Bending machine of crank rocker mechanism

Abstract

The utility model discloses a bending machine with crank rocker mechanisms, which belongs to the technical field of bending machines and comprises a frame, a cutter block and two crank rocker mechanisms, the cutter block is slidably arranged along the vertical direction of the frame, the two crank rocker mechanisms are arranged on two sides of the frame, the upper ends of the two crank rocker mechanisms are hinged to the cutter block, and a motor is further arranged on one side of the frame. The right end of the rocker is hinged to the positioning roller; a transmission rod is hinged to the middle part of the rocker; a cutter block is hinged to the top end of the transmission rod; the motor drives the turntable on the same side to rotate; only a motor with small power is needed to drive the transmission rod through the rocker to drive the tool bit to complete machining of the metal plate, and the manufacturing cost, the transportation cost and the use cost can be saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bending machine, especially a bending machine of crank rocker mechanism. BACKGROUND

[0002] The bending machine is a kind of machine that can bend sheet, and the bending machine is used to bend metal plate into various geometric cross-section workpieces by using the mold provided, and it is a plate forming machine designed for cold rolling sheet metal processing.

[0003] The lower knife of the existing bending machine is directly pushed by motor to process sheet metal, and it needs relatively large power motor to complete, so the equipment cost and transportation and use cost are higher, and it needs to be improved. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides a bending machine of crank rocker mechanism to solve one or more technical problems existing in the prior art, and at least provides a beneficial choice or creates conditions.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of bending machine of crank rocker mechanism, including frame, knife block is slidably arranged along the vertical direction of the frame, the both ends of the knife block are respectively hinged with crank rocker mechanism, the crank rocker mechanism includes rotary disc fixedly connected to the frame, one end of connecting rod is eccentrically hinged to the rotary disc, the other end of the connecting rod is hinged with the left end of rocker, the right end of the rocker is hinged to positioning roller, transmission rod is hinged to the middle part of the rocker, the top end of the transmission rod is hinged with the knife block, the frame side is also provided with motor, the motor drives the rotary disc on the same side to rotate.

[0007] Preferably, the middle part of the rocker is provided with first hinged point and second hinged point, the second hinged point is located on the left side of the first hinged point, the first hinged point is hinged to the transmission rod, the second hinged point is hinged with second transmission rod, and the top end of the second transmission rod is hinged to the left side of the knife block.

[0008] Preferably, the top end of the second transmission rod is provided with a waist-shaped hole, and the waist-shaped hole is slidably connected to the knife block.

[0009] Preferably, the left lower direction of the knife block extends outward and is provided with a support rod, and the waist-shaped hole is slidably connected to the support rod.

[0010] Preferably, one end of the spring is connected to the left side of the knife block, and the other end of the spring is connected to the bending machine.

[0011] The utility model has the beneficial effects:

[0012] Through the lever action of the rocker, only a small power motor is needed to drive the transmission rod to drive the tool bit to complete the processing of the metal plate, which can save the manufacturing cost and transportation and use cost.

[0013] By setting the second transmission rod, the knife block can be pushed to rotate by the second transmission rod after completing 90-degree bending, and less than 90-degree bending can be completed, so that one tool bit can complete bending of multiple angles, thereby reducing equipment cost and improving processing efficiency.

[0014] By setting the waist-shaped hole, the length of the waist-shaped hole can be adjusted to adjust the rotation angle of the tool bit, and more than 90-degree bending can be completed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a first perspective view of the embodiment;

[0016] Figure 2 is a front view of the embodiment;

[0017] Figure 3 is a sectional view of A;

[0018] Figure 4 is an enlarged view of B.

[0019] BRIEF DESCRIPTION OF DRAWINGS: 1, rotating disc; 2, connecting rod; 3, rocker; 5, positioning roller; 6, first hinge point; 7, transmission rod; 8, knife block; 9, second transmission rod; 10, waist-shaped hole; 11, motor; 12, spring; 13, second hinge point; 14, support rod; 15, rack. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be described below in combination with the drawings and embodiments.

[0021] Embodiment: reference Figures 1-4The application discloses a bending machine of a crank rocker mechanism, which comprises a frame 15, a tool block 8 slidingly arranged on the frame 15 in the vertical direction, and a crank rocker mechanism, wherein the crank rocker mechanism is provided with a rotating disc 1, one side of the rotating disc 1 is eccentrically hinged to one end of a connecting rod 2, the other end of the connecting rod 2 is hinged to the left end of a rocker 3, the right end of the rocker 3 is hinged to a positioning roller 5, the middle part of the rocker 3 is provided with a first hinge point 6, one end of a transmission rod 7 is hinged to the first hinge point 6, the other end of the transmission rod 7 is hinged to one end of the tool block 8, one side of the frame 15 is provided with a motor 11, the motor 11 drives the rotating disc 1 on the same side to rotate, the rotating disc 1 drives the rocker 3 to move around the positioning roller 5 through the connecting rod 2, the rocker 3 and the positioning roller 5 act as a lever on the transmission rod 7, the tool block 8 is driven by the transmission rod 7 to move up and down along a channel arranged in the bending machine, when moving upwards, the tool block 8 bends a metal plate arranged above, and when moving downwards, the tool block 8 resets, the rocker 3 and the positioning roller 5 form a lever action on the transmission rod 7, only a small force needs to be applied to the left end of the rocker 3, and then a larger force can be applied to the tool block 8 to move upwards under the lever action, so that the metal plate can be bent, and a motor 11 with a smaller power can be used.

[0022] Specifically, the rocker 3 is further provided with a second hinge point 13, the second hinge point 13 is arranged on the left side of the first hinge point 6, one end of a second transmission rod 9 is hinged to the second hinge point 13, the other end of the second transmission rod 9 is hinged to the left side of the tool block 8, when the tool block 8 is driven by the transmission rod 7 to complete the bending of the metal plate, the left end of the rocker 3 continues to rotate around the positioning roller 5, drives the second transmission rod 9 to move upwards, and then drives the tool block 8 to rotate around the upper end of the transmission rod 7, so that a transverse force is applied to the metal plate which has been bent to 90 degrees to make the metal plate continue to be bent, and the angle between the bent metal plate and the horizontal direction is less than 90 degrees.

[0023] Specifically, the top end of the second transmission rod 9 is provided with a waist-shaped hole 10, the waist-shaped hole 10 is slidingly connected to the tool block 8, the angle of the tool block 8 rotating around the upper end of the transmission rod 7 can be accurately adjusted through the waist-shaped hole 10, and then the angle between the bent metal plate and the horizontal direction can be adjusted, so that multi-angle bending can be completed.

[0024] Specifically, the tool block 8 is outwardly extended to the left lower direction and is provided with a supporting rod 14, the supporting rod 14 is slidingly connected to the waist-shaped hole 10, and the supporting rod 14 is arranged to increase the force arm of the tool block 8 rotating around the upper end of the transmission rod 7, so that the tool block 8 rotating around the upper end of the transmission rod 7 is more labor-saving.

[0025] Specifically, one end of a spring 12 is connected to the left side of the tool block 8, the other end of the spring 12 is connected to the bending machine, when the tool block 8 moves from top to bottom, the spring 12 resets the tool block 8, so that the tool block 8 returns to the vertical state.

[0026] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, and a particular orientation configuration and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0027] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] The above one embodiment of the utility model has been described in detail, and the focus is the structure of a crank rocker and a bending machine, but the content described is only the preferred embodiment of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent change and improvement made within the scope of the utility model application shall still belong to the patent coverage range of the utility model.

Claims

1. A bending machine of crank rocker mechanism, comprising a frame (15), a tool block (8) is arranged to slide along the vertical direction of the frame (15), characterized in that: The knife block (8) is hinged with crank rocker mechanism at both ends, the crank rocker mechanism includes a rotating disc (1) fixedly connected to the rack (15), one end of the rotating disc (1) is eccentrically hinged with a connecting rod (2), the other end of the connecting rod (2) is hinged with the left end of a rocker (3), the right end of the rocker (3) is hinged to a positioning roller (5), the middle part of the rocker (3) is hinged with a transmission rod (7), the top end of the transmission rod (7) is hinged with the knife block (8), and one side of the rack (15) is further provided with a motor (11), the motor (11) drives the rotating disc (1) on the same side to rotate.

2. A bending machine with a crank rocker mechanism according to claim 1, characterized in that: The middle part of the rocker (3) is provided with a first hinge point (6) and a second hinge point (13), the second hinge point (13) is located on the left side of the first hinge point (6), the first hinge point (6) is hinged to the transmission rod (7), and the second hinge point (13) is hinged with a second transmission rod (9), the top end of the second transmission rod (9) is hinged to the left side of the knife block (8).

3. A bending machine with a crank rocker mechanism according to claim 2, characterized in that: The top end of the second transmission rod (9) is provided with a waist-shaped hole (10), and the waist-shaped hole (10) is slidably connected to the knife block (8).

4. A bending machine with a crank rocker mechanism according to claim 3, characterized in that: The waist-shaped hole (10) is slidably connected to the supporting rod (14) which is arranged on the left lower part of the knife block (8) and extends outward.

5. The bending machine of claim 2, wherein: One end of the spring (12) is connected to the left side of the knife block (8), and the other end of the spring (12) is connected to the bending machine.

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