CN2673529Y

CN2673529Y - Mechanical electron servo digital controlled bending machine

Info

Publication number: CN2673529Y
Application number: CNU2004200197312U
Authority: CN
Inventors: 唐志豪
Original assignee: Shanghai Punching & Shearing M
Current assignee: Shanghai Machine Tool Factory Co Ltd
Priority date: 2004-01-19
Filing date: 2004-01-19
Publication date: 2005-01-26
Anticipated expiration: 2014-01-19

Abstract

The utility model relates to a mechanical electron servo digital controlled bending machine. The bender of a traditional hydraulic drive mode exists the problem that the straightness is not good. The mechanical electron servo digital controlled bending machine comprises a machine rack, a sliding block arranged on the upper part of the machine rack, an upper mould fixed on the lower side of the sliding block, a rear blocking material arranged on the lower part of the machine rack, and a lower mould arranged on the work table of the lower part of the machine rack. The mechanical electron servo digital controlled bending machine also comprises a sliding block driving system which drives the sliding block to move from top to bottom. The sliding block driving system comprises two groups of pulley systems which are respectively arranged on the left side and the right side of the sliding block. Each group of the pulley systems comprises a plurality of movable belt wheels, and a plurality of static belt wheels. The movable belt wheels are fixed on the sliding block, and the static belt wheels are fixed on the front panel of the machine rack. A transmission belt is wound among a plurality of movable belt wheels and a plurality of static belt wheels. Two servo motors are respectively connected with one group of the two groups of pulley systems. Two retracting springs are arranged on the two sides of the machine rack to provide restoring force for the upward moving of the sliding block. The servo motors in the sliding block driving system are controlled by a servo motor numerical control system.

Description

Mechano-electronic servo digital control bender

Technical field

The utility model is relevant for a kind of bender, especially relevant for a kind of mechano-electronic servo digital control bender.This kind bender is used for sheet metal is carried out Bending Processing.

Background technology

Bender is as machining equipment, and it mainly acts on is that metal blank is bent into various required shapes, is the key equipment of panel beating in the manufacturing.

Fig. 1 shows the structural representation of traditional bender, wherein, and the front view of traditional bender of Figure 1A; Figure 1B is the left view of Figure 1A; Fig. 1 C is the vertical view of Figure 1A.As shown in Figure 1, the integral frame of bender is on a frame 6, and frame 6 tops are a slide block 4, and this slide block 4 can be slided up and down along frame by hydraulic drive system drives.Fluid power system generally comprises the oil cylinder 1 that is connected with slide block 4, is the fuel tank 9 of fuel tank fuel feeding and Oil pump electrical machinery 8 that Oil pump electrical machinery 8 is generally controlled its work by electrohydraulic servo-controlling system 10, thereby slide block 4 can accurately be moved up and down.Below slide block 4, be fixed with patrix 2.

In the bottom of frame 6, be provided with a workbench 5, on workbench 5, be provided with and patrix 2 corresponding counterdies 3, also be provided with a back shelves material 7.Workpiece 12 is positioned on the back shelves material 7, and back shelves material 7 moves forward and backward under the control of machine pattern servo-drive system 11 accurately.

There is following problem in the bender of this fluid pressure type:

(1) though, hydraulically powered driving force is bigger, the oil consumption that this also brings simultaneously and the problem of power consumption;

(2) parts such as Oil pump electrical machinery, oil cylinder are when work, and the noise of generation is bigger, all reaches more than 50 decibels usually, makes the working environment variation;

(3) as shown in fig. 1, oil cylinder generally is distributed in the frame both sides, and therefore, the principal pressure that slide block produces is distributed in the frame both sides, is difficult to overcome the ram bending distortion that load pressure causes, and finally influences by the linearity of bending component; Make the accuracy of workpiece can not get guaranteeing.

The utility model content

In view of the problems referred to above that traditional hydraulic bending machine exists, the purpose of this utility model is to provide that a kind of noise is little, at the bottom of the power consumption, mechano-electronic servo digital control bender that linearity is good.

According to above-mentioned purpose, mechano-electronic servo digital control bender of the present utility model comprises:

Frame, be arranged at upper rack slide block, be fixed in described slide block below patrix, be arranged at the back shelves material of frame lower and be arranged at counterdie on the workbench of frame lower, it is characterized in that,

Also comprise driving the slider driving system that described slide block moves up and down, described slider driving system comprises:

Two groups of pulley systems, be arranged at the left and right sides of described slide block respectively, every group of pulley system comprises: a plurality of movable belt pulleys and a plurality ofly decide belt wheel, described movable belt pulley is fixed on the described slide block, describedly decide on the front panel that belt wheel is fixed in described frame, a driving-belt is set around described a plurality of movable belt pulley and describedly a plurality ofly decides between the belt wheel;

Two servomotors link to each other with one of described two groups of pulley systems respectively;

Two retracting springs are arranged at the both sides of frame, and the restoring force that moves is provided for described slide block;

Servomotor in the described slider driving system is controlled by described servomotor digital control system.

In above-mentioned mechano-electronic servo digital control bender, also comprise the grating chi, be arranged between described slide block and the described frame, be used to detect the amount of movement and the translational speed of described slide block, produce amount of movement and translational speed signal, offer described servomotor digital control system.

At above-mentioned mechano-electronic servo digital control bender, a plurality of movable belt pulleys in the described pulley system and a plurality ofly decide the even compartment of terrain of belt wheel and be provided with.

As mentioned above, in the utility model, replaced traditional fluid power system with pulley system and servomotor.And pulley system and servomotor have easily accurately control, noise is little and low power consumption and other advantages, therefore, has overcome the above-mentioned shortcoming of traditional hydraulic bending machine.

Describe a specific embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Description of drawings

Figure 1A to Fig. 1 C is the structural representation of traditional hydraulic drive type bender;

Fig. 2 A is the structural representation of mechanism of the present utility model electron servo numerical control bender;

Fig. 2 B is the side view of Fig. 2 A;

Fig. 3 A and Fig. 3 B show two kinds of duties of bender of the present utility model respectively.

The specific embodiment

Shown in Fig. 2 A, 2B, the utility model is the improvement of being done on the basis of as shown in Figure 1 bender, one section construction and traditional bender are same or analogous, comprising: frame 16, slide block 14, the patrix 12 that is fixed in slide block 14 belows, back shelves material (not shown among Fig. 2) that are arranged at frame 16 bottoms and workbench 15 and be arranged at counterdie 13 on the workbench 15.For concise and to the point and clear for the purpose of, in the present embodiment, these component no longer are explained in detail.However, the general personnel in present technique field still can understand and realize the structure of these parts.

The utility model is on the drives structure to slide block 14 improvements of traditional bender.Traditional bender drives with hydraulic way, and the utility model has used pulley system and servomotor to drive.

Shown in Fig. 2 A, 2B, the slider driving system that the utility model uses comprises:

Two groups of pulley systems, be arranged at the left and right sides of slide block 14 respectively, every group of pulley system includes a plurality of movable belt pulleys 21 and a plurality ofly decides belt wheel 22, movable belt pulley 21 is fixed on the slide block 14, decide belt wheel 22 and be fixed in the front panel 27 of frame 16 (referring to Fig. 2 B, front panel 27 is parts of frame, is the schematic diagram of having removed front panel in Fig. 2 A, and the purpose of removing front panel is clearly to illustrate the structure of slide block and pulley system.) on.One driving-belt 23 is set around a plurality of movable belt pulleys 21 and a plurality ofly decides between the belt wheel 22;

Two servomotors 24 link to each other with one of two groups of pulley systems respectively.Shown in Fig. 2 A, 2B, specifically, servomotor 24 is connected with driving-belt 23, when servomotor 24 forward rotation, can tighten up driving-belt 23 by scrolling, thereby make driving-belt 23 by deciding belt wheel 22, drive the movable belt pulley 21 that is fixed on the slide block 14 and move down, move down together thereby drive slide block 14.When servomotor 24 backward rotation, can discharge driving-belt 23, thereby make slide block two retracting springs 25 that are arranged at frame 16 both sides provide on move under the effect of restoring force, move up, be returned to original position.Fig. 3 A and Fig. 3 B show two kinds of duties of bender of the present utility model respectively, promptly descend shifting state and raised state.

Servomotor 24 can be controlled by servo affair motor digital control system 20, servomotor 24 is the equipment of a routine, the control mode of its work and control circuit are known for present technique field personnel, and inventive point of the present utility model is not aspect the control of servomotor, therefore, principle and the structure for its control repeats no more.

In aforesaid slide block drives structure, owing to adopted above-mentioned pulley system, overcome the problem that traditional bender principal pressure is distributed in the frame both sides, the pressure that slide block is subjected to is evenly distributed on the slide block by each pulley, has improved the bending linearity.Preferably, can and a plurality ofly decide the even compartment of terrain of belt wheel and be provided with a plurality of movable belt pulleys.

Shown in Fig. 2 A, 2B,, can also set up grating chi 26 for the precision of bender further is provided.The scale of grating chi 26 is fixed on the frame 16, and the slide rule of grating chi 26 is fixed on the slide block 14.When slide block 14 moved, the slide rule of grating chi 26 was with respect to its scale motion.So grating chi 26 can be measured the translational speed and the amount of movement of slide block 14, converts thereof into the signal of telecommunication, send servomotor digital control system 14 to, and this system 14 adjusts the control to servomotor 24, thereby further improves accuracy.Though described structure, operation principle and the mode of grating chi herein briefly.But should be understood that because the grating chi is a known products the above-mentioned function that is used to measure amount of movement and translational speed is known in those skilled in the art, therefore, according to description like this, can be realized fully.

Claims

1, a kind of mechano-electronic servo digital control bender comprises:

2, mechano-electronic servo digital control bender as claimed in claim 1, it is characterized in that, also comprise the grating chi, be arranged between described slide block and the described frame, be used to detect the amount of movement and the translational speed of described slide block, produce amount of movement and translational speed signal, offer described servomotor digital control system.

3, mechano-electronic servo digital control bender as claimed in claim 1 is characterized in that, a plurality of movable belt pulleys in the described pulley system and a plurality ofly decide the even compartment of terrain of belt wheel and be provided with.