CN105690164B

CN105690164B - Repair the oblique facing head mechanism of boring in a kind of large-scale valve casing sealing surface scene

Info

Publication number: CN105690164B
Application number: CN201610224094.XA
Authority: CN
Inventors: 鲍勇; 李震洪; 权正钟
Original assignee: SHANGHAI HAIYE MECHANICAL AND ELECTRICAL EQUIPMENT Co Ltd
Current assignee: SHANGHAI HAIYE MECHANICAL AND ELECTRICAL EQUIPMENT Co Ltd
Priority date: 2016-04-12
Filing date: 2016-04-12
Publication date: 2017-11-03
Anticipated expiration: 2036-04-12
Also published as: CN105690164A

Abstract

The present invention provides the oblique facing head mechanism that boring is repaiied at a kind of large-scale valve casing sealing surface scene, including lathe bed, main shaft, and Ping Xuanxiu borings mechanism, Ping Xuanxiu borings mechanism includes oblique facing head, it is installed in rotation on the drive gear on oblique facing head, it is movably mounted at the cutter on oblique facing head, and the axially extending power transmission shaft in left and right, power transmission shaft is axially displaceably located in main shaft, the right-hand member of power transmission shaft is provided with along the first axially extending driving flank of tooth of power transmission shaft, cutter is obliquely installed, the handle of a knife of cutter is provided with the second driving flank of tooth extended along tool length direction, it is staggeredly arranged before and after power transmission shaft and cutter, and first driving the flank of tooth and second driving the flank of tooth be meshed with drive gear.After cutter in Ping Xuanxiu borings mechanism is obliquely installed, the one end of cutter provided with cutter head easily can be stretched into inside valve casing from valve casing at the less aditus laryngis of bore, and cutter has larger radial feed length, so that endoporus and valve that line suitable for repairing the various valves of boring.

Description

Repair the oblique facing head mechanism of boring in a kind of large-scale valve casing sealing surface scene

Technical field

The present invention relates to a kind of lathe, the oblique facing head machine of boring is repaiied at more particularly to a kind of large-scale valve casing sealing surface scene Structure.

Background technology

Large size valve generally can be all used in fields such as large thermal power plant, nuclear power plant, ship, national defence, when large size valve is long Phase is required for repairing its scene of progress the operations such as boring valve that line, grinding valve that line, diffusion endoporus curved surface, the valve that line after Also known as valve line, is multiple concentric circles on valve sealing face, plays sealed effect.At present, scene is repaiied boring or ground large-scale The lathe of valve valve casing sealing surface is primarily present following defect：

1st, floral disc need to be used when boring valve that line or diffusion endoporus curved surface are repaiied in scene, floral disc is arranged on a rotatable master On axle, cutter is installed on floral disc；But, the aditus laryngis bore very little of most of valve casings, so as to cause large-sized floral disc can not Stretched at the aditus laryngis of valve casing, if from the floral disc of small size, its radial feed length is again inadequate.

, it is necessary to use numerical control control processing when the 2, repairing boring or spreading the curved surface of valve casing endoporus, but because the aditus laryngis mouthful of valve casing Footpath is small, and the floral disc that correspondence is selected is also smaller, therefore can not install numerical controlled machinery or say that numerical controlled machinery is not placed into.

3rd, the endoporus of institute's boring valve casing is less but very deep at processing, and bosom is general up to 1.8m to 2m, any big boring machine Progress at 1.8m can not all be goed deep into and repair boring processing.

4th, your line of on-site grinding valve or typically abrasive disk is used during endoporus, by abrasive disk installed in a rotatable main shaft On, it is ground by the emery stick on abrasive disk；But, abrasive disk can be sagging because of own wt, therefore the center deviation of abrasive disk Fa Erxian centers to be ground, so as to cause your line of valve mill after grinding partially or the phenomenon such as decentraction, even if by abrasive disk use instead for The aluminium alloy manufacture of lighter weight, it can not avoid above-mentioned phenomenon, so as to have a strong impact on the sealing property of large size valve.

The content of the invention

The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of large-scale valve casing sealing surface scene The oblique facing head mechanism of boring is repaiied, can be stretched into when its repairing boring valve casing valve that line or sealing surface at less valve casing aditus laryngis, And with larger radial feed length.

To achieve the above object, the present invention provides the oblique facing head mechanism that boring is repaiied at a kind of large-scale valve casing sealing surface scene, Including the lathe bed for being fixed on valve casing, the main shaft being installed in rotation in lathe bed and it is removably mounted on main shaft The Ping Xuanxiu borings mechanism or grinding mechanism of right-hand member, the Ping Xuanxiu borings mechanism include oblique facing head, are installed in rotation on and tiltedly put down Drive gear on capstan, the axially extending power transmission shaft of cutter and left and right being movably mounted on oblique facing head, it is described Power transmission shaft is axially displaceably located in main shaft, and the right-hand member of the power transmission shaft is provided with along the first axially extending driving of power transmission shaft The flank of tooth, the cutter is obliquely installed, and the handle of a knife of cutter is provided with the second driving flank of tooth extended along tool length direction, the biography It is staggeredly arranged before and after moving axis and cutter and the first driving flank of tooth and the second driving flank of tooth is meshed with the drive gear, institute The end for stating cutter is provided with cutter head.

Further, in addition to the axially extending round and smooth pillow in left and right, the main shaft is rotatably supported by clutch shaft bearing In round and smooth pillow, the round and smooth pillow is axially displaceably supported in the lathe bed by second bearing.

Preferably, in addition to master form mechanism, the master form mechanism includes the direct copy being arranged on lathe bed and installed in circle Pattern case on ram, the direct copy is provided with the pattern curved surface consistent with the curved surface of boring to be repaired, the pattern case Upper planker, the Yi Jike that be provided with first gear axle that is axially extending up and down and being provided with the outer flank of tooth, can move back and forth along upper slide rail It is in staggered distribution above and below the lower planker moved back and forth along glidepath, the upper planker and lower planker, the upper slide rail tilts extension and set Put and upper slide rail is parallel with cutter, described glidepath or so is extended；Rotatable rolling is installed on the upper planker The pattern curved surface of wheel, the roller and direct copy is leant, and threeth drive parallel with upper slide rail is additionally provided with the upper planker The dynamic flank of tooth, lower planker is provided with the fourth driving flank of tooth parallel with glidepath, the 3rd driving flank of tooth and the 4th sliding tooth Face is meshed with the outer flank of tooth on first gear axle, and the left end of the power transmission shaft is rotatably supported in down by 3rd bearing In planker.

Further, in addition to axially fast delivering gear, this axially fast delivering gear to include left and right axially axially extending Feed screw mandrel, the axial nut set coordinated with axial feed wire rod thread and the axial direction for being installed in axial feed screw mandrel left end Fast feed handwheel, the axial nut set is fixed in a fixed cover, and the fixed cover is fixedly connected with lathe bed, the axial feed Screw mandrel is rotatably supported in ram driving plate by 5th bearing, and the ram driving plate is fixedly connected with round and smooth pillow.

Further, in addition to axially it is careful cutter mechanism, axial direction cutter mechanism of being careful includes worm screw and snail axial up and down Worm gear that bar is meshed and the axial jog handwheel for being installed in worm screw upper end, the worm gear are fixed on the axial feed On screw mandrel.

Preferably, the worm screw is rotatably supported in an eccentric bushing, worm screw and eccentric bushing eccentric setting, the bias One handle is installed with the outer peripheral face of set.

Further, in addition to left and right is axially extending to knife screw mandrel and being installed in knife screw mandrel left end to knife handwheel, It is described that knife screw mandrel is rotatably supported in pattern case by fourth bearing, and knife screw mandrel and lower planker screw thread are coordinated.

Preferably, the angle of inclination of the upper slide rail and cutter is 45 °.

Further, in addition to the gear-box on round and smooth pillow and the motor on gear-box, institute State and the first gear being fixed in driving motor output shaft, the second gear being meshed with first gear are provided with gear-box, is consolidated It is scheduled in second gear and is provided with the second gear axle of the outer flank of tooth and the 3rd tooth being meshed with the outer flank of tooth of second gear axle Wheel, the 3rd gear is fixedly connected with main shaft.

Preferably, the oblique facing head is provided with axially extending the first connecting shaft to the left, the first connecting shaft left end with Main shaft right-hand member is detachably connected；The power transmission shaft includes transmission hollow pipe and is fixed on the driving rack of transmission hollow pipe right-hand member, The flank of tooth on the driving rack is the described first driving flank of tooth.

Further, the grinding mechanism include the second connecting shaft and grinding assembly, the grinding assembly include balance set, Abrasive disk and the emery stick for being fixed on abrasive disk periphery, the second connecting shaft left end and main shaft right-hand member are detachably connected, and second The right-hand member of connecting shaft is connected by the first universal joint with balance set, the right-hand member of the balance set by the second universal joint with Abrasive disk is connected, and is installed with the balance set on the first counterweight balance element, the abrasive disk and is installed with the second counterweight balance Part, the second counterweight balance element makes the center of gravity of abrasive disk be coincided with the rotating fulcrum O2 of the second universal joint, and described first Counterweight balance element makes the center of gravity of grinding assembly be coincided with the rotating fulcrum O1 of the first universal joint.

As described above, oblique facing head mechanism of the present invention, has the advantages that：

After cutter in Ping Xuanxiu borings mechanism is obliquely installed, the one end of cutter provided with cutter head can be easily from valve casing Stretched at the upper less aditus laryngis of bore inside valve casing, pass through on the first driving flank of tooth on power transmission shaft, drive gear and cutter the The mutual cooperation of the two driving flank of tooth can make cutter have larger radial feed length, so that the Ping Xuanxiu borings mechanism can Endoporus and valve that line suitable for repairing the various valves of boring.

Brief description of the drawings

Fig. 1 is the structural representation of the application.

Fig. 2 is the connection diagram of the application medial bed and main shaft.

Fig. 3 is the structural representation of the application Zhong Pingxuanxiu borings mechanism.

Fig. 4 is the structural representation of master form mechanism in the application.

Fig. 5 is the mobile route map of roller in master form mechanism when repairing boring curved surface using master form mechanism.

Fig. 6 is the structural representation of grinding mechanism in the application.

Fig. 7 for Fig. 6 A-A to sectional view.

Fig. 8 is Fig. 6 B-B direction sectional view.

(top view that wherein, Fig. 4 is Fig. 2)

Component label instructions

The worm screw of 1 main shaft 76

The worm gear of 2 lathe bed 77

The axial jog handwheel of 21 cannula portion 78

The eccentric bushing of 22 flange portion 79

The handle of 23 Auxiliary support 791

The 31 oblique gear-boxes of facing head 81

The motor of 311 first connecting shaft 82

The first gear of 32 drive gear 83

The second gear of 33 power transmission shaft 84

The 331 first driving second gear axles of the flank of tooth 85

The 332 transmission gears of hollow pipe 86 the 3rd

The connecting shaft of 333 driving rack 91 second

The balance set of 34 cutter 92

The 341 second driving abrasive disks of the flank of tooth 93

The emery stick of 342 cutter head 94

4 95 first universal joints of round and smooth pillow

The first through hole of 5 direct copy 951

The first support arm of 51 pattern curved surface 952

The second support arm of 61 pattern case 953

The universal joint of 62 first gear axle 96 second

The through hole of slide rail 961 second on 63

The support arm of planker 962 the 3rd on 64

641 the 3rd driving support arms of the flank of tooth 963 the 4th

The counterweight balance element of 65 glidepath 97 first

66 times counterweight balance elements of planker 98 second

661 the 4th driving pins of the flank of tooth 99

The transverse support bar of 67 roller 111

68 pairs of vertical supporting bars of knife handwheel 112

69 pairs of dial gauges of knife screw mandrel 113

The 71 axial clutch shaft bearings of feed screw mandrel 12

72 axial nuts cover 13 second bearings

The fast 3rd bearing of feed handwheel 14 in 73 axial directions

The fourth bearing of 74 fixed cover 15

The 5th bearing of 75 ram driving plate 16

Embodiment

Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book understands other advantages and effect of the present invention easily.

It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to coordinate specification to be taken off The content shown, so that those skilled in the art is understood with reading, is not limited to enforceable qualifications of the invention, therefore Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing the present invention Under the effect that can be generated and the purpose that can reach, it all should still fall and obtain the model that can cover in disclosed technology contents In enclosing.Meanwhile, the term of cited such as " on ", " under " in this specification, "left", "right", " centre " and " one " is also only It is easy to understanding for narration, and is not used to limit enforceable scope of the invention, its relativeness is altered or modified, without essence Change under technology contents, when being also considered as enforceable category of the invention.

The application provides the oblique facing head mechanism that boring is repaiied at a kind of large-scale valve casing sealing surface scene, for repair boring and/ Or the valve that operation such as line and endoporus of grinding large size valve valve casing.As shown in figures 1 and 3, the large-scale valve casing sealing surface scene Repair the oblique facing head mechanism of the boring lathe bed 2 for including being fixed on valve casing, the main shaft 1 that is installed in rotation in lathe bed 2 and The Ping Xuanxiu borings mechanism or grinding mechanism of the right-hand member of main shaft 1 are removably mounted on, wherein, cutter is installed in Ping Xuanxiu borings mechanism 34th, for repairing the valve of boring valve casing your line or endoporus etc., be provided with grinding mechanism emery stick 94, for grind your line of the valve of valve casing or Endoporus etc..In order that the cutter 34 in Ping Xuanxiu borings mechanism can be stretched into from valve casing at the less aditus laryngis of bore, and it can also protect The radial feed amount of cutter 34 is demonstrate,proved, as shown in figures 1 and 3, the Ping Xuanxiu borings mechanism in the application uses following structure：Flat rotation is repaiied Boring mechanism includes oblique facing head 31, the drive gear 32 being installed in rotation on oblique facing head 31, is movably mounted at tiltedly The axially extending power transmission shaft 33 of cutter 34 and left and right on facing head 31, the power transmission shaft 33 is axially displaceably located in Can be rotated with main shaft 1 in main shaft 1 and synchronously, the right-hand member of the power transmission shaft 33 be provided with along power transmission shaft 33 it is axially extending first The flank of tooth 331 is driven, the cutter 34 is obliquely installed, the handle of a knife of cutter 34 is provided with second extended along the length direction of cutter 34 and driven The dynamic flank of tooth 341, the power transmission shaft 33 and cutter 34 are staggeredly arranged and the first driving flank of tooth axially back and forth along drive gear 32 331 and second drive the flank of tooth 341 to be meshed with the drive gear 32, and the end of the cutter 34 is provided with cutter head 342.

When boring is repaiied at the scene by the oblique facing head mechanism for being provided with above-mentioned Ping Xuanxiu borings mechanism, cutter 34 is obliquely installed so that Angle between cutter 34 and the axis of main shaft 1 (or the axis of power transmission shaft 33) is an acute angle, therefore cutter 34 is provided with the right side of cutter head 342 End easily can be stretched into inside valve casing from valve casing at the less aditus laryngis of bore, and the left end of cutter 34 can be placed in outside aditus laryngis. When repairing boring, main shaft 1 drives oblique facing head 31 to rotate together, therefore cutter 34, drive gear 32 tiltedly on facing head 31 is rotated together, And the first driving flank of tooth 331 of drive gear 32 and the right-hand member of power transmission shaft 33 is meshed, therefore power transmission shaft 33 is with 1 turn of main shaft It is dynamic, that is to say, that main shaft 1, power transmission shaft 33, oblique facing head 31, the cutter 34 and drive gear 32 installed on oblique facing head 31 are The relation of synchronous axial system.Meanwhile, power transmission shaft 33 is moved axially along main shaft 1, the first driving flank of tooth 331 and driving on power transmission shaft 33 Gear 32 is meshed, therefore drive gear 32 is rotated；And drive gear 32 drives the phase of the flank of tooth 341 with second on cutter 34 simultaneously Engagement, therefore while the rotation of drive gear 32, length direction (i.e. the incline direction of cutter 34) of the cutter 34 along itself is caused again It is mobile, therefore cutter 34 radially has larger radial feed length in main shaft 1, reaches that the special of the big stroke of small faceplate will Ask, so that the Ping Xuanxiu borings mechanism can be applied to repair the endoporus and valve that line of the various valves of boring.Preferably, it is described tiltedly flat The oblique orbit parallel with cutter 34 is offered on capstan 31, cutter 34 is provided with the sliding block being located in oblique orbit, passes through ramp The mutual cooperation in road and sliding block can ensure the stability that the bearing of trend of oblique orbit moves back and forth along along oblique facing head 31 of cutter 34.

Preferably, the Detachable connection structure of the oblique facing head 31 and main shaft 1 is：As shown in figure 3, the oblique facing head 31 insert the connecting hole of the right-hand member of main shaft 1 provided with the first axially extending to the left connecting shaft 311, the left end of the first connecting shaft 311 In and the inner peripheral surface of outer peripheral face and the main shaft 1 of the first connecting shaft 311 is cone match, preferably Morse's taper 5.When by When one connecting shaft 311 is knocked in the connecting hole of main shaft 1 to the left, the internal conical surface of the first connecting shaft 311 and the outer conical surface of main shaft 1 Sting tight, so that main shaft 1 be connected with the first connecting shaft 311；First connecting shaft 311 is struck to the right from the connecting hole of main shaft 1 When going out, you can the connecting shaft 311 of main shaft 1 and first is separated.In addition, as shown in figure 3, the power transmission shaft 33 is hollow including being driven The flank of tooth on pipe 332 and the driving rack 333 for being located at the transmission right-hand member of hollow pipe 332, the driving rack 333 drives for described first The dynamic flank of tooth 331, transmission hollow pipe 332 is mutually fixed with driving rack 333 by screw, and driving rack 333 is axially displaceably worn It is located in the first connecting shaft 311, the major part of the power transmission shaft 33 is made up of transmission hollow pipe 332, therefore the matter of power transmission shaft 33 Amount is light, is easy to power transmission shaft 33 to thrust.

Further, as shown in Figures 2 and 3, in addition to the axially extending round and smooth pillow 4 in left and right, the main shaft 1 passes through first Bearing 12 is rotatably supported in round and smooth pillow 4, and the round and smooth pillow 4 is axially displaceably supported on described by second bearing 13 In lathe bed 2；When round and smooth pillow 4 is moved axially relative to lathe bed 2, round and smooth pillow 4 drives main shaft 1 to move axially together, therefore the band of main shaft 1 Dong Pingxuanxiu borings mechanism is moved axially together, realizes the axial feed of cutter 34.In addition, as depicted in figs. 1 and 2, the lathe bed 2 Including cannula portion 21 and the flange portion 22 for being located at the left end of cannula portion 21, the flange portion 22 is fixed on valve casing and in 1/2 disk Shape, consequently facilitating operator prevents multiple Auxiliary supports 23 between the cannula portion 21 and valve casing of lathe bed 2.The second bearing 13 are located between cannula portion 21 and round and smooth pillow 4, and second bearing 13 has multiple, and left and right is arranged side by side；Positioned at the right-hand member of cannula portion 21 The outer peripheral face of the second bearing 13 at place and the relation that the inner peripheral surface of cannula portion 21 is cone match, therefore by the second bearing 13 to the left When knocking in, the radial clearance between the cannula portion 21 of lathe bed 2 and round and smooth pillow 4 can be reduced, and then effectively eliminate vibrations, reduce tiltedly Noise when facing head mechanism is operated.Multiple second bearings 13 are made of copper, and can increase anti-wear performance, and then extend second The service life of the service life of bearing 13 and whole tiltedly facing head mechanism.

It is the axial feed that drives cutter 34 to drive the round and smooth axial movement of pillow 4 or says, there is provided axle in the application To fast delivering gear and cutter mechanism of being axially careful.Specifically, as shown in Figure 2 and Figure 4, axially fast delivering gear includes left and right axially Axially extending feed screw mandrel 71, the axial nut coordinated with the axial screw thread of feed screw mandrel 71 cover 72 and are installed in axially to walk The axially fast feed handwheel 73 of the left end of knife screw mandrel 71, the axial nut set 72 is fixed in a fixed cover 74, the fixed cover 74 It is fixedly connected with lathe bed 2, the axial feed screw mandrel 71 is rotatably supported in ram driving plate 75 by 5th bearing 16, The ram driving plate 75 is fixedly connected with round and smooth pillow 4.Cutter mechanism of being axially careful include worm screw 76 axial up and down, with the phase of worm screw 76 The worm gear 77 of engagement and the axial jog handwheel 78 for being installed in the upper end of worm screw 76, the worm gear 77 are fixed on the axial direction On feed screw mandrel 71.Meanwhile, the worm screw 76 is rotatably supported in an eccentric bushing 79, and worm screw 76 and the bias of eccentric bushing 79 are set Put, one handle 791 is installed with the outer peripheral face of the eccentric bushing 79.

Axially during fast feed, the handle 791 on rotating eccentric sleeve 79, then eccentric bushing 79 drive worm screw 76 to rotate together, make Worm screw 76 and worm gear 77 are separated；Knife handwheel 73 of axially hurrying up is rotated, axially fast feed handwheel 73 drives axial feed screw mandrel 71 Synchronously rotate, axial feed screw mandrel 71 covers the cooperation of 72 screw threads with axial nut, constitutes feed screw nut pair, and axial nut set 72 It is again fixed, therefore moved axially again relative to axial nut set 72 while axial 71 rotation of feed screw mandrel, therefore, axially walk Knife screw mandrel 71 drives ram driving plate 75 and round and smooth pillow 4 synchronously axially dynamic, realizes axially fast feed.During axial jog, turn The handle 791 on eccentric bushing 79 is moved, then eccentric bushing 79 drives worm screw 76 to rotate together, worm screw 76 and worm gear 77 is meshed；Turn Moving axis drives worm screw 76 synchronously to rotate to jog handwheel 78, axial jog handwheel 78, and the driving worm gear 77 of worm screw 76 is rotated, Worm gear 77 drives axial feed screw mandrel 71 synchronously to rotate, and realizes axial jog.In the present embodiment, the fast feed handwheel 73 in axial direction Rotate one to enclose, the axial internal clearance of axial feed screw mandrel 71 is 10mm；Axial jog handwheel 78 rotates one and enclosed, axial feed silk The axial internal clearance of bar 71 is 0.2mm.

Further, when boring is repaiied at scene, the boring face of repairing of some valve casing endoporus is curved surface, and in Ping Xuanxiu borings mechanism is difficult peace Cnc mechanism is filled, therefore, master form mechanism is devised in the application, can be repaiied by the master form mechanism and bore various curved surfaces.Specifically, As shown in Figure 2 and Figure 4, the master form mechanism includes the direct copy 5 being arranged on lathe bed 2 and leaning on round and smooth pillow 4 Moulding box 61, the direct copy 5 is provided with the pattern curved surface 51 consistent with the curved surface of boring to be repaired, the pattern case 61 and installed Have axially extending up and down and first gear axle 62 provided with the outer flank of tooth, the upper planker 64 that can move back and forth along upper slide rail 63 and Above and below the lower planker 66 that can move back and forth along glidepath 65, the axial direction of the upper planker 64 and lower planker 66 along first gear axle 62 It is in staggered distribution, the upper inclination of slide rail 63 is extended and upper slide rail 63 is parallel with cutter 34, and the glidepath 65 or so prolongs Stretch setting；Rotatable roller 67 is installed, the pattern curved surface 51 of the roller 67 and direct copy 5 offsets on the upper planker 64 Lean on, the threeth driving flank of tooth 641 parallel with upper slide rail 63 is additionally provided with the upper planker 64, lower planker 66 is provided with and downslide The 4th parallel driving flank of tooth 661 of rail 65, the 3rd driving flank of tooth 641 and the 4th drives the flank of tooth 661 and first gear The outer flank of tooth on axle 62 is meshed, and the left end of the power transmission shaft 33 is rotatably supported in lower planker 66 by 3rd bearing 14 In.

Preferably, the upper end of the first gear axle 62 is provided with hexagon-head, and spanner pulls the hexagon-head so that first Gear shaft 62 can not be rotated optionally, can only being rotated by upper planker 64 or lower planker 66.Repair the song of boring valve casing endoporus During face, round and smooth pillow 4 drives the axial feed motion together of pattern case 61, therefore first gear axle 62, upper planker 64 in pattern case 61, The parts such as lower planker 66, upper slide rail 63, glidepath 65 and roller 67 do axial feed motion with round and smooth pillow 4 together, machinery Pattern 5 is arranged on lathe bed 2, therefore direct copy 5 is not moved, therefore, when pattern case 61 is with 4 axial feed motion of round and smooth pillow, is leaned on Roller 67 in moulding box 61 can lean with the pattern curved surface 51 on direct copy 5.Round and smooth pillow 4 continues axial feed motion, therefore Roller 67 can be moved along the track of pattern curved surface 51, as shown in figure 5, therefore roller 67 drives upper planker 64 together along upper slide rail 63 Bearing of trend movement, upper planker 64 is meshed with first gear axle 62, therefore upper planker 64 also drives first while moving Gear shaft 62 is rotated；First gear axle 62 is meshed with lower planker 66 simultaneously again, therefore first gear axle 62 is rotated and driven again simultaneously Bearing of trend of the lower planker 66 along glidepath 65 is moved, that is, descends planker 66 to move left and right, therefore, and lower planker 66 drives power transmission shaft 33 Move left and right together, so that the movement locus of cutter 34 is consistent with the movement locus of roller 67, finally cause cutter 34 Movement locus it is consistent with the pattern curved surface 51 on direct copy 5, and pattern curved surface 51 is consistent with the curved surface of boring to be repaired , therefore cutter 34 can be repaiied and bore satisfactory endoporus curved surface.

Further, as shown in Figure 2 and Figure 4, in addition to left and right it is axially extending to knife screw mandrel 69 and be installed in knife silk The left end of bar 69 to knife handwheel 68, it is described that knife screw mandrel 69 is rotatably supported in pattern case 61 by fourth bearing 15, and Knife screw mandrel 69 and the lower screw thread of planker 66 are coordinated.Rotate to knife handwheel 68, you can rotate to knife screw mandrel 69, to knife screw mandrel 69 with Planker 66 constitute feed screw nut pair, therefore while rotation to knife screw mandrel 69 under planker 66 can along to knife screw mandrel 69 axially left and right shifting Dynamic, lower planker 66 drives power transmission shaft 33 to move axially simultaneously, so as to realize the aim at tool operation of cutter 34.In addition, above-mentioned profiling machine Structure along the pattern curved surface 51 of direct copy 5 mainly by roller 67 when moving, and roller 67 drives upper planker 64 along upper slide rail 63 synchronously retreat or advance, if the angle of inclination of upper slide rail 63 is excessive, easily occur angle of friction self-locking, it is impossible to dragged in driving Plate 64 is moved along upper slide rail 63；Therefore, in the present embodiment, the angle of inclination of upper slide rail 63 and cutter 34 is set to 30 ° -60 °, excellent Elect 45 ° as.

Further, it is for the rotating mechanism of drive shaft 1：As shown in Fig. 2 also including the tooth being arranged on round and smooth pillow 4 It is defeated provided with motor 82 is fixed in roller box 81 and the motor 82 on gear-box 81, the gear-box 81 First gear 83 on shaft, the second gear 84 being meshed with first gear 83, it is fixed in second gear 84 and provided with outer The second gear axle 85 of the flank of tooth and the 3rd gear 86 being meshed with the outer flank of tooth of second gear axle 85, the 3rd gear 86 are fixed on the left end of main shaft 1 and are coaxially set with main shaft 1.Motor 82 drives first gear 83 to rotate, first gear 83 driving second gears 84 and second gear axle 85 are rotated, and the outer flank of tooth on second gear axle 85 is meshed with the 3rd gear 86, Therefore the 3rd gear 86 is also rotated, so as to drive main shaft 1 to rotate together.

Further, as shown in fig. 6, the grinding mechanism includes the second connecting shaft 91 and grinding assembly, the grinding group Part includes balance set 92, abrasive disk 93 and is fixed on the emery stick 94 of the periphery of abrasive disk 93, the left end of the second connecting shaft 91 and The right-hand member of main shaft 1 is detachably connected, and the right-hand member of the second connecting shaft 91 is connected by the first universal joint 95 with balance set 92 so that Second connecting shaft 91 and balance set 92 can all be rotated around the rotating fulcrum O1 of the first universal joint 95；The right-hand member of the balance set 92 It is connected by the second universal joint 96 with abrasive disk 93 so that balance set 92 and abrasive disk 93 all can be around the second universal joints 96 Rotating fulcrum O2 rotate；In order to eliminate the phenomenon that abrasive disk 93 is sagging because of own wt, as shown in fig. 6, the balance set 92 left end is installed with the first counterweight balance element 97, and the left end of the abrasive disk 93 is installed with the second counterweight balance element 98.

The mounting means of above-mentioned self-balancing universal joint grinding mechanism is as follows：First, abrasive disk 93 is led to balance set 92 Cross the second universal joint 96 to be connected, the second counterweight balance element 98 is fixedly mounted on abrasive disk 93, makes the center of gravity of abrasive disk 93 Coincided with the rotating fulcrum O2 of the second universal joint 96；Then, by by be installed with the second counterweight balance element 98 abrasive disk 93, The grinding assembly and the right-hand member of the second connecting shaft 91 that emery stick 94, the second universal joint 96 and balance set 92 are constituted pass through first Universal joint 95 is connected, and the first counterweight balance element 97 is fixedly mounted in the right-hand member of balance set 92, make the center of gravity of grinding assembly with The rotating fulcrum O1 of first universal joint 95 coincides.Therefore, in process of lapping, the rotating fulcrum O1 of the first universal joint 95 It is always the state of self-balancing with the rotating fulcrum O2 of the second universal joint 96, and then eliminates the self-balancing universal joint grinder Influence of the weight of the weight of each part, particularly abrasive disk 93 to your line of grinding valve in structure, so as to ensure that your line is ground to valve Quality, your line of valve is not ground partially, will not also grind decentraction, finally ensure that the sealing property of large size valve.

Further, as shown in fig. 6, the balance set 92 manufactures into a single integrated structure with the first counterweight balance element 97, grinding The counterweight balance element 98 of disk 93 and second also manufactures into a single integrated structure, meanwhile, in order to realize balance set 92 around the first Universal connector First 95 and second universal joint 96 rotate, the universal joint 96 of the first universal joint 95 and second is preferred to use square box knot Structure, the inwall at least plane that the balance set 92 is in contact with the first universal joint 95, the second universal joint 96, is used again afterwards Pin 99 is articulated and connected.Specifically, as shown in Figure 6 and Figure 7, balance set 92, the first universal joint 95 and the second connecting shaft 91 attachment structure is：First universal joint 95 is square ring-type, therefore it has first through hole 951, the two of setting symmetrical above and below Individual first support arm 952 and front and rear symmetrically arranged two second support arms 953, the right-hand member of second connecting shaft 91 are provided with two The first connection otic placode 911 being oppositely arranged before and after individual, the first support arm 952 and pin 99 of the balance set 92 by extension up and down It is hinged, second support arm 953 is hinged with the first connection otic placode 911 by the pin 99 of front and rear extension.As shown in Figure 6 and Figure 8, The attachment structure of balance set 92, the second universal joint 96 and abrasive disk 93 is：Second universal joint 96 is square ring-type, therefore it has There are the second through hole 961, two the 3rd support arms 962 of setting symmetrical above and below and front and rear symmetrically arranged two the 4th support arms 963, be installed with the second connection otic placode 931 being oppositely arranged before and after two on the abrasive disk 93, the 3rd support arm 962 with it is flat Weighing apparatus set 92 is hinged by the pin 99 of extension up and down, the pin that the 4th support arm 963 and the second connection otic placode 931 pass through front and rear extension Son 99 is hinged, and the pin 99 plays a part of connecting shaft and rotating shaft.Preferably, first universal joint 95 and the 20000th The inside of balance set 92 is respectively positioned on to joint 96 and is in contact with the inwall of balance set 92.

Preferably, the main shaft 1 and the second connecting shaft 91 are that Detachable connection structure is：As shown in fig. 6, the second connecting shaft In the connecting hole of the 91 left end insertion right-hand member of main shaft 1 and the inner peripheral surface of the outer peripheral face and main shaft 1 of the second connecting shaft 91 is matched somebody with somebody for the conical surface Close, it is preferred to use Morse's taper 6.Therefore, the second connecting shaft 91 is knocked in the connecting hole of main shaft 1 to the left, the second connecting shaft 91 male cone (strobilus masculinus) is stung tightly with the inner conical surface of the right-hand member of main shaft 1, and main shaft 1 can be connected with the second connecting shaft 91；By the second connecting shaft 91 knock out to the right, you can the second connecting shaft 91 and main shaft 1 are separated.

Further, in addition to center distance regulation component, as shown in fig. 6, the center distance regulation component includes left and right extends Transverse support bar 111, the vertical supporting bar 112 that is installed in the right-hand member of transverse support bar 111 and extends up and down and be arranged on The dial gauge 113 of the end of vertical supporting bar 112, the dial gauge 113 is used for the center for measuring your line of valve to be ground, the transverse direction The left end of support bar 111 sequentially passes through the second through hole 961 of the second universal joint 96 and the first through hole of the first universal joint 95 It is detachably connected after 951, with the right-hand member of second connecting shaft 91.Before grinding valve that line, first installation center is away from adjustment group Part, the rotating fulcrum O2 of the second universal joint 96 position is adjusted according to the reading of dial gauge 113, makes the rotation of two universal joints Your line is concentric with valve to be ground by fulcrum O2, and afterwards by center distance regulation assembly removal, main shaft 1 drives 91 turns of the second connecting shaft Dynamic, the second connecting shaft 91 drives balance set 92, abrasive disk 93 and emery stick 94 to rotate together, and then grinding valve that line.

Preferably, the Detachable connection structure of the transverse support bar 111 and the second connecting shaft 91 is：As shown in fig. 6, the The right-hand member of two connecting shafts 91 also is provided with connecting hole, the left end of transverse support bar 111 insert in the connecting hole of the second connecting shaft 91 and The connecting shaft 91 of transverse support bar 111 and second is cone match, it is preferred to use Morse's taper 2 or Morse's taper 3.Therefore, In the connecting hole that transverse support bar 111 is knocked in the second connecting shaft 91 to the left, the male cone (strobilus masculinus) of transverse support bar 111 is connected with second The inner conical surface of the right-hand member of axle 91 is stung tightly, you can transverse support bar 111 is connected with the second connecting shaft 91；By transverse support bar 111 Knock out to the right, you can release the connection of the connecting shaft 91 of transverse support bar 111 and second.

The operation principle of above-mentioned oblique facing head mechanism is：

When repairing boring plane, Ping Xuanxiu borings mechanism is installed in the right-hand member of main shaft 1, direct copy 5 removed, axial feed, i.e., The plane for boring valve casing endoporus can be repaiied.

When repairing boring curved surface, Ping Xuanxiu borings mechanism is installed in the right-hand member of main shaft 1, makes corresponding according to the requirement of boring curved surface to be repaired Direct copy 5, by direct copy 5 be arranged on lathe bed 2 on, axial feed, you can repair the curved surface for boring valve casing endoporus.

During grinding, grinding mechanism is installed in the right-hand member of main shaft 1, valve casing valve that line or endoporus are ground by emery stick 94.

In summary, the oblique facing head mechanism of the application design can repair boring plane and a variety of curved surfaces, also meet little Hua The particular/special requirement of the big stroke of disk, so as to repair boring and the endoporus for grinding various valves and valve that line suitable for scene.So, the present invention Effectively overcome various shortcoming of the prior art and have high industrial utilization.

The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as Into all equivalent modifications or change, should by the present invention claim be covered.

Claims

1. the oblique facing head mechanism of boring, including the lathe bed for being fixed on valve casing are repaiied in a kind of large-scale valve casing sealing surface scene (2) main shaft (1) that, is installed in rotation in lathe bed (2) and it is removably mounted on the flat rotation of main shaft (1) right-hand member and repaiies boring Mechanism or grinding mechanism, it is characterised in that：The Ping Xuanxiu borings mechanism includes oblique facing head (31), is installed in rotation on and tiltedly puts down Drive gear (32) on capstan (31), the cutter (34) being movably mounted on oblique facing head (31) and left and right axial direction The power transmission shaft (33) of extension, the power transmission shaft (33) is axially displaceably located in main shaft (1), the right side of the power transmission shaft (33) End is provided with along the first axially extending driving flank of tooth (331) of power transmission shaft (33), and the cutter (34) is obliquely installed, cutter (34) Handle of a knife is provided with the second driving flank of tooth (341) extended along cutter (34) length direction, the power transmission shaft (33) and cutter (34) It is front and rear be staggeredly arranged and first driving the flank of tooth (331) and second drive the flank of tooth (341) mutually nibbled with the drive gear (32) Close, the end of the cutter (34) is provided with cutter head (342)；Also include the axially extending round and smooth pillow (4) in left and right, the main shaft (1) it is rotatably supported in by clutch shaft bearing (12) in round and smooth pillow (4), the round and smooth pillow (4) can by second bearing (13) Axially movably it is supported in the lathe bed (2)；Also include master form mechanism, the master form mechanism includes being arranged on lathe bed (2) Direct copy (5) and the pattern case (61) on round and smooth pillow (4), the direct copy (5) is provided with the song with boring to be repaired First tooth axially extending up and down and provided with the outer flank of tooth is installed in the consistent pattern curved surface (51) in face, the pattern case (61) Wheel shaft (62), the upper planker (64) that can move back and forth along upper slide rail (63) and drag under can moving back and forth along glidepath (65) Plate (66), the upper planker (64) and lower planker (66) are in staggered distribution up and down, the upper slide rail (63) tilt be extended and on Slide rail (63) is parallel with cutter (34), and glidepath (65) left and right is extended；Being provided with the upper planker (64) can The roller (67) of rotation, the pattern curved surface (51) of the roller (67) and direct copy (5) leans, on the upper planker (64) also Provided with the threeth driving flank of tooth (641) parallel with upper slide rail (63), lower planker (66) is provided with parallel with glidepath (65) The 4th driving the flank of tooth (661), it is described 3rd driving the flank of tooth (641) and the 4th drive the flank of tooth (661) with first gear axle (62) the outer flank of tooth on is meshed, and the left end of the power transmission shaft (33) is rotatably supported in lower planker by 3rd bearing (14) (66) in.

2. oblique facing head mechanism according to claim 1, it is characterised in that：Also include axially fast delivering gear, the axial direction Fast delivering gear includes left and right axially axially extending feed screw mandrel (71), the axial direction coordinated with axial feed screw mandrel (71) screw thread Nut sleeve (72) and the axially fast feed handwheel (73) for being installed in axial feed screw mandrel (71) left end, the axial nut set (72) it is fixed in a fixed cover (74), the fixed cover (74) is fixedly connected with lathe bed (2), the axial feed screw mandrel (71) is led to Cross 5th bearing (16) to be rotatably supported in ram driving plate (75), the ram driving plate (75) and round and smooth pillow (4) are fixed Connection.

3. oblique facing head mechanism according to claim 2, it is characterised in that：Also include axially be careful cutter mechanism, the axial direction Cutter mechanism of being careful includes worm screw (76) axial up and down, the worm gear (77) being meshed with worm screw (76) and is installed in worm screw (76) the axial jog handwheel (78) of upper end, the worm gear (77) is fixed on the axial feed screw mandrel (71).

4. oblique facing head mechanism according to claim 3, it is characterised in that：The worm screw (76) is rotatably supported in one In eccentric bushing (79), worm screw (76) and eccentric bushing (79) eccentric setting are installed with the outer peripheral face of the eccentric bushing (79) on the other hand Handle (791).

5. oblique facing head mechanism according to claim 1, it is characterised in that：Also include left and right axially extending to knife screw mandrel (69) and be installed in knife screw mandrel (69) left end to knife handwheel (68), it is described can by fourth bearing (15) to knife screw mandrel (69) It is rotatably supported in pattern case (61), and knife screw mandrel (69) and lower planker (66) screw thread is coordinated.

6. oblique facing head mechanism according to claim 1, it is characterised in that：The upper slide rail (63) and cutter (34) are inclined Rake angle is 45 °.

7. oblique facing head mechanism according to claim 1, it is characterised in that：Also include the tooth being arranged on round and smooth pillow (4) It is provided with roller box (81) and the motor (82) on gear-box (81), the gear-box (81) and is fixed on driving First gear (83) on motor (82) output shaft, the second gear (84) being meshed with first gear (83), it is fixed on second In gear (84) and the second gear axle (85) provided with the outer flank of tooth and be meshed with the outer flank of tooth of second gear axle (85) the Three gears (86), the 3rd gear (86) is fixedly connected with main shaft (1).

8. oblique facing head mechanism according to claim 1, it is characterised in that：The oblique facing head (31) is provided with to left axle To the first connecting shaft (311) of extension, the first connecting shaft (311) left end is detachably connected with main shaft (1) right-hand member；The transmission Axle (33) includes transmission hollow pipe (332) and is fixed on the driving rack (333) of transmission hollow pipe (332) right-hand member, the driving cog The flank of tooth on bar (333) is the described first driving flank of tooth (331).

9. oblique facing head mechanism according to claim 1, it is characterised in that：The grinding mechanism includes the second connecting shaft (91) and grinding assembly, the grinding assembly includes balance set (92), abrasive disk (93) and is fixed on abrasive disk (93) periphery Emery stick (94), the second connecting shaft (91) left end and main shaft (1) right-hand member be detachably connected, the right-hand member of the second connecting shaft (91) It is connected by the first universal joint (95) with balance set (92), the right-hand member of the balance set (92) passes through the second universal joint (96) it is connected with abrasive disk (93), the first counterweight balance element (97), the abrasive disk is installed with the balance set (92) (93) the second counterweight balance element (98) is installed with, the second counterweight balance element (98) makes the center of gravity and second of abrasive disk (93) The rotating fulcrum O2 of universal joint (96) coincides, and the first counterweight balance element (97) makes the center of gravity and the 10000th of grinding assembly Coincided to the rotating fulcrum O1 of joint (95).