Extra-heavy double-machine linkage open type bending machine

Abstract

The invention belongs to the technical field of bending machines, and particularly relates to an extra-heavy double-machine linkage open type bending machine which comprises two bending machine bodies arranged in sequence, a die assembly, a hydraulic system, a feeding auxiliary machine and a numerical control system, each bending machine body comprises a mechanical compensation workbench, and the die assembly comprises an inserting piece lower die installed on the mechanical compensation workbench; the upper die piece is arranged above the sheet inserting lower die and comprises an upper die handle and an upper die head connected with the upper die handle, the hydraulic system is used for driving the upper die piece to move up and down, and the auxiliary feeding machine is used for feeding a bent plate to the sheet inserting lower die to be bent. The numerical control system is used for being in control connection with the auxiliary feeding machine, the hydraulic system and the mechanical compensation workbench. The plate bending machine can realize double-machine linkage work, can also realize single-machine independent work, can be suitable for bending plates with different thicknesses and lengths, and has the advantages of being simple in structure, stable, reliable, high in bending precision, wide in application range and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of bending machines, and in particular relates to an ultra-heavy double-machine linkage open bending machine. Background Art

[0002] A bending machine is a machine that can bend plates. Its structure mainly includes left and right wall panels, sliders, vertical plates, left and right cylinders, hydraulic systems, mold components, feeding auxiliary machines, and front and rear support racks. A bending machine is an important equipment for bending and forming workpieces in the sheet metal industry. Its function is to press steel plates into parts of various shapes according to process requirements. When a single bending machine cannot meet production needs, a double-machine linkage bending machine can meet different production and processing needs. It can operate both double machines and a single machine, which is flexible and efficient.

[0003] However, the largest open-type bending machine that can be made in China at present is 4,000 tons. Domestic bending machines with larger tonnage generally adopt O-type structure, which adopts more multi-cylinder power structure, and there will be problems such as over-definition and difficult to control bending accuracy. Summary of the invention

[0004] The purpose of the present invention is to solve the defects and shortcomings in the prior art and to provide an ultra-heavy double-machine linkage open type bending machine.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: an ultra-heavy double-machine linkage open type bending machine, comprising:

[0006] Two bending machine bodies arranged in sequence, the bending machine bodies comprising a mechanical compensation workbench;

[0007] A mold assembly, the mold assembly comprising a lower die for inserting the sheet mounted on a mechanical compensation workbench, and an upper mold component arranged above the lower die for inserting the sheet, the upper mold component comprising an upper mold handle and an upper mold head connected to the upper mold handle;

[0008] A hydraulic system, wherein the hydraulic system is used to drive the upper mold to move up and down;

[0009] A feeding auxiliary machine, which is used to feed the bent sheet to the lower die of the insert for bending;

[0010] A numerical control system is used for controlling and connecting with a feeding auxiliary machine, a hydraulic system and a mechanical compensation workbench.

[0011] Preferably, the mechanical compensation workbench is installed on the lower vertical plate, and the lower vertical plate is installed on the left and right wall panels through the upper semicircular pads.

[0012] Preferably, the hydraulic system and the mechanical compensation workbench are respectively mounted on the upper support and the lower vertical plate, the upper mold is mounted on a slide block, and the slide block is connected to the tightening bolts in the left and right cylinders.

[0013] Preferably, the left and right oil cylinders include a cylinder body, a piston rod and a cylinder cover; a seal is provided between one end of the piston rod and the cylinder body, and the other end is connected to a tightening bolt.

[0014] Preferably, left and right magnetic scales are also provided on one side of the slider.

[0015] Preferably, the feeding auxiliary machine includes a base, an auxiliary material support plate arranged on one side of the base, and a stopper finger slidably arranged on the base through a linear guide rail.

[0016] Preferably, the stopper finger is connected to a component ball screw, and the component ball screw is connected to a motor component via a synchronous belt and a synchronous pulley.

[0017] Preferably, the stopper finger includes a stopper seat, a bumper block and a cushion block, and the motor assembly includes a motor and a reducer.

[0018] Preferably, a supporting rack is also provided on one side of the feeding auxiliary machine.

[0019] After adopting the above technical solution, the super heavy double-machine linkage open type bending machine provided by the present invention has the following beneficial effects:

[0020] The present invention can control the feeding auxiliary machine to send the bent sheet to the specified position of the bending lower die through the numerical control system, and then control the left and right oil cylinders through the hydraulic system to make the slider fixed on the piston rod move up and down, so as to realize the up and down movement of the upper die installed on the slider. According to the bending parameters, the numerical control system automatically calculates and controls the compensation amount of the mechanical compensation workbench installed on the lower vertical plate, and then accurately controls the running position of the slider through the proportional valve in the hydraulic system and forms a closed-loop control with the position detected by the left and right magnetic scales, so as to achieve accurate control of the running position of the upper die, thereby realizing high-precision sheet bending; in addition, the two sequentially arranged bending machine bodies of the present invention respectively select a PBA-4000T*6100mm and a PBA-5000T*8100mm bending machine. The control system can realize dual-machine linkage operation, and the maximum tonnage can reach 9000 tons, and can also realize single-machine operation, and the maximum tonnage can reach 5000 tons, so as to adapt to the bending of sheets of different thicknesses and lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an ultra-heavy double-machine linkage open-type bending machine of the present invention;

[0022] Figure 2 for Figure 1 Middle AA side view;

[0023] Figure 3 It is a structural schematic diagram of the left and right oil cylinders in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the feeding auxiliary machine in the present invention;

[0025] Figure 5 It is a schematic structural diagram of the mold assembly in the present invention.

[0026] Among them: 1-left and right wall panels; 2-slider; 3-vertical plate; 4-left and right cylinders; 4.1-cylinder body; 4.2-seal; 4.3-piston rod; 4.4-cylinder head; 4.5-tightening bolts; 5-left and right magnetic scales; 6-support shaft; 7-CNC system; 8-feeding auxiliary machine; 8.1-finger stop; 8.2-auxiliary support; 8.3-ball screw; 8.4-linear guide; 8.5-base; 8.6-motor assembly; 8.7-synchronous belt and synchronous pulley; 9-front and rear support racks; 10-hydraulic system; 11-upper support; 12-lower support; 13-mold assembly; 13.1-upper mold handle; 13.2-upper mold head; 13.3-insert lower mold; 14-mechanical compensation workbench; 15-control cabinet. DETAILED DESCRIPTION

[0027] The present invention is further described clearly and completely below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0030] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0033] like Figure 1-5As shown, the present invention provides an ultra-heavy dual-machine linkage open-type bending machine, two bending machine bodies arranged in sequence, specifically, the two bending machine bodies respectively select a PBA-4000T*6100mm bending machine and a PBA-5000T*8100mm bending machine, the two bending machines can work in dual linkage, that is, the maximum tonnage can reach 9000 tons, and can also realize single machine work, that is, the maximum tonnage can reach 5000 tons. The present invention can meet the precise bending of ultra-large plate thickness workpieces.

[0034] The two bending machine bodies include left and right wall panels 1, sliders 2, vertical plates 3, left and right oil cylinders 4, left and right magnetic scales 5, support pins 6, CNC systems 7, mechanical compensation workbenches 14, control cabinets 15, hydraulic systems 10, upper supports 11, lower supports 12 and mold components 13. The left and right wall panels 1, sliders 2 and vertical plates 3 are all welded from steel plates. The left and right wall panels 1 are fixed to the ground support plates through anchor plates. The hydraulic systems 10 and mechanical compensation workbenches 14 are respectively installed on the upper supports 11 and lower vertical plates 3 of the left and right wall panels 1. Specifically, the mechanical compensation workbenches 14 are installed on the lower vertical plates 3. The lower vertical plates 3 are welded together. The upper semicircular pad is installed on the left and right wall panels 1, and the vertical plane of the X-axis has a certain degree of freedom, so that it can be achieved under the control of the numerical control system to drive the mechanical compensation workbench 14 to provide a certain amount of compensation. The left and right oil cylinders 4 are fixed to the left and right wall panels 1 by screws. The left and right oil cylinders 4 include a cylinder body 4.1, a piston rod 4.3 and a cylinder cover 4.4. A seal 4.2 is arranged between one end of the piston rod 4.3 and the cylinder body 4.1, and the other end is connected to a tightening bolt 4.5. The slider 2 is fixed to the piston rod of the left and right oil cylinder 4 by a support pin 6 and a tightening bolt 4.5. Furthermore, a left and right magnetic scale 5 is also arranged on one side of the slider 2.

[0035] The mold assembly 13 includes a lower mold 13.3 installed on a mechanical compensation workbench 14, and an upper mold member arranged above the lower mold 13.3. The upper mold member is installed on a slider 2, and the slider 2 is connected to the tightening bolts 4.5 in the left and right cylinders 4, and the upper mold member includes an upper mold handle 13.1 and an upper mold head 13.2 connected to the upper mold handle 13.1.

[0036] Furthermore, each bending machine is provided with front and rear feeding auxiliary machines 8 and front and rear supporting racks 9. The front feeding auxiliary machine is installed on the ground, and the rear feeding auxiliary machine is installed on the lower supporting surface of the main machine, and is used to feed the bending sheet to the insert lower die 13.3 for bending. Similarly, the front supporting rack is installed on the ground, and the rear supporting rack is installed on the lower supporting surface of the main machine. Specifically, the feeding auxiliary machine 8 includes a base 8.5, an auxiliary material support plate 8.2 arranged on one side of the base 8.5, and a stopper finger 8.1 slidably arranged on the base 8.5 through a linear guide rail 8.4. The stopper finger 8.1 is connected to the assembly ball screw 8.3, and the assembly ball screw 8.3 is connected to the motor assembly 8.6 through a synchronous belt and a synchronous pulley 8.7. The stopper finger 8.1 includes a stopper seat, a bumper block and a pad block, and the motor assembly 8.6 includes a motor and a reducer.

[0037] Furthermore, each bending machine is also provided with a corresponding numerical control system 7 and a control cabinet 15 , and the numerical control system 7 is used for controlling and connecting with the feeding auxiliary machine 8 , the hydraulic system 10 and the mechanical compensation workbench 14 .

[0038] When the ultra-heavy double-machine linkage open-type bending machine of the present invention is working, the feeding auxiliary machine 8 is controlled by the instruction of the numerical control system 7 to send the bent sheet to the specified position of the insert lower die 13.3, and then the left and right oil cylinders 4 are controlled by the hydraulic system 10 to make the slider 2 fixed on the piston rod 4.3 move up and down, thereby realizing the up and down movement of the upper die head 13.2 installed on the slider 2. According to the bending parameters, the numerical control system 7 automatically calculates and controls the compensation amount of the mechanical compensation workbench 14 installed on the lower vertical plate 3, and then the proportional valve in the hydraulic system 10 is used to accurately control the running position of the slider 2 and form a closed-loop control with the position detected by the left and right magnetic scales 5, so as to achieve accurate control of the running position of the upper die head 13.2, thereby realizing high-precision sheet bending. The control system 7 can realize the double-machine linkage operation, and the maximum tonnage can reach 9,000 tons, and can also realize the single-machine operation, and the maximum tonnage can reach 5,000 tons.

[0039] In summary, the ultra-heavy-duty double-machine linkage open-type bending machine provided by the present invention can realize double-machine linkage operation, and can also realize single-machine independent operation. It can adapt to the bending of sheets of different thicknesses and lengths, and has the advantages of simple structure, stable and reliable, high bending precision, and wide range of applications.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ultra-heavy double-machine linkage open bending machine, characterized in that: include: Two bending machine bodies arranged in sequence, the bending machine bodies comprising a mechanical compensation workbench (14); A mold assembly (13), the mold assembly (13) comprising a lower insert mold (13.3) mounted on a mechanical compensation workbench (14), and an upper mold component arranged above the lower insert mold (13.3), the upper mold component comprising an upper mold handle (13.1) and an upper mold head (13.2) connected to the upper mold handle (13.1); A hydraulic system (10), the hydraulic system (10) being used to drive the upper mold to move up and down; A feeding auxiliary machine (8), the feeding auxiliary machine (8) is used to feed the bent sheet material to the insert lower die (13.3) for bending; A numerical control system (7) is used for controlling and connecting with a feeding auxiliary machine (8), a hydraulic system (10) and a mechanical compensation workbench (14).

2. The ultra-heavy double-machine linkage open type bending machine according to claim 1 is characterized in that: The mechanical compensation workbench (14) is mounted on the lower vertical plate (3), and the lower vertical plate (3) is mounted on the left and right wall panels (1) via upper semicircular pads.

3. The ultra-heavy double-machine linkage open type bending machine according to claim 1 is characterized in that: The hydraulic system (10) and the mechanical compensation workbench (14) are respectively mounted on the upper support (11) and the lower vertical plate (3); the upper mold is mounted on a slide block (2); and the slide block (2) is connected to the tightening bolts (4.5) in the left and right oil cylinders (4).

4. The ultra-heavy double-machine linkage open type bending machine according to claim 3 is characterized in that: The left and right oil cylinders (4) comprise a cylinder body (4.1), a piston rod (4.3) and a cylinder cover (4.4); a sealing member (4.2) is arranged between one end of the piston rod (4.3) and the cylinder body (4.1), and the other end is connected to a tightening bolt (4.5).

5. The super heavy-duty double-machine linkage open type bending machine according to claim 3 is characterized in that: Left and right magnetic scales (5) are also arranged on one side of the slider (2).

6. The ultra-heavy double-machine linkage open type bending machine according to claim 1, characterized in that: The feeding auxiliary machine (8) comprises a base (8.5), an auxiliary material support plate (8.2) arranged on one side of the base (8.5), and a stopper finger (8.1) slidably arranged on the base (8.5) via a linear guide rail (8.4).

7. The ultra-heavy double-machine linkage open type bending machine according to claim 6, characterized in that: The stop finger (8.1) is connected to a component ball screw (8.3), and the component ball screw (8.3) is connected to a motor component (8.6) via a synchronous belt and a synchronous pulley (8.7).

8. The super heavy-duty double-machine linkage open type bending machine according to claim 7, characterized in that: The stopper finger (8.1) comprises a stopper seat, a collision block and a cushion block, and the motor assembly (8.6) comprises a motor and a reducer.

9. The ultra-heavy double-machine linkage open type bending machine according to claim 1, characterized in that: A supporting frame (9) is also provided on one side of the feeding auxiliary machine (8).

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