Clamping device and wire cutting machine

Abstract

The utility model provides a clamping device and a wire cutting machine. The clamping device comprises a clamping table, a first crystal support and a second crystal support. The clamping table is provided with a first mounting groove and a second mounting groove. The first crystal support is arranged on the lower side of the clamping table, a first clamping block is arranged on the upper side of the first crystal support, and the first clamping block is installed in the first installation groove. The second crystal support is arranged on the lower side of the clamping table, and the second crystal support and the first crystal support are arranged in parallel. A second clamping block is arranged on the upper side of the second crystal support and installed in the second installation groove. Due to the fact that the two crystal supports are arranged, and the lower side of each crystal support is provided with the half rod, namely, one crystal rod is clamped, and due to the fact that the clamping table is arranged, the crystal rod can be installed on an existing wire cutting machine, and the whole crystal rod is cut when the wire cutting machine cuts the crystal rod. Obviously, the clamping device provides technical support for conveniently obtaining smaller slices.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting, in particular to a clamping device and a wire cutting machine. Background Art

[0002] In the technical field of wire cutting, taking a photovoltaic silicon rod as an example, generally, the silicon rod needs to go through operations such as truncating, squaring, grinding and polishing, slicing, etc. to be made into silicon wafers. The slicing operation is completed by a slicing machine. The silicon rod is bonded to a crystal holder, and the crystal holder is clamped by a clamping device, and then the silicon rod is driven by a feeding mechanism to move relative to the cutting wire mesh to achieve slicing. With the continuous development of battery technology, the demand for small-size silicon wafers is increasing. In order to obtain small-size silicon wafers, in the prior art, there is a technology of cutting the silicon rod in half along the axial direction to obtain a half-rod, and then slicing the half-rods respectively (i.e., half-wafers).

[0003] However, when using the clamping mechanism in the prior art for cutting the half-rods, due to the mismatch with the cutting ability, cutting process, blanking process, etc. of the existing slicing machine, there is still a problem of low cutting efficiency. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a clamping device and a wire cutting machine, which can clamp two half-rods at the same time, and further can realize cutting the two half-rods at the same time, which is beneficial to matching the cutting ability and cutting process of the wire cutting machine, as well as adapting to the blanking process after cutting, and thus is beneficial to improving the cutting efficiency of half-wafer cutting.

[0005] Specifically, the utility model provides a clamping device, which includes:

[0006] A clamping table, the clamping table has a first installation groove and a second installation groove;

[0007] A first crystal holder, the first crystal holder is arranged on the lower side of the clamping table, a first clamping block is arranged on the upper side of the first crystal holder, and the first clamping block is installed in the first installation groove;

[0008] A second crystal holder, the second crystal holder is arranged on the lower side of the clamping table, the second crystal holder is arranged in parallel with the first crystal holder; a second clamping block is arranged on the upper side of the second crystal holder, and the second clamping block is installed in the second installation groove.

[0009] Optionally, the first crystal holder contacts the second crystal holder, and the lower surface of the first crystal holder is flush with the lower surface of the second crystal holder.

[0010] Optionally, the distance between the first crystal holder and the second crystal holder is less than or equal to 15 mm, and the lower surface of the first crystal holder is flush with the lower surface of the second crystal holder.

[0011] Optionally, the clamping device further includes:

[0012] A clamping seat and a lifting unit installed on the clamping seat, the lifting unit being configured to drive the clamping table to move upward;

[0013] The clamping seat is used to define the upward movement stroke of the first crystal carrier and the second crystal carrier relative to the clamping seat.

[0014] Optionally, the clamping device further includes: a lifting block;

[0015] The clamping table further has a receiving groove, and the receiving groove is located between the first mounting groove and the second mounting groove;

[0016] The lifting block is disposed in the receiving groove and is configured to drive the clamping table to rise by contacting the clamping table; the lifting unit is configured to drive the lifting block to move upward.

[0017] Optionally, the clamping device further includes: a lifting frame;

[0018] A fourth mounting groove is provided on the lifting frame, and the clamping table is mounted in the fourth mounting groove; the lifting unit is configured to drive the lifting frame to move upward.

[0019] Optionally, there are a plurality of clamping tables, which are sequentially arranged along the length direction of the first crystal carrier, and the clamping tables are fixedly connected to the lifting unit.

[0020] Optionally, the clamping device further includes:

[0021] A clamping seat and a lifting unit installed on the clamping seat, the lifting unit being configured to drive the first crystal carrier and the second crystal carrier to move upward;

[0022] The clamping seat is used to define the upward movement stroke of the clamping table relative to the clamping seat, or to define the upward movement stroke of the first crystal carrier and the second crystal carrier relative to the clamping seat.

[0023] Optionally, the clamping table is movably installed up and down on the clamping seat;

[0024] The clamping seat has a third mounting groove, and the clamping table is mounted in the third mounting groove.

[0025] Optionally, the third mounting groove is used to prevent the clamping table from disengaging downward from the clamping seat, the third mounting groove is horizontally arranged, and at least one end of the third mounting groove penetrates through the clamping seat.

[0026] Optionally, the clamping seat has a first limiting surface, the first crystal carrier has a second limiting surface, and the first limiting surface is configured to contact and abut against the second limiting surface to define the upward movement stroke of the first crystal carrier relative to the clamping seat;

[0027] The clamping seat has a third limiting surface, the second crystal carrier has a fourth limiting surface, and the third limiting surface is configured to contact and abut against the fourth limiting surface to define the upward movement stroke of the second crystal carrier relative to the clamping seat;

[0028] The first limiting surface and the third limiting surface are disposed on both sides of the third mounting groove.

[0029] Optionally, the clamping device further includes:

[0030] A positioning component, which is disposed between the first crystal carrier or the first clamping block and the clamping seat to define the upward movement stroke of the first crystal carrier relative to the clamping seat, and / or is disposed between the second crystal carrier or the second clamping block and the clamping seat to define the upward movement stroke of the second crystal carrier relative to the clamping seat.

[0031] Optionally, the clamping table has a first through hole above the first mounting groove, the positioning component includes a first positioning member, the first positioning member passes through the first through hole and contacts the upper surface of the first clamping block;

[0032] The clamping table has a second through hole above the second mounting groove, the positioning component includes a second positioning member, the second positioning member passes through the second through hole and contacts the upper surface of the second clamping block.

[0033] Optionally, the first positioning member is fixedly connected to the clamping seat, or the first positioning member is movably disposed up and down on the clamping seat or the clamping table, and the upper end of the first positioning member is configured to contact the clamping seat;

[0034] The second positioning member is fixedly connected to the clamping seat, or the second positioning member is movably disposed up and down on the clamping seat or the clamping table, and the upper end of the second positioning member is configured to contact the clamping seat.

[0035] Optionally, the clamping device further includes:

[0036] A lifting unit, the lifting unit is installed on the clamping table, and the lifting unit is configured to drive the first crystal carrier and the second crystal carrier to move upward;

[0037] The clamping table is used to define the upward movement stroke of the first crystal carrier and the second crystal carrier relative to the clamping table.

[0038] Optionally, a first wheel for supporting the first clamping block is provided on the groove wall of the first installation groove.

[0039] A second wheel for supporting the second clamping block is provided on the groove wall of the second installation groove.

[0040] Optionally, the lifting unit includes a lifting member having a first lifting hole and a second lifting hole; the first clamping block passes through the first lifting hole, and the second clamping block passes through the second lifting hole.

[0041] Optionally, a first guiding post is provided on the top wall of the first lifting hole, a first guiding groove is provided on the top wall of the first clamping block, and the first guiding post is inserted into the first guiding groove; a second guiding post is provided on the top wall of the second lifting hole, a second guiding groove is provided on the top wall of the second clamping block, and the second guiding post is inserted into the second guiding groove.

[0042] Optionally, there are two lifting members, which are arranged on the outer sides of both ends of the clamping table.

[0043] Optionally, a first guiding post is provided on the top wall of the first installation groove, a first guiding groove is provided on the top wall of the first clamping block, and the first guiding post is inserted into the first guiding groove; a second guiding post is provided on the top wall of the second installation groove, a second guiding groove is provided on the top wall of the second clamping block, and the second guiding post is inserted into the second guiding groove.

[0044] Optionally, the first installation groove is used to prevent the first clamping block from disengaging downward from the clamping table; the first installation groove is horizontally arranged, and at least one end of the first installation groove penetrates the clamping table;

[0045] The second installation groove is used to prevent the second clamping block from disengaging downward from the clamping table, the second installation groove is horizontally arranged, and at least one end of the second installation groove penetrates the clamping table.

[0046] Optionally, both the first crystal carrier and the second crystal carrier are semi - sheet - type crystal carriers, so that the lower sides of both the first crystal carrier and the second crystal carrier are used for installing half - rods.

[0047] The present utility model further provides a wire cutting machine, which includes any one of the above - mentioned clamping devices.

[0048] In the clamping device and the wire cutting machine of the present utility model, there are two crystal carriers that can be adapted to bond half - rods, and a clamping table, which can enable a crystal bar to be installed on an existing wire cutting machine. When the wire cutting machine cuts, the whole crystal bar is cut simultaneously, which is beneficial to utilizing the cutting ability of the existing wire cutting machine.

[0049] Specifically, when the clamping device of the present utility model installs the half rods, one half rod is installed on each crystal carrier, and there are no problems such as interference and extrusion, and the installation difficulty is low. Obviously, two half rods can be cut simultaneously, which is beneficial to improving the cutting efficiency of half-piece cutting compared with separately cutting the two half rods in batches; and the slicing machine slices the two half rods simultaneously, which is beneficial to adapting to the cutting ability and cutting process of the slicing machine. On the other hand, when discharging after slicing is completed, the two crystal carriers can be separated, that is, the slices on the crystal carriers can be separated, which is beneficial to obtaining the slices. That is, before debinding, the two crystal carriers are separated, and each half rod is adhered to a separate crystal carrier, so that the subsequent debinding, inserting, and washing can be automated. Obviously, the clamping device of the present utility model provides technical support for conveniently obtaining smaller slices.

[0050] Furthermore, in the clamping device and the wire cutting machine of the present utility model, since there is a clamping table, it is not necessary to improve the existing clamping seat. To put it another way, even if it is necessary to improve the existing clamping seat, the improvement is relatively small, which is beneficial to reducing costs.

[0051] Specifically, during use, after installing the crystal carrier on the clamping table, the whole formed by the crystal carrier and the clamping table is then installed on the clamping seat, which is convenient for the transportation and installation of the crystal bar. Moreover, the clamping seat can directly use the clamping seat in the existing wire cutting machine. That is to say, during the production and manufacturing process of the clamping device of the present utility model, based on the existing clamping device, the clamping seat therein does not need to be redesigned or greatly modified, which is beneficial to reducing costs.

[0052] Furthermore, in the clamping device and the wire cutting machine of the present utility model, since there is a third installation groove, that is, a clamping table installation groove, which is used to prevent the clamping table from disengaging downward from the clamping seat. The clamping table installation groove is horizontally arranged, and at least one end of the clamping table installation groove penetrates the clamping seat. Of course, in some alternative embodiments, the clamping table installation groove only facilitates the installation of the clamping table, and a lifting unit is used to prevent the clamping table from disengaging downward from the clamping seat.

[0053] Based on the following detailed description of the specific embodiments of the present utility model in conjunction with the drawings, those skilled in the art will become more clear about the above and other objects, advantages, and features of the present utility model. Description of the Drawings

[0054] Hereinafter, some specific embodiments of the present utility model will be described in detail with reference to the drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0055] Figure 1 is a schematic structural diagram of a clamping device according to an embodiment of the present utility model;

[0056] Figure 2 is Figure 1 a schematic side view of the clamping device shown;

[0057] Figure 3 is Figure 1 a schematic front view of the clamping device shown;

[0058] Figure 4 is a schematic structural diagram of a clamping device according to an embodiment of the present utility model;

[0059] Figure 5 is a schematic structural diagram of a clamping device according to an embodiment of the present utility model;

[0060] Figure 6 is a schematic structural diagram of a clamping device according to an embodiment of the present utility model;

[0061] Figure 7 is Figure 6 a schematic side view of the clamping device shown;

[0062] Figure 8 is Figure 7 a schematic sectional view taken along line A-A in

[0063] Description of reference numerals:

[0064] 10. Clamping table; 11. First installation groove; 12. Second installation groove; 21. First crystal carrier; 22. Second crystal carrier; 25. First clamping block; 26. Second clamping block; 30. Clamping seat; 31. Third installation groove; 40. Lifting unit; 41. Lifting block; 50. Positioning component. Detailed implementation manners

[0065] The following will describe the clamping device and wire cutting machine according to the embodiments of the present utility model with reference to Figures 1 to 8 In the description of the embodiments of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, including one or more of such features. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0066] Unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", "linked", "fixed", "coupled", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to specific circumstances.

[0067] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features between them. That is, in the description of this embodiment, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The first feature being "below", "beneath", or "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal level than the second feature. Moreover, it should be noted that in the description of this embodiment, directions such as up and down are exemplary and can be determined according to specific working conditions. For example, when describing that A is above B, during actual use, A may be below B, or A may be on one side of B, etc.

[0068] In the description of this embodiment, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0069] Unless otherwise specified, the term "plural" means two or more.

[0070] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B. The term "and / or" is a description of the association relationship of an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B these three relationships.

[0071] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0072] As Figure 1 shown and with reference to Figures 2 to 5 , an embodiment of the present utility model provides a clamping device, which includes a clamping table 10, a first crystal carrier 21 and a second crystal carrier 22. The clamping table 10 has a first installation groove 11 and a second installation groove 12. The first crystal carrier 21 is disposed on the lower side of the clamping table 10, and a first clamping block 25 is provided on the upper side of the first crystal carrier 21, and the first clamping block 25 is installed in the first installation groove 11. The second crystal carrier 22 is disposed on the lower side of the clamping table 10, and the second crystal carrier 22 is arranged in parallel with the first crystal carrier 21. A second clamping block 26 is provided on the upper side of the second crystal carrier 22, and the second clamping block 26 is installed in the second installation groove 12.

[0073] When the clamping device of the embodiment of the present utility model is in use, the first crystal carrier 21 and the second crystal carrier 22 can be first installed on the clamping table 10, and then the whole formed by the clamping table 10, the first crystal carrier 21 and the second crystal carrier 22 is installed on a wire cutting machine. Then, the cutting device of the wire cutting machine is used to simultaneously cut the silicon rod or semi-rod bonded by the first crystal carrier 21 and the second crystal carrier 22. In some alternative embodiments, the clamping table 10 can also be fixedly arranged on the wire cutting machine, and then the first crystal carrier 21 and the second crystal carrier 22 are respectively installed on the clamping table 10, and then the cutting device is used for cutting. At the same time, reverse actions can also realize the disassembly of the crystal carrier, that is, on a working platform, the functions of clamping, fastening and disassembling of the half-piece double crystal rods are realized.

[0074] Since the clamping device of the embodiment of the present utility model has two crystal carriers, namely the first crystal carrier 21 and the second crystal carrier 22, and the crystal carriers are both half-piece crystal carriers adaptable to the bonding of semi-rods, that is, a semi-rod can be installed on the lower side of each crystal carrier, which is equivalent to clamping a crystal rod, and there is a clamping table 10, which enables the crystal rod to be installed on an existing wire cutting machine, and the wire cutting machine cuts the whole crystal rod simultaneously during cutting, which is beneficial to utilizing the cutting ability of the existing wire cutting machine.

[0075] Specifically, when installing the semi-rods on the clamping device, each crystal carrier installs one semi-rod, and there are no problems such as interference and extrusion, and the installation difficulty is low. The slicing machine can cut two semi-rods simultaneously, and the cutting ability can be effectively exerted, which can reduce the cost. After slicing, the two crystal carriers can be separated to realize blanking, and the automatic degumming operation can be carried out on the slices on the two crystal carriers respectively, which is beneficial to the acquisition of the obtained slices. Obviously, the clamping device of the embodiment of the present utility model provides technical support for conveniently obtaining smaller slices.

[0076] In some embodiments of the present utility model, the first crystal carrier 21 contacts the second crystal carrier 22, and the lower surface of the first crystal carrier 21 is flush with the lower surface of the second crystal carrier 22 or has a very small height difference, and the height difference is less than 5 mm. Such a setting is conducive to forming an integral body of the two half-rods on the first crystal carrier 21 and the second crystal carrier 22, and is conducive to the cutting device cutting the crystal bar simultaneously or with a small time difference. In some other embodiments of the present utility model, according to the actual working conditions, the first crystal carrier 21 and the second crystal carrier 22 can be arranged at intervals, and the distance between the first crystal carrier 21 and the second crystal carrier 22 should be less than or equal to 15 mm. For example, the distance between the first crystal carrier 21 and the second crystal carrier 22 is 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 8 mm, 10 mm, 11 mm, 12 mm or 13 mm, etc.

[0077] In some embodiments of the present utility model, both the first crystal carrier 21 and the second crystal carrier 22 are semi-piece crystal carriers, so that the lower sides of the first crystal carrier 21 and the second crystal carrier 22 are respectively used to mount the half-rods. Such a setting enables the cutting device to cut the two half-rods simultaneously, and it is easy to obtain smaller slices (i.e., half-slices) after cutting. It should also be noted here that in the photovoltaic industry, the half-rod is not exactly half of the square rod, not half in the geometric sense. For example, for a square rod of 180×180, the corresponding half-rod specifications may be 180×89, 180×90, 180×91, etc. That is to say, the half-rod can be greater than or less than half of the square rod in the geometric sense, that is, the relationship between the length and width of the cross-section of the half-rod can be: the width of the cross-section of the half-rod is between half of the length of the cross-section minus a preset difference and half of the length of the cross-section plus a preset difference, and the preset difference can be 1 / 10 of the length of the cross-section of the half-rod, etc. Usually, the two half-rods carried by the first crystal carrier 21 and the second crystal carrier 22 can form a complete square rod. In the actual production and manufacturing process, the two half-rods carried by the first crystal carrier 21 and the second crystal carrier 22 can be greater than or less than or equal to half of the square rod in the geometric sense.

[0078] In some alternative embodiments of the present utility model, the sizes of the first crystal carrier 21 and the second crystal carrier 22 can be set according to actual needs. For example, crystal bars are respectively mounted on the lower sides of the first crystal carrier 21 and the second crystal carrier 22. In some other alternative embodiments of the present utility model, the lower surface of the first crystal carrier 21 can also be smaller than or larger than the lower surface of the second crystal carrier 22.

[0079] In some embodiments of the present utility model, the first installation groove 11 is used to prevent the first clamping block 25 from disengaging downward from the clamping table 10. The second installation groove 12 is used to prevent the second clamping block 26 from disengaging downward from the clamping table 10. Such a setting is conducive to protecting the crystal bars, semi-crystal bars, etc. on the first crystal carrier 21 and the second crystal carrier 22, and is also conducive to the transportation of the crystal bars, semi-crystal bars, etc.

[0080] In some embodiments of the present utility model, such as Figures 1 to 5 shown, the clamping device further includes a clamping seat 30 and a lifting unit 40 installed on the clamping seat 30. The lifting unit 40 is configured to drive the clamping table 10 to move upward. The clamping seat 30 is used to define the upward movement stroke of the first crystal carrier 21 and the second crystal carrier 22 relative to the clamping seat 30.

[0081] When clamping, the lifting unit 40 drives the clamping table 10 to move upward, and the clamping table 10 drives the first crystal carrier 21 and the second crystal carrier 22 to move upward. After the first crystal carrier 21 and the second crystal carrier 22 are blocked by the clamping seat 30, the first crystal carrier 21 and the second crystal carrier 22 will press against the bottom surface of the corresponding installation groove, realizing the clamping of the first crystal carrier 21 and the second crystal carrier 22. In this embodiment, since there is the clamping table 10, it is not necessary to improve the existing clamping seat 30. Further, even if it is necessary to improve the existing clamping seat 30, the improvement is relatively small, which is beneficial to reducing costs. Specifically, in use, after installing the crystal carrier on the clamping table 10, then installing the whole formed by the crystal carrier and the clamping table 10 on the clamping seat 30, which is convenient for the transfer and installation of the ingot. Moreover, the clamping seat 30 can directly utilize the clamping seat 30 in the existing wire cutting machine. That is to say, during the production and manufacturing process of the clamping device of the present utility model, based on the existing clamping device, the clamping seat 30 therein does not need to be redesigned, or does not need to be greatly modified, which is beneficial to reducing costs.

[0082] For example, in some embodiments of the present utility model, the clamping device further includes a lifting block. The clamping table 10 further has a receiving groove, and the receiving groove is located between the first installation groove 11 and the second installation groove 12. The lifting block is arranged in the receiving groove and is configured to drive the clamping table 10 to rise by contacting the clamping table 10. The lifting unit 40 is configured to drive the lifting block to move upward.

[0083] In some other embodiments of the present utility model, the clamping device further includes a lifting block and a locking bar. The clamping table 10 further has a receiving groove, and the receiving groove is located between the first installation groove 11 and the second installation groove 12. The lifting block is arranged in the receiving groove. The locking bar can be horizontally arranged and pass through the lifting block and the clamping table 10; or, the locking bar is located on the upper side of the lifting block and passes through the clamping table 10. When the lifting block rises, it drives the locking bar to rise, and the locking bar drives the clamping table 10 to rise. The lifting unit 40 is configured to drive the lifting block to move upward.

[0084] In some alternative embodiments of the present utility model, the clamping device further includes a lifting frame. A fourth installation groove is provided on the lifting frame, and the clamping table 10 is installed in the fourth installation groove. The lifting unit 40 is configured to drive the lifting frame to move upward. In this embodiment, there can be two lifting frames, which are arranged at both ends of the clamping seat 30.

[0085] In some embodiments of the present utility model, there are multiple clamping platforms 10, which are arranged in sequence along the length direction of the first crystal carrier 21, and the clamping platforms 10 are fixedly connected to the lifting unit 40. In this embodiment, it can also be said that the first crystal carrier 21 and the second crystal carrier 22 are directly installed on the lifting assembly including the clamping platform 10 and the lifting unit 40.

[0086] In some other embodiments of the present utility model, the lifting unit 40 is configured to drive the first crystal carrier 21 and the second crystal carrier 22 to move upward. The clamping seat 30 is used to define the upward movement stroke of the clamping platform 10 relative to the clamping seat 30. When clamping, the lifting unit 40 drives the first crystal carrier 21 and the second crystal carrier 22 to move upward. After the first crystal carrier 21 and the second crystal carrier 22 are blocked by the clamping platform 10, the first crystal carrier 21 and the second crystal carrier 22 drive the clamping platform 10 to rise until the clamping platform 10 is blocked by the clamping seat 30, realizing the clamping of the first crystal carrier 21 and the second crystal carrier 22.

[0087] In some other embodiments of the present utility model, the lifting unit 40 is configured to drive the first crystal carrier 21 and the second crystal carrier 22 to move upward. The clamping seat 30 is used to define the upward movement stroke of the first crystal carrier 21 and the second crystal carrier 22 relative to the clamping seat 30. When clamping, the lifting unit 40 drives the first crystal carrier 21 and the second crystal carrier 22 to move upward. After the first crystal carrier 21 and the second crystal carrier 22 are blocked by the clamping seat 30, the clamping of the first crystal carrier 21 and the second crystal carrier 22 is realized.

[0088] In some embodiments of the present utility model, when the lifting unit 40 directly drives the crystal carrier to move upward, the crystal carrier mounting grooves, namely the first mounting groove and the second mounting groove, can be set not to hinder the downward detachment of the clamping block from the clamping platform 10, and the lifting unit 40 is used to hinder the downward detachment of the clamping block from the clamping platform 10. Of course, for the convenience of transporting the crystal carrier and protecting the crystal carrier, etc., the crystal carrier mounting grooves are preferably set to hinder the downward detachment of the clamping block from the clamping platform 10.

[0089] In some embodiments of the present utility model, the lifting unit 40 can drive the crystal carrier to move upward on the outer sides of both ends of the clamping seat 30. Further, hanging grooves are provided at both ends of the first crystal carrier 21, and hanging grooves are provided at both ends of the second crystal carrier 22. The lifting unit 40 includes hooks, and the hooks are inserted into the hanging grooves to drive the first crystal carrier 21 and the second crystal carrier 22 to rise.

[0090] In some embodiments of the present utility model, the clamping platform 10 is movably mounted on the clamping seat 30 in the up-and-down direction. Further, after the clamping platform 10 is installed on the clamping seat 30, it cannot be detached from the clamping seat 30 and can only move up and down relative to the clamping seat 30. When transporting the crystal bar and the semi-crystal bar, the first crystal carrier 21, the second crystal carrier 22 and the crystal bar and semi-crystal bar adhered to the crystal carrier are transported.

[0091] In some embodiments of the present utility model, the clamping table 10 is directly mounted on the lifting unit and can be equivalent to a lifting block, a mushroom head, etc. Further, the clamping table 10 can also be set to be relatively small and only arranged at both ends of the first crystal carrier 21 and the second crystal carrier 22.

[0092] In some alternative embodiments, after the clamping table 10 is mounted on the clamping seat 30, it can be disengaged from the clamping seat 30. For example, the clamping seat 30 has a third mounting groove 31, and the clamping table 10 is mounted in the third mounting groove 31. During use, after the crystal carrier is mounted on the clamping table 10, the whole formed by the crystal carrier and the clamping table 10 is then mounted on the clamping seat 30, which is convenient for the transfer and installation of the crystal bar. Moreover, the clamping seat 30 can directly utilize the clamping seat 30 in the existing wire cutting machine. That is to say, during the production and manufacturing process of the clamping device in the embodiments of the present utility model, based on the existing clamping device, the clamping seat 30 therein does not need to be redesigned or greatly modified, which is beneficial to cost reduction. Further, the third mounting groove 31 is used to prevent the clamping table 10 from disengaging downward from the clamping seat 30. The third mounting groove 31 is horizontally arranged, and at least one end of the third mounting groove 31 penetrates the clamping seat 30. Of course, in some alternative embodiments, the third mounting groove only facilitates the installation of the clamping table 10, and the lifting unit is used to prevent the clamping table 10 from disengaging downward from the clamping seat 30.

[0093] In some embodiments of the present utility model, the clamping seat 30 has a first limiting surface, and the first crystal carrier 21 has a second limiting surface. The first limiting surface is configured to contact and abut against the second limiting surface to limit the upward movement stroke of the first crystal carrier 21 relative to the clamping seat 30. The clamping seat 30 has a third limiting surface, and the second crystal carrier 22 has a fourth limiting surface. The third limiting surface is configured to contact and abut against the fourth limiting surface to limit the upward movement stroke of the second crystal carrier 22 relative to the clamping seat 30. The first limiting surface and the third limiting surface are arranged on both sides of the third mounting groove 31. Such a setting can make the structure of the clamping device compact.

[0094] In some embodiments of the present utility model, as Figure 4 and Figure 5 shown, the clamping device further includes a positioning component 50. The positioning component 50 is arranged between the first crystal carrier 21 or the first clamping block 25 and the clamping seat 30 to limit the upward movement stroke of the first crystal carrier 21 relative to the clamping seat 30, and / or is arranged between the second crystal carrier 22 or the second clamping block 26 and the clamping seat 30 to limit the upward movement stroke of the second crystal carrier 22 relative to the clamping seat 30. A positioning component 50 is arranged between the clamping seat 30 and the crystal carrier. The clamping seat 30 restricts the upward movement of the positioning component 50, and the positioning component 50 restricts the upward movement of the crystal carrier, realizing the function of the clamping seat 30 for limiting the upward movement strokes of the first crystal carrier 21 and the second crystal carrier 22 relative to the clamping seat 30.

[0095] In some preferred embodiments of the present utility model, the clamping table 10 has a first through hole on the upper side of the first installation groove 11. The positioning assembly 50 includes a first positioning member that passes through the first through hole and contacts the upper surface of the first clamping block 25. The clamping table 10 has a second through hole on the upper side of the second installation groove 12. The positioning assembly 50 includes a second positioning member that passes through the second through hole and contacts the upper surface of the second clamping block 26.

[0096] During operation, a crystal bar or a half crystal bar can be installed on the crystal carrier. Then, the crystal carrier is installed on the clamping table 10 through the installation groove for the crystal carrier. Then, the lifting unit 40 can directly drive the crystal carrier or drive the crystal carrier to move upward through the clamping table 10. As the crystal carrier moves upward, the positioning assembly 50 acts on the crystal carrier and hinders the upward movement of the crystal carrier. At this time, the clamping of the crystal carrier is achieved. That is, the clamping device of the embodiment of the present utility model realizes the clamping of the crystal carrier by providing through holes and the positioning assembly 50.

[0097] In the embodiment of the present utility model, the surface of the positioning assembly 50 for positioning, that is, the lower end surfaces of the first positioning member and the second positioning member, are significantly smaller than the top surface of the crystal carrier installation groove. Correspondingly, the positioning surfaces corresponding to the upper surfaces of the clamping blocks on the crystal carrier, that is, the first clamping block 25 and the second clamping block 26, are only a part of the upper surface of the clamping blocks. This can significantly reduce the processing surface. When processing a smaller processing surface, it is significantly beneficial to reduce the processing cost while improving the processing quality. Moreover, due to the high processing quality of the processing surface, that is, the high flatness of the processing surface, it is beneficial to improve the clamping effect. That is, the clamping device of the present utility model has a lower cost and a higher clamping effect compared with the existing clamping devices.

[0098] Moreover, since the through holes are on the upper side of the crystal carrier installation groove, the positioning assembly 50 contacts at least the middle part of the clamping block along the width direction of the clamping block, so that the middle part of the clamping block can be clamped, preventing the problem of crystal carrier deflection that occurs when clamping at the edge position of the crystal carrier, that is, it is beneficial to prevent the crystal carrier from being higher on one side and lower on the other side. When clamping in the middle, compared with clamping on both sides of the crystal carrier, the processing cost can be reduced.

[0099] Particularly, in the clamping device and the wire cutting machine of the present utility model, since there are two crystal carriers and the distance between the two crystal carriers is relatively close or they need to be in contact, since it is impossible to clamp on both sides of each crystal carrier, that is, the problem of crystal carrier deflection cannot be solved. In view of this, the present utility model adopts the scheme of middle clamping with through holes and the positioning assembly 50, which is beneficial to make the lower surfaces of the two crystal carriers be in the same plane.

[0100] In some embodiments of the present utility model, the first positioning member is fixedly connected to the clamping seat 30, or the first positioning member is disposed on the clamping seat 30 or the clamping table 10 in a vertically movable manner, and the upper end of the first positioning member is configured to contact the clamping seat 30. The second positioning member is fixedly connected to the clamping seat 30, or the second positioning member is disposed on the clamping seat 30 or the clamping table 10 in a vertically movable manner, and the upper end of the second positioning member is configured to contact the clamping seat 30.

[0101] That is to say, in some embodiments of the present utility model, the positioning assembly 50 is fixedly connected to the clamping seat 30. For example, the positioning assembly 50 can be installed on the clamping seat 30, or the positioning assembly 50 and the clamping seat 30 are integrally formed. It can also be said that a smaller clamping mating surface is provided on the clamping seat 30 to reduce costs.

[0102] In other embodiments of the present utility model, the positioning assembly 50 is disposed in a vertically movable manner, and the upper end of the positioning assembly 50 is configured to contact the clamping seat 30. That is to say, the positioning assembly 50 is disposed on the clamping seat 30 or the clamping table 10 in a vertically movable manner. Preferably, the positioning assembly 50 is disposed on the clamping table 10 in a vertically movable manner. By providing a movable solution, for example, directly placing the positioning assembly 50 in the through hole, it is beneficial to the replacement of the positioning assembly 50 and also beneficial to the installation of the clamping device.

[0103] In some embodiments of the present utility model, the through hole of the clamping table 10 has a movement position below the positioning assembly 50. In particular, when the positioning assembly 50 is disposed on the clamping seat 30, the position of the clamping table 10 is beneficial to the horizontal movement of the clamping table 10, that is, beneficial to the installation of the clamping table 10, and the positioning assembly 50 can also guide the lifting of the clamping table 10. In this embodiment, the clamping table 10 needs to be disposed on the clamping seat 30 in a vertically movable manner.

[0104] In some embodiments of the present utility model, the clamping device further includes a reset unit, and the reset unit is disposed between the clamping table 10 and the positioning assembly 50 and is configured to urge the lower end of the positioning assembly 50 to remain above the crystal holder mounting groove.

[0105] For example, the reset unit can be a compression spring, which is sleeved on the corresponding positioning member. In the initial position, the lower end of the positioning member is above the crystal holder mounting groove, that is, not in the crystal holder mounting groove. In this way, when installing the crystal holder, there is no blockage to the installation of the chuck, which is beneficial to improving the installation speed. In this embodiment, the clamping table 10 needs to be disposed on the clamping seat 30 in a vertically movable manner.

[0106] In some alternative embodiments of the present utility model, the lower end of the positioning member may also extend into the crystal holder mounting groove, as long as it does not interfere with the installation of the clamping block. Even if the installation is a bit difficult, it is still an acceptable solution. The lower end of the positioning member can also be made to extend into the crystal holder mounting groove by using the reset unit.

[0107] In some embodiments of the present utility model, the first positioning member is directly placed in the first through hole, and the second positioning member is directly placed in the second through hole. Specifically, after the crystal holder is mounted on the clamping table 10, the positioning member is directly placed in the through hole, and the lower end of the positioning member contacts the crystal holder. After the crystal holder or the clamping table 10 rises, until the upper end of the positioning member contacts the clamping seat 30.

[0108] In some embodiments of the present utility model, the positioning member, such as the first positioning member and the second positioning member, is a limiting post or a limiting block, and the projection of the positioning member in the horizontal plane is circular, square, polygonal or plum blossom-shaped.

[0109] In some embodiments of the present utility model, there is no clamping seat 30, that is, the lifting unit 40 is mounted on the clamping table 10, and the lifting unit 40 is configured to drive the first crystal holder 21 and the second crystal holder 22 to move upward. The clamping table 10 is used to define the upward movement stroke of the first crystal holder 21 and the second crystal holder 22 relative to the clamping table 10. In use, when two crystal holders are directly mounted on the clamping seat 30, during the transfer of the crystal bar and the semi-bar, it is the transfer of each crystal holder and the crystal bar adhered to the crystal holder, rather than the transfer of the whole formed by the crystal holder and the clamping table 10.

[0110] In some embodiments of the present utility model, the first mounting groove 11 is horizontally arranged, and at least one end of the first mounting groove 11 penetrates the clamping table 10. The second mounting groove 12 is horizontally arranged, and at least one end of the second mounting groove 12 penetrates the clamping table 10. The penetration of the mounting groove of the crystal holder through the clamping table 10 is beneficial to the installation of the crystal holder.

[0111] In some embodiments of the present utility model, a first guiding post is provided on the top wall of the first mounting groove 11, a first guiding groove is provided on the top wall of the first clamping block 25, and the first guiding post is inserted into the first guiding groove. A first wheel for supporting the first clamping block 25 is provided on the groove wall of the first mounting groove 11. A second guiding post is provided on the top wall of the second mounting groove 12, a second guiding groove is provided on the top wall of the second clamping block 26, and the second guiding post is inserted into the second guiding groove. A second wheel for supporting the second clamping block 26 is provided on the groove wall of the second mounting groove 12. In this embodiment, due to the presence of the guiding post, the guiding groove and the wheels, the two crystal holders can be easily and accurately placed in the designated positions respectively, which is beneficial to improving the installation accuracy of the crystal holder and the installation speed of the crystal holder.

[0112] In some embodiments of the present invention, the first mounting groove 11 , the second mounting groove 12 , the third mounting groove 31 and the receiving groove may be T-slots, dovetail grooves or reverse dovetail grooves, etc. The lifting unit 40 may be a hydraulic cylinder, etc.

[0113] In some embodiments of the present invention, Figures 6 to 8 As shown, the clamping device also includes a lifting unit 40 mounted on the clamping platform 10. The lifting unit 40 is configured to move the first wafer holder 21 and the second wafer holder 22 upward. The clamping platform 10 is used to limit the upward movement range of the first wafer holder 21 and the second wafer holder 22 relative to the clamping platform 10. In this embodiment, the clamping platform 10 is equivalent to the clamping base 30, and it can be said that the clamping platform 10 and the clamping base 30 are part of the same device.

[0114] In some embodiments of the present invention, the clamping device further includes a lifting block 41. The clamping platform 10 further includes a receiving slot located between the first mounting slot 11 and the second mounting slot 12. The lifting block 41 is disposed within the receiving slot and is configured to move the first and second wafer holders 21, 22 upward by contacting the first and second wafer holders 21, 22. The lifting unit 40 is configured to move the lifting block 41 upward.

[0115] In some embodiments of the present invention, a first wheel for supporting the first clamping block 25 is provided on the groove wall of the first mounting groove 11. A second wheel for supporting the second clamping block 26 is provided on the groove wall of the second mounting groove 12. In this embodiment, rollers, pulleys, etc. are directly provided on the lower side of the clamping platform 10, and the wheels are used to support the clamping block and also to limit the clamping block from downwardly disengaging from the clamping platform 10. The use of wheels is conducive to the installation of the clamping block and can increase the installation speed. In addition, the first mounting groove 11 and the second mounting groove 12 formed can be a frame structure and do not need to be set as a T-slot, dovetail groove, or reverse dovetail groove with relatively high precision.

[0116] Furthermore, the lifting unit 40 includes a lifting member having a first lifting hole and a second lifting hole; the first clamping block 25 passes through the first lifting hole, and the second clamping block 26 passes through the second lifting hole. A first guide post is provided on the top wall of the first lifting hole, and a first guide groove is provided on the top wall of the first clamping block 25, into which the first guide post is inserted; a second guide post is provided on the top wall of the second lifting hole, and a second guide groove is provided on the top wall of the second clamping block 26, into which the second guide post is inserted. Preferably, there are two lifting members, disposed on the outer sides of the clamping platform 10 at both ends.

[0117] An embodiment of the present utility model also provides a wire cutting machine, which includes a cutting device and a clamping device in any of the above embodiments. The wire cutting machine is a cutting device for cutting hard and brittle material rods such as single crystal silicon material rods, polycrystalline silicon material rods, sapphire rods, magnetic material rods, etc. The wire cutting machine has the advantages of high efficiency, high production capacity, and high precision. Its principle is to achieve the purpose of cutting by rubbing the workpiece to be processed with a high-speed moving cutting wire. The wire cutting machine often uses single-wire or multi-wire diamond wire to cut, square, and slice silicon materials, etc., so as to obtain corresponding silicon wafers or silicon materials. In this embodiment, a clamping device is used to fix the workpiece, such as a crystal rod, half a crystal rod, or half a crystal rod and two, and the cutting device moves the cutting wire on it to cut the workpiece.

[0118] In some embodiments of the present invention, the wire saw is a slicer. It can slice silicon ingots and other materials. For example, crystalline silicon, the primary raw material for solar panels, requires processes such as squaring and slicing before it can be made into thin wafers. The slicing process is performed using a slicer, which slices the squared silicon ingots into silicon wafers. The wire saws in embodiments of the present invention are particularly capable of slicing half a crystal ingot and offer high cutting efficiency.

[0119] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can be directly determined or deduced from the contents disclosed herein without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A clamping device, characterized in that, Comprising: A clamping table, which has a first mounting groove and a second mounting groove; A first crystal carrier, which is arranged on the lower side of the clamping table, and a first clamping block is arranged on the upper side of the first crystal carrier, and the first clamping block is mounted in the first mounting groove; A second crystal carrier, which is arranged on the lower side of the clamping table, and the second crystal carrier is arranged in parallel with the first crystal carrier; a second clamping block is arranged on the upper side of the second crystal carrier, and the second clamping block is mounted in the second mounting groove.

2. The clamping device according to claim 1, wherein The first crystal carrier is in contact with the second crystal carrier, and the lower surface of the first crystal carrier is flush with the lower surface of the second crystal carrier.

3. The clamping device according to claim 1, wherein The distance between the first crystal carrier and the second crystal carrier is less than or equal to 15 mm, and the lower surface of the first crystal carrier is flush with the lower surface of the second crystal carrier.

4. The clamping device according to claim 1, wherein, Further comprising: A clamping seat and a lifting unit mounted on the clamping seat, and the lifting unit is configured to drive the clamping table to move upward; The clamping seat is used to define the upward movement stroke of the first crystal carrier and the second crystal carrier relative to the clamping seat.

5. The clamping device according to claim 4, wherein, Further comprising a lifting block; The clamping table further has a receiving groove, and the receiving groove is between the first mounting groove and the second mounting groove; The lifting block is arranged in the receiving groove and is configured to drive the clamping table to rise by contacting the clamping table; the lifting unit is configured to drive the lifting block to move upward.

6. The clamping device according to claim 4, characterized in that, Further comprising a lifting block and a locking strip; The clamping table further has a receiving groove, and the receiving groove is between the first mounting groove and the second mounting groove; the lifting block is arranged in the receiving groove; The locking strip passes through the lifting block and the clamping table; or, the locking strip is on the upper side of the lifting block and passes through the clamping table; the lifting unit is configured to drive the lifting block to move upward.

7. The clamping device according to claim 4, characterized in that, Further comprising a lifting frame; A fourth mounting groove is arranged on the lifting frame, and the clamping table is mounted in the fourth mounting groove; the lifting unit is configured to drive the lifting frame to move upward.

8. The clamping device according to claim 4, wherein There are multiple clamping tables, which are arranged in sequence along the length direction of the first crystal carrier, and the clamping tables are fixedly connected to the lifting unit.

9. The clamping device according to claim 1, wherein, Further comprising: A clamping seat and a lifting unit mounted on the clamping seat, and the lifting unit is configured to drive the first crystal carrier and the second crystal carrier to move upward; The clamping seat is used to define the upward movement stroke of the clamping table relative to the clamping seat, or to define the upward movement stroke of the first crystal carrier and the second crystal carrier relative to the clamping seat.

10. The clamping device according to claim 4 or 9, wherein The clamping table is movably mounted on the clamping seat up and down; The clamping seat has a third mounting groove, and the clamping table is mounted in the third mounting groove.

11. The clamping device according to claim 10, wherein The third mounting groove is used to prevent the clamping platform from being disengaged downward from the clamping seat. The third mounting groove is arranged horizontally, and at least one end of the third mounting groove passes through the clamping seat.

12. The clamping device according to claim 10, characterized in that The clamping seat has a first limiting surface, and the first crystal holder has a second limiting surface, and the first limiting surface is configured to contact and abut against the second limiting surface to limit the upward movement of the first crystal holder relative to the clamping seat; The clamping seat has a third limiting surface, and the second crystal holder has a fourth limiting surface, wherein the third limiting surface is configured to contact and abut against the fourth limiting surface to limit the upward movement of the second crystal holder relative to the clamping seat; The first limiting surface and the third limiting surface are arranged on both sides of the third installation groove.

13. The clamping device according to claim 4 or 9, characterized in that: Also includes: A positioning component is arranged between the first crystal holder or the first clamping block and the clamping seat to limit the upward movement stroke of the first crystal holder relative to the clamping seat, and / or is arranged between the second crystal holder or the second clamping block and the clamping seat to limit the upward movement stroke of the second crystal holder relative to the clamping seat.

14. The clamping device according to claim 13, characterized in that The clamping platform has a first through-hole located on the upper side of the first mounting groove, and the positioning assembly includes a first positioning member, which passes through the first through-hole and contacts the upper surface of the first clamping block; The clamping platform has a second through hole located on the upper side of the second installation slot. The positioning assembly includes a second positioning piece. The second positioning piece passes through the second through hole and contacts the upper surface of the second clamping block.

15. The clamping device according to claim 14, characterized in that The first positioning member is fixedly connected to the clamping seat, or the first positioning member is movably arranged on the clamping seat or the clamping platform, and the upper end of the first positioning member is configured to contact the clamping seat; The second positioning member is fixedly connected to the clamping seat, or the second positioning member is movably arranged on the clamping seat or the clamping platform, and the upper end of the second positioning member is configured to contact the clamping seat.

16. The clamping device according to claim 1, characterized in that, Also includes: a lifting unit, the lifting unit being mounted on the clamping platform and configured to drive the first crystal holder and the second crystal holder to move upward; The clamping platform is used to limit the upward movement stroke of the first crystal holder and the second crystal holder relative to the clamping platform.

17. The clamping device according to claim 1 or 16, characterized in that: A first wheel for supporting the first clamping block is provided on the groove wall of the first mounting groove; A second wheel for supporting the second clamping block is provided on the groove wall of the second installation groove.

18. The clamping device according to claim 9 or 16, characterized in that: The lifting unit includes a lifting member having a first lifting hole and a second lifting hole; the first clamping block passes through the first lifting hole, and the second clamping block passes through the second lifting hole.

19. The clamping device according to claim 18, characterized in that A first guiding post is arranged on the top wall of the first lifting hole, a first guiding groove is arranged on the top wall of the first clamping block, and the first guiding post is inserted into the first guiding groove; a second guiding post is arranged on the top wall of the second lifting hole, a second guiding groove is arranged on the top wall of the second clamping block, and the second guiding post is inserted into the second guiding groove.

20. The clamping device according to claim 18, wherein There are two lifting members, which are arranged outside both ends of the clamping table.

21. The clamping device according to claim 1, wherein A first guiding post is arranged on the top wall of the first installation groove, a first guiding groove is arranged on the top wall of the first clamping block, and the first guiding post is inserted into the first guiding groove; a second guiding post is arranged on the top wall of the second installation groove, a second guiding groove is arranged on the top wall of the second clamping block, and the second guiding post is inserted into the second guiding groove.

22. The clamping device according to claim 1, wherein The first installation groove is used to prevent the first clamping block from disengaging downward from the clamping table; the first installation groove is horizontally arranged, and at least one end of the first installation groove penetrates through the clamping table; The second installation groove is used to prevent the second clamping block from disengaging downward from the clamping table, the second installation groove is horizontally arranged, and at least one end of the second installation groove penetrates through the clamping table.

23. The clamping device according to claim 1, wherein Both the first crystal carrier and the second crystal carrier are semi - sheet crystal carriers, so that the lower sides of the first crystal carrier and the second crystal carrier are both used for installing semi - rods.

24. A wire cutting machine, characterized in that, Comprising the clamping device according to any one of claims 1 to 23.

25. The wire cutting machine according to claim 24, wherein, The wire cutting machine is a slicing machine.

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