CN107355441B

CN107355441B - Automatic valve block that switches on of movable workbench

Info

Publication number: CN107355441B
Application number: CN201710746351.0A
Authority: CN
Inventors: 王锐
Original assignee: Henan Kexing Hydraulic Technology Co ltd
Current assignee: Henan Kexing Hydraulic Technology Co ltd
Priority date: 2017-08-26
Filing date: 2017-08-26
Publication date: 2023-04-25
Anticipated expiration: 2037-08-26
Also published as: CN107355441A

Abstract

The utility model provides an automatic switch-on valve piece of moving worktable, its structure includes lower valve body, coupling, go up valve body, lid, briquetting, go up the spring, lower spring, valve rod, valve head, go up the valve body and fix on lower valve body, go up the valve body center and open there is the mounting hole, install valve rod, briquetting in the mounting hole, the briquetting is opened there is the centre bore, the lower extreme of hole is echelonment, the valve rod passes the lower extreme and the valve head connection of the hole of briquetting, the valve head stretches into in the working chamber of opening on the lower valve body, be equipped with the spring between briquetting and the last valve body, be equipped with down the spring between valve head and the briquetting, the lid is fixed in last valve body upper end, the briquetting passes the centre bore installation of lid. The valve block can be automatically switched on and off when the movable workbench reaches the working position to lift, and has no leakage and high reliability.

Description

Automatic valve block that switches on of movable workbench

Technical Field

The utility model relates to the field of mechanical presses, in particular to an automatic valve-closing block for a movable workbench of a mechanical press.

Background

A mobile workbench is a transport means such as a process circulation, a tooling, a product and the like commonly adopted in a production shop, for example, when a metal forging shop is used for transporting or replacing a die, the mobile workbench is usually used as an accessory device of a mechanical press, and various transportation or circulation tasks can be executed. Sometimes, because of functional requirements, a small hydraulic station needs to be arranged on a movable workbench of the mechanical press, and therefore, the movable workbench needs to be connected with main hydraulic oil of the press to supply oil to the small hydraulic station of the movable workbench when in a working position.

In order to realize the communication between the small hydraulic station of the movable workbench and the hydraulic oil of a main press machine, a pipe joint is reserved on the movable workbench in a conventional mode, and when the movable workbench reaches a working position, the small hydraulic station of the movable workbench is connected with the main hydraulic station by utilizing a hose.

At present, less reliable schemes can solve the operation problem when oil is supplied to a small hydraulic station of a mobile workbench, for example, chinese patent publication No. CN202846128U discloses a flange butt joint auxiliary device which drives the hydraulic station and a clamping device working by utilizing hydraulic pressure to execute the actions of butt joint of a pipeline flange and the like through a mobile trolley. Therefore, an effective method is needed in the art to solve the problems of automatic, rapid and reliable on-off of the oil path of the mobile workbench.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the automatic valve-on block of the movable workbench, which is capable of automatically realizing on-off and has no leakage when the movable workbench reaches the working position to lift, thereby improving the working efficiency and the safety.

The utility model aims at realizing the following technical scheme:

an automatic switch-on valve block of a movable workbench can automatically switch on and off when the movable workbench reaches the working position to lift and fall, and no leakage exists.

The automatic valve block of switching on of the said movable working table, its structure includes lower valve body, pipe joint, upper valve body, cover, briquetting, upper spring, lower spring, valve stem, valve head.

The upper valve body is fixed on the lower valve body, the center of the upper valve body is provided with a mounting hole, a valve rod and a pressing block are arranged in the mounting hole, the pressing block is provided with a central hole, the lower end of the hole is in a ladder shape, the valve rod penetrates through the lower end of the hole of the pressing block to be connected with the valve head, the valve head stretches into a working cavity formed in the lower valve body, an upper spring is arranged between the pressing block and the upper valve body, a lower spring is arranged between the valve head and the pressing block, the cover is fixed at the upper end of the upper valve body, and the pressing block penetrates through the central hole of the cover to be mounted.

The lower end of the lower valve body is connected with a hydraulic pipeline through a pipe joint.

As the optimization of the technical scheme, the upper valve body is fixed on the lower valve body through the first inner hexagon bolt.

As a preferable mode of the technical scheme, the cover is fixed at the upper end of the upper valve body through a second hexagon socket head cap bolt.

As the optimization of the technical scheme, seals are arranged between the cover and the upper valve body, between the pressing block and the cover, between the valve head and the upper valve body and between the valve head and the working cavity of the lower valve body.

The utility model has the beneficial effects that:

the automatic valve block for the movable workbench can be automatically switched on and off when the movable workbench reaches the working position and rises and falls, is free of leakage, realizes the on-off of an oil way by means of the opening and closing actions of the valve head, is high in reliability, and can be matched with the automatic locking arrangement of the pipe joint of the lower valve body to carry out linkage response on the pressure of hydraulic oil according to requirements, so that the safety and the leakage prevention performance of the device are further improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 shows an automatic on valve block of a mobile station according to an embodiment of the present utility model.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

According to the embodiment of the utility model, fig. 1 provides an automatic valve block of the mobile workbench, which is automatically switched on and off when the mobile workbench reaches the working position and is free from leakage, and the effect of no leakage depends on the linkage response of the automatic locking arrangement of the pipe joint integrated in the valve block besides the on and off structure of the valve block, and is also described in the embodiment.

The components denoted by the reference numerals in fig. 1 are as follows: 1. a lower valve body; 2. a pipe joint; 3. a compression bar; 4. a connecting rod; 5. a piston; 6. sealing one; 7. a transverse spring; 8. a gland; 9. a bolt; 10. an upper valve body; 11. an inner hexagon bolt I; 12. a cover; 13. a second inner hexagon bolt; 14. sealing II; 15. briquetting; 16. sealing three; 17. sealing; 18. a spring is arranged; 19. a valve stem; 20. a valve head; 21. a lower spring; 22. sealing; 23. seal six

It should be noted that, in the embodiment of the present utility model, in order to distinguish components at different locations, a number is used in the component names, for example, seal one and seal two, and it should be clear to those skilled in the art that the number is merely a distinguishing mark, and does not limit any number or order, for example, when those skilled in the art read "seal six", it does not mean that the device must also have five other seals.

The specific structure of this embodiment is:

the upper valve body 10 is fixed on the lower valve body 1 through a first inner hexagon bolt 11, a mounting hole is formed in the center of the upper valve body 10, a valve rod 19 and a pressing block 15 are installed in the mounting hole, a center hole is formed in the pressing block 15, the lower end of the hole is in a stepped shape, the valve rod 19 penetrates through the lower end of the hole of the pressing block 15 and is connected with the valve head 20 through threads, the valve head 20 stretches into a working cavity formed in the lower valve body 1, an upper spring 18 is installed between the pressing block 15 and the upper valve body 10, a lower spring 21 is installed between the valve head 20 and the pressing block 15, a cover 12 is fixed at the upper end of the upper valve body 10 through a second inner hexagon bolt 13, the pressing block 15 penetrates through the center hole of the cover 12, a second sealing 14 is installed between the cover 12 and the upper valve body 10, a third sealing 16 is installed between the pressing block 15 and the cover 12, a fourth sealing 17 is installed at the upper part of the pressing block 15, a fifth sealing 22 is installed between the valve head 20 and the upper valve body 10, and a sixth sealing 23 is installed between the valve head 20 and the working cavity of the lower valve body 1.

The lower end of the lower valve body 1 is provided with a sealing pipe thread, one end of the pipe joint 2 is provided with the sealing pipe thread, the sealing pipe thread is screwed on the pipe thread at the lower end of the lower valve body 1, and the other end of the pipe joint 2 is connected with a hydraulic pipeline through a steel pipe or a hose and the like. The lower valve body 1 is also provided with holes at the left end and the right end, the piston 5 is installed in the holes in a matched mode, the sealing one 6 is used for sealing the piston 5 and the lower valve body 1, the tail end of the piston 5 penetrates through the gland 8 to be hinged with the connecting rod 4, the gland 8 is fixed on the lower valve body 1 through the bolt 9, the transverse spring 7 is installed between the gland 8 and the piston, the middle of the pressure rod 3 is hinged at the end part of the lower valve body 1, the pressure rod 3 can rotate along a hinge point with the lower valve body 1, one end of the pressure rod 3 is hinged with the connecting rod 4, and the other end of the pressure rod 3 is pressed against the pipe joint 2.

The working principle of the embodiment is as follows:

when the movable workbench reaches the working position, the movable workbench is lowered and pressed onto the pressing block 15, the pressing block 15 is pressed down, the pressing block 15 moves downwards, the pressing block 15 pushes the valve head 20 to move downwards through the upper spring 18 and the lower spring 21, when the main hydraulic station does not provide high-pressure oil for the pipe joint 2 yet, the valve head 20 clings to the inclined plane in the middle of the lower valve body 1 under the action of the pressing block 15 and the lower spring 21, the pipeline in the valve body is blocked, and the hydraulic oil in the small hydraulic station of the movable workbench is prevented from flowing backwards into the main hydraulic station. When the main hydraulic station supplies high-pressure oil to the pipe joint 2, the high-pressure oil pushes the valve head 20 upwards, the high-pressure oil of the main hydraulic station enters the valve block pipeline and enters the cavity of the upper valve body 10, the lower spring 21 plays a role in protecting the pipeline of the movable workbench when the middle hole of the pressing block 15 is supplied to the small-sized hydraulic station of the movable workbench, if the pressure of hydraulic oil supplied to the pipe joint 2 is overlarge, the upward force of the hydraulic oil to the valve head 20 is larger than the downward force of the valve head 20 of the lower spring 21, and even if the pressing block 15 is pressed down, the valve head 20 still clings to the upper valve body 10, so that the pipeline is not connected. When the movable workbench rises, the pressing block 15 rises under the upward action of hydraulic oil on the valve head 20 in the upper spring 18 and the lower valve body 1, and simultaneously drives the valve head 20 to rise so as to plug the pipeline of the upper valve body 10.

When hydraulic oil in a hydraulic pipeline communicated with the pipe joint 2 has pressure, the piston 5 moves outwards due to the hydraulic pressure in the lower valve body 1, the pipe joint is compressed by the piston 5 through the connecting rod 4 and the compression rod 3, and the greater the pressure of the hydraulic pipeline is, the greater the force of the compression rod 3 compressing the pipe joint is, so that the anti-loosening effect is stronger. When the pipe joint 2 needs to be disassembled, the hydraulic pipeline is decompressed, the pressure in the lower valve body 1 is equal to the external pressure, the piston 5 moves inwards under the action of the transverse spring 7, the piston 5 drives the compression bar 3 to move outwards and upwards through the connecting rod 4, the compression bar 3 does not press the pipe joint 2 any more, and the pipe joint can be unscrewed from the lower valve body 1.

In the embodiment, the automatic on-off of the oil way is realized by the automatic on-off valve block of the movable workbench through the opening and closing actions of the valve head, the reliability is high, and the automatic locking arrangement of the pipe joint of the lower valve body and the on-off arrangement of the upper valve body respond to the hydraulic oil pressure in a linkage manner, so that the safety of the device is further improved.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a moving worktable automatic switch-on valve piece which characterized in that:

the valve block can be automatically switched on and off when the movable workbench reaches the working position to lift;

the automatic valve block switching-on device of the movable workbench comprises a lower valve body (1), a pipe joint (2), an upper valve body (10), a cover (12), a pressing block (15), an upper spring (18), a lower spring (21), a valve rod (19) and a valve head (20);

the upper valve body (10) is fixed on the lower valve body (1), a mounting hole is formed in the center of the upper valve body (10), a valve rod (19) and a pressing block (15) are mounted in the mounting hole, a central hole is formed in the pressing block (15), the lower end of the hole is in a step shape, the valve rod (19) penetrates through the lower end of the hole of the pressing block (15) to be connected with the valve head (20), the valve head (20) stretches into a working cavity formed in the lower valve body (1), an upper spring (18) is mounted between the pressing block (15) and the upper valve body (10), a lower spring (21) is mounted between the valve head (20) and the pressing block (15), the cover (12) is fixed at the upper end of the upper valve body (10), and the pressing block (15) penetrates through the central hole of the cover (12) to be mounted;

the lower end of the lower valve body (1) is connected with a hydraulic pipeline through a pipe joint (2);

a seal is arranged between the cover (12) and the upper valve body (10).

2. The automatic valve-closing block for a mobile workbench according to claim 1, wherein the upper valve body (10) is fixed on the lower valve body (1) through a socket head cap screw (11).

3. The automatic valve-closing block for a mobile workbench according to claim 1, wherein the cover (12) is fixed at the upper end of the upper valve body (10) through a second hexagon socket head cap bolt (13).