CN220362360U - Adjustable lifting assembly and grinding machine comprising same - Google Patents

Abstract

The utility model relates to the technical field of feeding adjustment in equipment such as grinding machines and the like, and particularly provides an adjustable lifting assembly and a grinding machine comprising the same, wherein the lifting assembly comprises: a driving part; the lifting wheel set comprises a plurality of lifting wheels, and the driving component is in driving connection with the lifting wheels; the support plate assembly can be carried by a workpiece to be machined, and the lifting wheel is in operative connection with the support plate assembly; the driving component can drive the lifting wheels to rotate so as to lift the supporting plate component and a workpiece to be machined arranged on the supporting plate component; and an adjusting part comprising a jacking mechanism capable of locally lifting the pallet assembly so as to enable different parts of the pallet assembly to be at different heights by means of the at least one jacking mechanism. By means of the arrangement, different local lifting of the workpiece to be processed is expected to be achieved at different heights, and therefore feeding accuracy of the workpiece to be processed is guaranteed.

Description

Adjustable lifting assembly and grinding machine comprising same

Technical Field

The utility model relates to the technical field of feeding adjustment in equipment such as grinding machines and the like, and particularly provides an adjustable lifting assembly and a grinding machine comprising the same.

Background

A grinding machine is a device for grinding a hard and brittle material. Such as grinding machines, typically include a loading table assembly, a feed assembly, and a grinding assembly. For example, the piece made of hard and brittle material is used as a silicon rod, for example, the silicon rod after being opened is firstly fixed to the feeding table assembly, after a certain initial adjustment is carried out on the position and the posture of the silicon rod, the silicon rod is sent between two chucks of the feeding assembly, for example, the two chucks can be both movable chucks or one chuck is a movable chuck and one chuck is a fixed chuck. The silicon rod is conveyed to the grinding assembly through the axial movement of the silicon rod so as to perform grinding processing including rough grinding and fine grinding on the first group of surfaces to be ground. Then, the silicon rod is rotated to a second group of surfaces to be ground, and on the basis of this, grinding processing including rough grinding and finish grinding is performed on the second group of surfaces to be ground. And repeating the steps until all the surfaces to be ground of the silicon rod are ground according to the set grinding standard.

Still take the piece of hard and brittle material as the silicon rod for example, because the specification of silicon rod is different and the overall dimension of the silicon rod of same specification also differs, therefore when putting the silicon rod on the loading platform, there is certain positional deviation usually between the axis of silicon rod and the axis of two chucks. In addition, because the surface of the silicon rod before grinding is uneven, 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 influence the coaxiality of the two axes, and the coaxiality between the two axes is represented as the feeding precision of the silicon rod on the grinding machine. The failure of any link of the position deviation and the angle deviation can affect the feeding precision of the silicon rod, and the reduction of the feeding precision can be generally represented by the increase of grinding quantity of the silicon rod and the improvement of silicon loss with different degrees, thereby reducing the processing efficiency of a grinding machine and reducing the surface quality of the silicon rod.

Disclosure of Invention

The utility model aims to at least partially solve the technical problems, and specifically, any link of the position deviation and the angle deviation is restrained or eliminated, so that the feeding precision of the silicon rod is improved on the basis, and the processing efficiency of a grinding machine and the surface quality of the silicon rod are further improved. More specifically, the utility model mainly adjusts the height of the difference between parts along the height direction in the position deviation, thereby improving the precision of the feeding alignment of the silicon rod at least to a certain extent, improving the grinding efficiency, and further obtaining the effects of reducing the grinding loss and the grinding allowance of the silicon rod.

In a first aspect, the present utility model provides an adjustable lift assembly comprising: a driving part; the lifting wheel set comprises a plurality of lifting wheels, and the driving component is in driving connection with the lifting wheels; the to-be-machined piece can be carried on the supporting plate assembly, and the lifting wheel is in operative connection with the supporting plate assembly; the driving component can drive the lifting wheels to rotate so as to lift the supporting plate assembly and a workpiece to be machined arranged on the supporting plate assembly; the lift assembly further includes: an adjustment section comprising at least one lifting mechanism capable of lifting a part of the pallet assembly so that different parts of the pallet assembly are at different heights by means of the at least one lifting mechanism.

By this construction, a possible construction of the lifting assembly is given. Such as silicon rods to be ground.

Compared with the mode of manually participating in directly blanking (bar withdrawing) the to-be-machined part, the utility model directly places the to-be-machined part in the feeding device for readjustment, thereby improving the adjustment efficiency. Compared with the mode of adjusting through the fixed chuck and the movable chuck in the feeding direction, the feeding precision adjustment of four dimensions can be realized through different parts because the parts involved in the structure of the feeding device are relatively more. In addition, the feeding device is structurally separated from the movable clamping head and the fixed clamping head, so that adjustment of corresponding dimensions is easier to achieve through the mode of adding components and the like.

It should be noted that the operation connection in the "drive member and the lifting wheel drive connection" should be understood as: when the driving member performs a driving operation, the lifting wheel performs an operation associated with the driving operation, that is, the lifting wheel performs an operation such as lifting in response to the driving of the driving member. 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 operation connection in the "operation connection of the lifting wheel and the pallet assembly" should be understood as: when one of the lifting wheel and the pallet assembly is subjected to an action, the other is concomitantly subjected to an action associated with the action, i.e. the two have an association at the operational level, such as a direct association or an indirect association between the two.

It will be appreciated that the person skilled in the art can determine the form, number, relative position between the individual lifting wheels (in case the lifting wheels comprise a plurality) and their relative position with the pallet, of the lifting wheels comprised in the lifting wheel set, according to the actual need. The method can be as follows: the lifting wheels comprise two groups, and the setting positions of the two groups of lifting wheels are close to the two ends of the silicon rod; the lifting wheels comprise four groups, respectively denoted as A, B, C, D, wherein A and C are a group, the silicon rods arranged on the supporting plate can be lifted in a first form by means of the lifting wheels (A, C), B and D are a group, and the silicon rods arranged on the supporting plate can be lifted in a second form by means of the lifting wheels (B, D); etc.

It is understood that the specific form of the displacement of the lifting wheel set driven by the driving component and the corresponding relation between the driving component and the lifting wheel set can be determined by those skilled in the art according to actual needs. For example, the first driving part can enable the lifting wheel set to displace in a direct driving or indirect driving mode. The form of indirect drive may be: the power output end of the driving part is directly connected with one or a plurality of intermediate parts, and when the state of the driving part driving the intermediate parts is changed, the lifting wheel can generate displacement along the height direction based on the state change. And the corresponding relation between the driving parts and the lifting wheel sets can be one-to-one correspondence, one driving part corresponds to a plurality of lifting wheels, one lifting wheel corresponds to a plurality of driving parts, and the like. Illustratively, the lift wheel includes two drive members that drive the two lift wheels, respectively, in a relatively independent manner.

It will be appreciated that the structural form of the lifting wheel, the direction of displacement of the lifting wheel under the drive of the driving member, the amount of displacement, etc. can be determined by those skilled in the art according to actual needs. As for the direction therein, the displacement may be a displacement including only the height direction, or may be a displacement including, but not limited to, other directions such as the horizontal direction. As for the displacement amount thereof, a person skilled in the art can set how the driving member makes the lifting wheel to make a desired displacement amount according to a driving manner in which the driving member drives the lifting wheel to make a displacement, a displacement amount required for a workpiece to be machined, and the like.

An alternative embodiment of the lifting wheel is a cam, which is associated with the lifting of the workpiece to be machined in such a way that: 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 accordingly lifts the supporting plate assembly and the workpiece to be machined carried on the supporting plate assembly. Such as a cam, disposed below the pallet assembly and in contact with the bottom surface of the pallet assembly. 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.

It is understood that a person skilled in the art can determine the structural form, the number, the correspondence between the structural form and the number of the jacking mechanisms and different parts of the pallet assembly, the specific way in which the structural form and the number of the jacking mechanisms enable the pallet assembly to be lifted, and the like according to actual requirements. The method can be as follows: two jacking mechanisms are arranged for the supporting plate assembly (such as at positions corresponding to two ends of the supporting plate), and the supporting plate assembly is jacked to different degrees through the two jacking mechanisms; the supporting plate component is provided with a jacking mechanism, and the lifting/descending of the corresponding part of the supporting plate component is realized through the jacking mechanism, so that the height difference is generated between the part and other parts; the position of the supporting plate component close to the middle part and the position close to the two end parts are respectively provided with a jacking mechanism, and the pose (position and pose) of the supporting plate component is adjusted through the cooperation of the three jacking mechanisms. The lifting mechanism can be a power cylinder (hydraulic cylinder, air cylinder, electric cylinder and the like), a screw motor, a linear module capable of providing linear power and the like.

It will be appreciated that the structural form of the pallet assembly and the specific manner of interfacing between the jacking mechanism and the pallet assembly may be determined by those skilled in the art based on actual requirements. Such as the jacking mechanism driving the whole pallet assembly to move or driving one part of the pallet assembly to move relative to the other part, etc.

For the adjustable lift assembly described above, in one possible embodiment, the lift assembly includes a body portion, and the pallet assembly includes: a first pallet provided to the main body portion; and a second pallet drivingly connected to the jacking mechanism so as to: and driving the first supporting plate to move relative to the second supporting plate through the jacking mechanism.

By this construction, a possible construction of the pallet assembly is given.

It will be appreciated that the structural form of the first/second pallet, the relative position between the two, the specific manner in which the first/second pallet forms the lifting assembly, etc. may be determined by those skilled in the art based on actual requirements. If the main body part can be a structure such as a shell, a box body, a plate and the like, wherein the shell, the box body, the plate and the like are provided with the first driving component, the lifting wheel group and the like, the first supporting plate can be arranged on the main body part in an integrated forming or fixed connection mode, and the second supporting plate and the lifting mechanism can have a connection relation or realize driving connection corresponding to lifting motion in a direct abutting mode and the like.

For the adjustable lifting assembly described above, in one possible embodiment, the second pallet is pivotally arranged on the one hand to the main body part and on the other hand in driving connection with the lifting mechanism.

By this construction, a possible construction of the second pallet forming the lifting assembly is given.

It will be appreciated that the implementation of the pivot connection, the relative positions corresponding to the pivot connection and the jacking drive connection, etc. may be determined by those skilled in the art according to actual requirements. Illustratively, the drive connection is lifted at a position near the middle and at a position near the two ends, respectively. The pivotal connection between the second pallet and the body portion may be achieved by any reasonable arrangement of pins, joints, shafts/bushings/the like.

For the adjustable lifting assembly described above, in one possible embodiment, the second pallet is provided with a support member pivotally arranged to the body portion.

By such a construction, a specific implementation is provided in which the second support plate is pivotally arranged to the main body portion, e.g. the support member may be integrally formed with or fixedly connected to the second support plate, the support portion may be of a plate-like structure, a bar-like structure, a block-like structure or the like.

For the adjustable lifting assembly described above, in one possible embodiment, the pallet assembly has a projection at a position corresponding to the jacking mechanism to which the power take-off of the jacking mechanism can abut.

By such a construction, a specific implementation of the drive connection between the pallet assembly and the climbing mechanism is given. The structural form, number and specific abutting mode of the extending ends and the power output ends can be determined according to actual requirements by a person skilled in the art.

For the adjustable lift assembly described above, in one possible embodiment, the lift assembly further comprises: and the restraint component is used for generating displacement along the height direction under the cooperation of the restraint component, and accordingly lifting the support plate component and a workpiece to be machined carried on the support plate component.

By means of the structure, the supporting plate assembly can be lifted according to the set vertical direction under the limiting and/or guiding effects of the constraint component, and the lifting reliability is guaranteed.

It is understood that the structural form, number and relationship between the guiding and limiting components and the pallet assembly can be determined by those skilled in the art according to actual requirements. The method can be as follows: the guiding and limiting part comprises a vertical baffle plate or a vertical baffle rib which is formed by surrounding/partially surrounding the supporting plate or a guide rail which is matched with the outer edge of the supporting plate, and the like.

For the above-mentioned adjustable lifting assembly, in one possible embodiment, the lifting wheel is fixedly connected to the pallet assembly 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 to the lifting wheel, the transmission member having an inclined guiding surface in a position close to the lifting wheel for: when the driving part drives the transmission part to transversely move, the lifting wheel rotates along the guide surface and accordingly lifts the supporting plate assembly and a workpiece to be machined arranged on the supporting plate assembly.

By means of this construction, a possible mounting of the lifting wheel and a possible realization of the displacement of the lifting wheel driven by the drive member are given.

It should be noted that rotation in the sense that the lifting wheel is fixedly connected to the pallet in a rotatable manner should be understood as a rotation property of the lifting wheel, and that the fixed connection should be understood as a connection relationship between the lifting wheel and the pallet. Illustratively, if the lift wheel is configured with a shaft that is fixedly connected to the pallet, the lift wheel may spin about the shaft. Illustratively, the pallet assembly is generally a housing structure to which the work piece to be machined is secured, and the lift wheel is mounted to a side of the housing structure by an axle.

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

The inclined guide surface is understood here as: the downstream side of the guide surface should have a lower height than the upstream side of the guide surface, as seen in the traversing direction of the transmission member. The guiding surface having such features may be a ramp, a (concave, convex) curved surface, a combination thereof, or the like. Taking the guide surface as an inclined plane and the lifting direction as a vertical direction as an example, the transmission part transversely moves along with the extension of the power output end of the driving part (such as a power cylinder and the like), and due to the arrangement of the inclined plane, the lifting wheel generates vertical upward displacement along with autorotation and rolling on the inclined plane, so that the supporting plate assembly can be driven to generate displacement along the vertical direction, and the lifting of a 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 according to the prior practical requirements by a person skilled in the art.

For the above-mentioned adjustable lifting assembly, in a possible embodiment, the lifting assembly further comprises a connecting part, which is arranged on the one hand in the transmission part by means of a fixed connection or an integrated formation, and on the other hand is connected with the power take-off of the drive part.

By such a construction a specific form of the connection between the drive member and the transmission member is given.

It will be appreciated that the configuration of the connecting members, their specific connection to the transmission member/power take-off, their specific location of connection, etc. may be determined by those skilled in the art based on actual requirements. The connecting part is fixedly connected with the transmission part by means of a fastener.

For the adjustable lifting assembly described above, in one possible embodiment, the connection member is a connection block having a protruding end connected to the power take-off end.

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

For the adjustable lifting assembly described above, in one possible embodiment, the drive member and/or the jacking mechanism comprises a power cylinder or a motor.

By such a construction, a possible construction form of the driving member/lifting mechanism is given,

for example, the driving component may be an electric cylinder, an air cylinder, a hydraulic cylinder, or the like. At this time, the transmission part is directly connected with the power output end (piston) of the power cylinder.

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

For the adjustable lifting assembly described above, in one possible embodiment, the lifting assembly further comprises a base plate, a chamber being formed between the base plate and the pallet assembly, the lifting wheel and the transmission member being accommodated in the chamber; and/or the drive member is arranged at the side of the bottom plate away from the chamber.

By means of this construction, a specific construction of the transmission element and the drive element forming the lifting assembly is given.

For the adjustable lifting assembly described above, in one possible embodiment, the lifting assembly further comprises a base plate, a chamber being formed between the base plate and the pallet, the restraining member being secured to the base plate.

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

In particular, by fixing the restraining member to the floor, the integrity of the lift assembly or compactness between the various components of the lift assembly is ensured.

For the adjustable lifting assembly described above, in one possible embodiment, the lifting assembly further comprises a return spring disposed between the base plate and the pallet assembly.

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

Specifically, through the setting of reset spring, guaranteed the reliable return of layer board subassembly. The return spring is in a stretched state when the power output end of the power cylinder extends and the supporting plate assembly is lifted. When the power output end of the power cylinder is retracted, the supporting plate component descends under the combined action of the pulling force of the return spring and the gravity of the supporting plate component, so that the reliable return of the supporting plate component is realized.

It will be appreciated that those skilled in the art may determine the specifications (e.g., spring rate, etc.) of the return springs, the number of settings, the location of the settings, the specific manner of connection to the base plate, pallet assembly, etc., according to actual needs. Illustratively, the return spring includes a plurality of springs circumferentially distributed about the connecting shaft. In addition, a return spring may be provided outside the connecting shaft.

For the adjustable lifting assembly described above, in one possible embodiment, the restraining member is a connecting shaft, and the pallet assembly (e.g., the first pallet) is provided with a hole, and the connecting shaft is freely received in the hole.

With this construction, a specific way of connecting the restriction device is provided.

Specifically, through the setting of connecting axle, the motion of the relative bottom plate of layer board subassembly along other directions in the horizontal plane has been restricted, the reliability of lifting has been guaranteed. The integrity of the lifting assembly, such as the bottom end of the connecting shaft, can then be fixedly arranged on the bottom plate.

It is understood that the number of the connecting shafts, the specific connection manner between the connecting shafts and the bottom plate, and the like can be determined by those skilled in the art according to practical requirements. Illustratively, the connecting shaft includes a single piece positioned approximately in the middle of the pallet assembly of the lift assembly.

For the above-mentioned adjustable lifting assembly, in a possible embodiment, the pallet assembly is recessed away from the workpiece to be machined, at least at a position near the middle, on a side near the workpiece to be machined, as seen in the length direction of the workpiece to be machined.

With this configuration, the workpiece can be more reliably set on the pallet assembly. The specific form of the recess can be determined as desired by the person skilled in the art in order to more stably carry the work piece to be worked.

For the adjustable lifting assembly, in one possible implementation manner, the supporting plate assembly comprises two groups of supporting plates which are arranged separately, and each group of supporting plates comprises at least one supporting plate, and a structure recessed away from the workpiece is formed between the two groups of supporting plates; or the supporting plate is of an integrally formed structure, and a structure recessed in a direction away from the workpiece to be processed is formed at a position close to the middle of the supporting plate.

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

In a second aspect, the utility model provides a grinding machine comprising an adjustable lifting assembly as defined in any one of the preceding claims.

It will be appreciated that the grinding machine has all of the technical effects of the adjustable lifting assembly described in any of the preceding claims and will not be described in detail herein.

In one possible embodiment, the grinding machine comprises a loading device comprising the adjustable lifting assembly.

In one possible embodiment, the loading device comprises a loading platform, and the adjustable lifting assembly is arranged on the loading platform.

In one possible embodiment, the grinding machine is a grinding machine for machining silicon rods.

Drawings

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings in which a workpiece to be machined is a silicon rod to be ground (hereinafter referred to simply as a silicon rod):

FIG. 1 shows a schematic view of the structure of a grinding machine according to an embodiment of the utility model;

fig. 2 shows a schematic structural diagram of a feeding device of a grinding machine according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing the construction of a lifting assembly in a loading table assembly of a grinding machine according to one embodiment of the utility model;

FIG. 4 is a schematic cross-sectional view of a lift assembly in a loading table assembly of a grinding machine showing the internal structure of the lift assembly, in accordance with one embodiment of the utility model;

FIG. 5 is a schematic view showing a structure of a clamping movable end assembly in a clamping assembly of a loading table assembly of a grinding machine according to an embodiment of the utility model;

FIG. 6 is a schematic view showing a structure of a clamping and fixing end assembly in a clamping assembly of a loading table assembly of a grinding machine according to an embodiment of the utility model;

FIG. 7 is a schematic view showing a structure of a clamping and fixing end assembly in a clamping assembly of a loading table assembly of a grinding machine according to another embodiment of the utility model;

fig. 8 is a schematic structural view of an upper and lower feed support assembly in a feeding device of a grinding machine according to an embodiment of the present utility model;

FIG. 9 shows a schematic structural view of a centering assembly of a grinding machine in accordance with one embodiment of the utility model;

FIG. 10 is a schematic view showing a structure of a feed slide apparatus of a grinding machine according to an embodiment of the utility model;

FIG. 11 is a schematic view showing the structure of a rough grinding wheel in a grinding apparatus of a grinding machine according to an embodiment of the utility model;

FIG. 12 is a schematic view showing the structure of a detecting unit in a grinding apparatus of a grinding machine according to an embodiment of the present utility model; and

Fig. 13 is a schematic view showing a detection state of a detection component in a grinding apparatus of a grinding machine according to an embodiment of the present utility model.

List of reference numerals:

grinding machine 1, base 101, vertical frame 102, feeding device 11, feeding table assembly 111, lifting assembly 1111, lifting base 11111, electric cylinder 11112, drive plate 11113, inclined plane 111131, first lifting wheel 111141, second lifting wheel 111142, first support plate 111151, second support plate 111152, extension 1111521, support plate 111153, lifting mechanism 111154, connection block 11116, connection shaft 1117, return spring 1118, first axle 111191, first seal plate 1111911, support portion 1111912, pin 1111913, second axle 111192, second seal plate 1118, clamp assembly 1112, clamp movable end assembly 11121, first cylinder 111211, X-axis guide slider 111212, Y-axis guide slider 111213, movable end return spring 111214, movable clamp plate 111215, clamp fixed end assembly 11122, clamp fixed base 111215, fixed clamp plate 111215, clamp fixed adjustment drive member 111215, first gear 111215, second gear 111215, fixed support plate 111215, and fixed support plate,

Centering assembly 112, centering bottom plate 1121, gear 11240, first rack 11241, second rack 11242, first clamp plate 11251, second clamp plate 11252, clamp plate body 112521, first mounting plate 112522, slot 1125221, second mounting plate 112523, connecting plate 112524, support structure 112525, first probe 11261, second cylinder 112611, second probe 11262, loading and unloading feed support assembly 113, loading platform 1131, unloading platform 1132, loading and unloading motor 11331, first ball screw 11332, first rail slider 11333, organ shield 11334, feed slide apparatus 12, slide housing 1201, slide drive motor 1202, second ball screw 1203, screw mount 1204, second rail slider 1205, fixed clamp 121, fixed clamp rotary motor 1211, movable clamp 122, movable clamp rotary motor 1221, movable clamp drive motor 1222, grinding apparatus 13, rough grinding wheel 131, rough grinding motor 1311, fourth ball mill 1312, fourth rail slider 1313, bracket 133132, detection assembly 1331, base 1332, third probe 1333, third grinding wheel 1336, and third probe 1336.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model. For example, although the embodiment is described with reference to a structure including four-dimensional adjustment, it is not intended to limit the scope of the present utility model, and a person skilled in the art may flexibly change the structure without departing from the principles of the present utility model, for example, one or more dimensions may be removed (for example, in some cases, there is no case that the precision of one or more dimensions does not reach the standard), or the structure of the adjustment of the feeding precision of the feeding table assembly corresponding to one or more dimensions may be replaced with other structural forms.

It should be noted that, in the description of the present utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate directions or positional relationships 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 apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, 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 utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, it will be appreciated by those skilled in the art that the present utility model may be practiced without some of these specific details. In some instances, the principles of grinding machines, etc., which are well known to those skilled in the art, have not been described in detail in order to highlight the gist of the present utility model.

For ease of description, the present utility model 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 the above, the precision adjustment realized by the feeding table assembly mainly comprises four dimensions: the silicon rod is lifted by a certain distance along the Z axis (hereinafter referred to as positional adjustment along the Z axis), moved by a certain distance along the X axis (hereinafter referred to as positional adjustment along the X axis), rotated by a certain angle about the Z axis direction (hereinafter referred to as angular adjustment along the Z axis), and rotated by a certain angle about the X axis direction (hereinafter referred to as angular 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 be moved a certain distance in the front-back/left-right/vertical direction, and the angle along the X/Y/Z axis is adjusted to be rotated a certain distance in the front-back/left-right/vertical direction.

The present utility model is described below with reference to some or all of fig. 1 to 13.

Referring mainly to fig. 1, in one possible embodiment, the main body of the grinding machine 1 mainly includes a base 101 and a bottom vertical frame 102, where the base 101 has a certain level adjustment function, so as to provide a mounting surface with a higher level for the structures such as the feeding device 11 and the grinding device 13 of the grinding machine 1. Wherein a guide rail is provided at the top of the vertical frame 102, and the feed slide apparatus 12 is mounted on the guide rail. The grinding machine is mainly used for grinding the silicon rod 2 which is used as a workpiece to be machined after being cut to a set specification. Specifically, in an ideal state, the silicon rod 2 after being opened is generally rectangular parallelepiped with equal width and height. In practice, however, the surface of the silicon rod 2 after the prescription is not flat, as it is generally expressed as: the middle part of the silicon rod is protruded compared with the two end parts, the dimension of the outlet edge of the silicon rod is larger than the dimension of the inlet edge (the side length of the square of the cutting end face of the diamond wire is larger than the side length of the square of the cutting end face of the diamond wire). Therefore, it is necessary to grind the silicon rod after the square-cut to an ideal rectangular parallelepiped of standard specification by a grinder.

Referring mainly to fig. 2, in one possible embodiment, the feeding device 11 is mainly used to clamp the silicon rod 2 after adjusting the silicon rod to a proper position and angle, and the fixed chuck 121 and the movable chuck 122 of the feeding slide device 12. In order to reduce the grinding amount, reduce silicon loss and improve grinding efficiency, the grinding machine 1 needs a high feeding precision. In the case that the feeding precision meets the standard, the ideal axis of the silicon rod 2 and the axis between the movable and fixed chucks 121 should have higher coaxiality. The coaxiality of the feeding device is enabled to reach an ideal level mainly through adjustment of the feeding device.

In one possible embodiment, the loading device 11 mainly includes a loading table assembly 111, a centering assembly 112, and an upper and lower feed support assembly 113. The loading table assembly 111 and the loading/unloading feeding support assembly 113 need to adjust the position and the posture (hereinafter referred to as the pose) of the silicon rod 2 in the aforementioned four dimensions, and the centering assembly 112 is used for mainly determining the adjustment amount of the loading table assembly 111 to the pose of the silicon rod 2. Specifically, the loading table assembly 111 generally includes a lift assembly 1111 and a clamp assembly 1112. Based on the detection result of the centering assembly 112, the lifting assembly 1111 is mainly used for adjusting the position of the silicon rod 2 along the Z axis and adjusting the angle of the silicon rod 2 along the X axis (rotation in the vertical plane), and the clamping assembly 1112 is mainly used for adjusting the angle of the silicon rod 2 along the Z axis (rotation in the horizontal plane). The feeding and discharging support assembly 113 is mainly used for adjusting the position of the silicon rod along the X axis in the process of moving the feeding table assembly 111 clamping the silicon rod 2 to the centering assembly 112. Based on this, after the loading table assembly 111 completes the adjustment of the silicon rod in four dimensions, the (fixed and movable) chucks are made to clamp the silicon rod with the pose reaching the standard, and the loading process is completed.

Referring primarily to fig. 3-4, in one possible embodiment, the lifting assembly 1111 basically includes a lifting base plate 11111, an electric cylinder 11112 (a driving member), a driving plate 11113 as a driving member, a lifting wheel set including a first lifting wheel 111141 (e.g., the first lifting wheel includes two wheel units disposed on a first axle 111191) and a second lifting wheel 111142, and a pallet assembly, the driving plate 11113 having a slope 111131 sloping downward from left to right as a guiding surface at positions corresponding to the first lifting wheel 111141 and the second lifting wheel 111142, respectively.

In this example, the power take off of the electric cylinder 11112 is connected to the drive plate 11113 in the following manner: the lifting base plate 11111 is provided with a connecting block 11116 as a connecting component, the connecting block 11116 is fixedly connected with the transmission plate 11113 above the lifting base plate 11111 by means of fasteners such as screws, on one hand, an extending end is arranged below the connecting block 11116, correspondingly, a ring groove matched with the extending end is arranged on the power output end of the electric cylinder 11112, and the connecting block 11116 is connected with the electric cylinder 11112 by matching the extending end with the ring 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 assembly roll from right to left along the inclined plane 111131, i.e., roll from low to high, and with this rolling, the pallet is driven to displace in the vertical direction. In this way, the silicon rod disposed on the pallet assembly achieves positional adjustment along the Z-axis. Similarly, the power take off of the electric cylinder 11112 is retracted and the drive plate 11113 is moved to the left, the lift wheel rolls from high to low and the pallet assembly is lowered. For example, for better guiding the movement of the drive plate 11113, a rail can be provided on the lifting base plate 11111, which rail is adapted to the movement path of the drive plate 11113.

In this example, the body portion of the lift assembly includes a generally open-bottomed enclosure structure with the pallet assembly disposed on top of the enclosure structure and the lift wheels disposed on the sides of the enclosure structure. Illustratively, the two lift wheels are mounted to the body portion in the following manner: first lift wheel 111141 and second lift wheel 111142 are mounted to sides of the housing structure by first axle 111191 and second axle 111192, respectively. Upon extension/retraction of the electrical cylinder 11112, the pallet assembly containing the first pallet is raised/reset by both the rotation of the lift wheels and its rolling on the ramp 111131. Based on this, the function of the lift assembly 1111 may be improved, in particular, the lift assembly may have a function of adjusting the position adjustment of the silicon rod along the Z-axis while also having a function of adjusting the angle adjustment of the silicon rod along the X-axis.

On the basis, the lifting assembly has the function of adjusting the angle adjustment of the silicon rod along the X axis in addition to the function of adjusting the position of the silicon rod along the Z axis. In the present utility model, the function of the lift assembly 1111 is improved.

In one possible embodiment, the pallet assembly includes a first pallet 111151 disposed on top of the body portion and a second pallet 111152 disposed over the second pallet, the second pallet 111152 (left end as in this example) having an extension 1111521 to which the power output end of the climbing mechanism 111154 can be drivingly connected such that the climbing mechanism provides a vertically upward driving force to drive the left portion of the first pallet relative to the second pallet. In this example, the jacking mechanism is a screw motor (the motor is provided with a screw nut mechanism and integrally provided with both).

In one possible embodiment, the right-hand portion of the second pallet is rotatable about the body portion. In this example, the support portion 1111912 is provided for the side portion of the second pallet, the pin 1111913 is provided on the support portion, and by fixing the pin to the main body portion and rotating about the pin by the support portion, the position of the second pallet corresponding to the pin can be made to be the pivoting side of the second pallet, the aforementioned position corresponding to the jack mechanism being the free side, on which the pivoting movement of the second pallet is achieved.

In actual products, for example, a removable first seal plate 1111911 and a removable second seal plate 1111921 may be provided at positions corresponding to the first lift wheel 111141 and the second lift wheel 111142, respectively. The pivoting mechanism described above may be mounted to the closure plates on either side by removing the closure plates on the respective sides. Of course, the sealing plate may be removed and the pin may be directly mounted to the housing structure.

Therefore, the silicon rod on the supporting plate can be lifted to a certain height along the vertical direction through the cooperation of the electric cylinder, the transmission plate and the lifting wheels (first and second). Through the cooperation of climbing mechanism and round pin axle, can make the position of the different local along the direction of height of silicon rod that carries on the second layer board different. In this way, the position adjustment of the silicon rod along the Z axis and the angle adjustment along the X axis can be realized through the lifting assembly.

As described above, one of the manifestations of the surface unevenness of the silicon rod 2 after the opening is: the middle portion of the silicon rod is convex compared with the two end portions. In order to be able to place the silicon rod having this property more smoothly on the pallet assembly, the middle of the pallet assembly is recessed away from the silicon rod, i.e. recessed downwards in the figure, than on both sides.

For example, two sides extending along the length direction of the top of the second supporting plate are respectively provided with an upwardly extending supporting plate 111153, the upper surface of the supporting plate 111153 is a reference surface (such as a reference surface a) directly contacting with the lower surface of the silicon rod 2, for example, an anti-slip layer or an anti-slip structure made of polyurethane or the like can be added to the upper side of the supporting plate, and the foregoing recess is formed at the position of the supporting plate near the middle part, which is specifically implemented as follows: each side is provided with two separate support plates 111153, for example, which can be secured to the top of the pallet by means of fasteners such as screws, forming a recess therebetween. In this example, the support plate has a structure of avoiding the silicon rod at the mounting portion corresponding to the screw, such as a plurality of mounting positions provided on the support plate, the screw is provided at a position corresponding to the mounting position, and in the mounted state, the screw is completely accommodated at the mounting position and thus the top of the screw is not in contact with the bottom of the silicon rod.

It will be appreciated that the manner of forming the recess in the upper surface of the second pallet may be flexibly adjusted by those skilled in the art according to actual needs, for example, two separate support plates may be integrally provided and then the middle portion may be provided as a recess, the support plates may be integrally provided with the second pallet, etc.

In one possible embodiment, the lifting floor 11111 is provided with a connecting shaft 1117 which cooperates with the first plate 111151, and a return spring 1118 is provided between the lifting floor and the first plate. By the arrangement of the connection shaft 1117, the movement of the first blade in the X-axis and Y-axis directions is restricted, and thus the first blade can move only in the Z-axis direction under the guide of the connection shaft. When the cylinder 11112 is extended and the pallet assembly including the first pallet is raised, the return spring 1118 is in a compressed/stretched (as in this example, compressed) state. When the cylinder 11112 is retracted, the pallet assembly is lowered under the combined action of the spring force of the return spring 1118 and the weight of the pallet assembly itself, effecting a return of the pallet assembly. As in the present example, the first pallet of the pallet assembly is provided with a hole, and the connection shaft is freely received in the hole so that the second pallet can be smoothly raised (lifted)/lowered (returned) in the axial direction of the connection shaft. The bottom and the lifting bottom plate fixed connection or integrated into one piece of connecting axle, the top of connecting axle has the radial dimension that is greater than the hole, and the required lifting volume of silicon rod can be guaranteed to the axial dimension of connecting axle.

Referring primarily to fig. 5-6, in one possible embodiment, the clamping assembly 1112 basically includes a clamping movable end assembly 11121 and a clamping fixed end assembly 11122, with the clamping movable end assembly 11121 being opposite the clamping fixed end assembly 11122, capable of clamping the silicon rod 2 on the datum plane a of the pallet assembly in the X-axis direction. 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, for example, the clamping movable end assembly and the clamping fixed end assembly may be both provided in a movable form.

In one possible embodiment, the clamping movable end assembly 11121 mainly includes 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 reference 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 to push the movable clamping plate 111215 to move toward the clamping fixed end assembly 11122, thereby clamping the silicon rod 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 slide block slides on the guide rail, and the two movable end return springs 111214 arranged along the Y-axis direction are respectively in compression and extension states. After the (stationary and moving) clamp grips the silicon rod, the first cylinder 111211 is retracted, and the two movable end return springs 111214 are restored to restore the movable clamp plate 111215.

In one possible embodiment, the clamp-on fixed end assembly 11122 generally includes a clamp-on fixed mount 111221 and a fixed clamp plate 111222 and adjustment assembly disposed on the clamp-on fixed mount. The fixed clamping plate is provided with a reference surface (such as a reference surface b), and the movable clamping plate is driven by the first air cylinder 111211 to move towards the direction close to the fixed clamping plate, so that the silicon rod can be clamped along the X direction. Similar to the structure and function of the clamp movable end assembly 11121, the clamp fixed end assembly 11122 is also provided with a Y-axis rail slider and a fixed end return spring that enable the movable 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 adjustment assembly basically includes a clamp fixed adjustment plate 111223, a clamp fixed base plate 111224 and a clamp fixed adjustment drive member 111225, which in this example is a lead screw motor, that is fixedly coupled or integrally formed to a fixed clamp plate 111222. The clamping and fixing bottom plate 111224 is provided with a preformed hole, and the power output end of the screw motor can freely pass through the preformed hole and is fixedly connected with the adjusting plate, for example, a nut of the screw motor is fixedly connected with the adjusting plate. Therefore, the power output end of the screw motor is extended or retracted, so that the clamping and fixing adjusting plate and the clamping and fixing bottom plate can be driven to generate certain displacement on the left side and form a certain included angle, and the silicon rod 2 clamped between the fixing clamping plate and the movable clamping plate can be rotated around the Z axis, so that the angle adjustment of the silicon rod 2 along the Z axis is realized.

Referring primarily to fig. 7, another alternative form of adjustment assembly is presented. For ease of understanding and comparison, components having the same function (e.g., clamp fixing base plate, clamp fixing adjustment plate, fixing clamp plate, etc.) are given the same reference numerals. In this example, the lead screw motor is replaced with, for example, a motor that is connected to the clamp fixing base plate through a pair of meshing pairs. The meshing pair comprises a first gear 1112261 and a second gear 1112262, wherein the first gear is connected with the motor, and the second gear is fixedly connected with the clamping and fixing bottom plate. As in the present example, the second gear is larger than the pitch circle diameter of the first gear, and the clamping fixture base plate is significantly shorter than the aforementioned fixed clamping adjustment plate, such as a generally square plate. The clamping and fixing bottom plate arranged along the vertical direction is fixedly connected with the end face of the second gear arranged along the horizontal direction, for example, a clamping and fixing support plate 111227 is additionally arranged between the clamping and fixing bottom plate and the end face of the second gear to ensure the reliability of connection.

Referring primarily to fig. 2 and 8, in one possible embodiment, the loading and unloading feed support assembly 113 basically includes a loading platform 1131, a unloading platform 1132, and two sets of drive transmission mechanisms disposed therebetween. As in the present example, the drive transmission mechanism mainly includes a loading and unloading motor 11331, a first ball screw 11332, and a first rail slider 11333, where the loading and unloading motor drives the first ball screw to move under the guidance of the first rail slider 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 adjustment of the silicon rod along the X-axis direction is realized, and the feeding process and the discharging process are completed. As in the present example, an organ shield 11334 is provided between the feeding platform and the discharging platform, so as to play a role in preventing water and dust under the premise of ensuring that feeding and discharging can be achieved.

Referring mainly to fig. 9, in one possible embodiment, the centering assembly 112 mainly includes a centering base plate 1121, a centering motor (not shown) provided on the centering base plate 1121, a rack and pinion mechanism including 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, a clamping plate group including a first clamping plate 11251 and a second clamping plate 11252 provided opposite to each other and respectively connected to the first rack 11241 and the second rack 11242, the first clamping plate 11251 and the second clamping plate 11252 being respectively provided with a first probe group including two probes (respectively denoted as a first probe 11261 and a second probe 11262), and the first probe group including two probes mainly for detecting an adjustment amount of a position of a silicon rod.

In this example, a servo motor is provided at a position on the back side (rear side in the drawing) of the centering base plate and located at a substantially middle portion, a power output end of the servo motor extends out of the front side of the centering base plate and is connected with a first gear 11240, a position on the upper first rack 11241 near the left side and a position on the lower second rack 11242 near the right side are engaged with the gears 11240, respectively, and the right end of the first rack 11241 and the left end of the second rack 11242 are connected to a first clamp plate 11251 on the left side and a second clamp plate 11252 on the right side, respectively. In operation, the loading table assembly 111 conveys the silicon rod to the lower side of the centering assembly 112, and then stops moving, and the (first and second) clamping plates move from the outer side to the inner side respectively, and clamp the silicon rod and then stop moving. In order to ensure the stability of movement, the bottom plate is provided with a guide rail, 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 11240 to rotate, and the (first and second) racks drive the (first and second) clamping plates to move inwards in a mode of moving on the guide rail by meshing with the gear 11240.

The (first and second) clamping plates of the centering assembly 112 allow the (movable and fixed) jaws of the feed slide apparatus 12 to reach a proper position in advance before clamping the silicon rod by adjusting the positions of the silicon rod in the Y-axis direction, and at the same time, the length of the silicon rod can be measured. The first probe 11261 and the second probe 11262 of the two first probe groups determine the adjustment amounts of the position and the angle of the silicon rod by detecting the rear side surface and the upper side surface of the silicon rod, respectively.

The configuration of the first/second clamping plates and the arrangement of the first probe set on the corresponding clamping plates will be described below by taking the second clamping plate 11252 corresponding to the right side as an example. In one possible embodiment, the second clamping plate 11252 mainly includes a clamping plate main body 112521, a first mounting plate 112522 and a second mounting plate 112523, wherein the clamping plate main body is used for clamping the silicon rod 2, the first mounting plate is provided with a groove 1125221 matched with the guide rail on the centering base plate, the first probe 11261 is disposed on the first mounting plate, the second mounting plate 112523 is substantially parallel to the first mounting plate and is disposed at a position behind the lower side of the first mounting plate, and the second probe 11262 is disposed on the second mounting plate. The second mounting plate is disposed on the first mounting plate by a transverse connecting plate 112524, and a support structure 112525 is disposed at the interface between the second mounting plate 112523 and the connecting plate 112524.

In this example, the first probe 11261 is protruded to touch the upper surface of the silicon rod 2, and then the external dimension of the silicon rod 2 is calculated according to the compression amount of the head of the first probe 11261. After the inspection is completed, it is necessary to keep the head thereof away from the upper side surface of the silicon rod 2. In order to realize the expansion and contraction of the head of the first probe 11261, for example, a second cylinder 112611 may be configured for the first probe 11261, for example, the second cylinder 112611 may be mounted on the first mounting plate to push the head of the first probe to extend, and the compression amount of the head of the first probe may be obtained after the head of the first probe contacts the surface of the silicon rod 2. The second probe 11262 is fixed to the second mounting plate 112523 without the need for a cylinder. Specifically, the second probe 11262 is compressed only by moving the silicon rod 2 in a direction approaching the second probe 11262 by the feeding device 11, and the compression amount is obtained. Namely: detection of the rear surface of the silicon rod by the second probe 11262 can be achieved with movement of the silicon rod in the X-axis direction.

Based on this, the centering assembly 112 works on the following principle: the clamping plates of the centering assembly 112 are clamped and then loosened, the feeding platform 1131 continues to advance for a certain distance along the X-axis direction, and the two second probes 11262 are compressed, so that the overall 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. And 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 a distance, so that the overall 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 through the feeding device 11, and enabling the (fixed and movable) chucks to clamp the silicon rod 2 after the adjustment is finished, so as to finish the feeding.

Referring primarily to fig. 10, in one possible embodiment, the feed slip apparatus 12 basically includes a slip assembly, a stationary chuck 121 and a movable chuck 122, wherein the slip assembly basically includes a slip housing 1201 and a slip drive system. The sled drive system mainly includes a sled drive motor 1202, a second ball screw 1203, a screw mount 1204, and a second rail slider 1205. The screw base 1204 and the second guide rail slide block 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 guide rail slide block 1205 and generate displacement along the X-axis direction, so that the sliding table assembly moves along the Y-axis. The slide housing 1201 is mounted on the second rail slider 1205, and the stationary chuck 121 is fixed to the slide housing 1201 to move along the Y axis in synchronization with the slide assembly. The movable clamp 122 is mounted on the slipway housing 1201 by a movable clamp drive system, which includes a movable clamp drive motor 1222, a third ball screw (not shown), and a third rail slide (not shown), as similar to the slipway drive system. In this way, the movable clamp 122 can move along the Y-axis synchronously with the slipway assembly by the slipway driving motor 1202, or can move along the Y-axis relative to the slipway assembly by the driving system of the movable clamp 122. Further, the fixed chuck 121 and the movable chuck 122 are provided with a fixed chuck rotating motor 1211 and a movable chuck rotating motor 1221, respectively, so as to rotate the silicon rod after the (fixed, movable) chucks grip the silicon rod, such as to be rotatable from one set of surfaces to be ground to the other set of surfaces to be ground.

Referring mainly to fig. 1, 11 to 13, in one possible embodiment, the grinding device 13 mainly includes a pair of rough grinding stones 131 disposed opposite to each other for rough grinding the silicon rod 2, a pair of fine grinding stones 132 disposed opposite to each other for fine grinding the silicon rod 2, and a detection unit 133. Wherein, the fine grinding wheel 132 is located at the downstream side of the rough grinding wheel 133 along the feeding direction of the silicon rod so as to perform fine grinding after rough grinding of a certain grinding surface, and the detecting component 133 is configured on the rough grinding wheel 131 and is mainly used for detecting the position of the silicon rod 2 before the grinding operation starts.

In one possible embodiment, the rough grinding motor 1311 drives the fourth ball screw 1312 to move the bracket 1314 carrying the rough grinding wheel 131 in the X-axis direction by means of the guidance of the fourth rail slider 1313. The detection unit 133 is mounted on a holder 1314 for mounting the rough grinding wheel 131. The motion of the fine grinding wheel 132 may be similar to that of the coarse grinding wheel 131, and will not be described here.

In one possible embodiment, the detection assembly 133 basically includes a base 1331, a base 1332, a slide plate 1333, a second probe set, a third cylinder 1335 and a fifth rail slider 1336. Wherein the base plate 1332 is fixed on the base plate 1331, and the sliding plate 1333 is disposed on the base plate 1332 through a fifth guide rail slider 1336 group, for example, the second probe group includes three third probes 1334 arranged in a vertical direction and mounted on the sliding 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.

Based on the above structure, the working process of the grinding machine 1 of the present utility model is approximately as follows:

after the loading device 11 completes the pose adjustment of the silicon rod 2, the feeding sliding table device 12 moves along the Y axis relative to the sliding table assembly after reaching a preset position according to the length of the silicon rod measured by the centering assembly 112, so that the silicon rod is clamped by the cooperation between the fixed clamp 121 and the movable clamp 122. Thereafter, the feeding slide means 12 moves along the Y axis, carries the silicon rod 2 to the grinding area, the feeding slide means 12 moves the silicon rod along the Y axis and rotates the silicon rod in accordance with the program setting, and the grinding is completed. After finishing grinding, the feeding sliding table device returns to the blanking area of the feeding device 11, and at the moment, the (fixed and movable) chucks loosen the silicon rod, so that the silicon rod falls to a blanking table corresponding to the blanking area, and blanking is finished.

The inspection assembly 133 inspects the silicon rod 2 before grinding. Specifically, when the silicon rod 2 stops moving after coming to the first detection position, the third cylinder 1335 of the detection assembly 133 is extended to push the third probe 1334 to move along the X-axis direction, and the position of the third probe 1334 is advanced to the grinding wheel. Then, the rough grinding wheel 131 and the inspection unit 133 continue to move in the X-axis direction by the driving of the rough grinding motor 1311 until the third probe contacts the silicon rod and the inspection is completed (dotting is not ground). Along with the movement of the silicon rod along the Y-axis direction, the third probe can detect the knife-in position of the silicon rod, the middle position along the length of the rod and the knife-out position of the silicon rod in sequence, and then the chuck drives the silicon rod to rotate by 90 degrees, so that the detection process is repeated.

From the detection result of the detection unit 133, it is determined whether or not the foregoing grinding process is performed on the silicon rod 2. Specifically, if the maximum grinding size of the silicon rod is smaller than the standard size after grinding, judging that the size of the bar is unqualified and cannot be ground, and if so, withdrawing the rod, namely withdrawing the silicon rod to a blanking platform, and then performing manual intervention to different degrees. On the premise that the silicon rod is qualified, the position deviation and the angle deviation between the axis of the fixed and movable chucks and the axis of the silicon rod can be measured through the measurement of the second probe set on three positions of the silicon, if the deviation related to the four dimensions (namely, the deviation within the adjusting capacity of the feeding device) is larger than a specified value, the silicon rod is returned to the feeding table of the feeding device, the pose of the silicon rod is secondarily adjusted on the feeding table, and the detection is carried out again after the adjustment is completed. As in the case of a deviation to a position along the Y-axis, can be adjusted by the centering assembly. This can be achieved by feeding the (stationary, moving) jaws of the ramp device, as in the case of a deviation of the angle along the Y-axis. After the inspection is completed, grinding can be started. The grinding amount of the rough grinding wheel 131 can be calculated in the detection process, and the rough grinding wheel advances a certain distance to 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, the grinding amount of the fine grinding wheel 132 is calculated, and the fine grinding wheel is advanced to the X axis by a certain distance according to the grinding amount, so that fine grinding is performed. In the present utility model, there may be a direct association between the loading table assembly and the detection assembly, so that the aforementioned first probe set corresponding to the centering assembly may be appropriately reduced or omitted in alternative cases.

It can be seen that in the feeding device of the grinding machine, the position adjustment of the silicon rod along the Z axis is realized through the cooperation of the transmission plate, the connecting shaft and the lifting wheel in the lifting assembly. On the basis, the lifting assembly can simultaneously realize the angle adjustment of the silicon rod along the X axis by configuring a lifting mechanism and a pivot structure such as a pin shaft for a second supporting plate positioned above the supporting plate assembly. And an adjusting assembly is added for the clamping fixed end assembly of the clamping assembly, so that the angle adjustment of the silicon rod along the Z axis can be realized in a mode of driving the adjusting plate to lift up through a screw motor, driving the meshing pair to rotate through a motor, and the like. And the feeding and discharging support assembly is added to adjust the position of the silicon rod along the X axis in the process of moving the feeding table assembly holding the silicon rod. Based on the scheme of the utility model, the four-dimensional adjustment of the silicon rod can be realized through the feeding device, and the six degrees of freedom of the silicon rod can be effectively adjusted by combining the position adjustment along the Y axis mainly realized through the centering component and the angle adjustment along the Y axis realized through the matching modes of the (fixed and movable) chucks and the like, so that the feeding precision of the grinding machine is ensured.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (17)

1. An adjustable lift assembly, the lift assembly comprising:

a driving part;

the lifting wheel set comprises a plurality of lifting wheels, and the driving component is in driving connection with the lifting wheels; and

the support plate assembly can be carried by a workpiece to be machined, and the lifting wheel is in operative connection with the support plate assembly;

the driving component can drive the lifting wheels to rotate so as to lift the supporting plate assembly and a workpiece to be machined arranged on the supporting plate assembly;

the lift assembly further includes:

an adjustment section comprising at least one lifting mechanism capable of lifting a part of the pallet assembly so that different parts of the pallet assembly are at different heights by means of the at least one lifting mechanism.

2. The adjustable lift assembly of claim 1 wherein the lift assembly comprises a body portion,

the pallet assembly includes:

a first pallet provided to the main body portion; and

a second pallet drivingly connected to the jacking mechanism for:

and driving the first supporting plate to move relative to the second supporting plate through the jacking mechanism.

3. The adjustable lifting assembly of claim 2 wherein a second pallet is pivotally mounted to the body portion on the one hand and drivingly connected to the jacking mechanism on the other hand.

4. An adjustable lifting assembly according to claim 3 wherein the second pallet is provided with a support member pivotally mounted to the body portion.

5. The adjustable lift assembly of claim 1 wherein the pallet assembly has a projection at a location corresponding to the lift mechanism, the lift mechanism power take off being abuttable to the projection.

6. The adjustable lift assembly of claim 1, wherein the lift assembly further comprises:

And the restraint component is used for generating displacement along the height direction under the cooperation of the restraint component, and accordingly lifting the support plate component and a workpiece to be machined carried on the support plate component.

7. The adjustable lift assembly of claim 6 wherein the lift wheel is rotatably fixedly connected to the pallet assembly,

the lifting assembly further comprises a transmission part which is connected with the driving part on one hand and is in butt joint 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 part drives the transmission part to transversely move, the lifting wheel rotates along the guide surface and accordingly lifts the supporting plate assembly and a workpiece to be machined arranged on the supporting plate assembly.

8. The adjustable lifting assembly of claim 7 further comprising a connecting member which is fixedly connected or integrally formed on one hand to the transmission member and on the other hand to the power take-off of the drive member.

9. The adjustable lift assembly of claim 8 wherein the connection member is a connection block having a protruding end that is connected to the power take off end.

10. The lift assembly of claim 1, wherein the drive member and/or lift mechanism comprises a power cylinder or motor.

11. The adjustable lift assembly of claim 7 further comprising a floor, a chamber being defined between the floor and the pallet assembly,

the lifting wheel and the transmission part are accommodated in the cavity; and/or

The driving part is arranged at the side part of the bottom plate far away from the cavity.

12. The adjustable lift assembly of claim 6 further comprising a floor, a chamber being defined between the floor and the pallet assembly,

the restraining member is fixed to the base plate.

13. The adjustable lift assembly of claim 11, further comprising a return spring disposed between the floor and the pallet assembly.

14. The adjustable lift assembly of claim 6 wherein the restraining member is a connecting shaft and the pallet assembly is provided with a hole, the connecting shaft being freely received in the hole.

15. The adjustable lifting assembly of claim 1 wherein the pallet assembly is concave in configuration away from the workpiece at least near the center on a side near the workpiece as viewed along the length of the workpiece.

16. The adjustable lift assembly of claim 15 wherein the pallet assembly comprises a support plate,

the support plates comprise two groups which are arranged separately, each group of support plates comprises at least one support plate, and a structure which is sunken towards a direction away from the workpiece to be processed is formed between the two groups of support plates; or alternatively

The support plate is of an integrally formed structure, and a structure recessed in the direction away from the workpiece to be processed is formed at the position close to the middle of the support plate.

17. A grinding machine comprising the adjustable lift assembly of any one of claims 1 to 16.