A wire sawing apparatus

Abstract

This utility model discloses a wire EDM device, relating to the field of wire EDM technology, including a device frame, a molybdenum wire tension adjustment mechanism, a three-way adjustment mechanism, a energizing mechanism, an upper wire threading mechanism, a lower wire threading mechanism, and a wire return mechanism. The energizing mechanism is mounted on the surface of the three-way adjustment mechanism and consists of a base, an insulating seat, a pad, a conductive seat, and a guide wheel. The insulating seat is made of engineering plastic, the pad is made of brass, and the conductive seat is made of tungsten carbide, ensuring stable contact and energization of the molybdenum wire with the conductive seat during movement, thus becoming the cutting electrode. This design not only achieves efficient and stable energization of the molybdenum wire but also effectively prevents grounding through the insulating seat, ensuring equipment safety. Simultaneously, the three-way adjustment mechanism can flexibly adjust the position of the upper wire threading mechanism, working in conjunction with the molybdenum wire tension adjustment mechanism and the wire return mechanism to achieve high-precision, high-efficiency wire EDM processing of the workpiece, significantly reducing processing costs and maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting technology, specifically to a wire cutting device. Background Technology

[0002] In modern manufacturing, wire EDM technology, as a high-precision and high-efficiency machining method, is widely used in the cutting of various metal materials. Wire EDM technology uses a continuously moving fine metal wire (usually molybdenum or copper wire) as an electrode to remove metal from the workpiece through pulsed spark discharge, thereby achieving the cutting purpose. However, as the manufacturing industry's requirements for machining accuracy, efficiency, and quality continue to increase, traditional wire EDM equipment has gradually revealed many limitations in performance and function, making it difficult to meet the ever-growing machining demands.

[0003] Regarding electrode wire electrification, while traditional equipment can electrify the electrode wire, it often suffers from unstable electrification and susceptibility to grounding. This leads to uneven spark discharge during cutting and even short circuits, severely impacting cutting performance and equipment lifespan. Furthermore, traditional equipment suffers from poor design and inconvenient operation in the circulation and recovery of the molybdenum wire, resulting in wire breakage and tangling, increasing processing costs and downtime. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wire cutting device that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wire cutting device, including a device frame, and further comprising: A molybdenum wire tension adjustment mechanism is installed on the front of the equipment frame and is used to adjust the tension of the molybdenum wire. A three-way adjustment mechanism is installed on the top of the equipment rack; An electrification mechanism, installed on the front of the three-way adjustment mechanism, is used to electrify the molybdenum wire into an electrode; The upper threading mechanism is installed at the drive end of the three-way adjustment mechanism; The lower threading mechanism is installed on one side of the bottom of the equipment frame; A wire recovery mechanism, installed on the other side of the bottom of the equipment frame, is used to release the molybdenum wire while recovering it.

[0006] Furthermore, the molybdenum wire circulates among the molybdenum wire tension adjustment mechanism, the electrical charging mechanism, the upper wire threading mechanism, the lower wire threading mechanism, and the wire return mechanism.

[0007] Furthermore, the three-axis adjustment mechanism includes an X-axis linear drive module, a Y-axis linear drive module, and a Z-axis linear drive module, used to adjust the position of the upper threading mechanism on the X, Y, and Z axes.

[0008] Furthermore, the X-axis linear drive module is installed on the top of the equipment frame, the Y-axis linear drive module is installed on the drive end of the X-axis linear drive module, the Z-axis linear drive module is installed on the drive end of the Y-axis linear drive module, and the upper wire threading mechanism is installed on the drive end of the Z-axis linear drive module.

[0009] Furthermore, the electrification mechanism includes: The base is mounted on the surface of the three-way adjustment mechanism; An insulating base, mounted on the surface of the base, is made of engineering plastic. A pad, made of brass, is installed on the upper part of the insulating base; A conductive base, installed on the upper part of the insulating base, is made of tungsten steel. The molybdenum wire passes through the conductive base and comes into contact with it during its movement to become an electrode.

[0010] Furthermore, the electrification mechanism also includes: The guide wheel is rotatably connected to the surface of the base.

[0011] This utility model provides a wire cutting device. Compared with the prior art, it has the following advantages: This wire EDM machine utilizes a energizing mechanism that achieves efficient and stable charging of the molybdenum wire through precise contact between the conductive base and the wire. The conductive base, made of tungsten steel, possesses high hardness, high wear resistance, and excellent conductivity, ensuring a continuous and stable supply of electrical energy to the molybdenum wire during cutting. This guarantees the uniformity and stability of the spark discharge, improving cutting efficiency and quality. The insulating base within the energizing mechanism is made of engineering plastic, offering excellent insulation properties. This design effectively prevents grounding issues that may occur when the conductive base is energized, avoiding equipment malfunctions and safety hazards caused by short circuits or leakage, ensuring the safe and stable operation of the equipment. Because the energizing mechanism ensures the stability and uniformity of the molybdenum wire's charge, it reduces the unevenness of the spark discharge during cutting, avoiding excessive heat-affected zones and surface roughness, thereby improving cutting accuracy and workpiece surface quality. Attached Figure Description

[0012] Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the present invention from a second perspective; Figure 3This is a schematic diagram of the three-way adjustment mechanism in this utility model; Figure 4 This is a schematic diagram of the electrification mechanism in this utility model.

[0013] In the diagram: 1. Equipment frame; 2. Tooling; 3. Molybdenum wire tension adjustment mechanism; 4. Three-way adjustment mechanism; 41. X-axis linear drive module; 42. Y-axis linear drive module; 43. Z-axis linear drive module; 5. Electrification mechanism; 51. Base; 52. Insulating seat; 53. Pad; 54. Conductive seat; 55. Guide wheel; 6. Upper wire threading mechanism; 7. Lower wire threading mechanism; 8. Wire return mechanism. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a wire cutting device, mainly composed of key components such as a device frame 1, a molybdenum wire tension adjustment mechanism 3, a three-way adjustment mechanism 4, an electrification mechanism 5, an upper wire threading mechanism 6, a lower wire threading mechanism 7, and a wire return mechanism 8; The equipment frame 1 serves as the supporting foundation for the entire equipment. A molybdenum wire tension adjustment mechanism 3 is installed on its front side to precisely adjust the tension of the molybdenum wire, ensuring its stability and accuracy during the cutting process. A three-way adjustment mechanism 4 is installed on the top of the equipment frame 1. This mechanism can flexibly adjust the position of the upper wire threading mechanism 6 on the X, Y, and Z axes, thereby achieving precise cutting of different shapes and positions on the workpiece.

[0016] The front of the three-way adjustment mechanism 4 is further equipped with an electrification mechanism 5, which is responsible for electrifying the molybdenum wire to become an electrode, providing the necessary electrical energy for the wire cutting process. At the same time, the drive end of the three-way adjustment mechanism 4 is equipped with an upper wire threading mechanism 6, which is used to accurately guide the molybdenum wire to the cutting position.

[0017] A wire feeding mechanism 7 is installed on one side of the bottom of the equipment frame 1, and a wire return mechanism 8 is installed on the other side. The wire feeding mechanism 7 is responsible for guiding the molybdenum wire to below the workpiece, while the wire return mechanism 8 is responsible for releasing a new molybdenum wire while recovering the old one, ensuring the continuity and stability of the molybdenum wire during the cutting process. The three-way adjustment mechanism 4 consists of an X-axis linear drive module 41, a Y-axis linear drive module 42, and a Z-axis linear drive module 43. The X-axis linear drive module 41 is mounted on the top of the equipment frame 1, and the Y-axis linear drive module 42 is mounted on its drive end. The Z-axis linear drive module 43 is further mounted on the drive end of the Y-axis linear drive module 42, and the upper wire threading mechanism 6 is mounted on the drive end of the Z-axis linear drive module 43.

[0018] Through the linear drive modules along the X, Y, and Z axes, the three-axis adjustment mechanism 4 can precisely adjust the position of the wire threading mechanism 6 in three-dimensional space, thereby achieving cutting of any shape and position on the workpiece. Since the specific structures and driving principles of the X-axis linear drive module 41, Y-axis linear drive module 42, and Z-axis linear drive module 43 are existing known technologies, they will not be described in detail here. The electrification mechanism 5 includes a base 51 mounted on the surface of the three-way adjustment mechanism 4. An insulating seat 52 is mounted on the surface of the base 51, and a guide wheel 55 is rotatably connected to it. A pad 53 and a conductive seat 54 are respectively mounted on the upper part of the insulating seat 52.

[0019] During the operation of the equipment, the molybdenum wire travels along the conductive base 54 and comes into contact with it. Since the conductive base 54 is charged, the molybdenum wire becomes charged and becomes an electrode, providing the necessary electrical energy for the subsequent wire cutting process.

[0020] The insulating base 52 is made of engineering plastic, which has excellent insulation properties, ensuring that even if the conductive base 54 is energized, there will be no grounding, thus guaranteeing the safety and stability of the equipment. The pad 53 is made of brass, which has good conductivity and wear resistance, ensuring a stable connection between the conductive base 54 and the base 51. The conductive base 54 is made of tungsten carbide, which has high hardness, high wear resistance, and good conductivity, ensuring stable contact and power transmission between the molybdenum wire and the conductive base 54. When the equipment is in operation, the workpiece to be cut is placed on fixture 2. Fixture 2 is an independent structure with an external support structure. It does not contact the equipment but can fix the workpiece to be cut. The specific fixing structure is existing known technology and will not be described in detail here. After the equipment is started, the wire return mechanism 8 begins to wind up the molybdenum wire, and at the same time, new molybdenum wire is released during the winding process. In this way, the molybdenum wire continuously circulates, preparing for the subsequent cutting process. When the molybdenum wire passes through the conductive seat 54, the molybdenum wire becomes charged and becomes an electrode because the conductive seat 54 is charged. At this time, the molybdenum wire is ready for wire cutting. The X, Y, and Z axis linear drive module of the three-way adjustment mechanism 4 precisely adjusts the position of the upper wire threading mechanism 6 in three-dimensional space. In this way, the molybdenum wire can be accurately guided to the cutting position on the workpiece and cut according to the preset shape and path. When the workpiece is cut, the equipment stops running. At this time, the wire return mechanism 8 stops winding and releasing the molybdenum wire, and the molybdenum wire stops circulating. Remove the cut workpiece from fixture 2 to complete the entire cutting process.

Claims

1. A wire cutting device, comprising a device frame (1), characterized in that, Also includes: A molybdenum wire tension adjustment mechanism (3) is installed on the front of the equipment frame (1) and is used to adjust the tension of the molybdenum wire. A three-way adjustment mechanism (4) is installed on top of the equipment rack (1); The electrification mechanism (5) is installed on the front of the three-way adjustment mechanism (4) and is used to electrify the molybdenum wire into an electrode. The upper threading mechanism (6) is installed at the drive end of the three-way adjustment mechanism (4); The lower threading mechanism (7) is installed on one side of the bottom of the equipment frame (1); A wire recovery mechanism (8) is installed on the other side of the bottom of the equipment frame (1) for releasing the molybdenum wire while recovering it; The electrification mechanism (5) includes: The base (51) is mounted on the surface of the three-way adjustment mechanism (4); An insulating base (52) is installed on the surface of the base (51) and is made of engineering plastic. A pad (53) is installed on the upper part of the insulating base (52) and is made of brass. The conductive base (54) is installed on the upper part of the insulating base (52) and is made of tungsten steel. The molybdenum wire passes through the conductive base (54) and comes into contact with the conductive base (54) during its movement to become an electrode.

2. The wire cutting equipment according to claim 1, characterized in that, The molybdenum wire circulates among the molybdenum wire tension adjustment mechanism (3), the electrification mechanism (5), the upper wire threading mechanism (6), the lower wire threading mechanism (7), and the wire return mechanism (8).

3. The wire cutting equipment according to claim 1, characterized in that, The three-axis adjustment mechanism (4) includes an X-axis linear drive module (41), a Y-axis linear drive module (42), and a Z-axis linear drive module (43), which are used to adjust the position of the upper threading mechanism (6) on the X, Y, and Z axes.

4. The wire cutting equipment according to claim 3, characterized in that, The X-axis linear drive module (41) is installed on the top of the equipment frame (1), the Y-axis linear drive module (42) is installed at the drive end of the X-axis linear drive module (41), the Z-axis linear drive module (43) is installed at the drive end of the Y-axis linear drive module (42), and the upper wire threading mechanism (6) is installed at the drive end of the Z-axis linear drive module (43).

5. The wire cutting equipment according to claim 1, characterized in that, The electrification mechanism (5) also includes: The guide wheel (55) is rotatably connected to the surface of the base (51).

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