Protective structure of bending machine

Abstract

The utility model discloses a protective structure of a bending machine, which comprises a base, a support frame is arranged at the upper end of the base, two symmetrically arranged telescopic cylinders are arranged on the support frame in a penetrating manner, the tail ends of the telescopic ends of the two telescopic cylinders are jointly provided with a connecting plate, and a bending block is arranged at the lower end of the connecting plate. A bending groove matched with the bending block is formed in the upper end of the base, a cavity is formed in the base, a through groove is formed between the cavity and the base, a protection frame is arranged in the through groove in a penetrating mode, and a moving mechanism used for moving the protection frame is arranged in the cavity. And a driving mechanism for driving the moving mechanism is arranged on the supporting frame. The two moving blocks move to push the protective frame to move, the protective frame moves out through the penetrating groove to shield the protective frame, and therefore the protective effect is achieved, and the situation that a bent piece bounces and hurts workers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a protective structure of a bending machine. Background Art

[0002] A press brake is a machine capable of bending thin sheets. Its structure primarily consists of a bracket, a worktable, and a clamping plate. The worktable rests on the bracket, and consists of a base and a pressure plate. The base is hinged to the clamping plate, and the base consists of a housing, a coil, and a cover. The coil is placed in a recess in the housing, and the top of the recess is covered with a cover. During operation, a wire energizes the coil, generating an attractive force on the pressure plate, thereby clamping the sheet between the plate and the base. The use of electromagnetic clamping allows the pressure plate to be formed to a variety of workpiece requirements, including workpieces with sidewalls, making it very easy to operate.

[0003] The bending machines in the prior art are generally not equipped with protective mechanisms. When the bending machine performs bending operations, the bent parts may be displaced due to the extrusion effect, which may cause harm to the workers. Some devices that have the function of protecting the bending machine also require additional driving equipment, which reduces the overall linkage of the device and is not convenient for the promotion and use of the device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art. A protective structure for a bending machine is proposed by moving two movable blocks to push the protective frame to move so that the protective frame is moved out through the through slot to block, thereby achieving a protective effect and preventing the bending parts from bouncing up and causing harm to the workers.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A protective structure for a bending machine includes a base, a support frame is provided at the upper end of the base, two symmetrically arranged telescopic cylinders are passed through the support frame, a connecting plate is commonly provided at the telescopic ends of the two telescopic cylinders, a bending block is provided at the lower end of the connecting plate, a bending groove is provided at the upper end of the base to cooperate with the bending block, a chamber is provided in the base, a through groove is provided between the chamber and the base, a protective frame is passed through the through groove, a moving mechanism for moving the protective frame is provided in the chamber, and a driving mechanism for driving the moving mechanism is provided on the support frame.

[0007] Preferably, the moving mechanism includes a double-headed screw rotatably connected in the chamber, the threads at both ends of the double-headed screw have opposite rotation directions, and the outer walls at both ends of the double-headed screw are threadedly connected to moving blocks, and the upper ends of the two moving blocks and the lower end of the protective frame are provided with rotating seats, and the two rotating seats are rotatably connected via a rotating plate.

[0008] Preferably, the driving mechanism comprises a through slot provided on the side wall of the support frame, a rotating shaft passes through the through slot and is rotatably connected to the rear end of the support frame, and a transmission wheel is provided on the outer wall of the rotating shaft located in the through slot.

[0009] Preferably, a tooth plate is provided on the side wall of the connecting plate, and the tooth plate is engaged with the transmission wheel.

[0010] Preferably, a transmission rod is rotatably connected to the chamber and the rear end of the base, and bevel gears are provided on the end of the transmission rod and the outer wall of the double-headed screw, and the two bevel gears are meshed with each other.

[0011] Preferably, the rotating shaft and the outer wall of the transmission rod are both provided with pulleys, and the two pulleys are connected by belt transmission.

[0012] Beneficial effects of the utility model:

[0013] 1. By moving the two moving blocks to push the protective frame to move, the protective frame is moved out through the through slot to block, thereby achieving a protective effect and preventing the bending parts from bouncing up and causing harm to the staff.

[0014] 2. By setting the engagement between the transmission wheel and the tooth plate, when the telescopic ends of the two telescopic cylinders drive the connecting plate to move downward, the protective frame moves out of the through groove, thereby improving the overall linkage of the device and facilitating the promotion and use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a rear view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic cross-sectional view of the overall structure of the present invention.

[0018] In the figure: 1 base, 2 support frame, 3 telescopic cylinder, 4 connecting plate, 5 bending block, 6 bending groove, 7 through groove, 8 transmission wheel, 9 tooth plate, 10 through groove, 11 protection frame, 12 pulley, 13 double-headed screw, 14 moving block, 15 bevel gear, 16 rotating seat. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] Reference Figure 1-3 A protective structure of a bending machine includes a base 1, a support frame 2 is provided at the upper end of the base 1, two symmetrically arranged telescopic cylinders 3 are provided on the support frame 2, a connecting plate 4 is provided at the end of the telescopic ends of the two telescopic cylinders 3, a bending block 5 is provided at the lower end of the connecting plate 4, a bending groove 6 is provided at the upper end of the base 1 to match the bending block 5, a chamber is provided in the base 1, a through groove 7 is provided between the chamber and the base 1, a protective frame 11 is provided in the through groove 7, and a moving mechanism for moving the protective frame 11 is provided in the chamber. The mechanism includes a double-headed screw 13 rotatably connected in the chamber, and the threads at both ends of the double-headed screw 13 rotate in opposite directions. The outer walls at both ends of the double-headed screw 13 are threadedly connected to moving blocks 14, and the upper ends of the two moving blocks 14 and the lower end of the protective frame 11 are provided with rotating seats 16. The two rotating seats 16 are rotatably connected by a rotating plate. By moving the two moving blocks 14, the protective frame 11 is pushed to move, and the protective frame 11 is moved out through the through slot 10 for shielding, thereby achieving a protective effect and preventing the bending parts from bouncing up and causing harm to the staff.

[0022] The support frame 2 is provided with a driving mechanism for driving the moving mechanism. The driving mechanism includes a through slot 7 opened on the side wall of the support frame 2. A rotating shaft is rotatably connected to the through slot 7 and the rear end of the support frame 2. A transmission wheel 8 is provided on the outer wall of the rotating shaft located in the through slot 7.

[0023] A tooth plate 9 is provided on the side wall of the connecting plate 4, which engages with the transmission wheel 8. By setting the engagement between the transmission wheel 8 and the tooth plate 9, when the telescopic ends of the two telescopic cylinders 3 drive the connecting plate 4 to move downward, the protective frame 11 moves out from the through groove 10, thereby improving the overall linkage of the device and facilitating the promotion and use of the device.

[0024] A transmission rod is rotatably connected to the chamber and the rear end of the base 1 . The end of the transmission rod and the outer wall of the double-headed screw 13 are both provided with bevel gears 15 , and the two bevel gears 15 are meshed with each other.

[0025] Pulleys 12 are provided on the outer walls of the rotating shaft and the transmission rod, and the two pulleys 12 are connected through belt transmission.

[0026] When the utility model is used, when the workpiece to be bent is placed between the bending block 5 and the bending groove 6 for bending operation, the two telescopic cylinders 3 are started, so that the telescopic ends of the two telescopic cylinders 3 push the connecting plate 4 downward, and the toothed plate 9 on the side wall of the connecting plate 4 moves downward. The toothed plate 9 is engaged with the transmission wheel 8, so that the transmission wheel 8 rotates to drive the rotating shaft. The transmission rod is rotated by the transmission action of the pulley 12 and the belt between the rotating shaft and the transmission rod, and then the bevel gear between the rotating rod and the double-headed screw 13 is rotated. Under the meshing action of 15, the double-headed screw 13 is rotated, and the two moving blocks 14 are moved by utilizing the opposite rotation directions of the threads at both ends of the double-headed screw 13 and the threaded connection between the moving block 14 and the double-headed screw 13. The moving blocks 14 are connected with the two rotating seats 16 at the lower end of the protective frame 11 and the rotating plate, so that the two moving blocks 14 move and push the protective frame 11 to move, so that the protective frame 11 is moved out through the through slot 10 for shielding, thereby achieving a protective effect and preventing the bending parts from bouncing up and causing harm to the staff.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A protective structure for a bending machine, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a support frame (2), two symmetrically arranged telescopic cylinders (3) are provided through the support frame (2), the telescopic ends of the two telescopic cylinders (3) are provided with a connecting plate (4), the lower end of the connecting plate (4) is provided with a bending block (5), the upper end of the base (1) is provided with a bending groove (6) that matches the bending block (5), a chamber is provided in the base (1), a through groove (7) is provided between the chamber and the base (1), a protective frame (11) is provided through the through groove (7), a moving mechanism for moving the protective frame (11) is provided in the chamber, and a driving mechanism for driving the moving mechanism is provided on the support frame (2).

2. The protective structure of a bending machine according to claim 1, characterized in that: The moving mechanism includes a double-headed screw (13) rotatably connected in the chamber, the threads at both ends of the double-headed screw (13) are rotated in opposite directions, and the outer walls at both ends of the double-headed screw (13) are threadedly connected to moving blocks (14), and the upper ends of the two moving blocks (14) and the lower end of the protective frame (11) are provided with rotating seats (16), and the two rotating seats (16) are rotatably connected via a rotating plate.

3. The protective structure of a bending machine according to claim 2, characterized in that: The driving mechanism comprises a through slot (7) provided on the side wall of the support frame (2); a rotating shaft is rotatably connected to the through slot (7) and the rear end of the support frame (2); a transmission wheel (8) is provided on the outer wall of the rotating shaft located in the through slot (7).

4. The protective structure of a bending machine according to claim 3, characterized in that: A tooth plate (9) is provided on the side wall of the connecting plate (4), and the tooth plate (9) is engaged with the transmission wheel (8).

5. The protective structure of a bending machine according to claim 4, characterized in that: A transmission rod is rotatably connected to the chamber and the rear end of the base (1). The end of the transmission rod and the outer wall of the double-headed screw (13) are both provided with bevel gears (15), and the two bevel gears (15) are meshed with each other.

6. The protective structure of a bending machine according to claim 5, characterized in that: The rotating shaft and the outer wall of the transmission rod are both provided with pulleys (12), and the two pulleys (12) are connected through belt transmission.

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