CN104551854B - Counter boring device - Google Patents
Counter boring device Download PDFInfo
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- CN104551854B CN104551854B CN201510024825.1A CN201510024825A CN104551854B CN 104551854 B CN104551854 B CN 104551854B CN 201510024825 A CN201510024825 A CN 201510024825A CN 104551854 B CN104551854 B CN 104551854B
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- counter boring
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- digital quantity
- down head
- displacement transducer
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 53
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 50
- 238000004891 communication Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- 230000007246 mechanism Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/013—Control or regulation of feed movement
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
- B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2428—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring existing positions of tools or workpieces
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/385—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously using a gear and rack mechanism or a friction wheel co-operating with a rail
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Control Of Machine Tools (AREA)
- Drilling And Boring (AREA)
Abstract
The invention provides a kind of counter boring device, comprising: base plate, axis feeding system, position feedback system, electric control system.Axis feeding system includes: electro spindle, handle of a knife, cutter, line slideway, electro spindle retainer, driving motor, grating.Position feedback system includes: line slide rail, slide block, connecting plate, hold-down head, cylinder, micropulse displacement transducer.Electric control system includes: analog quantity/digital quantity signal modular converter, Programmable Logic Controller, digital control system.Use micropulse displacement transducer as the detecting element by the surface location of counter boring workpiece, use grating as the detecting element of the position of cutter, by analog quantity/digital quantity signal conversion module and Programmable Logic Controller, the data collected are transferred in digital control system, solve the problem carrying out axis Position Control in digital control system with reference to other positional informationes, thus ensure the precision of the counter boring degree of depth, the problem of the solution counter boring severity control using digital control system as control core element.
Description
Technical field
The present invention relates to automated arm and manufacture field, particularly relate to a kind of counter boring device.
Background technology
In modern automation equipment and manufacture, the process requirements of large complicated part is become more and more extensive.Wherein,
The machining accuracy of the hole machined precision especially dimple rivet hole of large thin-wall element determines precision and the reliability of follow-up assembling link.
And during the counter boring of large thin-wall element, due to the difference of the workpiece accuracy of manufacture Yu mathematical model, actual add workpiece table in man-hour
The position in face may often be such that the unknown, it is necessary to measures the position that just can determine that workpiece, and then calculates the first stepping of cutter
The degree of depth.After determining work surface location, although the preliminary feeding depth of cutter determines, but cutting force can make processed position
Putting and be deformed in axis feeding direction, therefore the precision of the counter boring degree of depth is difficult to be guaranteed, it is necessary to compensate.Existing side
Method uses motion control card as control core, and grating achieves above-mentioned compensation as workpiece positioning sensors, but this kind of method
In may not apply to the modern automation equipment using digital control system as control core and manufacturing.
Summary of the invention
In view of problem present in background technology, it is an object of the invention to provide a kind of counter boring device, it can guarantee that ream
The precision of the nest degree of depth.
Another object of the present invention is to provide a kind of counter boring device, it can solve to believe with reference to other positions in digital control system
The problem that breath carries out axis Position Control.
It is still another object of the present invention to provide a kind of counter boring device, it can improve stablizing of counter boring device overall operation
Property.
To achieve these goals, the invention provides a kind of counter boring device, comprising: base plate, axis feeding system, position
Put feedback system and electric control system.Axis feeding system includes: electro spindle, it is provided that rotary motion；Handle of a knife, one end is solid
Surely electro spindle it is connected to；Cutter, is fixedly connected on the other end of handle of a knife, for carrying out counter boring operation to by counter boring workpiece；Two
Line slideway, is set in parallel in base plate；Electro spindle retainer, is fixedly connected on electro spindle and is slidably arranged in two line slideways
On；Drive motor, drive electro spindle retainer linearly slide；And grating, it is fixedly installed on base plate and is positioned at electricity
The side of main shaft, for feeding back the signal of the position of the cutter of axis feeding system.Position feedback system includes: two straight lines are sliding
Rail, is arranged on base plate, is positioned at the outside of two line slideways of axis feeding system and straight with two of axis feeding system
Line guide rail parallel；Two slide blocks, each slide block is slidably arranged on a corresponding line slide rail；Connecting plate, two cunnings of fixing connection
Block, is provided with the handle of a knife for axis feeding system and the opening of cutter discrepancy；Hold-down head, side is fixedly connected on connecting plate, separately
Side contacts during counter boring and compresses by the surface of counter boring workpiece, and has the central opening more than shank diameter；Two
Cylinder, is arranged on base plate, and each cylinder has the cylinder body being fixed on base plate and the piston rod in and out of cylinder body, each piston rod
Outer end is fixedly connected on a corresponding slide block, to drive one slide block of this correspondence to slide along a corresponding line slide rail；And
Micropulse displacement transducer, for detecting the position of hold-down head and feeding back detection signal.Electric control system includes: analog quantity/
Digital quantity signal modular converter, communicates to connect micropulse displacement transducer, receives the hold-down head of micropulse displacement transducer feedback
The detection signal of position, and this detection signal is converted into digital quantity and feeds back；Programmable Logic Controller, communicates to connect mould
Analog quantity/digital quantity signal modular converter, reads the digital quantity of analog quantity/digital quantity signal modular converter feedback, and preserves this number
Word amount；And digital control system, record zero point O of grating, zero point O of micropulse displacement transducer in its memory ' and treat
The deep h of nest of counter boring workpiece, communication connection Programmable Logic Controller and the grating of axis feeding system, read in Programmable Logic Controller
The signal of the position of the cutter of the digital quantity of storage and the grating feedback of axis feeding system.Wherein, start in counter boring operation
Before, the signal of the position T of grating feedback cutter, micropulse displacement transducer detects the home position C of hold-down head and feeds back detection
Signal, analog quantity/digital quantity signal modular converter receives the inspection of the home position C of the hold-down head of micropulse displacement transducer feedback
Surveying signal, and this detection signal is converted into digital quantity and is fed back, Programmable Logic Controller reads analog quantity/digital quantity signal
The digital quantity of modular converter feedback, and preserves this digital quantity, digital control system receive the position T of the cutter of grating feedback signal,
And the numeral of the detection signal of the home position C of the hold-down head of the micropulse displacement transducer feedback of Programmable Logic Controller reading
Amount, afterwards, the opposite side of hold-down head via the action of the piston rod of two cylinders again via two slide blocks and the company of connecting plate
Connect and move, arrive by the surface of counter boring workpiece, contact and compress by the surface of counter boring workpiece, now micropulse displacement transducer
Primary importance W of detection hold-down head1And feeding back detection signal, analog quantity/digital quantity signal modular converter receives micropulse displacement
Primary importance W of the hold-down head of sensor feedback1Detection signal, and this detection signal is converted into digital quantity and carries out anti-
Feedback, Programmable Logic Controller reads the digital quantity of analog quantity/digital quantity signal modular converter feedback, and preserves this digital quantity, numerical control
System receives primary importance W of the hold-down head of the micropulse displacement transducer feedback that Programmable Logic Controller reads1Detection signal
Digital quantity, digital control system is by record zero point O of grating in memory, zero point O of micropulse displacement transducer ' and
Treat the deep h of nest of counter boring workpiece, calculate counter boring preliminary feeding depth d,
Starting counter boring operation, the electro spindle of axis feeding system is via driving motor driving electro spindle retainer linearly slide
Carrying out preliminary feed motion, the feeding depth of preliminary feed motion is d, makes cutter sequentially pass through the opening of connecting plate, hold-down head
Central opening arrive by the surface of counter boring workpiece, carry out counter boring operation to by counter boring workpiece；After counter boring just stepping terminates,
Cutter hovers, second position W of now micropulse displacement transducer detection hold-down head2And feed back detection signal, analog quantity/numeral
Amount signal conversion module receives second position W of the hold-down head of micropulse displacement transducer feedback2Detection signal, and by this inspection
Surveying signal be converted into digital quantity and feed back, Programmable Logic Controller reads analog quantity/digital quantity signal modular converter feedback
Digital quantity, and preserve this digital quantity, digital control system receives the pressure of the micropulse displacement transducer feedback that Programmable Logic Controller reads
Second position W of tight head2The digital quantity of detection signal and calculate primary importance W of hold-down head1With second position W2In feeding
Distance, delta between on direction,The electro spindle of axis feeding system is via driving motor driving electro spindle retainer
Linearly slide and carry out feed motion again, and the feeding depth of feed motion again is primary importance W of hold-down head1
With second position W2Distance, delta between in feed direction, makes cutter continue to carry out counter boring operation to by counter boring workpiece.
Beneficial effects of the present invention is as follows:
The counter boring device of the present invention carries out counter boring severity control based on by the surface location of counter boring workpiece, completes the counter boring degree of depth
Compensate, thus ensure the precision of the counter boring degree of depth.
Use micropulse displacement transducer as the detecting element by the surface location of counter boring workpiece, use grating as cutter
The detecting element of the position of tool, the data that will be collected by analog quantity/digital quantity signal conversion module and Programmable Logic Controller
It is transferred in digital control system, solves the problem carrying out axis Position Control in digital control system with reference to other positional informationes, thus solve
The certainly problem of the counter boring severity control using digital control system as control core element.
Compacted by counter boring workpiece and terminate latter two moment in counter boring just stepping and gather by the surface of counter boring workpiece
The data of position rather than the data of processing overall process are acquired and are processed, decrease the collection capacity of data, alleviate number
The data processing load of Ore-controlling Role, thus improve the stability of counter boring device overall operation.
Use cylinder as the executive component of hold-down head, the advantage that cylinder has flexibility, it is possible to avoid using motor to make
The issuable collision problem of executive component for hold-down head.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the counter boring device according to the present invention；
Fig. 2 is the axonometric chart of the hold-down head of the position feedback system of the counter boring device according to the present invention；
Fig. 3 is the control principle drawing of the electric control system of the counter boring device according to the present invention；
Fig. 4 is the schematic diagram calculation of the electric control system of the counter boring device according to the present invention.
Wherein, description of reference numerals is as follows:
1 base plate 331 opening
2 axis feeding system 35 hold-down heads
21 electro spindle 351 central openings
22 handle of a knife 36 cylinders
23 cutter 37 micropulse displacement transducers
24 line slideway 38 cylinder retainers
25 electro spindle retainer 4 electric control systems
26 drive motor 41 analog quantitys/digital quantity signal modular converter
27 grating 42 Programmable Logic Controllers
3 position feedback system 43 digital control systems
31 line slide rails
32 slide blocks
33 connecting plates
Detailed description of the invention
Describe the counter boring device according to the present invention with reference to the accompanying drawings in detail.
Referring to figs. 1 through Fig. 3, include according to the counter boring device of the present invention: base plate 1, axis feeding system 2, position feedback system
System 3 and electric control system 4.Axis feeding system 2 includes: electro spindle 21, it is provided that rotary motion (can realize high speed and super precision
Degree rotates)；Handle of a knife 22, one end is fixedly connected on electro spindle 21；Cutter 23, is fixedly connected on the other end of handle of a knife 22, for right
Counter boring operation is carried out by counter boring workpiece；Two line slideways 24, are set in parallel in base plate 1；Electro spindle retainer 25, fixing connection
In electro spindle 21 and be slidably arranged on two line slideways 24；Drive motor 26, drive electro spindle retainer 25 linearly to lead
Rail 24 slides；And grating 27, it is fixedly installed on base plate 1 and is positioned at the side of electro spindle 21, be used for feeding back axis feeding system
The signal of the position of the cutter 23 of system 2.Position feedback system 3 includes: two line slide rails 31, is arranged on base plate 1, is positioned at master
The outside of two line slideways 24 of axle feed system 2 and parallel with the two of axis feeding system 2 line slideways 24；Two cunnings
Block 32, each slide block 32 is slidably arranged on a corresponding line slide rail 31；Connecting plate 33, two slide blocks 32 of fixing connection, arrange
Have for axis feeding system 2 handle of a knife 22 and cutter 23 come in and go out opening 331；Hold-down head 35, side is fixedly connected on connection
Plate 33, opposite side contacts during counter boring and compresses by the surface of counter boring workpiece, and has the central authorities more than handle of a knife 22 diameter
Opening 351；Two cylinders 36, are arranged on base plate 1, and each cylinder 36 has the cylinder body 361 being fixed on base plate 1 and in and out of cylinder
The piston rod 362 of body 361, the outer end of each piston rod 362 is fixedly connected on a corresponding slide block 32, to drive one cunning of this correspondence
Block 32 slides along a corresponding line slide rail 31；And micropulse displacement transducer 37, for detecting the position of hold-down head 35
And feed back detection signal.Electric control system 4 includes: analog quantity/digital quantity signal modular converter 41, communicates to connect micropulse position
Displacement sensor 37, receives the detection signal of the position of the hold-down head 35 of micropulse displacement transducer 37 feedback, and this detection is believed
Number it is converted into digital quantity and feeds back；Programmable Logic Controller 42, communicates to connect analog quantity/digital quantity signal modular converter 41,
Read the digital quantity of analog quantity/digital quantity signal modular converter 41 feedback, and preserve this digital quantity；And digital control system 43,
Its memorizer records zero point O of grating 27, zero point O of micropulse displacement transducer 37 ' and treat the deep h of nest of counter boring workpiece,
Communication connection Programmable Logic Controller 42 and the grating 27 of axis feeding system 2, read the number of storage in Programmable Logic Controller 42
The signal of the position of the cutter 23 of grating 27 feedback of word amount and axis feeding system 2.Wherein, before counter boring operation starts,
Grating 27 feeds back the signal of the position T of cutter 23, and micropulse displacement transducer 37 detects the home position C of hold-down head 35 and feeds back
Detection signal, analog quantity/digital quantity signal modular converter 41 receives the former of the hold-down head 35 of micropulse displacement transducer 37 feedback
The detection signal of beginning position C, and this detection signal is converted into digital quantity and feeds back, Programmable Logic Controller 42 reads simulation
The digital quantity of amount/digital quantity signal modular converter 41 feedback, and preserve this digital quantity, it is anti-that first digital control system 43 receives grating 27
The compression of micropulse displacement transducer 37 feedback that the signal of the position T of the cutter 23 of feedback and Programmable Logic Controller 42 read
The digital quantity of the detection signal of the home position C of 35, afterwards, the opposite side of hold-down head 35 is via the piston rod of two cylinders 36
The action of 362 is moved via two slide blocks 32 and the connection of connecting plate 33, is arrived by the surface of counter boring workpiece, contact also
Compressing by the surface of counter boring workpiece, now micropulse displacement transducer 37 detects primary importance W of hold-down head 351And feed back detection
Signal, analog quantity/digital quantity signal modular converter 41 receives first of the hold-down head 35 of micropulse displacement transducer 37 feedback
Put W1Detection signal, and this detection signal is converted into digital quantity and feeds back, Programmable Logic Controller 42 read analog quantity/
The digital quantity of digital quantity signal modular converter 41 feedback, and preserve this digital quantity, digital control system 43 receives Programmable Logic Controller 42
Primary importance W of the hold-down head 35 of micropulse displacement transducer 37 feedback read1Detection signal digital quantity, digital control system
43 by record zero point O of grating 27 in memory, zero point O of micropulse displacement transducer 37 ' and treat counter boring workpiece
The deep h of nest, calculate counter boring preliminary feeding depth d,Start counter boring behaviour
Make, the electro spindle 21 of axis feeding system 2 via drive motor 26 drive electro spindle retainer 25 linearly guide rail 24 to slide and
Carrying out preliminary feed motion, the feeding depth of preliminary feed motion is d, make cutter 23 sequentially pass through connecting plate 33 opening 331,
The central opening 351 of hold-down head 35 arrives by the surface of counter boring workpiece, carries out counter boring operation to by counter boring workpiece；Preliminary at counter boring
After feeding terminates, cutter 23 hovers, and now micropulse displacement transducer 37 detects second position W of hold-down head 352And feed back inspection
Surveying signal, analog quantity/digital quantity signal modular converter 41 receives the second of the hold-down head 35 of micropulse displacement transducer 37 feedback
Position W2Detection signal, and this detection signal is converted into digital quantity and feeds back, Programmable Logic Controller 42 reads simulation
The digital quantity of amount/digital quantity signal modular converter 41 feedback, and preserve this digital quantity, digital control system 43 receives Programmable Logic Controller
Second position W of the hold-down head 35 of micropulse displacement transducer 37 feedback that 42 read2The detection digital quantity of signal and calculate
Go out primary importance W of hold-down head 351With second position W2Distance, delta between in feed direction, Axis feeding system
The electro spindle 21 of system 2 carries out the fortune of feeding again via driving motor 26 to drive electro spindle retainer 25 linearly guide rail 24 to slide
Dynamic, and primary importance W that the feeding depth of feed motion again is hold-down head 351With second position W2Between in feed direction
Distance, delta, make cutter 23 continue by counter boring workpiece and carry out counter boring operation.
Here, it should be noted that, before counter boring device comes into operation, axis feeding system 2 and position can be fed back system
System 3 carries out back to zero operation respectively, calibrates the position T of now cutter 23 and the relative distance of zero point O of grating 27 and compression
The home position C of 35 and zero point O of micropulse displacement transducer 37 ' relative distance, direct fixed storage and record are counting
In the memorizer of Ore-controlling Role 43, the fixed value set as counter boring device, in other words, except use for the first time counter boring device it
Outward, then need not again to demarcate before counter boring operation starts the relative distance of the position T of cutter 23 and zero point O of grating 27 and
The home position C of hold-down head 35 and zero point O of micropulse displacement transducer 37 ' relative distance.Thus, it is possible to the raising present invention
The efficiency of counter boring device.
Additionally, it should be noted that, the detection of the position of cutter 23 refer to cutter 23 in the face of by the surface of counter boring workpiece
The detection of position of side (the counter boring sword starting point of such as cutter 23), the detection of the position of hold-down head 35 refers to hold-down head 35
To the detection by the position of the side (the such as front end face of hold-down head 35) on the surface of counter boring workpiece.
The counter boring device of the present invention carries out counter boring severity control based on by the surface location of counter boring workpiece, completes the counter boring degree of depth
Compensate, thus ensure the precision of the counter boring degree of depth.
Use micropulse displacement transducer 37 as the detecting element by the surface location of counter boring workpiece, use grating 27 to make
For the detecting element of the position of cutter 23, will be adopted by analog quantity/digital quantity signal conversion module 41 and Programmable Logic Controller 42
Collect to data be transferred in digital control system 43, solve in digital control system and carry out axis Position Control with reference to other positional informationes
Problem, thus the problem solving the counter boring severity control using digital control system as control core element.
Compacted by counter boring workpiece and terminate latter two moment in counter boring just stepping and gather by the surface of counter boring workpiece
The data of position rather than the data of processing overall process are acquired and are processed, decrease the collection capacity of data, alleviate number
The data processing load of Ore-controlling Role, thus improve the stability of counter boring device overall operation.
Use cylinder 36 as the executive component of hold-down head 35, the advantage that cylinder has flexibility, it is possible to avoid using electricity
Machine is as the issuable collision problem of executive component of hold-down head 35.
In an embodiment of position feedback system 3, with reference to Fig. 1, position feedback system 3 may also include that cylinder retainer
38, it is fixedly installed on base plate 1, fixing connecting bottom board 1 and cylinder 36.
In an embodiment of the counter boring device according to the present invention, the opening 331 of connecting plate 33, the central authorities of hold-down head 35 open
The central axis of mouth 351 and the central axes of the cutter 23 of axis feeding system 2.
In an embodiment of the counter boring device according to the present invention, with reference to Fig. 2, hold-down head 35 can be drum.One
In embodiment, with reference to Fig. 2, it can be staircase structural model that hold-down head 35 contacts and compress the side on the surface by counter boring workpiece.Make pressure
The size of the side on tight 35 surface contacting and compressing by counter boring workpiece reduces as far as possible, close to can guarantee that cutter 23 normal through
Dimension limit, make the detection endface position of hold-down head 35 be more nearly the Working position on the surface by counter boring workpiece, thus very
Reflect the change that in the position of workpiece and the course of processing, the location of workpiece produces due to stress on the spot.
In an embodiment of the counter boring device according to the present invention, the central shaft of two cylinders 36 of position feedback system 3
Line can be respectively parallel to the central axis of the cutter 23 of axis feeding system 2 and be arranged symmetrically with.
In an embodiment of the counter boring device according to the present invention, with reference to Fig. 1, micropulse displacement transducer 37 can be fixed on
In one of them of two slide blocks 32.
In an embodiment of the counter boring device according to the present invention, micropulse displacement transducer 37 can be fixedly installed on two
One of them in cylinder 36.
In an embodiment of the counter boring device according to the present invention, drive motor 26 that screw nut driven mechanism can be used to come
Electro spindle retainer 25 linearly guide rail 24 is driven to slide.
Claims (8)
1. a counter boring device, it is characterised in that including:
Base plate (1)；
Axis feeding system (2), including:
Electro spindle (21), it is provided that rotary motion；
Handle of a knife (22), one end is fixedly connected on electro spindle (21)；
Cutter (23), is fixedly connected on the other end of handle of a knife (22), for carrying out counter boring operation to by counter boring workpiece；
Two line slideways (24), are set in parallel in base plate (1)；
Electro spindle retainer (25), is fixedly connected on electro spindle (21) and is slidably arranged on two line slideways (24)；
Drive motor (26), drive electro spindle retainer (25) linearly guide rail (24) to slide；And
Grating (27), is fixedly installed on base plate (1) and is positioned at the side of electro spindle (21), be used for feeding back axis feeding system
(2) signal of the position of cutter (23)；
Position feedback system (3), including:
Two line slide rails (31), are arranged on base plate (1), are positioned at two line slideways (24) of axis feeding system (2)
Outside and parallel with two line slideways (24) of axis feeding system (2)；
Two slide blocks (32), each slide block (32) is slidably arranged on each self-corresponding line slide rail (31)；
Connecting plate (33), two slide blocks (32) of fixing connection, it is provided with the handle of a knife (22) for axis feeding system (2) and cutter
(23) opening (331) come in and gone out；
Hold-down head (35), side is fixedly connected on connecting plate (33), and opposite side contacts during counter boring and compresses by counter boring work
The surface of part, and there is the central opening (351) more than handle of a knife (22) diameter；
Two cylinders (36), are arranged on base plate (1), and each cylinder (36) has the cylinder body (361) being fixed on base plate (1) and goes out
Entering the piston rod (362) of cylinder body (361), the outer end of each piston rod (362) is fixedly connected on a corresponding slide block (32), so that
Each piston rod (362) drives a corresponding slide block (32) to slide along a corresponding line slide rail (31)；And
Micropulse displacement transducer (37), is used for detecting the position of hold-down head (35) and feeding back detection signal；And
Electric control system (4), including:
Analog quantity/digital quantity signal modular converter (41), communication connection micropulse displacement transducer (37), receive micropulse displacement
The detection signal of the position of the hold-down head (35) that sensor (37) feeds back, and this detection signal is converted into digital quantity and carries out anti-
Feedback；
Programmable Logic Controller (42), communicates to connect analog quantity/digital quantity signal modular converter (41), reads analog quantity/digital quantity
The digital quantity that signal conversion module (41) is fed back, and preserve this digital quantity；And
Digital control system (43), records zero point O of grating (27), zero point O of micropulse displacement transducer (37) in its memory '
And treat the deep h of nest of counter boring workpiece, communication connection Programmable Logic Controller (42) and the grating (27) of axis feeding system (2),
Read the cutter (23) that in Programmable Logic Controller (42), the digital quantity of storage and the grating (27) of axis feeding system (2) feed back
The signal of position；
Wherein, before counter boring operation starts, the signal of the position T of grating (27) feedback cutter (23), micropulse displacement transducer
(37) detecting the home position C of hold-down head (35) and feed back detection signal, analog quantity/digital quantity signal modular converter (41) receives
The detection signal of the home position C of the hold-down head (35) that micropulse displacement transducer (37) feeds back, and this detection signal is changed
Becoming digital quantity and feed back, Programmable Logic Controller (42) reads the number that analog quantity/digital quantity signal modular converter (41) feeds back
Word amount, and preserve this digital quantity, digital control system (43) receive the position T of the cutter (23) that grating (27) feeds back signal and
The detection letter of the home position C of the hold-down head (35) that the micropulse displacement transducer (37) that Programmable Logic Controller (42) reads feeds back
Number digital quantity, afterwards, the opposite side of hold-down head (35) via the action of the piston rod (362) of two cylinders (36) again via two
Slide block (32) and the connection of connecting plate (33) and move, arrive by the surface of counter boring workpiece, contact and compress by counter boring workpiece
Surface, now primary importance W of micropulse displacement transducer (37) detection hold-down head (35)1And feed back detection signal, analog quantity/number
Word amount signal conversion module (41) receives primary importance W of the hold-down head (35) that micropulse displacement transducer (37) feeds back1Inspection
Surveying signal, and this detection signal is converted into digital quantity and is fed back, Programmable Logic Controller (42) reads analog quantity/digital quantity
The digital quantity that signal conversion module (41) is fed back, and preserve this digital quantity, digital control system (43) receives Programmable Logic Controller (42)
Primary importance W of the hold-down head (35) that the micropulse displacement transducer (37) read feeds back1Detection signal digital quantity, numerical control
System (43) is by record zero point O of grating (27) in memory, zero point O of micropulse displacement transducer (37) ' and
Treat the deep h of nest of counter boring workpiece, calculate counter boring preliminary feeding depth d,
Starting counter boring operation, the electro spindle (21) of axis feeding system (2) is via driving motor (26) driving electro spindle retainer
(25) linearly guide rail (24) slides and carries out preliminary feed motion, and the feeding depth of preliminary feed motion is d, makes cutter (23)
Sequentially pass through the opening (331) of connecting plate (33), the central opening (351) of hold-down head (35) arrives by the surface of counter boring workpiece,
Counter boring operation is carried out to by counter boring workpiece；
After counter boring just stepping terminates, cutter (23) hovers, now micropulse displacement transducer (37) detection hold-down head (35)
Second position W2And feeding back detection signal, analog quantity/digital quantity signal modular converter (41) receives micropulse displacement transducer
(37) second position W of the hold-down head (35) fed back2Detection signal, and this detection signal is converted into digital quantity and carries out anti-
Feedback, Programmable Logic Controller (42) reads the digital quantity that analog quantity/digital quantity signal modular converter (41) feeds back, and preserves this numeral
Amount, the hold-down head (35) that the micropulse displacement transducer (37) that digital control system (43) reception Programmable Logic Controller (42) reads feeds back
Second position W2The digital quantity of detection signal and calculate primary importance W of hold-down head (35)1With second position W2In feeding
Distance, delta between on direction,The electro spindle (21) of axis feeding system (2) is electric via driving motor (26) to drive
Main shaft retainer (25) linearly guide rail (24) slides and carries out feed motion again, and the feeding depth of feed motion again is
Primary importance W of hold-down head (35)1With second position W2Distance, delta between in feed direction, makes cutter (23) continue quilt
Counter boring workpiece carries out counter boring operation.
Counter boring device the most according to claim 1, it is characterised in that position feedback system (3) also includes:
Cylinder retainer (38), is fixedly installed on base plate (1), fixing connecting bottom board (1) and cylinder (36).
Counter boring device the most according to claim 1, it is characterised in that the opening (331) of connecting plate (33), hold-down head (35)
The central axes of cutter (23) of central axis and axis feeding system (2) of central opening (351).
Counter boring device the most according to claim 1, it is characterised in that hold-down head (35) is drum.
Counter boring device the most according to claim 4, it is characterised in that hold-down head (35) contacts and compresses by counter boring workpiece
The side on surface is staircase structural model.
Counter boring device the most according to claim 1, it is characterised in that two cylinders (36) of position feedback system (3)
Central axis is respectively parallel to the central axis of the cutter (23) of axis feeding system (2) and is arranged symmetrically with.
Counter boring device the most according to claim 1, it is characterised in that micropulse displacement transducer (37) is fixed on two cunnings
In one of them of block (32).
Counter boring device the most according to claim 1, it is characterised in that micropulse displacement transducer (37) is fixedly installed on two
One of them in individual cylinder (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510024825.1A CN104551854B (en) | 2015-01-19 | 2015-01-19 | Counter boring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510024825.1A CN104551854B (en) | 2015-01-19 | 2015-01-19 | Counter boring device |
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| Publication Number | Publication Date |
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| CN104551854A CN104551854A (en) | 2015-04-29 |
| CN104551854B true CN104551854B (en) | 2016-09-21 |
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| CN105689627B (en) * | 2016-03-30 | 2017-08-22 | 宜兴市融兴铸造有限公司 | Main shaft feeding mechanism of aircraft riveting machine |
| CN106907981B (en) * | 2017-01-09 | 2019-10-22 | 中国商用飞机有限责任公司 | Dimple depth measuring device and dimple depth measuring method |
| CN114179114B (en) * | 2022-02-17 | 2022-05-06 | 杭州飞钛航空智能装备有限公司 | Hole making normal alignment method, hole making tail end execution device and hole making robot |
| CN118123087A (en) * | 2024-04-30 | 2024-06-04 | 成都飞机工业（集团）有限责任公司 | Skin partition countersinking method, device, equipment and medium |
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