Automatic stock layout precision blanking device for bottom fork mounting plate

Abstract

The utility model discloses an automatic stock layout precision blanking device for a bottom fork mounting plate, which comprises a blanking mechanism, limiting pieces are arranged on a bearing plate of the blanking mechanism, and a limiting channel is formed between the two rows of limiting pieces, so that a metal sheet can only slide along the limiting channel when the metal sheet is placed on the bearing plate; the feeding end of the limiting channel corresponds to the blanking die, a positioning platform is arranged on the side, close to the feeding end of the limiting channel, of the blanking mechanism, and a metal sheet placed on the positioning platform can be aligned to the feeding end of the limiting channel. A traction mechanism is arranged on the same side of the positioning platform and the bearing plate and can adsorb and drive the metal sheet to enter the limiting channel from the positioning platform and slide along the limiting channel in a fixed-length mode. According to the utility model, the metal sheet can be automatically dragged to be matched with the blanking mechanism to realize precise blanking layout, and the uniformity of the layout and the contour quality of a sample blank are ensured.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle parts manufacturing technology, and in particular to an automatic nesting precision punching device for a flat fork mounting plate. Background Technology

[0002] Electric vehicle parts are mostly metal stampings. Typically, large metal sheets are first stamped into several sheet blanks with predetermined contours, which are then stamped into shape. Since electric vehicle parts often have irregular contours, such as fork mounting plates, blanking layout is necessary to improve sheet material utilization and reduce costs. Currently, blanking layout is achieved by manually adjusting the position of the metal sheets relative to the blanking die during the stamping process. This is not only physically demanding and poses high safety risks for workers, but it also makes it difficult to ensure uniform layout, affecting the contour quality of the stamped blanks. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides an automatic layout and precision punching device for a flat fork mounting plate, which can automatically pull the metal sheet and cooperate with the punching mechanism to achieve precise punching and layout, ensuring the uniformity of the layout and the contour quality of the sample blank.

[0004] Technical solution: To achieve the above objectives, this utility model provides an automatic layout precision punching device for a flat fork mounting plate, including a punching mechanism. Limiting components are provided on the pressure plate, and a limiting channel is formed between two rows of limiting components, so that when the metal sheet is placed on the pressure plate, it can only slide along the limiting channel.

[0005] The feeding end of the limiting channel corresponds to the punching die. The punching mechanism is equipped with a positioning platform on the side near the feeding end of the limiting channel, which can align the metal sheet placed on it with the feeding end of the limiting channel. A traction mechanism is provided on the same side of the positioning platform and the pressure plate, which can attract and drive the metal sheet from the positioning platform into the limiting channel and slide it along the limiting channel to a fixed length.

[0006] Furthermore, the positioning platform surface is flush with the plate surface of the pressure plate, and the positioning platform surface is also provided with limiting components, forming a loading and unloading channel aligned with the limiting channel between the two rows of limiting components.

[0007] Furthermore, the positioning platform is positioned at a distance from the pressure plate, and the positioning platform is configured to rotate horizontally.

[0008] Furthermore, the traction mechanism includes a magnetic block, which is connected to the upper part of the sliding seat through a lifting and releasing mechanism. The sliding seat cooperates with a slide rail set on the side of the positioning platform and the pressure plate. The lifting and releasing mechanism can drive the magnetic block to move up and down. During traction, the magnetic block is attracted to the upper surface of the metal sheet.

[0009] Furthermore, the lifting and placing mechanism includes a rod body, one end of which is fixedly connected to the magnetic block, and the other end is hinged to the end of the piston rod of the drive cylinder, and the middle part cooperates with the hinge seat. The hinge seat is fixed to the upper part of the sliding seat, and the cylinder body of the drive cylinder is longitudinally fixed to the outer side of the sliding seat.

[0010] Furthermore, two traction mechanisms are provided on the same side of the positioning platform and the pressure plate to form a traction and pressing assembly, and both traction mechanisms can slide and lift independently.

[0011] Furthermore, two traction and pressing engagement groups are symmetrically arranged on both sides of the positioning platform and the pressure plate, and the two traction mechanisms corresponding to each other between the two traction and pressing engagement groups slide and lift synchronously.

[0012] Furthermore, a flexible layer is provided on the lower side of the magnetic block. When the lower side of the magnetic block is horizontal, the distance between the lower side of the flexible layer and the plane on the bearing plate is greater than the thickness of the metal sheet.

[0013] Beneficial effects: The automatic layout and precision punching device for a flat fork mounting plate of this utility model can replace manual dragging of metal sheets to correspond with the punching die through a traction mechanism. This not only ensures the safety of workers and reduces the degree of labor, but also achieves more precise punching layout, ensuring layout uniformity and improving sheet utilization. At the same time, it also ensures the integrity of the outline of the punched sample blank, avoiding uneven quality of punched parts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the metal sheet punching device of this utility model;

[0015] Figure 2 This is a schematic diagram of the traction mechanism according to one embodiment of the present invention. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] As attached Figure 1-2The aforementioned automatic layout precision blanking device for a flat fork mounting plate includes a blanking mechanism. A pressure plate 1 has limiting members 2, forming a limiting channel between two rows of limiting members 2, allowing the metal sheet 10 to slide only along the limiting channel when placed on the pressure plate 1. The feeding end of the limiting channel corresponds to the blanking die. A positioning platform 3 is provided on the side of the blanking mechanism near the feeding end of the limiting channel, aligning the metal sheet 10 placed on it with the feeding end of the limiting channel. A traction mechanism 4 is provided on the same side of the positioning platform 3 and the pressure plate 1, attracting and driving the metal sheet 10 from the positioning platform 3 into the limiting channel and sliding it along the limiting channel to a fixed length. During punching, simply place the pre-cut metal sheet onto the positioning platform, ensuring it aligns with the feed end of the limiting channel. Then, drive the traction mechanism 4 to move the sheet to the designated position on the pressure plate, and begin punching. Each punch involves the traction mechanism 4 moving the sheet one unit distance along the limiting channel, which is the preset spacing. This continues until the corresponding number of punching operations for the sheet is completed. During this process, workers only need to feed the metal sheet from a position away from the punching machine, making the operation safe and reducing labor intensity. The traction mechanism provides more stable movement, and the limiting channel prevents the sheet from shifting left or right, resulting in even and neat distribution of the punched holes. The spacing can be preset to be as small as possible, improving sheet utilization and ensuring the cut sample blanks have complete outlines, meeting the production requirements of electric vehicle parts.

[0018] The positioning platform 3 is flush with the upper surface of the pressure plate 1, and the positioning platform 3 is also equipped with limiting members 2. Two rows of limiting members 2 form a loading / unloading channel aligned with the limiting channel. During loading, the sheet is directly placed in the loading / unloading channel, making loading and positioning more convenient. As a continuation of the limiting channel, the loading / unloading channel ensures that the sheet is constrained and limited along its entire length in the width direction throughout the entire punching process, preventing lateral shifting caused by the shortened constrained length. Based on this, multiple punching operations can be completed sequentially from any end, ensuring uniformity in the punching pattern.

[0019] The positioning platform 3 is spaced apart from the pressure plate 1, and the positioning platform 3 is horizontally rotatable. When the width of the metal sheet is sufficient to complete two rows of interlaced punching patterns, the punching die is biased to one side at the position of the limiting passage to the feeding end. After completing a whole row of punching on one side of the sheet, the sheet can be pulled back to the positioning platform by the traction mechanism 4, and the unpunched side of the sheet can be aligned with the punching die by rotating the positioning platform 180°, repeating the punching action of the punched side to complete the reciprocating bidirectional punching pattern.

[0020] Preferably, both ends of the loading and unloading channel are equipped with telescopic limiting components, with an extended table at the end away from the punching mechanism and a retracted table at the end closer to the punching mechanism. When feeding the sheet, after placing the sheet into the loading and unloading channel, one end of the sheet is placed against the telescopic limiting component. Then, when punching the same accessories using sheets of the same size, the traction mechanism only needs to pick up the sheet from a fixed position on the positioning platform 3, move it a fixed distance to determine the position of the sheet relative to the punching die, and then move it a fixed distance after each punching operation before punching again. The distance moved each time is fixed, which facilitates automated control of the movement of the traction mechanism.

[0021] The traction mechanism 4 includes a magnetic block 41, which is connected to the upper part of a sliding seat 42 via a lifting and releasing mechanism. The sliding seat 42 cooperates with a slide rail 43 located on one side of the positioning platform 3 and the pressure plate 1. The lifting and releasing mechanism can drive the magnetic block 41 to move up and down. During traction, the magnetic block 41 is attracted to the upper surface of the metal sheet 10. By magnetically attracting the upper surface of the metal sheet, and slightly lifting it with the lifting and releasing mechanism, the attracted position of the metal sheet can be slightly lifted away from the placement plane of the sheet, making the traction of the sheet smoother. As the lifting height increases, the area of ​​the sheet being lifted is larger, and the gravity is greater. When it is lifted to a certain height, the sheet will detach from the magnetic block under its own weight. By selecting a magnetic block with appropriate magnetic attraction force, smooth traction in a slightly lifted state and automatic detachment in a higher lifted state can be achieved, thereby improving the freedom of movement of the traction mechanism.

[0022] The lifting and placing mechanism includes a rod 44, one end of which is fixedly connected to the magnetic block 41, and the other end is hinged to the piston rod end of the drive cylinder 45. The rod also engages with a hinge seat in the middle, which is fixed to the upper part of the sliding seat 42. The cylinder body of the drive cylinder 45 is longitudinally fixed to the outer side of the sliding seat 42. The rod 44 and the hinge seat form a lever structure. The extension and retraction of the drive cylinder 45 drives the magnetic block 41 to swing up and down. Besides slightly lifting the sheet from the placement plane by suction, the magnetic block can also press and fix the sheet in place after it has been pulled into position. This ensures that the sheet will not shift during the punching process, preventing positional deviations and ensuring that the sheet will not shift due to being lifted by the die after punching. This guarantees the stability and reliability of the punching process, resulting in higher positional accuracy and further ensuring uniformity of the punching layout.

[0023] Two traction mechanisms 4 are arranged on the same side of the positioning platform 3 and the pressure plate 1, forming a traction and pressing assembly. Both traction mechanisms 4 slide and lift independently. The two sliding seats slide within the same slide rail. If the sliding seat is threadedly engaged with a lead screw, and the lead screw is driven by a motor to rotate, the sliding seat slides relative to the slide rail. In this case, the two sliding seats are driven by two separate lead screws, and the lead screws are also driven to rotate by separate motors. The two lead screws are arranged parallel to each other in the track grooves of the slide rail. The sliding seat is equipped with a clearance structure for the non-contacting lead screws, such as clearance grooves or through holes. Based on the single traction mechanism's functions of adsorption, lifting, traction, and pressure fixing, the cooperation of two traction mechanisms to move the sheet further ensures the accuracy and stability of the traction positioning, guaranteeing accurate and consistent movement distance after each punching.

[0024] For example, taking the positioning platform side as left and the blanking mechanism side as right, during material loading, the right-side traction mechanism acts first, picking up the right end of the sheet and pulling it until the entire sheet is completely on the pressure plate, so that the left end of the sheet corresponds to the blanking position. Then, the left-side traction mechanism presses and fixes the left end of the sheet. Subsequently, the right-side traction mechanism is lifted and moved to the right side of the blanking position in an idle state, pressing the sheet, thus forming left and right pressure fixation relative to the blanking position. The upper die mounting plate of the blanking mechanism is provided with a clearance groove corresponding to the pressure position of the traction mechanism to ensure that the blanking action can be completed under pressure. After completing one blanking, the right-side traction mechanism is lifted first to separate from the sheet, and then the left-side traction mechanism is slightly lifted to bring the sheet away from the pressure plate at a certain height, and then it slides to the left by one pattern spacing. After sliding into place, the right-side traction mechanism presses the sheet first, and then the left-side traction mechanism is lowered and pressed, and then the second blanking is performed, and so on to complete all blanking times on the same side. Throughout the process, one mechanism acts as the primary traction unit, while the other acts as the primary fixing unit. Once the position is determined, both mechanisms work simultaneously to secure the sheet. The primary traction mechanism avoids frequent separation from the sheet, preventing displacement. The primary fixing mechanism also avoids frequent movement, ensuring that pressure is applied to the same position after each sheet movement for better fixation. Furthermore, to prevent potential displacement of the sheet during lifting and lowering relative to the bearing plate, after each traction, the right-side traction mechanism 1 is first used to press it down, and then the lifted end is lowered and pressed down again, resulting in higher positional accuracy of the sheet.

[0025] Two traction and pressing engagement groups are symmetrically arranged on both sides of the positioning platform 3 and the pressure plate 1. The two corresponding traction mechanisms 4 between the two traction and pressing engagement groups slide and lift synchronously. When pulled by a single traction mechanism, the magnetic block can be attracted or pressed on the central axis of the sheet. When symmetrically arranged, the magnetic block can be attracted or pressed on the two side edges of the sheet. During traction, the entire strip area of ​​the sheet in the width direction can be lifted to further improve the accuracy and stability of the traction process.

[0026] The lower side of the magnetic block 41 is provided with a flexible layer. When the lower side of the magnetic block 41 is horizontal, the distance between the lower side of the flexible layer and the plane containing the upper surface of the pressure plate 1 is greater than the thickness of the metal sheet 10. By providing the flexible layer, a compressible deformation range exists between the sheet and the magnetic block when the sheet is adsorbed. When the sheet is pulled, the symmetrical magnetic blocks on both sides simultaneously adsorb and lift the sheet, stopping when the lower side of the magnetic block is horizontal and maintaining the adsorption state. Then, the sheet is pulled in this state, ensuring that the largest magnetic adsorption area is maintained throughout the pulling process to obtain the maximum magnetic force and improve the stability of the pulling process. When pressed, the magnetic blocks on both sides are simultaneously pressed down to their limits. At this point, the lower sides of the magnetic blocks tilt outwards, and the inner side of the flexible layer is compressed. This generates longitudinal pressure at the pressure point and also creates opposing static friction forces along the width of the sheet, thus creating tension on the sheet surface to ensure flatness and improve die-cutting quality. Additionally, the flexible layer acts as a buffer, preventing direct contact between the sheet and the magnetic blocks and thus avoiding indentations. Furthermore, the presence of the flexible layer, combined with the simultaneous upward swing of the magnetic blocks, facilitates the separation of the magnetic blocks from the sheet and prevents the sheet from being lifted too high off the pressure plate.

[0027] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An automatic layout and precision blanking device for flat fork mounting plate, characterized in that: The punching mechanism has a limiting member (2) on its pressure plate (1), and a limiting channel is formed between the two rows of limiting members (2), so that when the metal sheet (10) is placed on the pressure plate (1), it can only slide along the limiting channel; The feeding end of the limiting channel corresponds to the punching die. The punching mechanism is provided with a positioning platform (3) on the side near the feeding end of the limiting channel, which can align the metal sheet (10) placed on it with the feeding end of the limiting channel. A traction mechanism (4) is provided on the same side of the positioning platform (3) and the pressure plate (1), which can attract and drive the metal sheet (10) from the positioning platform (3) into the limiting channel and slide along the limiting channel to a fixed length.

2. The automatic layout and precision blanking device for flat fork mounting plate of claim 1, wherein: The platform (3) is flush with the upper surface of the pressure plate (1), and the platform (3) is also provided with limiting parts (2). The two rows of limiting parts (2) form a loading and unloading channel aligned with the limiting channel.

3. The automatic layout and precision blanking apparatus for flat fork mounting plate according to claim 2, characterized in that: The positioning platform (3) is spaced apart from the pressure plate (1), and the positioning platform (3) is horizontally rotatable.

4. The automatic layout and precision blanking apparatus for flat fork mounting plate according to claim 2, characterized in that: The traction mechanism (4) includes a magnetic block (41), which is connected to the upper part of the sliding seat (42) through a lifting mechanism. The sliding seat (42) cooperates with the slide rail (43) set on one side of the positioning platform (3) and the pressure plate (1). The lifting mechanism can drive the magnetic block (41) to move up and down. When traction is performed, the magnetic block (41) is attracted to the upper surface of the metal sheet (10).

5. The automatic layout and precision blanking apparatus for flat fork mounting plate according to claim 4, characterized in that: The lifting and placing mechanism includes a rod (44), one end of which is fixedly connected to the magnetic block (41), and the other end is hinged to the piston rod end of the drive cylinder (45), and the middle part is engaged with the hinge seat. The hinge seat is fixed to the upper part of the sliding seat (42), and the cylinder body of the drive cylinder (45) is longitudinally fixed to the outer side of the sliding seat (42).

6. The automatic layout and precision blanking apparatus for flat fork mounting plate according to claim 5, characterized in that: The positioning platform (3) and the pressure plate (1) are provided with two traction mechanisms (4) on the same side to form a traction and pressing assembly. Both traction mechanisms (4) can slide and lift independently.

7. The automatic layout and precision blanking apparatus for flat fork mounting plate according to claim 6, characterized in that: The positioning platform (3) and the pressure plate (1) are symmetrically provided with two traction and pressing groups on both sides, and the two traction mechanisms (4) corresponding to each other between the two traction and pressing groups slide and lift synchronously.

8. The automatic layout and precision blanking apparatus for flat fork mounting plate according to claim 7, characterized in that: The lower side of the magnetic block (41) is provided with a flexible layer. When the lower side of the magnetic block (41) is horizontal, the distance between the lower side of the flexible layer and the plane on the upper surface of the pressure plate (1) is greater than the thickness of the metal sheet (10).

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