A cutting thread detection device

Abstract

The application relates to a cutting line detection device, which comprises a bearing frame, one end of the upper side of the bearing frame is provided with a servo cylinder one, the movable end of the servo cylinder one is provided with a pull rod, the other end of the bearing frame is rotationally connected with a control arm, the control arm is provided with a linkage shaft, and the linkage shaft is fixedly connected with an assembling frame through the bearing frame. Through the use of postures 1 and 2, the cutting lines in different situations can be detected, the detection wheel is extruded by the cutting line, the swing lever extrudes the elastic sheet through the linkage shaft and the extrusion arm, the elastic sheet transmits the elastic force to the pressure sensor, the tension of the cutting line is comprehensively judged through the data detected by the two pressure sensors, the misreporting or inaccurate detection is avoided, and if the detection data suddenly decreases to zero, the line breaking accident may occur.

Description

Technical Field

[0001] This invention belongs to the field of wire breakage detection devices, specifically a wire cutting detection device. Background Technology

[0002] Silicon wafer cutting is a critical process in photovoltaic module manufacturing. During the cutting process, wire breakage (cutting wire breakage) can easily occur due to factors such as wear of the cutting steel wire, improper cutting parameter settings, or the characteristics of the silicon wafer material.

[0003] A broken wire can cause cutting to be interrupted, affecting production efficiency and potentially damaging silicon wafers, thus reducing yield. Therefore, a cutting wire detection device is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Given the following technical problems in the existing technology: wire breakage will cause cutting interruption, affecting production efficiency, and may also damage silicon wafers, reducing yield.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a cutting line detection device, including a receiving frame, a servo electric cylinder is provided at one end of the upper side of the receiving frame, a pull rod is provided at the movable end of the servo electric cylinder, and a control arm is rotatably connected to the other end of the receiving frame. A linkage shaft is provided on the control arm, and the linkage shaft passes through the receiving frame and is fixedly connected to the assembly frame. One end of the pull rod is provided with a slide rod, and the control arm is recessed with a limiting groove. The slide rod extends into the limiting groove, and the slide rod is movably connected to the limiting groove. The assembly frame is T-shaped, with a swing arm at each end. One end of the swing arm is connected to a connecting shaft that extends into the assembly frame, and the other end of the swing arm is rotatably connected to a detection wheel.

[0007] As a preferred technical solution for a cutting line detection device, a limiting plate is provided on one side of the control arm, and a limiting platform is provided on the receiving frame, wherein the limiting plate and the limiting platform are movably abutted together; When the limit plate on the control arm contacts, the limit platform stops the control arm from swinging further to the right, thus limiting the control arm.

[0008] As a preferred technical solution for a cutting line detection device, the linkage shaft is also provided with a pressing arm, the assembly frame has a recessed movable cavity, the pressing arm is in the movable cavity, a pressure sensor is fixedly connected to the movable cavity, and an elastic sheet is provided between the pressure sensor and the pressing arm; The lever compresses the elastic plate through the linkage shaft and the extrusion arm. The elastic plate transmits the elastic force to the pressure sensor. The pressure sensor is symmetrically distributed on the assembly frame and located between the two linkage shafts.

[0009] As a preferred technical solution for a cutting line detection device, the elastic sheet is U-shaped, and the top end of the elastic sheet is in movable contact with the extrusion arm.

[0010] As a preferred technical solution for a cutting line detection device, an assembly structure is provided on the lower side of the receiving frame. The assembly structure includes an assembly table, a second servo cylinder, and a connecting arm. The receiving frame is slidably connected above the assembly table. The second servo cylinder is provided inside the assembly table. The movable end of the second servo cylinder is provided with a connecting arm. The top end of the connecting arm is connected to the middle part of the receiving frame. The servo-electric cylinder 2 inside the assembly table controls the movement of the connecting arm and the receiving frame, bringing the swing arm and the detection wheel on the assembly frame closer to the cutting line, thereby enabling the detection of the cutting line.

[0011] As a preferred technical solution for a cutting line detection device, the outer periphery of the detection wheel is recessed with an annular groove, and a hard ceramic layer is disposed inside the annular groove; The ceramic layer can reduce wear.

[0012] As a preferred technical solution for a cutting line detection device, the portion of the connecting shaft located inside the assembly frame is connected to a torque sensor; The torque sensor detects the torque data of the connecting shaft to determine the tension force by cutting the line.

[0013] As a preferred technical solution for a wire cutting detection device, the post-breakage optimization method mainly involves confirming the breakage depth, confirming the breakage location, confirming the breakage type, setting the wire routing direction, and modifying the post-breakage process.

[0014] The beneficial effects of the cutting line detection device of the present invention are as follows: By using posture 1 and posture 2, cutting lines under different conditions can be detected. When the detection wheel is squeezed by the cutting line, the swing arm squeezes the elastic plate through the linkage shaft and the squeezing arm. The elastic plate transmits the elastic force to the pressure sensor. The tension of the cutting line is judged by the data detected by the two pressure sensors, so as to avoid false alarms or inaccurate detection. If the detection data suddenly decreases to zero, it may be that a wire breakage accident has occurred.

[0015] This supply of wire breakage solutions can meet various wire breakage scenarios, reducing degradation caused by silicon wafer morphology after wire breakage and resoldering. Especially after a production shutdown and restart, it can quickly restore production to its original level, recovering output and yield. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the device posture 1 of the present invention; Figure 2 This is a schematic diagram of the device posture 2 of the present invention; Figure 3 This is a schematic diagram of the tension detection structure of the present invention. Figure 1 ; Figure 4 This is a three-dimensional structural diagram of the detection wheel of the present invention; Figure 5 For the present invention Figure 2 A partially enlarged structural diagram of the S-section in the middle; Figure 6 This is a schematic diagram showing the connection relationship between the torque sensor and the connecting shaft of the present invention.

[0017] Reference numerals in the attached drawings: 1. Receiving frame; 2. Servo electric cylinder one; 3. Pull rod; 4. Swing rod; 5. Detection wheel; 6. Control arm; 7. Assembly frame; 8. Assembly table; 9. Servo electric cylinder two; 10. Connecting arm; 11. Limiting platform; 12. Linkage shaft; 13. Elastic sheet; 14. Pressure sensor; 15. Extrusion arm; 16. Limiting plate; 17. Torque sensor; 18. Limiting groove. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0021] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0022] like Figures 1-6 As shown, the present invention proposes a cutting line detection device, including a receiving frame 1. A servo electric cylinder 2 is provided at one end of the upper side of the receiving frame 1. A pull rod 3 is provided at the movable end of the servo electric cylinder 2. A control arm 6 is rotatably connected to the other end of the receiving frame 1. A linkage shaft is provided on the control arm 6. The linkage shaft passes through the receiving frame 1 and is fixedly connected to the assembly frame 7. One end of the pull rod 3 is provided with a slide rod, and the control arm 6 is recessed with a limiting groove 18. The slide rod extends into the limiting groove 18 and is movably connected to the limiting groove 18. The assembly frame 7 is T-shaped, and a swing rod 4 is provided at each end of the assembly frame 7. A connecting shaft 12 is provided at one end of the swing rod 4, and the connecting shaft 12 extends into the assembly frame 7. A detection wheel 5 is rotatably connected to the other end of the swing rod 4.

[0023] A limit plate 16 is provided on one side of the control arm 6, and a limit platform 11 is provided on the receiving frame 1. The limit plate 16 and the limit platform 11 are in movable contact. When the limit plate 16 on the control arm 6 contacts, the limit platform 11 blocks the control arm 6 from continuing to swing to the right, thus limiting the control arm 6.

[0024] The connecting shaft 12 is also provided with a pressing arm 15. The assembly frame 7 is recessed with a movable cavity. The pressing arm 15 is in the movable cavity. The movable cavity is fixedly connected with a pressure sensor 14. An elastic sheet 13 is provided between the pressure sensor 14 and the pressing arm 15. The lever 4 compresses the elastic plate 13 through the linkage shaft 12 and the compression arm 15. The elastic plate 13 transmits the elastic force to the pressure sensor 14. The pressure sensor 14 is symmetrically distributed on the assembly frame 7 and is located between the two linkage shafts 12.

[0025] The elastic sheet 13 is U-shaped, and the top end of the elastic sheet 13 is in contact with the compression arm 15.

[0026] An assembly structure is provided on the lower side of the receiving frame 1. The assembly structure includes an assembly table 8, a servo electric cylinder 2 9, and a connecting arm 10. The receiving frame 1 is slidably connected above the assembly table 8. The servo electric cylinder 2 9 is provided inside the assembly table 8. The movable end of the servo electric cylinder 2 9 is provided with a connecting arm 10. The top end of the connecting arm 10 is connected to the middle part of the receiving frame 1. The servo electric cylinder 2 9 inside the assembly table 8 controls the movement of the connecting arm 10 and the receiving frame 1, so that the swing arm 4 and the detection wheel 5 on the assembly frame 7 are close to the cutting line, thereby enabling the detection of the cutting line.

[0027] The outer periphery of the detection wheel 5 is recessed with an annular groove, and a hard ceramic layer is provided inside the annular groove; The ceramic layer can reduce wear.

[0028] The torque sensor 17 is connected to the portion of the connecting shaft 12 located inside the assembly frame 7. The torque sensor 17 detects the torque data of the connecting shaft 12 to determine the tension force by cutting the wire.

[0029] A fixing seat is provided on the lower side of the assembly table 8, and the fixing seat is connected to the cutting machine tool by threads.

[0030] The central shaft of the detection wheel 5 is connected to the position of the speed sensor and the speed sensor.

[0031] The pressure sensor 14 is model MPX2010 / MPX5010; The torque sensor 17 is model HBM T12HP; 1. Wire Breakage Detection and Location: During silicon wafer dicing, the tension and vibration of the dicing wire are critical parameters. When the dicing wire breaks, the system detects sudden tension changes and vibration variations through dicing wire detection devices and sensors, automatically recording the breakage location and time. Simultaneously, the system analyzes the cause of the breakage, such as wire wear or excessive cutting pressure.

[0032] 2. Adjust cutting parameters according to the location and cause of the wire breakage: If the breakage is caused by tool wear, reduce the cutting pressure to extend tool life. If the breakage is caused by excessive cutting speed, appropriately reduce the feed rate.

[0033] The detection wheel 5 is squeezed by the cutting line, and the swing arm 4 squeezes the elastic plate 13 through the linkage shaft 12 and the squeezing arm 15. The elastic plate 13 transmits the elastic force to the pressure sensor 14. The pressure sensor 14 is symmetrically distributed on the assembly frame 7 and is located between the two linkage shafts 12.

[0034] Example 1: The device can use posture 1 to detect the cutting line. The assembly table 8 is fixed to the cutting machine. The servo electric cylinder 2 9 in the assembly table 8 controls the movement of the connecting arm 10 and the receiving frame 1, so that the swing rod 4 and the detection wheel 5 on the assembly frame 7 are close to the cutting line. The inner wall of the annular groove of the detection wheel 5 abuts against the cutting line. The detection wheel 5 is used to squeeze the cutting line. The tension of the cutting line is determined by the data detected by the pressure sensor 14.

[0035] Example 2: As Figures 1-6 As shown, the device can use posture 2 to detect the cutting line. In posture 2, the assembly table 8 is fixed to the cutting machine tool. The servo electric cylinder 2 9 in the assembly table 8 controls the movement of the connecting arm 10 and the receiving frame 1, so that the swing arm 4 and the detection wheel 5 on the assembly frame 7 are close to the cutting line. The inner wall of the annular groove of the detection wheel 5 abuts against the detection wheel 5. The detection wheel 5 is used to squeeze the cutting line. The torque sensor 17 detects the torque data of the connecting shaft 12 to determine the tension of the cutting line. In posture 2, only one detection wheel 5 is involved in the detection, so that the device interferes less with the normal operation of the cutting line during the detection process, thereby enabling real-time detection and monitoring of the tension of the cutting line. Posture 1 can be converted to posture 2. The servo electric cylinder 2 controls the lever 3 to pull the control arm 6 to swing 90 degrees. The limit plate 16 on the control arm 6 contacts, and the limit platform 11 blocks the control arm 6 from swinging to the right, so that the control arm 6 is limited.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A cutting line detection device, characterized in that: Includes a receiving frame (1), one end of the receiving frame (1) is provided with a servo electric cylinder (2), the movable end of the servo electric cylinder (2) is provided with a pull rod (3), the other end of the receiving frame (1) is rotatably connected to a control arm (6), the control arm (6) is provided with a linkage shaft, the linkage shaft passes through the receiving frame (1) and is fixedly connected to the assembly frame (7); One end of the pull rod (3) is provided with a slide rod, and the control arm (6) is recessed with a limiting groove (18). The slide rod extends into the limiting groove (18), and the slide rod is movably connected to the limiting groove (18). The assembly frame (7) is T-shaped, and a swing rod (4) is provided at each end of the assembly frame (7). A connecting shaft (12) is provided at one end of the swing rod (4), and the connecting shaft (12) extends into the assembly frame (7). A detection wheel (5) is rotatably connected to the other end of the swing rod (4).

2. The cutting line detection device according to claim 1, characterized in that: A limiting plate (16) is provided on one side of the control arm (6), and a limiting platform (11) is provided on the receiving frame (1). The limiting plate (16) and the limiting platform (11) are in movable contact.

3. The cutting line detection device according to claim 1, characterized in that: The linkage shaft (12) is also provided with a pressing arm (15). The assembly frame (7) has a recessed movable cavity. The pressing arm (15) is in the movable cavity. The movable cavity is fixedly connected to a pressure sensor (14). An elastic sheet (13) is provided between the pressure sensor (14) and the pressing arm (15).

4. The cutting line detection device according to claim 3, characterized in that: The elastic sheet (13) is U-shaped, and the top end of the elastic sheet (13) is in contact with the compression arm (15).

5. The cutting line detection device according to claim 1, characterized in that: An assembly structure is provided on the lower side of the receiving frame (1). The assembly structure includes an assembly table (8), a servo electric cylinder (9), and a connecting arm (10). The receiving frame (1) is slidably connected above the assembly table (8). The servo electric cylinder (9) is provided inside the assembly table (8). The movable end of the servo electric cylinder (9) is provided with a connecting arm (10). The top end of the connecting arm (10) is connected to the middle part of the receiving frame (1).

6. The cutting line detection device according to claim 1, characterized in that: The outer periphery of the detection wheel (5) is recessed with an annular groove, and a hard ceramic layer is provided inside the annular groove.

7. The cutting line detection device according to claim 1, characterized in that: The torque sensor (17) is connected to the part of the connecting shaft (12) located inside the mounting frame (7).

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