Feeding structure of hot forging forming machine

Abstract

The invention relates to the technical field of hot upsetting forming equipment, in particular to a feeding structure of a hot forging forming machine, which comprises a rack arranged on a hot upsetting machine body, the hot upsetting machine body comprises a machine tool, a mounting table arranged on the machine tool and a hot upsetting head slidably arranged on the machine tool, and the hot upsetting head is arranged opposite to the mounting table. A pushing hole is formed in the mounting table in a penetrating mode, and a pushing assembly for feeding materials periodically is arranged on the rack. And the material pushing assembly comprises a discharging box arranged on the rack, a material pushing plate arranged on the rack in a sliding mode and a feeding rod arranged on the machine tool in a sliding mode, the discharging box is obliquely arranged, the bottom end of the discharging box is flush with the material pushing hole, the feeding rod and the material pushing hole are correspondingly arranged, and a heating piece for heating the blank is arranged on the side, close to the hot upsetting head, of the discharging box. The hot upsetting device has the advantages that synchronism of feeding and hot upsetting can be achieved conveniently, and the effect of synchronous stopping operation of the two steps when problems occur is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of hot upsetting machines, and in particular to a feeding structure of a hot upsetting machine. Background Art

[0002] Hot forming machine, also known as hot upsetting machine, is mainly used for metal hot forming processing equipment such as fasteners, bearings, and auto parts. Since bolts are the most common parts in various mechanical equipment, they have different performance requirements for different working conditions. When used as conventional fasteners, bolts need to withstand certain tension and shear forces, especially the connection between the nut and the screw, which needs to have sufficient strength and toughness. Therefore, the forming of nuts often uses hot upsetting machines to hot upset the ends to refine the grains of metal materials and densify the structure, thereby improving the strength and toughness of the bolts.

[0003] A Chinese patent document with publication number CN118595355A discloses a bolt hot forging machine and processing method based on high-frequency heating. The disclosed equipment includes a step-feeding mechanism for step-feeding bolt blanks in a row; a high-frequency heating mechanism, including a first coil and a second coil, the first coil and the second coil are respectively suspended above and below the ends of the bolt blanks during the step-feeding process, and a high-frequency magnetic field is used to heat the bolt blanks to a temperature at which they can be plastically deformed; a clamping and discharging mechanism for clamping and placing the heated bolt blanks; a clamping and positioning mechanism for fixing the bolt blanks; an impact forging mechanism for stamping the ends of the bolt blanks; a driving device and a transmission mechanism, the driving device provides power, and the transmission mechanism transmits power to the clamping and discharging mechanism, the clamping and positioning mechanism, and the impact forging mechanism, respectively.

[0004] With regard to the above-mentioned related technologies, when hot upsetting bolts, the blank is first conveyed and guided by the provided support plate and stepping plate, and then heated when the bolt passes through the high-frequency magnetic field. Finally, the heated blank is clamped by the clamping and unloading mechanism and conveyed to the hot processing and forming area for hot upsetting. The entire hot processing and forming is divided into two relatively independent steps of feeding and hot upsetting, and are controlled by two different power sources. When problems such as material jamming occur in production, the two steps need to be stopped at the same time. If the two steps are stopped asynchronously, it is easy to affect the inspection and maintenance time of the entire production line, thereby easily affecting production efficiency, so it needs to be improved. Summary of the invention

[0005] In order to facilitate the synchronization of feeding and hot upsetting, and further improve the synchronous stopping operation of the two steps when problems occur, thereby reducing maintenance problems caused by asynchrony, the present application provides a feeding structure of a hot punching forming machine.

[0006] The feeding structure of a hot forging machine provided by this application adopts the following technical solution: A feeding structure of a hot forging machine, including a frame provided on the hot forging machine body. The hot forging machine body includes a machine tool, a mounting table provided on the machine tool, and a hot forging head slidably arranged on the machine tool. The hot forging head is arranged opposite to the mounting table. A through push hole is opened on the mounting table. The frame is provided with a pushing component for periodic feeding, a synchronization component for making the pushing period of the pushing component consistent with the hot forging period of the hot forging machine, and a cooling component for adaptively cooling the blank; The pushing component includes a blanking box provided on the frame, a pushing plate slidably arranged on the frame, and a feeding rod slidably arranged on the machine tool. The blanking box is arranged obliquely, and the bottom end of the blanking box is flush with the push hole. The feeding rod is arranged corresponding to the push hole. A heating element for heating the blank is provided on one side of the blanking box close to the hot forging head; The synchronization component includes a driving synchronous wheel provided on the machine tool, a feeding connecting rod connected to the feeding rod, and a synchronous member for driving the pushing plate to slide. The driving synchronous wheel is in transmission connection with the power gear of the hot forging machine body. The driving synchronous wheel is coaxially provided with a driven synchronous wheel. One end of the first connecting rod is rotatably connected to the eccentric position of the end face of the driven synchronous wheel. One end of the first connecting rod away from the driven synchronous wheel is rotatably connected to the second connecting rod. One end of the second connecting rod away from the end rotatably connected to the first connecting rod is rotatably connected to the feeding connecting rod; When the hot forging head moves away from the mounting table, the feeding rod pushes the blank towards the push hole, and the pushing plate moves in the direction away from the inside of the machine tool; When the hot forging head moves towards the mounting table, the feeding rod moves in the direction away from the push hole, and the pushing plate moves in the direction close to the inside of the machine tool.

[0007] By adopting the above technical solution, when hot forging a bolt fastener, first, the hot forging head is located at the position farthest from the installation table. At this time, the blank in the blanking box automatically falls under the action of gravity to a position corresponding to the feeding rod. When the hot forging head moves away from the installation table, the driving synchronous wheel rotates to drive the driven synchronous wheel to rotate. At this time, since the driving synchronous wheel is eccentrically rotationally connected to the first connecting rod, during the process of the driving synchronous wheel rotating to drive the driven synchronous wheel to rotate, the first connecting rod is driven to deflect. The deflection of the first connecting rod drives the second connecting rod to deflect, thereby driving the feeding rod to deflect, and further realizing the sliding of the feeding rod. The feeding rod abuts against the blank and moves towards the inside of the feeding hole until the blank completely passes through the feeding hole. Immediately afterwards, when the hot forging head moves towards the direction close to the installation table, at this time, the pushing plate moves towards the direction away from the inside of the machine tool, moves the blank to the hot forging position for hot forging until the blank is hot forged into shape. At the same time, the feeding rod moves towards the direction away from the feeding hole until the blank in the blanking box falls again to the position communicated with the feeding hole for the next feeding.

[0008] Since the driving synchronous wheel is transmissionally connected to the power gear of the hot forging machine body, it realizes the synchronous operation of one power source for material feeding and hot forging. When a fault occurs or shutdown for maintenance is required, it ensures the synchronous stop of the hot forging of the clinker, thereby reducing the problem of more serious subsequent faults when material jamming occurs, and further improving the maintenance efficiency and maintenance time.

[0009] Optionally, a clamping block is provided at one end of the pushing plate close to the inside of the machine tool. A clamping groove is formed on the clamping block, and one end of the clamping groove away from the pushing plate is open, and the clamping groove is movably corresponding to the feeding hole. The synchronizing member includes a sliding block slidably arranged on the frame and a fourth connecting rod rotatably connected to the sliding block. The fourth connecting rod is rotatably connected to the eccentric position on the end face of the driving synchronous wheel. A limiting structure for sliding limit of the sliding block is provided on the frame. The eccentric position where the fourth connecting rod is connected to the driving synchronous wheel and the eccentric position where the first connecting rod is connected to the driven synchronous wheel are located on different sides of the rotating shaft of the driving synchronous wheel. A sliding member for sliding adjustment of the pushing plate is also provided on the sliding block.

[0010] By adopting the above technical solution, during the process of hot forging and forming a bolt, since the driving synchronous wheel is eccentrically rotationally connected to the fourth connecting rod, and the driven synchronous wheel is eccentrically rotationally connected to the first connecting rod, and the two eccentric connection positions are located on different sides of the rotating shaft of the driving synchronous wheel, when the hot forging head is located at the position farthest from the installation table, at this time, the connection position between the driven synchronous wheel and the first connecting rod is located at the position farthest from the installation table, that is, the feeding rod is located in the feeding hole. At this time, the connection position between the driving synchronous wheel and the fourth connecting rod is located at the position farthest from the hot forging head, that is, the pushing plate is located at the position corresponding to the feeding hole, and the clamping groove corresponds to the feeding hole.

[0011] Meanwhile, through the provided limiting structure, during the rotation of the driving synchronous pulley, the sliding block is always stably slid without deflection, thereby realizing the stable sliding of the pushing plate and improving the stability during the entire hot forging feeding process.

[0012] Optionally, the sliding member includes a limiting block provided on the sliding block. The pushing plate is elastically arranged on the machine tool. One side of the limiting block close to the pushing plate is arc-shaped. The thickness of the limiting block on the side close to the fourth connecting rod is narrower than that on the side far from the fourth connecting rod. A limiting wheel is provided on the pushing plate, and the limiting wheel is in contact with the arc side of the limiting block.

[0013] By adopting the above technical solution, during the process of the sliding block being driven by the driving synchronous pulley to slide, at this time, the limiting block on the sliding block abuts against the limiting wheel. Since the limiting block is elastically arranged on the machine tool, under the action of the elastic restoring force, the limiting wheel is always in contact with the inclined side of the limiting block. Since the thickness of the limiting block on the side close to the fourth connecting rod is narrower than that on the side far from the fourth connecting rod, when the driving synchronous pulley drives the fourth connecting rod to move in the direction away from the hot forging head, at this time, the pushing plate moves in the direction away from the inside of the machine tool. When the driving synchronous pulley drives the fourth connecting rod to move in the direction close to the hot forging head, at this time, the pushing plate moves in the direction close to the inside of the machine tool.

[0014] Optionally, the heating member includes an induction heating plate provided on the top side of the blanking box. A telescopic coil is arranged in the induction heating plate. The induction heating plate is slidably arranged on the blanking box, and the induction heating plate is arranged in parallel with the top side of the blanking box. The cooling assembly includes a feeding track provided on the machine tool on the side of the installation table close to the pushing rod. A sliding groove corresponding to the pushing hole is provided on the feeding track, and the sliding groove is communicated with the bottom side of the blanking box. The feeding track is hollow inside. A partition is arranged in the feeding track. The cavity in the feeding track is divided into a cooling cavity and a heat preservation cavity by the partition. The partition is slidably arranged in the feeding track, and a linkage member for synchronously sliding and adjusting the partition and the induction heating plate is also provided on the machine tool.

[0015] By adopting the above technical solution and setting an induction heating plate with a retractable coil, different lengths of heating are required when hot upsetting bolts of different types. Therefore, the heating length of the blank can be adjusted by adjusting the length corresponding to the induction heating plate and the blanking box. At the same time, the parts that need to be deformed by hot upsetting need to be heated to the forging temperature for subsequent high-temperature deformation, while the parts that do not need to be deformed need to ensure strength, thereby ensuring that deformation is not easy to occur during the hot upsetting process and improving dimensional accuracy. The cooling chamber and the insulation chamber provided in the feeding track can cool the parts of the blank that do not need to be heated, thereby reducing the high temperature of the unheated section of the blank caused by heat conduction. At the same time, the insulation section is provided to insulate the heating section, thereby improving the subsequent hot upsetting forming accuracy.

[0016] At the same time, the sliding groove is set to receive the blanks falling from the unloading box, reducing unexpected shaking of the blanks and improving the feeding and hot upsetting accuracy.

[0017] Since the heating part of the blank can be adjusted by adjusting the length of the induction heating plate to achieve different hot upsetting requirements, the corresponding cooling part also needs to be adjusted. The partition and the induction heating plate are adjusted synchronously through the set linkage parts, further improving the convenience of adjustment.

[0018] At the same time, through the partitioned cooling chamber and the heat preservation chamber, due to the high thermal conductivity of the metal, one end of the blank is heated to the austenite temperature by the induction heating plate before hot upsetting, and the other end of the blank reaches the austenite critical temperature under the action of heat conduction. The unheated part is cooled by the cooling chamber. Here, the end that is not heated to the austenite critical temperature is cooled to ensure its strength. At the same time, the part adjacent to the heating section is quickly cooled and quenched, thereby improving the strength of the connection between the deformed part and the non-deformed part of the blank and improving the strength of the critical part.

[0019] Optionally, the cooling assembly also includes a limit plate arranged on the material box, the limit plate and the inner bottom wall of the material box together form a cavity for a single billet to pass through, and a heat-averaging roller is rotatably arranged on the inner bottom wall of the material box, and a plurality of groups of heat-averaging rollers are provided, and the plurality of groups of heat-averaging rollers are evenly spaced in sequence, and the plurality of groups of heat-averaging rollers rotate synchronously, and the heat-averaging rollers are movably fitted and pressed against the billet.

[0020] By adopting the above technical scheme, the limiting plate is set to fit the blank so that only one blank can pass through at all times, thereby reducing the jamming caused by the large amount of blank falling at a single time. At the same time, the uniform heating roller and the limiting plate are set to cooperate to realize the rotation of the blank and achieve uniform heating of the heating end of the blank, thereby improving the uniformity of heating and then improving the quality of subsequent hot upsetting.

[0021] Meanwhile, by setting a plurality of soaking rollers that rotate synchronously to fit the blank and rotate, the stable rotation of the blank is achieved, and the uniform heating of each blank is realized.

[0022] Optionally, linkage gears are provided at the rotating shafts of the soaking rollers, and the linkage gears of adjacent soaking rollers are meshed with each other. A moving rack is slidably arranged on the blank feeding box, and a moving gear is rotatably connected to the blank feeding box. The moving gear is meshed with the moving rack, and a first bevel gear is coaxially arranged on the moving gear. A second bevel gear is arranged on the rotating shaft of any one of the soaking rollers. The first bevel gear is meshed with the second bevel gear, and one end of the moving rack is connected to the limit block.

[0023] By adopting the above technical solution, when the limit block is driven by the driving synchronous pulley to slide, the limit block drives the moving rack to slide, thereby driving the moving gear to rotate. The rotation of the moving gear drives the first bevel gear to rotate, thereby driving the rotation of the second bevel gear and the soaking roller, so as to realize the rotation of the blank, achieve uniform heating and uniform blank feeding, and thus realize uniform heating of the heating end of the blank, reducing the problem of inconsistent plastic strength on different sides of the blank caused by uneven heating.

[0024] Optionally, the cooling assembly further includes a cooling box arranged on the machine tool. Coolant is stored in the cooling box. A liquid inlet is communicated with the cooling cavity, and a liquid outlet is opened on the partition plate. Both the liquid inlet and the liquid outlet are communicated with the cooling box, and both the liquid inlet and the liquid outlet are located on the side of the feeding track away from the hot forging head. A piston plate is slidably arranged in the feeding track. The piston plate is in fit with the inner peripheral wall of the feeding track. A first transmission rod is slidably penetrated through the feeding track. One end of the first transmission rod is connected to the feeding rod, and the other end of the first transmission rod is connected to the piston plate.

[0025] By adopting the above technical solution, when the feeding rod reciprocates to slide to drive the first transmission rod to slide, thereby driving the first transmission rod to slide the piston plate, the rapid replacement of the coolant is realized, so as to improve the cooling efficiency of each blank. At the same time, the power consumption caused by the continuous operation of the external power source is reduced. At the same time, both the liquid inlet and the liquid outlet are arranged on the side of the feeding track away from the hot forging head, improving the retention time of the coolant in the cooling cavity.

[0026] Optionally, a circulation hole is opened on the piston plate, and a blocking plate is rotatably arranged at the circulation hole on the piston plate, and the end of the blocking plate away from its rotating shaft is in movable fit with the piston plate.

[0027] By adopting the above technical solution, when the piston plate is driven by the feeding rod to slide, when the piston plate slides in one direction, at this time, the blocking plate rotates in the direction of blocking the communication hole, so as to realize the stable replacement of the coolant. When the piston plate slides in the other direction, at this time, the blocking plate rotates in the direction of opening the communication hole. When the piston plate rotates, the liquid in the cooling cavity turbulates through the communication hole at this time, so that the coolant in the cooling cavity is fully mixed, thereby improving the subsequent cooling efficiency and cooling uniformity.

[0028] In summary, the present application includes at least one of the following beneficial technical effects: 1. By providing the driving synchronous wheel, the driven synchronous wheel and the first connecting rod, when hot upsetting is performed, the driving synchronous wheel is driven by the power gear of the hot upsetting machine body. When periodic hot upsetting is performed, the driving synchronous wheel is driven to rotate periodically, thereby driving the first connecting rod to swing periodically, and then realizing the periodic feeding of the blank. The entire feeding and hot upsetting adopt the same cycle and the same power source, reducing the problems of difficult maintenance and time delay caused by out-of-step shutdown when a failure occurs; 2. By providing the fourth connecting rod, the limiting block and the limiting wheel, when the hot upsetting machine body works, the driving synchronous wheel is driven to rotate, and then the periodic swinging of the fourth connecting rod is driven, realizing the periodic sliding of the limiting block and the clamping block, and then realizing periodic feeding, pushing, and then realizing periodic hot upsetting. And the fourth connecting rod and the first connecting rod are both set to be eccentric, and the two eccentric positions are set on different sides, so as to realize the intermittent movement of feeding and pushing, and then realize periodic hot upsetting; 3. By providing the feeding track, the cooling cavity and the heat preservation cavity with variable volume opened in the feeding track, and the induction heating plate slidably arranged on the blanking box, when heating different bolts at different regions and different parts, at this time, by adjusting the position of the induction heating plate, the blank is heated at different lengths. Since the temperature rise will improve the plastic deformation ability of the blank, by cooling the unheated end and keeping the heated end warm, the unheated end of the blank remains hard during the hot upsetting process, so that it is not easy to deform, and the hot upsetting accuracy is improved. Description of the Drawings

[0029] Figure 1 is the overall structural schematic diagram of the feeding structure of a hot forming machine according to an embodiment of the present application; Figure 2 is the overall structural schematic diagram from another perspective; Figure 3 is the connection structural schematic diagram of the synchronous component; Figure 4 is the connection structural schematic diagram in the feeding state; Figure 5 is the connection structural schematic diagram in the pushing state; Figure 6 It is a schematic diagram of the connection structure of the material pushing component; Figure 7 It is a schematic diagram of the connection structure of the material pushing component from another perspective; Figure 8 It is a schematic diagram of the connection structure of the blanking box.

[0030] Reference numerals: 1. Hot heading machine body; 11. Machine tool; 12. Hot heading head; 13. Installation table; 14. Material pushing hole; 15. Frame; 2. Material pushing component; 21. Blanking box; 22. Material pushing plate; 23. Feeding rod; 24. Heating element; 221. Clamping block; 222. Clamping groove; 223. Abutting plate; 224. Abutting spring; 225. Abutting column; 241. Induction heating plate; 3. Synchronization component; 31. Driving synchronous wheel; 32. Driven synchronous wheel; 33. First connecting rod; 34. Second connecting rod; 35. Synchronizing member; 351. Fourth connecting rod; 36. Limiting structure; 37. Sliding member; 371. Limiting block; 372. Limiting wheel; 373. Limiting spring; 4. Cooling component; 41. Feeding track; 411. Cooling cavity; 412. Heat preservation cavity; 42. Sliding groove; 43. Partition; 44. Linking member; 441. Linking rod; 45. Limiting plate; 46. Heat equalizing roller; 461. Driving wheel; 462. Transmission belt; 47. Moving rack; 471. Moving gear; 472. First bevel gear; 473. Second bevel gear; 48. Cooling box; 481. Liquid inlet; 482. Liquid outlet; 483. Piston plate; 484. First transmission rod; 49. Flow hole; 491. Sealing plate. Detailed implementation manners

[0031] The following further describes the present application in detail with reference to the attached Figure 1-8 drawings.

[0032] The embodiment of the present application discloses a feeding structure of a hot forming machine. Refer to Figure 1 , a feeding structure of a hot forming machine includes a frame 15 arranged on a hot heading machine body 1. It should be noted that in the present application, the hot heading machine body 1 includes a horizontally arranged machine tool 11, an installation table 13 is arranged on the machine tool 11, the installation table 13 is arranged vertically, a hot heading head 12 is also slidably arranged on the machine tool 11, the sliding direction of the hot heading head 12 is consistent with the extending direction of the machine tool 11, and the hot heading head 12 is a common crank - connecting rod transmission structure of a hot heading machine / stamping machine, which is not elaborated in the present application.

[0033] Meanwhile, a power gear is provided at the rotating shaft of the crankshaft, and a rotating motor coaxial and fixed with the power gear is the power source of the hot forging machine body 1. The installation table 13 is arranged opposite to the hot forging head 12, and a material pushing hole 14 is formed in the installation table 13. The feeding structure of a hot forging and forming machine in the present application includes a material pushing assembly 2 arranged on the frame 15 for periodic feeding, a synchronization assembly 3 for making the pushing period of the material pushing assembly 2 consistent with the hot forging period of the hot forging machine, and a cooling assembly 4 for adaptively cooling the blank.

[0034] Refer to Figure 1 and Figure 2 , the material pushing assembly 2 includes a blank feeding box 21 arranged on the frame 15. The blank feeding box 21 is arranged obliquely from high to low, and the bottom end of the blank feeding box 21 is flush with the height of the material pushing hole 14. Meanwhile, a limiting plate 45 is fixedly arranged on the blank feeding box 21, and a cavity for a single blank to pass through is left between the limiting plate 45 and the inner bottom wall of the blank feeding box 21.

[0035] Meanwhile, the material pushing assembly 2 further includes a feeding rod 23 slidably arranged on the machine tool 11. The sliding direction of the feeding rod 23 is consistent with the extending direction of the machine tool 11, and the feeding rod 23 is arranged corresponding to the material pushing hole 14. Meanwhile, a heating member 24 for heating the blank is arranged on the blank feeding box 21. In the present application, the heating member 24 is an induction heating plate 241 embedded with a telescopic coil. A fixing block is arranged on the machine tool 11, and the induction heating plate 241 is slidably arranged on the fixing block, and the sliding direction of the induction heating plate 241 is consistent with the extending direction of the machine tool 11. The telescopic coil is a plurality of induction coils connected in series in the extending direction of the machine tool 11. One end of the telescopic coil is fixedly connected to the fixing block, and the other end of the telescopic coil is fixedly connected to the end of the induction heating plate 241 away from the fixing block. During the sliding adjustment of the induction heating plate 241, the distance between adjacent induction coils of the telescopic coil changes, so that only the induction heating plate 241 overlapping with the blank feeding box 21 has the induction heating function.

[0036] Refer to Figure 3 , Figure 4 and Figure 5 , the material pushing assembly 2 further includes a material pushing plate 22 slidably arranged on the machine tool 11. The sliding direction of the material pushing plate 22 is horizontal and perpendicular to the extending direction of the machine tool 11. A clamping block 221 is fixedly connected to the end of the material pushing plate 22 close to the inside of the machine tool 11. A clamping groove 222 is formed in the clamping block 221. The clamping groove 222 is movably communicated with the material pushing hole 14, and the end of the clamping groove 222 away from the material pushing plate 22 is open.

[0037] A mounting block is fixedly connected to the pusher plate 22. A butting plate 223 is rotatably connected to the mounting block. A butting column 225 is slidably arranged on the mounting block. One end of the butting column 225 protrudes from the mounting block movably. A butting spring 224 is fixedly connected to the part of the butting column 225 located inside the mounting block. One end of the butting spring 224 away from the end fixedly connected to the butting column 225 is fixedly connected to the mounting block. The end of the butting column 225 protruding from the mounting block is movably attached and pressed tightly against the butting plate 223. The butting plate 223 and the clamping block 221 enclose a cavity for clamping the blank.

[0038] In order to achieve periodic feeding of the blank, the synchronization assembly 3 includes a driving synchronization wheel 31 rotatably arranged on the frame 15. The driving synchronization wheel 31 is meshed with the power gear. The synchronization assembly 3 further includes a feeding connecting rod rotatably connected to the feeding rod 23 and a synchronizing member 35 for driving the sliding of the pusher plate 22. A driven synchronization wheel 32 is coaxially arranged on the driving synchronization wheel 31. A first connecting rod 33 is rotatably connected to the eccentric position of the end face of the driven synchronization wheel 32. One end of the first connecting rod 33 away from the driven synchronization wheel 32 is rotatably connected to a second connecting rod 34. One end of the second connecting rod 34 away from the end rotatably connected to the first connecting rod 33 is rotatably connected to the feeding connecting rod. During the process of the driving synchronization wheel 31 rotating to drive the driven synchronization wheel 32 to rotate, the first connecting rod 33 is driven to deflect. The deflection of the first connecting rod 33 drives the second connecting rod 34 to deflect, thereby driving the feeding rod 23 to deflect, and further realizing the sliding of the feeding rod 23. The feeding rod 23 presses against the blank and moves towards the inside of the feeding hole 14 until the blank completely passes through the feeding hole 14.

[0039] The synchronizing member 35 further includes a synchronizing member 35 for sliding the feeding connecting rod and the pusher plate 22. The synchronizing member 35 includes a sliding block slidably arranged on the frame 15 and a fourth connecting rod 351 rotatably connected to the sliding block. The fourth connecting rod 351 is rotatably connected to the eccentric position of the end face of the driving synchronization wheel 31. A limiting structure 36 for sliding and limiting the sliding block is arranged on the frame 15. The eccentric position where the fourth connecting rod 351 is connected to the driving synchronization wheel 31 and the eccentric position where the first connecting rod 33 is connected to the driven synchronization wheel 32 are located on different sides of the axis of the driving synchronization wheel 31.

[0040] The driven synchronization wheel 32 is eccentrically rotatably connected to the first connecting rod 33, and the two eccentric connection positions are located on different sides of the axis of the driving synchronization wheel 31. Thus, when the hot heading die 12 is at the position farthest from the mounting table 13, at this time, the connection position between the driven synchronization wheel 32 and the first connecting rod 33 is at the position farthest from the mounting table 13, that is, the feeding rod 23 is located inside the feeding hole 14. At this time, the connection position between the driving synchronization wheel and the fourth connecting rod 351 is at the position farthest from the hot heading die 12, that is, the pusher plate 22 is located at the position corresponding to the feeding hole 14, and the clamping groove 222 corresponds to the feeding hole 14, realizing the periodic feeding and pushing of the blank.

[0041] Meanwhile, in order to achieve the sliding of the pusher plate 22, the synchronization component 3 further includes a sliding member 37. The sliding member 37 includes a limiting block 371 fixed on the sliding block. The pusher plate 22 is elastically arranged on the machine tool 11, and the side of the limiting block 371 close to the pusher plate 22 is arc-shaped. A limiting spring 373 is fixedly connected to the side of the pusher plate 22 away from the clamping block 221. The limiting spring 373 drives the pusher plate 22 to move away from the inside of the machine tool 11. The thickness of the limiting block 371 on the side close to the fourth connecting rod 351 is narrower than the thickness on the side away from the fourth connecting rod 351. A limiting wheel 372 is arranged on the pusher plate 22, and the limiting wheel 372 is in contact with the arc side of the limiting block 371. When the driving synchronous wheel 31 drives the fourth connecting rod 351 to move away from the hot forging head 12, at this time the pusher plate 22 moves away from the inside of the machine tool 11. When the driving synchronous wheel 31 drives the fourth connecting rod 351 to move towards the hot forging head 12, at this time the pusher plate 22 moves towards the inside of the machine tool 11.

[0042] When hot forging bolts of different models, the lengths that need to be heated are also different. Since the parts that need to be deformed during hot forging need to be heated to the forging temperature for subsequent high-temperature deformation, while the parts that do not need to be deformed need to ensure strength, so as to ensure that they are not easily deformed during hot forging and improve the dimensional accuracy. Therefore, referring to Figure 6 、 Figure 7 、 Figure 8 ,the cooling component 4 includes a feeding track 41 fixed on the frame 15. A sliding groove 42 is opened on the feeding track 41. The sliding groove 42 is correspondingly communicated with the pushing hole 14. And the feeding track 41 is hollow. A partition 43 is slidably arranged in the feeding track 41. The sliding direction of the partition 43 is consistent with the extending direction of the machine tool 11. At the same time, the partition 43 divides the cavity in the feeding track 41 into a cooling cavity 411 and a heat preservation cavity 412. The cooling cavity 411 is located on the side away from the hot forging head 12, and the heat preservation cavity 412 is located on the side close to the hot forging head 12. And a linkage 44 for synchronously sliding and adjusting the partition 43 and the induction heating plate 241 is also arranged on the machine tool 11. The linkage 44 includes a linkage rod 441 fixedly connected to the induction heating plate 241. The arrangement direction of the linkage rod 441 is consistent with the length direction of the feeding track 41.

[0043] A soaking roller 46 is rotatably arranged on the inner bottom wall of the blanking box 21. There are multiple groups of soaking rollers 46, and the multiple groups of soaking rollers 46 are arranged at equal intervals in sequence, and the multiple groups of soaking rollers 46 rotate synchronously. The soaking roller 46 is in active contact and pressing with the blank. A transmission wheel 461 is arranged at the rotating shaft of the soaking roller 46. The transmission wheels 461 of adjacent soaking rollers 46 are connected by a transmission belt 462. A moving rack 47 is slidably arranged on the blanking box 21. A moving gear 471 is rotatably connected to the blanking box 21. The moving gear 471 meshes with the moving rack 47, and a first bevel gear 472 is coaxially arranged on the moving gear 471. A second bevel gear 473 is arranged on the rotating shaft of any one soaking roller 46. The first bevel gear 472 meshes with the second bevel gear 473. One end of the moving rack 47 is connected to the limit block 371.

[0044] Through the cooperation of the arranged soaking roller 46 and the limiting plate 45, the rotation of the blank is realized to uniformly heat the heating end of the blank, improve the uniformity of heating, and further improve the subsequent hot forging quality.

[0045] At the same time, by arranging multiple soaking rollers 46 that rotate synchronously and fit with the blank to rotate, the stable rotation of the blank is realized, and the uniform heating of each blank is realized.

[0046] The cooling assembly 4 further includes a cooling box 48 arranged on the machine tool 11. The cooling box 48 stores cooling liquid. A liquid inlet 481 is communicated in the cooling cavity 411. A liquid outlet 482 is opened on the partition plate 43. Both the liquid inlet 481 and the liquid outlet 482 are communicated with the cooling box 48, and both the liquid inlet 481 and the liquid outlet 482 are located on the side of the feeding track 41 away from the hot forging head 12. A piston plate 483 is slidably arranged in the feeding track 41. The piston plate 483 fits with the inner peripheral wall of the feeding track 41. A first transmission rod 484 is slidably penetrated through the feeding track 41. One end of the first transmission rod 484 is connected to the feeding rod 23, and the other end of the first transmission rod 484 is connected to the piston plate 483. A flow hole 49 is opened on the piston plate 483. A blocking plate 491 is rotatably arranged at the flow hole 49 of the piston plate 483, and the end of the blocking plate 491 away from its rotating shaft is in active contact with the piston plate 483.

[0047] The implementation principle of the feeding structure of a hot forging machine in an embodiment of this application is as follows: First, the hot upsetting head 12 is located at the position farthest from the mounting table 13. At this time, the blank in the blanking box 21 automatically falls under the action of gravity to the position corresponding to the feeding rod 23. When the hot upsetting head 12 moves away from the mounting table 13, the driving synchronous wheel 31 rotates to drive the driven synchronous wheel 32 to rotate. At this time, since the driving synchronous wheel 31 is eccentrically rotationally connected to the first connecting rod 33, during the process of the driving synchronous wheel 31 rotating to drive the driven synchronous wheel 32 to rotate, the first connecting rod 33 is driven to deflect. The deflection of the first connecting rod 33 drives the second connecting rod 34 to deflect, thereby driving the feeding rod 23 to deflect, and further realizing the sliding of the feeding rod 23. The feeding rod 23 presses against the blank and moves towards the pushing hole 14 until the blank completely passes through the pushing hole 14. Immediately afterwards, when the hot upsetting head 12 moves towards the direction close to the mounting table 13, at this time, the pushing plate 22 moves towards the direction away from the inside of the machine tool 11, moves the blank to the hot upsetting position for hot upsetting until the blank is hot forged into shape. At the same time, the feeding rod 23 moves towards the direction away from the pushing hole 14 until the blank in the blanking box 21 falls again to the position communicating with the pushing hole 14 for the next feeding.

[0048] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A feeding structure of a hot forming machine, comprising a frame (15) arranged on a hot forging machine body (1), the hot forging machine body (1) comprising a machine tool (11), a mounting platform (13) arranged on the machine tool (11), and a hot forging head (12) slidably arranged on the machine tool (11), the hot forging head (12) and the mounting platform (13) being arranged opposite to each other, characterized in that: A material pushing hole (14) is provided on the mounting table (13), and a material pushing component (2) for periodically feeding materials, a synchronization component (3) for making the material pushing cycle of the material pushing component (2) consistent with the hot upsetting cycle of the hot upsetting machine, and a cooling component (4) for adaptively cooling the blank are provided on the frame (15); A material pusher assembly (2) comprises a material unloading box (21) arranged on a frame (15), a material pusher plate (22) slidably arranged on the frame (15), and a material feeder rod (23) slidably arranged on a machine tool (11); the material unloading box (21) is arranged obliquely, and the bottom end of the material unloading box (21) is flush with the material pusher hole (14); the material feeder rod (23) is arranged corresponding to the material pusher hole (14); and a heating element (24) for heating the blank is provided on a side of the material unloading box (21) close to the hot heading head (12); The synchronous assembly (3) comprises an active synchronous wheel (31) provided on the machine tool (11), a feeding connecting rod connected to the feeding rod (23), and a synchronous member (35) for driving the push plate (22) to slide, wherein the active synchronous wheel (31) is connected to the power gear of the hot heading machine body (1) in a transmission manner, the active synchronous wheel (31) is coaxially provided with a driven synchronous wheel (32), and the driven synchronous wheel (32) is rotatably connected to a first connecting rod (33) at an eccentric position of an end surface, the first connecting rod (33) is rotatably connected to a second connecting rod (34) at a portion away from the driven synchronous wheel (32), and the second connecting rod (34) is rotatably connected to the feeding connecting rod at one end away from the first connecting rod (33) in a rotational connection.

2. The feeding structure of a hot punch forming machine according to claim 1, characterized in that: A clamping block (221) is provided at one end of the push plate (22) close to the machine tool (11); a clamping groove (222) is provided on the clamping block (221); and an end of the clamping groove (222) away from the push plate (22) is open; and the clamping groove (222) is movably corresponding to the push hole (14); the synchronous member (35) comprises a sliding block slidably arranged on the frame (15) and a fourth connecting rod (351) rotatably connected to the sliding block; the fourth connecting rod ( The first connecting rod (351) is rotatably connected to the eccentric end face of the active synchronous wheel (31), the frame (15) is provided with a limit structure (36) for slidingly limiting the sliding block, the eccentric point where the fourth connecting rod (351) is connected to the active synchronous wheel (31) and the eccentric point where the first connecting rod (33) is connected to the driven synchronous wheel (32) are located on different sides of the rotating shaft of the active synchronous wheel (31), and the sliding block is also provided with a sliding member (37) for slidingly adjusting the push plate (22).

3. The feeding structure of a hot punch forming machine according to claim 2, characterized in that: The sliding member (37) comprises a limit block (371) arranged on the sliding block, the push plate (22) is elastically arranged on the machine tool (11), and the side of the limit block (371) close to the push plate (22) is in an arc shape, the thickness of the side of the limit block (371) close to the fourth connecting rod (351) is narrower than the thickness of the side away from the fourth connecting rod (351), and the push plate (22) is provided with a limit wheel (372), and the limit wheel (372) is in contact with the arc side of the limit block (371).

4. The feeding structure of the hot punch forming machine according to claim 3 is characterized in that: The heating element (24) comprises an induction heating plate (241) disposed on the top side of the material discharge box (21), a retractable coil being disposed in the induction heating plate (241), the induction heating plate (241) being slidably disposed on the material discharge box (21), and the induction heating plate (241) being arranged parallel to the top side of the material discharge box (21), the cooling assembly (4) comprising a feeding track (41) disposed on the machine tool (11) and located on a side of the mounting platform (13) close to the feeding rod (23), the feeding track (41) being provided with a The feeding track (41) is provided with a corresponding sliding groove (42), and the sliding groove (42) is communicated with the bottom side of the unloading box (21); the feeding track (41) is hollow inside, and a partition (43) is provided inside the feeding track (41); the cavity inside the feeding track (41) is divided into a cooling chamber (411) and a heat preservation chamber (412) by the partition (43); the partition (43) is slidably arranged inside the feeding track (41), and the machine tool (11) is also provided with a linkage member (44) for synchronously slidingly adjusting the partition (43) and the induction heating plate (241).

5. The feeding structure of the hot punch forming machine according to claim 4, characterized in that: The cooling assembly (4) further comprises a limit plate (45) arranged on the material discharge box (21), wherein the limit plate (45) and the inner bottom wall of the material discharge box (21) enclose a cavity for a single blank to pass through, and a heat-averaging roller (46) is rotatably arranged on the inner bottom wall of the material discharge box (21), wherein a plurality of groups of the heat-averaging rollers (46) are arranged in sequence at even intervals, and the plurality of groups of the heat-averaging rollers (46) rotate synchronously, and the heat-averaging rollers (46) are movably fitted and pressed against the blank.

6. The feeding structure of the hot punch forming machine according to claim 5, characterized in that: A transmission wheel (461) is provided at the rotating shaft of the equalizing roller (46), and the transmission wheels (461) of adjacent equalizing rollers (46) are connected to each other by a transmission belt (462). A movable rack (47) is slidably provided on the material discharge box (21), and a movable gear (471) is rotatably connected to the material discharge box (21). The movable gear (471) is meshed with the movable rack (47), and a first bevel gear (472) is coaxially provided on the movable gear (471). A second bevel gear (473) is provided on the rotating shaft of any one of the equalizing rollers (46), and the first bevel gear (472) is meshed with the second bevel gear (473). One end of the movable rack (47) is connected to the limit block (371).

7. A feeding structure of a hot punch forming machine according to claim 6, characterized in that: The cooling assembly (4) further comprises a cooling box (48) disposed on the machine tool (11), wherein a coolant is stored in the cooling box (48), wherein a liquid inlet (481) is connected to the cooling chamber (411), wherein a liquid outlet (482) is provided on the partition plate (43), wherein the liquid inlet (481) and the liquid outlet (482) are both connected to the cooling box (48), and wherein the liquid inlet (481) and the liquid outlet (482) are both located on the feeding track (411). 1) A piston plate (483) is slidably disposed on a side away from the hot heading head (12) and inside the feeding track (41), the piston plate (483) is in contact with the inner circumferential wall of the feeding track (41), and a first transmission rod (484) is slidably disposed inside the feeding track (41), one end of the first transmission rod (484) is connected to the feeding rod (23), and the other end of the first transmission rod (484) is connected to the piston plate (483).

8. The feeding structure of the hot punch forming machine according to claim 7, characterized in that: The piston plate (483) is provided with a circulation hole (49), and a blocking plate (491) is rotatably provided on the piston plate (483) at the circulation hole (49), and one end of the blocking plate (491) away from the rotation axis is movably fitted to the piston plate (483).

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