A cutting device and cutting method for bearing steel

Abstract

The present invention discloses a cutting device and a cutting method for bearing steel, belonging to the field of cutting devices. A cutting device for bearing steel comprises a frame, a placing plate is installed on the frame, a discharge port is opened on the surface of the placing plate, a saw blade is arranged above the discharge port, a driving member for providing power is arranged on one side of the saw blade, and a detection component is arranged on one side of the driving member; the present invention can detect the wear state of the cutting part of the saw blade in real time when the saw blade is rotating and cutting through the setting of the detection component. When the wear value exceeds the set value, the warning component and the marking component cooperate with each other to warn the operating staff in time, so as to avoid the occurrence of workpiece breakage caused by cutting in the worn state of the saw blade, and facilitate the subsequent maintenance and inspection of the staff, effectively improve the product quality of the device cutting, reduce the occurrence of defective products, and save maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting devices, and in particular to a cutting device and a cutting method for bearing steel. Background Art

[0002] Bearing steel is a high-carbon chromium bearing steel with high strength, uniform hardness and good wear resistance. It is mainly used to manufacture rolling bearing parts such as balls, rollers and sleeves. Bearing steel needs to go through a cutting process during production and processing to obtain the material of the required size and shape. In the prior art, when cutting the ring, a circular saw blade is generally used for cutting.

[0003] However, in actual operation, the teeth on the saw blade are severely worn due to long-term use. Severely worn tools may lead to increased cutting force, increased cutting temperature, and increased risk of breakage, thereby reducing the cutting quality of the device. For this reason, we propose a cutting device and cutting method for bearing steel to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the saw teeth on the saw blade are severely worn due to long-term use. Severely worn tools may lead to increased cutting force, increased cutting temperature, increased risk of breakage, and thus reduce the cutting quality of the device. A cutting device and cutting method for bearing steel are proposed to solve the problem in the prior art that the saw teeth on the saw blade are severely worn due to long-term use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A cutting device for bearing steel comprises a frame, a placing plate is installed on the frame, a discharge port is opened on the surface of the placing plate, a saw blade is arranged above the discharge port, a driving member for providing power is arranged on one side of the saw blade, and a detection component is arranged on the side of the driving member, one end of which contacts the top of the saw blade and is used to detect the wear of the cutting part of the saw blade; a warning component is arranged on the detection component, and when the wear value is exceeded, the warning component is driven to operate to warn the staff to replace and repair; the detection component is also provided with a marking component, and when the wear value is exceeded, the marking component is driven to operate to mark the cutting part of the saw blade.

[0007] Preferably, the driving member includes a connecting shaft fixed at the axis of the saw blade, one end of the connecting shaft is connected and installed with a first driving part, a U-shaped mounting plate is fixed to the bottom of the first driving part, a fixing plate is fixed to the surface of the U-shaped mounting plate, a second driving part is installed on the top of the U-shaped mounting plate, the second driving part is installed on a support plate, and one end of the support plate is fixedly connected to the frame.

[0008] Preferably, the detection assembly includes a protective cover fixed at one end of the fixed plate, the surface of the protective cover is rotatably connected to a rotating shaft through a bearing, a rotating gear is fixed to the surface of the rotating shaft, the surface of the rotating gear is meshed with the saw blade, a notch is provided on the side of the protrusion of the rotating gear, an arc ring is slidably connected in the notch, one end of the arc ring is fixedly connected to the inner wall of the protective cover, a detection port is provided at the end of the arc ring, and a detection part is provided on the rotating gear.

[0009] Preferably, the detection member includes a sliding rod slidably connected to the rotating gear, one end of the sliding rod passes through the rotating gear to the outside where a detection head is fixed, the other end of the sliding rod is fixed with a limit block, a tension spring is fixed between the limit block and the rotating gear, and the tension spring is sleeved on the surface of the sliding rod.

[0010] Preferably, the warning component includes a connecting rod fixed at one end of the limit block, a pressure plate is fixed to one end of the connecting rod, an airbag is attached to the bottom surface of the pressure plate, the airbag is installed on the rotating gear, one end of the airbag is connected to an air pipe, one end of the air pipe passes through the rotating gear and the protective cover and extends to the outside where a display is provided.

[0011] Preferably, the display component includes a connecting tube connected to the gas pipe, the connecting tube is installed on one side surface of the protective cover, a piston is slidably connected to the inside of the connecting tube, a contact block is installed on the top of the piston, an alarm is arranged above the contact block, and a counter is arranged at one end of the alarm in the connecting tube.

[0012] Preferably, the marking assembly includes a liquid storage bag installed in the rotating gear, one end of the liquid storage bag is connected to a delivery pipe, the end of the delivery pipe passes through the rotating gear and extends to the outside where a nozzle is fixed, a valve is provided on the nozzle, and one end of the nozzle points to the saw blade.

[0013] Preferably, a rotating roller is provided on the surface of the rotating shaft through a belt drive, one end of the rotating roller is rotatably connected to a fixed block through a bearing, the fixed block is fixed in the air outlet, and a fan blade is fixed to one end of the rotating roller.

[0014] Preferably, symmetrically distributed clamping members are provided on the top of the placement plate.

[0015] A cutting method for bearing steel mainly comprises the following steps:

[0016] Step A: Place the workpiece to be cut on the placement plate in advance, and before cutting, fix the workpiece to be cut to avoid deviation;

[0017] Step B: When cutting, the driving member provided on the frame is started to drive the saw blade to rotate, and then the saw blade is moved downward to perform a cutting operation corresponding to the cutting part on the workpiece;

[0018] Step C: During the cutting operation, the degree of wear of the cutting part of the saw blade in the cutting state is detected in real time through the set detection component. During the detection, through the cooperation of the warning component and the marking component, when the wear value exceeds the set value, a warning is issued to remind the staff to replace and repair, and the worn part is marked at the same time.

[0019] Compared with the prior art, the present invention provides a cutting device for bearing steel, which has the following beneficial effects:

[0020] 1. The cutting device for bearing steel performs real-time detection of the saw blade in a rotating cutting state through a detection component arranged on one side of the driving member, thereby eliminating the trouble of frequent manual inspections, making the operation more convenient, and realizing detection without installing precise detection components, thereby saving the cost of the device.

[0021] 2. This kind of cutting device for bearing steel drives the detection component to run synchronously through the saw blade. When the detection does not exceed the wear value, the detection component rotates synchronously without warning. When the detection exceeds the wear value, the detection component cooperates with the warning component to move, and the warning component is used to warn the detection exceeding the standard part, so as to facilitate the staff to stop the cutting operation in time, avoid malfunctions, and reduce the occurrence of defective products when cutting workpieces.

[0022] 3. This kind of cutting device for bearing steel can also drive the marking component to run synchronously when the detection component is running. When the detection exceeds the standard, the worn part of the saw blade can be marked by the marking component, which is convenient for the maintenance personnel to check and repair, thereby effectively improving the maintenance efficiency.

[0023] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention can detect the wear state of the cutting part of the saw blade in real time through the setting of the detection component when the saw blade is rotating and cutting. When the wear value exceeds the set value, the warning component and the marking component cooperate with each other to promptly warn the operating staff to avoid the occurrence of workpiece breakage caused by cutting in the worn state of the saw blade, and facilitate the subsequent maintenance and inspection of the staff, effectively improve the product quality of the device, reduce the occurrence of defective products, and save maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a cutting device for bearing steel proposed by the present invention;

[0025] Figure 2This is a schematic diagram of the top view of a cutting device for bearing steel proposed by the present invention;

[0026] Figure 3 A schematic diagram of a side cross-sectional structure of a cutting device for bearing steel proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of a front cross-sectional structure of a cutting device for bearing steel proposed by the present invention;

[0028] Figure 5 The present invention proposes Figure 4 A schematic diagram of the enlarged structure of the middle A area;

[0029] Figure 6 This is a schematic diagram of a partially cutaway three-dimensional structure of a detection component in a cutting device for bearing steel proposed by the present invention;

[0030] Figure 7 It is a schematic diagram of a partial three-dimensional structure of a detection component in a cutting device for bearing steel proposed by the present invention when it is in contact with a saw blade;

[0031] Figure 8 It is another partial three-dimensional structural schematic diagram of a detection component of a cutting device for bearing steel proposed by the present invention in a contact state with a saw blade;

[0032] Fig. 9 This is a schematic diagram of the structure of an arc ring and a rotating gear in a cutting device for bearing steel proposed by the present invention.

[0033] In the figure: 1, frame; 2, placement plate; 3, saw blade; 4, driving member; 41, first driving part; 42, connecting shaft; 43, U-shaped mounting plate; 44, fixing plate; 45, second driving part; 46, supporting plate; 5, detection assembly; 51, protective cover; 52, rotating shaft; 53, rotating gear; 531, notch; 54, arc ring; 55, detection port; 56, sliding rod; 57, detection head; 58, tension spring; 59. Limit block; 6. Warning component; 61. Connecting rod; 62. Pressing plate; 63. Air bag; 64. Air pipe; 65. Connecting tube; 66. Piston; 67. Contact block; 68. Warning device; 69. Counter; 7. Marking component; 71. Liquid storage bag; 72. Delivery pipe; 73. Nozzle; 74. Valve; 8. Discharge port; 9. Clamping piece; 10. Rotating roller; 11. Fixing block; 12. Fan blade; 13. Air outlet. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, the term "multiple" refers to two or more. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0036] In the description of this specification, the description of the terms "one embodiment", "some implementations", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Reference Figure 1-9 A cutting device for bearing steel comprises a frame 1, a placing plate 2 is installed on the frame 1, a discharge port 8 is opened on the surface of the placing plate 2, a saw blade 3 is arranged above the discharge port 8, a driving member 4 for providing power is arranged on one side of the saw blade 3, a detection component 5 arranged on one side of the driving member 4, one end of which contacts the top of the saw blade 3, and is used to detect the wear of the cutting part of the saw blade 3; a warning component 6 is arranged on the detection component 5, and when the wear value is exceeded, the warning component 6 is driven to run to warn the staff to replace and repair; a marking component 7 is also arranged on the detection component 5, and when the wear value is exceeded, the marking component 7 is driven to run to mark the cutting part of the saw blade 3.

[0038] When using this scheme, it is considered that in the prior art, when the saw blade 3 is used to cut the casing, the cutting part on the saw blade 3 is easily worn due to long-term use, and then the workpiece is easily damaged during subsequent cutting, affecting the cutting effect. Generally, the staff performs regular maintenance and inspection. In addition, when the precision sensor is installed and detected in some existing devices, since the saw blade 3 needs to rotate continuously, the detection is very inconvenient and the production cost is relatively high. Therefore, in this scheme, when the saw blade 3 is in the cutting operation process, the detection component 5 is set to contact with the saw blade 3 and drive the detection component 5 to run synchronously. When the cutting part of the saw blade 3 does not exceed the wear value, the normal cutting of the saw blade 3 is not affected. When the set wear value is exceeded, the detection component 5 moves at the detection part during rotation, and then cooperates with the warning component 6 to warn the detection part that exceeds the standard, so that the staff can stop the cutting operation in time, avoid failure, and reduce the occurrence of defective products when cutting the workpiece. At the same time, when the detection component 5 is running, it can also drive the marking component 7 to run synchronously. When the detection exceeds the standard, the worn part of the saw blade 3 can be marked by the marking component 7, which is convenient for the maintenance personnel to check and repair, thereby effectively improving the maintenance efficiency.

[0039] In a preferred embodiment, referring to Figure 3 , Figure 6 , Figure 7 and Fig. 9 The driving member 4 includes a connecting shaft 42 fixed at the axis of the saw blade 3, one end of the connecting shaft 42 is connected and installed with a first driving part 41, a U-shaped mounting plate 43 is fixed to the bottom of the first driving part 41, a fixing plate 44 is fixed to the surface of the U-shaped mounting plate 43, a second driving part 45 is installed on the top of the U-shaped mounting plate 43, the second driving part 45 is installed on a supporting plate 46, one end of the supporting plate 46 is fixedly connected to the frame 1, and the detection component 5 includes a protective cover 51 fixed to one end of the fixing plate 44, the surface of the protective cover 51 is rotatably connected with a rotating shaft 52 through a bearing, the surface of the rotating shaft 52 is fixed with a rotating gear 53, and the surface of the rotating gear 53 meshes with the saw blade 3 A notch 531 is provided on the side of the protrusion of the rotating gear 53, and an arc ring 54 is slidably connected in the notch 531. One end of the arc ring 54 is fixedly connected to the inner wall of the protective cover 51, and a detection port 55 is provided at the end of the arc ring 54. A detection member is provided on the rotating gear 53, and the detection member includes a slide bar 56 slidably connected to the rotating gear 53. One end of the slide bar 56 passes through the rotating gear 53 to the outside where a detection head 57 is fixed, and a limit block 59 is fixed at the other end of the slide bar 56. A tension spring 58 is fixed between the limit block 59 and the rotating gear 53, and the tension spring 58 is sleeved on the surface of the slide bar 56. A symmetrically distributed clamping member 9 is provided on the top of the placement plate 2.

[0040] By adopting the above scheme, during the cutting operation, the first driving part 41 is started in advance to drive the saw blade 3 on the connecting shaft 42 to rotate, and then the second driving part 45 is started to drive the saw blade 3 on the U-shaped mounting plate 43 to move downward as a whole, and the workpiece below can be cut as the saw blade 3 moves downward, wherein the second driving part 45 and the first driving part 41 are replaced by hydraulic rods and motors for operation, wherein the clamping part 9 includes a driving cylinder arc clamping plate mounting block, and before the cutting operation, the workpiece placed on the placement plate 2 can be clamped and fixed by the clamping part 9 to prevent it from deflecting during cutting, and when the saw blade 3 is rotating for cutting, due to the rotating gear 5 3 is meshed with the saw blade 3 for transmission. When the saw blade 3 is used for a long time, the cutting part of the saw blade 3 is worn. At this time, when the end of the detection head 57 moves to the detection port 55, the detection head 57 extends out due to the wear of the cutting part of the saw blade 3, and displacement movement occurs, so that the worn part of the saw blade 3 is detected. This method saves the trouble of frequent manual observation with the naked eye, and the operation is more convenient, so that the staff can know the wear state of the saw blade 3 in time. In the unworn state, since the saw blade 3 is in conflict with the detection head 57, the detection head 57 is limited by the arc ring 54 and rotates around the rotating shaft 52 until it is detected that there is movement at a severely worn part.

[0041] It should be noted that the two ends of the detection head 57 are rounded and in an arc shape. During detection, the rotating gear 53 is stuck in the concave part cut on the saw blade 3. When the cutting head on the saw blade 3 is worn and shortened, the detection head 57 moves to the detection port 55 and extends out. At this time, the bottom of the detection head 57 exceeds the circle range of the arc ring 54, but the two ends of the detection head 57 are not separated from the inner wall of the arc ring 54. As the rotating gear 53 continues to rotate, the detection head 57 is limited by the arc ring 54, retracts to the inner wall of the arc ring 54 and continues to slide.

[0042] In a preferred embodiment, referring to Figure 5 , Figure 6 and Figure 7 The warning component 6 includes a connecting rod 61 fixed to one end of the limit block 59, a pressure plate 62 is fixed to one end of the connecting rod 61, an air bag 63 is attached to the bottom surface of the pressure plate 62, the air bag 63 is installed on the rotating gear 53, one end of the air bag 63 is connected to an air pipe 64, one end of the air pipe 64 passes through the rotating gear 53 and the protective cover 51 and extends to the outside where a display is provided, the display includes a connecting cylinder 65 connected to the air pipe 64, the connecting cylinder 65 is installed on one side surface of the protective cover 51, a piston 66 is slidably connected to the inside of the connecting cylinder 65, a contact block 67 is installed on the top of the piston 66, an alarm 68 is provided above the contact block 67, and one end of the alarm 68 is located in the connecting cylinder 65 and a counter 69 is provided.

[0043] By adopting the above scheme, when the detection head 57 is running to detect the saw blade 3, the limit block 59 is synchronously operated to drive the connecting rod 61 to move, and then the pressure plate 62 is used to press down and squeeze the airbag 63, so that the air in the airbag 63 is squeezed out through the air pipe 64, and then transported to the connecting tube 65. The piston 66 in the connecting tube 65 is pushed up by the air, contacts the alarm 68 to sound an alarm, and then reminds the staff to stop the equipment operation and perform maintenance and replacement operations. By adopting this scheme, there is no need for the staff to frequently check the wear state of the saw blade 3, which is more convenient to use and saves the labor intensity of the staff. In the process of the piston 66 moving up, it contacts the counter 69, so that the counter 69 counts the number of times it moves up. The connecting tube 65 is made of transparent plastic material, which is convenient for the staff to view the count value of the counter 69 from the outside. The staff checks the count value to judge the degree of wear of the cutting part of the saw blade 3, and then considers whether it does not need to be repaired or discarded, providing a basis for maintenance personnel.

[0044] In a preferred embodiment, referring to Figure 7 and Figure 8 The marking component 7 includes a liquid storage capsule 71 installed in the rotating gear 53, one end of the liquid storage capsule 71 is connected to a delivery pipe 72, the end of the delivery pipe 72 passes through the rotating gear 53 and extends to the outside to be fixed with a nozzle 73, a valve 74 is provided on the nozzle 73, one end of the nozzle 73 points to the saw blade 3, a rotating roller 10 is driven by a belt on the surface of the rotating shaft 52, one end of the rotating roller 10 is rotatably connected to a fixed block 11 through a bearing, the fixed block 11 is fixed in the air outlet 13, and a fan blade 12 is fixed at one end of the rotating roller 10.

[0045] By adopting the above scheme, when the saw blade 3 exceeds the set wear value, the limit block 59 moves downward to squeeze the liquid storage capsule 71 so that the marking liquid pre-introduced in the liquid storage capsule 71 is squeezed out from the delivery pipe 72 and delivered to the nozzle 73. Since the nozzle 73 points to the detection point where the saw blade 3 and the rotating gear 53 are in contact, the marking liquid sprayed by the nozzle 73 can mark the wear part of the cutting part of the saw blade 3 at the detection point, which is convenient for subsequent maintenance personnel to inspect the specific location of the wear, and at the same time, it is compared with the value counted at the warning component 6 to improve the accuracy of the device detection. When the moving shaft 52 rotates, it can also drive the rotating roller 10 to rotate, so that the fan blades 12 generate airflow to blow air into the protective cover 51, and clean the debris attached to the cutting part of the saw blade 3. This further improves the detection accuracy of the detection component 5. At the same time, the airflow can be used to blow and cool the cutting part of the saw blade 3 to extend its service life and reduce the occurrence of workpiece breakage. The surface of the liquid storage capsule 71 is provided with a liquid / air inlet pipe, and a one-way valve is provided on the liquid / air inlet pipe to facilitate the resetting of the air intake and the introduction of the marking liquid when the liquid storage capsule 71 is used again.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cutting device for bearing steel, comprising a frame (1), a placing plate (2) being mounted on the frame (1), a discharge port (8) being provided on the surface of the placing plate (2), a saw blade (3) being arranged above the discharge port (8), a driving member (4) for providing power being arranged on one side of the saw blade (3), characterized in that: A detection component (5) is arranged on one side of the driving member (4), one end of which contacts the top of the saw blade (3) and is used to detect wear on a cutting portion of the saw blade (3); The detection component (5) is provided with a warning component (6), and when the wear value is detected to be exceeded, the warning component (6) is driven to operate to warn the staff to replace and repair; the detection component (5) is also provided with a marking component (7), and when the wear value is detected to be exceeded, the marking component (7) is driven to operate to mark the cutting part of the saw blade (3); The driving member (4) comprises a connecting shaft (42) fixed at the axis of the saw blade (3); one end of the connecting shaft (42) is connected to and mounted with a first driving part (41); a U-shaped mounting plate (43) is fixed to the bottom of the first driving part (41); a fixing plate (44) is fixed to the surface of the U-shaped mounting plate (43); a second driving part (45) is mounted on the top of the U-shaped mounting plate (43); the second driving part (45) is mounted on a supporting plate (46); one end of the supporting plate (46) is fixedly connected to the frame (1); The detection assembly (5) comprises a protective cover (51) fixed to one end of a fixed plate (44); a rotating shaft (52) is rotatably connected to the surface of the protective cover (51) via a bearing; a rotating gear (53) is fixed to the surface of the rotating shaft (52); the surface of the rotating gear (53) is meshed with the saw blade (3); a notch (531) is provided on the side of the protrusion of the rotating gear (53); an arc ring (54) is slidably connected in the notch (531); one end of the arc ring (54) is fixedly connected to the inner wall of the protective cover (51); a detection port (55) is provided at the end of the arc ring (54); and a detection member is provided on the rotating gear (53); The detection member comprises a slide rod (56) slidably connected to the rotating gear (53), one end of the slide rod (56) passes through the rotating gear (53) to the outside of which a detection head (57) is fixed, the other end of the slide rod (56) is fixed with a limit block (59), a tension spring (58) is fixed between the limit block (59) and the rotating gear (53), and the tension spring (58) is sleeved on the surface of the slide rod (56); The warning component (6) comprises a connecting rod (61) fixed to one end of the limit block (59), a pressing plate (62) being fixed to one end of the connecting rod (61), an air bag (63) being attached to the bottom surface of the pressing plate (62), the air bag (63) being mounted on the rotating gear (53), one end of the air bag (63) being connected to an air supply pipe (64), one end of the air supply pipe (64) penetrating the rotating gear (53) and the protective cover (51) and extending to the outside where a display component is provided; The display component comprises a connecting tube (65) connected to the gas delivery pipe (64), the connecting tube (65) being mounted on a side surface of the protective cover (51), a piston (66) being slidably connected inside the connecting tube (65), a contact block (67) being mounted on the top of the piston (66), an alarm (68) being arranged above the contact block (67), and a counter (69) being arranged at one end of the alarm (68) being located inside the connecting tube (65); The marking assembly (7) comprises a liquid storage bag (71) installed in the rotating gear (53), one end of the liquid storage bag (71) is connected to a delivery pipe (72), the end of the delivery pipe (72) passes through the rotating gear (53) and extends to the outside where a spray head (73) is fixed, the spray head (73) is provided with a valve (74), and one end of the spray head (73) points to the saw blade (3).

2. A cutting device for bearing steel according to claim 1, characterized in that: A rotating roller (10) is provided on the surface of the rotating shaft (52) via a belt drive, one end of the rotating roller (10) is rotatably connected to a fixed block (11) via a bearing, the fixed block (11) is fixed in the air outlet (13), and a fan blade (12) is fixed to one end of the rotating roller (10).

3. A cutting device for bearing steel according to claim 1, characterized in that: The top of the placement plate (2) is provided with symmetrically distributed clamping pieces (9).

4. A method for cutting bearing steel, using the cutting device for bearing steel according to claim 1, characterized in that: The main steps include: Step A: placing the workpiece to be cut on the placement plate (2) in advance, and before cutting, fixing and limiting the workpiece to be cut to avoid deviation; Step B: When cutting, the driving member (4) provided on the frame (1) is started to drive the saw blade (3) to rotate, and then the saw blade (3) is moved downward to perform a cutting operation at a corresponding cutting portion on the workpiece; Step C: During the cutting operation, the detection component (5) is used to detect the degree of wear of the cutting part of the saw blade (3) in the cutting state in real time. During the detection, the warning component (6) and the marking component (7) cooperate with each other to issue a warning to remind the staff to replace and repair when the wear value exceeds the set value, and the worn part is marked at the same time.

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