CN115709400A

CN115709400A - Lifting assembly, grinding machine and lifting control method, system, equipment and medium thereof

Info

Publication number: CN115709400A
Application number: CN202210967102.5A
Authority: CN
Inventors: 徐德军; 马飞
Original assignee: Qingdao Gaoce Technology Co Ltd
Current assignee: Qingdao Gaoce Technology Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2023-02-24

Abstract

The invention relates to the technical field of grinding machines, and particularly provides a lifting assembly, a grinding machine, a lifting control method and a lifting control system of the grinding machine, computer equipment and a computer readable storage medium, wherein the lifting assembly of the grinding machine comprises a driving part, a lifting wheel set and a supporting plate, and the lifting control method of the grinding machine comprises the following steps: judging whether the workpiece to be machined meets the grinding condition or not according to the detection result of the detection assembly; if not, the to-be-processed workpiece is placed on the feeding device, the driving part is operated, the lifting wheel is driven by the driving part to rotate so as to lift the supporting plate and the to-be-processed workpiece arranged on the supporting plate, and the position state of the to-be-processed workpiece in the vertical direction is adjusted. According to the invention, the workpiece to be machined meets the grinding condition in a mode of directly placing the workpiece to be machined in the feeding device again and repeatedly adjusting the feeding device.

Description

Lifting assembly, grinding machine and lifting control method, system, equipment and medium thereof

Technical Field

The invention relates to the technical field of grinding machines, and particularly provides a lifting assembly, a grinding machine, a lifting control method of the grinding machine, a lifting control system of the grinding machine, computer equipment and a computer readable storage medium.

Background

The grinding machine is equipment for grinding hard and brittle materials. Such as grinding machines, typically include a loading assembly, a feeding assembly, and a grinding assembly. Taking a piece made of hard and brittle materials as a silicon rod as an example, firstly fixing the cut silicon rod to a feeding assembly, performing certain initial adjustment on the position and posture of the feeding assembly, and then conveying the silicon rod to a position between two chucks of the feeding assembly, wherein for example, the two chucks can be both movable chucks or one chuck is a movable chuck and the other chuck is a fixed chuck. And the silicon rod is conveyed to the grinding component through the axial movement of the silicon rod, so that the first group of surfaces to be ground is subjected to grinding processing including rough grinding and fine grinding. Thereafter, the silicon rod is rotated to a second group of surfaces to be ground by rotating the silicon rod, and the second group of surfaces to be ground is subjected to grinding including rough grinding and finish grinding. And repeating the steps until all surfaces to be ground of the silicon rod are ground according to the set grinding standard.

Taking the hard and brittle material as an example of the silicon rod, since the specifications of the silicon rods are different and the external dimensions of the silicon rods of the same specification are different, when the silicon rods are placed on the loading platform, a certain position deviation usually exists between the axis of the silicon rod and the axes of the two chucks. In addition, due to the fact that the surface of the silicon rod before grinding is not flat, a certain angle deviation exists between the axis of the silicon rod and the axes of the two chucks. Obviously, the existence of the position deviation and the angle deviation can affect the coaxiality of the two axes, and the coaxiality between the two axes is shown as the feeding precision of the silicon rod on the grinding machine. The unqualified position deviation and angle deviation can affect the feeding precision of the silicon rod, and the reduction of the feeding precision can be generally expressed as the increase of the grinding quantity of the silicon rod and the improvement of silicon loss in different degrees, so that the processing efficiency of a grinding machine is reduced, and the surface quality of the silicon rod is reduced.

Disclosure of Invention

The present invention is directed to solve at least some of the above problems, and more particularly, to improve the feeding accuracy of a silicon rod by suppressing or eliminating any one of the positional deviation and the angular deviation, thereby improving the machining efficiency of a grinding machine and the surface quality of the silicon rod. More specifically, the present invention mainly suppresses or eliminates positional deviation in the height direction among the positional deviations.

In a first aspect, the present invention provides a lift assembly comprising: a drive member; the lifting wheel set comprises at least one lifting wheel, and the driving part is in driving connection with the lifting wheel; the lifting wheel is operatively connected with the supporting plate; the driving component can drive the lifting wheel to rotate so as to lift the supporting plate and the workpiece to be machined arranged on the supporting plate.

By this construction, one possible form of construction of the lift assembly is given. For example, the workpiece to be processed is a silicon rod to be ground.

Compared with the mode of carrying out manual participation after the workpiece to be processed is directly blanked (bar withdrawing), the workpiece to be processed is directly placed in the feeding device for readjustment, so that the adjustment efficiency is improved. Compared with the mode of adjusting through a (fixed or movable) chuck in the feeding direction, the feeding device has the advantages that due to the fact that the number of parts involved in the structure of the feeding device is relatively large, feeding precision adjustment in four dimensions can be achieved through different parts. In addition, because the feeding device and the (fixed and movable) chuck are structurally separated, the adjustment of corresponding dimensions can be realized more easily by means of adding parts and the like.

It should be noted that the drive connection in "the drive member is in drive connection with the elevator wheel" is to be understood as: when the driving component drives, the lifting wheel can concomitantly generate actions related to the driving action, namely the lifting wheel can generate actions such as lifting and the like in response to the driving of the driving component. For example, the driving component and the lifting wheel can be in direct driving connection or indirect driving connection.

It should be noted that the operative connection in "the lifting wheel is operatively connected to the pallet" should be understood as: when one of the lifting wheels and the supporting plate acts, the other one concomitantly acts in association with the action, namely, the two have an association at the operation level, for example, the two can be in direct association or indirect association.

It is understood that a person skilled in the art can determine the structural form, the number of the lifting wheels included in the lifting wheel group, the relative position between each lifting wheel (in the case that the lifting wheels include a plurality of lifting wheels) and the relative position between each lifting wheel and the supporting plate according to actual needs. Such as may be: the lifting wheels comprise two groups, and the two groups of lifting wheels are arranged at positions close to two ends of the silicon rod; the lifting wheels comprise four lifting wheels which are respectively marked as A, B, C, D, wherein A and C are one group, the silicon rods arranged on the supporting plate can realize the first type of lifting by means of the lifting wheels (A, C), wherein B and D are one group, and the silicon rods arranged on the supporting plate can realize the second type of lifting by means of the lifting wheels (B, D); and the like.

It can be understood that, a person skilled in the art can determine the specific form of displacement of the lifting wheel set driven by the driving component and the corresponding relationship between the driving component and the lifting wheel set according to actual needs. For example, the driving component can directly drive or indirectly drive the lifting wheel set to displace. The form of indirect drive may be: the power output end of the driving component is directly connected with one or more intermediate components, and when the state of the driving component driving the intermediate components is changed, the lifting wheels can generate displacement along the height direction based on the state change. And the corresponding relationship between the driving components and the lifting wheel groups can be one-to-one, one driving component corresponds to a plurality of lifting wheels, one lifting wheel corresponds to a plurality of driving components, and the like. Illustratively, the lifting wheel comprises two, and the two driving components respectively drive the two lifting wheels in a relatively independent manner.

It can be understood that, the skilled person can determine the direction of the displacement generated by the lifting wheel under the driving of the driving component and the displacement amount according to the actual needs. For example, the displacement may be in a direction including only the height direction, or may be in other directions including but not limited to the horizontal direction. For the displacement amount, a person skilled in the art can set how the driving component can cause the lifting wheel to generate the expected displacement amount according to the driving mode of the driving component for driving the lifting wheel to generate the displacement, the displacement amount required by the workpiece to be processed, and the like.

It can be understood that a person skilled in the art can determine the specific structural form of the supporting plate according to actual requirements, such as directly arranging the supporting plate or adding a corresponding functional structure on the supporting plate and then arranging the workpiece to be processed on the functional structure.

With regard to the above lifting assembly, in a possible embodiment, the lifting assembly further comprises a constraining member, and the pallet is displaced in the height direction by the constraining member, and thus lifts the pallet and the workpiece to be processed disposed on the pallet.

With this configuration, the pallet can be lifted in the vertical direction by the guiding and/or restraining action of the restraining member, and the reliability of the lifting can be ensured.

It is understood that the structural form, the number of the guide and limit stop members, the relationship between the guide and limit stop members and the supporting plate, etc. can be determined by those skilled in the art according to actual requirements. Such as may be: the guide limiting component comprises a vertical baffle or a vertical baffle rib and the like which surround the supporting plate or partially surround the supporting plate.

With regard to the above-mentioned lifting assembly, in a possible embodiment, the lifting wheel is fixedly connected to the pallet in a rotatable manner, the lifting assembly further comprising a transmission member connected on the one hand to the drive member and on the other hand interfacing with the lifting wheel, the transmission member having an inclined guide surface in a position close to the lifting wheel such that: when the driving component drives the transmission component to move transversely, the lifting wheel rotates along the guide surface and lifts the supporting plate and the workpiece to be machined arranged on the supporting plate.

By such a construction, a possible way of mounting the lifting wheel and a possible way of realizing the displacement of the lifting wheel driven by the driving member are given.

It should be noted that the rotation of the "lifting wheel is fixedly connected to the supporting plate in a rotatable manner" should be understood as the rotating property of the lifting wheel, and the fixed connection should be understood as the connection relationship between the lifting wheel and the supporting plate. Illustratively, the lifting wheel is provided with a shaft, the shaft is fixedly connected to the supporting plate, and the lifting wheel can rotate around the shaft. Illustratively, the pallet is a generally housing structure, the workpiece to be processed is fixed to the top of the housing structure, and the elevator wheels are mounted on the sides of the housing structure through wheel shafts.

It is understood that the structural form, the number of the transmission components and the specific motion form generated by the driving components can be determined by those skilled in the art according to actual requirements. For example, the transmission component may be a plate-shaped structure, a block-shaped structure, a strip-shaped structure, etc., and the movable form of the transmission component may include movement, rotation, a combination of the two, etc. For example, the lifting wheels may share one transmission member, each lifting wheel may be provided with a plurality of transmission members, and the lifting wheels may correspond to the transmission members one by one.

A guide surface as inclined is to be understood here as: the height of the downstream side of the guide surface should be lower than the height of the upstream side of the guide surface as viewed in the traversing direction of the transmission member. The guide surface having such a characteristic may be a slant surface, a (concave, convex) curved surface, a combination thereof, or the like. The guide surface is used as an inclined surface, the lifting direction is used as a vertical direction as an example, the transmission part moves transversely along with the extension of the power output end of the power cylinder, and due to the arrangement of the inclined surface, the lifting wheel generates vertical upward displacement along with rotation and rolling of the lifting wheel on the inclined surface, so that the supporting plate can be driven to generate displacement along the vertical direction, and the lifting of the workpiece to be machined is realized. Obviously, the length of the inclined plane along the axial direction of the power output end, the slope of the inclined plane and the like can be flexibly determined by a person skilled in the art according to the actual requirements.

In a possible embodiment, the lifting assembly comprises a connecting member, which is disposed on the transmission member by a fixed connection or an integral molding manner, and is connected with the power output end of the driving member.

By this construction, a particular form of connection between the drive member and the transmission member is given.

It is understood that the structural form of the connecting component and the specific connecting mode with the transmission component/power output end, the specific position where the connection occurs, and the like can be determined by those skilled in the art according to actual requirements. The connecting part is, for example, fixedly connected to the transmission part by means of a fastening element.

In a possible embodiment, for the above-mentioned lifting assembly, the connecting member is a connecting block having an extended end connected to the power take-off.

By such a constitution, a specific form of the connecting member is given.

In a possible embodiment for the above-described lift assembly, the drive member is a power cylinder or an electric motor.

By such a construction, a possible design of the drive member is given,

for example, the power cylinder can be an electric cylinder, an air cylinder, a hydraulic cylinder and the like. At this time, the transmission part is directly connected with the piston as a power output end.

In the case where the driving member is a motor, the shaft of the motor should be indirectly connected to the transmission member through a transmission mechanism such as a lead screw nut pair to effect the lateral movement of the transmission member.

With regard to the above-described lifting assembly, in one possible embodiment, the lifting assembly further comprises a base plate, a chamber is formed between the base plate and the pallet, the lifting wheels and the transmission member are accommodated in the chamber and/or the driving member is disposed on a side of the base plate away from the chamber.

By this construction, a particular form of construction is given in which the transmission member and the drive member form a lift assembly.

With respect to the above-described lift assembly, in one possible embodiment, the lift assembly further comprises a base plate, the base plate and the pallet forming a chamber therebetween, the restraint member being secured to the base plate.

By securing the restraining members to the base plate, the integrity of the lift assembly or the compactness of the lift assembly between the various components is ensured.

In a possible embodiment, for the lifting assembly, the constraining element is a connecting shaft, and the supporting plate is provided with a hole, and the connecting shaft is freely accommodated in the hole.

By such a construction, a specific manner of connection of the restricting member is given.

Particularly, the movement of the supporting plate relative to the bottom plate along other directions in the horizontal plane is limited through the arrangement of the connecting shaft, and the lifting reliability is guaranteed. The integrity of the lift assembly, such as the bottom end of the connecting shaft, may then be fixedly secured to the base plate.

It can be understood that, a person skilled in the art can determine the number of the connecting shafts and the specific connecting mode between the connecting shafts and the bottom plate according to actual requirements. Illustratively, the connecting shaft includes one, disposed at a location approximately in the middle of the platform of the lift assembly.

With regard to the above lifting assembly, in one possible embodiment, the lifting assembly further comprises a return spring disposed between the base plate and the support plate.

By this construction, a specific form of construction of the lift assembly is given.

Particularly, through the setting of reset spring, guaranteed the reliable return of layer board. For example, in the process that the power output end (piston) of the power cylinder extends out and the supporting plate is lifted, the return spring is in a stretched state. When the power output end of the power cylinder retracts, the supporting plate descends under the combined action of the pulling force of the reset spring and the self gravity of the supporting plate, and therefore the supporting plate is reset.

It is understood that the specification (such as elastic coefficient, etc.) of the return spring, the number of the arrangement, the arrangement position and the specific connection mode with the bottom plate and the supporting plate, etc. can be determined by those skilled in the art according to actual requirements. Illustratively, the return spring includes a plurality of springs distributed around the circumference of the connecting shaft. In addition, a return spring can also be sleeved outside the connecting shaft.

With regard to the above lifting assembly, in a possible embodiment, the position of the supporting plate near the middle of one side of the workpiece to be processed is a structure recessed away from the workpiece to be processed, as viewed along the length direction of the workpiece to be processed.

With this configuration, the workpiece can be more reliably set on the pallet.

For the above lifting assembly, in a possible embodiment, the supporting plate includes a supporting plate main body and a supporting plate, the lifting wheel is disposed in the supporting plate main body, and the workpiece to be processed is disposed in the supporting plate, wherein the supporting plate is recessed in a direction away from the workpiece to be processed at a position close to a middle portion of one side close to the workpiece to be processed.

By means of this construction, a specific design of the pallet is given.

For the lifting assembly, in a possible embodiment, viewed in the length direction of the workpiece to be processed, the support plates include two groups which are separately arranged, each group of the support plates includes at least one support plate, and a structure which is recessed in the direction away from the workpiece to be processed is formed between the two groups of the support plates; or the supporting plate is of an integrally formed structure, and a structure which is sunken towards the direction far away from the workpiece to be machined is formed at the position, close to the middle part, of the supporting plate.

By such a construction, a possible way of forming the recess in the pallet is given.

With regard to the above lifting assembly, in a possible embodiment, the lifting wheel is a cam, and the driving part is directly in driving connection with the cam or is in driving connection with the cam through a transmission mechanism, so that the driving part drives the cam to rotate and thus lift the pallet and the to-be-processed member arranged on the pallet.

By means of such a configuration, an alternative design of the lifting wheel and the corresponding way of lifting the workpiece to be machined is provided. For example, the cam is arranged below the supporting plate and is contacted with the bottom surface of the supporting plate.

If the driving part matched with the cam is a motor, the power output end of the motor can be in driving connection with the cam through a transmission mechanism in a belt transmission mode, a chain transmission mode or a gear transmission mode and the like.

In a second aspect, the invention provides a grinding machine comprising a lifting assembly as described in any one of the preceding claims.

It will be appreciated that the grinding machine has all the technical effects of any one of the lifting assemblies described above, and will not be described in detail herein.

For example, the configuration of the lifting assembly on the grinding machine may be as follows: the grinding machine comprises a feeding device, the feeding device comprises a feeding platform, and the lifting assembly is arranged on the feeding platform.

In a possible embodiment, the grinding machine is a silicon rod machining grinding machine.

By such a constitution, a specific form of the member to be worked is given.

In a third aspect, the present invention provides a lifting control method for a grinding machine, where the grinding machine includes a feeding device and a grinding device, the feeding device includes a lifting assembly, the grinding device includes a grinding assembly and a detection assembly, the lifting assembly includes a driving component, a lifting wheel set and a supporting plate, the lifting wheel set includes at least one lifting wheel, and the control method includes: judging whether the state of the workpiece to be machined meets the condition for grinding the workpiece by the grinding assembly according to the detection result of the detection assembly; if not, selectively returning the workpiece to be processed to the feeding device, and operating the driving part, so as to: the lifting wheel is driven by the driving part to rotate so as to lift the supporting plate and the workpiece to be machined, and the position state of the workpiece to be machined along the vertical direction is adjusted.

With such a configuration, it is possible to seek to obtain a state in accordance with a grinding condition of the workpiece to be processed, such as a silicon rod or the like, by performing adjustment in the dimension of a position state in the vertical direction of the workpiece to be processed in the feeding stage (hereinafter, position adjustment along the Z axis).

It will be appreciated that the base unit may adopt all possible connection means provided that it has the base unit described above and that it is ensured that the control method is implemented. In other words, this solution obviously has all the technical effects of any one of the aforementioned lifting assemblies, and is not described herein again.

Compared with the mode of carrying out manual participation after the workpiece to be processed is directly discharged (rod withdrawing), the invention directly places the workpiece to be processed in the feeding device for re (repeated) adjustment, thereby improving the adjustment efficiency on the premise of ensuring the precision. Compared with the mode of repeatedly adjusting through a (fixed or movable) chuck in the feeding direction, the feeding precision adjustment of four dimensions can be realized through different components due to the fact that the number of components involved in the structure of the feeding device is relatively large. In addition, because the feeding device and the (fixed and movable) chuck are structurally separated, the adjustment of corresponding dimensions can be realized more easily by means of adding parts and the like.

It should be noted that "selectively placing the workpiece to be processed on the feeding device" should be understood as follows: the condition that the state of the workpiece to be machined does not satisfy the condition that the grinding assembly grinds the workpiece may include that a rod needs to be directly withdrawn, that readjustment is needed but the feeding device cannot achieve such adjustment, that readjustment is needed and that adjustment can be achieved by the feeding device (only by the feeding device or cooperation of the feeding device with other devices, etc.), and the like. Therefore, it is an effective control to place the member to be worked on the loading device only in a case where "readjustment is required and adjustment can be achieved by the loading device".

With regard to the above-mentioned method for controlling the lifting of the grinding machine, in a possible embodiment, the lifting assembly further includes a restraining member, and the supporting plate is displaced in the height direction by the restraining member, and thus lifts the supporting plate and the workpiece to be machined disposed on the supporting plate.

With this configuration, the pallet can be lifted in the vertical direction by the action of the restricting member such as guiding and/or restricting.

With regard to the above lifting control method for a grinding machine, in a possible embodiment, the lifting assembly further includes a transmission component having an inclined guide surface at a position close to the lifting wheel, and accordingly, the "driving the lifting wheel to rotate by the driving component so as to lift the supporting plate and the workpiece to be processed arranged on the supporting plate, and adjusting the position state of the workpiece to be processed in the vertical direction" includes: when the driving part drives the transmission part to move transversely, the lifting wheel rotates along the guide surface, and therefore the supporting plate and the workpiece to be machined arranged on the supporting plate are lifted, and the position state of the workpiece to be machined in the vertical direction is adjusted.

By such a construction, a possible realisation of the driving member driving the lifting wheel to displace and a corresponding way of controlling the lifting is given.

In a possible embodiment, the lifting control method for the grinding machine includes that the lifting wheel is a cam, and accordingly, the step of driving the lifting wheel to rotate by the driving part so as to lift the supporting plate and the workpiece to be machined arranged on the supporting plate, and further adjusting the position state of the workpiece to be machined along the vertical direction includes: the driving part drives the cam to rotate and accordingly lifts the supporting plate and the workpiece to be machined arranged on the supporting plate, and the position state of the workpiece to be machined along the vertical direction is adjusted.

By means of such a construction, an alternative design of the lifting wheel and a corresponding lifting control are provided. .

In a fourth aspect, the present invention provides a computer readable storage medium comprising a memory adapted to store a plurality of program codes, the program codes adapted to be loaded and executed by a processor to perform the method of lift control for a grinding machine as described in any one of the preceding claims.

It can be understood that the computer readable storage medium has all the technical effects of any one of the above-mentioned lifting control methods for a grinding machine, and the details are not repeated herein.

It will be understood by those skilled in the art that all or part of the processes of the present invention for implementing the method for controlling the lifting of the grinding machine may be implemented by using a computer program to instruct related hardware, where the computer program may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of the above-mentioned method embodiments. Wherein the computer program includes computer program code, it is understood that the program code includes, but is not limited to, program code for performing the above-described method of grinder lift control. For convenience of explanation, only portions relevant to the present invention are shown. The computer program code may be in source code form, object code form, an executable file or some intermediate form, etc. The computer-readable storage medium may include: any entity or device capable of carrying said computer program code, media, usb disk, removable hard disk, magnetic diskette, optical disk, computer memory, read-only memory, random access memory, electrical carrier wave signals, telecommunication signals, software distribution media, etc. It should be noted that the computer-readable storage medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer-readable storage media may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.

In a fifth aspect, the present invention provides a computer apparatus comprising a memory and a processor, the memory being adapted to store a plurality of program codes, the program codes being adapted to be loaded and run by the processor to perform the method of lift control for a grinding machine as claimed in any one of the preceding claims.

It can be understood that the equipment has all the technical effects of the lifting control method of the grinding machine in any one of the previous items, and the details are not repeated herein. The device may be a computer controlled device formed of various electronic devices.

In a sixth aspect, the invention provides a lift control system for a grinding machine, the control system comprising a control module configured to be able to perform the method of lift control for a grinding machine of any one of the preceding claims.

It can be understood that the computer readable storage medium has all the technical effects of the method for controlling the lifting of the grinding machine described in any one of the foregoing, and the details are not described herein again.

In the description of the present invention, a "control module" may include hardware, software, or a combination of both. A module may comprise hardware circuitry, various suitable sensors, communication ports, memory, may comprise software components such as program code, or may be a combination of software and hardware. The processor may be a central processing unit, microprocessor, image processor, digital signal processor, or any other suitable processor. The processor has data and/or signal processing functionality. The processor may be implemented in software, hardware, or a combination thereof. Non-transitory computer readable storage media include any suitable medium that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random-access memory, and the like.

Further, it should be understood that, since the control module is set only for illustrating the functional units in the system corresponding to the lifting control method of the grinding machine of the present invention, the physical device corresponding to the control module may be the processor itself, or a part of software, a part of hardware, or a part of a combination of software and hardware in the processor. Thus, the number of control modules is only exemplary. Those skilled in the art will appreciate that the control module may be adaptively split according to the actual situation. The specific splitting of the control module does not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solution after splitting will fall into the protection scope of the present invention.

Drawings

Preferred embodiments of the invention are described below for silicon rods to be ground (in the following simply referred to as silicon rods) and with reference to the accompanying drawings, in which:

FIG. 1 shows a schematic diagram of the structure of a grinding machine in accordance with one embodiment of the invention;

FIG. 2 is a first schematic diagram of a loading assembly of a grinding machine in accordance with one embodiment of the invention, showing a centering assembly;

fig. 3 shows a structural schematic diagram two of a feeding device of the grinding machine according to an embodiment of the invention, and the diagram does not show a centering assembly;

FIG. 4 shows a schematic cross-sectional view of a lift assembly in a loading device of a grinding machine in accordance with one embodiment of the present invention;

FIG. 5 is a first schematic sectional view of a lifting assembly in a loading device of a grinding machine according to one embodiment of the invention, wherein the internal structure of the lifting assembly is shown;

FIG. 6 is a second cross-sectional view of the lifting assembly of the loading device of the grinding machine in accordance with one embodiment of the present invention, showing details of the mounting of the eccentric shaft;

fig. 7 is a schematic structural diagram illustrating a movable end assembly clamped in a clamping assembly of a loading device of a grinding machine according to an embodiment of the invention;

fig. 8 is a schematic structural view of a clamping and fixing end assembly in a clamping assembly of a feeding device of a grinding machine according to an embodiment of the invention;

fig. 9 shows a cross-sectional (partial) schematic view of a clamping fixed end assembly in a clamping assembly of a loading device of a grinding machine in accordance with an embodiment of the invention;

FIG. 10 is a schematic diagram illustrating the structure of a loading table assembly in the loading device of the grinding machine in accordance with one embodiment of the present invention;

FIG. 11 illustrates a schematic structural view of a centering assembly of the grinding machine in accordance with one embodiment of the present invention;

fig. 12 is a schematic structural view showing a feed slide apparatus of a grinding machine according to an embodiment of the present invention;

fig. 13 is a schematic view showing a structure of a rough grinding wheel in a grinding apparatus of a grinding machine according to an embodiment of the invention;

fig. 14 is a schematic view showing the construction of a detecting unit in the grinding apparatus of the grinding machine according to one embodiment of the invention;

fig. 15 is a schematic view showing a detection state of a detection unit in a grinding apparatus of a grinding machine according to an embodiment of the present invention; and

fig. 16 is a flowchart illustrating a method for controlling the elevation of a grinding machine according to an embodiment of the present invention.

List of reference numerals:

<xnotran> 1, 101, 102, 11, 111, 1111, 11111, 11112, 11113, 3567 zxft 3567, 3592 zxft 3592, 3725 zxft 3725, 4235 zxft 4235, 11115, 4287 zxft 4287, 5252 zxft 5252, 11116, 1117, 6258 zxft 6258, 1118, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 1112, 11121, 6258 zxft 6258, X 6258 zxft 6258, Y 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 11122, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 112, 1121, 11240, 11241, 11242, 11251, 11252, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 6258 zxft 6258, 112525, 11261, 6258 zxft 6258, 11262, 113, 1131, 1132, 11331, 11332, 11333, 6258 zxft 6258, 12, 1201, 1202, 1203, 1204, 1205, 121, 1211, 122, 1221, 1222, 13, 131, 1311, 1312, 1313, 1314, 132, 133, 1331, </xnotran> A base plate 1332, a sliding plate 1333, a third probe 1334, a third cylinder 1335, a fifth rail slide 1336 and a silicon rod 2.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described with reference to a structure including four-dimensional adjustment, this is not intended to limit the scope of the present invention, and those skilled in the art may flexibly modify the structure without departing from the principle of the present invention, such as removing one or more dimensions (e.g., in some cases, the accuracy of one or more dimensions does not meet the requirement), or replacing the structure of the feeding assembly corresponding to the adjustment of the feeding accuracy of one or more dimensions with another structure.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, while numerous specific details are set forth in the following description in order to provide a better understanding of the invention, it will be apparent to those skilled in the art that the invention may be practiced without some of these specific details. In some instances, the principles of grinding machines and the like, which are well known to those skilled in the art, have not been described in detail in order to not unnecessarily obscure the present invention.

For the purpose of description, the present invention first defines a three-dimensional coordinate system of such a silicon rod. The center of the silicon rod is the origin, the reverse direction of the feeding direction of the silicon rod on the grinding machine is the X-axis forward direction, the feeding direction of the silicon rod on the grinding machine is the Y-axis forward direction, and the vertical upward direction is the Z-axis forward direction. Based on this, the precision adjustment realized by the feeding assembly of the invention comprises four dimensions: the silicon rod is lifted a certain distance along the Z-axis (hereinafter referred to as position adjustment along the Z-axis), moved a certain distance along the X-axis (hereinafter referred to as position adjustment along the X-axis), rotated a certain angle around the Z-axis direction (hereinafter referred to as angle adjustment along the Z-axis), and rotated a certain angle around the X-axis direction (hereinafter referred to as angle adjustment along the X-axis). According to the orientation of fig. 1, the X-axis forward direction is from back to front, the Y-axis forward direction is from left to right, and the Z-axis forward direction is vertically upward. Correspondingly, the position along the X/Y/Z axis is adjusted to move a certain distance in the front-back/left-right/vertical direction, and the angle along the X/Y/Z axis is adjusted to rotate a certain distance along the axis in the front-back/left-right/vertical direction.

Fig. 1 to 15 show a schematic structural diagram of a grinding machine according to an embodiment of the present invention, fig. 2 shows a first schematic structural diagram of a loading device of a grinding machine according to an embodiment of the present invention, fig. 3 shows a second schematic structural diagram of a loading device of a grinding machine according to an embodiment of the present invention, fig. 4 shows a schematic sectional view of a lifting assembly in a loading device of a grinding machine according to an embodiment of the present invention, fig. 5 shows a first schematic sectional view of a lifting assembly in a loading device of a grinding machine according to an embodiment of the present invention, fig. 6 shows a second schematic sectional view of a lifting assembly in a loading device of a grinding machine according to an embodiment of the present invention, fig. 7 shows a schematic structural diagram of a movable end assembly clamped in a clamping assembly of a loading device of a grinding machine according to an embodiment of the present invention, fig. 8 shows a schematic structural diagram of a fixed end assembly clamped in a clamping assembly of a loading device of a grinding machine according to an embodiment of the present invention, fig. 9 is a schematic sectional view showing a clamping fixed end assembly in a clamping assembly of a loading device of a grinding machine according to an embodiment of the present invention, fig. 10 is a schematic structural view showing a loading table assembly in the loading device of the grinding machine according to an embodiment of the present invention, fig. 11 is a schematic structural view showing a centering assembly of the grinding machine according to an embodiment of the present invention, fig. 12 is a schematic structural view showing a feed slide table device of the grinding machine according to an embodiment of the present invention, fig. 13 is a schematic structural view showing a rough grinding wheel in a grinding device of the grinding machine according to an embodiment of the present invention, fig. 14 is a schematic structural view showing a detection assembly in the grinding device of the grinding machine according to an embodiment of the present invention, and fig. 15 is a schematic structural view showing a detection state of the detection assembly in the grinding device of the grinding machine according to an embodiment of the present invention. The present invention is described below with reference to some or all of fig. 1 to 15.

Referring mainly to fig. 1, in a possible embodiment, the main body of the grinding machine 1 mainly includes a base 101 and a vertical frame 102 disposed at the bottom, and the base 101 has a certain level adjustment function, so as to provide a mounting surface with a high level for the structures of the feeding device 11, the grinding device 13, and the like of the grinding machine 1. Wherein, the top of the vertical frame 102 is provided with a guide rail on which the feeding slide table device 12 is mounted. The grinding machine is mainly used for grinding the silicon rod 2 after being cut as a workpiece to be machined to a set specification. Specifically, in an ideal state, the silicon rod 2 after being opened is generally a rectangular parallelepiped having the same width and height. In practice, however, the surface of the opened silicon rod 2 is not flat, as is usually the case: the middle part of the silicon rod is more convex than the two end parts, and the size of the silicon rod knife outlet is larger than that of the knife inlet (the side length of the square of the diamond wire cut-out end surface is larger than that of the square of the diamond wire cut-in end surface). Therefore, the cut silicon rod needs to be ground to an ideal rectangular parallelepiped with a standard specification by a grinding machine.

Referring mainly to fig. 2 and 3, in one possible embodiment, the loading device 11 is mainly used for clamping the silicon rod 2 by the fixed chuck 121 and the movable chuck 122 of the feeding slide unit 12 after the silicon rod is adjusted to a proper position and angle. In order to reduce the grinding amount, reduce the silicon loss and improve the grinding efficiency, the grinding machine 1 needs a high feeding precision. In case the feeding accuracy is up to standard, the ideal axis of the silicon rod 2 and the axis between the (stationary, movable) chucks should have a high coaxiality. The invention mainly enables the coaxiality to reach a more ideal level through the adjustment of the feeding device.

In one possible embodiment, the feeding device 11 mainly comprises a feeding assembly 111, a centering assembly 112 and a feeding table assembly 113. Wherein the feeding assembly 111 and the feeding table assembly 113 require adjustment of the position and posture (hereinafter referred to as the attitude) of the silicon rod 2 in the aforementioned four dimensions, the centering assembly 112 is used to mainly determine the amount of adjustment of the attitude of the silicon rod 2 by the feeding assembly 111. Specifically, loading assembly 111 generally includes a lift assembly 1111 and a clamp assembly 1112. According to the detection result of the centering assembly 112, the lifting assembly 1111 is mainly used for performing position adjustment along the Z-axis and angular adjustment along the X-axis (rotation in a vertical plane) on the silicon rod 2, and the clamping assembly 1112 is mainly used for performing angular adjustment along the Z-axis (rotation in a horizontal plane) on the silicon rod 2. The feeding table assembly 113 is mainly used for adjusting the position of the silicon rod along the X-axis in the process of moving the clamping from the feeding assembly 111 to the centering assembly 112 of the silicon rod 2. Based on this, after the feeding assembly 111 completes the adjustment of the silicon rod in four dimensions, the silicon rod with the (fixed, movable) chuck clamping pose reaching the standard is made, and the feeding process is completed.

Referring primarily to fig. 4-6, in one possible embodiment, lift assembly 1111 primarily includes a first base plate 11111 (base plate), an electric cylinder 11112 as a driving part, a driving plate 11113 as a driving part, a lift wheel set including a first lift wheel 111141 (e.g., the first lift wheel includes two wheel units disposed on a first wheel axle 111191) and a second lift wheel 111142, and a support plate 11115, wherein driving plate 11113 has inclined surfaces 3926 zxft 11126 inclined downward from left to right as guide surfaces at positions corresponding to first lift wheel 111141 and second lift wheel 111142, respectively.

In this example, the connection between the power output end of the electric cylinder 11112 and the transmission plate 11113 is as follows: the first bottom plate 11111 is provided with a connecting block 11116 as a connecting component, the connecting block 11116 is fixedly connected with a transmission plate 11113 above the first bottom plate 11111 by means of a fastener such as a screw, and the like, the lower part of the connecting block 11116 is provided with a protruding end, correspondingly, the power output end of the electric cylinder 11112 is provided with an annular groove matched with the protruding end, and the connecting block 11116 is connected with the electric cylinder 11112 by the matching of the protruding end and the annular groove.

Thus, when the power output end of the electric cylinder 11112 extends rightward, the driving plate 11113 disposed at the bottom of the housing is driven to move rightward synchronously. In accordance with this, the two lifting wheels mounted on the pallet 11115 can roll along the inclined plane 111131 from right to left, i.e. from low to high, and the pallet can be driven to move in the vertical direction along with the rolling. In this way, the position of the silicon rod set on the support plate 11115 along the Z axis is adjusted. Similarly, the power output end of the electric cylinder 11112 retracts, the transmission plate 11113 moves leftwards, the lifting wheel rolls from high to low, and the supporting plate 11115 descends. For example, in order to better guide the movement of the driving plate 11113, a sliding rail adapted to the movement track of the driving plate 11113 may be provided on the first bottom plate 11111.

As described above, one of the expressions that the surface of the silicon rod 2 after the cutting is not flat is: the middle portion of the silicon rod is convex compared to the two end portions. In order to enable a silicon rod having this property to be placed on the support plate more smoothly, the middle portion of the support plate is recessed farther away from the silicon rod than both sides, i.e., downward in the drawing.

Illustratively, the support plate 11115 comprises a support plate body 111151, two sides of the top of the support plate body extending along the length direction thereof are respectively provided with an upwardly extending support plate 111152 (such as mainly made of nylon material), the upper surface of the support plate 111152 is a reference surface (such as referred to as reference surface a) directly contacting with the lower surface of the silicon rod 2, and the support plate forms the aforementioned recess near the middle part, as a specific implementation manner: each side is provided with two separately arranged support plates 111152 which can be fixed to the top of the pallet by means of fasteners such as screws, for example, with a recess formed between the two support plates. In this example, the support plate has a structure to avoid the silicon rod at a mounting portion corresponding to the fastener, such as a plurality of mounting sites provided on the support plate, the screw is provided at a position corresponding to the mounting site, and in a mounted state, the screw is completely accommodated at the mounting site and thus the top of the screw is not in contact with the bottom of the silicon rod.

It can be understood that, a person skilled in the art can flexibly adjust the manner of forming the recess in the pallet according to actual requirements, for example, two segments of separately arranged support plates can be integrally arranged, then the middle portion of the support plates can be integrally arranged to be the recess, and the support plates and the pallet body can be integrally arranged.

In one possible embodiment, the first base plate 11111 is provided with a connecting shaft 1117 engaged with the support plate 11115, and a return spring 1118 is further provided between the first base plate and the support plate. By the arrangement of the connecting shaft 1117, the movement of the pallet 11115 in the X-axis and Y-axis directions is restricted, so that the pallet 11115 can move only in the Z-axis direction under the guidance of the connecting shaft. When the electric cylinder 11112 is extended and the pallet 11115 is raised, the return spring 1118 is in a compressed/extended (e.g., compressed in this example) state. When the electric cylinder 11112 retracts, the supporting plate 11115 descends under the action of the elastic force of the return spring 1118 and the self-gravity of the supporting plate 11115, so that the supporting plate 11115 is reset. As in this example, the pallet is provided with a hole in which the connecting shaft is freely accommodated so that the pallet can smoothly rise (rise)/fall (return) in the axial direction of the connecting shaft. The bottom end of the connecting shaft is fixedly connected with the first bottom plate or integrally formed, the top end of the connecting shaft is provided with a radial size larger than the hole, and the axial size of the connecting shaft can ensure the lifting amount required by the silicon rod.

As in this example, the pallet body of the pallet is substantially an enclosure structure with an open bottom, the aforementioned support plate is disposed on the top of the enclosure structure, and the elevating wheels are disposed on the sides of the enclosure structure. Illustratively, the two lift wheels are mounted to the pallet 11115 in the manner of: first lift wheel 111141 and second lift wheel 111142 are mounted to the side of the enclosure structure through first axle 111191 and second axle 111192, respectively. When the electric cylinder 11112 extends/retracts, the supporting plate 11115 realizes the lifting/resetting of the supporting plate 11115 along with the rotation of the two lifting wheels and the rolling of the two lifting wheels on the inclined surface 111131. Based on this, the function of the lifting component 1111 may be improved, and specifically, the lifting component may have a function of adjusting the position adjustment of the silicon rod along the Z axis, and may also have a function of adjusting the angle adjustment of the silicon rod along the X axis.

In one possible embodiment, one of first axle 111191 and second axle 111192 may be modified to an eccentric shaft (the outer circle of the shaft is parallel to and does not coincide with the axis of the outer circle), such as in this example first axle 111191 corresponding to first elevator wheel 111141 is modified to an eccentric shaft, and the eccentric shaft is configured with first adjustment motor 1111911, such as the first adjustment motor is connected to the eccentric shaft by a reducer-coupling. In this way, when the first adjustment motor drives the eccentric shaft corresponding to the first lifting wheel to rotate by a certain angle, the first lifting wheel 111141 installed on the eccentric shaft will lift/descend by a certain distance, and at this time, because a height difference occurs between the two lifting wheels, the supporting plate 11115 will rotate by a certain angle around the X axis, thereby realizing the angle adjustment of the silicon rod along the X axis. In accordance with this, the joint bearing 11171 is mounted on the connecting shaft 1117, so that the connecting shaft is provided to restrict the movement of the supporting plate 11115 only in the X-axis and Y-axis directions, and not to restrict the rotation of the supporting plate 11115 about the X-axis. In an actual product, for example, a mounting position corresponding to the first adjustment motor may be provided at each of positions corresponding to the first lifting wheel 111141 and the second lifting wheel 111142, and in this example, a removable closing plate 1111921 may be provided at a position corresponding to the second lifting wheel 111142. By removing the sealing plate, the first adjustment motor can be replaced to a position corresponding to the second lifting wheel 111142.

Therefore, the silicon rods on the supporting plate can be lifted by a certain height along the vertical direction through the matching of the electric cylinder, the transmission plate and the (first and second) lifting wheels. Through the cooperation of the first adjusting motor, the eccentric shaft and the first lifting wheel, different local positions of the silicon rod on the supporting plate along the height direction can be distinguished. In this way, a position adjustment along the Z-axis and an angular adjustment along the X-axis of the silicon rod can be achieved by means of the lifting assembly.

Referring mainly to fig. 7 to 9, in one possible embodiment, the clamping assembly 1112 mainly includes a clamping movable end assembly 11121 and a clamping fixed end assembly 11122, and the silicon rod 2 on the reference surface a of the support plate 11115 can be clamped in the X-axis direction by clamping the movable end assembly 11121 relative to the clamping fixed end assembly 11122. It should be noted that the clamping movable end assembly and the clamping fixed end assembly are only one specific form of the clamping assembly, and for example, both the clamping movable end assembly and the clamping fixed end assembly may be configured to be movable.

In one possible embodiment, the clamping movable end assembly 11121 mainly comprises a first cylinder 111211, two sets of guide rail sliders (an X-axis guide rail slider 111212, a Y-axis guide rail slider 111213), a movable end return spring 111214 and a movable clamping plate 111215, after the silicon rod 2 to be ground is placed on the datum surface a of the lifting assembly 1111, the first cylinder 111211 is extended, and the slider of the X-axis guide rail slider 111212 can slide on the guide rail by pushing the bottom plate of the clamping movable end assembly 11121 so as to push the movable clamping plate 111215 to move towards the clamping fixed end assembly 11122, so that the silicon rod is clamped along the X-axis direction. When the (fixed and movable) chucks clamp the silicon rod, the movable chuck 122 pushes the silicon rod to move slightly along the Y axis, and accordingly, the movable clamping plate 111215 also moves slightly along the Y axis in a manner that the slide block of the Y axis guide rail slides on the guide rail, so that the two movable end return springs 111214 arranged along the Y axis direction are respectively in a compression state and a tension state. After the silicon rods are clamped by the (fixed and movable) chucks, the first air cylinder 111211 retracts, and meanwhile, the two movable end return springs 111214 restore to enable the movable clamping plate 111215 to restore.

In one possible embodiment, clamp fixed end assembly 11122 consists essentially of a fixed clamp plate 111221 and an adjustment assembly. The fixed clamping plate is provided with a reference surface (such as a reference surface b), and the silicon rod can be clamped along the X direction by driving the movable end clamping plate to move towards the direction close to the fixed end clamping plate by the first air cylinder 111211. Similar in structure and function to the clamp moving end assembly 11121, the clamp fixed end assembly 11122 is also provided with a Y-axis rail slide and a fixed end return spring that enable the moving end clamp plate to return. The adjusting component is mainly used for realizing the angle adjustment of the silicon rod along the Z axis.

In one possible embodiment, the adjusting assembly mainly comprises a second bottom plate 1112221, an adjusting plate 1112222 and a positioning block 1112223, wherein positioning block 1112223 can be fixed on second bottom plate 1112221 by a fastener such as a screw 11122231, adjusting plate 1112222 is fixed on a fixed clamping plate on one side thereof, and adjusting plate 1112222 is mounted on second bottom plate 1112221 on the other side thereof (near left side position) by positioning block 1112223. Wherein, a gap exists between the positioning block 1112223 and the adjusting plate 1112222, thereby allowing the adjusting plate 1112222 to rotate around the Z axis in a small angle. Thus, the silicon rod 2 clamped between the fixed end clamping plate and the movable end clamping plate can rotate around the Z axis by changing the included angle between the adjusting plate 1112222 and the second bottom plate 1112221, so that the angle of the silicon rod 2 along the Z axis can be adjusted.

In one possible embodiment, the adjusting assembly further comprises a second adjusting motor 1112224, an adjusting top block 1112225 and an adjusting wedge 1112226, and the present invention is based on the second bottom plate 1112221, the adjusting plate 1112222 and the positioning block 1112223, and the angle of the silicon rod 2 along the Z-axis is adjusted by the cooperation of the adjusting top block and the adjusting wedge. As in this example, the second adjustment motor 1112224 is a stepper motor. The second bottom plate 1112221 has a mounting space reserved at a position corresponding to the adjusting top block (a position close to the right side), and the adjusting top block 1112225 can be freely accommodated in the mounting space and fixed on the adjusting plate by a fastener such as a screw. In the assembled state, the side (upper side) of the adjusting top block 1112225 close to the bottom plate has a portion (top of the adjusting top block) protruding out of the bottom plate.

As in this example, the upper side of the adjustment top piece is generally a curved structure that extends beyond the second bottom plate 1112221 near the middle. Wherein, the stepping motor is connected with the adjusting wedge 1112226 so as to push the adjusting wedge to move towards/away from the adjusting top block 1112225. As viewed in the advancing direction of the stepping motor, the distance between the downstream position of the side of the setting wedge close to the second bottom plate and the bottom plate is smaller than the distance between the upstream position of the side of the setting wedge close to the second bottom plate and the bottom plate (wedge in the setting wedge). For example, the side of the adjusting wedge 1112226 adjacent to the second bottom plate may be a bevel, a curve, or a combination thereof. In the orientation shown in the drawings, the underside of the setting wedge is, as in the present embodiment, a ramp surface that slopes downwardly from right to left.

In one possible embodiment, the stepper motor can drive the adjusting wedge 1112226 to move to the left by a T-shaped screw. Preferably, a guide rail adapted to the movement track of the adjusting wedge block may be disposed on the second bottom plate 1112221, so that the stepping motor drives the adjusting wedge block to move leftward along the guide rail through the T-shaped screw. According to the orientation shown in the figure, the leftward movement process of the adjusting wedge block can push the adjusting top block to move downwards, and the adjusting top block is fixed on the adjusting plate 1112222, so that the adjusting plate can rotate clockwise around the positioning block 1112223. Similarly, when the stepping motor rotates in the opposite direction, the adjusting wedge 1112226 moves to the right, the adjusting top block 1112225 moves upward, and the adjusting plate 1112222 rotates counterclockwise around the positioning block 1112223.

It can be understood that, on the premise of meeting the precision requirement, the bottom surface of the adjusting wedge block can be changed into a plane, and the advancing direction of the stepping motor is set to have a certain included angle with the second bottom plate.

Referring primarily to fig. 3 and 10, in one possible embodiment, the loading platform assembly 113 primarily includes a loading platform 1131, a loading platform 1132, and two sets of drive trains disposed therebetween. As in this example, the driving system mainly includes a loading and unloading motor 11331, a first ball screw 11332 and a first track block 11333, and the loading and unloading motor drives the first ball screw to move under the guidance of the first track block and generate displacement along the X-axis direction. The two sets of driving transmission mechanisms are respectively used for driving the feeding platform 1131 and the discharging platform 1132 to move along the X-axis direction, so that the position of the silicon rod in the X-axis direction is adjusted, and the feeding process and the discharging process are completed. For example, in this example, an organ shield 11334 is provided between the feeding platform and the discharging platform, so as to play a certain waterproof and dustproof role on the premise of ensuring that feeding and discharging can be realized.

Referring mainly to fig. 11, in a possible embodiment, the centering assembly 112 mainly includes a third bottom plate 1121, a centering motor (not shown) disposed on the third bottom plate 1121, a rack and pinion mechanism, a clamping plate group, and a first probe group, in this example, the centering motor is a servo motor, the rack and pinion mechanism includes a gear 11240 connected to a power output end of the servo motor, and upper and lower racks (respectively denoted as a first rack 11241 and a second rack 11242) engaged with the gear 11240, the clamping plate group includes a first clamping plate 11251 and a second clamping plate 11252 disposed opposite to each other and respectively connected to the first rack 11241 and the second rack 11242, and the first clamping plate 11251 and the second clamping plate 11252 are respectively configured with a first probe group, wherein the first probe group includes two probes (respectively denoted as a first probe 11261 and a second probe 62) and is mainly used for detecting an adjustment amount of the pose of the silicon rod 112.

In this example, a servo motor is provided on the back side (rear side in the drawing) of the third base plate at a substantially central position, a power output end of the servo motor extends out of the front side of the third base plate and is connected to a first gear 11240, a position on the left side of an upper first rack 11241 and a position on the right side of a lower second rack 11242 are engaged with the gear 11240, respectively, and a right end of the first rack 11241 and a left end of the second rack 11242 are connected to a left first jaw 11251 and a right second jaw 11252, respectively. In operation, the feeding assembly 111 conveys the silicon rod to the position below the centering assembly 112 and stops moving, and the (first and second) clamping plates respectively move from the outer side to the inner side and stop moving after clamping the silicon rod. In order to ensure the stability of the movement, the base plate is provided with a guide rail, and the (first and second) clamping plates are provided with guide grooves matched with the guide rail, so that the servo motor rotates to drive the gear to rotate, and the (first and second) racks drive the (first and second) clamping plates to move inwards on the guide rail by means of meshing with the gear.

The (first and second) clamping plates of the centering assembly 112 adjust the position of the silicon rod in the Y-axis direction, so that the (movable and fixed) chuck of the feeding slide unit 12 reaches a proper position in advance before clamping the silicon rod, and the length of the silicon rod can be measured. The first probe 11261 and the second probe 11262 of the two first probe sets determine the adjustment amount of the position and angle of the silicon rod by inspecting the rear side surface and the upper side surface of the silicon rod, respectively.

The structural configuration of the first/second splint and the arrangement of the first probe set on the respective splint will be described below by taking as an example the second splint 11252 corresponding to the right side. In one possible embodiment, the second jaw 11252 mainly comprises a jaw body 112521, a first mounting plate 112522 and a second mounting plate 112523, wherein the jaw body is used for holding the silicon rod 2, the first mounting plate is provided with a groove 1125221 which is engaged with the aforementioned guide rail on the third bottom plate, and the first probe 11261 is provided on the first mounting plate, the second mounting plate 112523 is substantially parallel to the first mounting plate and is provided at a position lower than and rearward of the first mounting plate, and the second probe 11262 is provided on the second mounting plate. The second mounting plate is attached to the first attachment plate by transverse attachment plates 112524 and support structure 112525 is provided at the intersection between second mounting plate 112523 and attachment plates 112524.

In this example, the first probe 11261 is required to calculate the outer dimension of the silicon rod 2 according to the magnitude of the amount of compression of the head portion of the first probe 11261 after the head portion thereof is protruded to touch the upper side surface of the silicon rod 2. After the completion of the inspection, it is necessary to keep the head thereof away from the upper side surface of the silicon rod 2. In order to realize the extension and contraction of the head part of the first probe 11261, for example, the first probe 11261 may be provided with a second cylinder 112611, and for example, the second cylinder 112611 may be mounted on the first mounting plate to push the head part of the first probe to extend out, so as to obtain the amount of compression of the head part of the first probe after contacting the surface of the silicon rod 2. The second probe 11262 is fixed to the second mounting plate 112523 without the need for an air cylinder. Specifically, the second probe 11262 may be compressed by moving the silicon rod 2 toward the second probe 11262 by the loading device 11, so as to obtain the magnitude of the compression amount. Namely: the detection of the rear side surface of the silicon rod by the second probe 11262 can be achieved along with the movement of the silicon rod in the X-axis direction.

Based on this, the operating principle of the centering assembly 112 is: after the silicon rod 2 is clamped by the pair of clamping plates of the centering assembly 112 and then released, the feeding platform 1131 continues to advance for a certain distance along the X-axis direction, the two second probes 11262 are compressed, so that the external dimension (width) of the silicon rod 2 along the X-axis direction is obtained, and the width difference of the two ends of the silicon rod 2 is obtained through the pair of second probes 11262. Then, the second cylinders 112611 corresponding to the two first probes extend out to drive the heads of the two first probes 11261 to contact with the upper surface of the silicon rod and compress for a certain distance, so that the external dimension (height) of the silicon rod along the Z-axis direction is obtained, and the height difference of the two ends of the silicon rod is obtained through the pair of first probes 11261. And calculating the required adjustment amount of the silicon rod through the detected width difference and height difference, adjusting the adjustment amount through the feeding device 11, and enabling the (fixed and movable) chuck to clamp the silicon rod 2 after the adjustment is finished so as to finish feeding.

Referring primarily to fig. 12, in one possible embodiment, feed slide assembly 12 generally includes a slide assembly, which generally includes a slide housing 1201 and a slide drive system, a stationary clamp 121, and a movable clamp 122. The slide table driving system mainly includes a slide table driving motor 1202, a second ball screw 1203, a screw base 1204, and a second rail slider 1205. The screw base 1204 and the second rail slide 1205 are both installed on the vertical frame 102 of the grinding machine 1, and the sliding table driving motor 1202 drives the ball screw to move under the guidance of the second rail slide 1205 and generate displacement along the X-axis direction, so that the sliding table assembly moves along the Y-axis direction. The slide table housing 1201 is mounted on the second rail slider 1205, and the stationary chuck 121 is fixed to the slide table housing 1201 to move along the Y axis in synchronization with the slide table assembly. The movable chuck 122 is mounted on the slide housing 1201 by a movable chuck driving system, which includes a movable chuck driving motor 1222, a third ball screw (not shown), and a third rail slider (not shown), as similar to the slide driving system. Thus, the movable chuck 122 can move along the Y-axis synchronously with the slide assembly via the slide drive motor 1202, or can move along the Y-axis relative to the slide assembly via the movable chuck drive system. In addition, the fixed chuck 121 and the movable chuck 122 are respectively provided with a fixed chuck rotating motor 1211 and a movable chuck rotating motor 1221 so as to rotate the silicon rod after the silicon rod is clamped by the (fixed, movable) chucks, for example, from one set of surfaces to be ground to another set of surfaces to be ground.

Referring mainly to fig. 1, 13-15, in one possible embodiment, the grinding device 13 mainly includes a pair of oppositely disposed rough grinding wheels 131 for rough grinding of the silicon rod 2, a pair of oppositely disposed finish grinding wheels 132 for finish grinding of the silicon rod 2, and a detection assembly 133. The finish grinding wheel 132 is located on the downstream side of the rough grinding wheel 133 in the silicon rod feeding direction so as to finish grinding after rough grinding of a certain grinding surface, and the detection unit 133 is disposed on the rough grinding wheel 131 and mainly used for detecting the position of the silicon rod 2 before the grinding operation is started.

In one possible embodiment, the rough grinding motor 1311 drives the fourth ball screw 1312 to drive the carriage 1314 carrying the rough grinding wheel 131 to move in the X-axis direction by the guide of the fourth rail block 1313. The detection unit 133 is mounted on a carriage 1314 for carrying the rough grinding wheel 131. For example, the finish grinding wheel 132 may be moved in a manner similar to that of the rough grinding wheel 131, and will not be described in detail.

In one possible embodiment, the inspection assembly 133 basically includes a base 1331, a base plate 1332, a slide plate 1333, a second probe set, a third air cylinder 1335 and a fifth rail slide 1336. Among them, the base plate 1332 is fixed on the base 1331, and the slide plate 1333 is disposed on the base plate 1332 through the fifth rail block 1336, for example, the second probe group includes three third probes 1334 arranged in a vertical direction and mounted on the slide plate 1333. During detection, the third cylinder 1335 extends to push the sliding plate 1333 to extend along the X-axis direction, and after detection is finished, the third cylinder 1335 retracts to pull the sliding plate 1333 to retract.

It can be seen that in the feeding device of the grinding machine, the position of the silicon rod along the Z axis is adjusted through the matching of the transmission plate, the connecting shaft and the lifting wheel in the lifting assembly. On the basis, by configuring an eccentric shaft for one of the lifting wheels, the silicon rod can be simultaneously adjusted in angle along the X axis by the lifting assembly. And the adjusting assembly is added to the clamping fixed end assembly of the clamping assembly, and the adjusting plate fixed to the fixed end clamping plate rotates around the positioning block based on the matching of the adjusting wedge block and the adjusting top block, so that the silicon rod is adjusted along the Z axis. In addition, the feeding platform component can adjust the position of the silicon rod along the X axis in the moving process of the feeding component clamping the silicon rod. Based on the scheme of the invention, the silicon rod can be adjusted in four dimensions through the feeding device, and the position adjustment along the Y axis through the centering component and the angle adjustment along the Y axis through the (fixed and movable) chuck are combined (namely, the silicon rod can be adjusted through the centering component under the condition that the deviation is the position along the Y axis, and can be adjusted through the rotation of the (fixed and movable) chuck under the condition that the deviation is the angle along the Y axis), so that the feeding precision of the grinding machine is ensured, and the feeding precision of the grinding machine is ensured.

It will be appreciated that in the present invention there will be an association between the loading assembly and the detection assembly, and therefore in alternative cases the aforementioned first probe set corresponding to the centering assembly may also be suitably reduced or omitted.

Based on the above structure, an embodiment of the method for controlling the lifting of the grinding machine according to the present invention will be described below with reference to fig. 16.

Referring to fig. 16, fig. 16 is a flow chart illustrating a method for controlling the elevation of a grinding machine according to an embodiment of the present invention. As shown in fig. 16, in a possible embodiment, the method for controlling the lifting of the grinding machine of the present invention mainly includes the following steps:

s1601, after the silicon rod is initially adjusted by the feeding device, the silicon rod is conveyed to a grinding area by the feeding sliding table device.

Specifically, after the feeding device 11 finishes adjusting the posture of the silicon rod 2, and the feeding slide unit 12 reaches a predetermined position according to the length of the silicon rod measured by the centering assembly 112, the movable chuck 122 moves along the Y-axis relative to the slide unit, so that the silicon rod is clamped by the fit between the fixed chuck 121 and the movable chuck 122. Thereafter, the feed slide table device 12 is moved along the Y axis, transporting the silicon rod 2 to the grinding area.

S1603, detecting the silicon rod by a detection component in the grinding device, and judging whether the state of the silicon rod meets the condition for grinding the silicon rod by the grinding component or not according to the detection result of the detection component; if not, the process proceeds to S1605, and if so, the process proceeds to S1607.

Before grinding, the silicon rod 2 is inspected by the inspection unit 133. In one possible embodiment, the detection module 133 detects the silicon rod 2 by: when the silicon rod 2 stops moving after reaching the first detection position, the third cylinder 1335 of the detection assembly 133 extends to push the third probe 1334 to move along the X-axis direction, and the position of the third probe 1334 is advanced with respect to the grinding wheel. Then, the rough grinding wheel 131 and the detection assembly 133 continue to move in the X-axis direction by the drive of the rough grinding motor 1311 until the third probe contacts the silicon rod and detection is completed (dotting and not grinding). Along with the movement of the silicon rod along the Y-axis direction, the third probe can detect the knife inlet position, the middle position along the length of the silicon rod and the knife outlet position of the silicon rod in sequence, then the chuck drives the silicon rod to rotate 90 degrees, and the detection process is repeated.

The determination result of determining, by the detection result of the detection unit 133, that the state of the silicon rod does not satisfy the condition for grinding by the grinding unit specifically includes: 1) If the maximum grinding size of the silicon rod is smaller than the standard size after grinding, the size of the rod is judged to be unqualified, the rod cannot be ground, and the silicon rod can be returned to the blanking platform (returned). 2) On the premise that the silicon rod is qualified, the position deviation and the angle deviation between the axis of the (fixed or movable) chuck and the axis of the silicon rod can be measured through the measurement of the second probe group on the three positions of the silicon, and if the deviation is greater than a specified value, the state of the silicon rod is considered to be not satisfied with the condition that the grinding component grinds the silicon rod. The cases where the condition is not satisfied mainly include two types: 21 Angle of the silicon rod along the Y-axis has a deviation, which can be adjusted, for example, by rotating the (stationary, movable) chuck; 22 Has a deviation in position/angle of the silicon rod along the (X, Z) axis, which is the case discussed in the present invention, and this case can be transferred to S1605.

S1605, the silicon rod is directly placed on the feeding platform of the feeding device again (without manual intervention), and the position state of the silicon rod along the vertical direction is secondarily adjusted through the lifting assembly of the feeding device.

Specifically, the silicon rod is directly placed on a feeding platform of the feeding device, and the pose of the silicon rod is secondarily adjusted on the feeding platform. As described in the foregoing, the position state of the silicon rod along the Z-axis may be adjusted by the lifting assembly. The principle of the regulation is as follows: when the electric cylinder 11112 serving as the driving means drives the driving plate serving as the driving means to laterally move from left to right, (the first and second) lifting wheels rotate counterclockwise along the corresponding inclined surfaces (downwardly inclined from left to right), and thus lift the support plate and the silicon rod disposed thereon, thereby adjusting the position state of the silicon rod in the vertical direction.

After the adjustment is completed, the process returns to S1603 to perform the re-detection until the detection is completed and the condition for grinding the workpiece by the grinding assembly is satisfied, and the process may proceed to S1607.

And S1607, grinding the silicon rod by the grinding component.

Specifically, the grinding assembly mainly includes a rough grinding wheel and a finish grinding wheel, and the grinding amount of the rough grinding wheel 131 can be calculated in the foregoing detection process, and the rough grinding wheel advances a certain distance toward the X axis according to the grinding amount to perform rough grinding. After the rough grinding is finished, the detection assembly repeats the previous detection process to calculate the grinding amount of the finish grinding wheel 132, and the finish grinding wheel advances a certain distance to the X axis similarly according to the grinding amount to carry out finish grinding.

S1609, finishing grinding and blanking.

After grinding is completed, the feeding sliding table device returns to the blanking area of the feeding device, and at the moment, the (fixed and movable) chuck loosens the silicon rod, so that the silicon rod falls to the blanking platform corresponding to the blanking area, and blanking is completed.

It can be seen that, in the lifting control method of the grinding machine, according to the detection result of the detection component, the feeding progress of the grinding machine is ensured by means of adjusting the position state of the silicon rod along the vertical direction by means of the lifting component in a manner of directly placing the lifting component on the feeding device for repeated adjustment. Obviously, the achievement of the feeding accuracy includes the achievement of several other dimensions (such as another dimension based on the lifting assembly, one dimension based on the driving transmission system, one dimension based on the centering assembly, and one dimension based on the (fixed, movable) chuck) in addition to the achievement of one dimension corresponding to the lifting control method, therefore, the control method of the present invention substantially belongs to one branch of the achievement of the feeding accuracy, namely: only the logic of this branch is illustrated, and those skilled in the art can implement the precision adjustment of the corresponding dimension by adopting the same or different structure as the foregoing structure according to the actual requirement.

It should be noted that, although the foregoing embodiments describe each step in a specific sequence, those skilled in the art may understand that, in order to achieve the effect of the present invention, different steps do not have to be executed in such a sequence, and may be executed simultaneously or in other sequences, and some steps may be added, replaced or omitted. Such as may be: the specific switching mode between the rough grinding and the fine grinding can be adjusted according to actual situations; on the premise that the silicon rod does not meet the grinding condition, the feeding device is returned to adjust only one part (four dimensions (main) and position adjustment along the Y axis corresponding to the centering component), and the rest part is realized by rotation between (fixed and movable) chucks in the feeding sliding table device, namely on the premise that the angle state along the Y axis needs to be adjusted and the states of the four dimensions need to be adjusted through the feeding device, the sequence can be set according to the actual condition; and the like.

It should be noted that, although the method for controlling the lifting of the grinding machine configured in the above-described specific manner is described as an example, those skilled in the art will appreciate that the present invention should not be limited thereto. In fact, the user can flexibly adjust the relevant steps and the parameters and other elements in the steps according to the situation such as the actual application scene, for example, when the adjustment of two dimensions is realized through the lifting assembly, the two adjustments can be performed simultaneously or sequentially, and the like.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is apparent to those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. A lift assembly, comprising:

a drive member;

the lifting wheel set comprises at least one lifting wheel, and the driving part is in driving connection with the lifting wheel;

the lifting wheel is operatively connected with the supporting plate;

the driving component can drive the lifting wheel to rotate so as to lift the supporting plate and the workpiece to be machined arranged on the supporting plate.

2. The lift assembly of claim 1, further comprising a restraining member, wherein the blade is displaced in a height direction by the restraining member and thereby lifts the blade and a workpiece disposed on the blade.

3. A lifting assembly according to claim 1 or 2, wherein the lifting wheel is fixedly connected to the blade in a rotatable manner,

the lifting assembly also comprises a transmission component, the transmission component is connected with the driving component on one hand and is butted with the lifting wheel on the other hand,

the transmission member has an inclined guide surface at a position close to the lifting wheel so that:

when the driving component drives the transmission component to move transversely, the lifting wheel rotates along the guide surface and lifts the supporting plate and the workpiece to be machined arranged on the supporting plate.

4. The lift assembly of claim 3, further comprising a connecting member, wherein the connecting member is fixedly connected or integrally formed to the transmission member and is connected to a power output of the driving member.

5. The lift assembly of claim 4, wherein the connecting member is a connecting block having an extended end connected to the power take off.

6. The lift assembly of claim 1, wherein the drive member is a power cylinder or a motor.

7. The lift assembly of claim 3 further comprising a base plate, said base plate and said pallet forming a chamber therebetween,

the transmission component is accommodated in the chamber and/or the driving component is arranged on the side of the bottom plate far away from the chamber.

8. The lift assembly of claim 2, further comprising a base plate defining a chamber between the base plate and the pallet, the restraint member being secured to the base plate.

9. The lift assembly of claim 7, further comprising a return spring disposed between the base plate and the platform.

10. The lift assembly of claim 2, wherein the restraining member is a link shaft, and wherein the support plate has an aperture therein, the link shaft being freely received in the aperture.

11. The lifting assembly of claim 1, wherein the blade is recessed away from the workpiece at a position near a middle of a side of the blade near the workpiece, as viewed along a length of the workpiece.

12. The lift assembly of claim 11, wherein the pallet comprises a pallet body and a support plate, the lift wheel is disposed on the pallet body, the work piece is disposed on the support plate,

the supporting plate is in a structure which is recessed towards the direction far away from the workpiece to be machined at the position, close to the middle, of one side close to the workpiece to be machined.

13. The lift assembly of claim 12, wherein the support plates comprise two spaced apart sets, as viewed along the length of the workpiece, each set comprising at least one support plate, the two sets defining a recess therebetween in a direction away from the workpiece; or

The supporting plate is of an integrally formed structure, and a structure which is sunken towards the direction far away from the workpiece to be machined is formed at the position, close to the middle, of the supporting plate.

14. The lifting assembly of claim 1 or 2, wherein the lifting wheel is a cam, and the driving member is in direct driving connection with the cam or in driving connection with the cam through a transmission mechanism, so that the driving member drives the cam to rotate and thereby lift the pallet and the workpiece to be machined arranged on the pallet.

15. A grinding machine comprising a lift assembly as claimed in any one of claims 1 to 14.

16. The grinding machine as claimed in claim 15, characterized in that the grinding machine is a silicon rod machining grinding machine.

17. The lifting control method of the grinding machine is characterized in that the grinding machine comprises a feeding device and a grinding device, the feeding device comprises a lifting assembly, the grinding device comprises a grinding assembly and a detection assembly,

the lifting assembly comprises a driving component, a lifting wheel set and a supporting plate, the lifting wheel set comprises at least one lifting wheel,

the control method comprises the following steps:

judging whether the state of the workpiece to be machined meets the condition for grinding the workpiece by the grinding assembly or not according to the detection result of the detection assembly;

if not, selectively placing the workpiece to be processed on the feeding device, and operating the driving part, so as to:

the lifting wheel is driven by the driving component to rotate so as to lift the supporting plate and the workpiece to be machined arranged on the supporting plate, and then the position state of the workpiece to be machined along the vertical direction is adjusted.

18. The lift control method for a grinding machine according to claim 17, wherein the lift assembly further includes a restraining member, and the pallet is displaced in the height direction by the restraining member, and thereby lifts the pallet and the workpiece to be machined provided on the pallet.

19. The method of lift control for a grinding machine of claim 17 or 18 wherein the lift assembly further includes a transmission member having a sloped guide surface adjacent the lift wheel,

correspondingly, the step of driving the lifting wheel to rotate through the driving part so as to lift the supporting plate and the to-be-processed workpiece arranged on the supporting plate, and further adjusting the position state of the to-be-processed workpiece along the vertical direction includes:

when the driving part drives the transmission part to move transversely, the lifting wheel rotates along the guide surface, and therefore the supporting plate and the workpiece to be machined arranged on the supporting plate are lifted, and the position state of the workpiece to be machined in the vertical direction is adjusted.

20. A method of controlling the elevation of a grinding machine as claimed in claim 17 or 18, in which the lifting wheel is a cam,

the driving part drives the cam to rotate and accordingly lifts the supporting plate and the workpiece to be machined arranged on the supporting plate, and the position state of the workpiece to be machined along the vertical direction is adjusted.

21. A computer readable storage medium comprising a memory adapted to store a plurality of program codes, wherein the program codes are adapted to be loaded and executed by a processor to perform a method of lift control for a grinding machine as claimed in any one of claims 17 to 20.

22. A computer apparatus comprising a memory and a processor, the memory adapted to store a plurality of program codes, wherein the program codes are adapted to be loaded and executed by the processor to perform the method of lift control for a grinding machine as claimed in any one of claims 17 to 20.

23. A lift control system for a grinding machine, the control system including a control module configured to perform the method of any one of claims 17 to 20.