TWI816270B - Sequence method for electrode fixture of automatic electric discharge machine - Google Patents

Abstract

The present invention relates to a sequence method for electrode fixture, comprising establish a plurality of electrode fixture information according to a plurality of electrode fixtures with an electrical discharge machining condition, the electrode fixture information are divided into a rough machining category, a fine machining category and a sprue machining category by the electric discharge machine. The electrical discharge machine not only arranges the rough machining category, the fine machining category and the sprue machining category in sequence by the categories, but also arranges the electrode fixture information of each category from large to small according to a machining region size of the electrode fixtures. Therefore, the sequence method can accurately arrange a machining sequence for the electrode fixtures, and the machining sequence will not be arranged wrong due to an operator that lacks of experience.so that the electrical discharge machine can choose the electrode fixture properly at the right time.

Description

Discharge machining sequencing method for automated electrode fixtures

The present invention relates to an electrical discharge machining sequencing method for automated electrode jigs used in conjunction with an electrical discharge machining machine. In particular, it relates to a method that can correctly arrange the order of use of a plurality of electrode jigs before the electrical discharge machining machine performs electrical discharge processing on the workpiece. Discharge machining sequencing method for automated electrode fixtures.

At present, almost all the objects to be processed are processed through traditional processing machines (such as lathes, milling machines, drill presses, planers or grinders) so that the objects to be processed can reach the preset shape and size. With the continuous advancement of science and technology, regardless of the Both the size specifications of the workpiece and the surface accuracy of the workpiece are constantly improving, and various precision finishing machines (such as electric discharge machines) have evolved to perform precision processing of the workpiece.

Among them, it is known that most precision operations use non-traditional cutting methods called Electrical Discharge Machining (EDM). Electrical discharge machining mainly moves the electrode fixture of the electric discharge machine to the surroundings of the workpiece. Next, the discharge The processing machine applies voltage through the electrode fixture to generate a spark discharge phenomenon. The electric discharge processing machine uses the high temperature generated by the spark discharge phenomenon to melt and cut the workpiece, thereby allowing the workpiece to meet the precision machining requirements.

However, in general, during the process of discharge machining of the workpiece, the electric discharge machine will constantly replace various electrode fixtures, so that the electric discharge machine uses the selected electrode jig to perform discharge processing on the workpiece at the corresponding time point. Then the workpiece can reach the preset shape and size. However, currently the order of use of multiple electrode jigs must be arranged based on the practical experience of the operator. Once the operator arranges the use order of some electrode jigs in the wrong order, it will As a result, the electric discharge machine uses the wrong electrode fixture at the corresponding time point. Not only can the workpiece not be processed into the preset shape and size by the electric discharge machine, the workpiece may even be processed into other shapes and must be processed. Scraping will relatively increase material costs.

The main purpose of the present invention is to provide an automated discharge machining sequencing method for electrode jigs, so that the order of use of multiple electrode jigs can be correctly arranged without relying on the operator's practical experience. Time points using selected electrode fixtures.

In order to achieve the aforementioned goals, the discharge processing sequencing method of automated electrode fixtures of the present invention is used to arrange the use sequence of multiple electrode fixtures, and includes the following steps: an information creation step, an electrode fixture processing classification step, and a discharge area size. a sequencing step and a processing classification sequencing step.

The above-mentioned information creation step: an electronic device creates an electrode fixture information based on the discharge processing conditions of each of the above-mentioned electrode fixtures, and the above-mentioned electrode fixture information has a processing classification item and a processing area value, wherein the above-mentioned processing classification item It is used to indicate that the above-mentioned electrode fixture is used for rough machining, finishing or runner processing, and the above-mentioned processing area value is used to indicate the size of the area where the above-mentioned electrode fixture can perform electrical discharge processing on the workpiece.

The above-mentioned electrode jig processing classification step: obtain the above-mentioned plurality of electrode jig information from an electric discharge machine, and the above-mentioned electric discharge machine classifies the above-mentioned plurality of electrode jig information into a rough machining category and a finishing machining based on the above-mentioned processing classification items. category as well as a sprue processing category.

The step of arranging the above-mentioned discharge area size order: the above-mentioned electric discharge processing machine arranges the plurality of electrode jig information of the above-mentioned rough processing category, finishing category and runner processing category from large to small according to the numerical value of the above-mentioned processing area value. , so that the above rough machining categories, finishing machining categories and runner machining categories are transformed into a rough machining sequence, a finishing machining sequence and a runner machining sequence respectively.

The above-mentioned processing classification sequence arrangement steps: the above-mentioned rough machining sequence, finishing sequence and sprue processing sequence are arranged by the above-mentioned electric discharge machine, so that the above-mentioned electric discharge machine forms a sequence of the above-mentioned rough machining sequence, finishing sequence and sprue processing sequence. Electrical discharge machining sequence table of machining sequence.

In this embodiment, when a part of the electrode fixture information in one of the rough machining categories, finishing machining categories and runner machining categories contains the same numerical machining area value, the electrical discharge processing machine performs the discharge area In the process of arranging the size order, the above-mentioned electrode fixture information of the parts with the same processing area value will be randomly arranged in order.

The characteristic of the present invention is that when the electric discharge machine uses the discharge machining sorting method of the automated electrode jig, the electric discharge machine first classifies the plurality of electrode jig information into rough machining categories and finishing machining categories based on the processing classification items of the electrode jig information. and runner processing category. Next, the electric discharge machine not only arranges the three categories in sequence into rough processing category, finishing category and runner processing category, but the electric discharge machine also separates the roughing category, finishing category and runner processing category respectively. The plurality of electrode jig information of the three runner processing categories are arranged from large to small according to the numerical value of the processing area, so that the electric discharge machining machine can generate an electric discharge machining sequence table, and then the electric discharge machining machine can process the workpiece according to the electric discharge machining sequence table. Therefore, the processing sequence arrangement method of the present invention can correctly arrange the use sequence of multiple electrode fixtures without relying on the operator's practical experience, so that the use sequence of multiple electrode fixtures will not depend on the operator's practical experience. Insufficient practical experience leads to incorrect sequencing. The relative electric discharge machining machine can use the selected electrode jig at the relative time point.

In order to facilitate a further clear and detailed understanding of the structure, use and characteristics of the present invention, preferred embodiments are enumerated and described in detail with reference to the drawings as follows:

Please refer to Figures 1 and 2. The discharge machining sorting method of automated electrode fixtures of the present invention is used with an electric discharge processing machine 10. As shown in Figure 2, the electric discharge processing machine 10 is equipped with a plurality of electrode fixtures 11, and, The electrical discharge machine 10 has a microprocessor 12 that can process information, a memory unit 13 that can store information, and a reading unit 14 that can obtain external information. Both the memory unit 13 and the reading unit 14 are electrically connected to Microprocessor 12.

Please refer to Figures 1 and 3. Before the electrical discharge machine 10 performs electrical discharge processing on a workpiece 30 (as shown in Figure 7), the electrical discharge machine 10 first executes the processing sequencing method of the automated electrode fixture 11. First, The operator prepares an electronic device 20 (such as a computer), and uses a 3D drawing software installed on the electronic device 20 to draw according to the size of each electrode fixture 11, so that the electronic device 20 stores a plurality of 3D drawing, and then each electrode fixture 11 has a 3D drawing corresponding to the shape. Next, the operator uses the electronic device 20 to individually create an electrode fixture information according to the discharge processing conditions of each electrode fixture 11, Each of the above-mentioned electrode fixture information is one-to-one corresponding to one of the electrode fixtures 11, and the operator inputs each electrode fixture 11 into each of the above-mentioned electrode fixture information through the electronic device 20. For rough machining, finishing machining or runner processing, each of the above electrode jig information includes a processing classification item indicating that the electrode jig 11 is used for rough machining, finishing machining or runner processing.

In addition, the electronic device 20 obtains each 3D image file, and calculates according to the size of the 3D image file when each of the above-mentioned electrode fixtures 11 can perform electrical discharge processing on the workpiece 30 (as shown in FIG. 7 ). , the intersection area between the electrode head of the electrode fixture 11 and the workpiece 30 , and then the electronic device 20 will form a processing area value in each electrode fixture information to indicate that the electrode fixture 11 can perform processing on the workpiece 30 The size of the electrical discharge machining area, and when each of the above-mentioned electrode jig information has the above-mentioned processing classification item and processing area value, the electronic device 20 will randomly arrange a plurality of the above-mentioned electrode jig information to form an electrode jig list, and then An information creation step S1 is completed. In this embodiment, the electric discharge processing machine 10 wants to perform electric discharge processing on only a single workpiece 30 or a plurality of workpieces 30 at the same time. When each workpiece 30 is processed by electrical discharge, the electrode tips of some electrode fixtures 11 will have the same shape and size, so that the processing classification items and processing area values of part of the electrode fixture information will have the same numerical content.

Please refer to FIGS. 1 and 4 . After completing the information creation step S1 , an electrode jig processing and classification step S2 begins. When performing the electrode jig processing and classification step S2 , the electronic device 20 is electrically connected to the electrical discharge machine 10 The reading unit 14 enables the reading unit 14 to obtain the above-mentioned electrode jig list having a plurality of electrode jig information from the electronic device 20 , and the reading unit 14 processes the above-mentioned electrode jig list through the microprocessing of the electric discharge machine 10 The microprocessor 12 of the electric discharge machine 10 transmits it to the memory unit 13 of the electric machine, so that the memory unit 13 stores a plurality of the electrode fixture information. After that, the microprocessor 12 of the electric discharge machine 10 stores the plurality of electrode fixture information in the memory unit 13. The information is classified according to the above-mentioned processing classification items, so that part of the above-mentioned electrode jig information is classified into a rough machining category for rough machining, and another part of the above-mentioned electrode jig information is classified into a finishing machining category for finishing. category, then the remaining part of the above-mentioned electrode fixture information is classified into a sprue processing category used for sprue processing. In this embodiment, when the microprocessor 12 of the electric discharge machining machine 10 stores a plurality of data in the memory unit 13 After the above-mentioned electrode jig information is classified into rough machining categories, finishing machining categories, and runner machining categories, the plurality of electrode jig information belonging to the rough machining category will be randomly arranged, and the plurality of electrode jig information belonging to the finishing category will also be arranged. will be randomly arranged, the plurality of electrode jig information belonging to the sprue processing category will also be randomly arranged.

Please refer to FIGS. 1 and 5 . When the microprocessor 12 of the electric discharge machine 10 classifies the plurality of electrode fixture information stored in the memory unit 13 into rough machining categories, finishing machining categories and sprue machining categories, the process starts. A discharge area size sequence arrangement step S3 is performed. First, the microprocessor 12 of the electric discharge machine 10 first arranges and combines the plurality of electrode jig information belonging to the rough machining category from large to small according to the numerical size of the above-mentioned processing area value. , so that the rough machining category is transformed into a rough machining order in which the electrode jig information is arranged from large to small according to the machining area value, and then the electrode jig information with the largest machining area value in the rough machining order is arranged in the rough machining order. At the first position in the rough machining sequence, the electrode fixture information with the smallest processing area value in the rough machining sequence is arranged at the last position in the rough machining sequence. Next, the microprocessor 12 then based on the numerical value of the above processing area value. First, arrange and combine the plurality of electrode jig information belonging to the finishing category from large to small, so that the plurality of electrode jig information belonging to the finishing category is transformed into a finishing order in which the plurality of electrode jig information is arranged from large to small according to the processing area value. After that, the microprocessor 12 first arranges and combines the plurality of electrode fixture information belonging to the runner processing category from large to small according to the numerical value of the above-mentioned processing area value, so that the information belonging to the runner processing category is transformed into a plurality of electrodes. The fixture information is arranged in the runner processing sequence from large to small according to the processing area value. Among them, the first electrode fixture information in the finishing sequence is the processing area value with the largest value in the finishing sequence. The relative finishing sequence The last electrode fixture information is the processing area value with the smallest value in the finishing sequence, and the first electrode fixture information in the runner processing sequence is the processing area value with the largest value in the runner processing sequence, relative to the gate. The last electrode fixture information in the runner machining sequence is the processing area value with the smallest value in the runner machining sequence. Therefore, when the above rough machining category, finishing machining category and runner machining category are converted into the above rough machining sequence, fine machining category respectively. When the processing sequence and the sprue processing sequence are determined, the discharge area size sequence arrangement step S3 is completed.

In this embodiment, as shown in FIG. 5 , there are two electrode fixture information with processing area values of 421.57 in the rough machining category, so that the electric discharge processing machine 10 will perform the discharge area size sequence arrangement step S3. Arrange the information of the two electrode fixtures with a processing area value of 421.57 together, so that the information of the two electrode fixtures with a processing area value of 421.57 are randomly arranged in order, and then the two electrode fixtures with a processing area value of 421.57 are arranged together. The information will not contain electrode fixture information with other machining area values. However, the electrode fixture information with the same machining area value in the rough machining category is only for convenience of explanation, that is, when the finishing machining category and the runner machining category When one part of the electrode fixture information contains the same processing area value, the electrical discharge processing machine 10 will randomly randomize the electrode fixture information with the same processing area value during the discharge area size sequence arrangement step S3. arrangement.

Referring to Figures 1 and 6, the discharge area size sequence arrangement step S3 is completed, and a processing classification sequence arrangement step S4 is started. The microprocessor 12 of the electric discharge processing machine 10 has a rough machining sequence, a finishing machining sequence and a sprue machining sequence. The sequence of the three is rough machining sequence, finishing machining sequence and runner machining sequence, so that the electric discharge machine 10 forms an electric discharge machining sequence table in which the sequence is rough machining sequence, finishing machining sequence and runner machining sequence. Please refer to As shown in FIGS. 1 and 7 , after the electrical discharge processing machine 10 forms the electrical discharge machining sequence table, the electrical discharge processing machine 10 completes all the steps of the electrical discharge machining sequencing method of the automated electrode fixture of the present invention, and then the electrical discharge processing machine 10 can perform the discharge processing through discharge processing. The processing sequence table selects different electrode fixtures 11 to perform electrical discharge processing on the workpiece 30 .

The above-mentioned embodiments are only for the convenience of illustrating the present invention and are not intended to limit the invention. Various simple deformations and modifications may be made without departing from them, and shall still be included in the scope of the following patent applications.

10: Electric discharge processing machine 11:Electrode fixture 12:Microprocessor 13: Memory unit 14:Reading unit 20: Electronic devices 30: Processed object S1: Information creation steps S2: Electrode fixture processing and classification steps S3: Discharge area size sequence arrangement steps S4: Processing classification sequence arrangement steps

Figure 1 is a step flow chart of the electrical discharge machining sequencing method of the automated electrode fixture of the present invention; Figure 2 is a block diagram of an electrical discharge machine; Figure 3 is a schematic diagram of the information creation steps in Figure 1; Figure 4 is a schematic diagram of the processing and classification steps of the electrode fixture in Figure 1; Figure 5 is a schematic diagram of the sequence arrangement steps of the discharge area size in Figure 1; Figure 6 is a schematic diagram of the processing and classification sequence arrangement steps in Figure 1; and FIG. 7 is a schematic diagram of the electrical discharge machining steps in FIG. 1 .

S1: Information creation steps S2: Electrode fixture processing and classification steps S3: Discharge area size sequence arrangement steps S4: Processing classification sequence arrangement steps

Claims (1)

An automated discharge processing sequencing method of electrode fixtures is used to arrange the use sequence of multiple electrode fixtures, and includes: an information creation step: an electronic device establishes an electrode fixture based on the discharge processing conditions of each of the above-mentioned electrode fixtures. Tool information, and the above-mentioned electrode jig information has a processing classification item and a processing area value, wherein the above-mentioned processing classification item is used to indicate that the above-mentioned electrode jig is used for rough machining, finishing machining or runner processing, and the above-mentioned processing area The numerical value is used to represent the size of the area where the above-mentioned electrode jig can perform electrical discharge processing on the workpiece; an electrode jig processing classification step: obtaining the above-mentioned plurality of electrode jig information from an electric discharge processing machine, and the above-mentioned electric discharge processing machine performs the above-mentioned processing according to the Classification items are used to classify the plurality of electrode jig information into a rough machining category, a finishing machining category and a sprue processing category; a discharge area size sequence arrangement step: the above-mentioned electric discharge processing machine combines the above rough machining category, the finishing category and the sprue processing category. The plurality of electrode jig information of the three runner processing categories are arranged from large to small according to the numerical value of the above-mentioned processing area, so that the above-mentioned rough processing category, finishing category and runner processing category are transformed into a rough processing sequence. A finishing sequence and a sprue processing sequence; and a processing classification sequence arrangement step: the above-mentioned roughing sequence, finishing sequence and sprue processing sequence are arranged by the above-mentioned electric discharge machine, so that the above-mentioned electric discharge machine forms a sequence. The sequence is the electrical discharge machining sequence table of the rough machining sequence, finishing machining sequence and runner machining sequence; wherein, when part of one of the rough machining categories, finishing machining categories and runner machining categories, the above electrode jig information contains When the processing area values are the same, the above-mentioned electric discharge processing machine will randomly arrange a part of the above-mentioned electrode fixture information with the same processing area value in order during the step of arranging the discharge area size.

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