Hot die forging press

Abstract

The invention discloses a novel hot die forging press, and relates to the technical field of hot die forging equipment, comprising a frame and a main motor mechanism, a clutch mechanism, an upper ejector mechanism and a lower ejector mechanism arranged on the frame, the frame is provided with a die height adjustment mechanism for driving the slider to rise and fall relative to a connecting rod, the flywheel and the clutch are installed at one end of the crankshaft, the other end of the crankshaft is provided with a brake, the brake is connected to a signal transmitting mechanism for collecting working signals, compared with the prior art, the invention innovatively designs a clutch mechanism to enable the flywheel to drive the crankshaft to move through pneumatic action, realizes the transmission of flywheel energy to the crankshaft, enhances the clutch effect, and improves the stability and safety of the press, in the die height adjustment mechanism, the motor provides power to complete the die height adjustment, so as to adapt to the processing of different workpieces, and at the same time, a double protection decoder is achieved in the signal transmitting mechanism, which has the advantage of convenient maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of hot die forging equipment, in particular to a hot die forging press. Background Art

[0002] Hot die forging press is a series of products produced by introducing world advanced technology. The hot die forging press is used in the manufacturing industries of automobiles, tractors, internal combustion engines, ships, aviation, mining machinery, petroleum machinery or hardware tools. Forging presses include plate rolling machines, shearing machines, punching machines, presses, hydraulic presses, oil presses, bending machines, etc. The forging method is that the metal billet passes through two relatively rotating fan-shaped dies to produce plastic deformation to form the workpiece. It is a special form of forming rolling (longitudinal rolling), so it is increasingly widely used in modern forging production and is an indispensable high-precision forging equipment for modern forging production.

[0003] Most traditional hot die forging presses use hydraulic pumps combined with ejector rods for ejection. Due to long-term forging, the service life of the hydraulic pump will be greatly reduced. In addition, as the material deforms during operation, the oxide shell on the surface with almost no plasticity will be broken into oxide scale fragments. The fragments will enter the hydraulic pump, affecting the normal operation of the hydraulic pump and reducing production efficiency. The existing forging press generally includes a main motor mechanism, a clutch mechanism, an upper ejection mechanism, and a lower ejection mechanism. Due to the limitations of the structure of each mechanism, such as the clutch mechanism: the clutch brake is the most core key component for improving the quality of press-processed parts and production efficiency. The friction clutch structure of the existing technology is complex, the performance is unstable, and the clutch effect is poor, which has a great impact on the stability and safety of the press; for example, the upper ejection mechanism does not have a protective device and a reset device, which makes the ejection action not stable enough; for example, the overall volume effect of the die height adjustment mechanism is large, resulting in the smooth operation of the slider, which makes the whole machine not stable enough. During operation, the degree of danger is high, so it does not meet the existing needs. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide a hot die forging press that can improve the working stability of each mechanism, reduce the degree of danger, ensure the stable operation of the whole machine, and improve the product processing accuracy.

[0005] To achieve the above-mentioned purpose, the present invention proposes a hot die forging press, comprising a frame and a main motor mechanism, a clutch mechanism, an upper ejection mechanism and a lower ejection mechanism arranged on the frame, the main motor mechanism is connected to a flywheel through a transmission belt, the flywheel is connected to a crankshaft through a clutch mechanism, the crankshaft is connected to a connecting rod, the connecting rod is connected to a slider, the crankshaft is rotated to be driven by the connecting rod to move the slider up and down, the slider is connected to the upper ejection mechanism, the frame is provided with a die height adjustment mechanism for driving the slider to rise and fall relative to the connecting rod, the flywheel and the clutch are installed at one end of the crankshaft, and the other end of the crankshaft A brake is provided on the clutch, and a signal transmitting mechanism for collecting working signals is connected to the brake. The clutch mechanism includes a clutch cylinder and a clutch body fixedly connected to the flywheel. A clutch piston and a movable friction gear ring are provided in the clutch cylinder. A friction block fixing plate is provided on the crankshaft, and a friction block is provided on one side of the friction block fixing plate. An air inlet interface for accessing an air source is provided on the clutch cylinder. The air source can push the clutch piston to move axially and lock it with the movable friction gear ring. The movable friction gear ring pushes the friction block to move so that it is combined with the clutch body to complete the transmission of the crankshaft.

[0006] Preferably, the mold height adjustment mechanism includes a mold height adjustment motor and a mold height adjustment lever, the mold height adjustment motor is connected to the worm via gear transmission, the worm is meshed with the worm wheel, the worm wheel is rotatably connected to the ball head connecting rod, the mold height adjustment lever is provided with a serrated nut, the serrated nut is threaded on the ball head connecting rod, rotating the ball head connecting rod can make the serrated nut reciprocate and rise and fall on the ball head connecting rod, and lifting and lowering the mold height adjustment lever can drive the slider to rise and fall relative to the connecting rod.

[0007] Preferably, a worm gear seat is provided on the slider, the spherical surface of the ball head connecting rod is connected to the ball seat via a ball head pressure cover, a worm gear pressure cover is provided on the worm gear seat so that the worm gear can be installed in the worm gear seat, and the ball head pressure cover is connected to the worm gear via threads.

[0008] Preferably, the transmitting mechanism includes a decoder arranged on a frame and a brake inlet flange arranged on the brake, a crankshaft sprocket connected to the crankshaft is provided in the brake inlet flange, a decoder shaft is connected to the decoder via a coupling, a decoder sprocket is provided on the decoder shaft, and the crankshaft sprocket and the decoder sprocket are connected via a chain drive.

[0009] Preferably, the decoder is fixed to the frame via a pulley seat, a decoder bearing is provided on the pulley seat, the decoder shaft is installed in the decoder bearing, and the brake air inlet flange is provided with an opening for the chain to pass through and connect with the decoder sprocket.

[0010] Preferably, the main motor mechanism includes a motor base installed on the frame via a motor fixing base and a main motor located on the motor base, the motor base is raised and lowered on the motor fixing base via a motor adjusting screw, the main motor is connected to a motor wheel via a motor axle, self-lubricating bearings are provided at both ends of the motor axle, the self-lubricating bearings are installed on a motor shaft base, and the motor shaft base is connected to the motor base.

[0011] Preferably, the crankshaft and the friction block fixing plate are connected via a square key and are tensioned and fixed by an oblique key arranged on the crankshaft. A top key screw is axially arranged on the oblique key. The outer cover of the friction block fixing plate is provided with a crankshaft pressure plate, and the crankshaft pressure plate is screwed and fixed to the end of the crankshaft.

[0012] Preferably, the upper ejecting mechanism comprises an upper ejecting plate provided with an upper ejecting rod and an upper working table, the upper ejecting plate is screwed with an ejecting bolt, the frame is provided with a ejecting safety block located above the ejecting bolt, the sliding block is provided with an ejecting plate spring seat, the upper ejecting plate is provided with a spring guide sleeve, a ejecting plate spring is sleeved between the spring guide sleeve and the ejecting plate spring seat, and a ejecting rod spring is provided between the upper working table and the upper fixing rod.

[0013] Preferably, the lower ejection mechanism includes a lower ejection rod and a lower working table which are lifted and lowered, and a lower ejection cylinder arranged on a frame; the lower ejection cylinder is transmission-connected to the lower ejection rod via a transmission assembly; a lower ejection guide plate is provided on the frame; a lower ejection guide sleeve is provided in the lower ejection guide plate which is sleeved on the lower ejection rod; the lower working table and the lower ejection guide plate are embedded with copper sleeves and fixed by copper sleeve pressure plates; the lower ejection rod is sleeved with a return spring located below the lower ejection guide plate.

[0014] Preferably, the transmission assembly includes a material pushing seat arranged on the frame and a material pushing shaft located below the lower material pushing rod, two ends of the material pushing shaft pass through the material pushing seat to form a rotating connection, the material pushing seat is provided with a material pushing support connected to the material pushing shaft through a tensioning sleeve, the material pushing support is connected to the lower material pushing cylinder, the lower material pushing cylinder is connected to the air barrel through an air pipe, the material pushing shaft is connected to a material pushing cam seat, the material pushing cam seat is provided with a material pushing roller shaft, the material pushing roller shaft is provided with a material pushing roller through the copper gap of the material pushing roller, and rotating the material pushing shaft can drive the material pushing roller to move up and down, so that the lower material pushing rod undergoes a material pushing movement.

[0015] Beneficial effects of the present invention: the flywheel is driven to rotate by the main motor mechanism, and the flywheel drives the crankshaft to rotate through the clutch action of the clutch mechanism. The rotation of the crankshaft can drive the slider to move up and down to achieve stamping. Compared with the prior art, the clutch mechanism of the present invention is innovatively designed so that the flywheel drives the crankshaft to move through pneumatic action, thereby achieving the transmission of flywheel energy to the crankshaft, enhancing the clutch effect, and improving the stability and safety of the press. The volume of the die height adjustment mechanism is reduced, and the die height adjustment is completed by power provided by the motor to adapt to different workpiece processing, thereby improving the accuracy and reliability of the die height adjustment. At the same time, a double protection decoder is achieved in the sending mechanism, which has the advantage of convenient maintenance.

[0016] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the clutch mechanism in the present invention;

[0019] Figure 3 It is a schematic diagram of the connection between the crankshaft and the friction block fixing plate in the present invention;

[0020] Figure 4 A schematic structural diagram of the mold height adjustment mechanism of the present invention;

[0021] Figure 5 A schematic diagram of the structure of the sending mechanism in the present invention;

[0022] Figure 6 A schematic diagram of the structure of the main motor mechanism in the present invention;

[0023] Figure 7 A schematic diagram of the structure of the upper ejection mechanism in the present invention;

[0024] Figure 8 A schematic diagram of the structure of the lower ejection mechanism in the present invention;

[0025] Fig. 9 A schematic diagram of the structure of the transmission assembly in the lower ejection mechanism of the present invention;

[0026] Fig.10 A schematic diagram of the connection between the lower ejecting mechanism and the lower ejecting rod in the present invention.

[0027] In the figure: 1-frame, 2-main motor mechanism, 3-clutch mechanism, 4-lower ejector mechanism, 5-flywheel, 6-crankshaft, 7-connecting rod, 8-slider, 9-brake, 21-motor fixing seat, 22-motor seat, 23-main motor, 24-motor adjustment screw, 25-motor wheel shaft, 26-motor wheel, 27-self-lubricating bearing, 28-motor shaft seat, 31-clutch cylinder, 32-clutch piston, 33-active friction gear ring, 34-friction block fixing plate, 35-friction block, 36-intake interface, 332-clutch body, 37-oblique key, 38-top key bolt, 39-crankshaft pressure plate, 41-lower ejector rod, 42-lower worktable, 43-lower ejector cylinder, 44-lower ejector guide plate, 45-lower ejector guide sleeve, 46-copper sleeve, 47-copper sleeve pressure plate, 48-reset Spring, 51-upper ejector rod, 52-upper punching plate, 53-upper worktable, 54-elevator safety block, 55-elevator plate spring seat, 56-spring guide sleeve, 57-punch plate spring, 58-elevator rod spring, 61-elevator seat, 62-ejector shaft, 63-tensioning sleeve, 64-elevator support, 65-air barrel, 66-ejector cam seat, 67-ejector roller shaft, 68-ejector roller copper alloy, 69-push roller, 71-decoder, 72-brake intake flange, 73-crankshaft sprocket, 74-decoder shaft, 75-decoder sprocket, 76-pulley seat, 77-decoder bearing, 81-mold height adjustment motor, 82-mold height adjustment lever, 84-worm gear, 85-ball head connecting rod, 86-serrated nut, 87-worm gear seat, 88-ball head pressure cover, 89-ball seat, 810-worm gear pressure cover. DETAILED DESCRIPTION

[0028] See also Figures 1 to 10The present invention comprises a frame 1 and a main motor mechanism 2, a clutch mechanism 3, an upper ejection mechanism and a lower ejection mechanism 4 arranged on the frame 1. The main motor mechanism 2 is connected to a flywheel 5 through a transmission belt, the flywheel 5 is connected to a crankshaft 6 through a clutch mechanism 3, the crankshaft 6 is connected to a connecting rod 7, the connecting rod 7 is connected to a slider 8, the crankshaft 6 is rotated and the connecting rod 7 is driven to move the slider 8 up and down, the slider 8 is connected to the upper ejection mechanism, the frame 1 is provided with a mold height adjustment mechanism for driving the slider 8 to rise and fall relative to the connecting rod 7, the flywheel 5 and the clutch mechanism 3 are installed at one end of the crankshaft 6, the other end of the crankshaft 6 is provided with a brake 9, the brake 9 is connected to a signal transmission mechanism for collecting working signals, the clutch mechanism 3 includes a clutch cylinder 31 and a clutch body 332 fixedly connected to the flywheel 5, the clutch cylinder 31 is provided with a clutch piston 32 and a movable friction gear ring 33, the crankshaft 6 is provided with a friction block fixed disk 34, one side of the friction block fixed disk 34 is provided with a friction block 35, the clutch cylinder 31 is provided with an air inlet interface 36 for accessing an air source, the air source can push the clutch piston 32 to move axially and make it locked and connected with the movable friction gear ring 33, the movable friction gear ring 33 pushes the friction block 35 to move and make it combined with the clutch body 32 to complete the transmission of the crankshaft 6. The crankshaft 6 is connected to the friction block fixed disk 34 by a square key and is tightened and fixed by an inclined key 37 set on the crankshaft 6, the inclined key 37 is axially provided with a top key screw 38, the outer cover of the friction block fixed disk 34 is provided with a crankshaft pressure plate 39, and the crankshaft pressure plate 39 is screwed and fixed on the end of the crankshaft 6. The square key connection method makes its strength several times higher than that of ordinary flat key connection, and it is also easy to install.

[0029] The working principle of the clutch mechanism is that the air source enters through the air inlet interface 36, pushing the clutch piston 32 to move to the right, and the movable friction ring gear 33 is locked and connected with the clutch piston 32, so the movable friction ring gear 33 is also pushed to move to the right, and the friction block 35 and the friction block fixed plate 34 are axially movable. The movable friction ring gear 33 pushes the friction block 35 to move to the right to make it contact with the clutch body 332, and the clutch body 32 and the friction block fixed plate 34 are formed into one in the radial direction (without mutual movement) through the strong friction force, the friction block fixed plate 34 is hard connected to the crankshaft 6, and the clutch body 332 is fixedly connected to the flywheel 5, so the flywheel 5 drives the crankshaft 6 to move through the pneumatic action, thereby realizing the energy transmission of the flywheel 5 to the crankshaft 6.

[0030] Specifically, the mold height adjustment mechanism includes a mold height adjustment motor 81 and a mold height adjustment lever 82. The mold height adjustment motor 81 is connected to a worm via a gear transmission. The worm is meshed with a worm wheel 84. The worm wheel 84 is rotatably connected to a ball head connecting rod 85. A serrated nut 86 is provided on the mold height adjustment lever 82. The serrated nut 86 is screwed on the ball head connecting rod 85. Rotating the ball head connecting rod 85 can make the serrated nut 86 reciprocate and rise and fall on the ball head connecting rod 85. Lifting and lowering the mold height adjustment lever 82 can drive the slider 8 to rise and fall relative to the connecting rod. A worm wheel seat 87 is provided on the slider 8. The spherical surface of the ball head connecting rod 85 is connected to a ball seat 89 via a ball head pressure cover 88. A worm wheel pressure cover 810 is provided on the worm wheel seat 87 to install the worm wheel 84 in the worm wheel seat 87. The ball head pressure cover 88 is connected to the worm wheel 84 via a threaded connection. The die height adjustment motor 81 rotates and drives the worm to rotate through the gear transmission, the worm drives the worm wheel 84 to rotate, the worm wheel 84 drives the ball head connecting rod 85 to rotate, the ball head connecting rod 85 drives the sawtooth nut 86 to move up and down through the thread action, thereby driving the die height adjustment lever 82 to move up and down, the up and down movement of the die height adjustment screw 82 drives the eccentric sleeve to rotate through the key connection, and the rotation of the eccentric sleeve drives the bottom surface of the slider 8 to rise and fall relative to the fixed height of the center of the connecting rod 7 to achieve the purpose of adjusting the die height. The impact of the punching force of the hot die forging press on the adjustment mechanism is small, and the entire mechanism can be smaller than the die height adjustment mechanism of the ordinary punch press. Compared with the ordinary punch press, the current 630-ton punch press can use the adjustment mechanism of the size of the ordinary 80-ton punch press, and the slider area can also be reduced, reducing the weight of the entire slider mechanism, which is conducive to the smooth operation of the slider.

[0031] Specifically, the transmitting mechanism includes a decoder 71 arranged on the frame 1 and a brake air inlet flange 72 arranged on the brake 9, a crankshaft sprocket 73 connected to the crankshaft 6 is arranged in the brake air inlet flange 72, a decoder shaft 74 is connected to the decoder 71 via a coupling, which plays a role of double protection for the decoder 71, a decoder sprocket 75 is arranged on the decoder shaft 74, the crankshaft sprocket 73 and the decoder sprocket 75 are connected via a chain transmission, and the decoder shaft 74 passes through two bearings, so the operation will be stable to prevent shaking from damaging the decoder 71, the decoder 71 is fixed to the frame 1 via a pulley seat 76, a decoder bearing 77 is arranged on the pulley seat 76, the decoder shaft 74 is installed in the decoder bearing 77, and an opening is provided on the brake air inlet flange 72 for the chain to pass through and be connected to the decoder sprocket 75. Since the other end of the crankshaft of the hot die forging machine is equipped with a flywheel clutch, and the flywheel clutch rotates with the crankshaft, it is not convenient to install the signaling device. However, this machine uses the characteristic that the brake 9 does not rotate with the crankshaft, and sets the signaling mechanism on the brake, which has the advantage of convenient maintenance.

[0032] Specifically, the main motor mechanism 2 includes a motor seat 22 mounted on the frame 1 via a motor fixing seat 21 and a main motor 23 located on the motor seat 22. The motor seat 22 is raised and lowered on the motor fixing seat 21 via a motor adjusting screw 24. A motor wheel 26 is connected to the main motor 23 via a motor axle 25. Self-lubricating bearings 27 are provided at both ends of the motor axle 25. The self-lubricating bearings 27 are mounted on a motor shaft seat 28. The motor shaft seat 28 is connected to the motor seat 22. This structure is used to prevent the motor shaft from breaking when the motor wheel 26 is subjected to excessive force, because the motor wheel is generally directly mounted on the motor shaft, so the force is unilaterally supported. Now, double-support force is adopted to improve stability and strength.

[0033] Specifically, the upper ejection mechanism includes an upper ejection plate 52 provided with an upper ejection rod 51 and an upper work table 53, the upper ejection plate 52 is screwed with an ejection bolt 59, the frame 1 is provided with an ejection safety block 54 located above the ejection bolt 59, the slider 8 is provided with an ejection plate spring seat 55, the upper ejection plate 52 is provided with a spring guide sleeve 56, a ejection plate spring 57 is sleeved between the spring guide sleeve 56 and the ejection plate spring seat 55, and a ejection rod spring 58 is provided between the upper work table 53 and the upper fixing rod 51. The principle of the upper ejection mechanism: the up and down movement of the slider 8 drives the upper ejection plate 52 to move upward. The ejection bolt 59 is fixed on the upper ejection plate 52. The height can be adjusted by using its own thread to adjust the ejection stroke. When the ejection bolt 59 moves upward with the upper ejection plate 52 to a certain height, the head of the ejection bolt 59 hits the ejection safety block 54. At this time, the slider 8 continues to move upward, and the ejection bolt 59 pushes the upper ejection plate 52 to move downward to push the upper ejection rod 51 to move downward to realize the upper ejection action. The ejection safety block 54 plays a role in protecting the fuselage and the ejection bolt 59. The principle is that the ejection safety block 54 has a circle of weak rings through calculation and processing. When the upper ejection mold is stuck, the weak ring of the ejection safety block 54 will be first damaged so that the ejection bolt 53 can continue to rise to protect the thread of the ejection bolt 59 from being damaged.

[0034] Specifically, the lower ejection mechanism 4 includes a lower ejection rod 41 and a lower workbench 42 that are lifted and lowered, and a lower ejection cylinder 43 that is arranged on the frame 1. The lower ejection cylinder 43 is connected to the lower ejection rod 41 through a transmission assembly. The frame 1 is provided with a lower ejection guide plate 44, and a lower ejection guide sleeve 45 that is sleeved on the lower ejection rod 41 is provided in the lower ejection guide plate 44. A copper sleeve 46 is embedded on the lower workbench 42 and the lower ejection guide plate 44 and fixed by a copper sleeve pressing plate 47. The lower ejection rod 41 is sleeved with a return spring 48 located below the lower ejection guide plate 44. The power of the mechanism is provided by the lower ejection cylinder 43, which has the advantages of convenient control and maintenance.

[0035] Specifically, the transmission assembly includes a material ejection seat 61 arranged on the frame 1 and a material ejection shaft 62 located below the lower material ejection rod 41. The material ejection seat 61 is made of ductile iron, which is wear-resistant and cost-saving. Both ends of the material ejection shaft 62 pass through the material ejection seat 61 to form a rotation connection. The material ejection shaft 62 is prevented from moving left and right by its own steps. A material ejection support 64 connected to the material ejection shaft 62 is swingably provided on the material ejection seat 61 through a tensioning sleeve 63. The material ejection support 64 is connected to the lower material ejection rod 41. The lower ejecting cylinder 43 is connected to the air cylinder 43, and the lower ejecting cylinder 43 is connected to the air barrel 65 through the air pipe to ensure the stability of the operating air pressure of the lower ejecting cylinder 43. The ejecting shaft 62 is connected to the ejecting cam seat 66, and the ejecting cam seat 66 is provided with a ejecting roller shaft 67. The ejecting roller shaft 67 is provided with a ejecting roller 69 through the gap of the ejecting roller joint 68. Rotating the ejecting shaft 62 can drive the ejecting roller 69 to move up and down, so that the lower ejecting rod 41 can eject. The lower ejecting cylinder 43 drives the ejecting shaft 62 to rotate by pulling the ejecting support 64 up and down. The rotation of the ejecting shaft 62 drives the ejecting cam seat 66 to move up and down, thereby driving the ejecting roller 69 to move up and down. The upward movement of the ejecting roller 69 pushes the lower ejecting rod 415 upward.

[0036] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A hot die forging press, comprising a frame (1) and a main motor mechanism (2), a clutch mechanism (3), an upper ejection mechanism and a lower ejection mechanism (4) arranged on the frame (1), wherein the main motor mechanism (2) is connected to a flywheel (5) by a transmission belt, the flywheel (5) is connected to a crankshaft (6) by a clutch mechanism (3), the crankshaft (6) is connected to a connecting rod (7), the connecting rod (7) is connected to a slider (8), the crankshaft (6) is rotated and the connecting rod (7) drives the slider (8) to move up and down, and the slider (8) is connected to the upper ejection mechanism, characterized in that: The frame (1) is provided with a die height adjustment mechanism for driving the slider (8) to rise and fall relative to the connecting rod (7); the flywheel (5) and the clutch mechanism (3) are mounted on one end of the crankshaft (6); a brake (9) is provided on the other end of the crankshaft (6); a signal transmission mechanism for collecting working signals is connected to the brake (9); the clutch mechanism (3) comprises a clutch cylinder (31) and a clutch body (332) fixedly connected to the flywheel (5); a clutch piston (32) is provided in the clutch cylinder (31). and a movable friction gear ring (33), the crankshaft (6) is provided with a friction block fixing plate (34), one side of the friction block fixing plate (34) is provided with a friction block (35), the clutch cylinder (31) is provided with an air inlet interface (36) for connecting to an air source, the air source can push the clutch piston (32) to move axially and make it locked with the movable friction gear ring (33), the movable friction gear ring (33) pushes the friction block (35) to move so that it is combined with the clutch body (332) to complete the transmission of the crankshaft (6); The main motor mechanism (2) comprises a motor seat (22) mounted on the frame (1) via a motor fixing seat (21) and a main motor (23) located on the motor seat (22); the motor seat (22) is arranged on the motor fixing seat (21) in a lifting manner via a motor adjusting screw (24); a motor wheel (26) is connected to the main motor (23) via a motor axle (25); self-lubricating bearings (27) are provided at both ends of the motor axle (25); the self-lubricating bearings (27) are mounted on a motor shaft seat (28); and the motor shaft seat (28) is connected to the motor seat (22); The upper ejection mechanism comprises an upper ejection plate (52) provided with an upper ejection rod (51) and an upper work table (53); an ejection bolt (59) is screwed onto the upper ejection plate (52); an ejection safety block (54) located above the ejection bolt (59) is provided on the frame (1); an ejection plate spring seat (55) is provided on the slider (8); a spring guide sleeve (56) is provided on the upper ejection plate (52); a ejection plate spring (57) is sleeved between the spring guide sleeve (56) and the ejection plate spring seat (55); an ejection rod spring (58) is provided between the upper work table (53) and the upper fixing rod (51); and the ejection safety block 54 has a circle of weak ring processed by calculation.

2. A hot die forging press according to claim 1, characterized in that: The die height adjustment mechanism comprises a die height adjustment motor (81) and a die height adjustment lever (82); the die height adjustment motor (81) is connected to a worm via a gear transmission; the worm is meshed with a worm wheel (84); the worm wheel (84) is rotatably connected to a ball head connecting rod (85); a sawtooth nut (86) is provided on the die height adjustment lever (82); the sawtooth nut (86) is screwed onto the ball head connecting rod (85); rotating the ball head connecting rod (85) can cause the sawtooth nut (86) to reciprocate and rise and fall on the ball head connecting rod (85); and raising and lowering the die height adjustment lever (82) can drive the slider (8) to rise and fall relative to the connecting rod.

3. A hot die forging press according to claim 2, characterized in that: A worm gear seat (87) is provided on the slider (8); the spherical surface of the ball head connecting rod (85) is connected to the ball seat (89) via a ball head pressure cover (88); a worm gear pressure cover (810) is provided on the worm gear seat (87) so that the worm gear (84) is installed in the worm gear seat (87); and the ball head pressure cover (88) is connected to the worm gear (84) via threads.

4. A hot die forging press according to any one of claims 1 to 3, characterized in that: The signal transmitting mechanism comprises a decoder (71) arranged on a frame (1) and a brake air inlet flange (72) arranged on the brake (9); a crankshaft sprocket (73) connected to the crankshaft (6) is arranged in the brake air inlet flange (72); a decoder shaft (74) is connected to the decoder (71) via a coupling; a decoder sprocket (75) is arranged on the decoder shaft (74); and the crankshaft sprocket (73) and the decoder sprocket (75) are connected via a chain transmission.

5. A hot die forging press according to claim 4, characterized in that: The decoder (71) is fixed to the frame (1) via a pulley seat (76); a decoder bearing (77) is provided on the pulley seat (76); the decoder shaft (74) is installed in the decoder bearing (77); and the brake air inlet flange (72) is provided with an opening for the chain to pass through and connect to the decoder sprocket (75).

6. A hot die forging press according to claim 1, characterized in that: The crankshaft (6) and the friction block fixing plate (34) are connected via a square key and are tensioned and fixed by an oblique key (37) provided on the crankshaft (6); a top key screw (38) is axially provided on the oblique key (37); an outer cover of the friction block fixing plate (34) is provided with a crankshaft pressure plate (39); and the crankshaft pressure plate (39) is screwed and fixed to the end of the crankshaft (6).

7. A hot die forging press according to claim 1, characterized in that: The lower ejection mechanism (4) comprises a lower ejection rod (41) and a lower workbench (42) which are arranged to be lifted and lowered, and a lower ejection cylinder (43) which is arranged on the frame (1); the lower ejection cylinder (43) is connected to the lower ejection rod (41) through a transmission assembly; a lower ejection guide plate (44) is arranged on the frame (1); a lower ejection guide sleeve (45) which is sleeved on the lower ejection rod (41) is arranged inside the lower ejection guide plate (44); a copper sleeve (46) is embedded on the lower workbench (42) and the lower ejection guide plate (44) and is fixed by a copper sleeve pressing plate (47); and a return spring (48) which is located below the lower ejection guide plate (44) is sleeved on the lower ejection rod (41).

8. A hot die forging press according to claim 7, characterized in that: The transmission assembly comprises a material ejection seat (61) arranged on the frame (1) and a material ejection shaft (62) located below the lower material ejection rod (41), the two ends of the material ejection shaft (62) pass through the material ejection seat (61) to form a rotational connection, and a material ejection support (64) connected to the material ejection shaft (62) is swingably provided on the material ejection seat (61) via a tensioning sleeve (63), the material ejection support (64) is connected to the lower material ejection cylinder (43), and the lower material ejection rod (41) is connected to the lower material ejection cylinder (43). The material cylinder (43) is connected to the air barrel (65) via an air pipe, the push shaft (62) is connected to a push cam seat (66), the push cam seat (66) is provided with a push roller shaft (67), the push roller shaft (67) is provided with a push roller (69) via a gap between a push roller joint (68), and the push shaft (62) can be rotated to drive the push roller (69) to move up and down, so that the lower push rod (41) can move to push the material.

Images