CN209223309U - A kind of primary machining lathe of crucible - Google Patents

Abstract

The utility model relates to a kind of primary machining lathes of crucible, including fuselage, the first feed arrangement set gradually on fuselage, clamping workpiece device, second feed arrangement, first feed arrangement, second feed arrangement front end face is in state positioned opposite, first feed arrangement, second feed arrangement is respectively equipped with knife bar, knife bar rotating device, horizontal feed device, knife bar support sleeve, knife bar axial adjusting device, tool holder is installed on knife bar, clamping workpiece device includes chuck and chuck driving device, chuck driving device includes third spindle box, third main shaft, third main axis transmission system, connecting rod, ringlike round plate and at least two cylinder apparatus, the clamping part of cylinder apparatus uniformly clamps ringlike round plate end, make to be fixed on the soft pawl on chuck body under the movement of cylinder piston rod to clamping workpiece, first feed arrangement, Second feed arrangement solves the problems, such as that traditional machine tool clamping is difficult, needs multistage manufacturing processes respectively from workpiece front and rear ends to work pieces process.

Description

A kind of primary machining lathe of crucible

Technical field

The utility model relates to a kind of lathe, in particular to the primary machining lathe of a kind of crucible.

Background technique

Graphite crucible is the Key Mold of steel alloy, non ferrous metal and their alloy melting, and graphite crucible manufacturing industry is more at present The methods that number is machined out again using the barrel-shaped graphite crucible base of isostatic pressing, to being needed in graphite crucible base machining process Crucible inner hole port, inner wall, bottom wall, bottom outer wall are processed, but since most of graphite crucible sizes are larger, tradition folder It is small to have clamping power, is unable to clamping or clamping is unstable, and need substep to process when traditional machine tool processing, it is not only time-consuming, and due to Graphite smoother, multiple clamping, size are easy deviation, are also easy to increase landing, damage probability because process is more, increase Crucible manufacturing cost, the country, which also has, carries out special machining apparatus research for graphite crucible, but it is most be also need it is more Secondary clamping, not only clamping power is small, and clamping is unstable, and process is more, and the processing same period is long, while also influencing machining accuracy, simultaneously Processing efficiency is also reduced, graphite crucible manufacturing cost is increased.

Utility model content

Purpose of the utility model is to solve crucibles to need multiple clamping, heavy workload, clamping in process Unstable, the problems such as machining accuracy is low, low efficiency, provides a kind of crucible for being able to achieve automatic operation once machining machine Bed.

To achieve the goals above, the technical solution adopted in the utility model is as follows:

A kind of crucible once machining lathe, including fuselage, the fuselage is equipped with the first feed arrangement, workpiece fills Clamp device and the second feed arrangement, the clamping workpiece device are set between the first feed arrangement and the second feed arrangement, institute The first feed arrangement, the second feed arrangement front end face are stated in state positioned opposite；First feed arrangement be equipped with the first knife bar, First knife bar rotating device, first level feed arrangement, the second feed arrangement be equipped with the second knife bar, the second knife bar rotating device, Second horizontal feed device, the first knife bar rotating device include the first main axis transmission system, the first spindle box, are installed on the The first main shaft rotated under the drive of the first main axis transmission system on one spindle box, the second knife bar rotating device include second Main axis transmission system, the second spindle box, the second main shaft, first knife bar, the second knife bar be coaxially connected to respectively the first main shaft, It is respectively in rotate to drive rotation status with the first main shaft, the second main shaft, on first knife bar, the second knife bar in second main shaft One or more tool holder is respectively set；The clamping workpiece device includes chuck and chuck driving device, institute Stating chuck includes chuck body, wedge mount, drag link sleeve and base jaw and soft pawl, and the chuck driving device includes being fixed on fuselage Third spindle box, be threaded on third spindle box and cylindrical third main shaft, band on chuck body are fixed in front end The third main axis transmission system of dynamic third main shaft rotation is coaxially built in third main shaft in the state of being slidably matched with third main shaft Synchronous rotary and front end are fixed on rear end in drag link sleeve and stretch out the circular tube shaped connecting rod in third rear-end of spindle face, are coaxially fixed on Connecting rod tail end and plate face and the pitman shaft axis hole after third spindle box to the ringlike round plate of central axis and at least two The cylinder apparatus for being circumferentially uniformly distributed and being fixed on third spindle box trailing flank, each cylinder apparatus include by crossbeam and hanging down Directly be fixed on crossbeam both ends and center be respectively equipped with the first end plate of the axially extending bore of longitudinal center line on the same line with Second end board group at support base, be fixed on the oil cylinder main body of plate face on the outside of support base first end plate, stretch out oil cylinder main body and according to Secondary be threaded onto the axially extending bore of first end plate and the second end plate can be reciprocating along two through hole longitudinal center line and be pierced by the The tail end of two end plate through-holes is equipped with the cylinder piston rod of limiting device, and be set to support base first end plate and the second end plate it Between by the fixed frame that is fixed on cylinder piston rod and be set to fixed frame end and and crossbeam relative to cylinder piston rod Two rolling members every of the clamping part that direction is formed in two rolling members of opposite direction, each clamping part has edge and institute The radial pressure-bearing surface of the vertical axis rotation of corresponding cylinder piston rod and along axisymmetry, the center of two rolling members be located at On the parallel same straight line of cylinder piston rod, the thickness of distance and ringlike round plate between two rolling members matches, the third The center of circle is in axis hole center after using third spindle box on spindle box trailing flank and radius is greater than the same of third main shaft exradius Equal with cylinder apparatus quantity as the center of circle, quantity using the point on circumference and arbitrary neighborhood two center of circle spacing are offered on circumference Equal oil cylinder disposes through-hole, and the oil cylinder main body of each cylinder apparatus disposes through-hole to be placed in third spindle box by oil cylinder Interior, plate face is fixedly connected with third main shaft box back lateral surface on the outside of the support base first end plate of each cylinder apparatus, described Cylinder piston rod in each cylinder apparatus support base is parallel with third main shaft and is located on the outside of third spindle box, each oil The longitudinal center line of two rolling members of the clamping part of cylinder assembly be located across corresponding cylinder piston rod longitudinal center line with In the same plane of third main shaft longitudinal center line and two rolling members are arranged and are distributed in towards ringlike round plate longitudinal center line Ringlike round plate two sides, two rolling members of each clamping part are in clamping ringlike round plate two sides plate face end state, the annular Plectane is under the two rolling members clamping of each clamping part in the reciprocating motion of each cylinder piston rod and along third main shaft axial centre Line moves back and forth state；The clamping workpiece device is fixed on fuselage through third spindle box, and first feed arrangement is through One horizontal feed device is installed on the side fuselage equipped with chuck of clamping workpiece device, and second feed arrangement is through second Horizontal feed device is installed on the side fuselage equipped with cylinder apparatus of clamping workpiece device, and the of first feed arrangement One main shaft, the second main shaft of the second feed arrangement are parallel to each other and are located at the third main shaft longitudinal center line of clamping workpiece device In same level.

Preferably, first knife bar cross section is regular hexagon.

Preferably, the main shaft legacy system of the first knife bar rotating device, the second knife bar rotating device is variable-frequency electric The transmission system of machine and belt wheel transmission mechanism composition；The first level feed arrangement includes the first Z-direction mobile device and the first X To mobile device, the first Z-direction mobile device include the first Z-direction servo motor, the first Z-direction screw rod, the first Z-direction actuating sleeve, First Z-direction moving carriage and the mobile support base of the first Z-direction, the mobile support base of two first Z-directions are supported on fuselage, the first Z-direction silk Bar, which is worn, to be connect on the mobile support base of two first Z-directions, and the driving of the first Z-direction, which is worn, connects the first Z-direction screw rod, the first Z-direction screw rod connection the One Z-direction servo motor, the support of the first Z-direction moving carriage are connected on the first Z-direction actuating sleeve, and the first Z-direction moving carriage is equipped with First X is to dovetail guide；First X to mobile device include the first X to servo motor, the first X to screw rod, the first X to drive To moving carriage, the first X to mobile support base, the first X is supported on the first Z-direction moving carriage to mobile support base by dynamic set, the first X On, the first X is worn to screw rod to be connect in the first X on mobile support base, and the first X is worn to screw rod meets X to actuating sleeve, and the first X is to driving Put on the first X that the first X of connection is opened up on mating first Z-direction moving carriage to moving carriage, the first X to moving carriage bottom To the guide rail slot structure of dovetail guide, the first X supports the first spindle box on moving carriage, the first X to dovetail guide with The guide frame of guide rail slot structure uses inverted inverted dovetail slot, the tenon fit structure for preventing from deviating from upward；Second horizontal feed Device has structure identical with first level feed arrangement.

Preferably, for tool there are three tool holder, the first tool holder, which is fixed on, is pierced by the on first knife bar The head of first knife bar in one front-end of spindle face, the second tool holder are fixed on the first knife bar for being pierced by the first front-end of spindle face Middle part, third tool holder is fixed on the first knife bar for being pierced by the first front-end of spindle face close to the tail portion of spindle box.

Preferably, first knife bar, which is pierced by the front and rear part of the first main shaft to wear, is connected to the first knife bar support sleeve, first The inner hole cross-sectional shape of knife bar support sleeve, size match with the first knife bar cross section, and the first knife bar support sleeve, which is equipped with, to be run through First knife bar supports first lock screw of the jacket wall to compress knife bar side, and the first lock screw is by contacting and squeezing knife bar Side, which is formed, fixes and supports the first knife bar；Second knife bar is pierced by the front and rear part of the second main shaft to wear and be connected to and first Knife bar supports the identical second knife bar support sleeve of nested structure.

Preferably, first feed arrangement, the second feed arrangement further include the first knife bar axial adjusting device, second Knife bar axial adjusting device, the first knife bar axial adjusting device include first gear, the first rack gear, the first adjustment axis, and One gear, which is worn, to be connect the first adjustment axis and is supported on the first spindle box through the first axle bed, is opened on the first main shaft below first gear If the first through slot, the first rack gear is set in the first through slot and on the first knife bar that axially position is mounted in the first main shaft, the One gear engages the first rack gear；The second knife bar axial adjusting device is identical as the axially adjustable apparatus structure of the first knife bar.

Preferably, connecting rod front end outer round surface is equipped with external screw thread, the internal screw thread with the drag link sleeve inner hole of chuck The outer wall of connection, the rear-end of spindle inner hole wall and the connection rod rear end corresponding to it is respectively equipped with keyway, the master along axial direction Axis and connecting rod are positioned by keyway.

Preferably, the fixed frame is the two rectangular axis of rolling bolsters for being arranged and being fixed on cylinder piston rod, it is described Two rolling members are two deep groove ball bearings, are equipped with spacer sleeve between the two rectangular axis of rolling bolster, the spacer sleeve is arranged in On cylinder piston rod, both ends are fixedly connected with two axis of rolling bolster sides respectively；Second end plate of support base and and support base Sliding sleeve is equipped between the adjacent axis of rolling bolster of second end plate, the sliding sleeve is arranged on cylinder piston rod, and one end is fixed In in support base the second end plate through-hole, the other end is fixed on axis of rolling bolster side.

Preferably, the cylinder apparatus quantity is 6.

Preferably, once machining lathe further includes digital control system to a kind of crucible, the first feed dress The first knife bar rotating device, the first level feed arrangement set, the second knife bar rotating device of the second feed arrangement, the second level Feed arrangement, third main axis transmission system, cylinder apparatus are connected with digital control system.

Compared with prior art, the utility model has the beneficial effects that

(1) two feed arrangements positioned opposite, the setting of clamping workpiece device is arranged in the utility model on same fuselage Between feed arrangement, the first feed arrangement is just facing workpiece from workpiece and is being processed, the third main shaft of clamping workpiece device with Connecting rod uses circular tube shaped hollow structure, and the ringlike round plate for connecting rod rear end is also hollow structure, makes the knife of the second feed arrangement Bar, cutter enter workpiece bottom end simultaneously inside connecting rod and are processed, and same on the head, middle part, tail portion of the first knife bar When tool holder is installed, make cutter to inner hole of workpiece aperture end face, inner hole wall, bottom wall, bottom end are comprehensive, without the accurate of dead angle Processing, solves the problems, such as that multiple clamping, time-consuming, laborious, processing efficiency is low, has achieved the purpose that primary machining.

(2) it is arranged at least two on spindle box of the utility model after the third spindle box of clamping workpiece device on the outside of axis hole A cylinder apparatus, the clamping part of each cylinder apparatus uniformly clamp the ringlike round plate of connection rod rear end, the reciprocal fortune of cylinder piston rod It is dynamic drive ringlike round plate and connecting rod and together with the wedge mount for being fixed on connecting rod front end it is axially reciprocating along main shaft, The axially reciprocating of wedge mount makes the base jaw being placed on wedge mount along chuck radial motion, to realize clamping and the pine of workpiece It opens, cylinder apparatus quantity can be designed according to workpiece size, adjust chuck chucking power, keep clamping power bigger, clamping is stronger, keeps Chucking power is uniform, solves the problems such as clamping is unstable, and the structure is simple, installs, is easy to operate, securely and reliably.

(3) the first knife bar of the utility model, the second knife bar rotating device use variable-frequency motor and synchronous pulley driving mechanism Driving spindle, feed system using the X of servo motor driving to mobile device and Z-direction mobile device, before and after realizing cutter at high speeds, Left and right high speed rotation, clamping workpiece device use the transmission system drives main shaft of variable-frequency motor and gear drive, it is ensured that work Part stability of rotation realizes that cutter processes inner hole of workpiece end face, inner hole wall, bottom wall, each position essence of bottom end outer wall really, into one Step guarantees workpiece time processing in place, and guarantees the precision of processing.

(4) for the knife bar of the first feed arrangement of the utility model, the second feed arrangement using hexagon, rigidity is good, is fixed easily, It is with small vibration, knife bar support sleeve is set, guarantees that knife bar does not shift, clamping workpiece device uses three-jaw fluid-pressure chuck, and passes through postposition The movement of the piston rod of cylinder apparatus drives chuck base jaw mobile, guarantees that workpiece and chuck are coaxial, adjusts knife bar center and chuck Center is in same level, so that it may guarantee Workpiece Machining Accuracy, improve processing quality and yield rate.

(5) knife bar axial adjusting device is arranged in the utility model, can be in Workpiece length variation and since fuselage length is fixed First feed arrangement, the second feed arrangement are restricted the case where making machine tooling range be restricted in moving distance on fuselage Under, complete work pieces process by adjusting knife bar relative axial position, keep machine tooling range bigger, saved equipment investment at This.

(6) the utility model clamping workpiece device substitutes angling cylinder using multiple cylinder apparatus, solves common revolution oil Cylinder chucking power is small, and high-power angling cylinder valuableness problem reduces costs.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of the primary machining lathe of crucible of the utility model；

Fig. 2 is the right view of the first feed arrangement in Fig. 1；

Fig. 3 is in Fig. 2 along the cross-sectional view of C-C hatching line；

Fig. 4 is the first X of the present invention to mobile device structural schematic diagram；

Fig. 5 is in Fig. 3 along the cross-sectional view of D-D hatching line；

Fig. 6 is the left view of the second feed arrangement in Fig. 1；

Fig. 7 is in Fig. 6 along the cross-sectional view of E-E hatching line；

Fig. 8 is the 2nd X of the present invention to mobile device structural schematic diagram；

Fig. 9 is in Fig. 7 along the cross-sectional view of F-F hatching line；

Figure 10 is in Fig. 1 along the cross-sectional view in the direction A-A；

Figure 11 is in Fig. 1 along the cross-sectional view in the direction B-B；

Figure 12 is in Figure 10 along the cross-sectional view of G-G hatching line；

Figure 13 is the structural schematic diagram of cylinder apparatus in Figure 12；

Figure 14 is in Figure 13 along the cross-sectional view of H-H hatching line；

Figure 15 is in Figure 14 along the cross-sectional view of I-I hatching line.

In Fig. 1-15, the first feed arrangement 1, first level feed arrangement 11, the first Z-direction mobile device 111, the first Z-direction Servo motor 1111, the first Z-direction screw rod 1112, the first Z-direction actuating sleeve 1113, the first Z-direction moving carriage 1114, the first Z-direction are moved Dynamic support base 1115, the first X is to dovetail guide 1116, and the first X is to mobile device 112, and the first X is to servo motor 1121, the first X To screw rod 1122, the first X is to actuating sleeve 1123, and the first X is to moving carriage 1124, and the first X is to mobile support base 1125, the first knife Bar 12, the first knife bar rotating device 13, the first main axis transmission system 131, the first variable-frequency motor 1311, first pulley transmission mechanism 1312, the first main shaft 132, the first spindle box 133, the first knife bar support sleeve 14, the first lock screw 141, the first knife bar axial direction Adjustment device 15, first gear 151, the first rack gear 152, the first adjustment axis 153, the first axle bed 154, the first through slot 155, second Feed arrangement 2, the second horizontal feed device 21, the second Z-direction mobile device 211, the second Z-direction servo motor 2111, the second Z-direction silk Bar 2112, the second Z-direction actuating sleeve 2113, the second Z-direction moving carriage 2114, the mobile support base 2115 of the second Z-direction, the 2nd X is to swallow Tail guide rail 2116, the 2nd X is to mobile device 212, and the 2nd X is to servo motor 2121, and the 2nd X is to screw rod 2122, and the 2nd X is to driving Set 2123, the 2nd X is to moving carriage 2124, and the 2nd X is to mobile support base 2125, the second knife bar 22, the second knife bar rotating device 23, the second main axis transmission system 231, the second variable-frequency motor 2311, the second belt wheel transmission mechanism 2312, the second main shaft 232, second Spindle box 233, the second knife bar support sleeve 24, the second lock screw 241, the second knife bar axial adjusting device 25, second gear 251, the second rack gear 252, second adjustment axis 253, the second axle bed 254, the second through slot 255, clamping workpiece device 3, chuck 31, card Disk body 311, base jaw 312, wedge mount 313, drag link sleeve 314, soft pawl 315, chuck driving device 32, third spindle box 321, oil cylinder Dispose through-hole 3211, third spindle box front-axle hole 3212, axis hole 3213 after third spindle box, third main shaft 322, third main shaft key Slot 3221, connecting rod 323, connecting rod keyway 3231, key 3232, key fixed screw 3233, ringlike round plate 324, ringlike round plate is solid Determine screw 3241, third main axis transmission system 325, cylinder apparatus 33, support base 331, support base first end plate 3311, first end Plate through-hole 3315, first end plate through-hole axle sleeve 3317, the second end plate of support base 3312, the second end plate through-hole 3316, the second end plate Through-hole axle sleeve 3318, support base crossbeam 3313, piston rod position limiting device 3314, oil cylinder main body 332, cylinder piston rod 333, clamping Portion 334, fixed frame 3341, rolling member 3342, spacer sleeve 3343, sliding sleeve 3344, fixed frame fixed screw 3345, fuselage 4, Tool holder 5.

Specific embodiment

The utility model is further described in the following with reference to the drawings and specific embodiments.

In the following description, it is to be understood that term " X to ", " Z-direction " are based on orientation shown in Figure of description It is defined, if Z-direction refers to the left and right directions of Fig. 1 on the basis of Fig. 1, X is to referring in Fig. 1 perpendicular to drawing to extroversion Interior direction, is merely for convenience of description of the present invention and simplification of the description, and is not considered as limiting the invention.

In addition connection of the component in this embodiment if not otherwise specified such as between chuck, screw rod and component Or fixed form, structure belong to the prior art, connection or fixed form can be to pass through bolt commonly used in the prior art Fixed or pin is fixed or therefore the modes such as pin shaft connection are no longer described in detail in the present embodiment.

In Fig. 1-15, a kind of crucible once machining lathe, including the first feed arrangement 1, the second feed arrangement 2, Clamping workpiece device 3, fuselage 4, tool holder 5.

As shown in Figure 1, the first feed arrangement 1 is installed on fuselage 4, and clamping workpiece device 3, the second feed arrangement 2, first Feed arrangement 1, the second feed arrangement 2 are installed on the both ends of fuselage along its length, the first feed arrangement 1, the second feed arrangement 2 Front end face be in state positioned opposite, clamping workpiece device 3 is installed on the intermediate position of fuselage.

As shown in Figs. 1-5, the first feed arrangement 1 includes first level feed arrangement 11, the first knife bar 12, the rotation of the first knife bar Rotary device 13, the first knife bar support sleeve 14, the first knife bar axial adjusting device 15, first level feed arrangement 11 are installed on fuselage On 4, first level feed arrangement 11 includes the first Z-direction mobile device 111 and the first X to mobile device 112, and the first Z-direction is mobile The mobile support base 1115 of two first Z-directions of device 111 is installed on fuselage 4, and the first Z-direction screw rod 1112 is worn to connect and be moved in the first Z-direction On dynamic support base 1115, the first Z-direction actuating sleeve 1113, which is worn, connects the first Z-direction screw rod 1112, and the first Z-direction screw rod 1112 connects the first Z To servo motor 1111, the support of the first Z-direction moving carriage 1114 is connected on the first Z-direction actuating sleeve 1113, and the movement of the first Z-direction is dragged Plate 1114 is equipped with the first X to dovetail guide 1116, and the first X is supported on the first Z-direction moving carriage to mobile support base 1125 On 1114, the first X is worn to screw rod 1122 to be connect in the first X on mobile support base 1125, and the first X is worn to screw rod 1122 meets the first X To actuating sleeve 1123, the first X connects the first X to moving carriage 1124 to 1123 top of actuating sleeve, and the first X is to moving carriage 1124 Lower part is guide rail slot structure, uses the inverted inverted dovetail slot for preventing from deviating from upward, tenon to cooperate to the guiding of dovetail guide 1116 with the first X Guide frame, the first knife bar rotating device 13 include the first main axis transmission system 131, the first main shaft 132, the first spindle box 133, First spindle box 133 installs the first X on moving carriage 1124, and the first main shaft 132 is threaded on the first spindle box 133, and first First variable-frequency motor 1311 of main axis transmission system 131 is installed on the first spindle box side, and the first variable-frequency motor 1311 passes through the One belt wheel transmission mechanism 1312 drives the rotation of the first main shaft 132, and the first knife bar 12 coaxially is connected in the first main shaft 132, be in The rotation of first main shaft 132 drives rotation status, and 12 front and back end of the first knife bar is pierced by the first main shaft front/rear end respectively, for obtain compared with Good rigidity and rotational stabilization, the first knife bar 12 is the knife bar that cross section is regular hexagon, to make the first knife bar 12 first Play does not occur radially, axially along main shaft in main shaft 132, fixation is more reliable, before the first knife bar 12 is pierced by the first main shaft 132 The first knife bar support sleeve 14 that inner hole cross-sectional shape is respectively set in rear, size matches with the first knife bar cross section, two A first knife bar support sleeve 14 is coaxially fixed on respectively on the end face of the first main shaft rear and front end, and the first knife bar support sleeve 14 is equipped with Through the first lock screw 141 of the first knife bar support jacket wall, 141 lower end surface of the first lock screw passes through the contact of support jacket wall simultaneously The first knife bar side is squeezed, inner hole cross section is two the first lock screws 141 of the first knife bar support sleeve 14 of regular hexagon It is contacted across the first knife bar support jacket wall and squeezes the non-conterminous two sides of the first knife bar of regular hexagon top half two, by first Knife bar 12 lock onto the first knife bar support sleeve inner hole wall, and formation fixes and supports (such as Fig. 5) to the first knife bar 12；First knife bar 12 are provided with the first knife bar axial adjusting device 15 above the part in the first spindle box 133, and the first knife bar is axially adjusted Engagement positions 15 include the first axle bed 154 being fixed on the first spindle box 133, the first adjustment being threaded on the first axle bed 154 Axis 153, the first gear 151 being connected on the first adjustment axis 153 open up on first main shaft 132 of the lower section of first gear 151 First through slot 155, in the first through slot 155 and axially position is mounted on the on the first knife bar 12 in the first main shaft 132 One rack gear 152, first gear 151 and the first rack gear 152 are in meshing state；In the first knife for being pierced by 132 front end face of the first main shaft One or more tool holder 5 is installed on bar 12, cutter is installed on tool holder 5, in processing long length drum When shape workpiece such as graphite crucible, it is simultaneous processing inner hole of workpiece port, side wall, bottom wall, is being pierced by 132 front end face of the first main shaft The head of first knife bar 12, middle part and one tool holder 5 is respectively installed close to the tail portion of the first spindle box 133, to make to install It is more convenient with using, it is solid in cutter of the first knife bar 12 for being pierced by the first front-end of spindle face close to the tail portion of the first spindle box 133 Determine frame 5 to be mountable on the first knife bar support sleeve 14 of 132 front end of the first main shaft.

As Figure 6-9, the second feed arrangement 2 includes the second horizontal feed device 21, the second knife bar 22, the rotation of the second knife bar Rotary device 23, the second knife bar support sleeve 24, the second knife bar axial adjusting device 25, the second horizontal feed device 21 include the 2nd Z To mobile device 211 and the 2nd X to mobile device 212, the second Z-direction mobile device 211 includes the second Z-direction servo motor 2111, Second Z-direction screw rod 2112, the second Z-direction actuating sleeve 2113, the second Z-direction moving carriage 2114, the mobile support base 2115 of the second Z-direction, 2nd X is to dovetail guide 2116, and the 2nd X includes the 2nd X to servo motor 2121 to mobile device 212, and the 2nd X is to screw rod 2122, the 2nd X are rotated to moving carriage 2124, the 2nd X to mobile support base 2125, the second knife bar to actuating sleeve 2123, the 2nd X Device 23 includes the second main axis transmission system 231, the second variable-frequency motor 2311, the second belt wheel transmission mechanism 2312, the second main shaft 232, the second spindle box 233, the second knife bar support sleeve 24 includes the second lock screw 241, the second knife bar axial adjusting device 25 Including second gear 251, the second rack gear 252, second adjustment axis 253, the second axle bed 254, the second through slot 255, the second feed dress It is identical as the first feed arrangement 1 to set 2 Each parts, for processing drum-shaped workpiece, the second feed arrangement 2 is only needed to workpiece Bottom is processed, thus only need to install tool holder on the head for the second knife bar 22 for being pierced by 232 front end face of the second main shaft 5, the second knife bar 22 can be different from 12 length of the first knife bar, 131 electricity of the second main axis transmission system 231 and the first main axis transmission system Machine power can also be different, in the first knife bar 12 of guarantee, 22 longitudinal center line of the second knife bar on the basis of same level, first The length of spindle box 133, the first main shaft 132 and the second spindle box 233, the second main shaft 232 can be different.

As shown in Fig. 1, Figure 10-15, clamping workpiece device 3 includes chuck 31 and chuck driving device 32, and chuck 31 includes Chuck body 311, base jaw 312, wedge mount 313, drag link sleeve 314, soft pawl 315, chuck body 311,313 shape of wedge mount are cylinder Shape, wedge mount 313 by with 311 inner hole wall of chuck body slidably in a manner of coaxial placement in 311 inner hole of chuck body, base jaw 312 pacify Loaded on chuck body 311 and wedge mount 313, chuck body 311, base jaw 312, wedge mount 313 form wedge mechanism, and inner surface is equipped with The circular tube shaped drag link sleeve 314 of screw thread is coaxially fixed on 313 inner hole of wedge mount, and drag link sleeve 314 and wedge mount 313 are fixedly connected on one Rising can move in 311 inner hole of chuck body along axial reciprocating, and soft pawl 315 is fixed on the surface of base jaw 312 in chuck body 311, chuck Driving device 32 includes third spindle box 321, third main shaft 322, connecting rod 323, ringlike round plate 324, third spindle drive system System 325, at least two cylinder apparatus 33, third spindle box 321 is fixedly installed on fuselage 4,322 rear and front end of third main shaft point It is not threaded onto after third spindle box front-axle hole 3212 and third spindle box in the bearing of axis hole 3213, third front-end of spindle stretches out the Three spindle box front-axle holes 3212 are simultaneously fixedly and coaxially connected in 311 rear end face of chuck body, and third main axis transmission system 325 drives third Main shaft 322 rotates, transmission system of the third main axis transmission system 325 using variable-frequency motor and gear drive composition, third The variable-frequency motor of main axis transmission system 325 is installed on fuselage 4, and shape is that the connecting rod 323 of circular tube shaped is coaxially built in third 322 inner hole of main shaft, 323 outer wall of connecting rod are slidably matched with 322 inner hole wall of third main shaft, and 323 front end outer round surface of connecting rod is set There is external screw thread, is connected on the internal screw thread of drag link sleeve 314, the connecting rod 323 corresponding to 322 rear end inner wall of third main shaft and its Rear end outer wall be respectively equipped with axial third main shaft keyway 3221 and connecting rod keyway 3231, third main shaft 322 and connecting rod 323 key 3232 by being mounted in keyway reaches circumferentially fixed, and key 3232 is fixed on third master by key fixed screw 3233 In shaft key groove 3221 and connecting rod keyway 3231, prevent connecting rod 323 from producing relative rotation with third main shaft 322, drag link sleeve 314, chuck body 311, third main shaft 322 are fixed together rotation, are also prevented from connecting rod 323 and drag link sleeve 314 produces It is raw to relatively rotate, to prevent connecting rod 323 from falling off from drag link sleeve 314, forms connecting rod 323 and consolidate with drag link sleeve 314 Fixed connection, 323 rear end face of connecting rod stretch out 322 rear end face of third main shaft and are coaxially fixed with ringlike round plate 324, ringlike round plate 324 are fixed on connecting rod rear end face by ringlike round plate fixed screw 3241, and ringlike round plate plate face and connecting rod 323 are axial vertical Directly, at least two oil cylinders dress is distributed along the circumference on 321 side of third spindle box of 3213 periphery of axis hole after third spindle box 33 are set, each cylinder apparatus 33 is made of support base 331, oil cylinder main body 332, cylinder piston rod 333, clamping part 334, each oil The support base 331 of cylinder assembly 33 includes support base first end plate 3311, the second end plate of support base 3312,3313 and of support base crossbeam Piston rod position limiting device 3314, support base first end plate 3311,3312 plate face of the second end plate of support base are major arc shape and difference It is perpendicularly fixed at 3313 both ends of support base crossbeam, support base first end plate 3311,3312 plate face center of the second end plate of support base point First end plate through-hole 3315 and the second end plate through-hole 3316 that She You be not axial, first end plate through-hole 3315, the second end plate through-hole 3316 longitudinal center line is located along the same line, to be easily installed maintenance, first end plate through-hole 3315, the second end plate through-hole First end plate through-hole axle sleeve 3317, the second end plate through-hole axle sleeve 3318, the oil of each cylinder apparatus 33 are separately installed in 3316 The outside plate face of corresponding support base first end plate 3311 is fixed in one end that cylinder main body 332 has cylinder piston rod 333 to stretch out, and stretches The cylinder piston rod 333 of oil cylinder main body 332 passes sequentially through corresponding support base first end plate through-hole 3315 and the second end plate out Through-hole 3316, tail end are pierced by the second end plate through-hole 3316 and are located at outside the outside plate face of the second end plate of support base 3312 and are fixed with work First end plate is respectively arranged in stopper rod limiting device 3314, support base first end plate through-hole 3315 and the second end plate through-hole 3316 Through-hole axle sleeve 3317 and the second end plate through-hole axle sleeve 3318, the cylinder piston rod 333 for stretching out oil cylinder main body are threaded onto support base the And it can be along first end plate through-hole 3315 and the second end plate in end plate through-hole axle sleeve 3317 and the second end plate through-hole axle sleeve 3318 The longitudinal center line of through-hole 3316 moves back and forth in first end plate through-hole axle sleeve 3317 and the second end plate through-hole axle sleeve 3318, position On cylinder piston rod 333 between the support base first end plate 3311 and the second end plate of support base 3312 of each cylinder apparatus 33 It is both provided with clamping part 334, each clamping part 334 includes the fixed frame 3341 being fixed on cylinder piston rod and is fixed on fixation Two rolling members 3342 of frame end, rolling member 3342 are to hold with the radial direction rotated around the axis vertical with cylinder piston rod Pressure surface and along the deep groove ball bearing of axisymmetry, symmetrical spherical rolling body etc., two rolling members 3342 are living relative to oil cylinder The position of stopper rod 333 is in opposite direction, each clamping part relative to the position of cylinder piston rod 333 with support base crossbeam 3313 334 two rolling members, 3342 axis is vertical with the cylinder piston rod 333 that the clamping part 334 is fixed, two rolling members 3342 Center be located on the same straight line parallel with cylinder piston rod 333 and be located across 333 longitudinal center line of cylinder piston rod In same plane, the distance between two rolling members 3342 of each clamping part 334 matches with 324 plate thickness of ringlike round plate, also That can just clamp 324 two sides plate face of ringlike round plate, centered on the present embodiment fixed frame 3341 be equipped with axially extending bore and with oil Cylinder piston rod is in two rectangular axis of rolling bolsters being slidably matched, and two axis of rolling bolster upper ends pass through fixed frame fixed screw respectively 3345 are fixed on cylinder piston rod 333, and two rolling members 3342 are the deep groove ball bearing for being fixed on two axis of rolling bolster ends, Two bearings are positioned at the other side for support base crossbeam 3313 relative to the position of cylinder piston rod 333 being in opposite direction, two bearings Center is located on the same straight line parallel with cylinder piston rod 333 and is located across the same of 333 longitudinal center line of cylinder piston rod In one plane and axis is vertical with cylinder piston rod 333, and the relative position and two bearings for adjusting two axis of rolling bolsters are lived with oil cylinder The distance of stopper rod 333 makes the gap between the outer ring cylindrical surface of two bearings slightly larger than 324 plate thickness of ringlike round plate, and can symmetric clamp Firmly ringlike round plate 324, to prevent in the course of work since stress makes two axis of rolling bolsters skid or send out on cylinder piston rod 333 Raw skew, is provided with circular tube shaped spacer sleeve 3343 between two axis of rolling bolsters, the second end plate of support base 3312 with and its phase Circular tube shaped sliding sleeve 3344 is set between adjacent axis of rolling bolster, and spacer sleeve 3343 is arranged in oil cylinder piston with sliding matching mode On bar 333, end face corresponding with two axis of rolling bolsters is fixedly connected respectively at both ends, and sliding sleeve 3344 is worn with sliding matching mode In on cylinder piston rod 333, one end is fixed in support base the second end plate through-hole axle sleeve 3318, and the other end is fixed on rolling bearing The corresponding end face of frame thus constitutes the cylinder apparatus 33 that end is installed on third spindle box 321.

The center of circle is in 3213 center of axis hole after using third spindle box on 321 trailing flank of third spindle box and radius is greater than third It is offered on the same circumference of 322 exradius of main shaft and disposes through-hole 3211, oil cylinder peace by the oil cylinder in the center of circle of the point on circumference It sets 3211 aperture of through-hole to match with 332 barrel diameter of oil cylinder main body, quantity is equal with 33 quantity of cylinder apparatus, and arbitrary neighborhood two Oil cylinder disposes 3211 center spacing of through-hole equal, and the oil cylinder main body 332 of each cylinder apparatus 33 is fixed through oil cylinder placement through-hole 3211 In in third spindle box 321, corresponding 3311 lateral surface of support base first end plate is fixed on oil cylinder placement 3211 periphery of through-hole 321 lateral surface of third spindle box, after the corresponding cylinder piston rod 333 in the support base 331 is located at third spindle box 321 On the outside of end and parallel with third main shaft 322, two rolling members, 3342 center of the clamping part 334 of each cylinder apparatus 33 is located across In the same plane of 333 longitudinal center line of cylinder piston rod and 322 longitudinal center line of third main shaft and towards ringlike round plate 324 Longitudinal center line arrangement, two rolling members 3342 of each clamping part 334 are distributed in 324 two sides of ringlike round plate, and are connect with rotation Touching clamps the end of 324 two sides plate face of ringlike round plate, and rolling member 3342 is deep groove ball bearing, two deep-groove balls in the present embodiment Bearing is arranged side by side, and two axial lines are vertical with cylinder piston rod 333 and are located across 333 longitudinal center line of cylinder piston rod and annular In the same plane of 324 longitudinal center line of plectane, two bearings are symmetrically distributed in 324 two sides of ringlike round plate, the outer ring circle of two bearings Cylinder contacts and clamps the end of 324 two sides plate face of ringlike round plate.

Referring again to Fig. 1-12, clamping workpiece device 3 is fixed on fuselage 4 through third spindle box 321, third main shaft 322 Along 4 length directions of fuselage, that is, Z-direction arrangement, and it is equipped with front end and namely the first feed of 1 front end of the first feed arrangement of chuck 31 The Cutting tool installation manner end of device is opposite, one end equipped with cylinder apparatus and 2 front end of the second feed arrangement namely the second feed arrangement Cutting tool installation manner end it is opposite, the first main shaft 132, the second main shaft 232, third main shaft 322 longitudinal center line be located at same level It in face and is parallel to each other, such first feed arrangement 1 and the second feed arrangement 2 can be respectively in first level feed arrangements 11 and Two horizontal feed devices 21 drive under relative to fuselage 4 make in the horizontal direction Z-direction and X to movement, the first knife bar 12 and second Knife bar 22 can make moving horizontally for front and rear, left and right relative to clamping workpiece device 3.

The present embodiment further includes digital control system, digital control system and first level feed arrangement 11, the first knife bar rotating device 13, the second horizontal feed device 21, the second knife bar rotating device 23, third main axis transmission system 325, cylinder apparatus 33 connect.

It is a kind of structure narration of the primary machining lathe of crucible above, referring again to Fig. 1-15, with base jaw, soft pawl Quantity is 3, cylinder apparatus quantity is 6, rolling member 3342 is deep groove ball bearing to illustrate its course of work: will Drum-shaped graphite crucible blank workpiece is packed into bottom end towards the direction of chuck 31, while starting 6 cylinder apparatus 33, makes 6 Cylinder piston rod 333 is simultaneously towards, drive annular circle in the case where 6 pair deep groove ball bearings 3342 clamp mobile away from the direction of workpiece Plate 324, the connecting rod 323 connecting with ringlike round plate 324, the drag link sleeve 314 connecting with connecting rod 323 make the axial direction for deviating from workpiece Mobile, the wedge mechanism via wedge mount 313, chuck body 311, base jaw 312 composition connecting with drag link sleeve 314 is transformed into base jaw 312 radial motions moved along 311 surface of chuck body to 311 center of chuck body drive three tools for being fixed on 312 surface of base jaw There is the soft pawl 315 of arc fixture mobile to the center of chuck body 311, firm grip workpiece is being pierced by 132 front end face of the first main shaft The fixed tool holder 5 in the head of the first knife bar 12, middle part and tail portion on load onto cutter, before being pierced by the second main shaft 232 Cutter is loaded on the fixed tool holder 5 in the head of second knife bar 22 of end face, passes through first level feed arrangement 11, first Knife bar axial adjusting device 15 adjusts position relative to workpiece of the first feed arrangement 1, the first knife bar 12, by second it is horizontal into The position of the second feed arrangement 2, the second knife bar 22 relative to workpiece is adjusted to device 21, the second knife bar axial adjusting device 25, Two pair of first lock screw 141 through the first knife bar support jacket wall and the second knife bar support jacket wall and two pair second are adjusted respectively First knife bar 12 and the second knife bar 22 are locked respectively in the first knife bar support sleeve 14 and the second knife bar by lock screw 241 In support sleeve 24, while starting the first main axis transmission system 131 and rotating the first main shaft 132 rotates the first knife bar 12, starting the Two main axis transmission systems 231, which rotate the second main shaft 232, rotates the second knife bar 22, and starting third main axis transmission system 325 rotates Third main shaft 322 makes workpiece rotation, to make the cutter of the first knife bar 12 to workpiece front inner hole port, hole wall, bottom wall, second The cutter of knife bar 22 carries out simultaneous processing to workpiece bottom end outer wall, and one-pass molding solves conventional brace and is unable to clamping or clamping Unstable, traditional machine tool needs multiple working procedure, multiple clamping problem, improves machining accuracy and efficiency, reduces manufacturing cost.

The above is only utility model preferred embodiment, it is noted that the utility model not only can be to graphite crucible Processing, also can be processed large-diameter circular barrel-shaped workpiece, therefore for those skilled in the art, is not taking off Under the premise of from the utility model technical principle, several variations and improvement can be also made, such as knife bar support sleeve shape, fixation side Formula, the structure of knife bar axial adjusting device, driving method etc., or these are improved and is applied to other types workpiece, these changes Dynamic and improvement and application also should be regarded as the protection scope of the utility model.

Claims (10)

1. a kind of crucible once machining lathe, including fuselage, which is characterized in that

The fuselage is equipped with the first feed arrangement, clamping workpiece device and the second feed arrangement, and the clamping workpiece device is set It is placed between the first feed arrangement and the second feed arrangement, first feed arrangement, the second feed arrangement front end face are in opposite Arrangement states；

First feed arrangement is equipped with the first knife bar, the first knife bar rotating device, first level feed arrangement, the second feed dress The second knife bar, the second knife bar rotating device, the second horizontal feed device are installed, the first knife bar rotating device includes first Main axis transmission system, is installed on first rotated under the drive of the first main axis transmission system on the first spindle box at the first spindle box Main shaft, the second knife bar rotating device include the second main axis transmission system, the second spindle box, the second main shaft, first knife Bar, the second knife bar are coaxially connected to the first main shaft, in the second main shaft respectively, rotate band in the first main shaft, the second main shaft respectively Rotation status is moved, one or more tool holder is respectively set on first knife bar, the second knife bar；

The clamping workpiece device includes chuck and chuck driving device, the chuck include chuck body, wedge mount, drag link sleeve with And base jaw and soft pawl, the chuck driving device include the third spindle box being fixed on fuselage, are threaded on third spindle box And the cylindrical third main shaft that front end is fixed on chuck body, the third spindle drive system for driving third main shaft to rotate It unites, be coaxially built in the state of being slidably matched in third main shaft with third main shaft synchronous rotary and front end is fixed in drag link sleeve Rear end stretches out the circular tube shaped connecting rod in third rear-end of spindle face, is coaxially fixed on connecting rod tail end and plate face and pitman shaft are in The vertical ringlike round plate of heart line and at least two after third spindle box axis hole be circumferentially uniformly distributed and be fixed on third spindle box Cylinder apparatus on trailing flank, each cylinder apparatus include by crossbeam and being perpendicularly fixed at crossbeam both ends and center and setting respectively Have the axially extending bore of longitudinal center line on the same line first end plate and second end board group at support base, be fixed on support The oil cylinder main body of plate face on the outside of seat first end plate, stretches out oil cylinder main body and is successively threaded onto the axial direction of first end plate Yu the second end plate It can oil of the tail end reciprocating along two through hole longitudinal center line and being pierced by the second end plate through-hole equipped with limiting device in through-hole Cylinder piston rod, and be set between support base first end plate and the second end plate by the fixed frame that is fixed on cylinder piston rod Be set to fixed frame end and and crossbeam relative to cylinder piston rod direction in opposite direction two rolling members form Clamping part, two rolling members every of each clamping part has the diameter rotated along the axis vertical with corresponding cylinder piston rod To pressure-bearing surface and along axisymmetry, the center of two rolling members is located on the same straight line parallel with cylinder piston rod, two rollings The thickness of distance and ringlike round plate between dynamic component matches, with third spindle box rear axle on third spindle box trailing flank Hole center is that the center of circle and radius are greater than on the same circumference of third main shaft exradius and offer using the point on circumference as the center of circle, number It measures the equal oil cylinder of center of circle spacing equal with cylinder apparatus quantity and arbitrary neighborhood two and disposes through-hole, each cylinder apparatus Oil cylinder main body by oil cylinder dispose through-hole be placed in third spindle box, outside the support base first end plate of each cylinder apparatus Lateral plates are fixedly connected with third main shaft box back lateral surface, the cylinder piston rod in each cylinder apparatus support base with Third main shaft is parallel and is located on the outside of third spindle box, the axial centre of two rolling members of the clamping part of each cylinder apparatus Line is located across in the same plane of corresponding cylinder piston rod longitudinal center line and third main shaft longitudinal center line and two rollings Ringlike round plate two sides, two rolling members of each clamping part are arranged towards ringlike round plate longitudinal center line and be distributed in dynamic component In clamping ringlike round plate two sides plate face end state, the ringlike round plate is under the two rolling members clamping of each clamping part in each Cylinder piston rod moves back and forth and moves back and forth state along third main shaft longitudinal center line；The clamping workpiece device is through third master Axle box is fixed on fuselage, and first feed arrangement is installed on being equipped with for clamping workpiece device through first level feed arrangement and blocks On the side fuselage of disk, second feed arrangement through the second horizontal feed device be installed on clamping workpiece device equipped with oil cylinder On the side fuselage of device, the first main shaft of first feed arrangement, the second main shaft of the second feed arrangement and clamping workpiece The third main shaft longitudinal center line of device is parallel to each other and is located in the same horizontal plane.

2. a kind of primary machining lathe of crucible according to claim 1, it is characterised in that: first knife bar is horizontal Section is regular hexagon.

3. a kind of primary machining lathe of crucible according to claim 1, which is characterized in that the first knife bar rotation Rotary device, the second knife bar rotating device main shaft legacy system be variable-frequency motor and belt wheel transmission mechanism composition transmission system；

The first level feed arrangement includes the first Z-direction mobile device and the first X to mobile device,

The first Z-direction mobile device includes the first Z-direction servo motor, the first Z-direction screw rod, the first Z-direction actuating sleeve, the first Z-direction Moving carriage and the mobile support base of the first Z-direction, the mobile support base of two first Z-directions are supported on fuselage, and the first Z-direction screw rod, which is worn, to be connect On the mobile support base of two first Z-directions, the driving of the first Z-direction, which is worn, connects the first Z-direction screw rod, and the first Z-direction screw rod connects the first Z-direction servo Motor, the support of the first Z-direction moving carriage are connected on the first Z-direction actuating sleeve, and the first Z-direction moving carriage is equipped with the first X to swallow Tail guide rail；

First X to mobile device include the first X to servo motor, the first X to screw rod, the first X to actuating sleeve, the first X to To mobile support base, the first X is supported on the first Z-direction moving carriage to mobile support base by moving carriage, the first X, and the first X is to silk Bar, which is worn, to be connect in the first X on mobile support base, and the first X is worn to screw rod meets X to actuating sleeve, and the first X connects the first X on actuating sleeve To moving carriage, the first X to moving carriage bottom be on mating first Z-direction moving carriage the first X that opens up to dovetail guide Guide rail slot structure, the first X support the first spindle box on moving carriage, and the first X is to dovetail guide and guide rail slot structure Guide frame uses inverted inverted dovetail slot, the tenon fit structure for preventing from deviating from upward；

The second horizontal feed device has structure identical with first level feed arrangement.

4. a kind of primary machining lathe of crucible according to claim 1, which is characterized in that on first knife bar There are three tool holder, the first tool holders to be fixed on the head for being pierced by first knife bar in the first front-end of spindle face for tool, the Two tool holders are fixed on the middle part for being pierced by first knife bar in the first front-end of spindle face, and third tool holder, which is fixed on, to be pierced by First knife bar in the first front-end of spindle face is close to the tail portion of spindle box.

5. a kind of primary machining lathe of crucible according to claim 1, which is characterized in that first knife bar is worn It is worn on the front and rear part of the first main shaft out and is connected to the first knife bar support sleeve, the inner hole cross-sectional shape of the first knife bar support sleeve, size Match with the first knife bar cross section, the first knife bar support sleeve is equipped with through the first knife bar support jacket wall to compress knife bar side The first lock screw, the first lock screw fixes and supports the first knife bar by contacting and squeezing knife bar side and formed；

Second knife bar, which is pierced by the front and rear part of the second main shaft to wear, is connected to the second knife identical with the first knife bar support nested structure Bar support sleeve.

6. a kind of primary machining lathe of crucible according to claim 1, which is characterized in that the first feed dress It sets, the second feed arrangement further includes the first knife bar axial adjusting device, the second knife bar axial adjusting device, first cutter spindle It include first gear, the first rack gear, the first adjustment axis to adjustment device, first gear, which is worn, connects the first adjustment axis and through the first axle bed It is supported on the first spindle box, the first through slot is opened up on the first main shaft below first gear, it is logical that the first rack gear is set to first In slot and axially position is mounted on the first knife bar in the first main shaft, and first gear engages the first rack gear；

The second knife bar axial adjusting device is identical as the axially adjustable apparatus structure of the first knife bar.

7. a kind of primary machining lathe of crucible according to claim 1, which is characterized in that the connecting rod front end Outer round surface is equipped with external screw thread, connect with the internal screw thread of the drag link sleeve inner hole of chuck, and the rear-end of spindle inner hole wall and its institute are right The outer wall for the connection rod rear end answered is respectively equipped with keyway, the main shaft and connecting rod along axial direction and is positioned by keyway.

8. a kind of primary machining lathe of crucible according to claim 1, which is characterized in that the fixed frame is set And if two rectangular axis of rolling bolsters being fixed on cylinder piston rod, two rolling member be two deep groove ball bearings, described two Spacer sleeve is equipped between rectangular axis of rolling bolster, the spacer sleeve is arranged on cylinder piston rod, both ends respectively with two axis of rolling Bolster side is fixedly connected；Second end plate of support base is equipped with between the adjacent axis of rolling bolster of the second end plate of support base Sliding sleeve, the sliding sleeve are arranged on cylinder piston rod, and one end is fixed in support base the second end plate through-hole, and the other end is fixed In axis of rolling bolster side.

9. a kind of primary machining lathe of crucible according to claim 1, which is characterized in that the cylinder apparatus number Amount is 6.

10. a kind of primary machining lathe of crucible according to claim 1, which is characterized in that further include numerical control system System, the first knife bar rotating device, the first level feed arrangement of first feed arrangement, the second knife bar of the second feed arrangement Rotating device, the second horizontal feed device, third main axis transmission system, cylinder apparatus are connected with digital control system.