has low automation degree and low production efficiency.

[0005] Therefore, it is necessary to solve the above problems by using a skeleton one-time forming die. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a skeleton one-time forming die to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a skeleton one-time forming die, comprising a lower die and an upper die for oil seal skeleton forming, the upper die is opposite to the lower die; the lower die is installed on a base, a clearance groove with an upward notch is formed in the base, and the lower die is slidingly installed in the clearance groove; the upper die is fixedly installed on a pressing plate, and the pressing plate is fixed on the stamping rod of a punch press; a top block is fixedly arranged in the clearance groove, the top block is located directly below the lower die and abuts against the lower die for limiting cooperation; a plurality of spring rods are vertically arranged in the clearance groove, the extension ends of the plurality of spring rods are upward, and the non-extension ends of the plurality of spring rods are fixedly connected with the base; the plurality of spring rods are arranged in a circumferential array about the center of gravity of the lower die, the extension end of each spring rod is fixedly connected with a supporting block, and the lower die abuts against all the supporting blocks for transmission cooperation; the lower die is hinged to one of the supporting blocks, and a driving member for driving the lower die to rotate is arranged in the clearance groove, and the driving member is in transmission cooperation with the lower die.

[0008] Preferably, the driving member comprises a vertical elastic plate, a horizontal stopper and a stop plate; the top end of the elastic plate is fixedly connected with the lower die, the bottom end of the elastic plate is fixedly connected with the stopper; the stop plate is fixedly arranged on the inner wall of the giving-way groove and corresponds to the position of the support block hinged with the lower die; the bottom of the stopper is provided with a transmission inclined surface which slidably abuts against the stop plate; and the top of the stopper abuts against and drives the top of the stop plate.

[0009] Preferably, a torsional spring is arranged at the hinge of the lower die and the support block; one end of the torsional spring is fixedly connected with the lower die, and the other end is fixedly connected with the support block hinged with the lower die.

[0010] Preferably, a downwardly inclined discharging table is fixedly arranged on the base and corresponds to the position of the support block hinged with the lower die.

[0011] The technical effects and advantages of the utility model are as follows: the driving member is arranged in the giving-way groove, at the same time, the lower die is hinged with a support block, when demolding, the driving member can drive the lower die to suddenly rotate, so that the formed oil seal framework is thrown out under the action of inertia, automatic discharging is realized, the structure is simple, the degree of automation is high, and the production efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0013] Fig. 2 It is a base internal schematic view of the utility model;

[0014] Fig. 3 It is a lower die bottom schematic view of the utility model.

[0015] In the drawing: 1, base; 2, discharging table; 3, giving-way groove; 4, spring rod; 5, support block; 6, rotating shaft; 7, lower die; 8, hinge seat; 9, top block; 10, elastic plate; 11, stopper; 12, stop plate; 13, pressing plate; 14, upper die. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0017] The utility model provides a Figs. 1 to 3The application discloses a skeleton one-time forming die, which comprises a lower die 7 for forming an oil seal skeleton and an upper die 14.

[0018] The upper die 14 is fixedly installed on a pressing plate 13, and the pressing plate 13 is fixed on a pressing rod of a stamping machine.

[0019] The lower die 7 is installed on a base 1, and a clearance groove 3 is formed in the base 1 and faces upwards; the lower die 7 is slidingly installed in the clearance groove 3. A top block 9 is vertically arranged in the clearance groove 3, and the top block 9 is in a cylindrical shape and is fixedly connected with the base 1. The top block 9 is located directly below the lower die 7 and abuts against the lower die 7 to limit the lower die 7.

[0020] A plurality of spring rods 4 are vertically arranged in the clearance groove 3, the extension ends of the plurality of spring rods 4 all face upwards, and the non-extension ends of the plurality of spring rods 4 are all fixedly connected with the base 1. The plurality of spring rods 4 are arranged in a circumferential array about the gravity center of the lower die 7, the extension end of each spring rod 4 is fixedly connected with a support block 5, the lower die 7 abuts against all the support blocks 5 to drive the lower die 7.

[0021] The lower die 7 is hingedly connected with one of the support blocks 5 in the following manner: a hinge seat 8 is fixedly welded to the bottom of the lower die 7; a U-shaped support seat is fixedly welded to the support block 5, a rotating shaft 6 is horizontally arranged between the two distal ends of the support seat, and the rotating shaft 6 is fixedly connected with the support seat. The rotating shaft 6 penetrates through the hinge seat 8 and is rotationally connected with the hinge seat 8.

[0022] A torsional spring is sleeved on the rotating shaft 6, one end of the torsional spring is fixedly connected with the hinge seat 8, and the other end of the torsional spring is fixedly connected with the support seat.

[0023] The clearance groove 3 is provided with a driving member for driving the lower die 7 to rotate, the driving member is in driving cooperation with the lower die 7 to drive the lower die 7 to rotate.

[0024] The driving member comprises the vertically arranged elastic plate 10, the horizontal stop block 11 and the baffle 12. The top end of the elastic plate 10 is fixedly connected with the bottom edge of the lower die 7, the bottom end of the elastic plate 10 is fixedly connected with the stop block 11, and the elastic plate 10 and the stop block 11 form an L-shaped structure. The baffle 12 is fixedly welded to the inner wall of the clearance groove 3, and the position of the baffle 12 corresponds to the position of the support block 5 to which the lower die 7 is hingedly connected. The bottom of the stop block 11 is provided with a transmission inclined surface which is in sliding abutment with the baffle 12. The top of the stop block 11 is in driving cooperation with the top of the baffle 12.

[0025] A downwardly inclined blanking table 2 is fixedly arranged on the base 1, and the position of the blanking table 2 corresponds to the position of the support block 5 to which the lower die 7 is hingedly connected.

[0026] Working principle: when the stamping forming of the oil seal framework is carried out, the blank is placed on the lower die 7. Then the pressing plate 13 is driven by the stamping rod of the stamping machine to move close to the lower die 7, and the upper die 14 is driven by the pressing plate 13 to move close to the lower die 7.

[0027] After the upper die 14 contacts the blank on the lower die 7, the upper die 14 pushes the blank, the blank pushes the lower die 7, and the lower die 7 pushes all the supporting blocks 5 to move downward. At this time, the telescopic end of the spring rod 4 where the supporting block 5 is located is retracted downward, and the spring inside each spring rod 4 is compressed. At the same time, the lower die 7 drives the elastic plate 10, and the elastic plate 10 drives the stop block 11 to move downward.

[0028] After the bottom of the stop block 11 contacts the baffle 12, the baffle 12 pushes the stop block 11 to slide away from the baffle 12, and at this time the elastic plate 10 appears elastic bending. After the stop block 11 and the baffle 12 slide away, the elastic plate 10 returns to vertical, and the stop block 11 moves to below the baffle 12.

[0029] When the lower die 7 contacts the top block 9, the upper die 14 and the lower die 7 jointly extrude the blank to form the oil seal framework. At the same time, the stop block 11 is located below the baffle 12 and is a certain distance away.

[0030] After stamping and forming, the upper die 14 is away from the lower die 7 with the pressing plate 13, and the pressing plate 13 is away from the lower die 7 with the stamping rod. During this process, the lower die 7 remains in a static state for a short time because the force of the spring inside the spring rod 4 does not have a sudden change.

[0031] After the static state of the lower die 7 ends, the telescopic end of the spring rod 4 extends upward and pushes the lower die 7 to move upward through the supporting block 5. During this process, the lower die 7 drives the elastic plate 10, and the elastic plate 10 drives the stop block 11 to move upward. When the stop block 11 contacts the baffle 12 again, the baffle 12 pushes the stop block 11 to revolve around the rotation axis 6. The stop block 11 drives the elastic plate 10 to revolve around the rotation axis 6, and the elastic plate 10 drives the lower die 7 to revolve around the rotation axis 6. The lower die 7 drives the oil seal framework to revolve around the rotation axis 6 synchronously, and the torsional spring is twisted.

[0032] When the stop block 11 and the baffle 12 slide away, the lower die 7 stops rotating, and at this time the oil seal framework is thrown to the discharging table 2 under the action of inertia. Then the lower die 7 reverses and resets under the action of the elastic force of the torsional spring.

[0033] Finally, it should be pointed out that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements of some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A one-step forming die for a skeleton, comprising a lower die (7) for forming an oil seal skeleton and an upper die (14) which is vertically opposed to the lower die (7); characterized in that: The lower die (7) is installed on a base (1), the base (1) is provided with an upwardly opening accommodation groove (3), and the lower die (7) is slidingly installed in the accommodation groove (3); the upper die (14) is fixedly installed on a pressing plate (13), and the pressing plate (13) is fixed on a pressing rod of a stamping machine; a top block (9) is fixedly arranged in the accommodation groove (3), the top block (9) is located directly below the lower die (7) and abuts against the lower die (7) for limiting cooperation; a plurality of spring rods (4) are vertically arranged in the accommodation groove (3), the extension ends of the plurality of spring rods (4) are all upward, and the non-extension ends of the plurality of spring rods (4) are all fixedly connected with the base (1); the plurality of spring rods (4) are arranged in a circumferential array about the gravity center of the lower die (7), the extension end of each spring rod (4) is fixedly connected with a supporting block (5), and the lower die (7) abuts against all the supporting blocks (5) for transmission cooperation; the lower die (7) is hinged to one of the supporting blocks (5), and a driving member for driving the lower die (7) to rotate is arranged in the accommodation groove (3) and is in transmission cooperation with the lower die (7).

2. The skeleton one-trip die of claim 1, wherein: The driving member comprises a vertical elastic plate (10), a horizontal stop block (11) and a baffle (12); the top end of the elastic plate (10) is fixedly connected with the lower die (7), and the bottom end of the elastic plate (10) is fixedly connected with the stop block (11); the baffle (12) is fixedly arranged on the inner wall of the accommodation groove (3) and corresponds to the position of the supporting block (5) hinged to the lower die (7); the bottom of the stop block (11) is provided with a transmission inclined surface, the transmission inclined surface is in sliding abutment with the baffle (12), and the top of the stop block (11) is in transmission cooperation with the top of the baffle (12).

3. The skeleton one-trip die of claim 2, wherein: The hinged position of the lower die (7) and the supporting block (5) is provided with a torsional spring; one end of the torsional spring is fixedly connected with the lower die (7), and the other end is fixedly connected with the supporting block (5) hinged to the lower die (7).

4. The skeleton single-action molding die according to claim 1, characterized by: A downwardly inclined discharging table (2) is fixedly arranged on the base (1) and corresponds to the position of the supporting block (5) hinged to the lower die (7).

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