CN110000590A - A kind of miniature knife arm type knife library based on outer torque motor - Google Patents
A kind of miniature knife arm type knife library based on outer torque motor Download PDFInfo
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- CN110000590A CN110000590A CN201910351632.5A CN201910351632A CN110000590A CN 110000590 A CN110000590 A CN 110000590A CN 201910351632 A CN201910351632 A CN 201910351632A CN 110000590 A CN110000590 A CN 110000590A
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- 230000008859 change Effects 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000013519 translation Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000009467 reduction Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000005693 optoelectronics Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/15526—Storage devices; Drive mechanisms therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
The invention discloses a kind of miniature knife arm type knife libraries based on outer torque motor, including integral support, the driving unit that is fixedly mounted on integral support side, disc type cutterhead, push type broach component and the tool arm component for being fixedly mounted on the integral support other side being fixedly mounted in driving unit outer circumference；The bottom part down of disc type cutterhead is equipped with tool changing position, is clamped with a plurality of knife cups for being equipped with cutter on the circumference of disc type cutterhead；The output end of tool arm component is fixedly installed with tool change arm, and tool change arm transfers switching in the driving backspin of tool arm component and takes knife and tool changing；Push type broach component is mounted on the bottom of integral support, and is located at the top of tool changing position, and can descend push type broach cup；After driving unit driving disc type cutterhead makes knife cup rotational positioning, compression knife assembly presses to tool changing position, then takes out the cutter in knife cup and knife cup in tool changing position by tool change arm.The configuration of the present invention is simple, it is at low cost, it is small in size, it is applied and is occupied little space in numerically-controlled machine tool.
Description
Technical field
The present invention relates to numerically-controlled machine tool cutter replacing equipment technical fields, in particular to a kind of to be used for numerically-controlled machine tool automatic cutter changing machine
The tool magazine of structure.
Background technique
With the development of scientific and technological level, requirement of the manufacturing industry to the precision of machine tooling is also higher and higher, traditional lathe
Process equipment can not be competent at increasingly harsh process requirements already, therefore this degree of automation of the numerically-controlled machine tool that has been born is high
Machining apparatus.Numerically-controlled machine tool pooled applications computer technology, electronic technology, automatic control technology, sensing measurement, mechanical system
It the advanced technologies such as makes, is typical electromechanical integrated product.It is dynamic using cutting, feeding of digital control system automatic control machine tool etc.
Make, can be realized being precisely controlled for cutting output, while production efficiency can be greatly improved.The cutter and automatic tool changer of numerically-controlled machine tool
Mechanism has important influence to process time, and tool magazine is the main component of automatic tool changer, capacity, layout and specific
Structure has a significant impact to the design of numerically-controlled machine tool.
The function of tool magazine be storage manufacturing procedure required for various cutters, and according to instruction will cutter accurately give
To tool change position, and receive to send from main shaft has used cutter.According to demand, there are many forms, such as disc type for the type of tool magazine
Tool magazine, magazine and grid boxlike tool magazine.With the development of digital control system, most of digital control system is all used arbitrarily at present
Select the mode of knife, such as broach shell coding, Tool Coding and memory.
Existing tool magazine running part includes motor and speed reducer, and positioning method is counted by photo-electric proximity switch, according to
It is completed by mechanical groove, tool arm mechanism driving is mechanical cam box structure, and often bulky, weight is also than heavier；
It is easy to increase load inertia during high speed exercise, reduces the acceleration of lathe.In addition, counting optoelectronic switch is very easy to damage
It is bad, and positioning accuracy is poor, and causing tool change arm to be grabbed, knife is inaccurate, and tool magazine service life is lower；And cam box structure is with high costs,
It is difficult in maintenance.Since mechanism is responsible for heavier-weight, medium-and-large-sized lathe generally may be only available for.
Patent CN201621190605.2 discloses a kind of numerically-controlled machine tool cutter-exchange mechanism, including tool changing component and rotate driving
Mechanism, tool changing component include tool arm, and rotating drive mechanism drives tool arm rotation.Rotating drive mechanism includes driving motor and turns
Axis, driving motor drive shaft rotate, and are equipped with Aligning control positioning component on rotating drive mechanism, Aligning control positioning component includes
Signal wheel and proximity switch, signal wheel are coaxially fixed with shaft, have notch on signal wheel, proximity switch is optoelectronic switch, light
Electric switch includes luminescent device and photoelectric device, and luminescent device and photoelectric device are separately positioned on the two sides of signal wheel；Phototube
Part is connect with driving motor signal.When driving motor drives the rotation of signal wheel, proximity switch is arrived in the notch turn of signal wheel
Light is transmitted to photoelectric device, photoelectric device through the notch of signal wheel by the light of position corresponding to photoelectric device, luminescent device
Trigger signal is issued to driving motor, driving motor, which controls servo, to be stopped, tool arm Aligning control state.The positioning method of the patent according to
It is so to be counted by proximity switch, but count optoelectronic switch and be very easy to damage, and positioning accuracy is poor, and tool change arm is caused to be grabbed
Knife is inaccurate, and tool magazine service life is lower.
Patent CN201320258553.8 discloses a kind of modified numerically controlled processing equipment, including feed arrangement and tool changing dress
It sets, feed arrangement includes main shaft, and main shaft is connect by bracket with machine body；The main shaft is connected with reduction gearbox and servo electricity
Machine, reduction gearbox and servo motor are set to frame upper；The tool changing device includes a tool magazine, and tool magazine is annular, on tool magazine
It is provided with several cutter heads and shelves slot；It is provided on the outside of the tool magazine and send knife chain, sent and be provided with clamping knife rod on knife chain, press from both sides knife
The top of bar is provided with folder cutter groove.The patent can carry out automatic tool changer operation, facilitate in same work pieces process and need difference
Cutter when, can be automatically brought into operation, reduce the manual operation of equipment, improve work efficiency, reduce maloperation
Possibility；But the running part of the patent is still made of motor and speed reducer, volume is big, and increases during high speed exercise
Loading inertia reduces lathe acceleration.
Summary of the invention
To solve the above problems, that the purpose of the present invention is to provide a kind of structures is simple, small size, low cost based on outer
The miniature knife arm type knife library of torque motor.
Another object of the present invention is to provide a kind of miniature knife arm type knife library based on outer torque motor, the tool magazine by
In small in volume, the miniature numerical controls lathes such as engraving machine can be suitable for, and the tool magazine can be improved tool magazine integrated level and
Positioning accuracy can be obviously improved the service life of tool magazine and improve reliability.
To achieve the above object, technical scheme is as follows.
The present invention provides a kind of miniature knife arm type knife library based on outer torque motor, which is characterized in that including whole branch
Frame, the driving unit for being fixedly mounted on integral support side, the disc type cutterhead being fixedly mounted in driving unit outer circumference,
Push type broach component and the tool arm component for being fixedly mounted on the integral support other side；The bottom part down of the disc type cutterhead is equipped with tool changing
, a plurality of knife cups for being equipped with cutter are clamped on the circumference of the disc type cutterhead；The output end of the tool arm component is solid
Dingan County is equipped with tool change arm, and the tool change arm transfers switching in the driving backspin of the tool arm component and takes knife and tool changing；The pressure
Knife assembly is mounted on the bottom of the integral support, and is located at the top of the tool changing position, and can push the knife cup；The drive
After moving cell drives the disc type cutterhead to make the knife cup rotational positioning, tool changing position is pressed to by the push type broach component, then by
The tool change arm takes out the cutter in knife cup and knife cup at tool changing position.
In the present invention, which includes integral support, driving unit, disc type cutterhead, pressure assembly
With tool arm component, structure is simple, and simplification can be done on production process, to reduce cost, and simple structure can combine
The equipment for forming small size, is applied and is occupied little space in numerically-controlled machine tool；By miniature knife arm type knife library application of the invention
When existing numerically-controlled machine tool, under the instruction of the digital control system in numerically-controlled machine tool, driving unit driving knife cup selection needs to change
Knife cup is pressed into tool changing position, while being rotated by tool arm Component driver tool change arm then by push type broach cup under pressure assembly by the position of knife
Knife cup cutter is taken out to tool changing position, tool arm component drives tool change arm rotation to complete Tool changeover again.
Specifically, the integral support includes main body rack and tool arm module mounting bracket, and the two is fixedly connected；It is described
Driving unit, the disc type cutterhead and the push type broach component are installed on the main body rack；The tool arm component is fixed
It is mounted on the tool arm module mounting bracket.Integral support includes main body rack and tool arm module mounting bracket, and structure is simple,
Integral support can guarantee the structural stability of the miniature knife arm type knife library.
Specifically, the pressure assembly includes knife cup guide rail, knife cup briquetting and knife cup cylinder；The bottom of the main body rack
It is provided with notch, and the knife cup guide rail is fixed on the two sides of the notch；The knife cup cylinder is fixed on the main body rack
And it is located at the indentation, there；The knife cup cylinder is scalable and drives the knife cup briquetting upper and lower translation；The knife cup briquetting peace
The knife cup is pushed on the knife cup guide rail and under the driving of the knife cup cylinder.Knife cup is being pressed into tool changing position process
In, knife cup cylinder extends downwards, drives knife cup briquetting to translate on knife cup guide rail, thus lower push type broach cup.Wherein, knife cup guide rail has
There is guiding role.
Specifically, the knife cup fixing seat stablized and support the knife cup, and the knife cup fixing seat are equipped at the tool changing position
It is fixedly mounted on the end of the knife cup guide rail；The knife cup guide rail lower end, which is also fixedly installed with, to be arranged in the knife cup fixing seat
On limited block.Knife cup fixing seat can support knife cup, guarantee the stability that exchanging knives process carries out；Limited block limits knife cup briquetting
The distance of traveling makes knife cup briquetting that knife cup are pressed into knife cup fixing seat just.
Specifically, the circumference of the disc type cutterhead is equipped with knife cup mounting base, will be described by the knife cup mounting base
Knife cup is clamped on the disc type cutterhead；The shaft for extending transversely through the knife cup mounting base is equipped in the knife cup mounting base,
And Rotational Cylindrical is connected in the shaft；The knife cup is driven to be rotated by 90 ° downwards by Rotational Cylindrical rotation；It is described
Knife cup briquetting includes compressed part, sliding part and limiting section, and the connection that is integrally formed；The compressed part, sliding part and limit
Portion surrounds the accommodation space for accommodating the Rotational Cylindrical；The sliding part is driven by the knife cup cylinder and is put down on the knife cup guide rail
It moves；The compressed part is pressed on above the Rotational Cylindrical, and translates downwards with the sliding part and the knife cup is driven to move down；It is described
Limiting section is attached to below the Rotational Cylindrical and translates downwards with the sliding part, and is limited by the limited block.Knife cup briquetting and
The cooperation of Rotational Cylindrical guarantees smoothly be rotated by 90 ° downwards after knife cup pushes, conveniently takes knife.
Specifically, the tool arm component includes tool arm cylinder, tool arm swing arm motor and tool arm shaft；The tool arm cylinder and
The tool arm swing arm motor is fixedly mounted on the tool arm module mounting bracket, and the two is placed side by side；The tool arm turns
The top of axis is fixedly connected with the output end of the tool arm swing arm motor, and end is fixedly connected with the tool change arm；The tool arm
Shaft is located at the middle part of the tool change arm；The rotation of tool arm shaft described in the tool arm swing arm motor driven drives the tool change arm rotation
Turn switching and takes knife and tool changing；The tool arm cylinder manipulation tool change arm that can stretch up and down is completed to grab knife when rotating to tool changing position
And take the up and down action of knife.In the present invention, using tool arm cylinder and tool arm swing arm motor, traditional mechanical cam box is substituted
Structure, low in cost and reliability improve.Wherein, tool change arm is existing tool-changing mechanical arm, and respectively there is a cutter claw in left and right, complete
At the movement for taking knife and tool changing.During taking knife, tool arm cylinder pushes from knife cup fixing seat and takes out knife cup cutter, tool arm swing arm
Motor rotation makes tool change arm complete Tool changeover, the motor spinning reduction of tool arm swing arm later, and tool arm cylinder rises, and completion is entirely changed
Knife work.
Specifically, the tool arm swing arm motor is servo motor, and servo motor is existing servo motor, and tool arm cylinder is
Existing cylinder, this combination for selecting servo motor and cylinder are low in cost and light-weight.
Specifically, the integral support further includes being used to support the arm pivoted supporting support of knife, solid in the supporting support
Dingan County is equipped with spring bearing, connects the tool arm shaft and the supporting support by the spring bearing；The supporting support
It is fixedly connected with the main body rack, and the two surrounds the installation for accommodating the tool arm component and the tool arm module mounting bracket
Space.The use of supporting support and spring bearing, enable the driving force for the transmitting tool arm swing arm motor that tool arm shaft can be stable to
Tool change arm.
Specifically, the driving unit includes driving motor and absolute value encoder, and the absolute value encoder is arranged
Precise positioning is carried out on the driving motor and to knife cup；The disc type cutterhead is fixedly mounted on the outside of the driving motor
On circumference.Absolute value encoder is, it can be achieved that high accuracy positioning.
Specifically, the driving motor is outward rotation type torque motor.
The present invention substitutes traditional mechanical reduction machine mechanism using outer torque motor, substitutes light with absolute value encoder
Electric counter switch can be improved the integrated level and positioning accuracy of tool magazine, the service life and raising reliability of the significant tool magazine of energy.
In the present invention, which can be set the protection shell of integral type, and degree of protection can be improved.
Compared with the prior art, which includes integral support, driving unit, disc type knife to the present invention
Disk, pressure assembly and tool arm component, structure is simple, and simplification can be done on production process, to reduce cost, and simple knot
Structure can combine the equipment to form small size, applied and occupied little space in numerically-controlled machine tool.
The miniature knife arm type knife library can be suitable for the miniature numerical controls lathes such as engraving machine due to small in volume；And it should
Tool magazine substitutes traditional mechanical reduction machine mechanism using outer torque motor, is opened with absolute value encoder substitution photoelectric counting
It closes, tool changing arm configuration substitutes mechanical cam box structure using cylinder and swing arm motor, can be improved the integrated level of tool magazine and determines
Position precision can be obviously improved the service life of tool magazine and improve reliability.
Detailed description of the invention
Fig. 1 is that being equipped with for the miniature knife arm type knife library based on outer torque motor that the present invention is implemented protects shell
Structural schematic diagram.
Fig. 2 is the structural representation at a visual angle of the miniature knife arm type knife library based on outer torque motor that the present invention is implemented
Figure.
Fig. 3 is that the structure at another visual angle for the miniature knife arm type knife library based on outer torque motor that the present invention is implemented is shown
It is intended to.
Fig. 4 is the main view for the miniature knife arm type knife library based on outer torque motor that the present invention is implemented.
Fig. 5 is the right view for the miniature knife arm type knife library based on outer torque motor that the present invention is implemented.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
To achieve the above object, technical scheme is as follows.
Referring to Fig. 1-5, the present invention provides a kind of miniature knife arm type knife library based on outer torque motor, including integral support
1, the disc type knife for being fixedly mounted on the driving unit 2 of 1 side of integral support, being fixedly mounted in 2 outer circumference of driving unit
Disk 3, push type broach component 4 and the tool arm component 5 for being fixedly mounted on 1 other side of integral support；The bottom part down of disc type cutterhead 3 is equipped with
Tool changing position 6 is clamped with a plurality of knife cups 31 for being equipped with cutter (not shown) on the circumference of disc type cutterhead 3；Tool arm component 5
Output end is fixedly installed with tool change arm 7, and tool change arm 7 transfers switching in the driving backspin of tool arm component 5 and takes knife and tool changing；Push type broach
Component 4 is mounted on 1 bottom of integral support, and is located at the top of tool changing position 6, and can descend push type broach cup 31；The driving circle of driving unit 2
After disc type cutterhead 3 makes 31 rotational positioning of knife cup, compression knife assembly 4 presses to tool changing position 6, then is taken by tool change arm 7 in tool changing position 6
Cutter in knife cup 31 and knife cup 31 out.
In the present invention, which includes integral support 1, driving unit 2, disc type cutterhead 3, pressure group
Part 4 and tool arm component 5, structure is simple, and simplification can be done on production process, to reduce cost, and simple structure can be with
The equipment for forming small size is combined, is applied and is occupied little space in numerically-controlled machine tool；By miniature knife arm type knife library of the invention
When applied to existing numerically-controlled machine tool, under the instruction of the digital control system in numerically-controlled machine tool, driving unit 2 drives knife cup 31 to select
The position of tool changing is needed, then by the lower push type broach cup 31 of pressure assembly 4, knife cup 31 is pressed into tool changing position 6, while by tool arm component 5
The rotation of tool change arm 7 to tool changing position 6 is driven to take out 31 cutter of knife cup, tool arm component 5 drives the rotation of tool change arm 7 to complete cutter again and hands over
It changes.
In the present embodiment, integral support 1 includes main body rack 11 and tool arm module mounting bracket 12, and the two is fixed and connected
It connects；Driving unit 2, disc type cutterhead 3 and push type broach component 4 are installed on main body rack 11；Tool arm component 5 is fixedly mounted on knife
In arm component mounting bracket 12.Integral support 1 includes main body rack 11 and tool arm module mounting bracket 12, and structure is simple, whole
Bracket 1 can guarantee the structural stability of the miniature knife arm type knife library.
In the present embodiment, pressure assembly 4 includes knife cup guide rail 41, knife cup briquetting 42 and knife cup cylinder 43；Main body rack
11 bottom is provided with notch 111, and knife cup guide rail 41 is fixed on the two sides of notch 111；Knife cup cylinder 43 is fixed on main body rack
On 11 and it is located at notch 111；Knife cup cylinder 43 is scalable and with 42 upper and lower translation of moving knife cup briquetting；Knife cup briquetting 42 is mounted on
Push type broach cup 31 is descended on knife cup guide rail 41 and under the driving of knife cup cylinder 43.During knife cup 31 is pressed into tool changing position 6, knife cup
Cylinder 43 extends downwards, drives knife cup briquetting 42 to translate on knife cup guide rail 41, thus lower push type broach cup 31.Wherein, knife cup guide rail
41 have guiding role.
In the present embodiment, the knife cup fixing seat 61 for stablizing support knife cup 31, and knife cup fixing seat 61 are equipped at tool changing position 6
It is fixedly mounted on the end of knife cup guide rail 41；41 lower end of knife cup guide rail is also fixedly installed with the limit being arranged in knife cup fixing seat 61
Position block 8.Knife cup fixing seat 61 can support knife cup 31, guarantee the stability that exchanging knives process carries out；Limited block 8 limits knife cup briquetting
42 distances advanced, make knife cup briquetting 42 that knife cup 31 are pressed into knife cup fixing seat 61 just.
In the present embodiment, the circumference of disc type cutterhead 3 is equipped with knife cup mounting base 32, by knife cup mounting base 32 by knife
Cup 31 is clamped on disc type cutterhead 3；The shaft (not shown) for extending transversely through knife cup mounting base 32 is equipped in knife cup mounting base 32,
And Rotational Cylindrical 321 is connected in shaft；Band moving knife cup 31 is rotated by Rotational Cylindrical 321 to be rotated by 90 ° downwards；Knife cup briquetting
32 include compressed part (not shown), sliding part (not shown) and limiting section 421, and the connection that is integrally formed；Compressed part, sliding
Portion and limiting section 421 surround the accommodation space (not shown) for accommodating Rotational Cylindrical 321；Sliding part is driven by knife cup cylinder 43 in knife cup
It is translated on guide rail 41；Compressed part is pressed on 321 top of Rotational Cylindrical, and moves down with the downward translation carry moving knife cup 31 of sliding part；Limit
Portion 421 is attached to 321 lower section of Rotational Cylindrical and translates downwards with sliding part, and is limited by limited block 8.Knife cup briquetting 32 and Rotational Cylindrical
321 cooperation guarantees smoothly be rotated by 90 ° downwards after knife cup 31 pushes, conveniently takes knife.
In the present embodiment, tool arm component 5 includes tool arm cylinder 51, tool arm swing arm motor 52 and tool arm shaft 53；Tool arm
Cylinder 51 and tool arm swing arm motor 52 are fixedly mounted on tool arm module mounting bracket 12, and the two is placed side by side；Tool arm turns
The top of axis 53 is fixedly connected with the output end of tool arm swing arm motor 52, and end is fixedly connected with tool change arm 7；Tool arm shaft 53
In the middle part of tool change arm 7；Tool arm swing arm motor 52 drives the rotation of tool arm shaft 53 that 7 rotary cutting of tool change arm is driven to exchange knife for and change
Knife；Tool arm cylinder 51 can stretch up and down manipulation tool change arm 7 complete to grab knife when rotating to tool changing position and take the up and down action of knife.?
In the present invention, using tool arm cylinder 51 and tool arm swing arm motor 52, substitute traditional mechanical cam box structure, it is low in cost and
Reliability improves.Wherein, tool change arm 7 is existing tool-changing mechanical arm, and respectively there is a cutter claw in left and right, completes to take knife and tool changing
Movement.During taking knife, tool arm cylinder 51 pushes from knife cup fixing seat 61 and takes out 31 cutter of knife cup, and tool arm swing arm motor 52 revolves
Turn that tool change arm 7 is made to complete Tool changeover, 52 spinning reduction of the motor of tool arm swing arm later, tool arm cylinder 51 rises, and completion is entirely changed
Knife work.
In the present embodiment, tool arm swing arm motor 52 is servo motor, and servo motor is existing servo motor, tool arm gas
Cylinder 51 is existing cylinder, this combination for selecting servo motor and cylinder, low in cost and light-weight.
In the present embodiment, integral support 1 further includes the supporting support 13 for being used to support tool arm shaft 53, supporting support 13
On be fixedly installed with spring bearing 9, connection tool arm shaft 53 and supporting support 13 is held by support shaft 9；Supporting support 13 and master
Body support frame 11 is fixedly connected, and the two surrounds the installation space for accommodating tool arm component 5 and tool arm module mounting bracket 12.Support branch
The use of frame 13 and spring bearing 8 enables the driving force for the transmitting tool arm swing arm motor 52 that tool arm shaft 53 can be stable to tool changing
Arm 7.
In the present embodiment, driving unit 2 includes driving motor 21 and absolute value encoder (not shown), and absolute value is compiled
Code device is arranged on driving motor 21 and carries out precise positioning to knife cup 31；Disc type cutterhead 3 is fixedly mounted on driving motor 21
In outer circumference.Absolute value encoder is, it can be achieved that high accuracy positioning.
In the present embodiment, driving motor 21 is outward rotation type torque motor.
The present invention substitutes traditional mechanical reduction machine mechanism using outer torque motor, substitutes light with absolute value encoder
Electric counter switch can be improved the integrated level and positioning accuracy of tool magazine, the service life and raising reliability of the significant tool magazine of energy.
In the present invention, which can be set the protection shell 0 of integral type, and protection etc. can be improved
Grade.
Compared with the prior art, structure is simple by the present invention, and simplification can be done on production process, so that cost is reduced, and
Simple structure can combine the equipment to form small size, applied and occupied little space in numerically-controlled machine tool.
The miniature knife arm type knife library can be suitable for the miniature numerical controls lathes such as engraving machine due to small in volume；And it should
Tool magazine substitutes traditional mechanical reduction machine mechanism using outer torque motor, is opened with absolute value encoder substitution photoelectric counting
It closes, tool changing arm configuration substitutes mechanical cam box structure using cylinder and swing arm motor, can be improved the integrated level of tool magazine and determines
Position precision can be obviously improved the service life of tool magazine and improve reliability.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of miniature knife arm type knife library based on outer torque motor, which is characterized in that including integral support, be fixedly mounted on
The driving unit of integral support side, the disc type cutterhead being fixedly mounted in driving unit outer circumference, push type broach component and solid
Dingan County is mounted in the tool arm component of the integral support other side；The bottom part down of the disc type cutterhead is equipped with tool changing position, the disk
A plurality of knife cups for being equipped with cutter are clamped on the circumference of formula cutterhead；The output end of the tool arm component is fixedly installed with tool changing
Arm, and the tool change arm transfers switching in the driving backspin of the tool arm component and takes knife and tool changing；The push type broach component is mounted on
The bottom of the integral support, and it is located at the top of the tool changing position, and the knife cup can be pushed；The driving unit drives institute
After stating disc type cutterhead and making the knife cup rotational positioning, tool changing position is pressed to by the push type broach component, then existed by the tool change arm
Knife cup is taken out at tool changing position.
2. the miniature knife arm type knife library as described in claim 1 based on outer torque motor, which is characterized in that the whole branch
Frame includes main body rack and tool arm module mounting bracket, and the two is fixedly connected；The driving unit, the disc type cutterhead and
The push type broach component is installed on the main body rack；The tool arm component is fixedly mounted on the tool arm module mounting bracket
On.
3. the miniature knife arm type knife library as claimed in claim 2 based on outer torque motor, which is characterized in that the pressure group
Part includes knife cup guide rail, knife cup briquetting and knife cup cylinder；The bottom of the main body rack is provided with notch, and the knife cup guide rail is solid
It is scheduled on the two sides of the notch；The knife cup cylinder is fixed on the main body rack and is located at the indentation, there；The knife cup
Cylinder is scalable and drives the knife cup briquetting upper and lower translation；The knife cup briquetting is mounted on the knife cup guide rail and described
The knife cup is pushed under the driving of knife cup cylinder.
4. the miniature knife arm type knife library as claimed in claim 3 based on outer torque motor, which is characterized in that the tool changing position
Place is equipped with the knife cup fixing seat stablized and support the knife cup, and the knife cup fixing seat is fixedly mounted on the end of the knife cup guide rail
End；The knife cup guide rail lower end is also fixedly installed with the limited block being arranged in the knife cup fixing seat.
5. the miniature knife arm type knife library as claimed in claim 4 based on outer torque motor, which is characterized in that the disc type
The circumference of cutterhead is equipped with knife cup mounting base, and the knife cup is clamped in the disc type cutterhead by the knife cup mounting base
On；It is equipped with the shaft for extending transversely through the knife cup mounting base in the knife cup mounting base, and is connected with and turns in the shaft
Dynamic column；The knife cup is driven to be rotated by 90 ° downwards by Rotational Cylindrical rotation；The knife cup briquetting includes compressed part, sliding part
And limiting section, and the connection that is integrally formed；The compressed part, sliding part and limiting section surround the receiving for accommodating the Rotational Cylindrical
Space；The sliding part is driven by the knife cup cylinder and is translated on the knife cup guide rail；The compressed part is pressed on described turn
Above dynamic column, and is translated downwards with the sliding part and the knife cup is driven to move down；The limiting section is attached to below the Rotational Cylindrical
And it is translated downwards with the sliding part, and limited by the limited block.
6. the miniature knife arm type knife library as claimed in claim 2 based on outer torque motor, which is characterized in that the tool arm group
Part includes tool arm cylinder, tool arm swing arm motor and tool arm shaft；The tool arm cylinder and the fixed peace of the tool arm swing arm motor
On the tool arm module mounting bracket, and the two is placed side by side；The arm pivoted top of knife and tool arm swing arm electricity
The output end of machine is fixedly connected, and end is fixedly connected with the tool change arm；The tool arm shaft is located at the middle part of the tool change arm；
The rotation of tool arm shaft described in the tool arm swing arm motor driven drives the tool change arm rotary cutting to exchange knife and tool changing for；The tool arm
The cylinder manipulation tool change arm that can stretch up and down is completed to grab knife when rotating to tool changing position and takes the up and down action of knife.
7. the miniature knife arm type knife library as claimed in claim 6 based on outer torque motor, which is characterized in that the whole branch
Frame further includes being used to support the arm pivoted supporting support of knife, spring bearing is fixedly installed in the supporting support, by described
Spring bearing connects the tool arm shaft and the supporting support；The supporting support is fixedly connected with the main body rack, and
The two surrounds the installation space for accommodating the tool arm component and the tool arm module mounting bracket.
8. the miniature knife arm type knife library as described in claim 1 based on outer torque motor, which is characterized in that the driving is single
Member include driving motor and absolute value encoder, and the absolute value encoder be arranged on the driving motor and to knife cup into
Row precise positioning；The disc type cutterhead is fixedly mounted in the driving motor outer circumference.
9. the miniature knife arm type knife library as claimed in claim 8 based on outer torque motor, which is characterized in that the driving electricity
Machine is outward rotation type torque motor.
10. the miniature knife arm type knife library as claimed in claim 6 based on outer torque motor, which is characterized in that the tool arm
Swing arm motor is servo motor.
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| CN201910351632.5A CN110000590A (en) | 2019-04-28 | 2019-04-28 | A kind of miniature knife arm type knife library based on outer torque motor |
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| CN201910351632.5A CN110000590A (en) | 2019-04-28 | 2019-04-28 | A kind of miniature knife arm type knife library based on outer torque motor |
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