Wire wheel replacing device of multi-wire cutting machine

Abstract

The utility model discloses a multi-wire cutting machine wire wheel replacing device which comprises a horizontally-arranged supporting arm and a lifting driving mechanism capable of driving the supporting arm to ascend and descend in a reciprocating mode in the vertical direction, and a lifting tray capable of bearing a wire wheel is arranged on the supporting arm in a linkage mode. According to the wire wheel replacing device of the multi-wire cutting machine, collision between the wire wheel replacing device and related parts of the multi-wire cutting machine in the action process can be effectively avoided, the wire wheel replacing operation efficiency is higher, and the labor intensity of related workers is correspondingly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-wire cutting machine component replacement and maintenance supporting equipment, in particular to a multi-wire cutting machine wire wheel replacement device. Background Art

[0002] Multi-wire cutting is a new cutting method that uses high-speed reciprocating motion of metal wire to carry abrasives into the semiconductor processing area for grinding. It can simultaneously cut hard and brittle materials such as semiconductors into hundreds to thousands of thin slices, or cut cylindrical silicon blocks into square silicon blocks, or cut polycrystalline silicon ingots into square silicon blocks.

[0003] Correspondingly, silicon carbide substrates are the main production materials in the semiconductor field. Silicon carbide substrate multi-wire cutting technology is currently the most advanced silicon carbide substrate processing technology in the world. It is different from traditional cutting methods such as saw blades and grinding wheels, and is also different from the more expensive laser cutting and inner circle cutting.

[0004] Specifically, the principle of multi-wire cutting technology for silicon carbide substrates is to use a high-speed steel wire to drive the cutting blade material attached to the steel wire to rub and cut the silicon carbide rod, thereby achieving the cutting effect. During the entire multi-wire cutting process, the steel wire is guided by more than a dozen wire pulleys to form a wire mesh on the main wire roller, and the workpiece to be processed is driven by the lowering of the workbench to achieve the feeding of the workpiece. For current conventional production operations in the industry, this type of multi-wire cutting technology for silicon carbide substrates has many advantages such as high efficiency, high production capacity, and high precision. It is currently the most widely used silicon carbide substrate cutting technology in the semiconductor-related field.

[0005] Accordingly, existing multi-wire cutting technology usually relies on a multi-wire cutting machine to achieve the corresponding multi-wire cutting operation. After the multi-wire cutting machine has been running for a period of time, the wire reel that matches the cutting wire will need to be replaced due to wear or other work consumption issues. In this regard, the more common operation method in the industry is to use a hoisting operation, that is, the new wire reel that needs to be replaced is moved to the target workstation using equipment such as a tooling vehicle, and then the new wire reel is hoisted to the work location where the wire reel needs to be replaced, so that the wire reel can be replaced in time, ensuring the smooth operation of the multi-wire cutting machine and the quality of the related products after multi-wire cutting.

[0006] However, although the above-mentioned existing wire wheel replacement operation method can meet the basic operation needs at this stage, in its actual operation, the movement and lifting operations of the wire wheel are usually completed by a work vehicle. The lifting action mechanism of the work vehicle is very likely to have rigid contact and collision with the wire wheel swing mechanism of the multi-wire cutting machine during the operation, thereby causing the wire wheel swing mechanism to have slight deviation or even structural damage, thereby causing the wire wheel swing mechanism to fail to work normally or the stability of the wire wheel operation process to decrease, resulting in the corresponding silicon carbide substrate multi-wire cutting operation accuracy and operation efficiency to decrease, and even leading to an increase in the defective rate of the cutting product, which not only causes material waste, but also has many adverse effects on the equipment operation and maintenance of the multi-wire cutting machine.

[0007] In addition, since the existing lifting operation method can easily cause the moving mechanism of the tooling vehicle to collide with the moving mechanism such as the wire wheel swing mechanism of the multi-wire cutting machine, in order to avoid collision, it is necessary to frequently adjust the moving position of the components and calibrate the moving path accordingly during the lifting operation. This adjustment and calibration process is completed by the staff, which seriously increases the labor intensity of the staff. The frequent adjustment and calibration operations also seriously restrict the efficiency of the corresponding wire wheel lifting and replacement operations.

[0008] In view of this, how to optimize the wire wheel replacement operation mode of the multi-wire cutting machine, avoid collision between the wire wheel replacement device and related components of the multi-wire cutting machine during operation, make the wire wheel replacement operation more efficient, and reduce the labor intensity of related personnel accordingly is an important technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0009] The purpose of the utility model is to provide a wire reel replacement device for a multi-wire cutting machine, which can effectively avoid collision with relevant components of the multi-wire cutting machine during the operation of the wire reel replacement device, and make the wire reel replacement operation more efficient, and reduce the labor intensity of relevant staff accordingly.

[0010] In order to solve the above technical problems, the utility model provides a multi-wire cutting machine wire wheel replacement device, including a horizontally arranged support arm and a lifting drive mechanism that can drive the support arm to lift and reciprocate in the vertical direction, and a lifting tray that can carry the wire wheel is linked to the support arm.

[0011] Preferably, the top of the lifting tray has a positioning bracket for the wire wheel to be installed in position.

[0012] Preferably, a safety strap cooperating with the wire pulley is also provided on the top of the lifting pallet, the assembly end of the safety strap is connected to the top surface of the lifting pallet, and the free end of the safety strap is detachably connected to the top surface of the pallet, the assembly end and the free end of the safety strap are respectively located on both sides of the positioning bracket, and the safety strap is spanned above the positioning bracket to form a space between the safety strap and the positioning bracket that can accommodate the wire pulley.

[0013] Preferably, a tape box with a tape cavity inside is provided on the top surface of the lifting tray, a tape shaft is provided in the tape cavity so as to be rotatable around a fixed axis, the assembly end of the safety strap is linked to the tape shaft, and a tape opening is provided on the tape box for the free end of the safety strap to pass through.

[0014] Preferably, a locking tongue is provided at the free end of the safety strap, and a lock buckle adapted for assembly and disassembly with the locking tongue is provided on the top surface of the lifting tray.

[0015] Preferably, the support arm is provided with a hook capable of suspending the reel.

[0016] Preferably, the lifting tray is located at the front end portion of the support arm, and the hook is protrudingly provided on the front or side outer wall of the lifting tray.

[0017] Preferably, a movable tool vehicle is further included, and the support arm and the lifting drive mechanism are both linked and arranged on the tool vehicle.

[0018] Preferably, a flange is provided at the rear end of the support arm, and the support arm is linked to the lifting drive mechanism via a screw that passes through the flange and is threadedly fastened to the action part of the lifting drive mechanism.

[0019] Preferably, a reinforcing rib is provided between the side wall of the rear end portion of the support arm and the flange.

[0020] Compared with the above background technology, the multi-wire cutting machine reel replacement device provided by the present invention has the following steps: after the old reel that needs to be replaced on the multi-wire cutting machine is removed, the new reel that needs to be replaced is aligned and installed on the lifting tray, and then the lifting drive mechanism is used to drive the support arm to lift moderately in the vertical direction, so as to drive the lifting tray and the reel to be replaced on the lifting tray to be lifted synchronously until the lifting tray reaches the reel assembly position on the multi-wire cutting machine where the reel replacement operation needs to be performed. After that, the new reel to be replaced can be assembled from the lifting tray to the corresponding reel assembly position on the multi-wire cutting machine. The assembly process can be manually operated by the staff, or it can be completed by the lifting drive mechanism driving the support arm and the lifting tray to lift and feed synchronously. After the new reel is assembled on the multi-wire cutting machine and reliably installed, the lifting drive mechanism drives the support arm to move downward moderately to the initial position, thereby driving the lifting tray to move downward and reset synchronously, so that the new reel to be replaced can be more conveniently arranged on the lifting tray when the reel replacement operation is performed. The multi-wire cutting machine reel replacement device uses a lifting drive mechanism to drive a support arm in conjunction with a lifting tray to lift the new reel to be replaced to the target workstation, effectively avoiding the damage to the multi-wire cutting machine components caused by structural interference or collision between the reel replacement mechanism and the main structure of the multi-wire cutting machine during the existing multi-wire cutting machine reel replacement process of using a hoisting operation to deliver the new reel to be replaced to the target workstation, thereby ensuring the movement accuracy and operation stability of the multi-wire cutting machine action mechanism and functional components, and thus ensuring the molding quality and yield rate of the corresponding silicon carbide substrate cutting products. In addition, the entire action process of using the above-mentioned lifting tray to lift the new reel to be replaced to the replacement target workstation is smooth and controllable, and there is no need to frequently adjust the position and calibrate the path of the action mechanism carrying the new reel as in the existing technology using hoisting operations, thereby greatly reducing the labor intensity of relevant personnel and improving the efficiency of the reel replacement operation of the multi-wire cutting machine.

[0021] In another preferred embodiment of the present invention, the top of the lifting tray has a positioning bracket for the wire wheel to be aligned and installed. The new wire wheel that needs to be replaced is aligned and installed in the positioning bracket, so that the inner wall of the positioning bracket and the outer wall of the wire wheel can be appropriately abutted and clamped to achieve reliable positioning of the wire wheel, thereby ensuring the structural stability of the wire wheel when it is lifted and moved synchronously with the lifting tray, and preventing the new wire wheel that needs to be replaced from being misplaced or falling off from the lifting tray during the lifting and lowering movement of the lifting tray along with the support arm, so as to avoid structural damage to the wire wheel due to falling during the lifting and transportation process, thereby further optimizing the safety and reliability of the wire wheel replacement operation, avoiding material waste, and improving the efficiency of wire wheel transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is an axonometric view of the assembly structure of the support arm and the lifting tray of the wire reel replacement device for a multi-wire saw provided by a specific embodiment of the utility model;

[0024] Figure 2 for Figure 1 Front view of

[0025] Figure 3 for Figure 1 A top view of

[0026] Figure 4 for Figure 1 side view.

[0027] in:

[0028] 11-support arm; 111-reinforcement rib;

[0029] 12-lifting tray; 121-positioning bracket; 122-axis slot; 123-end slot;

[0030] 13-safety strap; 131-tape box; 132-tape opening; 133-lock tongue; 134-lock buckle;

[0031] 14-hook;

[0032] 15-Flange. DETAILED DESCRIPTION

[0033] The core of the utility model is to provide a wire reel replacement device for a multi-wire cutting machine, which can effectively avoid collision with relevant components of the multi-wire cutting machine during the operation of the wire reel replacement device, and make the wire reel replacement operation more efficient, and reduce the labor intensity of relevant staff accordingly.

[0034] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0035] It should be noted that, in this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0036] In addition, in the present invention, unless otherwise clearly stipulated and limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0037] In addition, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0038] Please refer to Figures 1 to 4 .

[0039] In a specific embodiment, the multi-wire cutting machine wire wheel replacement device provided by the utility model includes a horizontally arranged support arm 11 and a lifting drive mechanism that can drive the support arm 11 to lift and reciprocate in the vertical direction. A lifting tray 12 that can carry the wire wheel is linked to the support arm 11.

[0040] During the specific operation process, after removing the old wire reel that needs to be replaced on the multi-wire cutting machine, the new wire reel that needs to be replaced is installed on the lifting tray 12, and then the lifting drive mechanism is used to drive the support arm 11 to lift moderately in the vertical direction to drive the lifting tray 12 and the wire reel to be replaced on the lifting tray 12 to be lifted synchronously until the lifting tray 12 reaches the wire reel assembly position on the multi-wire cutting machine where the wire reel replacement operation needs to be performed.

[0041] Afterwards, the new spool to be replaced can be assembled from the lifting tray 12 to the corresponding spool assembly position on the multi-wire cutting machine. The assembly process can be manually operated by a staff member, or it can be completed by the lifting drive mechanism driving the support arm 11 and the lifting tray 12 to lift and feed synchronously. After the new spool is assembled on the multi-wire cutting machine and securely installed, the lifting drive mechanism drives the support arm 11 to move down appropriately to the initial position, thereby driving the lifting tray 12 to move down and reset synchronously, so that the new spool to be replaced can be more conveniently arranged on the lifting tray 12 during the lowering spool replacement operation.

[0042] The multi-wire saw reel replacement device uses a lifting drive mechanism to drive the support arm 11 and cooperate with the lifting tray 12 to lift the new reel to be replaced to the target workstation, effectively avoiding the damage of the multi-wire saw components due to structural interference or collision between the reel replacement mechanism and the main structure of the multi-wire saw during the existing multi-wire saw reel replacement process. It ensures the motion accuracy and operation stability of the multi-wire saw action mechanism and functional components, and thus ensures the molding quality and yield rate of the corresponding silicon carbide substrate cutting products.

[0043] In addition, the entire process of using the above-mentioned lifting pallet 12 to lift the new wire wheel to be replaced to the target replacement station is smooth and controllable, and there is no need to frequently adjust the position and calibrate the path of the action mechanism carrying the new wire wheel as in the prior art using lifting operations. This greatly reduces the labor intensity of relevant personnel and enables the efficiency of the wire wheel replacement operation of the multi-wire cutting machine to be correspondingly improved.

[0044] Specifically, the top of the lifting tray 12 is provided with a positioning bracket 121 for the wire wheel to be aligned and installed. The new wire wheel that needs to be replaced is aligned and installed in the positioning bracket 121, so that the wire wheel can be reliably limited by the appropriate abutment and clamping between the inner wall of the positioning bracket 121 and the outer wall of the wire wheel, so as to ensure the structural stability of the wire wheel when it is lifted and moved synchronously with the lifting tray 12, and avoid the new wire wheel that needs to be replaced from being misplaced or falling off from the lifting tray 12 during the lifting and lowering action of the lifting tray 12 along with the support arm 11, so as to avoid structural damage caused by the wire wheel falling during the lifting and transportation process, thereby further optimizing the safety and reliability of the wire wheel replacement operation, avoiding material waste, and improving the efficiency of wire wheel transportation.

[0045] Generally, the positioning bracket 121 is a three-section structure, in which the middle section is an axial groove 122 extending in the horizontal direction, which is used to align with the middle rotating shaft section of the spool, and can provide reliable structural support and stable limitation for the rotating shaft section in the middle of the spool; an end groove 123 is respectively provided at both axial ends of the axial groove 122, which is used to align with the wide diameter section at the end of the spool, and can provide reliable structural support and stable limitation for the wide diameter section at both ends of the spool.

[0046] Correspondingly, the inner walls of the shaft groove 122 and the inner walls of the end groove 123 are both curved surfaces, circumferentially matching the outer walls of the middle shaft section and the outer walls of the wide diameter section of the spool, ensuring the stability of the support structure and avoiding local stress concentration. In addition, the radius corresponding to the inner wall of the shaft groove 122 is smaller than the radius corresponding to the inner wall of the end groove 123, thereby matching the structural feature that the outer diameter of the middle shaft section of the spool is smaller than the outer diameter of its wide diameter section at the end. This further optimizes the structural matching degree between the positioning bracket 121 and the spool, and improves the stability of the spool during the lifting and moving process of the lifting tray 12.

[0047] It is not difficult to understand that in specific applications, on the basis of the reliable support of the middle rotating shaft section and the end wide diameter section of the wire wheel by the above-mentioned shaft groove 122 and each end groove 123 respectively, the axial end face formed by the variable diameter matching structure of the shaft groove 122 and the end groove 123 can be reliably abutted against the inner side wall of the wide diameter section of the sprocket, thereby forming a reliable axial limit for the cable located in the positioning bracket 121, thereby further optimizing the lifting and transportation stability of the wire wheel by the lifting tray 12, and can correspondingly improve the conveying operation accuracy of the wire wheel.

[0048] More specifically, a safety strap 13 cooperating with the wire pulley is also provided on the top of the lifting pallet 12. The assembly end of the safety strap 13 is connected to the top surface of the lifting pallet 12, and the free end of the safety strap 13 is detachably connected to the top surface of the pallet. The assembly end and the free end of the safety strap 13 are respectively located on both sides of the positioning bracket 121. The safety strap 13 is arranged across the positioning bracket 121 to form a space between the safety strap 13 and the positioning bracket 121 that can accommodate the wire pulley.

[0049] After the wire wheel is installed in the corresponding positioning bracket 121, the safety strap 13 can be extended to the positioning bracket 121 through the top of the wire wheel, so that the safety strap 13 can reliably press and limit the top outer wall of the cable. Therefore, by utilizing the coordinated cooperation between the safety strap 13 and the positioning bracket 121, the new wire wheel that needs to be replaced can be reliably fixed in the accommodating space between the safety strap 13 and the positioning bracket 121, thereby further preventing the wire wheel from loosening or falling from the lifting tray 12, thereby ensuring the safety and stability of the lifting and transportation of the wire wheel.

[0050] On this basis, a tape box 131 with a tape cavity inside is provided on the top surface of the lifting tray 12, and a tape shaft is provided in the tape cavity so as to be rotatable around a fixed axis. The assembly end of the safety strap 13 is linked to the tape shaft, and a tape opening 132 is provided on the tape box 131 for the free end of the safety strap 13 to pass through. When there is no need to implement matching limiting on the wire wheel, the safety strap 13 can be wound on the winding shaft and stored in the winding box 131; when it is necessary to implement auxiliary limiting on the wire wheel placed in the positioning bracket 121, the free end of the safety strap 13 can be pulled out from the winding mouth 132 to drive the safety strap 13 to be gradually pulled out of the winding box 131 and stretched. During this period, the winding shaft rotates in the positive fixed axis until the free end of the safety strap 13 reaches the other side of the positioning bracket 121 and is reliably connected to the lifting tray 12; after the limiting operation of the cable is completed, the free end of the safety strap 13 is removed from the lifting tray 12, and the reverse fixed axis rotation of the winding shaft is used to drive the safety strap 13 to be gradually wound on the winding shaft and stored in the winding box 131, so as to prevent the safety strap 13 from winding or other structural interference with the main structural parts such as the positioning bracket 121 and the support arm 11, thereby ensuring the operational safety and convenience of the wire wheel changing device of the multi-wire cutting machine.

[0051] Generally, the tape reel can be driven by a motor to achieve fixed-axis rotation, or a torsion spring can be selected as the rotation reset mechanism of the tape reel, depending on the actual working conditions. That is, when the safety strap 13 is drawn out of the tape reel box 131 and stretched, the elastic force of the torsion spring is overcome to drive the tape reel to rotate in the forward direction. When the safety strap 13 is finished and needs to be retracted, the staff releases the drag on the free end of the safety strap 13, and the tape reel rotates in the reverse direction under the elastic reset force of the torsion spring, driving the safety strap 13 to be rewound around the tape reel, thus completing the rewinding of the safety strap 13. Of course, the specific operation mode of the tape reel and its supporting drive mechanism or reset mechanism are not limited to those described above. In principle, any method that can meet the actual application requirements of the multi-wire cutting machine line replacement device can be used.

[0052] Furthermore, a locking tongue 133 is provided at the free end of the safety strap 13, and a lock buckle 134 is provided on the top surface of the lifting tray 12, adapted for assembly and disassembly with the locking tongue 133. This alignment and adaptation structure of the lock buckle 134 and the locking tongue 133 is simple and easy to assemble and disassemble, and the aligned connection structure is relatively safe and reliable, which can fully meet the requirements of assembly and disassembly of the free end of the safety strap 13 and structural fixation, and is also adapted to the operation requirements of retracting and unreeling the safety strap 13.

[0053] In fact, the assembly and disassembly connection between the free end of the safety strap 13 and the lifting tray 12 can also be achieved by means of cooperating mechanisms such as a lock hole and a lock pin. In short, any method can be used as long as it can meet the actual assembly and application requirements of the multi-wire cutting machine wire wheel replacement device.

[0054] On the other hand, the support arm 11 is provided with a hook 14 capable of suspending the reel. In actual applications, when it is not possible to lift and transfer the new reel to be replaced under certain working conditions, the hook 14 can be used in conjunction with a sling and other mechanisms in conjunction with the lifting drive mechanism to drive the support arm 11 to achieve a synchronous lifting action, and the new reel to be replaced can be suspended to the corresponding work station to achieve the corresponding reel replacement and installation operations. As a result, the multi-wire cutting machine reel replacement device is able to have two reel transportation methods: lifting and suspending transportation, thereby greatly optimizing the working condition adaptability of the multi-wire cutting machine reel replacement device and making its actual operation more flexible and efficient.

[0055] Generally, the lifting tray 12 is located at the front end of the support arm 11, and the hook 14 is protrudingly provided on the front or side outer wall of the lifting tray 12. This effectively prevents the hook 14 from causing structural interference with the lifting tray 12, the support arm 11 and other components. Furthermore, when a sling and a reel are suspended from the hook 14, a safe distance can be maintained between the sling and the reel and the support arm 11 and other moving components, thereby preventing the reel from colliding with the other moving components. This not only ensures the operational safety and working stability of the reel replacement device for the multi-wire saw, but also further prevents the reel from structural damage during transportation.

[0056] The multi-wire saw reel replacement device also includes a mobile tooling vehicle, on which the support arm 11 and the lifting drive mechanism are linked. The tooling vehicle can quickly move the support arm 11 and the lift tray 12 thereon to the vicinity of the multi-wire saw where the reel replacement operation is to be performed, thereby further improving the efficiency of the corresponding reel replacement operation. In actual applications, engineering vehicles such as forklifts can also be used as specific application types of tooling vehicles to meet the needs of reel replacement operations under different working conditions.

[0057] Furthermore, a flange 15 is provided at the rear end of support arm 11. Support arm 11 is linked to the lift drive mechanism via screws that penetrate flange 15 and are threadedly fastened to the actuator of the lift drive mechanism. Flange 15 effectively ensures the assembly strength between support arm 11 and the lift drive mechanism, optimizing the corresponding linkage adaptation, and ensuring smoother and more stable reciprocating movement of support arm 11 along with the lift drive mechanism.

[0058] Generally, the lifting drive mechanism can be a screw mechanism, a rack and pinion structure, a worm gear mechanism, or other mechanism capable of achieving a wide range of reciprocating lifting and lowering. Workers can flexibly select and adjust the mechanism based on specific working conditions and actual assembly conditions. In principle, any mechanism that can meet the practical application requirements of the multi-wire saw reel replacement device can be used.

[0059] In addition, a reinforcing rib 111 is provided between the side wall of the rear end of the support arm 11 and the flange 15. The reinforcing rib 111 can significantly improve the structural strength of the connection between the support arm 11 and the flange 15, optimize the deflection resistance of the support arm 11, and further improve the load-bearing capacity of the support arm 11, thereby meeting the support and lifting and conveying requirements of wire pulleys of different specifications.

[0060] In summary, the multi-wire cutting machine reel replacement device provided in the present invention, during its operation and use, after the old reel that needs to be replaced on the multi-wire cutting machine is removed, the new reel that needs to be replaced is aligned and installed on the lifting tray, and then the lifting drive mechanism is used to drive the support arm to lift moderately in the vertical direction, so as to drive the lifting tray and the reel to be replaced on the lifting tray to be lifted synchronously, until the lifting tray reaches the reel assembly position on the multi-wire cutting machine where the reel replacement operation needs to be performed, and then the new reel to be replaced can be assembled from the lifting tray to the corresponding reel assembly position on the multi-wire cutting machine. The assembly process can be manually operated by the staff, or it can be completed by the lifting drive mechanism driving the support arm and the lifting tray to lift and feed synchronously. After the new reel is assembled on the multi-wire cutting machine and reliably installed, the lifting drive mechanism drives the support arm to move moderately downward to the initial position, thereby driving the lifting tray to move downward and reset synchronously, so that when the reel replacement operation is performed, the new reel to be replaced can be more conveniently arranged on the lifting tray. The multi-wire cutting machine reel replacement device uses a lifting drive mechanism to drive a support arm in conjunction with a lifting tray to lift the new reel to be replaced to the target workstation, effectively avoiding the damage to the multi-wire cutting machine components caused by structural interference or collision between the reel replacement mechanism and the main structure of the multi-wire cutting machine during the existing multi-wire cutting machine reel replacement process of using a hoisting operation to deliver the new reel to be replaced to the target workstation, thereby ensuring the movement accuracy and operation stability of the multi-wire cutting machine action mechanism and functional components, and thus ensuring the molding quality and yield rate of the corresponding silicon carbide substrate cutting products. In addition, the entire action process of using the above-mentioned lifting tray to lift the new reel to be replaced to the replacement target workstation is smooth and controllable, and there is no need to frequently adjust the position and calibrate the path of the action mechanism carrying the new reel as in the existing technology using hoisting operations, thereby greatly reducing the labor intensity of relevant personnel and improving the efficiency of the reel replacement operation of the multi-wire cutting machine.

[0061] The above is a detailed introduction to the multi-wire saw reel replacement device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A multi-wire saw wheel replacement device, characterized in that: It comprises a horizontally arranged support arm and a lifting drive mechanism capable of driving the support arm to lift and lower back and forth in a vertical direction; a lifting tray capable of carrying a wire wheel is linked to the support arm.

2. The multi-wire saw wheel replacement device according to claim 1, characterized in that: The top of the lifting tray is provided with a positioning bracket for the wire wheel to be aligned and installed.

3. The multi-wire saw wheel replacement device according to claim 2, characterized in that: The top of the lifting pallet is also provided with a safety strap that cooperates with the wire pulley. The assembly end of the safety strap is connected to the top surface of the lifting pallet, and the free end of the safety strap is detachably connected to the top surface of the pallet. The assembly end and the free end of the safety strap are respectively located on both sides of the positioning bracket, and the safety strap is spanned above the positioning bracket to form a space between the safety strap and the positioning bracket that can accommodate the wire pulley.

4. The multi-wire saw wheel replacement device according to claim 3, characterized in that: A tape box with a tape cavity inside is provided on the top surface of the lifting tray, a tape shaft is provided in the tape cavity so as to be rotatable around a fixed axis, the assembly end of the safety strap is linked to the tape shaft, and a tape opening is provided on the tape box for the free end of the safety strap to pass through.

5. The multi-wire saw wheel replacement device according to claim 3, characterized in that: The free end of the safety strap is provided with a locking tongue, and the top surface of the lifting tray is provided with a lock buckle adapted for assembly and disassembly with the locking tongue.

6. The multi-wire saw wheel replacement device according to claim 1, wherein: The support arm is provided with a hook capable of suspending the wire wheel.

7. The multi-wire saw wheel replacement device according to claim 6, characterized in that: The lifting tray is located at the front end portion of the support arm, and the hook is protrudingly arranged on the front or side outer wall of the lifting tray.

8. The wire wheel replacement device for a multi-wire saw according to claim 1, wherein: It also includes a movable tooling vehicle, on which the support arm and the lifting drive mechanism are both linked and arranged.

9. The multi-wire saw wheel replacement device according to claim 8, characterized in that: A flange is provided at the rear end of the support arm, and the support arm is linked to the lifting drive mechanism through a screw that penetrates the flange and is threadedly fastened to the action part of the lifting drive mechanism.

10. The wire wheel replacement device for a multi-wire saw according to claim 9, wherein: A reinforcing rib is provided between the side wall of the rear end portion of the support arm and the flange.

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