Angle-adjustable bending device for shell sheet metal machining

Abstract

The utility model discloses an angle-adjustable bending device for shell sheet metal machining, which belongs to the technical field of sheet metal bending, and is characterized by comprising a workbench, the top of the workbench is fixedly connected with a bending mechanism, the front side of the bending mechanism is fixedly connected with an adjusting mechanism, and the adjusting mechanism is fixedly connected with the bending mechanism. The bending mechanism placing seat provides a stable placing platform for a sheet metal part, the electric cylinder drives the lower pressing plate to apply pressure to the sheet metal part, the pressure sensor is installed on the inner side of the bottom of the lower pressing plate, the pressure condition can be monitored in real time, the bending mechanism can be controlled in cooperation with the PLC, and the angle of the male die can be changed through rotation of the rotating rod. According to the bending machine, bending at different angles is possible, two servo motors in the adjusting mechanism can provide power for rotation of the rotating rod, the front side detection end of the angle sensor is fixedly connected to the rear side of the rotating rod, the rotating angle of the rotating rod can be accurately detected in real time, and angle information is fed back to the PLC.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending technology, and in particular to a bending device for processing sheet metal shells with an adjustable angle. Background Technology

[0002] In modern manufacturing, sheet metal housings are widely used in many fields such as electronic equipment, automobile manufacturing, machinery manufacturing, and electrical instruments. For example, the chassis housings of electronic equipment, the body panels of automobiles, and the housings of electrical appliances all need to be formed through sheet metal processing technology.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, existing bending devices for sheet metal processing lack a structure for adjusting the bending angle, resulting in the ability to bend sheet metal parts at fixed angles. When it is necessary to reduce or increase the angle, the mold needs to be changed to achieve the angle change, which significantly increases the time cost in the production process and reduces production efficiency.

[0004] To address this, a bending device for sheet metal processing of housings with adjustable angles is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable-angle bending device for sheet metal processing of outer shells. This device solves the problem that existing sheet metal bending lacks a structure for adjusting the bending angle, resulting in the inability to bend sheet metal parts at a fixed angle. When the angle needs to be reduced or increased, the mold needs to be changed to achieve the angle change, which greatly increases the time cost in the production process and reduces production efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bending device for processing sheet metal shells with adjustable angle, comprising a worktable, a bending mechanism fixedly connected to the top of the worktable, and an adjustment mechanism fixedly connected to the front side of the bending mechanism;

[0007] The adjustment mechanism includes two servo motors, an angle sensor, and a PLC controller. The servo motors are installed on the front side of the bending mechanism, the angle sensor is installed on the rear side of the bending mechanism, and the PLC controller is installed on the surface of the rear side of the bending mechanism.

[0008] Preferably, the bending mechanism includes a placement seat, a support plate, an electric cylinder, a lower pressure plate, a pressure sensor, a limiting plate, a rotating rod, a punch, and a connecting shaft, wherein the placement seat is fixedly connected to the top of the worktable.

[0009] Preferably, the support plate is fixedly connected to the rear side of the top of the workbench, the PLC controller is installed on the surface of the rear side of the support plate, the electric cylinder is installed on the top of the inner side of the support plate, the lower pressing plate is fixedly connected to the telescopic end of the bottom of the electric cylinder, the pressure sensor is installed on the inner side of the bottom of the lower pressing plate, the limiting plates are fixedly connected to the front side and the rear side of the two sides of the placing seat, and the angle sensor is installed on the rear side of the rear limiting plate.

[0010] Preferably, the detection end of the front side of the angle sensor is fixedly connected to the rear side of the rotating rod, the rotating rod is rotatably connected to the rear side of the limiting plate, the male die is fixedly connected to the surface of the rotating rod, the connecting shaft is connected to the front side of the rotating rod through a key, the servo motor is installed on the front side of the front limiting plate, and the output end of the servo motor penetrates through the limiting plate and is fixedly connected to the front side of the connecting shaft.

[0011] Preferably, the surface of the top of the placing seat is fixedly connected with a protective sleeve, and the surface of the protective sleeve is engraved with anti-skid lines.

[0012] Preferably, the bottom of the support column is fixedly connected with a shock pad.

[0013] Preferably, the surface of the bottom of the lower pressing plate is fixedly connected with a buffer pad, and the surface of the buffer pad is engraved with anti-skid lines.

[0014] Preferably, the inner side of the support plate is fixedly connected with a limiting column, and the rear side of the lower pressing plate is slidably connected to the surface of the limiting column.

[0015] Compared with the prior art, the bending mechanism placing seat of the present application has the following beneficial effects:

[0016] 1. The bending mechanism placing seat of the present application provides a stable placing platform for sheet metal parts, the electric cylinder drives the lower pressing plate to exert pressure on the sheet metal parts, the pressure sensor is installed on the inner side of the bottom of the lower pressing plate, can monitor the pressure in real time, cooperates with the PLC controller to realize control of the bending mechanism, and the rotation of the rotating rod can realize change of the angle of the male die, thereby providing the possibility of realizing bending at different angles.

[0017] 2. The two servo motors in the adjusting mechanism of the present application can provide power for the rotation of the rotating rod, the front side detection end of the angle sensor is fixedly connected to the rear side of the rotating rod, can accurately detect the rotation angle of the rotating rod in real time, and feeds back the angle information to the PLC controller, the PLC controller compares the feedback angle information with the preset target angle, then accurately controls the operation of the servo motor, so as to realize accurate adjustment of the angle of the male die, and meet the diversified bending angle requirements of different sheet metal parts. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The overall structural diagram of the angle-adjustable shell sheet metal machining bending device of the utility model is shown in the figure.

[0019] Figure 2 The structural schematic diagram of the adjusting mechanism of the utility model is shown in the figure.

[0020] Figure 3 The structural schematic diagram of the rotating rod of the utility model is shown in the figure.

[0021] Figure 4 The structural schematic diagram of the connecting shaft of the utility model is shown in the figure.

[0022] Figure 5 The structural schematic diagram of the electric cylinder of the utility model is shown in the figure.

[0023] In the figure, 1, workbench; 2, bending mechanism; 21, placing seat; 22, supporting plate; 23, electric cylinder; 24, pressing plate; 25, pressure sensor; 26, limiting plate; 27, rotating rod; 28, male die; 29, connecting shaft; 3, adjusting mechanism; 31, servo motor; 32, angle sensor; 33, PLC controller; 4, protective sleeve; 5, supporting column; 6, shock pad; 7, buffer pad; 8, limiting column. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides technical schemes:

[0026] An angle-adjustable shell sheet metal machining bending device, comprising a workbench 1, the top of the sheet metal bending workbench 1 is fixedly connected with a bending mechanism 2, the front side of the sheet metal bending bending mechanism 2 is fixedly connected with an adjusting mechanism 3.

[0027] The sheet metal bending adjusting mechanism 3 comprises two servo motors 31, an angle sensor 32 and a PLC controller 33, the sheet metal bending servo motor 31 is installed at the front side of the bending mechanism 2, the sheet metal bending angle sensor 32 is installed at the rear side of the bending mechanism 2, and the sheet metal bending PLC controller 33 is installed on the surface at the rear side of the bending mechanism 2.

[0028] In the embodiment, the workbench 1 can support and limit the bending mechanism 2, the servo motor 31 serves as the power source for the rotation of the rotating rod 27, has high-precision position control and speed control capabilities, can accurately control the rotation angle and rotation speed according to the instructions of the PLC controller 33, thereby realizing accurate adjustment of the angle of the convex die 28, meeting the bending angle requirements of different sheet metal parts, the angle sensor 32 can monitor the rotation angle of the rotating rod 27 in real time, the angle sensor 32 can convert the rotation angle signal into an electrical signal and feed it back to the PLC controller 33, so that the PLC controller 33 can grasp the angle position of the convex die 28 in real time, thereby realizing accurate control and feedback adjustment of the angle adjustment process, ensuring the accuracy and precision of the bending angle, the PLC controller 33 receives the angle signal fed back by the angle sensor 32 and the pressure signal fed back by the pressure sensor 25, compares and analyzes the signals with the preset processing parameters, and then issues control instructions according to the analysis results to accurately control the rotation angle of the servo motor 31 and the output pressure of the electric cylinder 23, realizing automatic control and accurate adjustment of the bending process.

[0029] Specifically, as shown in Figure 3 , Figure 4 , Figure 5 , the sheet metal bending mechanism 2 comprises a placing seat 21, a support plate 22, an electric cylinder 23, a lower pressing plate 24, a pressure sensor 25, a limiting plate 26, a rotating rod 27, a convex die 28 and a connecting shaft 29, and the sheet metal bending placing seat 21 is fixedly connected to the top of the workbench 1.

[0030] Specifically, as shown in Figure 3 , Figure 4 , Figure 5 , the sheet metal bending support plate 22 is fixedly connected to the rear side of the top of the workbench 1, the sheet metal bending PLC controller 33 is installed on the surface of the rear side of the support plate 22, the sheet metal bending electric cylinder 23 is installed on the top of the inner side of the support plate 22, the sheet metal bending lower pressing plate 24 is fixedly connected to the telescopic end of the bottom of the electric cylinder 23, the sheet metal bending pressure sensor 25 is installed on the inner side of the bottom of the lower pressing plate 24, the sheet metal bending limiting plate 26 is fixedly connected to the front side and the rear side of the two sides of the placing seat 21, and the sheet metal bending angle sensor 32 is installed on the rear side of the rear limiting plate 26.

[0031] Specifically, as shown in Figure 3 , Figure 4 , Figure 5As shown in the figure, the detection end of the front side of the sheet metal bending angle sensor 32 is fixedly connected to the rear side of the rotating rod 27, the sheet metal bending rotating rod 27 is rotatably connected to the rear side of the limiting plate 26, the sheet metal bending convex mold 28 is fixedly connected to the surface of the rotating rod 27, the sheet metal bending connecting shaft 29 is connected to the front side of the rotating rod 27 through a flat key, the sheet metal bending servo motor 31 is installed on the front side of the front limiting plate 26, and the output end of the sheet metal bending servo motor 31 penetrates through the limiting plate 26 and is fixedly connected to the front side of the connecting shaft 29.

[0032] In this embodiment: by setting the placing seat 21 for placing the sheet metal part, a stable bearing surface is provided for the bending processing of the sheet metal part, the support plate 22 can support and limit the electric cylinder 23, the PLC controller 33 and the pressing plate 24, the electric cylinder 23 drives the pressing plate 24 to move up and down through the telescopic end at the bottom, providing the required pressure for the bending of the sheet metal part, the pressing plate 24 directly contacts and applies pressure to the sheet metal part, the pressure sensor 25 monitors the pressure applied to the sheet metal part in real time during the bending process, and converts the pressure signal into an electrical signal and transmits it to the PLC controller 33, the limiting plate 26 can support and limit the servo motor 31, the angle sensor 32 and the rotating rod 27, the rotating rod 27 can drive the convex mold 28 to change the angle, the convex mold 28 directly contacts the sheet metal part during the bending process and applies bending force to the sheet metal part, causing plastic deformation of the sheet metal part, thereby realizing bending processing, the connecting shaft 29 is connected to the output end of the servo motor 31, reliably transmitting the power of the servo motor 31 to the rotating rod 27, ensuring that the rotating rod 27 can accurately rotate according to the control instructions of the servo motor 31, and realizing accurate adjustment of the angle of the convex mold 28.

[0033] Specifically, as shown in the figure, Figure 1 The surface of the sheet metal bending protective sleeve 4 is engraved with anti-skid lines.

[0034] Specifically, as shown in the figure, Figure 1 The bottom of the sheet metal bending support column 5 is fixedly connected with a shock pad 6.

[0035] In this embodiment: by setting the protective sleeve 4, the surface of the sheet metal part can be effectively protected from being scratched and worn during placement and processing, by setting the anti-skid lines, the friction between the sheet metal part and the device is increased, preventing the sheet metal part from sliding during processing, by setting the support column 5, the support column 5 supports the workbench 1, evenly distributes the weight of the workbench 1 and the entire device to the ground, and increases the stability of the device, by setting the shock pad 6, the shock pad 6 can effectively absorb the vibration and impact force generated during the operation of the device, reducing the impact of vibration on the surrounding environment.

[0036] Specifically, as shown in the figure, Figure 5As shown, the surface of the bottom of the lower pressing plate 24 is fixedly connected with a buffer pad 7, and the surface of the bent buffer pad 7 is engraved with anti-skid lines.

[0037] Specifically, as shown in the figure, the inner side of the support plate 22 is fixedly connected with a limiting column 8, and the rear side of the bent lower pressing plate 24 is slidingly connected to the surface of the limiting column 8. Figure 5

[0038] In this embodiment: by setting the buffer pad 7, which directly contacts the sheet metal part during the bending process, a buffering effect can be achieved to protect the surface of the sheet metal part from being pressed or scratched by the lower pressing plate 24. By setting the anti-skid lines, the friction between the sheet metal part and the lower pressing plate 24 is increased to prevent the sheet metal part from sliding during the pressing process. By setting the limiting column 8, the up-and-down movement of the lower pressing plate 24 is guided to ensure that the lower pressing plate 24 can move stably along the vertical direction.

[0039] Working principle: First, the user places the sheet metal part that needs to be bent on the top of the placing seat 21. Next, the user sets the required accurate angle for this bending operation by operating the PLC controller 33. When the angle is set, the user sends a command to start the electric cylinder 23 through the PLC controller 33. The electric cylinder 23 drives the lower pressing plate 24 to slide downward along the limiting column 8 to clamp the sheet metal part placed on the placing seat 21. When the lower pressing plate 24 contacts the sheet metal part, the pressure sensor 25 installed on the inner side of the bottom of the lower pressing plate 24 will immediately sense the pressure change and quickly transmit the signal to the PLC controller 33. After receiving the pressure signal, the PLC controller 33 controls the servo motor 31 to start immediately. The servo motor 31 drives the connecting shaft 29 to rotate, and the connecting shaft 29 is tightly connected to the rotating rod 27 through a flat key, so that the rotating rod 27 is driven to rotate synchronously when the connecting shaft 29 rotates. At the same time, the male die 28 also moves synchronously when the rotating rod 27 rotates. The male die 28 exerts a bending force on both sides of the sheet metal part during the movement, causing the sheet metal part to gradually deform plastically, and the bending operation is completed. During this process, the angle sensor 32 detects the angle of rotation of the rotating rod 27 in real time and transmits the accurate angle data to the PLC controller 33 in real time. When the rotating rod 27 rotates to the angle set by the user, the PLC controller 33 quickly responds to control the servo motor 31 to reverse, so that it drives the male die 28 to reset. When the male die 28 is reset, the angle sensor 32 transmits the signal to the PLC controller 33 again. After receiving the reset signal, the PLC controller 33 controls the electric cylinder 23 to drive the lower pressing plate 24 to move upward for resetting. At this time, the lower pressing plate 24 rises along the limiting column 8 until it returns to the initial position. Finally, the user takes out the bent sheet metal part and places the next sheet metal part that needs to be bent, and repeats the above operation.

[0040] ​The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bending device for sheet metal processing of an adjustable-angle housing, comprising a worktable (1), characterized in that: A bending mechanism (2) is fixedly connected to the top of the workbench (1), and an adjustment mechanism (3) is fixedly connected to the front side of the bending mechanism (2). The adjustment mechanism (3) includes two servo motors (31), an angle sensor (32), and a PLC controller (33). The servo motors (31) are installed on the front side of the bending mechanism (2), the angle sensor (32) is installed on the rear side of the bending mechanism (2), and the PLC controller (33) is installed on the surface of the rear side of the bending mechanism (2).

2. The adjustable-angle bending device for sheet metal processing of outer shells according to claim 1, characterized in that: The bending mechanism (2) includes a placement seat (21), a support plate (22), an electric cylinder (23), a lower pressure plate (24), a pressure sensor (25), a limiting plate (26), a rotating rod (27), a punch (28), and a connecting shaft (29). The placement seat (21) is fixedly connected to the top of the workbench (1).

3. The adjustable-angle bending device for sheet metal processing of outer shells according to claim 2, characterized in that: The support plate (22) is fixedly connected to the rear side of the top of the workbench (1). The PLC controller (33) is installed on the surface of the rear side of the support plate (22). The electric cylinder (23) is installed on the top of the inner side of the support plate (22). The lower pressure plate (24) is fixedly connected to the telescopic end of the bottom of the electric cylinder (23). The pressure sensor (25) is installed on the inner side of the bottom of the lower pressure plate (24). The limiting plate (26) is fixedly connected to the front and rear sides of both sides of the placement seat (21). The angle sensor (32) is installed on the rear side of the rear limiting plate (26).

4. The adjustable-angle bending device for sheet metal processing of outer shells according to claim 2, characterized in that: The detection end of the angle sensor (32) is fixedly connected to the rear side of the rotating rod (27). The rotating rod (27) is rotatably connected to the rear side of the limiting plate (26). The punch (28) is fixedly connected to the surface of the rotating rod (27). The connecting shaft (29) is connected to the front side of the rotating rod (27) by a flat key. The servo motor (31) is installed on the front side of the front limiting plate (26). The output end of the servo motor (31) passes through the limiting plate (26) and is fixedly connected to the front side of the connecting shaft (29).

5. The adjustable-angle bending device for sheet metal processing of outer shells according to claim 2, characterized in that: A protective sleeve (4) is fixedly connected to the top surface of the placement base (21), and the surface of the protective sleeve (4) is engraved with anti-slip texture.

6. The adjustable-angle bending device for sheet metal processing of outer shells according to claim 1, characterized in that: A support column (5) is fixedly connected to the chamfer at the bottom of the workbench (1), and a shock-absorbing pad (6) is fixedly connected to the bottom of the support column (5).

7. The adjustable-angle bending device for sheet metal processing of outer shells according to claim 2, characterized in that: A buffer pad (7) is fixedly connected to the bottom surface of the lower pressure plate (24), and the surface of the buffer pad (7) is engraved with anti-slip texture.

8. The adjustable-angle bending device for sheet metal processing of outer shells according to claim 2, characterized in that: The inner side of the support plate (22) is fixedly connected to a limiting post (8), and the rear side of the lower pressure plate (24) is slidably connected to the surface of the limiting post (8).

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