Lower eye mold guide wire mechanism with opening and closing switching structure

Abstract

The utility model provides a lower eye mould godet mechanism with open and close switching structure, it includes lower godet seat frame, lower cooling water nozzle, godet positioning seat body, lower godet clamp arm and switching drive cylinder, the lower godet clamp arm lower section of this lower eye mould godet mechanism extends along lower cooling water nozzle axial direction and is installed through pivot, the middle section extends to the upper side of lower cooling water nozzle along the inboard side of radial direction bending, the upper section bends along the axial direction to the upper side and inboard side sets up godet recess, when closing, godet recesses form godet channel by mutual buckling, compact structure and can effectively realize the function of guiding, at the same time, through switching drive cylinder, lower godet clamp arm is driven to unfold or close, when closing, the process of cutting wire entering lower cooling water nozzle is guided by forming godet channel, guarantees cutting wire to enter accurately, avoids the interference of cutting wire operation when unfolding, guarantees the smoothness and stability of cutting wire operation.

Description

Technical Field

[0001] This utility model relates to wire electrical discharge cutting equipment, and more particularly to a lower eyepiece guide wire mechanism with an opening and closing switching structure. Background Technology

[0002] Patent document CN220921171U discloses an automatic wire threading and guiding mechanism, which includes an upper wire threading mechanism, a lower wire threading mechanism, and a lifting drive mechanism. The lifting drive mechanism can drive the upper wire threading mechanism and / or the lower wire threading mechanism to rise and fall to achieve docking or separation between the two. A guide tube capable of penetrating a small-diameter hole in the workpiece is provided between the upper and lower wire threading mechanisms. By setting a guide tube capable of penetrating a small-diameter hole in the workpiece, docking between the upper and lower wire threading mechanisms is achieved, thereby realizing automatic wire threading. However, the guide tube of the above-mentioned automatic wire threading and guiding mechanism is a fixed structure. The process of the cutting wire entering the guide tube requires high control precision. Furthermore, when the wire threading is completed and the cutting state is entered, the guide tube can easily interfere with the moving cutting wire, affecting the cutting accuracy. Therefore, it is necessary to optimize its structure to overcome the above-mentioned defects. Utility Model Content

[0003] The purpose of this invention is to provide a lower eyelid guide wire mechanism with an opening and closing switching structure.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A lower eyelid guide wire mechanism with an opening and closing switching structure, comprising:

[0006] The lower wire guide holder is installed in the lower wire guide arm of the cutting equipment and has an assembly space inside.

[0007] The lower cooling water nozzle is installed in the lower wire guide bracket, and the cutting wire can pass through the lower cooling water nozzle;

[0008] Its characteristic is that it further includes:

[0009] The guide wire positioning seat corresponds to the position of the lower cooling water nozzle and has an assembly space inside.

[0010] The lower guide wire clamp arm is provided in pairs. Each lower guide wire clamp arm is installed in the guide wire positioning seat through a deflection structure. It can be unfolded or closed in the guide wire positioning seat. When closed, a guide wire channel that cooperates with the lower cooling water nozzle is formed between the lower guide wire clamp arms.

[0011] A switching drive cylinder is installed in the lower wire guide holder and cooperates with the lower wire guide clamp arm. The switching drive cylinder drives the lower wire guide clamp arm to open or close. In the closed state, the wire guide channel guides the cutting wire into the lower cooling water nozzle. In the open state, the lower wire guide clamp arm avoids interfering with the operation of the cutting wire.

[0012] In one embodiment of this utility model, each lower guide wire clamp arm is located outside the lower cooling water nozzle. In the closed state, its lower section extends along the axial direction of the lower cooling water nozzle and is installed in the guide wire positioning seat through a rotating shaft. Its middle section bends inward along the radial direction of the lower cooling water nozzle and extends above the lower cooling water nozzle. Its upper section bends upward along the axial direction of the lower cooling water nozzle. At the same time, each guide wire clamp arm has a guide wire groove extending along the axial direction of the lower cooling water nozzle on its inner side of the upper section. In the closed state, the guide wire grooves interlock to form a guide wire channel, allowing the cutting wire to enter the lower cooling water nozzle through the guide wire channel.

[0013] In one embodiment of this utility model, the guide wire positioning seat has an inner support plate and an outer support plate, with a gap between the inner support plate and the outer support plate. Its bottom is engaged with the cylinder body of the switching drive cylinder, and its top is engaged with a limiting top beam. The lower sections of each lower guide wire clamp arm are arranged on both sides of the limiting top beam and are respectively installed between the inner support plate and the outer support plate through a rotating shaft.

[0014] In one embodiment of this utility model, the piston rod of the switching drive cylinder is located between the cylinder body and the limiting top beam, and the limiting top beam limits the movement range of the piston rod.

[0015] In one embodiment of this utility model, the piston rod of the switching cylinder is provided with a transition end post at its end. The two ends of the transition end post extend to both sides of the limiting top beam. Each lower section of the lower guide wire clamp arm is provided with a deflection protrusion. The deflection protrusion protrudes into the inner side of the lower section of the lower guide wire clamp arm, and its inner edge is provided with a mating notch. The two ends of the transition end post abut against the mating notch through a rotating shaft. When the piston rod extends or retracts, the transition end post drives the lower guide wire clamp arm to deflect through the deflection protrusion, thereby realizing the unfolding or closing operation.

[0016] In one embodiment of this utility model, the cross-section of each guide wire groove is arc-shaped, and the cross-section of the guide wire channel is circular.

[0017] In one embodiment of this utility model, each guide wire groove is provided with an enlarged diameter cone at its top. The diameter of the enlarged diameter cone gradually expands, which can guide the cutting wire as it enters the guide channel.

[0018] The advantages of this utility model are:

[0019] The lower section of the lower guide wire clamping arm of this lower eyepiece guide wire mechanism extends axially along the lower cooling water nozzle and is mounted via a rotating shaft. The middle section bends radially inward and extends above the lower cooling water nozzle. The upper section bends axially upward and has a guide wire groove on its inner side. When closed, the guide wire grooves interlock to form a guide wire channel. The structure is compact and can effectively achieve the guiding function. At the same time, the lower guide wire clamping arm is opened or closed by switching the drive cylinder. When closed, the guide wire channel is formed to guide the cutting wire into the lower cooling water nozzle, ensuring that the cutting wire enters accurately. When opened, it avoids interfering with the operation of the cutting wire and ensures the smoothness and stability of the cutting wire operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the lower eyelid guide wire mechanism with an opening and closing switching structure proposed in this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the lower eyelid guide wire mechanism;

[0022] Figure 3 yes Figure 2 Exploded view;

[0023] Figure 4 This is a schematic diagram of the lower guidewire clamp arm. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] like Figures 1-4As shown, the lower wire guide mechanism with an opening and closing switching structure proposed in this utility model includes a lower wire guide seat 100, a lower cooling water nozzle 200, a wire guide positioning seat 300, a lower wire guide clamping arm 400, and a switching drive cylinder 500. The lower wire guide seat is installed in the lower wire guide arm of the cutting equipment and has an assembly space inside. The lower cooling water nozzle is installed in the lower wire guide seat, and the cutting wire can pass through the lower cooling water nozzle. The wire guide positioning seat corresponds to the lower cooling water nozzle and has an assembly space inside. The lower wire guide clamping arm is equipped with a pair of... Each lower guide wire clamp arm is installed in the guide wire positioning seat through a deflection structure. It can be unfolded or closed in the guide wire positioning seat. When closed, a guide wire channel is formed between the lower guide wire clamp arms to cooperate with the lower cooling water nozzle. The switching drive cylinder is installed in the lower guide wire seat frame and cooperates with the lower guide wire clamp arms. The switching drive cylinder drives the lower guide wire clamp arms to unfold or close. In the closed state, the guide wire channel guides the cutting wire to enter the lower cooling water nozzle. In the unfolded state, the lower guide wire clamp arms are prevented from interfering with the running process of the cutting wire.

[0026] In this embodiment, each lower guide wire clamp arm is located outside the lower cooling water nozzle. In the closed state, its lower section extends along the axial direction of the lower cooling water nozzle and is installed in the guide wire positioning seat through a rotating shaft. Its middle section bends inward along the radial direction of the lower cooling water nozzle and extends above the lower cooling water nozzle. Its upper section bends upward along the axial direction of the lower cooling water nozzle. At the same time, each guide wire clamp arm has a guide wire groove 401 extending along the axial direction of the lower cooling water nozzle on its inner side of the upper section. In the closed state, the guide wire grooves interlock to form a guide wire channel, allowing the cutting wire to enter the lower cooling water nozzle through the guide wire channel.

[0027] In this embodiment, the guide wire positioning seat has an inner support plate 310 and an outer support plate 320, with a gap between the inner and outer support plates. Its bottom is engaged with the cylinder body of the switching drive cylinder, and its top is engaged with the limiting top beam 330. The lower sections of each lower guide wire clamp arm are arranged on both sides of the limiting top beam and are respectively installed between the inner and outer support plates via a rotating shaft.

[0028] In this embodiment, the piston rod of the switching drive cylinder is located between the cylinder body and the limiting top beam, and the limiting top beam limits the movement range of the piston rod.

[0029] In this embodiment, the piston rod 510 of the switching cylinder is provided with a transition end post 520 at its end. Both ends of the transition end post extend toward the sides of the limiting top beam. Each lower section of the lower guide wire clamp arm is provided with a deflection protrusion 410. The deflection protrusion protrudes into the inner side of the lower section of the lower guide wire clamp arm, and its inner edge is provided with a mating recess 420. Both ends of the transition end post abut against the mating recess through a rotating shaft. When the piston rod extends or retracts, the transition end post drives the lower guide wire clamp arm to deflect through the deflection protrusion, thereby realizing the unfolding or closing operation.

[0030] In this embodiment, the cross-section of each guide wire groove is arc-shaped, and the cross-section of the guide wire channel is circular.

[0031] In this embodiment, each guide wire groove is provided with an enlarged diameter cone 402 at its top. The diameter of the enlarged diameter cone gradually expands, which can guide the cutting wire as it enters the guide channel.

[0032] In this embodiment, the cylinder body of the switching cylinder is mounted on the side of the lower guide wire support frame via an adapter plate.

[0033] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A lower eyelid guide wire mechanism with an opening and closing switching structure, comprising: The lower wire guide holder is installed in the lower wire guide arm of the cutting equipment and has an assembly space inside. The lower cooling water nozzle is installed in the lower wire guide bracket, and the cutting wire can pass through the lower cooling water nozzle; Its characteristic is that it further includes: The guide wire positioning seat corresponds to the position of the lower cooling water nozzle and has an assembly space inside. The lower guide wire clamp arm is provided in pairs. Each lower guide wire clamp arm is installed in the guide wire positioning seat through a deflection structure. It can be unfolded or closed in the guide wire positioning seat. When closed, a guide wire channel that cooperates with the lower cooling water nozzle is formed between the lower guide wire clamp arms. A switching drive cylinder is installed in the lower guide wire holder and cooperates with the lower guide wire clamping arm. The switching drive cylinder drives the lower guide wire clamping arm to open or close.

2. The lower eyelid guide wire mechanism with an opening and closing switching structure according to claim 1, characterized in that: Each lower guide wire clamp arm is located outside the lower cooling water nozzle. In the closed state, its lower section extends along the axial direction of the lower cooling water nozzle and is installed in the guide wire positioning seat through a rotating shaft. Its middle section bends inward along the radial direction of the lower cooling water nozzle and extends above the lower cooling water nozzle. Its upper section bends upward along the axial direction of the lower cooling water nozzle. At the same time, each guide wire clamp arm has a guide wire groove extending along the axial direction of the lower cooling water nozzle on its inner side of the upper section. In the closed state, the guide wire grooves interlock to form a guide wire channel.

3. The lower eyelid guide wire mechanism with an opening and closing switching structure according to claim 2, characterized in that: The guide wire positioning seat has an inner support plate and an outer support plate, with a gap between the inner and outer support plates. Its bottom is engaged with the cylinder body of the switching drive cylinder, and its top is engaged with the limiting top beam. The lower sections of each guide wire clamp arm are arranged on both sides of the limiting top beam and are respectively installed between the inner and outer support plates through a rotating shaft.

4. The lower eyelid guide wire mechanism with an opening and closing switching structure according to claim 2, characterized in that: The piston rod of the switching drive cylinder is located between the cylinder body and the limiting top beam, and the limiting top beam limits the movement range of the piston rod.

5. The lower eyelid guide wire mechanism with an opening and closing switching structure according to claim 2, characterized in that: The piston rod of the switching cylinder is provided with a transition end post. Both ends of the transition end post extend to both sides of the limiting top beam. Each lower section of the lower guide wire clamp arm is provided with a deflection protrusion. The deflection protrusion protrudes into the inner side of the lower section of the lower guide wire clamp arm, and its inner edge is provided with a mating notch. Both ends of the transition end post abut against the mating notch through a rotating shaft.

6. The lower eyelid guide wire mechanism with an opening and closing switching structure according to claim 2, characterized in that: The cross-section of each guidewire groove is arc-shaped, and the cross-section of the guidewire channel is circular.

7. The lower eyelid guide wire mechanism with an opening and closing switching structure according to claim 6, characterized in that: Each guide wire groove has an enlarged diameter cone at its top, and the diameter of the enlarged diameter cone gradually expands to guide the cutting wire as it enters the guide channel.

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