Electrode posture calibration device and electric spark drilling equipment

Abstract

The present invention discloses an electrode posture verification device and an electric spark drilling device. The electrode posture verification device comprises a body and a first hole. The body has a reference portion. The first hole is formed in the body and passes through the body. The first hole has a first end and a second end. The reference portion is used to determine the position of the body relative to a workpiece, so that the first hole corresponds to the hole position to be machined on the workpiece, thereby verifying the posture of the electrode relative to the workpiece through the first hole. The present invention can achieve rapid verification of the electrode posture, simplify verification steps and error analysis, and improve verification efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric spark machining, and in particular relates to an electrode posture calibration device and an electric spark drilling device. Background Art

[0002] Fuel supply and cooling components such as the fuel supply rod, fuel injection ring, and bevel gear seat are the core functional components of the engine. The jet holes distributed on them spray fuel to participate in combustion and cooling. The accuracy of the jet holes directly affects the engine performance and operational reliability.

[0003] In the related art, the jet hole is processed by the electric spark machining process. Before processing, the electrode parameters are calibrated using qualified products that have been tested, which can detect abnormal deviations. However, a single comparison requires disassembly of the workpiece to be processed, installation of qualified products, comparison, analysis, disassembly of qualified products, installation of workpieces to be processed, and analysis in a repeated cycle. The steps are cumbersome, the comparison is not intuitive, the efficiency is low, and it is impossible to eliminate the impact of installation deviations caused by the installation and comparison of qualified products. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes an electrode posture verification device, which can achieve rapid verification of the electrode posture, simplify the verification steps and error analysis, and improve the efficiency of verification.

[0006] An embodiment of the present invention further provides an electric spark drilling device.

[0007] The electrode posture verification device according to an embodiment of the present invention includes:

[0008] a body having a reference portion;

[0009] a first hole, the first hole being formed on the body and passing through the body, the first hole having a first end and a second end;

[0010] The reference portion is used to determine the position of the body relative to the workpiece, so that the first hole corresponds to the hole position to be processed on the workpiece, and the posture of the electrode relative to the workpiece is verified through the first hole.

[0011] The electrode posture verification device of an embodiment of the present invention realizes rapid verification of the electrode posture by determining whether the electrode has the ability to pass through the first hole, solves the difficult problem of electrode posture verification in electrospark machining, simplifies the verification correction steps and error analysis, greatly shortens the verification time, and improves the efficiency of verification.

[0012] In some embodiments, a detection sleeve is further included. The first end and the second end are both provided with the detection sleeve, and the detection sleeve is coaxially arranged with the first hole.

[0013] In some embodiments, the inner diameter D of the detection sleeve and the outer diameter d of the electrode satisfy: 0.1 mm ≤ Dd ≤ 0.5 mm.

[0014] In some embodiments, the inner diameter of the first hole is greater than or equal to 1.5d.

[0015] In some embodiments, the first end and the second end of the first hole are both provided with countersunk holes, and the detection sleeve is embedded in the countersunk holes;

[0016] And / or, the outer end of the detection sleeve close to the outer wall of the body is flush with the outer wall of the body, or the outer end of the detection sleeve close to the outer wall of the body is recessed into the outer wall of the body;

[0017] And / or, the body is made of a transparent material;

[0018] And / or, the end of the detection sleeve located at one end of the first hole close to the electrode has a guide portion;

[0019] And / or, the body is in a frustum shape, with a first cavity in the middle of the body, an annular boss at one end in the axial direction of the body, a plurality of step surfaces on the circumferential outer wall of the body, and at least a portion of the body is hollowed out.

[0020] In some embodiments, a detection component is further included, wherein the detection component includes:

[0021] A power supply, one end of which is connected to the electrode, the detection sleeve is conductive, and the other end of which is connected to the detection sleeve;

[0022] A detection component is used to detect whether the electrode and the detection sleeve are in contact and conduct a circuit.

[0023] In some embodiments, there are multiple first holes, and the multiple first holes are arranged at intervals on the body.

[0024] The electric spark drilling equipment according to the embodiment of the present invention comprises:

[0025] A machine tool comprising an electrode for electric spark machining, a wire feed shaft, and a first clamping portion, wherein the first clamping portion is used to fix a workpiece, and the electrode is mounted on the wire feed shaft;

[0026] In the electrode posture verification device as described in any of the above items, the main body is arranged in alignment with the workpiece.

[0027] In some embodiments, during use, the following steps are included:

[0028] S101, placing the workpiece and the electrode posture calibration device on the machine tool, and locating the main body of the positive electrode posture calibration device and the workpiece;

[0029] S102, inputting electrode operating parameters to drive the electrode to perform punching and feeding action;

[0030] S103, judging whether to adjust the electrode operating parameters based on the positional relationship between the electrode and the end of the first hole close to the electrode, and if so, adjusting the electrode operating parameters;

[0031] S104: If not, the electrode continues to perform the punching feeding action, and based on the positional relationship between the electrode and the end of the first hole away from the electrode, determines whether to adjust the electrode operating parameters; if so, adjust the electrode operating parameters;

[0032] If not, then the electrode posture verification is completed in S105.

[0033] In some embodiments, in step S103, whether to adjust the electrode operating parameters is determined based on whether the electrode is in contact with the detection sleeve at one end of the first hole closer to the electrode; in step S104, whether to adjust the electrode operating parameters is determined based on whether the electrode is in contact with the detection sleeve at one end of the first hole farther from the electrode;

[0034] And / or, the adjustment of the electrode operating parameters in step S103 is: adjusting the linear axis of the machine tool to correct the position deviation of the electrode; the adjustment of the electrode operating parameters in step S104 is: adjusting the rotation axis of the machine tool and synchronously adjusting the linear axis of the machine tool to correct the axis deviation of the electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Schematic diagram of an exploded view of an electrode posture verification device according to an embodiment of the present invention.

[0036] Figure 2 It is a schematic diagram of the assembly structure of the electrode posture verification device according to an embodiment of the present invention.

[0037] Figure 3 It is a structural diagram of the body of an embodiment of the present invention.

[0038] Figure 4 It is a structural diagram of the main body from another perspective of an embodiment of the present invention.

[0039] Figure 5 It is a schematic diagram of the alignment structure of two detection sleeves arranged at both ends of the first hole according to an embodiment of the present invention.

[0040] Figure 6 It is a schematic diagram of the alignment structure of two detection sleeves arranged at both ends of the first hole according to another embodiment of the present invention.

[0041] Figure 7 This is a schematic diagram of the alignment structure of two detection sleeves arranged at both ends of the first hole according to another embodiment of the present invention.

[0042] Reference numerals:

[0043] 1. Main body; 11. Annular boss; 12. First cavity;

[0044] 2. First hole; 21. Detection sleeve; 211. Guide portion; 22. Countersunk hole;

[0045] 3. Electrode. DETAILED DESCRIPTION

[0046] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0047] Oil supply and cooling components are widely found in various types of engines, including turbofans, turbojets, and ramjets, and are a fundamental feature of liquid fuel engines. These components, represented by the fuel supply rod, fuel injection ring, and bevel gear housing, are core functional components of the engine. The jet holes distributed throughout these components eject fuel for combustion and cooling. The precision of these jet holes directly impacts engine performance and operational reliability. Oil supply / cooling components, such as the low-inductance stage I and bevel gear housing, feature multiple jet holes. This can lead to significant deviations in the position of these holes during machining, resulting in a low first-pass yield.

[0048] Among the related technologies, the jet hole processing methods include electrospark machining, laser machining, CNC milling, electrolytic machining, precision casting and combined processing. Among them, electrospark machining has good flexibility, low process difficulty and low cost, and is the most widely used and accounts for a high proportion.

[0049] The inventors realized that using electrospark drilling equipment to process jet holes, the process is performed by positioning fixed-specification electrodes through customized guides. Most processing equipment is non-standard, and the guides and electrodes are customized. The manufacturing dimensions and quality vary between manufacturers and between batches of the same manufacturer. Machine tool deviations and tool errors are superimposed on each other during processing, making it difficult to analyze the source of errors in jet hole processing and causing large processing deviations. When the electrodes, guides, and products are disassembled and rechecked using the same parameters and process, deviations can reach 0.3mm, preventing the electrode from entering the processed hole.

[0050] Due to the above difficulties, the first-time pass rate for the jet holes in specific locations of certain product models (mostly jet holes with three-dimensional spatial angles) is even less than 50%. After inspection, they need to be repeatedly ground and repaired, resulting in a very high scrap rate.

[0051] The inventors further realized that the errors in EDM small hole machining are mainly due to two aspects: machine tool error and tool error. Machine tool error includes: 1. X, Y, and Z linear axis motion deviation, which leads to hole axis position deviation; 2. B and C rotation axis motion deviation, which leads to hole axis deflection. The impact increases significantly as the jet flow hole distance increases. Tool error includes: 1. Guide aperture deviation, which leads to aperture deviation and axis position deviation; 2. Guide installation deviation, which leads to hole axis deflection; 3. Machining electrode diameter deviation, which leads to aperture deviation.

[0052] In related technologies, parameter verification is typically performed using already tested, qualified products. This can identify deviations and anomalies, but the analysis lacks guidance and corrections are difficult. Comprehensive verification before processing is an effective way to quickly identify problems and prevent processing anomalies in a timely manner.

[0053] The inventors analyzed the calibration methods in the related art and found that the related art generally uses processed and tested qualified products for parameter calibration. Due to the inevitable comparison and disassembly, the various sources of error and the errors in sample processing itself, the defects are as follows:

[0054] (1) The qualified product inspection adopted requires repeated disassembly and assembly of the products to be processed. It is impossible to eliminate the installation deviation caused by the installation and comparison of qualified products. The slight deviation causes the electrode to be unable to extend into the formed hole of the qualified product in 70% of cases. Generally, it can only detect the position of the hole mouth, and cannot detect the axis deviation.

[0055] (2) A single comparison requires a repeated cycle of disassembling the workpiece, installing qualified products, comparing, analyzing, disassembling qualified products, installing the workpiece, and analyzing. The steps are cumbersome, the comparison is not intuitive, and the efficiency is low.

[0056] (3) It is impossible to directly evaluate the current state deviation of the installed workpiece to be processed. The product needs to be installed repeatedly many times to correct the deviation by chance, and the success rate of deviation elimination is low.

[0057] Based on the above technical problems, the embodiments of the present invention provide an electrode posture verification device and an electric spark drilling device to solve at least part of the above technical problems. Figure 1-Figure 7 Provide a detailed description.

[0058] like Figure 1-Figure 4As shown, the electrode posture verification device of an embodiment of the present invention includes a main body 1 and a first hole 2, the main body 1 has a reference portion, the first hole 2 is opened on the main body 1, and the first hole 2 passes through the main body 1, and the first hole 2 has a first end and a second end; the reference portion is used to determine the position of the main body 1 relative to the workpiece, so that the first hole 2 corresponds to the hole position to be processed on the workpiece, so as to verify the posture of the electrode 3 relative to the workpiece through the first hole 2.

[0059] It should be understood that the main body 1 can be quickly aligned with the workpiece through the reference part, and the installation reference of the main body 1 overlaps with the reference of the hole to be processed in the workpiece, thereby ensuring that the first hole 2 and the hole to be processed in the workpiece are aligned. For example, the first hole 2 and the hole to be processed are coaxially arranged. After the workpiece and the main body 1 are assembled on the machine tool, as the electrode 3 feeds, if the electrode 3 can smoothly pass through the first hole 2, it means that the electrode 3 has the ability to pass through the hole on the main body 1, which also means that the posture of the electrode 3 is accurate, thereby realizing rapid verification of the posture of the electrode 3.

[0060] The reference portion of the body 1 in the embodiment of the present invention is one or more surfaces on the body 1 as reference surfaces, or a positioning column, a positioning platform and other structures are provided on the body 1 for positioning.

[0061] When the electrode 3 cannot pass through the first hole 2 smoothly, it means that there is a deviation in the posture of the electrode 3. By correcting the parameters of the electrode 3 and adjusting the posture of the electrode 3, the correction steps are simplified. After the posture adjustment of the electrode 3 is completed, the main body 1 can be removed and the jet hole can be processed directly, reducing the introduction of other errors.

[0062] The embodiment of the present invention can not only determine the position deviation of the electrode 3 by whether the electrode 3 can enter the first hole 2, but also determine the axis deviation of the electrode 3 by whether the electrode 3 can extend out of the first hole 2 from the other end of the first hole 2, thereby ensuring processing accuracy.

[0063] In the embodiment of the present invention, an electrode posture verification device is designed for the hole to be processed. During verification, after aligning the product and the main body 1, the parameters and coordinate position of the electrode 3 are input to verify whether the electrode 3 can pass through the first hole 2 on the main body 1. The position accuracy can be verified by directly observing the position deviation between the electrode 3 and the entrance of the first hole 2, and the axis deviation can be verified by observing the position of the electrode 3 to the exit of the first hole 2. There is no need to disassemble the product and the mold, and the adjustable error can be directly corrected by eliminating abnormal parameters and installation errors.

[0064] The electrode posture verification device of an embodiment of the present invention realizes rapid verification of the posture of the EDM small hole electrode 3 by determining whether the electrode 3 has the ability to pass through the first hole 2, solves the problem of difficult posture verification of the electrode 3 in EDM, simplifies the verification correction steps and error analysis, greatly shortens the verification time, and improves the efficiency of verification.

[0065] like Figure 1-Figure 7As shown, in some embodiments, the electrode posture verification device further includes a detection sleeve 21 , and the first end and the second end are both provided with a detection sleeve 21 , and the detection sleeve 21 is coaxially arranged with the first hole 2 .

[0066] It should be understood that when calibrating the position of the electrode 3, the electrode 3 enters the first hole 2 from one of the first and second ends and exits the first hole 2 from the other end, thereby completing the calibration. For example, the first end of the first hole 2 is close to the electrode 3 and serves as the entrance end of the electrode 3 extending into the first hole 2, while the second end of the first hole 2 is away from the electrode 3 and serves as the exit end of the electrode 3 extending from the first hole 2.

[0067] The detection sleeve 21 is used to limit and constrain the aperture of the inlet and outlet ends of the first hole 2 to ensure the accuracy of the aperture at both ends of the first hole 2. When verifying the posture of the electrode 3, the positional relationship between each detection sleeve 21 and the electrode 3 is used to determine whether there is any deviation in the electrode 3.

[0068] Furthermore, the inner diameter D of the detection sleeve 21 and the outer diameter d of the electrode 3 satisfy: 0.1 mm ≤ Dd ≤ 0.5 mm.

[0069] The diameter of the inner hole of the detection sleeve 21 is D, and the diameter of the electrode 3 is d. The diameter of the inner hole of the detection sleeve 21 is 0.1mm to 0.5mm larger than the diameter of the electrode. For example, the value of Dd is 0.1mm, 0.15mm, 0.23mm, 0.36mm, 0.47mm or 0.5mm. In the embodiment of the present invention, when the diameter of the inner hole of the detection sleeve 21 is D and the diameter of the electrode 3 is d and the above parameters are met, the processing quality and processing accuracy of the jet hole can be guaranteed.

[0070] If the value of Dd is less than 0.1mm, it is easy to lead to excessively high requirements for the posture accuracy of electrode 3, reducing the efficiency and difficulty of correction of electrode 3, increasing the difficulty of operation, and low practicality. If the value of Dd is less than 0.5mm, it will cause the posture verification accuracy of electrode 3 to be too low, resulting in large deviations in the processing of the jet hole, resulting in the oil supply and cooling components with the jet hole being unable to meet the performance requirements of the engine.

[0071] In some embodiments, the inner diameter of the first hole 2 is greater than or equal to 1.5d.

[0072] Specifically, the diameter of the first hole 2 is 1.5d, 1.63d, or 1.7d, etc. By constraining the inner diameter of the first hole 2, the electrode 3 can be prevented from interfering with the inner wall of the first hole 2 when it does not interfere with the detection sleeve 21 at the entrance end of the first hole 2. The two detection sleeves 21 at the two ends of the first hole 2 can then be used to more intuitively and effectively judge and correct the posture of the electrode 3.

[0073] When the inner diameter of the first hole 2 is less than 1.5d, after the electrode 3 passes through the detection sleeve 21 at the entrance end of the first hole 2, the end of the electrode 3 will interfere with the inner wall of the first hole 2 when it moves to the middle of the first hole 2, and the position of the electrode 3 cannot be judged more effectively, resulting in the electrode 3 being unable to pass through the first hole 2 smoothly.

[0074] The embodiment of the present invention can realize rapid quantitative judgment of the posture deviation of the electric spark electrode 3. The detection sleeve 21 can control the position and posture deviation of the electrode 3 within the accuracy requirement range, improve the convenience and practicality of operation, realize rapid calibration of the electric spark pinhole electrode 3, avoid disassembly and assembly of parts, and greatly improve the detection efficiency and success rate.

[0075] like Figure 1 As shown, in some embodiments, a countersunk hole 22 is provided at both the first end and the second end of the first hole 2 , and the detection sleeve 21 is embedded in the countersunk hole 22 .

[0076] The detection sleeve 21 is embedded in the countersunk hole 22 , which facilitates the fixation of the detection sleeve 21 and ensures the coaxiality between the detection sleeve 21 and the first hole 2 , thereby helping to improve the correction accuracy of the position of the electrode 3 .

[0077] Furthermore, the outer end of the detection sleeve 21 near the outer wall of the body 1 is flush with the outer wall of the body 1, or the outer end of the detection sleeve 21 near the outer wall of the body 1 is recessed into the outer wall of the body 1. The detection sleeve 21 does not protrude from the outer wall of the body 1, thereby preventing the detection sleeve 21 from being bumped during removal and installation, which may cause deformation of the detection sleeve 21, ensuring the structural stability of the detection sleeve 21, and avoiding calibration failure due to position deviation or structural deformation of the detection sleeve 21.

[0078] The body 1 of the embodiment of the present invention is made of a transparent material. When the electrode 3 passes through the first hole 2, the state of the electrode 3 in the first hole 2 can be visually seen, which facilitates a more intuitive judgment of the positional relationship between the electrode 3 and the first hole 2.

[0079] Furthermore, the end of the detection sleeve 21 located at one end of the first hole 2 close to the electrode 3 has a guide portion 211 .

[0080] The guide portion 211 is a tapered guide angle provided at the inner hole end of the detection sleeve 21 , which can guide the electrode 3 to a certain extent when the electrode 3 enters the detection sleeve 21 at one end of the first hole 2 close to the electrode 3 .

[0081] Optionally, the end of the detection sleeve 21 at the end of the first hole 2 close to the electrode 3 is a plane perpendicular to the axial direction of the detection sleeve 21, and the end of the detection sleeve 21 at the end of the first hole 2 away from the electrode 3 is an inclined surface inclined relative to the axial direction of the detection sleeve 21.

[0082] In some embodiments, the electrode posture verification device also includes a detection component, which includes a power supply and a detection component. One end of the power supply is connected to the electrode 3, the detection sleeve 21 is conductive, and the other end of the power supply is connected to the detection sleeve 21; the detection component is used to detect whether the electrode 3 and the detection sleeve 21 are in contact and conduct the circuit.

[0083] The detection component can be an alarm, an indicator light, or a detection module connected to a controller such as a computer. The positional relationship between the electrode 3 and the detection sleeve 21 is obtained by detecting the sound of the alarm, whether the indicator light is lit, and whether the detection module detects a conductive signal light.

[0084] When the electrode 3 comes into contact with the detection sleeve 21, the circuit is connected, and the detection components such as the alarm, indicator light, and detection module connected in the circuit send out a signal, indicating that the position of the electrode 3 needs to be corrected. After the alarm is eliminated, it means that the position adjustment of the electrode 3 is completed.

[0085] The alarm function of short-circuit detection can more intuitively and effectively determine the positional relationship between the electrode 3 and the detection sleeve 21 , thereby improving practicality.

[0086] like Figure 1-Figure 4 As shown, in some embodiments, there are multiple first holes 2 , and the multiple first holes 2 are arranged at intervals on the body 1 .

[0087] It should be understood that a plurality of jet holes are provided on the workpiece, and therefore a plurality of first holes 2 are provided on the main body 1, and the plurality of first holes 2 correspond one-to-one to the plurality of jet holes respectively, and the axes of the plurality of jet holes do not intersect, and the opening positions of the jet holes are related to the performance of the corresponding oil supply cooling components. Therefore, the positions of the plurality of first holes 2 are arranged correspondingly based on the positions of the jet holes to ensure that after the main body 1 and the workpiece are aligned, the first holes 2 and the jet holes correspond one-to-one and are coaxially arranged.

[0088] For example, if there are three jet holes on the workpiece, then three first holes 2 are set on the body 1. After the body 1 and the workpiece are aligned, the first holes 2 and the jet holes are set one by one. Figure 5-Figure 7 As shown, the structures of the detection sleeves 21 arranged in three different first holes 2 are respectively shown.

[0089] Optionally, in an embodiment of the present invention, the body 1 is in a frustum shape, with a first cavity 12 in the middle of the body 1, an annular boss 11 at one axial end of the body 1, and a plurality of stepped surfaces on the circumferential outer wall of the body. Furthermore, at least a portion of the body 1 is hollowed out.

[0090] By designing the structure of the main body 1, the weight and volume of the main body can be reduced, and interference with other parts of the main body can be avoided. The outer wall surface of the main body, the end face or side face of the annular boss can be used as a reference surface for positioning. Through the design of the step surface and the hollowing out of some areas, the weight and volume of the main body can be reduced while ensuring the effective length of the first hole and without affecting the arrangement of the first hole, and interference with other parts can be avoided.

[0091] Furthermore, the first cavity 12 includes a plurality of tapered hole segments, and the tapers of the plurality of tapered hole segments are different, so that the tapers of the tapered hole segments can be determined according to the orientations of the axes of the different first holes, thereby facilitating electrode feeding and avoiding interference.

[0092] The electric spark drilling equipment of an embodiment of the present invention includes a machine tool and an electrode posture verification device as described above. The machine tool has an electrode 3 for electric spark machining, a wire feeding shaft and a first clamping part. The first clamping part is used to fix the workpiece, and the electrode 3 is installed on the wire feeding shaft; the main body 1 is arranged in alignment with the workpiece.

[0093] The machine tool is an EDM machine tool. The first clamping part is used to clamp the workpiece to be machined. The EDM machine tool has an electrode 3 and a wire feed shaft for EDM. The wire feed shaft is used to control the posture of the electrode 3 and drive the electrode 3 to feed for drilling.

[0094] The main body 1 of the embodiment of the present invention achieves alignment between the main body 1 and the workpiece by cooperating with the reference portion and the workpiece or the first clamping portion.

[0095] In some embodiments, during use, the following steps are included:

[0096] S101. Place the workpiece and the electrode posture calibration device on the machine tool, align the body 1 of the electrode posture calibration device and the workpiece, and realize the alignment of the body 1 and the workpiece. At this time, the electrode 3 is installed on the wire feeding shaft of the machine tool.

[0097] S102: Input the operating parameters of electrode 3 and drive electrode 3 to perform a punching feed action. By adjusting the operating parameters of electrode 3, the initial position and subsequent operating trajectory of electrode 3 can be determined. When driving electrode 3 to perform a punching feed action, the position of the electrode can be determined based on the positional relationship between electrode 3 and detection sleeve 21.

[0098] S103 , based on the positional relationship between the electrode 3 and the end of the first hole 2 close to the electrode 3 , determine whether to adjust the operating parameters of the electrode 3 ; if so, adjust the operating parameters of the electrode 3 .

[0099] Specifically, based on whether the electrode 3 and the detection sleeve 21 at one end of the first hole 2 close to the electrode 3 are in contact, it is determined whether the operating parameters of the electrode 3 should be adjusted. If there is contact, the operating parameters of the electrode 3 are adjusted until the electrode 3 and the detection sleeve 21 at one end of the first hole 2 close to the electrode 3 do not interfere with each other.

[0100] S104, if not, the electrode 3 continues the punching feeding action, and based on the positional relationship between the electrode 3 and the end of the first hole 2 away from the electrode 3, it is determined whether to adjust the operating parameters of the electrode 3, and if so, the operating parameters of the electrode 3 are adjusted.

[0101] That is to say, if under the initial operating parameters of the electrode 3, the electrode 3 does not interfere with the detection sleeve 21 at the end of the first hole 2 close to the electrode 3, there is no need to adjust the operating parameters of the electrode 3, and the punching feeding action of the electrode 3 is continued. When the end of the electrode 3 reaches the end of the first hole 2 away from the electrode 3, it is determined whether to adjust the operating parameters of the electrode 3 based on whether the electrode 3 and the detection sleeve 21 at the end of the first hole 2 away from the electrode 3 are in contact; if there is interference, the operating parameters of the electrode 3 need to be adjusted until there is no interference between the electrode 3 and the detection sleeve 21 at the end of the first hole 2 away from the electrode 3.

[0102] S105. If not, then complete the posture verification of electrode 3.

[0103] It should be understood that when there is no interference between the electrode 3 and the detection sleeve 21 at the end of the first hole 2 away from the electrode 3, it means that the position of the electrode 3 is correct and can pass through the first hole 2 and the detection sleeve 21 smoothly, then the workpiece can be punched. At this time, the main body 1 can be removed and the jet hole on the workpiece can be punched.

[0104] Furthermore, in step S103, when there is interference between the electrode 3 and the detection sleeve 21 at the end of the first hole 2 close to the electrode 3, the position deviation of the electrode 3 is corrected by adjusting the linear axis of the machine tool; in step S105, when there is interference between the electrode 3 and the detection sleeve 21 at the end of the first hole 2 away from the electrode 3, the axis deviation of the electrode 3 is corrected by adjusting the rotation axis of the machine tool and synchronously adjusting the linear axis of the machine tool.

[0105] It should be understood that in the embodiment of the present invention, the interference between the electrode 3 and different detection sleeves 21 indicates that the posture deviation of the electrode 3 is different, and different adjustment methods are used for correction. Therefore, the posture of the electrode 3 can be quickly adjusted and corrected by the corresponding adjustment axis on the machine tool, which can improve the correction efficiency and effect of the posture of the electrode 3, greatly shorten the verification time, and improve the working efficiency.

[0106] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0107] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0108] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0109] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0110] In the present invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0111] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electrode posture calibration device, characterized in that: include: a body having a reference portion; a first hole, the first hole being formed on the body and passing through the body, the first hole having a first end and a second end, the reference portion being used to determine a position of the body relative to a workpiece so that the first hole corresponds to a hole position to be machined on the workpiece, and a posture of the electrode relative to the workpiece is verified through the first hole; A detection sleeve, wherein the first end and the second end are both provided with the detection sleeve, and the detection sleeve is coaxially arranged with the first hole; The first end and the second end of the first hole are both provided with counterbores, the detection sleeve is embedded in the counterbores, and the outer end of the detection sleeve close to the outer wall of the body is flush with the outer wall of the body, or the outer end of the detection sleeve close to the outer wall of the body is recessed into the outer wall of the body; The body is made of transparent material; The end of the detection sleeve located at one end of the first hole close to the electrode has a guide portion; The body is in a frustum shape, with a first cavity in the middle of the body, an annular boss at one end in the axial direction of the body, a plurality of stepped surfaces on the circumferential outer wall of the body, and at least a portion of the body being hollowed out; Also included is a detection component, the detection component comprising: A power supply, one end of which is connected to the electrode, the detection sleeve is conductive, and the other end of which is connected to the detection sleeve; A detection component is used to detect whether the electrode and the detection sleeve are in contact and conduct a circuit.

2. The electrode posture verification device according to claim 1, characterized in that: The inner diameter D of the detection sleeve and the outer diameter d of the electrode satisfy the following conditions: 0.1 mm ≤ Dd ≤ 0.5 mm.

3. The electrode posture verification device according to claim 2, characterized in that: The inner diameter of the first hole is greater than or equal to 1.5d.

4. The electrode posture verification device according to claim 1, characterized in that: There are multiple first holes, and the multiple first holes are arranged at intervals on the body.

5. An electric spark drilling device, characterized in that: include: A machine tool comprising an electrode for electric spark machining, a wire feed shaft, and a first clamping portion, wherein the first clamping portion is used to fix a workpiece, and the electrode is mounted on the wire feed shaft; The electrode posture verification device according to any one of claims 1 to 4, wherein the main body is arranged in alignment with the workpiece.

6. The electric spark drilling equipment according to claim 5, characterized in that: In use, the following steps are included: S101, placing the workpiece and the electrode posture calibration device on the machine tool, and locating the main body of the positive electrode posture calibration device and the workpiece; S102, inputting electrode operating parameters to drive the electrode to perform punching and feeding action; S103, judging whether to adjust the electrode operating parameters based on the positional relationship between the electrode and the end of the first hole close to the electrode, and if so, adjusting the electrode operating parameters; S104: If not, the electrode continues to perform the punching feeding action, and based on the positional relationship between the electrode and the end of the first hole away from the electrode, determines whether to adjust the electrode operating parameters; if so, adjust the electrode operating parameters; If not, then the electrode posture verification is completed in S105.

7. The electric spark drilling equipment according to claim 6, characterized in that: In step S103, determining whether to adjust the electrode operating parameters is based on whether the electrode is in contact with the detection sleeve at one end of the first hole closer to the electrode; in step S104, determining whether to adjust the electrode operating parameters is based on whether the electrode is in contact with the detection sleeve at one end of the first hole farther from the electrode; And / or, the adjustment of the electrode operating parameters in step S103 is: adjusting the linear axis of the machine tool to correct the position deviation of the electrode; the adjustment of the electrode operating parameters in step S104 is: adjusting the rotation axis of the machine tool and synchronously adjusting the linear axis of the machine tool to correct the axis deviation of the electrode.

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