CN106735324B - Curved cam processing and testing integrated machine and online testing method - Google Patents
Curved cam processing and testing integrated machine and online testing method Download PDFInfo
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- CN106735324B CN106735324B CN201710200032.XA CN201710200032A CN106735324B CN 106735324 B CN106735324 B CN 106735324B CN 201710200032 A CN201710200032 A CN 201710200032A CN 106735324 B CN106735324 B CN 106735324B
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- globoid cam
- revolving platform
- cam
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- cutter
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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
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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
- 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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Abstract
本发明公开了一种弧面凸轮加工检测一体机，涉及机电一体化领域，旨在解决现有技术中的反复装卸而导致的测量效率低，测量精度低等问题。包括刀库与回转式机械手的自动换刀装置，刀库设有刀具与接触式测头；机械手用于实现加工刀具与接触式测头的交换，接触式测头用于测量而间接得到弧面凸轮的中心距误差与廓面误差等加工误差。其中第三驱动机构根据测量的误差值进行中心距的调整，提高了加工精度。本发明还提供一种在线检测方法，基于上述的弧面凸轮加工检测一体机；具有检测效率与精度高的优点，提高了弧面凸轮的加工效率和加工质量。
The invention discloses an integrated machine for processing and detecting a cambered cam, which relates to the field of electromechanical integration and aims to solve the problems of low measurement efficiency and low measurement accuracy caused by repeated loading and unloading in the prior art. Automatic tool changer including tool magazine and rotary manipulator. The tool magazine is equipped with tools and contact probes; the manipulator is used to exchange machining tools and contact probes, and the contact probes are used to measure and indirectly obtain arc surfaces Processing errors such as the center distance error of the cam and the profile error. The third drive mechanism adjusts the center distance according to the measured error value, thereby improving the machining accuracy. The present invention also provides an online detection method, which is based on the above-mentioned cambered cam processing and detection integrated machine, which has the advantages of high detection efficiency and high precision, and improves the processing efficiency and processing quality of the cambered cam.
Description
Technical field
The present invention relates to field of electromechanical integration, in particular to a kind of globoid cam process detection all-in-one machine and
Line detecting method.
Background technique
Cambered surface cam mechanism is made of arc surfaced indexing cam and driven member, and it is excellent to have that transmission speed is fast, indexing accuracy is high etc.
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
Taking turns 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 detects to converted products precision.
At present for the measurement method of globoid cam mismachining tolerance, mainly using three coordinate measurements, grating measuring device etc.
Measuring device measures machined product.But this off-line checking method needs are removed converted products from lathe
It can be carried out measurement；Not only assembly and disassembly bother repeatedly, and there are resetting errors, and low so as to cause measurement efficiency, measurement accuracy is low
The problems such as.
Summary of the invention
The first purpose of the embodiment of the present invention is to provide a kind of globoid cam using the linkage of dual AC power reference axis and adds
Work detects all-in-one machine, it is intended to the problems such as measurement efficiency is low caused by solving handling repeatedly in the prior art, and machining accuracy is low.
Including the automatic tool changer of tool magazine and swinging mechanical hand, tool magazine is equipped 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 be measured from the center of globoid cam away from error with
The mismachining tolerances such as Profile error；Wherein third driving mechanism according to the error amount of measurement carry out center away from adjustment, i.e., for driving
Dynamic workbench is moved relative to revolving platform, improves machining accuracy.The processing and detection of globoid cam processing detection all-in-one machine
It is easy to operate, have detection efficiency and feature with high accuracy, greatly improves the processing efficiency and processing quality of globoid cam, have
Good application value has preferable economic benefit and social benefit.
The second purpose of the embodiment of the present invention is to provide a kind of online test method, be added based on above-mentioned globoid cam
Work detects all-in-one machine；It is contacted by contact measuring head with globoid cam profile surface, biases a side head radius with tested profile surface and obtain
Measuring route, contact measuring head is measured in measurement process with point trigger-type mensuration, to each point in measuring route
Actual coordinate value and theoretical coordinate value compare, and obtain the center of globoid cam indirectly away from the mismachining tolerances such as error and Profile error；
Pass through third driving mechanism again according to center away from error, for driving workbench to move relative to revolving platform to adjust center in real time
Away from.The online test method is simple to operate, efficiently solves inspection of the center away from mismachining tolerance caused by assembly and disassembly repeatedly
Difficult technical problem is surveyed, has the advantages that detection efficiency and with high accuracy, improve the processing efficiency of globoid cam and processes matter
Amount.
The embodiment of the present invention is achieved in that
Globoid cam processing detection all-in-one machine, including base, spindle box and automatic tool changer；Base includes having bearing
The pedestal in face, the revolving platform on bearing surface and the column for being vertically connected at bearing surface；Spindle box is set to column；On bearing surface
Equipped with the first driving mechanism extended in a first direction, and the second driving mechanism extended in a second direction；Revolving platform and
One driving mechanism and the transmission cooperation of the second driving mechanism.Automatic tool changer includes the tool magazine and rotary machinery set on spindle box
Hand, tool magazine are placed with cutter and contact measuring head；Spindle box is additionally provided with the cutter spindle for fixed cutting tool and contact measuring head,
Manipulator is set between tool magazine and cutter spindle, for realizing exchanging for cutter and contact measuring head.Revolving platform is equipped with solid
Determine the workbench and third driving mechanism of globoid cam, third driving mechanism is connect with table drive, for driving workbench
It is moved relative to revolving platform.
Inventor's discovery: at present for the measurement method of globoid cam mismachining tolerance, three coordinate measurements, grating are mainly used
The measuring devices such as measuring device measure machined product.But this off-line checking method is needed converted products slave
Removing on bed can just measure；Not only assembly and disassembly bother repeatedly, and there are resetting errors, low so as to cause measurement efficiency,
The problems such as measurement accuracy is low.
For solve such case, inventor devise it is a kind of using dual AC power reference axis linkage five axis globoid cams add
Work detects all-in-one machine, it is intended to the problems such as measurement efficiency is low caused by solving handling repeatedly in the prior art, and measurement accuracy is low.
The linkage of the dual AC power of its transverse movement for having workbench, longitudinal movement and revolving platform and globoid cam, is able to carry out pair
It is processed in globoid cam profile surface and detects movement.Automatic tool changer including tool magazine and swinging mechanical hand, manipulator are used for
Realization process tool is exchanged with contact measuring head.Because globoid cam cam curved surface is three-dimensional space curved surface, pass through the contact
Gauge head detects 3 d space coordinate data, is compared analysis with the curved surface set in system, obtains the center of globoid cam
Away from the mismachining tolerances such as error and Profile error, and then lathe is fed back to again and is adjusted machined parameters, wherein third driving mechanism
For adjust the center between the rotation axis of globoid cam and the axis of rotation of revolving platform away from.Globoid cam processing detection one
The processing and detection of body machine are easy to operate, have detection efficiency and feature with high accuracy, use and developed in processing and detection
Macroprogram milling and detection circulation, greatly improve the processing efficiency and processing quality of globoid cam, have good application value,
With preferable economic benefit and social benefit.
In an embodiment of the present embodiment:
Automatic tool changer further includes the 4th motor, output shaft and the cambered surface cam mechanism with globoid cam axis；The
For driving globoid cam axis to rotate, output shaft and globoid cam axis are sequentially connected four motors, for drive output shaft perpendicular to
The rotation of globoid cam axis；Manipulator is connected to output shaft.
In an embodiment of the present embodiment:
Tool magazine is set to spindle box with respect on the side of cutter spindle；Manipulator has the rotation axis relative to output shaft
Symmetrical two clamping parts, output shaft drive clamping part to move between tool magazine and cutter spindle.
In an embodiment of the present embodiment:
Clamping part includes the first segment for being connected to output shaft and the second segment far from 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 driving mechanism includes the first lead screw with revolving platform transmission connection extended in a first direction；First lead screw connects
It is connected to first motor；The first grating scale for detecting revolving platform stroke, first grating scale and the first electricity are additionally provided on bearing surface
Mechatronics.
In an embodiment of the present embodiment:
Second driving mechanism includes the second lead screw with revolving platform transmission connection extended in a second direction；Second lead screw connects
It is connected to the second motor；The second grating scale for detecting revolving platform stroke, second grating scale and the second electricity are additionally provided on bearing surface
Mechatronics.
In an embodiment of the present embodiment:
Workbench is equipped with fixed bracket and tip holder；Fixed branch is provided with central rotating shaft, for driving globoid cam
It is rotated around horizontal axis；Fixed bracket and tip holder are slidingly disposed on same axis, for withstanding globoid cam.
In an embodiment of the present embodiment:
Two closed slides are additionally provided on revolving platform；Third driving mechanism includes the third silk connecting with table drive
Thick stick；Third lead screw is connected with third motor, for driving workbench to move along closed slide relative to revolving platform；On revolving platform also
Equipped with the third grating scale for detecting table stroke, third grating scale is electrically connected with third motor.
In an embodiment of the present embodiment:
Central rotating shaft is equipped with the first encoder for acquiring globoid cam corner, and cutter spindle is equipped with for acquiring cutter
Or the second encoder of contact measuring head corner.
The embodiment of the present invention has the advantages that
A kind of five axis globoid cams processing detection one using the linkage of dual AC power reference axis that the embodiment of the present invention provides
Body machine, it is intended to the problems such as measurement efficiency is low caused by solving handling repeatedly in the prior art, and measurement accuracy is low.It is wherein mechanical
Hand exchanges for realizing process tool and contact measuring head, and contact measuring head obtains in globoid cam indirectly for measuring
The heart is away from the mismachining tolerances such as error and Profile error；Third driving mechanism according to the error amount of measurement carry out center away from adjustment, from
And measurement efficiency is low caused by avoiding assembly and disassembly repeatedly, improves machining accuracy.Globoid cam processing detection all-in-one machine
Process and detect easy to operate, have detection efficiency and feature with high accuracy, greatly improve globoid cam processing efficiency and plus
Working medium amount.
The embodiment of the present invention also provides 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 fixed on cutter spindle, while revolving platform and central rotating shaft are by setting
Characteristics of motion rotation；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 in measurement process with point trigger-type mensuration, to each point in measuring route
Actual coordinate value and theoretical coordinate value compare, and obtain the center of globoid cam indirectly away from the mismachining tolerances such as error and Profile error；
Third driving mechanism according to center away from error, drive workbench to move relative to revolving platform with adjust center away from.
A kind of online test method provided by the invention has the advantages that online test method side easy to operate
Just, the technology of detection difficult of the center away from the mismachining tolerances such as error and Profile error caused by assembling and disassembling repeatedly is efficiently solved
Problem, have the advantages that detection efficiency with it is with high accuracy, improve the processing efficiency and processing quality of globoid cam.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram at the first visual angle of globoid cam processing detection all-in-one machine in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram at second of visual angle of globoid cam processing detection all-in-one machine in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of revolving platform 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 schematic diagram of internal structure of automatic tool changer in the embodiment of the present invention；
Fig. 6 is globoid cam center in the embodiment of the present invention away from error separation.
Icon: 100- globoid cam processing detection all-in-one machine；1- base；10- bearing surface；101- revolving platform；102- work
Platform；103- column；104- spindle box；105- cutter spindle；106- fixes bracket；107- tip holder；108- numerical control box；2- is certainly
Move knife system；20- tool magazine；21- manipulator；210- clamping part；2101- first segment；2102- second segment；22- output shaft；23-
Globoid cam axis；301- closed slide；302- third lead screw.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting " is answered
It is interpreted broadly, for the ordinary skill in the art, can understand above-mentioned term in the present invention with concrete condition
Concrete meaning.
Embodiment
Fig. 1 is please referred to, Fig. 1 shows a kind of globoid cam using the linkage of dual AC power reference axis provided in this embodiment and adds
Work detects the specific structure of all-in-one machine 100, carries digital control system and realizes automatic operation；It include base 1, spindle box 104 with
Automatic tool changer 2；Base 1 include the pedestal with bearing surface 10 and revolving platform 101 on bearing surface 10 with it is vertical
It is connected to the column 103 of bearing surface 10；Spindle box 104 is set to column 103.Automatic tool changer 2 includes being set to spindle box 104
Tool magazine 20 and swinging mechanical hand 21；Wherein the exchanging for realizing cutter and contact measuring head of manipulator 21, to complete pair
It is processed in globoid cam profile surface and detects movement.
Pedestal has opposite end face, and one of end face is bearing surface 10, and bearing surface 10 is equipped with revolving platform 101.With
Bearing surface 10 is reference plane, and the direction extended along the two sides of 10 length direction of bearing surface is first direction, relatively, along bearing surface
It is second direction that the two sides of 10 width directions, which extend,.Bearing surface 10 is equipped with the sliding track mechanism and first extended in a first direction
Lead screw, the first lead screw are connected with the first motor as driving source；Revolving platform 101 is set on bearing surface 10, with the first lead screw
Transmission connection realizes the lateral X-axis feed motion of lathe to slide along sliding track mechanism.In order to further increase revolving platform 101
The accuracy of stroke is also provided with the first grating scale being electrically connected with first motor on bearing surface 10, forms closed loop servo system
System.
The sliding track mechanism extended in a second direction and the second lead screw are additionally provided on bearing surface 10, the second lead screw is connected with work
For the second motor of driving source.Revolving platform 101 is set on bearing surface 10, is connect with the second lead screw transmission to sliding along sliding track mechanism
It is dynamic, realize longitudinal Z axis feed motion of lathe.In order to further increase the accuracy of 101 stroke of revolving platform, on bearing surface 10
It is also provided with the second grating scale being electrically connected with the second motor, forms closed loop servo system.
Referring to figure 2., revolving platform 101 is equipped with the workbench 102 for processing globoid cam, and workbench 102 is equipped with
Fixed bracket 106 and tip holder 107.Fixed bracket 106 is equipped with central rotating shaft, is driven by servo motor for driving cambered surface
Cam is rotated around horizontal axis；Fixed bracket 106 is slidingly disposed on same axis with tip holder 107, is used for cambered surface
Cam is withstood.It is worth noting that, the lathe that is used to control that base 1 is equipped with, which is shown in FIG. 2, realizes automation processing
Numerical control box 108.
With further reference to Fig. 3, be additionally provided on revolving platform 101 two closed slides 301 extending in a first direction with
Third lead screw 302, third lead screw 302 are connected with the third motor as driving source.Workbench 102 is set on revolving platform 101,
With third lead screw 302 be sequentially connected to along closed slide 301 slide, realize workbench 102 close to or far from cutter spindle
105 feed motion.In order to further increase the accuracy of 102 stroke of workbench, it is also provided on revolving platform 101 and third
The third grating scale of motor electrical connection, forms closed loop servo system.
Referring to figure 4. and as shown in connection with fig. 1, Fig. 4 show automatic tool changer 2 structure and all parts it is corresponding
Arrangement.Column 103 is connect perpendicular to bearing surface 10 with pedestal, and column 103 is equipped with spindle box 104.2 packet tool magazine of automatic tool changer
20 are placed with cutter and contact measuring head with swinging mechanical hand 21, tool magazine 20.Connection of the spindle box 104 towards revolving platform 101
Face is equipped with the cutter spindle 105 extended in a second direction, and cutter spindle 105 is used for fixed cutting tool and contact measuring head.Wherein
Tool magazine 20 is set to spindle box 104 with respect on the side of cutter spindle 105, and manipulator 21 is set to tool magazine 20 and cutter spindle
Between 105, for realizing exchanging for cutter and contact measuring head.In the present embodiment, it is opposite to be set to spindle box 104 for tool magazine 20
On the side of cutter spindle 105；In other specific embodiments, tool magazine 20 be can be set in any position of spindle box 104, be matched
It closes manipulator 21 and realizes tool changing.
In this embodiment, it is preferred that automatic tool changer 2 uses cambered surface cam mechanism；Shown in referring to figure 5., automatically
Tool changing device 2 includes the 4th motor, output shaft 22 and the cambered surface cam mechanism with globoid cam axis 23；4th motor is used for
Globoid cam axis 23 is driven to rotate, output shaft 22 and globoid cam axis 23 are sequentially connected, for driving output shaft 22 perpendicular to arc
Rotation axis rotation where face cam axis 23；Manipulator 21 is connected to output shaft 22.In other specific embodiments, move certainly
Knife system 2 or other structures.
Referring once again to Fig. 4, manipulator 21 has symmetrical two clamping parts of rotation axis relative to output shaft 22
210；Clamping part 210 includes the first segment 2101 for being connected to output shaft 22 and the second segment 2102 far from 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
It is rotated between axis 105, realizes and draw sword, exchange cutter and contact measuring head and fill the tool changing operation of knife.
In this embodiment, it is preferred that central rotating shaft is equipped with the first encoder for acquiring globoid cam corner, cutter
Main shaft 105 is equipped with the second encoder for acquiring cutter or contact measuring head corner；It can be effectively by design encoder
Solving central rotating shaft, there are the technical problems of positioning accuracy hardly possible due to 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 machine 100,
Comprise the following steps: contact measuring head is loaded on fixed on cutter spindle 105, while revolving platform 101 and central rotating shaft are by setting
Fixed characteristics of motion rotation；Contact measuring head is contacted with globoid cam profile surface, by biasing a side head radius with tested profile surface
Measuring route is obtained, contact measuring head is measured in measurement process with point trigger-type mensuration, to each in measuring route
The actual coordinate value and theoretical coordinate value of point compare, and the center for obtaining globoid cam indirectly is missed away from the processing such as error and Profile error
Difference；Wherein third driving mechanism drives workbench 102 to transport along closed slide 301 relative to revolving platform 101 according to center away from error
It is dynamic, adjust center between the rotation axis of globoid cam and the axis of rotation of revolving platform 101 away from.
In order to further enable those skilled in the art to be more clearly understood the present embodiment, below will to it is above-mentioned
In line detecting method, the machining center about globoid cam is described in detail away from the calculation method of error.
Table 1 is please referred to, table 1 is globoid cam relevant parameter, convex by adding the cambered surface that corresponding auxiliary line is established such as Fig. 6
Wheel center is away from error separation.
Table 1
It please refers to shown in Fig. 6, makees auxiliary line connection OB, BC, then BC is that the string of cam top cambered surface down-time period convex ridge (contacts
Formula gauge head is convenient for the convex ridge width of measurement in the detection), BC hands over center line in D point, then OB=OC=rc, AB=r=ρ, and enable
∠ AOB=α, ∠ BOD=β, BC=t.
In △ AOB, because
In △ BOD
Convex ridge width:
The actual measurement of the theoretical value BC and contact measuring head of given parameter lower cam down-time period width can be found out according to formula (1)
Value BC ' is compared with judgement center away from error size, and center needs to readjust lathe away from bigger than normal if BC ' > BC
Center away from being processed again；If BC ' < BC, away from less than normal, product is unsatisfactory for requiring at center.
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, calculation formula are as follows:
By instance analysis, the dedicated machined parameters of globoid cam processing detection all-in-one machine 100 are set, contact is passed through
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 center away from error amount δ=| rc-rc'|；Third driving mechanism according to center away from error amount δ carry out center away from amendment.
Since the cam contour of arc surfaced indexing cam is the Space Free-Form Surface that can not be opened up, profile profile surface accurately whether it is straight
Connect the transmission quality for influencing mechanism；There is very big be stranded to the surface processing and error-detecting of globoid cam in the prior art
It is difficult.And a kind of online test method provided in this embodiment, realize the center to globoid cam away from error by contact measuring head
With the detection of the mismachining tolerances such as Profile error, lathe then is fed back to after digital control system analysis, to realize processing essence
The amendment of degree；The detection method have the advantages that detection efficiency with it is with high accuracy, improve the processing efficiency and processing of globoid cam
Quality.
In conclusion inventor devises a kind of five axis globoid cams processing detection one using the linkage of dual AC power reference axis
Body machine, it is intended to the problems such as measurement efficiency is low caused by solving handling repeatedly in the prior art, and measurement accuracy is low.It has work
The dual AC power linkage for making transverse movement, longitudinal movement and the revolving platform and globoid cam of platform, is able to carry out convex for cambered surface
Contoured surface processing is moved with detection.Automatic tool changer including tool magazine and swinging mechanical hand, manipulator is for realizing 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
To 3 d space coordinate data, be compared analysis with the curved surface set in system, obtain the center of globoid cam away from error with
The mismachining tolerances such as Profile error, and then feed back to lathe again and be adjusted machined parameters, wherein third driving mechanism drives work
Platform 102 is moved along closed slide 301 relative to revolving platform 101, adjusts the rotation axis of globoid cam and the revolution of revolving platform 101
Center between axis away from.
The processing and detection of globoid cam processing detection all-in-one machine are easy to operate, have detection efficiency and spy with high accuracy
Use develop macroprogram milling in point, processing and detection and detection recycle, greatly improve the processing efficiency of globoid cam with
Processing quality has good application value, has preferable economic benefit and social benefit.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. globoid cam processing detection all-in-one machine, it is characterised in that:
Including base, spindle box and automatic tool changer；The base includes the pedestal with bearing surface, is set to the bearing surface
On revolving platform be vertically connected at the column of the bearing surface；The spindle box is set to the column；It is set on the bearing surface
There is the first driving mechanism extended in a first direction, and the second driving mechanism extended in a second direction；The revolving platform with
First driving mechanism and second driving mechanism transmission cooperation；
The automatic tool changer includes the tool magazine and swinging mechanical hand set on the spindle box, and the tool magazine is placed with cutter
With contact measuring head；The spindle box is additionally provided with the cutter spindle for fixed cutting tool and the contact measuring head, the machinery
Hand is set between the tool magazine and the cutter spindle, for realizing exchanging for cutter and the contact measuring head；
The revolving platform is equipped with the workbench and third driving mechanism of fixed globoid cam, the third driving mechanism with it is described
Table drive connection, for driving the workbench to move relative to the revolving platform, the workbench is equipped with fixed branch
Frame and tip holder；The fixed branch is provided with central rotating shaft, for driving globoid cam to rotate around horizontal axis；The fixation
Bracket and the tip holder are slidingly disposed on same axis, for withstanding globoid cam, are also set on the revolving platform
There are two closed slides；The third driving mechanism includes the third lead screw connecting with the table drive；The third silk
Thick stick is connected with third motor, for driving the workbench to move along the closed slide relative to the revolving platform；Described time
The third grating scale for detecting the table stroke, the third grating scale and third motor electricity are additionally provided on turntable
Connection.
2. globoid cam processing detection all-in-one machine according to claim 1, it is characterised in that:
The automatic tool changer further includes the 4th motor, output shaft and the cambered surface cam mechanism with globoid cam axis；Institute
The 4th motor is stated for driving the globoid cam axis to rotate, the output shaft and the globoid cam axis are sequentially connected, and are used for
The output shaft is driven to rotate perpendicular to the globoid cam axis；The manipulator is connected to the output shaft.
3. globoid cam processing detection all-in-one machine according to claim 2, it is characterised in that:
The tool magazine is set on the side of the relatively described cutter spindle of the spindle box；The manipulator has relative to described
Symmetrical two clamping parts of the rotation axis of output shaft, the output shaft drive the clamping part in the tool magazine and the cutter
It is moved between main shaft.
4. globoid cam processing detection all-in-one machine according to claim 3, it is characterised in that:
The clamping part includes the first segment for being connected to the output shaft and the second segment far from the output shaft；Described second
Section extends to the mounting surface of the tool magazine or the cutter spindle.
5. globoid cam processing detection all-in-one machine according to claim 1, it is characterised in that:
First driving mechanism includes the first lead screw with revolving platform transmission connection extended along the first direction；Institute
It states the first lead screw and is connected with first motor；The first grating for detecting the revolving platform stroke is additionally provided on the bearing surface
Ruler, the first grating scale are electrically connected with the first motor.
6. globoid cam processing detection all-in-one machine according to claim 5, it is characterised in that:
Second driving mechanism includes the second lead screw with revolving platform transmission connection extended along the second direction；Institute
It states the second lead screw and is connected with the second motor；The second grating for detecting the revolving platform stroke is additionally provided on the bearing surface
Ruler, the second grating scale are electrically connected with second motor.
7. globoid cam processing detection all-in-one machine according to claim 1, it is characterised in that:
The central rotating shaft is equipped with the first encoder for acquiring globoid cam corner, and the cutter spindle is equipped with for acquiring
The second encoder of cutter or the contact measuring head corner.
8. a kind of online test method, the globoid cam processing detection all-in-one machine based on any one of the claims 1-7,
It is characterized in that comprising the following steps:
Contact measuring head is loaded on fixed on cutter spindle, while revolving platform and central rotating shaft are turned by the characteristics of motion of setting
It is dynamic；Contact measuring head is contacted with globoid cam profile surface, obtains measuring route by biasing a side head radius with tested profile surface,
Contact measuring head is measured in measurement process with point trigger-type mensuration, to the actual coordinate value of each point in measuring route with
The comparison of theoretical coordinate value, obtains the center of globoid cam away from error and Profile error indirectly；Third driving mechanism according to center away from
Error, driving workbench relative to revolving platform move with adjust center away from.
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| CN201710200032.XA CN106735324B (en) | 2017-03-30 | 2017-03-30 | Curved cam processing and testing integrated machine and online testing method |
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| CN201710200032.XA CN106735324B (en) | 2017-03-30 | 2017-03-30 | Curved cam processing and testing integrated machine and online testing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107791071B (en) * | 2017-09-26 | 2020-10-20 | 东莞市皓晟实业有限公司 | Numerical control machine tool capable of automatically adjusting spacing and multi-spindle and multi-tool magazine structure thereof |
| CN108981566A (en) * | 2018-05-30 | 2018-12-11 | 北京理工大学 | A kind of workpiece morpheme is in level detecting apparatus |
| CN111168157B (en) * | 2020-03-05 | 2020-10-30 | 山东交通学院 | Cambered surface cam processing machine tool |
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