Saw blade detection device and method

Abstract

The invention discloses a saw blade detection device and method, and aims to solve the problem that the working efficiency is low due to the fact that only end face run-out or radial circle run-out of a saw blade body can be measured at a time during saw blade detection. The device comprises a base and a rotating shaft capable of automatically operating, a fixed chuck and a movable chuck are mounted on the rotating shaft, a saw blade is clamped between the fixed chuck and the movable chuck, a detector capable of adjusting postures is mounted on the base, a detection feeler lever is arranged on the detector, and the detection feeler lever is in contact with the surface of the saw blade for detection. According to the saw blade detection device, the end face run-out of the saw blade body, the side face run-out of the tool bit and the tip circle run-out of the tool bit can be detected at the same time through one device, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of saw blades, and more specifically, it relates to a saw blade detection device and method. Background Art

[0002] A saw blade is a common material cutting tool. During the processing of the saw blade, it is necessary to detect the machining accuracy of the surface of the saw blade body and the surface of the cutting head to ensure that the produced products meet the requirements. The currently common detection method is to measure in a non-locking manner. The saw blade is rotated manually, and there are errors in the detection process. Moreover, only the end face runout or the radial circular runout of the saw blade body can be measured at a time, and the work efficiency is low. Chinese Patent Application No. 201711225726.5 discloses an electric saw blade detection mechanism, which is provided with a left transmission device on the frame for transmitting the saw blade to be detected, a right transmission device for transmitting the detected saw blade, a detection component for photographing and detecting the saw blade, and a manipulator component for clamping the saw blade to the bearing table or removing it from the bearing table. Whether the saw blade is qualified is judged by photographing and detecting the saw blade, and the detection of the end face runout or the radial circular runout of the saw blade body cannot be realized. Summary of the Invention

[0003] In order to overcome the above deficiencies, the present invention provides a saw blade detection device and method, which can simultaneously detect the end face runout of the saw blade body, the side face runout of the cutting head, and the tip circular runout of the cutting head with one device.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: A saw blade detection device includes a base and a rotating shaft that can automatically operate. A fixed chuck and a movable chuck are installed on the rotating shaft, and the saw blade is clamped between the fixed chuck and the movable chuck. A detector that can adjust its posture is installed on the base, and a detection touch rod is arranged on the detector, and the detection touch rod contacts the surface of the saw blade for detection.

[0005] During the saw blade detection operation, the saw blade is installed between the fixed chuck and the movable chuck, and then the detector is installed in place. The position of the detector is adjusted so that the end parts of the detection touch rods of the three detectors respectively contact the end face of the saw blade body, the side face of the cutting head, and the tip of the cutting head. The rotating shaft rotates, and the detector realizes the detection of the end face circular runout of the saw blade body, the side face circular runout of the cutting head, and the tip circular runout of the cutting head through the detection touch rod. The detection data can be directly read by the detector to judge whether the saw blade meets the quality requirements; or the detector transmits the detection data to the controller for analysis and simulation, and the controller directly judges whether the saw blade meets the quality requirements.

[0006] The saw blade detection device of this patent application can simultaneously detect the end face runout of the saw blade body, the side face runout of the cutting head, and the tip circular runout of the cutting head with one device, greatly improving the work efficiency.

[0007] Preferably, a positioning post is provided on the rotating shaft. The movable chuck is threadedly connected and fastened to the positioning post. A centering ring is detachably connected to the positioning post. The central hole on the saw blade is fitted with the centering ring in a matching manner to achieve positioning.

[0008] The saw blades have various size specifications, and the sizes of the central holes on different saw blades are different. The centering ring is detachably connected to the positioning post, and the outer diameter of the centering ring matches the central hole on the saw blade. By rotating the centering ring of the appropriate size according to the saw blades of different size specifications, it is ensured that the saw blade can be coaxial with the rotating shaft after being installed in place. The movable chuck is threadedly connected to the positioning post, and the rotation of the movable chuck can lock and unlock the saw blade, which is convenient to operate.

[0009] Preferably, a positioning cylinder is provided on the base. The rotating shaft is rotatably connected to the positioning cylinder. Both ends of the rotating shaft extend out of the positioning cylinder, and fixed chucks and movable chucks are installed at both ends of the rotating shaft.

[0010] The positioning cylinder is provided on the base, and the rotating shaft is rotatably connected to the positioning cylinder, ensuring the smooth operation of the rotating shaft. Fixed chucks and movable chucks are installed at both ends of the rotating shaft, so that saw blades can be installed at both ends of the rotating shaft for detection, which is beneficial to improving the detection efficiency.

[0011] In another solution, an extension sleeve extending outward is provided at the end of the rotating shaft. A driving member that moves movably is installed in the extension sleeve. At least three centering clamping blocks that move radially are circumferentially spaced on the fixed chuck. A connecting rod is hinged between the centering clamping block and the driving member, and the extension sleeve is connected to a locking sleeve; during the connection process of the locking sleeve and the extension sleeve, the driving member is pushed to move, so that the centering clamping block moves radially to clamp the central hole on the saw blade, and the locking sleeve pushes the movable chuck to move and clamp on the saw blade.

[0012] During the process of clamping the saw blade between the fixed chuck and the movable chuck, first, the saw blade is sleeved on the extension sleeve and close to the fixed chuck. At this time, the centering clamping block retracts into the extension sleeve. Then, the locking sleeve is connected to the extension sleeve. During the connection process, the locking sleeve pushes the driving member to move, and the driving member pushes the centering clamping block to move radially through the connecting rod, so that the centering clamping block clamps on the inner wall of the central hole of the saw blade, realizing the positioning of the saw blade and ensuring the coaxiality of the saw blade and the rotating shaft. At the same time, the locking sleeve pushes the movable chuck to move and clamp on the saw blade. The centering clamping block moves radially and clamps on the inner wall of the central hole, which can realize the clamping and positioning of central holes of different size specifications, is convenient to operate, and improves the versatility of the detection device.

[0013] Preferably, the driving member includes a pushing block and a spring seat. A top block extending out of the extension sleeve is provided on the spring seat. The locking sleeve abuts against the top block. A compression spring is installed between the pushing block and the spring seat, a tension spring is installed between the pushing block and the extension sleeve, and the connecting rod is hinged to the pushing block.

[0014] During the connection process of the locking sleeve and the extension sleeve, the locking sleeve moves closer to the fixed chuck. The locking sleeve abuts against the top block, thereby pushing the spring seat to move. The pressing force of the compression spring increases, causing the pushing block to be pushed, and then the centering chuck is pushed radially to clamp onto the inner wall of the central hole through the connecting rod. Since there are deviations in the sizes of the central holes of saw blades of different specifications, in order to ensure that the centering chuck can clamp onto the inner wall of the central hole, before the saw blade is clamped by the movable chuck, the centering chuck has already been fully clamped onto the inner wall of the central hole. Therefore, during the latter stage of the connection of the locking sleeve, the centering chuck remains stationary. A compression spring is installed between the pushing block and the spring seat, so the spring seat can always move with the locking sleeve, avoiding jamming and ensuring that the movable chuck can clamp the saw blade.

[0015] Preferably, a driving motor is installed on the base. There is a belt drive between the output shaft of the driving motor and the rotating shaft. The driving motor is electrically connected to the power distribution cabinet, and the power distribution cabinet controls the rotation direction and speed of the driving motor.

[0016] The driving motor drives the rotating shaft to operate. By controlling the speed and rotation direction through the power distribution cabinet and cooperating with the detection, the reliability and accuracy of the detection are ensured.

[0017] Preferably, a detection frame is provided on the base. The detection frame includes a support and a vertical rod. The support is installed on the base, the vertical rod is installed on the base, and a rotatable and adjustable support rod is installed on the vertical rod. The detector is installed on the support rod.

[0018] The support is installed on the base to achieve reliable support for the entire detection frame. The detector is installed on the support rod, and the attitude of the detector can be adjusted by rotating the support rod, facilitating the detection operation.

[0019] Preferably, the detector is a dial indicator or a displacement sensor.

[0020] The detection data is directly read through the dial indicator to determine whether the saw blade is qualified. The displacement sensor can transmit the data to the controller, and the controller directly determines whether the saw blade is qualified, which is accurate and reliable.

[0021] Preferably, three detectors are provided on the base. The detection probe ends of the three detectors are respectively in contact with the end face of the saw blade body, the side face of the cutting head, and the tip of the cutting head.

[0022] Three detectors are installed on the base. The three detectors respectively detect the circular runout of the end face of the saw blade body, the circular runout of the side face of the cutting head, and the circular runout of the tip of the cutting head. Three data are detected at one time, greatly improving the detection efficiency.

[0023] A saw blade detection method, which uses a saw blade detection device for detection, includes the following steps: S1, install the saw blade between the fixed chuck and the movable chuck; S2, install the detector in place, and the detection probe ends of the three detectors are respectively in contact with the end face of the saw blade body, the side face of the cutting head, and the tip of the cutting head; S3, rotate the shaft, and the detector realizes the detection of the circular runout of the end face of the saw blade body, the circular runout of the side face of the cutting head, and the circular runout of the tip of the cutting head through the detection probe.

[0024] During the saw blade detection operation, install the saw blade between the fixed chuck and the movable chuck, and then install the detector in place. Adjust the position of the detector so that the detection probe ends of the three detectors are respectively in contact with the end face of the saw blade body, the side face of the cutting head, and the tip of the cutting head. Rotate the shaft, and the detector realizes the detection of the circular runout of the end face of the saw blade body, the circular runout of the side face of the cutting head, and the circular runout of the tip of the cutting head through the detection probe. It is possible to directly judge whether the saw blade meets the quality requirements by reading the detection data through the detector; or the detector transmits the detection data to the controller for analysis and simulation, and the controller directly judges whether the saw blade meets the quality requirements.

[0025] A device can simultaneously measure the runout of the end face of the saw blade body, the runout of the side face of the cutting head, and the circular runout of the tip of the cutting head, reducing the equipment investment. A device can adapt to the detection of saw blades of various size specifications, with good versatility.

[0026] Compared with the prior art, the beneficial effects of the present invention are: (1) The saw blade detection device of this patent application can simultaneously realize the detection of the runout of the end face of the saw blade body, the runout of the side face of the cutting head, and the circular runout of the tip of the cutting head through one device, greatly improving the work efficiency and reducing the equipment investment; (2) A device can adapt to the detection of saw blades of various size specifications, with good versatility. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention.

[0028] Figure 2 It is a side view of Embodiment 1 of the present invention.

[0029] Figure 3 It is a connection diagram of the fixed chuck and the movable chuck of Embodiment 2 of the present invention.

[0030] Figure 4 It is a partial structural diagram of Embodiment 3 of the present invention.

[0031] In the figure: 1. Base, 2. Rotating shaft, 3. Support column, 4. Saw blade, 5. Positioning cylinder, 6. Boss, 7. Fixed chuck, 8. Movable chuck, 9. Driving motor, 10. Connecting plate, 11. Protective cover, 12. Power distribution cabinet, 13. Detector, 14. Detection contact rod, 15. Driven wheel, 16. Vertical rod, 17. Support rod, 18. Clamping seat, 19. Contact, 20. Positioning column, 21. Centering ring, 22. Extension sleeve, 23. Centering clamping block, 24. Chute, 25. Link rod, 26. Locking sleeve, 27. Pushing block, 28. Spring seat, 29. Top block, 30. Compression spring, 31. Tension spring, 32. Avoidance groove, 33. Limit protrusion, 34. Positioning protrusion, 35. Deviation correction sleeve, 36. Slide rail, 37. Deviation correction clamping plate, 38. Extension plate. Detailed implementation manners

[0032] The technical solution of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings: Embodiment 1: A saw blade detection device (see Figure 1 , Figure 2 ), including a base 1 and a rotatable rotating shaft 2 that can operate automatically. Four support columns 3 are installed on the base 1 to raise the entire device and reserve a height space for installing the saw blade 4 on the rotating shaft 2. At the same time, the area between the four support columns 3 is an empty area, which can be used to place various detection equipment and tools. The base 1 is supported on the support columns 3 and serves as the support platform of the entire device. The support columns 3 and the base 1 are fixedly connected by screws. A positioning cylinder 5 and a boss 6 are provided on the base 1. The positioning cylinder 5 is arranged on the boss 6. The rotating shaft 2 is rotatably connected to the positioning cylinder 5. Both ends of the rotating shaft 2 extend out of the positioning cylinder 5, and fixed chucks 7 and movable chucks 8 are installed at both ends of the rotating shaft 2.

[0033] A driving motor 9 is installed on the base 1. A connecting plate 10 is provided on the base 1. The driving motor 9 is installed on the connecting plate 10. The connecting plate 10 and the base 1 are fixedly connected by screws. The output shaft of the driving motor 9 and the rotating shaft 2 are belt-driven. A driving wheel is installed on the output shaft of the driving motor 9, and a driven wheel 15 is installed on the rotating shaft 2. A transmission belt is connected between the driving wheel and the driven wheel 15. A protective cover 11 is installed outside the transmission belt to isolate the direct contact between the conveyor belt and the outside world and ensure the safety of the working environment. The protective cover 11 is installed on the base 1. The settings of the boss 6 and the connecting plate 10 can raise the positioning cylinder 5 and the driving motor 9, reserve space for the installation of other components, and at the same time increase the weight of the entire device, making the detection process instrument more stable.

[0034] The drive motor 9 is electrically connected to the power distribution cabinet 12, and the power distribution cabinet 12 controls the rotation direction and speed of the drive motor 9. A power switch, a speed adjustment knob, a rotation switch, and a forward / reverse switch are provided on the power distribution cabinet 12. The power switch is used to start and stop the drive motor 9. The speed adjustment knob is used to adjust the rotation speed of the saw blade 4, and an appropriate low speed can avoid the occurrence of breakage of the tool tip. According to the orientation of the tool tip installation, the rotation direction of the saw blade 4 is adjusted through the forward / reverse switch, thereby protecting the tool head from the hard collision between the tool tip and the detection head due to reverse rotation, resulting in the loss of the tool tip.

[0035] A fixed chuck 7 and a movable chuck 8 are installed on the rotating shaft 2. The fixed chuck 7 is fixedly connected to the rotating shaft 2, and the movable chuck 8 can move. The saw blade 4 is clamped between the fixed chuck 7 and the movable chuck 8. A detector 13 capable of adjusting the posture is installed on the base 1. A detection contact rod 14 is provided on the detector 13, and the detection contact rod 14 contacts the surface of the saw blade 4 for detection.

[0036] A detection frame is provided on the base 1. The detection frame includes a support and a vertical rod 16. The support is installed on the base 1, and an electromagnet is installed on the support. After being energized, it has strong magnetism, so that the support is attracted and positioned on the base 1. The vertical rod 16 is installed on the base 1, and a support rod 17 capable of rotating and adjusting is installed on the vertical rod 16. The detector 13 is installed on the support rod 17. A plurality of support rods 17 are provided. The connection between the vertical rod 16 and the support rod 17 and between adjacent support rods 17 is realized through a clamp seat 18. The clamp seat 18 is provided with a U-shaped chuck and an insertion hole. The U-shaped chuck is connected to the support rod 17 or the vertical rod 16 and is locked and positioned by screws. The insertion hole is inserted and connected to the support rod 17.

[0037] Three detectors 13 are provided on the base 1. The end parts of the detection contact rods 14 of the three detectors 13 are respectively in contact with the end face of the saw blade 4 body, the side face of the tool head, and the tip of the tool head. A contact head 19 is provided at the end of the detection contact rod 14, and the contact head 19 is in a conical structure or a cylindrical structure. The conical contact head 19 contacts the end face of the saw blade 4 body and is used to detect the circular runout of the end face of the saw blade 4 body. The detection contact rod 14 corresponding to the conical contact head 19 is parallel to the rotating shaft 2. The cylindrical contact head 19 contacts the side face or the tip of the tool head and is used to detect the circular runout of the side face of the tool head or the circular runout of the tip of the tool head. The detection contact rod 14 in contact with the side face of the tool head is parallel to the rotating shaft 2. The detection contact rod 14 in contact with the tip of the tool head is arranged radially towards the saw blade 4. The distance between adjacent two tool heads < the end face diameter of the cylindrical contact head 19 < the distance between three tool heads.

[0038] The detector 13 is a dial indicator or a displacement sensor. The detection data is directly read through the dial indicator to determine whether the saw blade 4 is qualified. The displacement sensor can transmit the data to the controller, and the controller directly determines whether the saw blade 4 is qualified, which is accurate and reliable.

[0039] A positioning post 20 is provided on the rotating shaft 2. The movable chuck 8 is threadedly connected and fastened to the positioning post 20. A centering ring 21 is detachably connected to the positioning post 20. The central hole on the saw blade 4 is fitted with the centering ring 21 in a matching manner to achieve positioning. The saw blades 4 have various size specifications, and the sizes of the central holes on different saw blades 4 are different. The centering ring 21 is detachably connected to the positioning post 20, and the outer diameter of the centering ring 21 matches the central hole on the saw blade 4. By rotating the centering ring 21 of the appropriate size according to the saw blades 4 of different size specifications, it is ensured that the saw blade 4 can be coaxial with the rotating shaft 2 after being installed in place. The movable chuck 8 is threadedly connected to the positioning post 20. Rotating the movable chuck 8 can lock and unlock the saw blade 4, and the operation is convenient.

[0040] A method for detecting a saw blade, which is detected by a saw blade detection device, includes the following steps: S1, installing the saw blade 4 between the fixed chuck 7 and the movable chuck 8; first, fitting the centering ring 21 adapted to the central hole of the saw blade 4 onto the positioning post 20, then fitting the central hole of the saw blade 4 with the centering ring 21, and then threadedly connecting the movable chuck 8 to the connecting post, so that the saw blade 4 is reliably clamped between the fixed chuck 7 and the movable chuck 8.

[0041] S2, installing the detector 13 in place. The detector 13 is installed on the detection frame, and the detector 13 is adjusted in place. The cylindrical contact 19 contacts the side surface or the tip of the cutting head to detect the circular runout of the side surface of the cutting head or the circular runout of the tip of the cutting head. The detection contact rod 14 in contact with the side surface of the cutting head is parallel to the rotating shaft 2. The end parts of the detection contact rods 14 of the three detectors 13 respectively contact the end face of the saw blade 4 body, the side surface of the cutting head, and the tip of the cutting head.

[0042] S3, controlling the driving motor 9 to operate through the power distribution cabinet 12, so that the rotating shaft 2 rotates. The detector 13 realizes the detection of the circular runout of the end face of the saw blade 4 body, the circular runout of the side surface of the cutting head, and the circular runout of the tip of the cutting head through the detection contact rod 14.

[0043] During the detection operation of the saw blade 4, the saw blade 4 is installed between the fixed chuck 7 and the movable chuck 8, and then the detector 13 is installed in place. The position of the detector 13 is adjusted so that the end parts of the detection contact rods 14 of the three detectors 13 respectively contact the end face of the saw blade 4 body, the side surface of the cutting head, and the tip of the cutting head. The rotating shaft 2 rotates, and the detector 13 realizes the detection of the circular runout of the end face of the saw blade 4 body, the circular runout of the side surface of the cutting head, and the circular runout of the tip of the cutting head through the detection contact rod 14. It is possible to directly read the detection data through the detector 13 to determine whether the saw blade 4 meets the quality requirements; or the detector 13 transmits the detection data to the controller for analysis and simulation, and the controller directly determines whether the saw blade 4 meets the quality requirements.

[0044] A device can simultaneously measure the end face runout of the saw blade 4 body, the side runout of the cutting head, and the circular runout of the cutting head tip, reducing equipment investment. One device can adapt to the detection of saw blades 4 of various size specifications, with good versatility.

[0045] Embodiment 2: A saw blade detection device (see Figure 1 , Figure 3 ), including a base 1 and a rotating shaft 2 that can operate automatically. Four support columns 3 are installed on the base 1 to raise the entire device and reserve a height space for the installation of the saw blade 4 on the rotating shaft 2. At the same time, the area between the four support columns 3 is an empty area, which can be used to place various types of equipment and tools for detection. The base 1 is supported on the support columns 3 and serves as the support platform for the entire device. The support columns 3 and the base 1 are fixedly connected by screws. A positioning cylinder 5 and a boss 6 are provided on the base 1. The positioning cylinder 5 is arranged on the boss 6. The rotating shaft 2 is rotatably connected to the positioning cylinder 5. Both ends of the rotating shaft 2 extend out of the positioning cylinder 5, and fixed chucks 7 and movable chucks 8 are installed at both ends of the rotating shaft 2.

[0046] A driving motor 9 is installed on the base 1. A connecting plate 10 is provided on the base 1. The driving motor 9 is installed on the connecting plate 10. The connecting plate 10 and the base 1 are fixedly connected by screws. The output shaft of the driving motor 9 and the rotating shaft 2 are belt-driven. A driving pulley is installed on the output shaft of the driving motor 9, and a driven pulley 15 is installed on the rotating shaft 2. A transmission belt is connected between the driving pulley and the driven pulley 15. A protective cover 11 is installed on the periphery of the transmission belt to isolate the direct contact between the conveyor belt and the outside world and ensure the safety of the working environment. The protective cover 11 is installed on the base 1. The settings of the boss 6 and the connecting plate 10 can raise the positioning cylinder 5 and the driving motor 9, reserve space for the installation of other components, and at the same time increase the weight of the entire device, making the instrument more stable during the detection process.

[0047] The driving motor 9 is electrically connected to the power distribution cabinet 12, and the power distribution cabinet 12 controls the rotation direction and speed of the driving motor 9. A power switch, a speed adjustment knob, a rotation switch, and a forward and reverse switch are provided on the power distribution cabinet 12. The power switch is used to start and stop the driving motor 9. The speed adjustment knob is used to adjust the rotation speed of the saw blade 4. An appropriate low speed can avoid the occurrence of tip breakage defects. According to the orientation of the tip installation, the rotation direction of the saw blade 4 is adjusted through the forward and reverse switch, thereby protecting the cutting head from the tip colliding hard with the detection head due to reverse rotation and causing the tip to fall off.

[0048] Fixed chucks 7 and movable chucks 8 are installed on the rotating shaft 2. The fixed chuck 7 is fixedly connected to the rotating shaft 2, and the movable chuck 8 can move. The saw blade 4 is clamped between the fixed chuck 7 and the movable chuck 8. A detector 13 that can adjust its posture is installed on the base 1. A detection probe 14 is provided on the detector 13, and the detection probe 14 contacts the surface of the saw blade 4 for detection.

[0049] A detection frame is arranged on the base 1. The detection frame includes a support and a vertical rod 16. The support is installed on the base 1, and an electromagnet is installed on the support. After being powered on, it has strong magnetism, so that the support is attracted and positioned on the base 1. The vertical rod 16 is installed on the base 1, and a rotatable and adjustable support rod 17 is installed on the vertical rod 16. The detector 13 is installed on the support rod 17. A number of support rods 17 are provided. The connection between the vertical rod 16 and the support rods 17 and between adjacent support rods 17 is achieved through a clamping seat 18. The clamping seat 18 is provided with a U-shaped chuck and an insertion hole. The U-shaped chuck is connected to the support rod 17 or the vertical rod 16 and is locked and positioned by screws. The insertion hole is inserted and connected to the support rod 17.

[0050] Three detectors 13 are arranged on the base 1. The end parts of the detection contact rods 14 of the three detectors 13 are respectively in contact with the end face of the saw blade 4 body, the side face of the cutter head, and the tip of the cutter head. The end of the detection contact rod 14 is provided with a contact head 19, and the contact head 19 is in a conical structure or a cylindrical structure. The conical contact head 19 is in contact with the end face of the saw blade 4 body for detecting the circular runout of the end face of the saw blade 4 body. The detection contact rod 14 corresponding to the conical contact head 19 is parallel to the rotating shaft 2. The cylindrical contact head 19 is in contact with the side face or the tip of the cutter head for detecting the circular runout of the side face of the cutter head or the circular runout of the tip of the cutter head. The detection contact rod 14 in contact with the side face of the cutter head is parallel to the rotating shaft 2. The detection contact rod 14 in contact with the tip of the cutter head is arranged radially towards the saw blade 4. The distance between adjacent two cutter heads < the end face diameter of the cylindrical contact head 19 < the distance between the three cutter heads.

[0051] The detector 13 is a dial indicator or a displacement sensor. The detection data is directly read through the dial indicator to judge whether the saw blade 4 is qualified. The displacement sensor can transmit the data to the controller, and the controller directly judges whether the saw blade 4 is qualified, which is accurate and reliable.

[0052] An extension sleeve 22 extending outwards is arranged at the end of the rotating shaft 2. The extension sleeve 22 is coaxially arranged with the rotating shaft 2. A driving part arranged to move is installed in the extension sleeve 22. At least three centering clamping blocks 23 moving radially are circumferentially spaced on the fixed chuck 7. A sliding groove 24 corresponding to the centering clamping blocks 23 is arranged on the fixed chuck 7. The cross section of the sliding groove 24 is in a T-shaped structure. One end of the centering clamping block 23 is provided with a T-shaped connecting part, and the connecting part is slidably connected to the sliding groove 24. Three through grooves corresponding to the centering clamping blocks 23 are arranged on the extension sleeve 22. In the initial state, the centering clamping blocks 23 retract into the extension sleeve 22 through the through grooves. A connecting rod 25 is hinged between the centering clamping blocks 23 and the driving part. The connecting rod 25 is obliquely arranged, and the extension sleeve 22 is connected to a locking sleeve 26; the locking sleeve 26 is threadedly connected to the outer wall of the extension sleeve 22. During the connection between the locking sleeve 26 and the extension sleeve 22, the driving part is pushed to move, so that the centering clamping blocks 23 move radially to clamp the central hole on the saw blade 4, and the locking sleeve 26 pushes the movable chuck 8 to move and clamp on the saw blade 4.

[0053] The driving member includes a pushing block 27 and a spring seat 28. A top block 29 extending out of the extension sleeve 22 is provided on the spring seat 28. The locking sleeve 26 abuts against the top block 29. A compression spring 30 is installed between the pushing block 27 and the spring seat 28, and a tension spring 31 is installed between the pushing block 27 and the extension sleeve 22. The connecting rod 25 is hinged to the pushing block 27. An avoidance groove 32 is correspondingly provided on the extension sleeve 22 and the top block 29. The top block 29 passes through the avoidance groove 32. A stepped surface is provided on the inner wall of the locking sleeve 26, and the top block 29 abuts against the stepped surface. The movable chuck 8 is installed at the end of the locking sleeve 26. Limiting protrusions 33 and positioning protrusions 34 are provided on the inner wall of the extension sleeve 22. The compression spring 30 abuts against the limiting protrusions 33, and the tension spring 31 is fixedly connected to the positioning protrusions 34.

[0054] During the process of clamping the saw blade 4 to the fixed chuck 7 and the movable chuck 8, first, the saw blade 4 is sleeved on the extension sleeve 22 and close to the fixed chuck 7. At this time, the centering chuck 23 retracts into the extension sleeve 22. Then, the locking sleeve 26 is connected to the extension sleeve 22. During the connection process, the locking sleeve 26 pushes the driving member to move. The driving member pushes the centering chuck 23 to move radially through the connecting rod 25, so that the centering chuck 23 clamps on the inner wall of the central hole of the saw blade 4, realizing the positioning of the saw blade 4 and ensuring the coaxiality of the saw blade 4 and the rotating shaft 2. At the same time, the locking sleeve 26 pushes the movable chuck 8 to move and clamp on the saw blade 4. The centering chuck 23 moves radially and clamps on the inner wall of the central hole, which can realize the clamping and positioning of central holes of different sizes and specifications, is convenient to operate, and improves the versatility of the detection device.

[0055] During the connection process of the locking sleeve 26 and the extension sleeve 22, the locking sleeve 26 approaches the fixed chuck 7. The locking sleeve 26 abuts against the top block 29, thereby pushing the spring seat 28 to move. The pressing force of the compression spring 30 increases, so that the pushing block 27 is pushed, and then the centering chuck 23 is pushed to move radially and clamp on the inner wall of the central hole through the connecting rod 25. Since there are deviations in the sizes of the central holes of saw blades 4 of different specifications, in order to ensure that the centering chuck 23 can clamp on the inner wall of the central hole, before the saw blade 4 is clamped by the movable chuck 8, the centering chuck 23 has been completely clamped on the inner wall of the central hole. Therefore, in the latter stage of the connection of the locking sleeve 26, the centering chuck 23 is stationary. A compression spring 30 is installed between the pushing block 27 and the spring seat 28. Therefore, the spring seat 28 can always move with the locking sleeve 26, avoiding jamming phenomena and ensuring that the movable chuck 8 can clamp the saw blade 4.

[0056] A saw blade detection method, which uses a saw blade detection device for detection, includes the following steps: S1, install the saw blade 4 between the fixed chuck 7 and the movable chuck 8; first, put the saw blade 4 on the extension sleeve 22 and close to the fixed chuck 7. At this time, the centering chuck 23 retracts into the extension sleeve 22, and then thread the locking sleeve 26 onto the extension sleeve 22. During the connection process, the locking sleeve 26 pushes the driving part to move, and the driving part pushes the centering chuck 23 to move radially through the connecting rod 25, so that the centering chuck 23 clamps on the inner wall of the central hole of the saw blade 4, realizing the positioning of the saw blade 4 and ensuring the coaxiality of the saw blade 4 and the rotating shaft 2. At the same time, the locking sleeve 26 pushes the movable chuck 8 to move and clamp on the saw blade 4.

[0057] S2, install the detector 13 in place. The detector 13 is installed on the detection frame and adjusted in place. The cylindrical contact 19 contacts the side or the tip of the cutter head for detecting the circular runout of the side of the cutter head or the tip of the cutter head. The detection contact rod 14 in contact with the side of the cutter head is parallel to the rotating shaft 2. The end parts of the detection contact rods 14 of the three detectors 13 respectively contact the end face of the saw blade 4 body, the side of the cutter head, and the tip of the cutter head.

[0058] S3, control the driving motor 9 to run through the power distribution cabinet 12, so that the rotating shaft 2 rotates, and the detector 13 realizes the detection of the circular runout of the end face of the saw blade 4 body, the circular runout of the side of the cutter head, and the circular runout of the tip of the cutter head through the detection contact rod 14.

[0059] During the detection operation of the saw blade 4, install the saw blade 4 between the fixed chuck 7 and the movable chuck 8, then install the detector 13 in place, and adjust the position of the detector 13 so that the end parts of the detection contact rods 14 of the three detectors 13 respectively contact the end face of the saw blade 4 body, the side of the cutter head, and the tip of the cutter head. The rotating shaft 2 rotates, and the detector 13 realizes the detection of the circular runout of the end face of the saw blade 4 body, the circular runout of the side of the cutter head, and the circular runout of the tip of the cutter head through the detection contact rod 14. It is possible to directly judge whether the saw blade 4 meets the quality requirements by reading the detection data through the detector 13; or the detector 13 transmits the detection data to the controller for analysis and simulation, and directly judges whether the saw blade 4 meets the quality requirements through the controller.

[0060] A device can simultaneously measure the runout of the end face of the saw blade 4 body, the runout of the side of the cutter head, and the circular runout of the tip of the cutter head, reducing the equipment investment. A device can adapt to the detection of saw blades 4 of various size specifications, with good versatility.

[0061] Example 3: A saw blade detection device (see Figure 4),(its structure is similar to that of Embodiment 2. The main difference is that in this embodiment, a deviation correction sleeve 35 is slidably sleeved on the detector 13, a slide rail 36 is installed on the base 1, and two deviation correction clamping plates 37 are slidably installed on the slide rail 36. An extension plate 38 is provided on the deviation correction sleeve 35, and the extension plate 38 is placed between the two deviation correction clamping plates 37. The two deviation correction clamping plates 37 are firmly connected together to correct the deviation of the detector 13, so that the detection touch rod 14 is parallel to the rotating shaft 2. The deviation correction sleeve 35 is coaxially arranged with the detection touch rod 14. Both side surfaces of the extension plate 38 are perpendicular to the axis of the rotating shaft 2. The slide rail 36 is parallel to the rotating shaft 2. The sliding direction of the deviation correction clamping plate 37 is parallel to the axis of the rotating shaft 2. The extension plate 38 is placed on the slide rail 36, and the two deviation correction clamping plates 37 are firmly connected by screws. Through this structural arrangement, it is ensured that the detection touch rod 14 is parallel to the rotating shaft 2, thereby guaranteeing the accuracy of the detection data. Other structures are the same as those in Embodiment 2.

[0062] The above-described embodiments are only preferred solutions of the present invention and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A saw blade detection device, characterized in that: It includes a base and a rotating shaft that can rotate automatically. A fixed chuck and a movable chuck are installed on the rotating shaft. A saw blade is clamped between the fixed chuck and the movable chuck. A detector that can adjust its posture is installed on the base. A detection feeler rod is set on the detector. The detection feeler rod contacts the surface of the saw blade for detection.

2. A saw blade detection device according to claim 1, characterized in that the rotating shaft A positioning column is arranged on the top, the movable chuck and the positioning column are threadedly connected and fastened, a centering ring is detachably connected to the positioning column, and the center hole on the saw blade is matched with the centering ring to realize positioning.

3. A saw blade detection device according to claim 1, characterized in that: A positioning cylinder is arranged on the base, the rotating shaft is rotatably connected with the positioning cylinder, the positioning cylinders are extended from both ends of the rotating shaft, and a fixed chuck and a movable chuck are installed on both ends of the rotating shaft.

4. A saw blade detection device according to claim 1, characterized in that the rotating shaft An outwardly extending extension sleeve is provided at the end, and a movable driving member is installed in the extension sleeve. At least three radially movable centering blocks are circumferentially spaced on the fixed chuck, and a connecting rod is hinged between the centering block and the driving member. The extension sleeve is connected to the locking sleeve. During the connection process between the locking sleeve and the extension sleeve, the driving member is pushed to move, so that the centering block moves radially to clamp the center hole on the saw blade, and the locking sleeve pushes the movable chuck to move and clamp it on the saw blade.

5. A saw blade detection device according to claim 4, characterized in that: The driving member includes a pushing block and a spring seat, a top block extending out of an extension sleeve is arranged on the spring seat, a locking sleeve abuts against the top block, a compression spring is installed between the pushing block and the spring seat, a tension spring is installed between the pushing block and the extension sleeve, and the connecting rod is hinged to the pushing block.

6. A saw blade detection device according to claim 1, characterized in that: A driving motor is installed on the base, a belt transmission is provided between the output shaft of the driving motor and the rotating shaft, the driving motor is electrically connected to a distribution cabinet, and the distribution cabinet controls the rotation direction and speed of the driving motor.

7. A saw blade detection device according to claim 1, characterized in that: A detection frame is arranged on the base, and the detection frame comprises a support and a vertical pole. The support is mounted on the base, the vertical pole is mounted on the base, a support rod capable of rotation and adjustment is mounted on the vertical pole, and the detector is mounted on the support rod.

8. The saw blade detection device according to claim 1, characterized in that: The detector is a dial indicator or a displacement sensor.

9. A saw blade detection device according to any one of claims 1 to 8, characterized in that: Three detectors are arranged on the base, and the ends of the detection feeler rods of the three detectors are respectively in contact with the end face of the saw blade body, the side face of the cutter head and the front end of the cutter head.

10. A saw blade detection method, characterized in that: Detection using the saw blade detection device described in any one of claims 1 to 9 comprises the following steps: S1, installing the saw blade between the fixed chuck and the movable chuck; S2, installing the detectors in place, with the ends of the detection feeler rods of the three detectors contacting the end face of the saw blade body, the side face of the cutter head, and the tip of the cutter head respectively; S3, the rotating shaft rotates, and the detectors detect the circular runout of the end face of the saw blade body, the side face of the cutter head, and the tip of the cutter head through the detection feeler rods.

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