CN109849545A - Numerical control thermal transfer processing method - Google Patents
Numerical control thermal transfer processing method Download PDFInfo
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- CN109849545A CN109849545A CN201811549826.8A CN201811549826A CN109849545A CN 109849545 A CN109849545 A CN 109849545A CN 201811549826 A CN201811549826 A CN 201811549826A CN 109849545 A CN109849545 A CN 109849545A
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Abstract
The present invention relates to a kind of numerical control thermal transfer processing methods, comprising steps of (1), which obtains coordinate origin, processing starting point and multi-spindle machining by the geometric cross section profile of workpiece to be processed, controls cutter track；(2) workpiece to be processed is installed on workbench；(3) by the A axis for controlling workpiece to be processed rotation position, the position for rotating workpiece to be processed is located in the same vertical plane processing starting point with coordinate origin；(4) cutter track is controlled by the multi-spindle machining, controls the A axis for controlling the Z axis of hot pressing print-wheel upper and lower position and for controlling workpiece rotation position, carry out the thermal transfer processing of workpiece.Using numerical control thermal transfer processing method of the invention, processing quality is good, and processing capacity is high, has a wide range of application.
Description
Technical field
The present invention relates to Computerized Numerical Control processing technology fields, in particular to thermal transfer processing, in particular to a kind of numerical control thermal transfer
Processing method.
Background technique
Caloric transfer printing technology is a kind of processing work that pattern on transfer film is printed in product surface by heat transfer machine
Skill.Heat transfer machine is exactly the machinery for completing the technique.
Traditional heat transfer machine controls heat transfer machine movement using PLC, when transfer product needs multi-shaft interlocked transfer,
It is inadequate that PLC system controls precision, responds slower, therefore motion profile and ideal trajectory deviation are larger, the idler wheel of heat transfer machine and
Pressure is uneven between converted products, causes converted products effect poor.It now provides and a kind of thermal printer is controlled by digital control system
Transfer movement, when making workpieces processing hot pressing, workpiece surface and transfer film uniform force, TRAJECTORY CONTROL is accurate, sufficiently solves PLC
Control there are the problem of.
Summary of the invention
The purpose of the invention is to overcome above-mentioned missing in the prior art, provide a kind of processing quality it is good, processing energy
The numerical control thermal transfer processing method that power is high, has a wide range of application.
To achieve the goals above, the present invention provides a kind of numerical control thermal transfer processing methods, wherein the method packet
Include step:
(1) coordinate origin, processing starting point and multi-spindle machining are obtained by the geometric cross section profile of workpiece to be processed
Control cutter track；
(2) workpiece to be processed is installed on workbench；
(3) by the A axis for controlling workpiece to be processed rotation position, the position for rotating workpiece to be processed originates processing
Point is located in the same vertical plane with coordinate origin；
(4) cutter track is controlled by the multi-spindle machining, controlled for controlling the Z axis of hot pressing print-wheel upper and lower position and being used for
The A axis for controlling workpiece rotation position carries out the thermal transfer processing of workpiece.
Preferably, processing starting point in the step (1) be point farthest apart from Workpiece zero point in workpiece surface or
The maximum point of local distance workpiece far point in workpiece surface.
Preferably, the step (1) specifically:
(1-1) obtains given cutter track according to the geometric cross section profile of workpiece to be processed；
(1-2) identifies the coordinate origin and processing starting point in the given cutter track according to the given cutter track；
(1-3) carries out the given cutter track flat according to the coordinate origin and hot padding wheel diameter identified
It moves, obtains new cutter track track；
(1-4) is extruded into the depression depths of workpiece surface according to the edge of the hot padding wheel diameter and hot pressing print-wheel
Value, the new cutter track track is deviated, and obtains control track；
(1-5) exports the multi-spindle machining control cutter track according to the control track.
Preferably, in the step (1-5) specifically: according to default precision, equal length is pressed in the control track
Discretization is carried out, point range P is obtainedi, enabling coordinate origin is O, the Z and A of multi-spindle machining control are as follows:
P0For the point for corresponding to processing starting point in control track.
Preferably, driving motor servo-system is sent to A axis when the workpiece to be processed is preset as rotating counterclockwise
Positive direction instruction, the discretization for controlling track obtain dot matrix P by clockwiseiData, multi-spindle machining control the A in cutter trackiFor from 0 °
Gradually it is incremented to 360 °；When the workpiece to be processed is preset as rotating clockwise, driving servo electrical machinery system is sent to A axis
Negative direction instruction, the discretization for controlling track obtain dot matrix P by counterclockwiseiData, multi-spindle machining control the A in cutter trackiFor from 0 °
Gradually it is decremented to -360 °.
Preferably, being 0 by the A shaft-like work setting coordinate for processing starting point, Z axis is gradually decreased, so that hot pressing print-wheel contacts
Workpiece surface, and continuing decline Z axis makes hot pressing print-wheel squeeze workpiece surface, and the workpiece coordinate of Z axis is recorded as 0 at this time.
Preferably, the method further include:
Step (5): lifting Z axis, unloads the workpiece that thermal transfer processes from workbench, process finishing or under continuing
The thermal transfer of one workpiece to be processed is processed, and step (2)-(5) are repeated.
Using having the beneficial effect that for numerical control thermal transfer processing method of the invention
1) promotion on processing quality: precision 0.001mm is instructed using digital control system interpolation, actual processing effect is far super pre-
The fraction defective of product is reduced 8 percentage points from 11% compared with former PLC system, reaches yields 93% by the phase；
2) powerful processing capacity: digital control system provides efficient image and file process ability, especially when being made
When image is sufficiently complex, such as when the straight lines of many places connects circular arc and a large amount of circular arc, PLC processing speed and precision are then bright
Aobvious decline is unable to satisfy customer requirement or directly reports an error and can not identify；And the outstanding interactive system of digital control system greatly improves
Efficiency in user's use, has saved the time；
3) outstanding axis extended capability: the processing machine type update cycle is fast, and variation is big, digital control system easy switching and can root
Need to increase asessory shaft according to user, the good compatible asessory shaft of digital control system is multi-shaft interlocked, and control is accurate；And former PLC system expands
It is more complex to open up asessory shaft, speed control is uneven when need to reprogram and is multi-shaft interlocked.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of numerical control thermal transfer system of processing of the invention.
Fig. 2 is the control track schematic diagram in numerical control thermal transfer processing method of the invention.
Fig. 3 is that the multi-spindle machining in numerical control thermal transfer processing method of the invention controls cutter track schematic diagram.
Specific embodiment
In order to be more clearly understood that technology contents of the invention, specific implementation method of the invention is made into one below
Walk explanation.
As shown in Figures 1 to 3, by taking the cube workpiece with hexagonal cross-section profile as an example, a kind of number of the invention is provided
Control the specific embodiment of thermal transfer processing method, wherein as shown in Figure 1, including in numerical control thermal transfer system of processing of the invention
For control hot pressing print-wheel the Z axis moved up and down, hot pressing print-wheel, workbench and the workpiece to be processed being installed on workbench,
For controlling the A axis of worktable rotary, with figuratum film, film feeding axis, film-receiving axis, the substantially course of work are as follows: heating hot pressing
Print-wheel, program start, and Z axis declines and squeeze workpiece surface, ZA linkage, film feeding axis film feeding, film-receiving axis winder.Z axis passes through servo
Motor drives lead screw that processing part print-wheel is made to move up and down；A axis connects speed reducer by servo motor and drives workbench (size
Less than the mold of workpiece, workpiece is covered to be fixed on mold) it makes rotating motion.
The method comprising steps of
(1) coordinate origin, processing starting point and multi-spindle machining are obtained by the geometric cross section profile of workpiece to be processed
Control cutter track；
(2) workpiece to be processed is installed on workbench；
(3) by the A axis for controlling workpiece to be processed rotation position, the position for rotating workpiece to be processed originates processing
Point is located in the same vertical plane with coordinate origin；
(4) cutter track is controlled by the multi-spindle machining, controlled for controlling the Z axis of hot pressing print-wheel upper and lower position and being used for
The A axis (ZA linkage) for controlling workpiece rotation position carries out the thermal transfer processing of workpiece.
Wherein, step (1) specifically:
Identify the coordinate origin arranged in given cutter track and starting point；
Cutter track sequence is adjusted, is joined end to end by counterclockwise or clockwise direction；
According to grinding machine structure design cutter (hot pressing print-wheel) attitude mode；
Given cutter track track is converted into control track according to cutter-orientation model；
Cutter track is controlled according to control track output multi-spindle machining；
Default multiaxis Workpiece zero point；Digital control system needs to carry out the setting of Workpiece zero point, and the heat of ZA structure is turned
Print processing, needs user to place workpiece on the workbench of rotation, and control A axis rotates to the processing starting point of workpiece and heat
Wheel center is imprinted in same perpendicular, is at this time 0 by A shaft-like work coordinate record；Then Z axis is gradually decreased, so that hot pressing
Print-wheel is pressed onto workpiece surface, and continues to decline squeezing effect when Z axis reaches processing (under continuing the height declined referred to as
Press depth value), the workpiece coordinate of Z axis is recorded as 0 at this time.
System loads multi-spindle machining control cutter track is processed.
In a kind of preferably embodiment, in order to which operator can be easy to determine the zero of ZA form workpiece coordinate when in use
Point, the processing starting point in the step (1) are office in point or workpiece surface farthest apart from Workpiece zero point in workpiece surface
Maximum point of the portion apart from workpiece far point.Wherein, coordinate origin is the centre point position for the circular arc that diameter is 10mm in Fig. 2,
Processing starting point is the centre point position for the circular arc that diameter is 5mm, corresponding by the rail in given cutter track according to actual machine assembly
Mark is sequentially attached since starting point clockwise or counterclockwise；
In a kind of preferably embodiment, the step (1) specifically:
(1-1) obtains given cutter track according to the geometric cross section profile of workpiece to be processed；
(1-2) identifies the coordinate origin and processing starting point in the given cutter track according to the given cutter track；
(1-3) carries out the given cutter track flat according to the coordinate origin and hot padding wheel diameter identified
It moves, obtains new cutter track track；" new cutter track track " is equivalent to move in the geometric figure (given cutter track) of input and tie with mechanical
In the identical coordinate system of structure, the circular arc of 10mm diameter is exactly rotation center in mechanical structure in Fig. 2.
(1-4) is extruded into the depression depths of workpiece surface according to the edge of the hot pressing print-wheel radius and hot pressing print-wheel
The difference of value deviates the new cutter track track, obtains control track, guarantees the center of hot pressing print-wheel in control track
It is upper it is ensured that the edge of hot pressing print-wheel can squeeze workpiece surface (hot pressing print-wheel is that have by pushing depth value just when actual processing
Elasticity)；
Wherein, depression depths value can be set by experience, and hot pressing print-wheel can be deformed when pushing down hot pressing film and workpiece, be equivalent to
Diameter becomes smaller, therefore in debugging, and changing print-wheel diameter makes to adjust rear path and it is expected consistent.
(1-5) exports the multi-spindle machining control cutter track according to the control track.
In a kind of preferably embodiment, in the step (1-5) specifically:, will be described according to default precision
It controls track and for example carries out discretization by equal length, obtain point range Pi, enabling coordinate origin is O, the Z of output multi-spindle machining control
(Z representative is distance of the Z axis mechanical origin to workpiece surface with A；What A was represented is the rotation angle of mold) are as follows:
P0For the point for corresponding to processing starting point in control track；Wherein,Indicate vectorTo vector
Obtained angle, the positive and negative direction of rotation according to workpiece when processing determine.
In a kind of preferably embodiment, when the workpiece to be processed is preset as rotating counterclockwise, driving motor
Servo-system sends positive direction instruction to A axis, and the discretization for controlling track obtains dot matrix P by clockwiseiData, multi-spindle machining control
A in cutter track processediTo be gradually incremented to 360 ° from 0 °；When the workpiece to be processed is preset as rotating clockwise, driving is watched
It takes electric system and sends negative direction instruction to A axis, the discretization for controlling track obtains dot matrix P by counterclockwiseiData, multi-spindle machining
Control the A in cutter trackiTo be gradually decremented to -360 ° from 0 °.
In a kind of preferably embodiment, it is 0 by the A shaft-like work setting coordinate for processing starting point, gradually decreases Z axis,
So that hot pressing print-wheel contact workpiece surface, and continuing decline Z axis makes hot pressing print-wheel squeeze workpiece surface, at this time by the workpiece of Z axis
Coordinate record is 0.
In a kind of preferably embodiment, the method further include:
Step (5): lifting Z axis, unloads the workpiece that thermal transfer processes from workbench, process finishing or under continuing
The thermal transfer of one workpiece to be processed is processed, and step (2)-(5) are repeated.That is, cutter track generates and workpiece in actual processing
Coordinate is reset only once, and hot pressing film roll can process multiple workpiece on film feeding axis, process a workpiece, Z axis every time
It can lift, the workpiece processed is unloaded, refill a workpiece to be processed, then click digital control system and start to be processed
?.
Method provided by the invention can realize part printing by drawing local cutter track.
Using having the beneficial effect that for numerical control thermal transfer processing method of the invention
1) promotion on processing quality: precision 0.001mm is instructed using digital control system interpolation, actual processing effect is far super pre-
The fraction defective of product is reduced 8 percentage points from 11% compared with former PLC system, reaches yields 93% by the phase；
2) powerful processing capacity: digital control system provides efficient image and file process ability, especially when being made
When image is sufficiently complex, such as when the straight lines of many places connects circular arc and a large amount of circular arc, PLC processing speed and precision are then bright
Aobvious decline is unable to satisfy customer requirement or directly reports an error and can not identify；And the outstanding interactive system of digital control system greatly improves
Efficiency in user's use, has saved the time；
3) outstanding axis extended capability: the processing machine type update cycle is fast, and variation is big, digital control system easy switching and can root
Need to increase asessory shaft according to user, the good compatible asessory shaft of digital control system is multi-shaft interlocked, and control is accurate；And former PLC system expands
It is more complex to open up asessory shaft, speed control is uneven when need to reprogram and is multi-shaft interlocked.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (7)
1. a kind of numerical control thermal transfer processing method, which is characterized in that the method comprising steps of
(1) coordinate origin, processing starting point and multi-spindle machining control are obtained by the geometric cross section profile of workpiece to be processed
Cutter track；
(2) workpiece to be processed is installed on workbench；
(3) by the A axis for controlling workpiece to be processed rotation position, the position for rotating workpiece to be processed make to process starting point with
Coordinate origin is located in the same vertical plane；
(4) cutter track is controlled by the multi-spindle machining, controlled for controlling the Z axis of hot pressing print-wheel upper and lower position and for controlling
The A axis of workpiece rotation position carries out the thermal transfer processing of workpiece.
2. numerical control thermal transfer processing method according to claim 1, which is characterized in that the processing in the step (1)
Starting point is the maximum point of local distance workpiece far point in point or workpiece surface farthest apart from Workpiece zero point in workpiece surface.
3. numerical control thermal transfer processing method according to claim 1, which is characterized in that the step (1) specifically:
(1-1) obtains given cutter track according to the geometric cross section profile of workpiece to be processed；
(1-2) identifies the coordinate origin and processing starting point in the given cutter track according to the given cutter track；
The given cutter track is translated, is obtained according to the coordinate origin and hot padding wheel diameter that identify by (1-3)
To new cutter track track；
(1-4) is extruded into the depression depths value of workpiece surface according to the edge of the hot pressing print-wheel radius and hot pressing print-wheel,
The new cutter track track is deviated, control track is obtained；
(1-5) exports the multi-spindle machining control cutter track according to the control track.
4. numerical control thermal transfer processing method according to claim 3, which is characterized in that specific in the step (1-5)
Are as follows: according to default precision, the control track is subjected to discretization by equal length, obtains point range Pi, enable the coordinate origin be
O, the Z and A of multi-spindle machining control are as follows:
P0For the point for corresponding to processing starting point in control track.
5. numerical control thermal transfer processing method according to claim 4, which is characterized in that when the workpiece to be processed is default
When to rotate counterclockwise, driving motor servo-system sends positive direction instruction to A axis, controls the discretization of track by obtaining clockwise
Obtain dot matrix PiData, multi-spindle machining control the A in cutter trackiTo be gradually incremented to 360 ° from 0 °；When the workpiece to be processed is default
When to rotate clockwise, driving servo electrical machinery system sends negative direction instruction to A axis, controls the discretization of track by obtaining counterclockwise
Obtain dot matrix PiData, multi-spindle machining control the A in cutter trackiTo be gradually decremented to -360 ° from 0 °.
6. numerical control thermal transfer processing method according to claim 4, which is characterized in that the A shaft-like work of starting point will be processed
Setting coordinate is 0, gradually decreases Z axis, so that hot pressing print-wheel contact workpiece surface, and continuing decline Z axis squeezes hot pressing print-wheel
The workpiece coordinate of Z axis is recorded as 0 at this time by workpiece surface.
7. numerical control thermal transfer processing method according to claim 1, which is characterized in that the method further include:
Step (5): lifting Z axis, unloads the workpiece that thermal transfer processes from workbench, process finishing or continue it is next to
The thermal transfer of workpieces processing is processed, and repeat the above steps (2)~(5).
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| CN201811549826.8A CN109849545B (en) | 2018-12-18 | 2018-12-18 | Numerical control heat transfer printing processing method |
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