CN106078510B - A kind of grinding machine with on-line measurement function - Google Patents
A kind of grinding machine with on-line measurement function Download PDFInfo
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- CN106078510B CN106078510B CN201610599801.3A CN201610599801A CN106078510B CN 106078510 B CN106078510 B CN 106078510B CN 201610599801 A CN201610599801 A CN 201610599801A CN 106078510 B CN106078510 B CN 106078510B
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- grinding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
- B24B49/045—Specially adapted gauging instruments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
Abstract
The invention discloses a kind of grinding machines with on-line measurement function, it is characterized in that, it includes the constant force griding system of rack, control system, chuck, Grinder bench and the wheel grinding mechanism being arranged thereon for fixing workpiece being arranged in rack, on-line measurement system, driving wheel grinding mechanism and on-line measurement system movement；Control system connection control wheel grinding mechanism, on-line measurement system, constant force griding system；The on-line measurement system is using the synchronous on-line measurement mode of point contact type, including servo-control system, the on-line measurement supporting mechanism being arranged on Grinder bench, on-line measurement ruler, the measurement process and process real-time synchronization of on-line measurement ruler.The configuration of the present invention is simple, easy to use, machining accuracy is high, and stability is good, and compared to the product of same type, high production efficiency, performance is more superior.
Description
Technical field
The present invention relates to grinding machine technical fields, more particularly, to a kind of grinding machine with on-line measurement function.
Background technique
China's Cemented Carbide Industry is developed so far, and product variety is substantially complete, is related to metal cutting, mining, drawing
Part high-performance precision abrasive coating blade and supporting tool, high-performance superfine alloy are removed in each fields such as molding tool, wear part
Bar and a small amount of big different product need to be outside external imports, and most product China can produce.The hard carbide industry in China
While fast development, the horizontal not high, alloy that renovates of research and development of products input relative deficiency, equipment is still remained
The problem of production and equipment production disconnection of product etc., lead to not strong industry innovation ability, high added value and mating production
The problems such as product are few, industrial economy benefit is not high.Wherein the development deficiency of hart metal product production equipment is to restrict China's hard
The bottleneck of alloy product production.According to ASSOCIATE STATISTICS, a small number of advanced enterprises products external at present are pressed in the occupation rate of Chinese market
Weight is calculated less than the 1.5% of Chinese hard alloy yield, but year alloy gross sales amount accounts for Chinese hard alloy year sale always
10% or more of volume.As demand of the domestic industries to alloy cutter increases, the Precision Machining of alloy cutter, which becomes, is closed
The bottleneck of golden production Rapid Development of Enterprise, it is few that the current country specializes in alloy Special Purpose Machine for Processing enterprise, therefore alloy
There is an urgent need to undergo technological transformation to some processing apparatus for cutter manufacturing enterprise.
By on-site test, China's alloy cutter production lathe situation is as follows at present:
1, lathe is longer using the time, and there are certain agings for equipment；
2, it is W-Co kind carbide wafer that lathe, which grinds workpiece, and working environment dust pollution is larger；
3, during the work time, there are certain cooling water corrosions, and generating certain precision to work spindle influences, simultaneously
Because being used for a long time, work spindle gyration aperture becomes larger, and influences machining accuracy；
4, machine operation worker scene is in use, there are the following problems:
(1), when worker carries out alloy blade grinding, the visible obvious alloy dust fugitive dust in scene, working environment dust pollution
It is larger, while dust is unfavorable to worker's health；
(2), when worker's fixturing blade, using working method is not shut down, grinding wheel is in high-speed cruising state, worker's hand at this time
Refer to and be very close to (eye estimate about 5cm or so) with grinding wheel, there are severe compromises；
(3), it when carrying out grinding work, needs skilled worker's grinder to operate, carries out full handwork, large labor intensity；
(4), when detecting to workpiece, need to tear open workpiece sensing, single workpiece is from starting to grind to completing the process, midway
The experience of worker need to be regarded, progress repeatedly disassembles detection, and processing efficiency is extremely low, easily causes work pieces process excessive, causes workpiece report
It is useless, it is high to the operation level requirement of operator.
Wherein, described (4) a problem is also exactly most common off-line measurement side in traditional machining detection process
Formula, concrete operations are to be shut down lathe according to need of work according to the experience of operator in the process of part,
Using measuring instrument, in the state that workpieces processing is disassembled or is not disassembled, the detection of physical quantity is carried out to workpiece.The detection mode
It is built upon processing and on the basis of detection is separated from each other, processing when not can be carried out product testing, and detection when cannot
Product processing is carried out, causes production efficiency low, simultaneously as the multiple disassembly of workpiece and clamping, make the Set and Positioning base of workpiece
Standard constantly changes, and causes the mismachining tolerance of workpiece artificially to increase, influences product quality.
Therefore, in order to guarantee the quality of machine tooling part, greatly improve production efficiency, reduce production cost, implement plus
Work measures integrated line Measurement Technique, is of great significance.Wherein, the on-line measurement refers in the processed of part
Cheng Zhong does not tear workpiece open by directly or indirectly measurement method and carries out Quality Detection.It is divided into 2 kinds of situations:
1, the machining accuracy of measuring part direct real-time measurement part in the process of part, the process of part
It is synchronous with detection process；
2, process and detection process separation do not tear workpiece open after step process completion or part completion of processing, measure
Mechanism detects part, and processing is nonsynchronous with measurement.
But the measurement scheme used on grinding machine at present is mostly undesirable, has and estimates sand using modes such as simulation calculating
The waste in grinding process is taken turns, then is included in grinding machine data system, such design is built upon to abrasion of grinding wheel according to one
It is more in the influence factor of practical grinding process on the basis of set pattern rule, therefore cannot give preferably reflecting true grinding situation,
Therefore scheme practical application is unsatisfactory.
Summary of the invention
The object of the invention is to be not only simple in structure for the one kind for solving the deficiency of the prior art and providing, measurement essence
Standard can be improved the grinding machine with on-line measurement function of product quality and production efficiency.
The present invention is that a kind of grinding with on-line measurement function is attained in that using following technical solution
Lathe, which is characterized in that it include rack, control system, be arranged in rack for fixing chuck, the Grinder bench of workpiece
And the perseverance that wheel grinding mechanism, on-line measurement system, driving wheel grinding mechanism and the on-line measurement system being arranged thereon act
Power grinding system；Control system connection control wheel grinding mechanism, on-line measurement system, constant force griding system；
The on-line measurement system is existed using the synchronous on-line measurement mode of point contact type, including servo-control system, setting
On-line measurement supporting mechanism, on-line measurement ruler on Grinder bench, the measurement process and process of on-line measurement ruler are real-time
It is synchronous, that is, when measuring, do not need to shut down detection；
The constant force griding system includes servo motor, synchronous transmission mechanism is gentle pushes back unloading device, the servo motor
For permanent torque servo motor, permanent torque servo motor is constantly fed power by what synchronous transmission mechanism transmission was converted to workbench,
It is ground wheel grinding mechanism to workpiece end face, in entire grinding process, active force between the two is invariable, when
After size as defined in being ground to, on-line measurement system sending signal, workbench feed-disabling, under control of the control system, gas
It pushes back unloading device and realizes that the horizontal operation of workbench is retracted, after reaching defined position, workbench stop motion, worker removes work
Part completes the processing of a workpiece；If the circular knife diameter of processing changes, the selection being arranged by regulation and control system
Switch, selects torque of corresponding size.
As a further illustration of the above scheme, the on-line measurement ruler includes measuring scale, measurement ruler end part is arranged in
The driving cylinder that measuring probe and driving measuring scale are displaced in the horizontal direction in, measuring probe measure component, detection pair as point contact
The axial dimension variable quantity of elephant；
On-line measurement supporting mechanism includes fore bearing bearing corresponding with measuring scale, rear bearing bearing, and Grinder bench is surveyed
Gage is supported by fore bearing, rear bearing support movable is arranged on Grinder bench, and driving cylinder pushes measuring scale along grinding machine work
Make platform horizontal direction and generate displacement, is contacted so that measuring probe be pushed to generate surface with measured workpiece, realize measurement process.
Further, the front end of the on-line measurement ruler is provided with that size is adaptive and grinding status stabilizing mechanism, size
Adaptive and grinding status stabilizing mechanism includes the elasticity pressure being arranged in matrix and at least three screw holes being arranged thereon, screw hole
Head, matrix is provided with jointing holes corresponding with on-line measurement ruler, before can securing it within on-line measurement ruler by Outer screw
End.
Further, the compensating squeeze head includes alloy pressure head, the headless screw being threadedly coupled with screw hole, is connected to alloy
Spring between pressure head and headless screw, one end of alloy pressure head pass through screw hole and extend outward, and headless screw passes through spring compression
Alloy pressure head, each point of application alloy pressure head on matrix is directly contacted with workpiece end face, to guarantee that workpiece is being ground
It is in stable grinding status in the process.
Further, servo-control system includes the servo mechanism connecting with servo motor, position signal processing module, position
Signal processing module is set to connect with servo mechanism；Position signal processing module is obtained and the contact surface of workpiece by measuring probe
Physical location measuring signal, and it is compared with target position signal judges whether processing in place, if it is undressed in place if
It issues signal and sends servo mechanism to, servo mechanism issues constant force voltage signal to servo motor according to undressed signal in place
Device after servo motor device receives constant force voltage signal, drives Grinder bench feeding processing；So circulation, until workpiece
It is ground to target size, side stops processing.
Further, it is provided with screw micrometer outside measuring scale, the displacement stroke of measuring scale is limited by screw micrometer
System.
Further, the rear sleeve of the measuring scale is equipped with linkage and embraces ring, and the piston rod front end of driving cylinder is provided with connection
End, the connection end are embraced ring with linkage and are connect.
Further, the servo motor is inertia motor TSB13102A, is connected on servo motor matched
Servo-driver TSTA30C.
Further, synchronous transmission mechanism includes: driving wheel and driving belt, is equipped with double wedge on the surface of driving wheel,
Transmission belt is equipped with the groove engaged with double wedge.
Further, the air pressure rollback device includes: power device, pipeline, control device and executive component,
The power device is used to be converted to the mechanical energy of prime mover the pressure energy of working media；
The piping connection serves as the runner of working media between power device and executive component；
The control device is installed on the pipeline, for controlling flow direction, pressure and the flow of working media；In pipeline
It is equipped with working media storage bin and working media filter；
The executive component is used to the pressure energy of working media being converted to mechanical energy, exports under the action of working media
Power and movement, to drive working table movement.
The working media is air, and the power device is air compressor machine, and the executive component is cylinder.
The working media is hydraulic oil, and the power device is hydraulic press, and the executive component is hydraulic cylinder.
The present invention is using the above-mentioned attainable beneficial effect of technical solution:
1, the present invention uses point contact type on-line synchronous measurement method, to the axial dimension physics in the grinding process of workpiece
Amount carries out real-time online measuring, and measurement process has the characteristics that controllable in real time, measurement accuracy is high, stability is good, and designs adaptive
Stabilizing mechanism is answered, ensure that complete machine equipment can adapt to automatically workpiece size variation in the state of unmanned intervene while control workpiece
Grinding operating attitude, preferably control the grinding accuracy and surface quality of product.
2, the present invention in existing grinding because grinding and feeding power it is unstable caused by machine tool drive deformation of chain
Phenomenon, and feeding mode will using the design concept of " constant force griding " by force for the permanent displacement used in numerically control grinder design
Grinding and feeding power is constant constant by unstable specification of variables, and the deformation of machine tool drive chain is made to be in stable state processing matter
It measures: compared with hand feed, being processed with constant force feeding system, processing quality is improved significantly；It is high-efficient: to use
Constant force griding system carries out constant force processing, and production efficiency can be improved 2 times or so；Structure is simple: this system is installed at general-purpose grinder
Upper realization constant force feeding, structure are simple；It is easy to operate: according to the diameter of circular knife, the selection switch in control system being transferred to
Torque of corresponding size.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is on-line measurement system working principle of the invention；
Fig. 3 is on-line measurement system operating pneumatic circuit diagram of the invention；
Fig. 4 is on-line measurement supporting mechanism structural schematic diagram of the invention；
Fig. 5 is that size of the invention is adaptive and grinding status stabilizing mechanism structural schematic diagram；
Fig. 6 is the cross-sectional view of Fig. 5；
Fig. 7 is synchronous transmission mechanism structural schematic diagram of the invention；
Fig. 8 is that grinding wheel crosses center grinding schematic diagram；
Fig. 9 is that carbide wafer is ground stress analysis schematic diagram；
Figure 10 is that grinding stress improves structural schematic diagram；
Figure 11 is the design drawing of stress point；
Figure 12 is the design drawing of stress point.
Description of symbols: 1, rack 2, control system 3, chuck 4, Grinder bench 5, wheel grinding mechanism 5-
1, skive 5-2, electric machine 6, on-line measurement system 6-1, servo-control system 6-11, servo mechanism 6-12,
Position signal processing module 6-2, on-line measurement supporting mechanism 6-21, fore bearing bearing 6-22, rear bearing bearing 6-3,
Line measuring scale 6-31, measuring scale 6-32, measuring probe 6-33, driving cylinder 7, constant force griding system 7-1, servo motor 7-
2, synchronous transmission mechanism 7-21, output shaft 7-22, rack and pinion drive mechanism 7-23, deep groove ball bearing 7-24, gear teeth
Strip transmission mechanism 7-3, air pressure rollback device 8, hard alloy circular knife tooling 9, ball slide rail 10, screw micrometer
11, linkage embraces that a ring 12, connection end 13, size be adaptive and grinding status stabilizing mechanism 13-1, matrix 13-2, screw hole
13-3, compensating squeeze head 13-31, alloy pressure head 13-32, headless screw 13-33, spring 13-4, jointing holes 14, workpiece
15, bowl-type skive 16, carbide wafer 17, tooling plug.
Specific embodiment
As shown in Fig. 1-Fig. 7, the present invention is a kind of grinding machine with on-line measurement function, it includes rack 1, control
What is be arranged in system 2, rack 1 is used to fix the chuck 3, Grinder bench 4 and the wheel grinding mechanism being arranged thereon of workpiece 14
5, the constant force griding system 7 that on-line measurement system 6, driving wheel grinding mechanism and on-line measurement system act；Control system connects
Meet control wheel grinding mechanism, on-line measurement system, constant force griding system；Wheel grinding mechanism 5 include skive 5-1,
The electric machine 5-2 that grinding wheel spindle and connection drive trunnion transfer wheel dynamic is fixed with hard alloy circular knife tooling 8 on chuck.
The on-line measurement system 6 is using the synchronous on-line measurement mode of point contact type, including servo-control system 6-1, sets
Set on-line measurement supporting mechanism 6-2, on-line measurement ruler 6-3 on Grinder bench, the measurement process of on-line measurement ruler with plus
Work process real-time synchronization when measuring, does not need to shut down detection；The constant force griding system 7 includes servo motor 7-1, synchronization
Transmission mechanism 7-2 is gentle to push back unloading device 7-3, and the function of air pressure rollback device has 2: 1, by air pressure valve to pneumatic circuit
Control action generates the feeding resistance of Grinder bench horizontal direction, to control the horizontal movement velocity of Grinder bench；2,
By the effect of either simplex pneumatic cylinder, realize that the work of workbench is retracted, to prepare the grinding of lower 1 workpiece.The servo
Motor 7-1 is permanent torque servo motor, and permanent torque servo motor is converted to the constant of workbench by synchronous transmission mechanism transmission
Centripetal force is ground wheel grinding mechanism to workpiece end face, and in entire grinding process, active force between the two is constant
Constant, after being ground to defined size, on-line measurement system issues signal, workbench feed-disabling, in the electricity of control system
Under the control of device control device, air pressure rollback device realizes that the horizontal operation of workbench is retracted, after reaching defined position, work
Platform stop motion, worker remove workpiece, complete the processing of a workpiece；If the circular knife diameter of processing changes, pass through
The selection switch of regulation and control system setting, selects torque of corresponding size.By the electrical control gear of control system,
According to the size of circular knife, the size of grinding force is adjusted, to expand the grinding range of the special purpose grinder.It is ground by adjusting
The processes such as the corase grinding to workpiece, fine grinding, tarry matter may be implemented in the size of power.
The synchronous transmission mechanism 7-2 uses synchronous belt drive mechanism, and synchronous transmission mechanism includes: driving wheel and transmission skin
Band is equipped with double wedge on the surface of driving wheel, is equipped with the groove engaged with double wedge on the belt.The output of synchronous belt drive mechanism
Axis 7-21 is connected with rack and pinion drive mechanism 7-22, and output shaft is used as by deep groove ball bearing 7-23 and is supported, Grinder bench
Bottom is provided with the ball slide rail 9 that transmission is connect with rack and pinion drive mechanism 7-24.Its total transmission efficiency calculates:
It is looked into " the efficacy probability value of machine driving and friction pair " and determines that the efficiency of transmission mechanisms at different levels is as follows:
Toothed belt transmission: η band=0.97
Deep groove ball bearing: bearing=0.98 η
Rack pinion: tooth=0.97 η
Ball sliding bearing: η sliding=0.98
Then, the overall mechanical efficiency of the transmission mechanism are as follows:
η is total=sliding=0.97 × 0.98 × 0.97 × 0.98=0.903 of η band η bearing η tooth η.
The on-line measurement ruler 6-3 includes measuring scale 6-31, the measuring probe 6-32 that measurement ruler end part is arranged in and driving
The driving cylinder 6-33 that measuring scale is displaced in the horizontal direction in, measuring probe measure component, the axial ruler of test object as point contact
Very little variable quantity；It is provided with screw micrometer 10 outside measuring scale, the displacement stroke of measuring scale is limited by screw micrometer.Measurement
The rear sleeve of ruler is equipped with linkage and embraces ring 11, and the piston rod front end of driving cylinder is provided with connection end 12, the connection end and linkage
Embrace ring connection.
On-line measurement supporting mechanism 6-2 includes fore bearing bearing 6-21 corresponding with measuring scale, rear bearing bearing 6-22, mill
Bed workbench measuring scale is arranged on Grinder bench by fore bearing bearing, rear bearing support movable, and driving cylinder pushes measurement
Ruler generates displacement along Grinder bench horizontal direction, contacts so that measuring probe be pushed to generate surface with measured workpiece, realizes and survey
Amount process.
Further, the front end of the on-line measurement ruler is provided with that size is adaptive and grinding status stabilizing mechanism 13, ruler
Very little adaptive and grinding status stabilizing mechanism includes the bullet being arranged in matrix 13-1 and three screw hole 13-2 being arranged thereon, screw hole
Property pressure head 13-3, matrix are provided with jointing holes 13-4 corresponding with on-line measurement ruler, can be secured it within by Outer screw
The front end of line measuring scale.The headless screw 13- that the compensating squeeze head 13-3 includes alloy pressure head 13-31, is threadedly coupled with screw hole
32, the spring 13-33 being connected between alloy pressure head and headless screw, one end of alloy pressure head pass through screw hole and extend outward, nothing
Head screw passes through spring compression alloy pressure head, and each point of application alloy pressure head on matrix is directly contacted with workpiece end face,
To guarantee workpiece in grinding process in stable grinding status.
Further, servo-control system 6-1 includes the servo mechanism 6-11 connecting with servo motor, position signal processing
Module 6-12, position signal processing module are connect with servo mechanism；Position signal processing module is obtained by measuring probe and work
The physical location measuring signal of the contact surface of part, and it is compared with target position signal, judge whether processing in place, if
The undressed signal that then issues in place sends servo mechanism to, and servo mechanism issues constant force voltage letter according to undressed signal in place
Number give servo motor device, after servo motor device receives constant force voltage signal, drive Grinder bench feeding processing；So follow
Ring, until workpiece is ground to target size, side stops processing.
Further, the servo motor is inertia motor TSB13102A, is connected on servo motor matched
Servo-driver TSTA30C.The air pressure rollback device includes: power device, pipeline, control device and executive component, described
Power device is used to be converted to the mechanical energy of prime mover the pressure energy of working media；The piping connection is in power device and holds
Between units, the runner of working media is served as；Described control device such as solenoid directional control valve, throttle valve etc. is installed on the pipeline,
For controlling flow direction, pressure and the flow of working media；Working media storage bin and working media mistake are equipped on pipeline
Filter；Executive component is used to the pressure energy of working media being converted to mechanical energy, power output and fortune under the action of working media
It is dynamic, to drive working table movement, such as the either simplex cylinder of air pressure rollback device.The working media is air, the power device
For air compressor machine, the executive component is cylinder.It is worth noting that, working media can also use hydraulic oil, the power dress
It is set to hydraulic press, the executive component is hydraulic cylinder.
Compared with prior art, the present invention 1, using point contact type on-line synchronous measurement method, to the grinding process of workpiece
In axial dimension physical quantity carry out real-time online measuring, measurement process has that controllable in real time, measurement accuracy is high, stability is good
Feature.
2, the present invention in existing grinding because grinding and feeding power it is unstable caused by machine tool drive deformation of chain
Phenomenon, and feeding mode will using the design concept of " constant force griding " by force for the permanent displacement used in numerically control grinder design
Grinding and feeding power is constant constant by unstable specification of variables, and the deformation of machine tool drive chain is made to be in stable state processing matter
It measures: compared with hand feed, being processed with constant force feeding system, processing quality is improved significantly；It is high-efficient: to use
Constant force griding system carries out constant force processing, and production efficiency can be improved 2 times or so；Structure is simple: this system is installed at general-purpose grinder
Upper realization constant force feeding, structure are simple；It is easy to operate: according to the diameter of circular knife, the selection switch in control system being transferred to
Torque of corresponding size.
Moreover, it is noted that the present invention has been firstly introduced adaptive stabilizing mechanism in on-line measurement ruler, with the machine
For the carbide wafer that bed is processed, there are following problems to be solved for traditional lathe:
It being required according to user, the outer diameter range spans for the carbide wafer that lathe needs to process are 25-120mm,
Automatic machine tool design is required to adapt to the variation range of the processing dimension；
Traditional lathe is the half fine ginding processing use as carbide wafer.Due to using plain grinding technique that cannot reach
The surface smoothness needed, it is necessary to just be able to satisfy surface quality requirements using cross grinding mode.When bowl-type skive 15
Cross grinding is carried out to carbide wafer 16, is that recruitment cored stick 17 carries out centralized positioning, when bowl-type wheel grinding required
Workpiece centre, as shown in Figure 8.
It is this to cross workpiece centre grinding process and the unfixed floating grinding method in carbide wafer periphery, in workpiece
Under the action of be self-possessed and axially loaded, causing workpiece position in grinding process is in a degree of fluctuation, to influence hard
The processing quality of matter alloy disk.
Above 2 problems, are addressed in the design of this lathe.
As shown in figure 9, by carbide wafer grinding force analysis it is found that carbide wafer is in grinding process axis
To direction stress Fn ', which, for unilateral stress, causes grinding status unstable on disk, this in order to improve
Unilateral force structure can increase stress F in the symmetrical side at the center of mistake, make stability under loading on disk, as shown in Figure 10, increase new
The force structure of carbide wafer can be improved by increasing stress point, stablize the grinding status of disk.But for hard alloy
The outer diameter of disk is only unable to satisfy requirement by increasing single-point in 25-120mm range changing, needs to design at 2 points even 3 points
Newly-increased force structure can be such that grinding status stablizes.
In carbide wafer 25-120mm specification limit, by field test, specification, does not increase within 40mm size
Stress point, grinding status are stablized, reliable product quality, therefore can not need to increase stress point.
For the disk of 40-120mm size range, needing to increase stress point stablizes its grinding status.It is advised in this size
In lattice, the full-size of the internal diameter of disk is Dmax=20mm, and minimum outer diameter is having a size of dmin=40mm, the full-size of outer diameter
For dmax=120mm, the maximum gauge of bowl-type grinding wheel used by a user is dsmax=150mm, as shown in Figure 10, according to this 4
A dimension limit can carry out the distribution design of stress point.
As shown in figure 11.Dash area is minimum stress area determined by carbide wafer in figure, nearest from grinding wheel
2 points of stress (A, B) must in this area, the 3rd point (C) close to outer diameter full-size be dmax=120mm.
According to the design analysis to stress point, designs that carbide wafer size is adaptive and grinding status stablizes machine
Structure, as shown in Figure 5 and Figure 6.The mechanism uses aluminium alloy as matrix, and each point of application uses hard alloy pressure head and disk
Directly contacted；Pressure compaction alloy pressure head is generated using grub screw holddown spring, is that alloy pressure head generates effective pressure
Carbide wafer processed is forced, to guarantee that carbide wafer is guaranteed at stable grinding status in grinding process.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (7)
1. a kind of grinding machine with on-line measurement function, which is characterized in that it includes rack, control system, sets in rack
Set for fixing chuck, Grinder bench and the wheel grinding mechanism being arranged thereon of workpiece, on-line measurement system, driving sand
Take turns the constant force griding system of grinding mechanism and on-line measurement system movement；It is control system connection control wheel grinding mechanism, online
Measuring system, constant force griding system；
The on-line measurement system is using the synchronous on-line measurement mode of point contact type, including servo-control system, setting are in grinding machine
On-line measurement supporting mechanism, on-line measurement ruler on workbench, the measurement process and process real-time synchronization of on-line measurement ruler；
The constant force griding system, which includes that servo motor, synchronous transmission mechanism are gentle, pushes back unloading device, and the servo motor is perseverance
Torque servo motor, permanent torque servo motor are constantly fed power by what synchronous transmission mechanism transmission was converted to workbench, make sand
Wheel grinding mechanism is ground workpiece end face, and after being ground to defined size, on-line measurement system issues signal, workbench
Feed-disabling, under control of the control system, air pressure rollback device realize that the horizontal operation of workbench is retracted, and reach defined position
It postpones, workbench stop motion, worker removes workpiece, completes the processing of a workpiece；The front end of the on-line measurement ruler is arranged
There is size adaptive and grinding status stabilizing mechanism, size is adaptive and grinding status stabilizing mechanism includes matrix and is arranged thereon
At least three screw holes, the compensating squeeze head that is arranged in screw hole, matrix is provided with jointing holes corresponding with on-line measurement ruler, by outer
Portion's screw can secure it within the front end of on-line measurement ruler；
The rear sleeve of the measuring scale is equipped with linkage and embraces ring, and the piston rod front end of driving cylinder is provided with connection end, the connecting pin
Head is embraced ring with linkage and is connect.
2. a kind of grinding machine with on-line measurement function according to claim 1, which is characterized in that the online survey
Gage includes the driving cylinder that measuring scale, the measuring probe that measurement ruler end part is arranged in and driving measuring scale are displaced in the horizontal direction in,
Measuring probe measures component, the axial dimension variable quantity of test object as point contact；
On-line measurement supporting mechanism includes fore bearing bearing corresponding with measuring scale, rear bearing bearing, Grinder bench measuring scale
It is arranged on Grinder bench by fore bearing bearing, rear bearing support movable, driving cylinder pushes measuring scale along Grinder bench
Horizontal direction generates displacement.
3. a kind of grinding machine with on-line measurement function according to claim 1, which is characterized in that the elasticity pressure
Head includes alloy pressure head, the headless screw being threadedly coupled with screw hole, the spring being connected between alloy pressure head and headless screw, closes
One end of golden pressure head passes through screw hole and extends outward, and headless screw passes through spring compression alloy pressure head.
4. a kind of grinding machine with on-line measurement function according to claim 1, which is characterized in that SERVO CONTROL system
System includes the servo mechanism connecting with servo motor, position signal processing module, and position signal processing module and servo mechanism connect
It connects；Position signal processing module obtains the physical location measuring signal with the contact surface of workpiece by measuring probe, and by its with
Target position signal is compared, and judges whether processing in place, if it is undressed in place if issue signal and send servo mechanism to, watch
Mechanism is taken according to undressed signal in place, issues constant force voltage signal to servo motor device, servo motor device receives constant force
After voltage signal, Grinder bench feeding processing is driven.
5. a kind of grinding machine with on-line measurement function according to claim 2, which is characterized in that measuring scale peripheral hardware
It is equipped with screw micrometer, the displacement stroke of measuring scale is limited by screw micrometer.
6. a kind of grinding machine with on-line measurement function according to claim 1, which is characterized in that the servo electricity
Machine is inertia motor TSB13102A, and matched servo-driver TSTA30C is connected on servo motor；Synchronous transmitting
Mechanism includes: driving wheel and driving belt, is equipped with double wedge on the surface of driving wheel, recessed equipped with engaging with double wedge on the belt
Slot.
7. a kind of grinding machine with on-line measurement function according to claim 1, which is characterized in that the air pressure is returned
Unloading device includes: power device, pipeline, control device and executive component,
The power device is used to be converted to the mechanical energy of prime mover the pressure energy of working media；
The piping connection serves as the runner of working media between power device and executive component；
The control device is installed on the pipeline, for controlling flow direction, pressure and the flow of working media；It is set on pipeline
There are working media storage bin and working media filter；
The executive component is used to the pressure energy of working media being converted to mechanical energy, under the action of working media power output and
Movement, to drive working table movement.
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| CN107272577A (en) * | 2017-07-06 | 2017-10-20 | 天通吉成机器技术有限公司 | A kind of periphery grinding machine on-line measurement and measurer for thickness |
| CN107571120A (en) * | 2017-11-10 | 2018-01-12 | 成都艾格科技有限责任公司 | A kind of steel rail refining mill automatic detection and adjustment mechanism |
| CN107900600B (en) * | 2017-12-19 | 2023-05-26 | 马鞍山市绿之友机械制造有限公司 | Robot welding device for grass cutting hob and welding method thereof |
| CN107877024B (en) * | 2017-12-19 | 2023-07-14 | 马鞍山市绿之友机械制造有限公司 | Cutting edge grinding device for grass cutting hob and grinding method thereof |
| CN110370106A (en) * | 2019-07-05 | 2019-10-25 | 常州工学院 | Cylinder block casting side wall flexible constant pressure polishing numerical control device and its control method |
| CN112611712B (en) * | 2020-04-30 | 2022-05-17 | 健研检测集团有限公司 | Material performance tester |
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| JP4748357B2 (en) * | 2005-10-14 | 2011-08-17 | 株式会社東京精密 | Dicing apparatus and method |
| CN102059649A (en) * | 2010-12-03 | 2011-05-18 | 河源富马硬质合金股份有限公司 | Method for monitoring radial grinding force of grinder and realizing constant-force feeding |
| JP6023598B2 (en) * | 2013-01-30 | 2016-11-09 | コマツＮｔｃ株式会社 | Grinding method |
| CN105058238B (en) * | 2015-07-24 | 2017-07-04 | 天通吉成机器技术有限公司 | A kind of on-line measurement system for periphery grinding machine processing blades |
| CN205246036U (en) * | 2015-12-23 | 2016-05-18 | 东旭科技集团有限公司 | Glass size measuring device |
| CN205870293U (en) * | 2016-07-26 | 2017-01-11 | 佛山职业技术学院 | Grinding machine with on line measurement function |
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