A centering mechanism for a metal door panel forming press

Abstract

The utility model discloses a kind of metal door panel is in the center of corner forming machine on forming press plate positioning mechanism, belong to sheet metal processing equipment technical field. Including rack, material pressing device is equipped in the upper portion of rack, forming press plate positioning device is driven and connected below material pressing device, two guide devices are symmetrically set in the front end of rack, triangular forming mould is equipped below forming press plate positioning device, the forming press plate positioning device includes forming press plate and the adjustable positioning plate of both sides thereof. The utility model drives forming press plate positioning device to go down along guide device by material pressing device, workpiece hem is automatically tightened and is close to two sides of triangular mould in pressing process using two sides positioning plate, to realize workpiece automatic centering and accurate positioning. The mechanism structure is reasonable, positioning is accurate and reliable, effectively solve the deviation, wrinkle and deformation problem in workpiece corner forming, significantly improve processing quality and production efficiency, especially suitable for batch sheet metal workpiece high-precision machining.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing equipment technology, specifically a forming pressure plate positioning mechanism for centering metal door panels on a corner forming machine. Background Technology

[0002] Currently, corner forming machines are favored by many users in the sheet metal industry. However, a drawback of corner forming is that metal door panels are not easily centered on these machines. The typical operation involves the operator placing the two inner folded edges of the workpiece's corners close to the edge of the lower forming mold, relying on their hands for control. This is especially problematic for smaller workpieces, where manual, precise positioning is difficult, affecting processing quality and efficiency. Therefore, there is an urgent need for an automatic and precise positioning mechanism to improve forming accuracy and product consistency. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a forming plate positioning mechanism with reasonable structure, accurate positioning and high degree of automation, which is suitable for centering metal door panels on corner forming machines.

[0004] The technical solution of this utility model is implemented as follows: A forming pressure plate positioning mechanism for centering a metal door panel on a corner forming machine includes a frame. A pressing device is provided above the frame, and a forming pressure plate positioning device that can be driven by the pressing device to move vertically is provided below the pressing device. Two guide devices are symmetrically provided at the front end of the frame to guide the movement trajectory of the forming pressure plate positioning device. A triangular forming mold is provided below the forming pressure plate positioning device, and the triangular forming mold is fixed to the bottom of the frame by internal hexagonal screws E. The pressing device and the forming pressure plate positioning device are controlled by the equipment's electrical automation system to achieve automated operation cycle. Preferably, the pressing device includes a pressing cylinder, which is fixedly connected to the upper plate of the frame by an internal hexagonal screw G; the piston rod end of the pressing cylinder is connected to a pressing rod, and the lower end of the pressing rod is fixedly connected to a connecting block; Preferably, the forming plate positioning device includes a forming plate, and positioning plates are symmetrically arranged on both sides of the forming plate. Each positioning plate is adjustablely installed on the forming plate by means of hexagonal screws A; the upper part of the forming plate is fixedly connected to the connecting block of the pressing device by means of hexagonal screws B. Preferably, the working surface of the positioning plate is parallel to the corresponding side surface of the triangular forming mold, forming a positioning and clamping surface for clamping the workpiece folding edge; Preferably, the guiding device includes a fixed support, a guide support, and a guide rod. The fixed support is fixed to the forming plate by a hexagonal socket screw D. The guide rod is vertically installed on the fixed support by a hexagonal socket screw C. The guide support is fixed to the upper plate of the frame by a hexagonal socket screw F. A self-lubricating bearing is embedded in the hole of the guide support, and the guide rod passes through the self-lubricating bearing and can slide up and down. The guide supports of the two guiding devices are symmetrically arranged on both sides of the longitudinal centerline of the frame. Preferably, the electrical automation system of the equipment includes a PLC controller, a foot switch, and a hydraulic control system; the foot switch is used to send a start signal to the PLC controller, and the PLC controller controls the action sequence and pressure maintenance of the pressing cylinder.

[0005] The beneficial effects of this utility model are: 1. High positioning accuracy: Through symmetrically arranged guide devices and adjustable side positioning plates, the workpiece fold edge is forced to align with the mold, achieving reliable mechanical centering positioning, completely eliminating human error, and ensuring good consistency in forming quality.

[0006] 2. High degree of automation: The entire positioning and clamping process is completed automatically by the electrical system. Operators only need to place the workpiece and step on the switch, which greatly reduces labor intensity and skill requirements and improves production efficiency.

[0007] 3. Good versatility and flexibility: Both the forming plate and the positioning plate can be replaced or adjusted, allowing one set of mechanisms to adapt to a variety of workpieces within a certain size range, reducing the user's tooling investment costs.

[0008] 4. Reliable performance and easy maintenance: It adopts self-lubricating bearings, standard hydraulic components and modular design, which makes the mechanism durable, has a low failure rate and is easy to maintain.

[0009] This invention utilizes a pressing device to drive a forming platen positioning device downwards along a guide device. During the pressing process, the positioning plates on both sides automatically tighten and align the workpiece edges with the sides of the triangular mold, thus achieving automatic centering and precise positioning of the workpiece. This mechanism has a reasonable structure, accurate and reliable positioning, and effectively solves the problems of offset, wrinkling, and deformation in the forming of workpiece corners, significantly improving processing quality and production efficiency. It is particularly suitable for high-precision processing of batch sheet metal workpieces. Attached Figure Description

[0010] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This utility model Figure 1 Sectional view along axis AA; Figure 4 This utility model Figure 1 BB-direction sectional view; Figure 5 This utility model Figure 2 CC-direction sectional view; Figure 6 This utility model Figure 3 FF section view; Figure 7 This is a schematic diagram of the metal door panel workpiece of this utility model.

[0011] Explanation of the labels in the diagram: 1-Forming pressure plate positioning device, 101-Forming pressure plate, 102-Positioning plate, 2-Hex socket screw A, 6-Guiding device, 601-Fixed support, 602-Guiding support, 603-Guiding rod, 604-Self-lubricating bearing, 9-Hex socket screw B, 10-Hex socket screw C, 11-Hex socket screw D, 12-Frame, 13-Workpiece, 14-Triangular forming mold, 15-Hex socket screw E, 16-Pressure device, 1601-Pressure cylinder, 1602-Pressure rod, 1603-Connecting block, 18-Hex socket screw F, 19-Hex socket screw G. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0014] See attached document Figure 1-7A forming plate positioning mechanism for centering a metal door panel on a corner forming machine includes a frame 12. A pressing device 16 is located above the frame 12, and a forming plate positioning device 1, driven vertically by the pressing device 16, is located below it. Two guide devices 6 are symmetrically arranged at the front end of the frame 12 to guide the movement trajectory of the forming plate positioning device 1. A triangular forming mold 14 is located below the forming plate positioning device 1, and the triangular forming mold 14 is fixed to the bottom of the frame 12 by hexagonal socket head cap screws E15. The pressing device 16 and the forming plate positioning device 1 are controlled by the equipment's electrical automation system to achieve automated operation cycles. The pressing device 16 includes a pressing cylinder 1601, which is fixedly connected to the upper plate of the frame 12 by an internal hexagon screw G19; the piston rod end of the pressing cylinder 1601 is connected to the pressing rod 1602, and the lower end of the pressing rod 1602 is fixedly connected to the connecting block 1603. The forming plate positioning device 1 includes a forming plate 101, with positioning plates 102 symmetrically arranged on both sides of the forming plate 101. Each positioning plate 102 is adjustablely mounted on the forming plate 101 by means of hexagon socket screws A2. The position of the positioning plate 102 relative to the forming plate 101 can be adjusted by means of hexagon socket screws A2 to accommodate the folding width of metal door panel workpieces of different sizes, thereby enhancing the versatility of the mechanism. The upper part of the forming plate 101 is fixedly connected to the connecting block 1603 of the pressing device 16 by means of hexagon socket screws B9. The working surface of the positioning plate 102 is parallel to the corresponding side surface of the triangular forming mold 14, forming a positioning and clamping surface for clamping the folded edge of the workpiece 13. The guiding device 6 includes a fixed support 601, a guide support 602, and a guide rod 603. The fixed support 601 is fixed to the forming plate 101 by a hexagonal socket screw D11. The guide rod 603 is vertically installed on the fixed support 601 by a hexagonal socket screw C10. The guide support 602 is fixed to the upper plate of the frame 12 by a hexagonal socket screw F18. A self-lubricating bearing 604 is embedded in the hole of the guide support 602, and the guide rod 603 passes through the self-lubricating bearing 604 and can slide up and down. The application of the self-lubricating bearing 604 ensures the smooth movement of the guide rod 603 under high-speed and high-frequency operation, without the need for additional lubrication, reducing maintenance costs and avoiding oil contamination of the workpiece. The guide supports 602 of the two guiding devices 6 are symmetrically arranged on both sides of the longitudinal center line of the frame 12. The electrical automation system of the equipment includes a PLC controller, a foot switch, and a hydraulic control system. The foot switch sends a start signal to the PLC controller, which controls the sequence of motion and pressure maintenance of the pressure cylinder 1601. By precisely controlling the pressure and stroke of the pressure cylinder 1601 through the electrical automation system, optimal clamping force can be set for workpieces of different materials and thicknesses, ensuring reliable positioning while preventing workpiece deformation due to excessive pressure.

[0015] The forming plate positioning mechanism of this utility model is installed on the corner forming machine. The appropriate forming plate and triangular mold are selected according to the workpiece material, plate thickness, size, and other parameters. During installation, the forming plate is aligned with the center of the triangular mold, and all bolts are tightened. During operation, the workpiece is placed on the triangular mold, the foot switch is pressed, and the PLC controller in the electrical automation system receives the signal and issues instructions according to the preset program.

[0016] First, the hydraulic system drives the piston rod of the pressure cylinder 1601 downwards. The piston rod, through the pressure rod 1602 and the connecting block 1603, pushes the entire forming plate positioning device 1 downwards smoothly along the guide rod 603 of the guide device 6. During this process, the inclined or vertical surfaces of the positioning plates 102 installed on both sides of the forming plate 101 first contact the inner side of the folded edge of the workpiece 13, and as it continues to descend, pushes the folded edge of the workpiece outwards until it is completely in contact with the two working surfaces of the triangular forming mold 14, thereby achieving precise positioning and centering of the workpiece on the mold. At this point, the workpiece has been initially corrected and positioned. Subsequently, the pressure cylinder 1601 continues to apply the rated clamping force, firmly pressing the workpiece onto the triangular forming mold 14 to prevent it from shifting during subsequent forming processes. The PLC controller monitors the oil pressure or piston rod position, maintains the pressure after reaching the set value, and sends a signal to allow the corner forming machine to proceed to the next corner rounding forming action. After molding is completed, the PLC controller controls the return stroke of the pressing cylinder 1601 and drives the piston rod to rise. The molding plate positioning device 1 is accurately reset under the guidance of the guide device 6, and one work cycle is completed.

[0017] This utility model has a simple structure, is easy to maintain, and has high positioning accuracy. It is suitable for processing metal door panels of various specifications and has wide applicability and good economic benefits.

[0018] Finally, it should be noted that the above examples are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above examples, those skilled in the art should understand that various changes or adjustments can be made to the above embodiments in detail and form without departing from the spirit and scope of this utility model, without deviating from the scope defined by the claims of this utility model.

Claims

1. A centering forming press plate positioning mechanism for a metal door panel on an angle forming machine, comprising a frame (12), characterized in that: A pressing device (16) is provided above the frame (12), and a forming plate positioning device (1) that can be driven by the pressing device (16) to move vertically is provided below the pressing device (16). Two guide devices (6) are symmetrically provided at the front end of the frame (12) to guide the movement trajectory of the forming plate positioning device (1). A triangular forming mold (14) is provided below the forming plate positioning device (1), and the triangular forming mold (14) is fixed to the bottom of the frame (12) by internal hexagonal screws E (15). The pressing device (16) and the forming plate positioning device (1) are controlled by the equipment electrical automation system to realize automated operation cycle.

2. The centering forming press plate positioning mechanism for a metal door panel on a corner forming machine of claim 1, wherein: The pressing device (16) includes a pressing cylinder (1601), which is fixedly connected to the upper plate of the frame (12) by an internal hexagon screw G (19); the piston rod end of the pressing cylinder (1601) is connected to the pressing rod (1602), and the lower end of the pressing rod (1602) is fixedly connected to the connecting block (1603).

3. The centering forming platen positioning mechanism for a metal door panel on a corner forming machine of claim 1, wherein: The forming plate positioning device (1) includes a forming plate (101), and positioning plates (102) are symmetrically arranged on both sides of the forming plate (101). Each positioning plate (102) is adjustablely installed on the forming plate (101) by internal hexagon screws A (2). The upper part of the forming plate (101) is fixedly connected to the connecting block (1603) of the pressing device (16) by internal hexagon screws B (9).

4. The centering forming platen positioning mechanism for a metal door panel on a corner forming machine of claim 3, wherein: The working surface of the positioning plate (102) is parallel to the corresponding side of the triangular forming mold (14), forming a positioning clamping surface for clamping the folded edge of the workpiece (13).

5. The centering forming press plate positioning mechanism for a metal door panel on a corner forming machine according to claim 1 or 3, wherein: The guiding device (6) includes a fixed support (601), a guide support (602), and a guide rod (603). The fixed support (601) is fixed to the forming plate (101) by an internal hexagon screw D (11). The guide rod (603) is vertically installed on the fixed support (601) by an internal hexagon screw C (10). The guide support (602) is fixed to the upper plate of the frame (12) by an internal hexagon screw F (18). A self-lubricating bearing (604) is embedded in the hole of the guide support (602). The guide rod (603) passes through the self-lubricating bearing (604) and can slide up and down. The guide supports (602) of the two guiding devices (6) are symmetrically arranged on both sides of the longitudinal center line of the frame (12).

6. A centering forming platen positioning mechanism for a metal door panel on a corner forming machine as defined in claim 2 wherein: The electrical automation system of the equipment includes a PLC controller, a foot switch, and a hydraulic control system; the foot switch is used to send a start signal to the PLC controller, and the PLC controller controls the action sequence and pressure maintenance of the pressing cylinder (1601).

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