A tension monitoring device for diamond wire

Abstract

The present invention provides a tension monitoring device for a diamond wire, a plurality of supporting legs are installed on the bottom surface of a workbench, an observation plate mechanism is installed at the center position of the front end of the top surface of the workbench, a first straightening mechanism is installed at the left end of the top surface, a second straightening mechanism is installed at the right end of the top surface, and a first lighting mechanism and a second lighting mechanism are symmetrically arranged in the center line direction of the top surface. In the tension monitoring device for a diamond wire described in the present invention, the first lighting mechanism and the second lighting mechanism simultaneously play a lighting role, the observation plate mechanism limits the observation range, and can enable the staff to monitor the diamond wire saw more clearly, thereby improving the work efficiency, the baffle is used to protect the camera and prevent the camera from falling, and the first straightening mechanism and the second straightening mechanism can straighten the diamond wire saw to the left and right ends respectively at the same time, which is convenient for the staff to monitor.

Description

Technical Field

[0001] The invention belongs to the field of diamond wire saw manufacturing, and in particular relates to a tension monitoring device for a diamond wire. Background Art

[0002] During the manufacturing process of diamond wire saws, it is necessary to monitor the diamond particles on the diamond wire saw. Because the diamond wire is a linear structure, it cannot be monitored under normal circumstances. Therefore, a straightening mechanism is needed to straighten the diamond wire to facilitate the staff to monitor the diamond particles on the diamond wire saw. A lighting mechanism is also needed during the monitoring process, but the existing lighting mechanism is not flexible enough, resulting in poor lighting effects, so we need to design a new diamond wire detection device. Summary of the invention

[0003] In view of this, the present invention aims to provide a tension monitoring device for a diamond wire to solve the problems of low flexibility of the existing technical lighting mechanism and poor monitoring effect of the existing technology.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A tension monitoring device for a diamond wire comprises an observation plate mechanism, a first straightening mechanism, a second straightening mechanism, a first lighting mechanism, a second lighting mechanism, a shooting mechanism, a visual controller and a workbench. A plurality of supporting legs are installed on the bottom surface of the workbench. The observation plate mechanism is installed at the center position of the front end of the top surface of the workbench. The first straightening mechanism is installed on the left end of the top surface, and the second straightening mechanism is installed on the right end of the top surface. The first lighting mechanism and the second lighting mechanism are symmetrically arranged in the direction of the center line of the top surface, and the first lighting mechanism and the second lighting mechanism are both located between the first straightening mechanism and the second straightening mechanism. The shooting mechanism comprises a camera, a first horizontal plate, a baffle and a support plate. The camera is installed on the top surface of the first horizontal plate, and a baffle is arranged on both left and right ends of the top surface of the first horizontal plate. The left and right ends of the bottom surface of the first horizontal plate are respectively fixedly installed to the rear end of the top surface of the workbench through a support plate, and the camera and the observation plate mechanism are in the same vertical plane. The visual controller is also installed on the rear end of the top surface of the workbench and is located on the right side of the first horizontal plate. The visual controller is connected to the camera through a wire, and the visual controller is also connected to a PLC through a wire.

[0006] Furthermore, the first straightening mechanism and the second straightening mechanism have the same structure, and the first straightening mechanism includes a first connecting column, a first fixed wheel, a first central axis, a first moving wheel, a first motor, a first fixing plate and a first bolt. The bottom surface of the first connecting column is fixedly connected to the first fixing plate, and the first fixing plate is fixedly installed to the top surface of the workbench by the first bolt. The top surface of the first connecting column is fixedly installed to the first fixed wheel, and the bottom end of the first central axis is movably connected to the first fixed wheel by the first bearing. The top end of the first central axis first passes through the first moving wheel and is fixedly connected to the rotating shaft of the first motor, and the first central axis is fixedly connected to the first moving wheel, and the PLC is connected to the first motor through the first driver.

[0007] Furthermore, the first lighting mechanism and the second lighting mechanism have the same structure, the first lighting mechanism includes a second horizontal plate, a lighting unit, a connecting plate, a third fixing plate and a third bolt, the left end of the bottom surface of the second horizontal plate is fixedly connected to the third fixing plate by the connecting plate to form a U-shaped plate structure, the third fixing plate is fixedly connected to the top surface of the workbench by the third bolt, the top surface of the second horizontal plate is provided with a first elliptical groove and a second elliptical groove of an integrated structure, the first elliptical groove is above the second elliptical groove, and the short axis of the first elliptical groove is larger than the short axis of the second elliptical groove, the top end of the lighting unit is installed to the bottom surface of the inner wall of the first elliptical groove, the bottom end of the lighting unit passes through the second elliptical groove and is installed to the bottom surface of the second horizontal plate, the first elliptical groove and the second elliptical groove form a slide groove structure.

[0008] Furthermore, the lighting unit includes a limiting column, a light source lamp, a movable column, a rotating plate, a connecting ring and a fourth bolt. The limiting column and the movable column are an integrated structure. The limiting column is located above the movable column. The limiting column is installed to the bottom surface of the inner wall of the first elliptical groove. After the bottom end of the movable column passes through the second elliptical groove, it is movably connected to the left end of the top surface of the rotating plate through a third bearing. The right end of the top surface of the rotating plate is threadedly connected to the fourth bolt and is installed to the bottom surface of the second horizontal plate through the fourth bolt. The fourth bolt contacts the bottom surface of the second horizontal plate. The bottom surface of the rotating plate is fixedly connected to the connecting ring, and the light source lamp is installed in the connecting ring.

[0009] Furthermore, the observation plate mechanism includes a vertical plate, an observation plate, a fourth fixed plate and a fifth bolt. The bottom end of the vertical plate is fixedly connected to the fourth fixed plate. The fourth fixed plate is fixedly connected to the top surface of the workbench by the fifth bolt. The observation plate is installed behind the vertical plate. The observation plate is a rectangular structure, and the height of the bottom surface of the observation plate is equal to the height of the top surface of the first horizontal plate, and the height of the bottom surface of the observation plate is equal to the height of the bottom surface of the first fixed wheel.

[0010] Furthermore, the bottom surface height of the connecting ring is equal to the bottom surface height of the observation plate.

[0011] Compared with the prior art, the tension monitoring device for diamond wire described in the present invention has the following advantages:

[0012] (1) In the diamond wire tension monitoring device described in the present invention, the first lighting mechanism and the second lighting mechanism simultaneously play a lighting role, the observation plate mechanism limits the observation range, and enables the staff to monitor the diamond wire saw more clearly, thereby improving the work efficiency. The baffle is used to protect the camera and prevent the camera from falling. The first straightening mechanism and the second straightening mechanism can straighten the diamond wire saw to the left and right ends respectively at the same time, which is convenient for the staff to monitor.

[0013] (2) The present invention describes a tension monitoring device for a diamond wire, wherein the rotating shaft of the first motor is used to drive the first central axis to rotate, and the rotating shaft of the second motor is used to drive the second central axis to rotate. The first moving wheel, the first fixed wheel, the second moving wheel and the second fixed wheel all play a limiting role. The bottom surface height of the observation plate is equal to the top surface height of the first horizontal plate to ensure the monitoring efficiency of the camera. The bottom surface height of the observation plate is equal to the bottom surface height of the first fixed wheel to ensure the lighting efficiency of the light source lamp. The staff manually moves the limiting column along the direction of the first elliptical groove to achieve the forward and backward movement of the light source lamp. After the staff loosens and adjusts the fourth bolt downward, they manually rotate the rotating plate. The rotating plate drives the connecting ring to rotate, but the rotating plate does not drive the movable column to rotate. The connecting ring drives the light source lamp to rotate, thereby improving the flexibility of the light source lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 A top view of a tension monitoring device for a diamond wire according to an embodiment of the present invention;

[0016] Figure 2 It is a schematic diagram of a tension monitoring device for a diamond wire according to an embodiment of the present invention;

[0017] Figure 3 is a schematic diagram of a first straightening mechanism according to an embodiment of the present invention;

[0018] Figure 4 is a schematic diagram of a second straightening mechanism according to an embodiment of the present invention;

[0019] Figure 5 is a first schematic diagram of a first lighting mechanism according to an embodiment of the present invention;

[0020] Figure 6 This is an enlarged schematic diagram of A according to an embodiment of the present invention;

[0021] Figure 7 This is a second schematic diagram of the first lighting mechanism according to an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 1-observation plate mechanism; 11-vertical plate; 12-observation plate; 13-fourth fixed plate; 14-fifth bolt; 2-first straightening mechanism; 21-first connecting column; 22-first fixed wheel; 23-first middle axis; 24-first moving wheel; 25-first motor; 26-first fixed plate; 27-first bolt; 3-second straightening mechanism; 31-second connecting column; 32-second fixed wheel; 33-second middle axis; 34-second moving wheel; 35-second motor; 36-second fixed plate; 37-second bolt; 4-first lighting mechanism; 41-second horizontal plate; 42-lighting unit; 421-limiting column; 422-light source lamp; 423-movable column; 424-rotating plate; 425-connecting ring; 426-fourth bolt; 43-connecting plate; 44-third fixing plate; 45-third bolt; 46-first elliptical groove; 47-second elliptical groove; 5-second lighting mechanism; 6-shooting mechanism; 61-camera; 62-first horizontal plate; 63-baffle; 64-support plate; 7-visual controller; 8-workbench. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0028] like Figure 1-7 As shown, a tension monitoring device for a diamond wire comprises: an observation plate mechanism 1, a first straightening mechanism 2, a second straightening mechanism 3, a first lighting mechanism 4, a second lighting mechanism 5, a shooting mechanism 6, a visual controller 7 and a workbench 8, a plurality of legs are installed on the bottom surface of the workbench 8, the observation plate mechanism 1 is installed at the center position of the front end of the top surface of the workbench 8, the first straightening mechanism 2 is installed at the left end of the top surface, the second straightening mechanism 3 is installed at the right end of the top surface, the first lighting mechanism 4 and the second lighting mechanism 5 are symmetrically arranged in the center line direction of the top surface, and the first lighting mechanism 4 and the second lighting mechanism 5 are both located between the first straightening mechanism 2 and the second straightening mechanism 3, and the shooting mechanism 6 is arranged between the first straightening mechanism 2 and the second straightening mechanism 3. The mechanism 6 includes a camera 61, a first horizontal plate 62, a baffle 63 and a support plate 64. The camera 61 is installed on the top surface of the first horizontal plate 62, and a baffle 63 is set at both ends of the top surface of the first horizontal plate 62. The left and right ends of the bottom surface of the first horizontal plate 62 are fixed to the rear end of the top surface of the workbench 8 through a support plate 64, and the camera 61 and the observation plate mechanism 1 are in the same vertical plane. The visual controller 7 is also installed at the rear end of the top surface of the workbench 8 and is on the right side of the first horizontal plate 62. The visual controller 7 is connected to the camera 61 through a wire. The visual controller 7 is also connected to the PLC through a wire. The PLC model is Siemens S7-200 smart, the model of the vision controller 7 is SCI-Q2, the model of the camera 61 is OPT-VCT28 / 2.8-0.10X, the first lighting mechanism 4 and the second lighting mechanism 5 simultaneously play a lighting role, the observation plate mechanism 1 limits the observation range, which enables the staff to monitor the diamond wire saw more clearly and improves the work efficiency. The baffle 63 is used to protect the camera and prevent the camera 61 from falling. The first straightening mechanism 2 and the second straightening mechanism 3 can straighten the diamond wire saw to the left and right ends respectively, which is convenient for the staff to monitor.

[0029] like Figure 3As shown, the first straightening mechanism 2 and the second straightening mechanism 3 have the same structure. The first straightening mechanism 2 includes a first connecting column 21, a first fixed wheel 22, a first central axis 23, a first moving wheel 24, a first motor 25, a first fixing plate 26 and a first bolt 27. The bottom surface of the first connecting column 21 is fixedly connected to the first fixing plate 26, and the first fixing plate 26 is fixedly installed to the top surface of the workbench 8 by the first bolt 27. The top surface of the first connecting column 21 is fixedly installed to the first fixed wheel 22. The bottom end of the first central axis 23 is movably connected to the first fixed wheel 22 through a first bearing. The top end of the first central axis 23 first passes through the first moving wheel 24 and is fixedly connected to the rotating wheel of the first motor 25. The first central shaft 23 is fixedly connected to the first moving wheel 24, the PLC is connected to the first motor 25 through the first driver, the first motor 25 is a servo motor, and the model is MS-80STE-M02430B-20P7, the rotating shaft of the first motor 25 is used to drive the first central shaft 23 to rotate, because the bottom end of the first central shaft 23 is movably connected to the first fixed wheel 22 through the first bearing, the first central shaft 23 is fixedly connected to the first moving wheel 24, the first central shaft 23 will drive the first moving wheel 24 to rotate, but will not drive the first fixed wheel 22 to rotate, the first moving wheel 24 and the first fixed wheel 22 both play a limiting role, and the model of the first driver is HB2-15B.

[0030] like Figure 4 As shown, the second straightening mechanism 3 includes a second connecting column 31, a second fixed wheel 32, a second central axis 33, a second moving wheel 34, a second motor 35, a second fixing plate 36 and a second bolt 37. The bottom surface of the second connecting column 31 is fixedly connected to the second fixing plate 36. The second fixing plate 36 is fixedly mounted to the top surface of the workbench 8 by the second bolt 37. The top surface of the second connecting column 31 is fixedly mounted to the second fixed wheel 32. The bottom end of the second central axis 33 is movably connected to the second fixed wheel 32 by the first bearing. The top end of the second central axis 33 first passes through the second moving wheel 34 and is fixedly connected to the rotating shaft of the second motor 35. The second moving wheel 34 is fixed, and the PLC is connected to the second motor 35 through the second driver. The second motor 35 is a servo motor, and the model is MS-80STE-M02430B-20P7. The rotating shaft of the second motor 35 is used to drive the second central axis 33 to rotate. Because the second central axis 33 is fixed to the second moving wheel 34, the bottom end of the second central axis 33 is movably connected to the second fixed wheel 32 through the first bearing, so the first central axis 23 will drive the second moving wheel 34 to rotate, but will not drive the second fixed wheel 32 to rotate. The second moving wheel 34 and the second fixed wheel 32 both play a limiting role, and the second driver model is HB2-15B.

[0031] like Figure 5-6As shown, the first lighting mechanism 4 and the second lighting mechanism 5 have the same structure and the same working principle, so only the first lighting mechanism 4 is described in detail, and the second lighting mechanism 5 is not described in detail. The first lighting mechanism 4 includes a second transverse plate 41, a lighting unit 42, a connecting plate 43, a third fixing plate 44 and a third bolt 45. The left end of the bottom surface of the second transverse plate 41 is fixedly connected to the third fixing plate 44 through the connecting plate 43 to form a U-shaped plate structure. The third fixing plate 44 is fixedly connected to the top surface of the workbench 8 through the third bolt 45. The top surface of the second transverse plate 41 is provided with a first elliptical groove 46 and a second elliptical groove 47 of an integral structure. The first elliptical groove 46 is above the second elliptical groove 47, and the short axis of the first elliptical groove 46 is larger than the short axis of the second elliptical groove 47, so that the third bolt 45 can slide in the first elliptical groove 46. The top end of the lighting unit 42 is installed to the bottom surface of the inner wall of the first elliptical groove 46, and the bottom end of the lighting unit 42 is installed to the bottom surface of the second transverse plate 41 through the second elliptical groove 47. The first elliptical groove 46 and the second elliptical groove 47 form a sliding groove structure.

[0032] like Figure 7 As shown, the lighting unit 42 includes a limiting column 421, a light source lamp 422, a movable column 423, a rotating plate 424, a connecting ring 425 and a fourth bolt 426. The limiting column 421 and the movable column 423 are an integrated structure. The limiting column 421 is located above the movable column 423. The limiting column 421 is installed to the bottom surface of the inner wall of the first elliptical groove 46. After the bottom end of the movable column 423 passes through the second elliptical groove 47 (so the staff can move the limiting column 421 along the direction of the first elliptical groove 46 by hand, the light source lamp 422 can be moved back and forth, thereby improving the flexibility of the light source lamp 422), it is movably connected to the left end of the top surface of the rotating plate 424 through the third bearing, the right end of the top surface of the rotating plate 424 is threadedly connected to the fourth bolt 426, and is installed to the bottom surface of the second horizontal plate 41 through the fourth bolt 426. The four bolts 426 are in contact with the bottom surface of the second horizontal plate 41, and the bottom surface of the rotating plate 424 is fixedly connected to the connecting ring 425. The light source lamp 422 is installed in the connecting ring 425. The model of the light source lamp 422 is RI9000-W (because the right end of the top surface of the rotating plate 424 is threadedly connected to the fourth bolt 426, the bottom surface of the rotating plate 424 is fixedly connected to the connecting ring 425, and the bottom end of the movable column 423 passes through the second elliptical groove 47 and is movably connected to the left end of the top surface of the rotating plate 424 through the third bearing. Therefore, the staff loosens and adjusts the fourth bolt 426 downward, and then rotates the rotating plate 424 by hand. The rotating plate 424 drives the connecting ring 425 to rotate, but the rotating plate 424 does not drive the movable column 423 to rotate. The connecting ring 425 drives the light source lamp 422 to rotate, thereby improving the flexibility of the light source lamp 422).

[0033] like Figure 1As shown, the observation plate mechanism 1 includes a vertical plate 11, an observation plate 12, a fourth fixed plate 13 and a fifth bolt 14. The bottom end of the vertical plate 11 is fixedly connected to the fourth fixed plate 13. The fourth fixed plate 13 is fixedly connected to the top surface of the workbench 8 by the fifth bolt 14. The observation plate 12 is installed behind the vertical plate 11. The observation plate 12 is a rectangular structure, and the bottom surface height of the observation plate 12 is equal to the top surface height of the first horizontal plate 62 to ensure the monitoring efficiency of the camera 61. The bottom surface height of the observation plate 12 is equal to the bottom surface height of the first fixed wheel 22 to ensure the lighting efficiency of the light source lamp 422.

[0034] like Figure 2 and Figure 7 As shown, the bottom height of the connecting ring 425 is equal to the bottom height of the observation plate 12, so as to ensure that the diamond wire saw can move behind the observation plate 12, making it easier for the staff to monitor the diamond wire saw.

[0035] The working principle of the invention is as follows: preparation: the staff connects the visual controller 7 to the display screen through a wire, the staff winds one end of the diamond wire saw around the first central axis 23 (the first central axis 23 is used for releasing the wire), and the other end around the second central axis 33 (the second central axis 33 is used for reeling in the wire), and the staff moves the limit column 421 along the direction of the first elliptical groove 46 by hand to realize the forward and backward movement of the light source lamp 422, and then the staff loosens and adjusts the fourth bolt 426 downward, and then rotates the rotating plate 424 by hand, and the rotating plate 424 drives the connecting ring 425 to rotate, but the rotating plate 424 does not drive the movable column 423 to rotate, and the connecting ring 425 drives the light source lamp 422 to rotate, and finally makes the light source lamp 422 face the direction of the observation plate, and at this time the staff tightens and adjusts the fourth bolt 426 upward until the fourth bolt 426 contacts the bottom surface of the rotating plate 424.

[0036] Diamond wire saw detection work: the staff turns on the PLC, and the PLC controls the rotation axis of the first motor 25 and the rotation axis of the second motor 35 through the first driver and the second driver respectively, and the rotation directions of the rotation axis of the first motor 25 and the rotation axis of the second motor 35 are opposite, so that the diamond wire saw is straightened, and the camera 61 transmits the captured image to the visual controller 7 through the wire for video processing, and the PLC controls the visual controller 7 to transmit the processed video to the display screen for monitoring by the staff.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tension monitoring device for a diamond wire, characterized in that: The invention comprises an observation plate mechanism (1), a first straightening mechanism (2), a second straightening mechanism (3), a first lighting mechanism (4), a second lighting mechanism (5), a shooting mechanism (6), a visual controller (7) and a workbench (8); a plurality of legs are installed on the bottom surface of the workbench (8); the observation plate mechanism (1) is installed at the center position of the front end of the top surface of the workbench (8); the first straightening mechanism (2) is installed at the left end of the top surface; the second straightening mechanism (3) is installed at the right end of the top surface; the first lighting mechanism (4) and the second lighting mechanism (5) are symmetrically arranged in the direction of the center line of the top surface; the first lighting mechanism (4) and the second lighting mechanism (5) are both located between the first straightening mechanism (2) and the second straightening mechanism (3); the shooting mechanism (6) comprises a camera (61), a first horizontal plate (62), a baffle (63) and a support plate (64), the camera (61) is mounted on the top surface of the first horizontal plate (62), and a baffle (63) is provided at both left and right ends of the top surface of the first horizontal plate (62), the left and right ends of the bottom surface of the first horizontal plate (62) are fixedly mounted to the rear end of the top surface of the workbench (8) through a support plate (64), and the camera (61) and the observation plate mechanism (1) are in the same vertical plane, the visual controller (7) is also mounted on the rear end of the top surface of the workbench (8) and is on the right side of the first horizontal plate (62), the visual controller (7) is connected to the camera (61) through a wire, and the visual controller (7) is also connected to the PLC through a wire; The first straightening mechanism (2) and the second straightening mechanism (3) have the same structure. The first straightening mechanism (2) comprises a first connecting column (21), a first fixed wheel (22), a first central axis (23), a first moving wheel (24), a first motor (25), a first fixing plate (26) and a first bolt (27). The bottom surface of the first connecting column (21) is fixedly connected to the first fixing plate (26). The first fixing plate (26) is fixedly mounted to the top surface of the workbench (8) by means of the first bolt (27). The top surface of the first connecting column (21) is fixedly mounted to the first fixed wheel (22). The bottom end of the first central axis (23) is movably connected to the first fixed wheel (22) by means of a first bearing. The top end of the first central axis (23) first passes through the first moving wheel (24) and is then fixedly connected to the rotating shaft of the first motor (25). The first central axis (23) is fixedly connected to the first moving wheel (24). The PLC is connected to the first motor (25) by means of a first driver. The first lighting mechanism (4) and the second lighting mechanism (5) have the same structure. The first lighting mechanism (4) comprises a second transverse plate (41), a lighting unit (42), a connecting plate (43), a third fixing plate (44) and a third bolt (45). The left end of the bottom surface of the second transverse plate (41) is fixedly connected to the third fixing plate (44) through the connecting plate (43) to form a U-shaped plate structure. The third fixing plate (44) is fixedly connected to the top surface of the workbench (8) through the third bolt (45). The second transverse plate (41) The top surface is provided with a first elliptical groove (46) and a second elliptical groove (47) of an integrated structure, the first elliptical groove (46) is located above the second elliptical groove (47), and the short axis of the first elliptical groove (46) is larger than the short axis of the second elliptical groove (47), the top end of the lighting unit (42) is installed on the bottom surface of the inner wall of the first elliptical groove (46), and the bottom end of the lighting unit (42) passes through the second elliptical groove (47) and is installed on the bottom surface of the second horizontal plate (41), and the first elliptical groove (46) and the second elliptical groove (47) form a sliding groove structure; The lighting unit (42) comprises a limiting column (421), a light source lamp (422), a movable column (423), a rotating plate (424), a connecting ring (425) and a fourth bolt (426); the limiting column (421) and the movable column (423) are an integrated structure; the limiting column (421) is located above the movable column (423); the limiting column (421) is installed to the bottom surface of the inner wall of the first elliptical groove (46); the bottom end of the movable column (423) passes through the second elliptical groove (46); After the circular groove (47), the third bearing is movably connected to the left end of the top surface of the rotating plate (424), the right end of the top surface of the rotating plate (424) is threadedly connected to the fourth bolt (426), and is installed to the bottom surface of the second horizontal plate (41) through the fourth bolt (426), the fourth bolt (426) contacts the bottom surface of the second horizontal plate (41), the bottom surface of the rotating plate (424) is fixedly connected to the connecting ring (425), and the light source lamp (422) is installed in the connecting ring (425); The observation plate mechanism (1) comprises a vertical plate (11), an observation plate (12), a fourth fixed plate (13) and a fifth bolt (14); the bottom end of the vertical plate (11) is fixedly connected to the fourth fixed plate (13); the fourth fixed plate (13) is fixedly connected to the top surface of the workbench (8) via the fifth bolt (14); the observation plate (12) is installed behind the vertical plate (11); the observation plate (12) is a rectangular parallelepiped structure; the bottom surface height of the observation plate (12) is equal to the top surface height of the first horizontal plate (62); and the bottom surface height of the observation plate (12) is equal to the bottom surface height of the first fixed wheel (22).

2. A tension monitoring device for a diamond wire according to claim 1, characterized in that: The height of the bottom surface of the connecting ring (425) is equal to the height of the bottom surface of the observation plate (12).

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