Precise roller end face edge automatic grinding device

Abstract

The invention relates to a roller end face edge grinding device, in particular to a precise roller end face edge automatic grinding device, which relates to the technical field of bearing processing, and comprises: a conveying device comprising a conveying belt for driving a roller to be transversely conveyed, and the axial direction of the roller is perpendicular to the conveying direction of the conveying belt; the abutting mechanism comprises a pressing plate pressing piece parallel to the conveying belt, a conveying channel for containing the rollers is formed between the pressing plate pressing piece and the conveying belt, and when the rollers are conveyed in the conveying channel, the lower bottom face of the pressing plate pressing piece abuts against the outer circle faces of the rollers, so that the rollers can rotate while being horizontally conveyed; the grinding mechanism is arranged on one side of the conveying device and comprises an abrasive belt, the abrasive belt is provided with a grinding area used for abutting against the hard corner area of the end face of the roller, the abrasive belt in the grinding area is obliquely arranged, and an acute angle is formed between the abrasive belt and the end face of the roller. And the grinding area grinds the hard corner area when the conveying device drives the roller to transversely convey. The effect of improving the roller machining efficiency is achieved.

Description

Technical Field

[0001] This application relates to the field of bearing processing, and in particular to an automatic grinding device for the edge of a precision roller end face. Background Technology

[0002] Cylindrical and tapered rollers, widely used in high-speed rail, wind power, and other fields, require high precision and the ability to withstand heavy loads. This necessitates a chamfered transition area between the outer cylindrical surface and the end face of the roller to eliminate stress concentration at hard corners. Traditional roller chamfering methods involve turning or grinding, which still results in noticeable hard corners at the junction of the end face, outer cylindrical surface, and chamfered surface, failing to meet the requirements of high-load, high-precision rollers. Furthermore, traditional methods require clamping each roller, impacting production efficiency. Summary of the Invention

[0003] The purpose of this application is to overcome the above-mentioned technical problems and provide an automatic grinding device for the edge of precision roller end faces that can eliminate hard corners at joints and achieve efficient production.

[0004] An automatic grinding device for the end face edge of a precision roller, comprising: A conveying device includes a conveyor belt that drives rollers to move laterally, wherein the axial direction of the rollers is perpendicular to the conveying direction of the conveyor belt; The abutting mechanism includes a pressure plate parallel to the conveyor belt, and a conveying channel for accommodating rollers is formed between the pressure plate and the conveyor belt. When the rollers are conveyed in the conveying channel, the bottom surface of the pressure plate abuts against the outer surface of the rollers, so that the rollers can rotate while being conveyed horizontally. A grinding mechanism is disposed on one side of the conveying device. The grinding mechanism includes a sanding belt with a grinding zone for contacting the transition area between the outer cylindrical surface and the end face of the roller. The sanding belt in the grinding zone is inclined and forms an acute angle with the end face of the roller. The grinding zone grinds the hard-angle area when the conveying device drives the roller to be conveyed laterally.

[0005] By adopting the above technical solution, the hard angle between the roller end face and the arc surface is eliminated by grinding the inclined area on the sanding belt, achieving a smooth transition, effectively reducing stress concentration during the use of the roller, and enabling batch processing of rollers without clamping each roller, thus improving production efficiency.

[0006] Preferably, the bottom surface of the pressure plate has a soft pad layer. When the pressure plate abuts against the roller, the soft pad layer abuts against the outer surface of the roller to prevent the outer surface from being scratched when the roller moves.

[0007] Preferably, the abutting mechanism further includes a mounting bracket and an elastic element located above the pressure plate. The elastic element is located between the mounting bracket and the pressure plate, with one end connected to the mounting bracket and the other end connected to the top of the pressure plate. The elastic element drives the pressure plate to always have a tendency to elastically press against the outer surface of the roller.

[0008] Preferably, the grinding mechanism further includes an end face support assembly disposed on the side of the conveying device away from the sanding belt, the support assembly including a stop block corresponding to the position of the sanding belt, the side of the stop block facing the conveyor belt abutting against the end face of the roller; When the grinding zone of the abrasive belt grinds the roller, the stop block cooperates with the abrasive belt to support the roller.

[0009] Preferably, the stop block is provided with a plurality of balls on the side facing the conveyor belt, and the balls abut against the end face of the roller.

[0010] Preferably, the grinding mechanism is provided in two sets, which are arranged in a mirror-symmetrical manner on both sides of the conveying device.

[0011] Preferably, the grinding mechanism further includes a mounting base, a sanding belt mounting bracket, and a sanding belt drive component; the mounting base is disposed on the side of the conveying device; the sanding belt mounting bracket is equipped with a sanding belt drive wheel and a sanding belt driven wheel for mounting the sanding belt; the side of the sanding belt facing the conveying device is the grinding zone, and the sanding belt drive component drives the sanding belt drive wheel to rotate, thereby driving the sanding belt to rotate.

[0012] Preferably, the sanding belt mounting bracket is rotatably mounted on the mounting base, and the mounting base is provided with an adjustment component for driving the sanding belt mounting bracket to make adjustments; the adjustment component includes: A sliding rod is slidably mounted on the mounting base; A connecting rod rotatably connects the sliding rod and the sanding belt mounting bracket. When the sliding rod slides, the connecting rod drives the sanding belt mounting bracket to rotate on the mounting base. A linear module, located at the bottom of the mounting base, is used to drive the mounting base to move horizontally.

[0013] Preferably, the abutting mechanism further includes a lifting adjustment mechanism, which includes a lifting seat and a lifting screw rotatably mounted on the lifting seat; the mounting bracket is vertically limited to slide along the lifting seat and is threadedly connected to the lifting screw, so as to drive the pressure plate to move up and down when the lifting screw rotates.

[0014] In summary, this application includes at least one of the following beneficial technical effects: The conveying device drives the roller to be conveyed laterally, and the grinding surface is pressed against the hard corner area for wrap-around grinding, so that the outer circle surface, end face and chamfer surface of the roller can form a smooth transition, eliminating and reducing stress concentration; This device can process roller end faces in batches without clamping each roller individually, thus improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an automatic grinding device for the end face edge of a precision roller in Embodiment 1; Figure 2 This is a schematic diagram of the abutment mechanism in Embodiment 1; Figure 3 This is a schematic diagram showing the state in which the abutment mechanism in Embodiment 1 presses the roller against the conveying device; Figure 4 This is a schematic diagram of the grinding mechanism in Example 1 grinding from one side of the roller; Figure 5 This is a schematic diagram of the abrasive belt assembly in Example 1; Figure 6 This is a schematic diagram of the overall structure of an automatic grinding device for the end face edge of a precision roller in Embodiment 2; Figure 7 This is a schematic diagram of the grinding mechanism in Example 2 grinding from both sides of the roller.

[0016] Explanation of reference numerals in the attached drawings: 1. Conveying device; 11. Conveyor belt; 2. Abutment mechanism; 21. Pressure plate; 22. Mounting bracket; 23. Elastic element; 24. Lifting and adjusting mechanism; 241. Lifting seat; 242. Lifting screw; 243. Lifting motor; 25. Soft pad layer; 26. Guide rod; 3. Grinding mechanism; 31. Sanding belt assembly; 311. Sanding belt; 312. Mounting seat; 313. Sanding belt mounting bracket; 314. Sanding belt drive component; 315. Sanding belt drive wheel; 316. Sanding belt driven wheel; 317. Adjusting component; 3171. Sliding rod; 3172. Connecting rod; 3173. Linear module; 3174. Threaded sleeve; 3175. Roller; 3176. Raceway; 32. Support component; 321. Stop block; 322. Ball bearing. Detailed Implementation

[0017] The present application will be further described in detail below with reference to the accompanying drawings.

[0018] This application discloses an automatic grinding device for the edge of a precision roller end face. Example

[0019] Reference Figure 1An automatic grinding device for the end face edge of a precision roller includes a conveying device 1, a contacting mechanism 2, and a grinding mechanism 3. The conveying device 1 is used to place and horizontally transport the roller. The contacting mechanism 2 presses against the top of the roller, allowing the roller to rotate during horizontal transport. The grinding mechanism 3 is used to grind the hard-angle areas of the roller's end face during horizontal transport.

[0020] As the roller moves horizontally on the conveyor 1, the abutment mechanism 2 presses against the outer circumference of the roller top to apply pressure, causing the roller to rotate while moving. At the same time, during the rotation of the roller, the grinding mechanism 3 located on the side of the conveyor 1 can abut against the hard corner area of ​​the roller end face and grind it to make it smooth.

[0021] Reference Figure 1 The conveying device 1 includes a conveyor belt 11, which is driven to rotate by a motor. A plurality of rollers are placed transversely on the surface of the conveyor belt 11 and can be horizontally conveyed with the conveyor belt 11. The axis of the rollers is perpendicular to the conveying direction of the conveyor belt 11, such that the two end faces of the rollers face the two sides of the conveyor belt 11.

[0022] Reference Figure 2 and Figure 3 The abutment mechanism 2 includes a pressure plate 21, a mounting bracket 22, an elastic element 23, and a lifting and adjusting mechanism 24.

[0023] In this embodiment, the pressure plate 21 is arranged parallel to the surface of the conveyor belt 11 and located above the conveyor belt 11, forming a conveying channel between the pressure plate 21 and the surface of the conveyor belt 11. The roller can be conveyed within the conveying channel, and the lower bottom surface of the pressure plate 21 can abut against the outer circular surface of the roller. The width of the pressure plate 21 is less than the axial length of the roller, so that the two ends of the roller can extend from both sides of the pressure plate 21 when the roller is conveyed within the conveying channel. In this embodiment, the lower bottom surface of the pressure plate 21 has a soft pad layer 25, which is fixed to the lower bottom surface of the pressure plate 21 by adhesive bonding. The soft pad layer 25 can abut against the outer circular surface of the roller to prevent the outer circular surface from being scratched when the roller moves.

[0024] Furthermore, the mounting bracket 22 is positioned above the pressure plate 21 for cantilever mounting of the pressure plate 21. An elastic element 23 is positioned between the mounting bracket 22 and the pressure plate 21. One end of the elastic element 23 is connected to the mounting bracket 22, and the other end is connected to the top of the pressure plate 21. The elastic element 23 drives the pressure plate 21 to always elastically press against the outer surface of the roller. In this embodiment, the elastic element 23 is preferably a compression spring. To facilitate spring installation, a guide rod 26 is fixedly connected to the top of the pressure plate 21. The spring is fitted onto the guide rod 26, and the upper end of the guide rod 26 extends upward through the mounting bracket 22. A limiting sleeve is fixed to the top of the guide rod 26, allowing the guide rod 26 to move up and down within the mounting bracket 22 while being limited by the limiting sleeve, preventing the guide rod 26 from falling off the mounting bracket 22. The elastic element 23 further provides elastic contact with the roller.

[0025] Furthermore, the lifting adjustment mechanism 24 includes a lifting base 241 and a lifting screw 242. The lifting base 241 is fixed to the ground or any workbench. The lifting screw 242 is vertically arranged and rotatably mounted on the lifting base 241, and the outer surface of the lifting screw 242 has threads.

[0026] The mounting bracket 22 slides vertically on the lifting seat 241 and is threadedly connected to the lifting screw 242. A limiting structure exists between the mounting bracket 22 and the lifting seat 241, allowing the mounting bracket 22 to move only vertically and preventing horizontal rotation. In this embodiment, the limiting structure is a square moving groove vertically formed on the lifting seat 241, with one end of the mounting bracket 22 extending into the square moving groove and matching the inner shape of the groove. Simultaneously, a limiting rod is vertically installed within the square moving groove, passing vertically through the mounting bracket 22.

[0027] A lifting motor 243 is mounted on the top of the lifting base 241. The lifting motor 243 is connected to the lifting screw 242 to drive the lifting screw 242 to rotate. Alternatively, a handle can be mounted on the top of the drive screw, and the lifting screw 242 can be rotated manually by turning the handle. In this embodiment, the driving method of the lifting motor 243 is adopted to facilitate precise control.

[0028] The lifting motor 243 drives the lifting screw 242 to rotate, thereby driving the mounting bracket 22 and the pressure plate 21 to adjust their height on the conveyor belt 11 to accommodate rollers of different outer diameters.

[0029] Reference Figure 1 and Figure 4 The grinding mechanism 3 includes a sanding belt assembly 31 and a support assembly 32. The sanding belt assembly 31 and the support assembly 32 are located on both sides of the conveying device 1, respectively. The sanding belt assembly 31 is used to grind the hard corner area of ​​the roller end face, and the support assembly 32 provides support for the roller from the other side of the roller.

[0030] Reference Figure 4 and Figure 5 The sanding belt assembly 31 includes a sanding belt 311, a mounting base 312, a sanding belt mounting bracket 313, and a sanding belt drive component 314. The mounting base 312 is mounted on the ground or a workbench and is located to the side of the conveyor device 1. The sanding belt mounting bracket 313 is rotatably mounted on the mounting base 312, and a sanding belt drive wheel 315 and a sanding belt driven wheel 316 are mounted on the sanding belt mounting bracket 313. The sanding belt 311 is sleeved on the outside of the sanding belt drive wheel 315 and the sanding belt driven wheel 316. The sanding belt drive component 314 is connected to the sanding belt drive wheel 315 through a synchronous belt, and the sanding belt drive component 314 drives the sanding belt drive wheel 315 to rotate, thereby driving the sanding belt 311 to rotate.

[0031] An adjustment component 317 is provided on the mounting base 312. The adjustment component 317 is used to adjust the tilt angle of the sanding belt 311 and the distance between it and the end face of the roller. The adjustment component 317 includes a sliding rod 3171, a connecting rod 3172, and a linear module 3173. The sliding rod 3171 is slidably mounted on the top of the mounting base 312, and there is a sliding limit structure between the sliding rod 3171 and the mounting base 312. The sliding limit structure includes a limit block fixed on the sliding rod 3171 and a limit groove opened on the mounting base 312 for the limit block to slide, so that the sliding rod 3171 can only move horizontally on the mounting base 312 and cannot rotate.

[0032] The two ends of the connecting rod 3172 are hinged to the end of the sliding rod 3171 and the sanding belt mounting bracket 313, respectively. When the sliding rod 3171 moves horizontally, the sanding belt mounting bracket 313 can rotate on the mounting base 312.

[0033] In this embodiment, the horizontal sliding movement of the sliding rod 3171 is driven by a motor. The output end of the motor is connected to a threaded sleeve 3174, which is threadedly connected to the end of the sliding rod 3171 furthest from the connecting rod 3172. When the motor starts, it drives the threaded sleeve 3174 to rotate. Since the rotation of the sliding rod 3171 is restricted, it can move horizontally. The horizontal sliding movement of the sliding rod 3171 can also be driven by other drive structures capable of horizontal movement, which will not be described in detail here.

[0034] The linear module 3173 is located at the bottom of the mounting base 312. The slider on the linear module 3173 is fixedly connected to the mounting base 312, so that the mounting base 312 can move horizontally under the drive of the linear module 3173.

[0035] Furthermore, the mounting base 312 has rollers 3175 on both sides of its bottom, and the linear module 3173 has raceways 3176 on both sides that cooperate with the rollers 3175 and allow the rollers 3175 to roll, so that the mounting base 312 can move more smoothly horizontally.

[0036] The side of the surface of the sanding belt 311 facing the conveying device 1 is the grinding zone. The sanding belt 311 is inclined under the drive of the adjusting component 317, and the grinding zone abuts against the hard angle area of ​​the roller end face. The grinding zone forms an acute angle with the roller end face.

[0037] When grinding rollers with different shaft diameters, the tilt angle of the abrasive belt 311 and the distance between the abrasive belt 311 and the roller are adjusted by adjusting component 317, so that the hard corner area of ​​the roller end face can always be in contact with the grinding area.

[0038] Reference Figure 2 and Figure 4 The support assembly 32 includes a stop block 321 and balls 322. The stop block 321 can be fixed to the ground or a workbench, or it can be installed on the lifting seat 241 of the lifting adjustment mechanism 24. The balls 322 are located in the stop block 321 on the side facing the conveyor belt 11, and the balls 322 can roll on the stop block 321. There are several balls 322, which are horizontally spaced on the stop block 321. The arrangement of the balls 322 reduces the friction between the support assembly 32 and the rollers.

[0039] Reference Figure 4 When the roller moves on the conveyor belt 11, the hard corner area of ​​one end face of the roller abuts against the sanding belt 311 of the sanding belt assembly 31, and the end face of the roller abuts against the ball bearings 322 of the support assembly 32. When the sanding belt 311 grinds the hard corner area of ​​the roller end face, the ball bearings 322 can provide axial support for the roller, making it difficult for the roller to undergo axial displacement on the conveyor belt 11. Example

[0040] The automatic grinding device for the end face edge of a precision roller in Example 2 is the same as that in Example 1, except for the structure of the grinding mechanism 3. It will not be described in detail here.

[0041] Reference Figure 6 and Figure 7 In this embodiment, the grinding mechanism 3 includes two sets of abrasive belt assemblies 31. The two sets of abrasive belt assemblies 31 are mirror-symmetrically arranged on both sides of the conveying device 1 and can respectively abut against the hard corner areas of the end faces of the rollers.

[0042] As the roller moves on the conveyor belt 11, the sanding belt assemblies 31 on both sides can support the roller against each other from both sides, making it less prone to axial movement, and simultaneously grinding the hard corner areas of the end faces on both sides of the roller during the movement.

[0043] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A roller end face edge grinding device. A precision roller end face edge automatic grinding device, characterized in that, include: The conveying device (1) includes a conveyor belt (11) that drives rollers to convey laterally, wherein the axial direction of the rollers is perpendicular to the conveying direction of the conveyor belt (11); The abutting mechanism (2) includes a pressure plate (21) parallel to the conveyor belt (11). A conveying channel for accommodating rollers is formed between the pressure plate (21) and the conveyor belt (11). When the rollers are conveyed in the conveying channel, the bottom surface of the pressure plate (21) abuts against the outer surface of the rollers, so that the rollers can rotate while being conveyed horizontally. The grinding mechanism (3) is located on one side of the conveying device (1). The grinding mechanism (3) includes a sanding belt (311). The sanding belt (311) has a grinding zone for contacting the hard corner area of ​​the roller end face. The sanding belt (311) of the grinding zone is inclined and forms an acute angle with the roller end face. The grinding zone grinds the hard corner area when the conveying device (1) drives the roller to be conveyed laterally.

2. The roller end face edge grinding device according to claim 1, a precision roller end face edge automatic grinding device, characterized in that, The bottom surface of the pressure plate (21) has a soft pad (25). When the pressure plate (21) abuts against the roller, the soft pad (25) abuts against the outer surface of the roller to avoid scratching the outer surface when the roller moves.

3. A roller end face edge grinding device according to claim 2, a precision roller end face edge automatic grinding device, characterized in that, The abutting mechanism (2) further includes a mounting bracket (22) and an elastic element (23) located above the pressure plate (21). The elastic element (23) is located between the mounting bracket (22) and the pressure plate (21). One end of the elastic element (23) is fixedly connected to the mounting bracket (22), and the other end of the elastic element (23) is fixedly connected to the top of the pressure plate (21). The elastic element (23) drives the pressure plate (21) to always have the tendency to elastically press against the outer surface of the roller.

4. A roller end face edge grinding device according to claim 1, a precision roller end face edge automatic grinding device, characterized in that, The grinding mechanism (3) further includes an end face support assembly (32) disposed on the other side of the conveying device (1) away from the sanding belt (311). The support assembly (32) includes a stop block (321) corresponding to the position of the sanding belt (311). The stop block (321) abuts against the end face of the roller on the side facing the conveyor belt (11). When the grinding zone of the abrasive belt (311) grinds the roller, the stop block (321) cooperates with the abrasive belt (311) to support the roller.

5. A roller end face edge grinding device according to claim 4, a precision roller end face edge automatic grinding device, characterized in that, The stop block (321) is provided with a plurality of balls (322) on the side facing the conveyor belt (11), and the balls (322) abut against the end face of the roller.

6. A roller end face edge grinding device according to claim 1, a precision roller end face edge automatic grinding device, characterized in that, The grinding mechanism (3) is provided in two sets, which are mirror-symmetrically arranged on both sides of the conveying device (1).

7. A roller end face edge grinding device according to claim 1, a precision roller end face edge automatic grinding device, characterized in that, The grinding mechanism (3) further includes a mounting base (312), a sanding belt mounting bracket (313), and a sanding belt drive (314); the mounting base (312) is located on the side of the conveying device (1); the sanding belt mounting bracket (313) is equipped with a sanding belt drive wheel (315) and a sanding belt driven wheel (316) for mounting the sanding belt (311); the side of the sanding belt (311) facing the conveying device (1) is the grinding area, and the sanding belt drive (314) drives the sanding belt drive wheel (315) to rotate, so as to drive the sanding belt (311) to rotate.

8. A roller end face edge grinding device according to claim 1, a precision roller end face edge automatic grinding device, characterized in that, The sanding belt mounting bracket (313) is rotatably mounted on the mounting base (312), and the mounting base (312) is provided with an adjustment component (317) for driving the sanding belt mounting bracket (313) to adjust; the adjustment component (317) includes: A sliding rod (3171) is slidably mounted on the mounting base (312); The connecting rod (3172) rotatably connects the sliding rod (3171) and the sanding belt mounting bracket (313). When the sliding rod (3171) slides, the connecting rod (3172) drives the sanding belt mounting bracket (313) to rotate on the mounting base (312). A linear module (3173), located at the bottom of the mounting base (312), is used to drive the mounting base (312) to move horizontally.

9. A roller end face edge grinding device according to claim 3, a precision roller end face edge automatic grinding device, characterized in that, The abutting mechanism (2) further includes a lifting adjustment mechanism (24), which includes a lifting seat (241) and a lifting screw (242) rotatably mounted on the lifting seat (241). The mounting bracket (22) is vertically limited to slide with the lifting seat (241) and is threadedly connected to the lifting screw (242) to drive the pressure plate component (21) to move up and down when the lifting screw (242) rotates.

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