Wire cutting machine wire feeding cylinder with protection device

Abstract

The invention discloses a wire cutting machine tool wire feeding wire cylinder with a protection device, and relates to the technical field of wire cutting machine tools. According to the wire cutting machine wire feeding wire cylinder with the protection device, the wire cylinder body and the wire cylinder shaft rod are designed in a split mode, during assembly or disassembly, only the end sealing plates at the two ends need to be assembled or disassembled, on one hand, the balance state of the replaced wire cylinder body during operation is not affected, and on the other hand, the wire cylinder body is not damaged; and meanwhile, compared with a traditional integral wire cylinder body, the wire cylinder body and the wire cylinder shaft rod are matched in a split mode, the wire cylinder shaft rod can be conveniently and independently replaced when being abraded, the maintenance cost is saved, and meanwhile the operation stability of the wire cylinder body is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of wire EDM machine tool technology, specifically to a wire EDM machine tool feed spool with a protective device. Background Technology

[0002] Wire EDM machines are equipped with wire feed spools for feeding the wire. Referring to Chinese patent publication number CN203236081U, "Wire Feed Spool for Wire EDM Machine with Protective Device," this patent points out that in existing technology, the wire feed spool is directly exposed. The molybdenum wire used in wire EDM is thin and soft, making it easily damaged. The exposed wire feed spool makes the molybdenum wire more susceptible to damage, and the exposed spool body also increases the risk of hand injury. Furthermore, the wire feed spool contains numerous control devices, which are also exposed in the existing technology, making them not only unsightly but also easily damaged by the harsh workshop environment, affecting the overall lifespan of the wire EDM machine. However, this equipment still suffers from the problem of cumbersome replacement of worn wire feed spools, increasing maintenance costs. To address these issues, we propose a wire feed spool for wire EDM machines with a protective device. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a wire feed drum for a wire EDM machine with a protective device, thus solving the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a wire cutting machine tool with a protective device, comprising a wire drum body and a positioning base, wherein the wire drum body is rotatably connected to the middle of the top surface of the positioning base, and a wire drum shaft is fixedly installed inside the wire drum body, wherein a locking component is provided between the wire drum shaft and the wire drum body for fixing the wire drum body and the wire drum shaft together as one unit; The locking assembly includes two end sealing plates, which are respectively fixed at both ends of the yarn drum body. Multiple support locking plates adapted to the end sealing plates are fixedly installed inside the yarn drum body. A positioning shaft is fixedly sleeved on the outside of the spool shaft, and positioning ends are fixedly installed at both ends of the positioning shaft. The end sealing plate is provided with a matching insertion slot on the side near the positioning end. The end of the wire spool body is equipped with a molybdenum wire locking end, which is used to lock the end of the molybdenum wire to be wired.

[0005] Preferably, the end sealing plate is provided with a plurality of locking bolts inside, and both ends of the support locking plate are provided with threaded through holes adapted to the locking bolts. The locking bolts are used to lock the end sealing plate, the support locking plate and the wire drum body together.

[0006] Preferably, the top surface of the positioning base is provided with assembly slots on both sides, which are used to limit the assembly of the two ends of the screw shaft.

[0007] Preferably, a locking shaft is installed at the end of the wire drum body. The locking shaft passes through the wire drum body and is slidably connected to it. The locking end of the molybdenum wire is fixedly connected to the locking shaft. The end of the locking shaft away from the locking end of the molybdenum wire passes into the interior of the wire drum body. A return spring is sleeved on the end of the locking shaft located inside the wire drum body.

[0008] Preferably, the end of the locking shaft is fixedly sleeved with an anti-slip end, and the end of the anti-slip end is in contact with the molybdenum wire locking end.

[0009] Preferably, the spool shaft and the spool body are always kept coaxial.

[0010] Preferably, a counterweight ring frame is fixedly installed at both ends of the wire drum body, and a number of counterweight bolts are fixedly installed on the outer side of the counterweight ring frame.

[0011] Preferably, a protective component is provided between the yarn drum body and the positioning base, the protective component being used to protect the yarn drum body.

[0012] Preferably, the protective component includes an arc-shaped protective shell, which is fixedly installed on the top surface of the positioning base. The arc-shaped protective shell is installed at the bottom of the bobbin body and a distance is left between it and the bobbin body. An internal protective frame is slidably installed inside the arc-shaped protective shell, and multiple support springs are fixedly installed between the end of the internal protective frame and the inside of the arc-shaped protective shell.

[0013] Preferably, the arc-shaped protective shell is provided with fixing bolts inside, which are used to lock the arc-shaped protective shell to the internal protective frame.

[0014] This invention provides a wire feed spool for a wire EDM machine with a protective device. Compared with the prior art, it has the following advantages: (1) The wire cutting machine tool with protective device has a wire drum. By adopting a split design between the wire drum body and the wire drum shaft, it is only necessary to assemble or disassemble the end plates at both ends when assembling or disassembling. On the one hand, it will not affect the balance of the replaced wire drum body during operation. On the other hand, compared with the traditional integral wire drum body, the split design between the wire drum body and the wire drum shaft makes it easy to replace the wire drum shaft when it is worn, saving maintenance costs while ensuring the operational stability of the wire drum body.

[0015] (2) The wire cutting machine with protective device has a wire feeding drum. When the molybdenum wire is fixed by the setting of the molybdenum wire locking end, the locking end of the molybdenum wire is pulled outward, so that the locking shaft slides outward inside the wire drum body and squeezes the return spring. Then the end of the molybdenum wire to be locked is wrapped around the outside of the anti-slip end and the molybdenum wire locking end is released. The molybdenum wire locking end can lock the molybdenum wire through the cooperation of the locking shaft and the return spring. Compared with the traditional locking method, the convenience of operation is further improved.

[0016] (3) The wire cutting machine with protective device can slide outward inside the arc-shaped protective shell by pulling the inner protective frame outward during operation, until the end of the inner protective frame is located outside the running molybdenum wire. The arc-shaped protective shell and the inner protective frame are locked together by fixing bolts to achieve operation protection and improve the operation safety of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the positioning base structure of the present invention; Figure 3 For the present invention Figure 2 Side view structural diagram; Figure 4 This is a schematic cross-sectional view of the wire tube body of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 For the present invention Figure 4 Side view structural diagram; Figure 7 This is an exploded view of the wire drum shaft and end sealing plate of the present invention; Figure 8 This is a cross-sectional view of the molybdenum wire locking end and locking shaft of the present invention.

[0018] In the diagram: 1. Wire drum body; 2. Positioning base; 201. Assembly slot; 3. Counterweight ring frame; 301. Counterweight bolt; 4. Arc-shaped protective shell; 5. Internal protective frame; 501. Support spring; 6. Wire drum shaft; 601. Positioning shaft; 602. Positioning end; 7. End sealing plate; 701. Locking bolt; 702. Insertion slot; 8. Molybdenum wire locking end; 9. Locking shaft; 901. Return spring; 10. Anti-slip end; 11. Support locking plate; 111. Threaded through hole. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-8 The present invention provides two technical solutions, specifically including the following embodiments: Example 1: In this embodiment of the invention, a wire cutting machine tool with a protective device includes a wire drum body 1 and a positioning base 2. The wire drum body 1 is rotatably connected to the middle of the top surface of the positioning base 2. A wire drum shaft 6 is fixedly installed inside the wire drum body 1. A locking component is provided between the wire drum shaft 6 and the wire drum body 1 to fix the wire drum body 1 and the wire drum shaft 6 into a whole. In this embodiment of the invention, specifically, when in use, the wire drum body 1 is first assembled onto the cutting machine tool through the positioning base 2, and then the drive motor is connected to the wire drum shaft 6 through a coupling or track, which can drive the wire drum shaft 6 and the wire drum body 1 to rotate inside the positioning base 2 to perform wire feeding or unloading operations. In this embodiment of the invention, the aforementioned drive motor and the transmission components between the drive motor and the screw shaft 6 are all existing devices and will not be described in detail here. In this embodiment of the invention, specifically, the locking component includes an end sealing plate 7, there are two end sealing plates 7 and they are respectively fixed at both ends of the yarn drum body 1, and a plurality of support locking plates 11 adapted to the end sealing plates 7 are fixedly installed inside the yarn drum body 1. In this embodiment of the invention, specifically, a positioning shaft 601 is fixedly sleeved on the outer side of the spool shaft 6, and positioning ends 602 are fixedly installed at both ends of the positioning shaft 601. The end sealing plate 7 is provided with a matching insertion slot 702 on the side near the positioning ends 602. In this embodiment of the invention, specifically, by setting the spool shaft 6 and the positioning shaft 601, when assembling the spool body 1, one end sealing plate 7 can be fixed to the spool body 1 first, and then the spool shaft 6 can be inserted into the spool body 1, so that the positioning ends 602 fixedly installed at both ends of the positioning shaft 601 can be inserted into the corresponding insertion slots 702. Then, the other end sealing plate 7 can be fixedly installed to the other end of the spool body 1, thus completing the assembly between the spool body 1 and the spool shaft 6. Compared with the traditional integral spool body 1, the separate cooperation between the spool body 1 and the spool shaft 6 makes it easier to replace the spool shaft 6 when it is worn, saving maintenance costs while ensuring the operational stability of the spool body 1. In this embodiment of the invention, specifically, a molybdenum wire locking end 8 is installed at the end of the wire spool body 1. The molybdenum wire locking end 8 is used to lock the end of the molybdenum wire to be wired. In this embodiment of the invention, specifically, the end sealing plate 7 is provided with a plurality of locking bolts 701 inside, and both ends of the support locking plate 11 are provided with threaded through holes 111 that are adapted to the locking bolts 701. The locking bolts 701 are used to lock the end sealing plate 7, the support locking plate 11, and the wire drum body 1. In this embodiment of the invention, specifically, the locking bolt 701 is connected to the threaded through hole 111 by a thread. With the cooperation of the end sealing plate 7, the assembly and disassembly operations between the screw spool shaft 6 and the positioning shaft 601 and the screw spool body 1 can be completed. In this embodiment of the invention, specifically, the top surface of the positioning base 2 is provided with assembly slots 201 on both sides, and the assembly slots 201 are used to limit the assembly of both ends of the screw shaft 6. In this embodiment of the invention, specifically, a locking shaft 9 is installed at the end of the wire drum body 1. The locking shaft 9 passes through the wire drum body 1 and is slidably connected to it. The molybdenum wire locking end 8 is fixedly connected to the locking shaft 9. The end of the locking shaft 9 away from the molybdenum wire locking end 8 passes into the inside of the wire drum body 1. A return spring 901 is sleeved on the end of the locking shaft 9 located inside the wire drum body 1. In this embodiment of the invention, specifically, the end of the locking shaft 9 is fixedly sleeved with an anti-slip end 10, and the end of the anti-slip end 10 is in contact with the molybdenum wire locking end 8. In this embodiment of the invention, specifically, by setting the molybdenum wire locking end 8, when fixing the molybdenum wire, the molybdenum wire locking end 8 is first pulled outward, so that the locking shaft 9 slides outward inside the wire drum body 1, squeezing the return spring 901. Then, the end of the molybdenum wire to be locked is wrapped around the outside of the anti-slip end 10. As the molybdenum wire locking end 8 is manually released, the molybdenum wire locking end 8 can lock the molybdenum wire through the cooperation of the locking shaft 9 and the return spring 901. Compared with the traditional locking method, the convenience of operation is further improved. In this embodiment of the invention, specifically, the spool shaft 6 and the spool body 1 are always kept coaxial.

[0021] Example 2: Based on Example 1, specifically, a wire cutting machine tool with a protective device includes a wire drum body 1 and a positioning base 2. The wire drum body 1 is rotatably connected to the middle of the top surface of the positioning base 2. A wire drum shaft 6 is fixedly installed inside the wire drum body 1. A locking component is provided between the wire drum shaft 6 and the wire drum body 1 to fix the wire drum body 1 and the wire drum shaft 6 into a whole. In this embodiment of the invention, specifically, when in use, the wire drum body 1 is first assembled onto the cutting machine tool through the positioning base 2, and then the drive motor is connected to the wire drum shaft 6 through a coupling or track, which can drive the wire drum shaft 6 and the wire drum body 1 to rotate inside the positioning base 2 to perform wire feeding or unloading operations. In this embodiment of the invention, the aforementioned drive motor and the transmission components between the drive motor and the screw shaft 6 are all existing devices and will not be described in detail here. In this embodiment of the invention, specifically, the locking component includes an end sealing plate 7, there are two end sealing plates 7 and they are respectively fixed at both ends of the yarn drum body 1, and a plurality of support locking plates 11 adapted to the end sealing plates 7 are fixedly installed inside the yarn drum body 1. In this embodiment of the invention, specifically, a positioning shaft 601 is fixedly sleeved on the outer side of the spool shaft 6, and positioning ends 602 are fixedly installed at both ends of the positioning shaft 601. The end sealing plate 7 is provided with a matching insertion slot 702 on the side near the positioning ends 602. In this embodiment of the invention, specifically, by setting the spool shaft 6 and the positioning shaft 601, when assembling the spool body 1, one end sealing plate 7 can be fixed to the spool body 1 first, and then the spool shaft 6 can be inserted into the spool body 1, so that the positioning ends 602 fixedly installed at both ends of the positioning shaft 601 can be inserted into the corresponding insertion slots 702. Then, the other end sealing plate 7 can be fixedly installed to the other end of the spool body 1, thus completing the assembly between the spool body 1 and the spool shaft 6. Compared with the traditional integral spool body 1, the separate cooperation between the spool body 1 and the spool shaft 6 makes it easier to replace the spool shaft 6 when it is worn, saving maintenance costs while ensuring the operational stability of the spool body 1. In this embodiment of the invention, specifically, a molybdenum wire locking end 8 is installed at the end of the wire spool body 1. The molybdenum wire locking end 8 is used to lock the end of the molybdenum wire to be wired. In this embodiment of the invention, specifically, the end sealing plate 7 is provided with a plurality of locking bolts 701 inside, and both ends of the support locking plate 11 are provided with threaded through holes 111 that are adapted to the locking bolts 701. The locking bolts 701 are used to lock the end sealing plate 7, the support locking plate 11, and the wire drum body 1. In this embodiment of the invention, specifically, the locking bolt 701 is connected to the threaded through hole 111 by a thread. With the cooperation of the end sealing plate 7, the assembly and disassembly operations between the screw spool shaft 6 and the positioning shaft 601 and the screw spool body 1 can be completed. In this embodiment of the invention, specifically, the top surface of the positioning base 2 is provided with assembly slots 201 on both sides, and the assembly slots 201 are used to limit the assembly of both ends of the screw shaft 6. In this embodiment of the invention, specifically, a locking shaft 9 is installed at the end of the wire drum body 1. The locking shaft 9 passes through the wire drum body 1 and is slidably connected to it. The molybdenum wire locking end 8 is fixedly connected to the locking shaft 9. The end of the locking shaft 9 away from the molybdenum wire locking end 8 passes into the inside of the wire drum body 1. A return spring 901 is sleeved on the end of the locking shaft 9 located inside the wire drum body 1. In this embodiment of the invention, specifically, the end of the locking shaft 9 is fixedly sleeved with an anti-slip end 10, and the end of the anti-slip end 10 is in contact with the molybdenum wire locking end 8. In this embodiment of the invention, specifically, by setting the molybdenum wire locking end 8, when fixing the molybdenum wire, the molybdenum wire locking end 8 is first pulled outward, so that the locking shaft 9 slides outward inside the wire drum body 1, squeezing the return spring 901. Then, the end of the molybdenum wire to be locked is wrapped around the outside of the anti-slip end 10. As the molybdenum wire locking end 8 is manually released, the molybdenum wire locking end 8 can lock the molybdenum wire through the cooperation of the locking shaft 9 and the return spring 901. Compared with the traditional locking method, the convenience of operation is further improved. In this embodiment of the invention, specifically, the spool shaft 6 and the spool body 1 are always kept coaxial; In this embodiment of the invention, specifically, a counterweight ring frame 3 is fixedly installed at both ends of the wire drum body 1, and a plurality of counterweight bolts 301 are fixedly installed on the outer side of the counterweight ring frame 3. In this embodiment of the invention, specifically, the counterweight bolts 301 and the counterweight ring frame 3 are connected by threads. The counterweight bolts 301 are symmetrically distributed on the outside of the counterweight ring frame 3, and are used to adjust the balance state of the wire drum body 1 during operation to ensure the stability of subsequent wire feeding or unfeeding. In this embodiment of the invention, specifically, a protective component is provided between the wire drum body 1 and the positioning base 2, and the protective component is used to protect the wire drum body 1; In this embodiment of the invention, specifically, the protective component includes an arc-shaped protective shell 4, which is fixedly installed on the top surface of the positioning base 2. The installation position of the arc-shaped protective shell 4 is located at the bottom of the wire drum body 1 and a distance is left between it and the wire drum body 1. An internal protective frame 5 is slidably installed inside the arc-shaped protective shell 4, and a plurality of support springs 501 are fixedly installed between the end of the internal protective frame 5 and the inside of the arc-shaped protective shell 4. In this embodiment of the invention, specifically, the arc-shaped protective shell 4 is provided with fixing bolts inside, which are used to lock the arc-shaped protective shell 4 to the internal protective frame 5. In this embodiment of the invention, specifically, by setting up the protective components, during the operation, the inner protective frame 5 can be pulled outward to slide outward inside the arc-shaped protective shell 4 until the end of the inner protective frame 5 is located outside the running molybdenum wire, and the arc-shaped protective shell 4 and the inner protective frame 5 are locked together by fixing bolts to achieve operation protection and improve the operation safety of the equipment. In this embodiment of the invention, the fixing bolt is a conventional device and is not shown in the figure.

[0022] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0023] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A wire feed spool for a wire EDM machine with a protective device, comprising a spool body (1) and a positioning base (2), wherein the spool body (1) is rotatably connected to the center of the top surface of the positioning base (2), characterized in that: The inner part of the bobbin body (1) is fixedly installed with a bobbin shaft (6). A locking component is provided between the bobbin shaft (6) and the bobbin body (1) to fix the bobbin body (1) and the bobbin shaft (6) into a whole. The locking assembly includes two end sealing plates (7) which are fixed at both ends of the bobbin body (1). Multiple support locking plates (11) adapted to the end sealing plates (7) are fixedly installed inside the bobbin body (1). The outer side of the spool shaft (6) is fixedly sleeved with a positioning shaft (601), and both ends of the positioning shaft (601) are fixedly installed with positioning ends (602). The end sealing plate (7) is provided with a matching insertion slot (702) on the side near the positioning ends (602). The end of the spool body (1) is equipped with a molybdenum wire locking end (8), which is used to lock the end of the molybdenum wire to be wired.

2. The wire feed spool of a wire EDM machine tool with a protective device according to claim 1, characterized in that: The end sealing plate (7) is provided with multiple locking bolts (701) inside. Both ends of the support locking plate (11) are provided with threaded through holes (111) that are compatible with the locking bolts (701). The locking bolts (701) are used to lock the end sealing plate (7), the support locking plate (11), and the wire drum body (1).

3. The wire feed spool of a wire EDM machine tool with a protective device according to claim 1, characterized in that: The top surface of the positioning base (2) is provided with assembly slots (201) on both sides. The assembly slots (201) are used to assemble and limit the two ends of the screw shaft (6).

4. The wire feed spool of a wire EDM machine tool with a protective device according to claim 1, characterized in that: A locking shaft (9) is installed at the end of the wire drum body (1). The locking shaft (9) passes through the wire drum body (1) and is slidably connected to it. The molybdenum wire locking end (8) is fixedly connected to the locking shaft (9). The end of the locking shaft (9) away from the molybdenum wire locking end (8) is inserted into the inside of the wire drum body (1). A return spring (901) is sleeved on the end of the locking shaft (9) inside the wire drum body (1).

5. The wire feed spool of a wire EDM machine tool with a protective device according to claim 4, characterized in that: The end of the locking shaft (9) is fixedly sleeved with an anti-slip end (10), and the end of the anti-slip end (10) is in contact with the molybdenum wire locking end (8).

6. The wire feed spool of a wire EDM machine tool with a protective device according to claim 1, characterized in that: The spool shaft (6) and the spool body (1) are always coaxial.

7. The wire feed spool of a wire EDM machine tool with a protective device according to claim 1, characterized in that: Both ends of the spool body (1) are fixedly installed with counterweight ring frames (3), and several counterweight bolts (301) are fixedly installed on the outer side of the counterweight ring frames (3).

8. The wire feed spool of a wire EDM machine tool with a protective device according to claim 1, characterized in that: A protective component is provided between the wire drum body (1) and the positioning base (2) to protect the wire drum body (1).

9. A wire feed spool with a protective device for a wire EDM machine according to claim 8, characterized in that: The protective assembly includes an arc-shaped protective shell (4), which is fixedly installed on the top surface of the positioning base (2). The arc-shaped protective shell (4) is installed at the bottom of the bobbin body (1) and a distance is left between it and the bobbin body (1). An internal protective frame (5) is slidably installed inside the arc-shaped protective shell (4). Multiple support springs (501) are fixedly installed between the end of the internal protective frame (5) and the inside of the arc-shaped protective shell (4).

10. A wire feed spool with a protective device for a wire EDM machine according to claim 9, characterized in that: The arc-shaped protective shell (4) is provided with fixing bolts inside, which are used to lock the arc-shaped protective shell (4) and the internal protective frame (5).

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