Method and device for measuring binding force of diamond wire coating

Abstract

A measuring method and a measuring device for bonding force of a diamond wire coating relate to the technical field of diamond wire detection, the measuring device comprises a workbench, a winding mechanism, a transverse moving mechanism and an unwinding mechanism are arranged above the workbench, the winding mechanism and the transverse moving mechanism are arranged in parallel, the unwinding mechanism is mounted on the transverse moving mechanism, a diamond wire coil is mounted on the unwinding mechanism, and the winding mechanism and the transverse moving mechanism are arranged on the workbench. A base line is arranged on the winding mechanism, the winding mechanism rotates to wind the diamond wire on the base line arranged on the winding mechanism, and the transverse moving mechanism drives the unwinding mechanism to move along the base line and drives the diamond wire to be evenly wound on the surface of the base line. Through cooperative arrangement of the winding mechanism, the transverse moving mechanism and the unwinding mechanism, a diamond wire is driven to be uniformly wound on the surface of a base wire, and subsequent detection and measurement through an electron microscope are facilitated; a detachable base line is arranged between the winding mechanism and the transverse moving mechanism, base lines of different specifications can be conveniently installed, the binding force of diamond wire coatings of different specifications can be compared and detected through a pipe, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of diamond wire detection, and in particular to a method and a device for measuring the bonding force of a diamond wire coating. Background Art

[0002] Against the backdrop of the increasing depletion of global fossil energy and the increasing awareness of environmental protection, clean energy has become a global consensus, among which solar energy as one of the clean energy sources has attracted much attention; among them, diamond wire is the main cutting consumable for silicon wafers, and its industrial development directly affects the development of the photovoltaic industry.

[0003] In the photovoltaic industry, the main function of diamond wire is to cut photovoltaic silicon wafers efficiently and accurately. It is one of the key links to improve the conversion efficiency of photovoltaic cells and reduce production costs. It has now replaced the traditional mortar cutting process and become the mainstream.

[0004] Currently, the main product requirements for diamond wire in cutting factories are thin wire and strong cutting force. Thin wire can be effectively solved by using a busbar with a smaller wire diameter. The main parameters affecting the cutting force of diamond wire are the shedding of sand and the shedding of the diamond wire coating. There is currently no accurate measurement indicator for the cutting force index. Therefore, we propose a method and a measuring device for the measurement of the bonding force of the diamond wire coating. Summary of the Invention

[0005] In order to overcome the shortcomings of the background technology, the present invention discloses a method and a measuring device for measuring the bonding strength of diamond wire coating. The present invention arranges a winding mechanism, a transverse movement mechanism and an unwinding mechanism above the workbench to achieve the goal of winding the diamond wire on the baseline, which facilitates the subsequent detection of the width of the diamond wire column through an electron microscope and facilitates the measurement of the bonding strength of the coating.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: A device for measuring the bonding force of diamond wire coatings comprises a workbench, above which a winding mechanism, a transverse movement mechanism and an unwinding mechanism are arranged. The winding mechanism is arranged parallel to the transverse movement mechanism, the unwinding mechanism is mounted on the transverse movement mechanism, the diamond wire roll is mounted on the unwinding mechanism, a baseline is provided on the winding mechanism, the winding mechanism rotates to wind the diamond wire around the baseline arranged thereon, and the transverse movement mechanism drives the unwinding mechanism to move along the baseline, driving the diamond wire to be evenly wound on the surface of the baseline.

[0007] The baseline is a steel wire with a diameter of 0.15 mm to 1 mm.

[0008] The winding mechanism includes a detection motor and a fixing seat, the baseline is arranged between the detection motor and the fixing seat, the detection motor and the fixing seat are coaxially arranged, one end of the baseline is connected to the output shaft of the detection motor, and the other end of the baseline is connected to the fixing seat.

[0009] The fixing seat is provided with a through hole, which is coaxially arranged with the output shaft of the detection motor. The through hole is provided with a threaded bolt at one end away from the detection motor, and a connecting rod with a rotatable connection is provided at the end of the bolt. The end of the connecting rod passes through the other end of the through hole and is provided with a coaxially arranged fixing hole. One end of the baseline is set in the fixing hole, and a fixing screw is provided on the side of the connecting rod. The end of the fixing screw passes through the side of the connecting rod and abuts against the baseline.

[0010] A first slide groove is provided on the upper surface of the workbench. The first slide groove is arranged parallel to the baseline, and the transverse movement mechanism is arranged in the first slide groove.

[0011] The transverse movement mechanism includes a drive motor and a limit screw. The drive motor is arranged at one end of the workbench. The output shaft of the drive motor passes through the workbench and is arranged in the first slide groove. A coaxial limit screw is provided on the output shaft of the drive motor. One end of the limit screw is connected to the output shaft of the drive motor, and the other end of the limit screw is rotatably connected to the inner wall of the first slide groove. The unwinding mechanism is arranged on the limit screw.

[0012] The unwinding mechanism includes a slider, a limit plate, a fixed plate, an unwinding wheel, a tension wheel, a first line-passing wheel, a friction wheel and a second line-passing wheel. The limit screw passes through the slider and is threadedly connected to the slider. A limit plate is provided at the upper end of the slider. The limit plate is arranged above the workbench. A longitudinally arranged fixed plate is provided at the upper end of the limit plate. The unwinding wheel, the tension wheel, the first line-passing wheel, the friction wheel and the second line-passing wheel are distributed on one side of the fixed plate.

[0013] One end of the unwinding wheel is rotatably connected to the fixed plate, and the diamond wire reel is installed on the unwinding wheel. A tension wheel is provided on the side of the unwinding wheel close to the baseline, and two rotatably connected first wire-passing wheels are respectively provided on both sides of the tension wheel. A friction wheel is provided on the side of the tension wheel close to the baseline, and two rotatably connected second wire-passing wheels are respectively provided on both sides of the friction wheel. The diamond wire is wound around the unwinding wheel, the tension wheel, the first wire-passing wheel, the friction wheel and the second wire-passing wheel.

[0014] The fixed plate is provided with a second longitudinally arranged slide groove, an adjusting screw rod is provided in the second slide groove, the upper end of the adjusting screw rod passes through the second slide groove and is provided with a knob, a threaded fixed block is provided on the adjusting screw rod, and the tension wheel is provided at the end of the fixed block and is rotatably connected to the fixed block.

[0015] A method for measuring the bonding strength of a diamond wire coating comprises the following steps: S1: glue that solidifies quickly on the surface of the winding mechanism baseline; S2: Install the diamond wire reel on the unwinding mechanism and stick the end of the diamond wire on the baseline; S3: Turn on the detection motor and the drive motor. When the baseline rotates, the diamond wire to be detected is wound on the baseline. The drive motor rotates to make the unwinding mechanism move horizontally. S4: Adjust the speed of the driving motor so that the baseline rotates one circle and the fixed plate moves to one side by the diameter of the diamond wire; S5: The maximum column width of the diamond wire coating is observed through an optical microscope to measure the bonding strength of the coating.

[0016] The present invention discloses a method and device for measuring the bonding strength of diamond wire coatings. The present invention drives the diamond wire to be evenly wound on the surface of the baseline through the coordinated arrangement of a winding mechanism, a transverse movement mechanism, and an unwinding mechanism, thereby facilitating subsequent detection and measurement through an electron microscope. A detachable baseline is arranged between the winding mechanism and the transverse movement mechanism to facilitate the installation of baselines of different specifications. Tubes are placed to perform comparative detection on the bonding strength of diamond wire coatings of different specifications, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a cross-sectional view of the fixing seat of the present invention; Figure 3 This is a front view of the unwinding mechanism of the present invention; Figure 4 is a cross-sectional view of the tension pulley of the present invention; Figure 5 is a cross-sectional view of the workbench of the present invention; In the figure: 1. Workbench; 2. Detection motor; 3. Fixed seat; 4. Base line; 5. First slide; 6. Fixed plate; 7. Diamond wire; 8. Perforation; 9. Bolt; 10. Connecting rod; 11. Fixed hole; 12. Fixing screw; 13. Unwinding wheel; 14. Tension wheel; 15. First wire-passing wheel; 16. Friction wheel; 17. Second wire-passing wheel; 18. Second slide; 19. Adjusting screw; 20. Knob; 21. Fixed block; 22. Driving motor; 23. Limiting screw; 24. Limiting plate; 25. Slider. DETAILED DESCRIPTION

[0018] The present invention is explained in detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the present invention.

[0019] Combined with attachment Figures 1 to 5 A device for measuring the bonding force of diamond wire coatings includes a workbench 1. A winding mechanism, a transverse movement mechanism, and an unwinding mechanism are provided above the workbench 1. The winding mechanism is arranged parallel to the transverse movement mechanism. The unwinding mechanism is installed on the transverse movement mechanism. The diamond wire 7 is wound and installed on the unwinding mechanism. A baseline 4 is provided on the winding mechanism. The winding mechanism rotates to wind the diamond wire 7 around the baseline 4 provided thereon. The transverse movement mechanism drives the unwinding mechanism to move along the baseline 4, driving the diamond wire 7 to be evenly wound on the surface of the baseline 4.

[0020] The baseline 4 is a steel wire, and the diameter of the baseline 4 is 0.15 mm-1 mm.

[0021] The winding mechanism includes a detection motor 2 and a fixed seat 3, and the baseline 4 is arranged between the detection motor 2 and the fixed seat 3. The detection motor 2 and the fixed seat 3 are coaxially arranged. One end of the baseline 4 is connected to the output shaft of the detection motor 2, and the end of the baseline 4 is detachably connected to the output shaft of the detection motor 2. The other end of the baseline 4 is connected to the fixed seat 3.

[0022] The fixing seat 3 is provided with a through hole 8, which is coaxially arranged with the output shaft of the detection motor 2. The through hole 8 is provided with a threaded bolt 9 at one end away from the detection motor 2. The position of the bolt 9 is adjusted to pull the baseline 4 outward to keep the baseline 4 in a taut state, which is convenient for winding the diamond wire 7. The end of the bolt 9 is provided with a rotatably connected connecting rod 10. The end of the connecting rod 10 passes through the other end of the through hole 8 and is provided with a coaxially arranged fixing hole 11. One end of the baseline 4 is set in the fixing hole 11. A fixing screw 12 is provided on the side of the connecting rod 10. The end of the fixing screw 12 passes through the side of the connecting rod 10 and abuts against the baseline 4. The output shaft of the detection motor 2 rotates to drive the baseline 4 to rotate, so that the connecting rod 10 rotates synchronously to keep the diamond wire 7 evenly wound.

[0023] A first slide groove 5 is provided on the upper surface of the workbench 1 . The first slide groove 5 is arranged parallel to the baseline 4 , and the transverse movement mechanism is arranged in the first slide groove 5 .

[0024] The transverse movement mechanism includes a drive motor 22 and a limit screw 23. The drive motor 22 is arranged at one end of the workbench 1. The drive motor 22 is electrically connected to the external controller. The output shaft of the drive motor 22 passes through the workbench 1 and is arranged in the first slide groove 5. A coaxial limit screw 23 is provided on the output shaft of the drive motor 22. One end of the limit screw 23 is connected to the output shaft of the drive motor 22, and the other end of the limit screw 23 is rotatably connected to the inner wall of the first slide groove 5. The unwinding mechanism is arranged on the limit screw 23.

[0025] The unwinding mechanism includes a slider 25, a limiting plate 24, a fixed plate 6, an unwinding wheel 13, a tension wheel 14, a first line-passing wheel 15, a friction wheel 16 and a second line-passing wheel 17. The limiting screw 23 passes through the slider 25 and is threadedly connected to the slider 25. A limiting plate 24 is provided at the upper end of the slider 25. The limiting plate 24 is arranged above the workbench 1. A longitudinally arranged fixed plate 6 is provided at the upper end of the limiting plate 24. The unwinding wheel 13, the tension wheel 14, the first line-passing wheel 15, the friction wheel 16 and the second line-passing wheel 17 are distributed on one side of the fixed plate 6.

[0026] One end of the unwinding wheel 13 is rotatably connected to the fixed plate 6, and the diamond wire 7 is wound on the unwinding wheel 13. The unwinding wheel 13 pays out the diamond wire 7. The unwinding wheel 13 is provided with a tension wheel 14 on the side close to the baseline 4. The tension wheel 14 adjusts the unwinding tension of the diamond wire 7 by adjusting the up and down positions. Two rotatably connected first wire wheels 15 are respectively provided on both sides of the tension wheel 14. The tension wheel 14 is provided with a rotatably connected friction wheel 16 on the side close to the baseline 4. The friction wheel 16 stabilizes the movement of the diamond wire 7 and keeps the diamond wire 7 moving stably when unwinding. Two rotatably connected second wire wheels 17 are respectively provided on both sides of the friction wheel 16. The first wire wheel 15 and the second wire wheel 17 change the direction of the diamond wire 7 passing the wire. The diamond wire 7 is wound around the unwinding wheel 13, the tension wheel 14, the first wire wheel 15, the friction wheel 16 and the second wire wheel 17.

[0027] The fixed plate 6 is provided with a longitudinally arranged second slide groove 18, and an adjusting screw rod 19 is provided in the second slide groove 18. The upper end of the adjusting screw rod 19 passes through the second slide groove 18 and is provided with a knob 20. The adjusting screw rod 19 is provided with a threaded fixed block 21. The tension wheel 14 is arranged at the end of the fixed block 21 and is rotatably connected to the fixed block 21. Rotating the knob 20 rotates the adjusting screw rod 19, thereby driving the fixed block 21 to move up and down, so as to adjust the upper and lower positions of the tension wheel 14 to change the unwinding tension of the diamond wire 7.

[0028] A method for measuring the bonding strength of a diamond wire coating comprises the following steps: S1: glue that solidifies quickly on the surface of the winding mechanism baseline 4; S2: Install 7 rolls of diamond wire on the unwinding mechanism and stick the end of the diamond wire 7 to the baseline 4; S3: Turn on the detection motor 2 and the drive motor 22. When the baseline 4 rotates, the diamond wire 7 to be detected is wound on the baseline 4. The drive motor 22 rotates to make the unwinding mechanism move horizontally. S4: Adjust the speed of the driving motor 22 so that the base line 4 rotates one circle and the fixing plate 6 moves to one side by the diameter of the diamond wire 7; S5: Observe the maximum column width of the diamond wire 7 coating through an optical microscope to measure the coating bonding strength.

[0029] The embodiment describes a method and device for measuring the bonding strength of diamond wire plating. When in use, first quickly solidify glue on the surface of the winding mechanism baseline 4, then install a roll of diamond wire 7 on the unwinding mechanism, pull out the end of the diamond wire 7 and wind it around the tension wheel 14, the first wire wheel 15, the friction wheel 16 and the second wire wheel 17, and stick the end to the baseline 4. Turn on the detection motor 2 and the drive motor 22. When the baseline 4 rotates, the diamond wire 7 to be detected is wound around the baseline 4. The drive motor 22 rotates to cause the unwinding mechanism to move laterally. The speed of the drive motor 22 is adjusted to keep the baseline 4 rotating one circle. The fixed plate 6 moves to one side by a distance of the diamond wire 7 wire diameter. The diamond wire 7 is wound around the baseline 4 as the baseline 4 rotates. After winding a certain number of circles, the diamond wire 7 is cut and the baseline 4 is removed. The maximum column width of the diamond wire 7 plating is observed through an optical microscope to measure the bonding strength of the plating.

[0030] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred embodiments, there are many methods and approaches to implement the technical solution. The above is only a preferred embodiment of the present invention. However, those skilled in the art should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these are within the scope of protection of the present invention.

Claims

1. A device for measuring the bonding strength of a diamond wire coating, comprising a workbench (1), a winding mechanism, a traverse mechanism, and an unwinding mechanism being provided above the workbench (1), characterized in that: The winding mechanism is arranged in parallel with the transverse mechanism, the unwinding mechanism is installed on the transverse mechanism, the diamond wire (7) is wound on the unwinding mechanism, a baseline (4) is provided on the winding mechanism, the winding mechanism rotates to wind the diamond wire (7) on the baseline (4) provided thereon, and the transverse mechanism drives the unwinding mechanism to move along the baseline (4), driving the diamond wire (7) to be evenly wound on the surface of the baseline (4).

2. The device for measuring the bonding strength of diamond wire coating according to claim 1, characterized in that: The baseline (4) is a steel wire, and the diameter of the baseline (4) is 0.15 mm-1 mm.

3. The device for measuring the bonding strength of a diamond wire coating according to claim 1, wherein: The winding mechanism comprises a detection motor (2) and a fixing seat (3), a baseline (4) is arranged between the detection motor (2) and the fixing seat (3), the detection motor (2) and the fixing seat (3) are coaxially arranged, one end of the baseline (4) is connected to the output shaft of the detection motor (2), and the other end of the baseline (4) is connected to the fixing seat (3).

4. The device for measuring the bonding strength of a diamond wire coating according to claim 3, wherein: The fixing seat (3) is provided with a through hole (8), the through hole (8) is coaxially arranged with the output shaft of the detection motor (2), the through hole (8) is provided with a threaded bolt (9) at one end away from the detection motor (2), the end of the bolt (9) is provided with a rotatably connected connecting rod (10), the end of the connecting rod (10) passes through the other end of the through hole (8) and is provided with a coaxially arranged fixing hole (11), one end of the baseline (4) is arranged in the fixing hole (11), the side of the connecting rod (10) is provided with a fixing screw (12), the end of the fixing screw (12) passes through the side of the connecting rod (10) and abuts against the baseline (4).

5. The device for measuring the bonding strength of diamond wire coating according to claim 1, wherein: The upper surface of the workbench (1) is provided with a first slide groove (5), the first slide groove (5) is arranged parallel to the baseline (4), and the transverse movement mechanism is arranged in the first slide groove (5).

6. The device for measuring the bonding strength of a diamond wire coating according to claim 1, wherein: The transverse movement mechanism includes a driving motor (22) and a limiting screw (23), wherein the driving motor (22) is arranged at one end of the workbench (1), and the output shaft of the driving motor (22) passes through the workbench (1) and is arranged in the first slide groove (5), and a limiting screw (23) is coaxially arranged on the output shaft of the driving motor (22), one end of the limiting screw (23) is connected to the output shaft of the driving motor (22), and the other end of the limiting screw (23) is rotatably connected to the inner wall of the first slide groove (5), and the unwinding mechanism is arranged on the limiting screw (23).

7. The device for measuring the bonding strength of a diamond wire coating according to claim 6, wherein: The unwinding mechanism comprises a slider (25), a limiting plate (24), a fixing plate (6), an unwinding wheel (13), a tension wheel (14), a first wire-passing wheel (15), a friction wheel (16) and a second wire-passing wheel (17); the limiting screw (23) passes through the slider (25) and is threadedly connected to the slider (25); a limiting plate (24) is provided at the upper end of the slider (25); the limiting plate (24) is arranged above the workbench (1); a fixing plate (6) is provided at the upper end of the limiting plate (24); and the unwinding wheel (13), the tension wheel (14), the first wire-passing wheel (15), the friction wheel (16) and the second wire-passing wheel (17) are distributed on one side of the fixing plate (6).

8. The device for measuring the bonding strength of diamond wire coating according to claim 7, characterized in that: One end of the unwinding wheel (13) is rotatably connected to the fixed plate (6), and the diamond wire (7) is wound on the unwinding wheel (13). A tension wheel (14) is provided on the side of the unwinding wheel (13) close to the baseline (4), and two first wire-passing wheels (15) are provided on both sides of the tension wheel (14). A friction wheel (16) is provided on the side of the tension wheel (14) close to the baseline (4), and two second wire-passing wheels (17) are provided on both sides of the friction wheel (16). The diamond wire (7) is wound on the unwinding wheel (13), the tension wheel (14), the first wire-passing wheel (15), the friction wheel (16) and the second wire-passing wheel (17).

9. The device for measuring the bonding strength of a diamond wire coating according to claim 8, wherein: The fixing plate (6) is provided with a second longitudinally arranged chute (18), an adjusting screw rod (19) is provided in the second chute (18), an upper end of the adjusting screw rod (19) passes through the second chute (18) and is provided with a knob (20), a fixing block (21) connected by a thread is provided on the adjusting screw rod (19), and a tension wheel (14) is provided at the end of the fixing block (21) and is rotatably connected to the fixing block (21).

10. A method for measuring the bonding strength of a diamond wire coating, characterized by: The measurement is performed using the measuring device according to any one of claims 1 to 9, comprising the following steps: S1: rapidly solidifying glue on the surface of the winding mechanism baseline (4); S2: Install the diamond wire (7) roll on the unwinding mechanism, and stick the end of the diamond wire (7) on the baseline (4); S3: Turn on the detection motor (2) and the drive motor (22), and when the baseline (4) rotates, the diamond wire (7) to be detected is wound on the baseline (4), and the drive motor (22) rotates to make the unwinding mechanism move horizontally; S4: adjusting the speed of the driving motor (22) so that the base line (4) rotates one circle and the fixed plate (6) moves to one side by a distance of the diameter of the diamond wire (7); S5: The maximum column width of the diamond wire (7) coating is observed through an optical microscope to measure the bonding strength of the coating.

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