Electrode wire clamping and conveying device facilitating wire threading
By setting a guide surface in the electrode wire clamping device, the problem of blockage of the electrode wire at the connection between the clamping channel and the wire threading channel is solved, realizing smooth insertion and efficient clamping of the electrode wire and reducing the equipment failure rate.
Patent Information
- Application Number
- CN202520133172.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing electrode wire clamping devices are prone to causing electrode wire bending or blockage when switching between clamping and disengaging states, affecting the smoothness of automatic wire threading and the failure rate of the equipment.
An electrode wire clamping and feeding device was designed to facilitate wire threading. By setting a guide surface at the connection between the clamping channel and the wire threading channel, the guide surface guides the movable end of the electrode wire and prevents the electrode wire from getting blocked during wire threading.
It improves the smoothness of electrode wire threading, reduces the failure rate, ensures smooth electrode wire insertion and efficient clamping, and reduces equipment failures.
Smart Images
Figure CN223776193U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wire cutting equipment technical field, especially an electrode wire clamping and feeding device convenient for wire threading. BACKGROUND
[0002] Numerical control wire cutting machine tool is usually divided into three categories: fast wire cutting machine tool, medium wire cutting machine tool and slow wire cutting machine tool, taking fast wire cutting machine tool as an example, electrode wire makes high speed reciprocating motion, and wire speed is 8m / s~10m / s. Its working principle is as follows: electrode wire passes through small hole drilled in advance on workpiece, and is driven to reciprocate alternately by wire drum, workpiece is installed on conductive workbench through insulating plate, and conductive workbench moves in X and Y two coordinate directions of horizontal plane respectively according to given control program to synthesize arbitrary plane curve track. Impulse power applies pulse voltage to electrode wire and workpiece, electrode wire is connected to the negative pole of impulse power, and workpiece is connected to the positive pole of impulse power. When an electric pulse comes, spark discharge occurs between electrode wire and workpiece, and the temperature in the center of discharge channel can be as high as 10000 DEG C or more, high temperature makes workpiece metal melt, even a small amount of gasification, and high temperature also makes part of working fluid between electrode wire and workpiece gasify, and these gasified working fluid and metal vapor expand rapidly and have explosive characteristics. The thermal expansion and local micro-explosion throw the melted and gasified metal material to realize electric erosion cutting of workpiece material.
[0003] In order to meet the realization of production equipment automation, automatic wire threading has become the focus of technical research and development in the field, in order to realize automatic wire threading, wire threading path needs to be built, and electrode wire can realize automatic wire threading by using wire threading path. In the wire threading path, the clamping and feeding device is a very important component, which can realize automatic wire threading and clamping and feeding of electrode wire. The clamping and feeding wheel group in the clamping and feeding device needs to switch between clamping and separation, and there must be a gap inside, which can easily cause electrode wire to bend or even block wire during wire threading, so how to improve the structure to make wire threading more smooth and reduce the failure rate has become a problem urgently to be solved in the industry. UTILITY MODEL CONTENTS
[0004] The main purpose of the utility model is to provide an electrode wire clamping and feeding device convenient for wire threading, which solves the problems in the background art.
[0005] To achieve the above object, one aspect of the utility model provides a kind of electrode wire clamping and feeding device facilitating threading, including the clamping and feeding wheel group for clamping and feeding electrode wire and the mounting seat of assembly described clamping and feeding wheel group, described clamping and feeding wheel group includes driving clamping and feeding wheel and driven clamping and feeding wheel, described driving clamping and feeding wheel and driven clamping and feeding wheel pinch to form the clamping and feeding channel for clamping and feeding electrode wire, described driving clamping and feeding wheel is connected with drive motor, described driving clamping and feeding wheel and / or described driven clamping and feeding wheel is connected with pinch driving mechanism, described pinch driving mechanism can drive described driving clamping and feeding wheel and described driven clamping and feeding wheel pinch to realize the clamping of electrode wire, described mounting seat is equipped with first gasket on the side of described driving clamping and feeding wheel, is equipped with second gasket on the side of described driven clamping and feeding wheel, described first gasket and described second gasket pinch to form the threading channel that can pass through electrode wire, described threading channel includes first threading channel and second threading channel respectively located in the two sides of described clamping and feeding channel, described clamping and feeding channel is communicated with the first threading channel and second threading channel, the communication place of described clamping and feeding channel and described threading channel is equipped with guide surface.
[0006] Further, the two sides of the clamping and feeding channel are provided with wear-resistant third gaskets.
[0007] Further, the driven clamping and feeding wheel is connected with the pinch driving mechanism, the second gasket is provided with a second slot, a wear-resistant fourth gasket is arranged at the second slot, the fourth gasket can slide in the second slot, a third slot adapted to the driven clamping and feeding wheel is arranged in the fourth gasket, the driven clamping and feeding wheel can rotate in the third slot, under the cooperation of the second slot and the fourth gasket, the driven clamping and feeding wheel can move close to or away from the driving clamping and feeding wheel under the action of the pinch driving mechanism.
[0008] Further, the guide surface includes a first guide surface on the side of the fourth gasket close to the first threading channel.
[0009] Further, the guide surface includes a second guide surface on the side of the fourth gasket close to the communication place of the clamping and feeding channel and the second threading channel.
[0010] Further, the guide surface includes a third guide surface on the side of the first gasket close to the communication place of the clamping and feeding channel and the second threading channel.
[0011] Further, the guide surface includes a fourth guide surface on the side of the second gasket close to the communication place of the clamping and feeding channel and the second threading channel.
[0012] Further, the mounting seat includes a first mounting block and a second mounting block, the first gasket and the second gasket are clamped between the first mounting block and the second mounting block.
[0013] Furthermore, the mounting base includes a first mounting block and a second mounting block, and the two third gaskets are respectively embedded on the opposite side of the first mounting block and the second mounting block.
[0014] Furthermore, the clamping wheel assembly includes a drive gear and a driven gear. The drive gear is coaxially connected to the drive clamping wheel via a drive shaft, and the driven gear is coaxially connected to the driven clamping wheel via a driven shaft.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] By setting a guide surface at the connection between the clamping channel and the threading channel, the movable end of the electrode wire is guided, preventing the electrode wire from getting stuck at the connection between the threading channel and the clamping channel, making the threading smoother and reducing the failure rate. Attached Figure Description
[0017] 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.
[0018] Fig. 1 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention ① (with the clamping wheel assembly in the open state);
[0019] Fig. 2 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention ② (clamping wheel assembly in clamping state);
[0020] Fig. 3 This is an exploded structural diagram of Embodiment 1 of the present invention ①;
[0021] Fig. 4 This is an exploded structural diagram of Embodiment 1 of the present invention ②.
[0022] Reference numerals: 1-Driven clamping wheel; 2-Driven clamping wheel; 3-Clamping channel; 4-First gasket; 5-Second gasket; 6-First threading channel; 7-Second threading channel; 8-Inspection hole; 9-Insertion block; 10-First mounting block; 11-Second mounting block; 12-Third gasket; 13-Second slot; 14-Fourth gasket; 15-First guide surface; 16-Second guide surface; 17-Third guide surface; 18-Fourth guide surface; 19-Drive gear; 20-Driven gear; 21-Cover. Detailed Implementation
[0023] 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.
[0024] 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.
[0025] 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.
[0026] Example 1: Refer to Figs. 1 to 4This utility model proposes an electrode wire clamping device, including a clamping wheel assembly for clamping the electrode wire and a mounting base for assembling the clamping wheel assembly. The clamping wheel assembly includes a driving clamping wheel 1 and a driven clamping wheel 2. The driving clamping wheel 1 and the driven clamping wheel 2 clamp together to form a clamping channel 3 for clamping the electrode wire. The driving clamping wheel 1 is connected to a drive motor (not shown in the figure). The driving clamping wheel 1 and / or the driven clamping wheel 2 are connected to a clamping drive mechanism (not shown in the figure). The clamping drive mechanism can drive the driving clamping wheel 1 and the driven clamping wheel 2 to clamp together to achieve clamping of the electrode wire. The mounting base has a first gasket 4 on one side of the driving clamping wheel 1 and a second gasket 5 on one side of the driven clamping wheel 2. The first gasket 4 and the second gasket 5 are clamped together to form a wire-threading channel through which the electrode wire can pass. The wire-threading channel includes a first wire-threading channel 6 and a second wire-threading channel 7 located on both sides of the clamping channel 3. The clamping channel 3 connects to the first wire-threading channel 6 and the second wire-threading channel 7. A guide surface is provided at the connection between the clamping channel 3 and the wire-threading channel to guide the movable end of the electrode wire and prevent the electrode wire from getting stuck at the connection between the wire-threading channel and the clamping channel 3. An inspection hole 8 is provided on one end face of the mounting base. The inspection hole 8 connects to the clamping channel 3 to facilitate maintenance when the clamping channel 3 is blocked or malfunctions. The inspection hole 8 extends to both sides to cover the connection between the clamping channel 3 and the wire-threading channel in its visible area, facilitating maintenance when the connection is blocked or malfunctions. A detachable insert 9 is provided at the inspection hole 8 to enable quick disassembly and assembly for easy maintenance.
[0027] Specifically, the mounting base includes a first mounting block 10 and a second mounting block 11. Wear-resistant third gaskets 12 are provided on both sides of the clamping channel 3. Two third gaskets 12 are respectively embedded on the opposite side of the first mounting block 10 and the second mounting block 11, with one third gasket 12 embedded on one end face of the insert block 9. The third gaskets 12 prevent the electrode wire from cutting and damaging the first mounting block 10 and the second mounting block 11 during cutting. A first gasket 4 and a second gasket 5 are sandwiched between the first mounting block 10 and the second mounting block 11, forming a wire-threading channel rather than being directly formed on the first mounting block 10 and the second mounting block 11. This ensures higher processing accuracy and guarantees the precision of the wire-threading channel, thus facilitating wire threading. An inspection hole 8 is provided on the first mounting block 10, penetrating through it. In this embodiment, the driven clamping wheel 2 is connected to the clamping drive mechanism. The second pad 5 is provided with a second groove 13, and a wear-resistant fourth pad 14 is provided at the second groove 13. The fourth pad 14 can slide in the second groove 13. The fourth pad 14 is provided with a third groove that is adapted to the driven clamping wheel 2. The driven clamping wheel 2 can rotate in the third groove. The first pad 4 is provided with a fourth groove that is adapted to the driving clamping wheel 1. The driving clamping wheel 1 can rotate in the fourth groove. Under the cooperation of the second groove and the fourth pad 14, the driven clamping wheel 2 can move closer to or away from the driving clamping wheel 1 under the action of the clamping drive mechanism. When the driven clamping wheel 2 moves closer to the driving clamping wheel 1, it forms a clamping channel 3, which is convenient for clamping the electrode wire. When the driven clamping wheel 2 moves away from the driving clamping wheel 1, it releases the clamping of the electrode wire, which is convenient for the high-speed back and forth of the electrode wire during cutting.
[0028] Specifically, the guide surfaces include a first guide surface 15 on the side of the fourth gasket 14 near the first threading channel 6, a second guide surface 16 on the side of the fourth gasket 14 near the junction of the clamping channel 3 and the second threading channel 7, a third guide surface 17 on the side of the first gasket 4 near the junction of the clamping channel 3 and the second threading channel 7, and a fourth guide surface 18 on the side of the second gasket 5 near the junction of the clamping channel 3 and the second threading channel 7. By providing guide surfaces, the movable end of the electrode wire is guided, making the threading of the electrode wire smoother and less prone to bending or blockage.
[0029] Specifically, the clamping wheel assembly includes a drive gear 19 and a driven gear 20. The drive gear 19 is coaxially connected to the drive clamping wheel 1 via a drive shaft (not shown in the figure), and the driven gear 20 is coaxially connected to the driven clamping wheel 2 via a driven shaft (not shown in the figure). A recessed groove for mounting the drive gear 19 and the driven gear 20 is provided on one side of the mounting base. A removable cover 21 is provided at the opening of the groove to facilitate maintenance.
[0030] The working principle of this embodiment:
[0031] During wire threading, the clamping drive mechanism drives the driven clamping wheel 2 away from the driving clamping wheel 1, opening the clamping channel 3 and connecting it with the wire threading channels on both sides. The electrode wire is threaded through the first wire threading channel 6, passes through the clamping channel 3, and enters the second wire threading channel 7. During the wire threading process, the guide surface guides the movable end of the electrode wire, making the wire threading smoother and less prone to bending or blockage. In case of wire blockage, the insert 9 can be removed from the inspection hole 8 for quick repair of the blockage.
[0032] 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. An electrode wire clamping and feeding device for easy wire threading, comprising a clamping wheel assembly for clamping and feeding the electrode wire and a mounting base for assembling the clamping wheel assembly, the clamping wheel assembly comprising a driving clamping wheel and a driven clamping wheel, the driving clamping wheel and the driven clamping wheel clamping together to form a clamping channel for clamping and feeding the electrode wire, the driving clamping wheel being connected to a drive motor, the driving clamping wheel and / or the driven clamping wheel being connected to a clamping drive mechanism, the clamping drive mechanism being capable of driving the driving clamping wheel and the driven clamping wheel to clamp together to achieve clamping of the electrode wire, characterized in that: The mounting base has a first pad on one side of the driving clamping wheel and a second pad on one side of the driven clamping wheel. The first pad and the second pad are clamped together to form a wire-passing channel through which the electrode wire can pass. The wire-passing channel includes a first wire-passing channel and a second wire-passing channel located on both sides of the clamping channel. The clamping channel connects the first wire-passing channel and the second wire-passing channel. A guide surface is provided at the connection between the clamping channel and the wire-passing channel.
2. The electrode wire clamping and feeding device for easy wire threading according to claim 1, characterized in that: The clamping channel is provided with wear-resistant third pads on both sides.
3. The electrode wire clamping and feeding device for easy wire threading according to claim 1, characterized in that: The driven clamping wheel is connected to the clamping drive mechanism. The second pad has a second groove, and a wear-resistant fourth pad is provided at the second groove. The fourth pad can slide in the second groove. The fourth pad has a third groove that is adapted to the driven clamping wheel. The driven clamping wheel can rotate in the third groove. Under the cooperation of the second groove and the fourth pad, the driven clamping wheel can move closer to or away from the driving clamping wheel under the action of the clamping drive mechanism.
4. The electrode wire clamping and feeding device for easy wire threading according to claim 3, characterized in that: The guide surface is a first guide surface on the side of the fourth pad near the first threading channel.
5. The electrode wire clamping and feeding device for easy wire threading according to claim 3, characterized in that: The guide surface includes a second guide surface on the side of the fourth pad near the junction of the clamping channel and the second threading channel.
6. The electrode wire clamping and feeding device for easy wire threading according to claim 1, characterized in that: The guide surface includes a third guide surface on the side of the first pad near the junction of the clamping channel and the second threading channel.
7. The electrode wire clamping and feeding device for easy wire threading according to claim 1, characterized in that: The guide surface includes a fourth guide surface on the side of the second pad near the junction of the clamping channel and the second threading channel.
8. The electrode wire clamping and feeding device for easy wire threading according to claim 1, characterized in that: The mounting base includes a first mounting block and a second mounting block, with the first gasket and the second gasket sandwiched between the first mounting block and the second mounting block.
9. The electrode wire clamping and feeding device for easy wire threading according to claim 2, characterized in that: The mounting base includes a first mounting block and a second mounting block, and the two third gaskets are respectively embedded on the opposite side of the first mounting block and the second mounting block.
10. An electrode wire feeding device for easy wire threading according to any one of claims 1-9, characterized in that: The clamping wheel assembly includes a drive gear and a driven gear. The drive gear is coaxially connected to the drive clamping wheel via a drive shaft, and the driven gear is coaxially connected to the driven clamping wheel via a driven shaft.