CN206039266U - Processing device - Google Patents

Abstract

A processing device comprises a central control unit, a processing quality prediction unit, a processing unit and a tool compensation unit, wherein the processing quality prediction unit, the processing unit and the tool compensation unit are respectively electrically connected with the central control unit, the processing quality prediction unit implements a virtual prediction processing quality method to predict the processing quality of a workpiece and outputs accurate quality data to the central control unit, and a tool processing path is generated to be used by the processing unit to process the workpiece, the central control unit judges data from the processing quality prediction unit in advance and calculates tool compensation data from the tool compensation unit, the tool compensation unit provides the tool compensation data to the processing quality prediction unit to form a new processing path, and the processing unit processes the workpiece by executing the compensated processing path.

Description

Processing device

technical field

The utility model relates to a processing device, in particular to a processing device which can automatically perform tool compensation to change the processing path.

Background technique

In order to improve the efficiency and quality of workpiece processing, the industry uses numerically controlled processing devices as processing tools. After the workpiece is designed, it directly converts the designed data and processing parameters into the processing path of the workpiece, such as computer-aided design (CAD) and A computer-aided manufacturing (CAM) combination device. Although the aforementioned CAD CAM manufacturing device can achieve a certain degree of stable quality and processing efficiency, it cannot effectively predict the processing quality of each workpiece during the processing process. The processed workpiece is only It is possible to use the measuring device to measure the size and other processed products such as roughness. Not only is it time-consuming, but when problems with the size or other processing quality of the workpiece are detected, many defective workpieces have been produced, which increases the number of defective workpieces. In order to solve the problem that the processing quality cannot be detected immediately during the processing of workpieces, a method for predicting the processing quality of workpieces has been produced. Combining with the existing numerical processing devices, it can effectively improve the aforementioned defects. Patent Certificate No. TW I481978B "Prediction Method of Processing Quality of Machine Tools", although the above-mentioned prediction method of processing quality can directly predict the processing quality and correct the processing path on the processing line, but in the compensation of the processing tool, it still needs to be processed. Relying on experience and manually inputting tool compensation data in a timely manner to correct the machining path of the workpiece. This method of judging the tool compensation data based on experience and manually inputting it will easily affect the machining accuracy of the workpiece. Therefore, the utility model is mainly Improve the lack of manual tool compensation.

Utility model content

Therefore, the purpose of this utility model is to provide a processing device that can automatically perform tool compensation to generate a new processing path.

Therefore, the processing device of the present utility model has a central control unit, and a processing quality prediction unit, a processing unit and a tool compensation unit respectively electrically connected to the central control unit. The processing quality prediction unit can implement a virtual prediction The processing quality method is used to predict the processing quality of the workpiece, and output accurate quality data to the central control unit, and generate the tool processing path for the processing unit to process the workpiece. The central control unit first judges the data from the processing quality prediction unit, Then the tool compensation data is calculated by the tool compensation unit. The tool compensation unit provides the tool compensation data to the machining quality prediction unit to form a new machining path, and then the machining unit executes the compensated machining path to the workpiece. processing; from the above, it can be known that the processing device combines the processing quality prediction unit and the tool compensation unit, and uses the central control unit as the control interface of each unit, which can automatically and effectively generate a new processing path after tool compensation, instead of the operator relying on experience Or the operation mode of tool compensation after manual measurement can effectively improve the processing efficiency.

In one embodiment of the present invention, the processing device also has a workpiece transport unit electrically connected to the central control unit, the workpiece transport unit transports the workpiece to the processing unit for processing, and transmits the information of the transport workpiece to The central control unit.

In an embodiment of the present invention, the workpiece conveying unit is a mechanical arm.

Description of drawings

Fig. 1 is a block diagram of the processing device of the present invention.

【Symbol Description】

1 processing device

2 central control unit

3 Processing quality prediction unit

4 processing unit

5 Tool Compensation Unit

6 Workpiece handling unit

detailed description

Referring to Fig. 1, a processing device 1 of a preferred embodiment of the present utility model is used for processing the workpiece, and it has a central control unit 2, and a processing quality prediction unit 3, a processing quality prediction unit 3, a Processing unit 4, a tool compensation unit 5 and a workpiece handling unit 6, the processing quality prediction unit 3 is to use the technology of Taiwan Patent Certificate No. TW I481978 B "prediction method of the processing quality of machine tools", which mainly uses a computer Aided design (CAD) forms the contour of the workpiece and its size and tolerance, and then uses computer-aided manufacturing (CAM) to generate the processing path from the aforementioned size and tolerance and the characteristics of the processing unit 4. In addition, the processing quality prediction unit 3 is used to establish quality When predicting the model, at least one product accuracy item needs to be specified. The aforementioned product accuracy item includes roughness and/or dimensional deviation, etc., and dimensional deviation includes straightness, edge angle, perpendicularity, parallelism and/or circle At the same time, the product accuracy item is linked to the processing path, and multiple relationships between the product accuracy item and the processing path are obtained. Then, the processing unit 4 is used to process a plurality of workpiece samples according to the processing path for the workpiece, and collected in Multiple sets of sample detection data of multiple workpiece samples related to the processing path during processing. After the sample operation is completed, the algorithm suppresses the noise of the detection data and converts the workpiece sample detection data into sample features of the corresponding feature type. Data, after finishing the processing operation of the workpiece sample, measure the product accuracy items of the workpiece sample to obtain a set of quality sample data (accuracy value), and then use the feature data and quality sample data of the workpiece sample to predict the algorithm and the relationship between the aforementioned product accuracy item and the processing path to establish a prediction model for the product accuracy item, that is, the feature data obtained when the workpiece sample is processed by the processing unit 4, the quality sample data and the workpiece. Accuracy values are used to form a predictive model, and accurate quality data are output to the central control unit 2 at the same time.

The central control unit 2 can first judge the data from the processing quality prediction unit 3, and then transmit the data to the tool compensation unit 5. After the tool compensation unit 5 calculates the tool compensation data, it is transmitted to the processing quality prediction unit 3 to form A new processing path, the processing path after the compensation is executed by the processing unit 4 to process the workpiece. The workpiece transport unit 6 is used to move the workpiece to the processing unit 4 or move away from the processing unit 4. In this embodiment, it is A mechanical arm, which can transmit the characteristic information of which specification workpiece to be transported to the central control unit 2, for example, the workpiece of the type A is transported, and the characteristic information is stored in the central control unit 2 according to the tool compensation data , that is, when the workpiece of this type is processed by the processing unit 4, the tool compensation data can be taken out for reference application.

The utility model processing device 1 is for the workpiece to be processed, from the information of the design process to generate a processing path through the processing quality prediction unit 3, and the workpiece is transported to the processing unit 4 by the workpiece handling unit 6 for processing, and the workpiece handling unit 6 Immediately record the characteristic information of the transported workpiece. After the workpiece is processed, it is moved to the storage position by the workpiece handling unit 6. During the processing process, the information or data of various qualities detected synchronously is used to predict the quality of the workpiece. If the quality of the workpiece is unqualified, The processing quality prediction unit 3 immediately corrects and generates a new processing path, therefore, the defect rate of the workpiece can be greatly reduced, and the timeliness of the quality measurement of the workpiece can be improved at the same time, and then the processing quality prediction unit 3 will provide the accurate data of the measured workpiece quality To the central control unit 2, the central control unit 2 judges the data with high reliability and transmits it to the tool compensation unit 5, and the tool compensation unit 5 calculates the data that the tool needs to be compensated according to the quality or size data of the original design of the workpiece, The compensated data is then transmitted to the machining quality prediction unit 3 to generate a new machining path, and the new workpiece is processed according to the compensated machining path to ensure the stability of the machining quality of the workpiece.

The processing device 1 of the utility model combines the processing quality prediction unit 3 and the tool compensation unit 5, and uses the central control unit 2 as the connection interface of the aforementioned two units, which can automatically and effectively generate a new processing path after tool compensation to replace the operator The operation method of tool compensation based on experience or manual measurement can effectively improve the processing efficiency, and at the same time cooperate with the workpiece handling unit 6 to record the characteristic information of the workpiece being transported, that is, the tool compensation data and workpiece characteristic information can be combined, which is convenient for future The feature information is the processing operation of the workpiece.

Claims (3)

1. a kind of processing unit (plant), it is characterised in which has a central control unit, and respectively with central control unit electricity One processing quality predicting unit of gas connection, a machining cell and a cutter compensation unit, the processing quality predicting unit are real Apply a kind of virtual prognostication processing quality method and set up quality prediction model, to predict the processing quality of workpiece, and export accurate Qualitative data to the central control unit, and produce tool sharpening path and workpiece be processed for the machining cell, The central control unit is to judge the data from processing quality predicting unit in advance, then by the data by the cutter compensation list Unit calculates cutter compensation data, and the cutter compensation unit is to be supplied to the processing quality prediction single the cutter compensation data Unit forms new machining path, then the machining path performed after compensation by the machining cell is processed to workpiece.

2. processing unit (plant) according to claim 1, it is characterised in that the processing unit (plant) also with one with central authorities control singly The workpiece handling unit of unit's electrical connection, the workpiece handling unit is to be processed workpiece handling to machining cell, and will be removed The information transfer of fortune workpiece is to the central control unit.

3. processing unit (plant) according to claim 2, it is characterised in that the workpiece handling unit is a mechanical arm.