Cutting system

Abstract

The utility model discloses a cutting system, comprising: a cutting tool comprising a housing assembly, the housing assembly forms a cutting area, a saw blade is at least partially located in the cutting area, the saw blade located in the cutting area moves along an extension direction, and the saw blade is configured to cut a workpiece to be cut; the auxiliary mechanism is arranged to be connected with the cutting tool, and the auxiliary mechanism is used for fixing the to-be-cut workpiece; the auxiliary mechanism comprises a base; the supporting arm assembly comprises a supporting arm connected with the cutting tool, and the cutting tool is movably connected with the base through the supporting arm assembly; the connecting assembly is matched with the supporting arm, and the connecting assembly is configured to provide supporting force for the supporting part; under the condition that no external force exists on the supporting arm, in the range that the included angle between the extending direction and the base is larger than or equal to 0 degree and smaller than or equal to 60 degrees, the cutting tool can be kept static relative to the base in at least one position in the range of the included angle.

Description

Technical Field

[0001] This application relates to a cutting system, specifically a tabletop cutting system. Background Technology

[0002] This cutting system, part of a related technology, can be used to cut all machinable metals, including stainless steel, as well as pipes and solid materials. It possesses strong heat resistance, wear resistance, and shock resistance, and has a longer service life compared to similar products. Due to its flexibility and ease of use, it has been widely applied in industrial and household applications for cutting various types of bars, pipes, and profiles.

[0003] However, when using the cutting system, users need to cut a large number of parts, which requires frequent cutting. When the conventional cutting tool is mounted on the base, if the user removes the force applied to the cutting tool, the cutting tool will press against the base due to its own weight. When cutting the parts, the user needs to keep applying force to the cutting tool, which is very inconvenient for the user.

[0004] This section provides background information related to this application, which is not necessarily prior art. Utility Model Content

[0005] One object of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, one object of this application is to provide a user-friendly tabletop cutting system.

[0006] To achieve the above objectives, this application adopts the following technical solution: a cutting system, comprising: a cutting tool including a housing assembly having a cutting zone, a saw blade at least partially located within the cutting zone, the saw blade in the cutting zone moving along an extension direction, the saw blade being configured to cut a workpiece to be cut; an auxiliary mechanism configured to be connected to the cutting tool, the auxiliary mechanism fixing the workpiece to be cut; the auxiliary mechanism including: a base; a support arm assembly including a support arm connected to the cutting tool, wherein the cutting tool is movably connected to the base via the support arm assembly; a connecting assembly cooperating with the support arm, the connecting assembly being configured to provide support force to the support portion; wherein, when there is no external force on the support arm, within a range where the angle between the extension direction and the base is greater than or equal to 0 degrees and less than or equal to 60 degrees, the cutting tool can remain relatively stationary with respect to the base at at least one position within the angle range.

[0007] In some embodiments, without external force, the cutting tool can remain relatively stationary with respect to the base at any position within the included angle range.

[0008] In some embodiments, without external force, the cutting tool can remain relatively stationary with respect to the base at any position on the rotation path.

[0009] In some embodiments, the cutting tool has at least a first weight and a second weight. When the cutting tool with the first weight or the second weight is mounted on the support arm, without external force, the cutting tool can remain relatively stationary with respect to the base at any position within the angle range of 10 degrees or more and 60 degrees or less between the extending direction and the base.

[0010] In some embodiments, the cutting tool includes at least a first type of cutting tool and a second type of cutting tool. When the first type of cutting tool and the second type of cutting tool are mounted on the support arm, without external force, the cutting tool can remain relatively stationary with respect to the base at any position within the angle range of 10 degrees or more and 60 degrees between the extending direction and the base.

[0011] In some embodiments, when the cutting tool is mounted on the support arm, the connecting assembly enables the cutting tool to have at least a first state, a second state, and a third state relative to the base. When the cutting tool is in the first state, it can remain relatively stationary with respect to the base at any position on the movement path without external force. When the cutting tool is in the second state, it moves upward under the drive of the support arm force without external force until it reaches the position where the cutting tool can rotate upward at the maximum angle. When the cutting tool is in the third state, it rotates downward under its own weight without external force until it reaches the position where the cutting tool can rotate downward at the maximum angle.

[0012] In some embodiments, the connecting assembly includes an adjusting component and an elastic element at least partially disposed in the support arm. The elastic element is configured to provide a supporting force to the cutting tool, and the adjusting component is configured to adjust the supporting force provided by the elastic element to switch the cutting tool between a first state, a second state, and a third state.

[0013] In some embodiments, the cutting function is configured to rotate about a first axis, the connecting assembly further includes an intermediate member that cooperates with the adjusting assembly, and a positioning member fixed to the support arm, one end of the elastic member is connected to the intermediate member, the other end of the elastic member is connected to the positioning member, and the adjusting assembly is configured to adjust the distance from the intermediate member to the first axis, thereby adjusting the support force provided by the elastic member.

[0014] In some embodiments, when the cutting tool is in a first state, the adjusting component adjusts the intermediate part to move towards the first axis until the cutting tool switches from the first state to the second state. When the cutting tool is in the first state, the adjusting component moves away from the first axis until the cutting tool switches from the first state to the third state.

[0015] In some embodiments, when the cutting tool is in the first state, during the rotation of the cutting tool, the product of the weight of the cutting tool and the vertical distance from the first axis to the center of gravity of the cutting tool and the potential energy of the elastic element and the vertical distance from the positioning element to the first axis are substantially the same.

[0016] In some embodiments, when the cutting tool is in the second state, the product of the weight of the cutting tool and the vertical distance from the first axis to the center of gravity of the cutting tool is greater than the product of the potential energy of the elastic element and the vertical distance from the positioning element to the first axis.

[0017] In some embodiments, the elastic element is specifically a spring.

[0018] The advantage of this application is that, through the cooperation of the support arm and the connecting assembly, the cutting tool mounted on the support arm can be positioned at any point along the rotation path. Attached Figure Description

[0019] Figure 1 This is a perspective view of one implementation of the cutting system;

[0020] Figure 2 yes Figure 1 A three-dimensional view of part of the cutting system shown;

[0021] Figure 3 yes Figure 2 A plan view of the cutting system shown.

[0022] Figure 4 yes Figure 4 A partial three-dimensional view of the cutting system shown;

[0023] Figure 5 yes Figure 2 A stereoscopic view of the cutting system from another perspective;

[0024] Figure 6 yes Figure 5 A partial structural diagram of the cutting system shown;

[0025] Figure 7 yes Figure 6 The diagram shows a three-dimensional view of the cutting system from another perspective, in which the second moving part cooperates with the third stop.

[0026] Figure 8 yes Figure 7A stereoscopic view of the cut as shown from other perspectives;

[0027] Figure 9 yes Figure 2 The diagram shows the cutting system rotating downwards to its maximum angle, at which point the second moving part engages with the third stop.

[0028] Figure 10 yes Figure 1 The diagram shows a three-dimensional view of the auxiliary mechanism in the cutting system, where the first movable part is engaged with the first stop.

[0029] Figure 11 yes Figure 10 Plan view of the auxiliary mechanism shown;

[0030] Figure 12 yes Figure 1 Plan view of the auxiliary mechanism shown;

[0031] Figure 13 yes Figure 12 The auxiliary mechanism shown is in perspective, in which the second movable part cooperates with the second stop.

[0032] Figure 14 yes Figure 12 An exploded view of part of the auxiliary mechanism shown. Detailed Implementation

[0033] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0034] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0035] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0036] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0037] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0038] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0039] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0040] Figure 1The diagram shows a cutting system 100, which includes at least a cutting tool 10, an auxiliary mechanism 20 for cooperating with the cutting tool 10, and a power supply mechanism for supplying power to the cutting tool 10. In this application, the cutting tool 10 is specifically described using a band saw 101 as an example, but the cutting tool 10 can also be other tools, such as an electric circular saw.

[0041] The cutting tool 10 can be used to cut parts to be cut, including but not limited to plates or pipes. In this application, the cutting tool 10 is specifically a band saw 101. The band saw 101 includes an output component for cutting the parts to be cut. Specifically, the output component is a saw blade 104.

[0042] It should be noted that the workpiece to be cut refers to the workpiece that the user needs to cut, the workpiece being cut refers to the workpiece that has been removed from the workpiece to be cut after the cutting is completed, and the remaining workpiece refers to the workpiece that remains on the workpiece to be cut after the cutting is completed. Of course, the remaining workpiece can also become a new workpiece to be cut.

[0043] The auxiliary mechanism 20 is configured to cooperate with the band saw 101 to assist the band saw 101 in completing the cutting. In some embodiments, the band saw 101 can be installed on the auxiliary mechanism 20 for cutting, or the band saw 101 can be removed from the auxiliary mechanism 20 for cutting independently.

[0044] The power supply mechanism is used to supply power to the band saw 101. The power supply mechanism can be DC power or AC power. As a feasible implementation, the power supply mechanism can be a battery pack 105. The battery pack 105 can be directly installed on the band saw 101, or the battery pack 105 and the band saw 101 can be electrically connected through a power cable.

[0045] like Figures 1 to 4As shown, the band saw 101 includes a housing assembly 102, a rotating wheel assembly, a motor, a switch assembly, and a saw blade 104. The housing assembly 102 constitutes the main external portion of the band saw 101 and can be formed by connecting one or more housings. The housing assembly 102 forms a receiving cavity and a handle portion. The switch assembly is at least partially disposed within the handle portion and is used by the user to start or stop the motor. The motor provides the power source and is at least partially disposed within the receiving cavity. The rotating wheel assembly is at least partially disposed within the receiving cavity. The rotating wheel assembly includes a drive wheel and a driven wheel. The saw blade 104 is sleeved on the drive wheel and the driven wheel, and the drive wheel and the driven wheel are spaced apart to form a cutting area 103. The user uses the saw blade 104 located in the cutting area 103 to cut the workpiece. The motor can drive the drive wheel to rotate, and the driven wheel rotates accordingly. A battery pack 105 mounting portion is formed on the housing assembly 102, and the battery pack 105 is detachably mounted to the battery pack 105 mounting portion. When the motor starts, the saw blade 104 rotates accordingly, and the saw blade 104 in the cutting area 103 moves along the extension direction.

[0046] The auxiliary mechanism 20 includes a connecting assembly 30, a support arm assembly 21, a limiting assembly 31, a second adjusting assembly 33, a third adjusting assembly 34, a first adjusting assembly 32, a clamping device 35, a second indicating assembly 37, a first indicating assembly 36, and a base 38. Some of these components share structural elements, meaning some parts can appear in multiple components, and some parts may perform multiple functions.

[0047] The base 38 constitutes the main support part of the auxiliary mechanism 20. When the band saw 101 is installed on the auxiliary mechanism 20, the base 38 is located below the band saw 101.

[0048] The support arm assembly 21 is mounted on the base 38 and is configured to connect the band saw 101 and the base 38. The support arm assembly 21 can drive the band saw 101 to move relative to the base 38; for example, it can drive the band saw 101 to rotate or move. In this embodiment, the support arm assembly 21 can drive the band saw 101 to reciprocate relative to the base 38 around a first axis 201 along a first direction 202 and a second direction 203. The support arm assembly 21 includes at least one support arm 22, one end of which is connected to the base 38, and the other end is connected to the band saw 101. The user can change the position of the band saw 101 by rotating the support arm 22. The first direction 202 is the direction in which the band saw 101 moves closer to the base 38, and the second direction 203 is the direction in which the band saw 101 moves away from the base 38. During the rotation of the band saw 101 around the first axis 201, it will inevitably drive the saw blade 104 to rotate as well. The extension direction of the saw blade 104 located in the cutting area 103 will inevitably form an angle α with the base 38 during the rotation. During the rotation of the band saw 101, the angle α is greater than or equal to -5 degrees and less than or equal to 110 degrees.

[0049] The connecting component 30 is configured to connect the support arm 22 and the band saw 101. The user can quickly install or remove the band saw 101 from the auxiliary mechanism 20 through the connecting component 30. In other words, the band saw 101 can be quickly connected or disconnected from the support arm 22 through the connecting component 30. The band saw 101 can be detached from the auxiliary mechanism 20 and used directly to cut the workpiece, or it can be installed on the auxiliary mechanism 20 to cut the workpiece.

[0050] The third adjustment component 34 is mounted on the support arm assembly 21. A portion of the structure of the third adjustment component 34 is inherited from a portion of the structure of the support arm assembly 21. Specifically, the third adjustment component 34 includes a support arm 22 and an adjustment member. The support arm 22 includes a first connecting arm and a second connecting arm, which can rotate relative to each other via the adjustment member. The first connecting arm is connected to the base 38, and the second connecting arm is connected to the band saw 101. The first and second connecting arms are rotatably or fixedly connected via the adjustment member. A second adjustment component 33 is connected to one end of the support arm assembly 21.

[0051] The second adjustment component 33 is used to adjust the cutting angle of the band saw 101. The second adjustment component 33 is set on the base 38. The second adjustment component 33 includes an adjustment block 331. The adjustment block 331 can rotate relative to the base 38. Since the band saw 101 is connected to the adjustment block 331 through the support arm assembly 21, the band saw 101 can rotate together when the adjustment block 331 rotates.

[0052] The limiting component 31 is positioned on the rotation path of the second adjusting component 33. This serves two purposes: firstly, it restricts the second adjusting component 33 from further rotation, and secondly, it allows the user to quickly adjust the component to the desired angle. In this application, the limiting component 31 is positioned at 0 degrees and 45 degrees, but it can also be set to other angles.

[0053] The second indicator component 37 can cooperate with the second adjustment component 33. When the second adjustment component 33 rotates through the corresponding angle, the second indicator component 37 can indicate the current cutting angle of the band saw 101 for the user to observe.

[0054] The clamping device 35 is used to clamp the workpiece to be cut, thereby facilitating the user to cut with the band saw 101.

[0055] The first adjustment component 32 can cooperate with the clamping device 35. The first adjustment component 32 can be set by the user to ensure that the length of the workpiece cut by the band saw 101 is consistent. Of course, the first adjustment component 32 can be set by the user multiple times, that is, the user can adjust the length of the workpiece as needed.

[0056] The first indicating component 36 is fixedly connected to the base 38. The first indicating component 36 is disposed adjacent to the clamping device 35 and can cooperate with the first adjusting component 32 to determine the length of the workpiece being cut. The first indicating component 36 is used to indicate the position of the saw blade 104 in the cutting zone 103 when the band saw 101 is at 0 degrees, thus allowing the user to better determine the length of the workpiece based on the position of the cutting line indicated by the first indicating component 36.

[0057] like Figures 2 to 8As shown, the support arm assembly 21 also includes a first movable member 221 and a second movable member 222. The adjusting block 331 has a first mounting portion 223 and a second mounting portion 224 spaced apart, with corresponding mounting holes formed on the first mounting portion 223 and the second mounting portion 224, respectively. The first movable member 221 can cooperate with the first mounting portion 223, thereby preventing the support arm 22 from leaving its current position. Specifically, the first mounting portion 223 has a first stop portion 225, and the first movable member 221 passes through the first mounting hole and cooperates with the first stop portion 225. When a user wants to move the cutting system 100, to facilitate handling and ensure smooth transport, the user typically drives the band saw 101 to rotate, adjusting the band saw 101 so that the extension direction of the saw blade 104 in the cutting area 103 of the band saw 101 is substantially parallel to the base 38, and then holds it in the current position before transporting the cutting system 100. In a concrete way, by moving the first movable member 221 inward, it engages with the first stop 225, which restricts the movement of the support arm 22, thus keeping the support arm 22 in its current position. This prevents the band saw 101 from rotating under force when the user is handling the cutting system 100, thus avoiding injury to the user. When the user wants to continue cutting with the cutting tool 10, the first movable member 221 is moved outward, separating it from the first stop 225. At this time, the user can drive the band saw 101 to rotate around the first axis 201.

[0058] The second movable member 222 cooperates with the second mounting portion 224. The second mounting portion 224 has at least a second stop portion 226 and a third stop portion 227 in the rotation direction of the support arm 22. The second movable member 222 can cooperate with either the second stop portion 226 or the third stop portion 227. When the second movable member 222 cooperates with the second stop portion 226, it is used to limit the rotation range of the support arm 22. When the second movable member 222 cooperates with the third stop portion 227, the second movable member 222 is used to hold the support arm 22 in its current position. When using the cutting tool 10 for cutting, the user operates the band saw 101 by holding it and rotating it relative to the base 38. During rotation, the angle between the cutting direction of the saw blade 104 and the base 38 may be too large or too small. If the angle is too large, the band saw 101 may flip outwards, making it difficult for the user to operate. Conversely, if the angle is too small, it may affect the user's ability to change or move the workpiece to be cut, hindering operation. By cooperating with the second movable part 222 and the second stop part 226, the rotation range of the support arm 22 is limited to a certain range, preventing the angle between the cutting direction of the saw blade 104 and the base 38 from being too large or too small, thus facilitating user operation and ensuring normal machine cutting. When the second movable part 222 cooperates with the third stop part 227, the second movable part 222 is used to hold the support arm 22 in its current position, at which point the support arm 22 rotates downwards to its lowest point. When using the cutting system 100, users inevitably encounter situations where the cutting system 100 needs to be transported to a distant location. In such cases, the user will detach the band saw 101 from the support arm 22 and then transport the auxiliary mechanism 20. If the support arm 22 is placed normally, the height of the auxiliary mechanism 20 will occupy a large amount of space. Thus, the user has to provide more space for the auxiliary mechanism 20 during transportation to accommodate more of it. By rotating the support arm 22 downward to its lowest point and then moving the second movable part 222 inward so that the second movable part 222 contacts the third stop part 227, the support arm 22 is held in its current position. At this time, because the support arm 22 is rotated downward to its lowest point, the height of the auxiliary mechanism 20 is reduced to its lowest point in the vertical direction. This greatly reduces the space required for the auxiliary mechanism 20 during transportation, allowing more tools to be placed in the transport vehicle.

[0059] Please refer to this as well. Figures 9 to 14As shown, the auxiliary mechanism 20 also includes a connecting component 23, which cooperates with the support arm 22 to provide support force to the support arm 22. When the external force applied to the band saw 101 is removed, the cooperation of the support arm component 21 and the connecting component 23 allows the band saw 101 to remain relatively stationary with respect to the base 38 at at least one position within a range where the angle between the band saw 101 and the base 38 in the extending direction is greater than or equal to 0 degrees and less than or equal to 60 degrees. Furthermore, in the absence of external force, the band saw 101 can remain relatively stationary with respect to the base 38 at any position within a range where the angle between the band saw 101 and the base 38 in the extending direction is greater than or equal to 0 degrees and less than or equal to 60 degrees. The band saw 101 mounted on the auxiliary mechanism 20 forms a benchtop tool. When the band saw 101 is performing cutting work, the user needs to mount the workpiece to be cut on the clamping device 35, and then drive the band saw 101 to bring the saw blade 104 of the band saw 101 close to the workpiece to be cut. After the cut is completed, the user lifts the band saw 101 upwards. In this scenario, after completing a cut with the band saw 101, the user needs to adjust the position of the workpiece to be cut or replace it with a new one. That is, the user does not continuously apply an external force to the band saw 101. When the user removes the applied force, the band saw 101 will rotate downwards due to its own weight G. By setting up the connecting component 23, support force is provided to the support arm 22, allowing the band saw 101 to remain relatively stationary with respect to the base 38 at any position along its movement path. Thus, after completing a cut, the user can freely lift the band saw 101 to any position, as long as the band saw 101 does not interfere with the user's ability to change or adjust the cutting position. In summary, the connecting component 23 facilitates user operation.

[0060] Furthermore, by removing the external force applied to the band saw 101, the band saw 101 can remain relatively stationary with respect to the base 38 at any position along its rotation path through the cooperation of the support arm assembly 21 and the connecting assembly 23. This allows the user to remove the external force applied to the band saw 101 immediately after cutting, and the band saw 101 remains at the position where the external force was removed, without needing to rotate it to a corresponding position. This prevents the band saw 101 from falling due to gravity G, which could injure the machine or the user. This ensures user safety and extends the service life of the cutting system 100. The band saw 101 has a first weight and a second weight. When the band saw 101 with the first weight or the second weight is mounted on the support arm 22, under no external force, within a range where the angle between the band saw 101 and the base 38 is greater than α and equal to 10 degrees and less than or equal to 60 degrees, the band saw 101 can remain relatively stationary with respect to the base 38 at any position within the angle range. The band saw 101 is connected to the support arm 22 via a connecting assembly 30. The band saw 101 can be adapted to battery packs 105 of different capacities available on the market. That is, the band saw 101 will produce different weight changes after installing battery packs 105 of different capacities. In other words, the band saw 101 has at least a first weight and a second weight. When battery packs 105 of different weights are mounted on the band saw 101, the band saw 101 can still remain stationary with respect to the base 38. Furthermore, the band saw 101 equipped with different battery packs 105 can remain relatively stationary with respect to the base 38 at any position on the rotation path of the band saw 101.

[0061] The support arm 22 can mount different types of cutting tools 10, meaning that the cutting tools 10 include at least a first type and a second type. When either the first or second type of cutting tool 10 is mounted on the support arm 22, under no external force, within an angle greater than α equal to 10 degrees and less than or equal to 60 degrees between the extending direction and the base 38, the cutting tool 10 can remain relatively stationary with respect to the base 38 at any position within this angle range. Specifically, the support arm 22 can mount band saws 101 of different styles and sizes. Different styles and sizes of cutting tools 10 have different weights. When different styles and sizes of cutting tools 10 are mounted on the support arm 22, under no external force, the cutting tool 10 can still remain relatively stationary with respect to the base 38. Furthermore, it is adapted to accommodate different styles of cutting tools 10, ensuring that the cutting tool 10 remains relatively stationary with respect to the base 38 at any position along its rotation path.

[0062] Furthermore, by adjusting the connecting component 23, the band saw 101 can have at least three states relative to the base 38: a first state, a second state, and a third state. When the band saw 101 is in the first state, it can remain relatively stationary with respect to the base 38 at any position along its movement path without external force. When the band saw 101 is in the second state, it moves upward under the force of the support arm 22 without external force, until it reaches the maximum upward rotation angle. When the band saw 101 is in the third state, it rotates downward under its own weight G without external force, until it reaches the maximum downward rotation angle.

[0063] When the cutting tool 10 is mounted on the support arm 22, the first, second and third states can be switched by adjusting the connecting component 23.

[0064] The connecting assembly 23 includes an elastic element 231, an intermediate element 232, an adjusting assembly 233, and a positioning element 234. The positioning element 234 is disposed within the first connecting arm and is fixedly connected to the first connecting arm. The elastic element 231 is at least partially disposed within the first connecting arm, with one end connected to the positioning element 234 and the other end connected to the intermediate element 232. The elastic element 231 is configured to provide support force to the band saw 101. The adjusting assembly 233 can be driven to move the intermediate element 232. During the movement of the intermediate element 232, the elastic element 231 moves along with it, thereby changing the potential energy inside the elastic element 231, also known as F1. That is, F1 changes according to the position of the intermediate element 232. The adjustment assembly 233 includes a user-operable operating component 235, an adapter 236, and a limiting component 237. The limiting component 237 is fixedly connected to the adjustment block 331. The limiting component 237 has two corresponding through holes, namely a first through hole and a second through hole. The intermediate component 232 has a through hole. The operating component 235 passes through the first through hole on the limiting component 237, then through the through hole on the intermediate component 232, and finally through the second through hole on the limiting component 237, before connecting to the adapter 236. The limiting component 237 forms a receiving space, and the intermediate component 232 is at least partially disposed within this space. The limiting component 237 forms this receiving space with four walls, and the aforementioned through holes are provided on two opposing walls. Because the intermediate component 232, the operating component 235, and the adapter 236 are connected, the user can adjust the size of F1 by operating the operating component 235 to move the distance L1 between the intermediate component 232 and the first axis 201. The adapter 236 can be a nut that mates with the operating member 235, or it can be integrally formed with the limiting member 237, that is, the limiting member 237 has threads that can mate with the operating member 235.

[0065] When the cutting tool 10 is in the first state, during the rotation of the cutting tool 10, the product of the weight G of the cutting tool 10 and the vertical distance L2 from the first axis 201 to the center of gravity of the cutting tool 10, and the product of the potential energy F1 of the elastic element 231 and the vertical distance L1 from the positioning element 234 to the first axis 201, are basically the same. This configuration allows the external force applied to the cutting tool 10 to be removed at any position during rotation, and the cutting tool 10 can stop at the current position.

[0066] When the cutting tool 10 is in the second state, during the rotation of the cutting tool 10, the weight G of the cutting tool 10 and the vertical distance L2 from the first axis 201 to the center of gravity of the cutting tool 10 are greater than the product of the potential energy F1 of the elastic element 231 and the vertical distance L1 from the positioning element 234 to the first axis 201. With this configuration, when the cutting tool 10 is driven by the user to rotate to any position, when the user removes the force applied to the cutting tool 10, the spring causes the cutting tool 10 to rotate upwards until it reaches the maximum rotational position of the support arm 22.

[0067] When the cutting tool 10 is in the third state, during the rotation of the cutting tool 10, the weight G of the cutting tool 10 and the vertical distance L2 from the first axis 201 to the center of gravity of the cutting tool 10 are less than the product of the potential energy F1 of the elastic element 231 and the vertical distance L1 from the positioning element 234 to the first axis 201. With this configuration, when the cutting tool 10 is driven by the user to rotate to any position, when the user removes the force applied to the cutting tool 10, the weight of the cutting tool 10 itself causes the support arm 22 to rotate downwards until it reaches the maximum rotational position of the support arm 22.

[0068] When the cutting tool 10 is in the first state, the adjusting component 233 adjusts the intermediate component 232 towards the first axis 201 until the cutting tool 10 switches from the first state to the second state. When the cutting tool 10 is in the first state, the adjusting component 233 adjusts the intermediate component 232 away from the first axis 201 until the cutting tool 10 switches from the first state to the third state. In other words, the user can easily change the state of the cutting tool 10 mounted on the support arm 22 simply by operating the adjusting component 233 to adjust the intermediate component 232, making it convenient for the user to operate.

[0069] In this embodiment, there are two elastic members 231, and the positioning member 234 has two ends and two ends in the middle. One end of each elastic member 231 is fixedly connected to the two ends of the positioning member 234, and the other end of each elastic member 231 is connected to the two ends in the middle.

[0070] The operating element 235 is used to bolt. The elastic element 231 is specifically a spring, wherein the larger the F1, the greater the deformation of the spring, and the smaller the F1, the smaller the deformation of the spring. The above-mentioned connecting assembly 23 has a stable structure, a simple structure, and is easy to implement.

[0071] As a specific operating method for the normal operation, transportation, or handling of the cutting system 100, when the user wants to transport the cutting system 100 for a long time, the user will choose to transport the cutting tool 10 and the auxiliary mechanism 20 in the cutting system 100 separately. The auxiliary mechanism 20 generates more transportation space during transportation. Since the support arm 22 of the auxiliary mechanism 20 has a certain height in the vertical direction, the user will adjust the position of the support arm 22 when transporting the auxiliary mechanism 20. Specifically, the operating component 235 is driven first, and then the intermediate component 232 is moved away from the first axis 201 to the limit position. At this time, the spring is relatively small, the torque generated on the spring side is also at its minimum, and the spring undergoes plastic deformation. Then, the second movable part 222 is moved outward, and the first movable part 221 is also moved outward. The support arm 22 is rotated downward to the lowest point. Then, the second movable part 222 moves inward into the support arm 22, while the first movable part 221 remains stationary, until the second movable part 222 engages with the third stop 227 on the support arm 22. At this point, the volume of this auxiliary mechanism 20 in the height direction is small, and this position is convenient for users to transport for a long time.

[0072] When a user wants to move the cutting system 100 a short distance, the user movement auxiliary mechanism 20 will directly fix the support arm 22 in one position before moving it, preventing the support arm 22 from swaying during transport. Specifically, the user first pulls the first movable part 221 outward, then rotates the support arm 22 until the extension direction of the saw blade 104 in the cutting area 103 is basically parallel to the base 38. Then, the user moves the first movable part 221 inward until it engages with the first stop 225. This restricts the rotation of the support arm 22, facilitating short-distance transport. During transport, the band saw 101 can be mounted on the support arm 22 or not.

[0073] When the user wants to switch the cutting system 100 to normal operation, the user will inevitably install the band saw 101 on the support arm 22, and then rotate the support arm 22 to drive the band saw 101 to make cuts. Specifically, the user moves the first movable part 221 away from the inside of the support arm 22, and then moves the second movable part 222 towards the inside of the support arm 22, so that the second movable part 222 contacts the second stop part 226, thereby restricting the rotation direction of the support arm 22 and preventing the band saw 101 from flipping out or hitting the base 38.

[0074] The user holds the main handle of the band saw 101, applies downward pressure, and brings the saw blade 104 of the cutting area 103 close to the workpiece to be cut. The user continues to press the main handle and completes the cut. When the cutting system 100 is in normal use, and the user wants to use the first state of the cutting tool 10, a spring is installed inside the support arm 22. As the cutting tool 10 rotates, the spring deforms and generates potential energy to counteract the weight G of the cutting tool 10 during rotation. The user adjusts the operating component 235, thereby adjusting the movement of the positioning component 234, i.e., adjusting the distance L2 between the positioning component 234 and the first axis 201. Since the spring is connected to the positioning component 234, the movement of the positioning component 234 adjusts the potential energy of the spring. When the cutting tool 10 is mounted on the support arm 22, the operating component 235 is adjusted so that, when the cutting tool 10 is in the first state, during the rotation of the cutting tool 10, the product of the weight G of the cutting tool 10 and the vertical distance L2 from the first axis 201 to the center of gravity of the cutting tool 10, and the product of the potential energy F1 of the elastic component 231 and the vertical distance L1 from the positioning component 234 to the first axis 201, are approximately the same. After adjustment, the cutting tool 10 can be used for cutting.

[0075] When the cutting system 100 is in normal use, if the user wants to switch the cutting tool 10 from the first state to the second state, the user drives the operating member 235, which then moves away from the first axis 201 until the support arm 22 can rotate the cutting tool 10 upwards from any position. This completes the adjustment, and the cutting tool 10 can then be used for cutting.

[0076] When the cutting system 100 is in normal use, if the user wants to switch the cutting tool 10 from the first state to the third state, the user drives the operating member 235, which then moves towards the first axis 201 until the support arm 22 can rotate the cutting tool 10 downwards from any position. This completes the adjustment, and the cutting tool 10 can then be used for cutting.

[0077] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A cutting system, comprising: a cutting tool comprising a housing assembly, the housing assembly being formed with a cutting zone, a saw blade being at least partially located in the cutting zone, the saw blade in the cutting zone being configured to move along an extension direction for cutting a workpiece to be cut; an auxiliary mechanism configured to be connected with the cutting tool, the auxiliary mechanism being configured to fix the workpiece to be cut; characterized in that the auxiliary mechanism comprises: a base; a support arm assembly comprising a support arm connected with the cutting tool, wherein the cutting tool is movably connected with the base through the support arm assembly; a coupling assembly cooperating with the support arm, the coupling assembly being configured to provide a support force to the support arm; wherein, in the absence of external force, the cutting tool can be kept relatively stationary with the base at at least one position within a range of an included angle between the extension direction and the base being greater than or equal to 0 degree and less than or equal to 60 degree. 2.The cutting system according to claim 1, wherein in the absence of external force, the cutting tool can be kept relatively stationary with the base at any position within the range of the included angle. 3.The cutting system according to claim 1, wherein in the absence of external force, the cutting tool can be kept relatively stationary with the base at any position on a rotation path. 4.The cutting system according to claim 1, wherein the cutting tool has at least a first weight and a second weight, and in the absence of external force, the cutting tool with the first weight or the second weight can be kept relatively stationary with the base at any position within a range of an included angle between the extension direction and the base being greater than or equal to 10 degree and less than or equal to 60 degree when the cutting tool is installed on the support arm. 5.The cutting system according to claim 1, wherein the cutting tool comprises at least a first type of cutting tool and a second type of cutting tool, and in the absence of external force, the cutting tool with the first type of cutting tool or the second type of cutting tool can be kept relatively stationary with the base at any position within a range of an included angle between the extension direction and the base being greater than or equal to 10 degree and less than or equal to 60 degree when the cutting tool is installed on the support arm. 6.The cutting system according to claim 1, wherein when the cutting tool is installed on the support arm, the cutting tool has at least a first state, a second state and a third state through the coupling assembly, and in the absence of external force, the cutting tool can be kept relatively stationary with the base at any position on a movement path when the cutting tool is in the first state, and the cutting tool is driven by a support arm force to move upward until reaching a position at which the cutting tool can be rotated upward to a maximum angle when the cutting tool is in the second state. When the cutting tool is in the third state, the cutting tool rotates downward under the effect of its own gravity until it reaches a position at which the cutting tool can rotate downward to the maximum angle.

7. The cutting system of claim 6, wherein, The coupling assembly includes an adjusting assembly and an elastic member, which are at least partially disposed in the support arm, the elastic member is configured to provide the support force to the cutting tool, and the adjusting assembly is configured to adjust the support force provided by the elastic member to switch the cutting tool between the first state, the second state and the third state.

8. The cutting system of claim 7, wherein, The cutting tool is configured to rotate around a first axis, the coupling assembly further includes an intermediate member cooperating with the adjusting assembly and a positioning member fixed to the support arm, one end of the elastic member is connected to the intermediate member, and the other end of the elastic member is connected to the positioning member, and the adjusting assembly is configured to adjust the distance between the intermediate member and the first axis to adjust the support force provided by the elastic member.

9. The cutting system of claim 8, wherein, When the cutting tool is in the first state, the adjusting assembly adjusts the intermediate member to move towards the first axis until the cutting tool switches from the first state to the second state, and the adjusting assembly moves away from the first axis until the cutting tool switches from the first state to the third state.

10. The cutting system of claim 8, wherein, When the cutting tool is in the first state, the product of the gravity of the cutting tool and the vertical distance from the first axis to the center of gravity of the cutting tool and the potential energy of the elastic member and the vertical distance from the positioning member to the first axis are substantially the same during the rotation of the cutting tool.

11. The cutting system of claim 8, wherein, When the cutting tool is in the second state, the product of the gravity of the cutting tool and the vertical distance from the first axis to the center of gravity of the cutting tool is greater than the product of the potential energy of the elastic member and the vertical distance from the positioning member to the first axis.

12. The cutting system of claim 8, wherein, The elastic member is specifically a spring.

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