Hot forging pressure structure

Abstract

The invention relates to the technical field of hot die forging presses, in particular to a hot forging pressure structure which comprises a die frame composed of a base, a left stand column, a right stand column and a cross beam, the upper portions of the two stand columns are connected through the cross beam, and a clamping piece located on the base is arranged below the cross beam and comprises a lower air cylinder located on the base. A lower piston is slidably connected into the lower air cylinder, a lower pressing plate used for containing a forging workpiece is connected to the lower piston through a lower pressing rod, side air cylinders are arranged on the two sides of the lower pressing plate correspondingly, the ends, away from the lower air cylinder, of the side air cylinders communicate with the lower end of the lower air cylinder, side pistons are slidably connected into the lower air cylinder, and the opposite sides of the two side pistons are provided with side pressing rods correspondingly. A side pressing plate is connected to the end of the side pressing rod, a sliding box is arranged above the lower pressing plate, and a control assembly used for controlling the sliding box to move up and down so as to conduct stamping forging on the forged workpiece is arranged on the die frame. The stability of a forged workpiece is improved, and the forging efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hot die forging presses, and in particular to a hot forging pressure structure. Background Art

[0002] Forging presses are used for stamping and forming. When the forging press is working, the motor drives the large pulley through the V-belt, which drives the crank slider mechanism through the gear pair and clutch, so that the slider and the punch go down straight to impact the blank.

[0003] For example, on September 26, 2012, a patent with the publication number CN202447567U, entitled a hot forging production line, was published. The patent includes a press and a feeding robot. A transmission shaft and a crankshaft are rotated on the press frame. A flywheel and a clutch brake are installed on one end of the transmission shaft. The flywheel is connected to the motor by transmission. The other end of the transmission shaft is connected to the crankshaft by transmission. A slider A is vertically slidably arranged between the wall panels on both sides of the frame and is connected to the crankshaft by transmission through a connecting rod A and an eccentric wheel A. A slider B is vertically slidably arranged outside the left wall panel of the frame and is connected to the crankshaft by transmission through a connecting rod B and an eccentric wheel B. A slider C is vertically slidably arranged outside the right wall panel of the frame and is connected to the crankshaft by transmission through a connecting rod C and an eccentric wheel C. A corresponding work table is provided on the frame. This technical solution is used to realize multi-step and multi-station processing in the hot forging process. However, the applicant found that when the slider A impacts the blank below, the blank is unstable, which affects the processing efficiency of the press. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a hot forging pressure structure to solve the problem of reduced processing efficiency.

[0005] The cam is provided with a plurality of support members, each of which is provided with a plurality of support members, each of which is provided with a plurality of support members, each of which is provided with a plurality of support members, each of which is provided with a plurality of support members.

[0006] Optionally, the control component includes a driving member installed on the mold frame, the driving member is transmission-connected to a crankshaft installed between the two columns, the driving member is used to control the rotation of the crankshaft, both ends of the crankshaft respectively pass through the two columns and are movably connected to the columns, the middle part of the crankshaft is rotatably connected to a connecting rod, and the lower end of the connecting rod is rotatably connected to the sliding box through a small shaft.

[0007] Optionally, the sliding box body is provided with a mounting hole rotatably connected to the small shaft, and ears for hanging a balancing cylinder are provided on both sides of the sliding box body. The sliding box body is provided with an open groove, and the bottom of the open groove is connected to the side wall of the open groove through a first circular arc, and an oil storage place is provided at the corner of the bottom of the open groove, and the bottom of the open groove of the oil storage place is connected to the side wall of the open groove through a second circular arc.

[0008] Optionally, the driving member includes a control motor connected to the column, the control motor is located on one side above the crankshaft, the output end of the control motor is connected to a pulley, a flywheel is connected to the pulley below, the flywheel is connected to a pinion through a transmission shaft, the transmission shaft is located above the crankshaft, the pinion is located on the other side above the crankshaft, the pinion is connected to a large gear through a clutch.

[0009] Optionally, a rack is provided on the side wall of the lower pressure rod, and a movable part connected to the base is provided on one side of the rack, and the movable part is connected to a braking part that cooperates with the rack for braking. The movable part is used to control the braking part to move toward the rack and contact with the rack to achieve contact braking between the braking part and the rack.

[0010] Optionally, the movable member includes a movable telescopic cylinder connected to the base, and a telescopic end of the movable telescopic cylinder is connected to the braking member.

[0011] Optionally, the braking member includes a mounting plate, a rotating shaft is rotatably provided on the mounting plate, a ratchet is coaxially connected to the rotating shaft, a plurality of ratchets cooperating with the rack are arranged at equal angles on the outer ring of the ratchet, a braking pawl cooperating with the ratchet is provided on one side of the ratchet, the braking pawl is rotatably provided on the mounting plate via the rotating shaft, a torsion spring is sleeved on the rotating shaft, and both ends of the torsion spring are respectively connected to or abutted against the braking pawl.

[0012] Optionally, the moving member is connected to a mounting plate on the braking member, and the moving member is connected to the base via a lower air cylinder.

[0013] Optionally, a plurality of suction cups for fixing the forged workpiece are provided on the upper end surface of the lower pressing plate.

[0014] Optionally, an air suction pipe connected to the suction cup is provided in the lower pressure plate, and the air suction pipe is connected to an air suction valve.

[0015] Beneficial effects of the present invention: A hot forging pressure structure provided by the present invention, when it is necessary to stamp and forge the forged workpiece, the forged workpiece is placed on the lower pressure plate, the lower pressure plate moves downward, the lower piston and the lower pressure rod move downward, and since the lower end of the lower air cylinder is connected to the side air cylinder, the two side pistons move toward each other and approach each other, driving the two side pressure plates to move toward each other to clamp the forged workpiece, thereby improving the stability of the forged workpiece, and when the control component controls the sliding box to move downward to impact the forged workpiece, if the forged workpiece moves downward, it will drive the two side pressure plates to move toward each other to further stamp and forge the forged workpiece, thereby improving the forging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the driving member of the present invention; Figure 3 It is a structural schematic diagram of the sliding box of the present invention; Figure 4 It is a schematic diagram of the partial internal structure of the sliding box of the present invention; Figure 5 It is a schematic structural diagram of the brake component of the present invention.

[0018] In the figure: 1. mold frame; 2. base; 3. crossbeam; 4. column; 5. driving part; 6. crankshaft; 7. connecting rod; 8. small shaft; 9. sliding box; 10. slide groove; 11. clamping part; 12. lower pressure plate; 13. lower pressure rod; 14. lower air cylinder; 15. lower piston; 16. supporting spring; 17. side pressure plate; 18. side pressure rod; 19. side air cylinder; 20. side piston; 21. moving part; 22. braking part; 23. mounting plate; 24. rotating shaft; 25. ratchet; 26. ratchet; 27. rack; 28. brake pawl; 91. mounting hole; 92. hanging ear; 93. opening groove; 94. first arc; 95. oil storage place; 96. second arc. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figure 1 and Figure 5 As shown, a hot forging pressure structure includes a die frame 1 consisting of a base 2, two left and right columns 4 and a crossbeam 3, the upper parts of the two columns 4 are connected by the crossbeam 3, the two columns 4 are vertically arranged on the base 2, and a clamping member 11 located on the base 2 is arranged below the crossbeam 3. The clamping member 11 includes a lower air cylinder 14 located on the base 2, a lower piston 15 is slidably connected in the lower air cylinder 14, and the lower piston 15 is connected to the bottom of the lower air cylinder 14 by a supporting spring 16. The lower piston 15 is connected to a lower pressing plate 12 for placing a forged workpiece through a lower pressing rod 13. Side air cylinders 19 are provided on both sides of the lower pressure plate 12, and one end of the side air cylinder 19 away from the lower air cylinder 14 is connected to the lower end of the lower air cylinder 14, and a side piston 20 is slidably connected in the lower air cylinder 14, and a side pressure rod 18 is provided on the side where the two side pistons 20 are arranged opposite to each other, and the end of the side pressure rod 18 is connected to a side pressure plate 17, and a sliding box 9 is provided above the lower pressure plate 12, and a slide groove 10 slidably connected to the sliding box 9 is provided on the side where the two columns 4 are arranged opposite to each other, and a control component for controlling the upward and downward movement of the sliding box 9 and thus stamping and forging the forged workpiece is provided on the mold frame 1.

[0022] When the forged workpiece needs to be stamped and forged, the forged workpiece is placed on the lower pressure plate 12, and the lower pressure plate 12 moves downward, and the lower piston 15 and the lower pressure rod 13 move downward. Since the lower end of the lower air cylinder 14 is connected to the side air cylinder 19, the two side pistons 20 move toward each other and drive the two side pressure plates 17 to move toward each other to clamp the forged workpiece, thereby improving the stability of the forged workpiece. When the control component controls the sliding box 9 to move downward to impact the forged workpiece, if the forged workpiece moves downward, it will drive the two side pressure plates 17 to move toward each other to further stamp and forge the forged workpiece, thereby improving the forging efficiency.

[0023] In order to facilitate the control of the rotation of the crankshaft 6 and thus realize the up and down movement of the sliding box 9, the control component includes a driving member 5 installed on the mold frame 1, and the driving member 5 is transmission-connected to the crankshaft 6 installed between the two columns 4. The driving member 5 is used to control the rotation of the crankshaft 6. The two ends of the crankshaft 6 respectively pass through the two columns 4 and are movably connected to the columns 4. The middle part of the crankshaft 6 is rotatably connected to a connecting rod 7, and the lower end of the connecting rod 7 is rotatably connected to the sliding box 9 through a small shaft 8.

[0024] The sliding box body 9 is provided with a mounting hole 91 rotatably connected to the small shaft 8, and ears 92 for hanging a balancing cylinder are provided on both sides of the sliding box body 9. The balancing cylinder is hung on the ears 92 to improve the balance of the sliding box body 9, and an opening groove 93 is provided on the sliding box body 9. The bottom of the opening groove 93 is connected to the side wall of the opening groove 93 by a first circular arc 94, and an oil storage area 95 is provided at the bottom corner of the opening groove 93. The bottom of the opening groove 93 of the oil storage area 95 is connected to the side wall of the opening groove 93 by a second circular arc 96. The setting of the first circular arc 94 and the second circular arc 96 is convenient for improving the strength between the bottom of the opening groove 93 and the side wall of the opening groove 93, thereby reducing the risk of cracking of the sliding box body 9 during impact.

[0025] like Figure 2 As shown, the driving member 5 includes a control motor connected to the column 4, the control motor is located on one side above the crankshaft 6, the output end of the control motor is connected to a pulley, the lower part of the pulley is connected to a flywheel through a transmission shaft, the flywheel is connected to a pinion through a transmission shaft, the transmission shaft is located above the crankshaft 6, the pinion is located on the other side above the crankshaft 6, the pinion is connected to a large gear through a transmission shaft, the large gear is connected to the end of the crankshaft 6 through a clutch, the driving member 5 is used to control the rotation of the crankshaft 6, the control motor is started, the pulley and the flywheel are driven to rotate in turn, the pinion is driven to rotate through the transmission shaft, and then the large gear and the crankshaft 6 are driven to rotate, thereby realizing the control of the rotation of the crankshaft 6.

[0026] A rack 27 is provided on the side wall of the lower pressure rod 13, and a moving part 21 connected to the base 2 is provided on one side of the rack 27. The moving part 21 is connected to a braking part 22 that cooperates with the rack 27 for braking. The moving part 21 is used to control the braking part 22 to move toward the rack 27 and contact with the rack 27 to achieve contact braking between the braking part 22 and the rack 27. In order to prevent the forged workpiece supported and fixed on the lower pressure plate 12 from becoming loose, the braking part 22 contacts with the rack 27 to prevent the forged workpiece from becoming loose.

[0027] The movable member 21 includes a movable telescopic cylinder connected to the base 2, and the telescopic end of the movable telescopic cylinder is connected to the brake member 22. The telescopic end of the movable telescopic cylinder is convenient for controlling the brake member 22 to be fixed left and right, and the extension of the movable telescopic cylinder is convenient for controlling the contact between the brake member 22 and the rack 27 to prevent the lower pressure rod 13 from moving upward, thereby reducing the risk of the clamped forging workpiece loosening.

[0028] like Figure 5 As shown, the brake member 22 includes a mounting plate 23, on which a rotating shaft 24 is rotatably provided, and a ratchet 25 is coaxially connected to the rotating shaft 24. The outer ring of the ratchet 25 is provided with a plurality of ratchet teeth 26 arranged at equal angles to cooperate with the rack 27, and a braking pawl 28 is provided on one side of the ratchet 25 to cooperate with the ratchet teeth 26. The braking pawl 28 is rotatably provided on the mounting plate 23 through a rotating shaft, and a torsion spring is sleeved on the rotating shaft, and the two ends of the torsion spring are respectively connected to the braking pawl 28. The movable pawl 28 is connected or abutted to prevent the forged workpiece supported and fixed on the lower pressure plate 12 from becoming loose. When the sliding box 9 impacts the forged workpiece on the lower pressure plate 12 downward, if the lower pressure plate 12 moves downward, the rack 27 drives the ratchet 25 to rotate downward, and then the braking pawl 28 brakes the ratchet 25, so that the ratchet 25 can rotate counterclockwise but not clockwise, driving the two side pressure plates 17 to move toward each other to clamp the forged workpiece more tightly, thereby preventing the forged workpiece from becoming loose.

[0029] The movable member 21 is connected to the mounting plate 23 on the brake member 22. The movable member 21 is used to control the left and right movement of the mounting plate 23, thereby controlling the contact between the ratchet 25 and the rack 27 to prevent the rack 27 from moving upward. The movable member 21 is connected to the base 2 through the lower air cylinder 14.

[0030] The upper end surface of the lower pressure plate 12 is provided with a plurality of suction cups for fixing the forged workpiece. The lower pressure plate 12 is provided with an air suction pipe connected to the suction cup. The air suction pipe is connected to an air suction valve. When the forged workpiece needs to be adsorbed and fixed, the air suction valve is started to facilitate the suction cup to adsorb and fix the forged workpiece, thereby further fixing the forged workpiece.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. The present invention is not limited to the above-mentioned implementation modes, that is, it does not mean that the present invention must rely on the above-mentioned methods and structures to be implemented. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0032] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot forging pressure structure, characterized in that: The mold frame (1) comprises a base (2), two left and right columns (4) and a crossbeam (3), wherein the upper parts of the two columns (4) are connected by the crossbeam (3), the two columns (4) are vertically arranged on the base (2), a clamping member (11) located on the base (2) is arranged below the crossbeam (3), the clamping member (11) comprises a lower air cylinder (14) located on the base (2), a lower piston (15) is slidably connected inside the lower air cylinder (14), the lower piston (15) is connected to the bottom of the lower air cylinder (14) by a support spring (16), and the lower piston (15) is connected to the lower pressure rod (13) by a lower pressure rod (13). A lower pressure plate (12) is provided for placing a forged workpiece, and side air cylinders (19) are provided on both sides of the lower pressure plate (12). One end of the side air cylinder (19) away from the lower air cylinder (14) is connected to the lower end of the lower air cylinder (14), and a side piston (20) is slidably connected inside the lower air cylinder (14). Side pressure rods (18) are provided on the sides of the two side pistons (20) that are arranged opposite to each other, and the end of the side pressure rod (18) is connected to a side pressure plate (17). A sliding box (9) is provided above the lower pressure plate (12), and a control component for controlling the sliding box (9) to move up and down and thus perform stamping forging on the forged workpiece is provided on the die frame (1).

2. A hot forging pressure structure according to claim 1, characterized in that: The control assembly comprises a driving member (5) mounted on the mold frame (1), the driving member (5) being transmission-connected to a crankshaft (6) mounted between the two upright posts (4), the driving member (5) being used to control the rotation of the crankshaft (6), the two ends of the crankshaft (6) respectively passing through the two upright posts (4) and being movably connected to the upright posts (4), the middle part of the crankshaft (6) being rotationally connected to a connecting rod (7), the lower end of the connecting rod (7) being rotationally connected to the sliding box (9) via a small shaft (8).

3. A hot forging pressure structure according to claim 2, characterized in that: The sliding box (9) is provided with a mounting hole (91) rotatably connected to the small shaft (8), and both sides of the sliding box (9) are provided with hanging ears (92) for hanging a balancing cylinder. The sliding box (9) is provided with an opening groove (93), and the bottom of the opening groove (93) is connected to the side wall of the opening groove (93) through a first circular arc (94). An oil storage area (95) is provided at a corner of the bottom of the opening groove (93), and the bottom of the opening groove (93) of the oil storage area (95) is connected to the side wall of the opening groove (93) through a second circular arc (96).

4. A hot forging pressure structure according to claim 2, characterized in that: The driving member (5) comprises a control motor connected to the column (4), the control motor is located on one side above the crankshaft (6), the output end of the control motor is connected to a pulley, the lower part of the pulley is connected to a flywheel in a transmission connection, the flywheel is connected to a pinion gear via a transmission shaft, the transmission shaft is located above the crankshaft (6), the pinion gear is located on the other side above the crankshaft (6), the pinion gear is connected to a large gear in a transmission connection, and the large gear is connected to the end of the crankshaft (6) via a clutch.

5. A hot forging pressure structure according to claim 1, characterized in that: A rack (27) is arranged on the side wall of the lower pressure rod (13); a moving member (21) connected to the base (2) is arranged on one side of the rack (27); the moving member (21) is connected to a braking member (22) arranged to cooperate with the rack (27) for braking; the moving member (21) is used to control the braking member (22) to move toward the rack (27) and contact with the rack (27) so as to achieve contact braking of the braking member (22) and the rack (27).

6. A hot forging pressure structure according to claim 5, characterized in that: The moving member (21) comprises a movable telescopic cylinder connected to the base (2), and the telescopic end of the movable telescopic cylinder is connected to the braking member (22).

7. A hot forging pressure structure according to claim 5 or 6, characterized in that: The brake component (22) comprises a mounting plate (23), a rotating shaft (24) is rotatably arranged on the mounting plate (23), a ratchet (25) is coaxially connected to the rotating shaft (24), a plurality of ratchet teeth (26) arranged at equal angles on the outer ring of the ratchet (25) and matched with the rack (27), a braking pawl (28) is arranged on one side of the ratchet (25) and matched with the ratchet teeth (26), the braking pawl (28) is rotatably arranged on the mounting plate (23) via a rotating shaft, a torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively connected to the braking pawl (28).

8. A hot forging pressure structure according to claim 7, characterized in that: The moving part (21) is connected to the mounting plate (23) on the braking part (22), and the moving part (21) is connected to the base (2) via a lower air cylinder (14).

9. A hot forging pressure structure according to claim 1, characterized in that: The upper end surface of the lower pressing plate (12) is provided with a plurality of suction cups for fixing the forged workpiece.

10. A hot forging pressure structure according to claim 9, characterized in that: An air suction pipe connected to the suction cup is arranged inside the lower pressure plate (12), and the air suction pipe is connected to an air suction valve.

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