Single-side independently-driven opening-adjustable lower die device

Abstract

The utility model relates to a unilateral independently-driven opening-adjustable lower die device which comprises a die holder, a plurality of serrated plates are fixedly mounted on the top surface of the die holder, a gap is reserved between every two adjacent serrated plates, two groups of sawteeth are symmetrically arranged on two sides of the top of each serrated plate, two lower dies are mounted on two sides of the top of each serrated plate respectively, and the two lower dies are arranged oppositely. Tooth parts matched with the corresponding sawteeth are arranged at the bottoms of the lower dies, jacking mechanisms and translation driving mechanisms are arranged in gaps between the sawtooth plates, the jacking mechanisms are used for jacking the lower dies upwards to be separated from the sawtooth plates, the translation driving mechanisms are symmetrically arranged on the two sides of the die holder, and the translation driving mechanisms on the two sides are connected with the lower dies on the corresponding sides respectively; the jacking mechanism and the translation driving mechanism are both in signal connection with a main control system of the bending machine; the asymmetric adjusting function of the lower die opening is achieved, automatic adjustment can be achieved through the main control system, time and labor are saved, and efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bending machine processing technology, specifically a single-sided independent drive adjustable opening lower die device. Background Technology

[0002] During bending machine processing, the opening width of the lower die needs to be adjusted due to different material thicknesses, material properties, workpiece inner radii, and upper dies. Traditional CNC adjustable lower die opening adjustment is achieved by using a servo motor and precision ball screw to drive the die center. However, this adjustment method can only symmetrically adjust the lower dies on both sides, meaning that the distance from the lower dies on both sides to the center of the die base is always equal. Some workpieces require the lower die on one side to be offset during processing, which often requires a lot of manual labor and a long die change time. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a single-sided independent drive adjustable opening lower mold device.

[0004] The specific solution of this utility model is as follows: a single-sided independent drive adjustable opening lower die device, including a die base, a number of serrated plates fixedly mounted on the top surface of the die base, a gap between adjacent serrated plates, two sets of serrations symmetrically arranged on the top two sides of the serrated plates, a lower die mounted on each of the top two sides of the serrated plates, the two lower dies arranged opposite to each other, the bottom of the lower die having teeth that match the corresponding serrations, a lifting mechanism and a translation drive mechanism installed in the gap between the serrated plates, the lifting mechanism being used to lift the lower die upwards and detach it from the serrated plates, the translation drive mechanism being symmetrically arranged on both sides of the die base, the translation drive mechanism on both sides being connected to the lower die on the corresponding side respectively; the lifting mechanism and the translation drive mechanism are both signal connected to the main control system of the bending machine.

[0005] Furthermore, the translation drive mechanism includes a servo motor, the output end of which is equipped with a reducer, and the output end of the reducer is equipped with a lead screw. The axis of the lead screw is arranged parallel to the width direction of the lower die. Bearing seats are installed at both ends of the lead screw, and the two ends of the lead screw are rotatably connected to the bearing seats. A slider is threaded onto the lead screw, and a connecting piece for connecting to the lower die is provided on the top of the slider.

[0006] Furthermore, the connector is arranged vertically, and the bottom of the lower mold is provided with a sliding cavity corresponding to the connector, and the sliding cavity is slidably connected to the connector.

[0007] Furthermore, the lifting mechanism includes a support plate, which is disposed below the lower mold. A hydraulic cylinder is installed at the bottom of the support plate. The mold base is provided with hydraulic pipelines, which are connected to the hydraulic cylinders of each lifting mechanism.

[0008] Furthermore, each lifting mechanism is equipped with several hydraulic cylinders, which are arranged in a row along the width of the mold base.

[0009] Compared with the prior art, the present invention has the following advantages: the present invention realizes the asymmetric adjustment function of the lower mold opening, and can be automatically adjusted through the main control system, saving time and effort and improving efficiency. Attached Figure Description

[0010] Figure 1 This is the front view of this utility model;

[0011] Figure 2 yes Figure 1 Top view;

[0012] Figure 3 yes Figure 2 AA view;

[0013] Figure 4 yes Figure 2 BB view;

[0014] In the diagram: 1. Mold base; 2. Translation drive mechanism; 21. Servo motor; 22. Reducer; 23. Bearing seat; 24. Slider; 25. Connector; 3. Lifting mechanism; 31. Support plate; 32. Hydraulic cylinder; 4. Hydraulic pipeline; 5. Serrated plate; 6. Lower mold. Detailed Implementation

[0015] See Figures 1-4 This embodiment is a single-sided independently driven adjustable opening lower die 6 device, including a die base 1. Several serrated plates 5 are fixedly mounted on the top surface of the die base 1. There is a gap between two adjacent serrated plates 5. Two sets of serrations are symmetrically arranged on the top two sides of the serrated plates 5. A lower die 6 is mounted on each of the top two sides of the serrated plates 5. The two lower dies 6 are arranged opposite each other. The bottom of the lower die 6 is provided with teeth that match the corresponding serrations. A lifting mechanism 3 and a translation drive mechanism 2 are installed in the gap between the serrated plates 5. The lifting mechanism 3 is used to lift the lower die 6 upward and detach it from the serrated plates 5. The translation drive mechanism 2 is symmetrically arranged on both sides of the die base 1. The translation drive mechanism 2 on both sides is connected to the lower die 6 on the corresponding side. The lifting mechanism 3 and the translation drive mechanism 2 are both connected to the main control system of the bending machine.

[0016] Furthermore, the translation drive mechanism 2 includes a servo motor 21, the output end of the servo motor 21 is equipped with a reducer 22, the output end of the reducer 22 is equipped with a lead screw, the axis of the lead screw is arranged parallel to the width direction of the lower mold 6, the two ends of the lead screw are equipped with bearing seats 23, the two ends of the lead screw are rotatably connected to the bearing seats 23, and a slider 24 is threadedly connected to the lead screw, the top of the slider 24 is provided with a connecting piece 25 connected to the lower mold 6.

[0017] Furthermore, the connector 25 is arranged vertically with a support column, and the bottom of the lower mold 6 is provided with a sliding cavity corresponding to the connector 25, and the sliding cavity is slidably connected to the connector 25.

[0018] Furthermore, the lifting mechanism 3 includes a support plate 31, which is disposed below the lower mold 6. A hydraulic cylinder 32 is installed at the bottom of the support plate 31. A hydraulic pipeline 4 is provided inside the mold base 1, and the hydraulic pipeline 4 is connected to the hydraulic cylinder 32 of each lifting mechanism 3.

[0019] Furthermore, each lifting mechanism 3 is equipped with several hydraulic cylinders 32, which are arranged in a row along the width direction of the mold base 1. The hydraulic cylinders 32 are HSE type threaded clamping cylinders.

[0020] The working principle of this utility model is as follows: Each translation drive mechanism 2 is independent of each other and is controlled by the main control system. When it is necessary to adjust the opening of the lower mold 6, the main control system first controls the hydraulic cylinders 32 of each lifting mechanism 3 to move. All the hydraulic cylinders 32 lift the corresponding support plates 31 upward, thereby pushing out the lower molds 6 on both sides, so that the teeth of the lower mold 6 are completely disengaged from the teeth of the sawtooth plate 5. Then, according to the distance to be adjusted, the corresponding control command is sent to the translation drive mechanism 2 on the corresponding side. The servo motors 21 of each translation drive mechanism 2 move synchronously, and drive the lead screw to rotate through the reducer 22, thereby driving the slider 24 and the connecting piece 25. Through the connecting piece 25, the corresponding lower mold 6 moves laterally a specified distance, and finally the opening of the lower mold 6 is adjusted to the set value. After the opening of the lower mold 6 is adjusted, the system controls each hydraulic cylinder 32 to return, so that the teeth of the lower mold 6 and the sawtooth plate are engaged again. This completes the whole process of adjusting the opening of the lower mold 6.

[0021] Because the translation drive mechanisms 2 on both sides operate independently, the distances that the lower dies 6 move on both sides are allowed to be inconsistent, thus allowing the opening of the lower die 6 to deviate from the center. This invention uses a servo motor 21 for precise control, ensuring that the distance the lower die 6 moves laterally each time is an integer multiple of the tooth pitch of the serrated plate 5, thus ensuring that the lower die 6 can accurately engage with the serrated plate 5 when it is in place after each adjustment.

Claims

1. A single-sided independently driven adjustable opening lower mold device, characterized in that: The device includes a mold base, on which several serrated plates are fixedly mounted on the top surface. A gap is provided between two adjacent serrated plates. Two sets of serrations are symmetrically arranged on the top two sides of the serrated plates. A lower die is mounted on each of the top two sides of the serrated plates, and the two lower dies are arranged opposite each other. The bottom of the lower die is provided with teeth that match the corresponding serrations. A lifting mechanism and a translation drive mechanism are installed in the gap between the serrated plates. The lifting mechanism is used to lift the lower die upward and detach it from the serrated plates. The translation drive mechanism is symmetrically arranged on both sides of the mold base, and the translation drive mechanism on both sides is connected to the lower die on the corresponding side. Both the lifting mechanism and the translation drive mechanism are connected to the main control system of the bending machine via signals.

2. The single-sided independently driven adjustable opening lower mold device according to claim 1, characterized in that: The translation drive mechanism includes a servo motor, a reducer is installed at the output end of the servo motor, a lead screw is installed at the output end of the reducer, the axis of the lead screw is arranged parallel to the width direction of the lower die, bearing seats are installed at both ends of the lead screw, the two ends of the lead screw are rotatably connected to the bearing seats, a slider is threaded on the lead screw, and a connecting piece for connecting to the lower die is provided on the top of the slider.

3. The single-sided independently driven adjustable opening lower mold device according to claim 2, characterized in that: The connector is arranged vertically, and the bottom of the lower mold is provided with a sliding cavity corresponding to the connector, which is slidably connected to the connector.

4. The single-sided independently driven adjustable opening lower mold device according to claim 1, characterized in that: The lifting mechanism includes a support plate, which is located below the lower mold. A hydraulic cylinder is installed at the bottom of the support plate. The mold base is provided with hydraulic pipelines, which are connected to the hydraulic cylinders of each lifting mechanism.

5. A single-sided independently driven adjustable opening lower mold device according to claim 4, characterized in that: Each lifting mechanism is equipped with several hydraulic cylinders, which are arranged in a row along the width of the mold base.

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