CN118056657A

CN118056657A - Tension mechanism, wire saw unit, wire cutting machine, control method, medium and equipment

Info

Publication number: CN118056657A
Application number: CN202310430286.6A
Authority: CN
Inventors: 张璐; 尹燕刚; 赵海洋; 袁东方
Original assignee: Qingdao Gaoce Technology Co Ltd
Current assignee: Qingdao Gaoce Technology Co Ltd
Priority date: 2022-11-19
Filing date: 2023-04-20
Publication date: 2024-05-21
Also published as: CN221496645U; CN221136466U; CN221136467U; CN221697456U; CN221365272U

Abstract

The invention relates to the technical field of wire cutting, and particularly provides a tension mechanism, a wire saw unit, a wire cutting machine, a control method, a medium and equipment, wherein the control method of the wire cutting machine comprises the following steps: operating a drive member such that a tension wheel is capable of producing movement about a first axis via the first mechanism based at least on torque provided by the drive member; and at least allowing the tension pulley to move about a second axis via a second mechanism under an external force; the first mechanism and the second mechanism are integrated to at least a certain extent, and the first axis and the second axis are not coplanar and have an included angle. On the basis, the tension mechanism is arranged between the take-up and pay-off mechanism and the cutting mechanism of the wire cutting machine, so that the running reliability and the cutting quality of the wire cutting machine are guaranteed on the premise that the wire arranging wheel and the reversing wheel are omitted. And, by integrating the first mechanism and the second mechanism to at least a certain extent, the structural compactness of the tension mechanism can be improved.

Description

Tension mechanism, wire saw unit, wire cutting machine, control method, medium and equipment

Technical Field

The invention relates to the technical field of wire cutting, and particularly provides a tension mechanism, a wire saw unit, a wire cutting machine, a control method of the wire cutting machine, a medium computer readable storage medium and computer equipment.

Background

A wire cutting machine is a device for cutting a workpiece (such as a silicon rod (including a single crystal silicon rod, a polycrystalline silicon ingot, etc.), a sapphire rod, a magnetic rod, a semiconductor rod, etc.) of a hard and brittle material, such as cutting, squaring, slicing, etc., by using a cutting wire (such as a diamond wire, etc., which is a cutting steel wire with diamond fine particles embedded in the surface thereof).

Taking a slicing machine for slicing a photovoltaic silicon rod (silicon rod for short) as an example, the slicing machine directly operates the silicon rod through a cutting mechanism, and in a normal situation, the wire cutting machine mainly comprises three cutting main rollers (two upper and one lower) distributed in an inverted triangle form, dense annular grooves are processed on the cutting main rollers, and a wire net capable of continuously cutting the silicon rod can be formed by densely winding diamond wires at positions corresponding to the annular grooves. In this way, the diamond wire between the two upper main cutting rolls can cut the workpiece by the reciprocating movement of the diamond wire between the cutting mechanism and other structures of the wire cutting machine such as the take-up and pay-off rolls.

Referring to fig. 1, fig. 1 shows a schematic configuration of a microtome according to the related art. As shown in fig. 1, in this example, the diamond wire of the existing microtome is between the winding rollers 01 of the left and right winding and unwinding mechanisms, and the cutting mechanism of the microtome generally includes two or three main rollers, in this example, three main rollers one 021 on the upper left, two 022 on the upper right, and three 023 on the lower side. In addition, the slicer comprises at least six guide wheels (three are respectively arranged on the left side and the right side), and taking the left side as an example, the three guide wheels are respectively a winding displacement wheel 03, a tension wheel 04 and a reversing wheel 05. Based on this structure, the wire winding route of slicer is: for example, the left winding roller (taking the winding roller as a paying-off roller (in this case, the right winding roller is a winding roller), obviously, the function of the winding roller can be switched between the winding roller and the paying-off roller, if the left winding roller is the winding roller, the right winding roller is correspondingly switched to the paying-off roller), the left winding roller (winding wheel, tension wheel and reversing wheel), the main roller three, the main roller two, the main roller one, the main roller three (winding for forming a wire net for a plurality of times), the right winding roller (reversing wheel, tension wheel and winding wheel), and the right winding roller.

Based on this, the inventors have purposely proposed a product form that reduces the number of guide wheels. This is because: the product form of reducing the number of the guide wheels not only can reduce the input cost of a user side in the aspects of guide wheel consumable materials and the like, but also can reduce the distance from the main roller to the winding roller of the diamond wire. On the basis, the negative influence caused by extra tension due to factors such as inertia of the diamond wire, friction resistance of the guide wheels, bending stress of the diamond wire bypassing the guide wheels, torsion stress of the diamond wire caused by non-ideal coplanarity among the guide wheels and the like in the operation process of the diamond wire is hopefully reduced, and therefore the cutting quality of the slicer is improved. Obviously, the method has great significance for the application of ultrafine line and high line speed of the future microtome.

However, how to ensure the operational reliability and cutting quality of the slicer is a technical problem that must be faced when a product form is proposed that reduces the number of guide wheels.

Therefore, there is a need in the art for a new solution to the above technical problems.

Disclosure of Invention

The present invention aims to solve at least in part the above-mentioned technical problems, and in particular, to solve the technical problems of how to ensure the operational reliability and cutting quality of the microtome as much as possible when proposing a product form with a reduced number of guide wheels.

In a first aspect, the present invention provides a tension mechanism comprising: a tension wheel, a first mechanism through which the tension wheel is capable of producing movement about a first axis based at least on torque provided by the drive member; and a second mechanism through which at least the tension pulley is movable about a second axis under the influence of an external force; wherein the first mechanism and the second mechanism are integrated to at least a certain extent; wherein the first axis and the second axis are not coplanar and have an included angle therebetween.

With such a configuration, it is possible to achieve a partial function in the traverse corresponding to the conventional six-guide structure on the basis of ensuring the level of tension of the cutting wire wound therearound by the cooperation of the motions related to the two axes. The method can be as follows: when friction and thus stress is created between the cutting wire and the wall of the wire groove due to its positional deflection within the wire groove, this friction is reduced at least by rotation of the tension pulley about the second axis.

It is understood that, a specific manner of implementing the integrated setting and the degree of the integrated setting by the first mechanism and the second mechanism on the premise of implementing the respective functions may be determined by those skilled in the art according to actual requirements. The method can be as follows: an intermediate structure is introduced, on which both are arranged and which allows an interference-free movement; an intermediate structure is introduced, and the intermediate structure can be fixedly arranged or movably arranged; at least a portion of the first mechanism and the second mechanism are common; etc.

It will be appreciated that the size of the angle between the first axis and the second axis and the relative positional relationship when forming the angle, the source of the force/moment required by the tension pulley to produce movement about the two, the manner of synthesizing movement achieved by the cooperation of the two, etc. may be determined by one skilled in the art according to actual requirements. Such as having a first axis and a second axis. For example, the tension wheel may be moved about the first axis by an external force (such as an external force accompanying deflection of the cutting wire) generated during operation of the wire cutting machine, for example, in addition to the drive member, either by movement of the tension wheel about the first axis alone or by movement of the tension wheel in synchronization or non-synchronization with other associated structures. Similarly, the external force that causes the tension pulley to move about the second axis may be an external force that is generated when the wire cutting machine is in operation (e.g., an external force that accompanies deflection of the cutting wire), or an external force that may be applied by a driving member such as the one described above or other driving members.

Illustratively, the forces that cause the tension wheel to generate motion about the first/second axis each include external forces from the drive component and the wire cutting machine that are generated in operation. The tension pulley may be moved about the first/second axis in any reasonable posture, or alternatively, any reasonable relative positional relationship between the centerline of the tension pulley and the first/second axis may be provided, such as being coincident, parallel, or having an included angle, etc.

Furthermore, the specific form of the driving means can be determined by the person skilled in the art according to the actual requirements, such as a motor, a rotating module or a rotating assembly realized by means of a power cylinder (hydraulic cylinder, air cylinder, electric cylinder, etc.) and a corresponding transmission mechanism.

For the tension mechanism described above, in one possible embodiment, the first mechanism comprises: the tension wheel is arranged on the connecting assembly; and the first rotating shaft is connected with the power output shaft of the driving part and can drive the tension wheel to move around the first axis based on the torque provided by the driving part.

By means of this construction, possible configurations of the first mechanism are provided.

It is understood that the structural form, number and connection relation between the connecting components and the rotating shaft can be determined by those skilled in the art according to actual requirements. The shaft is illustratively rigidly coupled to the coupling assembly such that rotation of the shaft directly rotates the tension pulley about the first axis.

For the tension mechanism described above, in one possible embodiment, the connection assembly comprises: the tension mechanism comprises a first connecting part, a tension wheel and a tension mechanism, wherein the tension wheel is arranged on the first connecting part, the tension mechanism is formed in a pivoting mode of the first connecting part, and the first rotating shaft is connected with the first connecting part through a transmission mechanism.

By means of this construction, a possible design of the connection assembly is provided.

In this way, based on the first connecting part which is pivoted, the torque output by the driving part is transmitted to the first connecting part through the rotating shaft and the transmission mechanism, and the driving part can drive the first connecting part and the tension wheel arranged on the first connecting part to move around the first axis.

It will be appreciated that the person skilled in the art may determine the form of construction of the first connection member, the specific manner in which it constitutes the tension mechanism in the pivot arrangement, the implementation of the specific pivot arrangement, etc. according to the actual requirements. For example, the tension mechanism can be pivotally arranged on a relatively fixed structure or a structure capable of generating movement, and can be an existing component of the tension mechanism or an additional component.

Furthermore, it will be appreciated that the specific form of the transmission mechanism, such as various forms of speed reducers or the like, which enable transmission between the two rotations, may be determined by those skilled in the art according to actual requirements.

For the tension mechanism described above, in one possible embodiment, the transmission mechanism comprises a gear pair.

By means of this construction, a possible design of the transmission is provided.

It is understood that the number of stages of the gear pair, the positional relationship/specification between the respective gears, etc. can be determined according to actual needs by those skilled in the art.

For the tension mechanism described above, in one possible embodiment, the gear pair comprises a first gear wheel connected to a first shaft and a second gear wheel connected to the first connecting part, wherein the pitch diameter of the first gear wheel is smaller than the pitch diameter of the second gear wheel; and/or the first gear and/or the second gear is a sector gear.

By means of this construction, a possible design of the gear pair is provided. The gear pair is a torque increasing gear set based on the relation between the reference circles. Based on the structure of the sector gear, the installation environment of the tension mechanism can be better adapted.

With respect to the tension mechanism described above, in one possible embodiment, the first connection member comprises: a first portion on which the tension pulley is pivotally disposed and which constitutes the tension mechanism in a pivotally disposed manner; and a second portion fixedly connected or integrally formed with the first portion, the second gear being disposed in the second portion.

By means of this construction, possible configurations of the first connecting part are given.

It will be appreciated that the person skilled in the art may determine the possible constructional form of the first/second part and the implementation of the two constituting the first connecting means, etc. according to the actual requirements. The first portion may be a plate-like structure, a bar-like structure, etc., and the second portion may be a mounting plate extending from the first portion or a multi-bar-like structure, etc.

For the tension mechanism described above, in one possible embodiment, the second portion comprises an arc-like structure adapted to the second gear.

By this construction, a specific construction of the second part is given.

For the tension mechanism described above, in one possible embodiment, the arc-like structure is provided with an adjustment structure for: the position of the second gear on the arc-shaped structure is adjusted through an adjusting structure, so that the meshing gap between the second gear and the first gear is adjusted.

With this configuration, it is possible to ensure the transmission reliability of the transmission mechanism, such as the adjustment structure being a bar-shaped hole adapted to the arc-shaped structure. The meshing gap between the first gear and the second gear can be eliminated by small amplitude movements of the larger gear on the arc-like structure.

For the tension mechanism described above, in one possible embodiment, the connection assembly comprises a second connection member, wherein the second connection member has a first mounting location, the first pivot being pivotally disposed at the first mounting location; and/or the first connecting part is pivotally arranged on the second connecting part.

It will be appreciated that a person skilled in the art may determine the structural form/number of the second connecting member, the structural form/number of the first mounting position formed by the second connecting member, the specific implementation manner in which the second connecting member is pivotally arranged at the first mounting position, etc. according to actual needs. For example, the second connecting member may be a plate-like structure, a rod-like structure, a block-like structure, or the like, and the mounting position may be a hole, a groove, or the like.

For the tension mechanism described above, in one possible embodiment, the second mechanism comprises a second shaft pivotally connected to the second connecting member.

By such a construction, a possible way of integrating the first and second mechanism is given. Such as a direct pivotal connection or by means of an intermediate structure.

With the above-described tension mechanism, in one possible embodiment, the second connecting member has a second mounting position, and the second pivot shaft is pivotally provided to the second connecting member.

By such a construction, a way of achieving a pivotal connection of the second rotation shaft with the second connection member is given. Similar to the first mounting location described above, the structural form, number and arrangement position and manner of the second mounting location on the second connecting member can be determined by those skilled in the art according to actual requirements. In addition, the relative positions of the first installation position and the second installation position can be determined according to actual requirements.

With the tension mechanism described above, in one possible embodiment, the second connecting member is provided with a rotary damper between a position corresponding to the second mounting position and the second rotating shaft.

With this configuration, it is possible to effectively suppress the occurrence of an excessive instantaneous rotation during the occurrence of the rotational movement, and to obtain a smoother rotational effect.

It is understood that a person skilled in the art may choose any reasonable structural form of the rotary damper and the arrangement of the second connecting component and the second rotating shaft according to actual requirements.

For the tension mechanism described above, in one possible embodiment, the first rotation shaft includes a first sub-shaft and a second sub-shaft, and a universal transmission mechanism is provided between the first sub-shaft and the second sub-shaft.

By this configuration, an integrated manner of the first mechanism and the second mechanism when both rotations are achieved is given. For example, the first sub-shaft and the second sub-shaft can be shafts added on the basis of the universal transmission mechanism or shafts belonging to the universal transmission mechanism.

Here, a universal drive is to be understood as a mechanism which can be used to reliably drive in a plurality of directions between two sub-shafts. The term "universal" is used merely to denote the properties of a plurality of directions or degrees of freedom, and a person skilled in the art can choose any reasonable form of realisable universal drive and determine a specific degree of quantization according to the actual requirements.

For the tension mechanism described above, in one possible embodiment, the first sub-shaft, the second sub-shaft and the universal drive mechanism form a universal joint coupling.

With this configuration, a specific way of integrating the first mechanism and the second mechanism is given. Any known form of universal coupling or the like may be selected as desired by those skilled in the art.

Based on this, the tension pulley can generate a swing about the first axis under the drive of the first drive member. When the cutting line deflects within the tension pulley to apply an external force to the groove of the tension pulley, the tension pulley is able to deflect about the second axis under the force of the external force. Due to the action of the universal transmission mechanism, the tension wheel can generate deflection around the second shaft and can be reliably realized along with rotation between the first sub-shaft and the second sub-shaft on the premise that the torque can be reliably transmitted.

For the above-mentioned tension mechanism, in one possible embodiment, the tension mechanism is provided with a shielding member at a position corresponding to the universal drive mechanism.

With this configuration, the cutting fluid in the working environment and impurities in the cutting fluid can be effectively prevented from entering the inside of the universal transmission mechanism. For example, the shielding member may include one or more members, and the structure thereof may be a plate-like structure, a ring-like structure, or the like.

With the above-described tension mechanism, in one possible embodiment, the second connecting member is provided with a weight assembly.

With this configuration, it is possible to ensure that the center of gravity is always maintained on the second axis during rotation of the tension pulley about the second axis.

It is understood that the structural form, number, arrangement position and arrangement mode of the counterweight assembly can be determined by those skilled in the art according to actual requirements, and can be a fixed structure or a movable structure. Such as the configuration component may be provided on the second connecting member or may be provided on other components that deflect with the second connecting member.

With respect to the tension mechanism described above, in one possible embodiment, at least a portion of the weight assembly is a movable structure.

With this configuration, the weight distribution form of the counterweight assembly can be adjusted by the movement of the structure.

It will be appreciated that the movable form of the counterweight assembly can be determined by those skilled in the art according to actual needs, such as movement, rotation (rotation, revolution), a combination of the two, and the like. For example, it may be moved in a cross direction.

For the tension mechanism described above, in one possible embodiment, the counterweight assembly includes: the counterweight block is arranged on the counterweight rod, and the counterweight rod is arranged on the second connecting component in a direct or indirect mode; wherein the balancing weight can move along the axial direction of the balancing weight rod and/or around the circumferential direction of the balancing weight rod.

For the tension mechanism described above, in one possible embodiment, the counterweight assembly includes: an adjusting member capable of applying an external force to the weight lever so as to: the balancing weight moves along the axial direction of the balancing weight rod under the action of the external force.

With this configuration, the weight can be moved in the axial direction of the weight shaft by applying an external force to the adjusting member.

It is understood that the structural form, the number of the adjusting components, the direction of the force applied by the adjusting components to the balancing weights and the like can be determined by a person skilled in the art according to actual requirements. Illustratively, the weight is arranged transversely, two telescopic adjusting parts are arranged on two sides of the weight along the arrangement direction, and the weight moves rightwards under the condition that the left adjusting part extends and the right adjusting part retracts. And vice versa to the left. Any reasonable structure or mechanism can be selected by those skilled in the art on the premise that telescopic movement can be achieved.

For the tension mechanism described above, in one possible embodiment, the weight bar includes one or more; and/or the adjustment member is an adjustment screw.

For the tension mechanism described above, in one possible embodiment, the weight is capable of helical movement along the weight rod.

With such a construction, a specific form of the counterweight assembly to effect its movability is given.

For the tension mechanism described above, in one possible embodiment, the weight includes at least one, wherein in a case where the weight includes a plurality of weights, the installation directions of the weight bars corresponding to the plurality of weights are the same or different and/or the weights are directly or indirectly provided to the second connection member through the weight bars.

By such a construction, a possible form of construction of the counterweight assembly is given.

For the tension mechanism, in one possible implementation manner, the balancing weights include a first balancing weight and a second balancing weight, the first balancing weight is arranged on the second connecting component through a balancing weight rod, and the second balancing weight is arranged on the first balancing weight through a balancing weight rod, wherein an included angle is formed between the balancing weight rods corresponding to the first balancing weight and the second balancing weight.

With such a construction, a specific construction of the counterweight assembly is given.

It will be appreciated that the size of the included angle between the two weight bars may be determined by those skilled in the art according to actual needs, and may be perpendicular to each other or at any reasonable angle.

With the above-described tension mechanism, in one possible embodiment, the second connecting member or the structure that moves with the second connecting member is provided with a mounting base to which the counterweight assembly is provided.

With this construction, a possible form is given in which the counterweight assembly is provided to the second connecting member.

It will be appreciated that the structural form of the counterweight mounting body and its placement on the second connection member can be determined by one skilled in the art based on actual requirements. For example, the counterweight mounting substrate is a bracket, a disk-shaped structure, a plate-shaped structure or a block-shaped structure, etc.

For the tension mechanism described above, in one possible embodiment, the tension pulley has a wire groove around which a cutting wire can be wound, the second axis being in the plane of the wire groove or the second axis being parallel to the plane of the wire groove.

With this configuration, a specific internal relative positional relationship of the tension mechanism is given.

For the tension mechanism described above, in one possible embodiment, the first axis and the second axis are perpendicular to each other.

In a second aspect, the present invention provides a wire saw unit comprising a tension mechanism according to any one of the preceding claims.

It will be appreciated that the wire saw unit has all the technical effects of the tension mechanism described in any of the foregoing, and will not be described in detail herein.

For the above wire saw unit, in one possible embodiment, the wire saw unit includes a wire takeup and paying out mechanism and a cutting mechanism, and the tension mechanism is disposed between the wire takeup and paying out mechanism and the cutting mechanism.

By means of this construction, possible configurations of the wire saw unit are given.

For the above wire saw unit, in one possible embodiment, the tension wheel has a wire groove around which a cutting wire can be wound, and a threading mechanism is provided between the cutting mechanism and the tension mechanism, wherein in the case that no deviation of the cutting wire occurs, the second axis is parallel to the cutting wire between the wire groove and the threading mechanism.

With this configuration, a specific position of the second axis on the wire saw unit is given.

It should be understood that parallelism as referred to herein is understood to be substantially parallel and more specifically that it is theoretically possible to achieve a parallel relationship between the two, but that a positional relationship is obtained between the two which is considered to be substantially parallel, taking into account the actual working conditions of the wire saw, the tolerances in the construction and the form of construction of the second connecting arm as described above, etc.

In a third aspect, the present invention provides a wire cutting machine comprising a tensioning mechanism or a wire saw unit as defined in any one of the preceding claims.

It will be appreciated that the wire cutting machine has all the technical effects of the tension mechanism described in any one of the foregoing, and will not be described in detail herein.

For the wire cutting machine described above, in one possible embodiment, the wire cutting machine is a microtome.

With this construction, a specific structural form of the wire cutting machine is given.

In a fourth aspect, the present invention provides a control method of a wire cutting machine including a tension mechanism including a driving part, a tension pulley, a first mechanism, and a second mechanism, the control method including: operating the drive member such that the tension wheel is capable of producing movement about a first axis via the first mechanism based at least on torque provided by the drive member; and allowing at least the tension pulley to move about a second axis via the second mechanism under an external force; wherein the first mechanism and the second mechanism are integrated to at least a certain extent; wherein the first axis and the second axis are not coplanar and have an included angle therebetween.

By such a constitution, an operation form which is possible to realize by the tension pulley based on the driving force of the driving member in the wire cutting machine is given.

It is to be understood that the structural forms of the relevant components mentioned herein and in the control methods below may include, but are not limited to, the specific forms mentioned in the foregoing.

For the control method described above, in one possible embodiment, the first mechanism includes a connection assembly and a first shaft, and the "operating the driving member so that the tension wheel is capable of generating a movement about a first axis via the first mechanism based at least on a torque provided by the driving member" includes: the driving part is enabled to operate, and the tension wheel arranged on the connecting assembly moves around a first axis through the first rotating shaft.

By means of such a construction, a possible implementation of the drive connection between the drive member and the connection assembly is given.

For the above control method, in one possible embodiment, the connection assembly includes a first connection part, and the "making the driving part operate, the tension wheel provided to the connection assembly moves around a first axis through the first rotation shaft" includes: the driving part is enabled to operate, and the tension wheel arranged on the first connecting part moves around a first axis through the first rotating shaft and the transmission mechanism.

By means of such a construction, a possible implementation of the drive connection between the first rotation shaft and the first connection part is given.

For the above control method, in one possible implementation manner, the transmission mechanism includes a gear pair, and the "making the driving component operate, where the driving component drives, by using the first rotating shaft and the transmission mechanism, the tension wheel disposed on the connection assembly to move around the first axis" includes: the driving part is driven to operate, and the driving part drives the tension wheel arranged on the first connecting part to move around the first axis through driving the first rotating shaft to rotate and the gear in the gear pair to be meshed and transmitted.

By means of such a construction, a specific implementation of the drive connection between the drive member and the connection assembly is given.

For the control method, in one possible implementation manner, the connection assembly includes a second connection part, the second connection part has a first installation position, the "enabling the driving part to operate, the tension wheel disposed on the first connection part moves around a first axis through the first rotating shaft and the transmission mechanism" includes: the driving part is enabled to operate, the tension wheel arranged on the first connecting part rotates in the first installation position through the first rotating shaft, and the transmission mechanism moves around the first axis.

By means of this construction, a manner of rotation of the first shaft is given in the case where a driving connection between the drive member and the connection assembly is achieved by means of the first shaft.

For the control method described above, in one possible embodiment, the first spindle comprises a first sub-spindle and a second sub-spindle, between which a universal drive mechanism is arranged, the second mechanism comprising a second spindle, which is pivotally connected to the second connecting part, the "operating the drive part so that the tension wheel is able to generate a movement about the first axis via the first mechanism based at least on the torque provided by the drive part; and allowing at least the tension pulley to be movable about a second axis under an external force "comprising: operating the drive member such that the tension wheel is capable of producing movement about a first axis via the first mechanism based at least on torque provided by the drive member; and allowing at least the tension pulley to move about the second axis by means of a pivoting movement of the second spindle on the second connecting member by means of a rotation between the first and second sub-shafts under the force exerted on the wire grooves of the tension pulley about the cutting wire provided to the cutting wheel.

By means of this construction, an integrated manner of the first mechanism and the second mechanism and a corresponding manner of realization of the movement corresponding to the two axes are provided.

For the control method described above, in one possible embodiment, the second connecting member has a second mounting position at least allowing the tension wheel to move about the second axis by pivotal movement of the second shaft on the second connecting member comprises: at least the tension pulley is allowed to move about the second axis by a pivoting movement of the second spindle at the second mounting location of the second connection part.

By such a construction, an implementation of the relative position between the second rotation shaft and the second connection part and the corresponding rotation about the second axis is given.

With the above control method, in one possible embodiment, the second connecting member is provided with a weight assembly, and in the case of "the tension pulley is allowed to move about the second axis by pivotal movement of the second rotating shaft on the second connecting member by means of rotation between the first sub-shaft and the second sub-shaft under the force applied to the wire groove of the tension pulley about the cutting wire provided to the cutting wheel", the control method includes: adjusting weight parameters of the weight assembly to: the center of gravity of the moving part rotating about the second axis is at the second axis.

With this configuration, stability of movement about the second axis can be ensured. Such as weight parameters, may include weight, direction, position changes, etc.

For the control method, in one possible implementation manner, the weight assembly includes a weight block and a weight rod, and the adjusting the weight parameter of the weight assembly includes: the balancing weight is moved along the axial direction of the balancing weight rod and/or around the circumferential direction of the balancing weight rod.

By such a constitution, a kind of weight parameter adjustment is provided

For the control method described above, in one possible embodiment, the weight assembly includes an adjusting member, and the "moving the weight in the axial direction of the weight rod and/or in the circumferential direction around the weight rod" includes: enabling the adjustment member to apply an external force to the weight bar so as to: the balancing weight moves along the axial direction of the balancing weight rod under the action of the external force.

By this construction, a specific implementation of the axial movement of the balancing weight is given.

For the control method described above, in one possible embodiment, the "moving the weight in the axial direction of the weight rod and/or the circumferential direction around the weight rod" includes: and enabling the balancing weight to move spirally along the balancing weight rod.

By this construction, a specific implementation of the axial and circumferential movement of the balancing weight is given.

In a fifth aspect, the present invention provides a computer readable storage medium comprising a memory adapted to store a plurality of program codes adapted to be loaded and executed by a processor to perform the method of controlling a cutter of any one of the preceding claims.

It will be appreciated that the computer readable storage medium has all the technical effects of the control method of the cutting machine described in any one of the foregoing, and will not be described herein.

It will be appreciated by those skilled in the art that the present invention may implement all or part of the flow of the control method of the cutting machine, and may be implemented by a computer program for instructing the relevant hardware, where the computer program may be stored in a computer readable storage medium, and where the computer program, when executed by a processor, may implement the steps of the respective method embodiments described above. Wherein the computer program comprises computer program code, it being understood that the program code comprises, but is not limited to, program code for performing the control method of the cutting machine described above. For convenience of explanation, only parts relevant to the present invention are shown. The computer program code may be in the form of source code, object code, executable files, or in some intermediate form. The computer readable storage medium may include: any entity or device, medium, usb disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier wave signals, telecommunications signals, software distribution media, and the like capable of carrying the computer program code. It should be noted that the computer readable storage medium may include content that is subject to appropriate increases and decreases as required by jurisdictions and by jurisdictions in which such computer readable storage medium does not include electrical carrier signals and telecommunications signals.

In a sixth aspect, the invention provides a computer device comprising a memory and a processor, the memory being adapted to store a plurality of program codes adapted to be loaded and executed by the processor to perform the method of controlling a cutter of any one of the preceding claims.

It will be appreciated that the apparatus has all the technical effects of the control method of the cutting machine described in any one of the foregoing, and will not be described in detail herein. The device may be a computer controlled device formed from a variety of electronic devices.

Drawings

The preferred embodiments of the present invention will be described below by taking a silicon rod to be cut (hereinafter, abbreviated as a silicon rod) as a workpiece, and a wire cutting machine as a slicer as an example, and referring to the accompanying drawings, in which:

FIG. 1 is a schematic view showing the structure of a microtome according to the prior art;

FIG. 2 shows a schematic view of the slicer according to one embodiment of the present invention;

FIG. 3 is a schematic view showing the structure of a tension mechanism of a microtome according to the prior art;

fig. 4 is a schematic diagram showing the working principle of a tension mechanism of a microtome according to the prior art;

FIG. 5 is a schematic view of a tension mechanism of a microtome according to one embodiment of the present invention, including a threading mechanism, take-up and pay-off rolls, etc.;

Fig. 6 shows a second schematic structural view of a tension mechanism of the slicer according to an embodiment of the present invention, in which a threading mechanism, a take-up and pay-off roller, etc. are omitted;

FIG. 7 illustrates a third schematic structural view of a tension mechanism of a microtome according to one embodiment of the present invention showing a tension swing link;

FIG. 8 is a schematic diagram of a tension mechanism of a microtome according to one embodiment of the invention showing a connecting rod;

FIG. 9 is a schematic diagram of a tension mechanism of a microtome according to one embodiment of the present invention showing a tension pendulum rod and a gear pair as a transmission mechanism;

FIG. 10 is a schematic view showing the structure of a limit structure in a tension mechanism of a microtome according to one embodiment of the invention;

FIG. 11 is a schematic view of the construction of a counterweight assembly in the tension mechanism of the microtome according to one embodiment of the invention;

FIG. 12 is a schematic view of the structure of the universal coupling in the tension mechanism of the microtome according to one embodiment of the present invention;

FIG. 13 illustrates an exploded view of the universal coupling in the tension mechanism of the microtome according to one embodiment of the present invention;

FIG. 14 shows a schematic view of the rotary damper in the tension mechanism of the microtome according to one embodiment of the present invention;

FIG. 15 shows an exploded view of a rotary damper in the tension mechanism of the microtome according to one embodiment of the present invention;

FIG. 16 illustrates a schematic diagram of a state of a yaw movement assembly of a microtome according to one embodiment of the present invention;

FIG. 17 illustrates a second schematic view of the state of the yaw movement assembly of the microtome according to one embodiment of the present invention;

FIG. 18 illustrates a third schematic view of the state of the yaw movement assembly of the microtome according to one embodiment of the present invention;

FIG. 19 illustrates a schematic diagram of a state of a deflection motion assembly of a microtome according to one embodiment of the invention; and

Fig. 20 shows a second schematic view of the state of the deflection motion assembly of the microtome according to one embodiment of the invention.

List of reference numerals:

01. A wire winding roller; 021. a primary roller I; 022. a main roller II; 023. a main roller III; 03. a winding displacement wheel; 04. a tension wheel; 041. a tension motor (conventional example); 042. tension swing rod (existing example); 05. a reversing wheel;

100. A slicer;

21. a first take-up and pay-off mechanism; 211. a wire winding and unwinding roller; 22. a second take-up and pay-off mechanism;

31. a first cutting main roller; 32. a second cutting main roller; 33. a third cutting main roller;

41. A first tension mechanism; 42. a second tension mechanism;

5. a threading mechanism; 51. wiring grooves;

61. A tension wheel; 62. a tension motor; 621. a motor base; 622. an adapter plate; 623. adjusting the block;

63. Tension swing rod;

631. A first portion; 632. a second portion; 6331. a pinion gear; 6332. a large gear;

634. A limit structure; 6341. a limiting bottom plate; 6342. a limit stop lever; 6343. a limit transition section; 6344. limiting the connecting hole;

635. a limiting hole;

636. a bar-shaped hole;

637. A rotating shaft;

64. A connecting rod;

641. A first mounting hole;

642. a second mounting hole;

643. a third mounting hole;

651. A universal joint coupling;

6511. A short shaft; 6512. a long axis; 6514. a pin shaft; 6515. a gland; 6516. a ball; 6517. PTFE (polytetrafluoroethylene) sheet; 6518. a waterproof baffle;

652. A second rotating shaft;

66. a rotary damper;

661. An oil baffle plate; 662. a damping end cap; 663. damping press rings; 664. damping guide rail; 665. a damping piston; 666. an O-ring;

671. a first axis; 672. a second axis;

7. A counterweight assembly;

71. A counterweight bracket; 711. a weight reduction groove;

721. a first balancing weight; 722. a second balancing weight;

731. A first weight bar; 732. a second weight bar;

74. Adjusting a screw;

8. A diamond wire;

9. A silicon rod;

10. a distance measuring sensor.

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 merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described in connection with the first mechanism and the second mechanism being integrally provided by the connecting rod and the universal joint coupling, it is obvious that those skilled in the art can flexibly adjust the present embodiment according to actual needs. In addition, on the premise of not influencing the operation reliability of the slicing machine, the movement corresponding to the first axis and the movement corresponding to the second axis can meet the requirements of ensuring tension stability and timely deflection arrangement in a synthetic mode. Such as the first axis and the second axis may not be limited to perpendicular or the like.

It should be noted that, in the description of the present invention, 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 invention. 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 invention, 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 invention 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 invention, it will be appreciated by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, principles of microtomes, etc., well known to those skilled in the art have not been described in detail in order to facilitate a salient point of the present invention.

Three of the devices of the wire cutting machine are in the form of a cutter, a squarer and a slicer, taking a silicon rod as an example of a workpiece to be processed, wherein the cutter is mainly used for cutting a longer silicon rod into a silicon rod with a shorter length (such as a silicon rod with a circular cross section generally, for short, a round rod), and specifically, cutting one silicon rod into a plurality of sections by cutting along the radial direction of the silicon rod. The squaring machine is mainly used for cutting a round bar into a silicon bar with a rectangular (such as square) cross section (the square bar is short, such as the square bar at the stage is not subjected to grinding processing and can be commonly called a rough bar), and specifically, the round bar is cut into the square bar by removing the edge skin of the round bar in the axial cutting mode of the silicon bar. The slicing machine is mainly used for densely and continuously cutting square bars with standard precision (such as square bars at the stage of grinding and processing, which can be commonly called as finished bars) along the radial direction of the square bars in a multi-wire cutting mode so as to obtain sheets to be used. The present invention is described mainly with respect to a wire cutting machine using a wire-mesh slicer as an example.

Referring primarily to fig. 2 and 5, fig. 2 shows a schematic structural view of a microtome according to one embodiment of the present invention, and fig. 5 shows a schematic structural view of a tension mechanism of a microtome according to one embodiment of the present invention. As shown in fig. 2 and 5, in one possible embodiment, the wire saw unit of the slicing machine 100 mainly includes a first wire winding and unwinding mechanism 21 and a second wire winding and unwinding mechanism 22 on the left and right sides, the main structure of the first/second wire winding and unwinding mechanism is a wire winding and unwinding roller, and a diamond wire as a cutting wire can realize a winding and unwinding function (the winding and unwinding functions can be interchanged). Wherein the cutting area of the microtome is provided with a cutting mechanism 3, as in the present example comprising a first cutting main roller 31, a second cutting main roller 32 and a third cutting main roller 33 distributed in an inverted triangle, wherein the cutting main rollers (31, 32) are located above the third cutting main roller 33. A first tension mechanism 41 and a second tension mechanism 42 are respectively arranged between the cutting mechanism 3 and the first winding and unwinding mechanism 21 and the second winding and unwinding mechanism 22, and winding and unwinding rollers of the two winding and unwinding mechanisms are lower than tension wheels of the tension mechanisms on the same side. In this way, by the reciprocating movement of the diamond wire between the two wire take-up and pay-off rollers, the tension wheels on the corresponding sides and the cutting mechanism, the silicon wafer can be obtained by cutting the silicon rod along the radial direction of the silicon rod. Specifically, the diamond wire wound by the take-up and pay-off rolls with the 'pay-off' function is guided to a main roll mechanism consisting of cutting main rolls (31, 32 and 33) through corresponding side tension wheels, and then guided to the take-up and pay-off rolls with the 'take-up' function through another tension wheel, and the take-up and pay-off rolls on two sides alternately take-up and pay-off. On this basis, the silicon rod 9 moving downward can be cut by the wire web of the diamond wire 8 moving between the cutting main rollers (31, 32) located above. Furthermore, the wire saw unit further comprises two threading mechanisms 5 corresponding to the first and second tension mechanisms 41 and 42, one end of which is fixedly connected to the first/second tension mechanism of the respective side and the other end of which extends into the cutting area. The threading mechanism 5 is provided with a wire groove 51 capable of freely accommodating a diamond wire. Taking a take-up and pay-off roller as an example, the diamond wire on the take-up and pay-off roller is wound on a tension wheel and then enters a cutting chamber of the slicer through the wire groove 51.

In contrast to the prior art microtome of six-roller construction mentioned in the background section, the wire-laying wheel and reversing wheel are omitted in the structural form of the microtome of the embodiment and the microtome is modified to a two-roller construction. Based on this structure, it is still assumed that the left winding roller is a take-up roller (the right winding roller is a pay-off roller at this time), and the winding path of the slicer is: left winding roller-left tension roller-third main roller-second main roller-first main roller-third main roller (winding to form net for many times), right tension roller-right winding roller, and only two guide wheels pass through the finished winding path. In order to ensure the reliability of the slicer, the functions corresponding to the conventional wire arranging wheel and the reversing wheel still need to be maintained. In the present invention, this is achieved mainly by improving the first/second tension mechanism. The first tension mechanism (hereinafter simply referred to as a tension mechanism) will be described below as an example.

Referring to fig. 3 and 4, fig. 3 is a schematic view showing a structure of a tension mechanism of a microtome according to the related art. Fig. 4 is a schematic view showing the operation principle of a tension mechanism of a microtome according to the related art. As shown in fig. 3 and 4, the tension mechanism of the prior art mainly includes a tension pulley 04 and a driving transmission mechanism thereof, and the driving transmission mechanism mainly includes a tension motor (prior art) 041 and a tension swing rod (prior art) 042 (for convenience of description, reference numerals different from the present invention are used for describing components of the prior art), and the tension motor outputting constant torque can be balanced with an initial tension value of the diamond wire, so that when the tension on the diamond wire changes, the tension change on the diamond wire can be buffered by the left-right swing of the tension swing rod (around the tension swing axis), thereby maintaining the tension on the diamond wire in a relatively stable state. Specifically, during operation of the tension mechanism, the tension motor continuously outputs a constant torque, taking the case of diamond wire winding leftwards, the tension wheel is subjected to a rightward force F (constant torque M/length of the tension swing rod) due to the constant torque M output by the tension motor, and leftward pulling forces (respectively denoted as F1 and F2) are generated on the diamond wire wound around the tension wheel. When the cutting main roller rotation speed is matched with the winding roller rotation speed (balance state), F1, +f2=f, so the tension swing rod cannot swing (is in zero position). When the rotating speed of the cutting main roller is not matched with that of the winding roller, the situation that the resultant force of F1 and F2 is different from F occurs, at the moment, if F1+F2> F, the tension swing rod swings leftwards, and if F1+F2< F, the tension swing rod swings rightwards so as to buffer the tension change of the diamond wire. At the moment, the encoder on the tension motor can capture and recognize the left/right swing gesture of the tension swing rod, and based on the gesture, the tension on the diamond wire can be balanced by adjusting the rotating speed of the winding roller, so that the tension swing rod is restored to the zero position.

Referring primarily to fig. 5 and 6, in one possible embodiment, the tension mechanism mainly includes a tension pulley 61, a tension motor 62 as a driving part, and a connection assembly including a tension swing link 63 as a first connection part and a connection rod 64 as a second connection part, the tension motor 62 is disposed on a motor housing 621, and an adapter plate 622 is mainly used to fix the motor housing or the like to a corresponding moving unit to achieve movement of the tension mechanism or to fix the tension mechanism to a microtome. The adjusting blocks 623 can be four, and are uniformly distributed around the tension motor at the back of the motor base, for example, the installation position of the tension motor in the process of forming the tension mechanism can be adjusted through a jackscrew and other structures. The tension wheel is in driving connection with the tension swing rod, the tension swing rod is in rotating connection with the rotating arm, and the tension wheel is pivoted on the rotating arm, so that the tension wheel can rotate freely relative to the rotating arm and the reciprocating motion of the diamond wire is ensured. In this way, based on the constant torque provided by the tension motor, when the tension of the diamond wire changes, the tension wheel swings around the first axis 671 (called a tension deflection axis), and when the tension wheel is stressed due to the deflection of the diamond wire in the wire groove, the tension wheel drives the rotating arm to rotate around the first axis 672 (called a tension deflection axis) relative to the tension swing rod, so that the friction force generated between the diamond wire and the groove wall of the wire groove of the tension wheel due to the deflection of the diamond wire is reduced through the rotation, and the probability of risks such as abrasion of the diamond wire, the wire falling out of the groove, the wire breakage and the like caused by the friction between the diamond wire and the groove wall of the tension wheel is reduced, and the cutting quality of the slicer is improved. In this example, the tension deflection axis and the tension deflection axis are substantially perpendicular. As with the orientation of fig. 4, the tension deflection axis is located above the tension deflection axis.

Referring primarily to fig. 5-15, in one possible embodiment, the connection assembly includes a tension pendulum 63 as a first connection member and a connecting rod 64 as a second connection member, wherein the tension motor is capable of driving the tension pendulum to oscillate along a first axis, and wherein the deflection movement assembly including the tension pulley and the connecting rod is deflectable along a second axis in the event of an external force applied to the wire groove of the tension pulley by the diamond wire.

In one possible embodiment, the tension swing link 63 mainly comprises a first portion 631 extending substantially vertically and a second portion 632 extending from the first portion, in this example an arc-like structure provided with a guide rail for mating connection with a gearwheel as mentioned below. The upper end of the first portion is provided with mounting holes, keyways, slits, etc. as described below, and the tension pulley is pivotally disposed at the lower end thereof. The second portion of the arcuate structure is formed extending along a substantially central portion thereof. In this example, a mounting hole and a key groove are formed at the upper end of the tension swing link 63 so as to connect the tension swing link with the rotation shaft 647 by means of a key connection. A small gap is formed above the mounting hole and a screw is mounted on the side (in the thickness direction of the gap), so that the reliability of the pivotal connection between the tension swing link and the rotation shaft (at the first mounting hole of the connecting rod described below) can be ensured.

In one possible embodiment, the connection rod 64 is provided with a first mounting hole 641, a second mounting hole 642 as a first mounting location, and a third mounting hole 643 as a second mounting location. In this example, the main structure of the connecting rod is an inclined rod with a corner, such as a weight-reducing groove is formed on the inclined rod to reduce the weight of the connecting rod. The first mounting hole is arranged at the upper end part of the inclined rod, and as mentioned above, the first mounting hole is mainly used for mounting the rotating shaft of the tension swing rod. The second mounting hole is disposed between the lower end of the tilting lever and one end of the corner and is mainly used for mounting the first rotating shaft. The third mounting hole is disposed at the other end of the corner and is mainly used for mounting a second rotating shaft 652, such as the second rotating shaft is disposed on the frame of the slicer, and the second axis is the axis of the second rotating shaft.

It will be appreciated that the specific configuration of the connecting rod and the distribution of the first/second/third mounting holes thereon are only exemplary and may be flexibly adjusted by those skilled in the art according to actual needs.

In one possible embodiment, the tension motor is connected to the tension swing rod through a first rotating shaft, and the tension swing rod can drive the tension wheel to swing around the first axis when the tension of the diamond wire changes based on the constant torque provided by the tension motor. In this example, the first shaft is a universal joint coupling 65, the short shaft 6511 of the universal joint coupling 651 is connected to the tension motor, and the long shaft 6512 is pivotally connected to the aforementioned second mounting hole 642. Therefore, the combination of the short shaft and the long shaft can allow the tension pulley to deflect around the second axis through relative rotation between the short shaft and the long shaft on the premise that constant torque output by the tension motor can be reliably transmitted to the tension pulley, and therefore integrated arrangement of the two rotations is achieved.

In this example, the universal joint coupling mainly includes a short shaft 6511, a long shaft 6512, a pin 6514, a gland 6515, balls 6516, and a PTFE sheet 6517. The fork heads of the long shaft and the short shaft are installed on the pin shaft in a staggered mode, so that the two shafts are not located on the same axis, PTFE sheets, balls and pressing covers are sequentially installed in all directions of the pin shaft, 1/4 circular rollaway nest is configured at each pressing cover and pin shaft end, after the pressing covers and the pin shaft ends are installed, a complete semicircular rollaway nest is formed to enable the balls to roll in the rollaway nest, the PTFE sheets are adhered to the inner walls of the fork heads of the long shaft and the short shaft, and grease sealing of the balls is achieved.

It will be appreciated that the above-described universal joint coupling is merely an exemplary illustration, and that any type of alternative universal joint coupling may be selected by those skilled in the art according to actual needs.

When the diamond wire running at high speed bypasses the tension wheel, the movement direction of the diamond wire can be changed, so that cutting fluid carried on the diamond wire can be thrown out due to the influence of inertia. Therefore, in one possible embodiment, the tension mechanism is provided with a waterproof baffle 6518 as a shielding member at a position corresponding to the joint coupling to prevent the operational reliability of the joint coupling from being affected by the entry of impurities or the like in the cutting fluid into the joint coupling. As in the present example, the waterproof baffle is formed by processing a thin plate, for example, the structure of the waterproof baffle is approximately a bending structure so as to effectively wrap the connecting area of the universal joint coupling corresponding to the long shaft and the short shaft, for example, the waterproof baffle can be arranged on the motor base through fasteners such as screws.

In one possible embodiment, the tension pendulum is provided with a gear set as a transmission mechanism, the universal joint coupling long shaft being connected to the second part of the tension pendulum via the gear set. Therefore, the constant torque output by the tension motor can be transmitted to the tension wheel through the first rotating shaft, the gear set and the tension swing rod. As in the present example, the gear set includes a pinion gear connected to the long shaft of the universal joint coupling and a large gear 6332 provided on the second portion, so that the transmission mechanism is a torque-up gear pair (the number of teeth of the large gear is small, the number of teeth of the pinion gear is large, and the torque output from the tension motor decreases in speed and increases in torque when transmitted to the large gear via the pinion gear). In this example, the large gear and the small gear are sector gears, and the arc structure of the second portion is provided with a guide rail, and the large gear can be arranged on the guide rail in a penetrating manner and fixed on the guide rail.

Illustratively, two arcuate strip-shaped apertures 636 are designed on the bull gear. Therefore, the meshing gap between the two gears can be eliminated through the movement of the large gear on the arc-shaped guide rail, so that the meshing effect of the gear pair is ensured, and the smoothness based on the transmission mechanism is further ensured.

In one possible embodiment, a limiting hole 635 is provided on the tread of the pinion, and by configuring the limiting hole with a limiting structure 634, the rotation range of the pinion can be restrained, so as to define a reasonable swinging space of the tension pulley. In this example, the limiting structure 634 includes a limiting base plate 6341 and an extending portion disposed on the limiting base plate, in this example, the extending portion is a limiting stop lever 6342, the limiting stop lever can extend into the limiting hole and abut against the pinion at two limit positions of the limiting hole along with rotation of the pinion so as to restrict a rotation range of the pinion, the base plate is fixed to a reserved position of the connecting rod, for example, a hole is reserved at a position close to the second mounting hole of the inclined rod of the connecting rod, a limiting connecting hole 6344 is reserved on the base plate, and fixation of the base plate on the connecting rod can be achieved by means of cooperation of fasteners such as screws and the like with the two holes. If two limit connecting holes are reserved on the bottom plate, one is used for realizing the connection between the bottom plate and the connecting plate, and the other is used for setting a limit stop rod.

In one possible embodiment, a limit transition 6343 is provided between the bottom plate and the limit stop lever in order to ensure the strength of the limit structure. If the radial dimension of the limit transition section is larger than that of the limit stop lever, the size of the limit stop lever can be effectively reduced on the premise of ensuring that the limit function is realized, and the strength of the limit structure is improved. In this example, the limit transition is a portion of a cone-like structure (longitudinal section is trapezoidal).

In one possible embodiment, a rotary damper 66 is disposed at an end of the second rotating shaft, specifically, a rotary damper 66 is disposed between the second rotating shaft and a position of the connecting rod corresponding to the third mounting hole to prevent phenomena such as instantaneous rapid rotation of the connecting rod, thereby ensuring the stability of rotation.

In this example, the structure of the rotary damper mainly includes an oil baffle 661, a damper end cap 662, a damper pressure ring 663, a damper rail 664, a damper piston 665, and an O-ring 666 disposed between the damper end cap and the oil baffle.

Wherein, be formed with in the rotary damper and be used for holding the accommodation space that has certain mobility's damping liquid, if can fill damping liquid in this accommodation space through the oiling mouth on the end cover, wherein, fix through a screw between damping piston and the damping guide rail and set up in the both sides of oil baffle. Illustratively, the damping piston is of a structure (e.g., a generally C-shaped structure) having an open end in a circumferential direction, and a plurality of damping bores are provided in the damping piston. Thus, the damping liquid can flow in the accommodating space through the damping hole. The damping guide rail can penetrate through the oil baffle plate and be fixedly connected with the damping piston, so that the damping guide rail and the damping piston can synchronously move on the oil baffle plate. Illustratively, the damper rail includes a rail land disposed on a side of the oil deflector remote from the damper piston and a boss passing through the oil deflector and fixedly coupled to the damper piston (e.g., by a fastener such as a screw).

In this example, the oil baffle is fixedly connected with the second rotating shaft, and the fixedly connected damping guide rail, the damping piston and the connecting rod are fixedly connected. Specifically, a damping compression ring fixedly connected with the oil baffle plate is fixedly connected with the second rotating shaft, and a guide rail connecting disc of the damping guide rail is fixedly connected with the connecting rod.

Based on the above, when the diamond wire deflects on the tension pulley, the tension pulley drives the tension swing rod to rotate around the second axis, and the damping piston also rotates along with the tension swing rod. The damping piston can squeeze damping liquid to flow through the oil resistance hole and other narrow spaces in the rotating process. Due to the viscosity property of the damping liquid, the process can absorb energy generated by the high-frequency low-amplitude shaking impact phenomenon accompanying the diamond wire when the diamond wire is deflected, so that the high-frequency low-amplitude shaking phenomenon of the diamond wire in the process of deflecting is effectively reduced.

The second rotating shaft is provided with the waterproof baffle on one side where the rotary damper is arranged, so that the phenomenon that the use effect of the rotary damper is affected due to the fact that impurities in cutting fluid enter the rotary damper when the cutting fluid carried on the diamond wire is thrown out is avoided.

In order to ensure that the gravity center of a deflection motion assembly (comprising a connecting rod, a gear pair and the like besides the tension pulley) comprising the tension pulley can fall on the tension deflection axis in the process of deflecting the tension pulley on the second axis, thereby avoiding the phenomenon of groove removal and eccentric wear of the diamond wire caused by the gravity center, a counterweight assembly is arranged for the tension mechanism.

In one possible embodiment, the counterweight assembly 7 includes a counterweight support 71 and a first counterweight 721 and a second counterweight 722 disposed on the counterweight support. As in the present example, the counterweight support is provided on the one hand at a position of the connecting rod close to the third mounting hole, and on the other hand has a substantially planar mounting table, on which the first counterweight 721 is provided, and the second counterweight 722 is provided on the first counterweight 721.

In one possible embodiment, the first/second balancing weights are axially movable and/or circumferentially rotatable provided to the first/second balancing weights so as to: the center of gravity of the swing structure including the tension pulley can fall on the second axis by the axial movement and/or rotation of the first/second weight blocks along the first/second weight bars.

Illustratively, the first weight and the second weight are both generally thick cake-like structures and the mounting direction of the two is generally perpendicular. Specifically, the first counterweight rod 731 is a polish rod that is vertically disposed and includes two, the first counterweight rod is movably disposed on the first counterweight rod, and the counterweight mounting block is provided with a telescopic adjusting component (such as an adjusting screw 74) at a position corresponding to the first counterweight rod, so that the first counterweight rod can be pushed to move along the first counterweight rod (in the vertical direction) by making the adjusting screw continuously rise on the basis of abutting the adjusting screw to the lower surface of the first counterweight rod. The second weight bar 732 is a screw or a bar with a threaded section, so that it can be spirally advanced/retreated along the second weight bar (horizontal direction) by rotating the second weight. Based on this, by reasonably adjusting the two balancing weights, it is expected that the center of the entire yaw movement assembly including the tension pulley, the rotating arm, and the bearing housing is located on the tension yaw axis.

It should be understood that the structural form, number, and relative position of the above-mentioned balancing weights on the balancing weight support, the movable form that they can generate, and the structure/mechanism by which they generate the corresponding activities are merely exemplary descriptions, and those skilled in the art can flexibly adjust them according to actual needs, and the first/second balancing weights are illustratively disposed on the mounting table of the balancing weight support directly, the balancing weights are in special-shaped structures, and the balancing weights include more than two balancing weights.

Further, in this example, in order to reduce the weight of the weight bracket, the weight bracket itself is prevented from affecting the center of gravity of the yaw movement assembly including the tension pulley, for example, the weight bracket may be subjected to a weight reduction process such as machining the weight reduction groove 711 (or partial thinning). And the tension swing rod, the connecting rod and the like can also be subjected to weight reduction treatment so as to reduce the moment of inertia of the corresponding parts when rotation occurs.

Based on the above structure, the structural combination related to the first axis in the tension mechanism can be called as a deflection movement assembly, and the deflection movement assembly is mainly responsible for buffering tension change on the diamond wire based on constant torque output by the tension motor. The function of the yaw movement assembly will be described with reference to fig. 16 to 18.

Referring to fig. 16, when the rotational speed of the main roller of the cutting mechanism of the slicer is matched with the rotational speed of the take-up and pay-off roller, the base of the tension swing link is approximately in the vertical direction, and the tension pulley is at the ideal position. Referring to fig. 17, when a moment generated by the tension of the diamond wire is greater than the torque of the tension motor, the diamond wire pulls the tension swing link to swing toward the diamond wire, thereby reducing the tension on the diamond wire by such a swing tendency. Specifically, in an ideal state, the tension on the diamond wire is constant, and the deflection movement assembly is in a relatively balanced state, so that the tension swing rod cannot swing left and right around the tension deflection axis. As shown in fig. 18, when the torque generated by the tension of the diamond wire is smaller than the torque of the tension motor, the tension motor drives the tension swing rod to swing and rotate towards the direction away from the diamond wire, so that the tension on the diamond wire is increased through the swing trend. Specifically, under the working conditions of diamond wire cutting or high-speed wire running, the tension on the diamond wire changes at any time due to the influence of factors such as servo errors, inertia of the guide wheel, uneven winding and unwinding, resistance of the guide wheel and the like, and in the process, the deflection movement assembly plays a role of absorbing tension fluctuation, for example, when the tension on the diamond wire is larger than the set tension, the deflection movement assembly is pulled, namely, the tension swing rod is pulled, so that the tension swing rod swings around the tension deflection axis towards the direction close to the main roller of the cutting mechanism, the degree of 'stretching' of the diamond wire is relieved through the swinging, and the tension increasing trend on the diamond wire is reduced. When the tension on the diamond wire is smaller than the set tension, the tension swing rod swing arm swings towards the direction away from the main roller of the cutting mechanism under the drive of the constant torque output by the tension motor, and the diamond wire can be stretched tightly by the swing, so that the tension defect on the diamond wire is compensated. By this circulation, the tension on the diamond wire can be ensured to be kept in a stable range.

In a word, based on the deflection movement assembly, the control method of the slicing machine only needs to enable the tension motor to output constant torque, and on the basis, tension on the diamond wire can be kept in a stable range.

Based on the above structure, the combination of the structures related to the second axis in the tension mechanism can be called a deflection movement assembly, and the deflection movement assembly is mainly used for counteracting the deflection phenomenon generated by the deflection movement of the diamond wire and the related structures along the second axis to a certain extent in the case that the diamond wire deflects in the wire groove of the tension wheel, and therefore reducing or avoiding the wire breakage risk caused by friction between the diamond wheel and the wire groove of the tension wheel. The function of the yaw movement assembly is described below with reference to fig. 19 to 20.

Referring to fig. 19, in an ideal state that the diamond wire entering (or leaving) the wire groove of the tension pulley 61 is not deflected, the diamond wire entering the wire groove of the tension pulley from the take-up and pay-off roller 211 (exemplified by the first take-up and pay-off mechanism) is distributed in a vertical direction, and the diamond wire is in a plane in which the wire groove is located. Referring to fig. 20, in the case that the wire entering (or leaving) the wire groove of the tension pulley 61 is deflected (the wire deviates from the plane in which the center of the wire groove of the tension pulley is located), the tension pulley is stressed by the deflection of the wire and thus the tension pulley (and the connecting rod) is deflected by a certain amount about the first rotation axis, based on which the degree of wear between the wire and the wire groove of the tension pulley is reduced and thus the probability of wire breakage or the like is reduced. In the present invention, however, the universal joint coupling allows the relative short axis of the long axis to occur due to the configuration of the universal joint coupling, and a certain amount of rotation is exactly adapted to the deflection movement of the tension wheel about the second axis of rotation. In addition, the phenomenon that the diamond wire is separated from the wire groove can be effectively avoided based on the deflection. Meanwhile, in the case where the deflection phenomenon has occurred, the deflection degree may be determined by detecting means such as the ranging sensor 10, for example, by measuring the distance (b-a) between the ranging sensor and the first portion of the tension swing link, for example, the deflection degree may be described by the angle and direction of deflection. The distance measured by the distance measuring sensor is a as in the normal state, wherein a is allowed to have a small range of variation. Based on this, the tension pulley is corrected to the ideal position shown in fig. 19 by corresponding correction measures (e.g., by adjusting the winding and unwinding roller in its axial direction, etc.).

In summary, based on the deflection movement assembly, the tension wheel can be allowed to deflect around the second axis under the condition that the diamond wire has deflection problem, and the tension wheel can be positioned at an ideal position through corresponding deviation rectifying measures. In addition, by configuring the counterweight assembly for the deflection movement assembly, the control method of the slicing machine can enable the gravity center of the structure deflected together with the tension wheel to fall on the second axis by enabling the first counterweight to move vertically and/or enabling the second counterweight to move spirally in the transverse direction.

It can be seen that, in the tension mechanism of the present invention, by configuring the tension mechanism with the first mechanism capable of achieving its swinging about the first axis and the second mechanism capable of achieving its deflection about the second axis, it is expected that the operational reliability and cutting quality of the slicer are ensured by only the combination of the take-up and pay-off mechanism, the tension mechanism and the cutting mechanism on the basis of omitting the traverse wheel and the reversing wheel in the conventional slicer of six-guide wheel structure. And the first mechanism and the second mechanism are integrated and arranged to a certain extent by means of the universal joint coupling, so that the structural compactness of the tension mechanism is improved.

Thus far, the technical solution of the present invention 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 invention 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 invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims

1. A tension mechanism, the tension mechanism comprising:

The tension wheel is provided with a tension wheel,

A first mechanism through which the tension wheel is capable of producing movement about a first axis based at least on torque provided by the drive member; and

A second mechanism through which at least the tension pulley is movable about a second axis under the influence of an external force;

wherein the first mechanism and the second mechanism are integrated to at least a certain extent; wherein the first axis and the second axis are not coplanar and have an included angle therebetween.

2. The tension mechanism of claim 1, wherein the first mechanism comprises:

the tension wheel is arranged on the connecting assembly; and

And the first rotating shaft is connected with the power output shaft of the driving part and can drive the tension wheel to move around the first axis based on the torque provided by the driving part.

3. A tension assembly as recited in claim 3 wherein the connection assembly comprises:

A first connecting part, on which the tension wheel is arranged, the first connecting part is pivoted to form the tension mechanism,

Wherein the first rotating shaft is connected with the first connecting part through a transmission mechanism.

4. A tensioning mechanism according to claim 3, wherein the transmission mechanism comprises a gear pair.

5. The tension mechanism as recited in claim 4, wherein the gear pair comprises a first gear coupled to a first shaft and a second gear coupled to the first coupling member,

Wherein the pitch circle diameter of the first gear is smaller than the pitch circle diameter of the second gear; and/or

The first gear and/or the second gear is a sector gear.

6. The tension mechanism of claim 5, wherein the first connecting member comprises:

A first portion on which the tension pulley is pivotally disposed and which constitutes the tension mechanism in a pivotally disposed manner; and

The second part is arranged on the first part in a fixed connection or integrated molding mode, and the second gear is arranged on the second part.

7. The tension mechanism of claim 6, wherein the second portion comprises an arcuate structure that mates with the second gear.

8. The tension mechanism of claim 7, wherein the arcuate structure is provided with an adjustment structure to:

The position of the second gear on the arc-shaped structure is adjusted through an adjusting structure, so that the meshing gap between the second gear and the first gear is adjusted.

9. The tension mechanism as recited in any one of claims 3 to 8 wherein the connection assembly comprises a second connection member,

The second connecting part is provided with a first installation position, and the first rotating shaft is pivoted at the first installation position; and/or

The first connecting part is pivoted to the second connecting part.

10. The tensioning mechanism of claim 9, wherein the second mechanism comprises a second shaft pivotally connected to the second connecting member.

11. The tension mechanism of claim 10, wherein the second connecting member has a second mounting location, the second pivot being pivotally disposed to the second connecting member.

12. The tension mechanism of claim 11, wherein the second connecting member is configured with a rotational damper between a position corresponding to the second mounting location and the second rotational shaft.

13. The tension mechanism of claim 10, wherein the first shaft comprises a first sub-shaft and a second sub-shaft, and wherein a universal drive mechanism is disposed between the first sub-shaft and the second sub-shaft.

14. The tension mechanism of claim 13, wherein the first sub-shaft, the second sub-shaft, and the universal drive mechanism form a universal joint coupling.

15. A tension mechanism as recited in claim 13, wherein the tension mechanism is provided with a shutter member at a position corresponding to the universal drive mechanism.

16. The tension mechanism of claim 11, wherein the second connecting member is configured with a weight assembly.

17. The tension mechanism of claim 16, wherein at least a portion of the weight assembly is a moveable structure.

18. The tension mechanism of claim 17, wherein the weight assembly comprises:

The counterweight block is arranged on the counterweight rod, and the counterweight rod is arranged on the second connecting component in a direct or indirect mode;

wherein the balancing weight can move along the axial direction of the balancing weight rod and/or around the circumferential direction of the balancing weight rod.

19. The tension mechanism of claim 18, wherein the weight assembly comprises:

An adjusting member capable of applying an external force to the weight lever so as to:

the balancing weight moves along the axial direction of the balancing weight rod under the action of the external force.

20. The tension mechanism of claim 19, wherein the weight bar comprises one or more of; and/or

The adjusting component is an adjusting screw.

21. The tension mechanism of claim 18, wherein the weight is helically movable along the weight rod.

22. The tensioning mechanism of claim 18, wherein the weight comprises at least one of,

Wherein, in the case that the balancing weight includes a plurality of balancing weights, the installation directions of the balancing weight bars corresponding to a plurality of balancing weights are the same or different and/or the balancing weights are directly or indirectly disposed at the second connection part through the balancing weight bars.

23. The tension mechanism of claim 22, wherein the weight comprises a first weight and a second weight, the first weight being disposed on the second connecting member by a weight rod, the second weight being disposed on the first weight by a weight rod,

And an included angle is formed between the counter weight rods corresponding to the first counter weight block and the second counter weight block.

24. A tensioning mechanism as claimed in any one of claims 17 to 23 wherein the second connection member or structure moving with the second connection member is provided with a counterweight mounting base to which the counterweight assembly is provided.

25. A tensioning mechanism according to claim 1, wherein the tensioning wheel has a wire slot around which a cutting wire can be wound, the second axis lying in the plane of the wire slot or the second axis being parallel to the plane of the wire slot.

26. The tension mechanism of claim 1, wherein the first axis and the second axis are perpendicular to each other.

27. A wire saw unit, characterized in that it comprises the tension mechanism according to any one of claims 1 to 26.

28. The wire saw unit of claim 27, wherein the wire saw unit comprises a wire take-up and pay-off mechanism and a cutting mechanism, the tension mechanism being disposed between the wire take-up and pay-off mechanism and the cutting mechanism.

29. The wire saw unit according to claim 28, wherein the tension pulley has a wire groove around which a cutting wire can be wound, a threading mechanism is provided between the cutting mechanism and the tension mechanism,

Wherein, in the event that no string deflection occurs, the second axis is parallel to a string located between the wire groove and the threading mechanism.

30. A wire cutting machine, characterized in that it comprises the tension mechanism of any one of claims 1 to 26; or alternatively

The wire cutting machine comprises the wire saw unit according to any one of claims 27 to 29.

31. The wire cutting machine of claim 30, wherein the wire cutting machine is a microtome.

32. A control method of a wire cutting machine is characterized in that the wire cutting machine comprises a tension mechanism, the tension mechanism comprises a driving part, a tension wheel, a first mechanism and a second mechanism,

The control method comprises the following steps:

Operating the drive member such that the tension wheel is capable of producing movement about a first axis via the first mechanism based at least on torque provided by the drive member; and

Allowing at least the tension pulley to move about a second axis via the second mechanism under the influence of an external force;

wherein the first mechanism and the second mechanism are integrated to at least a certain extent;

wherein the first axis and the second axis are not coplanar and have an included angle therebetween.

33. The control method of claim 32, wherein the first mechanism comprises a connection assembly and a first shaft,

Said "operating said drive member such that said tension wheel is capable of producing movement about a first axis via said first mechanism based at least on torque provided by said drive member" comprises:

The driving part is enabled to operate, and the tension wheel arranged on the connecting assembly moves around a first axis through the first rotating shaft.

34. The control method of claim 33, wherein the connection assembly comprises a first connection member,

The "making the driving part operate, the tension wheel disposed on the connection assembly moves around the first axis through the first rotating shaft" includes:

The driving part is enabled to operate, and the tension wheel arranged on the first connecting part moves around a first axis through the first rotating shaft and the transmission mechanism.

35. The control method of claim 34, wherein the transmission mechanism comprises a gear pair,

The "make the drive part move, the drive part passes through the first pivot the drive mechanism drive set up in the tension pulley of coupling assembling moves around the first axis" includes:

The driving part is driven to operate, and the driving part drives the tension wheel arranged on the first connecting part to move around the first axis through driving the first rotating shaft to rotate and the gear in the gear pair to be meshed and transmitted.

36. The control method of claim 34 or 35, wherein the connection assembly includes a second connection member having a first mounting location,

The "making the driving part operate, the tension wheel provided on the first connecting part moves around the first axis through the first rotating shaft and the transmission mechanism" includes:

The driving part is enabled to operate, the tension wheel arranged on the first connecting part rotates in the first installation position through the first rotating shaft, and the transmission mechanism moves around the first axis.

37. The control method of claim 36, wherein the first shaft comprises a first sub-shaft and a second sub-shaft, a universal transmission mechanism is arranged between the first sub-shaft and the second sub-shaft,

The second mechanism comprises a second rotating shaft which is pivotally connected with the second connecting component,

Said "operating said drive member so that said tension wheel is capable of producing movement about a first axis through said first mechanism based at least on torque provided by said drive member; and at least allowing the tension wheel to move about a second axis via the second mechanism under an external force comprises:

By means of the rotation between the first and second sub-shafts, at least the tension pulley is allowed to move about the second axis by means of a pivoting movement of the second spindle on the second connecting part under the force exerted on the wire grooves of the tension pulley about the cutting wire provided to the cutting wheel.

38. The control method of claim 37, wherein the second connection member has a second mounting location,

The "allowing at least the tension pulley to move about the second axis by the pivotal movement of the second rotary shaft on the second connecting member" includes:

At least the tension pulley is allowed to move about the second axis by a pivoting movement of the second spindle at the second mounting location of the second connection part.

39. The control method according to claim 37 or 38, wherein the second connecting member is provided with a counterweight assembly,

In the case of "allowing at least the tension pulley to move about the second axis by means of a pivoting movement of the second spindle on the second connecting member by means of a rotation between the first sub-spindle and the second sub-spindle under the force exerted by the wire groove of the tension pulley about the cutting wire provided on the cutting wheel", the control method comprises:

adjusting weight parameters of the weight assembly to:

The center of gravity of the structure rotating about the second axis is at the second axis.

40. The control method of claim 39, wherein the weight assembly comprises a weight and a weight rod,

The "adjusting the weight parameters of the weight assembly" includes:

The balancing weight is moved along the axial direction of the balancing weight rod and/or around the circumferential direction of the balancing weight rod.

41. The control method of claim 40, wherein the weight assembly includes an adjustment member,

Said "moving said weight in an axial direction of said weight and/or in a circumferential direction around said weight" includes:

Enabling the adjustment member to apply an external force to the weight bar so as to:

42. The control method of claim 40, wherein said moving said weight in an axial direction of said weight and/or in a circumferential direction around said weight comprises:

and enabling the balancing weight to move spirally along the balancing weight rod.

43. A computer readable storage medium comprising a memory adapted to store a plurality of program codes, characterized in that the program codes are adapted to be loaded and executed by a processor to perform the control method of the wire cutting machine of any one of claims 32 to 42.

44. A computer device comprising a memory and a processor, the memory being adapted to store a plurality of program codes, characterized in that the program codes are adapted to be loaded and run by the processor to perform the control method of the wire cutting machine of any one of claims 32 to 42.