CN215391895U

CN215391895U - Double-acting press

Info

Publication number: CN215391895U
Application number: CN202120628965.0U
Authority: CN
Inventors: 柯尊芒; 冯全保; 齐全全
Original assignee: Jdm Jingda Machine Ningbo Co ltd
Current assignee: Jdm Jingda Machine Ningbo Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-01-04
Anticipated expiration: 2031-03-29

Abstract

A double-acting press comprises a base, a stand column, an upper cross beam, an inner slide block and an outer slide block; the base, the upper cross beam and the four upright posts around are fixed to form a frame of the press; two sides of the main shaft are supported by an upper cross beam in a rolling way, two spaced eccentric columns are arranged on the main shaft, connecting rods are sleeved outside the two eccentric columns respectively, the lower ends of the connecting rods are hinged with an inner sliding block respectively, and the inner sliding block is connected with an outer sliding block in a sliding way; the main shafts outside the two connecting rods are respectively provided with an equal-diameter cam, the upper part of the equal-diameter cam is always contacted with an upper supporting roller bearing, the upper supporting roller is supported by a gland bearing in a rolling way, the lower part of the equal-diameter cam is always contacted with a lower supporting roller bearing, the lower supporting roller bearing is supported by an outer slide block in a rolling way, and the gland and the outer slide block are integrated; the outer sliding block is sleeved outside the inner sliding block, and the periphery of the outer sliding block is guided by the upright posts. The device generates stable blank holder force to the die, is convenient for the inner slide block to realize high-speed stretching and cup punching forming, and has high cup punching precision.

Description

Double-acting press

Technical Field

The utility model relates to a press machine.

Background

The cup punching is an important link in the manufacturing process flow of similar cup-shaped products such as battery cases, cans and the like, and the cup punching machine and the matched dies thereof are produced as the cup punching machine and the subsequent thinning and stretching processes are completed separately. If a double action press is used, it typically comprises two slides: the cup punching machine comprises an inner sliding block and an outer sliding block, wherein the inner sliding block is used for stretching a punching cup, the outer sliding block is used for blanking and pressing edges, and the inner sliding block and the outer sliding block realize punching of the cup by driving corresponding dies.

The existing double-action press machine has no die adjusting mechanism, and can only be adjusted on a die by a method in order to ensure the required blank holding force, so that the adjustment is extremely difficult, and the requirement on the precision of the die is particularly high; or a mold adjusting mechanism is arranged on the outer sliding block generally. The inner slide block space is limited, the die adjusting mechanism cannot be arranged, even if the die adjusting mechanism can be arranged, the structure is very complex, and the die adjusting mechanism of the outer slide block can reduce the precision of the press machine because the distance between two force application points of the outer slide block is large and the synchronism is difficult to guarantee.

Disclosure of Invention

The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing a double acting press, which is stable and reliable and has a convenient blank holder force adjustment.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a double action press characterized in that: it comprises a base, a column, an upper beam, an inner slide block and an outer slide block; the base, the upper cross beam and the four upright posts around are fixed to form a frame of the press; two sides of the main shaft are supported by an upper cross beam in a rolling way, two spaced eccentric columns are arranged on the main shaft, connecting rods are sleeved outside the two eccentric columns respectively, the lower ends of the connecting rods are hinged with an inner sliding block respectively, and the inner sliding block is connected with an outer sliding block in a sliding way; the main shafts outside the two connecting rods are respectively provided with an equal-diameter cam, the upper part of the equal-diameter cam is always contacted with an upper supporting roller bearing, the upper supporting roller is supported by a gland bearing in a rolling way, the lower part of the equal-diameter cam is always contacted with a lower supporting roller bearing, the lower supporting roller bearing is supported by an outer slide block in a rolling way, and the gland and the outer slide block are integrated; the outer sliding block is sleeved outside the inner sliding block and guided by the guide piece.

More specifically, the outer sliding block and the upper cross beam are also provided with guide pieces, and the guide pieces are matched with the upright posts and the upper cross beam and can slide up and down along the upright posts and the upper cross beam, so that the outer sliding block can stably move up and down on the upright posts and the upper cross beam.

Preferably, the gland and the outer slide are detachably connected together, which facilitates manufacture and installation.

Preferably, a guide mechanism is arranged between the inner sliding block and the outer sliding block, and the inner sliding block and the outer sliding block can move stably and mutually, so that the inner sliding block and the outer sliding block do not interfere with each other when sliding up and down and can guide each other.

Preferably, the upper end of the upright post penetrates through the upper cross beam and is connected with a piston rod of the overhead oil cylinder, a cylinder body of the overhead oil cylinder is arranged on the upper cross beam, the bottom of the upper cross beam is limited by an adjusting nut sleeved on the upright post, and the adjusting nut is in threaded connection with the upright post.

Preferably, the upright post is in threaded connection with the piston rod, and the upright post is in threaded connection with the base, so that the assembly and disassembly are convenient.

Preferably, the adjusting nuts are provided with chain wheels on the peripheries thereof, the chain wheels of each adjusting nut are connected together through chains, and the chains are driven through the nut driving mechanism, so that each adjusting nut is driven to rotate on the upright post, and the height of the adjusting nut, namely the lowest position of the upper cross beam, is conveniently adjusted.

Compared with the prior art, the utility model has the advantages that: the outer sliding block driven by the equal-diameter cam generates stable blank holder force on the die, so that the inner sliding block can conveniently realize high-speed drawing and cup punching forming, and the cup punching precision is high.

The top-mounted oil cylinder is arranged, so that the upper position and the lower position of the adjusting nuts on the four columns can be adjusted after the inner sliding block and the outer sliding block are integrally lifted, on one hand, the die height adjustment of the inner sliding block and the outer sliding block can be simultaneously completed, the adjustment is convenient, the structure is simple, and on the other hand, the blank pressing force can be adjusted.

Drawings

Fig. 1 is a three-dimensional schematic view of an overhead cylinder type double action press according to an embodiment of the present invention.

Fig. 2 is a side view of an overhead cylinder type double action press according to an embodiment of the present invention.

FIG. 3 is a schematic structural diagram and a partial sectional view of a double acting portion of an inner slider and an outer slider according to an embodiment of the present invention.

Fig. 4 is a perspective view and a partial sectional view of the inner slide and its attachment mechanism of fig. 3.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, an overhead cylinder type double action press comprises a base 1, a column 2, an upper cross beam 4, an inner slide 7, and an outer slide 9.

The base 1, the upper cross beam 4 and the four upright posts 2 around are fixed to form a frame of the press machine.

The two sides of the main shaft 3 are supported by the upper cross beam 4 in a rolling manner, two spaced eccentric columns 5 are mounted on the main shaft 3, connecting rods 6 are respectively sleeved outside the two eccentric columns 5, and the lower ends of the connecting rods 6 are respectively connected with the inner sliding block 7 through pin shafts 71, so that the inner sliding block 7 can move up and down under the driving of the eccentric columns 5 and the connecting rods 6.

The main shaft 3 outside the two connecting rods 6 is also respectively provided with an equal diameter cam 8, the upper part of the equal diameter cam 8 is always contacted with an upper supporting roller bearing 102, the upper supporting roller bearing 102 is supported on a gland 10 by a pin shaft 101 in a rolling way, the lower part of the equal diameter cam 8 is always contacted with a lower supporting roller bearing 91, the lower supporting roller bearing 91 is supported on an outer slide block 9 by a lower pin shaft 101 in a rolling way, the gland 10 and the outer slide block 9 are integrated, in the embodiment, the gland 10 and the outer slide block 9 are respectively arranged and then fixed together, so that the disassembly and the assembly are convenient, and the manufacture is also convenient.

The outer sliding block 9 and the gland 10 are also provided with a guide 92, and the guide 92 is matched with the upright post 2 and the upper cross beam 4 and can slide up and down along the upright post 2 and the upper cross beam 4, so that the outer sliding block 9 can move up and down smoothly.

Outer slider 9 cover is outside inner slider 7, can steadily remove each other through the guiding mechanism between the two, and in this embodiment, guiding mechanism is: the outer sliding block 9 is provided with a guide sleeve 93, the inner sliding block 7 is provided with a guide post 72, and the guide post 72 is inserted into the guide sleeve 93, so that the inner sliding block 7 and the outer sliding block 9 do not interfere with each other when sliding up and down and can guide each other. Of course, the guiding mechanism may also take other common forms, such as a slide rail, etc.

And a flywheel and clutch assembly 13 is further mounted at one end of the main shaft 3, is connected with a driving mechanism of the main shaft, and drives the main shaft 3 to rotate through the driving mechanism of the main shaft.

The upright post 2 upwards passes through the upper cross beam 4, the upper end of the upright post is connected with a piston rod of the overhead oil cylinder 11, the cylinder body of the overhead oil cylinder 11 is arranged on the upper cross beam 4, the lower part of the upper cross beam 4 is limited by an adjusting nut 12 sleeved on the upright post 2, and the adjusting nut 12 is in threaded connection with the upright post 2.

The adjusting nuts 12 are provided with chain wheels 121 on the outer periphery, the chain wheels of each adjusting nut are connected together through a chain (not shown in the figure), and the chain wheels are driven by a nut driving mechanism, so that each adjusting nut is driven to rotate on the upright post 2, and the height of the adjusting nut 12, namely the lowest position of the upper cross beam 4, is conveniently adjusted.

The piston rod of the overhead oil cylinder is in threaded connection with the upper end of the upright post 2, the lower end of the upright post 2 and the base 1, so that the installation and the disassembly are convenient.

A working table plate 14 is arranged on the base 1, a lower die is arranged on the working table plate 14, and corresponding upper dies are arranged at the lower parts of the inner sliding block 7 and the outer sliding block 9.

When the die height needs to be adjusted, pressure oil is introduced into an upper cavity of the overhead oil cylinder 11, a cylinder body of the overhead oil cylinder 11 moves upwards to drive an upper cross beam 4 connected with the cylinder body to move upwards, so that the inner slide block 7 and the outer slide block 9 are driven by the main shaft 3 to integrally move upwards to a specific position and stop, then the adjusting nut 12 is rotated to move upwards or downwards for a set distance as required, after the rotation is completed, the pressure oil is introduced into a lower cavity of the overhead oil cylinder 11 to drive the inner slide block and the outer slide block to move downwards, the downward stop position of the upper cross beam 4 is limited by the adjusting nut 12, and the die height adjustment is completed.

When the cup is punched, the press machine drives the flywheel clutch assembly 13 to move through a driving mechanism (not shown), so that the main shaft 4 is driven to rotate, the constant-diameter cam 8 drives the outer slide block 9 to descend, due to the stopping characteristic of the constant-diameter cam 8, when the constant-diameter cam 8 rotates to the stopping angular position, the outer slide block 9 stops descending, an upper die and a lower die of a corresponding die are closed until the blanking is completed when the constant-diameter cam 8 rotates to the bottom dead center position, and the constant-diameter cam 8 can enable the die to press the material all the time due to a section of circular arc; meanwhile, the main shaft 4 continues to rotate, so that the eccentric column 5 and the connecting rod 6 continue to drive the inner slide block 7 to descend, and the stretching and punching of the cup are finished in the material pressing process of the outer slide block 9 die, so that the product punching is stable, no cup body wrinkles are generated, and the punching precision is high.

Claims

1. A double action press characterized in that: it comprises a base, a column, an upper beam, an inner slide block and an outer slide block; the base, the upper cross beam and the four upright posts around are fixed to form a frame of the press; two sides of the main shaft are supported by an upper cross beam in a rolling way, two spaced eccentric columns are arranged on the main shaft, connecting rods are sleeved outside the two eccentric columns respectively, the lower ends of the connecting rods are hinged with an inner sliding block respectively, and the inner sliding block is connected with an outer sliding block in a sliding way; the main shafts outside the two connecting rods are respectively provided with an equal-diameter cam, the upper part of the equal-diameter cam is always contacted with an upper supporting roller bearing, the upper supporting roller is supported by a gland bearing in a rolling way, the lower part of the equal-diameter cam is always contacted with a lower supporting roller bearing, the lower supporting roller bearing is supported by an outer slide block in a rolling way, and the gland and the outer slide block are integrated; the outer sliding block is sleeved outside the inner sliding block and guided by the guide piece.

2. The double action press of claim 1, wherein: the outer sliding block and the press cover are also provided with guide pieces, and the guide pieces are matched with the upright posts and the upper cross beam and can slide up and down along the upright posts and the upper cross beam.

3. The double action press of claim 1, wherein: the gland and the outer slide block are detachably connected together.

4. The double action press of claim 1, wherein: and a guide mechanism is arranged between the inner slide block and the outer slide block.

5. The double action press of claim 1, wherein: the upper end of the upright post penetrates through the upper cross beam and is connected with a piston rod of the overhead oil cylinder, a cylinder body of the overhead oil cylinder is arranged on the upper cross beam, the bottom of the upper cross beam is limited by an adjusting nut sleeved on the upright post, and the adjusting nut is in threaded connection with the upright post.

6. The double action press of claim 5, wherein: the upright column is in threaded connection with the piston rod, and the upright column is in threaded connection with the base.

7. The double action press of claim 5, wherein: and chain wheels are arranged on the peripheries of the adjusting nuts, and the chain wheels of each adjusting nut are connected together through a chain and drive the chain through a nut driving mechanism.