CN106041715A - Valve body taper face grinding tool and grinding method - Google Patents

Valve body taper face grinding tool and grinding method Download PDF

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Publication number
CN106041715A
CN106041715A CN201610606365.8A CN201610606365A CN106041715A CN 106041715 A CN106041715 A CN 106041715A CN 201610606365 A CN201610606365 A CN 201610606365A CN 106041715 A CN106041715 A CN 106041715A
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CN
China
Prior art keywords
grinding
taper
valve
abrasive
lapping stick
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610606365.8A
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Chinese (zh)
Other versions
CN106041715B (en
Inventor
王国虎
曾品其
李余明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Chengfeng Fluid Technology Group Co., Ltd.
Chengdu Chengfeng Valve Co., Ltd.
Chengdu Chenggao Valve Co., Ltd.
Original Assignee
CHENGDU CHENGGAO VALVE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHENGDU CHENGGAO VALVE Co Ltd filed Critical CHENGDU CHENGGAO VALVE Co Ltd
Priority to CN201610606365.8A priority Critical patent/CN106041715B/en
Publication of CN106041715A publication Critical patent/CN106041715A/en
Application granted granted Critical
Publication of CN106041715B publication Critical patent/CN106041715B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00Lapping machines or devices; Accessories
    • B24B37/02Lapping machines or devices; Accessories designed for working surfaces of revolution
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00Lapping machines or devices; Accessories
    • B24B37/11Lapping tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/10Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/14Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding conical surfaces, e.g. of centres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35Accessories
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/22Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring angles or tapers; for testing the alignment of axes

Abstract

The invention relates to a valve body taper face grinding tool and grinding method. The grinding tool comprises a grinding body, a grinding strip and a spring; a caulking groove matched with the grinding strip is formed in the outer surface of the grinding body, a spring cavity is formed in the bottom of the caulking groove, and the spring is installed in the spring cavity; and a counterbore is formed in the outer surface of the grinding strip, an adjusting screw is arranged in the counterbore, the tail of the adjusting screw is screwed into the grinding body, the spring abuts against the grinding strip, the outer surface of the grinding strip is higher than the outer surface of the grinding body, the grinding strip is parallel to a generatrix of the grinding body, and the adjusting screw is perpendicular to the grinding strip. The grinding method comprises a grinding procedure which conducts grinding through the grinding tool, the grinding body is installed on a main shaft of a digital controlled drill, a valve body is installed on a working table of the digital controlled drill, and the main shaft of the digital controlled drill drives the grinding strip to grind a valve body taper face. According to the valve body taper face grinding tool and grinding method, pressure exerted by the spring to the grinding strip acts on the cock valve body taper face, so that the taper face is ground, and the roughness can reach 0.2.

Description

A kind of valve body taper surface grinding tool and Ginding process
Technical field
The present invention relates to valve technology field, particularly relate to a kind of valve body taper surface grinding tool and Ginding process.
Background technology
Plug valve is to use a kind of valve the earliest, and simple in construction, switch are rapid, fluid resistance is little.The work of plug valve Principle: using the cock body valve as opening and closing element of band through hole, cock body rotates with valve rod, to realize switching motion.The rotation of plug valve Cock body mostly is cone, coordinates composition sealing pair with the conical bore face of valve body.Lubricant plug valve is most important one.Special Grease inject between valve body taper hole and cock body from cock body top, form oil film and open and close moment to reduce, improve sealing and Service life.Its operating pressure is up to 64 MPas, and maximum operating temperature is up to 325 DEG C, and maximum caliber is up to 600 millimeters.Rotation The passage of plug valve has various ways.Common through type is mainly used in blocking fluid.Plug valve is mainly for opening and closing pipeline It is used with equipment medium.The valve body conical surface must coincide with cock frustoconical bevel angle, and the roughness requirements of taper surface is high.Cock The taper surface angle of (stopper) and roughness can reach on cylindrical grinder in grinding.But valve body is obform body, it is impossible to by mill Bed carries out grinding taper surface.Valve body taper surface is processed on numerical control vertical lathe, it is ensured that the angle of taper surface, coarse Degree can reach 3.2, but can not meet requirement.
Summary of the invention
It is desirable to provide valve body taper surface grinding tool and Ginding process, utilize grinding tool spring to grinding row replacement The pressure added is applied on faucet valve taper surface, thus is ground taper surface, and roughness can reach 0.2.
For reaching above-mentioned purpose, the technical solution used in the present invention is as follows:
A kind of valve body taper surface grinding tool, including abrasive body, lapping stick and spring, described abrasive body is rounding mesa-shaped, Described abrasive body outer surface has the caulking groove adaptive with lapping stick, at least has 2 spring cavitys, spring cavity interval row bottom caulking groove Point-blank, the orientation of spring cavity is parallel with the bus of abrasive body, is provided with spring in spring cavity for row;
The outer surface of described lapping stick has counter sink, has regulation screw in counter sink, and described regulation screw afterbody screws in In abrasive body, spring top is on lapping stick, and the outer surface of lapping stick exceeds the mother of the outer surface of abrasive body, lapping stick and abrasive body Line is parallel, and regulation screw is vertical with lapping stick, and described lapping stick at least 2, lapping stick is arranged the most at equal intervals.
Further, described lapping stick has 4.
Further, the end face of the through abrasive body of described caulking groove and bottom surface, the bottom of abrasive body is provided with the spacing of circle Plate, the diameter of limiting plate is less than the diameter of abrasive body bottom surface, and the diameter of limiting plate is more than the distance of caulking groove to abrasive body axis.
Further, also include taper shank and connection dish, described abrasive body top with to be connected dish affixed, described connection dish and cone Handle is affixed, and taper shank is coaxial with abrasive body.
Further, 6-10 spring cavity is had bottom each caulking groove.
Further, having 8 spring cavitys bottom each caulking groove, on each lapping stick, interval has 2 counter sinks.
A kind of valve body taper surface Ginding process, including grinding step, described grinding step is to use described grinding tool to enter Row grinds, and is arranged on by abrasive body on numerical control drilling machine on main shaft, is arranged on by valve body on numerical control drilling machine workbench, numerical control drilling machine Main shaft drive lapping stick valve body taper surface is ground.
Further, first carrying out grinding process before described grinding step, described grinding process is to use grinding fixture to enter Row grinding, described grinding fixture includes motor and emery wheel, is arranged on the knife rest of numerical control vertical lathe by grinding fixture, is pacified by valve body Being contained on the workbench of numerical control vertical lathe, workbench band moving valve rotates, and knife rest walking program pumps, and motor drives emery wheel Valve body taper surface is carried out grinding, and the movement locus of knife rest is conical helix.
Further, valve body taper surface carrying out after described grinding step angle detection, angle detection includes following step Rapid:
Step 1. is along the circumferential direction uniformly labelled to few 3 slicker solder bars, slicker solder bar and valve body taper surface on valve body taper surface Bus parallel;
The cock of non-grinding is put in valve pocket by step 2., and acts on certain pressure in cock;
Step 3. takes out cock, measures the thickness of the slicker solder bar flattened;
According to the thickness of the slicker solder bar flattened, step 4. judges whether the tapering of valve body taper surface and cock taper surface is kissed Close.
Further, if the tapering of valve body taper surface and cock taper surface is misfitted and carried out following behaviour in described step 4 Make, during with the cylindrical grinder processing cock conical surface, the angle of fine setting cylindrical grinder bistrique, make angle and the valve body taper surface of bistrique Tapering mates.
Further, in described grinding process, the direction of rotation of emery wheel is identical with the direction of rotation of valve body.
Compared with prior art, the method have the advantages that
1. the present invention utilizes spring to be applied to the pressure that lapping stick applies on faucet valve taper surface, thus to taper surface Being ground, roughness can reach 0.2;
2., after numerical control vertical lathe programming Vehicle Processing, valve body taper surface roughness can reach 3.2, now without changing machine Bed, is directly entered the grinding process of the present invention, saves man-hour, and valve body taper surface roughness can reach 0.8;
3. the present invention is directed to the detection of valve body taper surface angle, the detection method of design specialized, it is ensured that valve body taper surface and rotation The tapering of plug meets the requirements;
4. the present invention is directed to the valve body special grinding tool of taper surface fabrication design, frock couples with numerical control drilling machine, grinds work Load onto down and move reciprocatingly, utilize grinding tool spring that the pressure that lapping stick applies is applied on faucet valve taper surface, from And taper surface is ground, roughness can reach 0.2.
Accompanying drawing explanation
Fig. 1 is the structural representation of grinding tool in the present invention;
Fig. 2 is the front view of grinding fixture in the present invention;
Fig. 3 is the side view of grinding fixture in the present invention;
In figure: 1-abrasive body, 2-lapping stick, 3-spring, 4-regulate screw, 5-taper shank, 6-transit joint, 7-screw C, 8- Screw A, 9-screw B, 10-connection dish, 11-limiting plate, 12-connecting plate, 13-emery wheel, 14-motor, 15-bearing, 16-Timing Belt Wheel shaft, 17-bearing block, 18-Timing Belt, 19-installation portion, 20-nut, 21-packing ring, 22-bearing (ball) cover A, 23-bearing (ball) cover B, 24-soket head cap screw, 25-outer-hexagonal bolt.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is entered Row further describes.
Embodiment 1
As it is shown in figure 1, valve body taper surface grinding tool disclosed in the present embodiment, including abrasive body 1, lapping stick 2 and spring 3, abrasive body 1 is rounding mesa-shaped, and abrasive body 1 outer surface has and the caulking groove of lapping stick 2 adaptation, at least has 2 bottom caulking groove Spring cavity, spring cavity is spaced point-blank, and the orientation of spring cavity is parallel with the bus of abrasive body 1, spring cavity In spring 3 is installed;The outer surface of lapping stick 2 has counter sink, has regulation screw 4, regulation screw 4 afterbody to screw in counter sink In abrasive body 1, spring 3 withstands on lapping stick 2, and the outer surface of lapping stick 2 exceeds the outer surface of abrasive body 1, lapping stick 2 and grinding The bus of body 1 is parallel, and regulation screw 4 is vertical with lapping stick 2, and lapping stick 2 at least 2, lapping stick 2 is the most at equal intervals Arrange.The abradant surface of lapping stick 2 is cylinder.Lapping stick 2 is provided with 4 the most at equal intervals, and spring 3 is helical spring.
According to the size of valve body valve pocket, each lapping stick 2 is furnished with 6-10 spring 3, has 6-10 bottom the most each caulking groove Individual spring cavity.In the present embodiment, each lapping stick 2 is furnished with 8 springs 3, and on each lapping stick 2, interval has 2 counter sinks, heavy The straight line at head bore place is parallel with lapping stick 2.Regulation screw 4 is that interior hexagonal regulates screw.
Valve body taper surface grinding tool, also includes taper shank 5 and connection dish 10, and abrasive body 1 top is with to be connected dish 10 affixed, even Flange 10 is affixed with taper shank 5, and taper shank 5 is coaxial with abrasive body 1, and taper shank 5 is Morse taper shank, and taper shank 5 welds with being connected dish 10.Grind Body 1 is connected with being connected dish 10 by screw A8, and connection dish 10 is connected with transit joint 6 by screw B9.Screw A and screw B is Soket head cap screw.
For convenience of processing, place end face and the bottom surface of the through abrasive body of caulking groove 1 of lapping stick 2, set in the bottom of abrasive body 1 Putting limiting plate 11, limiting plate 11 is affixed with abrasive body 1 by screw C7.Limiting plate 11 is circular, and the diameter of limiting plate 11 is less than The diameter of abrasive body 1 bottom surface, the diameter of limiting plate 11, more than the distance of caulking groove bottom surface to abrasive body 1 axis, is so conveniently installed Lapping stick 2, limiting plate 11 can also give 2 one support forces upwards of lapping stick.
In the present embodiment, the tapering of the abrasive body 1 in grinding tool is consistent with valve body tapering, the cylinder face of design lapping stick 2 Long-pending sum is equal with the lateralarea of abrasive body 1, say, that the cylinder area sum of 4 lapping sticks 2 removes embedding with abrasive body 1 Lateralarea after groove is equal.The material of abrasive body 1 is Cast aluminium alloy gold, and lightweight, lapping stick 2 is ironcasting.Numerical control slightly adds The taper surface of work abrasive body 1, the caulking groove of the embedding deficient lapping stick 2 of Cutter Body Processing with Machining Center, helical spring is arranged on abrasive body 1, After lapping stick 2 is arranged on caulking groove, on Digit Control Machine Tool, after compressing, re-work abrasive body 1 and lapping stick 2 with regulation screw 4 again Male-tapered face, it is ensured that tapering is consistent with valve body taper surface tapering.By the regulation regulation screw 4 pressure to lapping stick 2, adjust spiral shell The rotation spring pretightning force to valve body taper surface by lapping stick 2, and ensure that lapping stick height at least exceeds abrasive body.
Valve body taper surface Ginding process disclosed in the present embodiment, including grinding step, grinding step is to use grinding tool It is ground, abrasive body 1 is arranged on numerical control drilling machine on main shaft, valve body is arranged on numerical control drilling machine workbench, and makes Abrasive body 1 is coaxial with valve body taper surface;Starting numerical control drilling machine, the main shaft of numerical control drilling machine drives lapping stick 2 to enter valve body taper surface Row grinds.
Grinding tool is connected with numerical control drilling machine main shaft is installed by taper shank, rotating piston valve body installation to be ground school Fix after the circle of flat school, adjust the position of the grinding tool taper surface to be ground with valve body, make abrasive body 1 same with valve body taper surface Axle.Numerical control programming, numerical control drilling machine main shaft pumps and rotates, and numerical control drives grinding tool pump and revolve Turning, when grinding tool upwards descends rotary motion, lapping stick and valve body taper surface carry out fricting movement, thus carry out taper surface Grinding, roughness can reach 0.2.
Embodiment 2
The present embodiment is with the difference of embodiment 1: first carried out grinding process, grinding process before being ground operation Being to use grinding fixture to carry out grinding, grinding fixture includes motor and emery wheel, and grinding fixture is arranged on the cutter of numerical control vertical lathe On frame, being arranged on the workbench of numerical control vertical lathe by valve body, workbench band moving valve rotates, and knife rest walking program is up and down reciprocatingly transported Dynamic, motor drives emery wheel that valve body taper surface is carried out grinding, and the movement locus of knife rest is conical helix.
Further, the direction of rotation of emery wheel and the direction of rotation of valve body are identical.
As in figure 2 it is shown, the open a kind of grinding fixture of the present embodiment, grinding fixture includes connecting plate 12, emery wheel 13, motor 14, bearing 15, Timing Belt wheel shaft 16 and bearing block 17, motor 14 and bearing block 17 are arranged on connecting plate 12, and motor 14 passes through Timing Belt 18 is connected with synchronous pulley, and synchronous pulley is arranged on Timing Belt wheel shaft 16;Bearing block 17 has two, Timing Belt position of wheel Between two bearing blocks 17.Timing Belt wheel shaft 16 is arranged on bearing block 17 by bearing 15, and Timing Belt wheel shaft 16 one end is stretched Going out connecting plate 12, emery wheel 13 is coaxially mounted on Timing Belt wheel shaft 16, and emery wheel 13 is positioned at Timing Belt wheel shaft 16 and stretches out connecting plate 12 The end of one end.
Certain, connecting plate 12 is provided with the installation portion 19 for frock being arranged on vertical car.The outer end of emery wheel 13 sets Having nut 20, nut 20 to threaded with Timing Belt wheel shaft 16, emery wheel 13 is arranged on Timing Belt wheel shaft 16 by nut 20.Sand Wheel 13 has two, is provided with packing ring 21 between two emery wheels 13.Timing Belt 18 is plugged into arc tooth synchronous belt for opening, and bearing 15 is deep Ditch ball bearing, motor 14 is three phase electric machine.
Numerical control vertical lathe mill faucet valve taper surface frock also include the bearing (ball) cover A22 that is fixedly mounted on bearing block 17 and Bearing (ball) cover B23, bearing (ball) cover A22 are positioned at the end of Timing Belt wheel shaft 16 other end, and bearing (ball) cover B23 is sleeved on synchronous pulley On axle 16.Bearing (ball) cover A22 and bearing (ball) cover B23 is arranged on bearing block 17 by soket head cap screw 24, and motor 14 is by outward Hex bolts 25 is arranged on connecting plate 12.
Plug valve valve body taper surface programs Vehicle Processing at numerical control vertical lathe, it is ensured that the angle of taper surface, and roughness is permissible Reach 3.2.After taper surface Vehicle Processing completes, workpiece not under, grinding fixture is arranged on numerical control vertical lathe knife rest and fixes, electricity Machine 14 rotates, and is driven emery wheel 13 high-speed rotation on Timing Belt wheel shaft 16 by Timing Belt 18, and numerical control vertical lathe programs, walking program band Movable knife rack pumps, and the movement locus of knife rest is conical helix, and emery wheel 13 carries out grinding to valve body taper surface, coarse Degree can reach 0.8.After numerical control vertical lathe programming Vehicle Processing, lathe need not be changed, directly grinding fixture is arranged on knife rest , save man-hour.
Embodiment 3
The present embodiment is with the difference of embodiment 1 or embodiment 2: after grinding step, valve body taper surface is carried out angle Degree detection, angle detection comprises the following steps:
Step 1. is along the circumferential direction uniformly labelled to few 3 slicker solder bars, slicker solder bar and valve body taper surface on valve body taper surface Bus parallel;
The cock of non-grinding is put in valve pocket by step 2., and acts on certain pressure in cock;
Step 3. takes out cock, measures the thickness of the slicker solder bar flattened.
According to the thickness of the slicker solder bar flattened, step 4. judges whether the tapering of valve body taper surface and cock taper surface is kissed Close.
Further, if the tapering of valve body taper surface and cock taper surface is misfitted and carried out following operation in step 4, use During the cylindrical grinder processing cock conical surface, the angle of fine setting cylindrical grinder bistrique, make the angle of bistrique and the tapering of valve body taper surface Coupling.
To the valve body taper surface angle detection after grinding, valve body taper surface is uniformly pressed 4 identical slicker solder bars, with not The cock having grinding is put into effect certain pressure in valve body taper hole and, in cock, then cock is taken out, survey with outside micrometer Measuring 4 slicker solder bar thickness flattened, whether the tapering calculating valve body taper surface and cock taper surface coincide;If misfitting, Then when the cylindrical grinder processing cock conical surface, the angle of fine setting bistrique, make the angle of bistrique mate with the tapering of valve body taper surface, Thus can guarantee that the cock conical surface after grinding coincide with valve body taper surface.
The inventive method is simple and practical, and the hang-up solving production and processing is verified by production, this technique simple possible, behaviour Facilitating, effect is obvious.
The present invention is directed to the valve body special grinding fixture of taper surface fabrication design, grinding fixture is arranged on numerical control vertical lathe knife rest On, by the driven by motor bistrique on grinding fixture, numerical control programming carries out grinding to taper surface, and roughness can reach 0.8;Again The grinding tool of design specialized, frock couples with numerical control drilling machine, and grinding tool moves reciprocatingly up and down, utilizes spring to lapping stick The pressure applied is applied on faucet valve taper surface, thus is ground taper surface, and roughness can reach 0.2.To grinding Valve body taper surface angle detection after mill, it is ensured that conical surface roughness and tapering meet the requirements.
Certainly, the present invention also can have other numerous embodiments, in the case of without departing substantially from present invention spirit and essence thereof, Those of ordinary skill in the art can make various corresponding change and deformation according to the present invention, but these change accordingly and become Shape all should belong to the protection domain of appended claims of the invention.

Claims (10)

1. a valve body taper surface grinding tool, it is characterised in that: include abrasive body (1), lapping stick (2) and spring (3), described Abrasive body (1) is rounding mesa-shaped, and described abrasive body (1) outer surface has the caulking groove adaptive with lapping stick (2), bottom caulking groove at least Having 2 spring cavitys, spring cavity is spaced point-blank, and the orientation of spring cavity is flat with the bus of abrasive body (1) OK, spring cavity is provided with spring (3);
The outer surface of described lapping stick (2) has counter sink, has regulation screw (4), described regulation screw (4) afterbody in counter sink Screwing in abrasive body (1), spring (3) withstands on lapping stick (2), and the outer surface of lapping stick (2) exceeds the appearance of abrasive body (1) Face, lapping stick (2) is parallel with the bus of abrasive body (1), and regulation screw (4) is vertical with lapping stick (2), and described lapping stick (2) is extremely Rare 2, lapping stick (2) is arranged the most at equal intervals.
Grinding tool the most according to claim 1, it is characterised in that: described lapping stick (2) has 4.
Grinding tool the most according to claim 1 and 2, it is characterised in that: the end face of the through abrasive body of described caulking groove (1) and Bottom surface, the bottom of abrasive body (1) is provided with the limiting plate (11) of circle, and the diameter of limiting plate (11) is less than abrasive body (1) bottom surface Diameter, the diameter of limiting plate (11) is more than caulking groove to the distance of abrasive body (1) axis.
Grinding tool the most according to claim 1 and 2, it is characterised in that: also include taper shank (5) and connection dish (10), institute Stating abrasive body (1) top with to be connected dish (10) affixed, described connection dish (10) is affixed with taper shank (5), taper shank (5) and abrasive body (1) coaxial.
Grinding tool the most according to claim 1 and 2, it is characterised in that: have 6-10 spring cavity bottom each caulking groove.
6. utilizing the method that the grinding tool described in claim any one of claim 1-5 grinds valve body taper surface, it is special Levying and be: include grinding step, described grinding step uses grinding tool to be ground, and abrasive body (1) is arranged on number On control drilling machine on main shaft, being arranged on by valve body on numerical control drilling machine workbench, the main shaft of numerical control drilling machine drives lapping stick (2) to valve body Taper surface is ground.
Method the most according to claim 6, it is characterised in that: first carry out grinding process before described grinding step, described Grinding process is to use grinding fixture to carry out grinding, and described grinding fixture includes motor and emery wheel, is arranged on by grinding fixture On the knife rest of numerical control vertical lathe, valve body is arranged on the workbench of numerical control vertical lathe;Workbench band moving valve rotates, knife rest walking program Pumping, motor drives emery wheel that valve body taper surface is carried out grinding, and the movement locus of knife rest is conical helix.
8. according to the method described in claim 6 or 7, it is characterised in that: after described grinding step, valve body taper surface is carried out Angle detects, and angle detection comprises the following steps:
Step 1. is along the circumferential direction uniformly labelled to few 3 slicker solder bars, slicker solder bar and the mother of valve body taper surface on valve body taper surface Line is parallel;
The cock of non-grinding is put in valve pocket by step 2., and acts on certain pressure in cock;
Step 3. takes out cock, measures the thickness of the slicker solder bar flattened;
According to the thickness of the slicker solder bar flattened, step 4. judges whether valve body taper surface coincide with the tapering of cock taper surface.
Method the most according to claim 8, it is characterised in that: if valve body taper surface and cock taper in described step 4 The tapering in face is misfitted and is carried out following operation, during with the cylindrical grinder processing cock conical surface, and the angle of fine setting cylindrical grinder bistrique, make The angle of bistrique is mated with the tapering of valve body taper surface.
Method the most according to claim 7, it is characterised in that: in described grinding process, the direction of rotation of emery wheel and valve body Direction of rotation identical.
CN201610606365.8A 2016-07-28 2016-07-28 A kind of valve body tapered surface grinding tool and grinding method Active CN106041715B (en)

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