CN212635081U

CN212635081U - Valve body of reversing valve and machining and positioning tool for valve body

Info

Publication number: CN212635081U
Application number: CN202021362824.0U
Authority: CN
Inventors: 方月江; 祁泉炜; 许凯
Original assignee: Jingjiang Zhongshengxin Machinery Mfg Co ltd
Current assignee: Jingjiang Zhongshengxin Machinery Mfg Co ltd
Priority date: 2020-07-11
Filing date: 2020-07-11
Publication date: 2021-03-02
Anticipated expiration: 2030-07-11

Abstract

The application relates to a valve body of switching-over valve and be used for processing location frock of this valve body, this valve body include assembly surface and machined surface, and the assembly surface sets up with the machined surface relatively, has seted up one-level locating hole and second grade locating hole on the valve body, and one-level locating hole and second grade locating hole are the bell mouth, and the aperture of one-level locating hole and second grade locating hole reduces from the direction of assembly surface to machined surface gradually. This location frock includes processing platform and locating component, and the one side that processing platform is close to locating component is established to the reference surface, and locating component includes one-level locating pin and second grade locating pin, and when the valve body was placed on processing platform, the one-level locating pin was worn to locate in the one-level locating hole, and the second grade locating pin was worn to locate in the second grade locating hole, assembly surface and reference surface looks parallel and level. This application has the misoperation that reduces the staff, improves the effect of the qualification rate of valve body processing.

Description

Valve body of reversing valve and machining and positioning tool for valve body

Technical Field

The application relates to the field of positioning tools, in particular to a valve body of a reversing valve and a processing and positioning tool for the valve body.

Background

The multi-way reversing valve is a combined valve formed by combining an oil inlet body, an oil return body and a plurality of reversing valves, and mainly comprises a manual reversing valve. The hydraulic control system has the characteristics of compact structure, higher working pressure, good performance, reliable work and the like, is widely applied to engineering machinery such as forklifts, loaders, road rollers and the like and industries such as mines, light industry, agricultural machinery and the like, and is used for changing the flow direction and realizing the centralized control of a plurality of actuating mechanisms.

The reversing valve comprises a valve body, the valve body comprises an assembling surface and a processing surface, and the assembling surface and the processing surface are arranged oppositely. In the production process of the reversing valve, the processing surface of the valve body needs to be milled, drilled and the like. During processing, the valve body is fixed on the processing platform by a worker, and then the valve body is processed by operating the machine tool, so that the valve body has good product performance.

In view of the above-mentioned related art, the inventor believes that in the actual processing process, because the assembly surface and the processing surface of the valve body have structural similarity, a worker can easily install the valve body reversely to process the assembly surface, thereby causing processing failure.

SUMMERY OF THE UTILITY MODEL

In order to reduce staff's misoperation, improve the qualification rate of valve body processing, this application provides a valve body of switching-over valve and is used for the processing location frock of this valve body.

In a first aspect, the application provides a valve body of a reversing valve, which adopts the following technical scheme:

the valve body of the reversing valve comprises an assembling surface and a processing surface, wherein the assembling surface and the processing surface are arranged oppositely, a first-stage positioning hole and a second-stage positioning hole are formed in the valve body and penetrate through the valve body perpendicularly, the first-stage positioning hole and the second-stage positioning hole are conical holes, and the diameters of the first-stage positioning hole and the second-stage positioning hole are gradually reduced from the assembling surface to the processing surface.

Through adopting above-mentioned technical scheme, when the staff placed the valve body on the processing platform, because one-level locating hole and second grade locating hole are the bell mouth and are close to the aperture of assembly face department great for the valve body only has a mode of placing on the processing platform, the structure that is used for the location such as round pin axle can only insert in one-level locating hole and the second grade locating hole from the great department in aperture, effectively reduces the staff and puts the possibility of turning over the valve body, reduces misoperation, improves the qualification rate of valve body processing.

In a second aspect, the application provides a processing location frock for valve body adopts following technical scheme:

the utility model provides a processing location frock for valve body, this location frock is used for the processing location of foretell valve body, includes processing platform and locating component, the one side that processing platform is close to locating component is established to the reference surface, locating component includes one-level locating pin and second grade locating pin, the equal vertical fixation of one-level locating pin and second grade locating pin sets up on processing platform, when the valve body is placed on processing platform, the one-level locating pin is worn to locate in the one-level locating hole, the second grade locating pin is worn to locate in the second grade locating hole, the assembly surface is parallel and level with the reference surface mutually.

Through adopting above-mentioned technical scheme, the staff places the valve body on processing platform before processing the valve body to make the one-level locating pin be located the one-level locating hole, the second grade locating pin is located the second grade locating hole, and the assembly plane coincides mutually with the reference surface, has realized the quick location between valve body and the processing platform, improves work efficiency, adopts the locate mode of two holes one side, improves the machining precision of valve body.

Preferably, the first-stage positioning pin is a cylindrical pin, and the second-stage positioning pin is a diamond pin.

Through adopting above-mentioned technical scheme, one-level locating pin adopts the cylindric lock and assembly surface and reference surface coincide mutually, and the valve body has been restricted 5 degrees of freedom this moment, if the second locating pin also adopts the cylindric lock, then can lead to the excessive location of valve body, and the excessive location can produce an additional effect of power to the valve body that has already been fixed a position, reduces the precision of processing. And the center distance between the first-level positioning hole and the second-level positioning hole has certain tolerance, and the combination of the cylindrical pin and the diamond pin is adopted, so that the center distance tolerance between the first-level positioning hole and the second-level positioning hole is not easy to interfere with the matching between the two positioning pins and the two positioning holes, and the installation is convenient.

Preferably, the reference surface is provided with a groove, the groove is located between the valve body and the processing platform, positioning bosses are arranged on two sides of the valve body in the width direction and fixedly connected with the valve body, the end face, far away from the valve body, of each positioning boss and the assembly face are located on the same plane, and the end face, far away from the valve body, of each positioning boss is attached to the reference surface.

Through adopting above-mentioned technical scheme, because the influence of processing environment, there are dust and iron fillings on reference surface and the assembly surface easily, need clear up the dust and the iron fillings at the position that both contacted when the installation to make reference surface and assembly surface can closely laminate, relatively consume manpower and time at the in-process of actual clearance and installation, and if there is dust and the iron fillings that do not clear up and make the machining precision reduce easily for reference surface and assembly surface. The groove and the positioning boss are arranged, the end face of the positioning boss is attached to the reference face, the contact area between the valve body and the reference face is reduced under the condition that the reference face and the assembling face are coplanar, so that the end face of the positioning boss is conveniently kept to be closely attached to the reference face, and the processing precision is improved.

Preferably, the processing platform is provided with a first fixing component and a second fixing component for fixing the valve body, the first fixing component comprises a first connecting column and a first pressing plate, the first connecting column is vertically fixed on the processing platform, a first locking hole is formed in the middle of the first pressing plate, the first connecting column penetrates through the first locking hole, and one end, far away from the processing platform, of the first connecting column is connected with a first nut in a threaded manner.

Through adopting above-mentioned technical scheme, the staff places the valve body after on processing platform, overlaps first clamp plate on first connecting post for first clamp plate contacts with the valve body, and the staff screws first nut afterwards, makes first clamp plate exert decurrent pressure to the valve body, thereby realizes the fixed connection of valve body and processing platform, reduces the valve body and adds the possibility that the skew appears in man-hour, improves processingquality.

Preferably, a spring is sleeved on the first connecting column, one end of the spring is abutted to the processing platform, the other end of the spring is abutted to the first pressing plate, and the spring is in a compressed state when the first fixing component locks and fastens the valve body.

Through adopting above-mentioned technical scheme, when first nut locked the fastening, first nut applyed decurrent pressure to first clamp plate, and the spring was in compression state this moment, and the spring applyed elasticity to first clamp plate to produce the pretension effect to first nut, when the valve body in the course of working, first nut is difficult not hard up, has improved the fixed effect of locking.

Preferably, the fixed subassembly of second includes second spliced pole and second clamp plate, second spliced pole vertical fixation sets up on processing platform, the one end threaded connection of second grade spliced pole has the second nut, the second locking hole that is used for the second spliced pole to pass is offered at the middle part of second clamp plate, the connecting hole has been seted up to one side of second clamp plate width direction, be provided with the support column on the second clamp plate, the support column is worn to locate in the connecting hole, threaded connection between support column and the second clamp plate, the support column is located between second clamp plate and the processing platform.

Through adopting above-mentioned technical scheme, the staff places the valve body on processing platform, overlaps the second clamp plate cover on the second spliced pole to make the second clamp plate and the upper surface contact of valve body, screw the second nut, fix the valve body. Set up the support column on the second clamp plate, when using the second clamp plate to fix the valve body, the support column can provide the supporting role to the second clamp plate, reduces the second clamp plate and takes place the condition of slope, improves fixed effect.

Preferably, lifting columns are fixedly arranged at two opposite edges of the processing platform.

Through adopting above-mentioned technical scheme, make things convenient for the staff to remove the transportation with processing platform, improve the convenience of operation.

Drawings

Fig. 1 is a schematic view of the overall structure of a valve body of a reversing valve of the present embodiment.

Fig. 2 is a schematic structural diagram of the whole of the machining and positioning tool for the valve body according to the embodiment.

Fig. 3 is a schematic view of the entire structure of a portion a in fig. 2.

Description of reference numerals: 1. a valve body; 11. a primary positioning hole; 12. a secondary positioning hole; 13. an assembly surface; 14. positioning the boss; 15. processing the dough; 2. a processing platform; 21. lifting the lifting column; 22. a groove; 23. a reference plane; 3. a positioning assembly; 31. a first-stage positioning pin; 32. a second-stage positioning pin; 4. a first fixed component; 41. a first connecting column; 42. a first platen; 421. a first locking hole; 43. a spring; 44. a first nut; 5. a second fixed component; 51. a second connecting column; 52. a second platen; 521. a second locking hole; 522. connecting holes; 53. a support pillar; 54. a second nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a valve body of a reversing valve. Referring to fig. 1 and 2, the valve body 1 includes an assembly surface 13 and a processing surface 15, the assembly surface 13 and the processing surface 15 are arranged oppositely, a first-stage positioning hole 11 and a second-stage positioning hole 12 are formed in the valve body 1, the first-stage positioning hole 11 and the second-stage positioning hole 12 are both tapered holes and penetrate through the valve body 1, the diameters of the first-stage positioning hole 11 and the second-stage positioning hole 12 are gradually reduced from the assembly surface 13 to the processing surface 15, four positioning bosses 14 are arranged on the surface of the valve body 1 close to the assembly surface 13, the four positioning bosses 14 are located at corners of the valve body 1, and end faces of the four positioning bosses 14 and the assembly surface 13 are.

The implementation principle of the valve body of the reversing valve in the embodiment of the application is as follows: in the production process of the reversing valve, the processing surface 15 of the valve body 1 needs to be milled, drilled and the like. Because the processing surface 15 and the assembling surface 13 have similarity, the processing surface 15 and the assembling surface 13 are easily reversed, and the assembling surface 13 is processed. The first-level locating hole 11 and the second-level locating hole 12 are tapered holes, pin shafts for locating and the like can only penetrate through the larger hole diameter positions of the first-level locating hole 11 and the second-level locating hole 12, the possibility of reversing the valve body 1 is reduced through the fool-proof design, and the production yield of the valve body 1 is improved.

The embodiment of the application further discloses a processing positioning tool for the valve body. Referring to fig. 1 and 2, the positioning tool comprises a processing platform 2, a positioning assembly 3, a first fixing assembly 4 and a second fixing assembly 5, wherein lifting columns 21 are fixedly arranged at two opposite edges of the processing platform 2 so as to facilitate lifting. Locating component 3 is fixed to be set up on processing platform 2, and processing platform 2 sets up to reference surface 23 towards the one side of locating component 3, has seted up a plurality of recesses 22 on the reference surface 23, and a plurality of recesses 22 evenly arrange along the length direction of processing platform 2, and locating component 3 is located recess 22, and valve body 1 places in the top of recess 22, and the terminal surface and the reference surface 23 of location boss 14 laminate mutually.

Referring to fig. 1 and 3, the positioning assembly 3 includes a first-stage positioning pin 31 and a second-stage positioning pin 32, and the first-stage positioning pin 31 and the second-stage positioning pin 32 may be cylindrical pins, diamond pins, conical pins, etc., as long as the positioning function is performed on the valve body 1. In this embodiment, the first-stage positioning pin 31 is a cylindrical pin, the second-stage positioning pin 32 is a diamond pin, and when the valve body 1 is fixed on the processing platform 2, the first-stage positioning pin 31 is located in the first-stage positioning hole 11, and the second-stage positioning pin 32 is located in the second-stage positioning hole 12.

Referring to fig. 3, the first fixing member 4 is disposed between two adjacent grooves 22. First fixed subassembly 4 includes first spliced pole 41 and first clamp plate 42, first spliced pole 41 and processing platform 2 fixed connection, the cover is equipped with spring 43 on the first spliced pole 41, the one end threaded connection of first spliced pole 41 has first nut 44, first locking hole 421 has been seted up at first clamp plate 42's middle part, first spliced pole 41 is worn to locate in first locking hole 421, the one end and the processing platform 2 butt of spring 43, the other end and the first clamp plate 42 butt of spring 43, first clamp plate 42 is located between first nut 44 and the spring 43, the bottom surface at the length direction both ends of first clamp plate 42 is laminated with the upper surface of valve body 1 mutually.

Referring to fig. 3, the second fixing assembly 5 is disposed at the edge of the processing platform 2, the second fixing assembly 5 includes a second connecting column 51, a supporting column 53 and a second pressing plate 52, a second locking hole 521 and a connecting hole 522 are formed in the second pressing plate 52, the axis of the second locking hole 521 is parallel to the axis of the connecting hole 522, the supporting column 53 is in threaded connection with the connecting hole 522, and the supporting column 53 is located between the second pressing plate 52 and the processing platform 2. The second connecting column 51 penetrates through the second locking hole 521, one end of the second connecting column 51 is fixedly connected with the processing platform 2, and the other end of the second connecting column 51 is in threaded connection with a second nut 54.

The implementation principle of the processing positioning tool for the valve body in the embodiment of the application is as follows: the staff installs first fixed subassembly 4 and second fixed subassembly 5 on processing platform 2 earlier, installs first fixed subassembly 4 between two adjacent recesses 22, with first spliced pole 41 vertical fixation on processing platform 2, overlaps spring 43 cover on first spliced pole 41 for the lower extreme and the processing platform 2 looks butt of spring 43, then installs first clamp plate 42 on first spliced pole 41, at the first nut 44 of screw in. Then, the second fixing component 5 is installed at the edge of the processing platform 2, the second connecting column 51 is vertically fixed on the processing platform 2, then the second pressing plate 52 is connected with the supporting column 53, the second pressing plate 52 is installed on the second connecting column 51, and the second nut 54 is screwed in. The staff places valve body 1 on processing platform 2 to make one-level locating pin 31 insert in one-level locating hole 11, second grade locating pin 32 inserts in second grade locating hole 12, and the terminal surface of location boss 14 laminates with reference surface 23 mutually, through the locate mode of two holes one side, realize valve body 1 and processing platform 2's quick accurate location, thereby improve processingquality. The staff rotates first clamp plate 42 and second clamp plate 52 for first clamp plate 42 and second clamp plate 52 are located the top of valve body 1, and later screw one-level nut and second grade nut, carry out quick fixation with valve body 1, and convenient operation adds the difficult skew of valve body 1 man-hour, thereby improves the processing effect.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A valve body of a reversing valve, the valve body (1) comprises an assembling surface (13) and a processing surface (15), the assembling surface (13) and the processing surface (15) are oppositely arranged, and the reversing valve is characterized in that: the valve body (1) is provided with a first-stage positioning hole (11) and a second-stage positioning hole (12), the first-stage positioning hole (11) and the second-stage positioning hole (12) vertically penetrate through the valve body (1), the first-stage positioning hole (11) and the second-stage positioning hole (12) are conical holes, and the diameters of the first-stage positioning hole (11) and the second-stage positioning hole (12) are gradually reduced from an assembling surface (13) to a machining surface (15).

2. A processing location frock for valve body, this location frock is used for the processing location of the valve body of claim 1, includes processing platform (2) and locating component (3), its characterized in that: processing platform (2) are close to one side of locating component (3) and establish as reference surface (23), locating component (3) include one-level locating pin (31) and second grade locating pin (32), one-level locating pin (31) and the equal vertical fixation setting of second grade locating pin (32) are on processing platform (2), when valve body (1) is placed on processing platform (2), one-level locating pin (31) are worn to locate in one-level locating hole (11), second grade locating pin (32) are worn to locate in second grade locating hole (12), assembly face (13) and reference surface (23) looks parallel and level.

3. The machining and positioning tool for the valve body according to claim 2, characterized in that: the first-stage positioning pin (31) is a cylindrical pin, and the second-stage positioning pin (32) is a diamond pin.

4. The machining and positioning tool for the valve body according to claim 2, characterized in that: set up recess (22) on reference surface (23), recess (22) are located between valve body (1) and processing platform (2), valve body (1) width direction's both sides all are provided with location boss (14), location boss (14) all with valve body (1) fixed connection, the terminal surface and assembly face (13) that valve body (1) were kept away from in location boss (14) are in the coplanar, the terminal surface and the reference surface (23) laminating of valve body (1) are kept away from in location boss (14) mutually.

5. The machining and positioning tool for the valve body according to claim 2, characterized in that: be provided with first fixed subassembly (4) that are used for fixed valve body (1) on processing platform (2), first fixed subassembly (4) include first spliced pole (41) and first clamp plate (42), first spliced pole (41) vertical fixation sets up on processing platform (2), first locking hole (421) have been seted up at the middle part of first clamp plate (42), first spliced pole (41) are worn to locate in first locking hole (421), the one end threaded connection that processing platform (2) were kept away from in first spliced pole (41) has first nut (44).

6. The machining and positioning tool for the valve body according to claim 5, characterized in that: the valve body (1) is locked and fastened by the first fixing component (4), and the spring (43) is in a compression state.

7. The machining and positioning tool for the valve body according to claim 2, characterized in that: a second fixing component (5) for fixing the valve body (1) is arranged on the processing platform (2), the second fixing component (5) comprises a second connecting column (51) and a second pressure plate (52), the second connecting column (51) is vertically and fixedly arranged on the processing platform (2), one end of the second connecting column (51) is in threaded connection with a second nut (54), the middle part of the second pressure plate (52) is provided with a second locking hole (521) for a second connecting column (51) to pass through, one side of the second pressing plate (52) in the width direction is provided with a connecting hole (522), a supporting column (53) is arranged on the second pressing plate (52), the supporting column (53) is arranged in the connecting hole (522) in a penetrating way, the supporting column (53) is in threaded connection with the second pressing plate (52), and the supporting column (53) is located between the second pressing plate (52) and the machining platform (2).

8. The machining and positioning tool for the valve body according to claim 2, characterized in that: lifting columns (21) are fixedly arranged at two opposite edges of the processing platform (2).