CN110948373A

CN110948373A - Grinding process control system applicable to grinding machine

Info

Publication number: CN110948373A
Application number: CN201910446290.5A
Authority: CN
Inventors: 曾彦皓; 陈永诚; 钟林树
Original assignee: Hejing Technology Co ltd
Current assignee: Hejing Technology Co ltd
Priority date: 2018-09-26
Filing date: 2019-05-27
Publication date: 2020-04-03
Anticipated expiration: 2039-05-27
Also published as: TWI704978B; CN110948373B; TW202012099A

Abstract

The invention relates to a grinding process control system applicable to a grinding machine, which can generate a grinding program for the grinding machine after being executed by a computer, so that the grinding machine can grind the outline of a part by at least one grinding wheel of the grinding machine; the grinding process control system mainly utilizes a 2D section diagram for drawing an outline dimension diagram of a to-be-ground part and matching with each dimension node, sets the size of a grinding wheel, the clamping position of the to-be-ground part and the like, selects a proper grinding type and grinding engineering, sets a grinding sequence, a to-be-ground part and engineering parameters at the same time to generate a corresponding grinding program, and carries out 3D dynamic simulation on the to-be-ground part and the grinding machine so as to inspect whether a grinding result is correct or not and whether collision is generated in the grinding process or not; the polishing type can be edited freely by the user to increase, decrease or adjust the polishing sequence.

Description

Grinding process control system applicable to grinding machine

Technical Field

The present invention relates to computer program products, and more particularly to a grinding process control system for a grinding machine.

Background

SmartCam is a computer program product applied to milling machine machining, and some grinding manufacturers also use SmartCam software to grind parts with simple profile in order to save software cost, but cannot grind parts with complex profile, especially when the section is changed or special.

In addition, some polishing manufacturers use special parts to polish by means of a master, but usually have to make many special master parts, so the manufacturing cost is high, the manufacturing time of the master parts is long, and the grinding precision is not comparable to that of special software, and is not easy to control.

Some grinder manufacturers write grinding modules with built-in specific simple profile in controller Macro syntax for users to directly operate, but when the profile other than the built-in grinding module needs to be ground, the users cannot build the grinding module by themselves, and the grinder manufacturers must be entrusted to assist in addition, so that the construction cost is increased, the communication and construction time are consumed, and the grinding modules are lack of timeliness, convenience and flexibility compared with dedicated software. Meanwhile, if a user develops a part with a special profile or section shape by himself, the grinding technique or procedure of the part must be exposed to the manufacturer of the grinding machine, and the confidentiality cannot be maintained.

Although there are computer program products dedicated for grinding machines in the market, it is still the same that several grinding modules with different cross-sectional shapes and styles are built in for users to choose, so users cannot build grinding modules with other cross-sectional shapes and styles according to their own needs, and the software developer must be entrusted to assist the new addition, and there are various problems similar to those encountered by the grinding machine manufacturer with built-in grinding modules in the controller Macro syntax.

Disclosure of Invention

The invention provides a grinding process control system applicable to a grinding machine, which can generate a grinding program for the grinding machine after being executed by a computer, so that the grinding machine can grind the outline of a part by at least one grinding wheel; the grinding process control system mainly utilizes a 2D section diagram for drawing an outline dimension diagram of a to-be-ground part and matching with each dimension node, sets the size of a grinding wheel, the clamping position of the to-be-ground part and the like, selects a proper grinding type and grinding engineering, sets a grinding sequence, a to-be-ground part and engineering parameters at the same time to generate a corresponding grinding program, and carries out 3D dynamic simulation on the to-be-ground part and the grinding machine so as to inspect whether a grinding result is correct or not and whether collision is generated in the grinding process or not; the polishing type can be edited freely by the user to increase, decrease or adjust the polishing sequence.

The grinding process control system applicable to the grinding machine can be used for a user to draw and construct various simple or complex appearance outlines and corresponding section shapes according to the requirement of the user, and provide a plurality of grinding categories for the user to set grinding sequences, so that a grinding program is generated for the grinding machine to use, therefore, the user does not need to rely on an external manufacturer to assist in construction, and the grinding process control system is more flexible and elastic in use, so that the grinding operation can be fast and convenient; meanwhile, if a user develops a part with a special outline or section shape by himself, the confidentiality of the grinding technology or process of the part can be kept by himself through the self-construction mode, and the part cannot be leaked to the outside.

Drawings

FIG. 1 is a block diagram of the modules of the grinding process control system of the present invention, showing the connection relationship between the modules and the computer and the grinding machine.

FIG. 2 is a schematic diagram of the outline of the material to be ground drawn by the outline module according to the present invention.

Fig. 3 is a perspective view of a member to be ground corresponding to a material to be ground drawn in the outline module of the present invention.

FIG. 4 is a perspective view of a part to be ground according to the present invention.

FIG. 5 is a side plan view of a part to be ground according to the present invention.

FIG. 6(a) shows the outline of the portion to be polished according to the present invention.

FIG. 6(b) is a cross-sectional shape selection window for each node of the outline of FIG. 6 (a).

FIG. 6(c) is a cross-sectional shape and size of each node displayed after the window of FIG. 6(b) is selected.

FIG. 7 is a window for establishing the desired cross-sectional shape and size of each node of the outline of FIG. 6 (a).

FIG. 8(a) is a perspective view of a part ground by a plurality of grinding types according to the present invention.

FIG. 8(b) is a side plan view of a part being ground by a plurality of grinding types according to the present invention.

Fig. 9(a) is a perspective view of the material before polishing in fig. 8 (a).

FIG. 9(b) is a perspective view of the rough blank after the material of FIG. 9(a) is subjected to step-difference grinding.

Fig. 10(a) is a perspective view of the green part of fig. 9(b) after the green part has been ground to remove most of the thickness (first removal).

FIG. 10(b) is a perspective view of the rough part of FIG. 10(a) after being ground one turn in cross-sectional profile shape.

Fig. 10(c) is a perspective view of the green part of fig. 10(b) after removal of most of the thickness (secondary removal) by lateral displacement.

FIG. 10(d) is a perspective view of the rough part of FIG. 10(c) after being ground one more turn according to the profile shape of the cross section.

FIG. 11(a) is a perspective view of the blank part of FIG. 10(d) after being ground by spiral grinding in a cross-sectional profile shape for one turn.

FIG. 11(b) is a side plan view of the rough part of FIG. 11(a) after spiral grinding in accordance with the profile shape of the cross-section.

FIG. 11(c) is a perspective view of the rough part of FIG. 11(b) after being ground one more turn according to the profile shape of the cross section.

FIG. 12 is a perspective view of the rough part of FIG. 11(c) after being ground in a stepwise manner and ground once in accordance with the profile shape of the cross section.

FIG. 13 is a perspective view of a virtual 3D grinder constructed according to the physical dimensions of the grinder according to the present invention.

FIG. 14 is an operation interface presented by the 3D simulation module of the present invention.

Reference numerals

1 grinding process control system

2 computer

3 grinding procedure

4 grinding machine

10 machine parameter module

100 contour of material to be ground

101 round bar

102 parts

103 profile of the profile

104 parts

20 grinding wheel module

30 profile module

31 part to be ground

40 grinding process module

50 grinding program generating module

603D grinder building block

703D simulation module

200 material

201 blank part

202 blank part

203 blank part

204 rough blank part

205 rough blank part

206 blank part

207 blank part

208 rough blank part

209 blank part

300 virtual 3D grinder

400 operation interface

401 picture

402 frame

403 pictures

404 frame

500 grinding wheel

R arc angle

Position P1

Position P2

S1 first node

S2 second node

S3 third node

P end face

t1 center point

Point t2

Point t3

Detailed Description

As shown in fig. 1, the present invention provides a grinding process control system applicable to a grinding machine, wherein the grinding process control system 1, after being executed by a computer 2, can generate a grinding program 3(NC Code) for a grinding machine 4, the grinding program 3 being generated by a controller of different syntax on the grinding machine 4, so that the grinding machine 4 can grind the contour of a part by at least one grinding wheel thereof; the grinding process control system 1 comprises a machine parameter module 10, a grinding wheel module 20, a profile module 30, a grinding process module 40, a grinding 7 program generation module 50, a 3D grinding machine construction module 60 and a 3D simulation module 70; wherein:

the machine parameter module 10 is used for inputting various parameters of the grinding machine, wherein the parameters at least comprise positive and negative limits of each shaft of the grinding machine, a program processing origin and a part offset.

The grinding wheel module 20 is used for inputting various parameters of the grinding wheel, wherein the parameters at least comprise diameter, thickness, angle, axial position, rotating speed and forward and reverse rotation.

The outline module 30 draws the outline of the material, the outline of the part to be ground and the size of the part to be ground according to the point coordinates, generates at least two nodes on the line segment after the outline is drawn, and also establishes at least one section shape and the size of the required section shape according to the point coordinates, and a user can select the established section shape and the size of the section shape at each node so as to display the section shape and the size corresponding to each node.

For example, a user can first draw a contour 100 of a material to be ground by using point coordinates, as shown in fig. 2, a circular rod 101 with substantially the same diameter can be used as a material to be ground, as shown in fig. 3, and grind a part 102 by using the circular rod 101, as shown in fig. 4 and 5, at this time, the user can further draw a contour 103 and its size to be ground of the portion 31 to be ground by using the contour module 30, as shown in fig. 6(a), it is clear that the contour 103 can generate three nodes on its line segment after completing the drawing, including a first node S1, a second node S2 and a third node S3, the first node S1 is substantially a center point t1 of the outer side end surface P of the portion 31 to be ground of fig. 5, the second node S2 is substantially a point t2 of the radial outer edge at the end surface P of the portion 31 to be ground of fig. 5, which is a point in this embodiment located at the vertical height, the third node S3 is substantially a point t3 of the radial outer edge of the portion to be polished 31 of fig. 5 on the other side with respect to the end face P, and is also a point at the vertical height in the present embodiment. It is emphasized that the portion to be polished 31 may essentially consist of several profile profiles 103, and that each profile 103 may be assigned a profile number.

After the user finishes drawing the material contour, the outline contour to be ground and the size of the outline contour, the part to be ground is ground to form at least one required section shape and size according to the point coordinates, in the embodiment, the part to be ground 31 has two section parts which are respectively positioned at the second node S2 and the third node S3, and the section shapes of the section parts are different, so that the user can finish the section shapes and sizes corresponding to the second node S2 and the third node S3 by two steps; in the first step, the cross-sectional shapes of the second node S2 and the third node S3 are first established, that is, the two cross-sectional shapes of the cross-sectional number 1 and the cross-sectional number 2 shown in fig. 7 are respectively, and in the second step, the cross-sectional number corresponding to each node is clicked in fig. 6(b), in this embodiment, the cross-sectional number corresponding to the second node S2 is 1, so that when the user clicks the cross-sectional number 1, the cross-sectional shape as the left side of fig. 6(c) is displayed immediately, and similarly, the cross-sectional number corresponding to the third node S3 is 2, so that when the user clicks the cross-sectional number 2, the cross-sectional shape as the right side of fig. 6(c) is displayed immediately, and thus, the drawing operation of the cross-sectional shapes and the sizes corresponding to at least two nodes in the outline is completed. In other words, if the cross-sectional shapes of the second node S2 and the third node S3 are the same, the user only needs to establish a cross-sectional shape and its size and assign a cross-sectional number.

The grinding process module 40 provides a plurality of grinding categories for a user to set a grinding sequence and engineering parameters of each grinding category for forming the contour and the cross-sectional shape drawn by the contour module 30, wherein the grinding categories include step grinding, material removal grinding, spiral grinding and stepped grinding. It should be noted that, when setting the grinding sequence, each grinding category can be used once or more, and each grinding category belongs to one grinding process, and is assigned with one process number.

For example, when a user wants to grind the part 104 shown in fig. 8(a) and (b), the step grinding, the material removing grinding, the spiral grinding and the stepped grinding can be sequentially performed. Specifically, the round bar material 200 in fig. 9(a) can be ground into the profile and size of the rough blank part 201 in fig. 9(b) by the step grinding, during grinding, the material 200 is clamped on the collet chuck and driven by the transmission shaft to rotate, after the grinding wheel is fed (fed) to a predetermined size along the radial direction of the material 200, and then is moved to a predetermined size along the axial direction of the X axis, the step grinding can be completed, and the grinding mode is similar to the processing mode of a traditional lathe.

After that, the outline and size of the rough blank part 202 as shown in fig. 10(d) are finished by material-removing grinding, and it should be noted that, since the cross section of the rough blank part 202 after grinding is an ellipse in this embodiment, in order to improve the grinding efficiency, most of the thickness of the meat must be removed first on both sides of the minor axis of the ellipse, as shown in fig. 10(a), and then ground for one circle according to the cross-sectional outline shape, as shown in fig. 10(b), only a small amount of the material to be ground is reserved for fine grinding, which is the main grinding characteristic of the material-removing grinding.

To be more specific, during the grinding, the transmission shaft of the step grinding must be switched to the servo shaft to servo-position the rough blank part 201, the grinding wheel is fed (fed) to a predetermined size along the radial direction of the rough blank part 201 to remove most of the thickness (first material removal), such as the rough blank part 203 shown in fig. 10(a), and ground once and then moved back according to the profile shape of the cross section, such as the rough blank part 204 shown in fig. 10(b), and the above actions are repeated according to the number of times of transverse movement set by the user, so that the rough blank part 205 shown in fig. 10(c) and the rough blank part 202 shown in fig. 10(d) can be ground in sequence by setting only one transverse movement, and the material removal grinding is completed.

Next, the rough blank part 202 is ground by using spiral grinding to form the profile and size of the rough blank part 206 shown in fig. 11(c), in the grinding, the grinding wheel is fed (fed) to a predetermined size along the radial direction of the rough blank part 202, and is rotated by a servo to grind one circle according to the profile shape of the cross section to form the profile of the rough blank part 207 shown in fig. 11(a), the grinding wheel is laterally displaced according to the set number of spiral turns, and is ground in a spiral manner according to the profile shape of the cross section to form the rough blank part 208 shown in fig. 11(b), and finally, one circle is ground according to the profile shape of the cross section to form the profile and size of the rough blank part 206 shown in fig. 11(c), thereby completing the spiral grinding.

Then, the rough part 206 is ground into the circular arc angle R by using the step grinding to form the outline and the size of the part 104 as shown in (a) and (b) of FIG. 8, the grinding wheel is first fed (plunged) radially along the green part 206 to a set size, grinding one turn according to the profile shape of the cross section by servo rotation to form the profile of the rough part 209 as shown in FIG. 12, grinding by stepwise feed with the servo rotation in sequence using a grinding wheel, the radius R can be ground, it should be emphasized that the grinding process of the radius R is substantially from the circular contour at the position P1 to the elliptical contour at the position P2 by stepwise gradual grinding, in other words, the contour shape ground every turn between the positions P1 and P2, it has a more circular profile closer to position P1 and an elliptical profile closer to position P2.

The grinding program generating module 50 can generate a grinding path according to each parameter inputted or set by the machine parameter module 10, the grinding wheel module 20, the outline module 30 and the grinding process module 40, and then generate the grinding program 3 according to different grammars of the controller, and the grinding program 3 can be transmitted in a file manner.

The 3D mill building module 60 builds a virtual 3D mill 300 based on the physical dimensions of the mill, as shown in fig. 13, and it is specifically noted that the virtual 3D mill 300 is typically built into the mill process control system 1 by the mill process control system 1 builder based on the physical dimensions of the mill.

The 3D simulation module 70 is configured to simulate a grinding path on the virtual 3D grinding machine 300 constructed by the 3D grinding machine construction module 60 according to parameters input or set by the machine parameter module 10, the grinding wheel module 20, and the outline module 30, and the grinding program 3 generated by the grinding program generation module 50, so as to determine whether the outline, the cross-sectional shape, and the size of the ground outline are correct, and simultaneously, to inspect whether a collision phenomenon occurs during the grinding process.

As shown in fig. 14, the operation interface 400 presented by the 3D simulation module 70, screen 401, displays the virtual 3D grinder 300 loaded from the 3D grinder construction module 60, grinder parameters loaded from the machine parameter module 10, grinding wheel 500 parameters loaded from the grinding wheel module 20, and material 200 loaded from the outline module 30.

The frame 402 shows the polishing process and the final polishing result of the material 200 in the simulation state, and the user can view the polishing process at different viewing angles or arbitrarily rotate the material; during the grinding process, once the grinding wheel collides with the mechanical parts or the object to be ground, a collision message is generated, for example, the grinding wheel and the object to be ground can be displayed in red for warning in the screen 401, and a collision message frame is displayed for the user to inspect the collision situation.

The frame 403 shows the polishing program generated by the polishing program generation module 50, and it should be particularly emphasized that the polishing program is synchronized with the polishing process in the frame 402, for example, when the polishing program is executed in any row of programs, the polishing action corresponding to the row of instructions is synchronously displayed in the frame 402.

The screen 404 displays the coordinates of each axis, the polishing rate, and the control commands corresponding to any row of programs in the screen 403 synchronously.

In this embodiment, each parameter of the machine parameter module 10 further includes a probe measurement function, which can be selected by a user to determine whether the offset of the component is obtained by manual input or automatic measurement.

In this embodiment, the parameters of the wheel module 20 further include a wheel type, which is selected by the user from a standard wheel and a non-standard formed wheel, and if a formed wheel is selected, the user can draw the shape of the periphery of the formed wheel.

In this embodiment, the contour module 30 is configured to display the corresponding dimension of each node, including at least the axial length and the diameter, the extending angle and the arc radius of each node relative to the next node, and the length of the track between each node and the center point of the end face along the contour.

In the present embodiment, the engineering parameters of each polishing type of the polishing process module 40 include an identification parameter, an exterior parameter, a polishing parameter, and a tool advancing and retracting parameter; the identification parameters are mainly used for setting the color displayed by each grinding project in the 3D simulation process; the shape parameters are mainly used for setting the shape number and the grinding wheel number of each grinding project; the grinding parameters are mainly used for setting the grinding amount and the grinding rate of each grinding process; the feeding and retracting parameters are mainly used for setting the feeding and retracting sequence of each shaft in each grinding process, wherein the feeding and retracting sequence comprises the feeding and retracting of a grinding wheel, the preparation position of the rapid feeding of each shaft and the stop position after the retracting.

In this embodiment, the polishing process module 40 further includes an editing function, so that a user can increase, decrease or adjust and change the polishing sequence after setting the polishing sequence and completing the polishing parameters of each polishing type.

In this embodiment, the 3D simulation module 70 further includes a measurement function for measuring the outline dimensions of the simulated part.

As can be seen from the above description, the computer grinding process control system 1 of the present invention can allow a user to draw and construct various simple or complex outline and corresponding cross-sectional shapes according to his own needs, and provide a plurality of grinding categories for the user to set the grinding sequence, and further generate a grinding program for the grinder to use, so that the user does not need to rely on an external manufacturer to assist in construction, and thus the use is more flexible and flexible, and the grinding operation can be fast and convenient; meanwhile, if a user develops a part with a special outline or section shape by himself, the confidentiality of the grinding technology or process of the part can be kept by himself through the self-construction mode, and the part cannot be leaked to the outside.

In summary, the present invention has excellent creation practicability in similar products, and meanwhile, the technical scheme that the same structure is disclosed before is not found after the related technical data or patent documents inside and outside the world are searched, so that the present invention has the patent requirements, and the application is legally proposed. Meanwhile, the above description is only a part of the possible embodiments of the present invention, and all the equivalent structural changes that are made by applying the present invention to the specification and claims should be included in the protection scope of the present invention.

Claims

1. A grinding process control system applicable to a grinding machine is characterized in that after being executed by a computer, a grinding program can be generated for the grinding machine, the grinding program is generated according to controllers with different grammars on the grinding machine, so that the grinding machine can grind the outline of a part through at least one grinding wheel of the grinding machine; the grinding process control system comprises:

the machine parameter module is used for inputting various parameters of the grinding machine, and the parameters input by the machine parameter module at least comprise a program processing origin and a part offset;

the grinding wheel module is used for inputting various parameters corresponding to the grinding wheel, and the parameters input by the grinding wheel module at least comprise a diameter, a thickness, an angle, an axial position and a rotating speed;

the outline module is used for drawing the material outline, the outline to be formed by grinding the part to be ground and the size of the outline according to the point coordinates, at least two nodes can be generated on the line segment of the outline after the outline is drawn, at least one section shape and the size of the section shape can be established according to the point coordinates, and a user can select the established section shape and the size of the section shape at each node so as to display the section shape and the size corresponding to each node;

a grinding procedure module, which provides a plurality of grinding categories for a user to set a grinding sequence and engineering parameters of each grinding category so as to form the outline and the section shape drawn by the outline module; when the grinding sequence is set, each grinding type can be used for one time or multiple times, each time of use belongs to one grinding project, and each grinding project is assigned with one project number;

a grinding program generating module which can generate a grinding path according to various parameters input or set by the machine parameter module, the grinding wheel module, the outline module and the grinding procedure module and generate a grinding program according to different grammars of the controller;

a 3D grinder construction module for constructing a virtual 3D grinder according to the physical size of the grinder;

and the 3D simulation module is used for simulating a grinding path on the virtual 3D grinding machine constructed by the 3D grinding machine construction module by matching with various parameters input or set by the machine parameter module, the grinding wheel module and the outline module and according to the grinding program generated by the grinding program generation module, so as to determine whether the ground outline, the cross section shape and the size of the ground outline are correct or not and simultaneously inspect whether a collision phenomenon is generated in the grinding process or not.

2. The system of claim 1, wherein the parameters inputted into the grinder by the machine parameter module further include positive and negative limits for each axis of the grinder.

3. The system of claim 1, wherein the parameters of the tool parameter module further comprise a probe measurement function, and a user can select whether the probe measurement function is available to determine whether the part offset is obtained by manual input or automatic measurement.

4. The system of claim 1, wherein the grinding wheel module is configured to input a grinding wheel number of the grinding wheel, and then input parameters corresponding to the grinding wheel number, and the parameters corresponding to the grinding wheel number further include a positive and negative rotation.

5. The system of claim 1, wherein the parameters of the wheel module further include a wheel type selected by a user from a standard wheel and a non-standard formed wheel, and if a formed wheel is selected, the shape of the periphery of the formed wheel.

6. The system of claim 1, wherein the profile module is configured to display the corresponding dimensions of each node, including at least the axial length and diameter, the angle of extension of each node relative to its next node, the radius of the arc, and the length of the path between each node and the center point of the end surface along the profile.

7. The system of claim 1, wherein the plurality of grinding process modules provide grinding categories including step grinding, material removal grinding, auger grinding, and cascade grinding.

8. The system of claim 1, wherein the engineering parameters of each polishing type of the polishing process module include identification parameters, profile parameters, polishing parameters, and feeding and retracting parameters; the identification parameters are mainly used for setting the color displayed by each grinding project in the 3D simulation process; the shape parameters are mainly used for setting the shape number and the grinding wheel number of each grinding project; the grinding parameters are mainly used for setting the grinding amount and the grinding rate of each grinding process; the feeding and retracting parameters are mainly used for setting the feeding and retracting sequence of each shaft in each grinding process, wherein the feeding and retracting sequence comprises the feeding and retracting of a grinding wheel, the preparation position of the rapid feeding of each shaft and the stop position after the rapid feeding of each shaft.

9. The system of claim 1, wherein the polishing process module further comprises an editing function for allowing a user to change the polishing sequence by increasing, decreasing or adjusting the polishing sequence after the polishing sequence and the polishing parameters of each polishing type are set.

10. The system of claim 1, wherein the 3D simulation module further comprises a measurement function for measuring the dimensions of the simulated profile of the part.