CN106735324A - Globoid cam processing detection all-in-one and online test method - Google Patents
Globoid cam processing detection all-in-one and online test method Download PDFInfo
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- CN106735324A CN106735324A CN201710200032.XA CN201710200032A CN106735324A CN 106735324 A CN106735324 A CN 106735324A CN 201710200032 A CN201710200032 A CN 201710200032A CN 106735324 A CN106735324 A CN 106735324A
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- globoid cam
- cutter
- globoid
- drive mechanism
- measuring head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/18—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning crankshafts, eccentrics, or cams, e.g. crankpin lathes
-
- 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
- B23Q17/2266—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 of a tool relative to a workpiece-axis
-
- 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
- B23Q3/1556—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of non-rotary tools
- B23Q3/15573—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of non-rotary tools the tool being taken from a storage device and transferred to a tool holder by means of transfer devices
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- Mechanical Engineering (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
The invention discloses a kind of globoid cam processing detection all-in-one, it is related to field of electromechanical integration, it is intended to which measurement efficiency is low caused by solving handling repeatedly of the prior art, the low problem of certainty of measurement.Automatic tool changer including tool magazine Yu swinging mechanical hand, tool magazine is provided with cutter and contact measuring head；Manipulator is used to realize exchanging for process tool and contact measuring head that contact measuring head to be used to measure and obtain the mismachining tolerances such as the centre-to-centre spacing error and Profile error of globoid cam indirectly.Wherein the 3rd drive mechanism carries out the adjustment of centre-to-centre spacing according to the error amount of measurement, improves machining accuracy.The present invention also provides a kind of online test method, based on above-mentioned globoid cam processing detection all-in-one；There is detection efficiency and high precision, the processing efficiency and crudy of globoid cam is improve.
Description
Technical field
The present invention relates to field of electromechanical integration, in particular to a kind of globoid cam processing detection all-in-one and
Line detecting method.
Background technology
Cambered surface cam mechanism is made up of arc surfaced indexing cam and driven member, with transmission speed it is fast, that indexing accuracy is high etc. is excellent
Point, is widely used in the fields such as various light industry and machinery, textile machine and machining center.But it is convex due to arc surfaced indexing cam
Wheel profile is the Space Free-Form Surface that can not be opened up, thus processing to globoid cam and surface error detection exist it is very big tired
Difficulty, lacks corresponding detection means and converted products precision is detected.
It is main using three coordinate measurements, grating measuring device etc. at present for the metering system of globoid cam mismachining tolerance
Measuring apparatus are measured to machined product.But this off-line checking method needs converted products to be removed just from lathe
Can measure；Not only assembly and disassembly are bothered repeatedly, and there is resetting error, and so as to cause measurement efficiency low, certainty of measurement is low
The problems such as.
The content of the invention
The first purpose of embodiments of the invention is to provide a kind of globoid cam of use dual AC power reference axis linkage to add
Work detects all-in-one, it is intended to which measurement efficiency is low caused by solving handling repeatedly of the prior art, the low problem of machining accuracy.
Including tool magazine and the automatic tool changer of swinging mechanical hand, tool magazine is provided with cutter and contact measuring head；Manipulator is used for
Realize exchanging for process tool and contact measuring head, contact measuring head be used to being measured from the centre-to-centre spacing error of globoid cam with
The mismachining tolerances such as Profile error；Wherein the 3rd drive mechanism carries out the adjustment of centre-to-centre spacing according to the error amount of measurement, that is, drive institute
Workbench is stated closer or far from the cutter spindle, machining accuracy is improve.The processing of globoid cam processing detection all-in-one
And detect simple to operate, the characteristics of possess detection efficiency and high precision, greatly improve the processing efficiency of globoid cam and process matter
Amount, with good application value, with preferable economic benefit and social benefit.
The second purpose of embodiments of the invention is to provide a kind of online test method, is added based on above-mentioned globoid cam
Work detects all-in-one；Contacted with globoid cam profile surface by contact measuring head, biasing a side head radius with tested profile surface obtains
Measuring route, contact measuring head is measured with a position trigger-type mensuration in measurement process, to each point in measuring route
Actual coordinate value is contrasted with theoretical coordinate value, and the mismachining tolerances such as the centre-to-centre spacing error and Profile error of globoid cam are obtained indirectly；
Again by the 3rd drive mechanism according to centre-to-centre spacing error, drive workbench closer or far from cutter spindle with real-time adjustment center
Away from.The online test method is simple to operate, efficiently solves the inspection of centre-to-centre spacing mismachining tolerance caused by assembly and disassembly repeatedly
Difficult technical problem is surveyed, there is detection efficiency and high precision, improve the processing efficiency and processing matter of globoid cam
Amount.
What embodiments of the invention were realized in：
Globoid cam processing detection all-in-one, including support, main spindle box and automatic tool changer；Support includes thering is supporting
The pedestal in face, the panoramic table on bearing-surface and the column for being vertically connected at bearing-surface；Main spindle box is located at column；On bearing-surface
It is provided with the first drive mechanism for extending in a first direction, and the second drive mechanism for extending in a second direction；Panoramic table and
One drive mechanism and the transmission of the second drive mechanism coordinate.Automatic tool changer includes the tool magazine and rotary machinery located at main spindle box
Hand, tool magazine is placed with cutter and contact measuring head；Main spindle box is additionally provided with the cutter spindle for fixed cutting tool and contact measuring head,
Manipulator is arranged between tool magazine and cutter spindle, for realizing exchanging for cutter and contact measuring head.Panoramic table is provided with solid
Determine the workbench and the 3rd drive mechanism of globoid cam, the 3rd drive mechanism is connected with table drive, for driving workbench
Closer or far from cutter spindle.
Inventor has found：It is main using three coordinate measurements, grating at present for the metering system of globoid cam mismachining tolerance
The measuring apparatus such as measurement apparatus are measured to machined product.But this off-line checking method is needed converted products slave
Being removed on bed can just measure；Not only assembly and disassembly are bothered repeatedly, and there is resetting error, so as to cause measurement efficiency low,
The low problem of certainty of measurement.
For such case is solved, inventor devises a kind of five axle globoid cams of use dual AC power reference axis linkage and adds
Work detects all-in-one, it is intended to which measurement efficiency is low caused by solving handling repeatedly of the prior art, the low problem of certainty of measurement.
The dual AC power linkage of transverse movement, lengthwise movement and panoramic table and globoid cam that it possesses workbench, it is right to carry out
Processed in globoid cam profile surface and moved with detection.Automatic tool changer including tool magazine Yu swinging mechanical hand, manipulator is used for
Realize exchanging for process tool and contact measuring head.Because globoid cam cam curved surface is three-dimensional space curved surface, by the contact
Gauge head detects 3 d space coordinate data, and the curved surface with setting in system is compared analysis, obtains the center of globoid cam
Away from mismachining tolerances such as error and Profile errors, and then lathe is fed back to again be adjusted machined parameters, wherein the 3rd drive mechanism
For adjusting the centre-to-centre spacing between globoid cam and cutter spindle.The processing of globoid cam processing detection all-in-one and detection behaviour
Make simple, the characteristics of possess detection efficiency and high precision, processing and employ developed macroprogram milling in detecting and detection is followed
Ring, greatly improves the processing efficiency and crudy of globoid cam, with good application value, with preferable economic benefit
And social benefit.
In an embodiment of the present embodiment：
Automatic tool changer also includes the 4th motor, output shaft and the cambered surface cam mechanism with globoid cam axle；The
Four motors are used to drive globoid cam axle to rotate, and output shaft and globoid cam axle are connected, for drive output shaft perpendicular to
Globoid cam axle is rotated；Manipulator is connected to output shaft.
In an embodiment of the present embodiment：
Tool magazine is arranged at main spindle box with respect on the side of cutter spindle；Manipulator possesses the rotation axis relative to output shaft
Two symmetrical clamping parts, output shaft drives clamping part to be moved between tool magazine and cutter spindle.
In an embodiment of the present embodiment：
Clamping part includes being connected to the first paragraph and the second segment away from output shaft of output shaft；Second segment is to tool magazine or knife
The mounting surface for having main shaft extends.
In an embodiment of the present embodiment：
First drive mechanism includes the first leading screw being connected with panoramic table for extending in a first direction；First leading screw connects
It is connected to the first motor；The first grating scale for detecting panoramic table stroke, first grating scale and the first electricity are additionally provided with bearing-surface
Mechatronics.
In an embodiment of the present embodiment：
Second drive mechanism includes the second leading screw being connected with panoramic table for extending in a second direction；Second leading screw connects
It is connected to the second motor；The second grating scale for detecting panoramic table stroke, second grating scale and the second electricity are additionally provided with bearing-surface
Mechatronics.
In an embodiment of the present embodiment：
Workbench is provided with fixed support and tip holder；Fixed support is provided with central rotating shaft, for driving globoid cam
Rotated around horizontal axis；Fixed support is slidingly disposed on same axis with tip holder, for globoid cam to be withstood.
In an embodiment of the present embodiment：
Two closed slides are additionally provided with panoramic table；3rd drive mechanism includes the 3rd be connected with table drive
Thick stick；3rd leading screw is connected with the 3rd motor, for driving workbench along closed slide closer or far from cutter spindle；On panoramic table
The 3rd grating scale for detecting table stroke is additionally provided with, the 3rd grating scale is electrically connected with the 3rd motor.
In an embodiment of the present embodiment：
Central rotating shaft is provided with the first encoder for gathering globoid cam corner, and cutter spindle is provided with for gathering cutter
Or the second encoder of contact measuring head corner.
Embodiments of the invention have the advantages that：
A kind of five axle globoid cams processing detection one of use dual AC power reference axis linkage that embodiments of the invention are provided
Body machine, it is intended to which measurement efficiency is low caused by solving handling repeatedly of the prior art, the low problem of certainty of measurement.It is wherein mechanical
Hand is used to realizing exchanging for process tool and contact measuring head, and contact measuring head is used for measurement and obtains globoid cam indirectly
The heart is away from the mismachining tolerance such as error and Profile error；3rd drive mechanism carries out the adjustment of centre-to-centre spacing according to the error amount of measurement, from
And measurement efficiency is low caused by avoiding assembly and disassembly repeatedly, machining accuracy is improve.Globoid cam processing detection all-in-one
Process and detect simple to operate, the characteristics of possess detection efficiency and high precision, greatly improve globoid cam processing efficiency and plus
Working medium amount.
Embodiments of the invention also provide a kind of online test method, based on above-mentioned globoid cam processing detection one
Machine, comprises the following steps：Contact measuring head is loaded on cutter spindle and maintains static, while panoramic table presses setting with central rotating shaft
The characteristics of motion is rotated；Contact measuring head is contacted with globoid cam profile surface, is obtained by biasing a side head radius with tested profile surface
Measuring route, contact measuring head is measured with a position trigger-type mensuration in measurement process, to each point in measuring route
Actual coordinate value is contrasted with theoretical coordinate value, and the mismachining tolerances such as the centre-to-centre spacing error and Profile error of globoid cam are obtained indirectly；
3rd drive mechanism drives workbench closer or far from cutter spindle to adjust centre-to-centre spacing according to centre-to-centre spacing error.
A kind of online test method that the present invention is provided has the advantages that：Online test method side simple to operate
Just, the technology of the detection difficult of mismachining tolerance such as centre-to-centre spacing error and Profile error caused by assembling and disassembling repeatedly is efficiently solved
Problem, has the advantages that detection efficiency and high precision, improves the processing efficiency and crudy of globoid cam.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structural representation at the first visual angle of globoid cam processing detection all-in-one in the embodiment of the present invention；
Fig. 2 is the structural representation at second visual angle of globoid cam processing detection all-in-one in the embodiment of the present invention；
Fig. 3 is the structural representation of panoramic table in the embodiment of the present invention；
Fig. 4 is the external structure schematic diagram of automatic tool changer in the embodiment of the present invention；
Fig. 5 is the internal structure schematic diagram of automatic tool changer in the embodiment of the present invention；
Fig. 6 is globoid cam centre-to-centre spacing error separation in the embodiment of the present invention.
Icon：100- globoid cams processing detection all-in-one；1- supports；10- bearing-surfaces；101- panoramic tables；102- works
Platform；103- columns；104- main spindle boxes；105- cutter spindles；106- fixed supports；107- tip holders；108- numerical control boxes；2- is certainly
Move knife system；20- tool magazines；21- manipulators；210- clamping parts；2101- first paragraphs；2102- second segments；22- output shafts；23-
Globoid cam axle；301- closed slides；The leading screws of 302- the 3rd.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting " should
It is interpreted broadly, for the ordinary skill in the art, can understands above-mentioned term in the present invention with concrete condition
Concrete meaning.
Embodiment
Fig. 1 is refer to, Fig. 1 shows that a kind of globoid cam of use dual AC power reference axis linkage that the present embodiment is provided adds
Work detects the concrete structure of all-in-one 100, carries digital control system and realizes automation mechanized operation；It include support 1, main spindle box 104 with
Automatic tool changer 2；Support 1 include with bearing-surface 10 pedestal and the panoramic table 101 on bearing-surface 10 with it is vertical
It is connected to the column 103 of bearing-surface 10；Main spindle box 104 is located at column 103.Automatic tool changer 2 is included located at main spindle box 104
Tool magazine 20 and swinging mechanical hand 21；Wherein manipulator 21 is used to realize exchanging for cutter and contact measuring head, so as to complete right
Processed in globoid cam profile surface and moved with detection.
Pedestal has relative end face, and one of end face is bearing-surface 10, and bearing-surface 10 is provided with panoramic table 101.With
Bearing-surface 10 is reference plane, and the direction extended along the both sides of the length direction of bearing-surface 10 is first direction, relatively, along bearing-surface
What the both sides of 10 widths extended is second direction.Bearing-surface 10 is provided with the sliding track mechanism and first for extending in a first direction
Leading screw, its first leading screw is connected with as the first motor of driving source；Panoramic table 101 is located on bearing-surface 10, with the first leading screw
Drive connection realizes the horizontal X-axis feed motion of lathe so as to be slided along sliding track mechanism.In order to further improve panoramic table 101
The accuracy of stroke, is also provided with the first grating scale electrically connected with the first motor on bearing-surface 10, forms closed loop servo system
System.
The sliding track mechanism and the second leading screw for extending in a second direction are additionally provided with bearing-surface 10, its second leading screw is connected with work
It is the second motor of driving source.Panoramic table 101 is connected so as to be slided along sliding track mechanism on bearing-surface 10 with the second lead screw transmission
It is dynamic, realize longitudinal Z axis feed motion of lathe.In order to further improve the accuracy of the stroke of panoramic table 101, on bearing-surface 10
The second grating scale electrically connected with the second motor is also provided with, closed loop servo system is formed.
Fig. 2 is refer to, panoramic table 101 is provided with the workbench 102 for processing globoid cam, and workbench 102 is provided with
Fixed support 106 and tip holder 107.Fixed support 106 is provided with central rotating shaft, is driven for driving cambered surface by servomotor
Cam is rotated around horizontal axis；Fixed support 106 and tip holder 107 are slidingly disposed on same axis, for by cambered surface
Cam withstands.It is worth noting that, figure 2 illustrates support 1 be provided with for control lathe realize automation processing
Numerical control box 108.
With further reference to Fig. 3, be additionally provided with panoramic table 101 two closed slides 301 extending in a first direction with
3rd leading screw 302, its 3rd leading screw 302 is connected with as the 3rd motor of driving source.Workbench 102 is located on panoramic table 101,
Be connected so as to being slided along closed slide 301 with the 3rd leading screw 302, realize workbench 102 closer or far from cutter spindle
105 feed motion.In order to further improve the accuracy of the stroke of workbench 102, it is also provided with panoramic table 101 and the 3rd
3rd grating scale of motor electrical connection, forms closed loop servo system.
Refer to Fig. 4 and combine shown in Fig. 1, Fig. 4 shows that the structure and all parts of automatic tool changer 2 are corresponding
Arrangement.Column 103 is connected perpendicular to bearing-surface 10 with pedestal, and column 103 is provided with main spindle box 104.The bag tool magazine of automatic tool changer 2
20 are placed with cutter and contact measuring head with swinging mechanical hand 21, tool magazine 20.Connection of the main spindle box 104 towards panoramic table 101
Face is provided with the cutter spindle 105 for extending in a second direction, and cutter spindle 105 is used for fixed cutting tool and contact measuring head.Wherein
Tool magazine 20 is arranged at main spindle box 104 with respect on the side of cutter spindle 105, and manipulator 21 is arranged at tool magazine 20 and cutter spindle
Between 105, for realizing exchanging for cutter and contact measuring head.In the present embodiment, to be arranged at main spindle box 104 relative for tool magazine 20
On the side of cutter spindle 105；In other specific embodiments, tool magazine 20 can be arranged at the optional position of main spindle box 104, match somebody with somebody
Close manipulator 21 and realize tool changing.
In this embodiment, it is preferred that, automatic tool changer 2 uses cambered surface cam mechanism；Refer to shown in Fig. 5, automatically
Tool changing device 2 includes the 4th motor, output shaft 22 and the cambered surface cam mechanism with globoid cam axle 23；4th motor is used for
Globoid cam axle 23 is driven to rotate, output shaft 22 is connected with globoid cam axle 23, for driving output shaft 22 perpendicular to arc
Rotation axis where face cam axle 23 is rotated；Manipulator 21 is connected to output shaft 22.In other specific embodiments, move certainly
Knife system 2 can also be other structures.
Referring once again to Fig. 4, manipulator 21 possesses two clamping parts symmetrical relative to the rotation axis of output shaft 22
210；Clamping part 210 includes being connected to the first paragraph 2101 and the second segment 2102 away from output shaft 22 of output shaft 22；Second
Section 2102 extends to the mounting surface of tool magazine 20 or cutter spindle 105.Output shaft 22 drives clamping part 210 in tool magazine 20 and cutter master
Rotated between axle 105, the tool changing operation of knife is drawn sword, exchanges cutter and contact measuring head and filled in realization.
In this embodiment, it is preferred that, central rotating shaft is provided with the first encoder for gathering globoid cam corner, cutter
Main shaft 105 is provided with the second encoder for gathering cutter or contact measuring head corner；Can be effectively by designing encoder
Solve central rotating shaft and there is the difficult technical problem of positioning precision because of compound motion with cutter spindle 105.
The present embodiment also provides a kind of online test method based on above-mentioned globoid cam processing detection all-in-one 100,
Comprise the following steps：Contact measuring head is loaded on maintaining static on cutter spindle 105, while panoramic table 101 and central rotating shaft are by setting
The fixed characteristics of motion is rotated；Contact measuring head is contacted with globoid cam profile surface, and a side head radius is biased by with tested profile surface
Measuring route is obtained, contact measuring head is measured with a position trigger-type mensuration in measurement process, to each in measuring route
The actual coordinate value of point is contrasted with theoretical coordinate value, the processing such as centre-to-centre spacing error and Profile error of globoid cam is obtained indirectly and is missed
Difference；Wherein the 3rd drive mechanism drives workbench 102 closer or far from cutter spindle 105 with adjustment according to centre-to-centre spacing error
The heart away from.
In order to further enable those skilled in the art to be more clearly understood from the present embodiment, below will to it is above-mentioned
In line detecting method, the computational methods to the machining center on globoid cam away from error are described in detail.
Table 1 is refer to, table 1 is globoid cam relevant parameter, it is convex by adding cambered surface of the corresponding boost line foundation such as Fig. 6
Wheel centre-to-centre spacing error separation.
Table 1
Refer to shown in Fig. 6, make boost line connection OB, BC, then BC (is contacted for the string of cam top cambered surface down-time period convex ridge
Formula gauge head is easy to the convex ridge width of measurement in the detection), BC hands over center line in D points, then OB=OC=rc, AB=r=ρ, and order
∠ AOB=α, ∠ BOD=β, BC=t.
In △ AOB, because
In △ BOD
Convex ridge width：
According to formula (1) can obtain to the theoretical value BC of cam down-time period width under parameter and contact measuring head actual measurement
Value BC ＇ are compared to judge centre-to-centre spacing error size, and centre-to-centre spacing is bigger than normal if BC ＇ ＞ BC, then need to readjust lathe
Centre-to-centre spacing is processed again；If BC ＇ ＜ BC, centre-to-centre spacing is less than normal, product is unsatisfactory for requiring.
By known to derivation above:Sin α=ρ/rc, sin β=t/ (2rc), α=π/z- β then has
Finally derive cam top cambered surface radius rc, computing formula is:
By instance analysis, the special machined parameters of globoid cam processing detection all-in-one 100 are set, by contact
Gauge head surveys cam down-time period convex ridge width, substitutes into formula (2) and calculates cam top cambered surface radius actual value rc＇, with theoretical value rcPhase
Than obtain centre-to-centre spacing error amount δ=| rc-rc'|；3rd drive mechanism carries out the amendment of centre-to-centre spacing according to centre-to-centre spacing error amount δ.
Because the cam contour of arc surfaced indexing cam is the Space Free-Form Surface that can not open up, whether accurate its profile profile surface is straight
Connect the transmission quality for having influence on mechanism；Prior art exists very big tired to the Surface Machining of globoid cam and error-detecting
It is difficult.And a kind of online test method that the present embodiment is provided, the centre-to-centre spacing error to globoid cam is realized by contact measuring head
With the detection of the mismachining tolerance such as Profile error, lathe is fed back to after then being analyzed by digital control system, so as to realize processing essence
The amendment of degree；The detection method has the advantages that detection efficiency and high precision, improves processing efficiency and the processing of globoid cam
Quality.
In sum, inventor devises a kind of five axle globoid cams processing detection one of use dual AC power reference axis linkage
Body machine, it is intended to which measurement efficiency is low caused by solving handling repeatedly of the prior art, the low problem of certainty of measurement.It possesses work
Make the dual AC power linkage of transverse movement, lengthwise movement and the panoramic table and globoid cam of platform, can carry out convex for cambered surface
Contoured surface is processed and moved with detection.Automatic tool changer including tool magazine Yu swinging mechanical hand, manipulator is used to realize processing
Cutter is exchanged with contact measuring head.Because globoid cam cam curved surface is three-dimensional space curved surface, detected by the contact measuring head
The curved surface set in 3 d space coordinate data, with system is compared analysis, obtain globoid cam centre-to-centre spacing error and
The mismachining tolerances such as Profile error, and then feed back to lathe again and be adjusted machined parameters, wherein the 3rd drive mechanism is used to adjust
Centre-to-centre spacing between globoid cam and cutter spindle.The processing and detection of globoid cam processing detection all-in-one are simple to operate,
Developed macroprogram milling is employed in the characteristics of possessing detection efficiency and high precision, processing and detection and detection is circulated, significantly
The processing efficiency and crudy of globoid cam are improved, with good application value, with preferable economic benefit and society
Benefit.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. globoid cam processing detects all-in-one, it is characterised in that：
Including support, main spindle box and automatic tool changer；The support is including the pedestal with bearing-surface, located at the bearing-surface
On panoramic table and the column for being vertically connected at the bearing-surface；The main spindle box is located at the column；Set on the bearing-surface
There are the first drive mechanism for extending in a first direction, and the second drive mechanism for extending in a second direction；The panoramic table with
First drive mechanism and second drive mechanism transmission coordinate；
The automatic tool changer includes the tool magazine and swinging mechanical hand located at the main spindle box, and the tool magazine is placed with cutter
With contact measuring head；The main spindle box is additionally provided with the cutter spindle for fixed cutting tool and the contact measuring head, the machinery
Hand is arranged between the tool magazine and the cutter spindle, for realizing exchanging for cutter and the contact measuring head；
The panoramic table is provided with the workbench and the 3rd drive mechanism of fixed globoid cam, the 3rd drive mechanism with it is described
Table drive is connected, for driving the workbench closer or far from the cutter spindle.
2. globoid cam processing according to claim 1 detects all-in-one, it is characterised in that：
The automatic tool changer also includes the 4th motor, output shaft and the cambered surface cam mechanism with globoid cam axle；Institute
The 4th motor is stated for driving the globoid cam axle to rotate, the output shaft is connected with the globoid cam axle, is used for
The output shaft is driven to be rotated perpendicular to the globoid cam axle；The manipulator is connected to the output shaft.
3. globoid cam processing according to claim 2 detects all-in-one, it is characterised in that：
The tool magazine is arranged on the side of the relatively described cutter spindle of the main spindle box；The manipulator possesses relative to described
Two symmetrical clamping parts of the rotation axis of output shaft, the output shaft drives the clamping part in the tool magazine and the cutter
Moved between main shaft.
4. globoid cam processing according to claim 3 detects all-in-one, it is characterised in that：
The clamping part includes being connected to the first paragraph and the second segment away from the output shaft of the output shaft；Described second
Section extends to the mounting surface of the tool magazine or the cutter spindle.
5. globoid cam processing according to claim 1 detects all-in-one, it is characterised in that：
First drive mechanism includes the first leading screw being connected with the panoramic table extended along the first direction；Institute
State the first leading screw and be connected with the first motor；The first grating for detecting the panoramic table stroke is additionally provided with the bearing-surface
Chi, the first grating scale is electrically connected with first motor.
6. globoid cam processing according to claim 5 detects all-in-one, it is characterised in that：
Second drive mechanism includes the second leading screw being connected with the panoramic table extended along the second direction；Institute
State the second leading screw and be connected with the second motor；The second grating for detecting the panoramic table stroke is additionally provided with the bearing-surface
Chi, the second grating scale is electrically connected with second motor.
7. globoid cam processing according to claim 1 detects all-in-one, it is characterised in that：
The workbench is provided with fixed support and tip holder；The fixed support is provided with central rotating shaft, for driving cambered surface
Cam is rotated around horizontal axis；The fixed support is slidingly disposed on same axis with the tip holder, for by arc
Face cam withstands.
8. globoid cam processing according to claim 7 detects all-in-one, it is characterised in that：
Two closed slides are additionally provided with the panoramic table；3rd drive mechanism includes what is be connected with the table drive
3rd leading screw；3rd leading screw is connected with the 3rd motor, close or remote along the closed slide for driving the workbench
From the cutter spindle；The 3rd grating scale for detecting the table stroke, the described 3rd are additionally provided with the panoramic table
Grating scale is electrically connected with the 3rd motor.
9. globoid cam processing according to claim 8 detects all-in-one, it is characterised in that：
The central rotating shaft is provided with the first encoder for gathering globoid cam corner, and the cutter spindle is provided with for gathering
The second encoder of cutter or the contact measuring head corner.
10. a kind of online test method, the globoid cam processing detection all-in-one based on any one of the claims 1-9,
It is characterized in that comprising the following steps：
Contact measuring head is loaded on cutter spindle and maintains static, while panoramic table is turned with central rotating shaft by the characteristics of motion of setting
It is dynamic；Contact measuring head is contacted with globoid cam profile surface, and measuring route is obtained by biasing a side head radius with tested profile surface,
Contact measuring head is measured with a position trigger-type mensuration in measurement process, to the actual coordinate value of each point in measuring route with
Theoretical coordinate value is contrasted, and the mismachining tolerances such as the centre-to-centre spacing error and Profile error of globoid cam are obtained indirectly；3rd drive mechanism
According to centre-to-centre spacing error, drive workbench closer or far from cutter spindle to adjust centre-to-centre spacing.
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