CN211053396U

CN211053396U - Quartz crucible cuts off chamfering machine

Info

Publication number: CN211053396U
Application number: CN201921959280.3U
Authority: CN
Inventors: 李宝英
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-07-21
Anticipated expiration: 2029-11-13

Abstract

A quartz crucible cutting and chamfering machine comprises a base, a grinding wheel cutting and chamfering device, a crucible rotation driving radial positioning device, a crucible pressing device and an axial positioning device, wherein the grinding wheel cutting and chamfering device, the crucible rotation driving radial positioning device, the crucible pressing device and the axial positioning device are installed on the base. The grinding wheel cutting chamfering device is positioned on one side of the port of the crucible to be processed, the cutting grinding wheel cuts off the waste edges at the port of the crucible from the inside to the outside of the crucible, and the inner and outer corners of the crucible are chamfered by the chamfering grinding wheel after the waste edges are taken down; the driving roller end of the crucible rotation driving radial positioning device is arranged at the bottom of the crucible to be processed to realize radial positioning, and the crucible rotation is driven by friction; the crucible pressing device is positioned on two sides of a crucible to be processed, when the crucible pressing device works, the upper pressing roller I presses pot bodies on two sides of the crucible, and the pressing roller II presses the port waste edge of the crucible; the axial positioning device is positioned at one end for placing the bottom of the crucible to be processed, and the end part of the axial positioning rod is contacted with the middle part of the bottom of the crucible to be processed to perform axial positioning. The crucible port processed by the method is not easy to damage, the quality is good, and the production process is safe and reliable.

Description

Quartz crucible cuts off chamfering machine

Technical Field

The invention belongs to the technical field of quartz crucible cutting chamfering, and particularly relates to a quartz crucible cutting chamfering machine.

Background

In recent years, the solar energy industry has been rapidly developed, and the demand for quartz crucibles has been increased, and therefore, the demand for equipment for manufacturing quartz crucibles has been increased, and a quartz crucible cutting and chamfering machine is one of important equipments. Meanwhile, with the intellectualization of industrial production, the cutting and chamfering of the quartz crucible should be developed towards the intellectualization.

The existing processing equipment is generally a traditional crucible cutting machine tool, a workpiece is driven by a spindle to drive a chuck to rotate, a grinding wheel is manually fed during cutting, the grinding wheel is driven by a common asynchronous motor, two sets of grinding wheel spindles, namely a cutting and chamfering spindle, are arranged, and the machine is provided with a scrap edge receiving and holding mechanism.

The traditional equipment has the following technical problems:

1. The weight of the crucible with the specification of more than 30 inches is about 55kg, the manual loading and unloading and the manual clamping are too long, the labor cost is too high, and the production efficiency is low. When a large workpiece is processed, the deflection is large, and the processing quality is influenced.

2. The shape tolerance taper and ovality of the crucible have certain errors, the manual correction difficulty is high, the crucible is too long in use, and the production efficiency is low.

3. In the processing process, the manual control of the dimensional tolerance of cutting and chamfering is difficult, the dimensional consistency of the processed crucible is poor, and the production efficiency is low.

4. In the cutting process, the edges of the crucible notch are broken to different degrees due to the dead weight falling of the waste edges (if an auxiliary waste edge receiving support has errors due to the taper and the ovality of the crucible, and the coaxiality of the rotary center of the crucible and the actual center of the crucible has errors), so that a certain number of unqualified products are produced.

5. The lathe sets up respectively and cuts off grinding axle, chamfer and grinds the axle, and the waste edge connects and holds that gimbal mechanism sets up loaded down with trivial details, and manufacturing cost is high, and the maintenance point increases, and it is also many to consume the grinding apparatus.

6. The rigidity of the overall layout structure of the machine tool is poor, and when crucible materials have hard spots or a grinding tool is worn nearly, vibration is generated, so that the surface roughness of the product is influenced, and the grinding tool wear is aggravated.

7. The machine tool adopts a full-protection closed structure, the upper space is shielded, and the loading and unloading are inconvenient.

8. In the process of cutting off the crucible in a rotating manner, because the shape of the crucible has errors, the crucible can move along the axis of the crucible in the opposite direction of the axial positioning block, so that the cutting-off grinding tool can deform, and the product quality and the equipment safety are affected.

Disclosure of Invention

Aiming at the technical problems, the quartz crucible cutting chamfering machine is simple to operate, convenient to use, good in quality and safe and reliable in use, and the port of the processed crucible is not easy to damage.

The purpose of the invention is realized by the following technical scheme:

The invention relates to a quartz crucible cutting and chamfering machine, which comprises a base, a grinding wheel cutting and chamfering device arranged on the base, a crucible rotation driving radial positioning device, a crucible pressing device and an axial positioning device,

The grinding wheel cutting chamfering device is positioned on one side of the port of the crucible to be processed, the cutting grinding wheel cuts off the waste edges at the port of the crucible from the inside to the outside of the crucible, and the inner and outer corners of the crucible are chamfered by the chamfering grinding wheel after the waste edges are taken down;

The crucible rotates to drive the radial positioning device, the driving roller end of the radial positioning device is arranged at the bottom of the crucible to be processed to realize radial positioning, and the crucible is driven to rotate by friction;

The crucible pressing devices are positioned at two sides of the crucible to be processed, when the crucible pressing device works, the upper pressing rollers I are pressed on pot bodies at two sides of the crucible to be processed, and the pressing rollers II are pressed on the port waste edges of the crucible to be processed;

And the axial positioning device is positioned at one end for placing the bottom of the crucible to be processed, and the end part of the axial positioning rod is contacted with the middle part of the bottom of the crucible to be processed to axially position the crucible.

Preferably, the grinding wheel cutting and chamfering device comprises a horizontal sliding mechanism, a vertical sliding mechanism, a grinding wheel rotating mechanism, a chamfering grinding wheel and a cutting grinding wheel, the chamfering grinding wheel and the cutting grinding wheel are coaxially mounted at one end of the grinding wheel rotating mechanism corresponding to the port of the crucible, the grinding wheel rotating mechanism is mounted on a vertical sliding seat of the vertical sliding mechanism, and the vertical sliding mechanism is mounted on the base through the horizontal sliding mechanism.

Preferably, the grinding wheel rotating mechanism comprises a main shaft, a main shaft sleeve, a coupling and a stepless speed regulating motor I, wherein the main shaft is arranged in the main shaft sleeve, one end of the main shaft is connected with a stepless speed regulating motor shaft through the coupling, and the other end of the main shaft is provided with a chamfering grinding wheel and a cutting grinding wheel to form a main shaft assembly; the main shaft assembly is arranged in a clamping sleeve on the vertical sliding seat, and is locked by a clamping screw after the length of the main shaft assembly is adjusted.

Preferably, a spacer is arranged between the chamfering grinding wheel and the cutting grinding wheel.

Preferably, the horizontal sliding mechanism comprises a horizontal rectangular guide rail, a horizontal sliding seat and a horizontal servo motor, the horizontal rectangular guide rail is installed on the base, the horizontal sliding seat is connected with the horizontal servo motor through a screw and nut pair and a coupler, and the horizontal sliding seat is driven by the horizontal servo motor to drive the vertical sliding mechanism to slide along the horizontal rectangular guide rail; the convex guide rail of the horizontal rectangular guide rail is a stainless steel guide rail, and the concave guide rail matched with the stainless steel guide rail is a plastic embedded guide rail.

Preferably, the vertical sliding mechanism comprises a servo motor, a speed reducer, a screw and a nut, and a vertical sliding seat, wherein the servo motor is connected with the screw through the speed reducer, the nut which is connected with the screw in a matching way is arranged on the vertical sliding seat, the screw is parallel to a vertical rectangular guide rail, and the vertical rectangular guide rail is arranged on the horizontal sliding seat; and a locking sleeve for mounting a main shaft assembly of the grinding wheel rotating mechanism is arranged on the vertical sliding seat, a convex guide rail of the vertical rectangular guide rail is a stainless steel guide rail, and a concave guide rail matched with the stainless steel guide rail is a plastic embedded guide rail.

Preferably, the crucible rotation driving radial positioning device comprises a stepless speed regulating motor II, a gear box and two driving rollers, wherein the output shaft end of the stepless speed regulating motor II is connected with the gear box, the gear box is symmetrically connected with the two driving rollers rotating in the same direction, and when the crucible rotation driving device works, the two driving rollers are in contact with the outer wall of the crucible to realize radial positioning and drive the crucible to rotate through friction.

Preferably, the drive roller includes that roller and interval set up the running roller on the roller, the roller passes through the bearing frame and installs on the base, and roller one end is connected on the output gear of gear box, and a plurality of running rollers are installed to the other end, and the interval between adjacent running roller is the dead knife clearance, and two drive rollers have the tapering, and it is little to be close to the crucible bottom, and the crucible mouth end is big.

Preferably, crucible closing device includes that the symmetry sets up crucible body hold-down mechanism and crucible slitter edge hold-down mechanism in the crucible both sides, crucible body hold-down mechanism I includes: the crucible pot driving mechanism comprises a driving cylinder, a support, a swing rod, a connecting rod, a swing sleeve and a pressing roller, wherein one end of the support is installed on a base workbench, the other end of the support is provided with a swing shaft, one end of the swing rod is connected to the swing shaft through the swing sleeve, the other end of the swing rod is provided with the pressing roller, the cylinder end of the driving cylinder is fixed on the support, the piston end of the driving cylinder is connected to the swing sleeve of the swing rod through the connecting rod, the swing sleeve is sleeved on the swing shaft arranged on the support, and the driving swing sleeve rotates around the swing shaft to drive the swing rod to swing; crucible slitter edge hold-down mechanism II installs on the pendulum shaft of the crucible body hold-down mechanism of installing in one side wherein, include: drive actuating cylinder, pendulum rod, connecting rod, swing cover II and compressing roller, pendulum rod one end is connected on the oscillating axle of pendulum rod I through the swing cover, and the compressing roller II is connected to the other end, drives the swing cover and rotates around the oscillating axle through driving actuating cylinder drive pendulum rod swing, compresses tightly the crucible slitter edge.

Preferably, the axial positioning device comprises a mounting seat, an adjusting hand wheel, a stand column, a clamping block and an axial distance rod, the mounting seat is fixed on the base platform and located at one end of the bottom of the crucible, the stand column is arranged in parallel with the mounting seat, a rack is arranged on one side of the stand column, the adjusting hand wheel is arranged on the mounting seat, a gear matched with the rack for transmission is mounted on an adjusting hand wheel shaft, two symmetrical fixing grooves are formed in the mounting seat, the stand column and the mounting seat are fixed in the fixing grooves through locking screws after the height of the stand column is adjusted, the clamping block is arranged at the top of the stand column, the axial distance rod is arranged in the clamping block, and the clamping block is locked through a clamping knob after the positioning length of the axial distance.

The invention has the beneficial effects that:

1. According to the invention, the grinding wheel cutting and chamfering device, the crucible rotation driving radial positioning device, the crucible pressing device and the axial positioning device are mutually matched and cooperate, so that during processing, a crucible is not required to be aligned, the crucible is placed on the two horizontal driving rollers, the outer bus of the crucible is tightly attached to the crucible to rotate and drive the two driving rollers of the radial positioning device, the bottom end of the crucible is in contact positioning with the fixed-stroke rod end of the axial positioning device, the crucible pressing device is used for pressing the upper part of the crucible and the upper part of the waste edge, and torque is transmitted through the friction force between the outer surface of the crucible and the horizontal driving rollers and the pressing rollers, so that the crucible rotates along the outer circular track without correction.

2. The chamfering grinding wheel and the cutting grinding wheel of the grinding wheel cutting and chamfering device are arranged on a main shaft, and a spacing pad is arranged between the chamfering grinding wheel and the cutting grinding wheel, so that the cutting and the processing of inner and outer chamfers can be respectively completed. The horizontal sliding mechanism and the vertical sliding mechanism can drive the main shaft to horizontally and vertically move and feed, both the horizontal sliding mechanism and the vertical sliding mechanism adopt rectangular guide rails, the guide rails are made of stainless steel materials, and the corresponding sliding surfaces are embedded plastic guide rails, so that the rigidity is good, the operation precision is high, the wear resistance is good, and the corrosion resistance is high; the motor of the horizontal sliding mechanism adopts a stepless speed regulation servo motor, so that automatic control in the horizontal direction can be realized, and constant cutting speed is ensured; the vertical sliding mechanism adopts a stepless speed regulation servo motor to be connected with a speed reducer, and can realize automatic fast moving and feeding in the vertical direction.

3. The two horizontal driving rollers of the crucible rotation driving radial positioning device have certain conicity, and the diameter of the roller positioned at the opening end of the crucible is larger, so that the crucible is kept not to move axially under the combined action of the driving rollers with the conicity and the axial positioning device during processing.

4. The crucible pressing device adopts a swing rod type and is realized by driving of the air cylinder. Crucible closing device includes the crucible body and slitter edge closing device, and the slitter edge after the processing is compressed tightly through slitter edge pinch roller with the crucible on horizontal drive roller, and the slitter edge after cutting off still rotates simultaneously along with the crucible before not falling down, shuts down the back, loosens slitter edge pinch roller, and after the manual work took off the slitter edge, the automatic interior outer chamfer that carries on the crucible body. According to the invention, the energy accumulator is connected to the gas source pipeline of the cylinder, so that when power is cut off suddenly, the normal work of the cylinder can be ensured, and the pressing roller is still in a state of pressing the crucible and the waste edge, thereby ensuring safety and reliability.

5. The semi-protective cover is arranged, so that loading and unloading of the crucible can be conveniently carried out through the crane in the space above the machine tool, and the crucible can be conveniently clamped, and the labor is saved.

6. The invention adopts digital control, and the cutting speed, the fast moving speed and the feeding speed of the numerical control cutting machine can be adjusted within a certain range to obtain the optimal working speed, realize automatic edge cutting and internal and external chamfering, complete workpiece processing and ensure the precision and consistency of the workpiece. The saw blade cutting grinding wheel and the angle chamfering grinding wheel can automatically perform linear feeding to complete machining, and can also perform interpolation machining through horizontal feeding and vertical feeding of a numerical control system, so that the chamfering can be performed by using a disc type arc grinding wheel, the chamfering is more flexible, and the grinding wheel is more durable. The machine can carry out automatic processing circulation, has compact structure, simple operation, high automation degree, high processing efficiency, low labor intensity and safe and reliable use, and is indispensable and good equipment for producing and manufacturing quartz crucibles.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a left side view of fig. 1.

Fig. 4 is a schematic structural diagram of the grinding wheel chamfering and cutting device in fig. 1.

Fig. 5 is a left side view of fig. 4.

Fig. 6 is a top view of fig. 4.

FIG. 7 is a schematic view of the structure of the crucible rotation-driven radial positioning device.

Fig. 8 is a left side view of fig. 7.

FIG. 9 is a schematic view of the gearbox of FIG. 7.

FIG. 10 is a side view schematically showing the structure of the crucible pressing device of FIG. 1.

3 fig. 3 11 3 is 3 a 3 schematic 3 sectional 3 view 3 a 3- 3 a 3 of 3 fig. 3 10 3. 3

Fig. 12 is a schematic sectional view B-B of fig. 10.

FIG. 13 is another schematic view of the crucible pressing device of FIG. 1.

FIG. 14 is a schematic cross-sectional view C-C of FIG. 13.

FIG. 15 is a pneumatic schematic diagram of the crucible hold-down device.

Fig. 16 is a schematic structural view of the axial positioning device in fig. 1.

Fig. 17 is a left side view of fig. 16.

Fig. 18 is a right side view of fig. 16.

In the figure: 1. a base seat is arranged on the base seat,

2. The grinding wheel cutting and chamfering device comprises a grinding wheel cutting and chamfering device, 21, a chamfering grinding wheel, 22, a cutting grinding wheel, 23, a grinding wheel rotating mechanism, 231, a main shaft, 232, a shaft sleeve, 233, a locking sleeve, 234, a stepless speed regulating motor I, 24, a horizontal sliding mechanism, 241, a horizontal rectangular guide rail, 242, a horizontal sliding seat, 243, a horizontal servo motor, 25, a vertical sliding mechanism, 251, a vertical servo motor, 252, a speed reducer, 253, a vertical rectangular guide rail and 26 spacing gaskets;

3. The crucible pressing device comprises a crucible pressing device 31, a crucible body pressing mechanism 311, driving cylinders I, 312, supports I, 313, swing rods I, 314, connecting rods I, 315, swing sleeves I, 316, pressing rollers I, 317, swing shafts 318, driving cylinders I', 32, a crucible waste edge pressing mechanism 321, driving cylinders II, 322, connecting rods II, 323, swing sleeves II, 324, swing rods II, 325 and pressing rollers II; 331-333 electromagnetic directional valves, 34 stop valves, 35 accumulators, 36 one-way valves, 37 pneumatic triple parts, 381-383 silencers;

4. The crucible rotates to drive the radial positioning device, 41, stepless speed regulating motors II, 42, a gear box, 43, a driving roller, 431, a roller shaft, 432, a roller, 433, a bearing seat, 434, an end roller, 435, a gear and 436, a transmission shaft;

5. The device comprises an axial positioning device, a mounting seat 51, an adjusting hand wheel 52, a stand column 53, a clamping block 54, an axial fixed-distance rod 55, a rack 56, a gear 57, a fixing groove 58, a locking screw 59 and a clamping knob 510;

6. Protective cover, 7 sliding door, 8 crucible, 81 slitter edge.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

Example (b): the invention relates to a quartz crucible cutting and chamfering machine, which comprises a base 1, a grinding wheel cutting and chamfering device 2 arranged on the base 1, a crucible rotation driving radial positioning device 4, a crucible pressing device 3 and an axial positioning device 5,

The grinding wheel cutting and chamfering device 2 is positioned on one side of the port of the crucible 8 to be processed and used for cutting the waste edge 81 at the port of the crucible 8;

The crucible rotates and drives the radial positioning device 4, the driving roller end of the radial positioning device is arranged at the bottom of the crucible 8 to be processed, and the crucible 8 is driven to rotate;

The crucible pressing device 3 is positioned at two sides of the crucible 8 to be processed, and when the crucible pressing device works, the upper pressing roller I is pressed on pot bodies at two sides of the crucible 8 to be processed, and the pressing roller II is pressed on a port waste edge 81 of the crucible 8 to be processed;

The axial positioning device 5 is positioned at one end for placing the bottom of the crucible 8 to be processed, and the end part of the axial positioning rod 55 on the axial positioning device is contacted with the middle part of the crucible bottom of the crucible 8 to be processed to axially position the crucible 8;

As shown in fig. 4-6, the grinding wheel cutting and chamfering device 2 comprises a horizontal sliding mechanism 24, a vertical sliding mechanism 25, a grinding wheel rotating mechanism 23, a chamfering grinding wheel 21 and a cutting grinding wheel 22, wherein the chamfering grinding wheel 21 and the cutting grinding wheel 22 are coaxially mounted at one end of the grinding wheel rotating mechanism 23 corresponding to the port of the crucible 8, the grinding wheel rotating mechanism 23 is mounted on a vertical slide seat of the vertical sliding mechanism 25, and the vertical sliding mechanism 25 is connected to the workbench of the base 1 through the horizontal sliding mechanism 24.

The grinding wheel rotating mechanism 23 comprises a main shaft 231, a main shaft sleeve 232, a coupler and a stepless speed regulating motor I234, wherein the main shaft 231 is installed in the main shaft sleeve 232, one end of the main shaft 231 is connected with a rotating shaft of the stepless speed regulating motor I234 through a coupler, and the other end of the main shaft 231 is provided with a chamfering grinding wheel 21 and a cutting grinding wheel 22 to form a main shaft assembly; the spindle assembly is arranged in a clamping sleeve 233 on the vertical sliding seat 25, and one side of the clamping sleeve 233 is provided with an opening for clamping the spindle assembly; after the length of the main shaft assembly is adjusted, the main shaft assembly is locked by a clamping screw.

And a spacing gasket 26 is arranged between the chamfering grinding wheel 21 and the cutting grinding wheel 22 to form a grinding head. The chamfering grinding wheel 21 is fully utilized, the chamfering grinding wheel 21 is a 45-degree grinding wheel, and the whole course of the cutting edge can participate in chamfering.

The horizontal sliding mechanism 24 comprises a horizontal rectangular guide rail 241, a horizontal sliding seat 242 and a horizontal servo motor 243, wherein the horizontal sliding seat 242 and the horizontal servo motor 243 are matched with the horizontal rectangular guide rail 241 to slide, the horizontal rectangular guide rail 241 is installed on the base 1, the horizontal sliding seat 242 is connected with the horizontal servo motor 243 through a screw and nut pair, and the horizontal sliding seat 242 is driven by the horizontal servo motor 243 to drive the vertical sliding mechanism 25 to slide along the horizontal rectangular guide rail 241.

The vertical sliding mechanism 25 comprises a vertical servo motor 251, a speed reducer 252, a screw nut, a vertical rectangular guide rail 253 and a vertical sliding seat, wherein the vertical servo motor 251 is connected with the screw through the speed reducer 252, the screw nut which is connected with the screw in a matching way is arranged on the vertical sliding seat, the screw is parallel to the vertical rectangular guide rail 253, and the vertical rectangular guide rail 253 is arranged on the horizontal sliding seat 242; the vertical sliding seat is provided with a locking sleeve 233 for mounting a main shaft assembly of the grinding wheel rotating mechanism 23, and the reducer 252 in the embodiment adopts an RV reducer 252 which has small volume, light weight, large speed ratio and self-locking function.

The horizontal rectangular guide rail 241 and the vertical rectangular guide rail 253 are both of the existing structure, the convex guide rail is made of stainless steel material, and the concave guide rail matched with the convex guide rail is a plastic embedded guide rail. Has better lubricating property, wear resistance and corrosion resistance.

The grinding wheel rotating mechanism 23, the horizontal sliding mechanism 24 and the vertical sliding mechanism 25 enable the cutting grinding wheel 22 to obtain accurate cutting position, cutting speed and fast moving speed, and the horizontal servo motor 243 and the vertical servo motor 251 can adjust the speed steplessly for providing different feeding speeds and fast moving speeds; the vertical servo motor 251 drives the vertical sliding seat and the grinding spindle through the RV reducer 252 and the vertical screw nut pair, so that fast moving and cutting feeding of cutting and chamfering are achieved.

As shown in fig. 7-9, the crucible rotation driving radial positioning device 4 comprises a stepless speed regulating motor ii 41, a gear box 42 and two driving rollers 43, wherein an output shaft end of the stepless speed regulating motor ii 41 is connected with the gear box 42, the gear box 42 is symmetrically connected with the two driving rollers 43 which rotate in the same direction, and when the crucible rotation driving device works, the two driving rollers 43 are in contact with the outer wall of the crucible 8 to drive the crucible 8 to rotate.

The driving roller 43 comprises a roller shaft 431 and roller wheels 432 arranged on the roller shaft 431 at intervals, the roller shaft 431 is installed on the base 1 through a bearing seat 433, one end of the roller shaft 431 is connected to an output gear of the gear box 42, the other end of the roller shaft 431 is provided with a plurality of roller wheels 432, and the interval between the adjacent roller wheels 432 is a blank cutter gap, in the embodiment, 45mm is adopted, so that a crucible bus can be better contacted with the driving roller 43; the distance between the centers of the two drive rollers 43 is less than the outer diameter of the crucible 8 to be processed, which in this case is set to 540mm, to accommodate the processing of 22-36 inch size workpieces. In operation, end roller 434 supports the scrap at the end of crucible 8, in this example crucible 8 is spaced 100mm from the roller end. The rollers 432 and the end rollers 434 of the driving rollers 43 are rubber rollers or rubber sleeves or flexible material layers on the outer layers, in order to prevent the crucible from axially moving towards the end in the cutting process, the two driving rollers 43 are provided with a taper of 1:1000, the taper is small when being close to the bottom end of the crucible 8, and the opening end of the crucible 8 is large, so that when the crucible 8 rotates to axially deviate in processing, the crucible is kept from axially moving under the combined action of the driving rollers with the taper and the axial positioning device.

Because the crucible work piece specification of this application processing is different, so the revolution of crucible work piece is also different, for obtaining better work piece revolution to obtain sufficient torque, drive gear box 42 through stepless speed control motor II 41 and reduce the speed and move, make two drive rollers 43 drive the crucible work piece rotatory.

As shown in fig. 1, 10-14, the crucible pressing device 3 comprises a body pressing mechanism 31 and a crucible scrap edge pressing mechanism 32 which are symmetrically arranged at both sides of the crucible, the crucible body pressing mechanism 31 comprises a driving cylinder I311, a support I312, a swing rod I313, a connecting rod I314, a swing sleeve I315 and a pressing roller I316, one end of the support I312 is installed on a workbench of the base 1, the other end of the support I312 is provided with a swing shaft 317, one end of a swing rod I313 is connected to the swing shaft 317 through a swing sleeve I315 on the swing rod I, the other end of the swing rod I313 is provided with a pressing roller I316, a cylinder body end of a driving cylinder I311 is fixed on the support I312, a piston end is connected to the swing sleeve I315 of the swing rod I313 through a connecting rod I314, the swinging sleeve I315 is sleeved on a swinging shaft 317 arranged on the support I312, the swinging sleeve I315 is driven to rotate around the swinging shaft 317, the swinging rod I313 is driven to swing, and the pressing roller I316 is driven to press or open the crucible body of the crucible 8; the crucible waste edge pressing mechanism 32 is arranged on the swinging shaft 317 of the crucible body pressing mechanism 31 on one side of the crucible body pressing mechanism and comprises a driving cylinder II 321, a swinging rod II 324, a connecting rod II 322, a swinging sleeve II 323 and a pressing roller II 325, one end of the swinging rod II 324 is connected to the swinging shaft 317 of the swinging rod I313 through the swinging sleeve II 323, the other end of the swinging rod II 324 is connected to the pressing roller II 325, the swinging sleeve II 323 is driven to rotate around the swinging shaft 317 through the driving cylinder II 321, the swinging rod II 324 is driven to swing, and the pressing roller II 325 is driven to press or open the waste edge of the crucible 8.

As shown in fig. 15, a driving cylinder i 311, a driving cylinder i' 318 and a driving cylinder ii 321 of the two-side body pressing mechanism 31 are respectively connected with electromagnetic directional valves 331-333, the three electromagnetic directional valves are connected in parallel with one end of a stop valve 34, and the other end of the stop valve 34 is sequentially connected with an energy accumulator 35, a one-way valve 36, a pneumatic triple 37 and a gas source 38; the electromagnetic directional valves 331-333 are respectively connected with the electric control box, and the reversing action of the electromagnetic directional valves is controlled by the electric control box. The electromagnetic directional valves 331-333, the stop valve 34, the energy accumulator 35 and the pneumatic triple piece 36 are all purchased parts; the air source is air.

The rotation of crucible 8 is realized by the friction force between crucible 8 and drive roller 43, and pinch roller I316 and drive cylinder I are the main components providing the friction force between crucible 8 and drive roller 43. And the pressing roller II 325 is used for pressing the slitter edge, stopping the machine after the slitter edge is cut off, taking out the slitter edge, and then carrying out the next process. And the waste edge is prevented from cracking and falling in the cutting process to damage the cutting surface of the crucible body.

As shown in fig. 15-17, the axial positioning device 5 is provided to accommodate the axial length of crucible workpieces of different sizes. The horizontal and vertical positions of the stopper rod 55 are adjusted according to the axial length of the crucible, and the stopper rod is locked. Including mount pad 51, adjustment hand wheel 52, stand 53, clamp tight piece 54 and axial distance rod 55, mount pad 51 is fixed on base 1 platform, is located the one end of placing crucible 8 bottom, and stand 53 sets up with mount pad 1 side by side, stand 53 one side has rack 57, is equipped with adjustment hand wheel 52 on the mount pad 51, adjustment hand wheel 52 epaxial install with rack 56 cooperation driven gear 57, it has the fixed slot 58 of bisymmetry to open on mount pad 51, after adjustment stand 53 is high, through locking screw 59 fixed stand 53 and mount pad 51 in fixed slot 58, set up at the top of stand 53 and press from both sides tight piece 54, set up axial distance rod 55 in pressing from both sides tight piece 54, through pressing from both sides tight knob 510 locking clamp tight piece 54 after adjustment axial distance rod 55 location length.

The application is also provided with a cooling device which is fixed on the base 1, a conventional water cooling system of the machine tool is adopted, and the water source of the conventional water cooling system is a tap water supply system, namely, the outlet of a water pipe is positioned above the chamfering grinding wheel 21 and the cutting grinding wheel 22. In the embodiment, an electric stop valve can be arranged on the cooling water pipe, and the signal end of the electric stop valve is connected with an electric control box to automatically control the start and stop of the electric control box.

The electric cabinet is arranged outside the machine tool and is respectively connected with the stepless speed regulating motor I234 of the grinding wheel rotating mechanism 23 in the grinding wheel cutting and chamfering device 2, the horizontal servo motor 243 of the horizontal sliding mechanism 24, the vertical servo motor 251 of the vertical sliding mechanism 25 and the stepless speed regulating motor II 41 of the crucible rotation driving radial positioning device 4, so as to provide power for the stepless speed regulating motor I234, the horizontal servo motor 243 and the vertical servo motor II.

This application still is provided with half protection casing around base 1 top, adopts the stainless steel protection casing, and is pleasing to the eye, and the protecting effect is good, and is succinct, convenient operation.

The crucible cutting machine is generally in a horizontal layout. I.e. the base 1 is fixed horizontally on the foundation. When in use, the crucible 8 to be processed is lifted by a soft belt and is placed on the two driving rollers 43, the end opening of the crucible is close to the grinding head end, the axial position of the crucible 8 is adjusted and positioned by the axial positioning device 5, so that the fixed-distance rod 55 is aligned with the rotation center of the crucible 8, then the body of the crucible 8 is pressed by two pressing rolls I316 of the body pressing mechanism 31 of the crucible pressing device 3, meanwhile, the waste edge part is pressed tightly by a pressing roller II 325 of the crucible waste edge pressing mechanism 32, the hanging strip is drawn out, the grinding head end of the grinding wheel rotating mechanism 23 is quickly moved to the position to be cut of the inner cavity of the crucible 8 through the horizontal sliding mechanism 24, cooling water is started, the main shaft 231 is driven by the vertical sliding mechanism 25 and the stepless speed regulating motor I234 to drive the rotary cutting-off grinding wheel 22 to cut off the waste edge downwards, after the waste edge is cut off completely, the grinding head is withdrawn, the machine is stopped, the waste edge compression roller II 325 is opened, and the waste edge is taken out. And quickly moving the grinding head to the inner notch of the workpiece, chamfering the inner edge through the chamfering grinding wheel 21, then moving the grinding head to the outer notch, and chamfering the outer angle through the chamfering grinding wheel 21. And finally, returning the grinding head to the tool lifting point. And opening the two pressing rollers I316, penetrating the hanging belts, and hanging the processed crucible 8 away to finish a processing cycle.

The working cycle can adopt the prior art to carry out numerical control programming and realize automatic processing.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims

1. A quartz crucible cuts off chamfering machine which characterized in that: comprises a base, a grinding wheel cutting and chamfering device arranged on the base, a crucible rotation driving radial positioning device, a crucible pressing device and an axial positioning device,

2. The quartz crucible cutting and chamfering machine according to claim 1, wherein: the grinding wheel cutting and chamfering device comprises a horizontal sliding mechanism, a vertical sliding mechanism, a grinding wheel rotating mechanism, a chamfering grinding wheel and a cutting grinding wheel, wherein the chamfering grinding wheel and the cutting grinding wheel are coaxially arranged at one end of the grinding wheel rotating mechanism, which corresponds to a crucible port, the grinding wheel rotating mechanism is arranged on a vertical sliding seat of the vertical sliding mechanism, and the vertical sliding mechanism is arranged on a base through the horizontal sliding mechanism.

3. The quartz crucible cutting and chamfering machine according to claim 2, wherein: the grinding wheel rotating mechanism comprises a main shaft, a main shaft sleeve, a coupler and a stepless speed regulating motor I, wherein the main shaft is arranged in the main shaft sleeve, one end of the main shaft is connected with a stepless speed regulating motor shaft through a coupler, and the other end of the main shaft is provided with a chamfering grinding wheel and a cutting grinding wheel to form a main shaft assembly; the main shaft assembly is arranged in a clamping sleeve on the vertical sliding seat, and is locked by a clamping screw after the length of the main shaft assembly is adjusted.

4. The quartz crucible cutting and chamfering machine according to claim 2, wherein: and a spacing gasket is arranged between the chamfering grinding wheel and the cutting grinding wheel.

5. The quartz crucible cutting and chamfering machine according to claim 2, wherein: the horizontal sliding mechanism comprises a horizontal rectangular guide rail, a horizontal sliding seat and a horizontal servo motor, the horizontal rectangular guide rail is arranged on the base, the horizontal sliding seat is connected with the horizontal servo motor through a screw rod and nut pair and a coupler, and the horizontal sliding seat is driven by the horizontal servo motor to drive the vertical sliding mechanism to slide along the horizontal rectangular guide rail; the convex guide rail of the horizontal rectangular guide rail is a stainless steel guide rail, and the concave guide rail matched with the stainless steel guide rail is a plastic embedded guide rail.

6. The quartz crucible cutting and chamfering machine according to claim 2, wherein: the vertical sliding mechanism comprises a servo motor, a speed reducer, a screw rod and a screw nut and a vertical sliding seat, the servo motor is connected with the screw rod through the speed reducer, the screw nut which is connected with the screw rod in a matched mode is installed on the vertical sliding seat, the screw rod is parallel to a vertical rectangular guide rail, and the vertical rectangular guide rail is arranged on the horizontal sliding seat; and a locking sleeve for mounting a main shaft assembly of the grinding wheel rotating mechanism is arranged on the vertical sliding seat, a convex guide rail of the vertical rectangular guide rail is a stainless steel guide rail, and a concave guide rail matched with the stainless steel guide rail is a plastic embedded guide rail.

7. The quartz crucible cutting and chamfering machine according to claim 1, wherein: the crucible rotation driving radial positioning device comprises a stepless speed regulating motor II and a gear box and two driving rollers, wherein the output shaft end of the stepless speed regulating motor II is connected with the gear box, the gear box is symmetrically connected with the two driving rollers rotating in the same direction, and when the crucible rotation driving device works, the two driving rollers are in contact with the outer wall of the crucible to realize radial positioning and drive the crucible to rotate through friction.

8. The quartz crucible cutting and chamfering machine according to claim 1, wherein: the drive roller includes that roller and interval set up the running roller on the roller, the roller passes through the bearing frame to be installed on the base, and roller one end is connected on the output gear of gear box, and a plurality of running rollers are installed to the other end, and the interval between adjacent running roller is for the dead knife clearance, and two drive rollers have the tapering, and it is little to be close to the crucible bottom, and crucible mouth end is held greatly.

9. The quartz crucible cutting and chamfering machine according to claim 1, wherein: crucible closing device includes that the symmetry sets up crucible body hold-down mechanism and crucible slitter edge hold-down mechanism in the crucible both sides, crucible body hold-down mechanism I includes: the crucible pot driving mechanism comprises a driving cylinder, a support, a swing rod, a connecting rod, a swing sleeve and a pressing roller, wherein one end of the support is installed on a base workbench, the other end of the support is provided with a swing shaft, one end of the swing rod is connected to the swing shaft through the swing sleeve, the other end of the swing rod is provided with the pressing roller, the cylinder end of the driving cylinder is fixed on the support, the piston end of the driving cylinder is connected to the swing sleeve of the swing rod through the connecting rod, the swing sleeve is sleeved on the swing shaft arranged on the support, and the driving swing sleeve rotates around the swing shaft to drive the swing rod to swing; crucible slitter edge hold-down mechanism II installs on the crucible body hold-down mechanism's of one side wherein the oscillating axle, include: drive actuating cylinder, pendulum rod, connecting rod, swing cover II and compressing roller, pendulum rod one end is connected on the oscillating axle of pendulum rod I through the swing cover, and the compressing roller II is connected to the other end, drives the swing cover and rotates around the oscillating axle through driving actuating cylinder drive pendulum rod swing, compresses tightly the crucible slitter edge.

10. The quartz crucible cutting and chamfering machine according to claim 1, wherein: the axial positioning device comprises a mounting seat, an adjusting hand wheel, a stand column, a clamping block and an axial positioning rod, wherein the mounting seat is fixed on a base platform and is located at one end of the bottom of a crucible, the stand column and the mounting seat are arranged side by side, a rack is arranged on one side of the stand column, the adjusting hand wheel is arranged on the mounting seat, a gear matched with the rack for transmission is installed on an adjusting hand wheel shaft, two symmetrical fixing grooves are formed in the mounting seat, the stand column and the mounting seat are fixed in the fixing grooves through locking screws after the height of the stand column is adjusted, the clamping block is arranged at the top of the stand column, the axial positioning rod is arranged in the clamping block, and the clamping block is locked through a clamping knob after the positioning length.