Machining process of bearing ring

Abstract

The invention discloses a machining process of a bearing ring. The machining process comprises the following steps: a, blank manufacturing; b, manufacturing a rough blank; c, turning; and d, finish machining. Bar materials are cut to obtain blanks, then the blanks are machined through a forging machine to obtain rough blanks, the rough blanks are intensively stored and fed into a feeding box of the machining device, the feeding box automatically conveys the rough blanks to a first clamping assembly through a first feeding channel, the first clamping assembly is matched with a first turning part to machine the inner wall face of a ferrule, and the inner wall face of the ferrule is machined through a second turning part. After machining is completed, the ferrule is conveyed to a second clamping assembly through a second feeding channel, the second clamping assembly is matched with a second turning part to machine the outer wall face of the ferrule, and after machining is completed, finish machining is conducted on the ferrule to obtain a finished product. By means of the technology, automatic feeding and discharging of the rough blank are achieved, manual feeding and discharging are not needed, potential safety hazards are eliminated, and the machining efficiency is improved. The inner wall face and the outer wall face of the ferrule are automatically machined, batch production of the ferrule is achieved, and the machining efficiency of the ferrule is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of bearing ring equipment, and in particular relates to a processing technology for a bearing ring. Background Art

[0002] Bearings are an important part of modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. Bearing rings are annular parts of radial rolling bearings with one or more raceways.

[0003] In the prior art, during the processing of bearing rings, the bearing rings are loaded and unloaded manually before and after processing, which can easily cause the position of the workpiece to deviate, and even cause unstable placement, affecting the processing accuracy and quality of the bearing rings. Due to the manual loading and unloading, the processing time is greatly increased and the processing efficiency is reduced. Summary of the invention

[0004] The object of the present invention is to solve the above-mentioned technical problems existing in the prior art, and to provide a processing technology for a bearing ring, wherein a bar is first cut to obtain a blank, and then the blank is processed by a forging machine to obtain a rough blank, and the rough blank is centrally stored and sent to a feeding box of a processing device, and the feeding box automatically transports the rough blank to a clamping component through a feeding channel 1, and the clamping component 1 cooperates with a turning part 1 to process the inner wall surface of the ring, and after the processing is completed, it is transported to a clamping component 2 through a feeding channel 2, and the clamping component 2 cooperates with a turning part 2 to process the outer wall surface of the ring, and after the processing is completed, the ring is finely processed to obtain a finished product, and the feeding box is used to cooperate with the feeding channel 1 and the feeding channel 2 to realize automatic loading and unloading of the rough blank, without the need for manual loading and unloading, thereby improving the processing efficiency and eliminating the potential safety hazards, and the turning part 1 and the turning part 2 respectively process the inner and outer wall surfaces of the ring in turn, complete the processing of the inner and outer wall surfaces of the ring, realize batch processing of the ring, and greatly improve the processing efficiency of the ring.

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

[0006] The processing technology of bearing rings includes the following steps:

[0007] a. Billet manufacturing

[0008] First, the surface of the bar is inspected, and qualified bar is selected. Then the qualified bar is cut by machine tool to obtain the blank of required size.

[0009] b. Rough embryo manufacturing

[0010] The blank is subjected to upsetting, extrusion, punching, skin separation and hole expansion operations in sequence by a forging machine, and then annealing treatment is performed to form a rough blank;

[0011] c. Turning

[0012] 1) Storage

[0013] The rough blanks prepared above are collected and then uniformly sent to a feeding box in a processing device, and the rough blanks are transported through the feeding box;

[0014] 2) Inner wall turning

[0015] The feed box conveys the rough blank to a clamping assembly through a feed channel 1, and the clamping assembly 1 clamps and fixes the outer wall surface of the rough blank, and conveys it to a turning processing station, and the inner wall surface of the rough blank is turned by a turning part 1, and reset after the processing is completed;

[0016] 3) External wall turning

[0017] The first clamping component releases the rough blank, and the pusher pair pushes the rough blank, which is then transported to the second clamping component through the second feeding channel. The second clamping component clamps and fixes the inner wall surface of the rough blank, and the second turning component turns the outer wall surface of the rough blank. After the processing is completed, the rough blank is released and reset, and the second pusher pushes the rough blank out of the processing device.

[0018] d. Finishing

[0019] The rough blank after turning is quenched and high-temperature tempered, and then fine-ground, demagnetized and nitrided in sequence to finally obtain the finished product.

[0020] Furthermore, the processing device includes a processing table, a feeding box, a back plate 1, a back plate 2, a turned part 1, a turned part 2, a feeding channel 1, a feeding channel 2, a clamping assembly 1 and a clamping assembly 2, the back plate 1 and the back plate 2 are both fixedly connected to the processing table, the clamping assembly 1 is arranged between the back plate 1 and the back plate 2, the feeding channel 1 is fixedly connected to one side of the back plate 1, the feeding channel 2 is fixedly connected to one side of the back plate 2, the feeding box is fixedly connected to the top of the back plate 1 corresponding to the feeding channel 1, the clamping assembly 2 is fixedly connected to the end of the back plate 2 away from the back plate 1, the turned part 1 is fixedly connected to the processing table corresponding to the clamping assembly 1, and the turned part 2 is fixedly connected to the processing table corresponding to the clamping assembly 2. The feeding box feeds the rough blank into feeding channel one in turn, and feeding channel one feeds the rough blank into clamping component one in turn. Clamping component one clamps the outer wall of the rough blank, and cooperates with turning part one to process the inner circle of the rough blank. After the processing is completed, it is sent to feeding channel two. Feeding channel two transports the rough blank to clamping component two. Clamping component two clamps the inner wall of the rough blank, and cooperates with turning part two to process the outer wall surface of the rough blank, and then sends it out for fine processing.

[0021] Furthermore, a discharge port 1 is provided at one end of the feeding channel 1 near the clamping assembly 1, a feed port 1 is provided at the other end of the feeding channel 1, a feeding box is provided corresponding to the feed port 1, the feeding channel 1 is provided with a parallel section 1 parallel to the horizontal plane and an inclined section 1 inclined downward, so that the height of the feed port 1 is higher than the height of the discharge port 1, and a limiter 1 is provided at a place near the discharge port of the parallel section 1, and the limiter 1 is used to block the rough blanks. The feeding box feeds the rough blanks into the feed port 1 of the feeding channel 1 one by one, and the setting of the inclined section 1 makes the rough blanks automatically fall to a place in the parallel section, and under the influence of inertia, the rough blanks are automatically transported to a place in the clamping assembly, and then the limiter 1 operates to block the next rough blank to be fed in, and the setting of the limiter 1 plays a role in limiting the rough blanks to be transported, so as to prevent the next rough blank to be transported from colliding with the rough blank at a place in the clamping assembly, and plays a protective role for the rough blank at a place in the clamping assembly.

[0022] Furthermore, a feed port 2 is provided at one end of the feeding channel 2 close to the clamping component 1, and a discharge port 2 is provided at the other end of the feeding channel 1. The clamping component 2 is arranged corresponding to the discharge port 2. The feeding channel 2 is provided with a parallel section 2 parallel to the horizontal plane and an inclined section 2 inclined downward, so that the height of the feed port 2 is higher than the height of the discharge port 2. The parallel section 2 is provided with a limiter 2 corresponding to the clamping component 2, and the limiter 2 is used to block the rough blank. After the rough blank is processed by the turning part 1, it is fed in through the feed port 2 of the feeding channel 2. The rough blank automatically falls to the parallel section 2 through the inclined section 2. Affected by inertia, the rough blank is automatically transported to the clamping component 2, and then the limiter 2 operates to block the next rough blank to be fed in. The setting of the limiter 2 plays a limiting role on the rough blank to be transported, avoiding the collision of the next rough blank to be transported with the rough blank located at the clamping component 2, and plays a protective role on the rough blank located at the clamping component 2.

[0023] Furthermore, the limit member 1 and the limit member 2 both include a mounting frame, an electric push rod and a limit block. The parallel section 1 and the parallel section 2 are correspondingly provided with mounting grooves, the limit block and the mounting groove are matched, the bottom of the parallel section 1 and the parallel section 2 are fixedly connected with the mounting frame, the electric push rod is fixedly connected to the mounting frame, the output end of the electric push rod passes through the parallel section 1 and the parallel section 2 respectively and is located in the mounting groove, the bottom of the limit block is fixedly connected to the output end of the electric push rod, the limit block is located in the mounting groove, and the electric push rod controls the limit block to extend or retract into the mounting groove; when the clamping assembly 1 and the clamping assembly 2 clamp the rough blank, the limit block extends to block the next rough blank. The mounting frame is used to fix the electric push rod. When the rough blank is fed into the clamping component 1 and the clamping component 2, the electric push rod controls the limit block to be pushed out from the mounting groove to limit the next rough blank to be fed in. After the rough blank processing at the clamping component 1 and the clamping component 2 is completed, the electric push rod controls the limit block to retract into the mounting groove, so that the next rough blank is fed into the corresponding clamping component 1 and the clamping component 2.

[0024] Furthermore, the feeding box includes a box body and a support member, the support member is arranged at the bottom of the box body, the bottom of the support member is fixedly connected to the back plate 1, the bottom of the box body is provided with a feeding port, the bottom of the box body is provided with a tilted blanking portion corresponding to the feeding port, the blanking portion is matched with the feeding port 1, the support member includes a fixed block, a telescopic rod and a fixed frame, the bottom of the telescopic rod is fixedly connected to the fixed frame, the fixed frame is fixedly connected to the back plate 1, the fixed block is fixedly connected to the bottom of the box body, the bottom of the fixed block is provided with a rotating seat, the rotating seat and the top of the telescopic rod are rotatably connected through a half-thread screw, the end of the half-thread screw is screwed into a limit nut, and the limit nut is tightened on the rotating seat. The box body is fixedly connected to the back plate 1 through the support member, the feeding port is controlled by the telescopic rod in the support member 1 to match the feeding port 1 of the feeding channel 1, and the rough blanks fall into the feeding channel 1 one by one through the feeding port.

[0025] Furthermore, both the turning part 1 and the turning part 2 include a base, a sliding seat and a tool holder, the tool holder is movably connected to the sliding seat, the tool holder is used to install turning tools, the top of the base is provided with a guide protrusion, the bottom of the sliding seat is correspondingly provided with a guide groove, the guide protrusion and the guide groove are matched, a mounting cavity is provided in the base, a ball screw 1 is rotatably connected in the mounting cavity, a screw slider 1 is fixedly connected to the bottom of the sliding seat, the screw slider 1 is connected to the ball screw 1, one end of the base is fixedly connected to a screw motor 1, and the output end of the screw motor 1 is connected to the ball screw 1. The base is used to fix the turning part 1 and the turning part 2 on the processing table, and the required tool is selected and installed on the tool holder, and the screw motor 1 controls the rotation of the ball screw 1, thereby controlling the sliding frame to drive the tool holder to slide along the guide protrusion.

[0026] Furthermore, the clamping assembly 1 includes a lifting cylinder, a cylinder mounting frame, an adjusting frame, an electric three-jaw chuck 1, a rotating motor 1 and a motor mounting seat. The adjusting frame is movably connected between the back plate 1 and the back plate 2. A through hole 1 is provided at the bottom of the adjusting frame. The electric three-jaw chuck 1 is rotatably connected in the through hole 1. The back of the adjusting frame is fixedly connected with the motor mounting seat. The rotating motor 1 is fixedly connected to the motor mounting seat. The output end of the rotating motor 1 is connected to the electric three-jaw chuck 1. The rotating motor 1 controls the three-jaw chuck to rotate in the through hole 1. The two ends of the cylinder mounting frame are respectively fixedly connected to the back plate 1 and the back plate 2. The lifting cylinder is fixedly connected to the cylinder mounting frame. The output end of the lowering cylinder is fixedly connected to the top of the motor mounting seat, and a supporting part is provided at the bottom of the adjusting frame, and the supporting part is matched with the feeding channel 1 and the feeding channel 2. The supporting part is provided with a limiting groove 1 corresponding to the electric three-jaw chuck 1, and the limiting groove 1 is used to limit the rough blank. A pushing piece 1 is provided on the side of the limiting groove 1 away from the feeding channel 2, and the pushing piece 1 is used to eject the processed rough blank from the limiting groove 1. A notch is provided in the middle of the limiting groove, and the notch matches the claws of the electric three-jaw chuck 1. Blocks are provided on both sides of the top of the adjusting frame, and the block blocks are matched with the feeding channel 1 and the feeding channel 2, and a gap for the rough blank to pass through is formed between the block and the supporting part. When the rough blank is fed into the limiting groove 1, the lifting cylinder controls the adjustment frame to descend, thereby driving the electric three-jaw chuck to descend to the processing height of the turning part 1, and at the same time, the stopper on the upper part of the adjusting frame closes the feeding channel 1 and the feeding channel 2, and then the jaws of the electric three-jaw chuck 1 run synchronously, and the jaws at the bottom rise from the notch, thereby completing the automatic centering clamping of the rough blank. The setting of the notch plays a limiting role on the jaws of the three-jaw chuck, and at the same time prevents the jaws of the three-jaw chuck from affecting the transportation of the rough blank, and the jaws are clamped on the outer wall of the rough blank; the rotating motor 1 controls the electric three-jaw chuck 1 to rotate, and then cooperates with the turning part to process the inner wall surface of the rough blank. After the processing is completed, the lifting cylinder drives the adjustment frame to reset, the electric three-jaw chuck 1 releases the rough blank, and the rough blank located in the limiting groove 1 is ejected to the side of the feeding channel 2 by the ejector 1.

[0027] Furthermore, the second clamping assembly includes a support table, a slide rail, a sliding frame, a screw motor, a ball screw, an electric three-jaw chuck and a rotating motor. The back plate is provided with a through hole near the discharge port. The electric three-jaw chuck is movably connected in the through hole. The support table is fixedly connected to the processing table. The support table is located on the back of the back plate. The slide rail is fixedly connected to the support table. The sliding frame is slidably connected to the slide rail. Both ends of the support table are fixedly connected to fixed plates. A ball screw is rotatably connected between the two fixed plates. The fixed plate located on one side A screw motor is fixedly connected, and the output end of the screw motor is connected to a ball screw. The ball screw is connected to a screw slider. The screw slider is fixedly connected to the bottom of the sliding frame. A rotating motor is fixedly connected to the sliding frame. The output end of the rotating motor is connected to an electric three-jaw chuck. A limiting groove is provided in the feeding channel 2 corresponding to the electric three-jaw chuck 2. The limiting groove is used to limit the rough blank. A push piece is provided on the side of the limiting groove close to the feeding channel 1. The push piece is used to eject the processed rough blank from the limiting groove. After the rough blank is fed into the second limit groove, the second screw motor controls the second ball screw to rotate, thereby driving the sliding frame to slide along the direction of the slide rail, and controls the claws of the second electric three-jaw chuck to extend from the second through hole, so that the claws of the second electric three-jaw chuck are located in the inner hole of the rough blank. The second electric three-jaw chuck runs, and controls the claws to automatically center and tighten in the inner hole of the rough blank. Since the center height of the second electric three-jaw chuck is higher than the center height of the rough blank, when the rough blank is clamped and fixed on the second electric three-jaw chuck, the bottom of the rough blank leaves the second feeding channel, and then the second motor is turned to control the rotation of the second electric three-jaw chuck, and the outer wall surface of the rough blank is processed in cooperation with the second turning part.

[0028] Furthermore, both the push member 1 and the push member 2 include a U-shaped bracket, a push block and a push cylinder. The U-shaped bracket is fixedly connected to the bottom of the feeding channel 1 and the feeding channel 2 respectively. The push cylinder is fixedly connected to the U-shaped bracket. The output end of the push cylinder passes through the feeding channel 1 and the feeding channel 2 and is located in the limit groove. The push block is fixedly connected to the output end of the push cylinder. The U-shaped bracket is used to fix the push cylinder. When the push member 1 and the push member 2 are not in use, the push cylinder controls the push block to retract so that the push block fits in the corresponding limit groove 1 and the limit groove 2, so that the rough blank can be affected by inertia and automatically fall into the corresponding limit groove 1 and the limit groove 2. When the processing is completed, the push cylinder controls the push block to extend to push the rough blank located in the limit groove 1 and the limit groove 2 out to the next process.

[0029] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0030] The present invention prepares blanks by cutting rods first, and then processes the blanks through a forging machine to prepare rough blanks, collects the rough blanks and feeds them into a feeding box of a processing device, the feeding box automatically transports the rough blanks to a clamping component through a feeding channel 1, the clamping component 1 cooperates with a turning part 1 to process the inner wall surface of the ferrule, and after the processing is completed, the rough blanks are transported to a clamping component 2 through a feeding channel 2, the clamping component 2 cooperates with a turning part 2 to process the outer wall surface of the ferrule, and after the processing is completed, the ferrule is finely processed to obtain a finished product, the feeding box is used to cooperate with the feeding channel 1 and the feeding channel 2, the rough blanks are automatically loaded and unloaded, there is no need to use manual loading and unloading, the processing efficiency is improved, and the safety hazard is eliminated, the turning part 1 and the turning part 2 respectively process the inner and outer wall surfaces of the ferrule in turn, complete the processing of the inner and outer wall surfaces of the ferrule, realize batch processing of the ferrule, and greatly improve the processing efficiency of the ferrule.

[0031] The clamping assembly 1 in the present invention comprises a lifting cylinder, a cylinder mounting frame, an adjusting frame, an electric three-jaw chuck 1, a rotating motor 1 and a motor mounting seat. The adjusting frame is movably connected between a back plate 1 and a back plate 2. A through hole 1 is provided at the bottom of the adjusting frame. The electric three-jaw chuck 1 is rotatably connected in the through hole 1. The back of the adjusting frame is fixedly connected with the motor mounting seat. The rotating motor 1 is fixedly connected to the motor mounting seat. The output end of the rotating motor 1 is connected to the electric three-jaw chuck 1. The rotating motor 1 controls the three-jaw chuck to rotate in the through hole 1. The two ends of the cylinder mounting frame are respectively fixedly connected to the back plate 1 and the back plate 2. The lifting cylinder is fixedly connected to the cylinder mounting frame. The output end of the lowering cylinder is fixedly connected to the top of the motor mounting seat, and a supporting part is provided at the bottom of the adjusting frame, and the supporting part is matched with the feeding channel 1 and the feeding channel 2. The supporting part is provided with a limiting groove 1 corresponding to the electric three-jaw chuck 1, and the limiting groove 1 is used to limit the rough blank. A pushing piece 1 is provided on the side of the limiting groove 1 away from the feeding channel 2, and the pushing piece 1 is used to eject the processed rough blank from the limiting groove 1. A notch is provided in the middle of the limiting groove, and the notch matches the claws of the electric three-jaw chuck 1. Blocks are provided on both sides of the top of the adjusting frame, and the block blocks are matched with the feeding channel 1 and the feeding channel 2, and a gap for the rough blank to pass through is formed between the block and the supporting part. When the rough blank is fed into the limiting groove 1, the lifting cylinder controls the adjustment frame to descend, thereby driving the electric three-jaw chuck to descend to the processing height of the turning part 1, and at the same time, the stopper on the upper part of the adjusting frame closes the feeding channel 1 and the feeding channel 2, and then the jaws of the electric three-jaw chuck 1 run synchronously, and the jaws at the bottom rise from the notch, thereby completing the automatic centering clamping of the rough blank. The setting of the notch plays a limiting role on the jaws of the three-jaw chuck, and at the same time prevents the jaws of the three-jaw chuck from affecting the transportation of the rough blank, and the jaws are clamped on the outer wall of the rough blank; the rotating motor 1 controls the electric three-jaw chuck 1 to rotate, and then cooperates with the turning part to process the inner wall surface of the rough blank. After the processing is completed, the lifting cylinder drives the adjustment frame to reset, the electric three-jaw chuck 1 releases the rough blank, and the rough blank located in the limiting groove 1 is ejected to the side of the feeding channel 2 by the ejector 1.

[0032] The clamping assembly 2 in the present invention comprises a support table, a slide rail, a sliding frame, a screw motor 2, a ball screw 2, an electric three-jaw chuck 2 and a rotating motor 2. The back plate 2 is provided with a through hole 2 near the discharge port 2. The electric three-jaw chuck 2 is movably connected in the through hole 2. The support table is fixedly connected to the processing table. The support table is located on the back of the back plate 2. The slide rail is fixedly connected to the support table. The sliding frame is slidably connected to the slide rail. Both ends of the support table are fixedly connected to fixed plates. A ball screw 2 is rotatably connected between the two fixed plates. The fixed plate located on one side A screw motor is fixedly connected, and the output end of the screw motor is connected to a ball screw. The ball screw is connected to a screw slider. The screw slider is fixedly connected to the bottom of the sliding frame. A rotating motor is fixedly connected to the sliding frame. The output end of the rotating motor is connected to an electric three-jaw chuck. A limiting groove is provided in the feeding channel 2 corresponding to the electric three-jaw chuck 2. The limiting groove is used to limit the rough blank. A push piece is provided on the side of the limiting groove close to the feeding channel 1. The push piece is used to eject the processed rough blank from the limiting groove. After the rough blank is fed into the second limit groove, the second screw motor controls the second ball screw to rotate, thereby driving the sliding frame to slide along the direction of the slide rail, and controls the claws of the second electric three-jaw chuck to extend from the second through hole, so that the claws of the second electric three-jaw chuck are located in the inner hole of the rough blank. The second electric three-jaw chuck runs, and controls the claws to automatically center and tighten in the inner hole of the rough blank. Since the center height of the second electric three-jaw chuck is higher than the center height of the rough blank, when the rough blank is clamped and fixed on the second electric three-jaw chuck, the bottom of the rough blank leaves the second feeding channel, and then the second motor is turned to control the rotation of the second electric three-jaw chuck, and the outer wall surface of the rough blank is processed in cooperation with the second turning part. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings:

[0034] Figure 1 It is a structural schematic diagram of the present invention at a point where a rough blank is fed into a clamping assembly;

[0035] Figure 2 It is a structural schematic diagram of the present invention in which the clamping assembly 1 controls the processing height from the rough blank to the turned part 1;

[0036] Figure 3 It is a structural schematic diagram of a pair of rough blanks of a turned part in the present invention;

[0037] Figure 4 It is a structural schematic diagram of the present invention in which the rough blank is conveyed to the second clamping assembly;

[0038] Figure 5 It is a structural schematic diagram of the present invention in the process of processing two pairs of rough blanks of a turned part;

[0039] Figure 6It is a structural schematic diagram of the processing device in the present invention;

[0040] Figure 7 It is a schematic diagram of the structure of the back plate 1 and the back plate 2 in the present invention;

[0041] Figure 8 for Figure 7 The enlarged structural diagram at A in the middle;

[0042] Fig. 9 It is a structural schematic diagram of the feeding box in the present invention;

[0043] Fig.10 It is a schematic structural diagram of a turning part 1 and a turning part 2 in the present invention;

[0044] Fig.11 It is a structural schematic diagram of the clamping assembly 1 in the present invention;

[0045] Fig.12 It is a schematic structural diagram of the clamping assembly 2 in the present invention.

[0046] In the figure, 1-processing table; 2-feeding box; 3-back plate 1; 4-back plate 2; 5-turned part 1; 6-turned part 2; 7-feeding channel 1; 8-feeding channel 2; 9-clamping assembly 1; 10-clamping assembly 2; 11-discharge port 1; 12-feeding port 1; 13-parallel section 1; 14-inclined section 1; 15-limiting member 1; 16-feeding port 2; 17-discharge port 2; 18-parallel section 2; 19-inclined section 2; 20-limiting member 2; 21-mounting frame; 22-electric push rod; 23-limiting block; 24-mounting slot; 25-box; 26-support member; 27-feeding port; 28-feeding part; 29-fixing block; 30-telescopic rod; 31-fixing frame; 32-rotating seat; 33-half-thread screw; 34-limiting nut; 35-base; 36- Sliding seat; 37-tool holder; 38-guide protrusion; 39-guide groove; 40-installation cavity; 41-ball screw one; 42-screw motor one; 43-lifting cylinder; 44-cylinder mounting frame; 45-adjusting frame; 46-electric three-jaw chuck one; 47-rotating motor one; 48-motor mounting seat; 49-through hole one; 50-rough blank; 51-supporting part; 52-limiting groove one; 53-thrust piece one; 54-notch; 55-stopper; 56-support table; 57-slide rail; 58-sliding frame; 59-screw motor two; 60-ball screw two; 61-electric three-jaw chuck two; 62-rotating motor two; 63-through hole two; 64-fixed plate; 65-limiting groove two; 66-thrust piece two; 67-U-shaped bracket; 68-thrust block; 69-thrust cylinder. DETAILED DESCRIPTION

[0047] like Figures 1 to 12 As shown, the processing technology of the bearing ring of the present invention includes the following steps:

[0048] a. Billet manufacturing

[0049] First, the surface of the bar is inspected, and qualified bar is selected. Then the qualified bar is cut by machine tool to obtain the blank of required size.

[0050] b. Rough embryo manufacturing

[0051] The blank is subjected to upsetting, extrusion, punching, skin separation and hole expansion operations in sequence by a forging machine, and then annealing treatment is performed to form a rough blank;

[0052] c. Turning

[0053] 1) Storage

[0054] The rough blanks prepared above are collected and then uniformly sent to a feeding box in a processing device, and the rough blanks are transported through the feeding box;

[0055] 2) Inner wall turning

[0056] The feed box conveys the rough blank to a clamping assembly through a feed channel 1, and the clamping assembly 1 clamps and fixes the outer wall surface of the rough blank, and conveys it to a turning processing station, and the inner wall surface of the rough blank is turned by a turning part 1, and reset after the processing is completed;

[0057] 3) External wall turning

[0058] The first clamping component releases the rough blank, and the pusher pair pushes the rough blank, which is then transported to the second clamping component through the second feeding channel. The second clamping component clamps and fixes the inner wall surface of the rough blank, and the second turning component turns the outer wall surface of the rough blank. After the processing is completed, the rough blank is released and reset, and the second pusher pushes the rough blank out of the processing device.

[0059] d. Finishing

[0060] The rough blank after turning is quenched and high-temperature tempered, and then fine-ground, demagnetized and nitrided in sequence to finally obtain the finished product.

[0061] The processing device includes a processing table 1, a feeding box 2, a back plate 3, a back plate 4, a turning part 5, a turning part 6, a feeding channel 17, a feeding channel 28, a clamping assembly 9 and a clamping assembly 2 10. The back plate 3 and the back plate 4 are both fixedly connected to the processing table 1, the clamping assembly 9 is arranged between the back plate 3 and the back plate 4, the feeding channel 7 is fixedly connected to one side of the back plate 3, the feeding channel 28 is fixedly connected to one side of the back plate 4, the feeding box 2 is fixedly connected to the top of the back plate 3 corresponding to the feeding channel 7, the clamping assembly 20 is fixedly connected to the end of the back plate 4 away from the back plate 3, the turning part 5 is fixedly connected to the processing table 1 corresponding to the clamping assembly 9, and the turning part 26 is fixedly connected to the processing table 1 corresponding to the clamping assembly 2 10. The feeding box 2 feeds the rough blank 50 into the feeding channel 7 in turn, and the feeding channel 7 feeds the rough blank 50 into the clamping component 9 in turn. The clamping component 9 clamps the outer wall of the rough blank 50, and cooperates with the turning part 5 to process the inner circle of the rough blank 50. After the processing is completed, it is sent to the feeding channel 8. The feeding channel 8 transports the rough blank 50 to the clamping component 10. The clamping component 10 clamps the inner wall of the rough blank 50, and cooperates with the turning part 6 to process the outer wall surface of the rough blank 50, and then sends it out for fine processing.

[0062] A discharge port 11 is provided at one end of the feeding channel 7 close to the clamping assembly 9, a feed port 12 is provided at the other end of the feeding channel 7, a feeding box 2 is arranged corresponding to the feed port 12, and the feeding channel 7 is provided with a parallel section 13 parallel to the horizontal plane and an inclined section 14 inclined downward, so that the height of the feed port 12 is higher than the height of the discharge port 11, and a limiter 15 is provided at the parallel section 13 close to the discharge port 11, and the limiter 15 is used to block the rough blank 50. The feeding box 2 feeds the rough blanks 50 one by one into the feeding port 12 of the feeding channel 7. The setting of the inclined section 14 makes the rough blanks 50 automatically fall to the parallel section 13. Under the influence of inertia, the rough blanks 50 are automatically transported to the clamping assembly 9, and then the limiter 15 runs to block the next rough blank 50 to be fed in. The setting of the limiter 15 has a limiting effect on the transported rough blanks 50, avoiding the next transported rough blank 50 from colliding with the rough blank 50 located at the clamping assembly 9, and playing a protective role for the rough blanks 50 located at the clamping assembly 9.

[0063] A feed port 16 is provided at one end of the feeding channel 8 close to the clamping component 19, a discharge port 17 is provided at the other end of the feeding channel 7, the clamping component 10 is arranged corresponding to the discharge port 17, the feeding channel 8 is provided with a parallel section 18 parallel to the horizontal plane and an inclined section 19 inclined downward, so that the height of the feed port 16 is higher than the height of the discharge port 17, the parallel section 18 is provided with a limit piece 20 corresponding to the clamping component 10, and the limit piece 20 is used to block the rough blank 50. After the rough blank 50 is processed by the turning part 5, it is fed into the feeding port 16 of the feeding channel 8. The rough blank 50 automatically falls to the parallel section 18 through the inclined section 19. Under the influence of inertia, the rough blank 50 is automatically transported to the clamping assembly 10, and then the limiter 20 runs to block the next rough blank 50 to be fed in. The setting of the limiter 20 plays a limiting role on the transported rough blank 50, avoiding the collision of the next transported rough blank 50 with the rough blank 50 located at the clamping assembly 10, and playing a protective role for the rough blank 50 located at the clamping assembly 10.

[0064] The limiting member 15 and the limiting member 20 both include a mounting frame 21, an electric push rod 22 and a limiting block 23. The parallel section 13 and the parallel section 2 18 are correspondingly provided with a mounting groove 24. The limiting block 23 and the mounting groove 24 are matched and arranged. The bottoms of the parallel section 13 and the parallel section 2 18 are fixedly connected with the mounting frame 21. The electric push rod 22 is fixedly connected to the mounting frame 21. The output ends of the electric push rod 22 pass through the parallel section 13 and the parallel section 2 18 respectively and are located in the mounting groove 24. The bottom of the limiting block 23 is fixedly connected to the output end of the electric push rod 22. The limiting block 23 is located in the mounting groove 24. The electric push rod 22 controls the limiting block 23 to extend or retract into the mounting groove 24. When the clamping assembly 1 9 and the clamping assembly 2 10 clamp the rough blank 50, the limiting block 23 extends out to block the next rough blank 50. The mounting frame 21 is used to fix the electric push rod 22. When the rough blank 50 is sent to the clamping component 1 9 and the clamping component 2 10, the electric push rod 22 controls the limit block 23 to be pushed out from the mounting groove 24 to limit the next rough blank 50 to be sent in. After the rough blank 50 at the clamping component 1 9 and the clamping component 2 10 is processed, the electric push rod 22 controls the limit block 23 to retract into the mounting groove 24, so that the next rough blank 50 is sent to the corresponding clamping component 1 9 and the clamping component 2 10.

[0065] The feeding box 2 includes a box body 25 and a support member 26. The support member 26 is arranged at the bottom of the box body 25. The bottom of the support member 26 is fixedly connected to the back plate 3. A discharge port 27 is provided at the bottom of the box body 25. An inclined discharge portion 28 is provided at the bottom of the box body 25 corresponding to the discharge port 27. The discharge portion 28 is matched with the feed port 12. The support member 26 includes a fixed block 29, a telescopic rod 30 and a fixed frame 31. The bottom of the telescopic rod 30 is fixedly connected to the fixed frame 31. The fixed frame 31 is fixedly connected to the back plate 3. The fixed block 29 is fixedly connected to the bottom of the box body 25. A rotating seat 32 is provided at the bottom of the fixed block 29. The rotating seat 32 is rotatably connected to the top of the telescopic rod 30 through a half-thread screw 33. The end of the half-thread screw 33 is screwed into a limiting nut 34, and the limiting nut 34 is tightened on the rotating seat 32. The box body 25 is fixedly connected to the back plate 3 through the support member 26. The discharge port 27 is controlled by the telescopic rod 30 in the support member 26 to match the feed port 12 of the feed channel 7. The rough blanks 50 fall into the feed channel 7 one by one through the discharge port 27.

[0066] The turning part 1 5 and the turning part 2 6 both include a base 35, a sliding seat 36 and a tool holder 37. The tool holder 37 is movably connected to the sliding seat 36. The tool holder 37 is used to install a turning tool. A guide protrusion 38 is provided on the top of the base 35, and a guide groove 39 is correspondingly provided at the bottom of the sliding seat 36. The guide protrusion 38 and the guide groove 39 are matched. A mounting cavity 40 is provided in the base 35, and a ball screw 41 is rotatably connected in the mounting cavity 40. A screw slider 1 is fixedly connected to the bottom of the sliding seat 36, and the screw slider 1 is connected to the ball screw 41. A screw motor 42 is fixedly connected to one end of the base 35, and the output end of the screw motor 42 is connected to the ball screw 41. The base 35 is used to fix the turning parts 1 5 and 2 6 on the processing table 1. By selecting the required tools and installing them on the tool holder 37, the screw motor 1 42 controls the ball screw 1 41 to rotate, thereby controlling the sliding frame to drive the tool holder 37 to slide along the guide protrusion 38.

[0067] The clamping assembly 9 includes a lifting cylinder 43, a cylinder mounting frame 44, an adjusting frame 45, an electric three-jaw chuck 46, a rotating motor 47 and a motor mounting seat 48. The adjusting frame 45 is movably connected between the back plate 3 and the back plate 4. A through hole 49 is provided at the bottom of the adjusting frame 45. The electric three-jaw chuck 46 is rotatably connected in the through hole 49. The back of the adjusting frame 45 is fixedly connected with the motor mounting seat 48. The rotating motor 47 is fixedly connected to the motor mounting seat 48. The output end of the rotating motor 47 is connected to the electric three-jaw chuck 46. The rotating motor 47 controls the three-jaw chuck to rotate in the through hole 49. The two ends of the cylinder mounting frame 44 are respectively fixedly connected to the back plate 3 and the back plate 4. The lifting cylinder 43 is fixedly connected to the cylinder mounting frame 44. The lifting cylinder 4 The output end of 3 is fixedly connected to the top of the motor mounting seat 48, and a supporting part 51 is provided at the bottom of the adjusting frame 45. The supporting part 51 is matched with the feeding channel 1 7 and the feeding channel 2 8. The supporting part 51 is provided with a limiting groove 52 corresponding to the electric three-jaw chuck 46. The limiting groove 52 is used to limit the rough blank 50. A push piece 53 is provided on the side of the limiting groove 52 away from the feeding channel 2 8. The push piece 53 is used to eject the processed rough blank 50 from the limiting groove 52. A notch 54 is provided in the middle of the limiting groove. The notch 54 matches the claws of the electric three-jaw chuck 46. Stoppers 55 are provided on both sides of the top of the adjusting frame 45. The stoppers 55 are matched with the feeding channel 1 7 and the feeding channel 2 8. A gap for the rough blank 50 to pass through is formed between the stoppers 55 and the supporting part 51. When the rough blank 50 is fed into the limiting groove 52, the lifting cylinder 43 controls the adjustment frame 45 to descend, thereby driving the electric three-jaw chuck 46 to descend to the processing height of the turned part 5. At the same time, the stopper 55 on the upper part of the adjustment frame 45 closes the feeding channel 7 and the feeding channel 8. Then the claws of the electric three-jaw chuck 46 operate synchronously, and the claws at the bottom rise from the notch 54, thereby completing the automatic centering clamping of the rough blank 50. The setting of the notch 54 has an effect on the claws of the three-jaw chuck. The three-jaw chuck 46 is rotated to control the rotation of the electric three-jaw chuck 46, and then cooperates with the turning part 5 to process the inner wall of the rough blank 50. After the processing is completed, the lifting cylinder 43 drives the adjusting frame 45 to reset, and the electric three-jaw chuck 46 releases the rough blank 50, and the rough blank 50 located in the limiting groove 52 is ejected to the side of the feeding channel 2 8 by the pushing part 53.

[0068] The clamping assembly 10 includes a support table 56, a slide rail 57, a sliding frame 58, a screw motor 59, a ball screw 60, an electric three-jaw chuck 61 and a rotating motor 62. The back plate 4 is provided with a through hole 63 near the discharge port 17. The electric three-jaw chuck 61 is movably connected in the through hole 63. The support table 56 is fixedly connected to the processing table 1. The support table 56 is located on the back of the back plate 4. The slide rail 57 is fixedly connected to the support table 56. The sliding frame 58 is slidably connected to the slide rail 57. Both ends of the support table 56 are fixedly connected to fixed plates 64. A ball screw 60 is rotatably connected between the two fixed plates 64. The fixed plate 64 is located on one side. The fixed plate 64 is fixedly connected to a screw motor 59, the output end of the screw motor 59 is connected to a ball screw 60, the ball screw 60 is connected to a screw slider 2, the screw slider 2 is fixedly connected to the bottom of the sliding frame 58, the sliding frame 58 is fixedly connected to a rotating motor 62, the output end of the rotating motor 62 is connected to an electric three-jaw chuck 61, the feeding channel 8 is provided with a limiting groove 65 corresponding to the electric three-jaw chuck 61, the limiting groove 65 is used to limit the rough blank 50, the limiting groove 65 is provided with a push piece 66 on the side close to the feeding channel 1 7, the push piece 66 is used to eject the processed rough blank 50 from the limiting groove 65. After the rough blank 50 is fed into the second limiting groove 65, the screw motor 59 controls the ball screw 60 to rotate, thereby driving the sliding frame 58 to slide along the direction of the slide rail 57, and controls the claws of the electric three-jaw chuck 61 to extend from the through hole 63, so that the claws of the electric three-jaw chuck 61 are located in the inner hole of the rough blank 50. The electric three-jaw chuck 61 runs, and controls the claws to automatically center and tighten in the inner hole of the rough blank 50. Since the center height of the electric three-jaw chuck 61 is higher than the center height of the rough blank 50, when the rough blank 50 is clamped and fixed on the electric three-jaw chuck 61, the bottom of the rough blank 50 leaves the feeding channel 8, and then the motor 62 is rotated to control the electric three-jaw chuck 61 to rotate, and the outer wall surface of the rough blank 50 is processed in cooperation with the turning part 6.

[0069] The pushing member 1 53 and the pushing member 2 66 both include a U-shaped bracket 67, a pushing block 68 and a pushing cylinder 69. The U-shaped bracket 67 is fixedly connected to the bottom of the feeding channel 1 7 and the feeding channel 2 8 respectively. The pushing cylinder 69 is fixedly connected to the U-shaped bracket 67. The output end of the pushing cylinder 69 passes through the feeding channel 1 7 and the feeding channel 2 8 and is located in the limit groove. The pushing block 68 is fixedly connected to the output end of the pushing cylinder 69. The U-shaped bracket 67 is used to fix the push cylinder 69. When the push member 1 53 and the push member 2 66 are not in use, the push cylinder 69 controls the push block 68 to retract, so that the push block 68 fits in the corresponding limit groove 1 52 and the limit groove 2 65, so that the rough blank 50 can be affected by inertia and automatically fall into the corresponding limit groove 1 52 and the limit groove 2 65. When the processing is completed, the push cylinder 69 controls the push block 68 to extend, and the rough blank 50 located in the limit groove 1 52 and the limit groove 2 65 is ejected to the next process.

[0070] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. The processing technology of bearing ring is characterized by The steps include: a. Billet manufacturing First, the surface of the bar is inspected, and qualified bar is selected. Then the qualified bar is cut by machine tool to obtain the blank of the required size. b. Rough embryo manufacturing The blank is subjected to upsetting, extrusion, punching, skin separation and hole expansion operations in sequence by a forging machine, and then annealing treatment is performed to form a rough blank; c. Turning 1) Storage The rough blanks prepared above are collected and then uniformly sent to a feeding box in a processing device, and the rough blanks are transported through the feeding box; 2) Inner wall turning The feed box conveys the rough blank to a clamping assembly through a feed channel 1, and the clamping assembly 1 clamps and fixes the outer wall surface of the rough blank, and conveys it to a turning processing station, and the inner wall surface of the rough blank is turned by a turning part 1, and reset after the processing is completed; 3) External wall turning The first clamping component releases the rough blank, and the pusher pair pushes the rough blank, which is then transported to the second clamping component through the second feeding channel. The second clamping component clamps and fixes the inner wall surface of the rough blank, and the second turning component turns the outer wall surface of the rough blank. After the processing is completed, the rough blank is released and reset, and the second pusher pushes the rough blank out of the processing device. d. Finishing The rough blank after turning is quenched and high-temperature tempered, and then fine-ground, demagnetized and nitrided in sequence to finally obtain the finished product.

2. The processing technology of the bearing ring according to claim 1 is characterized in that: The processing device includes a processing table, a feeding box, a back plate 1, a back plate 2, a turning part 1, a turning part 2, a feeding channel 1, a feeding channel 2, a clamping assembly 1 and a clamping assembly 2, the back plate 1 and the back plate 2 are both fixedly connected to the processing table, the feeding channel 1 is fixedly connected to one side of the back plate 1, the feeding channel 2 is fixedly connected to one side of the back plate 2, the clamping assembly 1 is arranged between the back plate 1 and the back plate 2, and connects the feeding channel 1 and the feeding channel 2, the feeding box is fixedly connected to the top of the back plate 1 corresponding to the feeding channel 1, the clamping assembly 2 is fixedly connected to an end of the back plate 2 away from the back plate 1, the turning part 1 is fixedly connected to the processing table corresponding to the clamping assembly 1, and the turning part 2 is fixedly connected to the processing table corresponding to the clamping assembly 2.

3. The processing technology of the bearing ring according to claim 2 is characterized in that: The feeding channel 1 is provided with a discharge port 1 at one end close to the clamping assembly 1, and the other end of the feeding channel 1 is provided with a feed port 1. The feeding box is arranged corresponding to the feed port 1. The feeding channel 1 is provided with a parallel section 1 parallel to the horizontal plane and an inclined section 1 inclined downward, so that the height of the feed port 1 is higher than the height of the discharge port 1. A limit piece 1 is provided at a place of the parallel section 1 close to the discharge port, and the limit piece 1 is used to block the rough blank.

4. The processing technology for the bearing ring according to claim 4 is characterized in that: The second feeding channel is provided with a second feed port at one end close to the first clamping component, and a second discharge port is provided at the other end of the first feeding channel. The second clamping component is arranged corresponding to the second discharge port. The second feeding channel is provided with a second parallel section parallel to the horizontal plane and a second inclined section inclined downward, so that the height of the second feed port is higher than the height of the second discharge port. The second parallel section is provided with a second limiter corresponding to the second clamping component, and the second limiter is used to block the rough blank.

5. The processing technology for the bearing ring according to claim 5 is characterized in that: The limiting member 1 and the limiting member 2 both include a mounting frame, an electric push rod and a limiting block. The parallel section 1 and the parallel section 2 are correspondingly provided with mounting grooves, and the limiting block is matched with the mounting grooves. The bottoms of the parallel section 1 and the parallel section 2 are fixedly connected with a mounting frame, and the electric push rod is fixedly connected to the mounting frame. The output ends of the electric push rod pass through the parallel section 1 and the parallel section 2 respectively and are located in the mounting grooves. The bottom of the limiting block is fixedly connected to the output end of the electric push rod, and the limiting block is located in the mounting groove. The electric push rod controls the limiting block to extend or retract into the mounting groove. When the clamping assembly 1 and the clamping assembly 2 clamp the rough blank, the limiting block extends to block the next rough blank.

6. The processing technology for the bearing ring according to claim 3 is characterized in that: The feeding box includes a box body and a support member, the support member is arranged at the bottom of the box body, the bottom of the support member is fixedly connected to the back plate, the bottom of the box body is provided with a discharge port, the bottom of the box body is provided with an inclined discharge portion corresponding to the discharge port, the discharge portion is matched with the feed port, the support member includes a fixed block, a telescopic rod and a fixed frame, the bottom of the telescopic rod is fixedly connected to the fixed frame, the fixed frame is fixedly connected to the back plate, the fixed block is fixedly connected to the bottom of the box body, the bottom of the fixed block is provided with a rotating seat, the rotating seat and the top of the telescopic rod are rotatably connected through a half-tooth screw, the end of the half-tooth screw is screwed into a limiting nut, and the limiting nut is tightened on the rotating seat.

7. The processing technology for the bearing ring according to claim 1 is characterized in that: The turning part 1 and the turning part 2 both include a base, a sliding seat and a tool holder, the tool holder is movably connected to the sliding seat, the tool holder is used to install a turning tool, the top of the base is provided with a guide protrusion, the bottom of the sliding seat is correspondingly provided with a guide groove, the guide protrusion is matched with the guide groove, an installation cavity is provided in the base, a ball screw 1 is rotatably connected in the installation cavity, a screw slider 1 is fixedly connected to the bottom of the sliding seat, the screw slider 1 is connected to the ball screw 1, one end of the base is fixedly connected to a screw motor 1, and the output end of the screw motor 1 is connected to the ball screw 1.

8. The processing technology for the bearing ring according to claim 2 is characterized in that: The clamping assembly 1 includes a lifting cylinder, a cylinder mounting frame, an adjusting frame, an electric three-jaw chuck 1, a rotating motor 1 and a motor mounting seat. The adjusting frame is movably connected between the back plate 1 and the back plate 2. A through hole 1 is provided at the bottom of the adjusting frame. The electric three-jaw chuck 1 is rotatably connected in the through hole 1. The back of the adjusting frame is fixedly connected with a motor mounting seat. The rotating motor 1 is fixedly connected to the motor mounting seat. The output end of the rotating motor 1 is connected to the electric three-jaw chuck 1. The rotating motor 1 controls the three-jaw chuck to rotate in the through hole 1. The two ends of the cylinder mounting frame are respectively fixedly connected to the back plate 1 and the back plate 2. The lifting cylinder is fixedly connected to the cylinder mounting frame. The output end of the cylinder is fixedly connected to the top of the motor mounting seat, and a supporting part is provided at the bottom of the adjusting frame, and the supporting part is matched with the feeding channel 1 and the feeding channel 2, and the supporting part is provided with a limiting groove 1 corresponding to the electric three-jaw chuck 1, and the limiting groove 1 is used to limit the rough blank, and a pushing piece 1 is provided on the side of the limiting groove 1 away from the feeding channel 2, and the pushing piece 1 is used to eject the processed rough blank from the limiting groove 1, and a notch is provided in the middle of the limiting groove, and the notch matches the claws of the electric three-jaw chuck 1, and blocks are provided on both sides of the top of the adjusting frame, and the blocks are matched with the feeding channel 1 and the feeding channel 2, and a gap for the rough blank to pass through is formed between the block and the supporting part.

9. The processing technology for the bearing ring according to claim 8, characterized in that: The second clamping assembly includes a support table, a slide rail, a sliding frame, a screw motor, a ball screw, an electric three-jaw chuck and a rotating motor. The second back plate is provided with a through hole near the second discharge port. The second electric three-jaw chuck is movably connected in the through hole. The support table is fixedly connected to the processing table. The support table is located on the back side of the second back plate. The slide rail is fixedly connected to the support table. The sliding frame is slidably connected to the slide rail. Both ends of the support table are fixedly connected to fixed plates. A ball screw is rotatably connected between the two fixed plates. The fixed plate on one side is fixedly connected to the processing table. A screw motor is fixedly connected thereto, the output end of the screw motor is connected to the ball screw, the ball screw is connected to a screw slider, the screw slider is fixedly connected to the bottom of the sliding frame, the sliding frame is fixedly connected to a rotating motor, the output end of the rotating motor is connected to the electric three-jaw chuck, the feeding channel is provided with a limiting groove corresponding to the electric three-jaw chuck, the limiting groove is used to limit the rough blank, the limiting groove is provided with a push piece on the side close to the feeding channel, the push piece is used to eject the processed rough blank from the limiting groove.

10. The processing technology of the bearing ring according to claim 9, characterized in that: The pushing member 1 and the pushing member 2 both include a U-shaped bracket, a pushing block and a pushing cylinder. The U-shaped bracket is fixedly connected to the bottom of the feeding channel 1 and the feeding channel 2, respectively. The pushing cylinder is fixedly connected to the U-shaped bracket. The output end of the pushing cylinder passes through the feeding channel 1 and the feeding channel 2 and is located in the corresponding limiting groove 1 and the limiting groove 2. The pushing block is fixedly connected to the output end of the pushing cylinder.

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