CN210499355U

CN210499355U - Central clamping device for finish machining of valve seat

Info

Publication number: CN210499355U
Application number: CN201921071290.3U
Authority: CN
Inventors: 杨振瓯
Original assignee: Kunshan Dewiworkang Machinery Co Ltd
Current assignee: Kunshan Dewiworkang Machinery Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-12
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a central clamping device of disk seat finish machining relates to clamping device technical field, for solving the unsatisfactory and the valve seat of course of working of valve seat fixed effect easily receives the problem that the thermal production deformation influences the disk seat qualification rate in the course of working. Fixing device is installed to the top of base, the nozzle is installed to fixing device's both sides, the water tank is installed to one side of base, the internally mounted of water tank has the water pump, the play water end and the nozzle of water pump lead to pipe sealing connection, drive arrangement is all installed to fixing device's both sides, flange connection dish is installed to one side of drive arrangement, the pneumatic cylinder is installed to one side of flange connection dish, the telescopic link is installed to one side of pneumatic cylinder, the stopper is installed to one side of telescopic link, the mount is installed to drive arrangement's upper end, the cylinder is installed to the below middle part of mount, the dead lever is installed to the below of cylinder, the air pump is installed to one side of cylinder.

Description

Central clamping device for finish machining of valve seat

Technical Field

The utility model relates to a clamping device technical field specifically is a central clamping device of disk seat finish machining.

Background

The valve seat is a detachable surface part in the valve, is used for supporting the valve core at the fully closed position and forms a sealing pair, a clamping device of a valve seat finish machining center is generally used in the machining process of a common valve seat, and the clamping device of the valve seat finish machining center is generally used for preventing the valve seat from generating displacement or vibration in the machining process.

However, the existing clamping device for the center of valve seat finish machining cannot fix the valve seat in an all-around manner, the valve seat is machined by a very fine work, when the valve seat is machined by a machining head, machining is not accurate due to slight movement, the valve seat is scrapped, meanwhile, a large amount of heat is generated on the surface of the valve seat due to friction when the valve seat is machined, the valve seat is a very fine part, slight deformation is easily caused due to heating of the valve seat, machining of the valve seat can be influenced, machining of the valve seat fails, and resource waste is caused, so that the clamping device for the center of valve seat finish machining is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a central clamping device of disk seat finish machining to propose among the above-mentioned background art that the fixed effect is unsatisfactory and the disk seat easily receives the problem that the disk seat qualification rate was influenced by heat production deformation in the course of working in the disk seat course of working.

In order to achieve the above object, the utility model provides a following technical scheme: a clamping device for a valve seat finish machining center comprises a base, wherein a fixing device is installed above the base and comprises a fixing seat, a fixing table, bolts and installation feet, the fixing table is installed above the fixing seat, the installation feet are arranged at four corners of the fixing seat, the bolts are installed on the installation feet, nozzles are installed at two ends of two sides of the fixing seat, a water tank is installed at one side of the base, a water pump is installed inside the water tank, the water outlet end of the water pump is connected with the nozzles in a sealing mode through a water pipe, a valve seat rough blank is arranged above the fixing seat, driving devices are installed on two sides of the fixing device, a flange connecting disc is installed at one side of each driving device, a hydraulic cylinder is installed at one side of the flange connecting disc, a telescopic rod is installed at one side of the hydraulic cylinder, the air pump is characterized in that a fixing frame is installed at the upper end of the driving device, an air cylinder is installed in the middle of the lower portion of the fixing frame, a fixing rod is installed below the air cylinder, and air pumps are installed on one sides of the air cylinder and the driving device.

Preferably, the number of the driving devices, the flange connection plate, the hydraulic cylinders, the telescopic rods and the limiting blocks is two, and the driving devices, the flange connection plate, the hydraulic cylinders, the telescopic rods and the limiting blocks are symmetrical relative to the vertical center line of the fixing seat.

Preferably, the fixed station is located above the fixed seat, and the fixed station and the fixed seat are of an integrated structure.

Preferably, the number of the nozzles is four, and the four nozzles are symmetrical about a vertical center line of the fixed seat.

Preferably, the fixing rod is positioned above the valve seat rough blank.

Preferably, one end of the bolt penetrates through the mounting foot and the base respectively, and one end of the bolt is located inside the base.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this centre gripping device of disk seat finish machining center is provided with the dead lever, stopper and fixed station, through putting the thick embryo of disk seat on the fixed station, then both sides let the pneumatic cylinder start work make the stopper press from both sides tight thick embryo of disk seat through the air pump, make the cylinder start work make the dead lever fixed the thick embryo of disk seat through the air pump again at last, fix the thick embryo of disk seat from each angle of the thick embryo of disk seat, can not remove when the thick embryo of disk seat carries out the finish machining like this, can not lead to the wasting of resources because of the thick embryo processing failure of disk seat.

2. This fine machining of disk seat center clamping device installs the nozzle, when processing the thick embryo of disk seat, because the friction produces a large amount of heats, the disk seat is a very meticulous spare part, the thick embryo of disk seat is being heated and is leading to slight variant easily man-hour, can influence the precision of disk seat, the thick embryo of general disk seat is cooling down through the manual water of operating personnel when carrying out the finish machining, but the inconvenience of manual cooling ten minutes, forget at the in-process of processing easily, the disk seat that leads to processing out is unqualified, just can keep the water spray state always when the disk seat carries out the finish machining through the nozzle of installation, just cooling down well at the thick embryo of fine machining's disk seat.

Drawings

FIG. 1 is an overall front view of the present invention;

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

fig. 3 is a perspective view of the fixing device of the present invention.

In the figure: 1. a base; 2. a fixing device; 3. a fixed seat; 4. a fixed table; 5. a bolt; 6. valve seat rough blank; 7. a nozzle; 8. a drive device; 9. a flange connecting plate; 10. a hydraulic cylinder; 11. a telescopic rod; 12. a fixed mount; 13. a cylinder; 14. fixing the rod; 15. a limiting block; 16. mounting a foot; 17. an air pump; 18. a water pipe; 19. a water tank; 20. and (4) a water pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a clamping device for a valve seat finish machining center comprises a base 1, a fixing device 2 is installed above the base 1, the fixing device 2 comprises a fixing seat 3, a fixing table 4, bolts 5 and mounting feet 16, the fixing table 4 is installed above the fixing seat 3, the mounting feet 16 are arranged at four corners of the fixing seat 3, the bolts 5 are installed on the mounting feet 16, nozzles 7 are installed at two ends of two sides of the fixing seat 3, a water tank 19 is installed at one side of the base 1, a water pump 20 is installed inside the water tank 19, a water outlet end of the water pump 20 is connected with the nozzles 7 in a sealing mode through a water pipe 18, a valve seat rough blank 6 is arranged above the fixing seat 3, a driving device 8 is installed at two sides of the fixing device 2, a flange connection plate 9 is installed at one side of the driving device 8, a hydraulic cylinder 10 is installed at one side of the flange connection plate, the upper end of the driving device 8 is provided with a fixed frame 12, the middle part of the lower part of the fixed frame 12 is provided with an air cylinder 13, the lower part of the air cylinder 13 is provided with a fixed rod 14, and one side of the air cylinder 13 and one side of the driving device 8 are provided with an air pump 17.

Further, drive arrangement 8, flange connection pad 9, pneumatic cylinder 10, telescopic link 11 and stopper 15 all are provided with two, and two drive arrangement 8, flange connection pad 9, pneumatic cylinder 10, telescopic link 11 and stopper 15 are all symmetrical about the perpendicular central line of fixing base 3, through setting up two relative stoppers 15, can improve the fixed effect of the thick embryo 6 of disk seat.

Further, fixed station 4 is located the top of fixing base 3, and fixed station 4 and fixing base 3 structure as an organic whole increase the fastness between fixed station 4 and the fixing base 3, guarantees that fixed station 4 can not break away from fixing base 3 in the processing engineering, leads to the processing failure, causes the staff injured.

Further, four nozzles 7 are arranged, the four nozzles 7 are symmetrical about the vertical center line of the fixing seat 3, water is sprayed through the nozzles 7, the valve seat rough blank 6 in the finish machining process is cooled, and the machining qualified rate is improved.

Further, the fixing rod 14 is located above the valve seat rough blank 6, and the valve seat rough blank 6 is fixed again through the fixing rod 14, so that firmness of the valve seat rough blank 6 is improved.

Further, installation foot 16 and base 1 are passed respectively to the one end of bolt 5, and the one end of bolt 5 is located base 1's inside, and fixing base 3 can cause the harm when long-time during operation, influences the fine machining effect, fixes fixing base 3 and base 1 with the bolt, can be convenient change fixing base 3.

The working principle is as follows: when in use, the valve seat rough blank 6 is firstly placed on the fixed table 4 arranged above the fixed seat 3, then the hydraulic cylinder 10 starts to work through the air pump 17, the limit block 15 arranged at one side of the telescopic rod 11 moves to one side of the valve seat rough blank 6 through the hydraulic cylinder 10, two limit blocks 15 are arranged, two ends of the valve seat rough blank 6 are fixed through the two limit blocks 15, finally the air pump 17 arranged below the fixed frame 12 starts to work through the air cylinder 13, the fixed rod 14 fixes the valve seat rough blank 6 through the air cylinder 13, thus the valve seat rough blank 6 is fixed from all directions, the fixing effect of the valve seat rough blank 6 is increased, the valve seat rough blank 6 cannot move when being finely processed, the valve seat rough blank 6 can generate a large amount of heat in the finely processing process, and the valve seat rough blank 6 can slightly deform through the principle of thermal expansion and cold contraction, therefore, the accuracy of the valve seat rough blank 6 is not enough, the workpiece is unqualified, water enters the water pipe 18 and is sprayed out from the nozzle 7 through the water pump 20 arranged inside the water tank 19, the valve seat rough blank 6 can be cooled in the fine machining process of the valve seat rough blank 6, the valve seat rough blank 6 which is being machined can be kept at a proper temperature, and the machining effect is guaranteed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a central clamping device of disk seat finish machining, includes base (1), its characterized in that: fixing device (2) is installed above base (1), fixing device (2) comprises a fixing base (3), a fixing table (4), bolts (5) and installation feet (16), fixing table (4) is installed above fixing base (3), installation feet (16) are arranged at four corners of fixing base (3), bolts (5) are installed on installation feet (16), nozzles (7) are installed at two ends of two sides of fixing base (3), a water tank (19) is installed at one side of base (1), a water pump (20) is installed inside water tank (19), a water outlet end of water pump (20) is connected with nozzles (7) in a sealing mode through water pipes (18), a rough valve seat blank (6) is arranged above fixing base (3), and a driving device (8) is installed at two sides of fixing device (2), flange connection dish (9) is installed to one side of drive arrangement (8), pneumatic cylinder (10) are installed to one side of flange connection dish (9), telescopic link (11) are installed to one side of pneumatic cylinder (10), stopper (15) are installed to one side of telescopic link (11), mount (12) are installed to the upper end of drive arrangement (8), cylinder (13) are installed to the below middle part of mount (12), dead lever (14) are installed to the below of cylinder (13), air pump (17) are all installed to one side of cylinder (13) and drive arrangement (8).

2. A valve seat finishing center clamp assembly as set forth in claim 1, wherein: the driving device (8), the flange connection disc (9), the hydraulic cylinder (10), the telescopic rod (11) and the limiting block (15) are arranged in two, and the driving device (8), the flange connection disc (9), the hydraulic cylinder (10), the telescopic rod (11) and the limiting block (15) are symmetrical about the vertical center line of the fixing seat (3).

3. A valve seat finishing center clamp assembly as set forth in claim 1, wherein: the fixing table (4) is positioned above the fixing seat (3), and the fixing table (4) and the fixing seat (3) are of an integrated structure.

4. A valve seat finishing center clamp assembly as set forth in claim 1, wherein: the number of the nozzles (7) is four, and the four nozzles (7) are symmetrical relative to the vertical center line of the fixed seat (3).

5. A valve seat finishing center clamp assembly as set forth in claim 1, wherein: the fixing rod (14) is positioned above the valve seat rough blank (6).

6. A valve seat finishing center clamp assembly as set forth in claim 1, wherein: one end of the bolt (5) penetrates through the mounting foot (16) and the base (1) respectively, and one end of the bolt (5) is located inside the base (1).