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Mechanical type all-electric servo numerical control bending machine based on multi-degree-of-freedom coupling driving

A coupled drive and mechanical technology, applied in metal processing, metal processing equipment, forming tools, etc., can solve the problems of low power utilization, high drive motor power, and incomplete application of motor power, so as to improve performance and action Gently, to achieve the effect of high-speed heavy load

Pending Publication Date: 2019-09-27
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The required drive motor power is very large, even in the actual use process, the motor does not use the highest peak power, resulting in the power of the motor is not fully applied, that is, the power utilization rate is low
Taking the common 35-ton electromechanical servo bending machine currently on the market as an example, its fast down speed and return speed are generally 200mm / s, and its nominal bending force is 350kN. In order to meet the requirements of the highest speed and maximum bending force at the same time, Usually need to use two 7.5kW servo motors, the conventional configuration in the current market, but in the actual work process, the actual power consumed by the two servo motors is about 1kw ~ 2kW, and the power utilization rate is very low

Method used

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  • Mechanical type all-electric servo numerical control bending machine based on multi-degree-of-freedom coupling driving
  • Mechanical type all-electric servo numerical control bending machine based on multi-degree-of-freedom coupling driving
  • Mechanical type all-electric servo numerical control bending machine based on multi-degree-of-freedom coupling driving

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Experimental program
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Effect test

Embodiment 1

[0060] Such as image 3 As shown, the present invention is a mechanical all-electric servo numerical control bending machine based on multi-degree-of-freedom coupling drive, including a frame 1, a lower die 2, a slider 3, and a lower die 4. The sliding block 3 can move up and down along the frame 1. The sliding block 3 is provided with symmetrical guide grooves 24 for guiding sliding. The frame 1 is provided with a guide block inserted into the guiding groove 24 and sliding up and down along the guiding groove 24. 25. The upper mold 4 is fixedly arranged on the slider 3, the lower mold 2 is fixedly arranged on the frame 1, and the upper mold 4 and the lower mold 2 cooperate with each other to realize bending.

[0061] Such as Figure 4 with Figure 5 As shown, the slider 3 is connected with a first drive mechanism and a second drive mechanism for driving the slider to achieve different speeds and stroke ranges. The first driving mechanism includes a first power assembly, a first...

Embodiment 2

[0072] The structure of the second embodiment is the same as that of the first embodiment. The difference is that the eccentricity of the first eccentric wheel 5 is smaller than that of the second eccentric wheel 9, and the first driving mechanism drives the slider to realize low-speed and small-stroke movement. The second drive mechanism drives the slider to achieve high-speed and large-stroke movement. The working condition of the bending machine is a typical variable-speed and variable-load working condition. The fast down and return stages are high-speed, low-load and large-stroke movement stages, and the work advance stage is a low-speed, large-load and small-stroke movement stage. Therefore, the present invention adopts the second drive mechanism to drive the slider to realize the fast down and return stages, and the first drive mechanism drives the slider to realize the work advance stage.

Embodiment 3

[0074] Such as Figure 14 As shown, the present invention is a mechanical all-electric servo numerical control bending machine based on multi-degree-of-freedom coupling drive, which includes a frame 1, a lower die 2, a slider 3, and a lower die 4. The sliding block 3 can move up and down along the frame 1. The sliding block 3 is provided with symmetrical guide grooves 24 for guiding sliding. The frame 1 is provided with a guide block inserted into the guiding groove 24 and sliding up and down along the guiding groove 24. 25. The upper mold 4 is fixedly arranged on the slider 3, the lower mold 2 is fixedly arranged on the frame 1, and the upper mold 4 and the lower mold 2 cooperate with each other to realize bending.

[0075] Such as Figure 15 with Figure 16 As shown, the slider 3 is connected with a first drive mechanism and a second drive mechanism for driving the slider to achieve different speeds and stroke ranges. The first driving mechanism includes a first power assembly...

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Abstract

The invention discloses a mechanical type all-electric servo numerical control bending machine based on multi-freedom-degree coupling driving. The mechanical type all-electric servo numerical control bending machine comprises a machine frame, a lower die, a sliding block, a upper die, a first driving mechanism and a second driving mechanism, wherein the lower die is fixedly connected with the machine frame and ,used for bending, the sliding block is capable of moving up and down along the machine frame, a upper die is fixedly connected with the sliding block, and is matched with the upper die for bending, the sliding block is connected with the first driving mechanism and the second driving mechanism which are used for driving the sliding block to achieve different speeds and stroke range, and the second driving mechanism is symmetrically arranged left and right. The mechanical type all-electric servo numerical control bending machine based on the multi-freedom-degree coupling driving is suitable for large tonnage, and has the advantages of being heavy in load, high in precision, low in energy consumption, small in driving motor power, high in power utilization rate, fast in speed, low in manufacturing cost and the like, and meanwhile, the nonlinear motion characteristic of a connecting rod mechanism, the self-locking characteristic of the specific position and the self-locking characteristic of the lever principle or the screw thread pair transmission are utilized.

Description

Technical field [0001] The invention relates to a plate bending machine, in particular to a mechanical all-electric servo numerical control bending machine based on a multi-degree-of-freedom coupling drive. Background technique [0002] CNC bending machine is the most important and basic equipment in the field of sheet metal processing. Energy saving, environmental protection, high speed, high precision, digitalization and intelligence are the future development trends. The driving modes of CNC bending machine include hydraulic drive and mechanical electric servo drive. At present, hydraulic drive is mainly used, but mechanical electric servo is the future development trend. [0003] The advantage of hydraulic drive is large tonnage, easy to achieve large-format and thick plate bending processing; the disadvantages of hydraulic drive are the following: 1. Large noise, high energy consumption, hydraulic oil leakage and environmental pollution; 2. Cost is relatively high High, becau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D5/02B21D5/00B21D37/12B21D37/00B21C51/00
CPCB21D5/0209B21D5/0227B21D5/004B21D37/12B21D37/00B21C51/00
Inventor 徐丰羽芦雨轩申景金蒋国平
Owner NANJING UNIV OF POSTS & TELECOMM
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