Pay-off tensioning adjusting mechanism of multi-wire cutting machine
By using a photoelectric switch and controller in conjunction with a tension adjustment mechanism, the position of the tension wheel of the multi-wire cutting machine is automatically adjusted, which solves the problem of unstable electrode wire tension and improves cutting quality and electrode wire lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HONGYUAN EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-03-04
- Publication Date
- 2026-04-28
AI Technical Summary
During the use of a multi-wire cutting machine, the electrode wire tension cannot be kept constant, which makes the electrode wire prone to breakage, affecting the cutting quality and accuracy, and shortening the service life of the electrode wire.
A photoelectric switch is used to detect the state of the electrode wire, and the tension adjustment seat is controlled by a controller to adjust the position of the tension wheel to ensure constant electrode wire tension. Automatic adjustment is achieved using a cylinder and gear mechanism.
It effectively maintains the tension of the electrode wire, ensures cutting quality and precision, extends the service life of the electrode wire, and avoids the decline in cutting quality and surface quality caused by relaxation.
Smart Images
Figure CN224170161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting machine technology, and in particular to a wire tensioning adjustment mechanism for a multi-wire cutting machine. Background Technology
[0002] Multi-wire cutting is a new type of cutting process that uses the high-speed reciprocating motion of metal wires to bring abrasive particles into the semiconductor processing area for grinding, simultaneously cutting hard and brittle materials such as semiconductors into hundreds of thin wafers in one operation. CNC multi-wire cutting machines have gradually replaced traditional internal circular cutting and become the main method for silicon wafer cutting.
[0003] During the use of multi-wire EDM machines, the machine tool cannot implement constant tension control on the electrode wire. If the electrode wire is too tight, it is easy to break. If the electrode wire is too loose, it will affect the cutting quality. In addition, the electrode wire is used repeatedly, which will cause electrode wire wear and reduce processing accuracy and surface quality. Therefore, a wire tension adjustment mechanism for multi-wire EDM machines is proposed. Utility Model Content
[0004] The main purpose of this invention is to provide a wire tensioning adjustment mechanism for a multi-wire cutting machine. It uses a photoelectric switch to detect the state of the electrode wire and a controller to adjust the position of the tensioning wheel by controlling the tensioning adjustment seat, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides a wire feeding tension adjustment mechanism for a multi-wire cutting machine, including a back plate, a sliding seat, a tensioning wheel, and a tension adjustment seat;
[0006] The sliding seat is slidably mounted on the back plate;
[0007] The tensioning wheel is rotatably mounted on one side of the sliding seat, and a photoelectric switch is provided on one side of the tensioning wheel;
[0008] The tension adjustment seat is connected to one side of the sliding seat via a connecting rod. A pin is inserted into the tension adjustment seat, and a cylinder is connected to one side of the pin.
[0009] Based on the above technical solution, the present invention can be further improved as follows.
[0010] Furthermore, a gear is rotatably mounted on one side of the tensioning adjustment seat, the insertion post is trapezoidal in shape, and a gear portion is provided on the inclined side of the insertion post, the gear portion of the insertion post meshing with the gear.
[0011] Furthermore, the direction in which the connecting rod is positioned is perpendicular to the direction in which the insertion post is positioned.
[0012] Furthermore, the photoelectric switch is connected to an alarm.
[0013] Furthermore, the photoelectric switch and the cylinder are respectively connected to the PLC.
[0014] The beneficial effects of this utility model are as follows: This utility model provides a wire tension adjustment mechanism for a multi-wire cutting machine, which has the following advantages:
[0015] 1. This utility model incorporates a photoelectric switch. The electrode wire is wound around one side of the tensioning wheel, and the initial tension of the electrode wire is changed by the tensioning wheel, thereby ensuring that the electrode wire can perform cutting operations during use. When the electrode wire becomes loose due to factors such as vibration during use, the loose electrode wire blocks one side of the photoelectric switch during transmission. The photoelectric switch senses the wire passing by or blocking the wire and sends an alarm signal to the alarm device. The alarm device then sounds an alarm, and the normal operation of the multi-wire cutting machine is ensured by adjusting the position of the tensioning wheel.
[0016] 2. This utility model, by setting a tension adjustment seat, allows the photoelectric switch to send an obstruction signal to the controller when it senses the passing or obstruction of the wire. Upon receiving the obstruction signal, the controller sends a tightening signal to the cylinder according to the set program. When the cylinder receives the tightening signal, it drives the insert to move away from the cylinder. The gear part of the insert resists the gear, pushing the gear away from the tension wheel. This, in turn, drives the tension adjustment seat to move away from the tension wheel. The tension adjustment seat, through a connecting rod, drives the sliding seat on the back plate to move closer to the tension adjustment seat, thereby adjusting the angle between the tension wheel and the electrode wire. By adjusting the position of the tension wheel, the electrode wire can be used for cutting during use, solving the problem that an overly loose electrode wire will affect the cutting quality, processing accuracy, and surface quality.
[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the overall structure of the wire feeding and tensioning adjustment mechanism of a multi-wire cutting machine proposed in this utility model.
[0020] Figure 2This is a schematic diagram of the tensioning wheel in the wire feeding and tensioning adjustment mechanism of a multi-wire cutting machine proposed in this utility model.
[0021] In the diagram: 1. Back plate; 2. Sliding seat; 3. Tensioning wheel; 4. Photoelectric switch; 5. Tensioning adjustment seat; 6. Connecting rod; 7. Insertion post; 8. Cylinder; 9. Gear. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1-2 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is described as "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] like Figure 1-2 As shown, this utility model provides a wire feeding tension adjustment mechanism for a multi-wire cutting machine, including a back plate 1, a sliding seat 2, a tensioning wheel 3, and a tension adjustment seat 5;
[0026] The sliding seat 2 is slidably mounted on the back plate 1;
[0027] The tensioning wheel 3 is rotatably mounted on one side of the sliding seat 2, and a photoelectric switch 4 is provided on one side of the tensioning wheel 3. The photoelectric switch 4 is connected to an alarm.
[0028] The tension adjustment seat 5 is connected to one side of the sliding seat 2 via a connecting rod 6. A pin 7 is inserted into the tension adjustment seat 5. The direction of the connecting rod 6 is perpendicular to the direction of the pin 7. A cylinder 8 is connected to one side of the pin 7. The cylinder 8 is fixedly installed on the back plate 1. A gear 9 is rotatably installed on one side of the tension adjustment seat 5. The pin 7 is trapezoidal in shape. A gear part is provided on the inclined side of the pin 7. The gear part of the pin 7 meshes with the gear 9.
[0029] In this embodiment, the photoelectric switch 4 and the cylinder 8 are respectively connected to the PLC, and the photoelectric switch 4 and the cylinder 8 can be controlled by the terminal.
[0030] In this embodiment, the electrode wire is wound around one side of the tensioning wheel 3. The tensioning wheel 3 changes the initial tension of the electrode wire, thereby ensuring that the electrode wire can perform cutting operations during use. When the electrode wire becomes loose due to factors such as vibration during use, the loose electrode wire blocks one side of the photoelectric switch 4 during transmission. The photoelectric switch 4 senses the wire passing by or blocking the wire and sends an alarm signal to the alarm device. The alarm device then sounds an alarm, and the operator adjusts the position of the tensioning wheel 3 to ensure the normal operation of the multi-wire cutting machine.
[0031] Furthermore, when the photoelectric switch 4 senses the passing or obstruction of the wire, it sends an obstruction signal to the PLC. After receiving the obstruction signal, the controller sends a tightening signal to the cylinder 8 according to the set program. When the cylinder 8 receives the tightening signal, it drives the insert 7 to move away from the cylinder 8. The gear part of the insert 7 resists the gear 9. The insert 7 pushes the gear 9 to move away from the tension wheel 3, which in turn drives the tension adjustment seat 5 to move away from the tension wheel 3. The tension adjustment seat 5 drives the sliding seat 2 to move on the back plate 1 towards the side closer to the tension adjustment seat 5 through the connecting rod 6, thereby adjusting the angle between the tension wheel 3 and the electrode wire. By adjusting the position of the tension wheel 3, it is ensured that the electrode wire can perform cutting operations during use, solving the problem that the electrode wire is too loose, which will affect the cutting quality, processing accuracy and surface quality reduction.
[0032] Preferably, the tensioning wheel 3 is provided with an oil reservoir and a brush. When the electrode wire is driven on the tensioning wheel 3, the tensioning wheel 3 applies oil to the electrode wire, thereby improving the service life of the electrode wire.
[0033] The working principle is as follows:
[0034] When photoelectric switch 4 senses the passing or obstruction of the wire, it sends an alarm signal to the alarm device, which then sounds an alarm. Simultaneously, photoelectric switch 4 sends an obstruction signal to the PLC. Upon receiving the obstruction signal, the controller sends a tightening signal to cylinder 8 according to the set program. When cylinder 8 receives the tightening signal, it drives the insert 7 to move away from the cylinder 8. The gear part of insert 7 resists the gear 9, pushing the gear 9 away from the tension wheel 3. This, in turn, drives the tension adjustment seat 5 to move away from the tension wheel 3. The tension adjustment seat 5, through the connecting rod 6, drives the sliding seat 2 to move closer to the tension adjustment seat 5 on the back plate 1, thereby adjusting the angle between the tension wheel 3 and the electrode wire. By adjusting the position of the tension wheel 3, the electrode wire can be used for cutting during use, solving the problem that a loose electrode wire will affect the cutting quality, processing accuracy, and surface quality. After adjustment, the controller controls the alarm device to deactivate.
[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A wire tensioning adjustment mechanism for a multi-wire cutting machine, characterized in that, include: Back panel (1); A sliding seat (2) is slidably mounted on a back plate (1); The tension wheel (3) is rotatably mounted on one side of the sliding seat (2), and a photoelectric switch (4) is provided on one side of the tension wheel (3); The tension adjustment seat (5) is connected to one side of the sliding seat (2) via a connecting rod (6). A plug (7) is inserted into the tension adjustment seat (5), and a cylinder (8) is connected to one side of the plug (7).
2. The wire tensioning adjustment mechanism for a multi-wire cutting machine according to claim 1, characterized in that, A gear (9) is rotatably mounted on one side of the tension adjustment seat (5). The insert (7) is trapezoidal in shape. A gear part is provided on the slope side of the insert (7). The gear part of the insert (7) meshes with the gear (9).
3. The wire tensioning adjustment mechanism for a multi-wire cutting machine according to claim 1, characterized in that, The direction in which the connecting rod (6) is set is perpendicular to the direction in which the insert (7) is set.
4. The wire tensioning adjustment mechanism for a multi-wire cutting machine according to claim 1, characterized in that, The photoelectric switch (4) is connected to an alarm.
5. The wire tensioning adjustment mechanism for a multi-wire cutting machine according to claim 1, characterized in that, The photoelectric switch (4) and the cylinder (8) are respectively connected to the PLC.