Cutting device for automobile bearing production

Abstract

The invention relates to the technical field of bearing production, and provides a cutting device for automobile bearing production, which comprises a rack, the bottom end of the inner side of the rack is fixedly connected with a supporting seat, the top end of the inner side of the rack is fixedly connected with two cylinders, the output ends of the two cylinders are fixedly connected with a protective shell, and the inner side of the protective shell is rotatably connected with a cutter wheel. A motor is fixedly mounted at the top of the rack, a transmission mechanism is arranged on an output shaft of the motor, a first corrugated pipe is fixedly connected to the top end of the protective shell, a water supply mechanism is arranged at the top end of the first corrugated pipe, a dust suction hood is fixedly connected to one side of the protective shell, and a second corrugated pipe is fixedly connected to the top end of the dust suction hood; a dust collection mechanism is arranged at the top end of the second corrugated pipe. The cutter wheel and the bearing are rapidly cooled by spraying cooling water, heat generated by cutting is rapidly taken away, and the problems of local annealing of the bearing and overheating abrasion of the cutter wheel are prevented.

Description

Technical Field

[0001] This invention relates to the field of bearing manufacturing technology, and more specifically, to a cutting device for automobile bearing manufacturing. Background Technology

[0002] As a critical transmission component, automotive bearings must meet requirements for high precision, high hardness, and wear resistance (such as bearing steel GCr15). During their production, the cutting process directly affects the dimensional accuracy (micron-level tolerance) and material properties of the bearing rings / rollers (avoiding annealing softening). There are various automotive bearing cutting devices in the prior art. For example, Chinese Patent Publication No. CN211276741U discloses "a cutting device for automotive bearing production, including a table and a bracket fixedly connected to the bottom of the table. A support rod is fixedly connected to the top of the table, and a support plate is fixedly connected to the top of the support rod. A housing is fixedly connected to the bottom of the table. A slide rail is fixedly connected to the center of the top of the table, and a first slider is slidably connected to the top of the slide rail. A first hydraulic push rod is fixedly connected to the top of the first slider, and columnar clamping blocks are fixedly connected to the top of both the first slider and the first hydraulic push rod". However, existing cutting technologies have the following core problems: First, the intense friction between the cutting wheel and the steel during cutting generates high temperatures, which can easily create a heat-affected zone at the cut, causing localized annealing of the bearing steel and reducing the hardness of the bearing; at the same time, the increased wear of the cutting tool affects its service life. Secondly, during the cutting process, metal chips splash and accumulate in the cutting area. The scattered chips mix with the air, causing pollution, which can harm workers' health and pollute the workshop environment. At the same time, the accumulation of chips can affect the cutting accuracy.

[0003] In view of this, the present invention proposes a cutting device for automobile bearing production. Summary of the Invention

[0004] This invention proposes a cutting device for automobile bearing production, which solves the problem in the prior art where the increased cutting temperature during the cutting process leads to localized annealing of the bearing and a decrease in hardness.

[0005] The technical solution of the present invention is as follows: A cutting device for automobile bearing production includes a frame. A support base for placing bearings is fixedly connected to the bottom of the inner side of the frame. Positioning mechanisms for fixing the bearings are provided at both ends of the top of the support base. Two cylinders are fixedly connected to the top of the inner side of the frame. A protective shell is fixedly connected to the output ends of the two cylinders. A cutting wheel is rotatably connected to the inner side of the protective shell. A motor is fixedly installed on the top of the frame. A transmission mechanism for driving the cutting wheel to rotate is provided on the output shaft of the motor. A first bellows is fixedly connected to the top of the protective shell. A water supply mechanism for introducing cooling water into the first bellows by cooperating with the start of the motor is provided at the top of the first bellows. A dust suction hood is fixedly connected to one side of the protective shell. A second bellows is fixedly connected to the top of the dust suction hood. A dust suction mechanism for sucking out the chips inside the air guide hood by the start of the motor is provided at the top of the second bellows.

[0006] Preferably, the top of the support base is a concave arc surface structure, and a cutting groove that slides with the cutting wheel is formed on the concave arc surface of the support base.

[0007] Preferably, a water storage cavity is provided on the inner side of the support base, and a plurality of evenly distributed water leakage holes are provided on the concave arc surface of the support base. A recycling pipe communicating with the inside of the water storage cavity is fixedly connected to one side of the support base.

[0008] Preferably, the transmission mechanism includes a mounting box fixedly connected to the side wall of the protective housing, a first bevel gear fixedly coaxially with the cutter wheel and rotatably connected to the inner side of the mounting box, a rotating shaft passing through the side wall of the mounting box and rotatably connected to the top of the mounting box, a second bevel gear meshing with the first bevel gear and fixedly connected to the bottom end of the rotating shaft, and a telescopic shaft fixedly connected to the top end of the rotating shaft through a coupling, the top end of the telescopic shaft being fixedly connected to the output shaft of the motor.

[0009] Preferably, the telescopic shaft includes a sleeve shaft fixedly connected to the output shaft of the motor, an insert shaft is inserted into the bottom end of the sleeve shaft, the bottom end of the insert shaft is fixedly connected to the rotating shaft, a limit strip is fixedly connected to the outer side of the insert shaft, a limit groove is formed on the inner wall of the sleeve shaft, and the limit strip and the limit groove are clearance-fitted.

[0010] Preferably, the water supply mechanism includes a water tank fixedly connected to the top of the frame, a first water guide pipe fixedly connected to the outlet end of the water tank, a second water guide pipe fixedly connected to the top end of the first corrugated pipe, and a negative pressure component provided between the second water guide pipe and the first water guide pipe.

[0011] Preferably, the negative pressure assembly includes a cylinder fixedly connected to the top of the frame. One end of the cylinder is slidably connected to a slide rod that penetrates the side wall of the cylinder. One end of the slide rod is fixedly connected to a piston, which is slidably connected to the inner wall of the cylinder. The inlet end of the cylinder is fixedly connected to a water inlet check valve, the inlet end of which is connected to a first water guide pipe. The outlet end of the cylinder is fixedly connected to an outlet check valve, the outlet end of which is connected to a second water guide pipe. The other end of the slide rod is provided with a linkage component that drives the slide rod to slide back and forth by cooperating with the start of a motor.

[0012] Preferably, the linkage includes a reciprocating lead screw rotatably connected to the top of the frame, a movable plate threaded onto the reciprocating lead screw, the top end of the movable plate being fixedly connected to the end of the slide rod, a third bevel gear being fixedly connected to one end of the reciprocating lead screw, and a fourth bevel gear meshing with the third bevel gear being fixedly connected to the output shaft of the motor.

[0013] Preferably, the dust collection mechanism includes a blower box fixedly connected to the top of the frame, a suction impeller rotatably connected to one end of the blower box, a dust collection pipe fixedly connected to the air inlet of the blower box, the inlet end of the dust collection pipe being connected to a second corrugated pipe, a fifth bevel gear fixedly coaxially with the suction impeller rotatably connected to the outside of the blower box, the fifth bevel gear meshing with a fourth bevel gear, a filter screen fixedly connected to the inside of the blower box, and several evenly distributed exhaust holes opened on one side of the blower box.

[0014] Preferably, the positioning mechanism includes a mounting bracket fixedly connected to the top of the support base. A screw rod is threaded through the mounting bracket in the middle. A handwheel is fixedly connected to the top of the screw rod. An arc-shaped pressure plate is rotatably connected to the bottom of the screw rod. Slide grooves are provided at both ends of the mounting bracket in the vertical direction. The two ends of the arc-shaped pressure plate are slidably connected to the inner wall of the corresponding slide groove.

[0015] The working principle and beneficial effects of this invention are as follows: 1. Through the linkage design of the water supply mechanism and the negative pressure component, the motor drives the piston to reciprocate, realizing the intermittent spraying of cooling water. The cooling water reaches the cutting area of ​​the cutter wheel directly through the first corrugated pipe, quickly removing frictional heat and preventing the bearing steel from annealing due to local high temperature, thus maintaining the material's hardness and wear resistance. At the same time, the cooling water continuously reduces the working temperature of the cutter wheel, reducing the oxidation and wear of the tungsten carbide blade during high-speed cutting and extending the service life of the cutter wheel.

[0016] 2. The dust collection mechanism is linked with the motor through the fifth bevel gear, which drives the suction impeller to generate negative pressure, and sucks the dust in the cutting area into the air box (131) through the dust collection hood and the second corrugated pipe. The filter screen blocks the metal dust, avoids the dispersion of submicron iron filings, and protects the breathing safety of workers.

[0017] 3. A single motor drives the cutting transmission, cooling water supply and dust collection simultaneously through the fourth bevel gear, reducing the need for additional power sources and greatly reducing energy consumption. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of a cutting device for automobile bearing production according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a cutting device for automobile bearing production according to the present invention. Figure 2 ; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the support base of the present invention; Figure 5 This is a schematic diagram of the transmission mechanism of the present invention; Figure 6 This is a schematic diagram of the telescopic shaft of the present invention; Figure 7 This is a schematic diagram of the water supply mechanism of the present invention; Figure 8 This is a schematic diagram of the negative pressure component of the present invention; Figure 9 This is a schematic diagram of the dust collection mechanism of the present invention; Figure 10 This is a schematic diagram of the positioning mechanism of the present invention.

[0020] In the diagram: 1. Frame; 2. Support base; 21. Cutter groove; 22. Drain hole; 23. Water storage chamber; 24. Recovery pipe; 3. Positioning mechanism; 31. Mounting bracket; 32. Screw; 33. Arc-shaped pressure plate; 34. Handwheel; 35. Slide groove; 4. Cylinder; 5. Protective housing; 6. Cutter wheel; 7. Motor; 8. Transmission mechanism; 81. Mounting box; 82. First bevel gear; 83. Rotating shaft; 84. Second bevel gear; 85. Telescopic shaft; 851. Sleeve shaft; 852. Insert shaft; 853. Limiting strip; 854. Limiting groove; 9. First bellows; 10. Water supply mechanism; 01. Water tank; 102. First water guide pipe; 103. Second water guide pipe; 104. Negative pressure assembly; 1041. Cylinder; 1042. Slide rod; 1043. Piston; 1044. Inlet check valve; 1045. Outlet check valve; 1046. Reciprocating screw; 1047. Movable plate; 1048. Third bevel gear; 1049. Fourth bevel gear; 11. Air guide hood; 12. Second bellows; 13. Dust collection mechanism; 131. Air box; 132. Suction impeller; 133. Suction pipe; 134. Fifth bevel gear; 135. Filter screen; 136. Exhaust port. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-10 As shown, this embodiment proposes a cutting device for automobile bearing production, including a frame 1. A support base 2 for placing bearings is fixedly connected to the bottom of the inner side of the frame 1. Positioning mechanisms 3 for fixing the bearings are provided at both ends of the top of the support base 2. Two cylinders 4 are fixedly connected to the top of the inner side of the frame 1. A protective shell 5 is fixedly connected to the output end of the two cylinders 4. A cutting wheel 6 is rotatably connected to the inner side of the protective shell 5. A motor 7 is fixedly installed on the top of the frame 1. A transmission mechanism 8 for driving the cutting wheel 6 to rotate is provided on the output shaft of the motor 7. A first bellows 9 is fixedly connected to the top of the protective shell 5. A water supply mechanism 10 for introducing cooling water into the first bellows 9 by cooperating with the start of the motor 7 is provided at the top of the first bellows 9. A dust suction hood 11 is fixedly connected to one side of the protective shell 5. A second bellows 12 is fixedly connected to the top of the dust suction hood 11. A dust suction mechanism 13 for sucking out the chips inside the air guide hood 11 by the start of the motor 7 is provided at the top of the second bellows 12.

[0023] By placing the bearing inside the support seat 2 and fixing it with two positioning mechanisms 3, the motor 7 is started to drive the transmission mechanism 8 to rotate the cutter wheel 6. Then, the two cylinders 4 are controlled to move the protective shell 5 downwards, so that the cutter wheel 6 contacts the bearing and cuts it. At the same time, the water supply mechanism 10 introduces cooling water into the first bellows 9 and then introduces the cooling water into the protective shell 5 through the first bellows 9, so that the cooling water is sprayed on the surface of the cutter wheel 6. This can quickly cool down the cutter wheel 6 and the bearing, quickly remove the heat generated by cutting, and prevent the bearing from local annealing (hardness reduction) and the cutter wheel 6 from overheating and wearing. At the same time, the cooling water can flush away the chips and prevent the chips from accumulating and affecting the cutting and accuracy. During the cutting process, the dust extraction mechanism 13 can suck out the chips inside the air guide shroud 11, thus removing the flying chips and preventing them from scattering into the air and causing pollution.

[0024] Furthermore, the positioning mechanism 3 includes a mounting bracket 31 fixedly connected to the top of the support base 2. A screw 32 is threadedly connected to the middle of the mounting bracket 31 and passes through the mounting bracket 31. A handwheel 34 is fixedly connected to the top of the screw 32 and an arc-shaped pressure plate 33 is rotatably connected to the bottom of the screw 32. Both ends of the mounting bracket 31 are provided with sliding grooves 35 in the vertical direction. Both ends of the arc-shaped pressure plate 33 are slidably connected to the inner wall of the corresponding sliding groove 35.

[0025] By rotating the handwheel 34, the screw 32 and the mounting bracket 31 rotate relative to each other. This allows the screw 32 to move downward, causing the arc-shaped pressure plate 33 to slide downward and contact the bearing. The arc-shaped pressure plate 33 applies pressure to the bearing and keeps it fixed, thus ensuring the stability of the bearing during the cutting process.

[0026] Furthermore, the top of the support base 2 is a concave arc surface structure, and a cutting groove 21 is formed on the concave arc surface of the support base 2 to slide and engage with the cutting wheel 6. The concave design of the support base 2 can fit closely with the bearing, thereby increasing the support area and improving stability; the design of the cutting groove 21 provides cutting space for the cutting wheel 6, so that the bearing can be completely cut off.

[0027] Furthermore, a water storage cavity 23 is provided on the inner side of the support base 2, and several evenly distributed water leakage holes 22 are provided on the concave arc surface of the support base 2. A recycling pipe 24 communicating with the inside of the water storage cavity 23 is fixedly connected to one side of the support base 2.

[0028] The drain hole 22 can guide cooling water into the water storage chamber 23 for centralized storage, and then the cooling water can be discharged through the recovery pipe 24 for filtration and reuse, which can greatly reduce the waste of water resources.

[0029] Furthermore, the transmission mechanism 8 includes a mounting box 81 fixedly connected to the side wall of the protective housing 5. A first bevel gear 82, coaxially fixed with the cutter wheel 6, is rotatably connected to the inside of the mounting box 81. A rotating shaft 83, penetrating the side wall of the mounting box 81, is rotatably connected to the top of the mounting box 81. A second bevel gear 84, meshing with the first bevel gear 82, is fixedly connected to the bottom of the rotating shaft 83. A telescopic shaft 85 is fixedly connected to the top of the rotating shaft 83 via a coupling. The top of the telescopic shaft 85 is fixedly connected to the output shaft of the motor 7.

[0030] By starting the motor 7, the telescopic shaft 85 is driven to rotate, causing the rotating shaft 83 to rotate synchronously. This causes the second bevel gear 84 to rotate, which in turn drives the cutter wheel 6 to rotate. Then, the two cylinders 4 are controlled to move the protective shell 5 downward as a whole, so that the cutter wheel 6 contacts the bearing downward, thereby realizing the cutting work of the bearing.

[0031] Furthermore, the telescopic shaft 85 includes a sleeve shaft 851 fixedly connected to the output shaft of the motor 7. A plug shaft 852 is inserted into the bottom end of the sleeve shaft 851, and the bottom end of the plug shaft 852 is fixedly connected to the rotating shaft 83. A limit strip 853 is fixedly connected to the outer side of the plug shaft 852. A limit groove 854 is formed on the inner wall of the sleeve shaft 851, and the limit strip 853 and the limit groove 854 are in clearance fit. The design of the limit strip 853 ensures that the sleeve shaft 851 and the plug shaft 852 maintain synchronous rotation during relative sliding, thereby ensuring stable power transmission of the motor 7 and improving overall transmission efficiency.

[0032] Furthermore, the water supply mechanism 10 includes a water tank 101 fixedly connected to the top of the frame 1. A first water guide pipe 102 is fixedly connected to the outlet end of the water tank 101, and a second water guide pipe 103 is fixedly connected to the top end of the first corrugated pipe 9. A negative pressure assembly 104 is provided between the second water guide pipe 103 and the first water guide pipe 102. The negative pressure assembly 104 includes a cylinder 1041 fixedly connected to the top of the frame 1. A slide rod 1042 penetrating the side wall of the cylinder 1041 is slidably connected to one end of the cylinder 1041. A piston 1043 is fixedly connected to one end of the slide rod 1042. The piston 1043 is slidably connected to the inner wall of the cylinder 1041. A water inlet check valve 1044 is fixedly connected to the inlet end of the cylinder 1041. The inlet end of the cylinder 1041 is connected to the first water guide pipe 102. The outlet end of the cylinder 1041 is fixedly connected to the outlet one-way valve 1045. The outlet end of the outlet one-way valve 1045 is connected to the second water guide pipe 103. The other end of the slide rod 1042 is provided with a linkage component that drives the slide rod 1042 to slide back and forth by cooperating with the start of the motor 7. The linkage component includes a reciprocating screw 1046 rotatably connected to the top of the frame 1. A movable plate 1047 is threaded on the reciprocating screw 1046. The top end of the movable plate 1047 is fixedly connected to the end of the slide rod 1042. A third bevel gear 1048 is fixedly connected to one end of the reciprocating screw 1046. The output shaft of the motor 7 is also fixedly connected to a fourth bevel gear 1049 that meshes with the third bevel gear 1048.

[0033] During the cutting process, the motor 7 simultaneously drives the fourth bevel gear 1049 to rotate, causing the third bevel gear 1048 to rotate synchronously. This causes the reciprocating screw 1046 to rotate, causing the movable plate 1047 to reciprocate along the axis of the reciprocating screw 1046. This causes the reciprocating screw 1046 to drive the piston 1043 to slide back and forth inside the cylinder 1041, thereby causing the pressure inside the cylinder 1041 to periodically decrease and increase. When the internal pressure of the cylinder 1041 decreases, the inlet check valve 1044 can guide the cooling water inside the water tank 101 into the cylinder 1041 through the first water guide pipe 102; when the internal pressure of the cylinder 1041 increases, the outlet check valve 1045 can guide the cooling water inside the cylinder 1041 into the first bellows 9 through the second water guide pipe 103. This cycle continues, with the second water guide pipe 103 intermittently guiding water into the first bellows 9, and then guiding the cooling water into the protective shell 5 through the first bellows 9, so that the cooling water is sprayed on the surface of the cutter wheel 6. This can quickly cool down the cutter wheel 6 and the bearing, quickly remove the heat generated by cutting, and prevent the bearing from local annealing (hardness reduction) and the cutter wheel 6 from overheating and wearing. At the same time, the cooling water can flush away the chips, preventing the chips from accumulating and affecting the cutting and precision. Because the first corrugated pipe 9 intermittently guides water into the protective shell 5, the amount of water used during the cutting process can be reduced, avoiding the waste of water resources caused by continuous water supply.

[0034] Furthermore, the dust collection mechanism 13 includes a bellows 131 fixedly connected to the top of the frame 1. One end of the bellows 131 is rotatably connected to a suction impeller 132. The air inlet of the bellows 131 is fixedly connected to a dust collection pipe 133. The inlet end of the dust collection pipe 133 is connected to the second corrugated pipe 12. The outer side of the bellows 131 is rotatably connected to a fifth bevel gear 134 that is coaxially fixed with the suction impeller 132. The fifth bevel gear 134 meshes with the fourth bevel gear 1049. The inner side of the bellows 131 is fixedly connected to a filter screen 135. Several evenly distributed exhaust holes 136 are opened on one side of the bellows 131.

[0035] During the cutting process, the motor 7 simultaneously drives the fourth bevel gear 1049 to rotate, causing the fifth bevel gear 134 to rotate synchronously, which in turn causes the suction impeller 132 to rotate. This reduces the pressure at the air inlet of the air box 131, creating a negative pressure state inside the suction pipe 133. This also creates a negative pressure state inside the second corrugated pipe 12 and the suction hood 11. This allows the suction hood 11 to suck in the scattered chips and guide them into the air box 131 through the second corrugated pipe 12 and the suction pipe 133. The chips then accumulate inside the filter screen 135, preventing the scattered chips from polluting the air.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cutting device for automobile bearing production, characterized in that, include Rack (1); A support seat (2) is fixedly connected to the bottom end of the frame (1) and is used to place the bearing. Two positioning mechanisms (3) are provided at both ends of the top of the support base (2) and are used to fix the bearing. Two cylinders (4) are fixedly connected to the top of the frame (1); A protective housing (5) is fixedly connected to the output end of the two cylinders (4); Rotate the cutter wheel (6) connected to the inside of the protective housing (5); A motor (7) is fixedly installed on the top of the frame (1); A transmission mechanism (8) is provided on the output shaft of the motor (7) and is used to drive the cutter wheel (6) to rotate. The first bellows (9) is fixedly connected to the top of the protective shell (5); A water supply mechanism (10) is provided at the top of the first bellows (9) and introduces cooling water into the first bellows (9) by cooperating with the start of the motor (7). A dust collection hood (11) is fixedly connected to one side of the protective housing (5); A second corrugated pipe (12) is fixedly connected to the top of the dust collection hood (11); A dust extraction mechanism (13) is set at the top of the second corrugated pipe (12) and sucks out the chips inside the air guide shroud (11) by starting the motor (7).

2. The cutting device for automobile bearing production according to claim 1, characterized in that, The top of the support base (2) is a concave arc surface structure, and a cutting groove (21) that slides with the cutting wheel (6) is provided on the concave arc surface of the support base (2).

3. The cutting device for automobile bearing production according to claim 2, characterized in that, The support base (2) has a water storage cavity (23) on its inner side, and a number of evenly distributed water leakage holes (22) are provided on the concave arc surface of the support base (2). A recycling pipe (24) communicating with the inside of the water storage cavity (23) is fixedly connected to one side of the support base (2).

4. The cutting device for automobile bearing production according to claim 1, characterized in that, The transmission mechanism (8) includes a mounting box (81) fixedly connected to the side wall of the protective housing (5). The inner side of the mounting box (81) is rotatably connected to a first bevel gear (82) fixed coaxially with the cutter wheel (6). The top of the mounting box (81) is rotatably connected to a rotating shaft (83) that passes through the side wall of the mounting box (81). The bottom end of the rotating shaft (83) is fixedly connected to a second bevel gear (84) that meshes with the first bevel gear (82). The top end of the rotating shaft (83) is fixedly connected to a telescopic shaft (85) through a coupling. The top end of the telescopic shaft (85) is fixedly connected to the output shaft of the motor (7).

5. A cutting device for automobile bearing production according to claim 4, characterized in that, The telescopic shaft (85) includes a sleeve shaft (851) fixedly connected to the output shaft of the motor (7). A plug shaft (852) is inserted into the bottom end of the sleeve shaft (851). The bottom end of the plug shaft (852) is fixedly connected to the rotating shaft (83). A limit strip (853) is fixedly connected to the outside of the plug shaft (852). A limit groove (854) is opened on the inner wall of the sleeve shaft (851). The limit strip (853) and the limit groove (854) are in clearance fit.

6. The cutting device for automobile bearing production according to claim 1, characterized in that, The water supply mechanism (10) includes a water tank (101) fixedly connected to the top of the frame (1), a first water guide pipe (102) fixedly connected to the outlet end of the water tank (101), a second water guide pipe (103) fixedly connected to the top end of the first corrugated pipe (9), and a negative pressure component (104) provided between the second water guide pipe (103) and the first water guide pipe (102).

7. A cutting device for automobile bearing production according to claim 6, characterized in that, The negative pressure assembly (104) includes a cylinder (1041) fixedly connected to the top of the frame (1). One end of the cylinder (1041) is slidably connected to a slide rod (1042) that penetrates the side wall of the cylinder (1041). One end of the slide rod (1042) is fixedly connected to a piston (1043). The piston (1043) is slidably connected to the inner wall of the cylinder (1041). The inlet end of the cylinder (1041) is fixedly connected to a water inlet valve. The inlet of the inlet check valve (1044) is connected to the first water guide pipe (102), and the outlet of the cylinder (1041) is fixedly connected to the outlet check valve (1045). The outlet of the outlet check valve (1045) is connected to the second water guide pipe (103). The other end of the slide rod (1042) is provided with a linkage component that drives the slide rod (1042) to slide back and forth by cooperating with the start of the motor (7).

8. A cutting device for automobile bearing production according to claim 7, characterized in that, The linkage includes a reciprocating screw (1046) rotatably connected to the top of the frame (1), a movable plate (1047) threadedly connected to the reciprocating screw (1046), the top end of the movable plate (1047) being fixedly connected to the end of the slide rod (1042), a third bevel gear (1048) being fixedly connected to one end of the reciprocating screw (1046), and a fourth bevel gear (1049) meshing with the third bevel gear (1048) being fixedly connected to the output shaft of the motor (7).

9. A cutting device for automobile bearing production according to claim 8, characterized in that, The dust collection mechanism (13) includes a bellows (131) fixedly connected to the top of the frame (1). One end of the bellows (131) is rotatably connected to a suction impeller (132). The air inlet of the bellows (131) is fixedly connected to a dust collection pipe (133). The inlet end of the dust collection pipe (133) is connected to a second corrugated pipe (12). The outer side of the bellows (131) is rotatably connected to a fifth bevel gear (134) that is coaxially fixed with the suction impeller (132). The fifth bevel gear (134) meshes with a fourth bevel gear (1049). The inner side of the bellows (131) is fixedly connected to a filter screen (135). A number of evenly distributed exhaust holes (136) are opened on one side of the bellows (131).

10. A cutting device for automobile bearing production according to claim 1, characterized in that, The positioning mechanism (3) includes a mounting bracket (31) fixedly connected to the top of the support base (2). A screw (32) is threaded through the mounting bracket (31) in the middle. A handwheel (34) is fixedly connected to the top of the screw (32). An arc-shaped pressure plate (33) is rotatably connected to the bottom of the screw (32). Both ends of the mounting bracket (31) are provided with sliding grooves (35) in the vertical direction. Both ends of the arc-shaped pressure plate (33) are slidably connected to the inner wall of the corresponding sliding groove (35).

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