CN114311352A - Silicon rod cutting and grinding system and silicon rod cutting and grinding method - Google Patents

Abstract

The embodiment of the application provides a silicon rod cutting and grinding system and a silicon rod cutting and grinding method thereof. Silicon rod cutting grinding system includes: a machine base; the rotary platform is rotatably arranged on the base; the fixing device is fixed on the rotating platform and used for fixing the vertically placed silicon rod; the first cutting device, the second cutting device and the grinding device sequentially surround the outer side of the rotating platform and are fixed on the machine base; the rotating platform is used for rotating the silicon rods fixed by the fixing device to the first cutting device, the second cutting device and the grinding device in sequence for operation. According to the silicon rod cutting and grinding system, on one hand, the overall structure of the silicon rod cutting and grinding system is compact in layout, and on the other hand, the silicon rods can be rapidly and stably taken to each processing device by the rotating platform to perform corresponding processing operation.

Description

Silicon rod cutting and grinding system and silicon rod cutting and grinding method

technical field

The present application relates to the technical field of silicon rod cutting, and in particular, to a silicon rod cutting and grinding system and a silicon rod cutting and grinding method.

Background technique

At present, with the attention and opening of the society to the utilization of green and renewable energy, the field of photovoltaic solar power generation has received more and more attention and development. In the field of photovoltaic power generation, the usual crystalline silicon solar cells are made on high-quality silicon wafers, which are cut by wire saws from pulled or cast silicon rods, that is, wire cutting technology.

Wire cutting technology is a relatively advanced square root processing technology in the world. Its principle is to rub the workpiece (such as silicon rod, sapphire, or other semiconductor hard and brittle materials) with high-speed moving diamond wire to cut out square rods. , so as to achieve the purpose of cutting. Compared with traditional saw blade, grinding wheel and inner circle cutting, wire cutting technology has the advantages of high efficiency, high productivity and high precision.

The existing silicon rod cutting and grinding system can no longer meet the requirements of the photovoltaic industry for silicon wafers.

The above information disclosed in this Background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a new structure of a silicon rod cutting and grinding system and a silicon rod cutting and grinding method thereof.

The embodiment of the present application provides a silicon rod cutting and grinding system, including:

Machine base;

a rotating platform, which is rotatably mounted on the base;

a fixing device, fixed on the rotating platform, for fixing the vertically placed silicon rod;

a first cutting device, a second cutting device and a grinding device, the first cutting device, the second cutting device and the grinding device are sequentially surrounded on the outside of the rotating platform and fixed on the machine base;

Wherein, the rotating platform is used to rotate the silicon rod fixed by the fixing device to rotate to the first cutting device, the second cutting device and the grinding device in turn for operation.

In implementation, the first cutting device and the grinding device are arranged opposite to each other;

The silicon rod cutting and grinding system further includes a transfer device, the transfer device is movably connected on the side of the machine base opposite to the second cutting device;

The fixing device includes a fixing column and at least three longitudinal fixing mechanisms for silicon rods, and each longitudinal fixing mechanism for the silicon rods is installed at the side of the fixing column at intervals.

The embodiment of the present application also provides a method for cutting and grinding a silicon rod, comprising the following steps:

Rotate the rotating platform to rotate the first silicon rod to the first cutting device;

The two cutting head mechanisms of the first cutting device move from top to bottom, and the first silicon rod is cut for the first time to form a first middle rod and two opposite side skins;

Remove the two side skins, and reset the two cutting head mechanisms of the first cutting device upwards;

Continue to rotate the rotating platform, rotate the first intermediate rod to the second cutting device, and at the same time, rotate the second silicon rod to the first cutting device;

The two cutting head mechanisms of the second cutting device move from top to bottom to cut the first middle bar for the second time to form a first square bar and two opposite side skins; at the same time, the two cutting devices of the first cutting device A cutting head mechanism moves from top to bottom, and cuts the second silicon rod for the first time;

The side skin is removed, and the two cutting head mechanisms of the first cutting device and the two cutting head mechanisms of the second cutting device are reset upward.

Due to the adoption of the above technical solutions, the embodiments of the present application have the following technical effects:

In the silicon rod cutting and grinding system of the embodiment of the present application, the fixing device is fixed on the rotating platform, that is, the rotating platform and the fixing device are fixed as a whole, and are rotatably installed on the machine base. The fixing device is used to fix the vertically placed silicon rod, so that the rotation of the rotating platform can drive the vertically placed silicon rod fixed by the fixing device to rotate. The first cutting device, the second cutting device and the grinding device are sequentially surrounded on the outer side of the rotating platform and fixed on the machine base. In this way, the rotating platform rotates and drives the vertically placed silicon rods fixed by the fixing device to rotate to the first cutting device, the second cutting device and the grinding device in turn, and the first cutting device, the second cutting device and the grinding device correspond respectively. processing operations. In the silicon rod cutting and grinding system of the embodiment of the present application, three processing devices—a first cutting device, a second cutting device and a grinding device are arranged around the rotating platform in a surrounding manner, on the one hand, the silicon rod is cut and ground. The overall structure of the system has a compact layout. On the other hand, the rotating platform can quickly and smoothly bring the silicon rods to each processing device for corresponding processing operations.

Description of drawings

1 is a schematic diagram of a cutting process of a silicon rod cutting and grinding system according to an embodiment of the application;

1A is a schematic diagram of a silicon rod cutting and grinding system according to an embodiment of the application;

1B is a schematic diagram of a rotating platform and a fixing device of the silicon rod cutting and grinding system shown in FIG. 1A;

FIG. 1C is a schematic diagram of the fixing device of the silicon rod cutting and grinding system shown in FIG. 1A;

FIG. 1D is a schematic diagram of cutting by a cutting device of the silicon rod cutting and grinding system shown in FIG. 1A;

Fig. 1E is a partial schematic view of the cutting device shown in Fig. 1D;

1F is a schematic diagram of a grinding device of the silicon rod cutting and grinding system shown in FIG. 1A;

2A is a schematic diagram of a loading and unloading device of a silicon rod cutting and grinding system according to an embodiment of the application;

FIG. 2B is a schematic diagram of another angle of FIG. 2A;

Fig. 2C is a partial enlarged view of Fig. 2B;

3A, FIG. 3B and FIG. 3C are schematic diagrams of the transfer device of the silicon rod cutting and grinding system according to the embodiment of the present application;

3D and 3E are schematic views of the upper jaw assembly and the lower jaw assembly of the transfer device of FIG. 3A;

4A is a schematic diagram of a cutting head mechanism of a cutting device of a silicon rod cutting and grinding system according to an embodiment of the present application;

4B is a schematic diagram illustrating the completion of cutting the silicon rod from top to bottom by two cutting head mechanisms of the same cutting device of the silicon rod cutting and grinding system according to the embodiment of the application;

4C and 4D are schematic diagrams of removing the two edge skins formed by one cut in FIG. 4B from the through hole of the machine head;

4E is a schematic diagram of a support frame, a transverse feed mechanism and a vertical feed mechanism of the cutting device shown in FIG. 1A ;

4F is a schematic diagram of the silicon rod longitudinal fixing mechanism of the silicon rod cutting and grinding system shown in FIG. 1A clamping the silicon rod;

FIG. 4G is a schematic diagram of the longitudinal fixing mechanism of the silicon rod shown in FIG. 4F .

Description of reference numbers:

base 1,

Loading and unloading device 2, round bar feeding rack 211, round bar supporting mechanism 212, round bar clamping block 213, round bar clamping cylinder 214, clamping block displacement measuring device 215, loading and unloading support frame 23, feeding and turning cylinder 216, deceleration proximity switch 217, square bar blanking assembly 22,

Transfer device 3, loading and unloading gripper frame 31, transfer hydraulic cylinder 321, gas-liquid converter 322, transfer cylinder 323, transfer gripper fixing plate 331, left gripper 332-1, right gripper 332-2, silicon rod Detection probe 333, vertical guide rail 341, transfer gripper cylinder 351, connecting plate 352, rack 353, synchronizing gear 354, rotary seat 361,

The first cutting device 4-1, the second cutting device 4-2, the grinding device 4-3,

Composite grinding body 4-31, grinding support frame 4-32,

Cutting head mechanism 41, wire saw mounting frame 411, head through hole 411-1, driving wheel assembly 412-1, lower transition wheel 412-2, tension wheel assembly 412-3, upper transition wheel 412-4,

Silicon rod longitudinal fixing mechanism 42, chuck frame 421, upper floating head 422, edge support bracket mounting piece 423-1, support rod fixing piece 423-2, edge skin support rod 423-3, edge support drive cylinder 423- 4. The vertical movement guide rail 424 of the collet frame,

Silicon rod support mount 431, lower floating head 432, lower floating head support head 432-1, edge skin support head 433-1, edge skin support cylinder 433-2, silicon rod rotating shaft 434-1, silicon rod drive motor 434-2,

support frame 44,

Transverse feeding mechanism 451, jigsaw transverse sliding plate 451-1, vertical feeding mechanism 452, jigsaw vertical sliding plate 452-1, blocking latch 461, blocking strip 462,

Side leather clamping mechanism 47, clamping fixed seat 471, primary arm 472-1, secondary arm 472-2, side leather clamping claw 473, side leather clamping claw mounting plate 473-1, bottom clamping claw 473-2 , top jaw 473-3,

Side skin collection assembly 48,

Rotating platform 5,

Fixture 6.

Detailed ways

The exemplary embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The silicon rod cutting and grinding system of the embodiment of the present application is used to vertically cut and grind a circular silicon rod placed vertically. The process of cutting the silicon rod is shown in Figure 1. The round silicon rod is cut twice to form a square rod and four edge skins. After that, the opposing rod is ground. Vertically placed round silicon rods are also called vertically placed round silicon rods.

As shown in FIG. 1A , FIG. 1B , FIG. 1C , FIG. 1D and FIG. 1E , the silicon rod cutting and grinding system according to the embodiment of the present application includes:

base 1;

The rotating platform 5 is rotatably mounted on the base 1;

A fixing device 6, fixed on the rotating platform 5, is used for fixing the silicon rod placed vertically;

The first cutting device 4-1, the second cutting device 4-2 and the grinding device 4-3, the first cutting device 4-1, the second cutting device 4-2 and the grinding device 4-3 are sequentially surrounded by the The outer side of the rotating platform is fixed on the base;

Wherein, the rotating platform 5 is used to rotate the silicon rods fixed by the fixing device 6 to the first cutting device 4-1, the second cutting device 4-2 and the grinding device 4-3 for operation in sequence.

In the silicon rod cutting and grinding system of the embodiment of the present application, the fixing device is fixed on the rotating platform, that is, the rotating platform and the fixing device are fixed as a whole, and are rotatably installed on the machine base. The fixing device is used to fix the vertically placed silicon rod, so that the rotation of the rotating platform can drive the vertically placed silicon rod fixed by the fixing device to rotate. The first cutting device, the second cutting device and the grinding device are sequentially surrounded on the outer side of the rotating platform and fixed on the machine base. In this way, the rotating platform rotates and drives the vertically placed silicon rods fixed by the fixing device to rotate to the first cutting device, the second cutting device and the grinding device in turn, and the first cutting device, the second cutting device and the grinding device correspond respectively. processing operations. In the silicon rod cutting and grinding system of the embodiment of the present application, three processing devices—a first cutting device, a second cutting device and a grinding device are arranged around the rotating platform in a surrounding manner, on the one hand, the silicon rod is cut and ground. The overall structure of the system has a compact layout. On the other hand, the rotating platform can quickly and smoothly bring the silicon rods to each processing device for corresponding processing operations.

As an optional manner, the first cutting device and the grinding device are disposed opposite to each other;

The silicon rod cutting and grinding system further includes a transfer device, the transfer device is movably connected on the side of the machine base opposite to the second cutting device;

The fixing device includes a fixing column and at least three longitudinal fixing mechanisms for silicon rods, and each longitudinal fixing mechanism for the silicon rods is installed at the side of the fixing column at intervals.

There are at least three longitudinal fixing mechanisms for the silicon rods, so that the three processing devices can work simultaneously in cooperation with the three processing devices.

In implementation, as shown in FIG. 1A , the first cutting device 4-1 and the grinding device 4-3 are disposed opposite to each other;

The silicon rod cutting and grinding system further includes a transfer device 3, and the transfer device 3 is movably connected on the side of the machine base 1 opposite to the second cutting device 4-2;

The fixing device includes a fixing column and four longitudinal fixing mechanisms 42 for silicon rods, and the four longitudinal fixing mechanisms 42 for silicon rods are installed at the side surfaces of the fixing column in a manner of facing each other.

In this way, the four longitudinal fixing mechanisms of the silicon rods of the fixing device can be respectively arranged opposite to the side where the first cutting device, the second cutting device, the grinding device and the transfer device are arranged. The longitudinal fixing mechanism of the silicon rod is located on the same side as the transfer device, and the transfer device can transfer the silicon rod to the position of the longitudinal fixing mechanism of the silicon rod on the same side for fixing. The rotating platform is rotated 90 degrees, and the silicon rod is rotated to the first cutting device for the first cutting, forming a middle rod and two side skins arranged opposite to each other; after removing the two edge skins; the rotating platform is rotated 90 degrees again, The middle bar is rotated to the second cutting device, and the middle bar is rotated 90 degrees and then the second cutting is performed to form a square bar and two side skins arranged opposite to each other; after the two side skins are removed; the rotating platform is again After turning 90 degrees, the square bar is rotated to the grinding device for grinding; after the grinding is completed, the rotating platform is rotated 90 degrees again, and the square bar is rotated to the transfer device, and the transfer device takes the ground square bar away. For the convenience of description, a process of processing a silicon rod is described here. The silicon rod cutting and grinding system of the embodiment of the present application can process three silicon rods in sequence, and part of the processing time of the three silicon rods overlaps.

Specifically, the axes of the fixed column and the rotating platform are coincident. In this way, when the fixed column and the rotating platform rotate, the phenomenon of eccentricity will not occur, and the wear and tear is small.

Specifically, the fixing column is a square column, and the four longitudinal fixing mechanisms of the silicon rods are installed on the four sides of the square column in a two-by-two manner.

In this way, the square column and the longitudinal fixing mechanism of the four silicon rods form a cross-shaped arrangement structure. The square column can facilitate the installation of the longitudinal fixing mechanism of the silicon rod.

In implementation, as shown in FIG. 1A , the silicon rod cutting and grinding system further includes:

Loading and unloading device 2, the transfer device is installed between the fixing device and the loading and unloading device; wherein, the loading and unloading device 2 is used for the feeding of circular silicon rods and the unloading of square rods formed by cutting;

The transfer device 3 is used for transferring the silicon rods loaded by the loading and unloading device 2 to the fixing device, and for transferring the ground square rods to the loading and unloading device 2 . That is, the transfer device is used to realize the transfer of silicon rods and square rods between the loading and unloading device 2 and the fixing device;

Wherein, the transfer device can be rotated to face the loading and unloading device and the fixing device, and the transfer device can also be rotated from the first direction between the loading and unloading device and the fixing device, and between the machine base It moves in a second direction that is up and perpendicular to the first direction, so as to realize the precise transfer of the silicon rods between the loading and unloading device 2 and the fixing device.

The first cutting device, the second cutting device and the grinding device share a set of loading and unloading device 2 and transfer device 3, so that the silicon rod cutting and grinding system has fewer components and occupies less space.

Specifically, the first cutting device and the second cutting device are cutting devices with the same structure.

Structure of Grinding Device of Silicon Rod Cutting Grinding System

In practice, as shown in Figure 1F, the grinding device includes:

Grinding the supporting frame 4-32 and fixing it on the machine base;

The composite grinding body 4-31 for rough grinding and fine grinding of the opposite bar is installed on the positive side of the grinding support frame 4-32, and the composite grinding body can move from top to bottom to the vertically placed side. The rod is ground.

The grinding support frame is the installation base of the grinding device. The composite grinding body can move from top to bottom, and perform rough grinding and fine grinding on the square bar after cutting and placed vertically.

The structure of the cutting device of the silicon rod cutting and grinding system

In implementation, as shown in FIG. 1A , FIG. 1D and FIG. 1E , the cutting device includes:

a support frame 44, fixed on the base;

Two cutting head mechanisms 41 are installed on the front side of the support frame 44, and the two cutting head mechanisms 41 can move up and down synchronously to cut the silicon rod and form two opposite edges;

Two edge skin clamping mechanisms 47 are respectively fixed and installed on two sides of the support frame 44;

The side skin collecting assembly 48 is fixedly installed on the back side of the supporting frame 44;

Wherein, the two edge skin clamping mechanisms 47 are used for the open ends of the edge skin clamping mechanisms 47 to move toward each other and enter between the two cutting machine head mechanisms 41 to clamp the two edge skins and move opposite to each other. Exit between the two cutting head mechanisms 41 , and place the edge skin into the edge skin collection assembly 48 .

In this way, the two cutting head mechanisms installed on the front side of the support frame move up and down synchronously to cut the silicon rod to form two opposite side skins, and the two sides of the support frame are respectively fixed and installed two side wallets The holding mechanism can hold the two side skins and place the two side skins into the side skin collecting assembly fixed on the back side of the support frame. It can be seen from this that the cutting device is based on the support frame, and realizes cutting, removal of the edge skin after clamping and collection of the edge skin. On the one hand, the cutting device integrates multiple functions and has a compact layout, and on the other hand, the cutting device can quickly collect the edge skins.

In implementation, as shown in FIG. 1A , FIG. 1D and FIG. 1E , the edge skin clamping mechanism 47 includes:

Clamping and fixing base 471, fixed on the side of the support frame;

A primary arm 472-1 and a secondary arm 472-2, two ends of the primary arm 472-1 are hingedly connected to the clamping fixing base 471 and one end of the secondary arm 472-2;

The edge skin clamping claw 473 is hinged on the side of the secondary arm 472-2 away from the primary arm 472-1;

The clamping control unit is used for controlling the rotation of the primary arm, the secondary arm and the edge skin clamping claw.

In this way, the hinged joint between the clamping fixed seat and the primary arm, the hinged joint between the primary arm and the secondary arm, and the hinged joint between the secondary arm and the edge skin clamping claw are connected by the rotating shaft and the shaft hole respectively. The clamping control unit controls the rotation of the primary arm, the secondary arm and the edge skin clamping claw, so that the edge skin clamping mechanism can move flexibly, and the edge skin can be clamped from the front side of the support frame and taken out and placed on the support frame. The back side of the leather collection assembly inside.

In practice, as shown in FIG. 1E , the edge skin clamping claw 473 includes:

Side leather gripper mounting plate 473-1;

The bottom clamping jaw 473-2 is fixed on the bottom end of the front side of the side leather clamping jaw mounting plate 473-1, and the bottom clamping jaw 473-2 is used to carry the lower end surface of the vertically arranged silicon rod;

The top jaw 473-3 is slidably connected to the upper end of the front side of the side leather jaw mounting plate 473-1, and the top jaw 473-3 can move up and down.

The top jaw can move up and down so that the distance between the top and bottom jaws can be adjusted. The bottom clamping jaw can carry the lower end face of the vertically arranged silicon rod, and the top clamping jaw can move downward to press on the upper end face of the silicon rod, so as to realize the clamping of the edge skin.

In order to conveniently take out the edge skin after cutting, the structure of the cutting head mechanism of the cutting device is improved.

In practice, the cutting head mechanism 41 is used to form transversely arranged cutting segments to cut the vertically arranged silicon rods. As shown in FIG. 4A , FIG. 4B , FIG. 4C and FIG. 4D , the cutting head mechanism 41 includes:

A wire saw mounting frame 411, the wire saw mounting frame 411 has a vertical head through hole 411-1;

The annular diamond wire is arranged on the positive side of the wire saw mounting frame 411, and the cutting section of the annular diamond wire and the head through hole 411-1 are staggered, that is, do not interfere with each other; wherein, the cutting section is the annular diamond wire in The part of the movement used to cut the silicon rod;

Wherein, the two edge skin clamping claws 473 are used to move toward each other from the through hole 411-1 of the machine head to enter between the two cutting machine head mechanisms 41 to clamp the edge skin, and move in opposite directions. Exit between the two cutting head mechanisms 41 from the head through hole 411 - 1 , and take out the edge skin from between the two cutting head mechanisms 41 .

The edge skin clamping claw passes forward through the machine head through hole, and the edge skin clamping mechanism holds the edge skin; after that, the edge skin is passed through the machine head through hole 411-1 backward with the edge skin, so as to remove the edge skin. The jigsaw mount itself does not need to move during this process. For the cutting device, since the wire saw mounting frame is provided with a through hole for the machine head, the wire saw mounting frame does not need to be moved during the process of removing the edge skin, which saves time and improves the efficiency of removing the edge skin. The process is relatively simple, which makes the silicon rod cutting and grinding system more efficient.

Specifically, the head through hole 411-1 is a vertically elongated head through hole.

Specifically, the wire saw mount is a rigid wire saw mount.

In implementation, as shown in FIG. 4A , FIG. 4B , FIG. 4C and FIG. 4D , the cutting section is a laterally arranged cutting section and is lower than the head through hole 411 - 1 .

The cutting head mechanism can move from top to bottom to cut the silicon rod. During the top-down movement of the cutting head mechanism, the horizontally arranged cutting sections cut the vertically arranged silicon rods from top to bottom. After the cutting is completed, the cutting section is lower than the lower end face of the silicon rod. At this time, in the process that the edge skin is removed through the through hole of the machine head, since the cutting section is lower than the through hole of the machine head, the cutting section will not interfere with the moving edge skin.

In implementation, as shown in Figure 4A, the cutting head mechanism further includes:

The driving wheel assembly 412-1 and the lower transition wheel 412-2 are respectively arranged on the positive side of the wire saw mounting frame 411;

The tension wheel assembly 412-3 and the upper transition wheel 412-4 are respectively arranged on the positive side of the wire saw mounting frame 411;

The endless diamond wire is wound around the driving pulley of the driving pulley assembly 412-1, the lower transfer pulley 412-2, the tension pulley of the tension pulley assembly 412-3, and the outer peripheral surface of the upper transfer pulley 412-4. The bottom ends of the driving wheel and the lower transition wheel form the cutting section, and the diamond wire and the through hole of the machine head do not interfere with each other.

The drive wheel assembly is provided on the lower portion of the positive side of the wire saw mount. The tension wheel assembly applies tension to the ring diamond wire, so that the ring diamond wire maintains a certain tension to effectively cut the silicon rod. The lower transition wheel and the upper transition wheel adjust the direction of the annular diamond wire.

In implementation, as shown in FIG. 4E, the cutting device 4 further includes:

A transverse feeding mechanism 451 corresponding to the cutting head mechanism 41 one-to-one, the cutting head mechanism and the corresponding transverse feeding mechanism 451 are fixed and the two cutting segments are arranged oppositely, the transverse feeding The mechanism 451 is relatively slidably connected with the support frame to drive the two cutting segments to approach and move away. Wherein, the transverse feeding mechanism 451 is used to drive the two cutting head mechanisms 41 to move toward and away from each other and to adjust the distance between the cutting sections of the two cutting head mechanisms of the same cutting device.

In this way, driven by the two transverse feed mechanisms, the two cutting head mechanisms of the same cutting device can approach and move away, so that the distance between the cutting segments of the two cutting head mechanisms of the same cutting device can be adjusted. That is, the two cutting sections of the same cutting head mechanism are arranged in parallel and the distance between the two cutting sections is adjustable. The beneficial effect is that the cutting device can be suitable for cutting silicon rods of various diameters, so that the cutting device has strong versatility.

The transverse feeding mechanism and the vertical feeding mechanism are formed to form a feeding mechanism.

In implementation, as shown in Figure 4E, the cutting device further includes:

The vertical feeding mechanisms 452 corresponding to the transverse feeding mechanisms are respectively vertically fixed on the same side of the support frame 44, and the vertical feeding mechanisms 452 and the corresponding transverse feeding mechanisms 451 fixed to drive the cutting head mechanism to move in the vertical direction;

Wherein, the two vertical feeding mechanisms 452 are used to drive the two transverse feeding mechanisms to move in the vertical direction, thereby driving the cutting head mechanism to move in the vertical direction.

In this way, the vertical feeding mechanism can drive the corresponding lateral feeding mechanism to move in the vertical direction, thereby driving the cutting head mechanism and its cutting section to move in the vertical direction, so as to realize the automatic movement of the vertically placed silicon rods in the vertical direction. It cuts from top to bottom, and drives the cutting head mechanism and its cutting section to reset after each cutting is completed.

In implementation, as shown in Figure 4E, the transverse feed mechanism includes:

A wire saw lateral guide screw, the nut of the wire saw lateral guide screw is fixed at the vertical feeding mechanism; wherein, the guide direction of the guide rail of the wire saw lateral guide screw is two of the cutting the direction in which the segment approaches and moves away;

The wire saw transverse slide plate 451-1 is fixed with the slider of the wire saw transverse guide screw and with the cutting head mechanism;

a wire saw transverse drive motor and a wire saw transverse reducer, the wire saw transverse drive motor and the wire saw transverse reducer are connected to output rotational motion to the wire saw transverse guide screw;

Wherein, the wire saw lateral guide screw is used to convert the received rotary motion into linear motion along the guide rail of the wire saw lateral guide screw, and the slider and the wire of the wire saw lateral guide screw pass through the wire saw. The transverse sliding plate of the saw drives the cutting head mechanism to move in the transverse direction.

The wire saw transverse guide screw and the wire saw transverse slide plate realize the transverse feeding mechanism through a simple structure.

In implementation, as shown in Figure 4E, the vertical feeding mechanism includes:

The wire saw vertical guide screw, the nut of the wire saw vertical guide screw is fixed at the support frame; wherein, the guide direction of the guide rail of the wire saw vertical guide screw is the vertical direction of up and down ;

The vertical sliding plate 452-1 of the wire saw is fixed with the slider of the vertical guide screw of the wire saw and fixed with the screw nut of the horizontal guide screw of the wire saw;

A wire saw vertical drive motor and a wire saw vertical reducer, the wire saw vertical drive motor and the wire saw vertical reducer output rotational motion to the wire saw vertical guide screw;

Wherein, the wire saw vertical guide screw is used to convert the received rotational motion into linear motion along the guide rail of the wire saw vertical guide screw, and through the sliding movement of the wire saw vertical guide screw The block drives the transverse feed mechanism and the cutting head mechanism to move in the vertical direction.

The nut and the support frame of the vertical guide screw of the wire saw are fixed as a whole and are fixed relative to the machine base. The slider of the vertical guide screw of the wire saw and the screw nut of the horizontal guide screw of the wire saw are fixed as a whole. The slider of the vertical guide screw of the wire saw, the vertical sliding plate of the wire saw and the nut of the horizontal guide screw of the wire saw can move in the vertical direction as a whole, and then drive the transverse feed mechanism to move in the vertical direction, thereby driving The cutting head mechanism and its cutting segments move in the vertical direction.

In implementation, the cutting device also includes:

The feed control unit is respectively connected with the two wire saw transverse drive motors and the two wire saw vertical drive motors of the same cutting device, and is used for controlling the distance between the cutting segments of the two cutting head mechanisms, and also uses It is used to control the movement of the two cutting head mechanisms in the vertical direction.

The feed control unit, the horizontal drive motor of the wire saw and the vertical drive motor of the wire saw cooperate to realize the convenient control of the distance between the cutting sections of the two cutting head mechanisms in the lateral direction, and also realize the two cutting heads. The movement of the cutting section of the mechanism in the vertical direction cuts, that is, the cutting can be controlled.

In implementation, as shown in FIG. 4E , the vertical feeding mechanism further includes:

Blocking plugs 461, the sockets of the blocking plugs 461 are fixed on the upper part of the side surface of the support frame 44;

The blocking strip 462 is laterally fixed at the vertical sliding plate 452-1 of the wire saw;

Wherein, when the cutting head mechanism moves to the highest position, the blocking pin is used to extend the plug of the blocking pin to block the downward movement of the blocking bar, thereby preventing the vertical sliding plate and cutting of the jigsaw. The nose mechanism moves downward.

Through the cooperation of the blocking latch and the blocking strip, the vertical sliding plate movement of the wire saw is realized through the mechanical structure. When the cutting head mechanism moves to the highest position, personnel need to enter under the cutting head mechanism to maintain the equipment, and the cutting head mechanism may fall down accidentally, causing personal injury. It is ensured that the cutting head mechanism does not fall accidentally by means of a mechanical block blocking the engagement of the latch and the blocking strip.

The structure of the fixing device of the silicon rod cutting and grinding system

In implementation, as shown in FIG. 1C and FIG. 4F , the longitudinal fixing mechanism 42 of the silicon rod includes:

The vertical movement guide rail 424 of the collet frame is fixed on the side surface of the fixed column;

A collet frame 421, the collet frame is slidably connected to the vertical motion guide rail of the collet frame;

The upper floating head 422 is installed at the chuck frame 421; the chuck frame can move the guide rail up and down along the vertical direction of the chuck frame, so as to drive the upper floating head to press on the vertically placed silicon rod. The end face and the upper end face leaving the ground bar;

The edge support bracket is connected to the chuck frame 421 and can be extended downward and reset upward. The edge support bracket is used to extend downward and rest on the outer peripheral surface of the silicon rod. The edge support bracket Also used to reset the outer perimeter of the silicon rod upwards.

The collet holder is the mounting base. The upper floating head is used to press the upper surface of the vertically placed silicon rod to realize the vertical clamping of the silicon rod. During the process of cutting and grinding the silicon rod, the upper floating head itself can be inclined at a preset angle to reduce or offset the stress generated by the cutting. In order to prevent the edge skin formed by the cut silicon rod from falling over, a support edge skin support is provided. The edge support bracket is connected with the chuck frame, and the edge support bracket can be extended downward and reset upward. In this way, after the cutting section is placed on the upper end surface of the silicon rod, the edge support bracket is extended downward and supported on the outer peripheral surface of the silicon rod, so that the silicon rod is cut in the cutting section to form a square rod and edge skin, and the edge support bracket Hold the edge skin on the outside of the upper end to avoid the possibility of the edge skin falling. When the side skin needs to be taken off, the side support bracket is reset upward and no longer contacts with the side skin, so that the side skin can be removed.

Specifically, the collet holder is a rigid collet holder.

Specifically, the chuck frame can move up and down, and the upper floating head is used to press the upper end face of the vertically placed silicon rod.

Specifically, the upper floating head is installed on the downward end face of the collet frame.

In this way, the upper floating head can be conveniently pressed against the upper end face of the vertically placed silicon rod, and can also be conveniently separated from the upper end face of the cut silicon rod.

In implementation, as shown in Figure 4F, the edge support bracket includes:

The edge support bracket mounting piece 423-1 is fixed with the chuck frame;

The support rod fixing member 423-2 and the edge skin support rod 423-3, the edge skin support rod 423-3 is fixed on the side of the support rod fixing member 423-2 away from the upper floating head and protrudes downwards ;

The edge cover driving device is respectively connected with the edge support bracket mounting part and the support rod fixing part, and is used to drive the support rod fixing part and the edge skin support rod to extend downward and reset upward.

Specifically, as shown in FIG. 4F, the edge support driving device is a edge support driving cylinder 423-4, and the cylinder body of the edge support driving cylinder is fixed to the edge support bracket mounting member 423-1, The guide rod of the edge support driving cylinder is fixed with the support rod fixing member 423-2, and the guide rod of the edge support driving cylinder is extended and retracted to drive the support rod fixing member 423-2 and the edge skin support rod 423-3 extends down and resets up.

The support rod fixing piece and the edge skin support rod are fixed as a whole, and are connected with the edge support skin bracket mounting piece through the edge support skin driving cylinder. The guide rod of the edge skin driving cylinder is extended, the support rod fixing part and the edge skin support rod extend downward as a whole, and the edge skin support rod is supported on the outer peripheral surface of the silicon rod. The guide rod of the edge skin driving cylinder is retracted, the support rod fixing part and the edge skin support rod are retracted upward as a whole, which drives the edge skin support rod to retract upward and leave the silicon rod.

In implementation, as shown in FIG. 4F , four edge leather support rods 423 - 3 are fixed around one support rod fixing member 423 - 2 .

In this way, the two edge skins are supported on the outer peripheral surface of the silicon rod by the four edge skin support bars of a support rod fixing part, and each edge skin is supported by two edge skin support bars.

After the cutting section is placed on the upper end face of the vertically placed silicon rod, the edge skin support bar extends downward and supports the outer peripheral surface of the silicon rod. After a single cut is completed, the edge bar is retracted upward to remove the two edges.

In implementation, as shown in FIG. 4G , the longitudinal fixing mechanism of the silicon rod further includes:

The silicon rod support mount 431, the silicon rod support mount 431 is fixed on the rotating platform;

The lower floating head 432 used to support the lower end face of the vertical silicon rod, the lower floating head is installed above the silicon rod supporting seat 431 .

In this way, during the cutting process of the silicon rod, the lower flying head itself can be inclined at a preset angle to reduce or offset the stress generated by the cutting. When the cutting section of the cutting head mechanism is cut from top to bottom, the stress generated by cutting will be reduced or offset by the inclination of the lower floating head, thereby preventing edge chipping when cutting to the lower part of the silicon rod.

In implementation, as shown in FIG. 4G , the longitudinal fixing mechanism of the silicon rod further includes an edge skin supporting component, and the edge skin supporting component includes:

The drive device for edge skin support is fixed on the silicon rod support mounting seat 431 and is spaced from the lower floating head;

The edge skin support head 433-1 used to support the edge skin position after being cut in the lower end surface of the silicon rod, the edge skin support head 433-1 is fixed on the top of the drive device for edge skin support; wherein, the edge skin support head 433-1 The driving device for edge skin support is used for locking the edge skin support head when the silicon rod is cut into square rods and edge skins so as to keep the edge skin support head high to support the edge skin.

The process of fixing the silicon rod by the longitudinal fixing mechanism of the silicon rod is as follows:

First, the side skin support head is at the initial position, and the top of the side skin support head in the initial position is lower than the top of the lower floating head support head;

After that, place the silicon rod on the lower floating head, after the supporting head of the lower floating head is supported with the lower end face of the silicon rod;

Then, the side skin support head is pushed upward and the height of the side skin support head is locked by the driving device for the side skin support;

Finally, the upper floating head is pressed against the upper end face of the silicon rod.

When the cutting section of the cutting machine head mechanism is cut from top to bottom, the stress generated by the cutting drives the lower floating head to tilt slightly, and the edge skin support head always keeps supporting the edge skin; in this way, the lower floating head and the edge skin support The head is matched to reduce or offset the stress generated by cutting, thereby preventing edge chipping when cutting to the lower part of the silicon rod.

In implementation, as shown in FIG. 4G , the driving device for supporting the side skin is a cylinder 433-2 for supporting the side skin;

The cylinder body of the edge skin supporting cylinder 433-2 is fixed to the silicon rod support mounting seat 431, and the guide rod of the edge skin supporting cylinder 433-2 is fixed to the edge skin supporting head 433-1.

In implementation, as shown in FIG. 4G , the lower floating head has three lower floating head supporting heads 432-1 protruding upward, and the three lower floating head supporting heads 432-1 are located at three vertices of a triangle. The three lower flying head support heads can define a plane such that each of the three lower flying head support heads supports the lower end face of the silicon rod.

In implementation, the upper floating head has three downwardly protruding upper floating head pressing heads, and the three upper floating head pressing heads are located at three vertices of a triangle. The three upper floating head pressing heads can define a plane, so that each of the three upper floating head pressing heads is pressed against the lower end face of the silicon rod.

When the cutting section of the cutting machine head mechanism is cut from top to bottom, the lower floating head is slightly inclined by the stress generated by the cutting, and the upper floating head can compensate, so that the silicon rod can be stably clamped in the lower floating head between the head and the upper floating head.

In implementation, there are four edge skin support components, and the four edge skin support components are located at four vertices of a rectangle; two edge skin support components are used to support one edge skin formed by cutting a silicon rod.

A pair of side skin supporting components can effectively support one side skin.

In implementation, as shown in FIG. 4G , the longitudinal fixing mechanism of the silicon rod further includes a silicon rod rotating assembly, and the silicon rod rotating assembly includes:

The silicon rod rotating shaft 434-1, the lower floating head is fixed on the silicon rod rotating shaft 434-1, and the silicon rod rotating shaft 434-1 is rotatably connected on the silicon rod supporting mount 431;

A silicon rod driving motor 434-2 is fixed under the silicon rod supporting seat 431, and is connected with the silicon rod rotating shaft 434-1 to drive the silicon rod rotating shaft 434 to rotate.

After the first cut of the silicon rod, the middle rod and the two edge skins are formed and the two edge skins are removed. Through the rotation of the rotating platform, move the middle rod to the relative position of the second cutting device, and at this time, move the side skin support head downward to reset. The silicon rod driving motor drives the silicon rod rotating shaft to rotate 90 degrees, and drives the lower floating head and the silicon rod sandwiched between the lower floating head and the upper floating head to rotate 90 degrees. In order to realize the 90-degree rotation of the silicon rod, the silicon rod driving motor can actively drive the silicon rod rotating shaft to rotate 90 degrees, and the silicon rod passively rotates 90 degrees to prepare for the second cutting of the second cutting device.

The structure of the transfer device of the silicon rod cutting and grinding system

As shown in Figure 1A, Figure 3A, Figure 3B and Figure 3C, the transfer device 3 of the silicon rod cutting and grinding system includes:

Loading and unloading jaw frame 31;

The upper jaw assembly and the lower jaw assembly are installed on the same side of the upper and lower clamping jaw frame 31 in parallel with the upper and lower intervals;

The transfer driving assembly is used for driving the upper clamping jaw assembly to move up and down relative to the lower clamping jaw assembly in the vertical direction, and also for driving the upper clamping jaw assembly and the lower clamping jaw assembly to move up and down synchronously. Wherein, the direction of up and down movement of the upper jaw assembly and the lower jaw assembly is the vertical direction.

Specifically, the transfer driving assembly includes an upper jaw transfer driving device, which is respectively fixed to the lower jaw assembly and the upper jaw assembly and drives the upper jaw assembly to move up and down relative to the lower jaw assembly;

The lower jaw transfer driving device is respectively fixed to the upper and lower jaw frame and the lower jaw assembly and drives the lower jaw assembly, the upper jaw assembly and the upper jaw transfer drive device to move up and down synchronously.

By transferring the drive assembly, two functions are realized, one is that the upper jaw assembly can move upward independently to increase the distance between the upper and lower jaw assemblies, and it can move downward independently to make the upper jaw assembly The distance between the lower jaw assembly and the lower jaw assembly is reset and reduced. In this way, when the silicon rod or square rod is short, the distance between the upper jaw assembly and the lower jaw assembly may not need to be adjusted, and only the lower jaw assembly needs to be clamped; when the silicon rod or square rod is long , the distance between the upper jaw assembly and the lower jaw assembly can remain unchanged, and the upper jaw assembly and the lower jaw assembly can be clamped at the same time; when the silicon rod or square rod is special, the upper jaw assembly can be increased The distance between the lower jaw assembly and the lower jaw assembly can hold the silicon rod or square rod stably during transportation. The second is that the transfer device holds the silicon rod or square rod. When it needs to be lifted and rotated, the distance between the upper jaw assembly and the lower jaw assembly remains unchanged and moves upward synchronously. The silicon rod that is about to be clamped Or the square rod is lifted to transfer the silicon rod or square rod; after the silicon rod or square rod is transported in place, the distance between the upper gripper assembly and the lower gripper assembly remains unchanged, and the The stick or square stick is put down.

In implementation, as shown in Figure 3C, the transport drive assembly includes:

Rotating the hydraulic cylinder 321, the cylinder body of the rotating hydraulic cylinder 321 is fixed on the bottom of the upper and lower material clamping jaw frame 31, and the upper end of the guide rod of the rotating hydraulic cylinder 321 is fixed with the lower jaw assembly;

The gas-liquid converter 322 is connected with the rotation hydraulic cylinder 321; wherein, the gas entering the gas-liquid converter 322 squeezes the hydraulic oil into the rotation hydraulic cylinder 321, and drives the rotation hydraulic cylinder 321 The guide rod pushes up the lower jaw assembly; that is, the upper jaw transfer drive device includes a rotary hydraulic cylinder 321 and a gas-liquid converter 322;

The transfer cylinder 323, the cylinder body of the transfer cylinder 323 is fixed with the lower jaw assembly, and the upper end of the guide rod of the transfer cylinder 323 is fixed with the upper jaw assembly; wherein, the air source enters the transfer cylinder 323. The gas drives the guide rod of the transfer cylinder 323 to push up the upper jaw assembly; that is, the lower jaw transfer drive device includes a transfer cylinder 323 .

The combination of the transfer hydraulic cylinder and the transfer cylinder makes the structure of the transfer drive assembly smaller, and can make the overall structure of the transfer device smaller.

Specifically, when the short silicon rod is clamped, the transfer cylinder is reset and retracted and the transfer hydraulic cylinder is extended; when the short silicon rod is clamped, the transfer cylinder and the transfer hydraulic cylinder are extended simultaneously.

For example, when the length of the silicon rod is greater than or equal to 150mm and less than or equal to 400mm, only the lower jaw assembly clamps the round silicon rod before cutting or the square rod after cutting, and then turns the hydraulic cylinder to lift the silicon rod or square rod. rod for transport.

When the length of the silicon rod is greater than 400mm and less than or equal to 850mm, the distance between the upper gripper jaw assembly and the lower gripper jaw assembly remains unchanged, and they jointly participate in clamping the round silicon rod before cutting or the square rod after cutting.

When the length of the silicon rod is greater than 850mm, the upper jaw assembly and the lower jaw assembly jointly participate in clamping the round silicon rod before cutting or the square rod after cutting, wherein the upper jaw assembly can move up and down due to the function of the transfer cylinder. The vertical direction of the jaw frame moves up and down, adapting to the clamping action of different lengths of round silicon rods before cutting or square rods after cutting.

In practice, as shown in FIGS. 3A , 3D and 3E, the upper jaw assembly and the lower jaw assembly each include:

Transfer gripper fixing plate 331;

The left gripper 332-1 and the right gripper 332-2 are fixed on the front side of the transfer gripper fixing plate 331 and are oppositely arranged, and the left gripper 332-1 and the right gripper 332-2 can approach and move away from , to realize clamping and loosening; wherein, the side of the transfer jaw fixing plate that fixes the left jaw and the right jaw is the positive side of the transfer jaw fixing plate;

The silicon rod detection assembly is fixed on the positive side of the transfer gripper fixing plate 331, and the silicon rod detection probes 333 of the silicon rod detection assembly are located on the left gripper 332-1 and the right gripper 332- between 2;

The transfer device also includes a silicon rod detection processing unit, which is connected to the silicon rod detection assembly 333; wherein:

The silicon rod detection assembly is used to maintain a gap between the left gripper 332-1 and the right gripper 332-2 relatively far away from the silicon rod, that is, the silicon rod is not clamped, and the bottom of the silicon rod is placed to float downward. When rotating above the head, the silicon rod detection probe 333-1 of the silicon rod detection assembly keeps pressing on the outer peripheral surface of the silicon rod;

The silicon rod detection processing unit is configured to obtain the position of the crystal line of the silicon rod according to the signal of the silicon rod detection probe of the silicon rod detection component, and determine whether the silicon rod meets the preset silicon rod standard.

In implementation, as shown in Figure 3A, Figure 3B and Figure 3C, the transport device further comprises:

Two vertical guide rails 341 are vertically arranged on one side of the transfer jaw fixing plate 331 in parallel;

Two transfer jaw sliders are fixed on the back side of the transfer jaw fixing plate 331, and the transfer jaw sliders are slidably connected to the vertical guide rail 341;

The upper end of the guide rod of the transfer hydraulic cylinder 321 is fixed to the transfer jaw fixing plate of the lower jaw assembly, and the upper end of the guide rod of the transfer cylinder 323 is fixed to the transfer jaw fixing plate of the upper jaw assembly. fixed.

The rotating hydraulic cylinder can drive the entire lower jaw assembly to move up and down relative to the upper and lower material clamping jaw frame in the height direction of the upper and lower material clamping jaw frame. The transfer cylinder can drive the entire upper jaw assembly to move up and down in the vertical direction relative to the lower jaw assembly.

In practice, each of the upper jaw assembly and the lower jaw assembly further comprises:

a clamping jaw synchronous reverse movement assembly, the left clamping jaw and the right clamping jaw are installed with the transfer clamping jaw fixing plate through the clamping jaw synchronous reverse movement assembly;

Wherein, the synchronous and reverse movement assembly of the clamping jaws is used to drive the left clamping jaw and the right clamping jaw to move synchronously and reversely so as to approach and move away from each other.

In this way, the left gripper and the right gripper can easily hold the silicon rod and simultaneously release the silicon rod.

Specifically, as shown in FIG. 3D and FIG. 3E , the synchronous and reverse motion components of the jaws include:

The transfer gripper cylinder 351, the cylinder body of the transfer gripper cylinder 351 is fixed with the transfer gripper fixing plate 331;

Two connecting plates 352, the upper end of the guide rod of the transfer gripper cylinder 351 is fixed with one of the connecting plates;

two racks 353, the racks 353 are respectively fixed on the opposite sides of the two connecting plates 352;

The synchronizing gear 354 meshes with the two racks 353 .

In this way, the left gripper and the right gripper can easily hold the silicon rod or the square rod at the same time.

In implementation, the transfer device also includes:

A transfer rotation mechanism, the upper and lower material clamping jaw frames are fixed on the transfer rotation mechanism, and the transfer rotation mechanism is installed on the machine base of the silicon rod cutting and grinding system;

Wherein, the transfer and rotation mechanism is used to drive the frame of the loading and unloading jaws to rotate, and is also used to move on the upper surface of the machine base.

The transfer rotation mechanism can drive the frame of the loading and unloading jaws to rotate and move between the loading and unloading device and the fixing device, and can drive the frame of the loading and unloading jaws to approach and move away from the loading and unloading device. In this way, two processes of transporting the silicon rods to the fixture and transporting the cut square rods away from the fixture can be realized. The process of transferring the silicon rods to the fixture includes:

Turn the upper jaw assembly and the lower jaw assembly to the loading and unloading device, and approach the silicon rod vertically carried by the loading and unloading device, hold the silicon rod and lift the silicon rod;

Retract and rotate so that the silicon rod faces the fixture;

In a longitudinal fixing mechanism of a silicon rod, the silicon rod is put down and released and no longer clamped; the transfer of one silicon rod is completed.

The process of transferring the square bar formed by cutting away from the fixture, including:

Turn the upper jaw assembly and the lower jaw assembly to the ground square bar, hold the square bar formed by cutting and lift the square bar;

Approach the loading and unloading device, and turn to the square bar blanking component of the loading and unloading device, place the square bar on the square bar blanking component, and complete the transfer of a square bar, and then the square bar blanking component completes the blanking.

Specifically, as shown in FIG. 3A , the transfer rotation mechanism is mainly composed of a transfer motor, a transfer harmonic reducer and a rotary base 361 . The flexible wheel of the harmonic reducer is installed on the rotary seat 361 at the same time, and the steel wheel of the harmonic reducer is installed on the frame of the loading and unloading jaws, so that the transfer motor makes the frame of the loading and unloading jaws on the rotary seat by transferring the harmonic reducer. For stable rotating motion, because the transfer harmonic reducer can eliminate the backlash, the accuracy of the silicon rod transfer and feeding is greatly improved. At the same time, a rotary drag chain is installed on the rotary seat, which is used for the routing of rotary motion. The transfer harmonic reducer greatly improves the transfer accuracy of the silicon rod.

The structure of the loading and unloading device of the silicon rod cutting and grinding system

In implementation, as shown in Fig. 1A, Fig. 2A, Fig. 2B and Fig. 2C, the loading and unloading device 2 of the silicon rod cutting and grinding system includes a round rod feeding assembly, and the round rod feeding assembly includes:

L-shaped round bar feeding rack 211;

The loading and unloading device also includes:

The loading and unloading support frame 23, the round bar loading frame 211 and the loading and unloading support frame 23 are rotatably connected;

The feeding and turning drive device is respectively fixed with the bottom of the loading and unloading support frame and the outer bottom of the round bar feeding rack, and the feeding turning driving device is used to drive the round bar feeding frame from the round bar. The initial position of the material rack is turned 90 degrees;

The feeding processing unit is used to control the feeding and turning drive device to control the round bar feeding frame to accelerate the turning first, and when the round bar feeding frame is turned to reach a preset angle, lower the rotation of the round bar feeding frame. Flip speed until flip to 90 degrees.

Specifically, the value range of the preset angle is greater than or equal to 60 degrees and less than or equal to 85 degrees.

In the implementation, the feeding and turning drive device adopts the feeding turning cylinder 216;

The cylinder body of the feeding and turning cylinder 216 is fixed at the bottom of the loading and unloading support frame, and the upper end of the guide rod of the feeding turning cylinder 216 is fixed with the outer bottom of the round bar feeding rack 211 . The material turning cylinder 216 is used to drive the round bar feeding rack 211 to turn 90 degrees from the initial position of the round bar feeding rack;

The feeding processing unit is specifically used to reduce the elongation speed of the feeding turning cylinder 211 when the round bar feeding frame 211 is turned over to a preset angle, thereby reducing the turning speed of the round bar feeding frame 211 .

In implementation, as shown in Figure 2A and Figure 2B, the loading and unloading device further includes:

The deceleration proximity switch 217 is connected to the feeding processing unit, and is fixed to the position where the long arm of the round bar feeding rack is flipped to a preset angle;

The feeding processing unit is specifically configured to adjust the flow rate of the oil inlet of the feeding and turning cylinder to reduce the turning speed until the turning reaches 90 degrees after receiving the in-position signal of the deceleration proximity switch.

The cooperation of the deceleration proximity switch and the feeding processing unit, through a simple structure, realizes the reduction of the turning speed when the round bar feeding rack is turned close to 90 degrees, that is, when the silicon rod is turned close to 90 degrees, so that the silicon rod is turned to 90 degrees. When the speed is low, the impact on the silicon rod is small, which plays a role in protecting the silicon rod.

In implementation, as shown in FIG. 2A and FIG. 2B , the inner side of the short arm of the round bar feeding rack 211 is the length measurement reference plane 211-1;

The round bar feeding assembly also includes:

The round bar support mechanism 212 is fixed on the inner side of the long arm of the round bar feeding rack 211, and is used to support the horizontally placed circular silicon rod when the long arm of the round bar feeding rack 211 is placed horizontally;

The round bar clamping block 213 and the round bar clamping driving device are respectively fixed with the round bar supporting mechanism and the round bar clamping block; wherein, the round bar clamping block 213 is used for Driven by the round rod clamping driving device, push the round silicon rod located on the round rod supporting mechanism to hold against the length measurement reference surface 211-1 for clamping and fixing;

A clamping block displacement measuring device 215, which is fixed with the round bar feeding rack 211, is used to measure the displacement of the round bar clamping block 213;

The feeding processing unit is also used to obtain the length of the round silicon rod according to the distance between the initial position of the round rod clamping block and the length measurement reference plane and the displacement of the round rod clamping block. ; wherein, the initial position of the round bar clamping block is the position where the round bar clamping block is located when the round bar clamping driving device is extended to the maximum length.

When the round silicon rods need to be loaded, first, the L-shaped round rod feeding rack is placed with the long arm of the round rod feeding rack horizontally placed; then, the round silicon rods are placed horizontally On the round bar support mechanism, the material detection is carried out. The length of the silicon rod needs to be measured for the subsequent transportation and cutting of the silicon rod. The distance between the position of the length measurement reference plane and the initial position of the round bar clamping block is determined. In the case that the material is detected as material, the round rod clamping block is driven by the round rod clamping cylinder to move from the round rod clamping block to pushing the end face of one side of the silicon rod until it resists the datum surface of the length side beam. The clamping block displacement measuring device measures the displacement of the round rod clamping block, and then the round rod processing unit calculates the length of the round silicon rod.

Specifically, the presence of material is detected by a photoelectric switch used for detection of the presence of material in the loading and unloading device.

In implementation, the round bar clamping driving device adopts a round bar clamping cylinder 214, the cylinder body of the round bar clamping cylinder 214 is fixed with the round bar feeding rack 211, and the round bar clamping block 213 is fixed on the The round bar clamps the upper end of the guide rod of the cylinder 214;

Wherein, the round rod clamping block 213 is used to push the round silicon rod located on the round rod supporting mechanism to stand against the length measurement reference under the driving of the round rod clamping cylinder 214 The surface 211-1 is clamped and fixed; the initial position of the round bar clamping block is the position of the round bar clamping block when the guide rod of the round bar clamping cylinder is extended to the maximum length.

In implementation, the feeding processing unit is specifically used to obtain the length L of the circular silicon rod according to the following relational formula:

L=K-S;

Wherein, K is the distance from the initial position of the round bar clamping block to the length measurement reference plane, and S is the displacement of the round bar clamping block.

In this way, the length of the silicon rod can be obtained quickly and conveniently.

In implementation, the clamping block displacement measuring device is a tensile encoder.

As a clamping block displacement measurement device, the tensile encoder has a compact structure and is easy to install. In cooperation with the feeding processing unit, the length measurement of the circular silicon rod can be easily realized, and the measurement accuracy is also high.

Specifically, as shown in Figure 2A, the loading and unloading device further includes:

Two square bar blanking assemblies 22;

Among them, there are two round bar feeding components, and two round bar feeding components and two square bar feeding components are arranged in parallel.

The process of feeding round silicon rods is as follows:

①The long arm of the round bar feeding rack is placed horizontally on the upper and lower material support frame, and the silicon rod is fed onto the round bar support mechanism;

②The photoelectric switch fixed on the round bar feeding rack detects and sends out a material signal, then the round bar clamping cylinder is ventilated, and when the round bar clamping cylinder moves, the round bar clamping block is driven to rotate and pop out; then, the round bar clamping cylinder Continue to drive the round rod clamping block to move, and push the silicon rod from one end face of the silicon rod until the other end face of the silicon rod bears against the round rod clamping cylinder to clamp and fix.

③ The feeding and turning oil cylinder rotates around the axis by pushing the outer bottom of the round bar feeding frame. When it is turned to the position of the deceleration proximity switch, the deceleration proximity switch detects that it is in place, and the feeding processing unit is used to adjust the oil inlet flow of the feeding and turning cylinder. , so that the turning speed is reduced until the turning is 90° in place.

The blanking process of the square bar is as follows:

①The square bar blanking component is erected first, and the square bar formed by cutting is placed vertically on the square bar blanking component;

②The blanking and turning cylinder of the square bar blanking assembly is retracted and turned until it is horizontal.

The silicon rod cutting and grinding method of the silicon rod cutting and grinding system according to the embodiment of the present application includes the following steps:

Step S1: rotating the rotating platform, and rotating the first silicon rod to the first cutting device;

Step S2: the two cutting head mechanisms of the first cutting device move from top to bottom, and the first silicon rod is cut for the first time to form a first middle rod and two opposite side skins;

Step S3: remove the two side skins, and reset the two cutting head mechanisms of the first cutting device upward;

Step S4: continue to rotate the rotating platform, rotate the first intermediate rod to the second cutting device, and at the same time, rotate the second silicon rod to the first cutting device;

Step S5: The two cutting head mechanisms of the second cutting device move from top to bottom, and the first intermediate rod is cut a second time to form a first square rod and two opposite side skins; at the same time, the first cutting The two cutting head mechanisms of the device move from top to bottom to cut the second silicon rod for the first time;

Step S6: remove the edge skin, and reset the two cutting head mechanisms of the first cutting device and the two cutting head mechanisms of the second cutting device upwards.

In the silicon rod cutting and grinding method of the silicon rod cutting and grinding system of the embodiment of the present application, the first cutting device cuts the silicon rod for the first time to form a middle rod and two opposite side skins; The bar is cut a second time to form a square bar and two opposite side skins. While the second cutting device cuts the middle rod for the second time, the first cutting device cuts the silicon rod for the first time, so that the cutting efficiency is higher. Through the rotation of the rotating platform, the quick and convenient rotation of the silicon rod and the middle rod is realized. When the first cutting device and the second cutting device are cutting, they can both cut to form two side skins at one time, and the cutting efficiency is high.

In implementation, the silicon rod cutting and grinding method further includes:

Step S7: continue to rotate the rotating platform, and rotate the first square rod to the grinding device; at the same time, the second intermediate rod is rotated to the second cutting device, and the third silicon rod is rotated to the first cutting device;

Step S8: the grinding device grinds the first square bar to form the first square bar after grinding; at the same time, the two cutting head mechanisms of the second cutting device move from top to bottom, and perform the first step on the second intermediate bar. The second cutting is performed to form the second square rod and the two opposite side skins; at the same time, the two cutting head mechanisms of the first cutting device move from top to bottom, and the third silicon rod is cut for the first time to form the first cutting. Three middle rods and two opposite side skins;

Step S9: remove the edge skin; at the same time, the grinding device is reset, and the two cutting head mechanisms of the first cutting device and the two cutting head mechanisms of the second cutting device are reset upward.

In this way, the grinding device performs grinding, the second cutting device performs cutting, and the first cutting device performs cutting simultaneously, which greatly improves the efficiency of silicon rod cutting and grinding. The rotating platform realizes the position conversion of the silicon rod, the middle rod and the square rod among the first cutting device, the second cutting device and the grinding device.

In implementation, the silicon rod cutting and grinding method further includes:

Step S10: Continue to rotate the rotating platform, rotate the first square bar after grinding to the transfer device, and the transfer device transfers the first square bar after grinding to the loading and unloading device for unloading; at the same time, the second square bar is rotated to At the grinding device, the third-party rod is rotated to the second cutting device, and the other first silicon rod is rotated to the first cutting device.

After grinding, the first square rod is transported by the transfer device to the loading and unloading device, and the loading and unloading device carries out unloading, realizing the first silicon rod → the first intermediate rod → the first square rod → the first square rod after grinding. cutting and grinding process. That is, each silicon rod can be processed according to the process of silicon rod → middle rod → square rod → grinding rear rod.

In the implementation, the steps of removing the two side skins specifically include:

The edge skin clamping claws of the two edge skin clamping mechanisms of the cutting device move toward each other and enter between the two cutting machine head mechanisms of the cutting device through the through hole of the machine head to clamp the two edge skins and move opposite to each other. Exit between the two cutting machine head mechanisms of the cutting device through the head through hole, and place the edge skin into the edge skin collection assembly;

Wherein, the cutting device includes a first cutting device and a second cutting device.

The cutting device, because the wire saw mounting frame is provided with a through hole for the machine head, which cooperates with the edge skin clamping claws of the two edge skin clamping mechanisms of the cutting device, so that the wire saw does not need to be moved during the process of removing the edge skin. The installation frame saves time, improves the efficiency of removing the edge skin, and makes the process of removing the edge skin relatively simple, thereby making the edge skin removal efficiency higher.

Claims (17)

1. A silicon rod cutting and grinding system is characterized by comprising:

a machine base;

the rotary platform is rotatably arranged on the base;

the fixing device is fixed on the rotating platform and used for fixing the vertically placed silicon rod;

the first cutting device, the second cutting device and the grinding device sequentially surround the outer side of the rotating platform and are fixed on the machine base;

the rotating platform is used for rotating the silicon rods fixed by the fixing device to the first cutting device, the second cutting device and the grinding device in sequence for operation.

2. The silicon rod cutting and grinding system as set forth in claim 1, wherein the first cutting device and the grinding device are disposed oppositely;

the silicon rod cutting and grinding system further comprises a transfer device, and the transfer device is movably connected to one side, opposite to the second cutting device, of the machine base;

the fixing device comprises a fixing column and at least three silicon rod longitudinal fixing mechanisms, and the silicon rod longitudinal fixing mechanisms are arranged on the side face of the fixing column at intervals.

3. The silicon rod cutting and grinding system as set forth in claim 2, wherein the first cutting device and the second cutting device are cutting devices having the same structure; the cutting device includes:

the supporting frame is fixed on the base;

the two cutting machine head mechanisms are arranged on the front side of the supporting frame and can synchronously move up and down to cut the silicon rod and form two opposite side skins;

the two edge leather clamping mechanisms are respectively and fixedly arranged on two edges of the supporting frame;

the flaw-piece collecting assembly is fixedly arranged on the back side of the supporting frame;

the two flaw-piece clamping mechanisms are used for moving in opposite directions to enter two flaw-pieces and clamping the two flaw-pieces between the cutting machine head mechanisms, and moving in opposite directions to exit from two positions between the cutting machine head mechanisms, and the flaw-pieces are placed in the flaw-piece collecting assembly.

4. The silicon rod cutting and grinding system as set forth in claim 3, wherein the flaw-piece clamping mechanism comprises:

the clamping fixing seat is fixed on the side of the supporting frame;

the two ends of the first-stage arm are respectively hinged with the clamping fixing seat and one end of the second-stage arm;

the flaw-piece clamping claw is hinged to one side of the secondary arm, which is far away from the primary arm;

and the clamping control unit is used for controlling the rotation of the primary arm, the secondary arm and the flaw-piece clamping claw.

5. The silicon rod cutting and grinding system as set forth in claim 4, wherein the flaw-piece clamping jaw comprises:

a mounting plate for a side clamping jaw;

the bottom clamping jaw is fixed at the bottom end of the front side of the flaw-piece clamping jaw mounting plate and is used for bearing the lower end surface of the vertically arranged silicon rod;

and the top clamping jaw is connected to the upper end of the positive side of the side skin clamping jaw mounting plate in a sliding manner, and can move up and down.

6. The silicon rod cutting and grinding system as set forth in claim 5, wherein the cutter head mechanism comprises:

the scroll saw mounting frame is provided with a vertical machine head through hole;

the annular diamond wire is arranged on the positive side of the wire saw mounting frame, and the cutting section of the annular diamond wire is not interfered with the through hole of the machine head; the cutting section is a part of the annular diamond wire used for cutting the silicon rod in motion;

the two flaw-piece clamping claws are used for moving in opposite directions to clamp the flaw-piece between the cutting machine head mechanisms through entering the two machine head through holes, and move in opposite directions to exit from the two machine head through holes between the cutting machine head mechanisms.

7. The silicon rod cutting and grinding system as claimed in any one of claims 2 to 6, wherein the silicon rod longitudinal fixing mechanism comprises:

the chuck frame vertical motion guide rail is fixed on the side surface of the fixed column;

the chuck frame is in sliding connection with the chuck frame vertical movement guide rail;

an upper floating head installed at the clip frame; the clamping head frame can move up and down along the guide rail in the vertical direction of the clamping head frame so as to drive the upper floating head to press the upper end surface of the silicon rod which is vertically placed and the upper end surface of the square rod which leaves the ground square rod;

the supporting device comprises a chuck frame, a flaw-piece supporting frame and a supporting frame, wherein the chuck frame is connected with the chuck frame and can extend downwards and reset upwards, the flaw-piece supporting frame is used for extending downwards and supporting the outer peripheral surface of the silicon rod, and the flaw-piece supporting frame is also used for resetting upwards to leave the outer peripheral surface of the silicon rod.

8. The silicon rod cutting and grinding system of claim 7, wherein the kerb support comprises:

the mounting piece of the edge supporting bracket is fixed with the chuck frame;

the flaw-piece handrail is fixed on one side, far away from the upper floating head, of the handrail fixing part and extends downwards;

and the edge supporting leather driving device is respectively connected with the edge supporting leather bracket mounting part and the supporting rod fixing part and is used for driving the supporting rod fixing part and the edge supporting leather supporting rod to extend downwards and reset upwards.

9. The silicon rod cutting grinding system as set forth in claim 8, wherein the silicon rod longitudinal fixing mechanism further comprises:

a silicon rod support mounting base fixed on the rotary platform;

and the lower floating head is used for supporting the lower end surface of the vertical silicon rod and is arranged above the silicon rod supporting and mounting seat.

10. The silicon rod cutting grinding system as set forth in claim 9, wherein the silicon rod longitudinal fixing mechanism further comprises an edge skin support assembly, the edge skin support assembly comprising:

the driving device for supporting the flaw-piece is fixed on the silicon rod supporting and installing seat and is arranged at intervals with the lower floating head;

the flaw-piece supporting head is used for supporting the position of a flaw-piece formed after the lower end surface of the silicon rod is cut, and the flaw-piece supporting head is fixed at the top end of the driving device for supporting the flaw-piece; the driving device for supporting the flaw-piece is used for locking when the silicon rod is cut into the square rod and the flaw-piece so that the flaw-piece supporting head keeps the height and supports the flaw-piece.

11. The silicon rod cutting and grinding system as set forth in any one of claims 2 to 6, wherein the transfer device comprises:

a loading and unloading clamping jaw frame;

the upper clamping jaw assembly and the lower clamping jaw assembly are arranged on the same side of the upper and lower clamping jaw frames at an interval in parallel;

the upper clamping jaw transferring and driving device is respectively fixed with the lower clamping jaw assembly and the upper clamping jaw assembly and drives the upper clamping jaw assembly to move up and down relative to the lower clamping jaw assembly;

lower clamping jaw transports drive arrangement, respectively with go up unloading clamping jaw frame with lower clamping jaw subassembly is fixed and drives lower clamping jaw subassembly, last clamping jaw subassembly with go up clamping jaw transports drive arrangement and moves from top to bottom in step.

12. The silicon rod cutting grinding system as set forth in claim 11, wherein the upper jaw transfer drive device comprises:

the cylinder body of the transfer gas-liquid cylinder is fixed at the bottom of the feeding and discharging clamping jaw frame, and the upper end of a guide rod of the transfer gas-liquid cylinder is fixed with the lower clamping jaw assembly;

the gas-liquid converter is connected with the transfer gas-liquid cylinder; the gas entering the gas-liquid converter extrudes hydraulic oil into the transfer gas-liquid cylinder to drive a guide rod of the transfer gas-liquid cylinder to jack the lower clamping jaw assembly;

the lower clamping jaw transferring driving device comprises a transferring air cylinder, a cylinder body of the transferring air cylinder is fixed with the lower clamping jaw assembly, and the upper end of a guide rod of the transferring air cylinder is fixed with the upper clamping jaw assembly; wherein, the air supply gets into the gas of transporting the cylinder drives the guide bar of transporting the cylinder will go up clamping jaw subassembly jack-up.

13. The silicon rod cutting and grinding system as set forth in claim 1, wherein the grinding device comprises:

the grinding support frame is fixed on the machine base;

the composite grinding body for coarse grinding and fine grinding of the square rod is installed on the front side of the grinding support frame, and the composite grinding body can move from top to bottom to grind the vertically placed square rod.

14. The silicon rod slicing and grinding method of the silicon rod slicing and grinding system as set forth in any one of claims 1 to 13, comprising the steps of:

rotating the rotating platform to rotate the first silicon rod to the first cutting device;

the two cutting machine head mechanisms of the first cutting device move from top to bottom to cut the first silicon rod for the first time to form a first middle rod and two back-to-back edge skins;

taking the two hems away, and upwards resetting the two cutting machine head mechanisms of the first cutting device;

continuing to rotate the rotating platform, rotating the first intermediate rod to the second cutting device, and simultaneously rotating the second silicon rod to the first cutting device;

the two cutting machine head mechanisms of the second cutting device move from top to bottom to cut the first middle rod for the second time to form a first square rod and two opposite side skins; simultaneously, the two cutting machine head mechanisms of the first cutting device move from top to bottom to cut the second silicon rod for the first time;

take the flaw-piece away, two cutting machine head mechanisms of the first cutting device and two cutting machine head mechanisms of the second cutting device reset upwards.

15. The silicon rod cutting and grinding method as set forth in claim 14, further comprising:

continuing to rotate the rotating platform, and rotating the first square rod to the grinding device; simultaneously, the second intermediate rod rotates to the second cutting device, and the third silicon rod rotates to the first cutting device;

grinding the first square rod by using a grinding device to form a ground first square rod; simultaneously, two cutting machine head mechanisms of the second cutting device move from top to bottom to perform second cutting on the second middle rod to form a second square rod and two opposite side skins; simultaneously, the two cutting machine head mechanisms of the first cutting device move from top to bottom to cut the third silicon rod for the first time to form a third middle rod and two opposite side skins;

taking the flaw-piece away; meanwhile, the grinding device resets, and the two cutting machine head mechanisms of the first cutting device and the two cutting machine head mechanisms of the second cutting device reset upwards.

16. The silicon rod cutting and grinding method as set forth in claim 15, further comprising:

continuing to rotate the rotating platform, rotating the ground first square rod to a transfer device, and transferring the ground first square rod to a feeding and discharging device by the transfer device for discharging; simultaneously, the second square rod is rotated to the grinding device, the third square rod is rotated to the second cutting device, and the other first silicon rod is rotated to the first cutting device.

17. The silicon rod cutting and grinding method as set forth in claim 16, wherein the step of removing the two rims comprises:

the flaw-piece clamping claws of the two flaw-piece clamping mechanisms of the cutting device move oppositely to enter the space between the two cutting machine head mechanisms of the cutting device through the machine head through holes to clamp the two flaw-pieces, and move oppositely to exit the space between the two cutting machine head mechanisms of the cutting device through the machine head through holes, and the flaw-pieces are placed in a flaw-piece collecting assembly;

wherein the cutting device comprises a first cutting device and a second cutting device.

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