CN207668228U - A kind of servo numerical control bending machine - Google Patents

Abstract

The utility model discloses a kind of servo numerical control bending machines, including workbench, rack, digital control system, positioning device, it is provided with lower die on the upside of the workbench, it is provided with the rack on the outside of the workbench, it is provided with the positioning device on rear side of the lower die, it is provided with upper mold on the upside of the lower die, it is provided with driving device on the upside of the upper mold, the driving device includes sliding block, it is provided with movable pulley on the sliding block, it is provided with fixed pulley in the rack on the downside of the movable pulley, positive servo motor is provided in the rack, it is provided with anti-servo motor on the outside of the positive servo motor, it is provided with transmission belt between the fixed pulley and the movable pulley, the shell outside is provided with the digital control system.The beneficial effects of the utility model are：Process when bending is with backhaul by Serve Motor Control, and more precisely, more durable, bending is more efficient.

Description

A Servo CNC Bending Machine

technical field

The utility model relates to the field of bending machine equipment design, in particular to a servo numerical control bending machine.

Background technique

The driving device of the traditional bending machine, when driving the upper die to feed downward, drives the upper die through the hydraulic cylinder. Although the pressure of the hydraulic drive is high, it consumes more power, and because the hydraulic column is usually set on The left and right sides of the mold cause the pressure on the left and right sides to be unbalanced with the pressure at the center, which ultimately affects the straightness of the workpiece. The later improved model uses a servo motor and a set of movable pulleys and fixed pulleys, and the fixed pulleys are fixed on the frame. , the movable pulley is fixed on the frame, through a transmission belt, the servo motor rotates, the transmission belt drives the movable pulley to move down, the movable pulley drives the slider to move down, and after the bending is completed, the return spring pushes the slider back to the original position to complete the reset. The motors are all controlled by the numerical control system. Due to the action of multiple sets of pulleys, the pressure is even. However, the disadvantage of this kind of bending machine is that the reset is realized by the return spring. The spring force of the spring will be affected after long-term use, which will affect the sliding. The return of the block, and the spring return speed is not controlled.

Utility model content

The purpose of this utility model is to provide a servo numerical control bending machine in order to solve the above problems.

The utility model realizes above-mentioned purpose through following technical scheme:

A servo numerical control bending machine, comprising a workbench, a frame, a numerical control system, and a positioning device. A lower mold is arranged on the upper side of the workbench, the frame is arranged on the outer side of the workbench, and the rear side of the lower mold is The positioning device is provided, an upper mold is provided on the upper side of the lower mold, and a driving device is provided on the upper side of the upper mold, and the driving device includes a slider, and a movable pulley is arranged on the slider, and the movable pulley lower The frame on the side is provided with a fixed pulley, the frame is provided with a positive servo motor, the outside of the positive servo motor is provided with a reverse servo motor, and a transmission belt is provided between the fixed pulley and the movable pulley. The numerical control system is provided on the outside of the frame, the positioning device includes a first screw rod, a first servo motor is provided on the lower side of the first screw rod, and a second servo motor is provided on the upper side of the first screw rod , the right side of the second servo motor is provided with a second screw rod, the front side of the second screw rod is provided with a positioning block, and the two sides of the frame are provided with grating scales.

In the above structure, the workpiece is placed on the lower mold, the positioning device is controlled to adjust the positioning through the numerical control system, the first servo motor controls the positioning block to move in the horizontal direction, and the second servo motor controls The positioning block moves in the vertical direction to limit the amount of feed, and then the numerical control system controls the positive servo motor to work. When the positive servo motor is working, the output shaft of the reverse servo motor is fixed, that is, The positive servo motor rotates forward to recover the transmission belt, and the movable pulley drives the slider to drive the upper die to move downward for bending. After the bending is completed, the pulley block on the other side works, because the pulley block on this side is the The movable pulley is on the bottom, and the fixed pulley is on the top, so when the reverse servo motor is started, the movable pulley drives the slider to drive the upper mold to move upward, and the driving device passes through the pulley blocks on both sides and the upper mold. The forward servo motor and the reverse servo motor cooperate to complete the bending, and the cooperative work is controlled by the numerical control system.

In order to further improve the bending efficiency, the movable pulley and the fixed pulley are vertically aligned, and there are four groups of the movable pulley and the fixed pulley, which are distributed on both sides of the slider, and The positions of the movable pulleys and the fixed pulleys on both sides are opposite, and each group is provided with a plurality of the movable pulleys and a plurality of the fixed pulleys, and each group is provided with a positive servo motor, a reverse servo motor and a The transmission belt starts from the positive servo motor, goes around all the fixed pulleys and the movable pulleys in the group, and ends at the reverse servo motor.

In order to further improve the bending efficiency, the movable pulley is connected with the slider by screw fastening, the fixed pulley is connected with the frame by screw fastening, and the slider and the upper mold are fastened by screw. Solid phase connection.

In order to further improve the bending efficiency, the upper die is connected to the worktable by screws, the positioning device is connected to the worktable by screws, and the positioning device is connected to the frame by screws. Tightly connected.

In order to further improve the bending efficiency, the first servo motor is in transmission connection with the first screw mandrel, the second servo motor is in transmission connection with the first screw mandrel, and the second servo motor is in transmission connection with the second screw mandrel. The screw rod is connected by transmission, and the positioning block is connected with the second screw rod through screw fastening.

In order to further improve the bending efficiency, the driving device is connected with the positioning device and the numerical control system through wires.

The beneficial effect of the utility model is that: both the process and the return stroke during bending are controlled by a servo motor, which is more accurate, more durable, and has higher bending efficiency.

Description of drawings

Fig. 1 is the main sectional view of a kind of servo numerical control bending machine described in the utility model;

Fig. 2 is a left sectional view of a servo numerical control bending machine described in the utility model;

Fig. 3 is a front view of a positioning device of a servo numerical control bending machine according to the utility model.

The reference signs are explained as follows:

1. Worktable; 2. Lower mold; 3. Upper mold; 4. Fixed pulley; 5. Moving pulley; 6. Transmission belt; 7. Grating ruler; 8. Reverse servo motor; 9. Positive servo motor; 10. Slider; 11. Numerical control system; 12. Positioning device; 13. Rack; 14. First screw; 15. Second servo motor; 16. Second screw; 17. Positioning block; 18. First servo motor; 19. drive unit.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figures 1-3, a servo numerical control bending machine includes a workbench 1, a frame 13, a numerical control system 11, a positioning device 12, and a lower mold 2 is arranged on the upper side of the workbench 1, and the lower mold 2 is used for To carry the workpiece, a frame 13 is provided on the outside of the workbench 1. The frame 13 is used to arrange the driving device 19 and the positioning device 12. The rear side of the lower mold 2 is provided with a positioning device 12. The positioning device 12 is used for positioning. The upper side of the lower mold 2 An upper mold 3 is provided, and the upper mold 3 is used for bending, and the upper side of the upper mold 3 is provided with a driving device 19, and the driving device 19 is used to drive the upper mold 3, and the driving device 19 includes a slider 10, and the slider 10 is used to drive the upper mold. Die 3, slide block 10 is provided with movable pulley 5, and movable pulley 5 is used to drive slide block 10 to move, and the frame 13 of movable pulley 5 lower side is provided with fixed pulley 4, and fixed pulley 4 is used to drive movable pulley 5 to move, and frame 13 A positive servo motor 9 is arranged on the top, and the positive servo motor 9 is used for the up and down movement of the slider 10. A reverse servo motor 8 is arranged on the outside of the positive servo motor 9, and a transmission belt 6 is arranged between the fixed pulley 4 and the movable pulley 5, and the transmission belt 6 is used for Transmission power, the outside of frame 13 is provided with numerical control system 11, and numerical control system 11 is used for controlling all motors to work together, and positioning device 12 comprises first screw mandrel 14, and first screw mandrel 14 is used for adjusting the horizontal position of positioning block 17, the first The lower side of the threaded mandrel 14 is provided with a first servo motor 18, the first servo motor 18 is used to drive the first threaded mandrel 14, the upper side of the first threaded mandrel 14 is provided with a second servo motor 15, and the second servo motor 15 is used for Drive the second screw mandrel 16, the second screw mandrel 16 is provided with the second screw mandrel 16 on the right side of the second servo motor 15, the second screw mandrel 16 is used to adjust the vertical position of the positioning block 17, the second screw mandrel 16 front side is provided with the positioning block 17 , The frame 13 is provided with a grating ruler 7 on both sides.

In the above structure, the workpiece is placed on the lower mold 2, and the positioning device 12 is controlled to adjust the positioning through the numerical control system 11. The first servo motor 18 controls the positioning block 17 to move in the horizontal direction, and the second servo motor 15 controls the positioning block 17 to move in the vertical direction. Direction movement can limit the amount of feed, etc., and then the numerical control system 11 controls the positive servo motor 9 to work. When the positive servo motor 9 is working, the output shaft of the reverse servo motor 8 is fixed, that is, the positive servo motor 9 rotates forward to recycle the transmission belt 6, The movable pulley 5 drives the slider 10 to drive the upper mold 3 to move downward for bending. After the bending is completed, the pulley block on the other side works, because the pulley block on this side is the movable pulley 5 on the bottom and the fixed pulley 4 on the top, so when the reverse servo motor 8 starts When the movable pulley 5 drives the slider 10 to drive the upper mold 3 to move upwards, the driving device 19 completes the bending through the pulley block on both sides and the positive servo motor 9 and the reverse servo motor 8. The cooperative work is controlled by the numerical control system 11.

In order to further improve the bending efficiency, the movable pulley 5 and the fixed pulley 4 are vertically aligned, and there are four groups of the movable pulley 5 and the fixed pulley 4, which are distributed on both sides of the slider 10, and the movable pulley 5 and the The positions of the fixed pulleys 4 are opposite. Each group is provided with several movable pulleys 5 and several fixed pulleys 4. Each group is provided with a positive servo motor 9, a reverse servo motor 8 and a transmission belt 6. The transmission belt 6 starts from the positive servo motor 9. , bypassing all the fixed pulleys 4 and movable pulleys 5 of this group, until the anti-servo motor 8, the movable pulley 5 is connected with the slider 10 by screw fastening, the fixed pulley 4 is connected with the frame 13 by screw fastening, and the slider 10 It is connected with the upper mold 3 by screw fastening, the upper mold 3 is connected with the worktable 1 by screw fastening, the positioning device 12 is connected with the worktable 1 by screw fastening, and the positioning device 12 is fastened with the frame 13 by screw fastening The first servo motor 18 is connected to the first screw mandrel 14, the second servo motor 15 is connected to the first screw mandrel 14, the second servo motor 15 is connected to the second screw mandrel 16, and the positioning block 17 is connected to the first screw mandrel 14. The two screw rods 16 are connected by screw fastening, and the driving device 19 and the positioning device 12 are connected with the numerical control system 11 by wires.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their effects.

Claims (6)

1. A kind of servo numerical control bending machine, it is characterized in that: comprise workbench, frame, numerical control system, positioning device, described workbench upper side is provided with lower mold, described workbench outside is provided with described frame, The positioning device is arranged on the rear side of the lower mold, the upper mold is arranged on the upper side of the lower mold, and the driving device is arranged on the upper side of the upper mold, and the driving device includes a slider, and the slider is provided with A movable pulley, the frame on the lower side of the movable pulley is provided with a fixed pulley, the frame is provided with a positive servo motor, and the outer side of the positive servo motor is provided with a reverse servo motor, the fixed pulley and the movable pulley A transmission belt is arranged between them, the numerical control system is arranged on the outside of the frame, the positioning device includes a first screw rod, a first servo motor is arranged on the lower side of the first screw rod, and the upper side of the first screw rod A second servo motor is provided, a second screw rod is provided on the right side of the second servo motor, a positioning block is provided on the front side of the second screw rod, and grating rulers are provided on both sides of the frame. 2. A servo numerical control bending machine according to claim 1, characterized in that: the movable pulley and the fixed pulley are aligned in the vertical direction, and both the movable pulley and the fixed pulley are provided with Four groups, two pairs are distributed on both sides of the slider, and the positions of the movable pulleys and the fixed pulleys on both sides are opposite. Each group is provided with several movable pulleys and several fixed pulleys, and each group is provided with a Said positive servo motor, one said anti-servo motor and one said transmission belt, said transmission belt starts from said positive servo motor, bypasses all said fixed pulleys and said movable pulleys of the group, and ends at said anti-servo motor . 3. A servo numerical control bending machine according to claim 1, characterized in that: the movable pulley is connected to the slider by screws, and the fixed pulley is connected to the frame by screws. connected, the slide block is connected with the upper mold through screw fastening. 4. A servo numerical control bending machine according to claim 1, characterized in that: the upper die is connected to the workbench by screw fastening, and the positioning device is fastened to the workbench by screw connected, and the positioning device is connected to the frame by screw fastening. 5. A servo numerical control bending machine according to claim 1, characterized in that: the first servo motor is connected to the first screw rod, and the second servo motor is connected to the first screw rod Transmission connection, the second servo motor is in transmission connection with the second screw mandrel, and the positioning block is connected with the second screw mandrel by screw fastening. 6. A servo numerical control bending machine according to claim 1, characterized in that: the driving device, the positioning device and the numerical control system are connected by wires.