Wire changing mechanism, automatic wire changing device and cutting system

Abstract

The utility model discloses a wire changing mechanism, an automatic wire changing device and a cutting system. The wire changing mechanism comprises a first support, a second support and a third support, the at least two wire shifting structures are eccentrically and rotationally arranged on the first bracket, and part of the wire shifting structures extend out of the first bracket; the wire shifting structure is suitable for changing the distance between the end part, extending out of the first bracket, of the wire shifting structure and the center of the first bracket during rotation, and supporting the annular wire body when the distance between the end part, extending out of the first bracket, of the wire shifting structure and the center of the first bracket is increased; and the annular wire body is released when the distance between the end part extending out of the first bracket and the center of the first bracket is reduced. Compared with the prior art, manual line replacement is not needed, manpower resources can be saved, the time needed for replacing the annular line body is greatly shortened, and automation of the whole machining process is easier to achieve.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting devices, in particular to a line changing mechanism, an automatic line changing device and a cutting system. Background Art

[0002] This section merely provides background information related to the present disclosure and may not constitute prior art.

[0003] The principle of diamond wire cutting technology is to use a high-speed moving diamond wire to drive the cutting blade attached to the diamond wire to rub against hard and brittle materials, thereby achieving the purpose of cutting. During the cutting process of the workpiece, the diamond wire is usually wound around several cutting wheels, and the cutting wheels are driven to rotate by a driving device, so that the diamond wire moves at high speed between the cutting wheels, thereby cutting the workpiece.

[0004] When using circular diamond wire or other wires to cut materials, when the cutting wire of the wire is worn to a certain extent, the wire needs to be replaced. The current method of replacing the wire is to remove the damaged wire from the cutting machine and then manually place the new wire on the cutting machine, which is time-consuming and labor-intensive, and cannot achieve automation of the entire processing process. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the wire body on the current cutting machine is replaced manually, which is time-consuming and labor-intensive, thereby providing a wire changing mechanism, an automatic wire changing device and a cutting system.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A line changing mechanism, comprising:

[0008] First bracket;

[0009] At least two expansion and contraction structures are provided on the first bracket and extend from the first bracket, and the expansion and contraction structures are suitable for changing the extension amount from the first bracket during movement, so that the overall outer contour of the line changing mechanism expands or contracts to achieve the acquisition or release of the annular line body.

[0010] To further optimize the technical solution, the expansion and contraction structure is a wire-shifting structure, which includes a rotating head and a shifting frame connected therebetween, and the wire-shifting structure is rotatably arranged on the first bracket through an eccentric shaft, and the distance between the distal end of the shifting frame and the eccentric shaft is greater than the distance between the distal end of the rotating head and the eccentric shaft.

[0011] To further optimize the technical solution, the toggle frame includes a plurality of spaced-apart forked support rods, each of which is provided with an axially extending toggle rod, a rubber-coated bearing is provided at the end of the toggle rod, and a wire groove is provided on the rubber-coated bearing.

[0012] To further optimize the technical solution, the line changing mechanism further includes a first driving assembly, which is respectively connected to each line shifting structure and is suitable for driving each line shifting structure to rotate.

[0013] To further optimize the technical solution, the first driving component includes:

[0014] A plurality of first rotating wheels, each of which is connected to an eccentric shaft, and each of which and a wire-shifting structure are located on both sides of a first bracket;

[0015] A first synchronous belt, wherein the first synchronous belt is sequentially sleeved on each first rotating wheel, and the first synchronous belt is suitable for driving each first rotating wheel to rotate synchronously;

[0016] A first motor is connected to a first synchronous belt, and the first motor is suitable for driving the first synchronous belt to move.

[0017] To further optimize the technical solution, a support structure is provided on the first bracket, and the support structure is suitable for keeping the annular wire body in a tensioned state during the wire changing process;

[0018] and / or

[0019] The first bracket is a polygonal bracket, and the wire-drying structure is arranged at the angular end of the first bracket.

[0020] An automatic line changing device, comprising:

[0021] The line changing mechanism;

[0022] The moving mechanism is connected to the line changing mechanism, and the moving mechanism is suitable for driving the line changing mechanism to move to the cutting device.

[0023] To further optimize the technical solution, the automatic wire changing device further includes a wire storage mechanism, which is suitable for storing at least one annular wire body;

[0024] The moving mechanism is suitable for driving the wire changing mechanism to move between the wire storage mechanism and the cutting device.

[0025] To further optimize the technical solution, the wire storage mechanism includes:

[0026] Second bracket;

[0027] A plurality of wire storage parts are provided on the second bracket at circumferential intervals and are suitable for expanding the annular wire body.

[0028] Further optimizing the technical solution, the wire storage part is a wire storage wheel, the wire storage wheel is rotatably arranged on the second bracket, and a spiral groove is opened on the wire storage wheel;

[0029] Each of the wire storage wheels is driven by a second driving assembly arranged on the second bracket, and each of the wire storage wheels is suitable for feeding the annular wire body along the axis when rotating.

[0030] To further optimize the technical solution, the second driving component includes:

[0031] A plurality of second rotating wheels, each of which is coaxially arranged with the wire storage wheel and is located on both sides of the second bracket;

[0032] A second synchronous belt, wherein the second synchronous belt is sequentially sleeved on each second rotating wheel, and the second synchronous belt is suitable for driving each second rotating wheel to rotate synchronously;

[0033] The second motor is connected to the second synchronous belt, and the second motor is suitable for driving the second synchronous belt to move.

[0034] To further optimize the technical solution, a tensioning structure is provided on the second bracket, and the tensioning structure is suitable for tensioning the annular wire body wound on each wire storage wheel;

[0035] and / or

[0036] The second bracket is provided with a plurality of weight-reducing holes;

[0037] and / or

[0038] The second bracket is a polygonal bracket, and the wire storage portion is arranged at an angular end portion of the second bracket.

[0039] Further optimizing the technical solution, when the distance between the distal end of the wire-driving structure and the center of the first bracket is greater than the distance between the distal end of the wire-storing part and the center of the second bracket, the wire-driving structure can open the annular wire body on the wire-storing mechanism to transfer the annular wire body to the wire-driving structure;

[0040] When the distance between the distal end of the wire-pulling structure and the center of the first stent is reduced, the wire-pulling structure can release the annular wire body thereon to the cutting device.

[0041] A cutting system, comprising:

[0042] A cutting device, wherein the cutting device is suitable for cutting a workpiece by using a high-speed rotating annular wire body;

[0043] The automatic wire changing device is suitable for automatically releasing the annular wire body onto the cutting device.

[0044] The technical solution of this utility model has the following advantages:

[0045] 1. The utility model provides a line-changing mechanism, which changes the distance between the end of the structure extending out of the first bracket and the center of the first bracket by the movement of the expansion and contraction structure, thereby changing the size of the overall outer contour of the first bracket and the line-pulling structure, so as to achieve the acquisition and release of the annular line body. When the overall outer contour of the first bracket and the line-pulling structure becomes larger, the annular line body at the position of the line storage mechanism can be captured and moved to the position of the cutting device under the drive of the moving mechanism. The overall outer contour of the first bracket and the line-pulling structure becomes smaller, and then the annular line body is released onto the cutting device. After being equipped with a line-changing mechanism, there is no need for manual line changing, which can save human resources and make it easier to realize the automation of the entire processing process.

[0046] 2. The utility model provides an automatic line-changing device. When the moving mechanism drives the line-changing mechanism to move to the position of the line storage mechanism, the line-changing mechanism obtains the annular line body on the line storage mechanism, and then the moving mechanism drives the line-changing mechanism to move to the position of the cutting device, and the line-changing mechanism releases the annular line body onto the cutting device, thereby realizing the exchange of the annular line body between the line storage mechanism and the line-changing mechanism, and the exchange of the annular line body between the line-changing mechanism and the cutting device. After being equipped with the automatic line-changing device, there is no need for manual line changing, which can save human resources, greatly reduce the time required to replace the annular line body, and make it easier to realize the automation of the entire processing process.

[0047] 3. The utility model provides an automatic wire changing device, in which a plurality of annular wire bodies are arranged in sequence in the spiral groove of the wire storage wheel. When the second driving component drives the wire storage wheel to rotate, the spiral groove on the wire storage wheel will push the annular wire body to move forward along the axial direction, thereby realizing the automatic wire feeding function, so that the wire storage mechanism has the functions of storing and feeding wires.

[0048] 4. The utility model provides an automatic line-changing device. When the line-changing mechanism obtains the annular line body on the line storage mechanism and the line storage mechanism needs to feed the annular line body stored at the rear forward, the second motor drives the second synchronous belt to move, thereby driving the second rotating wheels to rotate synchronously, thereby driving the line storage wheels to rotate synchronously, and the annular line body will be transported forward axially as the spiral groove on the line storage wheel rotates. After the annular line body is transported to a position where it can be captured by the line-changing mechanism, the second motor stops moving and the annular line body no longer moves. At this time, the line-changing mechanism can capture the annular line body very conveniently.

[0049] 5. In the automatic line-changing device provided by the utility model, a plurality of weight-reducing holes are opened on the second bracket, which reduces the weight of the second bracket and reduces the material consumption when manufacturing the second bracket.

[0050] 6. The utility model provides an automatic wire changing device, in which the distance between the distal end of the wire shifting structure and the center of the first bracket is increased, and when the distance between the distal end of the wire shifting structure and the center of the first bracket is greater than the distance between the distal end of the wire storage portion and the center of the second bracket, the wire shifting structure can open the annular wire body on the wire storage mechanism 1 to transfer the annular wire body to the wire shifting structure. When the distance between the distal end of the wire shifting structure and the center of the first bracket is reduced, the wire shifting structure can release the annular wire body thereon to the cutting device. The utility model adopts a method in which the distance between the distal end of the wire shifting structure and the center of the first bracket is changed when the wire shifting structure rotates, thereby cleverly realizing the capture and release of the annular wire body, and the degree of automation is high, and continuous operation can be performed.

[0051] 7. The utility model provides an automatic line-changing device, in which the rubber-coated bearing is a structure in which a rubber layer is coated on the outside of the bearing. The friction force when the rubber layer on the outer surface of the bearing contacts with the annular line body is large. A line groove is provided on the rubber-coated bearing to ensure that the annular line body is not easy to slip off the rubber layer, thereby ensuring that the line-changing mechanism can take out the line normally.

[0052] 8. The utility model provides an automatic line changing device, in which the first motor can drive each first rotating wheel and each line shifting structure to rotate synchronously, thereby simultaneously changing the distance between the distal end of each line shifting structure and the center of the first bracket, thereby better realizing the capture and release of the annular line body.

[0053] 9. The utility model provides an automatic line-changing device. When the annular line body is transferred from the line storage wheel of the line storage mechanism to the line-changing mechanism, the support rod always maintains a certain tension during the line-changing process, so that the annular line body is always in a tensioned state, thereby separating the annular line body from the line storage wheel, making it easier for the annular line body to be transferred to the line-changing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0055] Figure 1 A structural schematic diagram of an automatic line changing device provided by the utility model;

[0056] Figure 2 A schematic structural diagram of a wire storage mechanism in an automatic wire changing device provided by the utility model from a second viewing angle;

[0057] Figure 3A schematic structural diagram of a wire storage mechanism in an automatic wire changing device provided by the utility model from a first perspective;

[0058] Figure 4 A schematic structural diagram of a wire changing mechanism in an automatic wire changing device provided by the utility model from a second viewing angle;

[0059] Figure 5 A schematic structural diagram of a line-changing mechanism in an automatic line-changing device provided by the utility model from a first perspective;

[0060] Figure 6 A schematic diagram of the structure of a wire-changing mechanism in an automatic wire-changing device provided by the utility model before wire-changing with a wire-storing mechanism;

[0061] Figure 7 It is a structural schematic diagram of a rubber-coated bearing wire groove on a wire changing mechanism in an automatic wire changing device provided by the utility model being aligned with an annular diamond wire on a wire storage mechanism;

[0062] Figure 8 A schematic diagram of the structure of a wire changing mechanism and a wire storage mechanism in an automatic wire changing device provided by the utility model after wire changing;

[0063] Fig. 9 It is a structural schematic diagram of a wire changing mechanism in an automatic wire changing device provided by the utility model and a cutting wheel of a cutting device being aligned;

[0064] Fig.10 A schematic diagram of the structure of a wire changing mechanism and a cutting device in an automatic wire changing device provided by the utility model when changing wires;

[0065] Fig.11 The utility model provides a schematic structural diagram of a wire changing mechanism and a cutting device in an automatic wire changing device after wire changing.

[0066] Reference numerals:

[0067] 1. wire storage mechanism, 11. second bracket, 12. wire storage wheel, 13. tensioning structure, 131. tensioning plate, 132. spring, 15. weight reduction hole, 16. second rotating wheel, 17. second synchronous belt, 18. second motor;

[0068] 2. Line changing mechanism, 21. First bracket, 22. Line shifting structure, 221. Moving frame, 222. Rubber-coated bearing, 223. Rotating head, 224. First synchronous belt, 225. First rotating wheel, 226. First motor, 227. Moving rod, 23. Support structure;

[0069] 3. Cutting device, 31. Cutting wheel;

[0070] 4. Annular line body. DETAILED DESCRIPTION

[0071] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the automatic wire changing device of the present invention described in the present invention is only a preferred embodiment, and does not limit the protection scope of the automatic wire changing device, by driving the wire changing mechanism to move to the wire storage mechanism position through a moving mechanism to obtain the wire body, and by driving the wire changing mechanism to move to the cutting device position to release the wire body.

[0072] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an" and "an" as used herein may also be meant to include the plural forms. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0073] Although the terms first, second, etc. may be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. In addition, in the description of the utility model, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0074] For ease of description, spatial relative terms can be used in the text to describe the relationship of an element or feature relative to another element or feature as shown in the figure, and these relative terms are, for example, "front", "rear", "middle", "inside", "longitudinal", "lateral", "side", "vertical", "outside", etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation in addition to the orientation depicted in the figure. For example, if the mechanism in the figure flips, the element described as "below other elements or features" or "below other elements or features" will be subsequently oriented to "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include the orientation on and below. The mechanism can be oriented in addition (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0075] It should be noted that "diamond wire" refers to a cutting steel wire with tiny diamond particles embedded on the surface.

[0076] The principle of diamond wire cutting technology is to use a high-speed moving diamond wire to drive the cutting blade attached to the diamond wire to rub against hard and brittle materials, thereby achieving the purpose of cutting. In the process of cutting the workpiece, the diamond wire is usually wound on several cutting wheels, and the cutting wheels are driven to rotate by the driving device to achieve high-speed movement of the diamond wire between the cutting wheels. The diamond wire is formed into a closed loop, which enables it to rotate at an amazing linear speed. This high-speed rotation makes the diamond particles extremely sharp and can quickly cut various materials.

[0077] When using circular diamond wire or other wires to cut materials, when the cutting wire of the wire is worn to a certain extent, the wire needs to be replaced. The current method of replacing the wire is to remove the damaged wire from the cutting machine and then manually place the new wire on the cutting machine, which is time-consuming and labor-intensive.

[0078] Based on this, the utility model designs an automatic wire changing device, which utilizes a wire storage mechanism to store the annular wire body, and utilizes a moving mechanism to drive the wire changing mechanism to move between the wire storage mechanism and the cutting device. After the wire changing mechanism obtains the annular wire body on the wire storage mechanism, the wire changing mechanism is driven by the moving mechanism to move to the position of the cutting device to release the annular wire body, thereby realizing the replacement of the annular wire body of the cutting device. The degree of automation is very high, and there is no need to manually install the annular wire body on the cutting device.

[0079] The specific embodiments of the present invention are described in detail below in conjunction with the line changing mechanism of the first aspect of the present invention.

[0080] It should be noted that the line changing mechanism of the first aspect of the utility model is only a preferred embodiment of the utility model. The line changing mechanism of the utility model can adopt the line changing mechanism of the first aspect of the utility model or other structures. For the convenience of explanation, the line changing mechanism of the first aspect of the utility model is explained in detail below.

[0081] like Figure 4 and Figure 5 As shown, this embodiment discloses a line changing mechanism, including a first bracket 21 and an expansion and contraction structure, at least two expansion and contraction structures are provided, the expansion and contraction structures are provided on the first bracket 21 and extend from the first bracket 21, the expansion and contraction structures are suitable for changing the extension amount from the first bracket 21 during movement, so that the overall outer contour of the line changing mechanism is expanded or contracted to achieve the acquisition or release of the annular line body.

[0082] The expansion and contraction structure is a wire-drying structure 22, which is eccentrically rotated and arranged on the first bracket 21. As an alternative embodiment, the expansion and contraction structure can also be in the form of sliding telescopic. When the expansion and contraction structure slides toward the periphery of the first bracket 21, the expansion and contraction structure extends from the first bracket 21, and when the expansion and contraction structure slides toward the inside of the first bracket 21, the expansion and contraction structure shortens from the first bracket 21.

[0083] The above-mentioned line-changing mechanism changes the distance between the end extending out of the first bracket and the center of the first bracket 21 through the movement of the expansion and contraction structure, thereby changing the size of the overall outer contour of the first bracket 21 and the line-pulling structure 22, so as to achieve the acquisition and release of the annular line body. When the overall outer contour of the first bracket 21 and the line-pulling structure 22 becomes larger, the annular line body at the position of the line storage mechanism can be captured and moved to the position of the cutting device under the drive of the moving mechanism. The overall outer contour of the first bracket 21 and the line-pulling structure 22 becomes smaller, and then the annular line body is released onto the cutting device. After being equipped with a line-changing mechanism, there is no need for manual line changing, which can save human resources and make it easier to realize the automation of the entire processing process.

[0084] On the other hand, the line changing mechanism can also be used directly as a line storage device. An annular line body is sleeved on the line changing mechanism. That is, when the line needs to be changed, the annular line body on the line changing mechanism can be directly released onto the cutting device.

[0085] In some embodiments, Figure 4 and Figure 5As shown, the wire-dial structure 22 includes a rotating head 223 and a toggle frame 221, the toggle frame 221 is connected to the rotating head 223, the toggle frame 221 is rotatably arranged on the first bracket 21 through the eccentric shaft, the distance between the distal end of the toggle frame 221 and the eccentric shaft is greater than the distance between the distal end of the rotating head 223 and the eccentric shaft, and then when the toggle frame 221 is rotated to the extended position of the first bracket, the distance between the distal end of the wire-dial structure 22 and the center of the first bracket 21 can be increased, and when the rotating head 223 is rotated to the extended position of the first bracket, the distance between the distal end of the wire-dial structure 22 and the center of the first bracket 21 can be reduced. The first driving assembly is respectively connected to each wire-dial structure 22 and is suitable for driving each wire-dial structure 22 to rotate. It should be noted that the distal end of the toggle frame 221 refers to the end of the toggle frame 221 that is farther from the eccentric shaft, and the distal end of the rotating head 223 refers to the end of the rotating head 223 that is farther from the eccentric shaft.

[0086] In this embodiment, the first driving component can drive the rotating head 223 and the toggle frame 221 to rotate. When the rotation positions of the rotating head 223 and the toggle frame 221 are different, the distance between the far end of the wire-digging structure 22 and the center of the first bracket 21 can be changed, thereby realizing the wire-digging function of the wire-digging structure 22 and the wire-releasing function of the wire-digging structure 22. The design is ingenious, and no manual operation is required, with a high degree of automation.

[0087] In some embodiments, the toggle frame 221 includes a plurality of spaced-apart forked support rods, each of which is axially extended with a toggle rod 227 , and a rubber-coated bearing 222 is provided at the end of the toggle rod 227 , and a wire groove is formed on the rubber-coated bearing 222 .

[0088] In this embodiment, the bifurcated support rods can be set to two, three, or more than three, and the bifurcated support rods are connected by reinforcing rods. When the line-changing mechanism 2 moves to the position of the line storage mechanism 1, the rubber-coated bearing 222 corresponds to an annular wire body on the line storage mechanism 1, and then when the line-shifting structure rotates, when the toggle frame 221 rotates toward the extension end of the first bracket, the rubber-coated bearing 222 will contact the annular wire body on the line storage mechanism 1 and gradually open the annular wire body. At this time, the annular wire body at this location will be transferred to the line-changing mechanism 2. When the line-changing mechanism 2 moves to the position of the cutting device 3, the rubber-coated bearing 222 corresponds to the position of the cutting wheel 31 on the cutting device 3. When the rotating head 223 rotates toward the extension end of the first bracket, the distance between the distal end of the line-shifting structure and the center of the first bracket 21 will decrease. At this time, the rubber-coated bearing 222 gradually disengages from the annular wire body, and the annular wire body is transferred to the cutting wheel of the cutting device 3.

[0089] The rubber-coated bearing 222 is a structure in which a rubber layer is coated on the outside of the bearing. The friction force when the rubber layer on the outer surface of the bearing contacts the annular wire body is large. A wire groove is provided on the rubber-coated bearing 222 to ensure that the annular wire body is not easy to slip off the rubber layer, thereby ensuring that the wire changing mechanism 2 can take the wire normally.

[0090] In some embodiments, Figure 5 As shown, the first driving assembly includes a first rotating wheel 225, a first synchronous belt 224 and a first motor 226. A plurality of first rotating wheels 225 are provided, each of which is connected to an eccentric shaft, and each of the first rotating wheels 225 and the wire-pulling structure are located on both sides of the first bracket 21. The first synchronous belt 224 is sequentially sleeved on each of the first rotating wheels 225, and the first synchronous belt 224 is suitable for driving each of the first rotating wheels 225 to rotate synchronously. The first motor 226 is connected to the first synchronous belt 224, and the first motor 226 is suitable for driving the first synchronous belt 224 to move, and the first motor 226 is a reduction motor. More specifically, the output shaft end of the first motor 226 is connected to a first driving wheel, and the first synchronous belt 224 is sleeved on the first driving wheel, so that when the first motor 226 is running, the first synchronous belt 224 can be driven to move through the first driving wheel.

[0091] In this embodiment, the first motor 226 can drive each first rotating wheel 225 and each wire-pulling structure to rotate synchronously, thereby simultaneously changing the distance between the distal end of each wire-pulling structure and the center of the first bracket 21, thereby better realizing the capture and release of the annular wire body. When the reduction motor drives the rotating head to rotate through the synchronous belt, the annular wire body can be transferred to the rubber-coated bearing, and then the annular wire body can be transferred to the cutting machine head in a similar manner.

[0092] In some embodiments, the first bracket 21 is a polygonal bracket, and the second bracket 11 can be a pentagonal bracket or other types of angular brackets. The wire-drying structure 22 is disposed at the angular end of the first bracket 21 .

[0093] The specific embodiments of the present invention are described in detail below in conjunction with the automatic line changing device of the second aspect of the present invention.

[0094] It should be noted that the automatic line changing device of the second aspect of the utility model is only a preferred embodiment of the utility model. The automatic line changing device of the utility model can adopt the automatic line changing device of the second aspect of the utility model, and can also adopt other structures. For the convenience of explanation, the automatic line changing device of the second aspect of the utility model is explained in detail below.

[0095] like Figures 1 to 11As shown, this embodiment discloses an automatic line-changing device, including a line storage mechanism 1, a line-changing mechanism 2 and a moving mechanism. The line storage mechanism 1 is suitable for storing at least one annular line body 4. The line-changing mechanism 2 has a second state in which the annular line body is propped up and a first state in which the annular line body is not in contact with the annular line body. The size of the line-changing mechanism 2 in the second state is larger than the size of the line-changing mechanism 2 in the first state, and the size of the line-changing mechanism 2 in the second state is larger than the size of the line storage mechanism 1; when the line-changing mechanism 2 moves to the position of the line storage mechanism 1 and the line-changing mechanism 2 is converted from the first state to the second state, the line-changing mechanism 2 contacts the single annular line body and opens the annular line body to obtain the single annular line body; when the line-changing mechanism 2 moves to the position of the cutting device 3 and the line-changing mechanism 2 is converted from the second state to the first state, the line-changing mechanism 2 is separated from the annular line body to release the annular line body onto the cutting device 3. The moving mechanism is connected to the line-changing mechanism 2, and the moving mechanism is suitable for driving the line-changing mechanism 2 to move between the line storage mechanism 1 and the cutting device 3.

[0096] As an embodiment, the cutting device 3 is arranged on the cutting machine. The moving mechanism is a truss manipulator that can move up, down, left and right. The wire storage mechanism 1 is used to store the annular wire body 4; the wire changing mechanism 2 is used to replace the annular wire body 4. More specifically, the wire changing mechanism 2 transfers the annular wire body 4 from the wire storage mechanism 1 to the cutting machine head. When the wire changing mechanism 2 obtains the annular wire body 4 on the wire storage mechanism 1, it adopts a method of spreading the annular wire body 4. The annular wire body 4 can be an annular diamond wire or other types of wire bodies.

[0097] The above-mentioned automatic line-changing device first designs a line-changing mechanism 2 and a line-storing mechanism 1, and then replaces the annular line body 4 from the line-storing mechanism 1 to the line-changing mechanism 2, and installs the annular line body 4 on the cutting wheel 31 of the cutting device 3 by moving and adjusting the line-changing mechanism 2. More specifically, when the moving mechanism drives the line-changing mechanism 2 to move to the position of the line-storing mechanism 1, the line-changing mechanism 2 obtains the annular line body 4 on the line-storing mechanism 1, and then the moving mechanism drives the line-changing mechanism 2 to move to the position of the cutting device 3, and the line-changing mechanism 2 releases the annular line body 4 to the cutting device 3, thereby realizing the exchange of the annular line body between the line-storing mechanism and the line-changing mechanism, and the exchange of the annular line body between the line-changing mechanism and the cutting device. After being equipped with an automatic line-changing device, there is no need for manual line changing, which can save human resources and make it easier to realize the automation of the entire processing process.

[0098] In some embodiments, Figure 2 As shown, the wire storage mechanism 1 comprises a second bracket 11 and a wire storage part. There are a plurality of wire storage parts, each of which is circumferentially spaced apart on the second bracket 11 and is suitable for expanding the annular wire body.

[0099] In this embodiment, the annular wire body can be sleeved on each wire storage part, and then the annular wire body can be expanded, so that the wire changing mechanism 2 can obtain the expanded annular wire body. It should be noted that the wire storage part in this embodiment can be in a rotating form or a non-rotating form, and the specific shape of the wire storage part can also be various forms.

[0100] In some embodiments, the wire storage portion is in the form of rotation, for example, Figure 2 and Figure 3 As shown, the wire storage part is a wire storage wheel 12, which is rotatably arranged on the second bracket 11, and a spiral groove is provided on the wire storage wheel 12. Each wire storage wheel 12 is driven by a second driving assembly arranged on the second bracket 11, and each wire storage wheel 12 is suitable for feeding the annular wire body along the axis when rotating.

[0101] In this embodiment, a plurality of annular wire bodies are sequentially arranged in the spiral groove of the wire storage wheel 12. When the second drive assembly drives the wire storage wheel 12 to rotate, the spiral groove on the wire storage wheel 12 will push the annular wire body to move forward axially, thereby realizing the automatic wire feeding function, so that the wire storage mechanism 1 has the functions of wire storage and wire feeding. When the wire changing mechanism 2 moves to the position of the wire storage mechanism 1, the annular wire body moves axially in the direction of the wire changing mechanism 2. It should be noted that "axial" refers to a direction parallel to the central axis of the second bracket 11 or the central axis of the wire storage wheel 12.

[0102] In some embodiments, Figure 3 As shown, the second driving assembly includes a second rotating wheel 16, a second synchronous belt 17 and a second motor 18. There are a plurality of second rotating wheels 16, each of which is coaxially arranged with the wire storage wheel 12 and located on both sides of the second bracket 11. When the second rotating wheel 16 rotates, the wire storage wheel 12 can be driven to rotate synchronously. The second synchronous belt 17 is sequentially sleeved on each second rotating wheel 16, and the second synchronous belt 17 is suitable for driving each second rotating wheel 16 to rotate synchronously. The second motor 18 is connected to the second synchronous belt 17, and the second motor 18 is suitable for driving the second synchronous belt 17 to move. The second motor 18 is a reduction motor. More specifically, the second motor 18 is coaxially connected to the second driving wheel, and the second synchronous belt 17 is sleeved on the second driving wheel. The second driving wheel rotates under the drive of the second motor 18, thereby driving the second synchronous belt 17 to move.

[0103] In this embodiment, when the wire changing mechanism 2 obtains part of the annular wire body on the wire storage mechanism 1, and the wire storage mechanism 1 needs to feed the annular wire body stored at the rear forward, the second motor 18 drives the second synchronous belt 17 to move, thereby driving the second rotating wheels 16 to rotate synchronously, thereby driving the wire storage wheels 12 to rotate synchronously, and the annular wire body will be transported forward axially as the spiral groove on the wire storage wheel 12 rotates. After the annular wire body is transported to a position where it can be captured by the wire changing mechanism 2, the second motor 18 stops moving and the annular wire body no longer moves. At this time, the wire changing mechanism 2 can capture the annular wire body very conveniently.

[0104] In some embodiments, a plurality of weight-reducing holes 15 are provided on the second bracket 11 , which reduces the weight of the second bracket 11 and reduces the material consumption when manufacturing the second bracket 11 .

[0105] In some embodiments, the second bracket 11 is a polygonal bracket. In this embodiment, the second bracket 11 can be a hexagonal bracket or an angular bracket of other types. The wire storage portion is disposed at the angular end of the second bracket 11 .

[0106] In some embodiments, a tensioning structure 13 is provided on the second bracket 11, and the tensioning structure 13 is suitable for tensioning the annular wire body wound on each wire storage wheel 12. The tensioning structure 13 includes a tensioning plate 131 and a spring 132. The tensioning plate 131 is rotatably provided on the second bracket 11 through a rotating shaft, and both ends of the tensioning plate 131 extend out of the angular end of the second bracket 11 respectively. One end of the tensioning plate 131 is connected to a spring 132, and the spring 132 is connected to the second bracket 11. The other end of the tensioning plate 131 is rotatably connected to a wire storage wheel. Under the action of the spring 132, the wire storage wheel has a tendency to move outward, thereby tensioning the annular wire body on the wire storage wheel.

[0107] In some embodiments, the distance between the distal end of the wire dialing structure 22 and the center of the first bracket 21 is increased, and when the distance between the distal end of the wire dialing structure 22 and the center of the first bracket 21 is greater than the distance between the distal end of the wire storage part and the center of the second bracket 11, the wire dialing structure 22 can expand the annular wire body on the wire storage mechanism 1 to transfer the annular wire body to the wire dialing structure 22.

[0108] When the distance between the distal end of the wire-pulling structure 22 and the center of the first bracket 21 is reduced, the wire-pulling structure 22 can release the annular wire body thereon to the cutting device 3 .

[0109] In some embodiments, the rotation center of the wire shifting structure on the wire changing mechanism 2 is concentric with the center of the wire storage wheel of the wire storage mechanism 1, and the distance from the farthest end of the shifting frame 221 of the wire shifting structure to the rotation center of the wire shifting structure is greater than the radius of the wire storage wheel, so that when the shifting frame 221 rotates, the annular wire body on the wire storage wheel can be supported.

[0110] In some embodiments, Figure 4 As shown, a support structure 23 is provided on the first bracket 21, and the support structure 23 is suitable for keeping the annular line body in a tensioned state during the line change process. The support structure 23 includes a support rod and a cylinder, wherein one end of the support rod is hingedly provided on the first bracket 21, and the other end of the support rod is axially provided with a transverse rod, which is used to support the annular line body, and the middle part of the support rod is connected to the cylinder ( Figure 4 The piston rod end of the cylinder is hinged to the fixed seat (not shown). Figure 4 The fixing seat is slidably assembled on the first bracket 21.

[0111] In this embodiment, when the annular wire body is transferred from the wire storage wheel of the wire storage mechanism 1 to the wire changing mechanism 2, the support rod always maintains a certain tension during the wire changing process, so that the annular wire body is always in a tensioned state, thereby separating the annular wire body from the wire storage wheel, making it easier for the annular wire body to be transferred to the wire changing mechanism 2.

[0112] Taking the annular wire body as an annular diamond wire as an example, the specific working process of the above-mentioned automatic wire changing device is as follows:

[0113] S1. Place the ring-shaped diamond wire on the wire storage mechanism 1.

[0114] Press the tensioning structure 13 down to a suitable position, and place the diamond wire into the groove according to the order of the spiral groove of the wire storage wheel 12. After the installation is completed, release the tensioning structure 13 to keep a certain tension on the annular diamond wire.

[0115] S2. Instruct the wire-changing mechanism 2 to move to the position of the wire-storing mechanism 1. Control the wire-changing mechanism 2 to switch from the first state to the second state, and transfer the annular diamond wire from the wire-storing mechanism 1 to the wire-changing mechanism 2.

[0116] S21. Figure 6 As shown, the wire-pulling structure is first rotated to the second position so that there is no interference between the wire-pulling structure and the annular diamond wire.

[0117] S22. Figure 7 As shown, the wire changing mechanism 2 is moved so that the wire groove in the rubber-coated bearing 222 on the wire shifting frame 221 of the wire shifting structure is aligned with the second annular diamond wire on the wire storage mechanism 1 .

[0118] S23. Figure 8 As shown, the rotating wire-shifting structure causes the rubber-coated bearing 222 on the shifting frame 221 to contact the annular diamond wire and prop up the annular diamond wire, so that the annular diamond wire is shifted from the wire storage wheel 12 of the wire storage mechanism 1 to the wire-changing mechanism 2. During the wire-changing process, the support rod always maintains a certain tension, so that the annular diamond wire is always in a tensioned state.

[0119] S3. Instruct the wire-changing mechanism 2 to move to the position of the cutting device 3. Control the wire-changing mechanism 2 to switch from the second state to the first state, and transfer the annular diamond wire from the wire-changing mechanism 2 to the cutting machine head.

[0120] S31. Fig. 9 As shown, the wire changing mechanism 2 is moved to align the diamond wire in the rubber-coated bearing 222 with the cutting wheel groove.

[0121] S32. Fig.10 and Fig.11 As shown, the rotating toggle frame 221 reduces the overall size of the wire-changing structure, and the rubber-coated bearing 222 on the toggle frame 221 gradually separates from the annular diamond wire, and the toggle frame 221 no longer supports the annular diamond wire, and the annular diamond wire retracts into the cutting wheel groove, so that the annular diamond wire is transferred from the wire-changing mechanism 2 to the cutting wheel. During the wire-changing process, the support rod always maintains a certain tension, so that the annular diamond wire is always in a tensioned state.

[0122] S33. After the line change is completed, the cylinder contracts to separate the support rod from the annular diamond wire, thereby completing the line change of the mechanism.

[0123] The specific embodiments of the present invention are described in detail below in conjunction with the cutting system of the third aspect of the present invention.

[0124] It should be noted that the cutting system of the third aspect of the utility model is only a preferred embodiment of the utility model. The cutting system of the utility model can adopt the cutting system of the third aspect of the utility model or other structures. For the convenience of explanation, the cutting system of the third aspect of the utility model is explained below.

[0125] This embodiment discloses a cutting system, including a cutting device 3 and an automatic wire changing device. The cutting device 3 is a cutter, and the cutting device 3 is suitable for cutting a workpiece using a high-speed rotating annular wire body. The automatic wire changing device is suitable for automatically releasing the annular wire body onto the cutting device 3.

[0126] In the above-mentioned cutting system, when the annular wire body on the cutting device 3 needs to be replaced, the annular wire body on the wire storage mechanism 1 can be transferred to the cutting device 3 through the wire changing mechanism 2 in the automatic wire changing device.

[0127] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A line changing mechanism, characterized in that: include: A first bracket (21); At least two expansion and contraction structures are provided, wherein the expansion and contraction structures are arranged on the first bracket (21) and extend from the first bracket (21), and the expansion and contraction structures are suitable for changing the extension amount from the first bracket (21) during movement, so that the overall outer contour of the line changing mechanism is expanded or contracted, so as to achieve the acquisition or release of the annular line body.

2. The line changing mechanism according to claim 1, characterized in that: The expansion and contraction structure is a wire-shifting structure (22), which comprises a rotating head (223) and a shifting frame (221) connected therebetween, and the wire-shifting structure (22) is rotatably arranged on a first support (21) via an eccentric shaft, and the distance between the distal end of the shifting frame (221) and the eccentric shaft is greater than the distance between the distal end of the rotating head (223) and the eccentric shaft.

3. The line changing mechanism according to claim 2, characterized in that: The toggle frame (221) comprises a plurality of forked support rods spaced apart from each other, each forked support rod being provided with an axially extending toggle rod (227), a rubber-coated bearing (222) being provided at the end of the toggle rod (227), and a wire groove being provided on the rubber-coated bearing (222).

4. The line changing mechanism according to claim 1, characterized in that: The line changing mechanism further comprises a first driving assembly, wherein the first driving assembly is respectively connected to each line shifting structure (22) and is suitable for driving each line shifting structure (22) to rotate.

5. The line changing mechanism according to claim 4, characterized in that: The first driving assembly comprises: A plurality of first rotating wheels (225), each of the first rotating wheels (225) being connected to an eccentric shaft respectively, and each of the first rotating wheels (225) and the wire-shifting structure (22) being located on both sides of the first bracket (21); A first synchronous belt (224), wherein the first synchronous belt (224) is sequentially sleeved on each of the first rotating wheels (225), and the first synchronous belt (224) is suitable for driving each of the first rotating wheels (225) to rotate synchronously; A first motor (226), wherein the first motor (226) is connected to the first synchronous belt (224), and the first motor (226) is suitable for driving the first synchronous belt (224) to move.

6. The line changing mechanism according to claim 1, characterized in that: The first bracket (21) is provided with a support structure (23), and the support structure (23) is suitable for keeping the annular wire body in a tensioned state during the wire changing process; and / or The first bracket (21) is a polygonal bracket, and the expansion and contraction structure is arranged at the angular end of the first bracket (21).

7. An automatic line changing device, characterized in that: include: The line changing mechanism (2) according to any one of claims 1 to 6; A moving mechanism, wherein the moving mechanism is connected to the line changing mechanism (2), and the moving mechanism is suitable for driving the line changing mechanism (2) to move to the cutting device (3).

8. The automatic line changing device according to claim 7, characterized in that: The automatic wire changing device further comprises a wire storage mechanism (1), wherein the wire storage mechanism (1) is suitable for storing at least one annular wire body; The moving mechanism is suitable for driving the wire changing mechanism (2) to move between the wire storage mechanism (1) and the cutting device (3).

9. The automatic line changing device according to claim 8, characterized in that: The wire storage mechanism (1) comprises: A second bracket (11); A plurality of wire storage parts are provided, each of which is circumferentially spaced apart on the second bracket (11) and is suitable for expanding the annular wire body.

10. The automatic line changing device according to claim 9, characterized in that: The wire storage part is a wire storage wheel (12), the wire storage wheel (12) is rotatably arranged on the second bracket (11), and a spiral groove is provided on the wire storage wheel (12); Each of the wire storage wheels (12) is driven by a second driving assembly arranged on the second bracket (11), and each of the wire storage wheels (12) is suitable for feeding the annular wire body along the axis when rotating.

11. The automatic line changing device according to claim 10, characterized in that: The second driving assembly comprises: A plurality of second rotating wheels (16), each of the second rotating wheels (16) being coaxially arranged with the wire storage wheel (12) and located on both sides of the second bracket (11); A second synchronous belt (17), wherein the second synchronous belt (17) is sequentially sleeved on each second rotating wheel (16), and the second synchronous belt (17) is suitable for driving each second rotating wheel (16) to rotate synchronously; A second motor (18), wherein the second motor (18) is connected to the second synchronous belt (17), and the second motor (18) is suitable for driving the second synchronous belt (17) to move.

12. The automatic line changing device according to any one of claims 9 to 11, characterized in that: The second bracket (11) is provided with a tensioning structure (13), and the tensioning structure (13) is suitable for tensioning the annular wire body wound on each wire storage wheel (12); and / or The second bracket (11) is provided with a plurality of weight-reducing holes (15); and / or The second bracket (11) is a polygonal bracket, and the wire storage portion is arranged at an angular end portion of the second bracket (11).

13. The automatic line changing device according to any one of claims 9 to 11, characterized in that: When the distance between the distal end of the wire-drivable structure (22) and the center of the first bracket (21) is greater than the distance between the distal end of the wire-storing portion and the center of the second bracket (11), the wire-drivable structure (22) can open the annular wire body on the wire-storing mechanism (1) so that the annular wire body is transferred to the wire-drivable structure (22); When the distance between the distal end of the wire-pulling structure (22) and the center of the first bracket (21) is reduced, the wire-pulling structure (22) can release the annular wire body thereon to the cutting device (3).

14. A cutting system, characterized in that: include: A cutting device (3), wherein the cutting device (3) is suitable for cutting a workpiece using a high-speed rotating annular wire body; The automatic wire changing device according to any one of claims 7 to 13 is suitable for automatically releasing the annular wire body onto the cutting device (3).

Images