Wire-electrode cutting workpiece falling prevention device and cutting machine
By designing a workpiece anti-tipping device for wire EDM, and using supports and baffles to limit workpiece displacement, the problem of workpiece tipping during multi-wire EDM of silicon wafers was solved, achieving high-efficiency production and low-cost processing.
Patent Information
- Application Number
- CN202423108395.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-16
AI Technical Summary
During the multi-wire silicon wafer cutting process, if the workpiece size is too small, it is easy to cause the wafer to tip over, resulting in accidents such as wire breakage, fragmentation, or damage to the rollers.
A device for preventing workpiece tipping during wire EDM is designed, comprising a support, an adjusting rod, and a baffle assembly. The workpiece displacement in the wire routing space is restricted by the first and second direction baffle components to prevent the workpiece from tipping over and tipping.
It effectively prevents workpieces from tipping over, reduces waste, improves production efficiency, reduces accidents, and lowers production costs.
Smart Images
Figure CN223545490U_ABST
Abstract
Description
Technical Field
[0001] This utility model is applicable to the field of silicon wafer processing, and in particular relates to a wire-cut workpiece anti-tipping device and a cutting machine. Background Technology
[0002] Multi-wire silicon wafer dicing is one of the world's most advanced silicon wafer processing technologies. It differs from traditional saw blade and abrasive wheel cutting methods, as well as advanced laser cutting and internal circular cutting. Its principle involves a high-speed moving steel wire driving a cutting blade attached to the wire to rub against the silicon ingot, thus achieving the cutting effect. Throughout the process, the steel wire is guided by more than a dozen guide rollers, forming a wire mesh on the main roller, while the workpiece is fed by the rising worktable. Compared to other technologies, multi-wire silicon wafer dicing offers advantages such as high efficiency, high throughput, and high precision, making it the most widely used silicon wafer dicing technology.
[0003] When a multi-wire cutting (orthogonal cutting) machine is operating, the workpiece is typically bonded to a slab with adhesive, and the slab is mounted on a worktable support. The worktable rises to feed the workpiece. When the workpiece size is small, such as less than 1mm, the adhesive bonding area is very small. In this case, when the workpiece is finished, it is more likely to tip over. Tipping over can easily cause the wire mesh to get caught, leading to more serious accidents such as wire breakage, fragmentation, or damage to the rollers. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a wire EDM workpiece anti-tipping device and a wire EDM machine.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] In a first aspect, a wire EDM workpiece anti-tipping device includes a support, an adjusting rod, and a baffle assembly. The support extends along the height direction, the adjusting rod is connected to the support, and the adjusting rod extends along a first direction. A wire EDM routing space is formed below the adjusting rod. The baffle assembly is disposed on the adjusting rod and is used to confine the workpiece within the routing space. The baffle assembly includes a first-direction baffle component and a second-direction baffle component. The first-direction baffle component is used to limit the displacement of the workpiece in the routing space along the first direction, and the second-direction baffle component is used to limit the displacement of the workpiece in the routing space along the second direction.
[0007] In conjunction with the first aspect, in some implementations of the first aspect, the first directional blocking component includes a first baffle and a second baffle, the first baffle and the second baffle being spaced apart from the adjusting rod along a first direction, and a first directional gap defining the displacement of the workpiece along the first direction being formed between the first baffle and the second baffle.
[0008] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the second directional blocking component includes a first stop and a second stop, both of which extend along a first direction and are connected between the first baffle and the second baffle, and a second directional gap is formed between the first stop and the second stop to limit the displacement of the workpiece along a second direction.
[0009] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the first baffle and the second baffle are provided with baffle rod insertion holes facing each other along the first direction, and the first baffle rod and the second baffle rod are inserted into the baffle rod insertion holes of the first baffle and the second baffle along the first direction.
[0010] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the first baffle and the second baffle are provided with a plurality of stop bar insertion holes along the second direction, and the first baffle and the second baffle are provided with a plurality of stop bar insertion holes along the height direction.
[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the first baffle and the second baffle can be adjusted in position along the first direction on the adjusting rod.
[0012] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the adjusting rod includes an adjusting screw with external threads, the first baffle and the second baffle are provided with mounting holes connected to the adjusting screw, and the adjusting screw is provided with a locking nut for locking the first baffle and the second baffle.
[0013] In conjunction with the first aspect and the above-described implementations, in some implementations of the first aspect, the adjusting screw includes a first adjusting screw and a second adjusting screw, the first baffle is connected to the first adjusting screw and the second adjusting screw, and the second baffle is connected to the first adjusting screw and the second adjusting screw.
[0014] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the support includes a base and a height adjustment plate, the adjustment rod is disposed on the height adjustment plate, the base is provided with a guide groove extending in the height direction, and the height adjustment plate is installed on the base by fasteners disposed on the guide groove.
[0015] In a second aspect, a cutting machine includes a wire-cut workpiece anti-tipping device as described in any implementation of the first aspect.
[0016] One of the above technical solutions has at least one of the following advantages or beneficial effects: In operation, the workpiece is fixed with adhesive and fed along its height. The workpiece is then cut normally on the wire EDM machine. When the workpiece reaches a certain height, the anti-tipping device is positioned, placing the workpiece in the wire-running space below the adjusting rod. A baffle assembly is positioned on top of the workpiece, thereby limiting the workpiece's displacement along the first direction in the wire-running space through the first-direction baffle component and limiting its displacement along the second direction through the second-direction baffle component. The wire EDM machine continues to operate until the workpiece is finished. This technical solution effectively prevents workpiece tipping, avoids damage to the workpiece, and has the advantages of simple structure and reliable operation. It has achieved good results in practical production applications, effectively reducing workpiece scrap, improving production efficiency, reducing accidents, and lowering production costs.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a schematic diagram of one embodiment of the present invention. Detailed Implementation
[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0021] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0022] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.
[0023] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.
[0024] in, Figure 1 The reference direction coordinate system of this utility model embodiment is given below, in conjunction with Figure 1 The embodiments of this utility model will be described in the directions shown.
[0025] See Figure 1 This utility model provides a wire EDM workpiece anti-tipping device, including a support 100, an adjusting rod 200, and a baffle assembly 300. The support 100 extends along the height direction, and the adjusting rod 200 is connected to the support 100 and extends along a first direction. A wire cutting space 400 is formed below the adjusting rod 200, through which the wire of the cutting machine passes to perform wire cutting on the workpiece 500 located in the wire cutting space 400. The support 100 and the adjusting rod 200 provide support for the baffle assembly 300, which is disposed on the adjusting rod 200. The baffle assembly 300 is used to confine the workpiece 500 within the wire cutting space 400. The baffle assembly 300 includes a first-direction baffle component and a second-direction baffle component. The first-direction baffle component restricts the displacement of the workpiece 500 in the wire cutting space 400 along the first direction, and the second-direction baffle component restricts the displacement of the workpiece 500 in the wire cutting space 400 along the second direction. The baffle assembly 300 blocks the workpiece 500 being processed from the top through the first direction baffle component and the second direction baffle component, so as to prevent the workpiece 500 from tipping over or falling over during the wire cutting process.
[0026] See Figure 1In operation, the workpiece 500 is fixed with adhesive and fed along the height direction. The workpiece 500 is then cut normally on the wire EDM machine. When the workpiece 500 reaches a certain height, the anti-tipping device for the wire-cut workpiece is positioned, for example... Figure 1 In this process, the support 100 of the anti-tipping device for wire-cut workpieces is installed on the worktable tray 600, so that the workpiece 500 is located in the wire routing space 400 below the adjusting rod 200. The baffle assembly 300 is set on top of the workpiece 500, thereby restricting the displacement of the workpiece 500 in the wire routing space 400 along the first direction through the first direction baffle assembly, and restricting the displacement of the workpiece 500 in the wire routing space 400 along the second direction through the second direction baffle assembly. The wire cutting machine continues to run until the workpiece 500 is processed. The technical solution of this utility model can effectively prevent the workpiece 500 from tipping over without damaging the workpiece 500. It has the advantages of simple structure and reliable operation. It has achieved good results in actual production applications, effectively reducing the scrap of the workpiece 500, improving production efficiency, reducing accidents, and reducing production costs.
[0027] In some embodiments, see Figure 1 The first-direction blocking component includes a first baffle 301 and a second baffle 302. The first baffle 301 and the second baffle 302 are spaced apart from the adjusting rod 200 along a first direction, forming a first-direction gap between the first baffle 301 and the second baffle 302 to limit the displacement of the workpiece 500 along the first direction. The first baffle 301 and the second baffle 302 are used to block the workpiece 500 along the first direction to prevent the workpiece 500 from tilting or falling over in the first direction during the cutting process.
[0028] Further, see Figure 1 The first baffle 301 and the second baffle 302 extend a certain length along the first direction. The second direction blocking component includes a first stop 303 and a second stop (not shown in the figure). Both the first stop 303 and the second stop extend along the first direction and are connected between the first baffle 301 and the second baffle 302. A second direction interval is formed between the first stop 303 and the second stop, which limits the displacement of the workpiece 500 along the second direction. The first stop 303 and the second stop are used to block the workpiece 500 along the second direction, preventing the workpiece 500 from tilting or falling over in the second direction during the cutting process.
[0029] See Figure 1 In this embodiment, the first baffle 301, the second baffle 302, the first stop bar 303 and the second stop bar define a rectangular limiting space from a top view. The top of the workpiece 500 can be located in this limiting space, and the anti-tipping effect is further achieved through the entire wire cutting workpiece anti-tipping device.
[0030] It is understood that the second direction partition component can also be formed by providing a side plate or a limiting pin extending along the first direction on the first baffle 301 and the second baffle 302.
[0031] The first stop lever 303 and the second stop lever can be connected to the first baffle 301 and the second baffle 302 by means of slots, snaps, threads, etc., as described in some embodiments. Figure 1 The first baffle 301 and the second baffle 302 are provided with baffle rod insertion holes 305 facing each other along the first direction. The first baffle rod 303 and the second baffle rod are inserted into the baffle rod insertion holes 305 of the first baffle 301 and the second baffle 302 along the first direction. In this embodiment, the first baffle rod 303 and the second baffle rod are connected to the first baffle 301 and the second baffle 302 by plugging, which is convenient for assembly.
[0032] Further, see Figure 1 The first baffle 301 and the second baffle 302 are provided with multiple baffle rod insertion holes 305 along the second direction, and the first baffle 301 and the second baffle 302 are provided with multiple baffle rod insertion holes 305 along the height direction. In this embodiment, the first baffle rod 303 and the second baffle rod can be adjusted according to the workpiece 500 of different sizes, which can adapt to the anti-tipping requirements of workpieces 500 of different sizes, increasing adaptability and improving production efficiency. That is, an adjustable blocking structure is adopted, which can achieve universal anti-tipping requirements.
[0033] In some embodiments, see Figure 1 The first baffle 301 and the second baffle 302 can be adjusted in the first direction on the adjusting rod 200. That is, the first baffle 301 and the second baffle 302 can be adjusted according to the workpiece 500 of different sizes, which can adapt to the anti-tipping requirements of workpiece 500 of different sizes, increase adaptability and improve production efficiency.
[0034] The first baffle 301 and the second baffle 302 can be adjusted in position along the first direction by means of setting teeth, pins, etc. In some embodiments, see Figure 1 The adjusting rod 200 includes an adjusting screw with external threads. A first baffle 301 and a second baffle 302 have mounting holes for connecting to the adjusting screw. A locking nut 201 on the adjusting screw locks the first baffle 301 and the second baffle 302. When it is necessary to adjust the position of the first baffle 301 and the second baffle 302 on the adjusting rod 200, rapid stepless adjustment can be achieved by rotating the locking nut 201. This provides higher adjustment accuracy and can adapt to the anti-tipping requirements of workpieces 500 of different sizes, increasing adaptability and improving production efficiency.
[0035] One or more adjusting screws may be provided, for example, in some embodiments, see [reference needed]. Figure 1The adjusting screw includes a first adjusting screw 202 and a second adjusting screw 203. A first baffle 301 is connected to the first adjusting screw 202 and the second adjusting screw 203, and a second baffle 302 is also connected to the first adjusting screw 202 and the second adjusting screw 203. The first adjusting screw 202 and the second adjusting screw 203 are arranged in parallel, providing multi-point support for the first baffle 301 and the second baffle 302, ensuring their stability.
[0036] In some embodiments, see Figure 1 The support 100 includes a base 101 and a height adjustment plate 102. An adjustment rod 200 is disposed on the height adjustment plate 102. The base 101 has a guide groove 103 extending along the height direction. The height adjustment plate 102 is mounted on the base 101 by fasteners 104 disposed on the guide groove 103. The height adjustment plate 102 can be adjusted in height along the height direction via the guide groove 103 and the fasteners 104. The adjustment rod 200 is disposed on the height adjustment plate 102, thereby realizing the height adjustment of the partition assembly 300. This embodiment can adapt to the anti-tipping requirements of workpieces 500 with different height dimensions, increasing adaptability and improving production efficiency.
[0037] Understandably, one or two supports 100 can be provided. When one support 100 is provided, the support 100 is supported at one end of the adjusting rod 200, and the adjusting rod 200 provides support for the partition assembly 300 in a cantilever beam manner. When two supports 100 are provided, the supports 100 are supported at both ends of the adjusting rod 200, and the supports 100 and the adjusting rod 200 provide support for the partition assembly 300 in a gantry manner.
[0038] An embodiment of this utility model also provides a cutting machine, including the anti-tipping device for wire-cut workpieces in any of the above embodiments.
[0039] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0040] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A device for preventing workpiece tipping during wire cutting, characterized in that, The device includes a support, an adjusting rod, and a baffle assembly. The support extends along the height direction, the adjusting rod is connected to the support, and the adjusting rod extends along a first direction. A wire cutting routing space is formed below the adjusting rod. The baffle assembly is disposed on the adjusting rod and is used to confine the workpiece within the routing space. The baffle assembly includes a first-direction baffle component and a second-direction baffle component. The first-direction baffle component is used to limit the displacement of the workpiece in the routing space along the first direction, and the second-direction baffle component is used to limit the displacement of the workpiece in the routing space along the second direction.
2. The anti-tipping device for wire-cut workpieces according to claim 1, characterized in that, The first directional blocking component includes a first baffle and a second baffle, which are spaced apart from the adjusting rod along a first direction, and a first directional gap is formed between the first baffle and the second baffle to limit the displacement of the workpiece along the first direction.
3. The anti-tipping device for wire-cut workpieces according to claim 2, characterized in that, The second directional blocking component includes a first stop and a second stop, both of which extend along a first direction and are connected between the first baffle and the second baffle. A second directional gap is formed between the first stop and the second stop, which limits the displacement of the workpiece along a second direction.
4. The anti-tipping device for wire-cut workpieces according to claim 3, characterized in that, The first baffle and the second baffle are provided with stop rod insertion holes facing each other along the first direction, and the first stop rod and the second stop rod are inserted into the stop rod insertion holes of the first baffle and the second baffle along the first direction.
5. The anti-tipping device for wire-cut workpieces according to claim 4, characterized in that, The first baffle and the second baffle are provided with a plurality of stop bar insertion holes along the second direction, and the first baffle and the second baffle are provided with a plurality of stop bar insertion holes along the height direction.
6. The anti-tipping device for wire-cut workpieces according to claim 2, characterized in that, The first baffle and the second baffle can be adjusted in position along the first direction on the adjusting rod.
7. The anti-tipping device for wire-cut workpieces according to claim 6, characterized in that, The adjusting rod includes an adjusting screw with external threads, the first baffle and the second baffle are provided with mounting holes connected to the adjusting screw, and the adjusting screw is provided with a locking nut for locking the first baffle and the second baffle.
8. The anti-tipping device for wire-cut workpieces according to claim 7, characterized in that, The adjusting screw includes a first adjusting screw and a second adjusting screw, the first baffle is connected to the first adjusting screw and the second adjusting screw, and the second baffle is connected to the first adjusting screw and the second adjusting screw.
9. The anti-tipping device for wire-cut workpieces according to claim 1, characterized in that, The support includes a base and a height adjustment plate. The adjustment rod is disposed on the height adjustment plate. The base is provided with a guide groove extending in the height direction. The height adjustment plate is installed on the base by fasteners disposed in the guide groove.
10. A cutting machine, characterized in that, The device for preventing wire-cut workpiece from tipping over, as described in any one of claims 1 to 9.