CN215544176U

CN215544176U - Integral type hydraulic pressure tapered wedge device

Info

Publication number: CN215544176U
Application number: CN202122058306.0U
Authority: CN
Inventors: 成扬; 龚仕华
Original assignee: Chongqing Telipuer Machinery Equipment Co ltd
Current assignee: Chongqing Telipuer Machinery Equipment Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-01-18
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses an integrated hydraulic oblique wedge device, which comprises a driving unit and a hydraulic oblique wedge action unit which are connected through a hydraulic pipe, wherein the driving unit comprises a first cylinder body, a movable piston is arranged in the first cylinder body, the movable piston divides an inner cavity of the first cylinder body into an upper cavity and a lower cavity which are mutually isolated, hydraulic oil is injected into the upper cavity, the upper cavity is communicated with the hydraulic pipe, a first bushing is arranged above the upper cavity, a driving piston is arranged at the center of the first bushing, high-pressure nitrogen is injected into the lower cavity, an inflation hole is formed in the bottom of the first cylinder body, and a one-way valve is arranged in the inflation hole. The remarkable effects are as follows: through the integrated driving unit, the complex structure of the traditional hydraulic oblique wedge is effectively simplified, the appearance is beautified and simplified, the installation, the transportation and the practicability are more convenient, and the material cost and the processing cost are effectively reduced.

Description

Integral type hydraulic pressure tapered wedge device

Technical Field

The utility model relates to the technical field of dies, in particular to an integrated hydraulic wedge device.

Background

In actual production, stamping parts are usually required to be filled with holes or grooves in horizontal or inclined directions, and a press machine cannot normally directly provide stamping force in corresponding directions. In this case, a tapered wedge mechanism must be used in the die to achieve press forming in a non-vertical direction. The oblique wedge mechanism has the characteristics of accurate transmission, stable operation, low noise, large speed ratio and the like in a stamping die, and is a commonly used and indispensable mechanism in the stamping die.

However, the conventional wedge mechanism has the following disadvantages: the structure is complicated, the occupied mould space is large, the mould is heavy, the installation and the transportation are not convenient enough, and the material cost and the processing cost are increased.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide an integrated hydraulic wedge device which can effectively simplify the existing hydraulic wedge structure, reduce the occupied space and reduce the material cost and the processing cost.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an integral type hydraulic pressure tapered wedge device which the key lies in: include the drive unit and the hydraulic pressure tapered wedge action unit that link to each other through the hydraulic pressure pipe, drive unit includes first cylinder body, be provided with movable piston in the first cylinder body, this movable piston will the inner chamber of first cylinder body is cut apart and is formed mutual isolated last cavity and lower cavity last cavity indoor notes have hydraulic oil, should go up the cavity with the hydraulic pressure pipe is linked together the top of going up the cavity is provided with first bush the center of first bush is provided with drive piston the cavity is indoor notes have high-pressure nitrogen gas down the inflation hole has been seted up to the bottom of first cylinder body, be provided with the check valve in the inflation hole.

Further, a limit ring is formed on the inner wall of the first cylinder body and located between the movable piston and the first bushing.

Further, a first sealing structure is arranged between the movable piston and the inner wall of the first cylinder body, and a second sealing structure is arranged between the first bushing and the driving piston.

Furthermore, a right-angle connector is connected to the first cylinder body, one end of the right-angle connector is communicated with the upper chamber, and the other end of the right-angle connector is connected with the hydraulic pipe.

Further, the hydraulic oblique wedge action unit comprises a second cylinder body, the inner cavity of the second cylinder body is communicated with the hydraulic pipe through a straight-through connector, a second bushing is arranged in the inner cavity of the second cylinder body, an action piston penetrates through the center of the second bushing, the outer end of the action piston extends out of the second bushing and is connected with a working surface, one side, close to the second cylinder body, of the working surface is connected with one section of the two connecting rods, the middle of each connecting rod penetrates through the upper portion of the second cylinder body, the other ends of the two connecting rods are connected with the two sides of the forced back-driving connecting block, and the middle of the forced back-driving connecting block is connected with the second cylinder body through a forced back-driving spring.

Furthermore, a safety block is arranged on one side, far away from the working surface, of the second cylinder body, and the height of the upper surface of the safety block is larger than that of the lower surface of the forced back connection block.

The utility model has the following remarkable effects: through the drive unit of integral type, simplified the complex structure of traditional hydraulic pressure tapered wedge effectively, beautified and simplified the outward appearance, not only installation, transportation and practicality are more convenient, have reduced material cost and processing cost effectively simultaneously, can also help reducing the mould inner space that occupies, alleviate the weight of mould.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

Detailed Description

The following provides a more detailed description of the embodiments and the operation of the present invention with reference to the accompanying drawings.

As shown in fig. 1 and 2, an integrated hydraulic wedge device includes a driving unit 10 and a hydraulic wedge actuating unit 30 connected through a hydraulic pipe 20, the driving unit 10 includes a first cylinder 11, a movable piston 12 is disposed in the first cylinder 11, the movable piston 12 divides an inner cavity of the first cylinder 11 into an upper chamber 13 and a lower chamber 14 which are isolated from each other, a limit ring 15 is formed on an inner wall of the first cylinder 11, the limit ring 15 is located between the movable piston 12 and a first bushing 16, hydraulic oil is filled in the upper chamber 13, the upper chamber 13 is communicated with the hydraulic pipe 20, the first bushing 16 is disposed above the upper chamber 13, a driving piston 17 is disposed at a center of the first bushing 16, high-pressure nitrogen gas is filled in the lower chamber 14, an inflation hole 18 is formed at a bottom of the first cylinder 11, a one-way valve is arranged in the inflation hole 18.

Preferably, a first sealing structure 19 is provided between the movable piston 12 and the inner wall of the first cylinder 11, and a second sealing structure 110 is provided between the first bushing 16 and the driving piston 17.

Referring to fig. 2, a right-angle connector 40 is connected to the first cylinder 11, and one end of the right-angle connector 40 is connected to the upper chamber 13, and the other end is connected to the hydraulic pipe 20.

Referring to fig. 1 and 2, the hydraulic wedge actuating unit 30 includes a second cylinder 31, an inner cavity of the second cylinder 31 is communicated with the hydraulic pipe 20 through a through-connection joint 50, a second bushing 32 is installed in the inner cavity of the second cylinder 31, an actuating piston 33 is installed through the center of the second bushing 32, an outer end of the actuating piston 33 extends out of the second bushing 32 and is connected with a working surface 34, one side of the working surface 34 close to the second cylinder 31 is connected with one section of two connecting rods 35, the middle of the connecting rod 35 is installed through the upper portion of the second cylinder 31, the other ends of the two connecting rods 35 are connected with two sides of a forced drive-back connecting block 36, and the middle of the forced drive-back connecting block 36 is connected with the second cylinder 31 through a forced drive-back spring 37.

Further, a safety block 38 is disposed on a side of the second cylinder 31 away from the working surface 34, and a height of an upper surface of the safety block 38 is greater than a height of a lower surface of the forced retraction connecting block 36, that is, when the forced retraction connecting block 36 moves to a certain distance, the safety block 38 interferes with the forced retraction connecting block 36, so that the actuating piston 33 is over-stroked during the return stroke, and the safety is improved.

The cylinder body of the integrated driving unit 10 is divided into an upper chamber 13 and a lower chamber 14, the upper chamber 14 and the lower chamber 14 are separated by a movable piston 12, and a limit ring 15 is arranged to limit the stroke distance of the movable piston 12. The upper cavity 13 is filled with hydraulic oil and communicated with the hydraulic oblique wedge action unit 30, the upper cavity 13 is also provided with the driving piston 17, the driving piston 17 can freely extend into the upper cavity 13 and is hermetically separated from the outside, so that the complex structure of the traditional hydraulic oblique wedge is effectively simplified, the appearance is beautified and simplified, the installation, the transportation and the practicability are more convenient, the material cost and the processing cost are effectively reduced, the occupied inner space of the die can be reduced, and the weight of the die is reduced.

The working principle is as follows:

1. the mould is pressed downwards, the piston of the driving cylinder descends, the hydraulic oil in the upper chamber 13 drives the action piston 33 in the hydraulic wedge action unit 30 to eject out, and the working surface 34 moves forwards (if the speed exceeds the flow rate of the hydraulic pipe 20 in the descending process of the mould too fast, or the hydraulic wedge action unit 30 cannot act due to faults or other reasons, the hydraulic oil can push the movable piston 12, the nitrogen in the lower chamber 14 is compressed, the mould ascends, the high-pressure nitrogen pushes the movable piston 12 to reset, and then the piston 17 is driven to reset);

2. when the mould moves upwards, the forced driving-back spring 37 pulls back the action piston 33 extending out of the hydraulic wedge action unit 30, and the hydraulic oil returns to the upper chamber 13 of the driving unit 10.

The technical solution provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides an integral type hydraulic pressure tapered wedge device, includes drive unit and hydraulic pressure tapered wedge action unit through hydraulic pressure pipe links to each other, its characterized in that: drive unit includes first cylinder body, be provided with movable piston in the first cylinder body, this movable piston will the inner chamber of first cylinder body is cut apart and is formed isolated last cavity and lower cavity each other in the interior notes of epicoele have hydraulic oil, should go up the cavity with the hydraulic pressure pipe is linked together the top of going up the cavity is provided with first bush the center of first bush is provided with drive piston the indoor notes of lower cavity have high-pressure nitrogen gas the inflation hole has been seted up to the bottom of first cylinder body, be provided with the check valve in the inflation hole.

2. The integrated hydraulic wedge device of claim 1, wherein: a limit ring is formed on the inner wall of the first cylinder body and is positioned between the movable piston and the first lining.

3. The integrated hydraulic wedge device of claim 2, wherein: a first sealing structure is arranged between the movable piston and the inner wall of the first cylinder body, and a second sealing structure is arranged between the first bushing and the driving piston.

4. The integrated hydraulic wedge device of claim 1, wherein: the first cylinder body is connected with a right-angle connector, one end of the right-angle connector is communicated with the upper chamber, and the other end of the right-angle connector is connected with the hydraulic pipe.

5. The integrated hydraulic wedge device of claim 1, wherein: the hydraulic oblique wedge action unit comprises a second cylinder body, the inner cavity of the second cylinder body is communicated with the hydraulic pipe through a straight-through connector, a second bushing is arranged in the inner cavity of the second cylinder body, an action piston penetrates through the center of the second bushing, the outer end of the action piston extends out of the second bushing and is connected with a working face, one side, close to the second cylinder body, of the working face is connected with one section of the two connecting rods, the middle of each connecting rod penetrates through the upper portion of the second cylinder body, the other ends of the two connecting rods are connected with the two sides of the forced back-driving connecting block, and the middle of the forced back-driving connecting block is connected with the second cylinder body through a forced back-driving spring.

6. The integrated hydraulic wedge device of claim 5, wherein: and a safety block is arranged on one side, far away from the working surface, of the second cylinder body, and the height of the upper surface of the safety block is greater than that of the lower surface of the forced back connection block.