CN-122008615-A - Device and method for measuring tonnage of press

CN122008615ACN 122008615 ACN122008615 ACN 122008615ACN-122008615-A

Abstract

The invention relates to a device and a method for measuring tonnage of a press. The device comprises an electric control module, a software data processing module, a human-computer interface output module, at least two pressure points and at least two pressure sensors, wherein the pressure points comprise a left pressure point and a right pressure point, the two pressure sensors are respectively arranged at the left pressure point and the right pressure point and are used for measuring the pressure change during static pre-pressure and dynamic stamping, electric signals measured by the two pressure sensors are transmitted to the electric control module, the electric control module reads the signals and stores data, and the software data processing module reads the data in the electric control module and transmits the data to the human-computer interface output module after processing the data through an algorithm. The invention has the advantages of convenient installation and maintenance, no need of tonnage calibration in the later period, reduced maintenance cost of equipment manufacturers and customers, and improved tonnage measurement accuracy.

Inventors

DUAN WUZHI
LI XIAODONG
CHEN CHUN
DING HAIYANG
XU FUCHAO

Assignees

扬州锻压机床有限公司

Dates

Publication Date: 20260512
Application Date: 20251226

Claims (4)

1. The device for measuring the tonnage of the press is characterized by comprising an electric control module (5), a software data processing module (6), a man-machine interface output module (7), at least two pressure points and at least two pressure sensors; the pressure points comprise a left pressure point (1) and a right pressure point (2), the pressure sensors are a left pressure sensor (3) and a right pressure sensor (4) which are respectively arranged at the left pressure point (1) and the right pressure point (2) and are used for measuring the pressure changes during static pre-pressure and dynamic stamping, The electronic control module (5) is used for reading signals and storing data, and the software data processing module (6) is used for reading data in the electronic control module (5) and sending the data to the human-computer interface output module (7) after the data are processed by an algorithm.
2. The device for measuring tonnage of press according to claim 1, wherein the software data processing module (6) is used for reading and processing the data temporarily stored in the electronic control module (5) and outputting the final tonnage value.
3. The device for measuring tonnage of press according to claim 1, wherein the man-machine interface output module (7) is used for displaying tonnage values output by the data processing software.
4. A method for measuring tonnage of a press is characterized by comprising the following steps: 1) The method comprises the steps of inputting precompression to a pressure point oil cylinder through an oil pump, wherein the precompression is 50% of the maximum using tonnage of the press; 2) In the stamping process, the pressure sensor measures the oil pressure change in real time and outputs an electric signal; 3) The electronic control module (5) receives and converts the electric signals into digital data and stores the digital data temporarily; 4) The software data processing module (6) reads temporary storage data and outputs tonnage values after algorithm processing; 5) And displaying the final tonnage value through a human-computer interface output module (7).

Description

Device and method for measuring tonnage of press Technical Field The invention relates to the technical field of presses, in particular to a device and a method for measuring tonnage of a press. Background At present, in the field of presses, the principle that strain gauges have different deformation amounts under different tonnages is generally adopted for measuring the tonnages of a machine tool, the strain gauges are arranged on stand columns or connecting rods, and normally have 2 or 4 components, the tonnage range which can be measured by the measuring method is large, and the tonnage data measured after calibration is more accurate. However, as the service time increases, the system may become increasingly inaccurate in tonnage due to various principles, requiring periodic or irregular tonnage calibration, wasting human resources and financial resources. Disclosure of Invention The invention aims to provide a device and a method for measuring tonnage of a press, which are used for solving the problems in the prior art. The technical scheme of the invention is that the device for measuring the tonnage of the press comprises an electric control module, a software data processing module, a man-machine interface output module, at least two pressure points and at least two pressure sensors; the pressure points comprise a left pressure point and a right pressure point, the two pressure sensors are respectively arranged at the left pressure point and the right pressure point and are used for measuring the static pre-pressure and the pressure change during dynamic punching, The electronic control module reads the signals and stores the data, and the software data processing module reads the data in the electronic control module and sends the data to the human-computer interface output module after the data are processed by an algorithm. Further, the software data processing module is used for reading and processing the data temporarily stored by the electronic control module and outputting a final tonnage value. Further, the man-machine interface output module is used for displaying the tonnage value output by the data processing software. A method of determining tonnage of a press, comprising the steps of: 1) The method comprises the steps of inputting precompression to a pressure point oil cylinder through an oil pump, wherein the precompression is 50% of the maximum using tonnage of the press; 2) In the stamping process, the pressure sensor measures the oil pressure change in real time and outputs an electric signal; 3) The electronic control module receives and converts the electric signals into digital data and temporarily stores the digital data; 4) The software data processing module reads temporary storage data and outputs tonnage values after algorithm processing; 5) And displaying the final tonnage value through a human-computer interface output module. The device has the advantages that the oil pressure value of each pressure point is measured by 2 or 4 pressure sensors, signals are transmitted to the electronic control module, after data are read and stored, the software data processing module reads the data, invalid values are removed through an algorithm, and a final numerical value is obtained after effective data are processed and is output to the human-computer interface output module. Because of the characteristics of the machine tool, each pressure point has a pre-oil pressure, which is usually 50% of the maximum use tonnage of the machine tool, and 50% -105% of the maximum use tonnage of the machine tool can be measured. Under normal conditions, the machine tool is rarely used within 50% of the maximum tonnage, and the machine tool performance is seriously wasted. Therefore, 50% -105% of the maximum tonnage value of the machine tool can be measured, and the use occasion of the machine tool can be met. Drawings Fig. 1 is a schematic diagram of the operation of the present invention. In the figure, 1 is a left pressure point, 2 is a right pressure point, 3 is a left pressure sensor, 4 is a right pressure sensor, 5 is an electronic control module, 6 is a software data processing module, and 7 is a human-computer interface output module. Detailed Description The device for measuring the tonnage of the press comprises an electric control module 5, a software data processing module 6, a human-computer interface output module 7, at least two pressure points and at least two pressure sensors; The pressure points comprise a left pressure point 1 and a right pressure point 2, the pressure sensors are a left pressure sensor 3 and a right pressure sensor 4 which are respectively arranged at the left pressure point 1 and the right pressure point 2 and are used for measuring the pressure changes during static pre-pressure and dynamic stamping, The electric signals measured by the two pressure sensors are transmitted to the electric control module 5, the electric control module 5 reads the signals and s