CN217831701U

CN217831701U - Elastic loading and unloading device in forging automatic line

Info

Publication number: CN217831701U
Application number: CN202221223587.9U
Authority: CN
Inventors: 沈军舰; 余永刚; 张超
Original assignee: Hubei Dachengmingjiang Forging Technology Co ltd
Current assignee: Hubei Dachengmingjiang Forging Technology Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-11-18
Anticipated expiration: 2032-05-20

Abstract

The utility model belongs to the technical field of forging device to a discharge apparatus in elasticity in forging transfer machine is specifically disclosed. The method comprises the following steps: the upper die base is driven by a power mechanism; the punch component is fixedly arranged on the upper die base; the discharging assembly comprises a discharging ring, a discharging plate and a discharging plate pull rod, the discharging ring is sleeved on the punch assembly, the discharging plate and the discharging plate pull rod are symmetrically arranged around the discharging ring, one end of the discharging plate pull rod is vertically and fixedly connected with the upper die base, the other end of the discharging plate pull rod movably penetrates through the discharging plate, and the discharging plate is fixedly connected with the punch assembly; the plurality of nitrogen springs are symmetrically arranged around the punch assembly, one end of each nitrogen spring is connected with the upper die base, and the other end of each nitrogen spring is connected with the stripper plate; and the lower die holder is arranged corresponding to the upper die holder and used for fixing a workpiece. The utility model discloses utilize nitrogen spring to provide the strength source for unloading of hot forging side cut, make more reliable and more stable of unloading.

Description

Elastic loading and unloading device in forging automatic line

Technical Field

The utility model belongs to the technical field of forging device, more specifically relates to an unloader on elasticity in forging transfer machine.

Background

The punching process is a common process in the forging process, a typical bearing ring of the forging is an annular forging with a hole in the center, kong Duanchu cannot be directly punched in the forging forming process, and the hole needs to be punched in the punching process. In the actual production punching process, after the die punch punches the middle connecting skin of the forge piece, the forge piece is generally wrapped on the punch and needs to be detached from the punch by external force. The traditional unloading mode can be used for unloading the forged piece, but the forged piece is not fixed in position after falling off from the punch head, so that problems can be caused during automatic production, the position is not fixed, the forged piece cannot be positioned for subsequent procedures, and automatic production cannot be realized. At present, 4 discharging modes are commonly used:

(1) The method for fixing the lower stripper plate fixes the stripper plate on the lower die or the lower die base, and clamps the forge piece from the punch head, has the advantages of simple structure and weak applicability, and has the defects of small operation space, the stripper plate needs to be replaced when the product is replaced, and the position of the forge piece falling from the punch head is not fixed, thus being not suitable for automatic production; (2) The elastic lower discharging plate mode is characterized in that a spring is arranged below a discharging plate to support the discharging plate in order to solve the problem that the operating space of a fixed lower discharging mode is small, so that the problem of narrow operating space is solved, and other defects of the fixed lower discharging plate cannot be solved at the moment; (3) A material pushing mode is adopted on the fixed stop lever, the discharging plate is arranged on the upper die base, and the forging piece is pushed out of the punch in the process of rising the punch by using the stop lever arranged on the device, so that the operation space is further increased, the problem that the position of the forging piece is not fixed when the forging piece falls off from the punch can not be solved, and the requirement of modern automatic production can not be met; (4) The mode of unloading in elasticity is installed the stripper on the upper die base, installs several rectangle spring between stripper and the die holder, compression spring when punching a hole, and the drift utilizes the restoring force of spring to lift the forging off from the drift when rising, and various shortcomings of above three kinds of schemes are solved to this kind of mode, can keep the position on the lower mould after the forging punches a hole in addition, is a mode that can be applicable to automated production, but also has some problems. The spring of adoption is the rectangle spring, and the strength that spring compression can provide is limited, needs a lot of group springs to satisfy the requirement of the power of unloading usually, needs more than 6 usually, and the installation space that the spring needs like this will be very big, and the pretightning force that needs the every spring of adjustment is unanimous moreover, otherwise the atress is inconsistent to block easily. Secondly, each installation and replacement takes a long time.

SUMMERY OF THE UTILITY MODEL

To the above defect or the improvement demand of prior art, the utility model provides an unloader on elasticity in forging transfer machine, wherein combine hot forging side cut self characteristic and the nitrogen spring technology characteristics of unloading, corresponding design utilize nitrogen spring to provide unloader on the elasticity of strength source for the unloading of hot forging side cut, and to its key subassembly like the upper die base, the drift subassembly, the structure of subassembly and nitrogen spring of unloading and concrete mode of setting are studied and designed, it is corresponding can adopt nitrogen spring as the power of unloading source, the power of unloading can be selected according to nitrogen spring's model accuracy size, and can adjust the power of unloading through the gas pressure that changes nitrogen spring, it is too big to avoid the power of unloading, damage the forging, thereby make the more reliable and more stable of unloading, with the automatic discharge function that is applicable to in the forging line.

In order to achieve the above object, the utility model provides an unload device in elasticity in forging transfer machine, include: the upper die base is driven by a power mechanism;

the punch head assembly is fixedly arranged on the upper die base;

the discharging assembly comprises a discharging ring, a discharging plate and a discharging plate pull rod, the discharging ring is sleeved on the punch assembly, the discharging plate and the discharging plate pull rod are symmetrically arranged around the discharging ring, one end of the discharging plate pull rod is vertically and fixedly connected with the upper die base, the other end of the discharging plate pull rod movably penetrates through the discharging plate so as to limit the stroke of the discharging plate, and the discharging plate is fixedly connected with the punch assembly;

the plurality of nitrogen springs are symmetrically arranged around the punch assembly, one end of each nitrogen spring is connected with the upper die base, and the other end of each nitrogen spring is connected with the stripper plate;

and the lower die base is arranged corresponding to the upper die base and is used for fixing a workpiece to be punched.

Preferably, the punch assembly includes a punch blade, a punch holder and a pressing ring, the punch holder is fixedly mounted on the pressing ring through the pressing ring, and the punch blade is arranged at one end of the punch holder which is not connected with the pressing ring.

Preferably, the discharge ring is provided with a sliding guide hole, and the punch holder movably penetrates through the sliding guide hole.

Preferably, the stripper pull rod comprises a pull rod and a limiting end which are fixedly connected, the stripper can movably penetrate through the pull rod, in this way, when the upper die base moves downwards, the limiting end limits the stripper to move downwards, so that the nitrogen spring is compressed through the upper die base and the stripper, the punch assembly continues to move downwards to punch, after punching is completed, the upper die base drives the punch assembly to move upwards, and at the moment, the upper die base continues to press the upper die base against a workpiece under the action of restoring elasticity until the nitrogen spring is restored to an initial state.

Preferably, the discharging plate is provided with a groove, and one end of the nitrogen spring is fixedly connected with the bottom of the groove.

Preferably, the upper die base is provided with a guide sleeve, the lower die base is provided with a guide pillar, and the guide sleeve is movably sleeved on the guide pillar.

As a further preferred option, a lower punching pad assembly is arranged on the lower die holder, a punching positioning pin is arranged on the lower punching pad assembly, a workpiece tooling plate is arranged on the punching positioning pin, and the workpiece tooling plate is used for positioning, fixing and clamping the workpiece.

As further preferred, still include nitrogen gas spring unable adjustment base, nitrogen gas spring unable adjustment base one end through first bolt with upper die base fixed connection, the other end through the second bolt with nitrogen gas spring fixed connection.

Generally, through the utility model discloses above technical scheme that conceive compares with prior art, mainly possesses following technical advantage:

1. the utility model discloses a nitrogen gas spring is as the power of unloading source, and the power of unloading can be according to the accurate selection power of unloading size of nitrogen gas spring's model, and can adjust the power of unloading through the gas pressure that changes nitrogen gas spring, avoids the power of unloading too big, damages the forging to make and unload more reliable and stable, with the realization be applicable to the automatic discharge function in the forging line.

2. The utility model discloses in, work as during the upper die base downstream, spacing end restriction stripper downstream to compress through upper die base and stripper nitrogen spring, the drift subassembly continues the downstream and punches a hole, punches a hole and accomplishes the back, the drift subassembly upward movement is driven to the upper die base, and at this moment, the upper die base continues to be with restoring under the spring action the upper die base supports and presses on the work piece, until nitrogen spring resumes to initial condition.

3. The utility model discloses in, nitrogen spring possesses initial pressure, and the stroke that can be very little provides great power, avoids the tradition to unload power too big, damages the forging.

4. The utility model discloses in, the stripper has high temperature resistance, simultaneously, locates nitrogen spring between upper die base and the stripper for nitrogen spring and stripper contactless avoid the temperature of stripper to transmit nitrogen spring, influence nitrogen spring life.

5. The utility model discloses in, the drift is the components of a whole that can function independently design, changes into drift and drift seat two parts, and the drift blade is the vulnerable part usually, makes components of a whole that can function independently structure reduce cost and easily change.

6. The utility model discloses in, the stripper is the components of a whole that can function independently design, changes the stripper into and unloads the material circle, and the commonality is strong, and the retooling is more convenient, swift when changing the product.

Drawings

FIG. 1 is a schematic structural view of an elastic loading and unloading device in a forging line according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of an elastic loading and unloading device in a forging line according to a preferred embodiment of the present invention when a workpiece is placed thereon.

In all the figures, the same reference numerals denote the same features, in particular: 1-an upper die holder; 2-nitrogen spring fixing base; 3-a first bolt; 4-a second bolt; 5-stripper pull rod; 6-a nitrogen spring; 7-punch seat; 8-pressing a ring; 9-a stripper plate; 10-unloading ring; 11-a third bolt; 12-cutting edge of punch; 13-a fourth bolt; 14-a lower die holder; 15-workpiece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in FIG. 1 and FIG. 2, an embodiment of the present invention provides an elastic loading and unloading device in a forging automation line, which comprises a base, wherein the base is fixed to provide a stable and fixed foundation. Be equipped with upper die base 1 and die holder 14 on the base, die holder 14 is fixed to be set up on the base, and upper die base 1 corresponds the setting with die holder 14, and sets up on die holder 14, and upper die base 1 is driven by power unit, and with this mode for upper die base 1 can be along vertical direction motion, forges or punches a hole the work piece. The utility model discloses in, power unit includes the hydraulic drive unit, and other actuating mechanism that can drive the 1 motion of upper die base are certainly also applicable to the utility model discloses. In a preferred embodiment of the present invention, the upper die base 1 is provided with a guide sleeve, the lower die base 14 is provided with a guide pillar, and the guide sleeve is movably sleeved on the guide pillar. Namely, a guide hole is arranged on the guide sleeve, and the guide pillar is arranged in the guide hole. And a friction piece for reducing the friction action is arranged between the guide sleeve and the guide pillar.

The utility model discloses the device still includes the drift subassembly, and this drift subassembly is fixed to be located on the upper die base 1. The subassembly of unloading, this subassembly of unloading include unload circle 10, stripper 9 and stripper pull rod 5, unload circle 10 cover and establish on the drift subassembly, stripper 9 and stripper pull rod 5 about unload 10 symmetrical arrangement in circle, 5 one end of stripper pull rod with 1 perpendicular fixed connection of upper die base, other end activity pass stripper 9, in order to restrict the stroke of stripper 9, stripper 9 with drift subassembly fixed connection. And the nitrogen springs 6 are symmetrically arranged relative to the punch assembly, one end of each nitrogen spring 6 is connected with the upper die holder 1, and the other end of each nitrogen spring 6 is connected with the stripper 9. In this way, in operation, the nitrogen spring 6 is in an initial state, i.e., the nitrogen spring 6 may have a certain spring force, which pushes the stripper plate 9 against the top end of the stripper tension rod 5, and the stripper tension rod 5 restricts the stripper plate 9 from further downward movement. The upper die base 1 and the stripper are driven by the power mechanism to move downwards, after the stripper ring 10 contacts with a workpiece, the upper die base continues to move downwards, the stripper ring 10 is not moved, at the moment, the nitrogen spring 6 is further compressed under the action of the upper die base, the punch assembly continues to move downwards along the stripper ring so as to forge or punch the workpiece, after the workpiece is forged or punched, the upper die base is driven by the power mechanism to move upwards, in the process, the nitrogen spring 6 recovers elasticity firstly, namely, in the process of moving upwards, the nitrogen spring 6 continues to abut the stripper 9 against the top end of the stripper pull rod 5, the stripper ring 10 still contacts with the workpiece, namely, the position of the stripper is still unchanged until the punch breaks away from the forge piece, the stripper plate presses the forge piece on the lower die through the pressure provided by the nitrogen spring and cannot be taken up by the punch, the punch assembly continues to move upwards until the nitrogen spring recovers, the workpiece is always kept on the lower die until the upper die base returns, and the forging or the process is completed. Namely the utility model discloses in, adopt the nitrogen gas spring as the power of unloading source, the power of unloading can be according to the accurate selection power of unloading size of nitrogen gas spring's model, and can adjust the power of unloading through the gas pressure that changes the nitrogen gas spring, and in this way, avoid the power of unloading too big, damage the forging. Further, the utility model discloses in, the nitrogen gas spring possesses initial pressure, and the stroke that can be very little provides great power, makes things convenient for the die design, reduces the demand to high work piece.

In a preferred embodiment of the present invention, the punch assembly includes a punch blade 12, a punch seat 7 and a pressing ring 8, the punch seat 7 is fixedly mounted on the pressing ring 8 through the pressing ring 8, the punch blade 12 is located at an end of the punch seat 7 not connected to the pressing ring 8. In this exemplary embodiment, the punch blade 12 is fixedly connected to the punch holder 7 by a third screw 11. The punch is designed in a split mode, the punch is changed into a punch and a punch seat, the cutting edge of the punch is a quick-wear part, and the punch is made into a split structure, so that the cost is reduced, and the punch is easy to replace.

In a preferred embodiment of the present invention, the discharging ring 10 is provided with a sliding guide hole, and the punch seat 7 is movably disposed through the sliding guide hole. Meanwhile, the discharging ring 10 is fixedly connected with the discharging plate 9 through a fourth bolt 13. The utility model discloses in, the stripper adopts high temperature resistant material preparation to form, locates nitrogen spring between stripper and the upper die base simultaneously for nitrogen spring can with stripper contactless, avoids the temperature of stripper to transmit nitrogen spring, influences nitrogen spring life.

The utility model discloses a preferred embodiment, stripper pull rod 5 includes fixed connection's pull rod and spacing end, 9 mobilizable passages of stripper the pull rod sets up, and in this way, works as upper die base 1 downstream is, spacing end restriction stripper 9 downstream to compress through upper die base 1 and stripper 9 nitrogen spring 6, the drift subassembly continues the downstream and punches a hole, and after punching a hole and accomplishing, upper die base 1 drives drift subassembly upward movement, and at this moment, upper die base 1 continues to with under the effect of recovering elasticity upper die base 1 supports and presses on work piece 15, until nitrogen spring 6 resumes to initial condition. Correspondingly, the utility model discloses in, be equipped with the recess on the stripper 9, the bottom fixed connection of 6 one end of nitrogen gas spring and this recess.

The utility model discloses a preferred embodiment, still include nitrogen gas spring unable adjustment base 2, nitrogen gas spring unable adjustment base 2 one end through first bolt 3 with upper die base 1 fixed connection, the other end through second bolt 4 with nitrogen gas spring 6 fixed connection.

The utility model discloses a preferred embodiment, be provided with the lower bolster subassembly that punches a hole on the lower bolster 14, be equipped with the locating pin that punches a hole on the lower bolster subassembly that punches a hole, be equipped with the work piece frock board on the locating pin that punches a hole, the work piece frock board is used for fixing a position the work piece fixedly and fixed centre gripping.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. An elasticity in forging transfer machine is gone up discharge apparatus, its characterized in that includes:

the upper die holder (1), the upper die holder (1) is driven by the power mechanism;

the punch head component is fixedly arranged on the upper die holder (1);

the discharging assembly comprises a discharging ring (10), a discharging plate (9) and a discharging plate pull rod (5), the discharging ring (10) is sleeved on the punch assembly, the discharging plate (9) and the discharging plate pull rod (5) are symmetrically arranged relative to the discharging ring (10), one end of the discharging plate pull rod (5) is vertically and fixedly connected with the upper die base (1), the other end of the discharging plate pull rod movably penetrates through the discharging plate (9) to limit the stroke of the discharging plate (9), and the discharging plate (9) is fixedly connected with the punch assembly;

the plurality of nitrogen springs (6) are symmetrically arranged relative to the punch assembly, one end of each nitrogen spring (6) is connected with the upper die holder (1), and the other end of each nitrogen spring (6) is connected with the stripper plate (9);

and the lower die base (14) is arranged corresponding to the upper die base (1) and is used for fixing a workpiece (15).

2. The elastic upper discharging device in the forging automatic line according to claim 1, wherein the punch assembly comprises a punch blade (12), a punch holder (7) and a pressing ring (8), the punch holder (7) is fixedly mounted on the pressing ring (8) through the pressing ring (8), and the punch blade (12) is arranged at one end of the punch holder (7) which is not connected with the pressing ring (8).

3. The elastic loading and unloading device in the forging line according to claim 2, wherein the unloading ring (10) is provided with a sliding guide hole through which the punch seat (7) is movably disposed.

4. The device for elastic top discharge in forging lines according to claim 1, wherein the stripper pull rod (5) comprises a fixedly connected pull rod and a limiting end, the stripper (9) is movably disposed through the pull rod, in this way, when the top die holder (1) moves downward, the limiting end limits the downward movement of the stripper (9), so that the nitrogen gas spring (6) is compressed by the top die holder (1) and the stripper (9), the punch assembly continues to move downward to punch a hole, after the punching is completed, the top die holder (1) drives the punch assembly to move upward, and at this time, the top die holder (1) continues to press the top die holder (1) against the workpiece (15) under the action of the restoring elastic force until the nitrogen gas spring (6) restores to the initial state.

5. The elastic upper discharging device in the forging line according to claim 1, wherein the discharging plate (9) is provided with a groove, and one end of the nitrogen spring (6) is fixedly connected with the bottom of the groove.

6. The elastic loading and unloading device in a forging line according to any one of claims 1 to 5, wherein the upper die holder (1) is provided with a guide sleeve, the lower die holder (14) is provided with a guide post, and the guide sleeve is movably sleeved on the guide post.

7. The elastic loading and unloading device in the forging automatic line according to any one of claims 1 to 5, wherein a punching lower pad assembly is arranged on the lower die holder (14), a punching positioning pin is arranged on the punching lower pad assembly, a workpiece tooling plate is arranged on the punching positioning pin, and the workpiece tooling plate is used for positioning, fixing and clamping a workpiece.

8. The elastic loading and unloading device in the forging automatic line according to any one of claims 1 to 5, further comprising a nitrogen spring fixing base (2), wherein one end of the nitrogen spring fixing base (2) is fixedly connected with the upper die holder (1) through a first bolt (3), and the other end of the nitrogen spring fixing base is fixedly connected with the nitrogen spring (6) through a second bolt (4).