CN207026981U - Transmission main shaft structure and CNC milling machine for CNC milling machine - Google Patents
Transmission main shaft structure and CNC milling machine for CNC milling machine Download PDFInfo
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- CN207026981U CN207026981U CN201720976867.XU CN201720976867U CN207026981U CN 207026981 U CN207026981 U CN 207026981U CN 201720976867 U CN201720976867 U CN 201720976867U CN 207026981 U CN207026981 U CN 207026981U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 128
- 238000003801 milling Methods 0.000 title claims abstract description 58
- 238000013519 translation Methods 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
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- 210000004907 gland Anatomy 0.000 description 3
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- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000010079 rubber tapping Methods 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 241000222712 Kinetoplastida Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
A kind of transmission main shaft structure and CNC milling machine for CNC milling machine, belong to machining equipment field.The utility model proposes transmission main shaft structure be on the premise of numerical control milling machine spindle box body, by changing main shaft driving structure, change main shaft beat problem, enhance lathe function, improve main shaft life-span and machining accuracy, while lower manual assembly difficulty and the working strength of operating personnel.
Description
Technical field
Machining equipment field is the utility model is related to, in particular to a kind of transmission master for CNC milling machine
Axle construction and CNC milling machine.
Background technology
With expanding economy, social progress, effect is improved, optimization process time has become inevitable industry and is total to
Know.Various machine tools have increasingly been towards the features such as safe and efficient, the saving energy, easy to use, saving space, one-machine-multi-function
Direction is developed.CNC milling machine is no exception as a member important among processing industry.On existing milling machine, in order to obtain not
The machined parameters such as torque together, rotating speed need personnel according to different demands and constantly change position of belt etc., cumbersome,
Efficiency is low, and the abrasion because of conjunction gear and the rigidity deficiency of clutch tooth self structure, and after a period of time, abrasion causes miscellaneous
Sound is big, easily vibrations, and precision reduces, and causes to process the poor quality of part, disqualification rate is high.
Utility model content
In first aspect of the present utility model, there is provided a kind of its problem of can improving main shaft beat of transmission main shaft structure,
So as to improve its life-span.
In second aspect of the present utility model, there is provided a kind of CNC milling machine, its operation difficulty is low, and noise is small, and part adds
Work precision is high.
What the utility model was realized in：
A kind of transmission main shaft structure for CNC milling machine.Transmission main shaft structure includes integrated transmission shaft；
Power transmission shaft is mutually disengaged with the housing of the main spindle box of CNC milling machine；
The casing of the main spindle box of CNC milling machine is provided with upper end center hole, power transmission shaft using upper end centre bore as positioning datum,
Drive shaft cartridge is assigned in upper end center hole；
The main shaft of CNC milling machine coaxially assembles with power transmission shaft；
Upper end center hole power transmission shaft and main shaft are concentric.
In a preferable example, main spindle box includes box-type main spindle box.
In a preferable example, the mode of braking of main shaft is braked for electromagnetic clutch.
In a preferable example, the mode of braking of main shaft is braked for contracting brake.
In a preferable example, power transmission shaft is arranged on main spindle box using upper end centre bore as positioning datum and by bearing
Housing in.
In a preferable example, bearing uses dual bearing structure or multiaxis bearing structure.
In a preferable example, the housing of the main spindle box of CNC milling machine is provided with spindle encoder.
In a preferable example, the main axis mode of main spindle box is Chain conveyer or V belt translation.
In a preferable example, the housing of the main spindle box of CNC milling machine is provided with bearing support block, power transmission shaft it is upper
End extends and installed in bearing support block.
A kind of CNC milling machine, including foregoing transmission main shaft structure.
The beneficial effect of such scheme：
The utility model proposes transmission main shaft structure can greatly simplify the drive mechanism of CNC milling machine.Wherein, will be existing
Some main shaft and power transmission shaft become overall structure by split, and centered on the center of main spindle box body, ensure main shaft during assembling
Concentricity, rigidity of the main shaft in converted products is ensure that, while reduce fault rate, assembling or maintenance also become very simple
It is single.
In addition, main spindle box can increase installation spindle encoder, lathe is allowed, as CNC milling machine possesses tapping ability.
The mode processed of main shaft can be the form using electromagnetic clutch, to automatically control, avoid manually tool changing
Manipulation strength.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the monnolithic case structural representation for the main spindle box that the utility model embodiment provides；
Fig. 2 a show the structural representation of the housing in the transmission A portions of the main spindle box shown in Fig. 1；
Fig. 2 b show the structural representation of the casing of the main spindle box shown in Fig. 1；
Fig. 3 shows the shell structure schematic diagram of the main spindle box shown in Fig. 1；
Fig. 4 shows the screw mandrel group structural representation of the main spindle box shown in Fig. 1；
Fig. 5 shows the main shaft group structural representation of the main spindle box shown in Fig. 1.
Icon：100- main spindle boxes；101- shells；102- main shafts；103- power sources；The accommodating chambers of 104- first；105- second
Accommodating chamber；106- motor belt pulleys；107- driven pulleies；108- power transmission shafts；109- encoders；110- screw mandrels；201- is driven A
The housing in portion；202- casings；203- screw mandrel steps；204- screw mandrel top chocks；205- follower belt wheel bearings；206- silks
Bar wheel；207- top chock glands；208- clutches；209- tool striking devices；300- main shaft groups；301- clutch shaft bearings；302-
Two bearings；401- transition seats；402- adjustment plates；500- transmission shaft structures；600- screw mandrel groups；The elastic adjustment block of 601- belt pulleys；
700- round nuts；800- stop sun packing rings.
Embodiment
Milling machine (milling machine) refers mainly to be processed the machine on a variety of surfaces by milling action on workpiece with milling cutter
Bed.Milling machine is a kind of widely used lathe.Plane (horizontal plane, vertical plane, vertical plane), groove can be processed on milling machine
(keyway, T-slot, dovetail groove etc.), divide tooth part (gear, splined shaft, sprocket wheel), helical surface (screw thread, helicla flute) and each
Kind curved surface.In addition, milling machine can be additionally used in revolving body surface, interior hole machined and carry out cutting off work etc..
Usual milling cutter using rotary motion as main motion, workpiece (and) movement of milling cutter is feed motion.It can process flat
Face, groove, various curved surfaces, gear etc. can also be processed.Milling machine except can in addition to milling plane, groove, the gear teeth, screw thread and splined shaft,
More complicated type face can also be processed, efficiency is high compared with planer, is used widely in machine-building and repairing department.
At work, for workpiece dress on the table or on the first-class annex of indexing, milling cutter rotates to be main motion to milling machine, is aided with work
Make the feed motion of platform or milling head, workpiece can obtain required finished surface.
In order to process different complex parts, when milling machine needs efficient, high-precision, thus the also different rotating speed of transmission shaft of demand.
At present, the power transmission shaft speed governing of milling machine is mostly manual governing, it is necessary to manually operate, time-consuming work consuming.It is main because needing different revolutions
Structure of axle box is complicated, and accessory is more in main spindle box, and failure is more.There is fault of construction in traditional power transmission shaft, cause transmission shaft driven
Rigidity reduction, easily cause machinery loosen and failure, make the Product Precision of processing poor.In addition, deviation is easily caused during assembling,
Power transmission shaft is set easily to produce scraping when operating, noise is big, and power transmission shaft beat is serious, influences machining accuracy.Secondly, cutter is changed
Difficulty is big.
The utility model is under the premise of the main spindle box of above CNC milling machine, by changing main shaft driving structure, to improve
Bad problem above, equipment life and machining accuracy are such as improved, while the work for lowering manual assembly difficulty and operating personnel is strong
Degree.In addition, the function of lathe is expanded by additional functional component.
Also referring to Fig. 1 to Fig. 5.
In the utility model, there is provided be integration transmission shaft structure, it can increase transmission rigidity, reduce fault rate,
The difficulty of spindle drive assembling is reduced, improves main shaft life-span and machining accuracy, while increase annex to expand the function of lathe.
The main shaft and power transmission shaft that the transmission shaft structure design of integration designs original split change into overall structure, and
Centered on the center of the casing of main spindle box, ensure the concentricity of main shaft during assembling, ensure that main shaft is firm in converted products
Property, while fault rate is reduced, assembling or maintenance also become very simple.
Secondly, spindle encoder is installed by increasing, allows lathe to possess tapping ability.Principal shaft braking uses electromagnetic clutch
Form, to automatically control, avoid the manipulation strength of manually tool changing.
In the present embodiment, power transmission shaft and main shaft keep concentricity assembling, so as to form integrally-built transmission shaft structure.
Main shaft is on the basis of the center of the casing of main spindle box, in the casing of main spindle box.The upper end of main shaft extends to
In the housing in the transmission A portions of main spindle box, and concentricity assembling is kept with power transmission shaft.
In the present embodiment, the fixation of power transmission shaft is the upper end center for the casing that main spindle box is installed in by bearing.Transmission
The fixation of axle can also use other modes, such as the upper surface of the housing (case) in the transmission A portions of main spindle box to increase by one
Bearing support block, power transmission shaft upper end can extend, and in the bearing block of case upper surface, the rigidity of power transmission shaft is entered one
Step enhancing.The bearing used can use multiple bearing arrangements.
Foregoing main shaft driving structure can be applied in box-type main spindle box, can also apply in other kinds of main shaft
On case.
Main shaft is by transmission shaft driven, and the carrier being driven can use belt pulley.Belt pulley can be single groove or multiple-grooved,
Can be fixed ratio 1/1, can also other no-load voltage ratios, with suitable more manufacture fields.
Principal shaft braking form can use other forms, including armstrong's patent braking, brake sticking brake etc..
In the transmission shaft structure, power transmission shaft and main shaft keep concentricity assembling, by by integrally-built power transmission shaft
Structure is arranged in main spindle box, and is installed on the basis of the center of casing, it is achieved thereby that power transmission shaft, main shaft and master
The casing three of axle box is concentric, and therefore, the transmission rigidity of main shaft is stronger, and main shaft is less susceptible to wear, and is not easy to produce noise.
Described refers to that, as the power transmission shaft and main shaft for carrying out gyration, both gyration central axis are in same straight line with one heart.It is main
Center line of the casing of axle box in design and manufacture with a design.After power transmission shaft, main shaft are installed on main spindle box, Liang Zheqian
State rotary middle spindle and be located at same straight line with center line, i.e., it is conllinear.
The transmission shaft structure 500 that the utility model embodiment provides is applied to milling machine, and it is installed in the main spindle box of milling machine
In 100, to passing power, and the processing of part is realized by stage property.
Each component in transmission shaft structure 500 cooperates, and being formed has preferable rigid drive mechanism body.And its
Overall structure is more succinct, compact, thus is also more easy to assemble and install.
Based on foregoing content, the utility model provides a kind of transmission shaft structure 500.Transmission shaft structure 500 is arranged at
In main spindle box 100.
Milling machine includes main spindle box 100, base, lathe bed, workbench, column, milling head and broaching tool etc..Wherein, lathe bed is fixed
In base, workbench is arranged at lathe bed, and the lower end of column is connected with lathe bed, and the upper end of column is connected with milling head, and broaching tool is arranged at
Milling head.More than, base, lathe bed, workbench, column, milling head and broaching tool, can be the skill that means known to inventor utilizes are realized
Art, it will not be repeated here.
Fig. 1 is the monnolithic case structural representation of main spindle box 100；Fig. 3 shows the internal structure signal of main spindle box 100
Figure.Refering to Fig. 1 and Fig. 3, main spindle box 100 has shell 101, power source 103, transmission shaft structure 500, screw mandrel group 600.
As shown in Fig. 2 a, Fig. 2 b and Fig. 3, shell 101 has cavity, can be punch forming.Shell 101 has independent
Two spaces, i.e. the first accommodating chamber 104 and the second accommodating chamber 105.Shell 101 is generally divided into two parts, is respectively driven A portions
Housing 201 and casing 202.Solid support structure is set in main spindle box 100, so as to appropriate component such as by bearing, bearing
Impetus and stationary plane are provided Deng fixed.
Power source 103 can be the various host computers that can export power.For example, power source 103 can be motor or
Engine or other dynamic power machines.In the utility model embodiment, power source 103 exports rotation function and moment of torsion, and power source
103 may be selected to be electro-motor as shown in Figure 3.As a kind of specific example, electro-motor model is Y112M_4P-4KW.
The convenience of convenience and debugging based on installation, power source 103 are connected to shell 101 by adjustment plate 402.Further,
Main spindle box can also set the elastic adjustment block 601 of belt pulley.The elastic adjustment block 601 of belt pulley coordinates jointly with adjustment plate 402, from
And belt pulley is adjusted.
Fig. 3 shows the internal structure of main spindle box 100.As shown in figure 3, transmission shaft structure 500 is provided with shell 101,
And it can receive the turning effort transmitted with passing power source 103.
As shown in figure 3, transmission shaft structure 500 mainly includes power transmission shaft 108, main shaft 102.Power transmission shaft 108, main shaft 102 are same
Heart degree assembles, and forms integrated transmission shaft structure.
The kind of drive of main shaft 102 has motor belt pulley 106, driven pulley 107 and clutch 208.
Wherein, motor belt pulley 106 be as receive and the power in passing power source 103 and be provided, and power
The power in source 103 is transmitted by motor belt pulley 106.
The connected mode of motor belt pulley 106 and power source 103, according to the type property of can be chosen of power source 103
Adjustment.For example, when power source 103 is motor, the output shaft of motor is connected with motor belt pulley 106, specifically, horse
Motor (motor) output shaft is set in up to belt pulley 106.Motor belt pulley 106 and output axis connection, and motor belt pulley
106 with output shaft rotation.Motor belt pulley 106 has identical velocity of rotation with output shaft, and starts simultaneously at rotation, simultaneously
Stop operating.Motor belt pulley 106 can be connected to output shaft in many ways, to be convenient for changing and can be with output shaft synchronous
Rotation is advisable.In the present embodiment, the output shaft of motor belt pulley 106 and power source 103 (such as motor) is directly connected to, and altogether
Axle.
In some examples of the present utility model, motor belt pulley 106 can also by other middlewares with it is foregoing defeated
Go out axis connection, so as to passing power.In some such examples, motor belt pulley 106 can also be indirectly connected with output shaft, and
It is not coaxial.
Further, the also settable rotary encoder 109 to be cooperated with transmission shaft structure 500 of main spindle box 100.Rotation
Encoder 109 matches the rotation machinery reference quantity for matching measurement motor (or motor belt pulley 106), rotates mechanical reference quantity
One or both of the rotational angle displacement of output shaft including motor, angular speed.Increase lathe by installing encoder 109
The utility function of (such as milling machine), such as control speed and time of rotation etc..
Wherein, driven pulley 107 is rotatably disposed in shell 101 by follower belt wheel bearing 205
Interior, follower belt wheel bearing 205 is then fixed by the supporter in shell 101.
Driven pulley 107 is mutually matched with motor belt pulley 106 and realizes transmission with belt.Driven pulley 107 receives
The power that motor belt pulley 106 transmits (is exported) power, and downstream passing power by power source 103.Driven pulley 107
Downstream the power target that receives of passing power can be various slave computers or mechanism, and difference is performed will pass through the power of transmission
Action.For example, the power that driven pulley 107 transmits can drive power transmission shaft, then drive shaft, with realize make cutter,
Work piece holder rotates.
In the present embodiment, motor belt pulley 106 and driven pulley 107 pass through V belt translation (such as timing belt, V belt)
Mode realize the transmission of power.The kind of drive of motor belt pulley 106 and driven pulley 107 can also have multiple choices, can
To be selected according to appropriate requirement.
For example, motor belt pulley 106 passes through toothed belt transmission with driven pulley 107.In the example of toothed belt transmission,
Motor belt pulley 106 and driven pulley 107 are gear, and pass through synchronous band connection.The rotation of motor belt pulley 106 by
Timing belt transmission, and drive driven pulley 107 to rotate.By using toothed belt transmission, motor belt pulley 106 and follower belt
Wheel 107 can be properly spaced desired distance, to obtain preferable gearratio, and be easier to arrangement both (motor belts
Wheel 106 and driven pulley 107), so as to improve its structure.
In some other example of the present utility model, motor belt pulley 106 and driven pulley 107 can also be by nibbling
The mode of conjunction is driven, i.e. motor belt pulley 106 and driven pulley 107 is adopted as gear, and is intermeshed cooperation.
It should be noted that the size of motor belt pulley 106 and driven pulley 107, biography that can be as needed
Dynamic ratio, space structure layout, integral rigidity etc. carry out selection adjustment.For example, work as motor belt pulley 106 and driven pulley
107 when passing through V belt translation, and distance between the two, and the size of diameter can be adjusted.In the utility model embodiment,
The diameter of motor belt pulley 106 is less than the diameter of driven pulley 107, so that driven pulley 107 stablized, high-torque
Power output.It is both number of teeth, tooth pitch, straight when motor belt pulley 106 and driven pulley 107 are gear in another example
Footpath etc. can also carry out appropriate adjustment.
It is preferred that the shell 101 of main spindle box 100 can also connect regulating part.As a kind of optional example, regulating part is tune
Monoblock (figure is not marked).Adjustment part is used for center of rotation of the rotary centerline with driven pulley 107 for adjusting motor belt pulley 106
The distance between line.In some instances, motor belt pulley 106 and driven pulley 107 are entered by telescopic transmission belt
Row V belt translation.Regulating part adjusts the distance between motor belt pulley 106 and driven pulley 107, while also changes transmission belt
Length, to change the mechanical characteristic of transmission.
Wherein, power transmission shaft 108 is driven and rotated by driven pulley 107.Power transmission shaft 108 and driven pulley
107 rotate while static simultaneously.Specifically, power transmission shaft 108 and driven pulley 107 be coaxially connected and synchronous axial system.Transmission
Being relatively fixed for axle 108 and driven pulley 107, can be realized by nuts and washers.For example, power transmission shaft 108 is with screw thread
The mode of connection is socketed round nut 700 (model M50*1.5), and the matching of round nut 700 sets the (type of stop sun packing ring 800
Number such as M50).Between driven pulley 107 and round nut 700, it rubs connect respectively stop sun packing ring 800 with both
Touch.As a kind of example, 107 axially disposed cylindrical hole of driven pulley a, part for power transmission shaft 108 is located at foregoing circle
In cylindrical hole, and it is fixedly connected with driven pulley 107.I.e. driven pulley 107 is coaxially disposed with power transmission shaft 108, and
Power transmission shaft 108 is driven by driven pulley 107 to be rotated.
Wherein, main shaft 102 is to can be used for clamping, and the part for driving cutter for milling machines to rotate.In the utility model embodiment,
Main shaft 102 can be provided by being contained in the form of main shaft group 300, and be limited in shell 101.Main shaft group 300
Structure refers to Fig. 4.Main shaft 102 is restrained by clutch shaft bearing 301 and second bearing 302 and is rotatably arranged in
In shell 101, specifically it is arranged in the second accommodating chamber 105 as shown in Fig. 2 a, Fig. 2 b.Main shaft group 300 it is a kind of optional
Example is R main shafts group, NT30 main shaft groups.
Main shaft 102 and power transmission shaft 108, which cooperate, to be driven.Main shaft 102 is coaxially disposed with power transmission shaft 108, main shaft 102
It can be rotated independently of each other with power transmission shaft 108, or synchronous axial system, more specifically it is that main shaft 102 is driven by power transmission shaft 108
It is rotated.The fit system of main shaft 102 and power transmission shaft 108, such as can be：Power transmission shaft 108 is axially through setting
There is axis hole, main shaft 102 is coaxially arranged in axis hole, and the fixed sleeves of power transmission shaft 108 are provided with bearing, and power transmission shaft 108 turns with bearing
Kinetoplast synchronously rotates.Bearing is fixed in main spindle box 100, and specifically, bearing is by being arranged in main spindle box 100
Supporter is fixed.Supporter can be metal bump.
Wherein, the mutual cooperation of main shaft 102 and power transmission shaft 108 is adjusted by clutch 208.One kind of clutch 208
Example is clutch, is more specifically good section's clutch, its model JBK-F1-2.5KG φ 20.Main shaft 102 and power transmission shaft
108 are separated from each other and are contacted by clutch matching, and then are realized and stopped and rotate.Clutch and main shaft 102 are coaxially arranged, and
Clutch and the synchronous axial system of main shaft 102.Main shaft 102 and power transmission shaft 108 are by way of clutch matching is separated from each other and contacted
Can be：Clutch sets contact surface.Contact surface alternatively contacts or remote power transmission shaft 108, and contact surface and power transmission shaft 108
By friction and synchronous axial system during contact.
In other words, in one mode of operation, the contact surface of clutch is away from power transmission shaft 108, so as to main shaft 102 and transmission
Axle 108 is separate.The power transmission shaft 108 of rotation will not communicate rotational motion to main shaft 102.Now, main shaft 102 stops turning
It is dynamic, therefore, it is possible to carry out the operation such as workpiece, cutter changing.In another operation mode, the contact surface and power transmission shaft of clutch
108 contacts, and there is appropriate frictional force between the two.The size of frictional force is enough to make the power transmission shaft 108 of rotation to drive master
Axle 102 rotates.
In the utility model embodiment, the rotary centerline of motor belt pulley 106, the center of rotation of driven pulley 107
The rotary centerline of line, the rotary centerline of power transmission shaft 108 and main shaft 102 is mutually parallel.Each rotary components, there is phase
Mutually parallel rotary centerline, can be preferably driven.It should be appreciated that foregoing each rotary centerline can also
It is not parallel, but is collinearly limited with the rotary centerline of the rotary centerline of power transmission shaft 108 and main shaft 102, specifically can root
According to transmission demand adjustment.
It is preferred that shell 101 is provided with spaced the first accommodating chamber 104 (right side accommodating chamber) and the second accommodating chamber
105 (left side accommodating chambers).Motor belt pulley 106 is arranged at the first accommodating chamber 104, driven pulley 107, power transmission shaft 108, main shaft
102nd, clutch 208 may be contained within the second accommodating chamber 105.Shell 101 sets separate two spaces, and divides wherein
The component of transmission shaft structure 500 Bu Zhi not be formed, to improve the installation convenience of transmission shaft structure 500, while is easier to lead
Axle 102 positions.
In addition, main spindle box 100 can also set the mechanism to match with main shaft group 300.For example, the utility model embodiment
In, main spindle box 100 is set and the tool striking device 209 shown in Fig. 1 and Fig. 5.Tool striking device 209 can by transition seat 401 with it is outer
Shell 101 connects, and is specifically, and is connected by transition seat 401 with the housing 201 in transmission A portions.Tool striking device 209 and the (horse of power source 103
Up to) be predominantly located in outside shell 101, and may be contained within being driven the housing 201 in A portions, further, tool striking device 209 and motor
Set in the same direction.
A kind of example of tool striking device 209 is pneumatic knife striking cylinder, and it can be used for the cutter for being fixed on main shaft 102 with milling machine
To effect.The handle of a knife of plain-milling machine is by pull bar by being manually clamped, and this adds increased operation difficulty.The utility model is implemented
In example, elastic deformation and recovery of the main shaft 102 by elastic component, to realize the opening of handle of a knife and clamping, with fixed or dismounting knife
Tool.The elastic deformation of elastic component needs to provide a power set to give the output of power.In the utility model embodiment, to beat
Knife cylinder provides the deforming force of elastic component.When knife striking cylinder can be fluid pressure type and be pneumatic, it can be selected as needed.Gas
The cost of dynamic knife striking cylinder is low, for ease of maintenaince, and will not produce such as the Leakage of hydraulic pressure knife striking cylinder, thus, it is a kind of more excellent
Selection.
Further, main spindle box 100 also includes screw mandrel group 600, and screw mandrel group 600 passes through (such as Z axis ball screw of screw mandrel 110
110) and with leading screw, supporting structural member is to realize the lifting activity of the target component of main spindle box 100.The structure of screw mandrel group 600 is such as
Shown in Fig. 5.The both ends of screw mandrel 110 are arranged bearing (such as 6004 deep groove ball bearings) respectively, and the bearing at both ends passes through bearing block
(step of screw mandrel 110 and the top chock of screw mandrel 110) restrained fixation, and bearing block is then fixed in shell 101.
Wherein, the top chock of screw mandrel 110 also Matching installation has top chock gland 207.One of end of screw mandrel 110
End, i.e., the part of the neighbouring top chock of screw mandrel 110 are additionally provided with nut and matching packing ring.Nut sleeve is located at foregoing end, and
Engaged and fixed by screw thread.Nut is located between top chock gland 207 and the top chock of screw mandrel 110, and nut passes through pad
Circle enhancing stability.Wherein, nut can use AN04 models, and packing ring can use AW04 models.
Screw mandrel 110 also covers the wheel for being provided with synchronous rotation, i.e. screw mandrel wheel 206.Screw mandrel wheel 206 for example can be synchronous
Belt wheel (or Z axis synchronous pulley), its model can be 5M, Z36.Z axis synchronous pulley can pass through double round keys (model, 5*5*30) quilt
Constrain in the smooth department (being not provided with screw thread) of screw mandrel 110.
In the utility model embodiment, using the transmission shaft structure 500 of the drive mechanism design of integration.It has preferable
Transmission rigidity.Main spindle box 100 uses foregoing transmission shaft structure 500, it is possible to reduce the fault rate in transmission process, and assemble
Transmission shaft structure 500 is more convenient.Based on the milling machine of foregoing main spindle box 100, there is preferable scalability, can by increasing annex
Its feature is improved, simultaneously because the transmission rigidity of transmission shaft structure 500 is larger, the life-span of milling machine spindle 102 can be improved and added
Work precision.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of transmission main shaft structure for CNC milling machine, it is characterised in that the transmission main shaft structure includes integration and passed
Moving axis；
The power transmission shaft is mutually disengaged with the housing of the main spindle box of the CNC milling machine,
The casing of the main spindle box of the CNC milling machine is provided with upper end center hole, and the power transmission shaft is fixed using the upper end center hole
Position benchmark, the drive shaft cartridge are assigned in the upper end center hole；
The main shaft of the CNC milling machine coaxially assembles with the power transmission shaft；
Power transmission shaft and the main shaft are concentric described in the upper end center hole.
2. transmission main shaft structure according to claim 1, it is characterised in that the main spindle box includes box-type main spindle box.
3. transmission main shaft structure according to claim 1, it is characterised in that the mode of braking of the main shaft is electromagnetic clutch
Device is braked.
4. transmission main shaft structure according to claim 1, it is characterised in that the mode of braking of the main shaft is brake sticking brake
Device is braked.
5. transmission main shaft structure according to claim 1, it is characterised in that the power transmission shaft using the upper end center hole as
Positioning datum is simultaneously arranged in the housing of the main spindle box by bearing.
6. transmission main shaft structure according to claim 5, it is characterised in that the bearing uses dual bearing structure or multiaxis
Bearing structure.
7. transmission main shaft structure according to claim 1, it is characterised in that the housing peace of the main spindle box of the CNC milling machine
Equipped with spindle encoder.
8. transmission main shaft structure according to claim 1, it is characterised in that the main axis mode of the main spindle box is chain
Transmission or V belt translation.
9. transmission main shaft structure according to claim 1, it is characterised in that the housing of the main spindle box of the CNC milling machine is set
Bearing support block is equipped with, the upper end of the power transmission shaft extends and installed in the bearing support block.
10. a kind of CNC milling machine, it is characterised in that including transmission main shaft structure as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720976867.XU CN207026981U (en) | 2017-08-07 | 2017-08-07 | Transmission main shaft structure and CNC milling machine for CNC milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720976867.XU CN207026981U (en) | 2017-08-07 | 2017-08-07 | Transmission main shaft structure and CNC milling machine for CNC milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207026981U true CN207026981U (en) | 2018-02-23 |
Family
ID=61473533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720976867.XU Expired - Fee Related CN207026981U (en) | 2017-08-07 | 2017-08-07 | Transmission main shaft structure and CNC milling machine for CNC milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207026981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234451A (en) * | 2017-08-07 | 2017-10-10 | 普瑞赛斯（厦门）机械科技有限公司 | Transmission main shaft structure and CNC milling machine for CNC milling machine |
| TWI730791B (en) * | 2020-05-29 | 2021-06-11 | 富泰系統股份有限公司 | Precision power module |
-
2017
- 2017-08-07 CN CN201720976867.XU patent/CN207026981U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234451A (en) * | 2017-08-07 | 2017-10-10 | 普瑞赛斯（厦门）机械科技有限公司 | Transmission main shaft structure and CNC milling machine for CNC milling machine |
| TWI730791B (en) * | 2020-05-29 | 2021-06-11 | 富泰系統股份有限公司 | Precision power module |
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