CN211386745U

CN211386745U - Electric screw press

Info

Publication number: CN211386745U
Application number: CN201922253228.2U
Authority: CN
Inventors: 张琪; 王德荣
Original assignee: Zibo Chengtuo Machinery Co ltd
Current assignee: Zibo Chengtuo Machinery Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-09-01
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses an electronic screw press belongs to the press field. An electric screw press comprises a frame, wherein a driving motor is fixedly connected to the frame, the driving end of the driving motor is connected with a small belt pulley, the frame is rotatably connected with a screw rod, a large belt pulley with a flywheel is fixedly sleeved at the upper end of the screw rod, the small belt pulley is connected with the large belt pulley through a belt, a first brake for braking the large belt pulley is fixedly connected to the frame through a fixed support, and a sliding body is slidably connected to the frame through a guide sleeve; the utility model discloses an aspect has reduced energy consumption, and on the other hand can make stopper braking torque significantly reduce, and it is big to have table surface, strikes the precision height, has saved auxiliary assembly and workman, and the slider still can pause at the bottom dead center, and the dwell time can set up in advance to adapt to the technology that blade thin wall part set up vexed die forging school action will.

Description

Electric screw press

Technical Field

The utility model relates to a press technical field especially relates to an electronic screw press.

Background

The press machine drives the working mechanism through the transmission mechanism by the motor to apply technical force to the workpiece, and the universal machine with a delicate structure can be widely applied to cutting, punching, blanking, bending, riveting, forming and other processes.

With the continuous development of the technology, the die-casting of precise parts is more and more, so that higher requirements are provided for the overall performance of the press, in addition, when the press is used for die-casting some thin parts, the closed die forging is required to correct the action during the extrusion striking, and the press is required to pause for a period of time after the extrusion striking, so that the screw press can pause at the bottom dead center, and is large in working table surface, high in striking precision, simple and easy to maintain, and good in overall performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the prior art and providing an electronic screw press.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electric screw press comprises a frame, wherein a driving motor is fixedly connected to the frame, a small belt pulley is connected to the driving end of the driving motor, a screw rod is rotatably connected to the frame, a large belt pulley with a flywheel is fixedly sleeved at the upper end of the screw rod, the small belt pulley and the large belt pulley are connected through a belt, a first brake for braking the large belt pulley is fixedly connected to the frame through a fixing support, a sliding body is slidably connected to the frame through a guide sleeve, a copper nut matched with the screw rod is fixedly connected to the inside of the sliding body, an upper die is arranged at the lower end of the sliding body, sliding blocks are fixedly connected to two ends of the sliding body, the sliding blocks are slidably connected to the frame, a sliding rod is fixedly connected to the sliding blocks, a lower die matched with the upper die is connected to the frame, and a buffer spring is connected, the bottom side of the lower die is connected with an orientation rod, the lower end of the sliding rod is fixedly connected with an orientation frame, the orientation frame is connected with a second brake used for braking the orientation rod, and a through hole matched with the orientation rod is formed in the orientation frame.

Preferably, the frame comprises a cross beam, a stand column and a base, and the cross beam, the stand column and the base are hydraulically pre-tightened through four tensioning bolts to form a closed frame structure.

Preferably, the upper end of the frame is fixedly connected with a maintenance frame, and the maintenance frame is fixedly connected to the cross beam.

Preferably, the maintenance frame is connected with a climbing ladder.

Preferably, the frame is rotatably connected with the screw rod through a rolling bearing and a thrust bearing.

Compared with the prior art, the utility model provides an electric screw press possesses following beneficial effect:

1. the electric screw press drives the big belt pulley and the flywheel thereof to rotate by the driving motor through the small belt pulley and the belt, the small belt pulley on the driving motor drives the big belt pulley to rotate in the positive and negative directions, so that the rotation of the screw rod is changed into the up-and-down motion of the sliding body through the copper nut fixed in the sliding body, when the big belt pulley accelerates to the preset energy, the upper die fixed on the sliding body pressurizes and forms a forging blank, then the driving motor reverses to drive the sliding body to return, after the return reaches a certain distance, the driving motor is powered off, the energy stored by the flywheel drives the sliding body to go up continuously, the sliding block returns to the upper limit position, the first brake brakes and the flywheel to brake the flywheel to stop the sliding block, and the driving motor only works when the forging and the return, no idle loss exists, the output energy is mainly used for accelerating the friction loss of the big belt pulley, the flywheel and the host, the first brake works when the flywheel is about to stop, so that the braking energy is very small, the energy consumption is reduced, the braking torque of the brake can be greatly reduced, the working table is large, the striking precision is high, auxiliary equipment and workers are saved, the driving motor can automatically run according to preset striking energy in each step, after striking, the second brake on the directional frame at the lower end of the sliding rod is used for braking the directional rod, the positions of the upper die and the lower die are kept unchanged, the sliding block can pause at the lower dead point, and the pause time can be preset so as to meet the process requirement of setting the closed die forging correcting action of the thin-wall part of the blade.

Drawings

Fig. 1 is a schematic structural view of an electric screw press according to the present invention;

fig. 2 is a schematic cross-sectional structural view of an electric screw press according to the present invention;

fig. 3 is a schematic side view of an electric screw press according to the present invention;

fig. 4 is a schematic top view of the electric screw press according to the present invention.

In the figure: 1. a frame; 101. a cross beam; 102. a column; 103. a base; 104. tightening the bolts; 2. a maintenance frame; 3. climbing a ladder; 4. a large belt pulley; 5. a screw; 6. a small belt pulley; 7. a belt; 8. a sliding body; 9. a drive motor; 10. a first brake; 11. fixing a bracket; 12. a rolling bearing; 13. a thrust bearing; 14. a copper nut; 15. a slide bar; 16. a slider; 17. an upper die; 18. a lower die; 19. an orientation bar; 20. a second brake; 21. a through hole; 22. and (5) orienting a frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, an electric screw press comprises a frame 1, a driving motor 9 is fixedly connected to the frame 1, a small belt pulley 6 is connected to a driving end of the driving motor 9, a screw rod 5 is rotatably connected to the frame 1, a large belt pulley 4 with a flywheel is fixedly connected to an upper end of the screw rod 5, the small belt pulley 6 is connected to the large belt pulley 4 through a belt 7, a first brake 10 for braking the large belt pulley 4 is fixedly connected to the frame 1 through a fixing bracket 11, a sliding body 8 is slidably connected to the frame 1 through a guide sleeve, a copper nut 14 matched with the screw rod 5 is fixedly connected to the inside of the sliding body 8, an upper die 17 is arranged at a lower end of the sliding body 8, sliding blocks 16 are fixedly connected to two ends of the sliding body 8, the sliding blocks 16 are slidably connected to the frame 1, a sliding rod 15 is fixedly connected to the sliding block 16, a lower die 18 matched with, the bottom side of the lower die 18 is connected with an orientation rod 19, the lower end of the sliding rod 15 is fixedly connected with an orientation frame 22, the orientation frame 22 is connected with a second brake 20 for braking the orientation rod 19, and the orientation frame 22 is provided with a through hole 21 matched with the orientation rod 19;

the driving motor 9 drives the large belt pulley 4 and the flywheel thereof to rotate by virtue of the small belt pulley 6 and the belt 7, the small belt pulley 6 on the driving motor 9 drives the large belt pulley 4 to rotate in the forward and reverse directions, so that the rotating motion of the screw 5 is changed into the up-and-down motion of the sliding body 8 by virtue of the copper nut 14 fixed in the sliding body 8, when the large belt pulley 4 accelerates to a preset energy, the upper die fixed on the sliding body 8 presses and forms a forging blank, the driving motor 9 rotates reversely to drive the sliding body 8 to return, after the return stroke reaches a certain distance, the driving motor 9 is powered off, the energy stored by the flywheel drives the sliding body 8 to move upwards continuously, the sliding block returns to an upper limit position, the first brake 10 brakes the flywheel to stop the sliding block, and the driving motor 9 works only when the forging and the return stroke are pressed, no idle running loss exists, and the output energy is mainly used for accelerating the friction loss of the large belt pulley 4, therefore, the energy consumption is low, the efficiency is high, in addition, the first brake 10 brake works when the flywheel is about to stop, the braking energy is very small, on one hand, the energy consumption is reduced, on the other hand, the braking torque of the brake can be greatly reduced, the working table is large, the striking precision is high, auxiliary equipment and workers are saved, the driving motor 9 can automatically run according to the striking energy of each preset step, after striking, the position of the upper die 17 and the lower die 18 is kept unchanged by using the second brake 20 on the directional frame 22 at the lower end of the sliding rod 15 to brake the directional rod 19, the sliding block can also pause at the lower dead point, and the pause time can be preset to meet the process requirement of setting the die forging stuffy correction action of the thin-wall.

The frame 1 comprises a cross beam 101, a vertical column 102 and a base 103, wherein the cross beam 101, the vertical column 102 and the base 103 are hydraulically pre-tightened through four tensioning bolts 104 to form a closed frame structure, and the whole structure is stable.

Frame 1 upper end fixedly connected with maintenance frame 2, maintenance frame 2 fixed connection is convenient for maintain on crossbeam 101.

The maintenance frame 2 is connected with a climbing ladder 3, which is convenient for climbing maintenance.

The frame 1 is rotatably connected with the screw rod 5 through a rolling bearing 12 and a thrust bearing 13, so that the frame 1 is stably and rotatably connected with the screw rod 5.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an electric screw press, which is characterized in that, includes frame (1), fixedly connected with driving motor (9) on frame (1), driving motor (9) drive end is connected with belt lace wheel (6), it is connected with screw rod (5) to rotate on frame (1), the fixed big belt pulley (4) that have the flywheel that cup joints in screw rod (5) upper end, belt lace wheel (6) and big belt pulley (4) link to each other through belt (7), be used for the braking through fixed bolster (11) fixedly connected with on frame (1) first stopper (10) of big belt pulley (4), there is slider (8) on frame (1) through uide bushing sliding connection, fixedly connected with in slider (8) with screw rod (5) copper nut (14) that match, slider (8) lower extreme is equipped with mould (17), the improved brake device is characterized in that sliding blocks (16) are fixedly connected to two ends of the sliding body (8), the sliding blocks (16) are connected to the frame (1) in a sliding mode, sliding rods (15) are fixedly connected to the sliding blocks (16), lower dies (18) matched with the upper dies (17) are connected to the frame (1), buffer springs are connected between the bottom sides of the lower dies (18) and the frame (1), directional rods (19) are connected to the bottom sides of the lower dies (18), directional frames (22) are fixedly connected to the lower ends of the sliding rods (15), second brakes (20) used for braking the directional rods (19) are connected to the directional frames (22), and through holes (21) matched with the directional rods (19) are formed in the directional frames (22).

2. An electric screw press according to claim 1, characterised in that the frame (1) comprises a cross beam (101), a vertical column (102) and a base (103), and that the cross beam (101), the vertical column (102) and the base (103) are hydraulically pre-tensioned by means of four tensioning bolts (104) to form a closed frame structure.

3. An electric screw press according to claim 2, characterised in that a maintenance frame (2) is fixedly connected to the upper end of the frame (1), said maintenance frame (2) being fixedly connected to the cross beam (101).

4. An electric screw press according to claim 3, characterised in that a climbing ladder (3) is connected to the maintenance frame (2).

5. An electric screw press according to claim 1, characterised in that the frame (1) is rotatably connected to the screw (5) by means of a rolling bearing (12) and a thrust bearing (13).