A wire threading device for automatic wire threading cutting

Abstract

The embodiment of the application provides a kind of automatic threading wire cutting's wire clamping device, including clamping piece, pressing mechanism and separation mechanism;Clamping piece is installed in the outer side wall of winding drum and has with the outer side wall of winding drum closely pressed and is pressed state and is separated a distance from the outer side wall of winding drum separation state;Pressing mechanism is used to apply the force of making clamping piece close to the outer side wall of winding drum, separation mechanism is used to apply the force of making clamping piece away from the outer side wall of winding drum, clamping piece can be automatically switched between pressed state and separation state under the action of pressing mechanism and separation mechanism, to avoid the collision or extrusion of threading device and clamping piece, reduce the wear and tear of threading device and clamping piece;At the same time, the outer side wall of winding drum is only provided with clamping piece this one component, can effectively reduce the eccentricity of automatic wire clamping device.

Description

Technical Field

[0001] This utility model relates to the field of electrode wire cutting equipment, specifically to an automatic wire-threading and cutting device for wire clamping. Background Technology

[0002] Chinese invention patent CN119216689B, entitled "A Dual-Wire EDM Machine and Its Usage Method," discloses "a dual-wire EDM machine, characterized by comprising: a frame, a first wire source device, a second wire source device, a tensioning device, a wire changing and feeding device, a wire threading device, a wire clamping device, and a first wire conveying device." The wire clamping device includes a pressing mechanism, a first clamping plate, and a second clamping plate. The pressing mechanism and the second clamping plate are mounted on a wire winding drum, the first clamping plate is mounted on the pressing mechanism, and the second clamping plate is positioned between the wire winding drum and the first clamping plate. The pressing mechanism applies a force to the first clamping plate towards the second clamping plate, causing them to be pressed together. In actual use, the first clamping plate needs to be opened by the wire threading device to separate it from the second clamping plate. Over time, this can easily cause wear to the wire threading device (especially the wire threading tube), the first clamping plate, and the second clamping plate, affecting the wire feeding and clamping effects. Utility Model Content

[0003] In view of this, the present invention provides an automatic wire-threading and cutting wire clamping device to solve the technical problem that existing wire clamping devices are prone to wear and tear on the wire threading device and clamping plates during long-term use.

[0004] This utility model provides an automatic wire-threading and cutting wire clamping device, comprising:

[0005] The clamp is installed on the outer wall of the winding cylinder and can reciprocate in a direction that is close to or away from the outer wall of the winding cylinder, so that the clamp has a pressed state that is tightly pressed against the outer wall of the winding cylinder and a separated state that is separated from the outer wall of the winding cylinder by a certain distance.

[0006] A pressing mechanism is used to apply a force to the clamping piece to bring it closer to the outer wall of the winding bobbin;

[0007] A separation mechanism is used to apply a force to the clamping piece, moving it away from the outer wall of the winding bobbin;

[0008] The clamping piece can automatically switch between the pressing state and the separating state under the action of the pressing mechanism and the separating mechanism.

[0009] Optionally, a connector is movably inserted through the side wall of the winding spool, the clamp is installed at the outer end of the connector, and a force-bearing member is connected to the inner end of the connector. The forces of the pressing mechanism and the separating mechanism are both applied to the force-bearing member.

[0010] Optionally, the pressing mechanism includes a guide, a moving part, a limiting part, and a power element;

[0011] The guide is installed on the inner side of the winding spool and has a guide hole for the moving part to pass through. The moving part is slidably inserted into the guide hole. The limiting part is installed at one end of the moving part, and the other end of the moving part is connected to the force-receiving part. The two ends of the power element are respectively connected to the guide and the limiting part.

[0012] Optionally, the power element is a spring or a magnetic assembly.

[0013] Optionally, the separation mechanism includes a pushing member and a driving assembly;

[0014] The driving component is connected to the pushing member and is used to drive the pushing member to reciprocate in a direction toward or away from the inner wall of the winding drum. The pushing member can at least move to abut against the force-bearing member and push the force-bearing member to move toward the inner wall of the winding drum.

[0015] Optionally, the drive assembly includes a mounting base, a motor, a lead screw, and an actuator;

[0016] The motor is mounted on the mounting base, the output shaft of the motor is connected to the lead screw, the actuating element is threadedly engaged with the lead screw, and the pushing element is mounted on the actuating element.

[0017] Optionally, the drive assembly further includes a guide rod, which is mounted on the mounting base and the length direction of the guide rod is consistent with the length direction of the lead screw, and the actuating element is slidably sleeved on the guide rod.

[0018] The present invention has the following beneficial effects:

[0019] 1. The clamping plate is automatically switched between the pressing state and the separating state by the pressing mechanism and the separating mechanism, which can avoid collision or squeezing between the wire threading device and the clamping plate, reduce the wear of the wire threading device and the clamping plate, and ensure the wire feeding effect and the wire clamping effect.

[0020] 2. The outer wall of the winding drum can be equipped with only one component, the clamping plate, which effectively reduces the eccentricity of the automatic wire clamping device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the pressing mechanism in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the separation mechanism in an embodiment of the present utility model;

[0025] Figure 4 This is a front view of the embodiment of the present invention in its separated state;

[0026] The numbers in the image represent:

[0027] 1. Clamping plate; 2. Pressing mechanism; 21. Guide component; 22. Moving component; 23. Limiting component; 24. Power component; 3. Separation mechanism; 31. Pushing component; 32. Drive assembly; 321. Mounting base; 322. Motor; 323. Lead screw; 324. Actuating component; 325. Guide rod; 4. Wire winding drum; 5. Wire threading device; 6. Electrode wire; 7. Connecting component; 8. Force-bearing component. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 As shown, an embodiment of this utility model provides an automatic wire cutting clamping device, including a clamping plate 1, a pressing mechanism 2, and a separating mechanism 3.

[0030] The clamp 1 is installed on the outer wall of the winding cylinder 4 and can reciprocate in the direction of approaching or moving away from the outer wall of the winding cylinder 4, so that the clamp 1 has a pressed state that is tightly pressed against the outer wall of the winding cylinder 4 and a separated state that is separated from the outer wall of the winding cylinder 4 by a certain distance.

[0031] The pressing mechanism 2 is used to apply a force to the clamping piece 1 to bring it closer to the outer wall of the winding drum 4, while the separating mechanism 3 is used to apply a force to the clamping piece 1 to move it away from the outer wall of the winding drum 4, so that the clamping piece 1 can automatically switch between the pressing state and the separating state under the action of the pressing mechanism 2 and the separating mechanism 3.

[0032] When clamp 1 switches to the separated state, the wire threading device 5 located on one side of the winding drum 4 can deliver the electrode wire 6 between clamp 1 and winding drum 4; after the electrode wire 6 is delivered into place, clamp 1 can automatically switch to the pressing state to clamp and fix the electrode wire 6. Throughout the entire process, the wire threading device 5 will not collide or squeeze with clamp 1, effectively reducing the wear of wire threading device 5 and clamp 1, and ensuring the wire feeding effect of wire threading device 5 and the wire clamping effect of clamping device.

[0033] Furthermore, in this embodiment of the invention, a connector 7 is movably inserted into the side wall of the winding drum 4. A clamping piece 1 is installed at the outer end of the connector 7, and a force-bearing member 8 is connected to the inner end of the connector 7. The forces of the pressing mechanism 2 and the separating mechanism 3 are both applied to the force-bearing member 8, so that the clamping piece 1 on the outer side is moved by the force-bearing member 8 located on the inner side of the winding drum 4. In this way, when designing the structural layout, only the clamping piece 1 can be retained on the outer side wall of the winding drum 4, thereby minimizing the eccentricity of the wire clamping device.

[0034] As an optional implementation method, such as Figure 2 As shown, the pressing mechanism 2 in this embodiment of the present invention includes a guide 21, a moving part 22, a limiting part 23 and a power element 24.

[0035] The guide member 21 is installed on the inner side of the winding spool 4 and has a guide hole for the moving member 22 to pass through. The moving member 22 is slidably inserted into the guide hole. The limiting member 23 is installed at one end of the moving member 22, and the other end of the moving member 22 is connected to the force-bearing member 8. The two ends of the power element 24 are respectively connected to the guide member 21 and the limiting member 23.

[0036] The force applied by the power element 24 to the limiting member 23 can be transmitted to the force receiving member 8 through the moving member 22, and a force is applied to the force receiving member 8 to move it away from the inner wall of the winding drum 4, thereby driving the clamping piece 1 to move towards the outer wall of the winding drum 4, so that the clamping piece 1 switches to the pressing state.

[0037] For reference, the power element 24 can be either a spring or a magnetic assembly. When the power element 24 is a spring, its two ends are connected to the guide 21 and the limiting member 23, respectively. When the power element 24 is a magnetic assembly, the magnetic assembly includes two magnetic blocks that attract each other, and the two magnetic blocks are respectively mounted on the guide 21 and the limiting member 23.

[0038] As an optional implementation method, such as Figure 3 As shown, the separation mechanism 3 in this embodiment of the present invention includes a pushing member 31 and a driving component 32.

[0039] The drive assembly 32 is connected to the pusher 31 for driving the pusher 31 to reciprocate in a direction toward or away from the inner wall of the winding drum 4. Figure 1 As shown, the pusher 31, driven by the drive assembly 32, should be able to move at least to abut against the force-bearing member 8 and push the force-bearing member 8 toward the inner wall of the winding drum 4, thereby causing the clamping piece 1 to move away from the outer wall of the winding drum 4, so that the clamping piece 1 switches to the separated state.

[0040] For reference, the drive assembly 32 in this embodiment of the present invention includes a mounting base 321, a motor 322, a lead screw 323, and an actuating member 324. The motor 322 is mounted on the mounting base 321, and the output shaft of the motor 322 is connected to the lead screw 323 via a transmission connection. The actuating member 324 is threadedly engaged with the lead screw 323, and a pushing member 31 is mounted on the actuating member 324. When the motor 322 drives the lead screw 323 to rotate, the actuating member 324 can reciprocate along the lead screw 323 under the transmission action of the thread, thereby driving the pushing member 31 to reciprocate.

[0041] Furthermore, the drive assembly 32 also includes a guide rod 325, which is mounted on the mounting base 321. The length direction of the guide rod 325 is consistent with the length direction of the lead screw 323. The actuating element 324 is slidably sleeved on the guide rod 325, which can prevent the actuating element 324 from rotating with the lead screw 323 and effectively improve the stability of the movement of the actuating element 324.

[0042] It is understandable that the drive assembly 32 can also adopt common reciprocating motion structures such as crank-slider mechanism, cam mechanism, gear and rack mechanism, connecting rod mechanism, hydraulic / pneumatic cylinder, etc., as long as it can drive the pusher 31 to reciprocate in the direction of approaching or moving away from the inner wall of the winding drum 4. Examples will not be given here.

[0043] Working process: The drive assembly 32 drives the pusher 31 to move towards the inner wall of the winding drum 4 until it comes into contact with the force-receiving member 8, and pushes the force-receiving member 8 to move towards the inner wall of the winding drum 4, thereby driving the clamp 1 to move away from the outer wall of the winding drum 4, so that the clamp 1 switches to the separated state.

[0044] like Figure 4 As shown, after the clamp 1 is switched to the separated state, the wire threading device 5 transports the electrode wire 6 between the clamp 1 and the winding drum 4.

[0045] After the electrode wire 6 is delivered to the position, the drive assembly 32 drives the pusher 31 to move in the opposite direction, causing the pusher 31 to separate from the force-bearing member 8 and no longer apply force to the force-bearing member 8. At this time, the clamping plate 1 can automatically switch to the pressing state under the action of the pressing mechanism 2 to clamp and fix the electrode wire 6.

[0046] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this utility model. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic wire-threading and cutting device, characterized in that, include: The clamp is installed on the outer wall of the winding cylinder and can reciprocate in a direction that is close to or away from the outer wall of the winding cylinder, so that the clamp has a pressed state that is tightly pressed against the outer wall of the winding cylinder and a separated state that is separated from the outer wall of the winding cylinder by a certain distance. A pressing mechanism is used to apply a force to the clamping piece to bring it closer to the outer wall of the winding bobbin; A separation mechanism is used to apply a force to the clamping piece, moving it away from the outer wall of the winding bobbin; The clamping piece can automatically switch between the pressing state and the separating state under the action of the pressing mechanism and the separating mechanism.

2. The wire clamping device for automatic wire cutting according to claim 1, characterized in that: A connector is movably inserted through the side wall of the winding spool. The clamp is installed at the outer end of the connector. A force-bearing component is connected to the inner end of the connector. The forces of the pressing mechanism and the separating mechanism are both applied to the force-bearing component.

3. The wire clamping device for automatic wire cutting according to claim 2, characterized in that: The pressing mechanism includes a guide, a moving part, a limiting part, and a power element; The guide is installed on the inner side of the winding spool and has a guide hole for the moving part to pass through. The moving part is slidably inserted into the guide hole. The limiting part is installed at one end of the moving part, and the other end of the moving part is connected to the force-receiving part. The two ends of the power element are respectively connected to the guide and the limiting part.

4. The wire clamping device for automatic wire cutting according to claim 3, characterized in that: The power element is a spring or a magnetic component.

5. The wire clamping device for automatic wire cutting according to claim 2, characterized in that: The separation mechanism includes a pusher and a drive assembly; The driving component is connected to the pushing member and is used to drive the pushing member to reciprocate in a direction toward or away from the inner wall of the winding drum. The pushing member can at least move to abut against the force-bearing member and push the force-bearing member to move toward the inner wall of the winding drum.

6. The wire clamping device for automatic wire cutting according to claim 5, characterized in that: The drive assembly includes a mounting base, a motor, a lead screw, and an actuator; The motor is mounted on the mounting base, the output shaft of the motor is connected to the lead screw, the actuating element is threadedly engaged with the lead screw, and the pushing element is mounted on the actuating element.

7. The wire clamping device for automatic wire cutting according to claim 6, characterized in that: The drive assembly further includes a guide rod, which is mounted on the mounting base and the length direction of the guide rod is consistent with the length direction of the lead screw. The actuating element is slidably sleeved on the guide rod.

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