Wire conveying mechanism with insulation switching structure

Abstract

The utility model provides a kind of wire conveying mechanism with insulation switching structure, including supporting main arm, supporting auxiliary arm and switching pad, switching pad is located between supporting auxiliary arm and supporting main arm, it is made of insulating material, and is connected with supporting main arm and supporting auxiliary arm by connecting piece, the wire conveying mechanism is made of switching pad of insulating material between supporting main arm and supporting auxiliary arm, avoid current shunt through metal rack, ensure that discharge energy is concentrated and acts on processing area, improve cutting efficiency and surface quality, prevent the formation of unexpected conductive loop between supporting main arm and supporting auxiliary arm, reduce abnormal discharge in processing process, guarantee dimensional accuracy and surface finish, switching pad as insulation intermediary, allow supporting main arm and supporting auxiliary arm to be made of different materials or process, insulating material can absorb part of vibration, reduce mechanical shaking caused by cutting wire tension change in wire conveying process, so that wire cutting equipment runs safely and stably under high pressure, high-precision working condition.

Description

Technical Field

[0001] This utility model relates to wire electrical discharge cutting equipment, and more particularly to a wire feeding mechanism with an insulating transfer structure. Background Technology

[0002] Patent document CN108581105B discloses a wire feeding mechanism for cutting wires, which includes a suspension mechanism, a lateral deflection mechanism, a longitudinal deflection mechanism, and a wire guide mechanism. The suspension mechanism is fixedly installed on the frame, the lateral deflection mechanism is mounted on the suspension mechanism, the longitudinal deflection mechanism is mounted on the lateral deflection mechanism, and the wire guide mechanism is mounted on the longitudinal deflection mechanism. The wire guide mechanism deflects together with the longitudinal deflection mechanism, and the longitudinal deflection mechanism deflects together with the lateral deflection mechanism. The wire guide nozzle of the wire guide mechanism is located in the wire guide nozzle seat. With the cooperation of the adjustment plate, the position of the wire guide nozzle can be finely adjusted, and it is easy to disassemble and install. The guide wheel is installed with the cooperation of the guide wheel positioning block and the guide wheel pressure block, which is easy to adjust and helps to improve the movement flexibility and stability of the wire guide arm, and facilitates the adjustment of the electrode wire direction. Utility Model Content

[0003] The purpose of this invention is to provide a wire feeding mechanism with an insulating transition structure.

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

[0005] A wire feeding mechanism with an insulating transition structure, comprising:

[0006] The main support arm is mounted on the frame of the cutting equipment via a connector at its inner end, and its outer end extends laterally outward.

[0007] A support arm is located outside the outer end of the main support arm and extends along the extension direction of the main support arm.

[0008] The adapter plate is located between the auxiliary support arm and the main support arm. It is made of insulating material and is connected to the main support arm and the auxiliary support arm through connectors. The adapter plate insulates the connection between the main support arm and the auxiliary support arm and forms a cutting wire conveying channel in the auxiliary support arm, the adapter plate and the main support arm.

[0009] In one embodiment of this utility model, a voltage supply block is provided in the support arm. The voltage supply block is connected to the power supply through a line, and a power supply transmission channel is formed inside it, so that the cutting wire abuts against the voltage supply block during the transmission process, and the voltage supply block supplies power to the cutting wire.

[0010] In one embodiment of this utility model, a wire guide tube is provided in the main arm of the carrier. The wire guide tube is made of insulating material, with its inner end extending toward the direction of the wire winding drum and its outer end extending toward the direction of the auxiliary arm of the carrier, forming a transverse conveying channel in the wire guide tube so that the wire can move along the transverse conveying channel.

[0011] In one embodiment of this utility model, the guide wire tube is made of insulating material, and the side of the adapter plate is provided with a clearance notch. The outer end of the guide wire tube passes through the clearance notch and extends to the voltage supply block.

[0012] In one embodiment of this utility model, the support arm is further provided with a guide wire end, which corresponds to the position of the power supply block and forms a turning conveying channel inside it, so that the cutting wire can move along the turning conveying channel. The guide wire end and the guide wire cross tube are arranged on both sides of the power supply block, so that the cutting wire can move along the turning conveying channel, the power supply conveying channel and the transverse conveying channel.

[0013] In one embodiment of this utility model, the inner end of the guide wire horizontal tube is provided with a mating end tube, which is adapted to the shape of the cutting wire winding drum, and the mating end tube provides auxiliary guidance for the process of the cutting wire entering the cutting wire winding drum.

[0014] In one embodiment of this utility model, the mating end tube is made of conductive material, and power can be supplied to the mating end tube when the cutting wire contacts the inner wall of the mating end tube.

[0015] The advantages of this utility model are:

[0016] The wire feeding mechanism incorporates an insulating transition plate between the main support arm and the auxiliary support arm. This prevents current from being diverted through the metal frame, ensuring that discharge energy is concentrated in the processing area, improving cutting efficiency and surface quality. It also prevents the formation of unintended conductive loops between the main and auxiliary support arms, reducing abnormal discharges during processing and guaranteeing dimensional accuracy and surface finish. The transition plate, acting as an insulating intermediary, allows the main and auxiliary support arms to be manufactured using different materials or processes, simplifying processing and maintenance. The insulating material absorbs some vibrations, reducing mechanical vibrations caused by changes in wire tension during feeding, extending the lifespan of guide components, and ensuring safe and stable operation of the wire EDM equipment under high-pressure, high-precision conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the wire feeding mechanism with an insulating transfer structure proposed in this utility model;

[0018] Figure 2 This is an exploded view of the wire conveying mechanism;

[0019] Figure 3 yes Figure 2 A cross-sectional view. 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 Figures 1-3 As shown, the wire conveying mechanism with an insulated transfer structure proposed in this utility model includes a main support arm 100, a secondary support arm 200, and a transfer pad 300. The inner end of the main support arm is installed in the frame of the cutting equipment through a connector, and its outer end extends laterally outward. The secondary support arm is located outside the outer end of the main support arm and extends along the extension direction of the main support arm. The transfer pad is located between the secondary support arm and the main support arm. It is made of insulating material and is connected to the main support arm and the secondary support arm through a connector. The transfer pad insulates the connection between the main support arm and the secondary support arm and forms a wire conveying channel in the secondary support arm, the transfer pad, and the main support arm.

[0022] In this embodiment, a voltage supply block 210 is provided in the support arm. The voltage supply block is connected to the power supply through a line, and a power supply transmission channel is formed inside it, so that the cutting wire comes into contact with the voltage supply block during the transmission process, and the voltage supply block supplies power to the cutting wire.

[0023] In this embodiment, the main arm of the carrier is provided with a wire guide tube 110. The wire guide tube is made of insulating material, with its inner end extending toward the direction of the wire winding drum and its outer end extending toward the direction of the carrier auxiliary arm, forming a transverse conveying channel in the wire guide tube so that the wire can move along the transverse conveying channel.

[0024] In this embodiment, the guide wire tube is made of insulating material, and the side of the adapter plate is provided with a clearance notch 310. The outer end of the guide wire tube passes through the clearance notch and extends to the voltage supply block.

[0025] In this embodiment, the support arm is also provided with a guide wire end 220, which corresponds to the position of the power supply block and forms a turning conveying channel inside it, so that the cutting wire can move along the turning conveying channel. The guide wire end and the guide wire cross tube are arranged on both sides of the power supply block, so that the cutting wire can move along the turning conveying channel, the power supply conveying channel and the transverse conveying channel.

[0026] In this embodiment, the inner end of the guide wire tube is provided with a mating end tube 120, which is adapted to the shape of the cutting wire winding drum. The mating end tube provides auxiliary guidance for the process of the cutting wire entering the cutting wire winding drum.

[0027] In this embodiment, the mating tube is made of conductive material, and power can be supplied to the mating tube when the cutting wire contacts the inner wall of the mating tube. The mating tube can be connected to a current sensor through a circuit. When the current sensor detects that the mating tube is energized, it can know that the cutting wire has reached the mating tube, which makes it easy to control the wire threading progress.

[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 wire feeding mechanism with an insulating transition structure, characterized in that, include: The main support arm is mounted on the frame of the cutting equipment via a connector at its inner end, and its outer end extends laterally outward. A support arm is located outside the outer end of the main support arm and extends along the extension direction of the main support arm. The adapter plate is located between the auxiliary support arm and the main support arm. It is made of insulating material and is connected to the main support arm and the auxiliary support arm through connectors. The adapter plate insulates the connection between the main support arm and the auxiliary support arm and forms a cutting wire conveying channel in the auxiliary support arm, the adapter plate and the main support arm.

2. The wire feeding mechanism with an insulating transition structure according to claim 1, characterized in that: The auxiliary arm of the support is equipped with a voltage supply block, which is connected to the power supply through a line, forming a power supply channel inside. This allows the cutting wire to come into contact with the voltage supply block during the conveying process, and the voltage supply block supplies power to the cutting wire.

3. The wire feeding mechanism with an insulating transition structure according to claim 1, characterized in that: The main arm of the carrier is equipped with a wire guide tube, which is made of insulating material. Its inner end extends toward the wire winding drum and its outer end extends toward the carrier auxiliary arm, forming a transverse conveying channel in the wire guide tube, so that the wire can move along the transverse conveying channel.

4. The wire feeding mechanism with an insulating transition structure according to claim 3, characterized in that: The guide wire tube is made of insulating material. The side of the adapter plate has a clearance notch. The outer end of the guide wire tube passes through the clearance notch and extends to the voltage supply block.

5. A wire feeding mechanism with an insulating transition structure according to claim 3, characterized in that: The carrier arm is also equipped with a guide wire end, which corresponds to the position of the power supply block and forms a turning conveying channel inside it, so that the cutting wire can move along the turning conveying channel. The guide wire end and the guide wire cross tube are arranged on both sides of the power supply block, so that the cutting wire can move along the turning conveying channel, the power supply conveying channel and the transverse conveying channel.

6. A wire feeding mechanism with an insulating transition structure according to claim 4, characterized in that: The inner end of the guide wire tube is provided with a matching end tube, which is adapted to the shape of the cutting wire winding drum. The matching end tube provides auxiliary guidance for the cutting wire to enter the cutting wire winding drum.

7. A wire feeding mechanism with an insulating transition structure according to claim 6, characterized in that: The connector tube is made of conductive material, and power can be supplied to the connector tube when the cutting wire comes into contact with the inner wall of the connector tube.

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