Electrical discharge machining device

Abstract

The utility model relates to a kind of discharge processing devices, include at least one loading platform and a integrated discharge processing unit.Integrated discharge processing unit is integrated by multiple modular discharge processing units with modular design, and its quantity can be flexibly adjusted according to processing target area or required electrode quantity.Each modular discharge processing unit is configured with at least one discharge electrode, so that after integration, multiple discharge electrodes can simultaneously or sequentially perform discharge processing procedures on single or multiple objects to be processed.Multiple modular discharge processing units can share or each have power supply units, upper machine heads, lower machine heads, conductive plates and wire outlet wheels / wire collection wheels and other components, and can be configured with insulating members and slag removal units to improve processing stability and slag removal efficiency.The utility model provides a highly flexible, efficient and high-quality discharge processing solution by modular integration design.

Description

Technical Field

[0001] This utility model relates to a processing device, and more particularly to an electrical discharge machining device. Background Technology

[0002] Electrical discharge machining (EDM) is a non-traditional machining technique that uses the high temperatures generated by periodic pulsed discharges between a tool electrode and the workpiece to etch away conductive materials. Wire EDM, in particular, uses a continuously moving metal wire (wire electrode) as the tool electrode to cut the workpiece along a predetermined path. It is widely used in mold making, precision parts machining, aerospace, and semiconductor wafer cutting, and has significant advantages, especially for machining high-hardness materials or complex contours.

[0003] However, traditional wire EDM (Electrical Discharge Machining) devices typically use only a single wire electrode for each machining process. When multiple cuts are required on a single workpiece, or when multiple workpieces need to be processed simultaneously, this single-wire machining mode inevitably requires sequential execution or the use of multiple devices, resulting in lengthy processing times and low overall production efficiency. Although there have been attempts to develop multi-wire EDM, existing multi-wire devices are often structurally fixed and lack flexibility, making it difficult to quickly adjust to different processing requirements (such as the number of cuts, spacing, or workpiece size). Furthermore, during EDM, the efficiency of slag removal directly affects the stability and surface quality of the machining process. This problem is particularly severe in multi-wire or high-speed cutting, and existing technologies often fail to provide solutions that can adapt to varying processing configurations while ensuring efficient slag removal. Therefore, developing an EDM device with flexible configuration capabilities that balances processing efficiency and slag removal performance has become a crucial issue that urgently needs to be addressed in this field. Utility Model Content

[0004] In view of this, one or more objectives of this utility model are to provide an electrical discharge machining apparatus to solve many of the problems of the aforementioned conventional technology.

[0005] To achieve the aforementioned objectives, this utility model proposes an electrical discharge machining (EDM) apparatus, mainly comprising at least one stage for supporting at least one workpiece, the workpiece defining at least one processing target area; and an integrated EDM unit, which is mainly composed of at least one modular EDM unit having a predetermined number, wherein each modular EDM unit is equipped with at least one discharge electrode for performing at least one EDM process on the processing target area on the workpiece supported by the stage, thereby forming at least one processing groove on the processing target area. The EDM apparatus adjusts the predetermined number of modular EDM units accordingly based on the number of processing target areas to be processed, the number of processing grooves to be formed by the EDM process, and / or the number of discharge electrodes used in the EDM process.

[0006] The predetermined number of the modular electrical discharge machining (EDM) units is a plurality of units, wherein the plurality of modular EDM units provide a plurality of discharge electrodes corresponding to the predetermined number of units to perform the EDM process.

[0007] The plurality of discharge electrodes are electrically connected together to a power supply unit or are electrically connected separately to a plurality of power supply units, thereby performing the discharge processing procedure on the workpiece.

[0008] In this integrated electrical discharge machining unit, the plurality of discharge electrodes are distributed parallel to each other along a first direction, and the electrical discharge machining process is performed in a machining travel direction perpendicular to the first direction.

[0009] In this integrated electrical discharge machining unit, the plurality of discharge electrodes have a plurality of discharge sections overlapping the workpiece, and two adjacent discharge sections are separated from each other by at least one insulating member to achieve a substantially non-contact state.

[0010] Each of the plurality of modular electrical discharge machining units includes an electrode guide assembly comprising a lead-out reel shared by the plurality of discharge electrodes, a plurality of lead-out reels having a plurality of limiting grooves, and a take-up reel shared by the plurality of discharge electrodes, wherein the plurality of limiting grooves are used to substantially separate the plurality of discharge electrodes and ensure that the plurality of discharge electrodes are transmitted at a target position.

[0011] Each of the plurality of modular electrical discharge machining units includes an electrode guide assembly comprising a lead-out reel and a take-up reel to substantially separate the plurality of discharge electrodes and ensure that the plurality of discharge electrodes are transported at a target location.

[0012] Each of the plurality of modular electrical discharge machining units further includes a tension adjustment wheel or a plurality of tension adjustment wheels disposed between the lead-out wheel and the take-up wheel, wherein the discharge electrode or the plurality of discharge electrodes corresponds to the tension adjustment wheel or the plurality of tension adjustment wheels, thereby adjusting the tension of one of the discharge electrodes or the plurality of discharge electrodes.

[0013] In this integrated electrical discharge machining unit, the plurality of discharge electrodes are substantially separated by the plurality of limiting grooves of the plurality of dividing wheels, and two adjacent discharge electrodes are spaced apart by at least one insulating member to achieve a substantially non-contact state.

[0014] When the plurality of discharge electrodes perform the discharge processing procedure on the plurality of processing target areas of the workpiece, the plurality of discharge electrodes form a plurality of discharge segments of substantially the same or different sizes on the plurality of processing target areas of the workpiece.

[0015] In this process, all of the plurality of discharge electrodes discharge the plurality of processing target areas of the workpiece, or only some of the plurality of discharge electrodes discharge the plurality of processing target areas of the workpiece.

[0016] In this process, the plurality of discharge electrodes perform the discharge processing on the workpiece with the same or different discharge energies.

[0017] The electrical discharge machining apparatus further includes a slag removal unit or a plurality of such slag removal units for performing a slag removal process on the target area or a plurality of target areas during the electrical discharge machining process.

[0018] The plurality of slag removal units correspond one-to-one with the plurality of discharge electrodes, and are used to provide a plurality of external forces to the processing target area or the plurality of processing target areas respectively in the slag removal process.

[0019] The values ​​of the plurality of external forces provided by the plurality of slag discharge units may be the same or different.

[0020] The slag discharge unit is selected from a group consisting of at least one water spray unit and at least one water suction unit, wherein the number of water spray units is one or more, each of which is paired with one or more water suction units, and the value of the thrust provided by the water spray unit is the same as or different from the value of the suction provided by the water suction unit.

[0021] The slag removal unit is equipped with at least one guiding structure to guide an external force provided by the slag removal unit to a position on the workpiece where the electrical discharge machining process is being performed during the slag removal process.

[0022] The guiding structure moves synchronously with the feeding action of the discharge electrode or one of the plurality of discharge electrodes.

[0023] The guide structure is a sheet-like structure, and the thickness of the sheet-like structure is substantially less than or equal to the width of the machining groove.

[0024] The plurality of discharge electrodes may perform the discharge processing procedure on the same workpiece together, or they may perform the discharge processing procedure on the plurality of workpieces separately.

[0025] Each of the plurality of discharge electrodes corresponds to at least one power supply unit, which may be the same or different, and each is controlled by at least one control unit, which may be the same or different, to perform the discharge processing procedure on the workpiece with at least one processing parameter, which may be the same or different.

[0026] In this process, two adjacent electrodes of a plurality of discharge electrodes sequentially perform the discharge processing procedure on the workpiece at a minimized time interval.

[0027] In this process, two adjacent discharge electrodes of the plurality of discharge electrodes are spaced apart by a distance, and the distance is determined based on the thickness of at least one cut piece to be obtained by the discharge processing procedure on the workpiece, at least one discharge gap of the plurality of discharge electrodes, and / or at least one line diameter of the plurality of discharge electrodes.

[0028] The modular electrical discharge machining unit has a modular design, which allows multiple modular electrical discharge machining units to be detachably combined into the integrated electrical discharge machining unit.

[0029] As described above, the electrical discharge machining apparatus of this utility model has one or more advantages or technical effects:

[0030] (1) Modular design and high integration: Modular EDM units can be easily combined or disassembled to form an integrated EDM unit. This design allows users to flexibly adjust the number of modular units according to actual needs.

[0031] (2) Highly customizable and adaptable: The configuration of the modular unit can be adjusted according to the number of processing target areas, the number of processing grooves to be formed, or the number of discharge electrodes required. It can meet the processing needs of a single or multiple workpieces and supports processing using a single or multiple discharge electrodes.

[0032] (3) Improved Processing Efficiency and Flexibility: Multiple discharge electrodes can process workpieces simultaneously or sequentially, significantly increasing processing speed and throughput. Electrodes can share or each have its own power supply unit, control unit, upper head, lower head, conductive plate, lead / reel, etc., providing configuration flexibility. Different processing parameters can be set, allowing each electrode to perform the same or different processing tasks. The size of the discharge sections can be set to be the same or different to meet diverse processing needs. Only some electrodes can be used for processing, increasing operational flexibility. The spacing between multiple electrodes can be equal or unequal to adapt to different cutting thicknesses or pattern requirements.

[0033] (4) Ensuring machining accuracy and stability: The limiting grooves on the dividing wheel effectively separate and guide multiple discharge electrodes. Insulating components can be used to further ensure insulation between adjacent electrodes, preventing interference and short circuits. Tension adjustment wheels and tension measuring units help maintain the tension stability of each electrode. Vibration measuring units can be used to monitor the stability of the electrodes.

[0034] (5) Enhanced Slag Removal and Processing Quality: Optional slag removal units (such as airflow, waterflow, ultrasonic, or magnetic forces) can be added to effectively remove residues generated during electrical discharge machining. The slag removal unit can be paired with a guide structure to precisely guide the slag removal force to the processing area, improving slag removal efficiency. The same or different slag removal forces can be applied to different electrodes or areas to improve the slag removal effect. Combining thrust and suction generating units can more effectively remove residues and improve processing quality.

[0035] To enable you to have a better understanding of the technical features and effects of this utility model, preferred embodiments and detailed descriptions are provided below. Attached Figure Description

[0036] Figure 1 This is a front view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the lead-out end and take-up end of the discharge electrode are located on different lead-out wheels and take-up wheels, respectively.

[0037] Figure 2 This is a front view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the lead-out end and take-up end of the discharge electrode are respectively located on the same lead-out wheel or take-up wheel.

[0038] Figure 3 This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the number of discharge electrodes is one.

[0039] Figure 4 This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the number of discharge electrodes is multiple.

[0040] Figure 5This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein a plurality of modular electrical discharge machining units share the same component (power supply unit, upper head, lower head and conductive plate).

[0041] Figure 6 This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein a plurality of modular electrical discharge machining units share the same component (lead wheel and / or take-up wheel).

[0042] Figure 7 This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein a plurality of discharge electrodes are spaced apart from each other by insulating members to achieve a substantially non-contact state.

[0043] Figure 8 This is a side view of the electrical discharge machining apparatus of this utility model, wherein the multiple discharge sections of the multiple discharge electrodes are substantially the same in size.

[0044] Figure 9 This is a side view of the electrical discharge machining apparatus of this utility model, wherein the dimensions of the plurality of discharge sections of the plurality of discharge electrodes are substantially different.

[0045] Figure 10 This is a side view of the electrical discharge machining apparatus of this utility model, in which only some of the discharge electrodes are simultaneously subjected to the electrical discharge machining process on the workpiece.

[0046] Figure 11 This is a side view of the electrical discharge machining apparatus of this utility model, wherein the spacing between the plurality of discharge electrodes is equal or unequal to each other.

[0047] Figure 12 This is a side view of the electrical discharge machining apparatus of this utility model, wherein the modular electrical discharge machining unit has a slag removal unit.

[0048] Figure 13 This is a side view of the electrical discharge machining apparatus of this utility model, wherein the slag removal unit of the modular electrical discharge machining unit is equipped with a guide structure.

[0049] Figure 14 This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the external forces applied to the slag removal units of the modular electrical discharge machining units are the same or different from each other.

[0050] Figure 15 This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein a plurality of discharge electrodes jointly perform an electrical discharge machining process on a plurality of workpieces.

[0051] Figure 16This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein a plurality of discharge electrodes each perform an electrical discharge machining procedure on a corresponding workpiece.

[0052] Explanation of reference numerals in the attached figures:

[0053] 10: Electrical Discharge Machining Equipment

[0054] 20: Platform

[0055] 21: Support plate

[0056] 30: Modular EDM Unit

[0057] 31: Upper head

[0058] 31': Lowering the machine head

[0059] 32: Discharge electrode

[0060] 34: Power Supply Unit

[0061] 36: Line reel

[0062] 36': Take-up reel

[0063] 37: Split wheel

[0064] 37': Tension Adjustment Wheel

[0065] 38: Tension Measurement Unit

[0066] 39: Vibration Measurement Unit

[0067] 40: Load-bearing components

[0068] 42: Limiting groove

[0069] 43: Conductive plate

[0070] 50: Holding member

[0071] 56: Insulating components

[0072] 64: Slag Discharge Unit

[0073] 64a: Thrust generating unit

[0074] 64b: Suction generating unit

[0075] 66: Guiding Structure

[0076] 90: Control Unit

[0077] 100: Work to be processed

[0078] 110: Processing target area

[0079] 120: Machining grooves

[0080] 300: Integrated Electrical Discharge Machining Unit

[0081] 400: Electrode Guiding Assembly

[0082] A: Both sides of the discharge electrode

[0083] B: Discharge section

[0084] D1: Front and rear spacing

[0085] D2: Left and right spacing

[0086] F: Processing direction

[0087] F2: External force

[0088] F21: Thrust

[0089] F22: Suction

[0090] P1: First power supply

[0091] X: First direction

[0092] Y: Second direction

[0093] Z: Third-party direction Detailed Implementation

[0094] To facilitate understanding of the technical features, content, advantages, and effects of this utility model, it is described in detail below with reference to the accompanying drawings and embodiments. The drawings used are for illustrative purposes only and do not necessarily represent the actual proportions and precise configurations of the utility model in practice. Therefore, the proportions and configurations in the accompanying drawings should not be used to interpret or limit the scope of the utility model in actual implementation. Furthermore, for ease of understanding, the same elements in the following embodiments are indicated by the same symbols.

[0095] Furthermore, unless otherwise specified, the terms used throughout this specification and claims generally have their ordinary meaning in the context of this art, the disclosure herein, and the specific content. Certain terms used to describe this utility model will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing this utility model.

[0096] The use of terms such as "first," "second," "third," and "fourth" in this document does not specifically refer to any order or sequence, nor is it intended to limit the present invention. Rather, it is merely used to distinguish components or operations described using the same technical terms.

[0097] Secondly, when this article uses terms such as "contains", "includes", "has", or "contains", these are all open-ended terms, meaning that they include but are not limited to.

[0098] Figure 1 This is a front view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the two ends of the discharge electrode (the lead-out end and the take-up end) are respectively located on different lead-out wheels and take-up wheels. Figure 2 This is a front view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the two ends of the discharge electrode (the lead-out end and the take-up end) are respectively located on the same lead-out wheel (or take-up wheel). Figure 3 This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the number of discharge electrodes is one. Figure 4 This is a top view schematic diagram of the electrical discharge machining apparatus of this utility model, wherein the number of discharge electrodes is multiple.

[0099] Please see Figures 1 to 4 As shown in other figures, the electrical discharge machining (EDM) apparatus 10 of this invention mainly includes at least one stage 20 and an integrated EDM unit 300. The stage 20 is used to support at least one workpiece 100. The workpiece 100 defines at least one processing target area 110. The integrated EDM unit 300 is used to perform EDM operations on the processing target area 110 of the workpiece 100. The stage 20 can be, for example, a fixed stage, or a movable, rotatable, or tiltable stage. The stage 20 of this invention may optionally have a support plate 21 (e.g., Figure 1 and Figure 2 (As exemplified), or this carrier plate may be selectively omitted. The platform 20 of this utility model is not limited to a specific type; the aforementioned type of platform 20 is merely an example and is not intended to limit this utility model. The integrated electrical discharge machining unit 300 of this utility model is mainly composed of at least one modular electrical discharge machining unit 30 having a predetermined number. The predetermined number of modular electrical discharge machining units 30 is not limited to one (e.g., ...). Figure 3 (as shown) or multiples (e.g., two or more, such as...) Figure 4 (As shown).

[0100] This invention can integrate multiple modular electrical discharge machining (EDM) units 30 into a single integrated EDM unit 300 using any known technical means. For example, the modular EDM unit 30 has a modular design, such as modular components that can be combined with each other. This can be achieved through various integration techniques, such as snap-fit ​​(e.g., dovetail grooves and sliders with corresponding shapes, or positioning holes and retaining pins), locking, magnetic attraction, or other assembly methods, allowing multiple modular EDM units 30 to be detachably combined into the integrated EDM unit 30. This invention can selectively add a modular design to any prior art EDM unit to create the modular EDM unit 30 of this invention, thereby integrating it into a single integrated EDM unit 300. Modular components can be, for example, combinations of clips and slots, screw holes and screws, or magnetic components that can attract each other. Since the structure of the above-mentioned combined components can be changed accordingly based on the integration technology adopted, and those skilled in the art to which this utility model pertains should understand from the disclosure of this utility model how a plurality of modular electrical discharge processing units 30 can be combined into an integrated electrical discharge processing unit 300 by means of the above-mentioned combined components and integration technology, and since the structure of the combined components and the combination method can adopt any known conventional technology, they will not be described in detail here.

[0101] In the integrated electrical discharge machining (EDM) unit 300, each modular EDM unit 30 is equipped with at least one discharge electrode 32 for performing at least one EDM process on the processing target area 110 of the workpiece 100 carried by the stage 20, thereby forming at least one processing groove 120 on the processing target area 110. The two sides A of the discharge electrode 32 of the EDM unit 30 extend along a second direction Y, such that the discharge section B of the discharge electrode 32 is parallel to the second direction Y, wherein the second direction Y is perpendicular to the first direction X and the third direction Z. This invention is illustrated by exemplifying that the processing travel direction F is parallel to the third direction Z. The discharge section B of the discharge electrode 32 and the processing target area 110 of the workpiece 100 are, for example, along... Figure 1 The second direction Y shown is a reciprocating, cyclic, or continuous relative movement used to perform an electrical discharge machining (EDM) process on the target area 110 of the workpiece 100 along the machining travel direction F. The power supply unit 34 of the EDM unit 30 provides a first power supply P1 to the discharge electrode 32 and the workpiece 100 during the EDM process, applying discharge energy to the target area 110 of the workpiece 100 via the discharge section B of the discharge electrode 32.

[0102] One feature of this invention is that the electrical discharge machining (EDM) apparatus 10 integrates a predetermined number of modular EDM units 30 into a single integrated EDM unit 300. The predetermined number of the modular EDM units 30 is adjusted according to the number of target areas 110 to be processed, the number of processing grooves 120 to be formed by the EDM process, and / or the number of discharge electrodes 32 used in the EDM process. The plurality of discharge electrodes 32 perform the EDM process in a first direction X, for example, but not limited to, parallel to each other. Specifically, the plurality of discharge electrodes 32 of the integrated EDM unit 300 are distributed parallel to each other along the first direction X and perform the EDM process in a processing travel direction F perpendicular to the first direction X.

[0103] The number of discharge electrodes 32 provided by the integrated electrical discharge machining (EDM) unit 300 corresponds to the predetermined number of the plurality of modular EDM units 30 described above. For example, assuming that each modular EDM unit 30 is equipped with one discharge electrode 32, the integrated EDM unit 300, formed by integrating the plurality of modular EDM units 30 described above, can simultaneously or asynchronously provide the same predetermined number of discharge electrodes 32 as described above. The plurality of discharge electrodes 32 are parallel to each other in the first direction X to perform the EDM process. Similarly, assuming that each modular EDM unit 30 is equipped with two discharge electrodes 32, the integrated EDM unit 300 can simultaneously or asynchronously provide more than (twice) the predetermined number of discharge electrodes 32, and so on.

[0104] The plurality of discharge electrodes 32 of this invention can selectively and jointly perform a discharge machining process on the same workpiece 100 (e.g., Figure 4 (as shown), or perform electrical discharge machining (EDM) on a plurality of workpieces 100 respectively (e.g. Figure 5 , Figure 15 and Figure 16 (As shown). Furthermore, the selectivity of two adjacent discharge electrodes 32 is minimized to minimize one time interval (e.g., Figure 11 The electrical discharge machining process is performed on the workpiece 100 in sequence.

[0105] The integrated electrical discharge machining (EDM) unit 300 of this invention has a plurality of discharge electrodes 32 that are electrically connected together to a single power supply unit 34 or separately to a plurality of power supply units 34, thereby performing an EDM process on the workpiece 100. For example, each of the plurality of discharge electrodes 32 corresponds to the same (e.g., Figure 5 (as shown) or different (e.g.) Figure 15 At least one power supply unit 34 (as shown) and each via the same (as shown) Figure 5 (as shown) or different (e.g.) Figure 15The control unit 90 (as shown) performs a discharge machining process on the workpiece 100 with at least one machining parameter, each with the same or different parameters, thereby maintaining the discharge machining process in a target machining state, for example. Each discharge electrode 32 has a discharge section B overlapping the workpiece 100 for performing the discharge machining process on the workpiece 100. Therefore, a plurality of discharge electrodes 32 have a plurality of discharge sections B overlapping the workpiece 100, and two adjacent discharge sections B are spaced apart by at least one insulating member 56 to achieve a substantially non-contact state (e.g., Figure 15 (As shown). The aforementioned processing parameters include one or more of the following: orientation parameters, discharge electrical parameters, debris removal parameters, and movement, tension, and vibration parameters. Discharge electrical parameters include, but are not limited to, discharge frequency and / or discharge energy. Furthermore, a plurality of discharge electrodes 32 form substantially identical (e.g., ...) discharge electrodes on a plurality of processing target areas 110 of the workpiece 100. Figure 8 (as shown) or different (e.g.) Figure 9 The present invention is not limited to all of the plurality of discharge electrodes 32 discharging multiple processing target areas 110 of the workpiece 100 in the discharge machining process (e.g., as shown). Figure 8 (as shown), or only a portion of the plurality of discharge electrodes 32 discharge the plurality of processing target areas 110 of the workpiece 100 (e.g. Figure 10 (As shown). In other words, the plurality of discharge electrodes 32 of this utility model are not limited to performing a discharge machining process on the workpiece 100 simultaneously. For example, the plurality of discharge electrodes 32 can perform a discharge machining process on the same or different processing target areas 110 of the workpiece 100 according to a sequential order, or in the discharge machining process, only some of the discharge electrodes 32 are used and the rest are not used. As long as the integrated discharge machining unit 300 can perform a discharge machining process, it falls within the scope of protection claimed by this utility model. In addition, the plurality of discharge electrodes 32 can also selectively perform a discharge machining process on the same or different processing target areas 110 of the workpiece 100 with the same or different discharge energies. For example, when two or more discharge electrodes 32 are used to process the same processing target area 110 of the workpiece 100 in sequence, different processing parameters can be set for electrodes in different sequences. In one embodiment, the discharge electrode 32 that is prioritized first can use a larger discharge energy for roughing, while the discharge electrode 32 that is prioritized later uses a smaller discharge energy for finishing. Thus, this invention can sequentially complete the roughing and finishing processes in a single electrical discharge machining process, thereby significantly improving overall processing efficiency and the surface quality of the workpiece 100.

[0106] In the integrated electrical discharge machining (EDM) unit 300, the two sides A of the discharge electrode 32 of each modular EDM unit 30 are respectively connected across or surround the wire guide assembly 400, so that the discharge section B of the discharge electrode 32 is suspended. The two ends (leading end and take-up end) of the discharge electrode 32 can be selectively located on different lead-out reels 36 and take-up reels 36', such as... Figure 1 As shown. Alternatively, the two ends of the discharge electrode 32 (the output end and the take-up end) can also be selectively located on the same output reel 36 (take-up reel 36'), as shown. Figure 2 As shown. Each modular electrical discharge machining (EDM) unit 30's electrode guide assembly 400 includes a lead-out reel 36, a plurality of lead-out reels 37, and a take-up reel 36' for conveying and guiding the discharge electrode 32, and optionally includes, for example, a head assembly, such as an upper head 31 and a lower head 31', for guiding the discharge electrode 32. The plurality of modular EDM units 30 may share the lead-out reel 36 and / or the take-up reel 36' (e.g., ...). Figure 6 (as shown), or multiple modular electrical discharge machining units 30 each have corresponding lead-out reel 36 and take-up reel 36' (as shown). Figure 5 (As shown). Each of the lead-out reel 36, take-up reel 36', and distributor reel 37 includes, for example, a carrier member 40 and a retaining member 50, either assembled or integrally formed. The carrier member 40 is, for example, a rotating wheel, and the retaining member 50 is, for example, the shaft of this rotating wheel. The retaining member 50 is not limited to a fixed or movable retaining carrier member 40; it can be used to transport or guide the discharge electrode 32. For example, the lead-out reel 36 and / or the take-up reel 36' can be selectively connected to different rotating mechanisms (e.g., motors) to rotate the retaining members 50 of the lead-out reel 36 and / or the take-up reel 36', thereby driving the lead-out reel 36 and / or the take-up reel 36' to rotate. The retaining members 50 of the plurality of distributor reels 37 are, for example, freely rotatable at any height and position, for transporting and guiding the discharge electrode 32. The carrier member 40 and the retaining member 50 of this invention can also simultaneously serve as combined components (e.g., Figure 4 As shown), this allows a plurality of modular electrical discharge machining units 30, having a predetermined number, to be assembled together to form the desired integrated electrical discharge machining unit 300.

[0107] Each of the plurality of dividing wheels 37 has at least one limiting groove 42, for example, provided on the surface of the supporting member 40, wherein the discharge electrode 32 is limited in the limiting groove 42. The discharge electrodes 32 in different limiting grooves 42 can be electrically independent, or they can be electrically connected to each other, for example, through a conductive plate 43. The plurality of discharge electrodes 32 can, for example, share a conductive plate 43 (e.g., Figure 5 As shown), or each has a corresponding conductive plate 43 (e.g. Figure 4 (As shown). This utility model can substantially separate a plurality of discharge electrodes 32 by means of a plurality of limiting grooves 42 and can ensure the transfer of the plurality of discharge electrodes 32 at the target position (e.g., machining groove 120 or other positions). Similarly, a plurality of modular electrical discharge machining units 30 can also selectively share the upper machine head 31 and / or the lower machine head 31', so that the plurality of discharge electrodes 32 share the upper machine head 31 and / or the lower machine head 31' (e.g., ...). Figure 5 (as shown), or multiple modular electrical discharge machining units 30 each having an upper head 31 and / or a lower head 31' (as shown). Figure 4 As shown), such that a plurality of discharge electrodes 32 each correspond to an upper head 31 and / or a lower head 31'.

[0108] Each modular electrical discharge machining unit 30's electrode guide assembly 400 selectively includes one or more tension adjustment wheels 37' disposed between the lead-out wheel 36 and the take-up wheel 36', wherein each discharge electrode 32 corresponds to one tension adjustment wheel 37' or shares one tension adjustment wheel 37', thereby adjusting the tension of each discharge electrode 32. Furthermore, this invention can also substantially separate the plurality of discharge electrodes 32 by means of a plurality of limiting grooves 42 on the plurality of dividing wheels 37, and can further use insulating members 56 to separate two adjacent discharge electrodes 32 by a distance, so as to achieve a substantially non-contact state (e.g., ...). Figure 7 (As shown). Furthermore, the electrical discharge machining apparatus 10 of this invention may selectively include a tension measuring unit 38, such as a tension meter, for measuring the tension value of the discharge electrode 32. Alternatively, the electrical discharge machining apparatus 10 may more selectively include a vibration measuring unit 39 for measuring the vibration value of the discharge electrode 32.

[0109] like Figures 12 to 14 As shown, the modular electrical discharge machining (EDM) unit 30 selectively includes one or more slag removal units 64 for performing a slag removal process on one or more target areas 110 during the EDM process, thereby removing, for example, residue generated when the discharge electrode 32 applies discharge energy to the workpiece 100. For example, the plurality of slag removal units 64 correspond one-to-one with the plurality of discharge electrodes 32, providing a plurality of external forces F2 to one or more target areas 110 during the slag removal process. The slag removal unit 64 may be, for example, an airflow generator, a waterflow generator, an ultrasonic generator, a piezoelectric oscillator, or a magnetic force generating component. The external force F2 may be, for example, airflow, waterflow, ultrasonic oscillation, piezoelectric oscillation, attraction, or magnetism. The values ​​of the plurality of external forces F2 may be the same or different. For example, the slag discharge unit 64 is selected from a group consisting of at least one thrust generating unit 64a (such as a water spray unit) and at least one suction generating unit 64b (such as a water suction unit). Figure 12 As shown), the number of thrust generating units 64a is one or more, each paired with one or more suction generating units 64b. The value of the thrust F21 provided by the thrust generating unit 64a and the value of the suction F22 provided by the suction generating unit 64b are the same or different. The direction or position of the external force F generated by the slag removal unit 64 can be manually or automatically adjusted to correspond to the position of the EDM process in the processing target area 110 of the workpiece 100 (e.g., processing groove 120). The thrust generating device 64a and the suction generating device 64b can respectively push and suck up the residue generated during the EDM process, thus effectively improving the residue removal effect. The slag removal unit 64 of the modular EDM unit 30 of this utility model optionally includes at least one guide structure 66 (e.g., Figure 13 As shown, the guide structure 66 guides the external force F2 provided by the slag removal unit 64 to the position of the EDM process (e.g., machining groove 120) on the machining target area 110 of the workpiece 100 during the slag removal process, thereby assisting in slag removal. The guide structure 66 moves synchronously with the feed action of one or more discharge electrodes 32. For example, the guide structure 66 is a sheet structure, such as copper foil or silicon steel sheet, but is not limited to the above examples. The guide structure 66 may also contain or be composed of any suitable material, and the thickness of the guide structure 66 is substantially less than or equal to the width of the machining groove 120.

[0110] The workpiece 100 described above can be any conductor or semiconductor material, such as an ingot or wafer, or even any material suitable for electrical discharge machining, and its shape can be, for example, a cylindrical or sheet-like block. Taking semiconductor materials as an example, the workpiece 100 may be composed of semiconductor materials selected from the group consisting of silicon, gallium arsenide, indium phosphide, gallium nitride, and silicon carbide. For example, if the workpiece 100 is defined with a plurality of processing target areas 110, these processing target areas 110 are selectively located at any suitable processing position within the workpiece 100. The distance between these processing target areas 110 is correspondingly defined (e.g., equal to) the cutting thickness, thinning thickness, or cutting spacing of the workpiece 100, and these values ​​are adjusted according to actual process requirements, and are therefore not limited to being equal or unequal to each other. Two adjacent discharge electrodes 32 are spaced apart by a distance, and this distance is determined based on the thickness of at least one cut piece to be obtained by the discharge machining process of the workpiece 100, at least one discharge gap of the plurality of discharge electrodes 32, and / or at least one diameter of the plurality of discharge electrodes 32. Furthermore, the values ​​of the plurality of distances between the plurality of discharge electrodes 32 are not limited to being equal or unequal; the aforementioned plurality of distances are, for example, the front-to-back distance D1 and / or the left-to-right distance D2 between the plurality of discharge electrodes 32 (e.g., ...). Figure 11(As shown).

[0111] In summary, the electrical discharge machining apparatus of this utility model can integrate a plurality of modular electrical discharge machining units into an integrated electrical discharge machining unit through modular design. Moreover, the predetermined number of the plurality of modular electrical discharge machining units can be adjusted according to the number of processing target areas in the electrical discharge machining process, the number of processing grooves to be formed in the electrical discharge machining process, and / or the number of discharge electrodes used in the electrical discharge machining process.

[0112] The electrical discharge machining apparatus of this utility model has the following technical advantages and effects:

[0113] (1) Modular design and high integration: Modular EDM units can be easily combined or disassembled to form an integrated EDM unit. This design allows users to flexibly adjust the number of modular units according to actual needs.

[0114] (2) Highly customizable and adaptable: The configuration of the modular unit can be adjusted according to the number of processing target areas, the number of processing grooves to be formed, or the number of discharge electrodes required. It can meet the processing needs of a single or multiple workpieces and supports processing using a single or multiple discharge electrodes.

[0115] (3) Improved Processing Efficiency and Flexibility: Multiple discharge electrodes can process workpieces simultaneously or sequentially, significantly increasing processing speed and throughput. Electrodes can share or each have its own power supply unit, control unit, upper head, lower head, conductive plate, lead / reel, etc., providing configuration flexibility. Different processing parameters can be set, allowing each electrode to perform the same or different processing tasks. The size of the discharge sections can be set to be the same or different to meet diverse processing needs. Only some electrodes can be used for processing, increasing operational flexibility. The spacing between multiple electrodes can be equal or unequal to adapt to different cutting thicknesses or pattern requirements.

[0116] (4) Ensuring machining accuracy and stability: The limiting grooves on the dividing wheel effectively separate and guide multiple discharge electrodes. Insulating components can be used to further ensure insulation between adjacent electrodes, preventing interference and short circuits. Tension adjustment wheels and tension measuring units help maintain the tension stability of each electrode. Vibration measuring units can be used to monitor the stability of the electrodes.

[0117] (5) Enhanced Slag Removal and Processing Quality: Optional slag removal units (such as airflow, waterflow, ultrasonic, or magnetic forces) can be added to effectively remove residues generated during electrical discharge machining. The slag removal unit can be paired with a guide structure to precisely guide the slag removal force to the processing area, improving slag removal efficiency. The same or different slag removal forces can be applied to different electrodes or areas to improve the slag removal effect. Combining thrust and suction generating units can more effectively remove residues and improve processing quality.

[0118] The above description is merely illustrative and not restrictive. Any equivalent modifications or alterations made to this utility model without departing from its spirit and scope should be included in the appended claims.

Claims

1. An electrical discharge machining apparatus, characterized in that, Include: At least one platform for holding at least one workpiece to be processed, the workpiece defining at least one processing target area; and An integrated electrical discharge machining (EDM) unit is mainly composed of at least one modular EDM unit having a predetermined number, wherein the modular EDM unit has a modular design and has a combination component that can be combined with each other, and the modular EDM unit is configured with at least one discharge electrode having a discharge section that coincides with the workpiece and corresponds to the processing target area. When the predetermined number of the modular electrical discharge machining units is multiple, the multiple modular electrical discharge machining units can be detachably combined into the integrated electrical discharge machining unit by means of the corresponding combination components. The predetermined number of the modular electrical discharge machining units corresponds to the number of the processing target areas, the number of at least one processing groove corresponding to the processing target areas, and / or the number of the discharge electrodes.

2. The electrical discharge machining apparatus as described in claim 1, characterized in that, The predetermined number of the modular electrical discharge machining units is a plurality of units, and the integrated electrical discharge machining unit has a plurality of discharge electrodes, the number of which corresponds to the predetermined number of the modular electrical discharge machining units.

3. The electrical discharge machining apparatus as described in claim 2, characterized in that, The plurality of discharge electrodes are electrically connected together to a power supply unit or are electrically connected separately to the plurality of power supply units.

4. The electrical discharge machining apparatus as described in claim 2, characterized in that, The plurality of discharge electrodes of the integrated electrical discharge machining unit are distributed parallel to each other along a first direction, and the integrated electrical discharge machining unit has a machining travel direction relative to the workpiece, the machining travel direction being perpendicular to the first direction.

5. The electrical discharge machining apparatus as described in claim 2, characterized in that, The plurality of discharge electrodes in the integrated electrical discharge machining unit have a plurality of discharge sections overlapping the workpiece, and two adjacent discharge sections are separated from each other by at least one insulating member to achieve a substantially non-contact state.

6. The electrical discharge machining apparatus as described in claim 2, characterized in that, Each of the plurality of modular electrical discharge machining units includes an electrode guide assembly comprising a lead-out reel shared by the plurality of discharge electrodes, a plurality of branch reels having a plurality of limiting grooves, and a take-up reel shared by the plurality of discharge electrodes, wherein the plurality of limiting grooves are used to substantially separate the plurality of discharge electrodes and ensure that the plurality of discharge electrodes are transmitted at a target location.

7. The electrical discharge machining apparatus as described in claim 2, characterized in that, Each of the plurality of modular electrical discharge machining units includes an electrode guide assembly comprising an output reel and a take-up reel to substantially separate the plurality of discharge electrodes and ensure the transfer of the plurality of discharge electrodes at a target location.

8. The electrical discharge machining apparatus as described in claim 6 or 7, characterized in that, Each of the plurality of modular electrical discharge machining units further includes a tension adjustment wheel or a plurality of tension adjustment wheels disposed between the lead-out wheel and the take-up wheel, wherein the discharge electrode or the plurality of discharge electrodes corresponds to the tension adjustment wheel or the plurality of tension adjustment wheels, thereby adjusting the tension of one of the discharge electrodes or the plurality of discharge electrodes.

9. The electrical discharge machining apparatus as described in claim 6, characterized in that, The integrated electrical discharge machining unit substantially separates the plurality of discharge electrodes by means of the plurality of limiting grooves of the plurality of dividing wheels, and two adjacent discharge electrodes are spaced apart by at least one insulating member to achieve a substantially non-contact state.

10. The electrical discharge machining apparatus as described in claim 2, characterized in that, The plurality of discharge electrodes have a plurality of discharge segments on a plurality of processing target areas of the workpiece, and the plurality of discharge segments are substantially the same or different in size.

11. The electrical discharge machining apparatus as described in claim 2, characterized in that, All of the plurality of discharge electrodes correspond to the plurality of processing target areas of the workpiece, or only a portion of the plurality of discharge electrodes correspond to the plurality of processing target areas of the workpiece.

12. The electrical discharge machining apparatus as described in claim 2, characterized in that, The plurality of discharge electrodes each correspond to one of the same or different discharge energies.

13. The electrical discharge machining apparatus as described in claim 2, characterized in that, It further includes one or more slag removal units for performing a slag removal procedure on the processing target area or the processing target area.

14. The electrical discharge machining apparatus as described in claim 13, characterized in that, The plurality of slag removal units correspond one-to-one with the plurality of discharge electrodes, and are used to provide a plurality of external forces to the processing target area or the plurality of processing target areas respectively in the slag removal process.

15. The electrical discharge machining apparatus as described in claim 14, characterized in that, The values ​​of the plurality of external forces provided by the plurality of slag discharge units may be the same or different.

16. The electrical discharge machining apparatus as described in claim 15, characterized in that, The slag discharge unit is selected from a group consisting of at least one water spray unit and at least one water suction unit, wherein the number of water spray units is one or more, each of which is paired with one or more water suction units, and the value of the thrust provided by the water spray unit is the same as or different from the value of the suction provided by the water suction unit.

17. The electrical discharge machining apparatus as described in claim 13, characterized in that, The slag discharge unit is equipped with at least one guiding structure to guide an external force provided by the slag discharge unit to the processing groove corresponding to the processing target area of ​​the workpiece.

18. The electrical discharge machining apparatus as described in claim 17, characterized in that, The guiding structure moves synchronously with the feeding action of the discharge electrode or one of the plurality of discharge electrodes.

19. The electrical discharge machining apparatus as described in claim 17, characterized in that, The guide structure is a sheet-like structure, and the thickness of the sheet-like structure is substantially less than or equal to the width of the machining groove.

20. The electrical discharge machining apparatus as described in claim 2, characterized in that, The plurality of discharge electrodes may correspond to the same workpiece or each may correspond to a plurality of workpieces.

21. The electrical discharge machining apparatus as described in claim 2, characterized in that, Each of the plurality of discharge electrodes corresponds to at least one power supply unit, which may be the same or different, and each is controlled by at least one control unit, which may be the same or different.

22. The electrical discharge machining apparatus as described in claim 2, characterized in that, The plurality of discharge electrodes are spaced apart by a distance between two adjacent electrodes, the distance including a front-to-back distance and / or a left-to-right distance between the plurality of discharge electrodes.

23. The electrical discharge machining apparatus as described in claim 2, characterized in that, The plurality of discharge electrodes are spaced apart from each other by a distance, which is determined based on the thickness of at least one cut piece to be obtained from the workpiece, at least one discharge gap of the plurality of discharge electrodes, and / or at least one line diameter of the plurality of discharge electrodes.

24. The electrical discharge machining apparatus as described in claim 1, characterized in that, The assembly includes a combination of card blocks and card slots, a combination of screw holes and screws, or a magnetic assembly that can attract each other.

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