A cold extrusion synchronous control device for an asymmetric ferrule blank

Abstract

The present application relates to cold extrusion equipment technical field, specifically to a kind of cold extrusion synchronous control device of asymmetric ferrule blank, including rack, forming device, multiple forming devices are provided on the rack, multiple forming devices are arranged along vertical direction obliquely, and the forming device includes extrusion mechanism and mould.The present application is inclinedly arranged along vertical direction to multiple forming devices, and guide rail is arranged on rack, so that ferrule blank can be moved to next forming device by its own gravity, and by the setting of feeding disc, ferrule blank can be aligned with the die cavity of mould by the rotation of motor, and then ferrule blank is pushed into the die cavity of mould by extrusion mechanism, so as to reduce the setting of intermediate handling equipment, so as to reduce the cost of production line, and the synchronous control device has high synchronism, and will not affect the processing rhythm of multi-step extrusion, effectively improve the working efficiency of ferrule blank cold extrusion.

Description

Technical Field

[0001] This invention relates to the field of cold extrusion equipment technology, specifically to a synchronous control device for the cold extrusion of asymmetric ring blanks. Background Technology

[0002] Cold extrusion has advantages such as high material utilization and good mechanical properties in bearing ring processing. However, most cold extrusion equipment currently uses manual loading and unloading. Operators need to frequently and accurately place the blanks into the die cavity, and the blank positioning needs to be repeatedly adjusted. The loading and unloading time for a single piece is as long as 5-10 seconds, which seriously affects production efficiency and also poses certain safety hazards.

[0003] To address this issue, invention patent application CN201510003491.X provides an automated cold extrusion production line. This line uses a robotic arm to simultaneously load and unload materials from the cold extrusion equipment, thereby ensuring efficiency and improving safety. However, this invention uses a robotic arm for synchronized loading and unloading. Such robotic arms are costly, and when processing asymmetrical bearing rings with uneven wall thickness, multi-stage cold extrusion is necessary to avoid quality issues like insufficient filling or localized accumulation from a single extrusion. Furthermore, multi-stage cold extrusion requires multiple robotic arms working collaboratively to achieve synchronized loading and unloading of asymmetrical bearing rings, further increasing costs.

[0004] Therefore, in order to ensure the efficiency of cold extrusion processing of asymmetric bearing ring blanks and reduce input costs, a synchronous control device for cold extrusion of asymmetric bearing ring blanks is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a synchronous control device for cold extrusion of asymmetric bearing ring blanks. In order to reduce investment costs and ensure the efficiency of cold extrusion of asymmetric bearing ring blanks, this invention arranges multiple forming devices at an angle in the vertical direction. By using the gravity of the ring blanks and the swing of the feeding plate, the synchronous loading and unloading of multi-step cold extrusion processing of asymmetric bearing ring blanks can be achieved, which can reduce costs and ensure processing efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A synchronous control device for cold extrusion of asymmetric ring blanks includes a frame and forming devices. Multiple forming devices are mounted on the frame and arranged inclined vertically. Each forming device includes an extrusion mechanism and a die. An ejection mechanism is provided inside the die. A guide rail is mounted on the frame, and a baffle is mounted on the guide rail. A feeding shaft is rotatably mounted on the frame, and a feeding disc is mounted on the feeding shaft. The feeding disc has a slot for engaging with the ring blank. A motor is mounted on the frame, and the motor output shaft is connected to the feeding shaft. An opening and closing mechanism is provided on the guide rail, which controls the baffle to slide on the guide rail by the extrusion of the feeding disc.

[0008] By arranging multiple forming devices vertically and installing guide rails on the frame, the ring blanks can be moved to the next forming device by their own gravity. The feeding tray aligns the ring blanks with the mold cavity, and the extrusion mechanism pushes the ring blanks into the mold cavity. This ensures that when performing multi-step extrusion on asymmetrical ring blanks, the simultaneous loading and unloading of multiple forming devices can be achieved using only the power of a motor. This reduces the need for intermediate handling equipment, thereby lowering the production line cost. Furthermore, the synchronization control device has high synchronization and will not affect the processing rhythm of multi-step extrusion, effectively improving the efficiency of cold extrusion of ring blanks.

[0009] Preferably, the opening and closing mechanism includes a connecting rod, the number of baffles is 2, the baffles are provided with cylindrical sliding rods, the connecting rods are provided with sliding grooves at both ends, the two sliding rods are slidably connected to the sliding grooves, the two baffles are slidably connected to the guide rail, the distance between the two baffles is equal to the diameter of the ring blank, the connecting rod is rotatably connected to the frame through a torsion spring, and a push rod is connected to the connecting rod, the push rod abutting against the feeding disc.

[0010] The feed pan presses the push rod, causing the connecting rod to rotate. This causes one baffle to no longer block the ring blank, while the other baffle blocks subsequent rolling ring blanks. The two baffles prevent the ring blanks from falling one by one as the feed pan moves to the guide rail. Multiple ring blanks can be placed on the guide rail. Placing multiple ring blanks prevents two or more ring blanks from rolling off at the same time. The baffles also prevent the ring blanks from gaining too much inertia when falling from a height and detaching from the feed pan due to inertia, which would affect the cold extrusion of asymmetrical ring blanks.

[0011] Preferably, a swing rail is connected to the guide rail between adjacent molding devices. One end of the swing rail is rotatably connected to the frame via a torsion spring, and the other end extends to the mold and abuts against the feeding tray. The swing rail has an opening at one end of the mold.

[0012] By setting up the swing rail, when the swing rail is oscillating under the force of the torsion spring, the opening of the swing rail can swing to the mold cavity. This avoids the extruded ring blank from being easily scratched when it is ejected by the ejection mechanism due to the ring blank falling from a height. It also prevents the ring blank from jumping when falling from a height and failing to enter the guide rail, thus affecting the normal operation of the synchronous control device.

[0013] Preferably, two clamping rods are symmetrically and rotatably mounted on the feeding tray, and clamping blocks are provided on the clamping rods. A push rod is slidably mounted on the feeding tray. The push rod is Y-shaped, with one side of the push rod abutting against the two clamping rods and the other side of the push rod abutting against the swing rail. A flexible block is provided on the side of the clamping rod that contacts the push rod.

[0014] By setting up the clamping rod, the rotation of the feeding plate can squeeze the push rod, and the push rod can push the clamping rod to swing, so that the clamping block on the clamping rod can hold the ring blank. This maintains the stability of the ring blank on the feeding plate and avoids the ring blank from tilting due to the lack of a limit and the center of gravity shift when the extrusion mechanism pushes the ring blank. This would prevent the ring blank from entering the mold cavity and cause processing accidents. The side of the clamping rod that contacts the push rod is equipped with a flexible block, so that after the clamping block holds the ring blank, the push rod can continue to move for positioning.

[0015] Preferably, the push rod is provided with a positioning arc surface, the inner diameter of which is equal to the inner diameter of the ring blank, and the clamping block is provided with a circular arc surface, the inner diameter of which is equal to the inner diameter of the positioning arc surface.

[0016] When the jaw diameter equals the diameter of the ring blank, the ring blank is prone to tilting during rolling due to center of gravity issues, making it susceptible to jamming when entering the jaw. This prevents the feeder from synchronously loading and unloading the ring blank. Conversely, when the jaw diameter equals the ring blank diameter, the rotation of the feeder interferes with the ring blank's rotation after the extrusion mechanism pushes it into the die cavity, preventing it from rotating. Therefore, it is necessary to ensure that the jaw diameter is larger than the ring blank diameter to facilitate easier loading and unloading. The guide bar features a positioning arc surface on the push rod. This arc surface positions the ring blank, preventing the ring blank from failing to enter the mold cavity and causing machining accidents. The arc surface on the clamping block ensures that when the two clamping blocks clamp the ring blank, the thrust generated by the clamping blocks is directed towards the center of the positioning arc surface. This prevents the ring blank from rolling on the positioning arc surface due to uneven force, which could cause the ring blank to fail to align with the mold cavity and thus prevent the ring blank from entering the mold cavity and causing machining accidents.

[0017] Preferably, the feeding shaft includes a rotating part and a telescopic part. The rotating part is rotatably connected to the frame, and the telescopic part is slidably connected to the rotating part and elastically connected to the rotating part. The feeding disc is disposed on the telescopic part. The sliding part of the push rod and the feeding disc has a sliding gap. The feeding disc is provided with a rubber pad at the sliding gap. The push rod is provided with a positioning rod. The mold is provided with a sliding groove. The end of the positioning rod is frustum-shaped. The sliding groove is provided with two inclined surfaces. The two inclined surfaces cooperate with the two adjacent sides of the end of the positioning rod. The extrusion mechanism is rotatably connected to an extrusion plate through a torsion spring. The extrusion plate abuts against the feeding disc.

[0018] By dividing the feeding shaft into a rotating part and a telescopic part, and by setting an extrusion plate on the extrusion mechanism, the telescopic part can be pushed to retract, so that the positioning rod on the push rod is in contact with multiple inclined surfaces of the sliding groove. The sliding part between the push rod and the feeding plate has a sliding gap, which can adjust the position of the push rod and thus position the push rod, thereby improving the coaxiality between the positioning arc surface and the mold cavity, and improving the coaxiality between the ring blank and the mold cavity. This avoids the problem of the ring blank failing to enter the mold cavity and causing processing accidents. The end of the positioning rod is frustum-shaped, which can limit the horizontal or vertical swing of the push rod caused by the sliding gap, thereby improving the coaxiality between the ring blank and the mold cavity. The setting of the sliding groove can prevent the mold from interfering with the movement of the positioning rod.

[0019] Preferably, the clamping block is hinged to the clamping rod, and the hinged part has a hinge gap.

[0020] The clamping block and clamping rod are hinged, and there is a hinge gap at the hinge point. When the clamping block contacts the ring blank, the angle and position of the clamping block can be adjusted so that the arc surface is completely in contact with the ring blank. This prevents the clamping force of the clamping block on the ring blank from shifting and pushing the ring blank to move on the positioning arc surface, thereby affecting the coaxiality of the ring blank and the mold cavity.

[0021] Preferably, both sides of the guide rail are provided with blocking plates, and the width of the two blocking plates is equal to the width of the ring blank. When the feeding tray moves to the guide rail, the two blocking plates block the opening.

[0022] By setting up the baffle plate, the ring blank can be prevented from jumping and falling when it falls to the bayonet, thereby improving the stability of the synchronous control device.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. This invention arranges multiple forming devices at an angle in the vertical direction and sets guide rails on the frame, so that the ring blank can be moved to the next forming device by its own gravity. By setting the feeding plate, the ring blank can be aligned with the mold cavity by the rotation of the motor. Then, the extrusion mechanism pushes the ring blank into the mold cavity, thereby reducing the setting of intermediate handling equipment and reducing the cost of the production line. Moreover, the synchronous control device has high synchronization and will not affect the processing rhythm of multi-step extrusion, effectively improving the working efficiency of cold extrusion of ring blanks.

[0025] 2. By flexibly connecting the swing rail to the frame, the opening of the swing rail can swing to the mold cavity. This avoids the extruded ring blank from being easily scratched when it falls from a height during ejection by the ejection mechanism. It also prevents the ring blank from jumping when falling from a height and failing to enter the guide rail, thus affecting the normal operation of the synchronous control device. When the feeding plate presses the swing rail, the swing rail can be far away from the mold and will not interfere with the pressurization operation.

[0026] 3. By setting a push rod on the feeding tray, and the push rod is equipped with a positioning arc surface, when the feeding tray squeezes the swing rail, the push rod can be squeezed by the reaction force of the swing rail, so that the push rod positions the ring blank, thereby improving the positioning accuracy of the synchronous control device and avoiding the problem of the ring blank failing to enter the mold cavity and causing processing accidents. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of one of the molding devices of the present invention;

[0029] Figure 3 for Figure 2 Cross-sectional view of the feed tray rotating from point AA to the mold;

[0030] Figure 4 for Figure 3 Enlarged view of a section at point B in the middle;

[0031] Figure 5 for Figure 3 Enlarged view of a section at point C;

[0032] Figure 6 for Figure 3 Sectional view at point DD;

[0033] Figure 7 This is a partial structural diagram of the feeding disc when it rotates away from the mold.

[0034] Figure 8 for Figure 7 Enlarged view of a section at point E in the middle.

[0035] In the diagram: 1. Frame; 2. Forming device; 3. Extrusion mechanism; 31. Punch; 32. Hydraulic cylinder; 4. Mold; 41. Mold cavity; 5. Guide rail; 6. Baffle; 61. Slide rod; 62. Baffle one; 63. Baffle two; 7. Feeding shaft; 71. Rotating part; 72. Telescopic part; 8. Feeding tray; 81. Bayonet; 9. Opening and closing mechanism; 91. Connecting rod; 92. Slide groove; 93. Push rod; 10. Swing rail; 11. Opening; 12. Clamping rod; 13. Clamping block; 131. Arc surface; 14. Push rod; 141. Positioning arc surface; 15. Motor; 16. Sliding gap; 17. Positioning rod; 18. Sliding groove; 19. Inclined surface; 20. Extrusion plate; 21. Hinge gap; 22. Blocking plate; 23. Ejection mechanism; 24. Ring blank; 25. Flexible block; 26. Rubber pad. Detailed Implementation

[0036] Please see Figures 1 to 8 This invention provides a synchronous control device for cold extrusion of asymmetric ring blanks, the technical solution of which is as follows:

[0037] A synchronous control device for cold extrusion of asymmetric ring blanks includes a frame 1, on which multiple forming devices 2 are mounted. These forming devices 2 are arranged inclined vertically. Each forming device 2 includes an extrusion mechanism 3 and a die 4. The extrusion mechanism 3 includes a hydraulic cylinder 32 mounted on the frame 1 and a punch 31 mounted on the hydraulic cylinder 32. The die 4 is mounted on the frame 1 and has a cavity 41. An ejection mechanism 23 is located inside the die 4. A guide rail 5 is mounted on the frame 1, and a baffle 6 is slidably mounted on the guide rail 5. A feeding shaft 7 is rotatably mounted on the frame 1 and bolted to a motor 15. The feeding shaft 7 is connected to the motor 15 via a coupling. A feeding disc 8 is mounted on the feeding shaft 7 and has a locking slot 81. The frame 1 has an opening and closing mechanism. Mechanism 9: The ring blank 24 is placed on the guide rail 5, and the ring blank 24 can roll along the guide rail 5 to the feeding plate 8. At this time, the feeding plate 8 squeezes the opening and closing mechanism 9, causing the opening and closing mechanism 9 to drive the baffle 6 to slide on the guide rail 5, so that the baffle 6 no longer obstructs the ring blank 24, and then the ring blank 24 rolls to the jaw 81. Then the motor 15 rotates, driving the feeding plate 8 to rotate. At this time, the feeding plate 8 can drive the ring blank 24 to move to the mold 4. Then the hydraulic cylinder 32 is started, driving the punch 31 to move towards the mold 4 and squeeze the ring blank 24 into the mold cavity 41. After the ring blank 24 has partially entered the mold cavity 41, the motor 15 continues to rotate, driving the feeding plate 8 away from the mold 4. At this time, the hydraulic cylinder 32 continues to work to push the ring blank. The blank 24 enters the mold cavity 41 and is cold-extruded. After extrusion, the hydraulic cylinder 32 retracts, the motor 15 reverses, and the feeding disc 8 moves to contact the guide rail 5. Then, the ejection mechanism 23 ejects the cold-extruded blank 24, causing it to fall onto the guide rail 5 below the mold 4. At this point, the blank 24, after initial extrusion, can move along the guide rail 5 to the next feeding disc 8 by gravity. By controlling the rotation of the feeding disc 8 at the next forming device 2, the blank 24 can enter the next forming mold 4. This synchronous control device can realize the synchronous loading and unloading of multiple forming devices 2, thereby reducing the setting of intermediate handling equipment and reducing the cost of the production line. The device has high synchronization and will not affect the processing rhythm of multi-step extrusion, effectively improving the working efficiency of cold extrusion of the ring blank 24; the opening and closing mechanism 9 includes a connecting rod 91 rotatably mounted on the frame 1, with grooves 92 at both ends of the connecting rod 91, and two baffles 6, both of which are slidably connected to the guide rail 5. The baffles 6 are provided with slide rods 61, which are cylindrical. The two slide rods 61 are slidably mounted inside the grooves 92 respectively. A torsion spring is connected between the connecting rod 91 and the frame 1. A push rod 93 is provided on the connecting rod 91. The baffles 6 are divided into baffle one 62 and baffle two 63. The one below the inclined direction of the guide rail 5 is baffle one 62, and the one above the inclined direction of the guide rail 5 is baffle two 63. The distance between baffle one 62 and baffle two 63 is equal to the diameter of the ring blank 24;When the feeding disc 8 moves away from the guide rail 5, it does not press the push rod 93. Under the action of the torsion spring, the connecting rod 91 pushes the first baffle 62 upward and pulls the second baffle 63 downward. When the feeding disc 8 moves to one side of the guide rail 5, it presses the push rod 93, thereby pushing the connecting rod 91 to rotate, causing the first baffle 62 to move downward and the second baffle 63 to move upward. During the movement of the first baffle 62 and the second baffle 63, both the first baffle 62 and the second baffle 63 block the guide rail 5, preventing the ring blank 24 inside the guide rail 5 from rolling. When the first baffle 62 no longer blocks the guide rail 5, the second baffle 63 can no longer block the ring blank 24 between the first baffle 62 and the second baffle 63, allowing the ring blank 24 to roll onto the feeding disc 8. The ring blank 24 after the second baffle 63 cannot roll. When the feeding disc 8 moves away from the guide rail 5 again, the first baffle 62 blocks the guide rail 5. After the guide rail 5 is blocked by the baffle 63, the guide rail 5 is blocked by the baffle 62, and the ring blank 24 cannot roll off the guide rail 5. Therefore, this setting allows multiple ring blanks 24 to be processed to be placed on the guide rail 5. When multiple ring blanks 24 are placed, two or more ring blanks 24 can be prevented from rolling off at the same time, thus avoiding processing accidents. Moreover, placing multiple ring blanks 24 at the same time can reduce waiting time and effectively improve work efficiency compared to placing a single ring blank 24. Both sides of the guide rail 5 are provided with baffles 22. The width of the two baffles 22 is equal to the width of the ring blank 24. When the feeding plate 8 moves to the guide rail 5, the two baffles 22 block the bayonet 81. By setting the baffles 22, when the ring blank 24 falls to the bayonet 81, it can be prevented from jumping and falling off, thereby improving the stability of the synchronous control device operation.

[0038] A swing rail 10 is connected to the guide rail 5 between two adjacent forming devices 2. One end of the swing rail 10 is rotatably connected to the frame 1 via a torsion spring, and the other end extends to the mold 4. An opening 11 is provided at one end of the swing rail 10, located in the mold cavity 41. When the ejector mechanism 23 ejects the extruded ring blank 24, the ring blank 24 can enter the swing rail 10 through the opening 11. At this time, the ring blank 24 can roll along the swing rail 10 into the guide rail 5, and then move along the guide rail 5 to the next feeding plate 8. This avoids the extruded ring blank 24 from being easily scratched due to falling from a height when ejected by the ejector mechanism 23, and also avoids the ring blank 24 from jumping due to falling from a height and failing to enter the guide rail 5. This affects the normal operation of the synchronous control device. When the feeding disc 8 rotates, it can squeeze the swing rail 10 to rotate, so that the swing rail 10 is away from the mold 4 and will not interfere with the cold extrusion of the ring blank 24. Two clamping rods 12 are rotatably mounted on the feeding disc 8, and clamping blocks 13 are provided on the two clamping rods 12. A push rod 14 is slidably mounted on the feeding disc 8. The push rod 14 is Y-shaped. One end of the push rod 14 abuts against the two clamping rods 12, and the other end extends to the bottom of the feeding disc 8. A flexible block 25 is provided on the side of the clamping rod 12 that contacts the push rod 14. The flexible block 25 is made of rubber. During the swinging process of the feeding disc 8, the push rod 14 under the feeding disc 8 will abut against the swing rail 10. Thus, the push rod 14 is subjected to the reaction force of the swing rail 10 on the feeding disc 8. The push rod 14 slides upwards, pressing the clamping rod 12 through the push rod 14, causing the clamping block 13 to press the ring blank 24, thus ensuring that the ring blank 24 does not wobble on the feeding plate 8. This prevents the ring blank 24 from wobbling and tilting due to the center of gravity of the ring blank 24, which would prevent the ring blank 24 from entering the mold cavity 41 when pressed by the punch 31. The flexible block 25 allows the push rod 14 to continue moving for positioning after the clamping block 13 clamps the ring blank 24. The push rod 14 has a positioning arc surface 141, the inner diameter of which is equal to the inner diameter of the ring blank 24. The clamping block 13 has a circular arc surface 131, the inner diameter of which is equal to the inner diameter of the positioning arc surface 141. The push rod 14 has a positioning arc surface 141. The movement of the push rod 14 can align the ring blank 24 with the mold cavity 41, thus increasing the diameter of the bayonet 81. This prevents the ring blank 24 from getting stuck and unable to enter the bayonet 81. The positioning arc surface 141 can also position the ring blank 24, preventing the ring blank 24 from failing to enter the mold cavity 41 and causing processing accidents. The arc surface 131 on the clamping block 13 can make the pushing force generated by the clamping block 13 on the ring blank 24 when the two clamping blocks 13 clamp the ring blank 24 directed towards the center of the positioning arc surface 141. This prevents the ring blank 24 from rolling on the positioning arc surface 141 due to uneven force, which would cause the ring blank 24 to fail to align with the mold cavity 41 and thus prevent the ring blank 24 from failing to enter the mold cavity 41 and causing processing accidents.The feeding shaft 7 includes a rotating part 71 and a telescopic part 72. The rotating part 71 is rotatably connected to the frame 1, and the telescopic part 72 is slidably connected to the rotating part 71. The telescopic part 72 is elastically connected to the rotating part 71 via a spring. The feeding disc 8 is disposed on the telescopic part 72. The sliding part of the push rod 14 and the feeding disc 8 has a sliding gap 16. The feeding disc 8 is provided with a rubber pad 26 at the sliding gap 16. The push rod 14 is provided with a positioning rod 17. The mold 4 is provided with a sliding groove 18. The end of the positioning rod 17 is frustoconical. The sliding groove 18 is provided with two side surfaces adjacent to the end of the positioning rod 17. The inclined surface 19 is fitted with an extrusion plate 20 rotatably connected to the extrusion mechanism 3 via a torsion spring. When the hydraulic cylinder 32 moves, the extrusion plate 20 pre-abuts against the feeding disc 8, thereby extruding the feeding disc 8 and pushing the telescopic part 72 to move. This causes the end of the positioning rod 17 to abut against the two sides of the sliding groove 18, thereby adjusting the position of the push rod 14, improving the coaxiality between the positioning arc surface 141 and the mold cavity 41 of the mold 4, and improving the coaxiality between the ring blank 24 and the mold cavity 41. This avoids the problem of the ring blank 24 failing to enter the mold cavity 41 and causing processing accidents. The end of the positioning rod 17 is frustum-shaped, which can... The horizontal rotational freedom of the push rod 14 is restricted by two inclined planes 19, and the vertical swing freedom of the positioning rod 17 is restricted by the contact between the positioning rod 17 and the bottom surface of the sliding groove 18. This restricts the horizontal or vertical swing of the push rod 14 caused by the sliding gap 16, thereby improving the coaxiality of the ring blank 24 and the mold cavity 41. The sliding groove 18 allows the positioning rod 17 to move along with the feeding plate 8 even after the positioning rod 17 is engaged with the inclined plane 19. The rubber pad 26 keeps the push rod 14 in the middle of the sliding gap 16, thus avoiding... The push rod 14 is attached to the feeding tray 8 without adjustment space; the clamping block 13 is hinged to the clamping rod 12, and there is a hinge gap 21 at the hinge point; the hinged connection between the clamping block 13 and the clamping rod 12, and the hinge gap 21 at the hinge point, allows the angle and position of the clamping block 13 to be adjusted when it contacts the ring blank 24, so that the arc surface 131 is completely in contact with the ring blank 24. This prevents the clamping force of the clamping block 13 on the ring blank 24 from shifting and pushing the ring blank 24 to move on the positioning arc surface 141, thereby affecting the coaxiality of the ring blank 24 and the mold cavity 41.

[0039] Working principle: Please refer to Figures 1 to 8During processing, the ring blank 24 is placed inside the guide rail 5 in the first step. After placement, the motor 15 starts, driving the feeding disc 8 to move towards the guide rail 5. When the feeding disc 8 moves to one side of the guide rail 5, it presses against the push rod 93, thereby pushing the connecting rod 91 to rotate, causing the first baffle 62 to move downward and the second baffle 63 to move upward. During the movement of the first baffle 62 and the second baffle 63, both the first baffle 62 and the second baffle 63 block the guide rail 5, preventing the ring blank 24 inside the guide rail 5 from rolling. When the first baffle 62 no longer blocks the guide rail 5, the second baffle 63 can no longer block the ring blank 24 between the first baffle 62 and the second baffle 63, allowing the ring blank 24 to roll down to the latch 81. Then the motor 15 reverses... The feeder plate 8 rotates and feeds the ring blank 24 to the mold 4. During the movement of the feeder plate 8, the connecting rod 91 resets under the action of the torsion spring, pushing the first baffle 62 to block the guide rail 5, while pulling the second baffle 63 to no longer block the guide rail 5, allowing the ring blank 24 to roll between the first baffle 62 and the second baffle 63. When the feeder plate 8 rotates to the mold 4, the push rod 14 presses the swing rail 10. The reaction force of the swing rail 10 pushes the push rod 14 to move, causing the positioning arc surface 141 to protrude from the inner ring of the bayonet 81, allowing the ring blank 24 to enter the positioning arc surface 141 under the action of gravity. During the movement of the push rod 14, the push rod 14 presses the clamping rod 12, causing the clamping rod 12 to swing, thereby clamping the ring blank 24 with the clamping block 13. 4. This stabilizes the ring blank 24 on the positioning arc surface 141. Then, the hydraulic cylinder 32 extends. During the movement of the hydraulic cylinder 32, the extrusion plate 20 first contacts the feeding disc 8, thereby extruding the feeding disc 8 and compressing the telescopic part 72. This causes the positioning rod 17 to enter the sliding groove 18. After the positioning rod 17 enters the sliding groove 18, the two sides of the end of the positioning rod 17 cooperate with the two inclined surfaces 19, causing the push rod 14 to move along the sliding gap 16. The position of the push rod 14 is adjusted so that the ring blank 24 is completely aligned with the mold cavity 41. Then, the hydraulic cylinder 32 continues to extend, extruding the ring blank 24 through the punch 31, causing part of the ring blank 24 to enter the mold cavity 41. Then, the extension stops. Then, the motor 15 continues to rotate, driving the feeding disc 8 away from the mold cavity 41. The mold 4 is pressed away from the swing rail 10. After the feeding plate 8 moves away from the mold 4, the hydraulic cylinder 32 continues to extend and push the ring blank 24 completely into the mold cavity 41, and squeezes the ring blank 24. After the squeezing is completed, the hydraulic cylinder 32 retracts, and then the motor 15 controls the feeding plate 8 to rotate to the guide rail 5 again. The swing rail 10 swings to the mold cavity 41 under the action of the torsion spring. At this time, the ejection mechanism 23 starts to eject the squeezed ring blank 24. The ring blank 24 can enter the guide rail 5 along the swing rail 10 by gravity, and enter the next feeding plate 8 along the guide rail 5 or move to the cold pressing equipment. When the ring blank 24 moves to the next feeding plate 8, the ring blank 24 can be squeezed according to the above steps.

[0040] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. A synchronous control device for cold extrusion of asymmetric ring blanks, characterized in that, The machine includes a frame (1) and a forming device (2). The frame (1) is provided with multiple forming devices (2), which are arranged at an angle in the vertical direction. Each forming device (2) includes an extrusion mechanism (3) and a mold (4). The mold (4) is provided with an ejection mechanism (23). The frame (1) is provided with a guide rail (5), and the guide rail (5) is provided with a baffle (6). A feeding shaft (7) is rotatably mounted on the frame (1). The feeding shaft (7) is provided with a feeding disc (8), and the feeding disc (8) is provided with a bayonet (81) that cooperates with the ring blank (24). The frame (1) is provided with a motor (15), and the output shaft of the motor (15) is connected to the feeding shaft (7). The guide rail (5) is provided with an opening and closing mechanism (9), which controls the baffle (6) to slide on the guide rail (5) by the extrusion of the feeding disc (8). A swing rail (10) is connected to the guide rail (5) between adjacent molding devices (2). One end of the swing rail (10) is rotatably connected to the frame (1) through a torsion spring, and the other end extends to the mold (4) and abuts against the feeding tray (8). The swing rail (10) has an opening (11) at one end of the mold (4).

2. The cold extrusion synchronous control device for asymmetric ring blanks according to claim 1, characterized in that, The opening and closing mechanism (9) includes a connecting rod (91), and there are two baffles (6). The baffles (6) are provided with cylindrical sliding rods (61). The connecting rods (91) are provided with sliding grooves (92) at both ends. The two sliding rods (61) are slidably connected to the sliding grooves (92). The two baffles (6) are slidably connected to the guide rail (5). The distance between the two baffles (6) is equal to the diameter of the ring blank (24). The connecting rods (91) are rotatably connected to the frame (1) through a torsion spring. A push rod (93) is connected to the connecting rods (91). The push rod (93) abuts against the feeding plate (8).

3. The cold extrusion synchronous control device for asymmetric ring blanks according to claim 1, characterized in that, Two clamping rods (12) are symmetrically and rotatably mounted on the feeding tray (8). The clamping rods (12) are provided with clamping blocks (13). A push rod (14) is slidably mounted on the feeding tray (8). The push rod (14) is Y-shaped. One side of the push rod (14) abuts against the two clamping rods (12), and the other side of the push rod (14) abuts against the swing rail (10). A flexible block (25) is provided on the side of the clamping rod (12) that contacts the push rod (14).

4. The cold extrusion synchronous control device for asymmetric ring blanks according to claim 3, characterized in that, The push rod (14) is provided with a positioning arc surface (141), the inner diameter of which is equal to the inner diameter of the ring blank (24), and the clamping block (13) is provided with a circular arc surface (131), the inner diameter of which is equal to the inner diameter of the positioning arc surface (141).

5. The cold extrusion synchronous control device for asymmetric ring blanks according to claim 4, characterized in that, The feeding shaft (7) includes a rotating part (71) and a telescopic part (72). The rotating part (71) is rotatably connected to the frame (1), and the telescopic part (72) is slidably connected to the rotating part (71) and elastically connected to the rotating part (71). The feeding disc (8) is disposed on the telescopic part (72). The push rod (14) has a sliding gap (16) at the sliding part of the feeding disc (8). The feeding disc (8) is located at the sliding gap (16). There is a rubber pad (26), a positioning rod (17) is provided on the push rod (14), a sliding groove (18) is provided on the mold (4), the end of the positioning rod (17) is frustum-shaped, and two inclined surfaces (19) are provided on the sliding groove (18). The two inclined surfaces (19) cooperate with the two adjacent sides of the end of the positioning rod (17). An extrusion plate (20) is rotatably connected to the extrusion mechanism (3) through a torsion spring. The extrusion plate (20) abuts against the feeding tray (8).

6. The cold extrusion synchronous control device for asymmetric ring blanks according to claim 5, characterized in that, The clamping block (13) is hinged to the clamping rod (12), and there is a hinge gap (21) at the hinged part.

7. The cold extrusion synchronous control device for asymmetric ring blanks according to claim 2, characterized in that, Both sides of the guide rail (5) are provided with baffle plates (22). The width of the two baffle plates (22) is equal to the width of the ring blank (24). When the feeding tray (8) moves to the guide rail (5), the two baffle plates (22) block the bayonet (81).

Images