Guiding mechanism for wire cutting of wire electric spark

Abstract

The utility model provides a guide mechanism for wire cutting of wire electric sparks, which comprises an inner tube, an outer tube is sleeved outside the inner tube, a wire penetrating component is arranged in the inner tube, and a cooling component is arranged in the outer tube. The wire penetrating assembly comprises a sliding groove formed in the inner wall of the inner pipe, a sliding base is slidably connected into the sliding groove, a first clamping plate is fixedly connected to one side of the sliding base, a connecting plate is fixedly connected to the other side of the sliding base, a pull rod is slidably connected into the connecting plate, and the surface of the pull rod is sleeved with a pressing spring. Compared with the prior art, the electrode wire clamping device has the advantages that the sliding seat is pulled to slide along the sliding groove, the electrode wire is fixed by the second clamping plate and the first clamping plate in cooperation with the connecting plate, the pull rod and the compression spring, and the electrode wire is clamped by the second clamping plate and the first clamping plate. And finally, the electrode wire can be driven by the sliding seat to penetrate into the inner pipe, so that wire penetrating can be quickly carried out, and the wire penetrating efficiency can be improved.

Description

Technical Field

[0001] This utility model is a guide mechanism for wire EDM (Electrical Discharge Machining) fine wire cutting, belonging to the field of wire EDM machine tools. Background Technology

[0002] Wire electrical discharge machining (EDM) machines are specialized machine tools based on electrical discharge machining technology. They fall under the category of electrical machining, and their core principle is to achieve cutting by using the instantaneous high temperature generated by pulsed discharge to corrode metal materials. In wire EDM machines, the guiding mechanism is a crucial component that ensures stable operation of the electrode wire and improves machining accuracy and surface quality.

[0003] In the prior art, some guide mechanisms for wire EDM include a replacement tube and a base tube sleeved on the surface of the replacement tube. The electrode wire can be positioned when it moves by inserting it into the replacement tube. Since the replacement tube and the base tube are connected by a thread, the replacement tube can be replaced, which facilitates the maintenance of the mechanism. However, due to the insufficient rigidity of the electrode wire and the long length of the replacement tube, it takes a long time to thread the wire, which reduces the efficiency of threading. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a guide mechanism for wire EDM (Electrical Discharge Machining) to solve the problem mentioned in the background art that some guide mechanisms for wire EDM have insufficient rigidity of electrode wire and require a long replacement tube, which leads to a long time for wire threading and thus reduces the efficiency of wire threading.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a guide mechanism for wire EDM fine wire cutting, comprising an inner tube, an outer tube sleeved on the inner tube, a wire threading assembly disposed inside the inner tube, and a cooling assembly disposed inside the outer tube;

[0006] The threading assembly includes a groove formed on the inner wall of the inner tube, a slide block slidably connected in the groove, a first clamping plate fixedly connected to one side of the slide block, a connecting plate fixedly connected to the other side of the slide block, a pull rod slidably connected in the connecting plate, a compression spring sleeved on the surface of the pull rod, and a second clamping plate fixedly connected to the end of the pull rod near the first clamping plate.

[0007] Furthermore, the cooling assembly includes an inlet pipe fixedly connected to the surface of the outer tube, a cooling chamber is formed between the inner tube and the outer tube, and an outlet pipe is fixedly connected to the surface of the outer tube below the inlet pipe. Both the inlet pipe and the outlet pipe are fixedly connected with threads.

[0008] Furthermore, the inner tube and the outer tube are connected by a thread, and the outer side of the inner tube is stepped.

[0009] Furthermore, a sealing gasket is fitted on the surface of the inner tube, and a sealing ring is fixedly connected to the inner wall of the outer tube.

[0010] Furthermore, a number of heat sinks are fixedly connected to the surface of the inner tube, and the heat sinks are made of thermally conductive material.

[0011] Furthermore, the slide is L-shaped, and the height of the slide is greater than the height of the inner tube.

[0012] Furthermore, both the first clamping plate and the connecting plate are L-shaped, and the sum of the lengths of the first clamping plate and the connecting plate is less than the diameter of the inner tube.

[0013] The beneficial effects of this utility model are as follows: Pulling the slide block allows it to slide along the slide groove to the other end of the inner tube. With the help of the connecting plate, pull rod and clamping spring, enough space is left between the second clamping plate and the first clamping plate to accommodate the electrode wire. Finally, the electrode wire will be inserted into the inner tube under the action of the slide block, which facilitates the wire threading quickly and helps to improve the efficiency of wire threading.

[0014] During use, the coolant enters the cooling chamber through the inlet pipe and flows out of the mechanism through the outlet pipe, thus cooling the electrode wire. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a guide mechanism for wire EDM fine wire cutting according to the present invention;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of a guide mechanism for wire EDM (Electrical Discharge Machining) of the present invention.

[0018] Figure 3 This is a schematic diagram of the inner tube structure of a guide mechanism for wire EDM (Electrical Discharge Machining) of the present invention.

[0019] Figure 4 This is an enlarged structural diagram of point A of the guide mechanism for wire EDM fine wire cutting according to this utility model.

[0020] In the diagram: 1. Inner tube; 2. Outer tube; 3. Threading assembly; 301. Slide groove; 302. Slide seat; 303. First clamping plate; 304. Connecting plate; 305. Pull rod; 306. Compression spring; 307. Second clamping plate; 4. Cooling assembly; 401. Liquid inlet pipe; 402. Cooling chamber; 403. Liquid outlet pipe; 5. Sealing gasket; 6. Sealing ring; 7. Heat sink. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a guide mechanism for wire EDM fine wire cutting, including an inner tube 1, an outer tube 2 sleeved on the inner tube 1, a wire threading assembly 3 inside the inner tube 1, and a cooling assembly 4 inside the outer tube 2.

[0023] The threading assembly 3 includes a groove 301 formed in the inner wall of the inner tube 1. A slide block 302 is slidably connected in the groove 301. A first clamping plate 303 is fixedly connected to one side of the slide block 302. A connecting plate 304 is fixedly connected to the other side of the slide block 302. A pull rod 305 is slidably connected in the connecting plate 304. A compression spring 306 is sleeved on the surface of the pull rod 305. A second clamping plate 307 is fixedly connected to one end of the pull rod 305 near the first clamping plate 303.

[0024] Pulling the slide block 302 causes it to slide along the slide groove 301 to the other end of the inner tube 1. With the help of the connecting plate 304, the pull rod 305 and the compression spring 306, enough space is left between the second clamping plate 307 and the first clamping plate 303 to accommodate the electrode wire. Finally, the electrode wire will be inserted into the inner tube 1 under the drive of the slide block 302, which facilitates the wire threading quickly and helps to improve the efficiency of wire threading.

[0025] Furthermore, the slide 302 is L-shaped, and its height is greater than that of the inner tube 1. The L-shape of the slide 302 and the fact that its height is greater than that of the inner tube 1 ensure that one end of the slide 302 can protrude from the inner tube 1, thereby facilitating the gripping and pulling of the slide 302 from one end of the inner tube 1.

[0026] Furthermore, both the first clamping plate 303 and the connecting plate 304 are L-shaped, and the sum of their lengths is less than the diameter of the inner tube 1. The L-shape of the first clamping plate 303 and the connecting plate 304, and the fact that their sum is less than the diameter of the inner tube 1, prevents friction between these components and the inner wall of the inner tube 1 during the movement of the slide block 302.

[0027] Please see Figures 1 to 2 The present invention provides a technical solution: the cooling component 4 includes an inlet pipe 401 fixedly connected to the surface of the outer pipe 2, a cooling chamber 402 is formed between the inner pipe 1 and the outer pipe 2, and an outlet pipe 403 is fixedly connected to the surface of the outer pipe 2 below the inlet pipe 401. The surfaces of the inlet pipe 401 and the outlet pipe 403 are both fixedly connected with threads.

[0028] During use, the coolant enters the cooling chamber 402 through the inlet pipe 401 and flows out of the mechanism through the outlet pipe 403, which can cool the electrode wire.

[0029] Furthermore, the inner tube 1 and the outer tube 2 are connected by threads, and the outer side of the inner tube 1 is stepped. The threaded connection between the inner tube 1 and the outer tube 2 allows the inner tube 1 to be detached from the outer tube 2, thus making the inner tube 1 and the outer tube 2 independent of each other. When a single component is damaged, only the damaged component needs to be replaced, which facilitates the maintenance of the mechanism. The stepped shape of the outer side of the inner tube 1 allows sufficient space between the inner tube 1 and the outer tube 2 to cool the electrode wire inserted into the inner tube 1.

[0030] Furthermore, a sealing gasket 5 is fitted onto the surface of the inner tube 1, and a sealing ring 6 is fixedly connected to the inner wall of the outer tube 2. The sealing gasket 5 and the sealing ring 6 effectively improve the sealing performance between the inner tube 1 and the outer tube 2, thereby preventing coolant leakage from the mechanism.

[0031] Preferably, a plurality of heat sinks 7 are fixedly connected to the surface of the inner tube 1, and the heat sinks 7 are made of thermally conductive material. The heat sinks 7 can increase the contact area between the inner tube 1 and the coolant, thereby effectively improving the heat dissipation effect on the electrode wire.

[0032] Detailed implementation: Pull the slide block 302 upward so that it slides along the groove 301 opened on the inner wall of the inner tube 1 until it moves to the other end of the inner tube 1. Then, pull the lever 305 towards the connecting plate 304 so that it drives the second clamping plate 307 fixed at one end to move in the same direction and squeeze the compression spring 306 until there is enough space between the second clamping plate 307 and the first clamping plate 303 fixed on one side of the slide block 302 to accommodate the electrode wire. Then, put the electrode wire between the first clamping plate 303 and the second clamping plate 307. Next, release the lever 305 so that it drives the second clamping plate 307 to reset under the action of the compression spring 306, thus fixing the electrode wire at one end of the slide block 302. Finally, release the slide block 302 so that it can drive the electrode wire to pass through the inner tube 1, which facilitates quick wire threading and helps to improve the efficiency of wire threading.

[0033] The inlet pipe 401 and outlet pipe 403, which are fixed to the surface of the outer tube 2, are connected to external pipes respectively. During the use of the mechanism, the coolant will enter the cooling chamber 402 formed by the inner tube 1 and the outer tube 2 through the inlet pipe 401 and flow to the outside of the mechanism through the outlet pipe 403, which can cool the electrode wire.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A guiding mechanism for wire EDM (Electrical Discharge Machining) of fine wire, comprising an inner tube (1), wherein an outer tube (2) is provided outside the inner tube (1), characterized in that: The inner tube (1) is provided with a wire threading assembly (3), and the outer tube (2) is provided with a cooling assembly (4). The threading assembly (3) includes a groove (301) formed on the inner wall of the inner tube (1). A slide block (302) is slidably connected in the groove (301). A first clamping plate (303) is fixedly connected to one side of the slide block (302). A connecting plate (304) is fixedly connected to the other side of the slide block (302). A pull rod (305) is slidably connected in the connecting plate (304). A compression spring (306) is sleeved on the surface of the pull rod (305). A second clamping plate (307) is fixedly connected to one end of the pull rod (305) near the first clamping plate (303).

2. A wire electro-discharge wire cutting guide mechanism according to claim 1, characterized in that: The cooling component (4) includes an inlet pipe (401) fixedly connected to the surface of the outer tube (2), a cooling chamber (402) is formed between the inner tube (1) and the outer tube (2), and an outlet pipe (403) is fixedly connected to the surface of the outer tube (2) below the inlet pipe (401). The surfaces of the inlet pipe (401) and the outlet pipe (403) are both fixedly connected with threads.

3. A wire electro-discharge wire cutting guide mechanism according to claim 1, characterized in that: The inner tube (1) and the outer tube (2) are connected by a thread, and the outer side of the inner tube (1) is stepped.

4. The wire electro-discharge wire cutting guide mechanism according to claim 1, characterized in that: The inner tube (1) is fitted with a sealing gasket (5), and the inner wall of the outer tube (2) is fixedly connected with a sealing ring (6).

5. A wire electro-discharge wire cutting guide mechanism according to claim 1, characterized in that: The inner tube (1) has several heat sinks (7) fixedly connected to its surface, and the heat sinks (7) are made of thermally conductive material.

6. A wire electro-discharge wire cutting guide mechanism according to claim 1, characterized in that: The slide (302) is L-shaped, and the height of the slide (302) is greater than the height of the inner tube (1).

7. A wire electro-discharge wire cutting guide mechanism according to claim 1, wherein: The first clamping plate (303) and the connecting plate (304) are both L-shaped, and the sum of the lengths of the first clamping plate (303) and the connecting plate (304) is less than the diameter of the inner tube (1).

Images