Gate type hydraulic plate shearing machine

Abstract

The utility model belongs to the technical field of gate type plate shearing machines, and discloses a gate type hydraulic plate shearing machine which comprises a machine frame, a lower installation base is fixedly installed at the lower end in the machine frame, a bearing table is fixedly installed at the top of the lower installation base, a connecting rod is hinged to the lower end of a first transmission rod, and second transmission rods are hinged to the left side and the right side of the connecting rod. According to the gate type hydraulic plate shearing machine, when a plate needs to be cut, the plate needing to be cut is firstly placed on the upper surface of the bearing table, then the plate needs to be cut, the lower ends of the two second transmission rods are hinged to a lower pressing base, and a cutting knife is fixedly installed on one side of the bottom of the lower pressing base; after placing is completed, the air cylinder extends to drive the upper end of the first transmission rod to move leftwards, the second transmission rod is stressed to push the downward pressing base downwards, the cutting knife at the lower end of the downward pressing base moves along with the track of the downward pressing base to cut the plate in the downward moving process, power is provided through oblique thrust, the needed total shearing force can be reduced, and the cutting efficiency is improved. And meanwhile, the shearing quality can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the gate type plate shearing machine, concretely to the gate type hydraulic plate shearing machine. BACKGROUND

[0002] The gate type plate shearing machine, also known as a gantry shear or a hydraulic plate shearing machine, is a mechanical device used for cutting metal plates. It achieves the shearing of plates through the relative movement between a fixed blade and a movable blade (gate). The gate type plate shearing machine is widely used in industries such as metal processing, machinery manufacturing, shipbuilding, and automobile manufacturing. It has the advantages of being able to handle thicker plates, being suitable for heavy industrial applications, having high shearing precision, ensuring good edge quality, and having lower maintenance costs compared to other types of plate shearing machines.

[0003] For example, the hydraulic gate type plate shearing machine with publication number CN208945263U includes an operating table, the inner top of the operating table is fixedly connected with a connecting plate through a lifting mechanism, and the two sides of the connecting plate are fixedly connected with sliding blocks. The utility model cooperates with the lifting mechanism, the limiting mechanism, the sliding block, the limiting rod, and the cutter to move the connecting plate up and down by using the first hydraulic telescopic pump, thereby moving the cutter up and down to cut the plate. At the same time, the elastic potential energy of the telescopic rod and the spring is used to limit the plate in the first layer. Through the synergistic effect of the adjusting mechanism, the power mechanism, the connecting mechanism, and the second shaft, the motor drives the first shaft to rotate, and then the belt drives the second shaft to rotate, so that the first roller and the second roller convey the plate to the cutting position. At the same time, the second hydraulic telescopic pump drives the U-shaped limiting plate to move left and right, thereby adjusting the cutting length of the plate and limiting the plate in the second layer.

[0004] The hydraulic plate shearing machine directly presses the workpiece downward by using a cylinder during work, which requires a large pressure for thicker plates and is prone to damaging the blade. To solve the above problems, the gate type hydraulic plate shearing machine is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above problems by providing a gate type hydraulic plate shearing machine, which includes:

[0006] A rack is internally fixedly installed with a lower mounting seat at the lower end, a supporting table is fixedly installed at the top of the lower mounting seat, a cylinder is hingedly connected to one side of the top of the rack, a first transmission rod is hingedly connected to the other side of the top of the rack, the output shaft of the cylinder is hingedly connected to the upper end of the first transmission rod, a connecting rod is hingedly connected to the lower end of the first transmission rod, second transmission rods are hingedly connected to the left and right sides of the connecting rod, a lower pressing seat is hingedly connected to the lower ends of the two second transmission rods, and a cutting knife is fixedly installed on one side of the bottom of the lower pressing seat.

[0007] Through the technical scheme, when the plate needs to be cut, the plate to be cut is placed on the upper surface of the supporting table, after the placement, the upper end of the first transmission rod is driven to move to the left by the extension of the air cylinder, at this time, the lower end of the first transmission rod applies a downward thrust to the connecting rod, the connecting rod applies a thrust to the second transmission rod under the force, and the second transmission rod pushes the lower pressing seat downward under the force, the cutting knife at the lower end of the lower pressing seat moves along the track to cut the plate during the downward movement of the lower pressing seat, and the oblique thrust provides power, so that the total shearing force required can be reduced, and the shearing quality can be improved.

[0008] In a preferred embodiment, a positioning plate is slidably connected to the front side of the lower pressing seat, and a spring rod is fixedly installed between one side of the positioning plate and the lower pressing seat.

[0009] Through the technical scheme, during the cutting process, the positioning plate at the front side of the lower pressing seat moves along the track during the downward movement of the lower pressing seat, so that the positioning plate presses the plate to be cut before cutting, and the plate to be cut is kept stable during the cutting process.

[0010] In a preferred embodiment, the cutting knife is of an inclined surface structure.

[0011] Through the technical scheme, during the cutting process, the cutting knife is of an inclined surface structure, so that the cutting knife realizes horizontal cutting from one side to the other side when contacting the plate, which improves the cutting efficiency and reduces the damage to the cutting knife.

[0012] In a preferred embodiment, guide rails are fixedly installed on the inner walls of the left and right sides of the rack, and sliding blocks are slidably connected to the outer walls of the guide rails, and the sliding blocks are fixedly installed on the left and right sides of the lower pressing seat away from the guide rails.

[0013] Through the technical scheme, during the movement of the lower pressing seat, the sliding blocks cooperate with the guide rails to make the lower pressing seat always move up and down along a straight line.

[0014] In a preferred embodiment, the supporting table is located directly below the positioning plate, and the upper end of the supporting table is obliquely downward.

[0015] Through the technical scheme, after the plate is cut, the cut plate can naturally fall along the inclined surface of the upper end of the supporting table, which can effectively prevent material accumulation.

[0016] In a preferred embodiment, the lowermost end of the positioning plate is lower than the lowermost end of the cutting knife.

[0017] In summary, due to the adoption of the above technical scheme, the beneficial effects of the utility model are as follows: the utility model discloses a gate type hydraulic plate shearing machine.

[0018] The plate to be cut is placed on the upper surface of the supporting table, and after the placement is completed, the first transmission rod is driven by the extension of the air cylinder to move to the left side, at this time, the lower end of the first transmission rod exerts a downward thrust on the connecting rod, the connecting rod exerts a thrust on the second transmission rod, and the second transmission rod pushes the lower pressing seat downward, the cutting knife at the lower end of the lower pressing seat moves along the track to cut the plate, the oblique thrust provides power, which can reduce the total shear force required and improve the shearing quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic view of the utility model;

[0020] Fig. 2 It is a front view of the utility model;

[0021] Fig. 3 It is a side view of the utility model.

[0022] Marked in the figure: 1 - rack; 2 - lower mounting seat; 3 - supporting table; 4 - air cylinder; 5 - first transmission rod; 6 - connecting rod; 7 - second transmission rod; 8 - lower pressing seat; 9 - cutting knife; 10 - positioning plate; 11 - spring rod; 12 - guide rail; 13 - sliding block. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] The embodiments of the utility model will be described below. Figs. 1-3 The gate type hydraulic plate shearing machine will be described in detail.

[0025] Embodiment:

[0026] The gate type hydraulic plate shearing machine comprises:

[0027] The rack 1 is internally fixedly installed with the lower mounting seat 2 at the lower end, the supporting table 3 is fixedly installed at the top of the lower mounting seat 2, the supporting table 3 is located directly below the positioning plate 10, and the upper end of the supporting table 3 is obliquely arranged at one side, after the plate cutting is completed, the cut plate can naturally fall along the upper end of the supporting table 3, which can effectively prevent material accumulation.

[0028] The frame 1 top side is hinged with a cylinder 4, the frame 1 top other side is hinged with a first transmission rod 5, the cylinder 4 output shaft is hinged with the first transmission rod 5 upper end, the first transmission rod 5 lower end is hinged with a connecting rod 6, the connecting rod 6 left and right sides are hinged with a second transmission rod 7, the two second transmission rods 7 lower ends are hinged with a lower pressing seat 8, the frame 1 left and right sides inner walls are fixedly installed with a guide rail 12, the guide rail 12 outer wall is slidably connected with a sliding block 13, the sliding block 13 away from the guide rail 12 side is fixedly installed on the lower pressing seat 8 left and right sides, in the moving process of the lower pressing seat 8, the sliding block 13 cooperates with the guide rail 12 to make the lower pressing seat 8 always move up and down along a straight line, the lower pressing seat 8 bottom side is fixedly installed with a cutting knife 9, the cutting knife 9 is a bevel structure, in the cutting process of the cutting knife 9, because it is a bevel structure, when the cutting knife contacts with the plate, it realizes horizontal cutting from one side to the other side, on the one hand, it improves the cutting efficiency, on the other hand, it reduces the damage of the cutting knife 9, first, the required cutting plate is placed on the supporting table 3 upper surface, after the placement is completed, the cylinder 4 is elongated to drive the first transmission rod 5 upper end to move to the left side, at this time, the first transmission rod 5 lower end applies downward thrust to the connecting rod 6, the connecting rod 6 applies thrust to the second transmission rod 7, the second transmission rod 7 applies thrust to the lower pressing seat 8 to push it downward, in the moving process of the lower pressing seat 8, the cutting knife 9 at the lower end of the lower pressing seat 8 moves along the track to cut the plate, the oblique thrust provides power, which can reduce the total required shearing force, and can also improve the shearing quality.

[0029] The lower pressing seat 8 front side is slidably connected with a positioning plate 10, the positioning plate 10 lowermost end is lower than the height of the cutting knife 9 lowermost end, the positioning plate 10 side and the lower pressing seat 8 are fixedly installed with a spring rod 11, in the cutting process, when the lower pressing seat 8 moves downward, the positioning plate 10 at the front side of the lower pressing seat 8 moves along the track, so that the positioning plate 10 presses the required cutting plate before cutting, so that it remains stable in the cutting process.

[0030] Working principle:

[0031] First, the required cutting plate is placed on the supporting table 3 upper surface, after the placement is completed, the cylinder 4 is elongated to drive the first transmission rod 5 upper end to move to the left side, at this time, the first transmission rod 5 lower end applies downward thrust to the connecting rod 6, the connecting rod 6 applies thrust to the second transmission rod 7, the second transmission rod 7 applies thrust to the lower pressing seat 8 to push it downward, in the moving process of the lower pressing seat 8, the cutting knife 9 at the lower end of the lower pressing seat 8 moves along the track to cut the plate, the oblique thrust provides power, which can reduce the total required shearing force, and can also improve the shearing quality.

[0032] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A hydraulic press brake for cutting sheet metal, characterized by: Include: Frame (1), the lower end of which is fixedly provided with a lower mounting seat (2), and the top of the lower mounting seat (2) is fixedly provided with a supporting table (3). A gas cylinder (4) is hingedly connected to one side of the top of the frame (1), and a first transmission rod (5) is hingedly connected to the other side of the top of the frame (1). The output shaft of the gas cylinder (4) is hingedly connected to the upper end of the first transmission rod (5), and a connecting rod (6) is hingedly connected to the lower end of the first transmission rod (5). The left and right sides of the connecting rod (6) are hingedly connected with second transmission rods (7), and the lower ends of the two second transmission rods (7) are hingedly connected with a pressing seat (8). The bottom of the pressing seat (8) is fixedly provided with a cutting knife (9).

2. The hydraulic press brake of claim 1, wherein: The front side of the pressing seat (8) is slidingly connected with a positioning plate (10), and the spring rod (11) is fixedly connected between one side of the positioning plate (10) and the pressing seat (8).

3. The hydraulic press brake of claim 1, wherein: The cutting knife (9) is of a bevel structure.

4. The hydraulic press brake of claim 1 wherein: The left and right inner walls of the frame (1) are fixedly provided with guide rails (12), and the outer walls of the guide rails (12) are slidingly connected with sliding blocks (13), which are fixedly installed on the left and right sides of the pressing seat (8).

5. The hydraulic press brake of claim 1 wherein: The supporting table (3) is located directly below the positioning plate (10), and one side of the upper end of the supporting table (3) is arranged downwardly.

6. The hydraulic press brake of claim 2 wherein: The lowermost end of the positioning plate (10) is lower than the lowermost end of the cutting knife (9).

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