A wire threading device
By using the first tube in conjunction with the guide wheel seat, only one drive mechanism is needed to move the second tube, thereby moving the electrode wire and discharging the cutting fluid. This simplifies the structure of the wire threading device and solves the problem of requiring two drive mechanisms in the prior art.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POSITTEC WEDM EQUIP CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-03
AI Technical Summary
Existing wire threading devices require two drive mechanisms to move the wire electrode, resulting in a complex structure.
By engaging the first tube with the guide wheel seat and fitting the first tube onto the second tube, a single drive mechanism is used to move the second tube, enabling the electrode wire to move from the guide wheel seat to the position where it engages with the winding drum. Cutting fluid and fine waste are then discharged through the drainage gap between the first and second tubes.
The structure of the wire threading device has been simplified, requiring only one drive mechanism to move the electrode wire and effectively discharge cutting fluid and waste residue, thus solving the problem of complex structure.
Smart Images
Figure CN224444793U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of wire cutting equipment, specifically a wire threading device. Background Technology
[0002] The Chinese utility model specification, titled "A Wire-Threading Device for a Movable Tube Assembly," describes a device that "comprises a length-extendable movable tube assembly, a multi-stage drive mechanism for driving the movable tube assembly, and a tube assembly mounting base fixed on a machine tool. The movable tube assembly has a hollow structure, with a center for threading a wire electrode. The movable tube assembly is movably installed along the length of the tube assembly mounting base. The multi-stage drive mechanism includes a primary drive mechanism that can drive the movable tube assembly to extend and retract to one side, and a secondary drive mechanism that can drive the movable tube assembly to extend and retract to the other side. Both the primary and secondary drive mechanisms are fixed on the tube assembly mounting base." This design requires two drive mechanisms—a primary and a secondary drive mechanism—to engage one end of the movable tube assembly with the wire drum and the other end with the connecting tube. This structure necessitates two drive mechanisms to move the wire electrode to the position engaging with the wire drum, resulting in a complex wire-threading device structure. Utility Model Content
[0003] The purpose of this utility model is to provide a wire threading device, which uses a first tube to cooperate with a guide wheel seat and the first tube to be sleeved on a second tube. Only one driving mechanism is needed to move the second tube to move the electrode wire from the guide wheel seat to the position where it cooperates with the wire winding drum. This solves the problem that the existing technology requires two driving mechanisms to move the wire electrode to the position where it cooperates with the wire drum, resulting in a complex wire threading device structure.
[0004] The technical solution of this utility model is: a wire threading device, which is installed on the lower wire frame of a wire cutting machine.
[0005] The threading device includes: a first tube, a second tube, and a drive mechanism.
[0006] The first tube is sleeved on the second tube, one of the first tube and the second tube is located at a position that mates with the guide wheel seat, and the other is installed on the drive mechanism, which is installed on the lower wire frame.
[0007] The first tube and the second tube are provided with electrode wire channels, allowing the electrode wires to move within the electrode wire channels.
[0008] The inner diameter of the first tube is larger than the outer diameter of the second tube, creating a drainage gap between the first and second tubes.
[0009] The drive mechanism is used to drive one of the first tube and the second tube to reciprocate along its axial direction.
[0010] In a further embodiment, the first tube mates with the guide wheel seat, and the second tube is mounted on the drive mechanism.
[0011] In a further embodiment, the first tube is detachably mounted on the lower line rack.
[0012] In a further embodiment, the wire threading device includes: a third tube, which is mounted on a guide wheel seat, and a first tube sleeved on the third tube, wherein the third tube is provided with an electrode wire channel.
[0013] When the drive mechanism moves the second tube to the guide wheel seat in the direction of the guide wheel seat to a predetermined position, the second tube cooperates with the third tube, so that the electrode wire moves from the guide wheel seat through the electrode wire channel of the third tube to the electrode wire channel of the second tube.
[0014] In a further embodiment, the inner diameter of the first tube is larger than the outer diameter of the third tube, so that a drainage gap is formed between the first tube and the third tube.
[0015] In a further embodiment, the threading device further includes a guide member disposed at a position of the second tube away from the first tube, the guide member being sleeved on the second tube, the guide member being able to reduce the cantilever length of the moving portion of the second tube away from the first tube.
[0016] In another embodiment, the second tube cooperates with the guide wheel seat, and the first tube is mounted on the drive mechanism.
[0017] In a further embodiment, the second tube is detachably mounted on the lower line rack.
[0018] In a further embodiment, the second tube is detachably mounted on the guide wheel seat.
[0019] In a further embodiment, the threading device further includes a guide member disposed at a position of the first tube away from the second tube, the guide member being sleeved on the first tube, the guide member being able to reduce the cantilever length of the part of the moving first tube away from the second tube.
[0020] The beneficial effects of this utility model are as follows: This application uses a first tube to cooperate with a guide wheel seat and to sleeve the first tube on the second tube. During the wire threading process, only one drive mechanism is needed to move the second tube to move the electrode wire from the guide wheel seat through the electrode wire channel to the position where it cooperates with the wire winding drum. During the wire cutting process, the cutting fluid and fine waste brought into the first tube by the electrode wire processing can be discharged through the drainage gap between the first tube and the second tube. This solves the problem that the prior art requires two drive mechanisms to move the wire electrode to the position where it cooperates with the wire drum, resulting in a complex wire threading device structure. Attached Figure Description
[0021] Figure 1 This is an isometric structural diagram of the guide wheel seat, wire threading device, and wire winding drum of this utility model.
[0022] Figure 2 This is a cross-sectional structural diagram of the guide wheel seat, wire threading device and wire winding drum of this utility model.
[0023] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A.
[0024] Figure 4 This is a schematic diagram of the first and second tubes mating structure according to another embodiment of this utility model.
[0025] The attached figures are labeled as follows: 1. Guide wheel seat, 2. Winding drum, 3. Lower wire frame, 4. Drive mechanism, 5. First tube, 6. Second tube, 7. Third tube, 8. Guide component. Detailed Implementation
[0026] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0027] This application discloses a wire threading device, in which the sensor and motor are connected to the control device such as the PLC of the wire cutting machine. The control device controls the wire threading device to cooperate with the various devices of the wire cutting machine. The device cooperates with the guide wheel seat through the first tube and the first tube is sleeved on the second tube. Only one drive mechanism is needed to move the second tube to move the electrode wire from the guide wheel seat to the position that cooperates with the wire winding drum. This solves the problem that the prior art requires two drive mechanisms to move the wire electrode to the position that cooperates with the wire drum, resulting in a complex wire threading device structure.
[0028] like Figure 1 and 2 The wire threading device shown is installed on the lower wire frame of the wire EDM machine, such as... Figure 1 and 2 The wire threading device shown is located between the wire winding drum and the guide wheel seat. In other embodiments, the wire threading device can also be located between the copper wire conveying device and the guide wheel seat. The copper wire conveying device can convey the copper wire out of the wire cutting machine.
[0029] like Figure 1 and 2 The wire threading device shown is installed on the lower wire frame 3 of the wire cutting machine, as follows: Figure 1 and 2The wire threading device shown is located between the wire winding spool 2 and the guide wheel seat 1. In other embodiments, the wire threading device can also be located between the copper wire conveying device and the guide wheel seat 1. The copper wire conveying device can convey the copper wire out of the wire cutting machine. The guide wheel seat 1 is provided with an electrode component. The electrode is connected to the electrical control system of the wire cutting machine, and the electrode component is connected to the electrode wire in the electrode wire channel of the guide wheel seat 1, so that the electrical control system can energize the electrode wire through the electrode component.
[0030] like Figure 1 and 2 The threading device shown includes: a first tube 5, a second tube 6, and a drive mechanism 4.
[0031] The first tube 5 is fitted onto the second tube 6. One of the first tube 5 and the second tube 6 is positioned to cooperate with the guide wheel seat 1, and the other is installed on the drive mechanism 4. The drive mechanism 4 is installed on the lower wire frame 3.
[0032] The first tube 5 and the second tube 6 are provided with electrode wire channels, which allow the electrode wires to move within the electrode wire channels. The electrode wires can be molybdenum wires or copper wires.
[0033] like Figure 3 and 4 The inner diameter of the first tube 5 is larger than the outer diameter of the second tube 6, so that a drainage gap is formed between the first tube 5 and the second tube 6.
[0034] The drive mechanism 4 is used to drive one of the first tube 5 and the second tube 6 to reciprocate along its axial direction, wherein the drive mechanism 4 includes a lead screw mechanism or a gear and rack mechanism. Example 1:
[0035] like Figure 1-3 The first tube 5 shown is engaged with the guide wheel seat 1, and the second tube 6 is installed on the drive mechanism 4. When the third tube 7 is not provided, the first tube 5 can be directly connected to the side of the guide wheel seat 1, so that the electrode wire channel of the first tube 5 and the guide wheel seat 1 are connected.
[0036] like Figure 1-3 The first tube 5 shown can be detachably mounted to the lower frame 3 via a mounting block and screws.
[0037] like Figure 3 The wire threading device shown includes: a third tube 7, which is installed on the guide wheel seat 1, a first tube 5 sleeved on the third tube 7, and the third tube 7 is provided with an electrode wire channel.
[0038] When the drive mechanism 4 drives the second tube 6 to move in the direction of the guide wheel seat 1 to a predetermined position, the second tube 6 cooperates with the third tube 7, so that the electrode wire moves from the guide wheel seat 1 through the electrode wire channel of the third tube 7 into the electrode wire channel of the second tube 6.
[0039] like Figure 3The inner diameter of the first tube 5 is larger than the outer diameter of the third tube 7, thus forming a drainage gap between the first tube 5 and the third tube 7.
[0040] like Figure 1 and 2 The threading device shown also includes: a guide 8, which is disposed in the second tube 6 at a position away from the first tube 5, and the guide 8 is sleeved on the second tube 6, such as... Figure 2 The guide 8 shown is a guide tube that is detachably installed on the lower wire frame 3 by means of a mounting block and screws, and the guide tube is sleeved on the second tube 6.
[0041] Instructions for use: When it is necessary to move the electrode wire from the guide wheel seat 1 to the position that matches the winding drum 2 or the copper wire conveying device, drive the second tube 6 to move closer to the guide wheel seat 1 to the position that matches the third tube 7. Then move the electrode wire from the guide wheel seat 1 through the electrode wire channel of the third tube 7 to the electrode wire channel of the second tube 6.
[0042] When the electrode wire moves to the predetermined position inside the second tube 6, the drive mechanism 4 drives the second tube 6 to move away from the guide wheel seat 1 to a position that cooperates with the winding drum 2 or the copper wire conveying device. Then, the electrode wire moves to a position that cooperates with the winding drum 2 or the copper wire conveying device.
[0043] When wire cutting is performed, the electrode wire moves toward the wire winding spool 2 or the copper wire conveying device, bringing the cutting fluid into the electrode wire channels of the first tube 5, the second tube 6 and the third tube 7. At this time, the cutting fluid can be discharged through the drainage gap. Example 2:
[0044] like Figure 4 The second tube 6 shown cooperates with the guide wheel seat 1. The first tube 5 is installed on the drive mechanism 4. The second tube 6 can be directly connected to the side of the guide wheel seat 1, so that the electrode wire channel of the second tube 6 and the guide wheel seat 1 are connected.
[0045] In this embodiment, the second tube 6 can be detachably mounted to the lower frame 3 via a mounting block and screws.
[0046] Alternatively, the second tube 6 can be detachably mounted to the guide wheel seat 1 via a mounting block and screws.
[0047] In this embodiment, the threading device further includes a guide 8, which is disposed at a position of the first tube 5 away from the second tube 6, and is sleeved on the first tube 5.
[0048] Instructions for use: When it is necessary to move the electrode wire from the guide wheel seat 1 to the position where it engages with the winding drum 2 or the copper wire conveying device, the drive mechanism 4 drives the first tube 5 to move towards the guide wheel seat 1 to the position where it engages with the guide wheel seat 1, and then the electrode wire moves from the electrode wire channel of the guide wheel seat 1 to the electrode wire channel of the second tube 6.
[0049] When the electrode wire moves to a predetermined position inside the first tube 5, the drive mechanism 4 drives the first tube 5 to move away from the guide wheel seat 1 to a position that cooperates with the winding drum 2 or the copper wire conveying device. Then, the electrode wire moves to a position that cooperates with the winding drum 2 or the copper wire conveying device.
[0050] When wire cutting is performed, the electrode wire moves toward the winding drum 2 or the copper wire conveying device, bringing the cutting fluid into the electrode wire channel of the first tube 5 and the second tube 6. At this time, the cutting fluid can be discharged through the drainage gap.
[0051] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.
Claims
1. A wire threading device, which is installed on the lower wire frame of a wire cutting machine; characterized in that The threading device includes: a first tube, a second tube, and a drive mechanism; The first tube is sleeved on the second tube, one of the first tube and the second tube is set at a position that mates with the guide wheel seat, and the other is installed on the drive mechanism, which is installed on the lower wire frame; The first tube and the second tube are provided with electrode wire channels, so that the electrode wires can move within the electrode wire channels; The inner diameter of the first tube is larger than the outer diameter of the second tube, so that a drainage gap is formed between the first tube and the second tube; The drive mechanism is used to drive one of the first tube and the second tube to reciprocate along its axial direction.
2. The threader of claim 1, wherein, The first tube mates with the guide wheel seat, and the second tube is mounted on the drive mechanism.
3. The filament threading device of claim 2, wherein, The first tube is detachably mounted on the lower frame.
4. The threading device according to claim 2, characterized in that, include: The third tube is installed on the guide wheel seat, the first tube is sleeved on the third tube, and the third tube is provided with an electrode wire channel; When the drive mechanism moves the second tube to the guide wheel seat in the direction of the guide wheel seat to a predetermined position, the second tube cooperates with the third tube, so that the electrode wire moves from the guide wheel seat through the electrode wire channel of the third tube to the electrode wire channel of the second tube.
5. The filament threading device of claim 4, wherein, The inner diameter of the first tube is larger than the outer diameter of the third tube, creating a drainage gap between the first and third tubes.
6. A threading device according to any one of claims 2-5, characterized in that Also includes: A guide member is provided at a position on the second tube away from the first tube, and the guide member is sleeved on the second tube.
7. The filament threading device of claim 1, wherein, The second tube mates with the guide wheel seat, and the first tube is mounted on the drive mechanism.
8. The filament threading device of claim 7, wherein, The second tube is detachably mounted on the lower line frame.
9. The filament threading device of claim 7, wherein, The second tube is detachably mounted on the guide wheel seat.
10. A thread passing device according to any one of claims 7-9, characterized in that Also includes: A guide member is disposed in the first tube at a position away from the second tube, and the guide member is sleeved on the first tube.