Three-degree-of-freedom crank connecting rod mechanical all-electric servo numerical control plate material bending machine

A crank-connecting-rod, mechanical technology, applied in the field of sheet metal bending machines, can solve the problems of low power utilization rate, incomplete application of motor power, and high power of the drive motor, so as to improve performance, achieve high-speed heavy-duty, safety high sex effect

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

Method used

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  • Three-degree-of-freedom crank connecting rod mechanical all-electric servo numerical control plate material bending machine
  • Three-degree-of-freedom crank connecting rod mechanical all-electric servo numerical control plate material bending machine
  • Three-degree-of-freedom crank connecting rod mechanical all-electric servo numerical control plate material bending machine

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example 1

[0045] like image 3 , Figure 4 and Figure 5 As shown, the present invention is a three-degree-of-freedom crank-link mechanical type all-electric servo CNC sheet metal bending machine, including a frame 1 , an upper slider 2 , a lower slider 3 , an upper die 4 and a lower die 5 . The upper sliding block 2 and the lower sliding block 3 are arranged opposite to each other up and down, and can move up and down along the frame. The upper sliding block 2 is symmetrically provided with upper guide grooves 24 for guiding and sliding, and the corresponding position on the frame is provided with an upper guide for inserting The upper guide block 25 can slide up and down along the upper guide groove 24; the lower slider 3 is provided with a lower guide groove 26 for guiding and sliding on the left and right symmetrically; The guide groove 26 is a lower guide block 27 that slides up and down. The upper die 4 and the lower die 5 cooperate with each other to realiz...

Example Embodiment

[0055] Example 2

[0056] The structure of Embodiment 2 is the same as that of Embodiment 1, except that the length of the upper crank 6 is smaller than the length of the lower crank 8, the upper drive mechanism drives the upper slider to realize low-speed and small stroke motion, and the lower drive mechanism drives the lower slider. Realize high-speed large-stroke movement. The working condition of the bending machine is a typical variable speed and variable load condition. The fast down and return stages are the movement stages of high speed, low load and large stroke, and the working stage is the movement stage of low speed, large load and small stroke. Therefore, the present invention adopts the lower driving mechanism to drive the lower sliding block to realize the fast down and return stages, and the upper driving mechanism drives the upper sliding block to realize the working advance stage.

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PUM

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Abstract

The invention discloses a three-degree-of-freedom crank connecting rod mechanical all-electric servo numerical control plate material bending machine. The bending machine comprises a rack, an upper sliding block, a lower sliding block, an upper die and a lower die, wherein the upper sliding block and the lower sliding block can move up and down along the rack; the upper die and the lower die which are matched and bent are fixedly connected with the upper sliding block and the lower sliding block, the upper sliding block is connected with an upper driving mechanism used for driving the upper sliding block to move, and two lower driving mechanisms used for driving the lower sliding block to move are symmetrically connected to the lower sliding block in a bilateral symmetry mode. The three-degree-of-freedom crank connecting rod mechanical all-electric servo numerical control plate material bending machine is suitable for large-tonnage working conditions 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, high in speed, low in manufacturing cost and the like.

Description

technical field [0001] The invention relates to a plate bending machine, in particular to a three-degree-of-freedom crank-connecting rod mechanical all-electric servo numerical control plate bending machine. 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, digitization and intelligence are the future development trends. The driving methods of CNC bending machines include hydraulic drive and mechanical electric servo drive. At present, hydraulic drive is the main method, but mechanical electric servo is the future development trend. [0003] The advantage of hydraulic drive is large tonnage, which is easy to realize the bending processing of large format and thick plates; the disadvantages of hydraulic drive are as follows: 1. Large noise, high energy consumption, hydraulic oil leakage and environmental pollution; 2. High cost...

Claims

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Application Information

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IPC IPC(8): B21D5/02B21D5/00B21D37/12B21D37/00B21C51/00
CPCB21C51/00B21D5/004B21D5/0209B21D5/0227B21D37/00B21D37/12
Inventor 徐丰羽孟凡昌肖敏蒋国平
Owner NANJING UNIV OF POSTS & TELECOMM
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