Automatic forming device for bearing ring blank

Abstract

The present invention discloses an automatic forming device for a bearing ring blank, comprising a hot shearing mechanism for a bearing steel bar and a press for upsetting, core removal and bottom cutting. The hot shearing machine for the bearing steel bar is a hot shearing machine with adjustable length, which is connected to a qualified bar conveying and positioning device. The press automatically performs upsetting, core removal and bottom cutting on the qualified positioned bars. The hot shearing machine with adjustable length has a threaded adjustment limit block arranged on the side of the hot shearing machine cutter, and the adjustable length shearing of the bearing steel bar is achieved by adjusting the distance from the limit block end to the cutter. In the automatic forming device for the bearing ring blank, the removed core is clamped by a translational core flipping manipulator arranged between the press and the second press, and is moved and flipped to the upsetting preparation station of the second press, so as to prevent the core from flying out due to the uneven bottom when the second press is upsetting, and also avoid the need for an operator to clamp the core during the forging process, thereby solving the problem that the operator needs to clamp the core during forging production and cannot automatically forge and form.

Description

Technical Field

[0001] The invention patent relates to an automatic forming device for a bearing ring blank, belonging to the field of metal pressure processing. Background Art

[0002] The forging production of bearing rings is generally carried out in batches and in large quantities. The forging process directly affects the quality of the product, labor production efficiency and production cost. Sleeve forging and ring rolling is the most commonly used forging process for bearing rings. The heated material segment is upset, the core is cut out, and then the outer ring blank of the cut core is rolled to form a large ring forging. At the same time, the cut core is extruded and then rolled to form another small ring forging. This forging method on the press is called sleeve forging and rolling process. In this process method, the core of the sleeve is freely fallen to the bottom of the press table and then lifted up by the transfer belt, and then transferred to the next process, where it is clamped by the operator and sent to the reverse extrusion station for forming. The disadvantage is that the core transfer time is too long. When it arrives at the reverse extrusion station, the core temperature drops too much, which is not conducive to forging and forming. In addition, the mold life is reduced due to the lowering of the temperature of the blank. Forging automation is a major trend of development today, and the conveyor belt cannot achieve the precise positioning required by automation. The present invention aims to develop an automatic flip core taking device to solve the above problems. Summary of the invention

[0003] The technical problem to be solved by the present invention is that during forging production, an operator is required to clamp the material core, and automatic forging and forming is not possible. To solve the above problem, the present invention provides an automatic forming device for a bearing ring blank.

[0004] The object of the present invention is achieved in the following manner:

[0005] The automatic forming device of the bearing ring blank comprises a hot shearing mechanism for bearing steel bars and a press for upsetting, core removal and bottom cutting. The hot shearing machine for the bearing steel bars is a hot shearing machine with adjustable length. The hot shearing machine is connected to a qualified bar conveying and positioning device. The press automatically upsets, cores and bottoms the qualified positioned bars.

[0006] The adjustable-length hot shearing machine has a threaded adjustment limit block arranged on the side of the hot shearing machine cutter, and the adjustable-length shearing of the bearing steel bar is achieved by adjusting the distance from the limit block end to the cutter.

[0007] The qualified bar conveying and positioning device refers to a mobile material receiving trough set below the cutter, the mobile material receiving trough is connected to the tail material removal device, the tail material removal device is connected to the bar upright device, the bar upright device is connected to the upright bar positioning device, and the stroke end of the upright bar positioning device is the press upsetting preparation station.

[0008] The press automatically performs upsetting, core removal and bottom cutting on the qualified positioned bar stock, and an upsetting upper die, a core removal upper die and a bottom cutting upper die are sequentially arranged on the upper die seat of the press, and an upsetting lower die, a core removal lower die and a bottom cutting lower die are correspondingly arranged on the lower die seat of the press. On the sides corresponding to the upper and lower dies are four three-dimensional walking beam manipulators, which correspond to a bar stock clamping manipulator, an upsetting material manipulator, a core removal manipulator and a bottom cutting manipulator, respectively. The manipulators respectively clamp the workpiece and move the workpiece to the next station at the same time. The bar stock manipulator moves the bar stock prepared for the upsetting station to the upsetting station, the upsetting material manipulator clamps the upset material at the upsetting station and moves it to the core removal station, the core removal manipulator clamps the cored material at the core removal station and moves it to the bottom cutting station, and the bottom cutting manipulator clamps the bottom cut material at the bottom cutting station and moves it to the rolling station.

[0009] A second press is arranged on the side of the press, and a translational core flipping manipulator is arranged between the press and the second press. The translational core flipping manipulator receives and clamps the core removed by the press, and moves and flips it to the upsetting preparation station of the second press.

[0010] The method of receiving and clamping the core removed by the press and moving and flipping it to the upsetting preparation station of the second press means that a channel for receiving the core is set below the core removal lower die of the press, and a translational flipping clamping manipulator is set between the channel and the upsetting preparation station of the second press.

[0011] The translation, flip and flip clamping manipulator comprises a base, a servo motor is fixed on the base, an output shaft of the servo motor is fixed to one end of a telescopic arm, and the other end of the telescopic arm is a clamping manipulator.

[0012] The telescopic arm is an electric telescopic rod or a cylinder.

[0013] The translation, flip and flip clamping manipulator comprises a frame, a slide block is arranged on the frame, and a servo motor is fixed on the slide block.

[0014] The output shaft of the servo motor fixes one end of the flip arm, and the other end of the flip arm fixes the clamping manipulator.

[0015] Compared with the prior art, the present invention can shear bearing steel bars in a hot shearing mechanism for bearing steel bars, can achieve shearing of bearing steel bars with adjustable length by adjusting the distance from the end of the threaded stop block to the cutter, complete the shearing of bars required for different bearings, use the same press to perform upsetting, core removal, and bottom cutting processes, install a walking beam manipulator on the side of the press for upsetting, core removal, and bottom cutting, so that the upsetting, core removal, and bottom cutting processes can be carried out efficiently, the material core transfer time is not long, and when it reaches the reverse extrusion station, the material core temperature does not drop much , which is conducive to forging. In addition, the removed core is clamped by the translational flip core manipulator set between the press and the second press, and moved and flipped to the upsetting preparation station of the second press, so that the protruding bottom and the flat top of the removed core can be quickly flipped, so that the upsetting punch of the second press will contact the protruding bottom of the removed core when upsetting downward, preventing the core from flying out due to the uneven bottom during upsetting by the second press, and also avoiding the need for operators to clamp in the traditional forging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of a stereoscopic view of an automatic forming device for a bearing ring blank.

[0017] Figure 2 It is a front perspective view of the automatic forming device for the bearing ring blank.

[0018] Figure 3 It is an automatic forming device for bearing ring blanks Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is the front view of the automatic forming device for the bearing ring blank.

[0020] Figure 5 It is a three-dimensional diagram of the shearing mechanism of the automatic forming device for the bearing ring blank.

[0021] Figure 6 This is a bottom view of the shearing mechanism of the bearing ring blank automatic forming device.

[0022] Among them, 1 support frame, 2 shear press, 3 cutter, 4 lower die, 5 thread adjustment limit block, 6 mobile receiving trough, 7 receiving cylinder, 8 support seat, 9 feeder slide rail, 10 feeder slider, 11 waste handling cylinder, 12 V-groove, 13 connecting rod, 14 fixed block, 15 rotating motor, 16 discharging channel, 17 conveyor belt, 18 pushing cylinder, 19 pushing manipulator, 20 feeding limit tube, 21 L-type baffle, 22 micro servo motor, 23 press, 24 conveyor slide, 25 ternary stepping beam manipulator, 26 second press, 27 servo motor, 28 telescopic arm, 29 slider, 30 frame, 31 second ternary stepping beam manipulator, 32 second conveyor slide, 33 second support frame, 34 blanking support block, 35 clamping manipulator, 36 second blanking support block, 37 bottom plate, 38 second forging workbench, 39 support frame, 40 motor support frame, 41 threaded rod, 42 conveyor belt support frame, 43 forging workbench, 44 pushing servo motor, 45 signal transmitter, 46 arc-shaped receiving trough, 47 signal receiver, 48 sensor. DETAILED DESCRIPTION

[0023] As attached Figure 1-5 As shown, the automatic forming device for bearing ring blanks includes a hot shearing mechanism for bearing steel bars and a press 23 for upsetting, core removal and bottom cutting. The hot shearing machine for bearing steel bars is a hot shearing machine with adjustable length. The hot shearing machine is connected to a qualified bar conveying and positioning device. The press 23 automatically upsets, cores and bottoms the qualified positioned bars.

[0024] The adjustable length hot shearing machine comprises a support frame 1, a shearing press 2 is fixedly connected to the lower surface of the middle part of the support frame 1, a cutter 3 is fixedly connected to the output end of the shearing press 2, the connection method between the shearing press 2 and the cutter 3 is the same as the existing connection method in the forging process, a lower cutting die 4 is arranged below the cutter 3, the cutter 3 moves downward and the lower cutting die 4 forms a scissors die, a threaded adjustment limit block 5 is arranged on the side of the cutter 3, and the adjustable length shearing of the bearing steel bar is realized by adjusting the distance from the limit block end to the cutter 3.

[0025] The qualified bar conveying and positioning device refers to a movable material receiving trough 6 arranged below the cutter 3, one side of the movable material receiving trough 6 is connected to the material receiving cylinder 7 through a connecting rod, the bottom of the material receiving cylinder 7 is fixedly connected to the support seat 8, the support seat 8 is fixedly connected to a feeder slide rail 9 at one end away from the material receiving cylinder 7, the feeder slide rail 9 is movably connected to a feeder slider 10, the lower surface of the feeder slider 10 away from the feeder slide rail 9 is fixedly connected to a pushing servo motor 44, the top of the support seat 8 is fixedly connected to a V-groove 12, the V-groove 12 is coaxial with the pushing servo motor 44, the end of the V-groove 12 away from the pushing servo motor 44 is provided with a tail material outlet, the V-groove 12 is installed with a waste processing cylinder 11 opposite to the tail material outlet, the V-groove 12 is fixedly connected to a signal transmitter 45 on the side close to the waste processing cylinder 11, and the support seat 8 is connected The rod 13 is connected to the fixed block 14, and the connecting rod 13 is made of insulating rubber material. The fixed block 14 is provided with a discharge channel 16. The fixed block 14 is fixedly connected with an arc-shaped material receiving groove 46 on one side close to the support seat 8. The outer surface of the bottom of the arc-shaped material receiving groove 46 is fixedly connected with a signal receiver 47 near one end of the fixed block 14. The height difference between the arc-shaped material receiving groove 46 and the V-shaped groove 12 is less than the diameter of the machined bearing. A gap of 1-2 mm is maintained between the V-shaped groove 12 and the arc-shaped material receiving groove 46 to ensure that the two are disconnected when there is no material on the V-shaped groove 12. If the material section sent from the feeding area to the test position is a normal material section, the right end of the material section on the V-shaped groove 12 contacts with the left end of the material section on the arc-shaped material receiving groove 46. The signal receiver 47 receives the signal emitted by the signal transmitter 45 and regards it as a qualified material section. The feeder slider 10 returns to the next cycle.

[0026] On the contrary, if the feeding section cannot touch the previous material section, it will be treated as the tail of the material.

[0027] The waste material handling cylinder 11 opposite to the tail material outlet of the V-shaped groove 12 is triggered and started to push this section of the bar material out of the V-shaped groove 12.

[0028] When the bottom of the fixed block 14 is fixedly connected with a rotating motor 15, the output end of the rotating motor 15 is connected to one end of the conveyor belt 17, the other end of the conveyor belt 17 is connected to the conveyor belt support frame 42, the bottom of the conveyor belt support frame 42 is connected to the forging workbench 43, one end of the forging workbench 43 is connected to a push cylinder 18, the push cylinder 18 is connected to a push manipulator 19 through a piston rod, and a feed limit tube 20 is provided on the top of the push manipulator 19. The bottom of the forging workbench 43 is fixedly connected with a sensor 48, which is located directly below the feed limit tube 20. The feed limit tube 20 is provided with an L-shaped baffle 21 on the side away from the push cylinder 18. The outer surface of the feed limit tube 20 is fixedly connected with a motor support frame 40, and the top of the motor support frame 40 is fixedly connected with a micro servo motor 22. The output end of the micro servo motor 22 is fixedly connected with a threaded rod 41, and the threaded rod 41 is threadedly connected to one end of the L-shaped baffle 21. The feed limit tube 20 receives the workpiece output from the conveyor belt 17, and the feed limit tube 20 is connected to the workpiece through the slide The groove is movably connected with the L-shaped baffle 21. When a workpiece in the feed limit tube 20 falls onto the forging workbench 43, the feed limit tube 20 cooperates with the L-shaped baffle 21 to prevent the falling workpiece from tipping over. The sensor 48 can sense it, thereby triggering the micro servo motor 22 to start working. The micro servo motor 22 drives the threaded rod 41 to rotate, so that the L-shaped baffle 21 moves up to avoid hindering the movement of the pushing robot 19. Then the pushing robot 19 clamps the workpiece and moves the workpiece to the upsetting preparation station of the press 23 with the help of the pushing cylinder 18.

[0029] A press 23 is arranged above the forging workbench 43, and a support frame 39 is fixedly connected to one side of the press 23. A conveying slide rail 24 is fixedly connected to the side of the forging workbench 43 away from the support frame 39. A three-dimensional walking beam manipulator 25 is slidably connected to the conveying slide rail 24. Four three-dimensional walking beam manipulators 25 move simultaneously in the same direction and at equal distances on the conveying slide rail 24. The tail removing device is connected to the bar uprighting device, and the bar uprighting device is connected to the upright bar positioning device. The stroke end of the upright bar positioning device is the upsetting preparation station of the press 23.

[0030] The press 23 automatically performs upsetting, core removal and bottom cutting on the qualified positioned bar stock, and an upsetting upper die, a core removal upper die and a bottom cutting upper die are sequentially arranged on the upper die seat of the press, and an upsetting lower die, a core removal lower die and a bottom cutting lower die are correspondingly arranged on the lower die seat of the press. On the sides corresponding to the upper and lower dies are four three-dimensional walking beam manipulators 25, which correspond to a bar stock clamping manipulator, an upsetting material manipulator, a core removal manipulator and a bottom cutting manipulator, respectively. The manipulators respectively clamp the workpiece and move the workpiece to the next station at the same time. The bar stock manipulator moves the bar stock prepared for the upsetting station to the upsetting station, the upsetting material manipulator clamps the upset material at the upsetting station and moves it to the core removal station, the core removal manipulator clamps the cored material at the core removal station and moves it to the bottom cutting station, and the bottom cutting manipulator clamps the bottom cut material at the bottom cutting station and moves it to the rolling station.

[0031] A second press 26 is arranged on the side of the press 23, and a translational core flipping manipulator is arranged between the press 23 and the second press 26. The translational core flipping manipulator receives and clamps the core removed by the press 23, and moves and flips it to the upsetting preparation station of the second press 26. One side of the second press 26 is connected to the bottom plate 37 through the second support frame 33, and a second forging workbench 38 is fixedly connected above the bottom plate 37. A second blanking support block 36 is fixedly connected to the bottom of the second forging workbench 38. The second blanking support block 36 is concentric with the core removal process die, and a second conveying slide rail 32 is fixedly connected to the second forging workbench 38 away from the second support frame 33. A second ternary stepping beam manipulator 31 is movably connected to the second conveying slide rail 32.

[0032] The method of receiving and clamping the core material removed by the press 23 and moving and flipping it to the upsetting preparation station of the second press 26 means that a channel for receiving the core material is set below the core removal lower die of the press 23, and a translational flipping clamping manipulator is set between the channel and the upsetting preparation station of the second press 26. There are generally four driving modes of the manipulator: pneumatic drive, hydraulic drive, electrical drive and mechanical drive. The clamping manipulator adopts hydraulic drive, and the hydraulic transmission of the manipulator uses pressurized oil as the working medium for transmitting power.

[0033] The motor drives the oil pump to output pressurized oil, which converts the mechanical energy supplied by the motor into the pressure energy of the oil.

[0034] The pressurized oil enters the cylinder through pipes and some control and adjustment devices, pushing the piston rod to move, thereby causing the arm to perform movements such as extension and retraction, and lifting and lowering, converting the pressure energy of the oil into mechanical energy.

[0035] The amount of friction that the arm can overcome when moving, and the amount of grip that the clamping hand needs to maintain when clamping a workpiece, are both related to the pressure of the oil and the effective working area of ​​the piston.

[0036] The speed at which the arm performs various movements is determined by the volume of oil flowing into the sealed cylinder.

[0037] This type of hydraulic transmission that transmits power by means of the volume change of the moving pressure oil is called volumetric hydraulic transmission. The hydraulic transmission system of the manipulator belongs to volumetric hydraulic transmission.

[0038] The translation and flipping clamping manipulator comprises a base, on which a servo motor 27 is fixed, and an output shaft of the servo motor 27 is fixed to one end of a telescopic arm 28 , and the other end of the telescopic arm 28 is a clamping manipulator 35 .

[0039] The telescopic arm 28 is an electric telescopic rod or a cylinder.

[0040] The translational flipping and flipping clamping manipulator comprises a frame 30 on which a slider 29 is arranged, on which a servo motor 27 is fixed, and an output shaft of the servo motor 27 fixes one end of a flipping arm, and the other end of the flipping arm fixes a clamping manipulator 35.

[0041] The working process of the present invention is as follows: adjust the distance between the thread adjustment limit block 5 and the cutter 3 to be the same as the length of the part to be processed, start the shearing press, shear the bar material, and the sheared bar material is moved to the entrance of the V-groove 12 by the material receiving cylinder 7, and then pushed to the V-groove 12 by the pushing servo motor 44. If the material segment sent from the feeding area to the test position is a normal material segment, the right end of the material segment on the V-groove 12 contacts with the left end of the material segment on the arc-shaped receiving groove 46, and the signal receiver 47 receives the signal emitted by the signal transmitter 45, and regards it as a qualified material segment. The feeder slider 10 returns, and the qualified bar The material reaches the upsetting preparation station of the press 23 through the conveyor belt 17 and the pushing robot 19. After upsetting by the press 23, it is clamped by the upsetting material robot among the ternary walking beam robot 25 to the core removal station. The cored bar material is clamped by the core removal robot to the next station of the forging workbench 43 to complete the forging of large-sized bearings. The removed material core is flipped by the clamping robot 35, servo motor 27 and telescopic arm 28 to the upsetting preparation station of the second press 26, and then the second press 26 and the second ternary walking beam robot 31 cooperate to complete the forging of small-sized bearings.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. Automatic forming device for bearing ring blanks, including a hot shearing mechanism for bearing steel bars and a press for upsetting, core removal and bottom cutting. Features The bearing steel bar hot shearing machine is a hot shearing machine with adjustable length. The hot shearing machine is connected to a qualified bar conveying and positioning device, and the press automatically performs upsetting, core removal, and bottom cutting on the qualified positioned bar. The adjustable length hot shearing machine is provided with a threaded adjustment limit block on the side of the hot shearing machine cutter, and the adjustable length shearing of the bearing steel bar material is achieved by adjusting the distance from the limit block end to the cutter; The qualified bar material conveying and positioning device refers to a mobile material receiving trough arranged below the cutter, one side of the mobile material receiving trough is connected to the material receiving cylinder through a connecting rod, the bottom of the material receiving cylinder is fixedly connected to the support seat, the support seat is fixedly connected to a feeder slide rail at one end away from the material receiving cylinder, the feeder slide rail is movably connected to the feeder slider, the lower surface of the feeder slider at one end away from the feeder slide rail is fixedly connected to a push servo motor, and the top of the support seat is fixedly connected to a V The V-groove is coaxial with the push servo motor. A tail material outlet is arranged at one end of the V-groove away from the push servo motor. A waste material processing cylinder is installed opposite to the tail material outlet. A signal transmitter is fixedly connected to the side of the V-groove close to the waste material processing cylinder. The support seat is connected to the fixed block through a connecting rod. The connecting rod is made of insulating rubber material. A discharge channel is arranged on the fixed block. An arc-shaped receiving trough is fixedly connected to the side of the fixed block close to the support seat. A signal receiver is fixedly connected to the outer surface of the bottom of the arc-shaped receiving trough close to the fixed block. The height difference between the arc-shaped receiving trough and the V-groove is less than the diameter of the machined bearing. A gap of 1-2 mm is maintained between the V-groove and the arc-shaped receiving trough to ensure that the two are disconnected when there is no material on the V-groove. If the material section sent from the feeding area to the test position is a normal material section, the right end of the material section on the V-groove contacts with the left end of the material section on the arc-shaped receiving trough. The signal receiver receives the signal emitted by the signal transmitter and regards it as a qualified material section. The feeder slider returns to the next cycle. On the contrary, if the right end of the material segment on the V-shaped groove cannot touch the left end of the material segment on the arc-shaped receiving groove, it will be treated as the tail of the material; The waste handling cylinder opposite to the V-groove tail material outlet is triggered to start, pushing this section of bar material out of the V-groove; A rotating motor is fixedly connected to the bottom of the fixed block, the output end of the rotating motor is connected to one end of the conveyor belt, the other end of the conveyor belt is connected to the conveyor belt support frame, the bottom of the conveyor belt support frame is connected to the forging workbench, one end of the forging workbench is connected to a push cylinder, the push cylinder is connected to the push manipulator through a piston rod, and a feed limit tube is set on the top of the push manipulator. The bottom of the forging workbench is fixedly connected with a sensor, which is located just below the feed limit tube. An L-shaped baffle is arranged on the side of the feed limit tube away from the push cylinder. The outer surface of the feed limit tube is fixedly connected with a motor support frame, and the top of the motor support frame is fixedly connected with a micro servo motor. The output end of the micro servo motor is fixedly connected with a threaded rod, which is threadedly connected to one end of the L-shaped baffle. The feed limit tube receives the bar material output from the conveyor belt, and the feed limit tube is movably connected to the L-shaped baffle through a slide groove. When there is a bar material in the feed limit tube falling onto the forging workbench, the feed limit tube cooperates with the L-shaped baffle to prevent the falling bar material from tipping over, and the sensor can sense it, thereby triggering the micro servo motor to start working. The micro servo motor drives the threaded rod to rotate, so that the L-shaped baffle moves up to avoid hindering the movement of the pusher robot. Then the pusher robot clamps the bar material, and moves the bar material to the press upsetting preparation station with the help of the pusher cylinder. The press automatically performs upsetting, core removal and bottom cutting on the qualified positioned bar material, and the upper die seat of the press is provided with an upsetting upper die, a core removal upper die and a bottom cutting upper die in sequence, and the lower die seat of the press is provided with an upsetting lower die, a core removal lower die and a bottom cutting lower die in correspondence, and the sides corresponding to the upper and lower dies are four three-dimensional walking beam manipulators, which correspond to the bar material clamping manipulator, the upsetting material manipulator, the core removal material manipulator and the bottom cutting material manipulator in sequence; A second press is arranged on the side of the press, and a translational core flipping manipulator is arranged between the press and the second press. The translational core flipping manipulator receives and clamps the core removed by the press, and moves and flips it to the upsetting preparation station of the second press.

2. The automatic forming device for a bearing ring blank according to claim 1, It is characterized in that The method of receiving and clamping the core removed by the press and moving and flipping it to the upsetting preparation station of the second press means that a channel for receiving the core is set below the core removal lower die of the press, and a translational flipping clamping manipulator is set between the channel and the upsetting preparation station of the second press.

3. The automatic forming device for bearing ring blanks according to claim 2, It is characterized in that The translational flip clamping manipulator comprises a base, a servo motor is fixed on the base, an output shaft of the servo motor is fixed to one end of a telescopic arm, and the other end of the telescopic arm is a clamping manipulator.

4. The automatic forming device for a bearing ring blank according to claim 3, It is characterized in that The telescopic arm is an electric telescopic rod or a cylinder.

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