CN215568399U - Synchronous throttle valve for controlling synchronous action of chuck - Google Patents

Abstract

The utility model discloses a synchronous throttle valve for controlling synchronous action of a chuck, which comprises a valve column, wherein a gas channel is arranged on the valve column in a penetrating manner, and a connecting thread is arranged on the outer side of the valve column. The zero-point positioning system is arranged on the existing zero-point chuck base, so that the action consistency of all zero-point chucks is ensured to be good within 1 second no matter how many chucks are, and the integral positioning precision of the zero-point positioning system is improved; the position and the size of the air passage of the base do not influence the action of the zero point positioning chuck any more, so that the design and the manufacturing difficulty of the air passage in the base of the chuck are greatly reduced; the utility model solves the big problems through extremely simple improvement, has extremely strong practicability and is easy to popularize and use.

Description

Synchronous throttle valve for controlling synchronous action of chuck

Technical Field

The utility model relates to the technical field of auxiliary control components of part positioning systems, in particular to a synchronous throttle valve for controlling synchronous actions of a chuck.

Background

In order to reduce the positioning time before part machining and improve the positioning accuracy of each procedure of parts, a high-accuracy zero positioning system is generally adopted for part machining as a positioning reference of each procedure, the zero positioning system is generally composed of a plurality of positioning chucks, the number of the specific chucks is determined by the size and weight of the parts, but generally, the condition of 4-6 chucks is the most common, all chucks can be installed on a bottom plate for convenience in installation, after the number and the distance of the chucks are determined, the chucks are designed on the bottom plate, and the chucks are installed on equipment.

In order to ensure that all the positioning chucks act simultaneously, an air channel is arranged in the bottom plate and is communicated with each clamp through an independent air hole, so that the action (loosening/locking) of all the zero positioning chucks can be controlled by using one air source, in order to ensure the accuracy of zero positioning, the air channel in the bottom plate is designed to be as close to the position of the zero positioning chuck as possible, and the action of all the zero positioning chucks is ensured to be consistent as much as possible, namely, the zero positioning chucks are loosened or locked simultaneously, so that the consistency and the integral positioning precision of the zero positioning system can be improved.

However, no matter how the air channel is designed, the existing zero-point chuck base cannot completely meet the requirement that all chucks act simultaneously, the chuck close to the air inlet must act firstly, the chuck far away from the air inlet acts after, and particularly, the zero-point chuck base is more obvious under the condition that the number of the chucks exceeds 6, and data of experiments and practical operation of users show that if the number of the chucks exceeds 6, the chuck acting firstly and the chuck acting last can exceed 2 seconds, and if the number of the chucks exceeds 8-10, the action time difference of the chucks can even exceed 5 seconds, meanwhile, in order to meet the requirement that all chucks act simultaneously as far as possible, the air channel of the base is inconvenient to design and manufacture, the actions of the chucks are asynchronous, and the overall precision and the service life of a zero-point positioning system are reduced.

In view of the above, it is necessary to research corresponding countermeasures to ensure the consistency of the positioning chucks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to avoid the defects in the prior art and provides the synchronous throttle valve for controlling the synchronous action of the chuck, thereby effectively solving the defects in the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that: the synchronous throttle valve for controlling the synchronous action of the chuck comprises a valve column, wherein a gas channel is arranged on the valve column in a penetrating mode, and connecting threads are arranged on the outer side of the valve column.

Further, the center of the top of the valve column is provided with a screwing groove.

Further, the screwing groove is a regular hexagon screwing groove.

Further, the gas passage is provided at a central axis of the spool.

Further, the diameter of the valve column is 5-6mm, and the diameter of the gas channel is 0.5-1 mm.

Further, the valve column is directly made of M5 or M6 jackscrews through punching.

Further, the synchronous throttle valve for controlling synchronous action of the chuck further comprises a wear-resistant column, an external thread structure matched with the connecting thread is arranged on the outer side of the wear-resistant column, a circumferential limiting structure is arranged between the wear-resistant column and the valve column, and a gas inlet matched with the gas channel is formed in the wear-resistant column.

Furthermore, circumference limit structure is including setting up the piece of preventing changeing at wear-resisting post top to and set up the groove of preventing changeing in the valve column bottom.

The technical scheme of the utility model has the following beneficial effects: the zero-point positioning system is arranged on the existing zero-point chuck base, so that the action consistency of all zero-point chucks is ensured to be good within 1 second no matter how many chucks are, and the integral positioning precision of the zero-point positioning system is improved; the position and the size of the air passage of the base do not influence the action of the zero point positioning chuck any more, so that the design and the manufacturing difficulty of the air passage in the base of the chuck are greatly reduced; the utility model solves the big problems through extremely simple improvement, has extremely strong practicability and is easy to popularize and use.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 4 is a state diagram illustrating the use of the present invention.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the synchronous throttle valve for controlling synchronous actions of chucks in the present embodiment includes a spool 1, a gas passage 101 is provided on the spool 1 in a penetrating manner, a connecting thread 102 is provided on an outer side of the spool 1, the connecting thread 102 extends from a top to a bottom of the spool 1, and cross-sectional dimensions of the gas passage 101 at any height position are equal.

The top center of the spool 1 is provided with a screw groove 103, the screw groove 103 is a regular hexagonal screw groove, and the gas passage 101 is provided at the center axis of the spool 1.

The diameter of the spool 1 is 5 to 6mm and the diameter of the gas channel 101 is 0.5 to 1mm, and preferably, the diameter of the gas channel 101 is 0.5 mm.

In a specific embodiment, the valve column 1 is made by directly punching a jackscrew of M5 or M6, and is made of stainless steel materials, so that the valve column is rust-proof and convenient to replace.

As shown in fig. 3, in the second embodiment, the synchronous throttle valve for controlling synchronous action of the chuck further includes a wear-resistant column 2, an external thread structure 201 matched with the connecting thread 102 is provided on the outer side of the wear-resistant column 2, a circumferential limiting structure is provided between the wear-resistant column 2 and the valve column 1, the circumferential limiting structure includes an anti-rotation block 202 provided on the top of the wear-resistant column 2 and an anti-rotation slot provided on the bottom of the valve column 1, the anti-rotation block 202 is matched with the anti-rotation slot in size, the anti-rotation block 202 can be in any shape capable of realizing circumferential limiting, such as triangle, square, etc., and the wear-resistant column 2 is provided with an air inlet 203 matched with the air channel 101.

When the installation, with wear-resisting post 2 setting in the downside, when high air current frequently passes through, holistic life of extension that can be great.

The working principle of the utility model is as follows:

the original zero chuck base is directly provided with air holes, the air holes are communicated with the chuck and an air passage in the base, and the action of the chuck is controlled by compressed air, so that the chuck close to an air source can act firstly under the influence of air pressure, the chuck far away from the air source does not act because the air pressure is not transferred, and the chuck can act after the air pressure is transferred, so that the action time difference of the chuck is caused to be original, and the time difference is longer as the number of the chucks is larger.

The utility model can be directly improved on the existing chuck base, the air hole on the existing chuck base is generally a phi 4 or phi 5 unthreaded hole, at this time, the threaded hole can be changed into an M5 or M6 on the basis of the existing air hole, then the synchronous throttle valve in the utility model is installed, the structure after installation is shown in figure 4, in the figure, 3 is the chuck base, 301 is an installation groove for installing a pneumatic chuck, 302 is an air passage arranged in the chuck base, 303 is a threaded hole of M5 or M6 transformed on the basis of the original phi 4 or phi 5 unthreaded hole, on the same chuck base 3, a plurality of chuck installation grooves 301 are designed according to actual requirements, namely, in the actual use, the synchronous throttle valve in the utility model is installed on the path between each pneumatic chuck and the air passage, so, after compressed air enters the air passage in the base, the chucks close to the air source receive the air pressure firstly, but the diameter of the air channel 101 is far smaller than that of the air hole, so that the pressure of the compressed air can be instantly increased at the throttle valve, according to the principle of fluid mechanics, the air can flow towards the place with relatively smaller pressure under the condition of meeting higher pressure, so that the compressed air can not flow through the throttle valve but can flow towards the chucks farther away (meaning the pressure is relatively smaller), when the air reaches the second chuck, the air can also meet the pressurization effect of the throttle valve, the air can continuously flow towards the third chuck, and so on, when the throttle valves of all the chucks have the compressed air, the air pressure in all the places can be automatically balanced and basically the same, at the moment, under the condition that the pressure in all the places is relatively consistent, the compressed air can basically enter the zero-point chuck through the novel synchronous throttle valve to drive each chuck, thus, regardless of the number of chucks, all chucks can act substantially simultaneously, and the greater the number of chucks, the more significant the effect of synchronization.

Experiments prove that after the synchronous throttle valve is installed, the time difference of the actions of all the chucks is less than 1 second, the requirement that all the chucks act simultaneously is completely met, and the overall positioning accuracy of the zero-point positioning system is improved.

The change of synchronous choke valve is also very simple, because the choke valve has adopted the stainless steel, consequently can not rust, and the appearance is the screw thread, only need with interior hexagonal spanner twist the choke valve in the screw hole of base can, if meet the condition that has the foreign matter in the compressed air and take place the choke valve dumpblock, only need twist off old choke valve, clear up the gas pocket and the sweetgum fruit way of base with compressed air, the clean back more new choke valve can, it is very convenient.

After the synchronous throttle valve is used, the gas path design of the original base is simpler, no special requirements are required in manufacturing, the installation requirements of the throttle valve can be met only by one corresponding threaded hole, the operation is simple, and the effect is obvious.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. A synchronous throttle valve for controlling synchronous action of a chuck is characterized in that: the valve comprises a valve column, wherein a gas channel is arranged on the valve column in a penetrating manner, and a connecting thread is arranged on the outer side of the valve column;

the synchronous throttle valve for controlling the synchronous action of the chuck further comprises a wear-resistant column, an external thread structure matched with the connecting thread is arranged on the outer side of the wear-resistant column, a circumferential limiting structure is arranged between the wear-resistant column and the valve column, and an air inlet matched with the air passage is formed in the wear-resistant column.

2. A synchronized throttle valve for controlling synchronized chuck actuation according to claim 1, wherein: and a screwing groove is formed in the center of the top of the valve column.

3. A synchronous throttle valve for controlling synchronous operation of a chuck as set forth in claim 2, wherein: the screwing groove is a regular hexagon screwing groove.

4. A synchronous throttle valve for controlling synchronous operation of a chuck as set forth in claim 2, wherein: the gas passage is provided at a central axis of the spool.

5. A synchronized throttle valve for controlling synchronized chuck actuation according to claim 1, wherein: the diameter of the valve column is 5-6mm, and the diameter of the gas channel is 0.5-1 mm.

6. A synchronized throttle valve for controlling synchronized chuck actuation according to claim 1, wherein: the valve column is directly made of M5 or M6 jackscrews through punching.

7. A synchronized throttle valve for controlling synchronized chuck actuation according to claim 1, wherein: the circumferential limiting structure comprises an anti-rotation block arranged at the top of the wear-resistant column and an anti-rotation groove arranged at the bottom of the valve column.

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