A wire threading guide mechanism with a pneumatic lifting coupling structure

Abstract

The utility model provides a kind of threading guide mechanism with pneumatic lifting connection structure, it includes support bearing frame, adapter assembly carrier, lifting drive cylinder and threading guide core pipe, the threading guide mechanism replaces the lifting structure of traditional motor and screw rod nut pair into rodless cylinder, with the advantages of simplified structure, easy installation, reduces manufacturing assembly difficulty and cost, improves installation efficiency, its operation is stable, can provide stable lifting movement for adapter assembly carrier and threading guide core pipe, improve the stability and precision of cutting wire threading process, response speed is fast, can quickly drive component lifting, meet the quick adjustment demand of cutting equipment, improve production efficiency, maintenance is convenient, structure is simple to reduce fault point, routine maintenance is more easily operated, reduce maintenance cost and downtime, save space simultaneously, compact design optimizes equipment space layout, can satisfy the precision demand of threading guide.

Description

Technical Field

[0001] This utility model relates to wire electrical discharge cutting equipment, and more particularly to a wire threading guide mechanism with a pneumatic lifting and connecting structure. Background Technology

[0002] Patent document CN220921171U discloses an automatic wire threading guide 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 and / or lower wire threading mechanisms to move up and down to achieve docking or separation. 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 of the upper and lower wire threading mechanisms is achieved, thereby realizing automatic wire threading. However, the lifting drive mechanism of this wire threading guide mechanism generally adopts a motor and lead screw and nut structure, which requires the installation of components such as a motor, coupling, transmission belt, lead screw, and nut, occupying a large space. Limited by the motor speed and lead screw lead, the speed increase is limited, and there is an acceleration / deceleration process, resulting in a long response time. The motor and lead screw and nut structure require regular maintenance, and the lead screw is susceptible to cutting fluid contamination, which may shorten its lifespan. Therefore, it is necessary to optimize the structure of this wire threading guide mechanism to overcome the above-mentioned defects. Utility Model Content

[0003] The purpose of this invention is to provide a wire threading guide mechanism with a pneumatic lifting and connecting structure.

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

[0005] A wire threading guide mechanism with a pneumatic lifting and mating structure, comprising:

[0006] A support frame is installed in the cutting equipment and has a load-bearing space inside.

[0007] The transfer assembly frame is installed in the support frame via a vertical sliding structure and can rise or fall within the support frame.

[0008] The lifting drive cylinder is a rodless cylinder. Its cylinder body is installed in the support frame, and its slider is engaged with the transfer assembly frame. The lifting drive cylinder drives the transfer assembly frame to rise or fall.

[0009] The wire threading guide tube is installed in the transfer assembly frame and can rise or fall together with the transfer assembly frame. The wire threading guide tube guides the wire threading process of the cutting wire.

[0010] In one embodiment of this utility model, a cooling water nozzle is provided in the support frame, and the cooling water nozzle is positioned corresponding to the wire threading guide tube. When the wire threading guide tube descends, its bottom can pass through the cooling water nozzle, so that the wire threading guide tube and the cooling water nozzle are connected.

[0011] In one embodiment of this utility model, the support frame is provided with a fixed clamping block and a movable clamping block. The fixed clamping block is installed at the bottom of the support frame through a fixed connector and is located on one side of the threading guide tube. The movable clamping block is installed in the support frame through a clamping cylinder and is located on the other side of the threading guide tube. The movable clamping block is moved by the clamping cylinder to clamp the threading guide tube between the fixed clamping block and the movable clamping block, thereby clamping and positioning the bottom of the threading guide tube.

[0012] In one embodiment of this utility model, a guide rail is provided on the side of the support frame. The guide rail is arranged vertically, and the transfer assembly frame cooperates with the guide rail through a slider. The guide rail guides the rising or falling process of the transfer assembly frame.

[0013] In one embodiment of this utility model, the support frame is provided with a wire feeding guide wheel, which is located above the transfer assembly frame. The cutting wire can pass around the outer wall of the wire feeding guide wheel and enter the wire threading guide core tube. The wire feeding guide wheel guides the conveying path of the cutting wire before it enters the wire threading guide core tube.

[0014] In one embodiment of this utility model, the transfer assembly frame is provided with a fixed pressure roller and a movable pressure roller. The fixed pressure roller is installed in the transfer assembly frame through a rotating shaft and is located on one side of the wire threading guide tube. The movable pressure roller is installed in the assembly frame through an opening and closing cylinder and is located on the other side of the wire threading guide tube. The opening and closing cylinder drives the movable pressure roller to move, and the fixed pressure roller and the movable pressure roller together clamp the cutting wire before it enters the wire threading guide tube.

[0015] In one embodiment of this utility model, a traction motor is provided in the transfer assembly frame. The power output shaft of the traction motor is engaged with the fixed pressure roller, which can drive the fixed pressure roller to rotate and apply traction force to the cutting wire before it enters the wire threading guide tube.

[0016] The advantages of this utility model are:

[0017] This wire-threading guide mechanism replaces the traditional lifting structure consisting of a motor and lead screw and nut assembly with a rodless cylinder. It boasts advantages such as simplified structure and convenient installation, reducing manufacturing and assembly difficulty and costs, and improving installation efficiency. Its smooth operation provides stable lifting motion for the transfer assembly frame and wire-threading guide core tube, enhancing the stability and accuracy of the wire threading process. Its fast response speed allows for rapid lifting of components, meeting the quick adjustment needs of the cutting equipment, improving production efficiency. Maintenance is convenient; the simple structure reduces potential failure points, making daily maintenance easier and reducing maintenance costs and downtime. Simultaneously, it saves space; the compact design optimizes the equipment's spatial layout and meets the accuracy requirements of wire-threading guidance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the back structure of the threading guide mechanism with a pneumatic lifting and connecting structure proposed in this utility model;

[0019] Figure 2 This is a front structural diagram of the wire-threading guide mechanism. Detailed Implementation

[0020] 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.

[0021] like Figure 1 , Figure 2 As shown, the wire threading guide mechanism with a pneumatic lifting and connecting structure proposed in this utility model includes a support frame 100, a transfer assembly frame 200, a lifting drive cylinder 300, and a wire threading guide core tube 400. The support frame is installed in the cutting equipment and has a bearing space inside. The transfer assembly frame is installed in the support frame through a vertical sliding structure and can rise or fall in the support frame. The lifting drive cylinder is a rodless cylinder, with its cylinder body 310 installed in the support frame and its slider 320 engaged with the transfer assembly frame. The lifting drive cylinder drives the transfer assembly frame to rise or fall. The wire threading guide core tube is installed in the transfer assembly frame and can rise or fall together with the transfer assembly frame. The wire threading guide core tube guides the wire threading process.

[0022] In this embodiment, a cooling water nozzle 110 is provided in the support frame. The cooling water nozzle is positioned corresponding to the wire threading guide tube. When the wire threading guide tube descends, its bottom can pass through the cooling water nozzle, so that the wire threading guide tube and the cooling water nozzle are connected.

[0023] In this embodiment, the support frame is provided with a fixed clamping block 120 and a movable clamping block 130. The fixed clamping block is installed at the bottom of the support frame through a fixed connector and is located on one side of the threading guide tube. The movable clamping block is installed in the support frame through a clamping cylinder 131 and is located on the other side of the threading guide tube. The movable clamping block is moved by the clamping cylinder to clamp the threading guide tube between the fixed clamping block and the movable clamping block, thereby clamping and positioning the bottom of the threading guide tube.

[0024] In this embodiment, a guide rail 140 is provided on the side of the support frame. The guide rail is arranged vertically. The transfer assembly frame cooperates with the guide rail through a slider. The guide rail guides the rising or falling process of the transfer assembly frame.

[0025] In this embodiment, the support frame is provided with a wire feeding guide wheel 150, which is located above the transfer assembly frame. The cutting wire can pass around the outer wall of the wire feeding guide wheel and enter the wire threading guide core tube. The wire feeding guide wheel guides the conveying path of the cutting wire before it enters the wire threading guide core tube.

[0026] In this embodiment, the transfer assembly frame is provided with a fixed pressure roller 210 and a movable pressure roller 220. The fixed pressure roller is installed in the transfer assembly frame through a rotating shaft and is located on one side of the wire threading guide tube. The movable pressure roller is installed in the assembly frame through an opening and closing cylinder 221 and is located on the other side of the wire threading guide tube. The opening and closing cylinder drives the movable pressure roller to move, and the fixed pressure roller and the movable pressure roller together clamp the cutting wire before it enters the wire threading guide tube.

[0027] In this embodiment, a traction motor 211 is provided in the transfer assembly frame. The power output shaft of the traction motor is engaged with the fixed pressure roller, which can drive the fixed pressure roller to rotate and apply traction force to the cutting wire before it enters the wire guide tube.

[0028] 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 threading guide mechanism with a pneumatic lifting and connecting structure, characterized in that, include: A support frame is installed in the cutting equipment and has a load-bearing space inside. The transfer assembly frame is installed in the support frame via a vertical sliding structure and can rise or fall within the support frame. The lifting drive cylinder is a rodless cylinder. Its cylinder body is installed in the support frame, and its slider is engaged with the transfer assembly frame. The lifting drive cylinder drives the transfer assembly frame to rise or fall. The wire threading guide tube is installed in the transfer assembly frame and can rise or fall together with the transfer assembly frame. The wire threading guide tube guides the wire threading process of the cutting wire.

2. The threading guide mechanism with a pneumatic lifting and connecting structure according to claim 1, characterized in that: The support frame is equipped with a cooling water nozzle, which corresponds to the position of the wire threading guide tube. When the wire threading guide tube descends, its bottom can pass through the cooling water nozzle.

3. The threading guide mechanism with a pneumatic lifting and connecting structure according to claim 1, characterized in that: The support frame is equipped with a fixed clamping block and a movable clamping block. The fixed clamping block is installed at the bottom of the support frame through a fixed connector and is located on one side of the threading guide tube. The movable clamping block is installed in the support frame through a clamping cylinder and is located on the other side of the threading guide tube. The movable clamping block is moved by the clamping cylinder to clamp the threading guide tube between the fixed clamping block and the movable clamping block.

4. The threading guide mechanism with a pneumatic lifting and connecting structure according to claim 1, characterized in that: The support frame is equipped with a guide rail on its side, which is arranged vertically. The transfer assembly frame cooperates with the guide rail through a slider.

5. The threading guide mechanism with a pneumatic lifting and connecting structure according to claim 1, characterized in that: The support frame is equipped with a wire feeding guide wheel, which is located above the transfer assembly frame. The cutting wire can pass around the outer wall of the wire feeding guide wheel and enter the wire threading guide tube.

6. The threading guide mechanism with a pneumatic lifting and mating structure according to claim 5, characterized in that: The transfer assembly frame is equipped with a fixed pressure roller and a movable pressure roller. The fixed pressure roller is installed in the transfer assembly frame through a rotating shaft and is located on one side of the wire threading guide tube. The movable pressure roller is installed in the assembly frame through an opening and closing cylinder and is located on the other side of the wire threading guide tube.

7. The threading guide mechanism with a pneumatic lifting and connecting structure according to claim 6, characterized in that: The transfer assembly frame is equipped with a traction motor. The power output shaft of the traction motor is engaged with the fixed pressure roller, which can drive the fixed pressure roller to rotate.

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