Outer ring grinding equipment for bearing steel ring machining

Abstract

The invention discloses outer ring grinding equipment for bearing steel ring machining, and belongs to the technical field of bearing machining. The device comprises a machine table, a grinding mechanism is arranged above the machine table, and the grinding mechanism comprises a grinding wheel and a driving assembly used for driving the grinding wheel to rotate and move; a bearing plate is fixedly mounted in the center of the top of the machine table, a limiting mechanism used for limiting a bearing outer ring is arranged on the edge of the top of the bearing plate, a plurality of cooling runners are formed in the middle of the bearing plate, and cooling nozzles are fixedly mounted in the cooling runners. The cooling nozzle is arranged below the bearing outer ring, in the polishing process of the bearing outer ring, cooling liquid is conveyed upwards from the lower portion to cool the bearing outer ring, and therefore the problem that cooling liquid conveying equipment arranged above interferes with operation of a polishing mechanism, and consequently the cooling liquid cannot be stably conveyed in the direction of the bearing outer ring is solved.

Description

Technical Field

[0001] This invention relates to the field of bearing processing technology, and in particular to an outer ring grinding device for processing bearing steel rings. Background Technology

[0002] In bearing grinding, burns are the most common and damaging defect. Burns occur during grinding due to localized overheating, causing irreversible microstructural changes in the surface metal (such as tempering or secondary quenching to form brittle martensite). This is usually accompanied by a decrease in surface hardness and the generation of residual tensile stress. Minor burns are invisible to the naked eye and must be detected through pickling or eddy current testing. Severe burns, such as microcracks, become fatigue sources, continuously propagating during bearing operation and ultimately leading to bearing ring fracture or material spalling.

[0003] The conventional approach is to spray coolant into the grinding zone to cool the grinding wheel and workpiece during the grinding process. However, due to the high-pressure air barrier and high-speed chip flow formed between the grinding wheel and workpiece during grinding, the coolant cannot effectively penetrate the grinding zone, causing a rapid accumulation of heat and making it difficult to achieve uniform cooling. Therefore, it is necessary to propose an improvement. Summary of the Invention

[0004] This invention provides an outer ring grinding device for machining bearing steel rings, which can solve the problem of difficulty in achieving uniform cooling during bearing grinding in the prior art.

[0005] This invention provides a grinding device for outer ring of bearing steel ring, including a machine base, a grinding mechanism above the machine base, the grinding mechanism including a grinding wheel and a drive assembly for driving the grinding wheel to rotate and move; a support plate is fixedly installed at the top center of the machine base, a limiting mechanism for limiting the bearing outer ring is provided at the top edge of the support plate, and a plurality of cooling channels are opened in the middle of the support plate, and cooling nozzles are fixedly installed inside the plurality of cooling channels.

[0006] As a further aspect of the present invention: the limiting mechanism includes a plurality of limiting components arranged at equal angles, each limiting component including a displacement groove, a transverse frame slidably connected to the top of the inner wall of the displacement groove, a limiting stop fixedly connected to one end of the top of the transverse frame, a linear motor fixedly installed at the bottom of the inner wall of the displacement groove, and the output end of the linear motor fixedly connected to the bottom of the transverse frame.

[0007] As a further aspect of the present invention: a rotary pressing cylinder is fixedly installed on the top of the limiting stop bar, a pressing limiting block is fixedly connected to the output end of the rotary pressing cylinder, and a pressure sensor is fixedly installed inside the pressing limiting block.

[0008] As a further aspect of the present invention: the top outer ring of the grinding wheel is fixedly connected with a plurality of inclined guide teeth, and a gap is provided at one end of the guide teeth near the edge of the grinding wheel, the width of the gap being greater than the groove depth of the bearing outer ring.

[0009] As a further aspect of the present invention: the inner ring of the top of the grinding wheel is provided with a return groove, and the outer wall of the grinding wheel is provided with a plurality of equally spaced guide grooves, all of which are inclined and communicate with the return cavity.

[0010] As a further embodiment of the present invention: an air guide shroud is provided above the grinding wheel, an air outlet groove is provided on the bottom edge of the air guide shroud, an air guide pipe is fixedly connected to one side of the air guide shroud, and one end of the air guide pipe is fixedly connected to the output end of an external air pump.

[0011] As a further aspect of the present invention: a cleaning groove is provided at the bottom of the air guide shroud, the inner cavity of the cleaning groove is the same size as the grinding wheel, and a cleaning air outlet is provided at the top of the inner wall of the cleaning groove, the cleaning air outlet being correspondingly provided to the top of the grinding wheel.

[0012] As a further aspect of the present invention: a distribution plate is provided below the support plate, a plurality of distribution nozzles are fixedly connected to the top of the distribution plate, one end of each of the plurality of distribution nozzles is connected to a plurality of cooling nozzles, a control valve is fixedly installed in the middle of each of the plurality of distribution nozzles, and the bottom of the distribution plate is connected to an external coolant delivery device through a connecting pipe.

[0013] As a further embodiment of the present invention: a return groove is provided at the top center of the support plate, the inner wall of the return groove is inclined, a guide groove is provided on one side of the top of several cooling channels, one end of several guide grooves is connected to the inner wall of the return groove, and a return pipe is fixedly connected to the bottom of the inner wall of the return groove.

[0014] As a further aspect of the present invention: a baffle plate is fixedly connected to the top edge of the machine platform, a slag discharge port is opened on the edge of the support plate, a collection pipe is fixedly connected to the bottom of the slag discharge port, and a filtration and cleaning device is provided at one end of the collection pipe.

[0015] As a further embodiment of the present invention: the drive assembly includes a mounting frame, a longitudinal guide rail is fixedly mounted on the bottom of the mounting frame, a motor base is slidably mounted inside the longitudinal guide rail, a directional motor is fixedly mounted on the bottom of the motor base, a directional turntable is fixedly connected to the output end of the directional motor, a mounting base is located on one side of the bottom of the directional turntable, a mounting sleeve is fixedly mounted on the bottom of the mounting base, a grinding motor is fixedly mounted inside the mounting sleeve, a drive base plate is fixedly connected to the output end of the grinding motor, a drive shaft is fixedly connected to the bottom of the drive base plate, and the bottom of the drive shaft is fixedly connected to the middle of the grinding wheel.

[0016] As a further aspect of the present invention: a friction pad is fixedly connected to the top of the drive base plate, and a plurality of pressing push rods are arranged above the drive base plate, with pressing limit blocks fixedly connected to the output ends of the plurality of pressing push rods.

[0017] As a further embodiment of the present invention: a drive frame is fixedly installed on one side of the top of the machine base, a transverse guide rail is fixedly installed on one side of the drive frame, a transverse seat is slidably installed on the inner wall of the transverse guide rail, a lifting guide rail is fixedly installed on one side of the transverse seat, and the mounting frame is slidably disposed on the inner wall of the lifting guide rail.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: By placing the cooling nozzles below the outer ring of the bearing, the coolant is delivered from below to cool the outer ring during the grinding process. This avoids the problem of interference between the coolant delivery device placed above and the operation of the grinding mechanism, which would prevent the stable delivery of coolant to the outer ring. Simultaneously, the coolant delivered from below can be temporarily stored in the cavity formed by the outer ring and the support plate, gradually filling and overflowing across the entire inner and outer surfaces of the outer ring as the coolant is delivered and the grinding wheel rotates, thus achieving uniform cooling of the outer ring. Furthermore, by using several cooling nozzles to deliver coolant from different positions, the problem of the outer ring blocking part of the cooling channels, preventing coolant delivery, is avoided. Independent control of several cooling nozzles achieves uniform distribution of coolant in all directions, further improving the temperature uniformity of the outer ring. This invention utilizes inclined guide teeth on the outer ring of the top of the grinding wheel. The rotation of the grinding wheel drives these guide teeth to rotate, pushing the coolant towards the edge of the grinding wheel's top surface. This coolant enters the space between the top surface of the grinding wheel and the inner wall of the bearing's outer ring, ensuring full contact between the coolant and the inner wall of the bearing's outer ring and guaranteeing uniform cooling. Simultaneously, by creating guide grooves and return grooves on the grinding wheel, the rotation of the grinding wheel drives the coolant into the guide grooves and out through the return grooves, achieving sufficient cooling of the inner layer of the grinding wheel and effectively reducing the temperature of the grinding wheel itself. This invention introduces airflow into the air shroud through a duct and then out through the air outlet, forming an air curtain around the grinding wheel to block and constrain the scattered coolant, causing the coolant to concentrate near the outer ring of the bearing and improving the utilization efficiency of the coolant. At the same time, the airflow from the cleaning air outlet blows directly onto the top of the grinding wheel to remove and clean the coolant and debris adhering to the grinding wheel, thus cleaning the grinding wheel after grinding. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram showing the position and structure of the support plate of the present invention; Figure 3 This is a three-dimensional schematic diagram of the grinding wheel of the present invention; Figure 4 This is a top cross-sectional view of the grinding wheel of the present invention; Figure 5 This is a schematic diagram of the grinding structure of the present invention; Figure 6 This is a cross-sectional schematic diagram of the mounting sleeve of the present invention; Figure 7 This is a schematic diagram showing the location of the cleaning air outlet of the present invention; Figure 8 This is a frontal cross-sectional view of the machine tool of the present invention.

[0020] Explanation of reference numerals in the attached figures: 101. Machine base; 102. Baffle plate; 103. Drive frame; 104. Support plate; 105. Cooling channel; 106. Cooling nozzle; 107. Return pipe; 108. Guide channel; 109. Limiting assembly; 1091. Linear motor; 1092. Transverse frame; 1093. Limiting stop bar; 1094. Rotary pressing cylinder; 1095. Pressing limit block; 110. Flow splitting nozzle; 111. Flow splitting plate; 112. Connecting pipe; 113. Collection pipe; 114. Slag discharge port; 2. Grinding mechanism; 201. Mounting frame; 20 2. Directional motor; 203. Directional turntable; 204. Mounting base; 205. Mounting sleeve; 206. Drive shaft; 207. Grinding motor; 208. Fixing bracket; 209. Pressing push rod; 210. Pressing limit block; 211. Drive base plate; 212. Friction pad; 213. Longitudinal guide rail; 214. Motor base; 301. Grinding wheel; 302. Drainage channel; 303. Return channel; 304. Drainage tooth; 401. Air guide cover; 402. Air outlet channel; 403. Cleaning air outlet; 404. Air guide duct; 5. Bearing outer ring. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0022] like Figure 1 As shown in the figure, the present invention provides a grinding device for outer ring processing of bearing steel rings, including a machine base 101. A grinding mechanism 2 is arranged above the machine base 101. The grinding mechanism 2 includes a grinding wheel 301 and a driving assembly for driving the grinding wheel 301 to rotate and move. A support plate 104 for placing the bearing outer ring 5 is fixedly installed at the top center of the machine base 101. Please refer to [link to relevant documentation]. Figure 2 The top edge of the support plate 104 is provided with a limiting mechanism for limiting the bearing outer ring 5. Several cooling channels 105 are opened in the middle of the support plate 104, and cooling nozzles 106 are fixedly installed inside the cooling channels 105. By setting the cooling nozzles 106 below the bearing outer ring 5, the coolant is delivered from below to cool the bearing outer ring 5 during the grinding process. The resulting technical effects are as follows: First, it avoids the problem of interference between the coolant delivery equipment set from above and the operation of the grinding mechanism 2, which would prevent the coolant from being stably delivered to the bearing outer ring 5. Meanwhile, the coolant delivered from below can be temporarily stored in the cavity formed by the bearing outer ring 5 and the support plate 104. As the coolant is delivered and the grinding wheel 301 rotates, it gradually fills and overflows over the entire inner and outer surfaces of the bearing outer ring 5, thereby achieving uniform cooling of the bearing outer ring 5. Furthermore, by using several cooling nozzles 106 to deliver coolant from different positions, the problem of the bearing outer ring 5 blocking part of the cooling channel 105 and causing the coolant to be unable to be delivered is avoided. By independently controlling several cooling nozzles 106, uniform distribution of coolant in all directions is achieved, further improving the temperature uniformity of the bearing outer ring 5.

[0023] Please see Figure 3 The top outer ring of the grinding wheel 301 is fixedly connected with several inclined guide teeth 304. The rotation of the grinding wheel 301 drives the guide teeth 304 to rotate, pushing the coolant to the edge of the top surface of the grinding wheel 301 and into the space between the top surface of the grinding wheel 301 and the top surface of the inner wall of the bearing outer ring 5, so as to achieve full contact between the coolant and the inner wall of the bearing outer ring 5 and ensure uniform cooling. To avoid the presence of the guide tooth 304 interfering with the grinding of the bearing outer ring 5, a gap is provided at one end of the guide tooth 304 near the edge of the grinding wheel 301. The width of the gap is greater than the groove depth of the bearing outer ring 5. This avoids the problem of excessive grinding or damage to the guide tooth 304 caused by contact between the guide tooth 304 and the bearing outer ring 5 during the grinding process of the bearing outer ring 5 groove.

[0024] In one embodiment, see Figure 3 and Figure 4To effectively cool the grinding wheel 301 itself, a return groove 303 is provided on the inner ring of the top of the grinding wheel 301, and several equally spaced guide grooves 302 are provided on the outer wall of the grinding wheel 301. The guide grooves 302 are all inclined and connected to the return cavity. By rotating the grinding wheel 301, the coolant is driven into the guide grooves 302 and then sent out through the return grooves 303, so as to achieve sufficient cooling of the inner layer of the grinding wheel 301 and avoid the problem of easy damage to the internal material of the grinding wheel 301 due to working in a high temperature and high pressure environment for a long time.

[0025] In one embodiment, please participate Figure 5 and Figure 6 To reduce the splashing of coolant caused by the rotation of the grinding wheel 301 and the contamination of the top surface of the machine tool 101, and to improve the coolant recovery efficiency, this application provides an air guide shroud 401 above the grinding wheel 301. An air outlet groove 402 is provided at the bottom edge of the air guide shroud 401. An air guide pipe 404 is fixedly connected to one side of the air guide shroud 401. Specifically, an exhaust pipe is fixedly connected to one side of the air guide pipe 404. The port of the exhaust pipe is correspondingly set at the top of the air outlet groove 402. One end of the air guide pipe 404 is fixedly connected to the output end of an external air pump. Airflow is sent into the air guide shroud 401 through the air guide shroud 401 and then sent out through the air outlet groove 402, forming an air curtain around the grinding wheel 301 to block and constrain the scattered coolant, so that the coolant is concentrated near the outer ring 5 of the bearing, thereby improving the utilization efficiency of the coolant.

[0026] In one embodiment, please participate Figure 6 and Figure 7 To clean the grinding wheel 301 after grinding, a cleaning groove is provided at the bottom of the air guide shroud 401. The inner cavity of the cleaning groove is the same size as the grinding wheel 301, and a cleaning air outlet 403 is provided at the top of the inner wall of the cleaning groove. The bottom of the cleaning air outlet 403 corresponds to the top of the grinding wheel 301. A cleaning pipe is fixedly connected to the end of the air guide duct 404. Several docking covers are fixedly connected to one end of the cleaning pipe. The several docking covers are fixedly connected above the cleaning air outlet 403 to achieve stable air supply to the cleaning air outlet 403. A shut-off valve is fixedly installed in the middle of the cleaning pipe to shut off the air when cleaning is not required. During operation, the cleaning pipe is sealed to concentrate the airflow from the air outlet 402. The airflow from the cleaning air outlet 403 is directed directly to the top of the grinding wheel 301 to remove coolant and debris adhering to the grinding wheel 301. In specific implementation, the grinding motor 207 can be slidably mounted and raised or lowered using a hydraulic or electronic lifting control device. This, in turn, raises or lowers the drive shaft 206 and the grinding wheel 301 as a whole, allowing the grinding wheel 301 to enter the cleaning tank when not in use, thereby reducing the adhesion of dust and dirt and ensuring the cleanliness of the grinding wheel 301.

[0027] In one embodiment, please participate Figure 8 To supply coolant to each cooling nozzle 106, a distribution plate 111 is provided below the support plate 104. Several distribution nozzles 110 are fixedly connected to the top of the distribution plate 111. One end of each distribution nozzle 110 is connected to one of the cooling nozzles 106. A control valve is fixedly installed in the middle of each distribution nozzle 110. Each control valve independently controls the flow rate of each distribution nozzle, so that the coolant can be evenly distributed at each position of the bearing outer ring 5. The bottom of the distribution plate 111 is connected to an external coolant delivery device through a connecting pipe 112.

[0028] In one embodiment, please participate Figure 2 To facilitate the timely recovery of excess coolant, a return channel 303 is provided at the top center of the support plate 104. The inner wall of the return channel 303 is inclined. A guide channel 108 is provided on one side of the top of several cooling channels 105. One end of each guide channel 108 communicates with the inner wall of the return channel 303, and the bottom of the inner wall of the guide channel 108 slopes downwards towards the end of the return channel 303. A return pipe 107 is fixedly connected to the bottom of the inner wall of the return channel 303. Furthermore, to recover and reuse the coolant flowing to the top surface of the machine 101, please participate... Figure 8 A baffle plate 102 is fixedly connected to the top edge of the machine base 101, and a slag discharge port 114 is opened on the edge of the support plate 104. A collection pipe 113 is fixedly connected to the bottom of the slag discharge port 114. One end of the collection pipe 113 and the return pipe 107 are connected to the filtration and cleaning equipment. The filtration and cleaning equipment filters the debris and impurities in the coolant to facilitate the recycling of the coolant.

[0029] In one embodiment, please participate Figure 2 To maintain the stable position of the bearing outer ring 5 during the grinding process, the limiting mechanism includes several limiting components 109 arranged at equal angles. Please participate... Figure 8 The limiting component 109 includes a shifting groove, a transverse frame 1092 is slidably connected to the top of the inner wall of the shifting groove, a limiting stop bar 1093 is fixedly connected to one end of the top of the transverse frame 1092, a linear motor 1091 is fixedly installed at the bottom of the inner wall of the shifting groove, and the output end of the linear motor 1091 is fixedly connected to the bottom of the transverse frame 1092. The limiting stop bar 1093 is used to make tight contact with the outer wall of the bearing outer ring 5 to limit the bearing outer ring 5. The linear motor 1091 drives the transverse frame 1092 to move, thereby driving the limiting stop bar 1093 to shift, so as to achieve stable limiting and clamping of bearing outer rings 5 ​​of different diameters.

[0030] In one embodiment, a rotary pressing cylinder 1094 is fixedly installed on the top of the limiting rod 1093, and a pressing limiting block 1095 is fixedly connected to the output end of the rotary pressing cylinder 1094. A pressure sensor is fixedly installed inside the pressing limiting block 1095. The pressing limiting block 1095 is stably pressed down by the rotary pressing cylinder 1094, so that it makes tight contact with the outer ring 5 of the bearing, and the limiting and fixing is achieved from above.

[0031] In one embodiment, please participate Figure 5 and Figure 6 The drive assembly includes a mounting bracket 201, with a longitudinal guide rail 213 fixedly mounted on the bottom of the mounting bracket 201. A motor base 214 is slidably mounted inside the longitudinal guide rail 213. A directional motor 202 is fixedly mounted on the bottom of the motor base 214. A directional turntable 203 is fixedly connected to the output end of the directional motor 202. A mounting base 204 is detachably mounted on one side of the bottom of the directional turntable 203 via bolts. A mounting sleeve 205 is fixedly mounted on the bottom of the mounting base 204. The mounting sleeve 205 has a fixed internal structure. A grinding motor 207 is fixedly installed, and a drive base plate 211 is fixedly connected to the output end of the grinding motor 207. A drive shaft 206 is fixedly connected to the bottom of the drive base plate 211. The bottom of the drive shaft 206 is fixedly connected to the middle of the grinding wheel 301. The directional motor 202 drives the directional turntable 203 to rotate, which in turn drives the mounting base 204 and the mounting sleeve 205 to rotate, thereby changing the position of the grinding motor 207 and thus changing the position of the grinding wheel 301, thereby achieving uniform grinding of the entire inner wall of the outer ring 5 of the bearing.

[0032] In one embodiment, please participate Figure 6 To achieve flexible control of the rotation speed of the grinding wheel 301, a friction pad 212 is fixedly connected to the top of the drive base plate 211. A fixed frame 208 is provided above the drive base plate 211. Several clamping push rods 209 are fixedly installed in the middle of the fixed frame 208. A support bearing is fixedly installed in the middle of the fixed frame 208. The drive shaft 206 passes through the middle of the support bearing. The support bearing provides auxiliary support for the drive shaft 206, thereby improving the stability of the drive shaft 206 and the grinding wheel 301 during rotation. The output ends of the clamping push rods 209 are all fixedly connected to clamping limit blocks 210. By changing the pushing force of the clamping push rods 209 on the clamping limit blocks 210, the rotational resistance of the drive base plate 211 is changed, thereby achieving constraint control of the rotation speed of the grinding wheel 301.

[0033] In one embodiment, please participate Figure 1To achieve the overall lifting and translational movement of the grinding mechanism 2, a shifting mechanism is also provided on one side of the top of the machine base 101. The specific structure of the shifting mechanism can be implemented with reference to existing technical means. In this embodiment, a feasible structural solution is provided: specifically, it includes a drive frame 103, a transverse guide rail is fixedly installed on one side of the drive frame 103, a transverse seat is slidably installed on the inner wall of the transverse guide rail, a lifting guide rail is fixedly installed on one side of the transverse seat, and the mounting frame 201 is slidably set on the inner wall of the lifting guide rail.

[0034] In use, the outer ring 5 of the bearing to be processed is placed on the support plate 104. Then, the linear motors 1091 in several limiting components 109 synchronously drive the transverse frame 1092 to move, thereby driving each limiting stop bar 1093 to move synchronously and press against the outer ring 5 of the bearing. Then, several rotating pressing cylinders 1094 are started synchronously, driving the pressing limiting block 1095 to rotate and press down, thereby limiting the outer ring 5 of the bearing. Then, the grinding operation is performed. First, the shifting mechanism moves the grinding assembly as a whole, which in turn moves the motor base 214 in conjunction with the longitudinal guide rail 213, thereby moving the mounting sleeve 205 as a whole. This allows the grinding wheel 301 to enter the bearing outer ring 5. The starting of the grinding motor 207 drives the drive base plate 211 to rotate, which in turn drives the drive shaft 206 and the grinding wheel 301 to rotate, grinding the internal grooves of the bearing outer ring 5. Simultaneously, an external coolant delivery device supplies coolant to the connecting pipe 112, which then enters the distribution plate 111 and is fed into several distribution pipes. Inside the cooling nozzle 106, the coolant is fed into the inner side of the bearing race from below. The rotation of the grinding wheel 301 evenly disperses the coolant, achieving sufficient cooling of the grinding area and the outer ring 5 of the bearing. Part of the coolant flows into the return tank 303 through the guide channel 108 and is then sent in through the return pipe 107. The other part flows onto the machine base 101, is collected by the slag discharge tank, and is then collected and sent out by the collection pipe 113. Finally, it is sent to the filtration and cleaning equipment to filter out debris and impurities in the coolant, so as to facilitate the recycling of the coolant.

[0035] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A grinding device for the outer ring of a bearing steel ring, characterized in that, The machine includes a machine base (101), and a grinding mechanism (2) is provided above the machine base (101). The grinding mechanism (2) includes a grinding wheel (301) and a driving component for driving the grinding wheel (301) to rotate and move. A support plate (104) is fixedly installed at the top center of the machine base (101). A limiting mechanism for limiting the outer ring (5) of the bearing is provided at the top edge of the support plate (104). Several cooling channels (105) are opened in the middle of the support plate (104). Cooling nozzles (106) are fixedly installed inside the several cooling channels (105).

2. The outer ring grinding equipment for machining bearing steel rings as described in claim 1, characterized in that, The top outer ring of the grinding wheel (301) is fixedly connected with a number of inclined guide teeth (304), and the guide teeth (304) have a gap at one end near the edge of the grinding wheel (301).

3. The outer ring grinding equipment for processing bearing steel rings as described in claim 1, characterized in that, The grinding wheel (301) has a return groove (303) on its top inner ring and a number of equally spaced diversion grooves (302) on its outer wall. The diversion grooves (302) are all inclined and connected to the return cavity.

4. The outer ring grinding equipment for machining bearing steel rings as described in claim 1, characterized in that, An air guide hood (401) is provided above the grinding wheel (301), and an air outlet groove (402) is provided on the bottom edge of the air guide hood (401). An air guide pipe (404) is fixedly connected to one side of the air guide hood (401).

5. The outer ring grinding equipment for machining bearing steel rings as described in claim 4, characterized in that, The bottom of the air guide shroud (401) is provided with a cleaning groove, and the top of the inner wall of the cleaning groove is provided with a cleaning air outlet (403), which is correspondingly provided with the top of the grinding wheel (301).

6. The outer ring grinding equipment for machining bearing steel rings as described in claim 1, characterized in that, A flow divider plate (111) is provided below the support plate (104). A number of flow divider nozzles (110) are fixedly connected to the top of the flow divider plate (111). One end of each of the flow divider nozzles (110) is connected to a number of cooling nozzles (106). A control valve is fixedly installed in the middle of each of the flow divider nozzles (110).

7. The outer ring grinding equipment for machining bearing steel rings as described in claim 1, characterized in that, The support plate (104) has a return groove (303) at the top center. The inner wall of the return groove (303) is inclined. A guide groove (108) is provided on one side of the top of several cooling channels (105). One end of several guide grooves (108) is connected to the inner wall of the return groove (303). A return pipe (107) is fixedly connected to the bottom of the inner wall of the return groove (303).

8. The outer ring grinding equipment for machining bearing steel rings as described in claim 1, characterized in that, The drive assembly includes a mounting bracket (201), a longitudinal guide rail (213) is fixedly mounted on the bottom of the mounting bracket (201), a motor base (214) is slidably mounted inside the longitudinal guide rail (213), a directional motor (202) is fixedly mounted on the bottom of the motor base (214), a directional turntable (203) is fixedly connected to the output end of the directional motor (202), a mounting base (204) is located on one side of the bottom of the directional turntable (203), a mounting sleeve (205) is fixedly mounted on the bottom of the mounting base (204), a grinding motor (207) is fixedly mounted inside the mounting sleeve (205), a drive base plate (211) is fixedly connected to the output end of the grinding motor (207), a drive shaft (206) is fixedly connected to the bottom of the drive base plate (211), and the bottom of the drive shaft (206) is fixedly connected to the middle of the grinding wheel (301).

9. The outer ring grinding equipment for machining bearing steel rings as described in claim 8, characterized in that, A friction pad (212) is fixedly connected to the top of the drive base plate (211), and a number of pressing push rods (209) are provided above the drive base plate (211). The output ends of the pressing push rods (209) are all fixedly connected to pressing limit blocks (210).

10. The outer ring grinding equipment for machining bearing steel rings as described in claim 1, characterized in that, The limiting mechanism includes several limiting components (109) arranged at equal angles. Each limiting component (109) includes a shifting groove. A transverse frame (1092) is slidably connected to the top of the inner wall of the shifting groove. A limiting stop bar (1093) is fixedly connected to one end of the top of the transverse frame (1092). A linear motor (1091) is fixedly installed at the bottom of the inner wall of the shifting groove. The output end of the linear motor (1091) is fixedly connected to the bottom of the transverse frame (1092).

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