Modularized parallel feeding device for bending pieces

Abstract

A modular row arrangement feeding device of bending parts belongs to the technical field of metal processing and is used for processing metal sheet bending parts. The device comprises a base, a guide mechanism, a feeding mechanism, a pressing mechanism and a blanking mechanism on the base, and each part is made of high-strength and light-weight material. In actual use, the number of units can be freely combined according to the quantity and efficiency requirements, and only the working platform area needs to be expanded and the corresponding number of unit modules needs to be increased. The device has the beneficial effects that: the feeding device adopts modular design, the number of feeding units can be replaced and adjusted according to the quantity and efficiency requirements of parts, and the single bending quantity meeting the requirements can be satisfied; the blanking mechanism and the guide mechanism adopt adjustable design, which can adapt to the processing requirements of parts of different shapes, sizes and thicknesses; through the precisely processed guide plate and the adjustable guide groove, the positioning accuracy of the parts in the feeding process is ensured; the structure is convenient to maintain, simple to operate, safe and reliable, and the production efficiency can be improved.

Description

Technical Field

[0001] This invention belongs to the field of metal processing technology and is applicable to the bending and forming of thin metal sheet parts, especially corner piece parts. It is a device that achieves high-efficiency feeding through a row arrangement. Background Technology

[0002] Sheet metal parts account for a large proportion of aircraft manufacturing, and their processing precision and efficiency directly affect the safety and performance of the aircraft.

[0003] Corner plate parts are an important component of aircraft structure. They are numerous and require high precision. Traditional manual or semi-automatic feeding methods can no longer meet the needs of modern aerospace manufacturing.

[0004] Therefore, it is particularly important to develop an automated feeding system that can improve processing efficiency, ensure processing accuracy, and adapt to complex part shapes. Summary of the Invention

[0005] This invention aims to provide a modular bending feeding mechanism suitable for aerospace sheet metal parts, especially corner piece parts, to solve the problems of low processing efficiency, unstable accuracy, and complex operation in the existing technology. The device has the following characteristics: (1) High precision: Ensures the positioning accuracy of parts during the bending process, meeting the standard requirements of the aerospace manufacturing industry. (2) High efficiency: Improves the automation level of bending processing, reduces manual operation, and shortens the production cycle. (3) Versatility: Can adapt to corner piece parts of different shapes and sizes, with good adaptability and expandability. (4) Simple operation: Simplifies the operation process, reduces operational difficulty, and improves production efficiency.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A modular bending part feeding device is a novel modular design for processing bent metal sheet parts. The modular bending part feeding device comprises a base 2, and five main parts located on the base 2: a guiding mechanism 1, a feeding mechanism, a pressing mechanism 5, and a dropping mechanism 7. All parts are manufactured using high-strength, lightweight materials. Details are as follows:

[0008] The base 2 is made of a lightweight material that ensures strength, and is entirely machined from 7050-T7451 grade aluminum alloy thick plate. The base 2 serves as the main structure of the entire device, connecting the mechanical operation of each component. The base 2 includes ball bearings between the push rod 4 in the feeding mechanism and the base, and limiting sliders for the guide plates on both sides of the guide mechanism. The first step surfaces on the left and right sides adjacent to the central plane are used to install the guide mechanism 1, and limiting sliders are provided on these first step surfaces to limit the displacement of the guide mechanism. Two rows of cylindrical rollers are symmetrically arranged along the length of the plane between the base 2 and the two side guide plates. The ball bearings assist the two side guide plates 2 in displacement on the base 1. Rotary bolts are provided at both ends of the base 2, with the root of the rotary bolts connected to the guide plates for adjusting the position of the guide plates on the base 2 from both sides, facilitating the lateral movement of the two side guide plates.

[0009] The guiding mechanism consists of two precision-machined and assembled guide plates located above the base 2. The guide plates have a symmetrical structure along their length, with a stepped structure from both sides to the middle. This stepped structure matches the dimensions of the two rows of cylindrical rollers on the base 2. Two rows of stoppers are provided on the upper surface of the two guide plates, forming a precise guide groove between the stoppers and the upper surface of the guide plates. The workpiece blank is placed on the upper surface of the guide plates, and the position of the workpiece on both sides is restricted by the stoppers. The height of the formed guide groove, i.e., the height of the upper surface of the guide plates, is level with the bending groove of the bending equipment, ensuring that the workpiece can be fed above the bending groove. This ensures the stability and accuracy of the workpiece during the feeding process. The guide plates and the base are laterally moved by bolts and cylindrical rollers; this lateral movement adjusts the width of the guide groove.

[0010] The feeding mechanism, located in the middle of the base 2, includes a push rod 4 and a movable top block 3. The push rod 4 slides with the base 2 via ball bearings. The movable top block 3 is located at the end of the push rod 4 and is detachable from it. The size and shape of the movable top block 3 can be customized according to the specific needs of the parts, enriching the range of processable parts. During operation, the workpiece blank is placed in the guide groove, and the part's position is restricted on both sides by the guide plate's stop. The push rod 4 controls the stroke of the movable top block from the rear; it can be pushed and pulled back and forth from the rear, causing the movable top block to reciprocate. The movable top block 3 ejects the workpiece blank from the guide groove. Pushing the push rod 4 forward causes the front end of the movable top block 3 to press against the workpiece blank, feeding it onto the bending slot of the bending equipment.

[0011] The pressing mechanism 5 employs a slider linkage and roller design. The optimized roller arrangement effectively prevents parts from derailing during feeding. The pressing mechanism 5 is located at the front end of the base 2 near the bending equipment's cutter groove. The fixing plates on both sides of the unloading mechanism 5 are connected to the sides of the base 2. The roller shafts are limited by the fixing plates, and springs on the fixing plates apply a downward force to the rollers, causing them to press the parts firmly. The design of the pressing mechanism 5 takes into account the relatively light weight of aerospace sheet metal parts, preventing parts from detaching from the guide groove during forward feeding and improving feeding stability.

[0012] The feeding mechanism 7 is used to drop stacked parts one by one into the guide groove through the reciprocating motion of the feeding mechanism. The feeding mechanism 7 includes a support plate and four limiting supports 6 in four directions. The support plate is located above the base 2, and the four corners of the support plate are bolted to the base 2. The center of the support plate is hollowed out to place the stacked parts, and the grooves in the four directions of the support plate are used to place the limiting supports 6 and restrict the displacement direction of the limiting supports 6. The position of the limiting supports 6 can be adjusted on the support plate, and the limiting supports 6 as a whole play a role in fixing the position of the stacked parts. At the same time, the limiting supports at the front end of the guide direction also play a role in limiting that only one part is fed at a time. Specifically, a shim is placed in the groove at the front end of the guide direction of the support plate, and then the limiting support is placed in the groove. By using shims of different thicknesses, the height below the limiting support is adjusted, thereby adjusting the thickness of the sheet metal of the parts that can pass through, which increases the versatility.

[0013] The base 2, feeding mechanism, guiding mechanism 1, pressing mechanism 5, and unloading mechanism 7 all adopt a modular design. Each base 2 and mechanism forms an independent bending part feeding device, meaning that the device can feed material once per push-pull reciprocating motion. The base 2, as the main body connecting the various mechanisms, allows for parallel installation of bases and side-by-side connection of the various devices. Figure 1 The diagram shows a three-unit feeding device connected in a row. Each unit within the row has its own set of the aforementioned mechanisms. The feeding mechanisms, through the addition of a connecting rod at the rear end, allow all feeding mechanisms to move simultaneously and in coordination, meaning that a single push-pull reciprocating motion can simultaneously feed three parts. Furthermore, fixing bolts are arranged on both sides of the base 2 of each unit, facilitating the disassembly and assembly of the bases. In other words, the units are connected via base 1, and the push rods 4 are connected via connecting rods; multiple units are connected side-by-side in a row.

[0014] In actual use, the number of units can be freely combined according to quantity and efficiency requirements. It is only necessary to expand the work platform area and add the corresponding number of unit modules.

[0015] A method of using a modular bending component feeding device includes the following:

[0016] First, place the bending feeder in the working area of ​​the bending equipment, either on the equipment's built-in workbench or on an additional independent workbench, ensuring that the overall height of the device matches the lower surface of the guide plate with the upper surface of the cutter groove, so that the parts can be fed above the cutter groove.

[0017] Secondly, after the overall position is fixed, the parts to be processed are stacked and aligned according to their shape, and placed in the unloading device of the mechanism. The width of the guide plate is manually adjusted by the knob. The lower part of the stack is positioned by the stop plates on both sides of the guide plate. The upper part of the stack is positioned by the limiting support column 6 of the unloading mechanism. Adjust the unloading limiting support column to the appropriate position. According to the thickness of the part to be processed, select a shim of appropriate thickness and place the shim in the groove at the front end of the guide direction of the unloading mechanism. Then, place the limiting support column at this position on the groove to limit that only one part will be ejected each time it is fed.

[0018] Then, by pushing the push rod 3, the top block 4 pushes the part along the guide groove to the bending position of the equipment, so that the bending equipment can perform the bending operation.

[0019] Finally, by pulling back push rod 3, the next piece of blank material in the blanking mechanism will fall into the guide groove.

[0020] The beneficial effects of this invention are as follows:

[0021] (1) Modular design: The feeding device adopts a modular design, and the number of feeding units can be changed and adjusted according to the number of parts being processed and the efficiency requirements, so as to meet the required number of single bends.

[0022] (2) Universal design: The blanking mechanism and the guiding mechanism adopt an adjustable design, and each part can be quickly adjusted as needed to adapt to the processing requirements of parts with different shapes, sizes and thicknesses.

[0023] (3) High-precision guidance: The design of the guidance mechanism fully considers the high-precision requirements of aerospace sheet metal parts. Through precision-machined guide plates and adjustable guide grooves, the positioning accuracy of parts during the feeding process is ensured.

[0024] (4) The structure is easy to maintain: all components of the unit are designed to be detachable, and the components that need maintenance and repair can be replaced according to the usage.

[0025] (5) User-friendly operation: The feeding device is simple and easy to operate. Operators can complete the setting and adjustment of the feeding mechanism through simple operation. The operation is easy and improves production efficiency compared with the traditional method.

[0026] (6) Safer operation: In the traditional bending tool mold closing process, the operator needs to hold the part for a long time and go through the mold closing process, which poses certain safety hazards. This invention can replace hand operation, which is safe and reliable. Attached Figure Description

[0027] Figure 1 This is an overall view of the row arrangement; in the figure, (a) is the front view, (b) is the top view, and (c) is the side view.

[0028] Figure 2 This is a partial view (base and guide mechanism).

[0029] Figure 3 This is a partial view (feeding mechanism).

[0030] Figure 4 This is a partial view (material feeding mechanism and material pressing mechanism).

[0031] Figure 5 This is a schematic diagram of the processing method.

[0032] Figure 6 This is a schematic diagram showing the internal details of the base.

[0033] Figure 7 This is a schematic diagram of the bottom connection method of the linkage mechanism.

[0034] In the diagram: 1. Guiding mechanism; 2. Base; 3. Movable top block; 4. Trailing rod; 5. Pressing mechanism; 6. Limiting column; 7. Discharge mechanism. Detailed Implementation

[0035] The present invention will be further described below with reference to specific embodiments.

[0036] A novel modular design for feeding bent parts in a row, used for processing bent metal sheet parts.

[0037] The feeding device consists of five main parts: base, guiding mechanism, feeding mechanism, pressing mechanism and unloading mechanism. All parts are made of high-strength and lightweight materials.

[0038] ① Design of Base 2: Base 2 is made of a lightweight material that ensures strength, with most of it being T-state aluminum alloy. The height of Base 2 is level with the height of the bending slot of the bending equipment so that the parts can be fed above the slot. As the main structure of the entire device, Base 2 connects the mechanical operation of each component. Base 2 consists of ball bearings between the top plate and the base in the feeding mechanism, and the limiting sliders of the guide plates on both sides of the guide mechanism 1.

[0039] ② Design of guiding mechanism 1: It consists of two precision-machined and assembled guide plates, forming a precise guide groove between them to ensure the stability and accuracy of the parts during the feeding process. The guide plates adopt an adjustable design, which can be finely adjusted according to the specific shape of the parts to improve machining accuracy. The guide plates and the base move laterally via sliders.

[0040] ③ Feeding Mechanism Design: Composed of a push rod 4 and a movable top block 3. The movable top block 3 is located at the end of the push rod 4 and is detachable from it. The size and shape of the movable top block 3 can be customized according to the specific requirements of the parts, enriching the range of processable parts. This embodiment uses a semi-circular universal top block. The movable top block 3 is made of high-strength steel, and its surface undergoes special treatment to reduce friction and improve feeding efficiency.

[0041] ④ Design of the pressing mechanism 5: Adopting an advanced slider linkage and roller design, the rational layout of the rollers effectively prevents parts from derailing during the feeding process. The design of the pressing mechanism fully considers the characteristics of aerospace sheet metal parts, improving feeding stability while ensuring processing accuracy.

[0042] ⑤ Design of the unloading mechanism 7: The unloading mechanism 7 is used to drop stacked parts one by one into the guide groove through the reciprocating motion of the feeding mechanism. The unloading mechanism 7 includes four limiting pillars 6. The limiting pillars 6 are adjustable in position. The limiting pillars 6 used for guiding direction also play a role in limiting each feeding to ensure that only one piece is fed at a time. The thickness of the sheet material that can be passed through can be adjusted by the shims to increase versatility.

[0043] ⑥ The feeding mechanism, guiding mechanism 1, pressing mechanism 5, and unloading mechanism 7 are used in a group arranged in a row, and are easy to disassemble and install, adopting a modular design. That is, a whole mechanism can be regarded as a complete unit, and multiple units are connected side by side in a row form, connected by a base, and the push rods are connected by connecting rods.

[0044] The embodiments described above are merely illustrative of the implementation methods of the present invention, but should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A modular bending part feeding device for processing thin metal sheet bending parts, characterized in that, The modular bending component feeding device includes a base (2), a guide mechanism (1), a feeding mechanism, a pressing mechanism (5), and a dropping mechanism (7) located on the base (2); specifically as follows: The base (2) serves as the main structure of the entire device, connecting the mechanical operation of each component through the base (2); the base (2) includes the ball bearings between the push rod (4) in the feeding mechanism and the base, and the limiting sliders of the guide plates on both sides of the guide mechanism (1); the first step surfaces on the left and right sides of the upper surface of the base (2), adjacent to the central plane, are used to install the guide mechanism (1), and the first step surfaces are provided with limiting sliders to limit the displacement of the guide mechanism (1); the plane between the base (2) and the two guide plates on both sides is symmetrically provided with two rows of cylindrical rollers along the length direction, and the ball bearings are used to assist the two guide plates on both sides in displacement on the base (2); The guiding mechanism (1) consists of two precision-machined and assembled guide plates, located above the base (2). The guide plates have a symmetrical structure along the length direction, and a stepped structure from both sides to the middle. The stepped structure matches the size of the two rows of cylindrical rollers on the base (2). Two rows of stoppers are provided on the upper surface of the two guide plates. The stoppers and the upper surface of the guide plates form a guide groove. The workpiece blank is placed on the upper surface of the guide plates. The position of the workpiece on both sides is restricted by the stoppers on both sides. The height of the guide groove formed is the height of the upper surface of the guide plates and the height of the bending groove of the bending equipment, so that the workpiece can be sent to the top of the groove. The feeding mechanism is located in the middle of the base (2) and includes a push rod (4) and a movable top block (3). The push rod (4) slides with the base (2) through a ball bearing. The movable top block (3) is located at the end of the push rod (4) and is designed to be detachable from the push rod (4). The size and shape of the movable top block (3) are customized according to the specific requirements of the parts. During operation, the workpiece blank is placed in the guide groove. The position of the part on the left and right sides is restricted by the guide plate. The push rod (4) controls the stroke of the movable top block. Pushing and pulling the push rod (4) back and forth can make the movable top block move back and forth. The movable top block (3) is used to push out the workpiece blank located in the guide groove and then send the part to the bending knife groove of the bending equipment. The pressing mechanism (5) adopts a slider connecting rod and roller design to prevent the parts from derailing during the feeding process; the pressing mechanism (5) is located at the front end of the base (2) near the bending equipment knife groove, the fixing plates on both sides of the pressing mechanism (5) are connected to both sides of the base (2), its roller shaft is limited by the fixing plate, and by setting a spring on the fixing plate, a downward force is applied to the roller shaft to drive the roller to press the parts; The material dropping mechanism (7) is used to drop stacked parts one by one into the guide groove through the reciprocating motion of the feeding mechanism. The material dropping mechanism (7) includes a support plate and four limiting support columns (6). The support plate is located above the base (2). The four corners of the support plate are fixedly connected to the base (2). The middle of the support plate is hollowed out to place the stacked parts. The grooves in the four directions of the support plate are used to place the limiting support columns (6) and limit the displacement direction of the limiting support columns (6).

2. The modular bending component feeding device according to claim 1, characterized in that, The base (2), feeding mechanism, guiding mechanism (1), pressing mechanism (5) and dropping mechanism (7) are all modularly designed. Each base (2) and mechanism is combined to form an independent bending part feeding device, that is, the device can feed once for one push-pull reciprocating motion. The base (2) is the main body connecting each mechanism. Its modular design allows the base (2) to be installed in a row and the various devices to be connected side by side.

3. The modular bending component feeding device according to claim 1, characterized in that, The base (2) is provided with knob bolts at both ends. The root of the knob bolt is connected to the guide plate to adjust the position of the guide plate on the base (2) from both sides, and to move the guide plates laterally on both sides.

4. The modular bending component feeding device according to claim 1, characterized in that, The guide plate and the base (2) move laterally by bolts and cylindrical rollers, and the lateral movement plays the role of adjusting the width of the guide groove.

5. A modular bending component feeding device according to claim 1, characterized in that, The limiting support (6) can be adjusted in position on the support plate, and the limiting support (6) as a whole plays the role of fixing the position of the stacked parts.

6. A modular bending component feeding device according to claim 1, characterized in that, The base (2) is made of aluminum alloy material and is milled.

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