A forging production line for the inner and outer rings of bearings

Abstract

The present invention discloses a forging production line for inner and outer rings of bearings, comprising a forging device, a cutting device, a flattening device, a ring rolling device, a discharging device and a workpiece slideway. The devices are arranged in sequence along a straight line and are connected to each other through the workpiece slideway. Robots are installed near the forging device, the cutting device, the flattening device and the ring rolling device. The ring rolling device comprises an outer ring rolling mechanism, an inner ring rolling mechanism and a synchronous ring rolling power mechanism. The outer ring rolling mechanism is fixedly installed on the ground, and the inner ring rolling mechanism is movably installed on the ground. The outer ring rolling mechanism and the inner ring rolling mechanism can be connected together through the synchronous ring rolling power mechanism. The production line of the present invention can simultaneously process the blanks of the inner and outer rings of the bearings. One raw material can be circulated at one time to produce a set of bearing outer rings and bearing inner rings. The present invention has the advantages of high degree of automation. The production line of the present invention can greatly reduce material waste and has the advantages of small footprint and low equipment investment.

Description

Technical Field

[0001] The invention relates to the technical field of bearing production equipment, in particular to a forging production line for inner and outer rings of bearings. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. Therefore, bearings are widely used in various mechanical equipment.

[0003] The outer ring and inner ring are the main components of the bearing. Taking the most common ball bearing as an example, it mainly includes the outer ring of the bearing, the inner ring of the bearing and the roller installed between the inner and outer rings. The production of the outer ring and the inner ring of the bearing requires a series of complex processing to complete. Forging is the first process. The purpose of this process is to forge the steel billet into the semi-finished blanks of the outer ring and the inner ring of the bearing. At present, when the bearing is produced, the outer ring and the inner ring of the bearing are forged separately, that is, two different production lines are required to forge the outer ring and the inner ring of the bearing respectively. Under this production mode, there is a lot of material waste (mainly waste from cutting the inner hole of the outer ring), the equipment cost investment is large (two lines, a large number of production equipment), and the workshop area required is also large. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a bearing inner and outer ring forging production line.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A bearing inner and outer ring forging production line comprises a upsetting device, a cutting device, a flattening device, a ring rolling device, a discharging device and a workpiece slideway, wherein the upsetting device, the cutting device, the flattening device, the ring rolling device and the discharging device are arranged in sequence along a straight line, and the devices are connected by the workpiece slideway, and a manipulator is installed near the upsetting device, the cutting device, the flattening device and the ring rolling device, and the ring rolling device comprises an outer ring ring rolling mechanism, an inner ring ring rolling mechanism and a synchronous ring rolling power mechanism, wherein the outer ring ring rolling mechanism is fixedly installed on the ground, and the inner ring ring rolling mechanism is movably installed on the ground, and when the inner ring ring rolling mechanism moves toward the outer ring ring rolling mechanism, the outer ring ring rolling mechanism and the inner ring ring rolling mechanism can be connected together through the synchronous ring rolling power mechanism to perform synchronous ring rolling operations on the bearing outer ring and the bearing inner ring.

[0007] The blanking device includes a blanking machine table, a first blanking machine, and a second blanking machine. The first blanking machine and the second blanking machine are installed side by side on the blanking machine table. The blank is sequentially transferred through the first blanking machine and the second blanking machine. A fine cutting knife is installed on the first blanking machine, and a rough cutting knife is installed on the second blanking machine. A first blanking die base and a second blanking die base are fixedly installed on the blanking machine table. The first blanking die base is correspondingly installed directly below the fine cutting knife, and the second blanking die base is correspondingly installed directly below the rough cutting knife. Blanking auxiliary components are connected to the sides of the first blanking die base and the second blanking die base.

[0008] Through holes are provided on both the first blanking die base and the second blanking die base. The blanking machine table has a hollow interior structure. The through holes extend through to the inside of the blanking machine table. A waste box is installed inside the blanking machine table, and the waste box is located directly below the through hole of the first blanking die base.

[0009] The blanking auxiliary component includes a screw base and a blanking pressure plate. The two screw bases are symmetrically connected to the outer side walls of the blanking die base. A screw is vertically connected to each screw base. A spring is sleeved on the outside of the screw. The blanking pressure plate is inserted through the two screws. The upper end of the spring is connected to the lower end face of the blanking pressure plate, and the lower end of the spring is connected to the screw base. A limit nut is threadedly installed at the top of the screw.

[0010] The outer ring ring rolling mechanism includes a ring rolling machine frame and an outer ring ring rolling head. A head lifting rail is installed on the ring rolling machine frame. The outer ring ring rolling head is movably installed on the head lifting rail. A lifting hydraulic cylinder is installed at the top of the ring rolling machine frame. The piston rod end of the lifting hydraulic cylinder is connected to the outer ring ring rolling head. An outer ring ring rolling roller is rotatably installed on the outer ring ring rolling head. The inner ring ring rolling mechanism also includes a ring rolling machine frame and a head lifting rail. The inner ring ring rolling mechanism further includes an inner ring ring rolling head. The inner ring ring rolling head is movably installed on the head lifting rail of the inner ring ring rolling mechanism. An inner ring ring rolling roller is rotatably installed on the inner ring ring rolling head. The ring rolling device further includes a head linkage component. The head linkage component includes four linkage rods. One ends of the four linkage rods are respectively connected to the four corners of the outer ring ring rolling head. The other ends of the four linkage rods all penetrate through and are installed on the inner ring ring rolling head. The synchronous lifting linkage of the outer ring ring rolling head and the inner ring ring rolling head can be realized through the four linkage rods.

[0011] The outer ring rolling mechanism also includes an outer ring discharge roller and a guide roller assembly. The outer ring discharge roller is rotatably mounted on the ring rolling frame of the outer ring rolling mechanism. The outer ring discharge roller is installed directly below the outer ring ring rolling machine head. Two guide roller assemblies are also installed on the ring rolling frame. The two guide roller assemblies and the outer ring discharge roller form a herringbone layout. The inner ring rolling mechanism also includes an inner ring discharge roller. The inner ring discharge roller is rotatably mounted on the ring rolling frame of the inner ring rolling mechanism. Two guide roller assemblies are also installed on the ring rolling frame of the inner ring rolling mechanism. The inner ring discharge roller and the two guide roller assemblies also form a herringbone layout.

[0012] The outer circumferential surface of the outer ring unwinding roller is provided with a circle of first groove pressing convex ring, and the outer circumferential surface of the inner ring rolling roller is provided with a circle of second groove pressing convex ring.

[0013] The synchronous ring rolling power mechanism includes a drive motor and a linkage shaft. The drive motor is installed on the outer ring rolling machine head. The drive motor is connected to the outer ring rolling roller in a transmission manner. The linkage shaft is fixedly connected to the inner ring rolling roller. A spline section is provided on the linkage shaft. A spline socket is connected to the side end face of the outer ring rolling roller facing the inner ring rolling roller, and the spline section can be inserted into the spline socket.

[0014] The ring rolling device also includes a translation mechanism, which includes a moving rail and a push cylinder frame. The inner ring rolling mechanism is translationally installed on the moving rail. A translation push cylinder is installed on the push cylinder frame. The piston rod end of the translation push cylinder is connected to the rear end face of the ring rolling frame of the inner ring rolling mechanism. The translation push cylinder can push the inner ring rolling mechanism close to or away from the outer ring rolling mechanism.

[0015] The discharging device includes a first discharging conveyor belt and a second discharging conveyor belt, the first discharging conveyor belt and the second discharging conveyor belt have the same structure and are symmetrically installed, the first discharging conveyor belt and the second discharging conveyor belt are both installed at an angle, and the bearing components are transmitted from low to high, a plurality of cooling fans are installed above the first discharging conveyor belt and the second discharging conveyor belt, baffles are connected to the belt surfaces of the first discharging conveyor belt and the second discharging conveyor belt, and a collecting box is placed below the high points of the first discharging conveyor belt and the second discharging conveyor belt.

[0016] The beneficial effects of the present invention are as follows: the production line of the present invention can simultaneously process the blanks of the inner and outer rings of the bearings, and a set of the outer rings and the inner rings of the bearings can be produced by one circulation of the raw material. The present invention has the advantage of a high degree of automation and does not require manual coordination during the normal production process. The production line of the present invention can greatly reduce material waste and has the advantages of small footprint and low equipment investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view layout diagram of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the upsetting cake device of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the blanking device of the present invention;

[0020] Figure 4 It is an installation structure diagram of the blanking auxiliary component of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the flattening device of the present invention;

[0022] Figure 6 It is a front view of the outer ring ring rolling mechanism of the present invention;

[0023] Figure 7 It is a front view of the inner ring ring rolling mechanism of the present invention;

[0024] Figure 8 It is a side view structural diagram of the ring rolling device of the present invention;

[0025] Figure 9 It is an installation schematic diagram of the position of the discharge conveyor belt of the present invention.

[0026] In the figure: upsetting cake device 1, upsetting cake machine platform 11, upsetting cake machine 12, upsetting cake pressing seat 121, cutting device 2, cutting machine platform 21, waste box 211, first cutting machine 22, fine cutting knife 221, second cutting machine 23, rough cutting knife 231, first cutting die base 24, through hole 241, second cutting die base 25, cutting auxiliary component 26, screw base 261, screw 262, spring 263, cutting pressing plate 264, limit nut 265, flattening device 3, flattening machine platform 31, flattening machine 32, flattening pressing seat 321, ring rolling device 4, outer ring rolling mechanism 41, ring rolling machine frame 411, machine head lifting rail 4111, outer ring rolling machine head 412, outer ring rolling roller 4121, material blocking flange 4122, lifting hydraulic cylinder 413, outer ring feeding roller 414, first groove pressing ring 4141, feeding blocking boss 4142, guiding roller assembly 415, inner ring rolling mechanism 42, inner ring rolling machine head 421, inner ring rolling roller 4211, second groove pressing ring 4212, inner ring feeding roller 422, synchronous ring rolling power mechanism 43, driving motor 431, linkage shaft 432, spline section 4321, spline socket 433, machine head linkage component 44, linkage rod 441, translation mechanism 45, moving rail 451, push cylinder frame 452, translation push cylinder 453, discharging device 5, first discharging conveyor belt 51, baffle 511, second discharging conveyor belt 52, cooling fan 53, aggregate box 54, workpiece slideway 6, first feeding slideway 61, second feeding slideway 62, first outer ring slideway 63, first inner ring slideway 64, second outer ring slideway 65, second inner ring slideway 66, outer ring discharging slideway 67, inner ring discharging slideway 68, manipulator 7. Specific embodiments

[0027] The following further describes the present invention in conjunction with the accompanying drawings and specific embodiments. The descriptions such as "left" and "right" in the present invention are all based on Figure 1 the reference direction:

[0028] As Figures 1 to 9As shown, a bearing inner and outer ring forging production line includes a cake upsetting device 1, a cutting device 2, a flattening device 3, a ring rolling device 4, a discharging device 5 and a workpiece slide 6. The cake upsetting device 1, the cutting device 2, the flattening device 3, the ring rolling device 4 and the discharging device 5 are arranged in sequence along a straight line, and the devices are connected by the workpiece slide 6. The steel billet raw material flows through the cake upsetting device 1, the cutting device 2, the flattening device 3 and the ring rolling device 4 in sequence, and finally the bearing outer ring and the bearing inner ring forgings are output from the discharging device 5. A manipulator 7 is installed near the cake upsetting device 1, the cutting device 2, the flattening device 3 and the ring rolling device 4. The manipulator 7 is used to replace manual grasping and delivery of workpieces to meet the automated feeding and discharging requirements of each device. The ring rolling device 4 includes an outer ring rolling mechanism 41, an inner ring rolling mechanism 42 and a synchronous ring rolling power mechanism 43. The outer ring rolling mechanism 41 is fixedly installed on the ground, and the inner ring rolling mechanism 42 is fixedly installed on the ground. The inner ring rolling mechanism 42 is movably installed on the ground. When the inner ring rolling mechanism 42 moves toward the outer ring rolling mechanism 41, the outer ring rolling mechanism 41 and the inner ring rolling mechanism 42 can be connected together through the synchronous ring rolling power mechanism 43 to perform synchronous ring rolling operations on the bearing outer ring and the bearing inner ring. In the present invention, the bearing outer ring forging is formed by ring rolling by the outer ring rolling mechanism 41, and the bearing inner ring forging is formed by ring rolling by the inner ring rolling mechanism 42. The outer ring rolling mechanism 41 and the inner ring rolling mechanism 42 adopt synchronous ring rolling, so that the ring rolling operation of a set of bearing components can be completed in one start, which can greatly improve the working efficiency and reduce equipment waste. The present invention has the advantages of high degree of automation (automatic processing, automatic delivery of workpieces) and low equipment investment (single production line design, the device has the function of simultaneously producing and processing the inner and outer rings of the bearing), and can meet the needs of completing the inner and outer rings of the bearing on one assembly line.

[0029] like Figure 2 As shown, the upsetting device 1 includes an upsetting machine platform 11 and an upsetting machine 12. The upsetting machine 12 is installed on the upsetting machine platform 11. The upsetting machine 12 is equipped with an upsetting press seat 121 which can be lifted up and down. The upsetting press seat 121 can play a role in roughly pressing the steel billet. The raw steel billet is grabbed by the manipulator 7 and placed on the upsetting machine platform 11. The upsetting press seat 121 then descends to press the steel billet to meet the preliminary bearing shape requirements.

[0030] like Figure 3As shown, the blank cutting device 2 includes a blank cutting machine table 21, a first blank cutting machine 22, and a second blank cutting machine 23. The first blank cutting machine 22 and the second blank cutting machine 23 are installed side by side on the blank cutting machine table 21. The blank sequentially passes through the first blank cutting machine 22 and the second blank cutting machine 23 to complete two blank cutting operations. A fine cutting knife 221 is installed on the first blank cutting machine 22, and a rough cutting knife 231 is installed on the second blank cutting machine 23. A first blank cutting die base 24 and a second blank cutting die base 25 are fixedly installed on the blank cutting machine table 21. The first blank cutting die base 24 is correspondingly installed directly below the fine cutting knife 221, and the second blank cutting die base 25 is correspondingly installed directly below the rough cutting knife 231. Cutting auxiliary components 26 are connected to the sides of the first blank cutting die base 24 and the second blank cutting die base 25. Both the first blank cutting die base 24 and the second blank cutting die base 25 are provided with workpiece grooves. The steel blank can be positioned and placed on the blank cutting die base to complete the blank cutting operation. The cutting auxiliary component 26 plays a role in pressing the steel blank during cutting to prevent it from jumping. The steel blank first passes through the first blank cutting machine 22. The fine cutting knife 221 on the first blank cutting machine 22 first cuts a small hole in the steel blank, and this hole can be used as the inner hole of the bearing inner ring. Then the steel blank is grabbed and placed at the position of the second blank cutting machine 23 by the manipulator 7. The rough cutting knife 231 of the second blank cutting machine 23 cuts the steel blank again to cut and form a bearing outer ring blank and a bearing inner ring blank. The two blanks are respectively output from two workpiece chutes 6.

[0031] As Figure 3 shown, through holes 241 are opened on both the first blank cutting die base 24 and the second blank cutting die base 25. The through holes 241 are for the cut-off materials to fall through the holes. The blank cutting machine table 21 is of a hollow inner structure. The through holes 241 penetrate and extend into the blank cutting machine table 21. A waste material box 211 is installed inside the blank cutting machine table 21. The waste material box 211 is located directly below the through hole 241 of the first blank cutting die base 24. The cut-off materials cut by the first blank cutting machine 22 are processing waste materials, which fall into the waste material box 211 through the through holes 241 for collection. The cut-off materials cut by the second blank cutting machine 23 are the bearing inner ring blanks, which fall into the corresponding workpiece chute 6 through the through holes 241. The workpiece chute 6 is exactly located directly below the through hole 241 of the second blank cutting die base 25.

[0032] As Figure 3 and Figure 4As shown in the figure, the blank cutting auxiliary component 26 includes a screw base 261 and a blank cutting pressure plate 264. The two screw bases 261 are symmetrically connected to the outer side wall of the blank cutting die base. A screw 262 is vertically connected to each screw base 261. A spring 263 is sleeved outside the screw 262. The blank cutting pressure plate 264 is installed on the two screws 262. The upper end of the spring 263 is connected to the lower end face of the blank cutting pressure plate 264, and the lower end of the spring 263 is connected to the screw base 261. A limit nut 265 is threadedly installed at the top of the screw 262, which can limit the upper limit position of the blank cutting pressure plate 264, so that the blank cutting pressure plate 264 will not escape from the two screws 262. A cutting knife hole is provided on the blank cutting pressure plate 264, which does not affect the cutting operation of the cutting knife. When the cutting knife descends, the blank cutting pressure plate 264 will be pressed down accordingly. At this time, the spring 263 is compressed, and the blank cutting pressure plate 264 can press on the steel billet to prevent the steel billet from jumping during the blank cutting operation. After the blank cutting is completed, the cutting knife ascends, and the blank cutting pressure plate 264 ascends under the action of the restoring force of the spring 263. Sometimes the steel billet will adhere to the cutting knife. The blank cutting pressure plate 264 does not affect the lifting of the cutting knife, but can block the steel billet from rising with the cutting knife. The blank cutting pressure plate 264 can also play the role of blocking and dropping the steel billet.

[0033] As Figure 5 shown in the figure, the flattening device 3 includes a flattening machine table 31 and a flattening machine 32. The flattening machine 32 is fixedly installed on the flattening machine table 31. A flattening pressure seat 321 that can move upward is installed on the flattening machine 32. The flattening pressure seat 321 can play the role of flattening the blank again. After passing through the blank cutting device 2, the steel billet raw material is cut into an outer ring blank and an inner ring blank, and they are respectively output. Through the manipulator 7, a set of outer ring blank and inner ring blank can be simultaneously grabbed and delivered to the flattening device 3 for flattening operation. After flattening, it is grabbed out by the manipulator 7 and conveyed separately (after the steel billet after the blank cutting operation, the cutting hole position will be concave or convex, so the blank has the need to be flattened again to form a flat blank ring, so as to facilitate the subsequent ring rolling operation).

[0034] As Figure 6 、 7As shown in FIGS. 7 and 8, the outer ring ring rolling mechanism 41 includes a ring rolling machine frame 411 and an outer ring ring rolling head 412. A head lifting rail 4111 is installed on the ring rolling machine frame 411. The outer ring ring rolling head 412 is movably installed on the head lifting rail 4111. A lifting hydraulic cylinder 413 is installed at the top of the ring rolling machine frame 411. The piston rod end of the lifting hydraulic cylinder 413 is connected to the outer ring ring rolling head 412. The telescopic movement of the piston rod of the lifting hydraulic cylinder 413 can drive the lifting movement of the outer ring ring rolling head 412. An outer ring ring rolling roller 4121 is rotatably installed on the outer ring ring rolling head 412. The outer ring ring rolling roller 4121 serves as a power roller during the ring rolling of the bearing outer ring. The inner ring ring rolling mechanism 42 also includes a ring rolling machine frame 411 and a head lifting rail 4111. The inner ring ring rolling mechanism 42 further includes an inner ring ring rolling head 421. The inner ring ring rolling head 421 is movably installed on the head lifting rail 4111 of the inner ring ring rolling mechanism 42. An inner ring ring rolling roller 4211 is rotatably installed on the inner ring ring rolling head 421. The inner ring ring rolling roller 4211 serves as a power roller during the ring rolling of the bearing inner ring. The ring rolling device 4 further includes a head linkage assembly 44. The head linkage assembly 44 includes four linkage rods 441. One ends of the four linkage rods 441 are respectively connected to the four corner positions of the outer ring ring rolling head 412. The other ends of the four linkage rods 441 all penetrate through the inner ring ring rolling head 421 and are installed. Through the four linkage rods 441, the synchronous lifting linkage of the outer ring ring rolling head 412 and the inner ring ring rolling head 421 can be realized. In the present invention, the ring rolling device 4 needs to complete the ring rolling processing operation of a set of bearing inner and outer ring blanks with one start. The design difficulty of the ring rolling device 4 lies in the linkage between the outer ring ring rolling mechanism 41 and the inner ring ring rolling mechanism 42. This linkage includes the linkage of the power of the two, and also includes the synchronous lifting linkage of the outer ring ring rolling roller 4121 and the inner ring ring rolling roller 4211. In the present invention, the linkage of the power is realized through the synchronous ring rolling power mechanism 43. The present invention also designs a head linkage assembly 44 to solve the problem of the synchronous linkage lifting of the outer ring ring rolling roller 4121 and the inner ring ring rolling roller 4211. The outer ring ring rolling head 412 and the inner ring ring rolling head 421 are connected in series through the four linkage rods 441. In this way, when the outer ring ring rolling head 412 lifts, the inner ring ring rolling head 421 can also lift synchronously, thus realizing the synchronous linkage lifting of the outer ring ring rolling roller 4121 and the inner ring ring rolling roller 4211.

[0035] As Figure 6 , 7As shown in FIGS. 7 and 8, the outer ring ring rolling mechanism 41 further includes an outer ring feeding roller 414 and a guiding roller assembly 415. The outer ring feeding roller 414 is rotatably installed on the ring rolling machine frame 411 of the outer ring ring rolling mechanism 41, and the outer ring feeding roller 414 is installed directly below the outer ring ring rolling head 412. The two guiding roller assemblies 415 are also installed on the ring rolling machine frame 411, and the two guiding roller assemblies 415 and the outer ring feeding roller 414 form a triangular layout. The inner ring ring rolling mechanism 42 further includes an inner ring feeding roller 422. The inner ring feeding roller 422 is rotatably installed on the ring rolling machine frame 411 of the inner ring ring rolling mechanism 42. Two guiding roller assemblies 415 are also installed on the ring rolling machine frame 411 of the inner ring ring rolling mechanism 42, and the inner ring feeding roller 422 and the two guiding roller assemblies 415 also form a triangular layout. Before the ring rolling operation, the outer ring blank and the inner ring blank are respectively grasped and loaded onto the outer ring feeding roller 414 and the inner ring feeding roller 422 by a manipulator. The outer ring feeding roller 414 and the inner ring feeding roller 422 are both provided with feeding blocking bosses 4142 for positioning the deepest insertion position of the blank. During the ring rolling operation, the outer ring ring rolling roller 4121 and the inner ring ring rolling roller 4211 synchronously descend while rotating to extrude the blank. The outer ring feeding roller 414 and the inner ring feeding roller 422 only act as driven wheels to enable the blank to rotate. Since the placement position of the blank is relatively fixed, the blank will be pressed and thinned during rotation, and the ring diameter will continuously increase while being thinned, thus forming a ring expanding effect. Through ring expanding, the inner and outer ring blanks with a certain ring diameter can be processed into bearing inner and outer ring forgings with a larger ring diameter. The outer ring ring rolling roller 4121 and the inner ring ring rolling roller 4211 are connected with a material blocking flange 4122. Under the dual limiting action of the material blocking flange 4122 and the feeding blocking boss 4142, the processing position of the blank is fixed. When the blank is processed by ring expanding, the height of the blank remains unchanged, and only the thickness of the ring gradually becomes thinner.

[0036] In a common ball bearing, the inner wall of the outer ring is provided with a ball groove, and the outer wall of the inner ring is provided with a ball groove. Therefore, as Figure 8 shown, a first groove pressing convex ring 4141 is provided on the outer circumferential surface of the outer ring feeding roller 414. Since the outer ring feeding roller 414 contacts the inner wall of the outer ring blank, when the outer ring blank is ring expanded, a ball groove can be formed on the inner wall of the outer ring blank. A second groove pressing convex ring 4212 is provided on the outer circumferential surface of the inner ring ring rolling roller 4211. Since the inner ring ring rolling roller 4211 contacts the outer wall of the inner ring blank, when the inner ring blank is ring expanded, a ball groove can be formed on the outer wall of the inner ring blank.

[0037] As Figure 8As shown, the synchronous ring rolling power mechanism 43 includes a driving motor 431 and a linkage shaft 432. The driving motor 431 is installed on the outer ring rolling machine head 412. The driving motor 431 is connected to the outer ring rolling roller 4121 through transmission. The linkage shaft 432 is fixedly connected to the inner ring rolling roller 4211. A spline section 4321 is provided on the linkage shaft 432. A spline socket 433 is connected to the side end face of the outer ring rolling roller 4121 facing the inner ring rolling roller 4211. The spline section 4321 can be inserted into the spline socket 433. The driving motor 431 can directly drive the outer ring rolling roller 4121. The outer ring rolling roller 4121 rotates. In the ring rolling device 4 of the present invention, it is necessary to complete the rolling of the inner ring and the outer ring of the bearing at the same time. Therefore, it is necessary to realize the synchronous rotation of the outer ring rolling roller 4121 and the inner ring rolling roller 4211. In the present invention, the spline section 4321 of the linkage shaft 432 of the inner ring rolling roller 4211 can be inserted into the spline socket 433 of the outer ring rolling roller 4121. In this way, the synchronous rotation of the outer ring rolling roller 4121 and the inner ring rolling roller 4211 can be realized through the spline connection, which can meet the synchronous rolling and expansion operation requirements of the inner ring and the outer ring of the bearing.

[0038] like Figure 8 As shown, the ring rolling device 4 also includes a translation mechanism 45, and the translation machine 45 includes a moving rail 451 and a push cylinder frame 452. The inner ring rolling mechanism 42 is translationally installed on the moving rail 451, and a translation push cylinder 453 is installed on the push cylinder frame 452. The piston rod end of the translation push cylinder 453 is connected to the rear end surface of the ring rolling frame 411 of the inner ring rolling mechanism 42. The translation push cylinder 453 is a hydraulic push cylinder. The translation push cylinder 453 can push the inner ring rolling mechanism 42 to approach or move away from the outer ring rolling mechanism 41. In the present invention, the ring rolling device 4 must not only meet the simultaneous processing of the inner and outer ring blanks of the bearing, but also facilitate the installation and disassembly of the inner and outer ring blanks of the bearing. Therefore, the present invention designs a movable inner ring rolling mechanism 42. When the inner ring When the ring rolling mechanism 42 is pushed away from the outer ring rolling mechanism 41, there will be a large disassembly and assembly space inside the ring rolling device 4, which can facilitate the manipulator 7 to extend into and perform installation or disassembly operations on the inner and outer rings of the bearing. When the inner ring ring rolling mechanism 42 is pushed close to the outer ring ring rolling mechanism 41, the inner ring ring rolling mechanism 42 and the outer ring ring rolling mechanism 41 can achieve power linkage and perform synchronous processing operations. In the process of the inner ring ring rolling mechanism 42 and the outer ring ring rolling mechanism 41 moving away from and approaching each other, the four linkage rods 441 are always inserted into the inner ring ring rolling head 421, that is to say, the inner ring ring rolling head 421 and the outer ring ring rolling head 412 are always connected, and their height positions are always kept consistent, ensuring that the power structure can be smoothly connected.

[0039] like Figure 1 and Figure 9As shown in the figure, the discharging device 5 includes a first discharging conveyor belt 51 and a second discharging conveyor belt 52. The first discharging conveyor belt 51 and the second discharging conveyor belt 52 have the same structure and are symmetrically installed. Both the first discharging conveyor belt 51 and the second discharging conveyor belt 52 are inclinedly installed, and the bearing parts are conveyed from low to high, entering from the low place and exiting from the high place. A number of cooling fans 53 are installed above both the first discharging conveyor belt 51 and the second discharging conveyor belt 52 to perform air-cooling during the conveying process of the bearing forgings. Baffles 511 are connected to the belt surfaces of both the first discharging conveyor belt 51 and the second discharging conveyor belt 52, and the baffles 511 are evenly distributed along the belt surface to prevent the bearing forgings from falling during conveying. Aggregate bins 54 are placed below the high points of both the first discharging conveyor belt 51 and the second discharging conveyor belt 52, and the aggregate bins 54 are used to collect the bearing forgings. In the present invention, the bearing outer ring forgings and the bearing inner ring forgings are classified and output through the first discharging conveyor belt 51 and the second discharging conveyor belt 52.

[0040] As Figure 1 shown in the figure, the workpiece slideway 6 includes a first feeding slideway 61, a second feeding slideway 62, a first outer ring slideway 63, a first inner ring slideway 64, a second outer ring slideway 65, a second inner ring slideway 66, an outer ring discharging slideway 67, and an inner ring discharging slideway 68. The first feeding slideway 61 is used for inputting the billet raw materials. The second feeding slideway 62 is connected to the upsetting device 1 and the cutting device 2. The second feeding slideway 62 is inclinedly installed, and the high point is located at the upsetting device 1. The roughly upset billet is grabbed by the manipulator 7 and placed on the second feeding slideway 62, and then automatically slides to the vicinity of the cutting device 2. The first outer ring slideway 63 and the first inner ring slideway 64 are connected to the cutting device 2 and the flattening device 3. The cutting device 2 can cut and form the outer ring blank and the inner ring blank. The high point of the first inner ring slideway 64 is located below the through hole 241 of the second cutting die base 25. After the inner ring blank is cut, it directly falls onto the first inner ring slideway 64 and slides down. After the cutting device 2, the classification conveying of the inner and outer rings is realized. Through the first outer ring slideway 63 and the first inner ring slideway 64, the blanks can slide to the vicinity of the flattening device 3. The second outer ring slideway 65 and the second inner ring slideway 66 are connected to the flattening device 3 and the ring rolling device 4, and their high points are connected to the flattening device 3, responsible for classifying and conveying the bearing outer ring blanks and the bearing inner ring blanks to the ring rolling device 4. The outer ring discharging slideway 67 and the inner ring discharging slideway 68 are connected to the ring rolling device 4 and the discharging device 5, and their high points are at the output end of the ring rolling device 4. The bearing inner and outer ring forgings after ring expansion are classified and conveyed to the discharging device 5 for output.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A forging production line for the inner and outer rings of a bearing, comprising a blank upsetting device (1), a material cutting device (2), a flattening device (3), a ring rolling device (4), a discharging device (5) and a workpiece slideway (6). Characterized in that: The upsetting device (1), the cutting device (2), the flattening device (3), the ring rolling device (4), and the discharging device (5) are arranged in sequence along a straight line, and the devices are connected by a workpiece slideway (6). A manipulator (7) is installed near the upsetting device (1), the cutting device (2), the flattening device (3), and the ring rolling device (4). The ring rolling device (4) includes an outer ring rolling mechanism (41), an inner ring rolling mechanism (42), and a synchronous ring rolling power mechanism (43). The outer ring rolling mechanism (41) is fixedly installed on the ground, and the inner ring rolling mechanism (42) is movably installed on the ground. When the inner ring rolling mechanism (42) moves toward the outer ring rolling mechanism (41), the outer ring rolling mechanism (41) and the inner ring rolling mechanism (43) are moved. (42) can be connected together through a synchronous ring rolling power mechanism (43) to perform synchronous ring rolling operations on the outer ring and the inner ring of the bearing. The outer ring rolling mechanism (41) includes a ring rolling frame (411) and an outer ring rolling head (412). The ring rolling frame (411) is equipped with a head lifting rail (4111). The outer ring rolling head (412) is movably installed on the head lifting rail (4111). A lifting hydraulic cylinder (413) is installed on the top of the ring rolling frame (411). The piston rod end of the lifting hydraulic cylinder (413) is connected to the outer ring rolling head (412). An outer ring rolling roller (4121) is rotatably installed on the outer ring rolling head (412). The inner ring rolling mechanism (42) also includes a ring rolling The inner ring rolling mechanism (42) further comprises an inner ring rolling machine head (421), the inner ring rolling machine head (421) is movably mounted on the machine head lifting rail (4111) of the inner ring rolling mechanism (42), an inner ring rolling roller (4211) is rotatably mounted on the inner ring rolling machine head (421), the ring rolling device (4) further comprises a machine head linkage assembly (44), the machine head linkage assembly (44) comprises four linkage rods (441), one ends of the four linkage rods (441) are respectively connected to the four corners of the outer ring rolling machine head (412), the other ends of the four linkage rods (441) are all installed through the inner ring rolling machine head (421), and the inner ring rolling machine head (421) is rotatably mounted on the inner ring rolling machine head (421). 441) can realize the synchronous lifting and lowering linkage of the outer ring rolling machine head (412) and the inner ring rolling machine head (421), and the synchronous ring rolling power mechanism (43) includes a driving motor (431) and a linkage shaft (432), wherein the driving motor (431) is installed on the outer ring rolling machine head (412), the driving motor (431) is transmission-connected with the outer ring rolling roller (4121), the linkage shaft (432) is fixedly connected to the inner ring rolling roller (4211), a spline section (4321) is provided on the linkage shaft (432), and a spline socket (433) is connected to the side end face of the outer ring rolling roller (4121) facing the inner ring rolling roller (4211), and the spline section (4321) can be inserted into the spline socket (433).

2. A forging production line for inner and outer rings of bearings as described in claim 1, characterized in that: The blanking device (2) includes a blanking machine table (21), a first blanking machine (22) and a second blanking machine (23). The first blanking machine (22) and the second blanking machine (23) are arranged side by side on the blanking machine table (21). The blank passes through the first blanking machine (22) and the second blanking machine (23) in sequence. A fine cutting knife (221) is installed on the first blanking machine (22), and a rough cutting knife (231) is installed on the second blanking machine (23). A first blanking die base (24) and a second blanking die base (25) are fixedly installed on the blanking machine table (21). The first blanking die base (24) is correspondingly installed directly below the fine cutting knife (221), and the second blanking die base (25) is correspondingly installed directly below the rough cutting knife (231). Blanking auxiliary components (26) are connected to the sides of the first blanking die base (24) and the second blanking die base (25).

3. A forging production line for inner and outer rings of bearings as described in claim 2, characterized in that: Through holes (241) are formed in both the first blanking die base (24) and the second blanking die base (25). The blanking machine table (21) has a hollow inner structure. The through holes (241) extend through to the inside of the blanking machine table (21). A waste box (211) is installed inside the blanking machine table (21), and the waste box (211) is located directly below the through hole (241) of the first blanking die base (24).

4. A forging production line for inner and outer rings of bearings as described in claim 2, characterized in that: The blanking auxiliary component (26) includes a screw base (261) and a blanking pressing plate (264). The two screw bases (261) are symmetrically connected to the outer side walls of the blanking die bases. A screw (262) is vertically connected to each screw base (261). A spring (263) is sleeved on the outside of the screw (262). The blanking pressing plate (264) is installed on the two screws (262). The upper end of the spring (263) is connected to the lower end surface of the blanking pressing plate (264), and the lower end of the spring (263) is connected to the screw base (261). A limit nut (265) is threadedly installed at the top of the screw (262).

5. A forging production line for inner and outer rings of bearings as described in claim 1, characterized in that: The outer ring ring rolling mechanism (41) further includes an outer ring feeding roller (414) and a guiding roller assembly (415). The outer ring feeding roller (414) is rotatably installed on the ring rolling machine frame (411) of the outer ring ring rolling mechanism (41), and the outer ring feeding roller (414) is installed directly below the outer ring ring rolling head (412). The two guiding roller assemblies (415) are also installed on the ring rolling machine frame (411), and the two guiding roller assemblies (415) and the outer ring feeding roller (414) form a triangular layout. The inner ring ring rolling mechanism (42) further includes an inner ring feeding roller (422). The inner ring feeding roller (422) is rotatably installed on the ring rolling machine frame (411) of the inner ring ring rolling mechanism (42), and two guiding roller assemblies (415) are also installed on the ring rolling machine frame (411) of the inner ring ring rolling mechanism (42). The inner ring feeding roller (422) and the two guiding roller assemblies (415) also form a triangular layout.

6. A forging production line for bearing inner and outer rings according to claim 5, characterized in that: A first grooved convex ring (4141) is provided on the outer circumference of the outer ring feeding roller (414), and a second grooved convex ring (4212) is provided on the outer circumference of the inner ring ring rolling roller (4211).

7. A forging production line for bearing inner and outer rings according to claim 1, characterized in that: The ring rolling device (4) further includes a translation mechanism (45). The translation mechanism (45) includes a moving rail (451) and a pushing cylinder frame (452). The inner ring ring rolling mechanism (42) is translationally installed on the moving rail (451). A translation pushing cylinder (453) is installed on the pushing cylinder frame (452). The piston rod end of the translation pushing cylinder (453) is connected to the rear end face of the ring rolling machine frame (411) of the inner ring ring rolling mechanism (42). The translation pushing cylinder (453) can push the inner ring ring rolling mechanism (42) closer to or farther away from the outer ring ring rolling mechanism (41).

8. A forging production line for bearing inner and outer rings according to claim 1, characterized in that: The discharging device (5) includes a first discharging conveyor belt (51) and a second discharging conveyor belt (52). The first discharging conveyor belt (51) and the second discharging conveyor belt (52) have the same structure and are symmetrically installed. The first discharging conveyor belt (51) and the second discharging conveyor belt (52) are both inclinedly installed, and the bearing parts are conveyed from low to high. A plurality of cooling fans (53) are installed above the first discharging conveyor belt (51) and the second discharging conveyor belt (52). Baffles (511) are connected to the belt surfaces of the first discharging conveyor belt (51) and the second discharging conveyor belt (52). Aggregate bins (54) are placed below the high points of the first discharging conveyor belt (51) and the second discharging conveyor belt (52).

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