Lifting butt joint device of upper threading mechanism

Abstract

The utility model discloses a lifting butt joint device of an upper threading mechanism, which comprises a mounting seat, a lifting pipe group and a first driving unit, the mounting seat is provided with a lifting channel which is through up and down, the lifting pipe group is arranged in the lifting channel, and the lifting pipe group comprises a threading rod of which the outer diameter is matched with that of the lifting channel; the first driving unit can drive the wire penetrating rod to ascend and descend in the lifting channel, the wire penetrating rod is hollow to form a first wire penetrating channel through which an electrode wire can pass, the lifting pipe set comprises a guide pipe with the outer diameter matched with the first wire penetrating channel, one end of the guide pipe is fixedly connected to the mounting base, and the other end of the guide pipe is movably inserted into the first wire penetrating channel. The guiding tube is hollow to form a second wire penetrating channel through which an electrode wire can penetrate, the lower middle portion of the first wire penetrating channel is contracted to form a third wire penetrating channel with the inner diameter smaller than that of the first wire penetrating channel, and a guiding conical face is formed at the connecting position of the first wire penetrating channel and the third wire penetrating channel. And the guide conical surface is arranged, so that the butt joint of the first wire penetrating channel and the third wire penetrating channel is smoother, and wire blockage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting equipment technology, and in particular to a lifting and docking device for an upper wire threading mechanism. Background Technology

[0002] The applicant's prior utility model patent application, CN202321032046.2, discloses a filament electrode lifting and clamping docking device, including a filament-threading guide tube, which is hollow and can hold filament electrodes; and a lifting mechanism for driving the filament-threading guide tube to move up and down. The lifting mechanism includes a lifting base and a first driving unit. The lifting base has a vertically penetrating lifting channel in the middle, and the filament-threading guide tube is movably disposed in the lifting channel. The first driving unit drives the filament-threading guide tube to descend for docking to establish the filament-threading channel, thereby achieving automatic filament threading and significantly reducing manual labor. The use of a liftable filament-threading guide tube makes the lifting and docking action smoother and allows for easy removal and replacement of the guide tube, avoiding delays caused by wear or deformation, thus achieving high-efficiency operation and maintenance.

[0003] In actual use, the applicant found that when the wire threading guide descends, the inner diameter of the lifting channel is too large, which cannot play a good role in limiting and guiding the wire electrode. This causes the wire electrode to bend easily in the lifting channel during the wire threading process, resulting in poor wire threading. Therefore, the applicant has developed a lifting-type wire-threading guide device (application number CN202420270725.1), comprising a clamping mechanism with a clamping channel for clamping the wire electrode; a lifting mechanism including a lifting seat and a first driving unit, wherein the lifting seat has a vertically penetrating lifting channel in the middle, which is connected to the clamping channel; and a wire-threading tube assembly including an inner guide tube and a wire-threading rod, both of which are hollow and have a wire-threading channel through which the wire electrode can pass. The outer diameter of the inner guide tube is smaller than the inner diameter of the wire-threading rod. One end of the inner guide tube is connected to the clamping channel, and the other end of the inner guide tube is movably sleeved with the wire-threading rod. The wire-threading rod is movably disposed in the lifting channel, and the first driving unit can drive the wire-threading rod to move up and down in the lifting channel. This invention effectively prevents the wire electrode from bending in the lifting channel, improving the wire-threading efficiency.

[0004] After adopting the above new solution, the inner diameter of the threading rod needs to be adapted to the outer diameter of the inner conduit, resulting in a larger inner diameter of the threading rod. When the electrode wire (i.e., the filamentous electrode) is threaded through the threading rod, the limiting and guiding effect on the electrode wire is relatively limited, and there is a risk of bending and wire blockage. The overall structure still needs further improvement. Utility Model Content

[0005] The main objective of this invention is to provide a lifting and docking device for an upper threading mechanism and a thread spool, thereby solving the problems raised in the background art.

[0006] To achieve the above objectives, one aspect of this utility model provides a lifting and docking device for an upper wire threading mechanism, comprising a mounting base, a lifting tube assembly, and a first driving unit. The mounting base is provided with a vertically penetrating lifting channel, and the lifting tube assembly is disposed in the lifting channel. The lifting tube assembly includes a wire threading rod with an outer diameter adapted to the lifting channel. The first driving unit can drive the wire threading rod to move up and down in the lifting channel. The wire threading rod is hollow, forming a first wire threading channel through which an electrode wire can pass. The lifting tube assembly includes a guide tube with an outer diameter adapted to the first wire threading channel. One end of the guide tube is fixed to the mounting base, and the other end is movably inserted into the first wire threading channel. The guide tube is hollow, forming a second wire threading channel through which an electrode wire can pass. The lower middle part of the first wire threading channel is constricted to form a third wire threading channel with an inner diameter smaller than that of the first wire threading channel. A guide cone surface is formed at the connection between the first wire threading channel and the third wire threading channel.

[0007] Furthermore, the length of the guide tube is greater than the preset lifting height of the wire threading rod.

[0008] Furthermore, the lower end of the threading rod is provided with an eyepiece.

[0009] Furthermore, the upper end of the guide tube is fixed to the mounting base via a fixing seat.

[0010] Furthermore, it includes a limit correction mechanism, which includes a limit component for limiting and correcting the position of the threading rod, and a second driving unit for driving the limit component. The second driving unit can drive the limit component to act on the threading rod so that its position is corrected.

[0011] Furthermore, the limiting component includes a limiting block and a connecting arm. The middle part of the connecting arm is hinged to the outer wall of the mounting base. One end of the connecting arm is connected to the second driving unit, and the other end of the connecting arm is connected to the limiting block. The second driving unit can drive the connecting arm to swing so that the limiting block acts on the outer wall of the wire threading rod.

[0012] Furthermore, the output end of the first drive unit is connected to a gear, and the outer wall of the threading rod is provided with serrations along its length direction. The gear can mesh with the serrations on the threading rod to drive the threading rod to rise and fall.

[0013] Furthermore, the first drive unit includes a lifting wheel assembly and a lifting drive motor that drives the lifting wheel assembly. The threading rod passes through the middle of the lifting wheel assembly, and the lifting wheel assembly can clamp and lift the threading rod.

[0014] Furthermore, the lifting wheel assembly includes a lifting drive wheel and two support wheels. The lifting drive motor can drive the lifting drive wheel to rotate. The lifting drive wheel and the support wheels are respectively located on both sides of the wire threading rod. The height of the lifting drive wheel is located between the heights of the two support wheels.

[0015] Furthermore, it includes a clamping unit, which has a clamping channel for clamping the electrode wire, the clamping channel being connected to the second wire threading channel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The lower middle section of the first wire-threading channel is narrowed to form a third wire-threading channel with an inner diameter smaller than that of the first wire-threading channel. A guide cone surface is formed at the connection between the first and third wire-threading channels. On the one hand, this makes the connection between the first and third wire-threading channels smoother and prevents wire blockage. On the other hand, the third wire-threading channel reduces the inner diameter of the wire-threading rod, giving the wire-threading rod a better limiting and guiding effect on the electrode wire. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention ① (initial position of the threading rod);

[0020] Figure 2 for Figure 1 Enlarged view of part a;

[0021] Figure 3 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention ② (threading rod descending and docking);

[0022] Figure 4 for Figure 3 Enlarged view of part b;

[0023] Figure 5 This utility model embodiment 2 shows a schematic diagram of the meshing state of the wire-threading rod and the gear.

[0024] Reference numerals: 1-Mounting base; 2-Lifting channel; 3-Threading rod; 4-First threading channel; 5-Guide tube; 6-Fixed base; 7-Second threading channel; 8-Third threading channel; 9-Guide cone surface; 10-Eye mold; 11-Clamping unit; 12-Second drive unit; 13-Limit block; 14-Connecting arm; 15-Lifting drive motor; 16-Lifting drive wheel; 17-Support wheel; 18-Gear; 19-Sawtooth. Detailed Implementation

[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] Example 1: Refer to Figures 1 to 5This utility model proposes a lifting and docking device for an upper wire threading mechanism, including a mounting base 1, a lifting tube assembly, and a first driving unit. The mounting base 1 is provided with a vertically penetrating lifting channel 2. The lifting tube assembly is located in the lifting channel 2 and includes a wire threading rod 3 with an outer diameter adapted to the lifting channel 2. The first driving unit can drive the wire threading rod 3 to rise and fall in the lifting channel 2. The wire threading rod 3 is hollow to form a first wire threading channel 4 through which electrode wires can pass. The lifting tube assembly includes a guide tube 5 with an outer diameter adapted to the first wire threading channel 4. One end of the guide tube 5 is fixed to the mounting base 1 through a fixing base 6, and the other end is movably inserted into the first wire threading channel. The length of the guide tube 5 is greater than the preset lifting height of the wire threading rod 3 to ensure that the guide tube 5 and the wire threading rod 3 will not separate when the wire threading rod 3 is lowered to the lowest position. The hollow guide tube 5 forms a second wire threading channel 7 through which electrode wires can pass. The lower middle part of the first wire threading channel 4 is constricted to form a third wire threading channel 8 with an inner diameter smaller than the first wire threading channel 4. A guide cone surface 9 is formed at the connection between the first wire threading channel 4 and the third wire threading channel 8. The lower end of the wire threading rod 3 is provided with an eye mold 10, which is connected to the end of the third wire threading channel 8. The eye mold 10 has wear-resistant properties and plays a limiting and guiding role for the electrode wire.

[0029] Specifically, it also includes a limit correction mechanism and a clamping unit 11. The clamping unit 11 has a clamping channel for clamping the electrode wire, which is connected to the second wire-threading channel 7. The limit correction mechanism includes a limit component for limiting and correcting the wire-threading rod 3, and a second drive unit 12 for driving the limit component. The second drive unit 12 can drive the limit component to act on the wire-threading rod 3 to correct its position. The limit component includes a limit block 13 and a connecting arm 14. The middle part of the connecting arm 14 is hinged to the outer wall of the mounting base 1. One end of the connecting arm 14 is connected to the second drive unit 12, and the other end of the connecting arm 14 is connected to the limit block 13. The second drive unit 12 can drive the connecting arm 14 to swing so that the limit block 13 acts on the outer wall of the wire-threading rod 3. The first drive unit includes a lifting wheel assembly and a lifting drive motor 15 for driving the lifting wheel assembly. The wire-threading rod 3 passes through the middle of the lifting wheel assembly, and the lifting wheel assembly can clamp and lift the wire-threading rod 3. The lifting wheel assembly includes a lifting drive wheel 16 and two support wheels 17. The lifting drive motor 15 can drive the lifting drive wheel 16 to rotate. The lifting drive wheel 16 and the support wheels 17 are respectively located on both sides of the wire threading rod 3. The height of the lifting drive wheel 16 is between the heights of the two support wheels 17.

[0030] The working process of this embodiment is as follows:

[0031] During wire threading, the electrode wire enters from the upper end of the guide tube 5 and then enters the wire threading rod 3.

[0032] Example 2: The difference between this example and Example 1 is that the output end of the first drive unit is connected to a gear 18, and the outer wall of the wire threading rod 3 is provided with serrations 19 along its length direction. The gear 18 can mesh with the serrations 19 on the wire threading rod 3 to drive the wire threading rod 3 to rise and fall.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A lifting and docking device for an upper threading mechanism, characterized in that: The device includes a mounting base, a lifting tube assembly, and a first drive unit. The mounting base has a vertically penetrating lifting channel. The lifting tube assembly is located within the lifting channel and includes a wire-threading rod with an outer diameter adapted to the lifting channel. The first drive unit can drive the wire-threading rod to move up and down within the lifting channel. The wire-threading rod is hollow, forming a first wire-threading channel through which electrode wires can pass. The lifting tube assembly includes a guide tube with an outer diameter adapted to the first wire-threading channel. One end of the guide tube is fixed to the mounting base, and the other end is movably inserted into the first wire-threading channel. The guide tube is hollow, forming a second wire-threading channel through which electrode wires can pass. The lower middle part of the first wire-threading channel is constricted to form a third wire-threading channel with an inner diameter smaller than that of the first wire-threading channel. A guide cone surface is formed at the connection between the first and third wire-threading channels.

2. The lifting and docking device for the upper threading mechanism according to claim 1, characterized in that: The length of the guide tube is greater than the preset lifting height of the wire threading rod.

3. The lifting and docking device for the upper threading mechanism according to claim 1, characterized in that: The lower end of the threading rod is provided with an eyepiece.

4. The lifting and docking device for the upper threading mechanism according to claim 1, characterized in that: The upper end of the guide tube is fixed to the mounting base by a fixing seat.

5. The lifting and docking device for the upper threading mechanism according to claim 1, characterized in that: The device includes a limit correction mechanism, which includes a limit component for limiting and correcting the position of the threading rod, and a second drive unit for driving the limit component. The second drive unit can drive the limit component to act on the threading rod so that its position is corrected.

6. The lifting and docking device for the upper threading mechanism according to claim 5, characterized in that: The limiting component includes a limiting block and a connecting arm. The middle part of the connecting arm is hinged to the outer wall of the mounting base. One end of the connecting arm is connected to the second driving unit, and the other end of the connecting arm is connected to the limiting block. The second driving unit can drive the connecting arm to swing so that the limiting block acts on the outer wall of the wire threading rod.

7. The lifting and docking device for the upper threading mechanism according to claim 1, characterized in that: The output end of the first drive unit is connected to a gear, and the outer wall of the threading rod is provided with serrations along its length. The gear can mesh with the serrations on the threading rod to drive the threading rod to rise and fall.

8. The lifting and docking device for the upper threading mechanism according to claim 1, characterized in that: The first drive unit includes a lifting wheel assembly and a lifting drive motor that drives the lifting wheel assembly. The threading rod passes through the middle of the lifting wheel assembly, and the lifting wheel assembly can clamp and lift the threading rod.

9. The lifting and docking device for the upper threading mechanism according to claim 8, characterized in that: The lifting wheel assembly includes a lifting drive wheel and two support wheels. The lifting drive motor can drive the lifting drive wheel to rotate. The lifting drive wheel and the support wheels are respectively located on both sides of the wire threading rod. The height of the lifting drive wheel is between the heights of the two support wheels.

10. The lifting and docking device for the upper threading mechanism according to claim 1, characterized in that: It includes a clamping unit, which has a clamping channel for clamping electrode wires, and the clamping channel is connected to the second wire threading channel.

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