CN219748559U - Positioning device for staggered groove arrangement of diamond wire mesh - Google Patents

Abstract

The utility model provides a positioning device for staggered groove arrangement of a diamond wire net, which comprises a base and at least two distance detection mechanisms, wherein the base is provided with a plurality of grooves; the base is used for being detachably arranged on the side wall of the slicing machine and comprises a reference surface which is perpendicular to the axial directions of the two main rollers in the slicing machine; each distance detection mechanism is arranged at different positions of the base, and at least two distance detection mechanisms are used for respectively measuring the distance between different positions of the diamond wire wound from one main roller to the other main roller and the reference surface. The positioning device for the diamond wire mesh staggered groove arrangement provided by the embodiment of the utility model can conveniently judge whether the staggered groove arrangement of the diamond wire mesh meets the preset standard, and can effectively solve the problem that the diamond wire mesh staggered groove positioning in the slicing machine cannot be performed efficiently in the prior art.

Description

Positioning device for staggered groove arrangement of diamond wire mesh

Technical Field

The utility model relates to the technical field of photovoltaic module production, in particular to a positioning device for staggered groove arrangement of diamond wire nets.

Background

In the production process of the solar cell, the crystal bar is required to be cut into silicon chips by a diamond wire slicing machine.

The diamond wire slicing machine is provided with two main rollers which are arranged in parallel, grooves are engraved on the main rollers, and diamond wires are wound and distributed on the two main rollers in a staggered and threaded mode according to the groove type, so that diamond wire twisting and cutting force are increased, wire mesh stability, cutting efficiency and sheet discharging rate are improved, and therefore the staggered groove arrangement of the diamond wires on the main rollers needs to be accurately controlled.

In the prior art, wiring net steel plate ruler or groove counting mode is adopted to position the diamond wire in a staggered way. However, the above method is time-consuming and labor-consuming, and can not accurately perform staggered positioning, which easily causes large fluctuation of thickness deviation (total thickness variation, TTV) of cut silicon wafers and high line breakage frequency, resulting in production loss.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a positioning device for staggered groove arrangement of diamond wire meshes, which aims to solve the problem that the staggered groove positioning of diamond wires in a slicing machine cannot be performed efficiently in the prior art.

In order to solve the problems, the utility model is realized by the following technical scheme:

the utility model provides a positioning device for staggered groove arrangement of a diamond wire net, which comprises a base and at least two distance detection mechanisms, wherein the base is provided with a plurality of grooves; the base is used for being detachably arranged on the side wall of the slicing machine and comprises a reference surface which is perpendicular to the axial directions of the two main rollers in the slicing machine; each distance detection mechanism is arranged at different positions of the base, and at least two distance detection mechanisms are used for respectively measuring the distance between different positions of the diamond wire wound from one main roller to the other main roller and the reference surface.

Optionally, in the positioning device, the distance detecting mechanism includes a telescopic rod disposed on the base and perpendicular to the reference plane, a distance between at least two telescopic rods is smaller than or equal to a distance between two main rollers on the microtome, each telescopic rod can be abutted to a first diamond wire on one side of the two main rollers, which is close to the side wall, through telescoping, and a distance between the diamond wire and the reference plane is determined.

Optionally, in the positioning device, the distance detection mechanism further includes a distance display module, where the distance display module is configured to determine a distance between the diamond wire and the reference plane according to the extended position of the telescopic rod, and display the distance.

Optionally, in the positioning device, a scale mark is provided on the surface of the telescopic rod, and the scale mark is used for indicating the extending distance of the telescopic rod, so as to determine the distance between the diamond line and the reference plane.

Optionally, in the positioning device, a contact sensing head is disposed at the top of the telescopic rod, the telescopic rod is abutted to the diamond wire through the contact sensing head, and the distance between the diamond wire and the reference plane is determined.

Optionally, in the positioning device, the contact sensing head is rod-shaped, and the contact sensing head is vertically arranged at the top of the telescopic rod and is used for vertically abutting against the diamond wire.

Optionally, in the positioning device, the telescopic rod is rotatably disposed on the base.

Optionally, in the positioning device, the distance detecting mechanism further includes a first motor and a second motor disposed in the base, an output end of the first motor and an output end of the second motor are in transmission with the telescopic rod, the first motor is used for driving the telescopic rod to stretch out and draw back, and the second motor is used for driving the telescopic rod to rotate.

Optionally, in the positioning device, the device further includes a horizontal detection module and a vertical detection module, wherein the horizontal detection module is used for detecting and displaying whether the telescopic rod is in a horizontal state, and the vertical detection module is used for detecting and displaying whether the reference plane is vertical to the axial direction of the main roller.

Optionally, in the positioning device, the device further includes a third motor disposed at the bottom of the base, where the third motor is configured to perform posture adjustment on the base according to a detection result of the horizontal detection module and the vertical detection module, so that the telescopic rod is in a horizontal state, and the reference plane is axially perpendicular to the main roller.

Optionally, in the positioning device, at least two distance detecting mechanisms include two telescopic rods respectively disposed at two ends of the base.

Optionally, in the positioning device, the base is an adsorption base.

Optionally, in the positioning device, the base is a magnetic base.

Compared with the prior art, the utility model has the following advantages:

the positioning device for the staggered groove arrangement of the diamond wire mesh comprises a base and at least two distance detection mechanisms; the base is used for being detachably arranged on the side wall of the slicing machine and comprises a reference surface which is axially perpendicular to the two main rollers in the slicing machine; each distance detection mechanism is arranged at different positions of the base, and at least two distance detection mechanisms are used for respectively measuring the distance between different positions of the diamond wire wound from one main roller to the other main roller and the reference surface; the distance detection mechanism is used for measuring the distance between different positions of diamond wires wound from one main roller to the other main roller and the reference surface, whether the staggered groove arrangement of the diamond wire net meets the preset standard can be judged conveniently, and the problem that the staggered groove positioning of the diamond wire in the slicing machine cannot be effectively solved in the prior art.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

Drawings

FIG. 1 is a schematic view of a first angle of a positioning device for positioning measurement according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a second angle of the positioning device for positioning measurement according to the embodiment of the present utility model;

FIG. 3 is a schematic view of a third angle of the positioning device for positioning measurement according to the embodiment of the present utility model;

FIG. 4 is an enlarged view of portion A of FIG. 3 in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic diagram showing the positional relationship between a contact sensor and a diamond wire in an embodiment of the present utility model _。

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the production process of the solar cell, the crystal bar is required to be cut into silicon chips by a diamond wire slicing machine. The existing diamond wire slicing machine is provided with two main rollers which are installed in parallel, a wire groove is carved on each main roller, and diamond wires are wound and distributed on the two main rollers in a staggered and threaded mode according to the grooves, so that the twisting and cutting force of the diamond wires are increased, and the stability, the cutting efficiency and the sheet discharging rate of a wire net are improved.

Due to the model difference and the machine precision error, the staggered groove arrangement of the diamond wire on the main roller needs to be measured after a new main roller is on machine. In the prior art, the wiring net steel plate ruler or the groove counting mode is adopted to carry out groove staggering positioning measurement on the diamond wire, and the mode needs to carry out manual repeated measurement through more than two datum points, so that the method is time-consuming and labor-consuming, and can not accurately misplace, and the silicon wafer thickness deviation can be easily cut, the fluctuation is large, the line breakage frequency is high, and further the production loss is caused.

In order to solve the above problems, the positioning device 100 provided by the embodiment of the utility model, as shown in fig. 1 to 5, comprises a base 10 and at least two distance detection mechanisms 20; the base 10 is configured to be detachably mounted on the side wall 30 of the slicer, and the base 10 includes a reference surface 11, where the reference surface 11 is axially perpendicular to two main rollers 40 in the slicer; each distance detecting mechanism 20 is disposed at a different position of the base 10, and at least two distance detecting mechanisms 20 are used for respectively measuring the distance between the different positions of the diamond wire 41 wound from one main roller 40 to the other main roller 40 and the reference surface 11.

Wherein, the diamond wire 41 is used for keeping a tensioning state under the action of the main roller 40 and cutting the crystal bar into silicon wafers; the two main rollers 40 are arranged in parallel, and the main rollers 40 are used for winding the diamond wire 41 in a threaded manner so as to form a diamond wire 41 net; the reference surface 11 is a plane, the reference surface 11 is perpendicular to the axial directions of the two main rollers 40 in the slicing machine, if the diamond wire 41 is wound to the other main roller 40 by the staggered grooves of the one main roller 40, the distance between the different positions of the diamond wire 41 and the reference surface 11 is different, and the distance change is positively related to the measured positions and the staggered groove number, that is, the more the staggered grooves are, the more the measured positions are far apart, the larger the distance change is, so that the distance between the different positions of the diamond wire 41 and the reference surface 11 can be measured respectively by the at least two distance detection mechanisms 20 at the different positions on the base 10, the distance change between the diamond wire 41 and the reference surface 11 can be determined, and further, whether the staggered groove arrangement of the diamond wire 41 meets the preset standard is judged, thereby realizing the efficient staggered groove positioning of the diamond wire 41 in the slicing machine.

Wherein the side wall 30 is perpendicular to the axial direction of the two main rollers 40. Optionally, the reference surface 11 is a side surface of the base 10 facing the diamond wire 41, so that when the base 10 is mounted on the side wall 30 of the slicer, the reference surface 11 can be axially perpendicular to the two main rollers 40 in the slicer, so that each distance measuring mechanism can measure the distance change of the diamond wire 41 with the same reference, and accurate staggered groove arrangement of the diamond wire 41 is realized.

Alternatively, in one embodiment, the distance detecting means 20 includes a telescopic rod 21 provided on the base 10 and perpendicular to the reference surface 11, a distance between at least two telescopic rods 21 is equal to or less than a distance between two main rollers 40 on the slicer, and each telescopic rod 21 is configured to be capable of determining a distance between the diamond wire 41 and the reference surface 11 by being telescopic to be in contact with a first diamond wire 41 on a side of the two main rollers 40 close to the side wall 30.

In the above embodiment, the telescopic rod 21 is vertically provided on the reference surface 11, and the reference surface 11 is axially perpendicular to the main roller 40, and thus the telescopic rod 21 and the main roller 40 are parallel to each other, and when the telescopic rod 21 is extended and contracted to come into contact with the first diamond wire 41 on the side of the two main rollers 40 close to the side wall 30, the distance between the diamond wire 41 and the reference surface 11 can be determined according to the extension and contraction distance of the telescopic rod 21.

In the above embodiment, at least two telescopic rods 21 are at a distance smaller than or equal to the distance between two parallel main rollers 40, so that when the diamond wire 41 is arranged in a staggered manner between the two main rollers 40, the positioning device provided by the embodiment of the utility model can always measure the change of the distance between the diamond wire 41 and the reference surface 11, thereby checking whether the staggered manner is reasonable.

Optionally, in the positioning device, at least two of the distance detecting mechanisms 20 include two telescopic rods 21 respectively disposed at two ends of the base 10. The positioning device provided by the embodiment of the utility model comprises two telescopic rods 21, wherein the two telescopic rods 21 are respectively arranged at two ends of the base 10, and the distance between the two telescopic rods 21 is equal to the distance between the two main rollers 40, so that the distance measured by the telescopic rods 21 is just the distance between the positions of the diamond wires 41 and the reference surface 11 at each main roller 40, and the number of misplaced grooves of the diamond wires 41 between the two main rollers 40 can be more conveniently judged.

In practical use, the distance between the zero position of each telescopic rod 21 and the reference surface 11 is the same, and before the measurement, each telescopic rod 21 is in the zero position state.

Optionally, in an embodiment, the distance detecting mechanism 20 further includes a distance display module 22, where the distance display module 22 is configured to determine a distance between the diamond wire 41 and the reference surface 11 according to the extended position of the telescopic rod 21 and display the distance, so as to facilitate a detecting person to know a misplaced state of the diamond wire 41 between the two main rollers 40.

Optionally, in a specific embodiment, the surface of the telescopic rod 21 is provided with graduation marks for indicating the extension distance of the telescopic rod 21, so as to determine the distance between the diamond wire 41 and the reference surface 11. In this embodiment, since the scale marks are provided on the telescopic rod 21, when the telescopic rod 21 is extended and contracted to come into contact with the first diamond wire 41, the distance between the reference surface 11 and the diamond wire 41 at that position can be obtained directly from the scale marks on the telescopic rod 21.

In this embodiment, the distance display module 22 may be transparent glass for displaying the graduation marks.

Alternatively, in one embodiment, a contact sensing head 23 is provided on the top of the telescopic rod 21, and the telescopic rod 21 is abutted against the diamond wire 41 by the contact sensing head 23 to determine the distance between the diamond wire 41 and the reference surface 11. By arranging the contact sensing head 23 at the top of the telescopic rod 21, whether the wire mesh is contacted with the diamond wire 41 or not can be automatically sensed, the telescopic rod 21 is controlled to stop stretching after the wire mesh is contacted with the outer wall of the first diamond wire 41 on the main roller 40 towards one side of the base 10, and then the stretching length of the telescopic rod 21 is measured, so that the distance between the reference surface 11 and the current position of the diamond wire 41 is determined.

Alternatively, in one embodiment, the contact sensing head 23 is vertically disposed on the top of the telescopic rod 21 and is used to vertically abut against the diamond wire 41. By vertically arranging the rod-shaped contact sensing head 23 at the top of the telescopic rod 21 and vertically arranging the contact sensing head and the diamond wire 41, the contact range between the contact sensing head 23 and the diamond wire 41 can be effectively increased, and the problem that the contact sensing head 23 cannot be abutted with the diamond wire 41 and the distance measurement cannot be completed due to improper installation position of the base 10 is avoided.

Alternatively, the telescopic rod 21 is rotatably disposed on the base 10, and the positional relationship between the contact sensing head 23 and the diamond wire 41 can be adjusted by turning the telescopic rod 21, so that the contact sensing head 23 can be abutted against the diamond wire 41 in a larger contact range.

Optionally, in a specific embodiment of the positioning device provided by the embodiment of the present utility model, the distance detecting mechanism 20 further includes a first motor (not shown) and a second motor (not shown) disposed in the base 10, an output end of the first motor and an output end of the second motor are driven by the telescopic rod 21, the first motor is used for driving the telescopic rod 21 to stretch and retract, and the second motor is used for driving the telescopic rod 21 to rotate. In the specific embodiment, the telescopic rod 21 is driven to stretch and retract by the first motor, so that the contact induction head 23 is driven to be close to the diamond wire 41 or far from the diamond wire 41; the telescopic rod 21 is driven to rotate by the second motor, the contact induction head 23 is driven to rotate, and the included angle between the contact induction head and the diamond wire 41 is adjusted, so that the contact induction head can be abutted with the diamond wire 41 in a better posture.

In practical application, after the base 10 is mounted on the side wall 30, each first motor drives the corresponding telescopic rod 21 to automatically return to zero, after the telescopic rod 21 returns to zero, each second motor drives the corresponding contact induction head 23 to automatically adjust to the position above the wire mesh side, that is, to be perpendicular to the wire mesh side, and then each first motor drives the corresponding telescopic rod 21 to extend until the contact induction head 23 contacts with the diamond wire 41 to stop and perform distance measurement.

Optionally, in an embodiment, the positioning device provided by the embodiment of the present utility model further includes a horizontal detection module 12 and a vertical detection module 13 disposed in the base 10, where the horizontal detection module 12 is configured to detect and display whether the telescopic rod 21 is in a horizontal state, and the vertical detection module 13 is configured to detect and display whether the reference plane 11 is perpendicular to the main roller 40 in an axial direction. The level detection module 12 may be a level meter.

In the above embodiment, by setting the horizontal detection module 12 and the vertical detection module 13, a measurer can quickly know whether the installation position of the detection device is correct and reasonable, and timely adjust the installation position when the installation position is unreasonable, so as to avoid measurement errors caused by improper positions.

Optionally, in an implementation manner, the positioning device provided by the embodiment of the present utility model further includes a third motor 14 disposed at the bottom of the base 10, where the third motor 14 is configured to adjust the posture of the base 10 according to the detection results of the horizontal detection module 12 and the vertical detection module 13, so that the telescopic rod 21 is in a horizontal state, and the reference plane 11 is axially perpendicular to the main roller 40.

In the embodiment of the utility model, because the reference surface 11 needs to be in a perpendicular state to the axial direction of the main roller 40, the measured distance between the diamond wire 41 and the reference surface 11 has a reference meaning for judging whether the staggered groove arrangement of the diamond wire 41 is reasonable or not; the obtained distance between the horizontal position of the telescopic rod 21 can be directly used as the actual distance between the diamond wire 41 and the reference surface 11, so that the detection results of the horizontal detection module 12 and the vertical detection module 13 are obtained, whether the reference surface 11 is axially vertical to the main roller 40 or not is judged, and when the detection results are not satisfied, the telescopic rod 21 is horizontally positioned, the third motor 14 is controlled to perform posture adjustment on the base 10 so that the telescopic rod 21 is horizontally positioned, and the reference surface 11 is axially vertical to the main roller 40.

In the above embodiment, the third motor 14 is an automatic induction adjusting motor, and can obtain the detection results of the horizontal detection module 12 and the vertical detection module 13, and automatically operate according to the detection results, so as to adjust the base 10 to a posture in which the telescopic rod 21 is horizontal and the reference surface 11 is vertical to the main roller 40 in the axial direction.

In the embodiment of the utility model, the base 10 needs to be installed on the side wall 30 of the slicer through the same datum point, and each distance detection mechanism 20 is located in the middle of the projection range of the two main rollers 40 on the side wall 30, so that the distance detection mechanism 20 can effectively measure the change of the distance between the diamond wire 41 and the datum plane 11, thereby checking whether the staggered groove arrangement is reasonable.

In practical application, after the base 10 is mounted on the side wall 30, the state information of the detecting devices of the horizontal detecting module 12 and the vertical detecting module 13 is passed, and then the base 10 is adjusted to a posture that the telescopic rod 21 is horizontal and the reference surface 11 is vertical to the main roller 40 axially by the third motor 14; and then the corresponding telescopic rods 21 are automatically zeroed by each first motor drive, after the telescopic rods 21 are zeroed, the corresponding contact induction heads 23 of each second motor drive are automatically adjusted to be above the side surface of the wire mesh, and then the corresponding telescopic rods 21 of each first motor drive are stretched out until the contact induction heads 23 are contacted with the diamond wires 41 and then stopped for distance measurement.

Optionally, in one embodiment, in the positioning device provided by the embodiment of the present utility model, the base 10 is an adsorption type base, that is, the base 10 is mounted on the side wall 30 of the slicer by adsorption, so as to facilitate rapid mounting and dismounting. Alternatively, the base 10 is a magnetically attractable base 10 adapted to be mounted to a non-smooth slicer side wall 30.

To sum up, in this embodiment, the positioning device for diamond wire mesh staggered groove arrangement includes a base and at least two distance detection mechanisms; the base is used for being detachably arranged on the side wall of the slicing machine and comprises a reference surface which is axially perpendicular to the two main rollers in the slicing machine; each distance detection mechanism is arranged at different positions of the base, and at least two distance detection mechanisms are used for respectively measuring the distance between different positions of the diamond wire wound from one main roller to the other main roller and the reference surface; wherein, through setting up the base that is used for detachably to install on the slicer lateral wall, and this base have with two home rolls axial vertically datum plane in the slicer to set up two at least distance detection mechanism on this base, and utilize above-mentioned distance detection mechanism to measure by a home roll around the distance between different positions of the buddha's warrior attendant line of another home roll and the datum plane, can conveniently judge the mistake groove arrangement of buddha's warrior attendant line and whether satisfy the default standard, can effectively solve the unable high-efficient problem of carrying out mistake groove location to buddha's warrior attendant line 1 in the slicer of prior art.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

While alternative embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in an article or terminal device comprising the element.

While the foregoing has been described in some detail by way of illustration of the principles and embodiments of the utility model, and while in accordance with the principles and implementations of the utility model, those skilled in the art will readily recognize that the utility model is not limited thereto.

Claims (10)

1. The positioning device for staggered groove arrangement of the diamond wire mesh is characterized by comprising a base and at least two distance detection mechanisms; the base is used for being detachably arranged on the side wall of the slicing machine and comprises a reference surface which is perpendicular to the axial directions of the two main rollers in the slicing machine; each distance detection mechanism is arranged at different positions of the base, and at least two distance detection mechanisms are used for respectively measuring the distance between different positions of the diamond wire wound from one main roller to the other main roller and the reference surface.

2. The positioning device according to claim 1, wherein the distance detecting mechanism comprises a telescopic rod which is arranged on the base and is perpendicular to the reference surface, a distance between at least two telescopic rods is smaller than or equal to a distance between two main rollers on the slicer, and each telescopic rod can be abutted against a first diamond wire on one side of the two main rollers, which is close to the side wall, through telescoping, and a distance between the diamond wire and the reference surface is determined.

3. The positioning device of claim 2, wherein the distance detection mechanism further comprises a distance display module for determining a distance between the diamond wire and the reference surface and displaying the distance according to an extended position of the telescopic rod.

4. A positioning device as claimed in claim 2, wherein the telescopic rod surface is provided with graduation marks for indicating the extension distance of the telescopic rod to determine the distance between the diamond wire and the reference surface.

5. The positioning device according to claim 2, wherein a contact sensing head is arranged at the top of the telescopic rod, the telescopic rod is abutted with the diamond wire through the contact sensing head, and the distance between the diamond wire and the reference surface is determined.

6. The positioning device according to claim 5, wherein the contact sensing head is rod-shaped, is vertically arranged on the top of the telescopic rod, and is used for vertically abutting against the diamond wire;

the telescopic rod is rotatably arranged on the base;

the distance detection mechanism further comprises a first motor and a second motor which are arranged in the base, the output end of the first motor, the output end of the second motor and the telescopic rod are in transmission, the first motor is used for driving the telescopic rod to stretch out and draw back, and the second motor is used for driving the telescopic rod to rotate.

7. The positioning device of claim 2, further comprising a horizontal detection module and a vertical detection module disposed in the base, wherein the horizontal detection module is configured to detect and display whether the telescopic rod is in a horizontal state, and the vertical detection module is configured to detect and display whether the reference plane is perpendicular to the main roller in an axial direction.

8. The positioning device of claim 7, further comprising a third motor disposed at the bottom of the base, wherein the third motor is configured to adjust the posture of the base according to the detection results of the horizontal detection module and the vertical detection module, so that the telescopic rod is in a horizontal state, and the reference plane is axially perpendicular to the main roller.

9. The positioning device of claim 2, wherein at least two of said distance detecting mechanisms comprise two of said telescopic rods respectively disposed at both ends of said base.

10. The positioning device of any of claims 1-9 wherein the base is an adsorption base.