Silicon wafer wire cutting device convenient to replace

Abstract

The utility model relates to the technical field of silicon wafer wire cutting, in particular to a silicon wafer wire cutting device convenient to replace, which comprises a base, a mounting seat, a clamping device and a winding support are arranged at the upper end of the base, a fixing seat is arranged between a wire wheel and the winding support, the fixing seat is detachably connected with the mounting seat, and a groove is formed in one side, far away from the mounting seat, of the fixing seat. A positioning ring is arranged in the groove, a pin positioning piece is arranged on the inner side of the positioning ring, a wheel roller support structure is arranged right in front of the fixing base, and an adjusting assembly used for controlling the wheel roller support structure to be opened and closed is arranged at the upper end of the fixing base. When the diamond wire is assembled and disassembled, the pin positioning piece in the positioning ring can primarily lock the bobbin, after the bobbin is primarily locked, the adjusting assembly at the upper end of the fixing seat can fold the wheel roller support structure, secondary limiting is conducted on the bobbin while rotation of the bobbin is not affected, the stability of the diamond wire on the bobbin on the winding support is improved, and the winding effect is improved. And the bobbin is convenient to mount and replace due to the adjustable and detachable structural design.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon wafer wire cutting, in particular to a silicon wafer wire cutting device which is easy to replace. Background Art

[0002] There are two main ways to cut polycrystalline silicon solar wafers: one is mortar cutting, which uses steel wire to drive the silicon carbide particles in the mortar to interact with the silicon wafers, and then cut; the other is diamond wire cutting, which uses electroplating to fix diamond particles in the nickel-based alloy layer on the surface of stainless steel, and the wire saw and diamond particles move together to cut. Compared with mortar cutting, the fine steel wire saw cutting technology has the advantages of fast cutting speed, low environmental load and easy recycling of cutting sawdust, and is the mainstream technology for current silicon wafer cutting production.

[0003] Common silicon wafer wire cutting devices mainly include:

[0004] The machine tool body, wire rack and wire transport components, guide rails and drive mechanisms, tension control components, and wire arrangement and take-up roller groups, etc. The wire arrangement and take-up roller group mainly plays the role of winding and ensuring the continuous supply of cutting wire. When loading and unloading diamond wire, the staff will fix the wire drum on the machine table, and then wind the diamond wire on the wire drum around the wire arrangement and take-up roller group. During this process, the wire drum will continue to rotate. In order to facilitate the installation of the wire drum, the machine table often uses a snap-fit ​​method to fix the wire drum and the turntable on the machine table. After a period of use, the snap-fit ​​fixing method will become loose at the fitting part. When the wire drum rotates through the turntable, it will shake to a certain extent, which will affect the wire arrangement effect of the diamond wire on the wire arrangement and take-up roller group. Utility Model Content

[0005] In view of the above problems, the utility model proposes a silicon wafer wire cutting device that is easy to replace, so as to solve the shortcomings of the existing silicon wafer wire cutting device that the engaging parts will become loose after being used for a period of time, and when the wire drum is rotated through the turntable, a certain degree of shaking will occur, which will then affect the wire arrangement and the diamond wire arrangement effect on the wire taking-up roller group.

[0006] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a silicon wafer wire cutting device that is easy to replace, comprising a base, a mounting seat, a clamping and winding bracket are arranged on the upper end of the base, the clamping and winding bracket are placed in front of the mounting seat, two wire wheels arranged up and down are arranged between the clamping and winding brackets, and the wire wheels are rotatably connected to the mounting seat;

[0007] A fixing seat is provided between the wire wheel and the winding bracket, and the fixing seat is detachably connected to the mounting seat. A groove is provided on the side of the fixing seat away from the mounting seat, and a positioning ring is provided in the groove. The positioning ring is rotatably connected to the fixing seat, and a pin positioning piece for fixing the wire drum is provided on the inner side of the positioning ring;

[0008] A roller bracket structure for limiting the position of the bobbin is provided in front of the fixed seat, and an adjusting component for controlling the opening and closing of the roller bracket structure is provided at the upper end of the fixed seat.

[0009] A further improvement is that the pin positioning member includes an adjusting bolt and a movable pin, the adjusting bolt is assembled on one side of the positioning ring, the movable pin is placed in the positioning ring, the adjusting bolt penetrates into the positioning ring and is fixedly connected with the movable pin, and the adjusting bolt is threadedly connected to the positioning ring.

[0010] A further improvement is that the wheel and roller support structure comprises an upper bracket and a lower bracket, the lower bracket is placed below the upper bracket, a limiting wheel is provided at the lower end of the upper bracket, and two limiting wheels are provided at the upper end of the lower bracket.

[0011] Further improvement lies in that: the adjustment component includes two slide grooves opened on the front side of the fixed seat, the two slide grooves are respectively placed above and below the groove, a screw is provided in the slide groove, a nut seat is provided on the outer side of the screw, the nut seat cooperates with the screw thread, the two nut seats are respectively fixedly connected to the upper bracket and the lower bracket, and a screwing head for controlling the rotation of the screw is provided at the upper end of the fixed seat, and the threads on the outer sides of the two screws are in opposite directions.

[0012] A further improvement is that an adjustment bracket is provided at the upper end of the base, the adjustment bracket is placed below the fixing seat, the adjustment bracket is fixedly connected to the mounting seat, a tensioning wheel is provided on the side of the adjustment bracket away from the mounting seat, and the tensioning wheel is slidably connected to the adjustment bracket.

[0013] A further improvement is that bolt plates are provided on both sides of the fixing seat, the bolt plates are fixedly connected to the fixing seat, and fixing bolts are installed at both ends of the bolt plates. The fixing bolts pass through the bolt plates and are threadedly connected to the threaded grooves opened on the outside of the mounting seat.

[0014] A further improvement is that a plurality of anti-skid pads are provided at the lower end of the base, and each anti-skid pad is fixedly connected to each corner of the lower end of the base.

[0015] The beneficial effects of the utility model are:

[0016] When loading and unloading the diamond wire, the pin positioning part in the positioning ring will initially lock the wire reel. After the initial locking, the adjustment component on the upper end of the fixed seat will close the roller bracket structure. Without affecting the rotation of the wire reel, the wire reel will be limited for a second time to improve the stability of the diamond wire on the wire reel on the winding bracket. The adjustable structure is combined with the detachable structural design, and the wire reel is easy to install and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the base in the utility model.

[0019] Figure 2 It is a structural diagram of the fixing seat in the utility model.

[0020] Figure 3 It is a structural diagram of the positioning ring in the utility model.

[0021] Among them: 1. Base; 101. Anti-slip pad; 102. Mounting seat; 2. Clamping; 201. Wire wheel; 202. Tensioning wheel; 203. Winding bracket; 204. Adjusting bracket; 3. Fixed seat; 301. Bolt plate; 302. Fixing bolt; 4. Groove; 401. Positioning ring; 402. Adjusting bolt; 403. Movable pin; 5. Slide; 501. Screw head; 502. Upper bracket; 503. Lower bracket; 504. Limiting wheel; 505. Screw. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0023] according to Figure 1 , 2 As shown in Figure 3, in this embodiment, a silicon wafer wire cutting device that is easy to replace is proposed, including a base 1, a mounting seat 102, a clamp 2 and a winding bracket 203 are provided at the upper end of the base 1, the clamp 2 and the winding bracket 203 are placed in front of the mounting seat 102, and two wire wheels 201 arranged up and down are provided between the clamp 2 and the winding bracket 203, and the wire wheels 201 are rotatably connected to the mounting seat 102; the diamond wire on the wire drum is wound around the winding bracket 203 and the two wire wheels 201 through shearing, winding and fixing, and the two wire wheels 201 are arranged up and down. When the silicon column fixed on the clamp 2 moves, it will pass between the two wire wheels 201, and the diamond wire in the high-speed moving state will cut the silicon wafer. It should be noted that the cutting fluid needs to be continuously replenished during the cutting process.

[0024] A fixing seat 3 is provided between the wire wheel 201 and the winding bracket 203, and the fixing seat 3 is detachably connected to the mounting seat 102. A groove 4 is provided on the side of the fixing seat 3 away from the mounting seat 102, and a positioning ring 401 is provided in the groove 4. The positioning ring 401 is rotatably connected to the fixing seat 3, and a pin positioning piece for fixing the wire reel is provided on the inner side of the positioning ring 401; when loading and unloading the diamond wire, the staff clamps the wire reel at the end of the positioning ring 401 away from the fixing seat 3, and the pin positioning piece in the positioning ring 401 will preliminarily lock the wire reel.

[0025] A roller support structure for limiting the position of the bobbin is provided in front of the fixed seat 3, and an adjustment component for controlling the opening and closing of the roller support structure is provided at the upper end of the fixed seat 3. After completing the initial locking, the adjustment component at the upper end of the fixed seat 3 will close the roller support structure, and perform a secondary position limit on the bobbin without affecting the rotation of the bobbin, thereby improving the stability of the diamond wire on the bobbin on the winding bracket 203. At the same time, the adjustment type is combined with a detachable structural design, and the bobbin is easy to install and replace.

[0026] The specific structure of the pin locating piece is shown in the following description.

[0027] The pin positioning member includes an adjusting bolt 402 and a movable pin 403. The adjusting bolt 402 is assembled on one side of the positioning ring 401. The movable pin 403 is placed in the positioning ring 401. The adjusting bolt 402 penetrates into the positioning ring 401 and is fixedly connected with the movable pin 403. The adjusting bolt 402 is threadedly connected with the positioning ring 401.

[0028] comprehensive Figure 2 and Figure 3 , the working principle of the pin locating piece is:

[0029] After the end of the bobbin is inserted into the positioning ring 401, the adjusting bolt 402 is rotated and screwed into the adjusting bolt 402, and the movable pin 403 in the positioning ring 401 is inserted into the pin groove at the end of the bobbin to fix the positioning ring 401 and the bobbin.

[0030] About the roller support structure:

[0031] The roller support structure includes an upper bracket 502 and a lower bracket 503. The lower bracket 503 is placed below the upper bracket 502. A limiting wheel 504 is provided at the lower end of the upper bracket 502, and two limiting wheels 504 are provided at the upper end of the lower bracket 503. The limiting wheel 504 at the upper end of the lower bracket 503 limits the position of the bobbin from the lower half of the bobbin, and the limiting wheel 504 at the lower end of the upper bracket 502 limits the position of the bobbin from the upper half of the bobbin. While limiting the position, the bobbin and the positioning ring 401 are supported to rotate.

[0032] The specific structure of the adjustment component is shown in the following description.

[0033] The adjustment component includes two slide grooves 5 opened on the front side of the fixed seat 3, and the two slide grooves 5 are respectively placed above and below the groove 4. A screw 505 is provided in the slide groove 5, and a nut seat is sleeved on the outer side of the screw 505. The nut seat is threadedly matched with the screw 505. The two nut seats are respectively fixedly connected to the upper bracket 502 and the lower bracket 503. A screwing head 501 for controlling the rotation of the screw 505 is provided at the upper end of the fixed seat 3, and the threads on the outer sides of the two screws 505 are in opposite directions.

[0034] comprehensive Figure 2 and Figure 3 , the working principle of the regulation component is:

[0035] The two screw rods 505 are fixed to each other, and the screwing head 501 is fixed to the upper end of the uppermost screw rod 505. When the screwing head 501 rotates, the screwing head 501 drives the two screw rods 505 to rotate together. The two screw rods 505 cooperate with the two nut seats during rotation, driving the two nut seats to move along the rod body of the screw rod 505. The slide groove 5 limits the nut seats. Since the threads on the outer sides of the two screw rods 505 rotate in opposite directions, the upper bracket 502 and the lower bracket 503 move in opposite directions during operation, thereby adjusting the spacing between the upper bracket 502 and the lower bracket 503. The limiting wheel 504 fits with the end of the wire drum without affecting the removal of the wire drum.

[0036] It is worth further explaining that an adjusting bracket 204 is provided at the upper end of the base 1, and the adjusting bracket 204 is placed below the fixing seat 3, and the adjusting bracket 204 is fixedly connected to the mounting seat 102, and a tensioning wheel 202 is provided on the side of the adjusting bracket 204 away from the mounting seat 102, and the tensioning wheel 202 is slidably connected to the adjusting bracket 204. After the diamond wire passes around the two wire wheels 201, it is wound on the winding bracket 203. During this period, the tensioning wheel 202 is needed to tighten the diamond wire to ensure that the diamond wire can effectively cut the silicon column fixed on the clamp 2. The tensioning wheel 202 can slide along the adjusting bracket 204, and the height of the tensioning wheel 202 is adjustable. The tensioning wheel 202 and the adjusting bracket 204 are a relatively common tensioning structure, which will not be described in detail here.

[0037] The fixing seat 3 is fixed to the mounting seat 102 in a detachable connection manner. In a better embodiment, bolt plates 301 are provided on both sides of the fixing seat 3. The bolt plates 301 are fixedly connected to the fixing seat 3. Both ends of the bolt plates 301 are equipped with fixing bolts 302. The fixing bolts 302 pass through the bolt plates 301 and are threadedly connected to the thread grooves provided on the outside of the mounting seat 102. The fixing seat 3 is fixed to the mounting seat 102 in a bolt connection manner. When the fixing seat 3 is removed from the mounting seat 102, the fixing bolts 302 on the bolt plates 301 can be screwed out of the thread grooves on the outside of the mounting seat 102. Disassembly and replacement are convenient.

[0038] In order to prevent the base 1 from sliding on the workbench when the cutting device is working, a plurality of anti-skid pads 101 are provided at the lower end of the base 1, and each anti-skid pad 101 is respectively fixedly connected to each corner of the lower end of the base 1. The anti-skid pad 101 provided at the lower end of the base 1 is used to increase the friction between the base 1 and the workbench, thereby improving the stability of the cutting device when working.

[0039] How this application works:

[0040] The diamond wire on the wire drum is wound around the winding bracket 203 and two wire wheels 201 through shearing, winding and fixing. The two wire wheels 201 are arranged up and down. When the silicon column fixed on the clamp 2 moves, it will pass between the two wire wheels 201. The diamond wire in the high-speed moving state cuts the silicon wafer.

[0041] When loading and unloading the diamond wire, the staff will clamp the wire drum at the end of the positioning ring 401 away from the fixed seat 3, and the pin positioning member in the positioning ring 401 will preliminarily lock the wire drum. After completing the preliminary locking, the adjustment component at the upper end of the fixed seat 3 will close the roller bracket structure, and the wire drum will be limited for a second time without affecting the rotation of the wire drum, thereby improving the stability of the diamond wire on the wire drum on the winding bracket 203. At the same time, the adjustment type is matched with the detachable structural design, and the wire drum is easy to install and replace.

[0042] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0043] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A silicon wafer wire cutting device that is easy to replace, comprising a base (1), wherein the upper end of the base (1) is provided with a mounting seat (102), a clamp (2) and a winding support (203), wherein the clamp (2) and the winding support (203) are placed directly in front of the mounting seat (102), and characterized in that: Two wire wheels (201) arranged vertically are provided between the clamp (2) and the winding bracket (203), and the wire wheels (201) are rotatably connected to the mounting seat (102); A fixing seat (3) is provided between the wire wheel (201) and the winding bracket (203); the fixing seat (3) is detachably connected to the mounting seat (102); a groove (4) is provided on a side of the fixing seat (3) away from the mounting seat (102); a positioning ring (401) is provided in the groove (4); the positioning ring (401) is rotatably connected to the fixing seat (3); a pin positioning member for fixing the wire spool is provided on the inner side of the positioning ring (401); A roller support structure for limiting the position of the bobbin is provided directly in front of the fixed seat (3), and an adjustment component for controlling the opening and closing of the roller support structure is provided at the upper end of the fixed seat (3).

2. The easily replaceable silicon wafer wire cutting device according to claim 1, characterized in that: The pin positioning member comprises an adjusting bolt (402) and a movable pin (403); the adjusting bolt (402) is assembled on one side of the positioning ring (401); the movable pin (403) is placed in the positioning ring (401); the adjusting bolt (402) penetrates into the positioning ring (401) and is fixedly connected to the movable pin (403); and the adjusting bolt (402) is threadedly connected to the positioning ring (401).

3. The easily replaceable silicon wafer wire cutting device according to claim 1, characterized in that: The roller support structure comprises an upper bracket (502) and a lower bracket (503), wherein the lower bracket (503) is placed below the upper bracket (502), a limiting wheel (504) is provided at the lower end of the upper bracket (502), and two limiting wheels (504) are provided at the upper end of the lower bracket (503).

4. The easily replaceable silicon wafer wire cutting device according to claim 3, characterized in that: The adjustment assembly comprises two slide grooves (5) provided on the front side of the fixing seat (3), the two slide grooves (5) being respectively arranged above and below the groove (4), a screw rod (505) being arranged in the slide groove (5), a nut seat being sleeved on the outer side of the screw rod (505), the nut seat being threadedly matched with the screw rod (505), the two nut seats being respectively fixedly connected with the upper bracket (502) and the lower bracket (503), a screwing head (501) for controlling the rotation of the screw rod (505) being arranged at the upper end of the fixing seat (3), and the threads on the outer sides of the two screw rods (505) being in opposite directions.

5. The easily replaceable silicon wafer wire cutting device according to claim 1, characterized in that: An adjusting bracket (204) is provided at the upper end of the base (1), the adjusting bracket (204) is placed below the fixing base (3), the adjusting bracket (204) is fixedly connected to the mounting base (102), a tensioning wheel (202) is provided on a side of the adjusting bracket (204) away from the mounting base (102), and the tensioning wheel (202) is slidably connected to the adjusting bracket (204).

6. The easily replaceable silicon wafer wire cutting device according to claim 1, characterized in that: Bolt plates (301) are provided on both sides of the fixing seat (3), the bolt plates (301) are fixedly connected to the fixing seat (3), and fixing bolts (302) are mounted on both ends of the bolt plates (301), the fixing bolts (302) pass through the bolt plates (301) and are threadedly connected to thread grooves provided on the outside of the mounting seat (102).

7. The easily replaceable silicon wafer wire cutting device according to claim 1, characterized in that: A plurality of anti-skid pads (101) are provided at the lower end of the base (1), and each of the anti-skid pads (101) is fixedly connected to each corner of the lower end of the base (1).

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