Circular saw blade sawtooth angle measuring device and method

Abstract

The invention discloses a device and a method for measuring the sawtooth angle of a circular saw blade, and aims to overcome the defect that the sawtooth angle of the circular saw blade is in contact with a tool bit in the measurement process, so that the risk of scratching the tool bit exists. The device comprises a machine body, a loading base arranged in a sliding mode is installed on the machine body, and a circular saw blade is rotationally installed on the loading base; after the light source irradiates saw teeth of the circular saw blade, light is projected to the display screen to form a saw tooth contour; a measuring disc attached to the display screen is rotationally installed on the machine body, and a plurality of measuring lines extending outwards from the center in the radial direction are arranged on the measuring disc. The saw tooth angle measuring efficiency and accuracy of the circular saw blade are high, and the risk that the tool bit is scratched and broken is avoided.

Description

Technical Field

[0001] This invention relates to the field of saw blade processing technology, and more specifically, to a device and method for measuring the angle of circular saw blade teeth. Background Technology

[0002] Currently, after circular saw blades are processed, the tooth angles need to be measured. The traditional method is manual measurement, finding the line connecting the blade tip and the center hole, and then measuring the angle between this line and the front and rear cutting faces using a protractor. This involves measuring several blades per saw blade, which is inefficient and inaccurate, making full inspection impossible; furthermore, processed blades are easily damaged during the inspection process. Chinese Patent Application No. 2023115640334 discloses a method for measuring the angle of alloy saw blades. The measurement process is direct and simple, and the measurement accuracy of the measuring device is greatly improved, fully meeting production accuracy requirements and applicable to measuring the angles of various small-pitch alloy saw blades. By modifying the vernier caliper, dial indicator, and dial indicator stand, the method enables the measurement of side angles and back angles, making the implementation of this device easier, cheaper, and more widely applicable. However, the measurement process involves contact with the blade tip, posing a risk of scratching the blade tip. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides a circular saw blade tooth angle measuring device and method, which has high efficiency and accuracy in measuring the circular saw blade tooth angle and avoids the risk of blade head scratches and chipping.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a circular saw blade tooth angle measuring device, comprising a body, a slidably mounted loading seat on the body, and a circular saw blade rotatably mounted on the loading seat; a light source and a display screen are mounted on the body, and the light source illuminates the saw blade teeth and projects the light onto the display screen to form the tooth outline; a measuring disk is rotatably mounted on the body and attached to the display screen, and a plurality of measuring lines extending radially outward from the center are set on the measuring disk.

[0005] When measuring the saw tooth angle of a circular saw blade, the saw blade is loaded onto a mounting base. The mounting base is slidable, facilitating adjustment of the saw blade's forward and backward position. The saw blade itself can rotate, thus adjusting the position of the saw teeth. When a light source shines on the saw teeth, the light is projected onto the display screen, forming the tooth profile. The saw blade is rotated, and the mounting base moves accordingly, aligning the tip of the tooth profile with the center of the measuring disc. The center position remains constant during the disc's rotation. The measuring disc is rotated so that the measuring line coincides with the outer edge and side edge of the tooth profile, respectively, recording the angles F and E. The angle between the front face and the Y-axis is the radial front angle (F), and the angle between the rear face and the X-axis is the radial rear angle (E). By projecting the saw teeth onto the display screen through light illumination, the saw tooth angle is measured by observing the tooth profile on the screen. The measurement process avoids direct contact with the saw blade, preventing scratches and chipping of the blade tip, and offers high efficiency and accuracy in tooth angle measurement.

[0006] Preferably, a slide rail corresponding to the loading seat is installed on the machine body, a slide block is slidably connected to the slide rail, and the loading seat is securely connected to the slide block.

[0007] The loading seat is mounted on the slide rail of the machine body via a slide block. The slide block slides along the slide rail, ensuring the smooth sliding of the loading seat.

[0008] Preferably, the slide rail is installed on the machine body.

[0009] The slide rail can be raised and lowered, allowing the circular saw blade mounted on the loading seat to be raised and lowered to adjust its height, thereby adjusting the size of the saw tooth profile projected on the display screen, which helps to improve the accuracy of saw tooth angle measurement.

[0010] Preferably, the slide rail is provided with a slide groove with a trapezoidal cross section, and the slide block is provided with a sliding head that matches the slide groove, and the sliding head is slidably connected to the slide groove.

[0011] The slide groove has a trapezoidal cross-section, and the sliding head on the slide block cooperates with the slide groove to prevent the slide block from separating from the slide rail.

[0012] Preferably, a gear ring is provided on the measuring plate, and a drive gear is installed on the machine body. The drive gear meshes with the gear ring for transmission, and the drive gear is connected to the adjusting handle.

[0013] Rotating the adjusting handle causes the drive gear to rotate, which in turn drives the measuring disc to rotate through the meshing of the drive gear and the gear ring. This operation is convenient.

[0014] Preferably, an angle scale line is set around the perimeter of the measuring disc, and the angle scale line is set on the outer surface of the machine body.

[0015] The angle scale lines facilitate accurate reading of the angle the measuring disc has rotated through.

[0016] Preferably, a tilted reflective surface is installed inside the machine body, and the light source shines on the reflective surface and then reflects onto the display screen.

[0017] An inclined reflective surface is set on the machine body to reflect light, so that the display screen mounted on the front of the machine body can project onto the saw teeth, which facilitates measurement operations.

[0018] Preferably, a focusing lens is mounted on the camera body, and the light source is positioned towards the focusing lens.

[0019] A focusing lens facilitates focusing operations, thereby adjusting the size of the jagged outline projected onto the display screen, which is convenient for measurement operations.

[0020] Preferably, a longitudinal shift seat corresponding to the measuring plate is provided on the machine body. The longitudinal shift seat is mounted on the machine body in a longitudinal direction. A transverse shift seat is mounted on the longitudinal shift seat in a transverse direction. The measuring plate is rotatably mounted on the transverse shift seat.

[0021] The longitudinal and transverse sliding supports allow the measuring disc to move horizontally and vertically, enabling fine-tuning of the measuring disc. After the sawtooth is projected onto the display screen, the tip of the sawtooth may not be centered on the measuring disc. By fine-tuning the measuring disc, the center of the measuring disc can be aligned with the tip of the sawtooth, facilitating subsequent measurement of the sawtooth angle.

[0022] A method for measuring the saw tooth angle of a circular saw blade, using a circular saw tooth angle measuring device, includes the following steps: S1, loading the circular saw blade onto a loading seat; S2, after the light source shines on the saw teeth of the circular saw blade, the light is projected onto a display screen to form a saw tooth profile; S3, rotating the circular saw blade and moving it in conjunction with the loading seat so that the tip of the saw tooth profile is at the center of the measuring disc; S4, rotating the measuring disc so that the measuring line coincides with the outer edge and the side edge of the saw tooth profile, respectively, and recording the angles F and E that have been rotated.

[0023] By illuminating the blade with light, the saw teeth are projected onto the display screen. The angle of the saw teeth is measured by measuring the angle of the saw tooth profile on the display screen. The measurement process does not involve direct contact with the circular saw blade, avoiding the risk of scratches and chipping of the blade. Moreover, the measurement of the saw tooth angle is highly efficient and accurate.

[0024] Compared with the prior art, the beneficial effects of the present invention are: (1) The circular saw blade tooth angle is measured by the circular saw blade tooth angle measuring device, which has high measurement efficiency and accuracy and avoids the risk of blade head scratches and chipping; (2) The slide rail can be raised and lowered, so that the circular saw blade can be raised and lowered to adjust the height, thereby adjusting the size of the saw tooth outline projected on the display screen, which is conducive to improving the accuracy of saw tooth angle measurement; (3) Angle scale lines are set on the surface of the machine body, which makes it easy to accurately read the angle through which the measuring disc rotates; (4) The size of the saw tooth outline projected on the display screen can be adjusted, which is convenient for measurement operation; (5) The measuring disc can be adjusted horizontally and vertically to make the center of the measuring disc overlap with the saw tooth tip, which is convenient for subsequent saw tooth angle measurement. Attached Figure Description

[0025] Figure 1 This is a front view of the present invention.

[0026] Figure 2 This is a side view of Embodiment 1 of the present invention.

[0027] Figure 3 This is a diagram showing the loading of the circular saw blade of the present invention.

[0028] Figure 4 This is a diagram of the measuring disc transmission of the present invention.

[0029] Figure 5 This is a schematic diagram of the measurement principle of the present invention.

[0030] Figure 6 This is a side view of Embodiment 2 of the present invention.

[0031] Figure 7 This is a side view of Embodiment 3 of the present invention.

[0032] Figure 8 This is a side view of Embodiment 4 of the present invention.

[0033] In the diagram: 1. Body, 2. Loading seat, 3. Slide rail, 4. Slide block, 5. Slide groove, 6. Sliding head, 7. Connecting column, 8. Locking sleeve, 9. Circular saw blade, 10. Lifting screw sleeve, 11. Limiting groove, 12. Light source, 13. Display screen, 14. Measuring plate, 15. Measuring line, 16. Angle scale line, 17. Gear ring, 18. Drive gear, 19. Adjusting handle, 20. Protective ring, 21. Locking screw, 22. Countersunk hole, 23. Positioning convex ring, 24. Longitudinal moving seat, 25. Lateral moving seat, 26. Reflecting surface, 27. Focusing lens. Detailed Implementation

[0034] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: A circular saw blade tooth angle measuring device (see...) Figures 1 to 5The system includes a body 1, on which a slidably mounted loading seat 2 is installed. A circular saw blade 9 is rotatably mounted on the loading seat 2. A slide rail 3 corresponding to the loading seat 2 is installed on the body 1, with the slide rail 3 extending forward and backward along its length. A slide block 4 is slidably connected to the slide rail 3, and the loading seat 2 is securely connected to the slide block 4. The slide block 4 slides forward and backward along the slide rail 3, ensuring the smooth sliding of the loading seat 2. A trapezoidal groove 5 is provided on the slide rail 3, and a sliding head 6 adapted to the groove 5 is provided on the slide block 4, slidably connected to the groove 5. A connecting post 7 is provided on the loading seat 2, with a threaded locking sleeve 8 connected to the connecting post 7. The center hole on the circular saw blade 9 is movably connected to the connecting post 7, and the locking sleeve 8 abuts against the surface of the circular saw blade 9 to position the circular saw blade 9. When the diameter of the center hole on the circular saw blade 9 is larger than the outer diameter of the connecting post 7, a positioning sleeve is first fitted on the connecting post 7. The inner diameter of the positioning sleeve is adapted to the connecting post 7, and the outer diameter of the positioning sleeve is adapted to the center hole on the circular saw blade 9, thereby ensuring the stable installation of the circular saw blade 9.

[0035] A light source 12 and a display screen 13 are mounted on the machine body 1. The light source 12 is located at the lower part of the machine body 1 and faces upwards. After the light source 12 illuminates the saw teeth of the circular saw blade 9, the light is projected onto the display screen 13 to form the outline of the saw teeth. A measuring disk 14, which is rotatably mounted on the machine body 1 and fits against the display screen 13, is circular in shape. Several measuring lines 15 extending radially outward from the center of the measuring disk 14 are provided on the measuring disk 14. An angle scale line 16 is set around the outer surface of the measuring disk 14. The angle scale line 16 is set on the outer surface of the machine body 1. The setting of the angle scale line 16 facilitates accurate reading of the angle rotated by the measuring disk 14.

[0036] A gear ring 17 is provided on the measuring disc 14, and a drive gear 18 is installed on the machine body 1. The drive gear 18 meshes with the gear ring 17 for transmission. The drive gear 18 is connected to an adjusting handle 19. Rotating the adjusting handle 19 causes the drive gear 18 to rotate, and through the meshing of the drive gear 18 with the gear ring 17, the measuring disc 14 is driven to rotate, making operation convenient. A protective ring 20 is provided on the edge of the measuring disc 14, and a locking screw 21 is connected to the protective ring 20. The end of the locking screw 21 abuts against the machine body 1 to position the measuring disc 14. A recessed hole 22 is provided on the machine body 1, and a positioning protrusion ring 23 is provided on the inner wall of the recessed hole 22. The measuring disc 14 is rotatably installed in the recessed hole 22, and the protective ring 20 is supported on the positioning protrusion ring 23. A positioning plate is connected to the inner side of the measuring disc 14, and the positioning plate presses against the display screen 13, thereby achieving axial positioning of the measuring disc 14.

[0037] An inclined reflective surface 26 is installed inside the body 1. Light from the light source 12 shines onto the reflective surface 26 and is then reflected onto the display screen 13. The reflective surface 26 is a mirror, located on the upper part of the body 1, and is inclined at 45 degrees. The display screen 13 is vertically mounted on the front side of the body 1. The inclined reflective surface 26 on the body 1 reflects light, allowing the display screen 13, mounted on the front side of the body 1, to project onto the sawtooth pattern, facilitating measurement operations. A focusing lens 27 is installed on the body 1, with the light source 12 facing the focusing lens 27, which is positioned between the light source 12 and the reflective surface 26. The focusing lens 27 facilitates focusing operations, allowing adjustment of the size of the sawtooth outline projected onto the display screen 13, thus facilitating measurement operations.

[0038] A method for measuring the saw tooth angle of a circular saw blade 9, using a circular saw tooth angle measuring device, includes the following steps: S1, loading the circular saw blade 9 onto a loading seat 2, then sliding the loading seat 2 inward so that the edge of the circular saw blade 9 is close to the light source 12; S2, the light from the light source 12 illuminates the saw teeth of the circular saw blade 9, and the light is projected onto a display screen 13 to form a saw tooth profile; S3, rotating the circular saw blade 9 and moving it in conjunction with the loading seat 2 so that the tip of the saw tooth profile is at the center of the measuring disk 14; S4, rotating the measuring disk 14 so that the measuring line 15 coincides with the outer edge and the side edge of the saw tooth profile, respectively, and recording the angles F and E rotated. Figure 5 As shown, the vertical measuring line 15 rotates until it coincides with the side edge of the sawtooth profile. The angle through which it rotates is the angle E between the rake face and the X-axis, called the radial rake angle. The horizontal measuring line 15 rotates until it coincides with the outer edge of the sawtooth profile. The angle through which it rotates is the angle F between the rake face and the Y-axis, called the radial rake angle.

[0039] By illuminating the saw teeth with light, the saw teeth are projected onto the display screen 13. The saw tooth angle is measured by measuring the angle of the saw tooth profile on the display screen 13. The saw tooth angle is measured without direct contact with the circular saw blade 9 during the measurement process, thus avoiding the risk of scratches and chipping of the blade. Moreover, the saw tooth angle measurement is highly efficient and accurate.

[0040] Example 2: A circular saw blade tooth angle measuring device (see...) Figure 6The system includes a body 1, on which a slidably mounted loading seat 2 is installed. A circular saw blade 9 is rotatably mounted on the loading seat 2. A slide rail 3 corresponding to the loading seat 2 is installed on the body 1, with the slide rail 3 extending forward and backward along its length. A slide block 4 is slidably connected to the slide rail 3, and the loading seat 2 is securely connected to the slide block 4. The slide block 4 slides forward and backward along the slide rail 3, ensuring the smooth sliding of the loading seat 2. A trapezoidal groove 5 is provided on the slide rail 3, and a sliding head 6 adapted to the groove 5 is provided on the slide block 4, slidably connected to the groove 5. A connecting post 7 is provided on the loading seat 2, with a threaded locking sleeve 8 connected to the connecting post 7. The center hole on the circular saw blade 9 is movably connected to the connecting post 7, and the locking sleeve 8 abuts against the surface of the circular saw blade 9 to position the circular saw blade 9. When the diameter of the center hole on the circular saw blade 9 is larger than the outer diameter of the connecting post 7, a positioning sleeve is first fitted on the connecting post 7. The inner diameter of the positioning sleeve is adapted to the connecting post 7, and the outer diameter of the positioning sleeve is adapted to the center hole on the circular saw blade 9, thereby ensuring the stable installation of the circular saw blade 9.

[0041] The slide rail 3 is mounted on the machine body 1. A screw and a guide rod are installed on the slide rail 3, both of which are movably inserted into the machine body 1. A lifting sleeve 10 is rotatably connected to the machine body 1, and the lifting sleeve 10 is threadedly connected to the screw. The rotation of the lifting sleeve 10 drives the screw to move up and down, thereby realizing the lifting and lowering movement of the slide rail 3. A limiting groove 11 is provided on the machine body 1, and the lifting sleeve 10 is installed in the limiting groove 11 to achieve upper and lower limits. Several actuating heads are circumferentially spaced on the outer wall of the lifting sleeve 10. By actuating the lifting sleeve 10, the lifting sleeve 10 is rotated, thereby realizing the lifting and lowering movement of the slide rail 3. The slide rail 3 can be raised and lowered, allowing the circular saw blade 9 mounted on the loading seat 2 to be raised and lowered to adjust its height, thereby adjusting the size of the saw tooth profile projected on the display screen 13, which helps to improve the accuracy of saw tooth angle measurement.

[0042] A light source 12 and a display screen 13 are mounted on the machine body 1. The light source 12 is located at the lower part of the machine body 1 and faces upwards. After the light source 12 illuminates the saw teeth of the circular saw blade 9, the light is projected onto the display screen 13 to form the outline of the saw teeth. A measuring disk 14, which is rotatably mounted on the machine body 1 and fits against the display screen 13, is circular in shape. Several measuring lines 15 extending radially outward from the center of the measuring disk 14 are provided on the measuring disk 14. An angle scale line 16 is set around the outer surface of the measuring disk 14. The angle scale line 16 is set on the outer surface of the machine body 1. The setting of the angle scale line 16 facilitates accurate reading of the angle rotated by the measuring disk 14.

[0043] A gear ring 17 is provided on the measuring disc 14, and a drive gear 18 is installed on the machine body 1. The drive gear 18 meshes with the gear ring 17 for transmission. The drive gear 18 is connected to an adjusting handle 19. Rotating the adjusting handle 19 causes the drive gear 18 to rotate, and through the meshing of the drive gear 18 with the gear ring 17, the measuring disc 14 is driven to rotate, making operation convenient. A protective ring 20 is provided on the edge of the measuring disc 14, and a locking screw 21 is connected to the protective ring 20. The end of the locking screw 21 abuts against the machine body 1 to position the measuring disc 14. A recessed hole 22 is provided on the machine body 1, and a positioning protrusion ring 23 is provided on the inner wall of the recessed hole 22. The measuring disc 14 is rotatably installed in the recessed hole 22, and the protective ring 20 is supported on the positioning protrusion ring 23. A positioning plate is connected to the inner side of the measuring disc 14, and the positioning plate presses against the display screen 13, thereby achieving axial positioning of the measuring disc 14.

[0044] An inclined reflective surface 26 is installed inside the body 1. Light from the light source 12 shines onto the reflective surface 26 and is then reflected onto the display screen 13. The reflective surface 26 is a mirror, located on the upper part of the body 1, and is inclined at 45 degrees. The display screen 13 is vertically mounted on the front side of the body 1. The inclined reflective surface 26 on the body 1 reflects light, allowing the display screen 13, mounted on the front side of the body 1, to project onto the sawtooth pattern, facilitating measurement operations. A focusing lens 27 is installed on the body 1, with the light source 12 facing the focusing lens 27, which is positioned between the light source 12 and the reflective surface 26. The focusing lens 27 facilitates focusing operations, allowing adjustment of the size of the sawtooth outline projected onto the display screen 13, thus facilitating measurement operations.

[0045] A method for measuring the saw tooth angle of a circular saw blade 9, using a circular saw tooth angle measuring device, includes the following steps: S1, loading the circular saw blade 9 onto a loading seat 2, then sliding the loading seat 2 inward so that the edge of the circular saw blade 9 is close to the light source 12; S2, the light from the light source 12 illuminates the saw teeth of the circular saw blade 9, and the light is projected onto a display screen 13 to form a saw tooth profile; S3, rotating the circular saw blade 9 and moving it in conjunction with the loading seat 2 so that the tip of the saw tooth profile is at the center of the measuring disk 14; S4, rotating the measuring disk 14 so that the measuring line 15 coincides with the outer edge and the side edge of the saw tooth profile, respectively, and recording the angles F and E rotated. Figure 5 As shown, the vertical measuring line 15 rotates until it coincides with the side edge of the sawtooth profile. The angle through which it rotates is the angle E between the rake face and the X-axis, called the radial rake angle. The horizontal measuring line 15 rotates until it coincides with the outer edge of the sawtooth profile. The angle through which it rotates is the angle F between the rake face and the Y-axis, called the radial rake angle.

[0046] By illuminating the saw teeth with light, the saw teeth are projected onto the display screen 13. The saw tooth angle is measured by measuring the angle of the saw tooth profile on the display screen 13. The saw tooth angle is measured without direct contact with the circular saw blade 9 during the measurement process, thus avoiding the risk of scratches and chipping of the blade. Moreover, the saw tooth angle measurement is highly efficient and accurate.

[0047] Example 3: A circular saw blade tooth angle measuring device (see...) Figure 7 The system includes a body 1, on which a slidably mounted loading seat 2 is installed. A circular saw blade 9 is rotatably mounted on the loading seat 2. A slide rail 3 corresponding to the loading seat 2 is installed on the body 1, with the slide rail 3 extending forward and backward along its length. A slide block 4 is slidably connected to the slide rail 3, and the loading seat 2 is securely connected to the slide block 4. The slide block 4 slides forward and backward along the slide rail 3, ensuring the smooth sliding of the loading seat 2. A trapezoidal groove 5 is provided on the slide rail 3, and a sliding head 6 adapted to the groove 5 is provided on the slide block 4, slidably connected to the groove 5. A connecting post 7 is provided on the loading seat 2, with a threaded locking sleeve 8 connected to the connecting post 7. The center hole on the circular saw blade 9 is movably connected to the connecting post 7, and the locking sleeve 8 abuts against the surface of the circular saw blade 9 to position the circular saw blade 9. When the diameter of the center hole on the circular saw blade 9 is larger than the outer diameter of the connecting post 7, a positioning sleeve is first fitted on the connecting post 7. The inner diameter of the positioning sleeve is adapted to the connecting post 7, and the outer diameter of the positioning sleeve is adapted to the center hole on the circular saw blade 9, thereby ensuring the stable installation of the circular saw blade 9.

[0048] A light source 12 and a display screen 13 are mounted on the machine body 1. The light source 12 is located at the lower part of the machine body 1 and faces upwards. After the light source 12 illuminates the saw teeth of the circular saw blade 9, the light is projected onto the display screen 13 to form the outline of the saw teeth. A measuring disk 14, which is rotatably mounted on the machine body 1 and fits against the display screen 13, is circular in shape. Several measuring lines 15 extending radially outward from the center of the measuring disk 14 are provided on the measuring disk 14. An angle scale line 16 is set around the outer surface of the measuring disk 14. The angle scale line 16 is set on the outer surface of the machine body 1. The setting of the angle scale line 16 facilitates accurate reading of the angle rotated by the measuring disk 14.

[0049] A gear ring 17 is provided on the measuring disc 14, and a drive gear 18 is installed on the machine body 1. The drive gear 18 meshes with the gear ring 17 for transmission. The drive gear 18 is connected to an adjusting handle 19. Rotating the adjusting handle 19 causes the drive gear 18 to rotate, and through the meshing of the drive gear 18 with the gear ring 17, the measuring disc 14 is driven to rotate, making operation convenient. A protective ring 20 is provided on the edge of the measuring disc 14, and a locking screw 21 is connected to the protective ring 20. The end of the locking screw 21 abuts against the machine body 1 to position the measuring disc 14. A recessed hole 22 is provided on the machine body 1, and a positioning protrusion ring 23 is provided on the inner wall of the recessed hole 22. The measuring disc 14 is rotatably installed in the recessed hole 22, and the protective ring 20 is supported on the positioning protrusion ring 23. A positioning plate is connected to the inner side of the measuring disc 14, and the positioning plate presses against the display screen 13, thereby achieving axial positioning of the measuring disc 14.

[0050] A longitudinal shift seat 24, corresponding to the measuring disk 14, is mounted on the machine body 1. The longitudinal shift seat 24 is longitudinally movably mounted on the machine body 1. A transverse shift seat 25, which moves laterally, is mounted on the longitudinal shift seat 24. The measuring disk 14 is rotatably mounted on the transverse shift seat 25. A longitudinal shift screw and a longitudinal shift guide rod are mounted on the machine body 1. Both the longitudinal shift screw and the longitudinal shift guide rod are movably inserted into the longitudinal shift seat 24. The longitudinal shift screw is threaded into the longitudinal shift seat 24 and is connected to a longitudinal shift knob. Rotation of the longitudinal shift screw drives the longitudinal shift seat 24 to move longitudinally. A transverse shift screw and a transverse shift guide rod are mounted on the longitudinal shift seat 24. Both the transverse shift screw and the transverse shift guide rod are movably inserted into the transverse shift seat 25. The transverse shift screw is threaded into the transverse shift seat 25 and is connected to a transverse shift knob. Rotation of the transverse shift screw drives the transverse shift seat 25 to move laterally.

[0051] The drive gear 18 is mounted on the transverse base 25 of the body 1, the end of the locking screw 21 abuts against the transverse base 25 of the body 1, and the countersunk hole 22 is provided on the transverse base 25.

[0052] The longitudinal and transverse shift seats 24 and 25 enable the measuring disk 14 to move laterally and longitudinally, thereby achieving fine-tuning of the measuring disk 14. After the sawtooth is projected onto the display screen 13, the tip of the sawtooth is not necessarily at the center of the measuring disk 14. At this time, by fine-tuning the measuring disk 14, the center of the measuring disk 14 is made to overlap with the tip of the sawtooth, which facilitates subsequent measurement of the sawtooth angle.

[0053] An inclined reflective surface 26 is installed inside the body 1. Light from the light source 12 shines onto the reflective surface 26 and is then reflected onto the display screen 13. The reflective surface 26 is a mirror, located on the upper part of the body 1, and is inclined at 45 degrees. The display screen 13 is vertically mounted on the front side of the body 1. The inclined reflective surface 26 on the body 1 reflects light, allowing the display screen 13, mounted on the front side of the body 1, to project onto the sawtooth pattern, facilitating measurement operations. A focusing lens 27 is installed on the body 1, with the light source 12 facing the focusing lens 27, which is positioned between the light source 12 and the reflective surface 26. The focusing lens 27 facilitates focusing operations, allowing adjustment of the size of the sawtooth outline projected onto the display screen 13, thus facilitating measurement operations.

[0054] A method for measuring the saw tooth angle of a circular saw blade 9, using a circular saw tooth angle measuring device, includes the following steps: S1, loading the circular saw blade 9 onto a loading seat 2, then sliding the loading seat 2 inward so that the edge of the circular saw blade 9 is close to the light source 12; S2, the light from the light source 12 illuminates the saw teeth of the circular saw blade 9, and the light is projected onto a display screen 13 to form a saw tooth profile; S3, rotating the circular saw blade 9 and moving it in conjunction with the loading seat 2 so that the tip of the saw tooth profile is at the center of the measuring disk 14; S4, rotating the measuring disk 14 so that the measuring line 15 coincides with the outer edge and the side edge of the saw tooth profile, respectively, and recording the angles F and E rotated. Figure 5 As shown, the vertical measuring line 15 rotates until it coincides with the side edge of the sawtooth profile. The angle through which it rotates is the angle E between the rake face and the X-axis, called the radial rake angle. The horizontal measuring line 15 rotates until it coincides with the outer edge of the sawtooth profile. The angle through which it rotates is the angle F between the rake face and the Y-axis, called the radial rake angle.

[0055] By illuminating the saw teeth with light, the saw teeth are projected onto the display screen 13. The saw tooth angle is measured by measuring the angle of the saw tooth profile on the display screen 13. The saw tooth angle is measured without direct contact with the circular saw blade 9 during the measurement process, thus avoiding the risk of scratches and chipping of the blade. Moreover, the saw tooth angle measurement is highly efficient and accurate.

[0056] Example 4: A circular saw blade tooth angle measuring device (see...) Figure 8 The system includes a body 1, on which a slidably mounted loading seat 2 is installed. A circular saw blade 9 is rotatably mounted on the loading seat 2. A slide rail 3 corresponding to the loading seat 2 is installed on the body 1, with the slide rail 3 extending forward and backward along its length. A slide block 4 is slidably connected to the slide rail 3, and the loading seat 2 is securely connected to the slide block 4. The slide block 4 slides forward and backward along the slide rail 3, ensuring the smooth sliding of the loading seat 2. A trapezoidal groove 5 is provided on the slide rail 3, and a sliding head 6 adapted to the groove 5 is provided on the slide block 4, slidably connected to the groove 5. A connecting post 7 is provided on the loading seat 2, with a threaded locking sleeve 8 connected to the connecting post 7. The center hole on the circular saw blade 9 is movably connected to the connecting post 7, and the locking sleeve 8 abuts against the surface of the circular saw blade 9 to position the circular saw blade 9. When the diameter of the center hole on the circular saw blade 9 is larger than the outer diameter of the connecting post 7, a positioning sleeve is first fitted on the connecting post 7. The inner diameter of the positioning sleeve is adapted to the connecting post 7, and the outer diameter of the positioning sleeve is adapted to the center hole on the circular saw blade 9, thereby ensuring the stable installation of the circular saw blade 9.

[0057] The slide rail 3 is mounted on the machine body 1. A screw and a guide rod are installed on the slide rail 3, both of which are movably inserted into the machine body 1. A lifting sleeve 10 is rotatably connected to the machine body 1, and the lifting sleeve 10 is threadedly connected to the screw. The rotation of the lifting sleeve 10 drives the screw to move up and down, thereby realizing the lifting and lowering movement of the slide rail 3. A limiting groove 11 is provided on the machine body 1, and the lifting sleeve 10 is installed in the limiting groove 11 to achieve upper and lower limits. Several actuating heads are circumferentially spaced on the outer wall of the lifting sleeve 10. By actuating the lifting sleeve 10, the lifting sleeve 10 is rotated, thereby realizing the lifting and lowering movement of the slide rail 3. The slide rail 3 can be raised and lowered, allowing the circular saw blade 9 mounted on the loading seat 2 to be raised and lowered to adjust its height, thereby adjusting the size of the saw tooth profile projected on the display screen 13, which helps to improve the accuracy of saw tooth angle measurement.

[0058] A light source 12 and a display screen 13 are mounted on the machine body 1. The light source 12 is located at the lower part of the machine body 1 and faces upwards. After the light source 12 illuminates the saw teeth of the circular saw blade 9, the light is projected onto the display screen 13 to form the outline of the saw teeth. A measuring disk 14, which is rotatably mounted on the machine body 1 and fits against the display screen 13, is circular in shape. Several measuring lines 15 extending radially outward from the center of the measuring disk 14 are provided on the measuring disk 14. An angle scale line 16 is set around the outer surface of the measuring disk 14. The angle scale line 16 is set on the outer surface of the machine body 1. The setting of the angle scale line 16 facilitates accurate reading of the angle rotated by the measuring disk 14.

[0059] A gear ring 17 is provided on the measuring disc 14, and a drive gear 18 is installed on the machine body 1. The drive gear 18 meshes with the gear ring 17 for transmission. The drive gear 18 is connected to an adjusting handle 19. Rotating the adjusting handle 19 causes the drive gear 18 to rotate, and through the meshing of the drive gear 18 with the gear ring 17, the measuring disc 14 is driven to rotate, making operation convenient. A protective ring 20 is provided on the edge of the measuring disc 14, and a locking screw 21 is connected to the protective ring 20. The end of the locking screw 21 abuts against the machine body 1 to position the measuring disc 14. A recessed hole 22 is provided on the machine body 1, and a positioning protrusion ring 23 is provided on the inner wall of the recessed hole 22. The measuring disc 14 is rotatably installed in the recessed hole 22, and the protective ring 20 is supported on the positioning protrusion ring 23. A positioning plate is connected to the inner side of the measuring disc 14, and the positioning plate presses against the display screen 13, thereby achieving axial positioning of the measuring disc 14.

[0060] A longitudinal shift seat 24, corresponding to the measuring disk 14, is mounted on the machine body 1. The longitudinal shift seat 24 is longitudinally movably mounted on the machine body 1. A transverse shift seat 25, which moves laterally, is mounted on the longitudinal shift seat 24. The measuring disk 14 is rotatably mounted on the transverse shift seat 25. A longitudinal shift screw and a longitudinal shift guide rod are mounted on the machine body 1. Both the longitudinal shift screw and the longitudinal shift guide rod are movably inserted into the longitudinal shift seat 24. The longitudinal shift screw is threaded into the longitudinal shift seat 24 and is connected to a longitudinal shift knob. Rotation of the longitudinal shift screw drives the longitudinal shift seat 24 to move longitudinally. A transverse shift screw and a transverse shift guide rod are mounted on the longitudinal shift seat 24. Both the transverse shift screw and the transverse shift guide rod are movably inserted into the transverse shift seat 25. The transverse shift screw is threaded into the transverse shift seat 25 and is connected to a transverse shift knob. Rotation of the transverse shift screw drives the transverse shift seat 25 to move laterally.

[0061] The drive gear 18 is mounted on the transverse base 25 of the body 1, the end of the locking screw 21 abuts against the transverse base 25 of the body 1, and the countersunk hole 22 is provided on the transverse base 25.

[0062] The longitudinal and transverse shift seats 24 and 25 enable the measuring disk 14 to move laterally and longitudinally, thereby achieving fine-tuning of the measuring disk 14. After the sawtooth is projected onto the display screen 13, the tip of the sawtooth is not necessarily at the center of the measuring disk 14. At this time, by fine-tuning the measuring disk 14, the center of the measuring disk 14 is made to overlap with the tip of the sawtooth, which facilitates subsequent measurement of the sawtooth angle.

[0063] An inclined reflective surface 26 is installed inside the body 1. Light from the light source 12 shines onto the reflective surface 26 and is then reflected onto the display screen 13. The reflective surface 26 is a mirror, located on the upper part of the body 1, and is inclined at 45 degrees. The display screen 13 is vertically mounted on the front side of the body 1. The inclined reflective surface 26 on the body 1 reflects light, allowing the display screen 13, mounted on the front side of the body 1, to project onto the sawtooth pattern, facilitating measurement operations. A focusing lens 27 is installed on the body 1, with the light source 12 facing the focusing lens 27, which is positioned between the light source 12 and the reflective surface 26. The focusing lens 27 facilitates focusing operations, allowing adjustment of the size of the sawtooth outline projected onto the display screen 13, thus facilitating measurement operations.

[0064] A method for measuring the saw tooth angle of a circular saw blade 9, using a circular saw tooth angle measuring device, includes the following steps: S1, loading the circular saw blade 9 onto a loading seat 2, then sliding the loading seat 2 inward so that the edge of the circular saw blade 9 is close to the light source 12; S2, the light from the light source 12 illuminates the saw teeth of the circular saw blade 9, and the light is projected onto a display screen 13 to form a saw tooth profile; S3, rotating the circular saw blade 9 and moving it in conjunction with the loading seat 2 so that the tip of the saw tooth profile is at the center of the measuring disk 14; S4, rotating the measuring disk 14 so that the measuring line 15 coincides with the outer edge and the side edge of the saw tooth profile, respectively, and recording the angles F and E rotated. Figure 5 As shown, the vertical measuring line 15 rotates until it coincides with the side edge of the sawtooth profile. The angle through which it rotates is the angle E between the rake face and the X-axis, called the radial rake angle. The horizontal measuring line 15 rotates until it coincides with the outer edge of the sawtooth profile. The angle through which it rotates is the angle F between the rake face and the Y-axis, called the radial rake angle.

[0065] By illuminating the saw teeth with light, the saw teeth are projected onto the display screen 13. The saw tooth angle is measured by measuring the angle of the saw tooth profile on the display screen 13. The saw tooth angle is measured without direct contact with the circular saw blade 9 during the measurement process, thus avoiding the risk of scratches and chipping of the blade. Moreover, the saw tooth angle measurement is highly efficient and accurate.

[0066] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A device for measuring the angle of saw teeth on a circular saw blade, characterized in that, The system includes a machine body with a sliding loading seat mounted on it. A circular saw blade is rotatably mounted on the loading seat. A light source and a display screen are mounted on the machine body. The light source illuminates the saw teeth of the circular saw blade, and the light is projected onto the display screen to form the outline of the saw teeth. A measuring disc is rotatably mounted on the machine body and is attached to the display screen. Several measuring lines extending radially outward from the center are set on the measuring disc.

2. The circular saw blade tooth angle measuring device according to claim 1, characterized in that, The machine body is equipped with a slide rail corresponding to the loading seat, and a slide block is slidably connected to the slide rail. The loading seat is securely connected to the slide block.

3. The circular saw blade tooth angle measuring device according to claim 2, characterized in that, The sliding rail lifting mechanism is mounted on the machine body.

4. The circular saw blade tooth angle measuring device according to claim 2, characterized in that, The slide rail is provided with a trapezoidal groove, and the slide block is provided with a sliding head that matches the groove. The sliding head is slidably connected to the groove.

5. The circular saw blade tooth angle measuring device according to claim 1, characterized in that, A gear ring is set on the measuring plate, and a drive gear is installed on the machine body. The drive gear meshes with the gear ring for transmission, and the drive gear is connected to the adjusting handle.

6. The circular saw blade tooth angle measuring device according to claim 1, characterized in that, An angle scale is set around the perimeter of the measuring dial, and the angle scale is set on the outer surface of the machine body.

7. The circular saw blade tooth angle measuring device according to claim 1, characterized in that, An inclined reflective surface is installed inside the machine. The light source shines on the reflective surface and then reflects onto the display screen.

8. The circular saw blade tooth angle measuring device according to claim 1, characterized in that, A focusing lens is mounted on the camera body, and the light source is positioned towards the focusing lens.

9. A circular saw blade tooth angle measuring device according to any one of claims 1 to 8, characterized in that, The machine body is equipped with a longitudinal shift seat corresponding to the measuring plate. The longitudinal shift seat is mounted on the machine body and moves longitudinally. A transverse shift seat is mounted on the longitudinal shift seat and moves laterally. The measuring plate is rotated and mounted on the transverse shift seat.

10. A method for measuring the saw tooth angle of a circular saw blade, characterized in that, The measurement is performed using the circular saw blade tooth angle measuring device according to any one of claims 1 to 9, comprising the following steps: S1, loading the circular saw blade onto the loading seat; S2, after the light source shines on the circular saw blade teeth, the light is projected onto the display screen to form the tooth profile; S3, rotating the circular saw blade and moving it in conjunction with the loading seat so that the tip of the tooth profile is at the center of the measuring disc; S4, rotating the measuring disc so that the measuring line coincides with the outer edge and the side edge of the tooth profile, respectively, and recording the angles F and E that have been rotated.

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