CN120244120A - A roughing and finishing integrated wire cutting machine and cutting method - Google Patents
A roughing and finishing integrated wire cutting machine and cutting method Download PDFInfo
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- CN120244120A CN120244120A CN202510479440.8A CN202510479440A CN120244120A CN 120244120 A CN120244120 A CN 120244120A CN 202510479440 A CN202510479440 A CN 202510479440A CN 120244120 A CN120244120 A CN 120244120A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
- B23H7/08—Wire electrodes
- B23H7/10—Supporting, winding or electrical connection of wire-electrode
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Abstract
本发明公开了一种开粗与精修一体的线切割机及切割方法，包括第一电极丝和第二电极丝，第一电极丝和第二电极丝能择一穿设于自动穿丝回路中并往复运动以切割工件。在同一个自动穿丝回路中，先利用第一电极丝进行开粗切割，再利用第二电极丝进行精修切割，能够保证较高的切割质量，且第一电极丝和第二电极丝都是往复走丝、重复使用，相比与铜丝的单向走丝，显著降低了加工成本；采用一套电极丝可往复运动的自动穿丝回路，便可满足第一电极丝和第二电极丝的自动穿丝与往复切割，相比于两套穿丝系统的方案，机械结构更加简洁、稳定，设备造价更低，具备更强的市场竞争优势。
The present invention discloses a roughing and finishing integrated wire cutting machine and cutting method, including a first electrode wire and a second electrode wire, the first electrode wire and the second electrode wire can be selected to be inserted into an automatic wire threading circuit and reciprocate to cut a workpiece. In the same automatic wire threading circuit, the first electrode wire is first used for roughing cutting, and then the second electrode wire is used for finishing cutting, which can ensure a high cutting quality, and the first electrode wire and the second electrode wire are both reciprocating wires and reused, which significantly reduces the processing cost compared to the unidirectional wire threading of copper wire; using a set of automatic wire threading circuits in which the electrode wires can reciprocate, the automatic wire threading and reciprocating cutting of the first electrode wire and the second electrode wire can be met. Compared with the solution of two sets of wire threading systems, the mechanical structure is more concise and stable, the equipment cost is lower, and it has a stronger market competitive advantage.
Description
Technical Field
The invention relates to the technical field of wire cutting equipment, in particular to a wire cutting machine integrating rough cutting and finish cutting and a cutting method.
Background
Numerical control wire cutting machines are generally classified into three types, namely a fast wire cutting machine, a medium wire cutting machine and a slow wire cutting machine, wherein the fast wire cutting machine is taken as an example, a wire electrode performs high-speed reciprocating motion, and the wire feeding speed is 8-10 m/s. The working principle is that the wire electrode passes through a pre-drilled small hole on a workpiece, the wire electrode is driven by a wire cylinder to reciprocate alternately through a guide wheel, the workpiece is arranged on a conductive workbench through an insulating plate, and the conductive workbench moves in two coordinate directions of a horizontal plane X, Y respectively according to a given control program to synthesize any plane curve track. The pulse power supply applies pulse voltage to the wire electrode and the workpiece, the wire electrode is connected with the negative electrode of the pulse power supply, and the workpiece is connected with the positive electrode of the pulse power supply. When an electric pulse is generated, spark discharge is generated between the wire electrode and the workpiece, the instantaneous elbow of the central temperature of the discharge channel can reach more than 10000 ℃, the workpiece metal is melted at high temperature, even a small amount of the workpiece metal is gasified, the working fluid part between the wire electrode and the workpiece is gasified at high temperature, and the gasified working fluid and metal vapor instantaneously and rapidly expand and have the characteristic of explosion. The thermal expansion and the local micro explosion throw out the melted and gasified metal material to realize the electric erosion cutting processing of the workpiece material.
The utility model patent with publication number CN116252009B discloses a wire cutting device capable of automatically threading wires, realizing automatic clamping, wire clamping and wire detaching of a wire electrode, the utility model patent with publication number CN117943645A discloses a wire cutting device capable of automatically threading wires and detaching wires, the utility model with publication number CN219632773U discloses a wire electrode dynamic adjusting device for acquiring the difference between the winding and unwinding speed of a wire storage mechanism and the actual clamping speed of the wire electrode by a clamping mechanism and adjusting the speed of the wire storage mechanism and/or the clamping mechanism so as to keep the wire electrode reserve on the wire storage dynamic adjusting mechanism within a preset range. The utility model is further invented based on the prior art for realizing automatic threading and other related technologies.
In an actual processing scene, in order to achieve both processing efficiency and accuracy, a medium-speed wire cutting machine or a fast-speed wire cutting machine is often adopted to perform first-step rough cutting on a workpiece processing surface, and then a slow-speed wire cutting machine is adopted to perform secondary finishing cutting. Under the prior art background, two machines are needed to finish the rough cutting and the finish cutting through two processes, the efficiency is low, and the operation is complex. The utility model patent with publication number of CN200960574Y discloses a reciprocating and unidirectional composite wire-electrode cutting electric discharge machine tool, which combines the advantages of the two types of wire-electrode cutting electric discharge machine tools. But in thinking, the reciprocating wire feeding is adopted for rough cutting, the unidirectional wire feeding is used for finish machining, two sets of wire feeding systems are needed, the structure is complex, the equipment stability is poor, effective popularization cannot be achieved after marketing, and the customer acceptance is low.
Disclosure of Invention
The invention aims to provide a wire cutting machine integrating rough cutting and finish cutting and a cutting method, which solve the technical problems in the background art.
One aspect of the present invention provides a wire cutting machine integrating rough cutting and finishing, comprising a wire storage mechanism for winding and unwinding electrode wires, an upper wire threading mechanism positioned above a workpiece to be processed, and a lower wire threading mechanism positioned below the workpiece to be processed, wherein the electrode wires are unwound from the wire storage mechanism, pass through the workpiece after passing through the upper wire threading mechanism, and then return to the wire storage mechanism for winding through the lower wire threading mechanism, so as to form an automatic wire threading loop capable of reciprocating movement of the electrode wires, comprising:
The first electrode wire is used for cutting in a rough way so as to rapidly remove materials;
the second electrode wire is used for finishing and cutting so as to improve the precision and the surface quality;
the first electrode wire and the second electrode wire are electrode wires of different rolls or different sections of the same roll of electrode wire, and the first electrode wire and the second electrode wire can alternatively penetrate through the automatic wire penetrating loop and reciprocate to cut a workpiece.
Further, the wire storage mechanism comprises at least one wire cylinder, and the electrode wires in the same coil are wound and unwound through the same wire cylinder.
Further, the wire storage mechanism comprises a wire cylinder, the first electrode wire and the second electrode wire are different sections of the same coil electrode wire, the first electrode wire and the second electrode wire are wound and unwound through the same wire cylinder, the wire cylinder is wound and unwound to open and coarsely cut when moving in a first preset interval, and the wire cylinder is wound and unwound to finish cutting when moving in a second preset interval.
Further, a clamping assembly is arranged on the wire cylinder, a butt joint assembly corresponding to the clamping assembly is arranged at one end, close to the wire cylinder, of the lower wire threading mechanism, and when the wire cylinder rotates to a preset position, the electrode wire can pass through the butt joint assembly to penetrate through the clamping assembly and be clamped by the butt joint assembly so as to realize automatic wire connection.
Further, the wire storage mechanism comprises a wire cylinder, the first wire electrode and the second wire electrode are wires of different rolls, the first wire electrode and the second wire electrode are wound and unwound through the same wire cylinder, the wire cylinder is wound and unwound to open and roughly cut the first wire electrode when moving in a first preset interval, and the wire cylinder is wound and unwound to finely repair and cut the second wire electrode when moving in a second preset interval.
Further, a first clamping component and a second clamping component are arranged on the wire cylinder, one end, close to the wire cylinder, of the lower wire threading mechanism is provided with a butt joint component corresponding to the first clamping component and the second clamping component, when the wire cylinder rotates to a first preset position, the first electrode wire can pass through the butt joint component to be threaded to the first clamping component and clamped by the butt joint component so as to realize automatic wire connection, and when the wire cylinder rotates to a second preset position, the second electrode wire can pass through the butt joint component to be threaded to the second clamping component and clamped by the butt joint component so as to realize automatic wire connection.
Further, the wire storage mechanism comprises a first wire cylinder and a second wire cylinder, the first wire electrode is wound and unwound through the first wire cylinder, the second wire electrode is wound and unwound through the second wire cylinder, the first wire cylinder is wound and unwound to open and coarsely cut the first wire electrode when moving, and the second wire electrode is wound and unwound to finish cutting when moving.
Further, the first wire cylinder is provided with a first clamping component, the second wire cylinder is provided with a second clamping component, one end of the lower wire penetrating mechanism, which is close to the wire storage mechanism, is provided with a butt joint component corresponding to the first clamping component and the second clamping component, when the first wire cylinder rotates to a first preset position, the first electrode wire can penetrate through the butt joint component to the first clamping component and is clamped by the first electrode wire to realize automatic wire connection, and when the second wire cylinder rotates to a second preset position, the second electrode wire can penetrate through the butt joint component to the second clamping component and is clamped by the second clamping component to realize automatic wire connection.
Further, a clamping mechanism is included for clamping the electrode wire forward or backward.
Further, the wire storage quantity dynamic adjusting mechanism is used for obtaining the difference between the winding and unwinding speed of the wire storage mechanism and the actual speed of the wire electrode clamped by the clamping and conveying mechanism, and adjusting the speed of the wire storage mechanism and/or the clamping and conveying mechanism so as to keep the wire electrode storage quantity on the wire storage quantity dynamic adjusting mechanism within a preset range.
Another aspect of the present invention provides a cutting method integrating rough cutting and finishing, wherein the wire cutting machine includes the steps of:
S1, a first electrode wire is arranged in an automatic wire feeding loop in a butt joint penetrating way and reciprocates to cut a workpiece, and rough cutting is carried out;
s2, the second electrode wire is arranged in the automatic wire feeding loop in a butt joint penetrating mode and moves in a reciprocating mode to cut a workpiece, and finishing cutting is conducted.
Further, when the switching from the step S1 to the step S2 is performed, the first electrode wire exits the automatic wire feeding loop, and the second electrode wire is butt-jointed to the automatic wire feeding loop by adopting a manual switching or automatic switching mode.
Further, the speed of the reciprocation of the first wire electrode in step S1 is greater than the speed of the reciprocation of the second wire electrode in step S2.
Further, the current when the first electrode wire cuts the workpiece in the step S1 is larger than the current when the second electrode wire cuts the workpiece in the step S2
Compared with the prior art, the invention has the following beneficial effects:
1. In the same automatic wire feeding loop, the first electrode wire is firstly used for rough cutting, then the second electrode wire is used for finishing cutting, so that higher cutting quality can be ensured, and the first electrode wire and the second electrode wire are used repeatedly in a reciprocating way, so that compared with the unidirectional wire feeding of copper wires, the machining cost is remarkably reduced;
2. The automatic wire threading loop with one set of wire electrode capable of reciprocating motion is adopted, so that the automatic wire threading and reciprocating cutting of the first wire electrode and the second wire electrode can be met, and compared with the scheme of two wire threading systems, the mechanical structure is simpler and more stable, the equipment manufacturing cost is lower, and the device has stronger market competitive advantage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the docking assembly and clamping assembly according to embodiment 1 of the present invention;
FIG. 3 is a schematic view showing the winding and unwinding of a wire electrode according to embodiment 1 of the present invention;
FIG. 4 is a schematic view showing the winding and unwinding of a wire electrode according to embodiment 2 of the present invention;
Fig. 5 is a schematic view showing the winding and unwinding of a wire electrode according to embodiment 3 of the present invention.
The reference numerals comprise 1-electrode wire, 2-wire cylinder, 3-workpiece, 4-upper wire threading mechanism, 5-lower wire threading mechanism, 6-wire storage amount dynamic adjusting mechanism, 7-first electrode wire, 8-second electrode wire, 9-clamping assembly, 10-butt joint assembly, 11-first clamping assembly, 12-second clamping assembly, 13-first wire cylinder and 14-second wire cylinder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present invention) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Embodiment 1 referring to fig. 1 to 3, an aspect of the present embodiment discloses a wire cutting machine integrating opening and finishing, comprising a wire storage mechanism for winding and unwinding a wire electrode 1, an upper wire threading mechanism 4 located above a workpiece 3 to be processed, a lower wire threading mechanism 5 located below the workpiece 3 to be processed, a clamping mechanism for clamping the wire electrode 1 forward or backward, and a wire storage amount dynamic adjustment mechanism 6, wherein the wire storage amount dynamic adjustment mechanism 6 is used for obtaining the difference between the winding and unwinding speed of the wire electrode storage mechanism and the actual speed of the wire electrode 1 clamped by the clamping mechanism, and adjusting the speed of the wire storage mechanism and/or the clamping mechanism so that the wire electrode storage amount on the wire storage amount dynamic adjustment mechanism 6 is kept within a preset range, the wire electrode 1 is wound on a path between the wire storage mechanism and the clamping mechanism, and when the winding and unwinding speed of the wire electrode 1 is different from the actual speed of the wire electrode 1 clamped by the clamping mechanism, the wire storage amount dynamic adjustment mechanism 6 changes along with the wire electrode 1 (the utility model of a dynamic bulletin that the wire electrode 1 is a dynamic bulletin device according to a specific utility model of a dynamic bulletin wire electrode 1 of a working principle of a patent of "U.P. 219632773"). The electrode wire 1 is unreeled from the wire storage mechanism, sequentially passes through the wire storage quantity dynamic adjusting mechanism 6 and the upper wire threading mechanism 4, then passes through the workpiece 3, and returns to the wire storage mechanism for winding through the lower wire threading mechanism 5, so that an automatic wire threading loop capable of reciprocating the electrode wire 1 is formed.
The wire electrode 1 comprises a first wire electrode 7 and a second wire electrode 8, wherein the first wire electrode 7 is used for cutting in a rough mode so as to rapidly remove materials, the second wire electrode 8 is used for finishing cutting so as to improve accuracy and surface quality, the first wire electrode 7 and the second wire electrode 8 are wire electrodes 1 of different rolls or different sections of the same roll of wire electrode 1, and the first wire electrode 7 and the second wire electrode 8 alternately penetrate through the automatic wire penetrating loop and reciprocate so as to cut a workpiece 3.
Specifically, the wire storage mechanism comprises a wire cylinder 2, the first electrode wire 7 and the second electrode wire 8 are different sections of the same coil electrode wire 1, molybdenum wires are preferably adopted, the first electrode wire 7 and the second electrode wire 8 are wound on the same wire cylinder 2, the wire cylinder 2 is used for winding and unwinding the first electrode wire 7 to open and cut coarsely when moving in a first preset interval, and the wire cylinder 2 is used for winding and unwinding the electrode wire 1 to finish and cut when moving in a second preset interval. The wire cylinder 2 is provided with a clamping component 9, one end of the lower wire threading mechanism 5, which is close to the wire cylinder 2, is provided with a butt joint component 10 corresponding to the clamping component 9, and when the wire cylinder 2 rotates to a preset position, the electrode wire 1 can be threaded to the clamping component 9 through the butt joint component 10 and clamped by the butt joint component to realize automatic wire connection.
Regarding how the docking assembly 10 docks the wire electrode 1 to the clamping assembly 9, reference may be made to the scheme adopted in the utility model patent application publication No. CN117943645A, "an automatic wire-bonding, threading and wire-detaching method of a wire-electrode cutting apparatus" (this embodiment is preferred but not limited to this scheme), or to the scheme adopted in the utility model patent publication No. CN116213858B, "an automatic wire-bonding, wire-detaching method of a wire-electrode cutting", or to the scheme adopted in the utility model patent publication No. CN220330176U, "an automatic wire-bonding and wire-clamping mechanism of a wire-electrode".
On the other hand, the embodiment also discloses a cutting method integrating rough cutting and finish cutting, which aims at the first time of cutting a workpiece processing surface and aims at the second or more times of cutting the workpiece processing surface as finish cutting, and specifically comprises the following steps:
S0, automatic wire connection, namely unreeling the wire electrode 1 from a wire barrel 2, sequentially passing through a wire storage quantity dynamic adjusting mechanism 6, an upper wire threading mechanism 4, a workpiece 3 and a lower wire threading mechanism 5, rotating the wire barrel 2 to a preset position to enable a butt joint assembly 10 to be in butt joint with a clamping assembly 9, enabling the wire electrode 1 to pass through the butt joint assembly 10 from the lower wire threading mechanism 5 to be arranged at the position of the clamping assembly 9 under the clamping and conveying action of a clamping and conveying mechanism, and clamping and fixing the movable end of the wire electrode 1 by utilizing the clamping assembly 9 to finish automatic wire connection, wherein the wire electrode 1 can be driven to reciprocate to cut the workpiece 3 by forward rotation/reverse rotation of the wire barrel 2;
s1, carrying out rough cutting, namely, aiming at the first cutting of the processing surface of a workpiece 3, abutting and arranging a first electrode wire 7 into an automatic wire threading loop, setting the wire feeding speed of the first electrode wire 7 to be 8-12m/S, setting the pulse width to be 80-120 mu S, setting the peak current to be 4-6A, setting the interelectrode voltage to be more than 70V, enabling a wire cylinder 2 to positively rotate/reversely rotate in a first preset interval, enabling an electrode wire section belonging to the first electrode wire 7 to act on the workpiece 3, and enabling the first electrode wire 7 to reciprocate to realize rough cutting of the processing surface of the workpiece 3;
S2, finishing cutting, namely rotating the wire cylinder 2 to a second preset interval to enable a first electrode wire 7 in an automatic wire threading loop to be automatically switched into a second electrode wire 8, setting the wire feeding speed of the second electrode wire 8 to be 1-3m/S, setting the pulse width to be 20-40 mu S, setting the peak current to be 1-2A, setting the interelectrode voltage to be below 50V, enabling the wire cylinder 2 to positively rotate/reversely rotate in the second preset interval, enabling electrode wire segments belonging to the second electrode wire 8 to act on a workpiece 3, and enabling the second electrode wire 8 to reciprocate to realize second cutting on a processing surface of the workpiece 3 so as to realize finishing cutting;
s3, performing finishing cutting again, namely aiming at products with extremely high requirements on finish and quality of the machined surface, performing multiple finishing cutting on the machined surface of the workpiece 3 by using the reciprocating motion of the second electrode wire 8.
The beneficial effect that this embodiment possesses:
1. In the same automatic wire feeding loop, the first wire electrode 7 is firstly used for rough cutting, then the second wire electrode 8 is used for finish cutting, so that higher cutting quality can be ensured, the first wire electrode 7 and the second wire electrode 8 are used repeatedly in a reciprocating manner, and compared with the unidirectional wire electrode of a copper wire, the machining cost is remarkably reduced;
2. Different sections of the same coil of molybdenum wire are respectively used as the first electrode wire 7 and the second electrode wire 8, so that full-automatic switching between the first electrode wire 7 and the second electrode wire 8 can be realized, rough cutting and finishing cutting can be completed at one time without stopping, and the cutting efficiency is high;
3. The automatic wire threading loop with one set of wire electrode capable of reciprocating motion is adopted, so that automatic wire threading and reciprocating cutting of the first wire electrode 7 and the second wire electrode 8 can be met, and compared with the scheme of two wire threading systems, the mechanical structure is simpler and more stable, the equipment manufacturing cost is lower, and the device has stronger market competitive advantage.
Embodiment 2 referring to fig. 4, the difference between the present embodiment and embodiment 1 is that the first wire electrode 7 and the second wire electrode 8 are wires of different rolls, the first wire electrode 7 and the second wire electrode 8 are wound around the same wire cylinder 2, the wire cylinder 2 receives and releases the first wire electrode 7 to open and cut roughly when moving in a first preset interval, and the wire cylinder 2 receives and releases the wire electrode to finish and cut when moving in a second preset interval. The wire cylinder 2 is provided with a first clamping component 11 and a second clamping component 12, one end of the lower wire threading mechanism, which is close to the wire cylinder 2, is provided with a butt joint component corresponding to the first clamping component 11 and the second clamping component 12, when the wire cylinder 2 rotates to a first preset position, the first electrode wire 7 can be threaded to the first clamping component 11 through the butt joint component and clamped by the first electrode wire to realize automatic wire connection, and when the wire cylinder 2 rotates to a second preset position, the second electrode wire 8 can be threaded to the second clamping component 12 through the butt joint component and clamped by the second electrode wire to realize automatic wire connection. When switching between the first wire electrode 7 and the second wire electrode 8, manual intervention is required, and manual switching is performed. By adopting the technical scheme of the embodiment, the first electrode wire 7 and the second electrode wire 8 are mutually independent, the first electrode wire 7 can be singly replaced when being damaged greatly or broken after being subjected to multiple times of rough cutting, the use of the second electrode wire 8 cannot be influenced, in addition, the second electrode wire 8 can be used as the first electrode wire 7 after being subjected to multiple times of cutting, so that the electrode wire is fully utilized, the consumable cost is reduced, a new electrode wire is adopted as a new second electrode wire 8, and the new electrode wire which is basically free of loss can ensure higher cutting quality.
Embodiment 3 referring to fig. 5, the difference between the present embodiment and embodiment 2 is that the wire storage mechanism includes a first wire cylinder 13 and a second wire cylinder 14, the first wire cylinder 13 and the second wire cylinder 14 are arranged in parallel, the first wire electrode 7 is wound around the first wire cylinder 13, the second wire electrode 8 is wound around the second wire cylinder 14, the first wire cylinder 13 receives the first wire electrode 7 to open the rough cut during movement, and the second wire cylinder 14 receives the wire electrode 1 to finish the cut during movement. The first wire cylinder 13 is provided with a first clamping component 11, the second wire cylinder 14 is provided with a second clamping component 12, one end of the lower wire penetrating mechanism, which is close to the wire storage mechanism, is provided with a butt joint component corresponding to the first clamping component 11 and the second clamping component 12, when the first wire cylinder 13 rotates to a preset position, the first electrode wire 7 can be penetrated to the first clamping component 11 through the butt joint component and clamped by the first electrode wire to realize automatic wire connection, and when the second wire cylinder 14 rotates to the preset position, the second electrode wire 8 can be penetrated to the second clamping component 12 through the butt joint component and clamped by the second electrode wire to realize automatic wire connection. When switching between the first wire electrode 7 and the second wire electrode 8, manual intervention is required, and manual switching is performed. In the embodiment, two wire drums are adopted, so that the first electrode wire 7 and the second electrode wire 8 can be automatically connected and wound and unwound respectively, mutual interference is avoided, and the wire winding and unwinding device is stable and reliable.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (14)
1. The wire cutting machine integrating the thickness cutting and the finishing comprises a wire storage mechanism for collecting and releasing electrode wires, an upper wire threading mechanism positioned above a workpiece to be processed and a lower wire threading mechanism positioned below the workpiece to be processed, wherein the electrode wires are unreeled from the wire storage mechanism, pass through the workpiece after passing through the upper wire threading mechanism, and then return to the wire storage mechanism for winding through the lower wire threading mechanism, so that an automatic wire threading loop capable of reciprocating movement of the electrode wires is formed, and the wire cutting machine is characterized by comprising the following components:
The first electrode wire is used for cutting in a rough way so as to rapidly remove materials;
the second electrode wire is used for finishing and cutting so as to improve the precision and the surface quality;
the first electrode wire and the second electrode wire are electrode wires of different rolls or different sections of the same roll of electrode wire, and the first electrode wire and the second electrode wire can alternatively penetrate through the automatic wire penetrating loop and reciprocate to cut a workpiece.
2. The wire cutting machine integrating rough cutting and finishing as set forth in claim 1, wherein the wire storage mechanism comprises at least one wire cylinder, and the electrode wires of the same coil are wound and unwound through the same wire cylinder.
3. The wire cutting machine integrating rough cutting and finish cutting according to claim 1, wherein the wire storage mechanism comprises a wire cylinder, the first electrode wire and the second electrode wire are different sections of the same coil electrode wire, the first electrode wire and the second electrode wire are wound and unwound through the same wire cylinder, the wire cylinder is used for winding and unwinding the first electrode wire for rough cutting when moving in a first preset interval, and the wire cylinder is used for winding and unwinding the second electrode wire for finish cutting when moving in a second preset interval.
4. The wire cutting machine integrating thickness cutting and finishing as set forth in claim 2, wherein the wire barrel is provided with a clamping assembly, one end of the lower wire threading mechanism, which is close to the wire barrel, is provided with a butt joint assembly corresponding to the clamping assembly, and when the wire barrel rotates to a preset position, an electrode wire can be threaded to the clamping assembly through the butt joint assembly and clamped by the butt joint assembly to realize automatic wire connection.
5. The wire cutting machine integrating rough cutting and finish cutting according to claim 1, wherein the wire storage mechanism comprises a wire cylinder, the first wire electrode and the second wire electrode are wires with different rolls, the first wire electrode and the second wire electrode are wound and unwound through the same wire cylinder, the wire cylinder is wound and unwound to open and rough cut when moving in a first preset interval, and the wire cylinder is wound and unwound to finish cut when moving in a second preset interval.
6. The wire cutting machine integrating the thickness cutting and the finishing cutting into a whole according to claim 4, wherein a first clamping assembly and a second clamping assembly are arranged on the wire barrel, a butt joint assembly corresponding to the first clamping assembly and the second clamping assembly is arranged at one end, close to the wire barrel, of the lower wire threading mechanism, when the wire barrel rotates to a first preset position, the first electrode wire can be threaded to the first clamping assembly through the butt joint assembly and clamped by the butt joint assembly to realize automatic wire connection, and when the wire barrel rotates to a second preset position, the second electrode wire can be threaded to the second clamping assembly through the butt joint assembly and clamped by the butt joint assembly to realize automatic wire connection.
7. The wire cutting machine integrating rough cutting and finishing as set forth in claim 1, wherein the wire storage mechanism comprises a first wire cylinder and a second wire cylinder, the first wire electrode is wound and unwound through the first wire cylinder, the second wire electrode is wound and unwound through the second wire cylinder, the first wire cylinder is wound and unwound to open the rough cutting when moving, and the second wire electrode is wound and unwound to finishing cutting when moving.
8. The wire cutting machine integrating thickness cutting and finishing cutting into a whole according to claim 6, wherein the first wire barrel is provided with a first clamping component, the second wire barrel is provided with a second clamping component, one end of the lower wire threading mechanism, which is close to the wire storage mechanism, is provided with a butt joint component corresponding to the first clamping component and the second clamping component, when the first wire barrel rotates to a first preset position, the first electrode wire can be threaded to the first clamping component through the butt joint component and clamped by the butt joint component to realize automatic wire connection, and when the second wire barrel rotates to a second preset position, the second electrode wire can be threaded to the second clamping component through the butt joint component and clamped by the butt joint component to realize automatic wire connection.
9. The wire cutting machine integrated with rough and finish machining according to claim 1, comprising a clamping mechanism for clamping the electrode wire forwards or backwards.
10. The wire cutting machine integrating the wire cutting, the wire cutting machine and the wire cutting device according to claim 9, wherein the wire cutting machine comprises a wire storage dynamic adjustment mechanism, and the wire storage dynamic adjustment mechanism is used for obtaining the difference between the winding and unwinding speed of the wire storage mechanism and the actual speed of the wire clamped by the clamping and conveying mechanism and adjusting the speed of the wire storage mechanism and/or the clamping and conveying mechanism so as to keep the wire storage on the wire storage dynamic adjustment mechanism within a preset range.
11. An integrated cutting method for rough cutting and finishing, which is used for the wire cutting machine of any one of claims 1 to 10, and is characterized by comprising the following steps:
S1, a first electrode wire is arranged in an automatic wire feeding loop in a butt joint penetrating way and reciprocates to cut a workpiece, and rough cutting is carried out;
s2, the second electrode wire is arranged in the automatic wire feeding loop in a butt joint penetrating mode and moves in a reciprocating mode to cut a workpiece, and finishing cutting is conducted.
12. The method of claim 11, wherein the first wire electrode exits the automatic wire feeding loop when switching from step S1 to step S2, and the second wire electrode is butt-jointed to the automatic wire feeding loop by manual switching or automatic switching.
13. The method of claim 11, wherein the first wire reciprocates at a greater rate than the second wire reciprocates at step S2.
14. The method of claim 11, wherein the current of the first wire electrode cutting the workpiece in step S1 is greater than the current of the second wire electrode cutting the workpiece in step S2.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120985007A (en) * | 2025-10-27 | 2025-11-21 | 苏州宝玛格精密机械有限公司 | An adjustable wire cutting device and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120985007A (en) * | 2025-10-27 | 2025-11-21 | 苏州宝玛格精密机械有限公司 | An adjustable wire cutting device and method thereof |
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