A saw blade double-sided dotting device and a method of use

Abstract

A saw blade double-sided dotting device and a using method, comprising a left frame, a right frame and a lifting frame, the lifting frame is arranged between the left frame and the right frame, the upper end surface of the left frame is provided with a first sliding rail, the first sliding rail is arranged with a detection device, the upper end surface of the right frame is provided with a second sliding rail, the second sliding rail is arranged with a dotting machine box, the side of the lifting frame is provided with a rotary fixing device, the saw blade body is lifted to the rotary fixing device by the lifting frame to perform dotting work during the working of the device; the invention can simultaneously and automatically punch and drill the front and back surfaces of the saw blade base body, effectively improves the mechanical strength of the saw blade, in addition, the device also integrates the function of saw blade deformation detection, greatly improves the finished product quality of the saw blade base body.

Description

Technical Field

[0001] This invention relates to the field of saw blade production equipment, and in particular to a saw blade double-sided marking device and its usage method. Background Technology

[0002] The saw blade substrate is used to produce saw blades. The saw blade substrate is a round plate. The production method of the saw blade substrate is as follows: The worker first draws a circle on the steel plate, and then operates the laser cutting machine so that the laser head on it moves along the direction of the circle. The laser beam cuts the steel plate. After the laser head completes one circle, a saw blade substrate can be cut out of the steel plate. Then the worker moves the steel plate so that the uncut part of the steel plate enters the cutting station of the laser cutting machine. The above operation is repeated to cut out a second saw blade substrate on the steel plate. By repeating this operation, multiple saw blade substrates can be cut and processed along the length of the steel plate.

[0003] After the saw blade substrate is cut, in order to improve its performance, specific pressure needs to be applied to specific locations on the surface of the saw blade substrate. This causes plastic deformation of the surface structure of the saw blade substrate and gives the saw blade substrate higher mechanical strength than similar products. Currently, this work is done manually by workers first fixing the saw blade substrate on the machine tool. The above work has a low degree of automation and poor processing accuracy. After the saw blade has completed the marking work, deformation detection cannot be performed, which seriously affects the finished quality of the saw blade. Summary of the Invention

[0004] In view of the technical problems existing in the background art, the present invention provides a saw blade double-sided marking device and a method of use. The device can simultaneously and automatically punch and drill the front and back sides of the saw blade substrate, effectively improving the mechanical strength of the saw blade. In addition, the device also integrates the function of saw blade deformation detection, which greatly improves the finished product quality of the saw blade substrate.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A saw blade double-sided marking device and its usage method include a left frame, a right frame, and a lifting frame. The lifting frame is installed between the left and right frames. The upper surface of the left frame is provided with a first slide rail, on which a detection device is installed. The upper surface of the right frame is provided with a second slide rail, on which a marking machine box is installed. A rotating fixing device is provided on the side of the lifting frame. When the device is working, the saw blade body is lifted by the lifting frame to the rotating fixing device for marking work.

[0007] In a preferred embodiment, the lifting frame includes a support frame, and a first rotating shaft is mounted on the upper end of the support frame. The two ends of the first rotating shaft are movably connected to the support frame and can rotate freely around its own axis. One end of the first rotating shaft is connected to a rotary motor through a planetary reducer, and a transmission chain is wound around both sides of the first rotating shaft.

[0008] A lifting plate is provided below the support frame, and a support plate is vertically connected to the side of the lifting plate. One end of the transmission chain is fixedly connected to the lifting plate, and the other end of the transmission chain is wound around the first rotating shaft and then wound into the chain box above the support frame.

[0009] In a preferred embodiment, a sliding rod is provided on the inner side of the support frame, the sliding rod vertically passes through the lifting plate and is vertically connected to the upper and lower ends of the support frame, and a cylinder is installed in the middle of the support frame.

[0010] In a preferred embodiment, the rotating fixing device includes a stepper motor, which is mounted on the side of the lifting frame. The drive shaft of the stepper motor is connected to a second rotating shaft and is positioned above the lifting frame. A clamping device is provided at the end of the second rotating shaft.

[0011] In a preferred embodiment, the clamping device includes a telescopic air rod, a cylinder is installed inside the second rotating shaft and connected to the telescopic air rod, the other end of the telescopic air rod passes through the fixed plate, the chuck has an installation hole in the middle and is sleeved on the end of the telescopic air rod, a threaded hole is opened at the end of the telescopic air rod, and the threaded connector is threadedly connected to the threaded hole so that the chuck and the fixed plate together clamp the saw blade body.

[0012] In a preferred embodiment, the detection device includes a slider, which is mounted on a first slide rail and slides along the first slide rail. A base plate is mounted on the upper surface of the slider, and fixed frames are mounted on both sides of the base plate. An electronic dial indicator is placed on the base plate, and the upper surface of the fixed frame is threadedly connected to a screw.

[0013] In the preferred embodiment, the dotting machine housing is slidably connected to the second slide rail, the dotting machine housing is equipped with a rocker arm to control the dotting machine housing to slide along the second slide rail, and the side of the dotting machine housing is provided with an opening and a dotting component is installed.

[0014] In a preferred embodiment, the dotting assembly includes a dotting machine, which is installed on the side of the dotting machine housing. The dotting machine is movably connected to a connector, and an impact head is installed at the other end of the connector. The connector can rotate freely around its own axis.

[0015] A vertical plate is installed on the other side of the marking machine box. A lifting block is installed on the vertical plate. The lifting block is slidably connected to the vertical plate and slides vertically up and down. A hydraulic press is installed on the top of the vertical plate. The hydraulic press is connected to the lifting block through a hydraulic rod and controls the lifting block to rise and fall.

[0016] The side of the connector is fixedly connected to the connecting plate, which has a strip hole. A lever is vertically installed on the side of the lifting block. The lever passes through the strip hole and drives the connecting plate and the connector to rotate.

[0017] In a preferred embodiment, the device is used in the following steps:

[0018] Step 1: Transport the saw blade body onto the pallet, start the rotary motor and drive the first rotating shaft to rotate. The first rotating shaft drives the transmission chain to lift the pallet, so that the saw blade body is lifted to the specified height.

[0019] Step 2: Slide the saw blade body onto the telescopic air rod, then slide the chuck onto the end of the telescopic air rod, install the threaded connector and retract the telescopic air rod so that the fixed plate and the chuck clamp the saw blade body together. At this time, the fixed plate, the saw blade body and the chuck are coaxial.

[0020] Step 3: Shake the lever and adjust the position of the dotting machine box to move the impact head to the designated dotting position;

[0021] Step 4: Start the dotting machine and stepper motor. The second rotating shaft drives the saw blade body to rotate step by step, while the dotting machine drives the impact head to simultaneously impact and dot the surface of the saw blade body.

[0022] Step 5: After marking is completed, turn off the marking machine and stepper motor, start the cylinder and press it against the saw blade body until it deforms. Manually rotate the saw blade body and detect the deformation of the saw blade through the detection device.

[0023] In the preferred embodiment, during the dotting process in step 4, the hydraulic press drives the hydraulic rod to extend and retract, which in turn drives the lifting block and the lever to slide synchronously. The lever drives the connecting plate and the connecting head to rotate, which in turn drives the impact head to rotate synchronously and changes the impact angle of the impact head.

[0024] In Step 5 of the inspection process, first slide the slider and adjust the detection position of the electronic dial indicator, tighten the screw and press the electronic dial indicator down so that the probe of the electronic dial indicator is in contact with the surface of the saw blade body. Finally, rotate the saw blade body and observe the reading of the electronic dial indicator to detect the deformation of the saw blade body.

[0025] This invention patent can achieve the following beneficial effects:

[0026] 1. This device completes the dotting process on the saw blade substrate through automated equipment. Compared with manual processing, it has a higher degree of automation and its processing accuracy and efficiency are also significantly better than manual processing.

[0027] 2. This device can achieve fully automatic, regular, and controllable surface strengthening treatment of saw blades through programming. By applying specific pressure to specific locations on the substrate surface, the substrate surface structure is plastically deformed, thereby giving the substrate higher mechanical strength than similar products.

[0028] 3. This invention can change the impact angle of the impact head in real time during the impacting process, and can change different types of impact heads to meet different production needs according to product requirements;

[0029] 4. This invention also incorporates saw blade substrate deformation detection function, further ensuring the quality of finished products. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention (in working condition);

[0032] Figure 2 This is a side front view of the overall structure of the invention (in a non-operating state).

[0033] Figure 3 This is an enlarged schematic diagram of the lifting frame structure of the present invention;

[0034] Figure 4 This is an enlarged schematic diagram of the rotating fixing device structure of the present invention;

[0035] Figure 5 This is an enlarged schematic diagram of the detection device structure of the present invention;

[0036] Figure 6 This is an enlarged schematic diagram of the dot-marking component structure of the present invention;

[0037] Figure 7 This is a schematic diagram showing the effect of the saw blade substrate after being impacted and dotted by the device.

[0038] In the diagram: Left frame 1, Right frame 2, Lifting frame 3, Support frame 301, Rotary motor 302, Planetary reducer 303, First rotating shaft 304, Transmission chain 305, Lifting plate 306, Chain box 307, Slide rod 308, Pallet 309, Marking machine housing 4, Rotating fixing device 5, Stepper motor 501, Second rotating shaft 502, Fixed plate 503, Telescopic air rod 504, Threaded hole 505, Chuck 506, Threaded connector 507. 6. First slide rail; 7. Detection device; 701. Slider; 702. Base plate; 703. Fixing frame; 704. Screw; 705. Electronic dial indicator; 8. Saw blade body; 9. Cylinder; 10. Second slide rail; 11. Rocker arm; 12. Dotting assembly; 1201. Vertical plate; 1202. Dotting machine; 1203. Connector; 1204. Impact head; 1205. Hydraulic press; 1206. Hydraulic rod; 1207. Lifting block; 1208. Lever; 1209. Connecting plate; 1210. Strip hole. Detailed Implementation

[0039] like Figure 1 and Figure 2As shown, a saw blade double-sided marking device and its usage method include a left frame 1, a right frame 2, and a lifting frame 3. The lifting frame 3 is installed between the left frame 1 and the right frame 2. The upper end face of the left frame 1 is provided with a first slide rail 6, and a detection device 7 is installed on the first slide rail 6. The upper end face of the right frame 2 is provided with a second slide rail 10, and a marking machine box 4 is installed on the second slide rail 10. A rotating fixing device 5 is provided on the side of the lifting frame 3. When the device is working, the saw blade body 8 is lifted by the lifting frame 3 to the rotating fixing device 5 for marking work.

[0040] Preferred solutions include Figure 3 As shown, the lifting frame 3 includes a support frame 301. A first rotating shaft 304 is mounted on the upper end of the support frame 301. Both ends of the first rotating shaft 304 are movably connected to the support frame 301 and can rotate freely around its own axis. One end of the first rotating shaft 304 is connected to a rotary motor 302 through a planetary reducer 303. A transmission chain 305 is wound around both sides of the first rotating shaft 304. A lifting plate 306 is provided below the support frame 301. A support plate 309 is vertically connected to the side of the lifting plate 306. One end of the transmission chain 305 is fixedly connected to the lifting plate 306. The other end of the transmission chain 305 is wound around the first rotating shaft 304 and then wound in a chain box 307 above the support frame 301. A slide rod 308 is provided on the inner side of the support frame 301. The slide rod 308 vertically passes through the lifting plate 306 and is vertically connected to the upper and lower ends of the support frame 301. A cylinder 9 is installed in the middle of the support frame 301.

[0041] Since the saw blade body 8 to be processed is usually large in size and weight, when it is necessary to lift the saw blade body 8, first fix the saw blade body 8 vertically on the support plate 309, then start the rotary motor 302. The rotary motor 302 drives the first rotating shaft 304 to rotate through the planetary reducer 303 and winds up the transmission chain 305. The transmission chain 305 drives the lifting plate 306 and the support plate 309 to move upward until the designated position. The sliding rod 308 can ensure the stability of the lifting plate 306 during the movement.

[0042] Preferred solutions include Figure 2 and Figure 4As shown, the rotating fixing device 5 includes a stepper motor 501, which is mounted on the side of the lifting frame 3. The drive shaft of the stepper motor 501 is connected to the second rotating shaft 502 and is located above the lifting frame 3. A clamping device is provided at the end of the second rotating shaft 502. The clamping device includes a telescopic air rod 504. A cylinder is provided inside the second rotating shaft 502 and connected to the telescopic air rod 504. The other end of the telescopic air rod 504 passes through the fixed plate 503. A mounting hole is provided in the middle of the chuck 506 and it is sleeved on the end of the telescopic air rod 504. A threaded hole 505 is provided at the end of the telescopic air rod 504. A threaded connector 507 is threadedly connected to the threaded hole 505 and the chuck 506 and the fixed plate 503 clamp the saw blade body 8 together.

[0043] When it is necessary to install the saw blade body 8, simply put the saw blade body 8 onto the telescopic air rod 504, then put the chuck 506 onto the outermost side of the telescopic air rod 504, and finally install the threaded connector 507 and retract the telescopic air rod 504. The telescopic air rod 504 drives the chuck 506 to retract inward synchronously and clamp the saw blade body 8 together with the fixed plate 503. At this time, the fixed plate 503, the saw blade body 8 and the chuck 506 are coaxial.

[0044] Preferred solutions include Figure 5 As shown, the detection device 7 includes a slider 701, which is mounted on the first slide rail 6 and slides along the first slide rail 6. A base plate 702 is mounted on the upper end face of the slider 701. Fixing frames 703 are mounted on both sides of the base plate 702. An electronic dial indicator 705 is placed on the base plate 702. The upper end face of the fixing frame 703 is threadedly connected to the screw 704. When it is necessary to fix the electronic dial indicator 705, it is only necessary to tighten the screw 704 downwards to clamp the instrument.

[0045] Preferred solutions include Figure 2 and Figure 5 As shown, the dotting machine housing 4 is slidably connected to the second slide rail 10. The dotting machine housing 4 is equipped with a rocker arm 11 to control the dotting machine housing 4 to slide along the second slide rail 10. The side of the dotting machine housing 4 is provided with an opening and a dotting assembly 12 is installed thereon.

[0046] The dotting assembly 12 includes a dotting machine 1202, which is installed on the side of the dotting machine housing 4. The dotting machine 1202 is movably connected to the connector 1203. An impact head 1204 is installed at the other end of the connector 1203. The connector 1203 can rotate freely around its own axis.

[0047] On the other side of the marking machine housing 4, there is a vertical plate 1201. The vertical plate 1201 is equipped with a lifting block 1207. The lifting block 1207 is slidably connected to the vertical plate 1201 and slides vertically up and down. A hydraulic press 1205 is provided on the top of the vertical plate 1201. The hydraulic press 1205 is connected to the lifting block 1207 through a hydraulic rod 1206 and controls the lifting block 1207 to rise and fall.

[0048] The side of the connector 1203 is fixedly connected to the connecting plate 1209. The connecting plate 1209 has a strip hole 1210. The side of the lifting block 1207 is vertically provided with a lever 1208. The lever 1208 passes through the strip hole 1210 and drives the connecting plate 1209 and the connector 1203 to rotate.

[0049] When the device is in operation, the second rotating shaft 502 drives the saw blade body 8 to rotate stepwise. Simultaneously, the dotting machine 1202 drives the impact head 1204 to synchronously impact and dot the surface of the saw blade body 8.

[0050] The hydraulic press 1205 drives the hydraulic rod 1206 to extend and retract, which in turn drives the lifting block 1207 and the lever 1208 to slide synchronously. The lever 1208 drives the connecting plate 1209 and the connector 1203 to rotate, which in turn drives the impact head 1204 to rotate synchronously and change the impact angle of the impact head 1204 each time.

[0051] By changing the impact angle of the impact head 1204, the stamping can be prevented from maintaining the same shape, and the alternating stamping can further improve the mechanical strength of the saw blade body 8.

[0052] Example: Impact-marking process on a saw blade with a diameter of 1500mm and a thickness of 3mm.

[0053] Step 1: Load the φ1500mm saw blade onto the pallet 309, start the rotary motor 302 and drive the first rotary shaft 304 to rotate. The first rotary shaft 304 drives the transmission chain 305 to lift the pallet 309, so that the φ1500mm saw blade is lifted to the specified height.

[0054] Step 2: Fit the φ1500mm saw blade onto the telescopic air rod 504, and then fit the chuck 506 onto the end of the telescopic air rod 504. Install the threaded connector 507 and retract the telescopic air rod 504. The telescopic air rod 504 drives the fixed plate 503 to retract inward and clamp the φ1500mm saw blade together with the chuck 506. At this time, it is necessary to ensure that the fixed plate 503, the φ1500mm saw blade and the chuck 506 are coaxial.

[0055] Step 3: Shake the rocker arm 11 and adjust the position of the dotting machine box 4 so that the impact head 1204 moves to the designated dotting position;

[0056] Step 4: Start the dotting machine 1202 and the stepper motor 501. The second rotating shaft 502 drives the φ1500mm saw blade to rotate step by step, while the dotting machine 1202 drives the impact head 1204 to synchronously impact and dot the surface of the φ1500mm saw blade. The power of the stepper motor 501 is controlled within 1.5KW, the dotting frequency of the dotting machine 1202 is controlled above 120 times / min, the impact head 1204 is made of Cr12MoV material with a hardness range of HRC58~62, and the pressure adjustment range of the impact head 1204 is 0.2-10MPa.

[0057] During the impact testing process, the hydraulic press 1205 drives the hydraulic rod 1206 to extend and retract, which in turn causes the lifting block 1207 and the lever 1208 to slide synchronously. The lever 1208 drives the connecting plate 1209 and the connecting head 1203 to rotate, which in turn causes the impact head 1204 to rotate synchronously and change the impact angle of the impact head 1204. The impact effect on the saw blade surface is as follows: Figure 7 As shown;

[0058] Step 5: After the marking is completed, turn off the marking machine 1202 and the stepper motor 501, start the cylinder 9 and press it outward against the saw blade body 8 until it is deformed, slide the slider 701 and adjust the detection position of the electronic micrometer 705, tighten the screw 704 and press the electronic micrometer 705 downward so that the probe of the electronic micrometer 705 is against the surface of the saw blade body 8, and finally rotate the saw blade body 8 and observe the reading of the electronic micrometer 705 to detect the deformation of the saw blade body 8.

[0059] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A saw blade double-sided marking device, comprising a left frame (1), a right frame (2), and a lifting frame (3), characterized in that: The lifting frame (3) is installed between the left frame (1) and the right frame (2). The upper end face of the left frame (1) is provided with a first slide rail (6), and a detection device (7) is installed on the first slide rail (6). The upper end face of the right frame (2) is provided with a second slide rail (10), and a dotting machine box (4) is installed on the second slide rail (10). A rotating fixing device (5) is provided on the side of the lifting frame (3). When the device is working, the saw blade body (8) is lifted by the lifting frame (3) to the rotating fixing device (5) to perform dotting work. The dotting machine housing (4) is slidably connected to the second slide rail (10). The dotting machine housing (4) is equipped with a rocker arm (11) to control the dotting machine housing (4) to slide along the second slide rail (10). The side of the dotting machine housing (4) is provided with an opening and a dotting assembly (12) is installed. The dotting assembly (12) includes a dotting machine (1202), which is installed on the side of the dotting machine housing (4). The dotting machine (1202) is movably connected to the connector (1203). The other end of the connector (1203) is provided with an impact head (1204). The connector (1203) can rotate freely around its own axis. A vertical plate (1201) is installed on the other side of the marking machine housing (4). A lifting block (1207) is provided on the vertical plate (1201). The lifting block (1207) is slidably connected to the vertical plate (1201) and slides vertically up and down. A hydraulic press (1205) is provided on the top of the vertical plate (1201). The hydraulic press (1205) is connected to the lifting block (1207) through a hydraulic rod (1206) and controls the lifting block (1207) to rise and fall. The side of the connector (1203) is fixedly connected to the connecting plate (1209). The connecting plate (1209) has a strip hole (1210). The side of the lifting block (1207) is vertically provided with a lever (1208). The lever (1208) passes through the strip hole (1210) and drives the connecting plate (1209) and the connector (1203) to rotate.

2. The saw blade double-sided marking device according to claim 1, characterized in that: The lifting frame (3) includes a support frame (301), and a first rotating shaft (304) is mounted on the upper end of the support frame (301). The two ends of the first rotating shaft (304) are movably connected to the support frame (301) and can rotate freely around its own axis. One end of the first rotating shaft (304) is connected to a rotary motor (302) through a planetary reducer (303). A transmission chain (305) is wound around both sides of the first rotating shaft (304). A lifting plate (306) is provided below the support frame (301). A support plate (309) is vertically connected to the side of the lifting plate (306). One end of the transmission chain (305) is fixedly connected to the lifting plate (306), and the other end of the transmission chain (305) is wound around the first rotating shaft (304) and then wound into the chain box (307) above the support frame (301).

3. The saw blade double-sided marking device according to claim 2, characterized in that: A slide rod (308) is provided on the inner side of the support frame (301). The slide rod (308) passes vertically through the lifting plate (306) and is vertically connected to the upper and lower ends of the support frame (301). A cylinder (9) is installed in the middle of the support frame (301).

4. The saw blade double-sided marking device according to claim 1, characterized in that: The rotating fixing device (5) includes a stepper motor (501), which is mounted on the side of the lifting frame (3). The drive shaft of the stepper motor (501) is connected to the second rotating shaft (502) and is located above the lifting frame (3). A clamping device is provided at the end of the second rotating shaft (502).

5. The saw blade double-sided marking device according to claim 4, characterized in that: The clamping device includes a telescopic air rod (504), a cylinder is provided in the second rotating shaft (502) and connected to the telescopic air rod (504), the other end of the telescopic air rod (504) passes through the fixed plate (503), the chuck (506) has a mounting hole in the middle and is sleeved on the end of the telescopic air rod (504), a threaded hole (505) is opened at the end of the telescopic air rod (504), and a threaded connector (507) is threadedly connected to the threaded hole (505) so that the chuck (506) and the fixed plate (503) clamp the saw blade body (8) together.

6. The saw blade double-sided marking device according to claim 1, characterized in that: The detection device (7) includes a slider (701), which is mounted on the first slide rail (6) and slides along the first slide rail (6) for a limited distance. A base plate (702) is mounted on the upper surface of the slider (701), and a fixing frame (703) is mounted on both sides of the base plate (702). An electronic dial indicator (705) is placed on the base plate (702), and the upper surface of the fixing frame (703) is threadedly connected to the screw (704).

7. The double-sided dotting device for a saw blade according to any one of claims 1-6, characterized in that, The method of using this device includes the following steps: Step 1: Transport the saw blade body (8) onto the pallet (309), start the rotary motor (302) and drive the first rotating shaft (304) to rotate. The first rotating shaft (304) drives the transmission chain (305) to lift the pallet (309) so that the saw blade body (8) is lifted to the specified height. Step 2: Slide the saw blade body (8) onto the telescopic air rod (504), and then slide the chuck (506) onto the end of the telescopic air rod (504). Install the threaded connector (507) and retract the telescopic air rod (504) so ​​that the fixed plate (503) and the chuck (506) clamp the saw blade body (8) together. At this time, the fixed plate (503), the saw blade body (8) and the chuck (506) are coaxial. Step 3: Shake the lever (11) and adjust the position of the dotting machine box (4) to move the impact head (1204) to the designated dotting position; Step 4: Start the dotting machine (1202) and the stepper motor (501). The second rotating shaft (502) drives the saw blade body (8) to rotate step by step, and the dotting machine (1202) drives the impact head (1204) to simultaneously impact and dot the surface of the saw blade body (8). Step 5: After the dotting is completed, turn off the dotting machine (1202) and the stepper motor (501), start the cylinder (9) and press it against the saw blade body (8) until it is deformed. Manually rotate the saw blade body (8) and detect the deformation of the saw blade through the detection device (7).

8. The saw blade double-sided marking device according to claim 7, characterized in that: During the dotting process in step 4, the hydraulic press (1205) drives the hydraulic rod (1206) to extend and retract, which in turn drives the lifting block (1207) and the lever (1208) to slide synchronously. The lever (1208) drives the connecting plate (1209) and the connecting head (1203) to rotate, which in turn drives the impact head (1204) to rotate synchronously and changes the impact angle of the impact head (1204). In Step 5, slide the slider (701) and adjust the detection position of the electronic dial indicator (705). Tighten the screw (704) and press the electronic dial indicator (705) down so that the probe of the electronic dial indicator (705) abuts against the surface of the saw blade body (8). Finally, rotate the saw blade body (8) and observe the reading of the electronic dial indicator (705) to detect the deformation of the saw blade body (8).

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