CN104551854A - Dimple device - Google Patents
Dimple device Download PDFInfo
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- CN104551854A CN104551854A CN201510024825.1A CN201510024825A CN104551854A CN 104551854 A CN104551854 A CN 104551854A CN 201510024825 A CN201510024825 A CN 201510024825A CN 104551854 A CN104551854 A CN 104551854A
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- counter boring
- hold
- digital quantity
- down head
- displacement transducer
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 53
- 238000001514 detection method Methods 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 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
- 238000013178 mathematical model Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003860 storage Methods 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
Landscapes
- 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 dimple device which comprises a base plate, a spindle feeding system, a position feedback system and an electrical control system. The spindle feeding system comprises an electrical spindle, a cutter handle, a cutter, a linear guide rail, an electrical spindle retainer, a driving motor and an optical grating. The position feedback system comprises a linear slide rail, a slide block, a connecting plate, a pressing head, an air cylinder and a micro-pulse displacement sensor. The electrical control system comprises an analog quantity/digital signal conversion module, a programmable controller and a numerical control system. The micro-pulse displacement sensor serves as an element for detecting the surface position of a dimple workpiece, the optical grating serves as an element for detecting the position of the cutter, and acquired data are transmitted to the numerical control system through the analog quantity/digital signal conversion module and the programmable controller. The problem that shaft position control is performed in the numerical control system by referring to other position information is solved, accordingly the dimple depth accuracy is ensured, and the problem of the dimple depth control of the numerical control system serving as a control core element is solved.
Description
Technical field
The present invention relates to automated arm and manufacture field, particularly relate to a kind of counter boring device.
Background technology
At modern automation equipment and in manufacturing, the process requirements of large complicated part is become more and more extensive.Wherein, the machining accuracy of the hole machined precision of large thin-wall element especially dimple rivet hole determines precision and the reliability of follow-up assembling link.And in the counter boring process of large thin-wall element, due to the difference of the workpiece accuracy of manufacture and mathematical model, the actual position adding surface of the work in man-hour is usually unknown, must carries out measuring the position could determining workpiece, and then calculate the preliminary feeding depth of cutter.After determining work surface location, although the preliminary feeding depth of cutter determines, cutting force can make processed position produce distortion in axis feeding direction, and therefore the precision of the counter boring degree of depth is difficult to be guaranteed, and must compensate.Existing method adopts motion control card as control core, and grating achieves above-mentioned compensation as workpiece positioning sensors, but this kind of method can not be applied to modern automation equipment using digital control system as control core and in manufacturing.
Summary of the invention
In view of Problems existing in background technology, the object of the present invention is to provide a kind of counter boring device, it can ensure the precision of the counter boring degree of depth.
Another object of the present invention is to provide a kind of counter boring device, it can solve the problem of carrying out axis Position Control in digital control system with reference to other positional informations.
Another object of the present invention is to provide a kind of counter boring device, and it can improve the stability of counter boring device overall operation.
To achieve these goals, the invention provides a kind of counter boring device, it comprises: base plate, axis feeding system, position feedback system and electric control system.Axis feeding system comprises: electro spindle, provides rotary motion; Handle of a knife, one end is fixedly connected on electro spindle; 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 slideways, are set in parallel in base plate; Electro spindle retainer, is fixedly connected on electro spindle and is slidably arranged on two line slideways; Drive motors, drives electro spindle retainer linearly slide; And grating, to be fixedly installed on base plate and to be positioned at the side of electro spindle, for feeding back the signal of the position of the cutter of axis feeding system.Position feedback system comprises: two line slide rails, are arranged on base plate, is positioned at the outside of two line slideways of axis feeding system and parallel with two line slideways of axis feeding system; Two slide blocks, each skid is arranged on a corresponding line slide rail; Connecting plate, is fixedly connected with two slide blocks, is provided with the opening of handle of a knife and the cutter discrepancy supplying axis feeding system; Hold-down head, side is fixedly connected on connecting plate, and opposite side contacts and compresses by the surface of counter boring workpiece in counter boring process, and has the central opening being greater than shank diameter; Two cylinders, are arranged on base plate, and each cylinder has and is fixed on the cylinder body on base plate and the piston rod in and out of cylinder body, and the outer end of each piston rod is fixedly connected on a corresponding slide block, to drive this correspondence slide block along a corresponding line slide rail slip; And micropulse displacement transducer, for detecting the position of hold-down head and feeding back detection signal.Electric control system comprises: analog quantity/digital quantity signal modular converter, and communication connection micropulse displacement transducer, receives the detection signal of the position of the hold-down head of micropulse displacement transducer feedback, and convert this detection signal to digital quantity and feed back; Programmable Logic Controller, communication connection analog quantity/digital quantity signal modular converter, reads the digital quantity of analog quantity/digital quantity signal modular converter feedback, and preserves this digital quantity; And digital control system, record the O ' and treat the dark h of the nest of counter boring workpiece at zero point of the O at zero point of grating, micropulse displacement transducer in its memory, the grating of communication connection Programmable Logic Controller and axis feeding system, reads the signal of the position of the cutter of the grating feedback of digital quantity and the axis feeding system stored in Programmable Logic Controller.Wherein, before counter boring operation starts, 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 detection signal of the home position C of the hold-down head of micropulse displacement transducer feedback, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller reads the digital quantity of analog quantity/digital quantity signal modular converter feedback, and preserve this digital quantity, digital control system receives the signal of the position T of the cutter of grating feedback, and the digital quantity 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, afterwards, the opposite side of hold-down head via the piston rod of two cylinders action again via two slide blocks and connecting plate connection and move, arrive by the surface of counter boring workpiece, contact and compress by the surface of counter boring workpiece, now micropulse displacement transducer detects the primary importance W of hold-down head
1and feeding back detection signal, analog quantity/digital quantity signal modular converter receives the primary importance W of the hold-down head of micropulse displacement transducer feedback
1detection signal, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller reads the digital quantity of analog quantity/digital quantity signal modular converter feedback, and preserve this digital quantity, digital control system receives the primary importance W of the hold-down head of the micropulse displacement transducer feedback that Programmable Logic Controller reads
1the digital quantity of detection signal, digital control system, by the O ' and treat the dark h of the nest of counter boring workpiece at zero point of the O at zero point of record grating in memory, micropulse displacement transducer, calculates the preliminary feeding depth d of counter boring,
start counter boring operation, the electro spindle of axis feeding system drives electro spindle retainer linearly slide and carry out preliminary feed motion via drive motors, the feeding depth of preliminary feed motion is d, cutter is arrived by the surface of counter boring workpiece through the opening of connecting plate, the central opening of hold-down head successively, carries out counter boring operation to by counter boring workpiece, after counter boring just stepping terminates, cutter hovers, and now micropulse displacement transducer detects the second place W of hold-down head
2and feeding back detection signal, analog quantity/digital quantity signal modular converter receives the second place W of the hold-down head of micropulse displacement transducer feedback
2detection signal, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller reads the digital quantity of analog quantity/digital quantity signal modular converter feedback, and preserve this digital quantity, digital control system receives the second place W of the hold-down head of the micropulse displacement transducer feedback that Programmable Logic Controller reads
2detection signal digital quantity and calculate the primary importance W of hold-down head
1with second place W
2distance, delta in feed direction,
the electro spindle of axis feeding system drives electro spindle retainer linearly slide and carry out feed motion again via drive motors, and the feeding depth of feed motion is again the primary importance W of hold-down head
1with second place W
2distance, delta in feed direction, makes cutter continue to carry out counter boring operation to by counter boring workpiece.
Beneficial effect of the present invention is as follows:
Counter boring device of the present invention based on being carried out counter boring severity control by the surface location of counter boring workpiece, completing counter boring depth compensation, thus ensures the precision of the counter boring degree of depth.
Adopt micropulse displacement transducer as by the detecting element of the surface location of counter boring workpiece, adopt 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 of carrying out axis Position Control in digital control system with reference to other positional informations, thus solve the 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 data of the surface location of counter boring workpiece, instead of acquisition and processing is carried out to the data of processing overall process, decrease the collection capacity of data, alleviate the data processing load of digital control system, thus improve the stability of counter boring device overall operation.
Adopt cylinder as the executive component of hold-down head, cylinder has the advantage of flexibility, can avoid the issuable collision problem of executive component adopting motor as hold-down head.
Accompanying drawing explanation
Fig. 1 is the stereogram according to counter boring device of the present invention;
Fig. 2 is the stereogram of the hold-down head of position feedback system according to counter boring device of the present invention;
Fig. 3 is the control principle drawing of the electric control system according to counter boring device of the present invention;
Fig. 4 is the schematic diagram calculation of the electric control system according to counter boring device of 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 motors 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 in detail with reference to the accompanying drawings according to counter boring device of the present invention.
Referring to figs. 1 through Fig. 3, counter boring device according to the present invention comprises: base plate 1, axis feeding system 2, position feedback system 3 and electric control system 4.Axis feeding system 2 comprises: electro spindle 21, provides rotary motion (can realize high-speed, high precision to rotate); 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 motors 26, driving electro spindle retainer 25 linearly guide rail 24 slides; And grating 27, to be fixedly installed on base plate 1 and to be positioned at the side of electro spindle 21, for feeding back the signal of the position of the cutter 23 of axis feeding system 2.Position feedback system 3 comprises: two line slide rails 31, are arranged on base plate 1, is positioned at the outside of two line slideways 24 of axis feeding system 2 and parallel with two line slideways 24 of axis feeding system 2; Two slide blocks 32, each slide block 32 is slidably arranged on a corresponding line slide rail 31; Connecting plate 33, is fixedly connected with two slide blocks 32, be provided with for axis feeding system 2 handle of a knife 22 and cutter 23 opening 331 of coming in and going out; Hold-down head 35, side is fixedly connected on connecting plate 33, and opposite side contacts and compresses by the surface of counter boring workpiece in counter boring process, and has the central opening 351 being greater than handle of a knife 22 diameter; Two cylinders 36, be arranged on base plate 1, each cylinder 36 has and is fixed on the cylinder body 361 on base plate 1 and the piston rod 362 in and out of cylinder body 361, and the outer end of each piston rod 362 is fixedly connected on a corresponding slide block 32, slides along a line slide rail 31 of correspondence to drive this correspondence slide block 32; And micropulse displacement transducer 37, for detecting the position of hold-down head 35 and feeding back detection signal.Electric control system 4 comprises: analog quantity/digital quantity signal modular converter 41, communication connection micropulse displacement transducer 37, receive the detection signal of the position of the hold-down head 35 that micropulse displacement transducer 37 feeds back, and convert this detection signal to digital quantity and feed back; Programmable Logic Controller 42, communication connection analog quantity/digital quantity signal modular converter 41, reads the digital quantity that analog quantity/digital quantity signal modular converter 41 feeds back, and preserves this digital quantity; And digital control system 43, record the O ' and treat the dark h of the nest of counter boring workpiece at zero point of the O at zero point of grating 27, micropulse displacement transducer 37 in its memory, the grating 27 of communication connection Programmable Logic Controller 42 and axis feeding system 2, the signal of the position of the cutter 23 that the grating 27 reading digital quantity and the axis feeding system 2 stored in Programmable Logic Controller 42 feeds back.Wherein, before counter boring operation starts, grating 27 feeds back the signal of the position T of cutter 23, 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 detection signal of the home position C of the hold-down head 35 that micropulse displacement transducer 37 feeds back, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller 42 reads the digital quantity that analog quantity/digital quantity signal modular converter 41 feeds back, and preserve this digital quantity, first digital control system 43 receives the signal of the position T of the cutter 23 that grating 27 feeds back, and the digital quantity of the detection signal of the home position C of the hold-down head 35 of micropulse displacement transducer 37 feedback of Programmable Logic Controller 42 reading, afterwards, the opposite side of hold-down head 35 via the piston rod 362 of two cylinders 36 action again via two slide blocks 32 and connecting plate 33 connection and move, arrive by the surface of counter boring workpiece, contact and compress by the surface of counter boring workpiece, now micropulse displacement transducer 37 detects the primary importance W of hold-down head 35
1and feeding back detection signal, analog quantity/digital quantity signal modular converter 41 receives the primary importance W of the hold-down head 35 that micropulse displacement transducer 37 feeds back
1detection signal, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller 42 reads the digital quantity that analog quantity/digital quantity signal modular converter 41 feeds back, and preserve this digital quantity, digital control system 43 receives the primary importance W of the hold-down head 35 of micropulse displacement transducer 37 feedback that Programmable Logic Controller 42 reads
1the digital quantity of detection signal, digital control system 43, by the O ' and treat the dark h of the nest of counter boring workpiece at zero point of the O at zero point of record grating 27 in memory, micropulse displacement transducer 37, calculates the preliminary feeding depth d of counter boring,
start counter boring operation, the electro spindle 21 of axis feeding system 2 via drive motors 26 drive electro spindle retainer 25 linearly guide rail 24 slide and carry out preliminary feed motion, the feeding depth of preliminary feed motion is d, make cutter 23 arrive by the surface of counter boring workpiece through the opening 331 of connecting plate 33, the central opening 351 of hold-down head 35 successively, carry out counter boring operation to by counter boring workpiece, after counter boring just stepping terminates, cutter 23 hovers, and now micropulse displacement transducer 37 detects the second place W of hold-down head 35
2and feeding back detection signal, analog quantity/digital quantity signal modular converter 41 receives the second place W of the hold-down head 35 that micropulse displacement transducer 37 feeds back
2detection signal, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller 42 reads the digital quantity that analog quantity/digital quantity signal modular converter 41 feeds back, and preserve this digital quantity, digital control system 43 receives the second place W of the hold-down head 35 of micropulse displacement transducer 37 feedback that Programmable Logic Controller 42 reads
2detection signal digital quantity and calculate the primary importance W of hold-down head 35
1with second place W
2distance, delta in feed direction,
the electro spindle 21 of axis feeding system 2 via drive motors 26 drive electro spindle retainer 25 linearly guide rail 24 slide and carry out feed motion again, and the feeding depth of feed motion is again the primary importance W of hold-down head 35
1with second place W
2distance, delta in feed direction, makes cutter 23 continue to carry out counter boring operation to by counter boring workpiece.
Here, it should be noted that, before counter boring device comes into operation, back to zero operation can be carried out respectively to axis feeding system 2 and position feedback system 3, calibrate the position T of now cutter 23 and grating 27 zero point O relative distance and the home position C of hold-down head 35 and micropulse displacement transducer 37 zero point O ' relative distance, direct fixed storage and be recorded in the memory of digital control system 43, as the fixed value of counter boring device setting, in other words, except first time uses counter boring device, then do not need again to demarcate before counter boring operation starts the position T of cutter 23 and grating 27 zero point O relative distance and the home position C of hold-down head 35 and micropulse displacement transducer 37 zero point O ' relative distance.Thus, the efficiency of counter boring device of the present invention can be improved.
In addition, also it should be noted that, the detection of the position of cutter 23 refer to cutter 23 in the face of by the detection of the position of the side on the surface of counter boring workpiece (the counter boring sword starting point of such as cutter 23), the detection of the position of hold-down head 35 refers to that hold-down head 35 is in the face of by the detection of the position of the side on the surface of counter boring workpiece (such as the front end face of hold-down head 35).
Counter boring device of the present invention based on being carried out counter boring severity control by the surface location of counter boring workpiece, completing counter boring depth compensation, thus ensures the precision of the counter boring degree of depth.
Adopt micropulse displacement transducer 37 as by the detecting element of the surface location of counter boring workpiece, adopt grating 27 as the detecting element of the position of cutter 23, by analog quantity/digital quantity signal conversion module 41 and Programmable Logic Controller 42, the data collected are transferred in digital control system 43, solve the problem of carrying out axis Position Control in digital control system with reference to other positional informations, thus solve the 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 data of the surface location of counter boring workpiece, instead of acquisition and processing is carried out to the data of processing overall process, decrease the collection capacity of data, alleviate the data processing load of digital control system, thus improve the stability of counter boring device overall operation.
Adopt cylinder 36 as the executive component of hold-down head 35, cylinder has the advantage of flexibility, can avoid the issuable collision problem of executive component adopting motor as hold-down head 35.
In an embodiment of position feedback system 3, with reference to Fig. 1, position feedback system 3 also can comprise: cylinder retainer 38, is fixedly installed on base plate 1, is fixedly connected with base plate 1 and cylinder 36.
In an embodiment of counter boring device according to the present invention, the central axes of the opening 331 of connecting plate 33, the central axis of the central opening 351 of hold-down head 35 and the cutter 23 of axis feeding system 2.
In an embodiment of counter boring device according to the present invention, with reference to Fig. 2, hold-down head 35 can be drum.In one embodiment, with reference to Fig. 2, hold-down head 35 contacts and compresses and be can be staircase structural model by the side on the surface of counter boring workpiece.Hold-down head 35 is contacted and compresses to be reduced by the size of the side on the surface of counter boring workpiece as far as possible, close to can ensure cutter 23 normal through dimension limit, the detection endface position making hold-down head 35 more close to by the Working position on the surface of counter boring workpiece, thus reflects that in the position of workpiece and process, the location of workpiece is due to the change of stressed generation truly.
In an embodiment of counter boring device according to the present invention, the central axis of two cylinders 36 of position feedback system 3 can be parallel to the central axis of the cutter 23 of axis feeding system 2 respectively and be arranged symmetrically with.
In an embodiment of counter boring device according to the present invention, with reference to Fig. 1, micropulse displacement transducer 37 can be fixed in one of them of two slide blocks 32.
In an embodiment of counter boring device according to the present invention, micropulse displacement transducer 37 can be fixedly installed on one of them in two cylinders 36.
In an embodiment of counter boring device according to the present invention, drive motors 26 can adopt screw nut driven mechanism to drive electro spindle retainer 25 linearly guide rail 24 slide.
Claims (8)
1. a counter boring device, is characterized in that, comprising:
Base plate (1);
Axis feeding system (2), comprising:
Electro spindle (21), provides 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 motors (26), drives electro spindle retainer (25) linearly guide rail (24) slip; And
Grating (27), is fixedly installed on base plate (1) and goes up and be positioned at the side of electro spindle (21), for feeding back the signal of the position of the cutter (23) of axis feeding system (2);
Position feedback system (3), comprising:
Two line slide rails (31), be arranged on base plate (1), be positioned at the outside of two line slideways (24) of axis feeding system (2) and parallel with two line slideways (24) of axis feeding system (2);
Two slide blocks (32), each slide block (32) is slidably arranged on a corresponding line slide rail (31);
Connecting plate (33), is fixedly connected with two slide blocks (32), is provided with the opening (331) supplying the handle of a knife (22) of axis feeding system (2) and cutter (23) to come in and go out;
Hold-down head (35), side is fixedly connected on connecting plate (33), and opposite side contacts and compresses by the surface of counter boring workpiece in counter boring process, and has the central opening (351) being greater than handle of a knife (22) diameter;
Two cylinders (36), be arranged on base plate (1), each cylinder (36) has and is fixed on the cylinder body (361) on base plate (1) and the piston rod (362) in and out of cylinder body (361), the outer end of each piston rod (362) is fixedly connected on a corresponding slide block (32), slides along a corresponding line slide rail (31) to drive this correspondence slide block (32); And
Micropulse displacement transducer (37), for detecting the position of hold-down head (35) and feeding back detection signal; And
Electric control system (4), comprising:
Analog quantity/digital quantity signal modular converter (41), communication connection micropulse displacement transducer (37), receive the detection signal of the position of the hold-down head (35) that micropulse displacement transducer (37) is fed back, and convert this detection signal to digital quantity and feed back;
Programmable Logic Controller (42), communication connection analog quantity/digital quantity signal modular converter (41), reads the digital quantity that analog quantity/digital quantity signal modular converter (41) feeds back, and preserves this digital quantity; And
Digital control system (43), record the O ' and treat the dark h of the nest of counter boring workpiece at zero point of the O at zero point of grating (27), micropulse displacement transducer (37) in its memory, the grating (27) of communication connection Programmable Logic Controller (42) and axis feeding system (2), the signal of the position of the cutter (23) that the grating (27) reading digital quantity and the axis feeding system (2) stored in Programmable Logic Controller (42) feeds back;
Wherein, before counter boring operation starts, the signal of the position T of grating (27) feedback cutter (23), 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 detection signal of the home position C of the hold-down head (35) that micropulse displacement transducer (37) is fed back, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller (42) reads the digital quantity that analog quantity/digital quantity signal modular converter (41) feeds back, and preserve this digital quantity, digital control system (43) receives the signal of the position T of the cutter (23) that grating (27) feeds back, and the digital quantity of the detection signal of the home position C of hold-down head (35) that the micropulse displacement transducer (37) that reads of Programmable Logic Controller (42) feeds back, afterwards, the opposite side of hold-down head (35) via the piston rod (362) of two cylinders (36) action again via two slide blocks (32) and connecting plate (33) (34) connection and move, arrive by the surface of counter boring workpiece, contact and compress by the surface of counter boring workpiece, now micropulse displacement transducer (37) detects the primary importance W of hold-down head (35)
1and feeding back detection signal, analog quantity/digital quantity signal modular converter (41) receives the primary importance W of the hold-down head (35) that micropulse displacement transducer (37) is fed back
1detection signal, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller (42) reads the digital quantity that analog quantity/digital quantity signal modular converter (41) feeds back, and preserve this digital quantity, the primary importance W of the hold-down head (35) that the micropulse displacement transducer (37) that digital control system (43) reception Programmable Logic Controller (42) reads feeds back
1the digital quantity of detection signal, digital control system (43) is by the O ' and treat the dark h of the nest of counter boring workpiece at zero point of the O at zero point of record grating (27) in memory, micropulse displacement transducer (37), calculate the preliminary feeding depth d of counter boring
Start counter boring operation, the electro spindle (21) of axis feeding system (2) via drive motors (26) drive electro spindle retainer (25) linearly guide rail (24) slide and carry out preliminary feed motion, the feeding depth of preliminary feed motion is d, cutter (23) is arrived by the surface of counter boring workpiece through the opening (331) of connecting plate (33), the central opening (351) of hold-down head (35) successively, carries out counter boring operation to by counter boring workpiece;
After counter boring just stepping terminates, cutter (23) hovers, and now micropulse displacement transducer (37) detects the second place W of hold-down head (35)
2and feeding back detection signal, analog quantity/digital quantity signal modular converter (41) receives the second place W of the hold-down head (35) that micropulse displacement transducer (37) is fed back
2detection signal, and convert this detection signal to digital quantity and feed back, Programmable Logic Controller (42) reads the digital quantity that analog quantity/digital quantity signal modular converter (41) feeds back, and preserve this digital quantity, the second place W of the hold-down head (35) that the micropulse displacement transducer (37) that digital control system (43) reception Programmable Logic Controller (42) reads feeds back
2detection signal digital quantity and calculate the primary importance W of hold-down head (35)
1with second place W
2distance, delta in feed direction,
the electro spindle (21) of axis feeding system (2) via drive motors (26) drive electro spindle retainer (25) linearly guide rail (24) slide and carry out feed motion again, and the feeding depth of feed motion is again the primary importance W of hold-down head (35)
1with second place W
2distance, delta in feed direction, makes cutter (23) continue to carry out counter boring operation to by counter boring workpiece.
2. counter boring device according to claim 1, is characterized in that, position feedback system (3) also comprises:
Cylinder retainer (38), is fixedly installed on base plate (1), is fixedly connected with base plate (1) and cylinder (36).
3. counter boring device according to claim 1, it is characterized in that, the central axes of the opening (331) of connecting plate (33), the central axis of the central opening (351) of hold-down head (35) and the cutter (23) of axis feeding system (2).
4. counter boring device according to claim 1, is characterized in that, hold-down head (35) is drum.
5. counter boring device according to claim 4, is characterized in that, hold-down head (35) contacts and compresses by the side on the surface of counter boring workpiece is staircase structural model.
6. counter boring device according to claim 1, it is characterized in that, the central axis of two cylinders (36) of position feedback system (3) is parallel to the central axis of the cutter (23) of axis feeding system (2) respectively and is arranged symmetrically with.
7. counter boring device according to claim 1, is characterized in that, micropulse displacement transducer (37) is fixed in one of them of two slide blocks (32).
8. counter boring device according to claim 1, is characterized in that, micropulse displacement transducer (37) is fixedly installed on one of them in two cylinders (36).
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| CN201510024825.1A CN104551854B (en) | 2015-01-19 | 2015-01-19 | Counter boring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510024825.1A CN104551854B (en) | 2015-01-19 | 2015-01-19 | Counter boring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105689627A (en) * | 2016-03-30 | 2016-06-22 | 宜兴市融兴铸造有限公司 | Main shaft feeding mechanism of aircraft riveting machine |
| CN106907981A (en) * | 2017-01-09 | 2017-06-30 | 中国商用飞机有限责任公司 | Dimple depth measuring device and dimple depth measuring method |
| CN114179114A (en) * | 2022-02-17 | 2022-03-15 | 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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2015
- 2015-01-19 CN CN201510024825.1A patent/CN104551854B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689627A (en) * | 2016-03-30 | 2016-06-22 | 宜兴市融兴铸造有限公司 | Main shaft feeding mechanism of aircraft riveting machine |
| CN106907981A (en) * | 2017-01-09 | 2017-06-30 | 中国商用飞机有限责任公司 | Dimple depth measuring device and dimple depth measuring method |
| 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 |
| CN114179114A (en) * | 2022-02-17 | 2022-03-15 | 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 |
| 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 |
| CN118123087B (en) * | 2024-04-30 | 2024-08-09 | 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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| CN104551854B (en) | 2016-09-21 |
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