A novel wire-cut electric discharge machine and its processing method
By using auxiliary wire frames and guide wheel systems in the electric spark wire cutting machine tool, combined with control system and pulse power, the problem of single-sided opening of workpieces is solved, and an efficient and simple processing process is achieved, which improves user experience and production efficiency is improved. .
Patent Information
- Application Number
- CN202010424332.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-05-19
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2040-05-19
AI Technical Summary
The existing wire cutting machine tools have complex structure, difficult operation, low production efficiency, and lack simple and cost-effective solutions when handling single-sided openings of workpieces.
A new type of electric spark wire cutting machine tool was designed, using auxiliary wire frames and guide wheel systems. The electrode wire forms a complete movement path through the guide wheels, and realizes a single-sided opening with the movement of the workbench, and accurately controls the cutting through the control system and pulse power supply. process.
It realizes simple operation and efficient production of single-sided opening of workpieces, excellent user experience, simple structure, simple operation and improved efficiency.
Smart Images
Figure CN111468793B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of machine tools, and in particular to a novel electric spark wire cutting machine tool and a processing method thereof. Background Art
[0002] Wire EDM is sometimes called wire cutting. Its basic working principle is to use a continuously moving thin metal wire (called electrode wire) as an electrode to perform pulse spark discharge to erode metal and cut the workpiece into shape. It is mainly used to process various complex and precise small workpieces.
[0003] Currently, there is still no simple and cost-effective solution for wire cutting machines on the market to solve the problem of single-sided (single-side) hole opening in workpieces. Most of the solutions require complex machine structures, difficult operation, and low production efficiency. Therefore, it is necessary to develop a new type of electric spark cutting machine. Summary of the invention
[0004] The present invention aims to provide a novel wire-cut electric discharge machine and a processing method thereof, which effectively solve the deficiencies existing in the background technology, have a simple structure, are easy to operate, and provide an excellent user experience.
[0005] In order to achieve the above object, the technical solution adopted by the present invention is:
[0006] A novel wire-cut electric discharge machine tool comprises: a bed; a workbench, the workbench is slidably mounted on the bed, a fixture is mounted on the workbench, and the fixture is used to clamp a workpiece to be processed; a main wire frame, the main wire frame is arranged on one side of the workbench, a wire conveying device for conveying an electrode wire is arranged on one side of the main wire frame, a first arm and a second arm are also arranged on the main wire frame, a first guide wheel is mounted on the first arm, a second guide wheel is mounted on the second arm, and the electrode wire is mounted on the first guide wheel and the second guide wheel; an auxiliary wire frame, the auxiliary wire frame is arranged on the bed The auxiliary wire frame is provided with a third arm and a fourth arm, the third arm is used to extend into the inner cavity of the workpiece to be processed, and a third guide wheel is installed on one end of the third arm extending into the inner cavity of the workpiece to be processed, the fourth arm is arranged on one side of the third arm, and the fourth arm and the third arm are arranged opposite to each other up and down, and a fourth guide wheel is installed on the fourth arm; wherein, during the forward walking of the electrode wire, the electrode wire is output from the wire conveying device and passes through the first guide wheel, the third guide wheel, the fourth guide wheel and the second guide wheel in sequence and then returns to the wire conveying device.
[0007] Furthermore, the electrode wire is a molybdenum wire.
[0008] Furthermore, the length of the third arm is longer than that of the fourth arm, and reinforcing ribs are provided on both the third arm and the fourth arm.
[0009] Furthermore, the wire transport device comprises a wire storage drum and a wire transport motor, the electrode wire is stored in the wire storage drum, and the wire transport motor is drivingly connected to the electrode wire.
[0010] Furthermore, the bed is also provided with a pulse power supply for providing electrical energy to the electrode wire.
[0011] Furthermore, it also includes a control system, which is used to control the entire cutting process, and the control system includes a controller.
[0012] Another solution provided by the present invention is:
[0013] A wire cutting processing method applied to the above-mentioned new type of electric spark wire cutting machine tool includes the following steps: S1, punching wire holes in the area to be processed of the workpiece to be processed; S2, fixing the workpiece to be processed on the workbench by means of a clamp, and moving the workbench so that the third arm is placed in the inner cavity of the workpiece to be processed; S3, sequentially setting the electrode wire output from the wire feeding device on the first guide wheel, the fourth guide wheel, the third guide wheel and the second guide wheel, and then returning to the wire feeding device; wherein the connection method of the electrode wire between the first guide wheel and the fourth guide wheel is: the electrode wire is connected to the first guide wheel and then connected to the fourth guide wheel through the wire hole; S4, starting the pulse power supply to process the workpiece to be processed.
[0014] Furthermore, in the method of drilling the wire holes in the area to be processed of the workpiece to be processed, the area to be processed is obtained by manually obtaining the specific position of the area to be processed through markings on the drawing.
[0015] Furthermore, the method for obtaining the area to be processed can also be: setting an identification mark on the area to be processed of the workpiece in advance; then, providing a signal identifier, the signal identifier is controlled by a controller, and the signal identifier can identify the identification mark. When the signal identifier identifies the identification mark in the processing area, the signal identifier feeds back a signal to the controller.
[0016] Furthermore, the identification mark is specifically arranged on the peripheral side of the area to be processed of the workpiece to be processed.
[0017] Due to the adoption of the above-mentioned new type of electric spark wire cutting machine and its processing method, the technical problem of single-sided hole opening in the workpiece is effectively solved, and the operation is simple. By adding an auxiliary wire frame, the third arm on the auxiliary wire frame extends into the inner cavity of the workpiece to be processed, and the third arm is provided with a third guide wheel, which is matched with the external first guide wheel, second guide wheel and fourth guide wheel, so that the electrode wire can form a complete moving path, thereby realizing single-sided hole opening on the workpiece to be processed. When the electrode wire is assembled on the above-mentioned guide wheel, the wire transport device is activated, the electrode wire moves, and the workpiece to be processed moves under the action of the workbench to cooperate with the electrode wire for wire cutting; the whole process is simple to operate and efficient, and the user experience is excellent. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is the structural diagram of the new type of wire-cut EDM machine tool;
[0019] Figure 2 for Figure 1 Schematic diagram at A in the middle;
[0020] Figure 3 The figure is a flow chart of the processing method.
[0021] Explanation of numbers in the figure: 1. Bed; 2. Workbench; 3. Fixture; 4. Workpiece to be processed; 5. Main wire rack; 51. First arm; 52. Second arm; 53. First guide wheel; 54. Second guide wheel; 6. Wire transport device; 61. Electrode wire; 7. Auxiliary wire rack; 71. Third arm; 72. Fourth arm; 73. Third guide wheel; 74. Fourth guide wheel; 8. Position where a hole needs to be opened in the workpiece to be processed. DETAILED DESCRIPTION
[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0023] Embodiment 1
[0024] Reference Figure 1-Figure 2A novel wire-cut electric discharge machine tool comprises: a bed 1; a workbench 2, the workbench 2 is slidably mounted on the bed 1, a fixture 3 is mounted on the workbench 2, and the fixture 3 is used to clamp a workpiece 4 to be processed; a main wire frame 5, the main wire frame 5 is arranged on one side of the workbench 2, a wire conveying device 6 for conveying an electrode wire is provided on one side of the main wire frame 5, the main wire frame 5 is also provided with a first arm 51 and a second arm 52, the first arm 51 is mounted with a first guide wheel 53, the second arm 52 is mounted with a second guide wheel 54, the first guide wheel 5 3 and the second guide wheel 54 are equipped with an electrode wire 61; an auxiliary wire frame 7, the auxiliary wire frame 7 is arranged on the bed 1 and is arranged opposite to the main wire frame 5, the auxiliary wire frame 7 is provided with a third arm 71 and a fourth arm 72, the third arm 71 is used to extend into the inner cavity of the workpiece 4 to be processed, and a third guide wheel 73 is installed on one end of the third arm 71 extending into the inner cavity of the workpiece 4 to be processed, the fourth arm 72 is arranged on one side of the third arm 71, and the fourth arm 72 and the third arm 71 are arranged opposite to each other up and down, and a fourth guide wheel 74 is installed on the fourth arm 72.
[0025] The novel wire-cut electric discharge machine is mainly used on a workpiece having an opening on one side thereof. The third arm 71 extends into the inner cavity of the workpiece 4 to be processed through the opening.
[0026] The workbench 2 is slidably mounted on the bed 1, thereby driving the workpiece 4 to slide, thereby cooperating with the overall wire cutting process. At the same time, the fixture 3 is rotatably mounted on the workbench 2, so as to facilitate the adjustment of the position of the workpiece 4 to be processed fixed on the fixture 3.
[0027] Preferably, the electrode wire 61 is a molybdenum wire.
[0028] Among them, in the forward walking process of the electrode wire 61 (referring to the running path of the electrode wire 61 when working), the electrode wire 61 is output from the wire conveying device 6 and passes through the first guide wheel 53, the third guide wheel 73, the fourth guide wheel 74 and the second guide wheel 54 in sequence before returning to the wire conveying device 6. In the above-mentioned wire walking route, the third guide wheel 73 is arranged inside the workpiece 4 to be processed through the third arm 71, so that the electrode wire 61 comes down along the position where the electrode wire 61 needs to be opened and then winds around the third guide wheel 73 and then connects to the fourth guide wheel 74, so that the electrode wire 61 is set at the position where the workpiece 4 to be processed needs to be opened. Finally, the wire conveying device 6 drives the electrode wire 61 to move, and the workbench 2 drives the workpiece to move according to the shape of the hole to be opened in the workpiece 4 to be processed, thereby realizing opening a hole on a single side of the workpiece, which greatly simplifies the process flow of opening a hole on one side of the workpiece. The entire operation process is simple, efficient, and has an excellent user experience.
[0029] In order to make the electrode wire 61 between the third guide wheel 73 and the fourth guide wheel 74 operate more smoothly, the length of the third arm 71 is longer than the length of the fourth arm 72 .
[0030] In order to improve the structural strength of the third arm 71 and the fourth arm 72 , reinforcing ribs are provided on the third arm 71 and the fourth arm 72 .
[0031] The wire transport device 6 includes a wire storage drum and a wire transport motor. The electrode wire 61 is stored in the wire storage drum, and the wire transport motor is in transmission connection with the electrode wire 61 .
[0032] The bed 1 is also provided with a pulse power supply for providing electrical energy to the electrode wire 61 .
[0033] In order to make the whole processing process more intelligent, a control system is also included, which is used to control the whole cutting process. The control system includes a controller. The controller is used to control the movement of the workbench 2, the rotation of the clamp 3, the start and stop of the wire feeding device 6, and the action of the pulse power supply.
[0034] Embodiment 2
[0035] See also Figure 3 A wire cutting processing method applied to the above-mentioned new type of electric spark wire cutting machine tool includes the following steps: S1, punching a wire hole in the area to be processed of the workpiece 4 to be processed; S2, fixing the workpiece 4 to be processed on the workbench 2 by the clamp 3, and moving the workbench 2 so that the third arm 71 is placed in the inner cavity of the workpiece 4 to be processed; S3, setting the electrode wire 61 output from the wire feeding device 6 on the first guide wheel 53, the fourth guide wheel 74, the third guide wheel 73 and the second guide wheel 54 in sequence, and then returning to the wire feeding device 6; wherein, the connection method of the electrode wire 61 between the first guide wheel 53 and the fourth guide wheel 74 is: the electrode wire 61 is connected to the first guide wheel 53 and then connected to the fourth guide wheel 74 through the wire hole; S4, starting the pulse power supply to process the workpiece 61 to be processed.
[0036] Preferably, in the method of drilling the wire holes in the area to be processed of the workpiece 4 to be processed, the method of obtaining the area to be processed is: manually obtaining the specific position of the area to be processed through markings on the drawing.
[0037] Preferably, in order to further improve the efficiency of acquiring the area to be processed, the method for acquiring the area to be processed can also be: setting an identification mark on the area to be processed of the workpiece 4 to be processed in advance; then, providing a signal identifier, the signal identifier is controlled by a controller, and the signal identifier can identify the identification mark, when the signal identifier identifies the identification mark in the processing area, the signal identifier feeds back a signal to the controller.
[0038] Furthermore, the identification mark is specifically arranged on the peripheral side of the area to be processed of the workpiece 4 to be processed.
[0039] The identification mark can be set as a straight line here, and a straight line is set on the peripheral side of the area to be processed. When the signal identifier recognizes the straight-line identification mark, it will send a signal to the controller.
[0040] In addition, a punching device is provided, on which the signal identifier is installed. When the controller receives the signal sent by the signal identifier, it proves that the punching device is near the identification mark, that is, in the area that needs to be processed. At this time, the controller controls the punching device to move slightly inward, and then punches a hole at this position.
[0041] Due to the adoption of the above-mentioned technical solution, the technical problem of single-sided hole opening on the workpiece is effectively solved, and the operation is simple. By adding the auxiliary wire rack 7, the third arm 71 on the auxiliary wire rack 7 extends into the inner cavity of the workpiece 4 to be processed, and the third arm 71 is provided with a third guide wheel 73, which is matched with the external first guide wheel 53, the second guide wheel 54 and the fourth guide wheel 74, so that the electrode wire 61 can form a complete moving path, thereby realizing single-sided hole opening on the workpiece 4 to be processed. When the electrode wire is assembled on the above-mentioned guide wheel, the wire transport device 6 is activated, the electrode wire 61 moves, and the workpiece 4 to be processed moves under the action of the workbench 2 to cooperate with the electrode wire 61 for wire cutting; the whole process is simple to operate and efficient, and the user experience is excellent.
[0042] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.
Claims
1. A new type of wire-cut electric discharge machine, characterized in that: include: Bed; A workbench, the workbench is slidably mounted on the bed, a fixture is mounted on the workbench, and the fixture is used to clamp a workpiece to be processed; A main wire frame, the main wire frame is arranged on one side of the workbench, a wire conveying device for conveying electrode wire is provided on one side of the main wire frame, a first arm and a second arm are also provided on the main wire frame, a first guide wheel is installed on the first arm, a second guide wheel is installed on the second arm, and electrode wire is installed on the first guide wheel and the second guide wheel; An auxiliary wire frame, the auxiliary wire frame is arranged on the bed and is arranged opposite to the main wire frame, the auxiliary wire frame is provided with a third arm and a fourth arm, the third arm is used to extend into the inner cavity of the workpiece to be processed, and a third guide wheel is installed on one end of the third arm extending into the inner cavity of the workpiece to be processed, the fourth arm is arranged on one side of the third arm, and the fourth arm and the third arm are arranged opposite to each other up and down, and a fourth guide wheel is installed on the fourth arm, and the electrode wire is installed on the third guide wheel and the fourth guide wheel; Wherein, during the forward movement of the electrode wire, the electrode wire is output from the wire transport device, passes through the first guide wheel, the third guide wheel, the fourth guide wheel and the second guide wheel in sequence, and then returns to the wire transport device; The length of the third arm is longer than that of the fourth arm, and reinforcing ribs are provided on both the third arm and the fourth arm; The wire transport device comprises a wire storage drum and a wire transport motor. The electrode wire is stored in the wire storage drum, and the wire transport motor is drivingly connected to the electrode wire.
2. The novel wire-cut electric discharge machine tool according to claim 1 is characterized in that: The electrode wire is a molybdenum wire.
3. The novel wire-cut electric discharge machine tool according to claim 1 is characterized in that: The bed is also provided with a pulse power supply for providing electrical energy to the electrode wire.
4. The novel wire-cut electric discharge machine tool according to claim 1 is characterized in that: It also includes a control system, which is used to control the entire cutting process, and the control system includes a controller.
5. A wire cutting processing method applied to the new type of wire electric discharge cutting machine tool as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: S1, punching holes in the area to be processed of the workpiece; S2, fix the workpiece to be processed on the workbench by a fixture, and move the workbench so that the third arm is placed in the inner cavity of the workpiece to be processed; S3, placing the electrode wire output from the wire transport device on the first guide wheel, the fourth guide wheel, the third guide wheel and the second guide wheel in sequence, and then returning the electrode wire to the wire transport device; The connection method of the electrode wire between the first guide wheel and the fourth guide wheel is: the electrode wire is connected to the first guide wheel and then connected to the fourth guide wheel through the wire hole; S4, start the pulse power supply to process the workpiece.
6. The wire cutting method according to claim 5, characterized in that: The method for obtaining the area to be processed by punching a wire hole in the area to be processed of the workpiece is: manually obtaining the specific position of the area to be processed through markings on the drawing.
7. The wire cutting method according to claim 6, characterized in that: The method for obtaining the area to be processed can also be: setting an identification mark on the area to be processed of the workpiece in advance; then, providing a signal identifier, the signal identifier is controlled by a controller, and the signal identifier can identify the identification mark. When the signal identifier identifies the identification mark in the processing area, the signal identifier feeds back a signal to the controller.
8. The wire cutting method according to claim 7, characterized in that: The identification mark is specifically arranged on the peripheral side of the area to be processed of the workpiece to be processed.