A kind of outer ring grinding equipment for tapered roller bearing

Abstract

This invention provides a grinding equipment for the outer ring of tapered roller bearings, relating to the technical field of grinding equipment. It includes: a base; a suspension fixedly mounted on the top of one end of the base; a cantilever rotatably mounted on the upper end of the suspension via a rotating shaft; a main motor vertically fixedly mounted on the top of the end of the cantilever; a grinding frame rotatably mounted on the cantilever below the main motor; the main motor drives the grinding frame to rotate; an inner rotating disk rotatably mounted in the grinding frame; and two symmetrical grinding arms vertically mounted on the lower end of the grinding frame. In this invention, when the main motor drives the grinding frame to rotate as a whole, an auxiliary motor synchronously drives the inner rotating disk to rotate via a splined shaft. The ring teeth at the bottom of the inner rotating disk mesh with the gears of the upper grinding roller, enabling the upper grinding roller to grind the upper end face while the grinding roller of the outer ring grinding mechanism is radially fed under the push of the advance cylinder to grind the outer ring surface, achieving simultaneous double-sided processing in a single clamping, eliminating repetitive positioning errors, and improving efficiency.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, and in particular to a grinding equipment for outer rings of tapered roller bearings. Background Technology

[0002] In the machining of tapered roller bearing rings, traditional equipment requires separate grinding of the outer ring surface and the upper end face, leading to positioning errors caused by multiple clamping operations, and dust accumulation can easily affect machining accuracy. In existing technologies, outer ring surface grinding often employs a radial feed mechanism, while upper end face grinding frequently relies on an independent drive system, resulting in complex equipment structure and poor coordination. Workpiece clamping mechanisms often rely on outer ring clamping, which can easily cause deformation of thin-walled bearing rings. Grinding dust requires additional dust removal equipment, increasing energy consumption and maintenance costs. Therefore, there is an urgent need for an integrated device that can achieve simultaneous double-sided grinding, high-precision positioning, and self-dust removal. Summary of the Invention

[0003] This invention relates to an outer ring grinding equipment for tapered roller bearings. The adjustable cantilever design optimizes the workpiece loading and unloading space. The bearing clamping mechanism (clamping cylinder, support arm, support block) enables rapid and reliable clamping of the workpiece. The main motor drives the grinding frame to rotate and, in conjunction with the outer ring grinding mechanism (advance cylinder, grinding seat, grinding motor, grinding roller), completes the grinding of the outer ring surface. Simultaneously, the auxiliary motor drives the inner rotating disk, which in turn drives the upper grinding roller to rotate through the meshing of the ring gear and gear. The upper end face is ground in conjunction with the adjustable adjusting screw, and dust is removed synchronously by the fan wheel.

[0004] This invention provides a grinding machine for the outer ring of tapered roller bearings, specifically comprising: a base; a suspension fixedly mounted on the top of one end of the base; a cantilever rotatably mounted on the upper end of the suspension via a rotating shaft; a main motor vertically fixedly mounted on the top of the end of the cantilever, and a grinding frame rotatably mounted on the cantilever below the main motor, the main motor driving the grinding frame to rotate; an inner rotating disk rotatably mounted in the grinding frame; and two symmetrical grinding arms vertically mounted on the lower end of the grinding frame, the ends of which are provided with an outer ring grinding frame. An upper grinding sleeve is provided on the grinding arm inside the outer ring grinding frame; a bearing fixing seat is fixedly installed on the base directly below the grinding frame; a bearing clamping mechanism is provided on the bearing fixing seat, which is used to clamp the tapered roller bearing ring; an outer ring grinding mechanism is provided on the outer ring grinding frame, and an upper end face grinding mechanism is provided on the upper grinding sleeve. The outer ring grinding mechanism is used to grind the outer ring surface of the tapered roller bearing ring, and the upper end face grinding mechanism is driven by an inner rotating disk and is used to grind the upper end face of the tapered roller bearing ring.

[0005] Optionally, a fixed arm sleeve is vertically and fixedly provided at the upper end of the suspension towards the side where the bearing fixing seat is located. A "U"-shaped card slot is provided in the fixed arm sleeve. The cantilever can be clamped in the "U"-shaped card slot of the fixed arm sleeve. Two pin columns are vertically and slidably inserted into the fixed arm sleeve. A pin hole is provided on the cantilever. When the cantilever is buckled in the "U"-shaped card slot of the fixed arm sleeve, the lower ends of the pin columns are correspondingly inserted into the pin holes of the cantilever. At this time, the grinding frame is directly above the bearing fixing seat. When the pin columns are taken out, the clockwise rotation of the cantilever drives the grinding frame away from directly above the bearing fixing seat for the picking and placing of the tapered roller bearing ring.

[0006] Optionally, the bearing tightening mechanism includes a tightening cylinder, a tightening arm and a tightening block. The tightening cylinder is vertically and inversely installed at the middle position of the bearing fixing seat. The end of the piston rod of the tightening cylinder is fixedly connected to the top of the bearing fixing seat. An anti-rotation fin is provided on the piston rod to keep the position of the tightening cylinder and the bearing fixing seat fixed. Tightening arms are respectively fixedly provided at both ends of the shell of the tightening cylinder. A tightening block is provided at the end of the tightening arm. The tightening arm and the tightening block form a "W"-shaped structure. The tightening block abuts against the inner ring wall of the tapered roller bearing ring. When the piston rod of the tightening cylinder contracts, the tightening block moves downward to abut and fix the tapered roller bearing ring.

[0007] Optionally, a plug shaft is vertically provided at the lower end of the grinding frame. The plug shaft is vertically and rotatably inserted into the shell of the tightening cylinder. The end of the grinding arm corresponds to an activity slot for the outer ring grinding mechanism to move.

[0008] Optionally, a sub-motor is provided at the upper end of the inner rotating disc. The sub-motor is vertically embedded in the middle of the grinding frame. The end of the rotating shaft of the sub-motor is fixedly connected with a spline shaft. The spline shaft is vertically and rotatably connected with the inner rotating disc. The ring edge of the inner rotating disc is rotationally clamped in the inner end of the upper grinding sleeve. Ring teeth are provided at the ring edge of the bottom plane of the inner rotating disc.

[0009] Optionally, the outer ring grinding mechanism includes an advancing cylinder, a grinding seat, a grinding motor and a grinding roller. The advancing cylinder is horizontally installed on the outer ring grinding frame. The end of the piston rod of the advancing cylinder is vertically and fixedly provided with a grinding seat. A rotating shaft is vertically and rotatably installed through the grinding seat. The lower end rotating shaft of the grinding seat slides through the activity slot. The lower end rotating shaft of the grinding seat is fixedly connected with a grinding roller. The upper end of the grinding seat is a grinding motor for driving the grinding roller to rotate. The grinding roller contacts the outer wall of the tapered roller bearing ring.

[0010] Optionally, the upper end face grinding mechanism includes an adjusting screw rod, fixed ears, an upper grinding roller, a gear, and movable ears. The middle part of the upper grinding sleeve is vertically and rotationally screwed with the adjusting screw rod. The lower end of the adjusting screw rod is vertically and rotationally connected to the upper end of the grinding arm. The upper grinding sleeve is buckled on the grinding arm. At the lower end of the side walls at the left and right ends of the upper grinding sleeve, fixed ears are fixedly provided near one end of the inner rotating disc, and symmetrical movable ears are fixedly installed at the other end through bolts. An upper grinding roller is rotationally installed between the fixed ear and the movable ear. The upper grinding rollers are distributed along the meridians of the inner rotating disc. A gear is fixedly provided at the inner end of the rotating shaft of the upper grinding roller, and the gear is always meshed with the ring gear at the bottom of the inner rotating disc. The lower end of the upper grinding roller is in contact with the upper end of the tapered roller bearing ring.

[0011] Optionally, the upper end face grinding mechanism further includes a fan wheel. A fan wheel is fixedly provided at the outer end of the rotating shaft of the upper grinding roller. The fan wheel is located outside the tapered roller bearing ring. The fan wheel is used to generate an air flow to clean the grinding powder generated at the grinding roller and the upper grinding roller.

[0012] The present invention provides an outer ring grinding processing device for tapered roller bearings, which has the following beneficial effects: 1. When the main motor drives the overall rotation of the grinding frame in the present invention, the auxiliary motor synchronously drives the inner rotating disc to rotate through the spline shaft. The ring gear at the bottom of the inner rotating disc is meshed with the gear of the upper grinding roller for transmission, so that while the upper grinding roller grinds the upper end face, the grinding roller of the outer ring grinding mechanism radially feeds to grind the outer ring surface under the push of the feeding cylinder, realizing double-sided synchronous processing under one clamping, eliminating the repeated positioning error, and improving the efficiency.

[0013] 2. In the present invention, the inverted mounting tightening cylinder drives the "W"-shaped support arm - support block structure to move downward through the contraction of the piston rod, and tightly supports from the inner wall of the bearing ring evenly, avoiding the deformation of the thin-walled part; the insertion shaft of the grinding frame rotates and is inserted into the tightening cylinder housing, which not only provides rotational support but also ensures the coaxial accuracy (≤0.01 mm) between the grinding frame and the bearing fixing seat, guaranteeing the consistency of the grinding profile.

[0014] 3. In the present invention, the upper grinding sleeve realizes the fine adjustment of the height of the upper grinding roller through the adjusting screw rod, adapting to different specifications of bearing rings; the fan wheel at the outer end of the rotating shaft of the upper grinding roller rotates synchronously with the grinding, generating a directional air flow to remove the grinding chips in the areas of the grinding roller and the upper grinding roller. The dust removal rate is ≥95%, avoiding scratching the processed surface and extending the service life of the grinding wheel by 30%.

[0015] 4. In the present invention, the cantilever is quickly locked / released through the "C"-shaped card slot and the pin column of the fixed arm sleeve. Rotating clockwise can move the grinding frame away, completely exposing the bearing fixing seat. The material changing time is shortened to 5 seconds, and no components need to be disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0017] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0018] In the attached diagram: Figure 1 A schematic diagram of the first axial view structure of the present invention is shown; Figure 2 A schematic diagram of the second axial view structure of the present invention is shown; Figure 3 This diagram shows a schematic axial view of the grinding frame and bearing holder of the present invention in a separated state. Figure 4 The following is a schematic diagram of the lower axial view of the grinding frame, outer ring grinding frame, and upper grinding sleeve of the present invention; Figure 5 The present invention is shown Figure 4 Schematic diagram of the A-section structure; Figure 6 This shows a schematic diagram of the outer ring grinding frame portion of the present invention in a separated state from the grinding arm; Figure 7 A schematic axial view of the upper grinding sleeve portion of the present invention is shown; Figure 8 A schematic diagram of the upper grinding sleeve in a split state is shown.

[0019] List of reference numerals in the attached diagram: 1. Base; 2. Suspension; 201. Fixed arm sleeve; 202. Cantilever; 203. Pin; 204. Main motor; 3. Control box; 4. Bearing mounting base; 401. Tensioning cylinder; 402. Support arm; 403. Support block; 5. Tapered roller bearing rings; 6. Grinding stand; 601. Grinding arm; 6011. Movable slot; 602. Insert shaft; 7. Inner rotating disk; 701. Auxiliary motor; 702. Splined shaft; 703. Ring gear; 8. Outer ring grinding frame; 801. Feed cylinder; 802. Grinding seat; 803. Grinding motor; 804. Grinding roller; 9. Upper grinding sleeve; 901. Adjusting screw; 902. Fixed ear; 903. Upper grinding roller; 904. Gear; 905. Fan wheel; 906. Movable ear. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0021] Please refer to Figures 1 to 8 : Embodiment 1: The present invention provides an outer ring grinding and processing device for tapered roller bearings, including: a base 1; a suspension 2 is fixedly installed at the top of one end of the base 1; the upper end of the suspension 2 is rotatably installed with a cantilever 202 through a rotating shaft; a main motor 204 is vertically fixedly installed at the top of the end of the cantilever 202; a grinding frame 6 is rotatably installed on the cantilever 202 below the main motor 204, and the main motor 204 is used to drive the grinding frame 6 to rotate; an inner rotating disk 7 is rotatably installed in the grinding frame 6; two symmetric grinding arms 601 are vertically installed at the lower end of the grinding frame 6, an outer ring grinding frame 8 is provided at the end of the grinding arm 601, and an upper grinding sleeve 9 is provided on the grinding arm 601 inside the outer ring grinding frame 8; a bearing fixing seat 4 is fixedly installed on the base 1 directly below the grinding frame 6; a bearing tightening mechanism is provided on the bearing fixing seat 4, and the bearing tightening mechanism is used to tighten the tapered roller bearing ring 5; an outer ring grinding mechanism is provided on the outer ring grinding frame 8, and an upper end surface grinding mechanism is provided on the upper grinding sleeve 9. The outer ring grinding mechanism is used to grind the outer ring surface of the tapered roller bearing ring 5, and the upper end surface grinding mechanism is driven by the inner rotating disk 7 and is used to grind the upper end surface of the tapered roller bearing ring 5; a control box 3 is installed on the suspension 2.

[0022] Among them, a fixed arm sleeve 201 is vertically fixedly provided on the upper end of the suspension 2 facing the side where the bearing fixing seat 4 is located. A "U"-shaped card slot is provided in the fixed arm sleeve 201. The cantilever 202 can be clamped in the "U"-shaped card slot of the fixed arm sleeve 201. Two pin posts 203 are vertically slidably inserted into the fixed arm sleeve 201. There are pin holes on the cantilever 202. When the cantilever 202 is buckled in the "U"-shaped card slot of the fixed arm sleeve 201, the lower ends of the pin posts 203 are correspondingly inserted into the pin holes of the cantilever 202. At this time, the grinding frame 6 is directly above the bearing fixing seat 4. When the pin posts 203 are taken out, the cantilever 202 rotates clockwise to drive the grinding frame 6 away from directly above the bearing fixing seat 4 for the picking and placing of the tapered roller bearing ring 5.

[0023] The bearing clamping mechanism includes a clamping cylinder 401, a support arm 402, and a support block 403. The clamping cylinder 401 is vertically inverted and installed in the middle of the bearing mounting seat 4. The piston rod of the clamping cylinder 401 is fixedly connected to the top of the bearing mounting seat 4. The piston rod is provided with anti-rotation fins to keep the clamping cylinder 401 and the bearing mounting seat 4 in a fixed position. The two ends of the housing of the clamping cylinder 401 are respectively fixed with support arms 402. The end of the support arm 402 is provided with a support block 403. The support arm 402 and the support block 403 form a "W" shape. The support block 403 abuts against the inner ring wall of the tapered roller bearing ring 5. When the piston rod of the clamping cylinder 401 retracts, the support block 403 moves down and abuts against and fixes against the tapered roller bearing ring 5.

[0024] The lower end of the grinding frame 6 is vertically provided with a shaft 602, which is vertically rotatably inserted into the housing of the tensioning cylinder 401. The end of the grinding arm 601 corresponds to the movable slot 6011 for the outer ring grinding mechanism to move.

[0025] The inner rotating disk 7 has an auxiliary motor 701 at its upper end. The auxiliary motor 701 is vertically embedded in the middle of the grinding frame 6. The end of the rotating shaft of the auxiliary motor 701 is fixedly connected to a splined shaft 702. The splined shaft 702 is vertically rotatably connected to the inner rotating disk 7. The circumferential edge of the inner rotating disk 7 is rotatably engaged with the inner end of the upper grinding sleeve 9. The circumferential edge of the bottom plane of the inner rotating disk 7 is provided with ring teeth 703.

[0026] The outer ring grinding mechanism includes an advance cylinder 801, a grinding seat 802, a grinding motor 803, and a grinding roller 804. The advance cylinder 801 is horizontally mounted on the outer ring grinding frame 8. The end of the piston rod of the advance cylinder 801 is vertically fixed with the grinding seat 802. A rotating shaft is vertically mounted through the grinding seat 802. The lower end of the rotating shaft of the grinding seat 802 slides through the movable strip hole 6011. The lower end of the rotating shaft of the grinding seat 802 is fixedly connected to the grinding roller 804. The upper end of the grinding seat 802 is the grinding motor 803 used to drive the grinding roller 804 to rotate. The grinding roller 804 is in contact with the outer wall of the tapered roller bearing ring 5.

[0027] The upper surface grinding mechanism includes an adjusting screw 901, a fixed ear 902, an upper grinding roller 903, a gear 904, and a movable ear 906. The adjusting screw 901 is vertically screwed to the middle of the upper grinding sleeve 9. The lower end of the adjusting screw 901 is vertically connected to the upper end of the grinding arm 601. The upper grinding sleeve 9 is upside down on the grinding arm 601. The lower end of the side wall of the upper grinding sleeve 9 at both ends is fixed with a fixed ear 902 near the inner rotating disk 7. The other end is fixed with symmetrical movable ears 906 by bolts. The upper grinding roller 903 is rotatably installed between the fixed ear 902 and the movable ear 906. The upper grinding roller 903 is distributed along the meridian of the inner rotating disk 7. The gear 904 is fixed to the inner end of the rotating shaft of the upper grinding roller 903. The gear 904 is always meshed with the ring tooth 703 at the bottom of the inner rotating disk 7. The lower end of the upper grinding roller 903 is in contact with the upper end of the tapered roller bearing ring 5.

[0028] In Example 2, based on Example 1, the upper surface grinding mechanism further includes a fan wheel 905. The fan wheel 905 is fixedly provided at the outer end of the rotating shaft of the upper grinding roller 903. The fan wheel 905 is located outside the tapered roller bearing ring 5. The fan wheel 905 is used to generate airflow to clean the grinding powder generated at the grinding roller 804 and the upper grinding roller 903.

[0029] The following provides further explanation and description of the functions and effects of each structure mentioned above, to help those skilled in the art better understand the technical solution: The upper end of the suspension 2 is adjustablely connected to the cantilever 202 via a fixed arm sleeve 201. The "U"-shaped groove of the fixed arm sleeve 201, in conjunction with the pin 203, securely locks the cantilever 202, ensuring that the grinding frame 6 is precisely positioned above the bearing mounting seat 4 for processing. When it is necessary to load or unload the workpiece, the pin 203 can be pulled out and the cantilever 202 rotated clockwise to move the grinding frame 6 away as a whole, greatly facilitating operation. The main motor 204 installed at the end of the cantilever 202 provides the core rotational power, directly driving the grinding frame 6 to rotate, while the inner rotating disk 7 installed inside the grinding frame 6 forms the transmission hub for grinding the upper surface. Two grinding arms 601 symmetrically arranged at the lower end of the grinding frame 6 respectively support the outer ring grinding frame 8 and the upper grinding sleeve 9 at their ends. These two components are the execution unit carriers for achieving double-sided grinding.

[0030] The bearing mounting seat 4, located directly below the grinding head 6, houses a bearing clamping mechanism crucial for precise workpiece positioning. The core of this mechanism is an inverted clamping cylinder 401, whose piston rod is fixed to the top of the bearing mounting seat 4. Anti-rotation fins on the piston rod ensure the cylinder housing does not rotate during operation. When the piston rod of the clamping cylinder 401 retracts, it drives the support arms 402 fixed to both ends of the housing and the support blocks 403 at their ends to move downwards. The "W"-shaped structure formed by the support blocks 403 and support arms 402 securely clamps the inner ring wall of the tapered roller bearing ring 5, providing the necessary rigid clamping for machining. The insertion shaft 602 at the lower end of the grinding head 6 vertically rotates and inserts into the housing of the clamping cylinder 401. This design allows the grinding head 6 to rotate relative to the bearing mounting seat 4 while providing necessary support and positioning reference.

[0031] The grinding of the outer ring surface is accomplished by the outer ring grinding mechanism. This mechanism is mounted on the outer ring grinding frame 8, and the feed cylinder 801 provides radial feed power, pushing the grinding seat 802 to move horizontally. The grinding motor 803 mounted on the grinding seat 802 drives a rotating shaft that passes through itself to rotate. The lower end of the rotating shaft passes through the movable slot 6011 on the grinding arm 601 and fixes the grinding roller 804. Through the feed of the feed cylinder 801, the grinding roller 804 can contact and grind the outer wall of the firmly clamped tapered roller bearing ring 5. The movable slot 6011 provides space for the movement of the grinding roller 804. The grinding of the upper end face is more complex and is realized by the upper end face grinding mechanism, which relies on the drive of the inner rotating disk 7. The inner rotating disk 7 is driven to rotate by the auxiliary motor 701 through the splined shaft 702. The ring teeth 703 at the bottom of the inner rotating disk 7 are the key to its power transmission. The upper grinding sleeve 9 is inverted and rests on the grinding arm 601. Its middle portion is connected to the grinding arm 601 via an adjusting screw 901. Rotating the adjusting screw 901 allows for fine adjustment of the height of the upper grinding sleeve 9. One end of the upper grinding sleeve 9 near the inner rotating disk 7 has a fixed lug 902, and the other end is fitted with an upper grinding roller 903 via a movable lug 906. A gear 904 is fixed to the inner end of the upper grinding roller 903's shaft, and this gear 904 is always engaged with the ring gear 703 at the bottom of the inner rotating disk 7. Therefore, when the inner rotating disk 7 rotates, the engagement of the ring gear 703 and the gear 904 drives the upper grinding roller 903 to rotate around its own axis. The lower end face of the upper grinding roller 903 contacts and grinds the upper end face of the tapered roller bearing ring 5. In addition, the fan wheel 905 fixed at the outer end of the upper grinding roller 903 rotates together with the upper grinding roller 903, generating airflow to effectively blow away the grinding dust generated in the area of ​​the grinding roller 804 and the upper grinding roller 903, keeping the processing area clean and improving processing quality and equipment life.

[0032] In summary, this equipment optimizes the workpiece loading and unloading space through the adjustable design of the cantilever 202. The bearing clamping mechanism (clamping cylinder 401, support arm 402, support block 403) enables rapid and reliable workpiece clamping. The main motor 204 drives the grinding frame 6 to rotate, which, in conjunction with the outer ring grinding mechanism (advance cylinder 801, grinding seat 802, grinding motor 803, grinding roller 804), completes the outer ring surface grinding. Simultaneously, the auxiliary motor 701 drives the inner rotating disk 7, which, through the meshing of the ring gear 703 and gear 904, drives the upper grinding roller 903 to rotate. Combined with the adjustable adjusting screw 901, this completes the upper end face grinding, and the fan wheel 905 simultaneously performs dust removal. Through the coordinated action of these mechanisms, the composite grinding of the outer ring surface and upper end face of the tapered roller bearing ring 5 is completed efficiently and with high precision in a single clamping operation.

[0033] Working principle: When the equipment is in operation, the workpiece is first clamped. The operator removes the pin 203 from the fixed arm sleeve 201 and rotates the cantilever 202 clockwise, moving the grinding frame 6, along with the grinding arm 601 below it, the outer ring grinding frame 8, and the upper grinding sleeve 9, away from directly above the bearing mounting seat 4. The tapered roller bearing ring 5 to be processed is placed on the bearing mounting seat 4. Then, the cantilever 202 is rotated in the opposite direction to engage with the "U"-shaped groove in the fixed arm sleeve 201, and the pin 203 is inserted to lock the position of the cantilever 202, ensuring that the grinding frame 6 is precisely aligned above the bearing mounting seat 4. Activate the bearing clamping mechanism: The piston rod of the inverted clamping cylinder 401 retracts (the end of the piston rod is fixed to the bearing mounting seat 4, and the piston rod anti-rotation fin prevents rotation), which drives the cylinder housing and the support arms 402 fixed at both ends to move upward, so that the support block 403 at the end of the support arm 402 forms a "W"-shaped support structure and presses against the inner ring wall of the tapered roller bearing ring 5 downward, thereby achieving stable clamping of the workpiece.

[0034] After the workpiece is fixed, the grinding program is started. The main motor 204 drives the grinding frame 6 to rotate around the insertion shaft 602, which is rotatably inserted into the housing of the clamping cylinder 401, providing rotational support for the grinding frame 6. At the same time, the outer ring grinding mechanism starts working: the feed cylinder 801 on the outer ring grinding frame 8 pushes the grinding seat 802 horizontally towards the workpiece. The grinding motor 803 at the upper end of the grinding seat 802 drives the rotating shaft passing through the grinding seat 802 to rotate. The lower end of the rotating shaft passes through the movable slot 6011 at the end of the grinding arm 601, driving the grinding roller 804 to rotate. The rotating grinding roller 804 contacts and grinds the outer ring surface of the clamped tapered roller bearing ring 5. The movable slot 6011 provides a path for the radial movement of the grinding roller 804.

[0035] The upper surface grinding is performed synchronously. The auxiliary motor 701 drives the inner rotating disk 7 to rotate within the grinding frame 6 via the splined shaft 702. The ring gear 703 at the bottom of the inner rotating disk 7 rotates accordingly. In the upper surface grinding mechanism, the inner end of the rotating shaft of the upper grinding roller 903 is fixed with a gear 904, which is always engaged with the ring gear 703 of the inner rotating disk 7. Therefore, the rotation of the inner rotating disk 7 is transmitted through the meshing of the ring gear 703 and the gear 904, driving the upper grinding roller 903 to rotate around its own axis. The lower end face of the rotating upper grinding roller 903 contacts and grinds the upper end face of the tapered roller bearing ring 5. By rotating the adjusting screw 901 in the middle of the upper grinding sleeve 9, the height of the upper grinding sleeve 9 and the upper grinding roller 903 mounted on it relative to the grinding arm 601 can be finely adjusted to adapt to the processing requirements of different workpieces. The upper grinding roller 903 is mounted on both ends of the upper grinding sleeve 9 via fixed ears 902 and movable ears 906 to ensure stable support.

[0036] During the grinding process, the fan wheel 905, fixed to the outer end of the upper grinding roller 903 shaft, rotates at high speed along with the upper grinding roller 903, generating a directional airflow. This airflow effectively blows away the grinding debris and dust generated in the areas of the grinding roller 804 and the upper grinding roller 903, keeping the grinding contact surface clean, improving grinding accuracy, and extending the equipment life.

[0037] In summary, this equipment, through a single clamping operation, achieves efficient and high-precision synchronous composite grinding of the outer ring surface and upper end surface of the tapered roller bearing ring 5 by the coordinated action of the main motor 204 driving the grinding frame 6 to rotate and the auxiliary motor 701 driving the inner rotating disk 7 to rotate, combined with the radial feed grinding of the outer ring grinding mechanism and the gear meshing transmission grinding of the upper end surface grinding mechanism 904. Automatic dust removal is achieved through the fan wheel 905.

[0038] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0039] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0040] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A grinding machine for outer rings of tapered roller bearings, comprising: A base (1); a suspension (2) is fixedly installed at the top of one end of the base (1); characterized in that a cantilever (202) is rotatably installed at the upper end of the suspension (2) via a rotating shaft; a main motor (204) is vertically fixedly installed at the top end of the cantilever (202), and a grinding frame (6) is rotatably installed on the cantilever (202) below the main motor (204), the main motor (204) is used to drive the grinding frame (6) to rotate; an inner rotating disk (7) is rotatably installed in the grinding frame (6); two symmetrical grinding arms (601) are vertically installed at the lower end of the grinding frame (6), and an outer ring grinding frame (8) is provided at the end of the grinding arm (601), the inner side of the outer ring grinding frame (8) The grinding arm (601) is provided with an upper grinding sleeve (9); a bearing fixing seat (4) is fixedly installed on the base (1) directly below the grinding frame (6); a bearing clamping mechanism is provided on the bearing fixing seat (4), which is used to clamp the tapered roller bearing ring (5); an outer ring grinding mechanism is provided on the outer ring grinding frame (8), and an upper end face grinding mechanism is provided on the upper grinding sleeve (9). The outer ring grinding mechanism is used to grind the outer ring surface of the tapered roller bearing ring (5), and the upper end face grinding mechanism is driven by an inner rotating disk (7). The upper end face grinding mechanism is used to grind the upper end face of the tapered roller bearing ring (5); a shaft (602) is vertically provided at the lower end of the grinding frame (6). (602) Vertically rotated and inserted into the housing of the support cylinder (401), the end of the grinding arm (601) corresponds to the movable slot (6011) for the outer ring grinding mechanism to move; the upper end of the inner rotating disk (7) is provided with an auxiliary motor (701), the auxiliary motor (701) is vertically embedded in the middle of the grinding frame (6), the end of the rotating shaft of the auxiliary motor (701) is fixedly connected with a spline shaft (702), the spline shaft (702) is vertically rotated and connected to the inner rotating disk (7), the ring edge of the inner rotating disk (7) is rotated and snapped into the inner end of the upper grinding sleeve (9), and the ring edge of the bottom plane of the inner rotating disk (7) is provided with ring teeth (703); the outer ring grinding mechanism includes an advance cylinder (801) The grinding frame (8) includes a grinding seat (802), a grinding motor (803), and a grinding roller (804). The outer ring grinding frame (8) is horizontally mounted with an advance cylinder (801). The piston rod of the advance cylinder (801) is vertically fixed with a grinding seat (802). A rotating shaft is vertically mounted through the grinding seat (802). The lower end of the rotating shaft of the grinding seat (802) slides through the movable strip hole (6011). The lower end of the rotating shaft of the grinding seat (802) is fixedly connected to the grinding roller (804). The upper end of the grinding seat (802) is a grinding motor (803) for driving the grinding roller (804) to rotate. The grinding roller (804) is in contact with the outer wall of the tapered roller bearing ring (5).The upper surface grinding mechanism includes an adjusting screw (901), a fixed lug (902), an upper grinding roller (903), a gear (904), and a movable lug (906). The adjusting screw (901) is vertically screwed to the middle of the upper grinding sleeve (9). The lower end of the adjusting screw (901) is vertically connected to the upper end of the grinding arm (601). The upper grinding sleeve (9) is upside down on the grinding arm (601). The lower end of the side wall of the upper grinding sleeve (9) near the inner rotating disk (7) is fixedly provided with a fixed lug. The fixed ear (902) has a symmetrical movable ear (906) fixed to the other end by bolts. An upper grinding roller (903) is rotatably mounted between the fixed ear (902) and the movable ear (906). The upper grinding roller (903) is distributed along the meridian of the inner rotating disk (7). A gear (904) is fixedly provided at the inner end of the rotating shaft of the upper grinding roller (903). The gear (904) is always meshed with the ring tooth (703) at the bottom of the inner rotating disk (7). The lower end of the upper grinding roller (903) is in contact with the upper end of the tapered roller bearing ring (5).

2. The grinding equipment for outer rings of tapered roller bearings according to claim 1, characterized in that, The upper end of the suspension (2) is vertically fixedly provided with a fixed arm sleeve (201) towards the side where the bearing fixing seat (4) is located. A "C"-shaped card slot is provided in the fixed arm sleeve (201). The cantilever (202) can be clamped in the "C"-shaped card slot of the fixed arm sleeve (201). Two pin columns (203) are vertically and slidably inserted into the fixed arm sleeve (201). A pin hole is provided on the cantilever (202). When the cantilever (202) is buckled in the "C"-shaped card slot of the fixed arm sleeve (201), the lower ends of the pin columns (203) are correspondingly inserted into the pin holes of the cantilever (202). At this time, the grinding frame (6) is directly above the bearing fixing seat (4). When the pin columns (203) are taken out, the clockwise rotation of the cantilever (202) drives the grinding frame (6) away from directly above the bearing fixing seat (4) for the picking and placing of the tapered roller bearing ring (5).

3. The grinding equipment for outer rings of tapered roller bearings according to claim 1, characterized in that, The bearing tightening mechanism includes a tightening cylinder (401), a supporting arm (402) and a supporting block (403). The tightening cylinder (401) is vertically and inversely installed at the middle position of the bearing fixing seat (4). The end of the piston rod of the tightening cylinder (401) is fixedly connected to the top of the bearing fixing seat (4). Anti-rotation fins are provided on the piston rod to keep the position of the tightening cylinder (401) and the bearing fixing seat (4) fixed. Supporting arms (402) are respectively fixedly provided at both ends of the shell of the tightening cylinder (401). A supporting block (403) is provided at the end of the supporting arm (402). The supporting arm (402) and the supporting block (403) form a "W"-shaped structure. The supporting block (403) abuts against the inner ring wall of the tapered roller bearing ring (5). When the piston rod of the tightening cylinder (401) contracts, the supporting block (403) moves downward to abut and fix the tapered roller bearing ring (5).

4. The grinding equipment for outer rings of tapered roller bearings according to claim 1, characterized in that, The upper end surface grinding mechanism further includes a fan wheel (905). The outer end of the rotating shaft of the upper grinding roller (903) is fixedly provided with the fan wheel (905). The fan wheel (905) is located outside the tapered roller bearing ring (5). The fan wheel (905) is used to generate air flow to clean the grinding powder generated at the grinding roller (804) and the upper grinding roller (903).

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