Large-tonnage powder forming electro-hydraulic servo press

Abstract

The utility model discloses a large-tonnage powder forming electro-hydraulic servo press which comprises a base and supporting columns, four sets of supporting columns are installed at the top end of the base, a top seat is installed at the top ends of the supporting columns, a hydraulic cylinder is arranged in the top seat, a lower pressing seat is installed at the output end of the hydraulic cylinder, and the lower pressing seat is connected with the hydraulic cylinder. A lower die is installed at the center of the top end of the base, two sets of electric push rods are installed on the outer wall of the base, push arms are installed at the output ends of the electric push rods, racks are installed at the ends, away from the electric push rods, of the push arms, and the racks are connected with the upper die and the lower die. And four groups of L-shaped frames are arranged in the lower die at equal intervals. According to the automatic feeding device, convenient and fast automatic feeding is achieved, a user is protected during working, extrusion-formed materials can be conveniently ejected out, clamped and discharged, and the use flexibility of the press machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of presses, in particular to a large-tonnage powder forming electro-hydraulic servo press. Background Art

[0002] A powder forming press is a device used to produce powder metallurgy parts. The working principle of the powder forming press is to transmit pressure to the press body through a hydraulic system. The press body presses the powder particles filled by the powder filling device into a dense, high-strength green billet through a mold. The pressure sensor monitors the pressure changes in real time to ensure that the size and density of the green billet meet the requirements. This equipment has the characteristics of high pressure, high precision and high efficiency. It can produce dense, high-strength green billets with uniform size and density. Traditional presses require manual loading and unloading, and have low working efficiency. In order to improve this situation, a large-tonnage powder forming electro-hydraulic servo press is proposed.

[0003] For example, a fully automatic powder molding press disclosed in the authorization announcement number CN210702549U includes a fixed bracket, a feeding barrel body connected to the fixed bracket by a reinforcing support leg, a first feeding barrel arranged at one end of the feeding barrel body, a second feeding barrel arranged at the other end of the feeding barrel body, a discharge pipe evenly arranged at the lower end of the feeding barrel body, a stirring shaft arranged in the feeding barrel body, and a driving assembly for driving the stirring shaft, wherein the first feeding barrel is used to convey metal powder material, and the second feeding barrel is used to convey molding additives;

[0004] Although it facilitates the metering and delivery of the molding additives, thereby effectively improving the accuracy of adding the metal powder material and the molding additives, it is convenient to drive the stirring shaft through the driving component, so that the metal powder material and the molding additives are fully stirred by the stirring shaft, thereby effectively ensuring the quality of metal powder molding;

[0005] However, the problem that the existing press is not conducive to convenient automatic feeding and protection of users during operation, and is not conducive to ejecting and clamping and discharging extruded materials, which affects the flexibility of the press. Utility Model Content

[0006] The purpose of the utility model is to provide a large-tonnage powder molding electro-hydraulic servo press to solve the problems raised in the above background technology that the press is not convenient for automatic feeding and protection of users during operation, is not conducive to ejecting and clamping and discharging extruded materials, and affects the flexibility of the press.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-tonnage powder forming electro-hydraulic servo press, comprising a base and a support column, four groups of support columns are installed at the top of the base, a top seat is installed at the top of the support column, a hydraulic cylinder is arranged inside the top seat, a lower press seat is installed at the output end of the hydraulic cylinder, and the lower press seat is slidably connected to the support column, an upper mold is installed at the bottom end of the lower press seat, and a lower mold is installed at the center position of the top of the base, two groups of electric push rods are installed on the outer wall of the base, push arms are installed at the output ends of the electric push rods, and racks are installed at the ends of the push arms away from the electric push rods, four groups of L-shaped frames with equal intervals are arranged inside the lower mold, movable rods are movably installed at the tops of the L-shaped frames, gears are installed on the surfaces of the movable rods, and the gears and racks are meshed with each other, lifting sleeves are slidably sleeved on the surfaces of the movable rods, and the lifting sleeves are slidably connected to the L-shaped frames, and threaded sleeves are installed at the bottom ends of the lifting sleeves, and the lifting sleeves are threadedly connected to the movable rods through the threaded sleeves.

[0008] Preferably, a transverse screw mechanism is installed on the side wall of the base, and an adjustment box is installed on the output end of the transverse screw mechanism.

[0009] Preferably, a worm is movably installed inside the adjustment box, a servo motor is installed on the side wall of the adjustment box, and the output end of the servo motor is connected to the worm.

[0010] Preferably, a movable shaft is movably installed inside the adjustment box on one side of the worm, and an adjustment arm is installed on the top end of the movable shaft.

[0011] Preferably, a worm gear is mounted on the surface of the movable shaft, and the worm and the worm gear are meshed with each other.

[0012] Preferably, a material barrel is installed at one end of the adjusting arm, and an electric clamp is installed at the other end of the adjusting arm.

[0013] Preferably, two groups of cylinders are symmetrically mounted on the side walls of the lower pressure seat, and movable rods are mounted on the output ends of the cylinders.

[0014] Preferably, a protective cover is provided below the lower pressing seat, and the protective cover is movably connected to the moving rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the press not only realizes convenient automatic feeding and protects the user during operation, facilitates the ejection and clamping discharge of the extruded material, but also improves the flexibility of the press;

[0016] (1) Powder material is added to the interior of the barrel, and the barrel is moved to the die hole position of the lower die by the transverse screw mechanism. The solenoid valve at the bottom of the barrel is opened, and the powder material flows into the die hole through the barrel. After the addition is completed, the transverse screw mechanism is opened in the opposite direction, and the barrel is reset by the transverse screw mechanism. Then the hydraulic cylinder is opened, and the hydraulic cylinder drives the lower press seat and the upper die to move downward. When the upper die contacts the powder material, the cylinder drives the protective cover downward through the moving rod, so that the protective cover contacts the base and covers the outer periphery of the lower die. The protective cover protects it to prevent the material from bursting out and injuring people during extrusion. Under the continuous downward pressure of the hydraulic cylinder, the powder material is extruded into a cylindrical solid. Then the hydraulic cylinder drives the upper die to reset, and the electric push rod drives the rack to move through the push arm. The rack drives the movable rod to rotate on the surface of the L-shaped frame through the gear. The movable rod drives the lifting sleeve to move upward, and the L-shaped frame provides sliding limit support for the lifting sleeve. The cylindrical solid is ejected by multiple groups of lifting sleeves;

[0017] (2) The servo motor drives the worm gear to rotate through the worm, and the worm gear drives the adjustment arm to rotate through the movable shaft, and the adjustment arm drives the electric clamp to rotate to rotate the electric clamp to the direction of the lower mold. Then, the transverse screw mechanism is operated again, and the transverse screw mechanism drives the electric clamp to move to the position of the cylindrical material. After the electric clamp clamps it, the transverse screw mechanism is operated in the reverse direction, and the transverse screw mechanism drives it to reset, thereby discharging the material, thereby completing the use of the large-tonnage powder molding electro-hydraulic servo press. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional perspective structure of the lower mold of the utility model;

[0021] Figure 4 This is a three-dimensional perspective structural diagram of the jacking sleeve of the utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the protective cover of the present invention.

[0023] In the figure: 1. Base; 2. Support column; 3. Top seat; 4. Lower pressure seat; 5. Cylinder; 6. Material barrel; 7. Protective cover; 8. Lower mold; 9. Electric clamp; 10. Horizontal screw mechanism; 11. Electric push rod; 12. Hydraulic cylinder; 13. Upper mold; 14. Servo motor; 15. Adjustment arm; 16. Worm; 17. Adjustment box; 18. Worm gear; 19. Movable shaft; 20. Push arm; 21. Rack; 22. Gear; 23. L-shaped frame; 24. Movable rod; 25. Lifting sleeve; 26. Moving rod. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5 The utility model provides an embodiment: a large-tonnage powder molding electro-hydraulic servo press, including a base 1 and a support column 2, four groups of support columns 2 are installed on the top of the base 1, a top seat 3 is installed on the top of the support column 2, a hydraulic cylinder 12 is provided inside the top seat 3, the hydraulic cylinder 12 plays a role of power drive, the output end of the hydraulic cylinder 12 is installed with a lower press seat 4, and the lower press seat 4 is slidably connected to the support column 2, the bottom end of the lower press seat 4 is installed with an upper mold 13, a lower mold 8 is installed at the center position of the top of the base 1, and two groups of electric push rods 11 are installed on the outer wall of the base 1, and the electric push rods 11 play a role of power drive The output ends of the electric push rods 11 are all equipped with push arms 20, and the ends of the push arms 20 away from the electric push rods 11 are all equipped with racks 21. Four groups of L-shaped frames 23 with equal spacing are provided inside the lower mold 8. The tops of the L-shaped frames 23 are all movably equipped with movable rods 24. The surfaces of the movable rods 24 are all equipped with gears 22, and the gears 22 and the racks 21 are engaged with each other. The surfaces of the movable rods 24 are all slidably covered with lifting sleeves 25, and the lifting sleeves 25 are slidably connected to the L-shaped frames 23. The bottom ends of the lifting sleeves 25 are all equipped with threaded sleeves, and the lifting sleeves 25 are threadedly connected to the movable rods 24 through the threaded sleeves.

[0026] Add the powder material into the barrel 6, open the transverse screw mechanism 10, and the transverse screw mechanism 10 drives the barrel 6 to move to the die hole position of the lower die 8, open the solenoid valve at the bottom of the barrel 6, and the powder material flows into the die hole through the barrel 6. After the feeding is completed, open the transverse screw mechanism 10 in the reverse direction, and the transverse screw mechanism 10 drives the barrel 6 to reset, and then open the hydraulic cylinder 12, and the hydraulic cylinder 12 drives the lower pressure seat 4 and the upper die 13 to move downward. When the upper die 13 contacts the powder material, open the cylinder 5, and the cylinder 5 drives the protective cover 7 to move downward through the moving rod 26, so that the protective cover 7 contacts the base 1 and covers the outer periphery of the lower die 8. 7 is used to protect it and prevent the material from bursting and injuring people during extrusion. Under the continuous downward pressure of the hydraulic cylinder 12, the powder material is extruded into a cylindrical solid. Then the hydraulic cylinder 12 drives the upper mold 13 to reset, and the electric push rod 11 is opened. The electric push rod 11 drives the rack 21 to move through the push arm 20, and the rack 21 drives the movable rod 24 to rotate on the surface of the L-shaped frame 23 through the gear 22. Under the threaded connection between the movable rod 24 and the threaded sleeve inside the jacking sleeve 25, the movable rod 24 drives the jacking sleeve 25 to move upward, and the L-shaped frame 23 provides sliding limit support for the jacking sleeve 25. The cylindrical solid is ejected by multiple groups of jacking sleeves 25;

[0027] A transverse screw mechanism 10 is mounted on the side wall of the base 1. The transverse screw mechanism 10 plays a role of power drive. An adjustment box 17 is mounted on the output end of the transverse screw mechanism 10.

[0028] A worm 16 is movably installed inside the adjustment box 17, and a servo motor 14 is installed on the side wall of the adjustment box 17. The servo motor 14 plays a role of power drive, and the output end of the servo motor 14 is connected to the worm 16;

[0029] A movable shaft 19 is movably mounted inside the adjustment box 17 on one side of the worm 16. An adjustment arm 15 is mounted on the top of the movable shaft 19. A worm wheel 18 is mounted on the surface of the movable shaft 19. The worm 16 and the worm wheel 18 are meshed with each other.

[0030] A material barrel 6 is mounted on one end of the adjusting arm 15, and an electric clamp 9 is mounted on the other end of the adjusting arm 15. Two sets of cylinders 5 are symmetrically mounted on the side wall of the lower pressing seat 4. The cylinders 5 play the role of power drive, and the output ends of the cylinders 5 are both mounted with moving rods 26.

[0031] A protective cover 7 is provided below the lower pressing seat 4, and the protective cover 7 is movably connected to the moving rod 26;

[0032] Turn on the servo motor 14, and the servo motor 14 drives the worm gear 18 to rotate through the worm 16, and the worm gear 18 drives the adjusting arm 15 to rotate through the movable shaft 19, and the adjusting arm 15 drives the electric clamp 9 to rotate to rotate the electric clamp 9 to the direction of the lower mold 8, and then operate the transverse screw mechanism 10 again, and the transverse screw mechanism 10 drives the electric clamp 9 to move to the position of the cylindrical material. After the electric clamp 9 clamps and fixes it, the transverse screw mechanism 10 is operated in the reverse direction, and the transverse screw mechanism 10 drives it to reset, so as to discharge the material, thereby completing the use of the large-tonnage powder forming electro-hydraulic servo press.

[0033] Working principle: Powder material is added to the interior of the barrel 6, and the barrel 6 is moved to the die hole position of the lower die 8 by the transverse screw mechanism 10, and the solenoid valve at the bottom of the barrel 6 is opened, and the powder material flows into the die hole through the barrel 6. After the feeding is completed, the transverse screw mechanism 10 is opened in the reverse direction, and the barrel 6 is reset by the transverse screw mechanism 10, and the lower press seat 4 and the upper die 13 are driven downward by the hydraulic cylinder 12. When the upper die 13 contacts the powder material, the cylinder 5 drives the protective cover 7 to move downward through the moving rod 26, so that the protective cover 7 contacts the base 1 and covers the outer periphery of the lower die 8, and is protected by the protective cover 7 to prevent the material from bursting out and injuring people during extrusion. The powder material is extruded into a cylindrical solid, and then the hydraulic cylinder 12 drives the upper die 13 to reset, and the electric push rod 11 drives the rack 21 to move through the push arm 20, and the rack 21 drives the movable rod 24 through the gear 22 on the L-shaped frame 2 3, the surface of the movable rod 24 is connected with the threaded sleeve inside the jacking sleeve 25, and the movable rod 24 drives the jacking sleeve 25 to move upward, and the L-shaped frame 23 provides sliding limit support for the jacking sleeve 25. The cylindrical solid is ejected by multiple groups of jacking sleeves 25, and the servo motor 14 drives the worm gear 18 to rotate through the worm 16, and the worm gear 18 drives the adjusting arm 15 to rotate through the movable shaft 19, and the adjusting arm 15 drives the electric clamping jaw 9 to rotate to rotate the electric clamping jaw 9 to the direction of the lower mold 8. Then, the transverse screw mechanism 10 is operated again, and the transverse screw mechanism 10 drives the electric clamping jaw 9 to move to the position of the cylindrical material. After the electric clamping jaw 9 clamps it and fixes it, the transverse screw mechanism 10 is operated in the reverse direction, and the transverse screw mechanism 10 drives it to reset, thereby discharging the material, thereby completing the use of the large-tonnage powder forming electro-hydraulic servo press.

Claims

1. A large-tonnage powder forming electro-hydraulic servo press, comprising a base (1) and a support column (2), characterized in that: Four groups of support columns (2) are installed at the top of the base (1), a top seat (3) is installed at the top of the support column (2), a hydraulic cylinder (12) is provided inside the top seat (3), a lower pressure seat (4) is installed at the output end of the hydraulic cylinder (12), and the lower pressure seat (4) is slidably connected to the support column (2), an upper mold (13) is installed at the bottom end of the lower pressure seat (4), a lower mold (8) is installed at the center position of the top of the base (1), two groups of electric push rods (11) are installed on the outer wall of the base (1), and push arms (20) are installed at the output ends of the electric push rods (11), and the push arms (20) are away from the electric push rods. One end of the push rod (11) is equipped with a rack (21), and the interior of the lower mold (8) is provided with four groups of L-shaped frames (23) with equal spacing. The top of the L-shaped frame (23) is movably equipped with a movable rod (24), and the surface of the movable rod (24) is equipped with a gear (22), and the gear (22) and the rack (21) are engaged with each other. The surface of the movable rod (24) is slidably covered with a lifting sleeve (25), and the lifting sleeve (25) is slidably connected to the L-shaped frame (23), and the bottom end of the lifting sleeve (25) is equipped with a threaded sleeve, and the lifting sleeve (25) is threadedly connected to the movable rod (24) through the threaded sleeve.

2. The large-tonnage powder forming electro-hydraulic servo press according to claim 1, characterized in that: A transverse screw mechanism (10) is installed on the side wall of the base (1), and an adjustment box (17) is installed at the output end of the transverse screw mechanism (10).

3. The large-tonnage powder forming electro-hydraulic servo press according to claim 2, characterized in that: A worm (16) is movably installed inside the adjustment box (17), a servo motor (14) is installed on the side wall of the adjustment box (17), and the output end of the servo motor (14) is connected to the worm (16).

4. The large-tonnage powder forming electro-hydraulic servo press according to claim 3, characterized in that: A movable shaft (19) is movably installed inside the adjustment box (17) on one side of the worm (16), and an adjustment arm (15) is installed on the top end of the movable shaft (19).

5. The large-tonnage powder forming electro-hydraulic servo press according to claim 4, characterized in that: A worm wheel (18) is mounted on the surface of the movable shaft (19), and the worm (16) and the worm wheel (18) are meshed with each other.

6. The large-tonnage powder forming electro-hydraulic servo press according to claim 4, characterized in that: A material barrel (6) is mounted on one end of the adjusting arm (15), and an electric clamping claw (9) is mounted on the other end of the adjusting arm (15).

7. The large-tonnage powder forming electro-hydraulic servo press according to claim 1, characterized in that: Two groups of cylinders (5) are symmetrically mounted on the side walls of the lower pressing seat (4), and the output ends of the cylinders (5) are both mounted with moving rods (26).

8. The large-tonnage powder forming electro-hydraulic servo press according to claim 1, characterized in that: A protective cover (7) is provided below the lower pressing seat (4), and the protective cover (7) is movably connected to the moving rod (26).

Images