CN215614537U

CN215614537U - Buffer mechanism of stamping die

Info

Publication number: CN215614537U
Application number: CN202122117481.2U
Authority: CN
Inventors: 夏平
Original assignee: Bengbu Guanping Machinery Co ltd
Current assignee: Bengbu Guanping Machinery Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-25
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a buffer mechanism of a stamping die, which comprises a rack, wherein an oil cylinder is connected on the rack, a plunger chip is connected on a piston rod of the oil cylinder, a first buffer part is connected on the rack and used for buffering the plunger chip, the first buffer part comprises an air tank, a first piston plate is connected in the air tank in a sliding manner, a first piston rod is connected below the first piston plate, the first piston rod sequentially penetrates through the bottom of the air tank and the top of the rack downwards, the first piston rod is connected with the piston rod of the oil cylinder through a connecting rod, a first air pipe is connected on the air tank, and the first air pipe is used for inflating the air tank. The utility model has the advantages that: this device has adopted first bolster and second bolster to cushion, has replaced traditional spring buffering through gas buffering, and not only the buffering efficiency is good, but also need not regularly change the spring, has saved the maintenance cost.

Description

Buffer mechanism of stamping die

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a buffer mechanism of a stamping die.

Background

Traditional press die buffer gear all cushions through utilizing the spring, but the spring can produce fatigue after long-time the use, makes the shock-absorbing capacity of spring descend, leads to the press die not to obtain the buffering when the punching press, all causes certain impact force to mould and machine itself, makes mould and machine cause the damage, consequently need change the spring after a period, but all very troublesome, extravagant production time to the dismantlement and the installation of spring.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a buffer mechanism of a stamping die.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a buffer gear of punching die, includes the frame, connects the hydro-cylinder in the frame, connects the drift on the piston rod of hydro-cylinder connect first bolster in the frame and be used for the buffering the drift, first bolster includes the gas tank, and the first piston plate of sliding connection in the gas tank connects first piston rod in the below of first piston plate, and first piston rod passes downwards in proper order the bottom of gas tank with the top of frame, first piston rod passes through the connecting rod and connects the piston rod of hydro-cylinder connects first trachea on the gas tank, and first trachea is used for aerifing in to the gas tank.

Preferably, a partition plate is connected to the gas tank, the partition plate divides the interior of the gas tank into a first cavity and a second cavity, the first piston plate is slidably connected to the second cavity, a communication hole is formed in the lower portion of the side face of the partition plate and used for communicating the first cavity with the second cavity, and the first cavity is communicated with the first gas pipe.

Preferably, the mounting plate is connected below the piston rod of the oil cylinder, the punch is connected below the mounting plate, a group of second buffering parts are uniformly distributed on the mounting plate around the punch as the circle center, the pressing plate is connected below the group of second buffering parts, the center of the pressing plate is provided with a through hole, and the punch penetrates through the through hole.

Preferably, the second bolster includes the seal pot, sliding connection second piston plate in the seal pot, connects the second piston rod in the below of second piston plate, and the second piston rod passes downwards in proper order the seal pot with the mounting panel, the lower extreme of second piston rod is connected on the pressure board, connect the second trachea in the outside top of seal pot, the second trachea be used for to aerify in the seal pot.

Preferably, a third piston plate is connected to the upper side of the second piston plate through a set of spring pieces, a guide rod is connected to the lower side of the third piston plate, and a guide hole for passing through the guide rod is formed in the second piston plate.

Preferably, a limiting ring is connected above the inner side wall of the seal pot and used for limiting the third piston plate.

The utility model has the advantages that: the buffering mechanism of the stamping die provided by the utility model adopts the first buffering part and the second buffering part for buffering, replaces the traditional spring buffering by gas buffering, has good buffering efficiency, does not need to replace the spring regularly, and saves the maintenance cost.

Drawings

FIG. 1 is a schematic structural diagram of a buffering mechanism of a stamping die according to the present invention;

FIG. 2 is a schematic view of a first buffer;

fig. 3 is a structural schematic view of the second buffer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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 utility model and are not intended to limit the utility model.

As shown in fig. 1, the buffer mechanism of the press die provided by the utility model comprises a frame 1, an oil cylinder 2 connected to the frame 1, a punch 3 connected to a piston rod of the oil cylinder 2, and a workpiece pressed by the punch 3.

The frame 1 is connected with a first buffer member 4 for buffering the punch 3, as shown in fig. 2, the first buffer member 4 comprises a gas tank 5, the gas tank 5 is fixed on the top of the frame 1 through a bolt, the gas tank 5 is connected with a first gas pipe 8, and the first gas pipe 8 is used for inflating the gas tank 5.

A partition plate 4.1 is welded in a gas tank 4, the inside of the gas tank 4 is divided into a first cavity 4.2 and a second cavity 4.3 by the partition plate 4.1, a communication hole 4.4 is arranged below the side face of the partition plate 4.1, the communication hole 4.4 is used for communicating the first cavity 4.2 with the second cavity 4.3, the first cavity 4.3 is communicated with a first gas pipe 8, the first gas pipe 8 is pumped by an inflating pump, then the first cavity 4.3 is inflated by the first gas pipe 8, and then the first gas pipe flows into the bottom of the second cavity 4.3 through the communication hole 4.4.

Sliding connection first piston plate 6 in second cavity 4.3, connecting first piston rod 7 in the below of first piston plate 6, first piston rod 7 passes in proper order downwards the bottom of gas tank 5 with the top of frame 1, first piston rod 7 passes through connecting rod 12 and connects the piston rod of hydro-cylinder 2 can drive first piston rod 7 downstream when the piston rod 2 of hydro-cylinder 2 moves down, and first piston rod 7 moves down and drives first piston plate 6 and move down, can extrude the gas in second cavity 4.3 when first piston plate 6 moves down to cushion drift 3, prevent that the impulsive force of drift 3 is too big.

In this embodiment, the mounting plate 2.1 is fixed below the piston rod of the oil cylinder 2 through bolts, the punch 3 is fixed below the mounting plate 2.1 through bolts, the mounting plate 2.1 is provided with a group of second buffering members 9 uniformly distributed on the periphery of the circle around the punch 3, in this embodiment, the number of the group of second buffering members 9 is four, the pressing plate 10 is connected below the four second buffering members 9, the center of the pressing plate 10 is provided with a through hole 11, the punch 3 penetrates through the through hole 11, when the pressing plate 10 presses on a workpiece, the oil cylinder 2 continuously drives the punch 3 to move downwards to punch the workpiece, and the group of second buffering members 9 cushion the punch 3 again during punching.

As shown in fig. 3, the second buffer 9 includes a sealing can 9.1, the sealing can 9.1 is fixed on the mounting plate 2.1 by bolts, the second piston plate 9.2 is slidably connected in the sealing can 9.1, the third piston plate 9.6 is connected above the second piston plate 9.2 by a set of spring pieces 9.5, in this embodiment, the spring pieces 9.5 are V-shaped, and the spring pieces 9.5 further buffer to improve the buffering effect.

A guide rod 9.7 is connected below the third piston plate 9.6, a guide hole for penetrating through the guide rod 9.7 is formed in the second piston plate 9.2, and the guide rod 9.7 can enable the third piston plate 9.6 to vertically move up and down.

Connect second piston rod 9.3 in the below of second piston plate 9.2, second piston rod 9.3 passes downwards in proper order sealed tank 9.1 with mounting panel 2.1, the lower extreme of second piston rod 9.3 passes through the bolt fastening on pressing the pressure board 10, connects second trachea 9.4 in sealed tank 9.1's outside top, second trachea 9.4 be used for to aerify in sealed tank 9.1, the pump is aerifyd to sealed tank 9.1 in through second trachea 9.4.

Stop collar 9.8 is connected to the top of seal pot 9.1 inside wall, and stop collar 9.8 is used for spacingly third piston plate 9.6 prevents that third piston plate 9.6 from blockking up second trachea 9.4, leads to gaseous entering sealed pot.

This device is when the punching press, and hydro-cylinder 2 drives drift 3 downstream, at first cushions through first bolster 4, prevents to press the impact of pressing the board 10 to the work piece too big, when pressing the board 10 to press on the work piece, when drift 3 punched the work piece, second bolster 9 not only can compress tightly the work piece, can also cushion drift 3, prevents that the impact of drift 3 is too big.

Claims

1. The utility model provides a buffer gear of press die, includes frame (1), connects hydro-cylinder (2) in frame (1), connects drift (3) on the piston rod of hydro-cylinder (2), its characterized in that: connect first bolster (4) on frame (1) and be used for the buffering drift (3), first bolster (4) include gas tank (5), sliding connection first piston plate (6) in gas tank (5), connect first piston rod (7) in the below of first piston plate (6), and first piston rod (7) pass downwards in proper order the bottom of gas tank (5) with the top of frame (1), first piston rod (7) are connected through connecting rod (12) the piston rod of hydro-cylinder (2) is connected first trachea (8) on gas tank (5), and first trachea (8) are used for aerifing in to gas tank (5).

2. A cushion mechanism for a press die according to claim 1, wherein: gas tank (5) in-connection baffle (4.1), baffle (4.1) will gas tank (5) internal partitioning is first cavity (4.2) and second cavity (4.3), sliding connection in second cavity (4.3) first piston plate (6) is equipped with intercommunicating pore (4.4) in the side below of baffle (4.1), and perforating pore (4.4) are used for the intercommunication first cavity (4.2) with second cavity (4.3), first cavity (4.3) intercommunication first trachea (8).

3. A cushion mechanism for a press die according to claim 1, wherein: mounting panel (2.1) is connected to the below of hydro-cylinder (2) piston rod, connects in the below of mounting panel (2.1) drift (3), on mounting panel (2.1) with drift (3) are a set of second bolster (9) of centre of a circle circumference equipartition, connect in the below of a set of second bolster (9) and press clamp plate (10), are equipped with perforating hole (11) at the center of pressing clamp plate (10), pass in perforating hole (11) drift (3).

4. A cushion mechanism for a press die according to claim 3, wherein: second bolster (9) including seal pot (9.1), sliding connection second piston board (9.2) in seal pot (9.1), connect second piston rod (9.3) in the below of second piston board (9.2), second piston rod (9.3) pass downwards in proper order seal pot (9.1) with mounting panel (2.1), the lower extreme of second piston rod (9.3) is connected press on board (10), connect second trachea (9.4) in the outside top of seal pot (9.1), second trachea (9.4) be used for to aerify in seal pot (9.1).

5. The cushion mechanism of a press die as set forth in claim 4, wherein: a third piston plate (9.6) is connected above the second piston plate (9.2) through a group of spring pieces (9.5), a guide rod (9.7) is connected below the third piston plate (9.6), and a guide hole for penetrating through the guide rod (9.7) is formed in the second piston plate (9.2).

6. The cushion mechanism of a press die as set forth in claim 5, wherein: and a limiting ring (9.8) is connected above the inner side wall of the seal pot (9.1), and the limiting ring (9.8) is used for limiting the third piston plate (9.6).