Wire breakage detection device and wire cutting machine

Abstract

The application provides a broken line detection device and a wire cutting machine, and belongs to the technical field of crystal bar processing. The application solves the problem that the prior art cannot quickly determine the broken line position. The application comprises a bearing assembly, the bearing assembly comprises at least two wire bearing parts, the wire bearing parts are used for bearing a detection line, a detection area is formed between the at least two wire bearing parts, and the detection area is used for arranging the detection line; and a multi-dimensional force sensor is connected with the wire bearing parts to obtain the pulling force of the detection line in multiple directions on the wire bearing parts. The application adds the multi-dimensional force sensor, so that the force change values in multiple directions can be obtained. According to the ratio of the change values in each direction, the direction in which the broken line is thrown into the detection area can be inferred, so as to assist the operator to quickly find the broken line, thereby facilitating subsequent wire welding or wire withdrawal operation, and effectively saving the operation time after the wire is broken.

Description

Technical Field

[0001] This application belongs to the field of crystal rod processing technology, and specifically relates to a wire breakage detection device and a wire cutting machine. Background Technology

[0002] Wire cutting machines are commonly used for cutting many materials. Multi-wire cutting machines are frequently used for cutting materials such as silicon, sapphire, and silicon carbide. Their working principle primarily involves the main roller driving the cutting wire at high speed to create friction against the material, thus achieving cutting. However, due to this working principle, wire breakage is a potential problem for this type of wire cutting machine.

[0003] In traditional technologies, mechanical wire breakage detection primarily relies on normally closed proximity switches. When the cutting wire on the roller breaks due to processing or other factors, the corresponding weight block falls and contacts the normally closed proximity switch, thus detecting the wire breakage and stopping the cutting machine. Inductive wire breakage detection, on the other hand, typically uses resistance or voltage detection as the basis for circuit feedback.

[0004] However, due to the small diameter of the cutting wire and the presence of cutting dust in the cutting environment, it is difficult to effectively monitor the location of the broken wire using visual inspection alone, thus requiring operators to spend a lot of time searching for the broken wire.

[0005] Based on the above, the technical problem to be solved by this application is: how to quickly determine the location of the broken wire. Utility Model Content

[0006] The purpose of this application is to address the aforementioned problems in the prior art by proposing a wire breakage detection device and a wire cutting machine, which solves the problem that the prior art is unable to quickly determine the location of the wire breakage and saves time in obtaining the location of the wire breakage.

[0007] The objective of this application can be achieved through the following technical solution: a wire breakage detection device, comprising: a carrier component, the carrier component including at least two wire carriers, the wire carriers being used to carry a detection wire, and a detection area being formed between the at least two wire carriers, the detection area being used to set the detection wire; a multi-dimensional force sensor, the multi-dimensional force sensor being connected to the wire carriers to obtain the tensile force of the detection wire on the wire carriers in multiple directions. It is understood that by adding a multi-dimensional force sensor, force change values ​​in multiple directions can be obtained. Based on the ratio of the change values ​​in each direction, the direction in which the broken wire was thrown to the detection area can be inferred, thereby assisting the operator in quickly locating the broken wire, facilitating subsequent wire soldering or wire removal operations, and effectively saving operation time after a wire breakage.

[0008] In the aforementioned wire breakage detection device, the wire carrier is provided with a mounting part, and a movable area is formed on the side of the mounting part away from the detection area, allowing the detection wire to move. For example, the mounting part is in the shape of a hook or a loop, and the hook or loop can form a movable area on the side away from the detection area, providing a certain amount of space for movement when the detection wire is swung by the cutting wire, or when the tension of the detection wire needs to be adjusted.

[0009] The aforementioned wire breakage detection device further includes a tensioning assembly, which comprises: a fixing member disposed outside the detection area for fixing the end of the detection wire; and a movable member connected to the fixing member, the movable member having a degree of freedom of movement to move the fixing member away from the wire carrier. For example, the fixing member can fix the detection wire by clamping, adsorption, or adhesive methods, while the movable member can move the fixing member away from the wire carrier, thereby adjusting the wire tension. When the detection wire is taut, more accurate detection data can be obtained, improving detection accuracy.

[0010] In the aforementioned wire breakage detection device, the fixing component includes: a stud fixed to the movable component; at least two wire clamping rings sleeved on the stud, with a receiving groove formed between the at least two wire clamping rings for receiving the end of the detection wire; and a bolt disposed on the stud away from the movable component, the bolt being threadedly connected to the stud to act on the wire clamping rings. It is understood that the end of the detection wire can be positioned within the receiving groove between the two wire clamping rings. When the bolt rotates along the thread, until the receiving groove between the two wire clamping rings is compressed to its minimum width, the end of the detection wire is clamped and fixed.

[0011] In the aforementioned wire breakage detection device, the tensioning assembly further includes a driving component. The driving component has an output shaft that acts on the movable component to drive its movement. For example, the driving component and the movable component can form a lead screw, with the driving component driving the output shaft to rotate. The output shaft and the movable component are threadedly connected, and the movable component's movement can be restricted horizontally, thus allowing it to move up and down along the thread. For example, the driving component can also be other linear drive mechanisms, such as a cylinder.

[0012] The aforementioned wire breakage detection device further includes a guide assembly, which comprises: a guide base plate fixedly connected to the driving member; a guide shaft passing through the guide base plate and the movable member, the guide shaft being parallel to the output shaft; and a guide bearing disposed between the movable member and the guide shaft, the guide bearing being fixedly connected to the movable member and axially movably connected to the guide shaft. It can be understood that by setting the wire base plate to fix the position of the guide shaft, the guide bearing moves axially along the guide shaft, thereby the movement of the movable member connected to the guide bearing is also guided by the guide shaft.

[0013] In the aforementioned wire breakage detection device, a guide shaft is further provided between the wire carrier and the fixing member. There are at least two guide shafts, forming a wire gap between them, which is used for the passage of the detection wire. It is understood that the end of the detection wire is held by the fixing member, and after passing through the wire gap between the two guide shafts, the detection wire is then carried by the wire carrier.

[0014] In the aforementioned wire breakage detection device, an eccentric wheel is fitted onto the conductor shaft. The eccentric wheel rotates to adjust the size of the gap between the conductors. It can be understood that by setting an eccentric wheel on the conductor shaft, when the end of the detection wire is moved by the fixed and movable parts, the detection wire moves synchronously, causing friction to drive the eccentric wheel to rotate. The eccentric wheels on the two conductor shafts are configured such that their relatively convex sides can be brought closer together under force, thus the two eccentric wheels abut against each other to clamp the detection wire, preventing the detection wire from slipping back and becoming untaut.

[0015] In the aforementioned wire breakage detection device, the supporting component further includes a mounting bracket, on which the wire carrier is mounted. The mounting bracket has a degree of freedom of movement to adjust the position of the detection area. It is understood that the mounting bracket is used to install in the wire cutter near the main roller. The main roller is generally surrounded by a cutting wire mesh. After the cutting wire breaks, it is easily thrown into the detection area due to inertia. By moving and adjusting the position of the mounting bracket, the distance between the detection area and the main roller can be adjusted, thereby adjusting the detection range.

[0016] Another object of this application is to provide a wire cutting machine, including the wire breakage detection device as described above. It is understood that the wire breakage detection device is disposed near the main roller of the wire cutting machine, thereby enabling the detection of whether the cutting wire mesh is broken.

[0017] Compared with the prior art, this application has the following beneficial effects:

[0018] This application adds a multi-dimensional force sensor, which can obtain force change values ​​in multiple directions. Based on the ratio of the change values ​​in each direction, the direction in which the broken wire was thrown to the detection area can be inferred, thereby assisting operators in quickly locating the broken wire and facilitating subsequent wire bonding or removal operations, effectively saving operation time after the wire breakage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the wire breakage detection device of this application;

[0020] Figure 2 This is a partial structural schematic diagram of the wire breakage detection device of this application;

[0021] Figure 3 yes Figure 2 Enlarged structural diagram of region A in the middle;

[0022] Figure 4 This is a schematic diagram of the tensioning assembly of this application;

[0023] Figure 5 This is a partial structural schematic diagram of the wire cutting machine of this application;

[0024] In the diagram, 100 is the load-bearing component; 110 is the wire carrier; 111 is the mounting part; Q is the detection area; X is the detection line; H is the moving area; 120 is the mounting bracket; 200 is the multi-dimensional force sensor; 300 is the tensioning component; 310 is the fixing component; 311 is the stud; 312 is the wire pressure ring; C is the receiving groove; 313 is the bolt; 320 is the moving part; 330 is the driving component; 331 is the output shaft; 400 is the guide component; 410 is the guide base plate; 420 is the guide shaft; 430 is the guide bearing; 500 is the wire shaft; 510 is the eccentric wheel; J is the wire gap; 600 is the cutting device; and 610 is the main roller. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0031] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 The wire breakage detection device of this application includes a support component 100 and a multi-dimensional force sensor 200. The support component 100 includes at least two wire carriers 110, which are used to carry the detection wire X. A detection area Q is formed between the at least two wire carriers 110, and the detection area Q is used to set the detection wire X. The multi-dimensional force sensor 200 is connected to the wire carriers 110 to obtain the tensile force of the detection wire X on the wire carriers 110 in multiple directions. It can be understood that by adding the multi-dimensional force sensor 200, force change values ​​in multiple directions can be obtained. Based on the ratio of the change values ​​in each direction, the direction in which the broken wire is thrown to the detection area Q can be inferred, thereby assisting the operator to quickly find the broken wire, which facilitates subsequent wire soldering or wire removal operations and effectively saves operation time after the wire breakage. For example, the multi-dimensional force sensor 200 is a two-dimensional force sensor, and the number of two-dimensional force sensors is the same as the number of wire carriers 110, thereby improving the detection accuracy. For example, the multi-dimensional force sensor 200 can also be a three-dimensional force sensor or a six-dimensional force sensor.

[0032] See Figure 3 In some embodiments, the wire carrier 110 is provided with a mounting portion 111, and a movable area H is formed on the side of the mounting portion 111 opposite to the detection area Q, allowing the detection wire X to move. For example, the mounting portion 111 is in the shape of a barb or a loop, and the barb or loop can form a movable area H on the side opposite to the detection area Q, providing a certain amount of space for movement when the detection wire X is swung by the cutting wire, or when the tension of the detection wire X needs to be adjusted.

[0033] See Figure 2In some embodiments, the wire breakage detection device of this application further includes a tensioning component 300. The tensioning component 300 includes a fixing member 310 and a movable member 320. The fixing member 310 is disposed outside the detection area Q and is used to fix the end of the detection line X. The movable member 320 is connected to the fixing member 310 and has a degree of freedom of movement to move the fixing member 310 away from the wire carrier 110. For example, the fixing member 310 can fix the detection line X by clamping, adsorption, or adhesive. The movable member 320 can move the fixing member 310 away from the wire carrier 110, thereby adjusting the wire tension. When the detection line X is taut, more accurate detection data can be obtained, improving detection accuracy.

[0034] See Figure 2 In some embodiments, the tensioning assembly 300 further includes a drive member 330, which has an output shaft 331 that acts on a movable member 320 to drive the movable member 320 to move. Exemplarily, the drive member 330 and the movable member 320 can form a lead screw, with the drive member 330 driving the output shaft 331 to rotate. The output shaft 331 and the movable member 320 are threadedly connected, and the movable member 320 can be horizontally restricted in its movement, thereby moving up and down along the thread. Exemplarily, the drive member 330 can also be other linear drive mechanisms, such as a cylinder.

[0035] See Figure 2 In some embodiments, the wire breakage detection device of this application further includes a guide assembly 400. The guide assembly 400 includes a guide base plate 410, a guide shaft 420, and a guide bearing 430. The guide base plate 410 is fixedly connected to the drive member 330. The guide shaft 420 passes through the guide base plate 410 and the movable member 320. The guide shaft 420 is arranged parallel to the output shaft 331. The guide bearing 430 is disposed between the movable member 320 and the guide shaft 420, and is fixedly connected to the movable member 320. The guide bearing 430 and the guide shaft 420 are axially movably connected. It can be understood that by setting the wire base plate to fix the position of the guide shaft 420, the guide bearing 430 moves axially along the guide shaft 420, so that the movement of the movable member 320 connected to the guide bearing 430 is also guided by the guide shaft 420.

[0036] See Figure 2 and Figure 4 In some embodiments, a wire spool 500 is further provided between the wire carrier 110 and the fixing member 310. There are at least two wire spools 500, and a wire gap J is formed between the at least two wire spools 500. The wire gap J is used for the detection wire X to pass through. It can be understood that the end of the detection wire X is clamped by the fixing member 310, and after the detection wire X passes through the wire gap J between the two wire spools 500, it is then carried by the wire carrier 110.

[0037] Continue to refer to Figure 2 and Figure 4 In some embodiments, an eccentric wheel 510 is sleeved on the guide shaft 500. The eccentric wheel 510 rotates to adjust the size of the guide gap J. It can be understood that by providing an eccentric wheel 510 on the guide shaft 500, when the end of the detection line X is moved by the fixing member 310 and the movable member 320, the detection line X moves synchronously, thereby frictionally driving the eccentric wheel 510 to rotate. The eccentric wheels 510 on the two guide shafts 500 are configured such that their relatively convex sides can be brought closer to each other under force, so that the two eccentric wheels 510 abut against each other to clamp the detection line X, preventing the detection line X from retracting and becoming untensioned.

[0038] See Figure 4 In some embodiments, the fixing member 310 includes a stud 311, a clamping ring 312, and a bolt 313. The stud 311 is fixed to the movable member 320. There are at least two clamping rings 312, which are sleeved on the stud 311. A receiving groove C is formed between the at least two clamping rings 312. The receiving groove C is used to receive the end of the test line X. The bolt 313 is disposed on the side of the stud 311 opposite to the movable member 320. The bolt 313 is threadedly connected to the stud 311 to act on the clamping ring 312. It is understood that the end of the test line X can be configured in the receiving groove C between the two clamping rings 312. When the bolt 313 rotates along the thread until the receiving groove C between the two clamping rings 312 is squeezed to its minimum width, the end of the test line X is clamped and fixed.

[0039] See Figure 1 and Figure 5 In some embodiments, the support assembly 100 further includes a mounting bracket 120, on which a wire carrier 110 is provided. The mounting bracket 120 has a degree of freedom of movement to adjust the position of the detection area Q. It is understood that the mounting bracket 120 is used to install in the wire cutter near the main roller 610. The main roller 610 is generally surrounded by a cutting wire mesh. After the cutting wire breaks, it is easily thrown into the detection area Q due to inertia. By moving and adjusting the position of the mounting bracket 120, the distance between the detection area Q and the main roller 610 can be adjusted, thereby adjusting the detection range.

[0040] Beneficial effects:

[0041] This application adds a multi-dimensional force sensor 200, which can obtain force change values ​​in multiple directions. Based on the ratio of the change values ​​in each direction, the direction in which the broken wire was thrown to the detection area Q can be inferred, thereby assisting the operator to quickly find the broken wire and facilitating subsequent wire soldering or wire removal operations, effectively saving operation time after the wire breakage. By setting an eccentric wheel 510 on the wire shaft 500, when the end of the detection wire X is driven to move by the fixing part 310 and the moving part 320, the detection wire X moves synchronously, thereby friction driving the eccentric wheel 510 to rotate. The eccentric wheels 510 on the two wire shafts 500 are configured such that their relatively convex sides can be brought closer to each other under force, so that the two eccentric wheels 510 abut against each other to clamp the detection wire X, preventing the detection wire X from going back and not being taut.

[0042] See Figure 5 The wire cutting machine of this application (not shown) includes a wire breakage detection device and a cutting device 600. The cutting device 600 includes a main roller 610, on which a cutting wire mesh is surrounded. It is understood that by arranging the wire breakage detection device on one side of the cutting device 600, it is convenient to detect whether the cutting wire mesh is broken.

[0043] The specific embodiments described herein are merely illustrative examples of the spirit of this application. Those skilled in the art to which this application pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this application or exceeding the scope defined by the appended claims.

Claims

1. A wire breakage detection device, characterized in that, include: A carrier component (100) includes at least two wire carriers (110), each wire carrier (110) is used to carry a detection line (X), and a detection area (Q) is formed between the at least two wire carriers (110), the detection area (Q) being used to set the detection line (X); A multi-dimensional force sensor (200) is connected to the wire carrier (110) to obtain the tension of the detection line (X) on the wire carrier (110) in multiple directions.

2. The wire breakage detection device according to claim 1, characterized in that, The carrier (110) is provided with a mounting part (111), and a movable area (H) is formed on the side of the mounting part (111) opposite to the detection area (Q), and the movable area (H) allows the detection line (X) to move.

3. The wire breakage detection device according to claim 1, characterized in that, It also includes a tensioning assembly (300), the tensioning assembly (300) comprising: A fixing member (310) is provided outside the detection area (Q) for fixing the end of the detection line (X); A movable component (320) is connected to the fixed component (310), and the movable component (320) has a degree of freedom of movement to move the fixed component (310) away from the wire carrier (110).

4. The wire breakage detection device according to claim 3, characterized in that, The fastener (310) includes: A stud (311) is fixed to the movable part (320); A wire clamping ring (312), wherein at least two wire clamping rings (312) are sleeved on the stud (311), and a receiving groove (C) is formed between the at least two wire clamping rings (312), the receiving groove (C) being used to receive the end of the detection line (X); and A bolt (313) is disposed on the stud (311) on the side opposite to the movable part (320), and the bolt (313) is threadedly connected to the stud (311) to act on the pressure ring (312).

5. The wire breakage detection device according to claim 3, characterized in that, The tensioning assembly (300) further includes a drive member (330) having an output shaft (331) that acts on the movable member (320) to drive the movable member (320) to move.

6. The wire breakage detection device according to claim 5, characterized in that, It also includes a guide component (400), the guide component (400) comprising: A guide substrate (410) is fixedly connected to the drive member (330); A guide shaft (420) extends through the guide base plate (410) and the movable member (320), and the guide shaft (420) is arranged parallel to the output shaft (331); and A guide bearing (430) is disposed between the movable part (320) and the guide shaft (420), and the guide bearing (430) is fixedly connected to the movable part (320), and the guide bearing (430) is axially movably connected to the guide shaft (420).

7. The wire breakage detection device according to claim 3, characterized in that, A wire shaft (500) is also provided between the wire carrier (110) and the fixing member (310). There are at least two wire shafts (500), and a wire gap (J) is formed between the at least two wire shafts (500). The wire gap (J) is used for the detection line (X) to pass through.

8. The wire breakage detection device according to claim 7, characterized in that, An eccentric wheel (510) is fitted on the conductor shaft (500), and the eccentric wheel (510) rotates to adjust the size of the conductor gap (J).

9. The wire breakage detection device according to claim 1, characterized in that, The carrier component (100) further includes a mounting bracket (120) on which the wire carrier (110) is provided, and the mounting bracket (120) has a degree of freedom of movement to adjust the position of the detection area (Q).

10. A wire cutting machine, characterized in that, Includes the wire breakage detection device as described in any one of claims 1-9.

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