Cutting system

Abstract

A cutting system comprising: a cutting tool having an output member for cutting a workpiece to be cut; an auxiliary mechanism configured to cooperate with the cutting tool; characterized in that the cutting system further comprises: a power supply mechanism configured to supply power to the cutting tool; wherein the auxiliary mechanism comprises: a base; a support arm assembly configured to be connected to the cutting tool at one end and to the base at the other end, the support arm assembly capable of moving the cutting tool relative to the base; a first indicator assembly mounted to the base, the first indicator assembly comprising an indicator plate provided in a path of movement of the output member.

Description

TECHNICAL FIELDThe present application relates to a cutting system.PRIOR ARTA cutting system of related technology may be used to cut all workable metals including stainless steel, pipes, solid bodies, etc. It is very heat, abrasion and vibration resistant and has a longer life compared to similar products. Since the cutting system has the advantages of flexible and convenient use, etc., it is widely used in industry, household and other occasions when many kinds of bars, pipes and profiles are cut.However, if the user uses the cutting system for cutting and a large number of workpieces to be cut should be cut, the user must make measurements or trial cutting before cutting and then work to allow the user to cut the workpiece as desired, but if the workpiece to be cut should be cut to a different angle or length, the user must make multiple adjustments, which is very uncomfortable for the user.This portion provides background information relevant to the present application and is not necessarily prior art.DISCLOSURE OF UTILITY MODELThe object of the present application is to solve or at least alleviate some or all of the above problems. To this end, the present application aims to provide a user-friendly cutting system.To achieve the above object, the present application adopts the following technical solution: a cutting system comprising: a cutting tool having an output member for cutting a workpiece to be cut; an assist mechanism configured to cooperate with the cutting tool; characterized in that the cutting system further comprises: a power supply mechanism configured to supply power to the cutting tool; the assist mechanism comprising: a base; a support arm assembly configured to be connected at one end to the cutting tool and at the other end to the base, the support arm assembly being capable of moving the cutting tool relative to the base; a first display assembly mounted on the base, the first display assembly comprising a display plate provided in a movement path of the output member.In some embodiments, the cutting tool is configured to rotate back and forth about a first axis with respect to the base, wherein during a first activation of the cutting tool, the output member cuts a portion of the indicator plate such that the remaining indicator plate has a new edge representing a cutting position of the cutting tool.In some embodiments, the assist mechanism further comprises a first adjustment assembly for adjusting the length of the cut workpiece, the first adjustment assembly comprising a movable rod insertable into the base and a stop block mounted on the movable rod and movable with respect to the movable rod, the stop block configured to abut the workpiece to be cut, wherein the length of the cut workpiece is adjusted by means of a change in the distance between the stop block and the cutting position.In some embodiments, the output member includes a cutting plane, and the stop block is configured to be selectively mounted on each of two sides of the cutting plane.In some embodiments, a communication hole for the passage of the movable rod is formed on the base, the movable rod is slidably disposed in the communication hole relative to the base, and the stopper block is configured to be selectively mountable to each of both ends of the movable rod.In some embodiments, the display plate is fixedly connected to the base by screws.In some embodiments, the assist mechanism further comprises a clamping device for fastening the workpiece to be cut, the clamping device comprising a clamping assembly and a locking assembly that cooperate with each other, the clamping assembly comprising a fastening member, a fixed part connected to the fastening member, a movable part cooperating with the fixed part, and a sliding surface that guides the movement of the movable part; wherein the locking assembly comprises a movable member connected to the movable part, a clamping member cooperating with the movable member, and a guide member, the clamping member and the guide member cooperating to thereby lock or release the movable part.In some embodiments, the display plate is provided at a rear end of the sliding surface, and the upper plane of the display plate is substantially flush with the sliding surface.In some embodiments, the fastener is integrally molded with the base.In some embodiments, both the fixed part and the movable part are provided with a working protection sleeve.In some embodiments, the assist mechanism further comprises a second adjustment assembly for adjusting the cutting angle and a limit assembly cooperating with the second adjustment assembly; wherein the second adjustment assembly comprises an adjustment block that rotates about a second axis and a latch assembly cooperating with the adjustment block to release or latch the adjustment block; wherein the limit assembly comprises a first angle stop block and a second angle stop block, wherein the first angle stop block and the second angle stop block are provided in the rotational path of the adjustment block and limit further rotation of the adjustment block.In some embodiments, the assist mechanism further includes a second display assembly that displays an angle, the second display assembly including a display element that rotates together with the adjustment block, and an angle scale provided on the base and distributed in the circumferential direction with respect to the second axis, the display element being displayed on the angle scale each time the adjustment block rotates.In some embodiments, the output member has a cutting plane, and the latch assembly, indicator member and clamping device are provided on substantially the same side of the cutting plane.In some embodiments, the cutting system has at least a first use state and a second use state, wherein the cutting tool is mounted on the assist mechanism in the first use state of the cutting system, wherein the cutting tool is driven to move relative to the assist mechanism and cut the workpiece to be cut, and wherein the cutting tool is detached from the assist mechanism in the second use state of the cutting system such that the cutting tool directly cuts the workpiece to be cut, wherein the cutting system further comprises a connection assembly for mounting or removing the cutting tool from the assist mechanism.In some embodiments, a saw blade located in the cutting zone moves in an extension direction, the assist mechanism further comprising: a clutch assembly cooperating with the support arm, the clutch assembly configured to provide a support force to the support arm; wherein in the absence of an external force on the support arm at an angle greater than or equal to 0 degrees and less than or equal to 60 degrees between the extension direction and the base, the cutting tool may remain stationary relative to the base at at least one position within the angle range.The advantage of the present application is: by providing a display panel, it is convenient for the user to intuitively observe the cutting position of the cutting tool.ILLUSTRATION OF UTILITY MODELFIG. 1 is a three-dimensional view of the cutting system in the present application; FIG. 2 is a three-dimensional view of the cutting system shown in FIG. 1 from a different viewpoint, wherein the cutting system is in the first use state, the adjustment block is in a home position, and the band saw is in the first state; FIG. 3 is a three-dimensional view of the cutting system shown in FIG. 1 in which the band saw is in the second state; FIG. 4 is a three-dimensional view of the cutting system shown in FIG. 1, in which the band saw is separated from the assist mechanism, the cutting system being in the second use state; FIG. 5 is a three-dimensional view of the assist mechanism in the cutting system shown in FIG. 1 ; FIG. 6 is a three-dimensional view of the assist mechanism in the cutting system shown in FIG. 1 ; FIG. 7 is a three-dimensional view of the assist mechanism shown in FIG. 6 from another viewpoint; FIG. 8 is a plan view of the assist mechanism shown in FIG. 6 ; FIG. 9 is a plan view of the assist mechanism shown in FIG. 8 with the adjustment block in the maximum adjustment position; FIG. 10 is a three-dimensional view of the assist mechanism shown in FIG. 9; FIG. 11 is an exploded view of a part of the structure of the assist mechanism shown in FIG. 6 ; FIG. 12 is a three-dimensional view of the assist mechanism shown in FIG. 11 from another viewpoint; FIG. 13 is an exploded view of a part of the structure of the cutting system shown in FIG. 1 ; FIG. 14 is an exploded view of the cutting system shown in FIG. 1 and a floor stand; FIG. 15 is a top view of another embodiment of the support arm assembly in the cutting system; FIG. 16 is a three-dimensional view of a part of the structure of the cutting system shown in FIG. 15 ; FIG. 17 is a three-dimensional view of the cutting system shown in FIG. 16 from a different angle of view; FIG. 18 is a schematic view of a part of the structure of the cutting system shown in FIG. 17 ; FIG. 19 is a three-dimensional view of the cutting system shown in FIG. 18 from another viewpoint, wherein the second movable member cooperates with the third stopper part; FIG. 20 is a three-dimensional view of the cutting system shown in FIG. 19 from a different angle of view; FIG. 21 is a three-dimensional view of the cutting system shown in FIG. 15 rotated downwardly to a maximum angle with the second movable member cooperating with the third stopper member; FIG. 22 is a three-dimensional view of the assist mechanism in the cutting system shown in FIG. 15 with the first movable member cooperating with the first stopper part; FIG. 23 is a plan view of the assist mechanism shown in FIG. 22 ; FIG. 24 is a plan view of the assist mechanism shown in FIG. 15 ; FIG. 25 is a three-dimensional view of the assist mechanism shown in FIG. 24, wherein the second movable member cooperates with the second stopper part; FIG. 26 is an exploded view of a part of the structure of the assist mechanism shown in FIG. 24.CONCRETE EMBODIMENTSBefore any embodiments of the present application are explained in detail, it should be understood that the application of the present application is not limited to the structural details and assembly arrangements set forth in the following description or shown in the accompanying drawings above.In the present application, the use of the terms "comprise", "contain", "have" or any other variant thereof aims at covering a nonexclusive inclusion, such that an operation, a method, an object or a device which / which comprises a series of elements comprises not only these elements but also further elements which are not explicitly listed or else elements which this operation, this method, this object or this device inherently possesses. In the absence of further restrictions, an element bounded by the statement "comprise... does not exclude that in an operation, a method, an object or a device which / which comprises said element, a further identical element is additionally present.In the present application, the term "and / or" is a description of an association relationship between connected objects and indicates that three relationships may exist. For example, "A and / or B" may mean that only A is present, both A and B are present, or only B is present. Moreover, the sign " / " in the present application generally means that there is an "and / or" relationship between the front and rear connected objects.In the present application, the terms "connecting", "coupling", "coupling", and "mounting" may be direct connecting, coupling, coupling, or mounting, or indirect connecting, coupling, coupling, or mounting. In this case, a direct connection means, for example, that two parts or assemblies are connected to one another without an intermediate element, and an indirect connection means that two parts or assemblies are each connected to at least one intermediate element and the two parts or assemblies are connected by means of the intermediate element. Moreover, the terms "connecting" and "coupling" are not limited to physical or mechanical connecting or coupling, but may also include electrical connecting or coupling.In the present application, one of ordinary skill in the art understands that relative terms (e.g., "about," "about," "substantially," etc.) used in connection with number or conditions include the stated values and have the meaning apparent from the context. Relative terms include, for example, at least a degree of error associated with measurement of a particular value, a tolerance associated with a particular value caused by manufacture, assembly, use, etc. Such terms should also be considered a disclosure of a range defined by the absolute values of the two endpoints. Relative terms may refer to the addition or subtraction of a percentage (e.g., 1%, 5%, 10% or more) of the stated value. Values that do not use relative terms should also be disclosed as certain values with tolerances. Moreover, the term "substantially," when used to indicate a relative angular relationship (e.g., substantially parallel, substantially perpendicular), may refer to the addition or subtraction of a particular value from degrees (e.g., 1 degree, 5 degrees, 10 degrees, or more) to the indicated angle.In the present application, a person skilled in the art understands that a function performed by a package may be a function performed by a package, a plurality of packages, a part, or a plurality of parts. Similarly, a function performed by part may be a function performed by one part, assembly, or combination of multiple parts.In the present application, the terms "upper", "lower", "left", "right", "front", "rear" and other orientation terms are described with reference to the orientation and position relationships illustrated in the accompanying drawings, and are not to be understood as limiting the embodiments of the present application. Furthermore, in the context, the "connecting" of an element "above" or "below" of another element is to be understood to mean that the element can be connected directly or else in the presence of an intermediate element "above" or "below" of the other element. It should also be understood that the terms top, bottom, left side, right side, front, back and other orientation terms represent not only positive orientations, but may also be understood as side orientations. For example, "bottom" may also mean "directly bottom", "left bottom", "right bottom", "front bottom", and "rear bottom", etc.FIG. 1 shows a cutting system 100 comprising at least one cutting tool, an auxiliary mechanism 10 for cooperation with the cutting tool and a power supply mechanism 102 for supplying power to the cutting tool.For convenience in describing the technical solution in the present application, the terms "upper", "lower", "front", "rear", "left" and "right" as illustrated in FIG. 1 are defined herein, that is, the terms "upper", "lower", "front", "rear", "left" and "right" which will be described below in the present application refer to the state of the band saw 20 when it is in the position illustrated in FIG. 1 in the absence of specific description. The cutting tool may be used for cutting the workpiece 29 to be cut and the like, and the workpiece 29 to be cut includes a plate or a pipe, but is not limited thereto. In the present application, the cutting tool is specifically the band saw 20. The output element is in particular a saw blade 25.Here, note that the workpiece to be cut refers to the workpiece to be cut by the user, the cut workpiece refers to the workpiece cut from the workpiece to be cut after cutting, and the remaining workpiece refers to the workpiece remaining on the workpiece to be cut after cutting, and the remaining workpiece may naturally also become a new workpiece to be cut.The assist mechanism 10 is configured to cooperate with the band saw 20 to thereby assist the band saw 20 in cutting, wherein in some embodiments, the band saw 20 may be mounted to the assist mechanism 10 and then cut, or the band saw 20 may be removed from the assist mechanism 10 and then cut alone.The power supply mechanism 102 is used to supply power to the band saw 20, and the power supply mechanism 102 may perform a DC power supply or an AC power supply. In one possible embodiment, the power supply mechanism may be a battery pack 103 that can be directly disposed on the band saw 20, or electrical connection between the battery pack 103 and the band saw 20 may be enabled via a power cord.As shown in FIGS. 1-4, the band saw 20 includes a housing assembly 21, a rotary wheel assembly 22, a motor, and a switch assembly 23. the housing assembly 21 forms the main outer shape of the band saw 20 and may be comprised of one or more housings connected together. The housing assembly 21 forms a receiving cavity and a handle portion 24 in which the switch assembly 23 is at least partially disposed, the switch assembly 23 being used for user operation to activate or deactivate the motor. The motor is used to provide a power source, the motor being at least partially disposed in the receiving cavity. The rotary wheel assembly 22 is at least partially disposed in the receiving cavity. The rotary gear assembly 22 includes a drive gear and a driven gear upon which the saw blade 25 is disposed, the drive gear and the driven gear being spaced apart from each other to form a cutting zone 26, wherein the user uses the saw blade 25 located in the cutting zone 26 to cut the workpiece 29 to be cut. The motor may drive the drive gear to rotate and the driven gear rotates with it. A mounting part 27 for the battery pack 103 is formed on the housing assembly 21, and the battery pack 103 is detachably mounted on the mounting part 27 for the battery pack 103.The assist mechanism 10 includes a link assembly 150, a bracket assembly 120, a limit assembly 130, a second adjustment assembly 140, a third adjustment assembly 129, a first adjustment assembly 160, a clamp 170, a second display assembly 180, a first display assembly 190, a worktable adjustment assembly 111, and a base 110. There are cases where some partial structures in the above-mentioned assemblies are shared, i.e., some of the parts may be present in multiple assemblies, and there are cases where some parts perform multiple functions.The base 110 constitutes the main support part of the assist mechanism 10, and the base 110 is located below the band saw 20 when the band saw 20 is mounted on the assist mechanism 10.The support arm assembly 120 is mounted to the base 110 and is configured to connect the band saw 20 to the base 110. The support arm assembly 120 is capable of moving the band saw relative to the base 110, for example, the support arm assembly 120 is capable of driving the band saw 20 to rotate or move, and in this embodiment, the support arm assembly 120 is capable of driving the band saw 20 to rotate back and forth relative to the base 110 about the first axis 104 in the first direction 106 and the second direction 107. The support arm assembly 120 includes at least one support arm 121 connected at one end to the base 110 and at the other end to the band saw 20. The user can change the state of the position of the band saw 20 by rotating the support arm 121. Here, the first direction 106 is a direction in which the band saw 20 approaches the base 110, and the second direction 107 is a direction in which the band saw 20 moves away from the base 110. When the band saw 20 rotates about the first axis 104, the saw blade 25 is inevitably rotated, during the rotation, the extending direction of the saw blade 25 in the cutting zone 26 inevitably forms an angle α with the base 110, during the rotation of the band saw 20, the angle α is greater than or equal to -5 degrees and less than or equal to 110 degrees.The connection assembly 150 is configured to connect the support arm 121 to the band saw 20. The user may quickly mount or remove the band saw 20 from the assist mechanism 10 by the connection assembly 150, or it may be said that the band saw 20 may be quickly connected to or detached from the support arm 121 by the connection assembly 150, and the band saw 20 may be detached from the assist mechanism 10 and thus used directly for cutting the workpiece 29 to be cut, or may be mounted on the assist mechanism 10 to cut the workpiece 29 to be cut.The third adjustment assembly 129 is provided on the bracket assembly 120. And a part of the structure of the support arm assembly 120 serves as a part of the structure of the third adjustment assembly 129. In particular, the third adjustment assembly 129 includes a support arm 121 and an adjustment member, the support arm 121 including a first link arm 1213 and a second link arm 1214, the first link arm 1213 and the second link arm 1214 being capable of rotating relative to each other by the adjustment member. The first link arm 1213 is connected to the base 110, and the second link arm 1214 is connected to the band saw 20, wherein the first link arm 1213 and the second link arm 1214 are capable of rotating or being firmly connected to each other by the adjustment member. One end of the support arm assembly 120 is connected to the second adjustment assembly 140.The second adjustment assembly 140 is used to adjust the cutting angle of the band saw 20, the second adjustment assembly 140 being provided on the base 110 and including an adjustment block 141 capable of rotating about the second axis 105 relative to the base 110, because the band saw 20 is connected to the adjustment block 141 through the bracket assembly 120, the adjustment block 141 may, when rotating, drive the band saw 20 to rotate about the second axis 105.The limiting assembly 130 is provided in the rotational path of the second adjustment assembly 140 so that, on the one hand, the further rotation of the second adjustment assembly 140 is limited and, on the other hand, the user is enabled to set to the corresponding angular position more quickly. In the present application, the restriction assembly 130 is set to the positions of 0 degrees and 45 degrees, but it may be set to other angles as a matter of course.The second indicator assembly 180 may cooperate with the second adjustment assembly 140, wherein the second indicator assembly 180 may indicate the current cutting angle of the band saw 20 as the second adjustment assembly 140 rotates the corresponding angle such that the user may observe the cutting angle.The clamp 170 serves to clamp the workpiece to be cut and thus facilitates the user to cut with the band saw 20.The first adjustment assembly 160 may cooperate with the clamp 170 and be adjusted by the user such that the length of the cut workpieces after cutting with the band saw 20 is the same. Of course, the first adjustment assembly 160 may be adjusted multiple times by the user, i.e., the user may adjust the length of the cut workpiece as needed.The first display assembly 190 is fixedly connected to the base 110. The first indicator assembly 190 is provided proximate the clamp 170 and is operable to cooperate with the first adjustment assembly 160 to determine the length of the cut workpiece. The first indicator assembly 190 is used to indicate the position of the saw blade 25 of the cutting zone 26 at a 0 degree angle of the band saw 20, so that it facilitates the user to better determine the length of the cut workpiece corresponding to the position of the cut line displayed by the first indicator assembly 190.Referring to FIGS. 6, 7, 11 and 12 together, the support arm assembly 120 includes a first link arm 1213, a second link arm 1214, an energy storage member 122, a link shaft 123, a rotation shaft 124, a first link pin 125, a second link pin 126, a first movable member 127, and a second movable member 128. The first link arm 1213 and the second link arm 1214 are connected to form the above-described support arm 121. The connection assembly 150 is provided at the upper end of the support arm 121, and the lower end of the support arm 121 is connected to the base 110, specifically, the lower end of the support arm 121 is connected to the adjustment block 141. The adjusting block 141 is provided with a first mounting part 142 and a second mounting part 143 spaced apart from each other, and the first mounting part 142 and the second mounting part 143 have formed thereon corresponding mounting holes, namely, a first mounting hole 1421 and a second mounting hole 1431. The first link arm 1213 is provided with a first end and a second end spaced apart from each other, at the first end and the second end, a third mounting hole and a fourth mounting hole are formed which are respectively disposed, the first end and the second end being provided at least partially inside the first mounting part 142 and the second mounting part 143. The connecting shaft 123 is configured to be passed through the first mounting hole 1421, the second mounting hole 1431, the third mounting hole, and the fourth mounting hole, thereby connecting the first connecting arm 1213 to the adjusting block 141, and the connecting shaft 123 is rotatably connected to the first mounting part 142 and the second mounting part 143, i.e., the connecting shaft 123 is drivable and thus rotatable about the first axis 104. There are a first state and a second state that can be held during the rotation of the band saw 20 driven by the support arm 121, and when the band saw 20 is mounted on the support arm 121 and the support arm 121 is in the first state, the band saw 20 and the assist mechanism 10 are in a state in which they can be operated, i.e., the band saw 20 is tilted to a state in which it is close to the base 110, the saw blade 25 of the cutting zone 26 having a cutting direction 108 substantially parallel to the base 110. When the band saw 20 is in the first state, it is convenient for the user to wear it. When the support arm 121 is in the second state, the support arm 121 is unfolded relative to the base 110, wherein the cutting direction 108 of the saw blade 25 in the cutting zone 26 is substantially perpendicular to the base 110. When the band saw 20 is in the second state, the user can mount or remove the band saw 20 in the current state.The rotation shaft 124 is fitted on the outer periphery of the connection shaft 123 and provided centrally between the first end and the second end. The energy storage element 122 is slid on the outer periphery of the rotation shaft 124. The first movable member 127 can cooperate with the first mounting part 142 to limit the support arm 121 and prevent it from coming out of the current state. Specifically, the first mounting part 142 includes a first stopper part 1411 and a second stopper part 1412, and the support arm 121 passes the first stopper part 1411 and the second stopper part 1412 during rotation about the first axis 104. A first through hole 1212 that can respectively cooperate with the first stopper part 1411 and the second stopper part 1412 is formed on the support arm 121, and the first movable member 127 is configured to cooperate with the first mounting part 142 through the first through hole 1212. Specifically, when the first movable member 127 cooperates with the first stopper part 1411, the first stopper part 1411 prevents the support arm 121 from rotating in the second direction 107 to the second state, and the first stopper part 1411 holds the support arm 121 in the first state. When the first movable member 127 cooperates with the second stopper part 1412, the second stopper part 1412 prevents the support arm 121 from rotating in the first direction 106 to the first state, and the second stopper part 1412 holds the support arm 121 in the second state. When the first movable member 127 is separated from the first mounting part 142, the support arm 121 can freely rotate about the first direction 106 or the second direction 107 with the first axis 104 as an axis.Specifically, the support arm 121 is provided with a first connecting pin 125 that is at least partially provided in the first through hole 1212 and is capable of cooperating with the first movable member 127. The first movable member 127 is provided with a first positioning part and a second positioning part that cooperate with the first connecting pin 125. When the first connecting pin 125 is in contact with the first positioning part, the first movable member 127 is configured to be able to contact the first stopper part 1411 or the second stopper part 1412, and when the first connecting pin 125 is in contact with the second positioning part, the first movable member 127 does not contact the first mounting part 142.The second mounting part 143 is provided with a second through hole, and the second movable member 128 is configured to be engageable with the energy storage member 122 through the second through hole. When the second movable member 128 cooperates with the energy storage member 122 and the band saw 20 moves together with the support arm 121 in the first direction 106, the energy storage member 122 may generate a force on the support arm 121 that prevents the band saw 20 from approaching the base 110, and the greater the rotation angle of the support arm 121, the greater the force generated by the energy storage member 122. In this way, as the band saw 20 approaches the base 110, the heavier weight of the band saw 20 itself will not cause the other end of the band saw 20 to directly strike the base 110. When the second movable member 128 is separated from the energy storage member 122, there is no force interaction between the energy storage member 122 and the support arm 121, so that the rotation of the support arm 121 with respect to the base 110 becomes more flexible and unobstructed.The second mounting part 143 is provided with a second connecting pin 126 that is at least partially provided in the second through hole and is engageable with the second movable member 128. A third positioning part and a fourth positioning part, which cooperate with the second connecting pin 126, are provided on the second movable member 128. When the second connecting pin 126 is in contact with the third positioning part, the second movable member 128 is in contact with the energy storage member 122, and the energy storage member 122 can apply a force to the support arm 121 during the rotation of the support arm 121. When the second connecting pin 126 is in contact with the fourth positioning part, the second movable member 128 is separated from the energy storage member 122, and the energy storage member 122 does not exert a force on the support arm 121 and rotates together with the support arm 121.In particular, the energy storage element 122 has two ends, wherein one end of the energy storage element 122 is fixedly connected to the first connecting arm 1213, and the other end of the energy storage element 122 is configured to cooperate with the second movable element 128. That is, when the second connecting pin 126 is in contact with the third positioning part, the second movable member 128 abuts on the end of the energy storage member 122, and the second movable member 128 prevents the energy storage member 122 from rotating together with the support arm 121. When the second connecting pin 126 is in contact with the fourth positioning part, the second movable member 128 is separated from the energy storage member 122, which always rotates together with the support arm 121 during the rotation of the support arm 121. In one embodiment, the energy storage element 122 is, in particular, a torsion spring.The first movable member 127 and the second movable member 128 are both substantially elongated. The first movable member 127 includes a first gripping part, a first positioning part, a second positioning part, and a first adjusting part, and the above parts are sequentially distributed along an extending direction of the first movable member 127. The first gripping part is provided at one end of the first movable member 127 and is used for operation by a user. The first adjustment part is provided at the other end of the first movable member 127 and is used for cooperation with the first stopper part 1411 and the second stopper part 1412. The first positioning part and the second positioning part are provided centrally between the first gripping part and the first adjusting part and are spaced apart from each other in the extending direction of the first movable member 127, wherein the first positioning part and the second positioning part are formed by outward protrusions in the circumferential direction of the first movable member 127, in particular. The first connecting pin 125 is at least partially located between the first positioning part and the second positioning part, and it can also be understood that the distance by which the first movable member 127 can move substantially corresponds to the distance between the first positioning part and the second positioning part. With respect to the mounting direction, the first movable member 127 is first inserted into the first through hole 1212, and then the first connecting pin 125 is inserted into the first through hole 1212 in a direction perpendicular to the insertion direction of the first movable member 127 with the insertion position of the first connecting pin 125 between the first positioning part and the second positioning part, so that the first movable member 127 can move within the first through hole 1212 and is not detached from the support arm 121.The second movable member 128 includes a second gripping part, a third positioning part, a fourth positioning part, and a second adjusting part, and the above parts are sequentially distributed along an extending direction of the second movable member 128. The second gripping part is used for operation by a user. The second gripping part is provided at one end of the second movable member 128, and the second adjusting part is provided at the other end of the second movable member 128, and is used to cooperate with the third stopper part and the fourth stopper part. The third positioning part and the fourth positioning part are provided centrally between the second gripping part and the second adjusting part and are spaced apart from each other in the extending direction of the second movable member 128, wherein the third positioning part and the fourth positioning part are formed by outward protrusions in the circumferential direction of the second movable member 128, in particular. The second connecting pin 126 is at least partially located between the third positioning part and the fourth positioning part, and it can also be understood that the distance by which the second movable member 128 can move substantially corresponds to the distance between the third positioning part and the fourth positioning part. With respect to the mounting direction, the second movable member 128 is first inserted into the second through hole, and then the second connecting pin 126 is inserted into the second through hole in a direction perpendicular to the insertion direction of the second movable member 128, with the insertion position of the second connecting pin 126 being between the third positioning part and the fourth positioning part, so that the second movable member 128 can move within the second through hole and is not detached from the second mounting part 143.As illustrated in FIG. 13, the link assembly 150 is provided at one end of the support arm 121, or it can be said that the link assembly 150 is provided at the second link arm 1214. The connection assembly 150 is used to mount and remove the band saw 20. The connecting assembly 150 includes a support arm 121 connected to the adjusting block 141, and an operating handle 151 that can be passed through the support arm 121 to be connected to the housing assembly 21 of the band saw 20. When the band saw 20 is mounted to the link assembly 150, the support arm 121 abuts the band saw 20. The second link arm 1214 is provided with a third through hole through which the operation handle 151 can be partially passed. The end of the second link arm 1214 also includes a receiving space 1211 capable of receiving a part of the housing assembly 21, the receiving space 1211 communicating with the third through hole. A connecting part 28 is formed on the housing assembly 21 in contact with the second connecting arm 1214, the connecting part 28 may be at least partially located within the receiving space 1211 and has a latch part engageable with the operating handle 151, the operating handle 151 passing through the third through hole to abut on the latch part within the receiving space 1211, the second connecting arm 1214 being connected to the band saw 20 at this time and the operating handle 151 being disconnected from the latch part, whereupon the second connecting arm 1214 is disconnected from the band saw 20. Specifically, the operation handle 151 and the engaging part are screwed, the end of the operation handle 151 is externally threaded, and the engaging part is a groove in which internal threads are provided. In order to ensure the stability of connection between the band saw 20 and the support arm 121, the connection assembly 150 further includes a positioning screw provided on the outside of the accommodation space 1211 and configured to be able to abut on the axial direction of the operation handle 151, the positioning screw being screwed to the accommodation space 1211, and when the operation handle 151 is inserted into the accommodation space 1211 and tightened with the connection part 28, the positioning screw is tightened so that the positioning screw comes into contact with the operation handle 151 until the positioning screw abuts on the operation handle, thereby ensuring the stability of connection between the support arm 121 and the band saw 20.Connected to the other end of the bracket assembly 121 is a second adjustment assembly 140 connected to the base 110 and capable of driving the band saw 20 to rotate about the second axis 105 relative to the base 110. The second adjustment assembly 140 includes an adjustment block 141, a connector, an adjustment member, and a latch assembly 144. The link passes through the adjustment block 141 to connect the adjustment block 141 to the base 110, and the adjustment block 141 may be driven to rotate about the link as an axis forward and rearward, and the latch assembly 144 may be driven to rotate the adjustment block 141 as well. A guide rail is formed on the base 110 for movement of the latch assembly 144, the guide rail extending in a direction substantially circumferentially about the second axis 105. The adjustment member is mounted to the adjustment block 141 through the guide rail and can rotate together with the adjustment block 141, and the adjustment member and the adjustment block 141 can be screwed together, in particular.The latch assembly 144 is used to latch the adjustment block 141. The latch assembly 144 includes a handle, an intermediate member, an elastic member, a sleeve, and an abutting member. A hole is formed on the adjustment block 141, wherein the abutting member can cooperate with the guide rail after passing through the hole on the adjustment block 141, i.e., when the abutting member comes into contact with and abuts the guide rail, the adjustment block 141 remains fixed with respect to the base 110, and when the abutting member is released from the guide rail, the user can move the adjustment key to drive the adjustment block 141 to rotate about the second axis 105. The intermediate element is screwed to the abutting element, wherein the handle can be held and operated by the user and is pushed on the outer side of the intermediate element, wherein a part of the intermediate element protrudes from the handle, wherein the elastic element is pushed on the intermediate element, and wherein one end of the elastic element abuts on the handle and the other end abuts on the sleeve. The intermediate member is screwed to the abutting member partly passing through the guide rail into the intermediate member, wherein the user can rotate the handle to attract the intermediate member and the abutting member, thereby locking the adjusting block 141 to the base 110, and wherein the user can rotate the handle to loosen the intermediate member and the abutting member, so that the user can drive the adjusting block 141 to rotate by holding the handle.The first mounting part 142 and the second mounting part 143 are formed on the adjustment block 141, which are connected to the first connecting arm 1213, wherein a rotation of the adjustment block 141 about the second axis 105 in the forward direction is a positive rotation and in the rearward direction is a reverse rotation, wherein the band saw 20 is connected to the adjustment block 141 and a rotation of the adjustment block 141 can cause the band saw 20 to be simultaneously rotated, so that the position of the saw blade 25 on the band saw 20 changes accordingly. When the saw blade 25 is driven for cutting, the saw blade 25 in the cutting zone inevitably forms a cutting plane P. In the present application, it is defined that the cutting angle of the band saw 20 is 0 degrees when the cutting direction 108 of the saw blade 25 in the cutting zone 26 is substantially parallel to the left-right direction, and that the cutting angle changes with the rotation of the saw blade 25 when the saw blade 25 rotates together with the adjustment block 141.In the rotational path of the adjustment block 141, the auxiliary mechanism 10 comprises a limiting assembly 103 which cooperates with the adjustment block 141 and comprises a first angular stop block 131 and a second angular stop block 132. Due to the requirements of the working conditions, the cutting angle of the band saw 20 is generally limited, and it can also be understood that the rotation angle of the adjustment block 141 is limited, i.e., in the rotation path of the adjustment block 141, two angle stopper blocks are provided, which are defined here as the first angle stopper block 131 and the second angle stopper block 132, wherein the adjustment block 141 abuts against the first angle stopper block 131 when the cutting angle of the band saw 20 is 0 degrees, and wherein the adjustment block 141 abuts against the second angle stopper block 132 when the cutting angle of the band saw 20 corresponds to the maximum predetermined position. That is, the adjustment block 141 may be rotated only in the range formed by the first angle stopper block 131 and the second angle stopper block 132. The first angle stopper block 131 and the second angle stopper block 132 may be provided at any position as long as further rotation of the adjustment block 141 can be restricted, in this embodiment, the first angle stopper block 131 and the second angle stopper block 132 are provided on the base 110 and have substantially the same structure, the first angle stopper block 131 including a restricting part and a restricting screw. A restriction part screwed to the restriction screw is formed on the base 110, the restriction part is specifically a through hole with internal threads, and the restriction screw partially passes through the restriction part. During the rotation of the adjustment block 141, the adjustment block 141 abuts against the limiting screw protruding from the limiting part, i.e. the limiting screw limits a further rotation of the adjustment block 141. The cutting angle refers to the angle between the cutting plane P of the saw blade 25 and the left-right direction. It may also be understood as the angle between the cross section of the workpiece 29 to be cut and the horizontal plane after the band saw 20 has cut the workpiece 29 to be cut.With further reference to FIGS. 8 to 10, during the rotation of the adjustment block 141, at least an initial position and a predetermined adjustment position are present, wherein the cutting angle of the band saw 20 is 0 degrees when the adjustment block 141 is in the initial position, i.e., the surface to be cut after the cutting by the user is completed is substantially parallel to the left-right direction, and wherein the cutting angle of the band saw 20 may be located at any position corresponding to an angle greater than 0 degrees when the adjustment block 141 is in the predetermined adjustment position, i.e., the surface to be cut cut by the user intersects with the left-right direction. The maximum set setting position may be set at different positions that are set at different positions depending on the maximum cutting angle by which the band saw 20 can cut. In this embodiment, the cutting angle of the band saw 20 is set to 45 degrees, that is, when the cutting angle of the band saw 20 is 45 degrees, the position where the adjustment block 141 is located is the maximum set position. The user can set between the initial position and the maximum preset setting position. With this setting, the user can select the rotation angle according to the actual situation to cut the workpiece 29 to be cut into the desired member.The first angle stopper block 131 in the limit assembly 130 is provided at a position where the adjustment block 141 abuts the first angle stopper block 131 when the cutting angle of the band saw 20 is 0 degrees, and similarly, the second angle stopper block 132 in the limit assembly 130 is provided at a position where the adjustment block 141 abuts the second angle stopper block 132 when the cutting angle of the band saw 20 is 45 degrees. When the user cuts with the band saw 20, the horizontal cutting and the 45-degree cutting are generally the most frequently used cutting methods, and by adjusting the limit assembly 130, the user can directly rotate the adjustment block 141 to the position where it abuts the limit assembly 130, so that the cutting angle desired by the user can be achieved. It is not necessary for the user to use a slide gauge or other tools to measure the angle and then to rotate the adjustment block 141, and it is also not necessary to properly align the adjustment block 141 as it rotates. The user can easily adjust the angle.The band saw 20 can rotate at various angles as required under actual operating conditions. In order to facilitate the user to observe the current rotation angle of the band saw 20, the assist mechanism 10 further includes a second display assembly 180 that is mounted on the adjustment block 141 and can rotate together with the adjustment block 141. The second display assembly 180 includes a display element 181, a fixation element, and an angle scale 182. The indicator 181 cooperates with the angle scale 182 to indicate the current cutting angle of the band saw 20. The fixing member is used for mounting the display member 181 to the adjustment block 141. In particular, an angle scale 182 is provided on the base 110, which is distributed in the circumferential direction around the second axis 105, wherein the angle scale 182 is provided in the vicinity of the guide rail and is firmly connected to the base 110. The fixing element passes through the display element 181 and fixedly connects the display element 181 to the adjustment block 141. When the display member 181 is mounted on the adjustment block 141 through the fixing member, the display member 181 always displays on the angle scale 182, so that the adjustment block 141 rotates upon driving by the user and drives the second display assembly 180 to move together, the display member 181 displays the corresponding angle scale 182 after the position change, which facilitates the observation of the rotation angle of the band saw 20 to the user, and also facilitates the user to adjust the actual angle upon the cutting operation.The assist mechanism 10 further includes a clamp 170 mounted on the base 110. The clamp 170 includes a clamp assembly 171 and a lock assembly 176, wherein the clamp assembly 171 is used for clamping the workpiece 29 to be cut and the movable assembly is used for locking the clamp assembly 171 so that the clamp assembly 171 and the workpiece 29 to be cut remain relatively fixed. The clamping assembly 171 includes a fastener 172, a fixed part 173, a movable part 174, and a sliding surface 175 for moving the movable part 174. The fastener 172 is fixedly connected to the base 110 or integrally formed. The fixed part 173 is fixedly connected to the fixing member 172, and the movable part 174 is capable of moving relative to the fixed part 173. Both the fixed part 173 and the movable part 174 are mounted on the fixing member 172, and the movable part 174 can be driven by the third movable member 177 so that the movable part moves toward or away from the fixed part 173. A placing surface is used to guide the movable member while sliding the sliding surface 175 between the fixed part 173 and the movable part 174 becomes larger or smaller with the movement of the movable part 174, so that when the sliding surface 175 exposed between the fixed part 173 and the movable part 174 is able to place the workpiece 29 to be cut, the user can place the workpiece 29 to be cut on the sliding surface 175, and then the fixed part 173 and the movable part 174 cooperate to lock or release the workpiece 29 to be cut. The placement surface is firmly connected to the fastening element 172 or is formed in one piece and lies substantially in one plane.The movable assembly comprises a clamping element 178, a third movable element 177 and a guiding element 179, wherein the third movable element 177 can be driven by a user to set the movable part 174 in motion, wherein the third movable element 177 is firmly connected to the movable part 174 or is integrally formed, i.e. when the third movable element 177 is driven by a user to move in a left-right direction, the movable part 174 moves with it. The clamping member 178 serves to limit the movement of the third movable member 177. The guide element 179 is fixedly connected to the fastening element 172 and movably connected to the clamping element 178. The third movable member 177 is partially in contact with the guide member 179 and is capable of moving relative to the guide member 179. The guide member 179 cooperates with the clamping member 178, thereby limiting the movement of the third movable member 177.The clamping element 178 is pivotally connected to the guide element 179 and comprises an actuating part and a clamping part, wherein the guide element 179 comprises a guide part which interacts with the clamping part. The operation part may be used for operation to rotate the clamping member 178 relative to the guide member 179, wherein the clamping part and the guide part have a semicircular shape, and wherein a part of the third movable member 177 that cooperates with the clamping member 178 and the guide member 179 has a cylindrical shape, i.e., the clamping part and the guide part are disposed on the outer periphery of the third movable member 177. Threads are formed on the clamping part and threads are also provided on the third movable element 177 which cooperates with the clamping element 178, so that the user can move the third movable element 177 when the thread on the clamping part is separated from the thread on the third movable element 177. When the thread on the clamping part abuts the thread on the third movable part 177, the third movable part 177 is limited in movement, so that the fixed part 173 can remain fixed relative to the movable part 174.In one embodiment, the fixed part 173 and the movable part 174 may be connected to a corresponding work protection sleeve 200 that serves to protect the workpiece 29 to be cut, in order to avoid damage to the workpiece 29 to be cut when the fixed part 173 and the movable part 174 lock the workpiece 29 to be cut under a force. The working protection sleeve 200 is detachably fixedly connected to the fixed part 173 and the movable part 174. Specifically, the work protection sleeve 200 may be mounted to the fixed part 173 or / and the movable part 174 by means of (not limited to) screws, pins, rivets, movable clamps, magnetic suction, and the like. In this embodiment, the working protective sleeve 200 can be firmly connected to the fixed part 173 and the movable part 174 by magnetic suction. The work protecting sleeve 200 may be made of a flexible material or the like, for example, rubber or the like.The clamp 170 may be driven by the user to assume a movable state and a locked state, and when the clamp 170 is in the locked state, the workpiece 29 to be cut remains fixed relative to the base 110 and the user may cut it with the band saw 20. When the clamp 170 is in the movable state, the workpiece 29 to be cut is released, and the user can take off or move the workpiece 29 to be cut.Specifically, the operation method operates as follows: when the user needs to lock the workpiece 29 to be cut, the user drives the operation part to rock the clamping member 178 upward so that the clamping part and the third movable member 177 are separated, and then the user moves the third movable member 177 toward the fixed part 173 until both the fixed part 173 and the movable part 174 abut on the workpiece 29 to be cut, at which time the user rotates the clamping member 178 downward and the threads of the clamping part and the movable part 174 contact, and the user further rotates the third movable member 177 toward the fixed part 173 until the thread of the clamping part abuts on the thread of the third movable member 177, i.e., the third movable member 177, the clamping member 178, and the guide member 179 are locked to each other, The movement of the third movable member 177 is restricted, whereby the third movable member 177 is locked at the current position, i.e., the clamp 170 is in the locked state, at which time the clamp 170 is in the locked state. When the user needs to release the workpiece 29 to be cut, the user makes a rotation in a direction away from the fixed part 173 until the third movable member 177, the clamping member 178, and the guide member 179 are detached from each other, and then the user rotates the clamping member 178 upward, so that the user can directly move the movable part 174 in a direction away from the fixed part 173, which can in turn release the workpiece 29 to be cut, and at this time, the clamping device 170 is in the movable state.Moreover, the latch assembly 144, the second display assembly 180, and the clamp 170 are all provided on one side of the cutting plane P, wherein in normal operation the user generally stands on one side of the work table, and by providing the above-mentioned structure on one side of the cutting plane P, the user is facilitated to operate in the course of use, and at the same time, the user is facilitated to observe the cutting zone 26 and the entire supporting work table during operation.Referring to FIGS. 10 and 13, the assist mechanism 10 further includes a first adjustment assembly 160 that is engageable with the clamp 170 and serves to limit the length of the cut workpiece after the workpiece 29 to be cut is cut. This can be understood to be used for cutting out some cut workpieces having equal lengths. The first adjustment assembly 160 includes a first latch member, a stopper block 162, a second latch member, and a movable rod 161. The stopper block 162 is slid on the movable rod 161 and can perform a stable reciprocating motion on the movable rod 161, wherein the first latching member is configured to latch the stopper block 162 on the movable rod 161. The movable rod 161 is configured to be able to reciprocate relative to the fixing member 172, and when the stopper block 162 is fixed to the movable rod 161 by the first lock member, the movable rod 161 is able to reciprocate the stopper block 162 relative to the fixing member 172, i.e., the user is able to adjust the position of the movable rod 161 or the stopper block 162 to adjust the distance between the stopper block 162 and the cutting plane P, the stopper block 162 being configured to cooperate with the workpiece 29 to be cut, i.e., an end thereof is able to abut on the workpiece 29 to be cut. The second latch member is used to fix the stopper block 162 to the movable rod 161 and mount the movable rod 161 to the fixing member 172. After the second lock member locks the movable rod 161, with the stopper block 162 maintained in position, the distance between the stopper block 162 and the cutting plane P becomes a fixed value, so that the work pieces cut by the user are all the same after the work piece 29 to be cut is cut. In this way, the user can adjust the distance between the stopper block 162 and the cutting plane P according to the actual situation, and thus adjust the size of the cut workpieces in the longitudinal direction. That is, with the above structure, the user has a plurality of ways to adjust the distance between the stopper block 162 and the cutting plane P, one way being to adjust the position between the stopper block 162 and the cutting plane P by adjusting the position of the stopper block 162 relative to the movable rod 161, and another way being to adjust the position between the stopper block 162 and the cutting plane P by adjusting the position of the movable rod 161 with respect to the fixing member 172, or to adjust the movable rod 161 and the stopper block 162 together to determine the position between the stopper block 162 and the cutting plane P. The provision of the above structure increases the setting range of the user and facilitates the setting for the user.In another embodiment, the movable rod 161 is detachably connected to both sides of the fixing member 172, or the stopper block 162 may be provided on both sides of the cutting plane P. Along the front-rear direction, the fixing member 172 has a coupling hole 112 passing from front to rear, and the movable rod 161 can be inserted into the coupling hole 112 and reciprocate within the coupling hole 112, and the user can set the movable rod 161 to an appropriate position as needed, and then fix the movable rod 161 to the fixing member 172 through the second locking member, and in actual use by the user, different working conditions, different operating environments, and different operating habits of the user can occur, so that the user can select the position of the stopper block 162 as needed upon cutting by setting the movable rod 161 so that the distance between the stopper block 162 and the cutting plane P on both sides of the cutting plane P can be set by the user, This facilitates the operation of the user.Further, the first fixing member and the second fixing member are bolts, and a through hole through which the movable rod 161 can pass is formed on the stopper block 162, that is, the stopper block 162 reciprocates on the movable rod 161 through the through hole, and another through hole into which the first fixing member can be inserted is formed in the direction perpendicular to the extending direction of the through hole, the bolt being inserted into the through hole and abutting on the movable rod 161 to limit the movement of the stopper block 162. The movable rod 161 and the fixing member 172 also have the above-described structure and will not be repeated here.As shown in FIGS. 1 to 13, the auxiliary mechanism 10 further comprises a first display assembly 190 for displaying an exact cutting position 192 of the saw blade 25, The first display assembly 190 is mounted on the fastening element 172, that is to say the first display assembly 190 is provided at least partially in the movement path of the band saw 20 rotating about the first axis 104. In particular, the first display assembly 190 includes a display plate 191 that is fixedly connected to the fastener 172. When the band saw 20 rotates downward, the saw blade 25 comes into contact with the display plate 191, and either cuts a cut notch in the display plate 191 or cuts away a part of the display plate 191. In this way, in the next use of the band saw 20, the exact position of the actual cutting of the saw blade 25 is known. When the user needs to cut a certain length of the workpiece 29 to be cut using the first adjustment assembly 160, the user can directly adjust the distance between the stopper block 162 and the cut notch on the display plate 191 and calculate the desired size, which is convenient for the user to cut the desired size. In particular, in order to facilitate the observation of the cutting position 192 and the measurement of the distance to the user, the display plate 191 is provided at the rear side of the slide surface 175 and adjacent to the slide surface 175, wherein the upper plane 193 of the display plate 191 is substantially flush with the slide surface 175 or the upper plane 193 of the display plate 191 is slightly lower than the slide surface 175.The structures in the assist mechanism 10 in the present application are all relatively simple to reduce the weight of the assist mechanism 10. In the present application, the weight of the assist mechanism 10 is greater than 0 kg and less than or equal to 12.5 kg, and for cutting a large number of pieces 29 to be cut, the user often mounts and then cuts the band saw 20 on the assist mechanism 10, but the pieces 29 to be cut are often not only located at a location, so that the user needs to change the work location to continue cutting, the user often directly wearing the entire set of cutting system 100, so that the cutting system 100 is the lighter due to the above situation, the more convenient the user is to wear, because the selection of the type of the band saw 20 is often influenced by the workpiece 29 to be cut, in the cutting system 100, a light weight of the assist mechanism 10 can facilitate the user wearing or transportation, However, too light an auxiliary mechanism 10 will also result in the band saw 20 being tilted aside when used by the user. Therefore, setting the weight of the assist mechanism 10 in the above range can both reduce the weight of the cutting system 100, facilitate wearing by the user, and ensure stability of cutting of the band saw 20 mounted on the assist mechanism 10.In the working conditions of actual use after the band saw 20 is mounted on the base 110 for the first time, it is checked whether the indicator 181 is at the position of 0 degrees, and then the band saw 20 is rotated downward to cut until the indicator plate 191 is partially cut off, and at this time, the edge of the remaining part thereof is the cutting position 192 indicating that the cutting edge of the band saw 20 is at an angle of 0 degrees, that is, the next time the user uses the assist mechanism 10 to cut with the band saw 20, the user can directly recognize the cutting position 192 of the band saw 20 by observing the remaining indicator plate 191. In any complete cutting operation of the band saw 20, the saw blade 25 of the cutting zone 26 is at least partially in contact with the display plate 191, and according to the foregoing, the adjustment block 141 will drive the band saw 20 to rotate, and in the process of rotating the band saw 20, the cutting direction 108 of the saw blade 25 of the cutting zone 26 may also change accordingly, but the band saw 20 is always partially in contact with the display plate 191. The assist mechanism 10 also includes a work table adjustment assembly 111 capable of mounting the assist mechanism 10 on a floor, work table, or floor stand 113. In the most specific embodiment, the assist mechanism 10 may be mounted on the floor stand 113 for mounting the table saw or the miter saw, so that the user can mount various tools for cutting according to the actual use at the location where the cutting is required, which is convenient in use for the user.Specifically, the work table adjustment assembly 111 includes a plurality of mounting pillars formed on the base 110, and screws may be passed through the mounting pillars to securely mount the base 110 to the floor stand 113. Of course, the user may also remove the assist mechanism 10 from the floor stand 113 and mount the table saw on the floor stand 113 for use.In the specific use of the assist mechanism 10 with the band saw 20, and in a state of the band saw 20 shown in FIG. 1, the band saw 20 may perform a composite motion of an upward rotation and / or a forward and backward rotation with respect to the base 110, i.e., the band saw 20 may be rotated upward with respect to the base 110, and it is also possible that the band saw 20 is moved forward with respect to the base 110 by the adjusting block 141, and of course, the above two motions may be composited, i.e., the band saw 20 may be rotated forward by a certain angle and then rotated upward or downward to cut the workpiece 29 to be cut.The change in the operation of the band saw 20 will be described herein when the band saw 20 is not mounted on the support arm 121, the second positioning part on the first movable member 127 is in contact with the first connecting pin 125 and the fourth positioning part on the second movable member 128 is in contact with the second connecting pin 126, i.e., at this time, the support arm 121 can be rotated upward or downward about the first axis 104, and at the same time, because the energy storage member 122 is not in contact with the second movable member 128, i.e., the energy storage member 122 does not apply force to the support arm 121, the support arm 121 has only its own gravity and the force applied by the user, and when the user rotates the support arm 121 downward about the first axis 104 because there is no reaction force, At this time, when the state of the assist mechanism 10 is applied from the energy storage member 122 to the support arm 121, that is, the support arm 121 can come into contact with the base 110, the state of the assist mechanism 10 can be referred to as the original state, and the user can store the assist mechanism 10 at the storage location in the current state.In this embodiment, the band saw 20 is mounted on a bracket via the connecting assembly 150, and the operation method specifically operates as follows: the user loosely rotates the operation handle 151, removes the operation handle 151 from the support arm 121, and then inserts the connecting part 28 on the band saw 20 into the accommodation space 1211 on the second connecting arm 1214 to achieve provisional matching, and after provisional alignment of the third through hole and the engaging part is achieved, the operation handle 151 is partially inserted into the engaging part through the third through hole, and then the operation handle 151 is screwed, thereby completing the mounting of the band saw 20 on the assist mechanism 10, And similarly, in order to remove the band saw 20 from the support arm 121, the user only needs to hold the operation handle 151 with one hand and the grip part 24 of the band saw 20 with the other hand, and the hand holding the operation handle 151 loosely rotates the operation handle 151 so that there is no force interaction between the band saw 20 and the support arm 121, and once there is no force interaction, the user can remove the band saw 20 from the support arm 121 by holding the grip part 24.When the band saw 20 is mounted on the support arm 121, the second positioning part on the first movable member 127 is in contact with the first connecting pin 125 and the fourth positioning part on the second movable member 128 is in contact with the second connecting pin 126, i.e., at this time, the support arm 121 can be driven to rotate up or down about the first axis 104 together with the band saw 20, and at the same time, because the energy storage member 122 is not in contact with the second movable member 128, i.e., the energy storage member 122 does not apply force to the support arm 121, the gravity of the support arm 121 itself, the force applied by the user, and the gravity of the band saw 20 itself are present on the support arm 121, wherein the weight of the band saw 20 itself is very heavy and the user holds the grip part 24 of the band saw 20, so that the band saw 20 can easily cause the band saw 20 to strike the base 110 with the freely rotating end during rotation due to the excessive potential gravitational energy of the band saw 20, and in order to avoid this situation, it is necessary to always exert a force on the band saw 20 during the user's rotation of the band saw 20, so that a situation of the band saw 20 is ensured in which the band saw 20 can cut normally as well as not strike the base 110, but the user must always exert a force on the band saw 20 throughout the cutting process, resulting in, the user is stressful in the entire cutting process.The second positioning part of the first movable element 127, when mounted on the support arm 121, is in contact with the first connecting pin 125 and the third positioning part of the second movable element 128 is in contact with the second connecting pin 126, wherein the support arm 121 can be driven to freely rotate with the band saw 20 up or down about the first axis 104, and the second movable element 128 additionally adjoins the energy storage element 122, which can generate a force interaction with the support arm 121 during the rotation of the band saw 20. When the band saw 20 rotates downward, the energy storage member 122 may apply an upward reaction force to the band saw 20 so that the downward rotation of the band saw 20 is decelerated, and as the angle by which the band saw 20 rotates downward increases, the elastic force generated by the deformation of the energy storage member 122 becomes stronger, so that when the band saw 20 rotates downward, the user does not need to apply much force to control the rotation of the band saw 20, it is also possible that after an initial force for the band saw 20 rotates downward by the user, the band saw 20 may rotate downward due to its own weight when no further force is applied, but in the process of rotating, the elastic force generated by the deformation of the energy storage member 122 becomes stronger and stronger, too, until the forces of the two are canceled out, the band saw 20 may float at a certain position near the cut line, and said floating position may not be fixed. In this way, when the user is cutting with the band saw 20, there will be no situation where the user cannot easily operate due to the larger potential gravitational energy of the band saw 20, and because the elastic force of the energy storage element 122 can substantially cancel the potential gravitational energy of the band saw 20, the user only needs to apply a smaller force to the band saw 20 when cutting with the band saw 20 to achieve the cutting. Moreover, when the user rotates the band saw 20 upward, the user does not need to apply much force to raise the band saw 20.When the band saw 20 is mounted on the support arm 121 and the band saw 20 rotates up and down about the first axis 104, there are at least two durable states, i.e., a first state and a second state, and when the band saw 20 is in the second state, the cutting direction 108 of the saw blade 25 of the band saw 20 is perpendicular or substantially perpendicular to the base 110. When the band saw 20 is in the first state, the cutting direction 108 of the saw blade 25 of the band saw 20 is parallel or substantially parallel to the base 110. When the band saw 20 is in the second state, the first movable member 127 cooperates with the second stopper part 1412 on the first mounting part 142. When the band saw 20 is in the first state, the first movable member 127 cooperates with the first stopper part 1411 on the first mounting part 142. Under certain operating conditions, when a user needs to transport or wear the cutting system 100, the user may rotate the band saw 20 to the first state and then hold the handle portion 24 of the band saw 20 or the base 110 to wear the cutting system 100. Assuming that the initial state of the cutting system 100 is the second state, the first movable member 127 cooperates with the second stopper part 1412. When the user wants to change the band saw 20 from the second state to the first state, the user holds the first grip part and pulls out the first movable member 127 forward, and the first positioning part on the first movable member 127 originally in contact with the first connecting pin 125 is separated and moves forward further until the second positioning part on the first movable member 127 comes into contact with the first connecting pin 125, and at this time, the first adjustment part is separated from the second stopper part 1412, at which time the user can drive the band saw 20 to rotate downward to the first state, the support arm 121 rotates downward until the first through hole 1212 is substantially flush with the first stopper part 1411, and then the user drives the first grip part, In order to press rearward, the second positioning part on the first movable member 127 is separated from the first connecting pin 125 and moves rearward further until the first positioning part on the first movable member 127 comes into contact with the first movable pin and the first adjusting part cooperates with the first stopper part 1411. At this time, the band saw 20 is in the first state. That is, the band saw 20 has performed the switching from the second state to the first state. Likewise, when the user wants to change the band saw 20 from the first state to the second state, the above operation can be easily repeated. During the switching of the band saw 20 from the first state to the second state or from the second state to the first state, the energy storage element 122 may or may not abut on the second movable element 128. In addition, the adjustment block 141 may be rotated to an arbitrary position between a home position and a maximum rotational position.According to the above, the adjusting block 141 may be driven to be adjusted between the initial position and the maximum adjusting position. A specific adjusting method is as follows: assuming that the current position of the adjusting block 141 is the initial position and at this time, an end of the adjusting block 141 abuts against the first angle stopper block 131, when the user wants to rotate the band saw 20 from the initial position to the maximum adjusting position, the user must first rotate the handle, release the intermediate member and the abutting member so that the adjusting block 141 and the base 110 can be rotated relative to each other, and then still use the hand holding the handle to rotate to the desired angle and stop when it reaches the maximum adjusting position, wherein when the maximum adjusting position is reached, the user can tighten the intermediate member and the abutting member, wherein, in the tightened intermediate member and abutting member, the adjusting block 141 and the base 110 are held fixed relative to each other.If the user wishes to perform fixed length and fixed angle cutting, he must first rotate the adjustment block 141 to the desired angle. Here, for convenience, the cutting angle of the band saw 20 is defined as 0 degree, i.e., when the adjustment block 141 is at the initial position, the band saw 20 cuts horizontally at this time. The fixed angle adjustment process has been described above and will not be repeated here. The fixed length adjustment method is as follows: First, the position of the cut line on the display plate 191 fixed to the base 110 is determined and used as a starting point for estimating the position where the stopper block 162 is located. In addition, the stopper block 162 may be mounted on each side of the cutting plane P, and as a mounting manner, the stopper block 162 may be slid on at each end of both ends of the movable rod 161. Assuming that the stopper block 162 is mounted behind the cutting plane P, the user first inserts the movable rod 161 into the connecting hole 112 formed in the fixing member 172, the user generally operates so that the part of the movable rod 161 protruding from the connecting hole 112 is larger than the user's desired length, and then the second locking member is used to firmly connect the movable rod 161 to the fixing member 172, and then the desired length is measured with the distance between the stopper surface of the stopper block 162 and the cutting line set to the desired position, and then the position of the stopper block 162 is fixed, thereby completing the setting of the fixed length. The user can cut at this time under the conditions of a fixed angle and a fixed length, so that cutting into the desired cut parts can be enabled.The cutting system 100 has at least a first use state and a second use state, wherein the band saw 20 is mounted on the assist mechanism 10 in the first use state of the cutting system 100, i.e., the band saw 20 can be driven to rotate by the user so that the saw blade 25 approaches the band saw 20 to the workpiece 29 to be cut which is fixed by the clamp 170, and the cutting is performed. In the second use state of the cutting system 100, the band saw 20 is configured to be detached from the assist mechanism 10 and directly used for cutting.That is, by providing the assisted cutting system 100, the user's experience can be significantly improved, and for large quantities, large sizes of workpieces 29 to be cut, or some workpieces 29 to be cut that have angular or dimensional requirements for the cut workpieces, the user can attach the workpieces 29 to be cut to the assist mechanism 10, such that the functions can be utilized by the assist mechanism 10 to facilitate rapid adjustment to the required size or angle for the user and thus rapidly perform the cutting. In some temporary cutting, or when the work station for cutting needs to be frequently changed, the band saw 20 may be directly used for cutting.When the user cuts the workpiece 29 to be cut using the assist mechanism 10, i.e., when the user uses the first use state of the cutting system 100, the user fixes the workpiece 29 to be cut to the clamp 170. The state in which the fixed part 173 is in contact with the movable part 174 of the clamping assembly 171 and the clamping member 178 and the guide member 179 clamp and enclose the third movable member 177 is defined as the provisional state, and when the user wants to fix the workpiece 29 to be cut to the clamping device 170, first, he drives the clamping member 178 to rotate it upward with respect to the guide member 179, which is generally referred to as raising the clamping member 178 upward. At this time, the third movable member 177 may be pulled directly by the user to move, and the user holds the third movable member 177 and then moves the movable member in a direction away from the fixed part 173 until the distance between the movable part 174 connected to the third movable member 177 and the fixed part 173 is able to place the workpiece 29 to be cut, and the user places the workpiece 29 to be cut in the space between the movable part 174 and the fixed part 173, and then rotates the clamping member 178 so that the clamping member 178 and the guide member 179 half-enclose the third movable member 177, and then the user drives the third movable member 177 so that the third movable member 177 is driven toward the fixed part 172 until the fixed part 173, When the workpiece 29 to be cut and the movable part 174 abut each other, the user rotates the third movable member 177 and pulls the third movable member 177 with the clamping member 178, thereby fixing the workpiece 29 to be cut to the clamping device 170, and then the user can perform the cutting. After completion of the cutting, the user releases the third movable member 177 and the clamping member 178 and rotates the clamping member 178 upward with respect to the guide member 179, and then the user can hold the third movable member 177 to move it in a direction away from the fixed part 173 until the distance between the fixed part 173 and the movable part 174 is so large that the user can freely move the workpiece 29 to be cut. If the user wants to continue cutting, he may repeat the above operation. In some environments where there is no possibility of placing the assist mechanism 10, the user may use a work table adjustment assembly 111 to mount the assist mechanism 10 to the floor stand 113, so that the user may also be facilitated to cut, and also due to the assist mechanism 10 raising the operation surface, the user may stand near the floor stand 113 and thus perform the cutting with the band saw 20, improving the user's experience.FIGS. 15 to 28 show a second possible embodiment of the support arm assembly, wherein the other parts of the auxiliary mechanism substantially correspond with respect to the structure and the functional principle to the first embodiment, wherein the difference lies in the structure of the support arm assembly, the functional principle and the structure of the parts connected to the support arm assembly, which is described in detail as follows.As shown in FIGS. 15 to 23, the support arm assembly 321 further includes a first movable member 321 and a second movable member 322. The adjusting block 334 has a first mounting part 323 and a second mounting part 324 spaced apart from each other and having corresponding mounting holes, i.e., a first mounting hole and a second mounting hole. The first movable member 321 is capable of interacting with the first mounting part 323, thereby preventing the support arm 320 from coming off the current position. Specifically, the first mounting part 323 has a first stopper part 325, and the first movable member 321 passes through the first mounting hole to cooperate with the first stopper part 325. Generally, when the user wants to transport the cutting system 300 to facilitate the transport of the user and ensure stability during transport, the user drives the band saw 301 to rotate and adjusts the band saw 301 such that the extending direction of the saw blade 304 of the cutting zone 303 of the band saw 301 is substantially parallel to the base 349, and then holds it at the current position such that the cutting system 300 is transported. In a concrete embodiment, it is only necessary to move the first movable member 321 inward so that the first movable member 321 cooperates with the first stopper part 325, and the first stopper part 325 restricts the movement of the support arm 320 so that the support arm 320 is held at the current position to prevent the band saw 301 from rotating under a force when the cutting system 300 is transported by the user, which may lead to user injuries. When the user wants to continue cutting with the cutting tool 31, the user simply moves the first movable member 321 outward to separate the first movable member 321 from the first stopper part 325, whereupon the user can drive the band saw 301 to rotate about the first axis 401.The second movable member 322 cooperates with the second mounting part 324 having at least a second stopper part 326 and a third stopper part 327 in the rotational direction of the support arm 320, and the second movable member 322 can cooperate with either the second stopper part 326 or the third stopper part 327. When the second movable member 322 cooperates with the second stopper part 326, it is used to limit the range of rotation of the support arm 320, and when the second movable member 322 cooperates with the third stopper part 327, it is used to keep the support arm 320 at a current position. When the cutting tool 31 is used for cutting, the user operates the band saw 301 to rotate it relative to the base 349 by holding the band saw 301, and in the process of rotation, it is inevitable that the user has a situation in which the angle between the cutting direction of the saw blade 304 and the base 349 is too large or too small, i.e., the angle between the band saw 301 and the base 349 is too large, which tends to unfold the band saw 301, which is not convenient for the user, or the angle between the band saw 301 and the base 349 is too small, which tends to affect the switching or moving of the workpiece to be cut by the user, which is not convenient for the operation by the user. By the cooperation of the second movable member 322 with the second stopper part 326, the range of rotation of the support arm 320 is limited to a certain range to avoid a situation where the angle between the cutting direction of the saw blade 304 and the base 349 is too large or too small, so that the operation by the user is facilitated and the normal cutting with the machine is ensured. When the second movable member 322 cooperates with the third stopper part 327, the second movable member 322 is used to hold the support arm 320 at the current position, and the support arm 320 is rotated downward to the lowest point. When the user uses the cutting system 300, a situation is inevitable in which the cutting system 300 is transported to a remote location, and in such a situation, the user can detach the band saw 301 from the support arm 320 and then transport the assist mechanism 32, and when the support arm 320 is placed in a normal position, the assist mechanism 32 will take up a lot of space due to the height, so that the user, when transporting, needs to provide more space for the assist mechanism 32 to place more assist mechanism 32, and by rotating the support arm 320 downward to the lowest point and then moving the second movable member 322 inward, the second movable member 322 comes into contact with the third stopper part 327 so that the support arm 320 is held at the current position, and at this time, due to the downward rotation of the support arm 320 to the lowest point, the height of the assist mechanism 32 is lowered to the lowest point in the upward and downward direction, so that when the user transports, the space provided for the assist mechanism 32 can be greatly reduced and more tools can be put in the transport tool.Referring to Figures 9-14, assist mechanism 32 is shown further to include a clutch assembly 33 that cooperates with support arm 320 to provide support force to support arm 320. In the case of retracting the external force applied to the band saw 301, the band saw 301 remains stationary relative to the base 349 at at least one position within a range of an angle between the extending direction and the base 349 of greater than or equal to 0 degrees and less than or equal to 60 degrees by the cooperation of the support arm assembly 321 and the clutch assembly 33. The band saw 301 mounted on the assist mechanism 32 constitutes a table tool, and when the band saw 301 performs cutting work, the user needs to mount the workpiece to be cut on the clamper 346, and then the user drives the band saw 301 so that the saw blade 304 of the band saw 301 approaches the workpiece to be cut, and after completion of the cutting, the band saw 301 is then raised upward. In this case, after cutting with the band saw 301 is completed, the user needs to adjust the position of the workpiece to be cut or replace it with a new workpiece to be cut, i.e., the user does not always apply an external force to the band saw 301, and when the user retracts the external force applied to the band saw 301, the band saw 301 rotates downward under the influence of its own gravity G, whereby by providing the coupling assembly 33, a support force is provided to the support arm 320 that allows the band saw 301 to remain stationary relative to the base 349 at any position in the movement path of the band saw 301. In this way, after cutting by the user is completed, the band saw 301 can be arbitrarily lifted to any position as long as the band saw 301 does not interfere with the user in changing or adjusting the position to be cut. In summary, the clutch assembly 33 is provided for the convenience of the user.The external force applied to the band saw 301 continues to be retracted, and the cooperation of the support arm assembly 321 and the clutch assembly 33 allows the band saw 301 to remain stationary relative to the base 349 at any position in the rotational path of the band saw 301. This also allows the user to retract the external force applied to the band saw 301 upon completion of the cutting, upon the operation, and the band saw 301 is held at the position where the user retracts the external force, under the cooperation of the support arm assembly 321 and the clutch assembly 33, without the band saw 301 having to be rotated to the corresponding position, thereby avoiding the situation where the band saw 301 falls by itself due to the gravity G and causes injuries to the machine or the user. The safety of the user is secured, and the life of the cutting system 300 is extended. The band saw 301 has a first weight and a second weight, and in the absence of an external force at an angle α of more than or equal to 10 degrees and less than or equal to 60 degrees between the extending direction and the base 349, the band saw 301 can remain stationary relative to the base 349 at any position within the angular range when the band saw 301 having the first weight or the second weight is mounted on the support arm 320. The band saw 301 is connected to the support arm 320 through the connection assembly 34 and can be adapted to battery packs 105 having different capacities on the market, i.e., the band saw 301 will have different weights after assembling battery packs 105 having different capacities, i.e., the band saw 301 has at least a first weight and a second weight, and when battery packs 105 having different weights are assembled on the band saw 301, the band saw 301 may still remain stationary relative to the base 349. Moreover, the band saw 301 equipped with various battery packs 105 may remain stationary at any position in the rotational path of the band saw 301 with respect to the base 349.The support arm 320 may serve to mount various types of cutting tools 31, i.e., the cutting tools 31 have at least a first type cutting tool 31 and a second type cutting tool 31, wherein in the absence of an external force at an angle α of more than or equal to 10 degrees and less than or equal to 60 degrees between the extending direction and the base 349, the cutting tool 31 may remain stationary relative to the base 349 at any position within the angular range when the first type cutting tool 31 or the second type cutting tool 31 is mounted on the support arm 320. In particular, the support arm 320 may serve to mount various types and sizes of band saws 301, and the cutting tools 31 of various types and sizes have different weights, so that in the absence of an external force, the cutting tools 31 may still remain stationary relative to the base 349 when the cutting tools 31 of various types and sizes are mounted on the support arm 320. Moreover, the cutting tools 31 of different types are adapted to remain stationary at any position in the rotational path of the cutting tools 31 relative to the base 349.Further, the clutch assembly 33 is adjusted such that the band saw 301 assumes at least a first state, a second state, and a third state with respect to the base 349, wherein the band saw 301 can remain stationary relative to the base 349 at any position in the path of travel in its first state in the absence of an external force. The band saw 301 is moved upward in its second state in the absence of an external force by a force of the support arm 320 to a position in which the band saw 301 can rotate upward by the maximum angle. The band saw 301 rotates downward in its third state in the absence of an external force under the influence of the own gravity G of the band saw 301 until it moves to a position where the band saw 301 can rotate downward by the maximum angle.When the cutting tool 31 is mounted on the support arm 320, switching between the first state, the second state, and the third state can be achieved by adjusting the clutch assembly 33.The clutch assembly 33 includes an elastic member 331, an intermediate member 332, an adjustment assembly 333, and a positioning member 334. The positioning member 334 is provided inside the first link arm, and the positioning member 334 is fixedly connected to the first link arm. The elastic member 331 is at least partially disposed inside the first link arm, wherein one end of the elastic member 331 is connected to the positioning member 334 and the other end of the elastic member 331 is connected to the intermediate member 332, and wherein the elastic member 331 is configured to provide a support force to the band saw 301. The adjustment assembly 333 may be driven to move the intermediate member 332, and upon movement of the intermediate member 332, the elastic member 331 is driven to move together such that the potential energy within the elastic member 331, which may be referred to as F 1, is changed, i.e., the F 1 is changed according to the position to which the intermediate member 332 is moved. The adjustment assembly 333 comprises an operating element 335 operated by the user, an adjustment element 236, and a limiting element 337 firmly connected to the adjustment block 334, wherein the limiting element 337 is provided with two corresponding through holes, i.e. a first through hole and a second through hole, and the intermediate element 332 is provided with a through hole, wherein the operating element 335 passes through the first through hole of the limiting element 337, then through the through hole of the intermediate element 332 and finally through the second through hole of the limiting element 337 and is then connected to the adjustment element 236. The restricting member 337 is formed with a housing space in which the intermediate member 332 is at least partially disposed, the restricting member 337 is formed with four walls forming the above-described housing space, and the above-described through holes are disposed on two walls disposed opposite to each other. Since the intermediate member 332, the operating member 335, and the adjusting member 236 are connected to each other, the user can change the distance L 1 between the intermediate member 332 and the first axis 401 by operating the operating member 335, thereby adjusting the size of F 1. The adjustment element 236 may be a nut cooperating with the operating element 335 or may be integrally formed with the limiting element 337, i.e. the limiting element 337 is provided with a thread that may cooperate with the operating element 335.In the first state of the cutting tool 31, the product of the gravity G of the cutting tool 31 and the vertical distance L 2 from the first axis 401 to the center of gravity of the cutting tool 31 and the product of the potential energy F 1 of the elastic member 331 and the vertical distance L 1 from the positioning member 334 to the first axis 401 during the rotation of the cutting tool 31 are substantially the same. This adjustment allows the cutting tool 31 to remain at the current position at any position during the rotation upon retraction of the external force applied to the cutting tool 31.In the second state of the cutting tool 31, the product of the gravity G of the cutting tool 31 and the vertical distance L 2 from the first axis 401 to the center of gravity of the cutting tool 31 is larger than the product of the potential energy F 1 of the elastic member 331 and the vertical distance L 1 from the positioning member 334 to the first axis 401 during the rotation of the cutting tool 31. When the cutting tool 31 is driven by the user and thus rotated to an arbitrary position and the user retracts the force applied to the cutting tool 31, the cutting tool 31 is driven by this adjustment by a spring to rotate upward until moving to a maximum position in which the support arm 320 can rotate.In the third state of the cutting tool 31, the product of the gravity G of the cutting tool 31 and the vertical distance L 2 from the first axis 401 to the center of gravity of the cutting tool 31 is less than the product of the potential energy F 1 of the elastic member 331 and the vertical distance L 1 from the positioning member 334 to the first axis 401 during the rotation of the cutting tool 31. When the cutting tool 31 is driven by the user and thus rotated to an arbitrary position and the user retracts the force applied to the cutting tool 31, the weight of the cutting tool 31 drives the support arm 320 to rotate downward even through this adjustment until moving to a maximum position in which the support arm 320 can rotate.In the first state of the cutting tool 31, the adjustment assembly 333 adjusts the intermediate member 332 to move toward the first axis 401 until the cutting tool 31 changes from the first state to the second state. In the first state of the cutting tool 31, the adjustment assembly 333 adjusts the intermediate member 332 to move in a direction away from the first axis 401 until the cutting tool 31 changes from the first state to the third state. That is, the user only needs to adjust the intermediate member 332 by operating the adjustment assembly 333 to achieve the change in the state of the cutting tool 31 mounted on the support arm 320, which is convenient for the user to operate.In this embodiment, the number of the elastic members 331 is two, the positioning member 334 has two ends, and the intermediate member also has two ends, one end of the two elastic members 331 is fixedly connected to the two ends of the positioning member 334, respectively, and the other end of the two elastic members 331 is connected to the two ends of the intermediate member.The operating member 335 may be a bolt. Specifically, the elastic member 331 is a spring, the larger F 1, the larger the deformation of the spring, and the smaller F 1, the smaller the deformation of the spring. The clutch assembly 33 described above is structurally stable, structurally simple, and easy to implement.As a specific operation method for the normal operation, transport, or carrying of the cutting system 300, the user will divide the cutting tool 31 and the assist mechanism 32 in the cutting system 300 into two structures for transport when he wants to transport the cutting system 300 for a longer period of time, the assist mechanism 32 occupying a larger transport space in transport because the support arm 320 of the assist mechanism 32 has a certain height in the up-and-down direction, so that the user sets the position of the support arm 320 in transporting the assist mechanism 32, first by driving the operation member 335 and then by moving the intermediate member 332 in a direction away from the first axis 401 to the limit position, wherein the spring is subjected to a relatively low force and the torque generated by the spring side is also in the minimum state and the spring generates a plastic deformation. Then, the second movable member 322 is moved outward and the first movable member 321 is also moved outward and the support arm 320 is rotated downward to the lowest point, and then the second movable member 322 is moved toward the inside of the support arm 320, the first movable member 321 does not move until the second movable member 322 cooperates with the third stopper part 327 on the support arm 320, and at this time, the size of this auxiliary mechanism 32 in the height direction is smaller, and this position is convenient for the user to transport for a long period of time.At this time, when the user wants to wear the cutting system 300 for a short distance, the user moves the assist mechanism 32 to directly fix the support arm 320 in a position and then wear it, so that a situation in which the support arm 320 shakes while wearing is avoided. Specifically, the user now pulls the first movable member 321 outward, then rotates the support arm 320 to rotate the support arm 320 to a position where the extending direction of the saw blade 304 of the cutting zone 303 is substantially parallel to the base 349, and then moves the first movable member 321 toward the inside of the support arm 320 until the first movable member 321 cooperates with the first stopper part 325. At this time, the rotation of the support arm 320 may be limited to facilitate short distance support. The band saw 301 may be mounted on the support arm 320 during the supporting or may not be mounted on the support arm 320.When the user wishes to change the cutting system 300 to normal operation, the user will forcibly mount the band saw 301 to the support arm 320 and then rotate the support arm 320 to drive the band saw 301 to cut. Specifically, the user moves the first movable member 321 in a direction away from the inside of the support arm 320 and then moves the second movable member 322 toward the inside of the support arm 320 so that the second movable member 322 comes into contact with the second stopper part 326 to restrict the rotation direction of the support arm 320, thereby avoiding the situation where the band saw 301 tilts outward or abuts on the base 349.The user holds on the main handle of the band saw 301, and then applies downward pressure, then brings the saw blade 304 of the cutting zone 303 close to the workpiece to be cut, further presses on the main handle, and performs the cutting. In the case of normal use of the cutting system 300, if the user wants to use the first state of the cutting tool 31 because a spring is provided in the support arm 320, the spring will deform during rotation of the cutting tool 31 and generate potential energy to cancel the gravity G of the cutting tool 31 during rotation of the band saw 301, wherein the user adjusts the actuator 335 and thus the movement of the positioning member 334, i.e. the distance L 2 between the positioning member 334 and the first axis 401, the spring being connected to the positioning member 334, such that the movement of the positioning member 334 adjusts the potential energy of the spring. When the cutting tool 31 is mounted on the support arm 320, the operating member 335 is adjusted such that, in the first state of the cutting tool 31, the product of the gravity G of the cutting tool 31 and the vertical distance L 2 from the first axis 401 to the center of gravity of the cutting tool 31 and the product of the potential energy F 1 of the elastic member 331 and the vertical distance L 1 from the positioning member 334 to the first axis 401 are substantially equal during the rotation of the cutting tool 31. Once the adjustment is completed, the cutting tool 31 can be used for cutting.In the case of the normal use of the cutting system 300, the user wants to change the cutting tool 31 from the first state to the second state. The user drives the actuator 335 to then move the actuator 335 in a direction away from the first axis 401 until the support arm 320 at any position can allow the cutting tool 31 to rotate upwards. That is, the adjustment is completed, and then the cutting tool 31 can also be used for cutting.In the case of the normal use of the cutting system 300, the user wants to change the cutting tool 31 from the first state to the third state. The user drives the actuator 335 to then move the actuator 335 towards the first axis 401 until the support arm 320 at any position can allow the cutting tool 31 to rotate downwardly. That is, the adjustment is completed, and then the cutting tool 31 can also be used for cutting.The above embodiments illustrate and describe the basic principle, the main features and the advantages of the present application. It should be understood by those skilled in the art that the above embodiments do not limit the present application in any way, and that all technical solutions achieved by equivalent replacement or equivalent variation fall within the scope of the present application.

Claims

A cutting system comprising: a cutting tool having an output member for cutting a workpiece to be cut; an assist mechanism configured to cooperate with the cutting tool; characterized in that the cutting system further comprises: a power supply mechanism configured to supply power to the cutting tool; wherein the assist mechanism comprises: a base; a support arm assembly configured to be connected at one end to the cutting tool and at the other end to the base, the support arm assembly capable of moving the cutting tool relative to the base; a first indicator assembly mounted on the base, the first indicator assembly comprising an indicator plate provided in a path of movement of the output member.The cutting system of claim 1, characterized in that the cutting tool is configured to be rotatable back and forth about a first axis with respect to the base, wherein during a first activation of the cutting tool, the output member cuts out a portion of the indicator plate such that the remaining indicator plate has a new edge representing a cutting position of the cutting tool.The cutting system according to claim 2, characterized in that the assist mechanism further comprises a first adjustment assembly for adjusting the length of the cut workpiece, the first adjustment assembly comprising a movable rod insertable into the base and a stopper block mounted on the movable rod and movable with respect to the movable rod, the stopper block being configured to abut on the workpiece to be cut, the length of the cut workpiece being adjusted by means of a change in the distance between the stopper block and the cutting position.The cutting system according to claim 3, characterized in that the output element comprises a cutting plane, the stop block being configured to be selectively mounted on each of the two sides of the cutting plane.The cutting system according to claim 4, characterized in that a communication hole for the passage of the movable rod is formed on the base, the movable rod being slidably disposed in the communication hole relative to the base, the stopper block being configured to be selectively mountable to each of both ends of the movable rod.Cutting system according to claim 1, characterised in that the indicator plate is firmly connected to the base by screws.The cutting system according to claim 1, characterized in that the assist mechanism further comprises a clamping device for fastening the workpiece to be cut, the clamping device comprising a clamping assembly and a locking assembly that cooperate with each other, the clamping assembly comprising a fastening element, a fixed part connected to the fastening element, a movable part cooperating with the fixed part, and a sliding surface that guides the movement of the movable part; wherein the locking assembly comprises a movable element connected to the movable part, a clamping element cooperating with the movable element, and a guiding element, the clamping element and the guiding element cooperating to thereby lock or release the movable part.The cutting system according to claim 7, characterized in that the indicator plate is provided at a rear end of the slide surface, and the upper plane of the indicator plate is substantially flush with the slide surface.The cutting system according to claim 7, characterized in that the fastening element is formed integrally with the base.Cutting system according to claim 7, characterised in that both the fixed part and the movable part are provided with a work protection sleeve.The cutting system of claim 1, characterized in that the assist mechanism further comprises a second adjustment assembly for adjusting the cutting angle and a limit assembly that cooperates with the second adjustment assembly; wherein the second adjustment assembly comprises an adjustment block that rotates about a second axis and a latch assembly that cooperates with the adjustment block to release or latch the adjustment block; wherein the limit assembly comprises a first angle stop block and a second angle stop block, wherein the first angle stop block and the second angle stop block are provided in the rotational path of the adjustment block and limit the further rotation of the adjustment block.The cutting system according to claim 11, characterized in that the assist mechanism further comprises a second display assembly that displays an angle, the second display assembly comprising a display element that rotates together with the adjustment block, and an angle scale provided on the base and distributed in the circumferential direction with respect to the second axis, the display element being displayed on the angle scale each time the adjustment block rotates.Cutting system according to claim 11, characterised in that the starting element has a cutting plane, wherein the latching assembly, the display element and the clamping device are provided substantially on the same side of the cutting plane.The cutting system according to claim 1, characterized in that the cutting system has at least a first use state and a second use state, wherein the cutting tool is mounted on the assist mechanism in the first use state of the cutting system, wherein the cutting tool is driven to move relative to the assist mechanism and cut the workpiece to be cut, and wherein the cutting tool is detached from the assist mechanism in the second use state of the cutting system such that the cutting tool directly cuts the workpiece to be cut, wherein the cutting system further comprises a connection assembly for mounting or removing the cutting tool from the assist mechanism.The cutting system according to claim 14, characterized in that the connecting assembly comprises a support arm and an actuating handle which passes through the support arm and is thus connected to the cutting tool.The cutting system according to claim 15, characterized in that a connecting part is formed on the cutting tool and a receiving space into which the connecting part is to be inserted is formed on the support arm, wherein the operation handle is inserted into the receiving space and connected to the connecting part after the connecting part is inserted into the receiving space, thereby firmly holding the cutting tool relative to the support arm.Cutting system according to claim 16, characterised in that the actuating handle and the connecting part are screwed together.The cutting system of claim 14, characterized in that the assist mechanism further comprises an indicator plate; wherein the saw blade of the cutting zone at least partially contacts the indicator plate during cutting by the cutting tool when the cutting system is in the first use state.The cutting system of claim 18, characterized in that the support arm assembly comprises a support arm connected to the base and rotating back and forth about a first axis in a first direction and in a second direction, the support arm having at least a first state and a second state that can be maintained during rotation of the support arm, wherein the cutting direction of the saw blade of the cutting zone is substantially parallel to the base and the saw blade is substantially in contact with the indicator plate when the cutting tool is in the first state, and wherein the cutting direction of the saw blade of the cutting zone is substantially perpendicular to the base when the cutting tool is in the second state.The cutting system according to claim 19, characterized in that the assist mechanism further comprises an adjustment block connecting the support arm assembly to the base, the support arm assembly comprising a first movable member cooperating with the support arm to maintain the support arm in a current state, wherein the adjustment block has formed thereon a first stopper part and a second stopper part arranged circumferentially with respect to the direction of the first axis, wherein the cutting tool remains in the first state when the first movable member is in contact with the first stopper part, and wherein the cutting tool remains in the second state when the first movable member is in contact with the second stopper part.The cutting system according to claim 20, characterized in that a first through hole is formed on the support arm, the first movable member being configured to slide partially in the first through hole and be in contact with the first stopper part or the second stopper part, the support arm assembly further comprising a first connection pin that cooperates with the first movable member and can restrict the movement of the first movable member, wherein a first positioning part and a second positioning part that cooperate with the first connection pin and are spaced apart from each other are formed on the first movable member, wherein the first movable member is configured to be in contact with the first stopper part or the second stopper part when the first positioning part is in contact with the first connection pin, and wherein the first movable member does not contact the first connection pin, when the second positioning part is in contact with the first connecting pin.The cutting system of claim 14, characterized in that the cutting tool further comprises a battery pack releasably mounted to the cutting tool.The cutting system of claim 14, characterized in that the assist mechanism further comprises a work table adjustment assembly comprising a plurality of mounting columns via which the assist mechanism is mounted to a floor stand, the floor stand configured to mount a table saw or a miter saw.The cutting system of claim 1, characterized in that a saw blade located in the cutting zone moves in an extension direction, the assist mechanism further comprising: a clutch assembly cooperating with the support arm, the clutch assembly configured to provide a support force to the support arm; wherein in the absence of an external force on the support arm at an angle greater than or equal to 0 degrees and less than or equal to 60 degrees between the extension direction and the base, the cutting tool may remain stationary relative to the base at at least one position within the angle range.A cutting system according to claim 24, characterized in that in the absence of an external force the cutting tool can remain stationary relative to the base at any position within the angular range.A cutting system according to claim 24, characterised in that in the absence of an external force the cutting tool can remain stationary relative to the base at any position in the rotational path.The cutting system according to claim 24, characterized in that the cutting tool has at least a first weight and a second weight, wherein in the absence of an external force at an angle of more than or equal to 10 degrees and less than or equal to 60 degrees between the extending direction and the base, the cutting tool can remain stationary relative to the base at any position within the angular range when the cutting tool having the first weight or the second weight is mounted on the support arm.The cutting system according to claim 24, characterized in that the cutting tool comprises at least one cutting tool of a first type and a cutting tool of a second type, wherein in the absence of an external force at an angle of more than or equal to 10 degrees and less than or equal to 60 degrees between the extending direction and the base, the cutting tool can remain stationary relative to the base at any position within the angular range when the cutting tool of the first type and the cutting tool of the second type are mounted on the support arm.The cutting system of claim 24, characterized in that when the cutting tool is mounted on the support arm, the coupling assembly allows the cutting tool to assume at least a first state, a second state and a third state with respect to the base, wherein the cutting tool in its first state can remain stationary relative to the base at any position in the path of movement in the absence of an external force, wherein the cutting tool in its second state is moved upwards by a force of the support arm in the absence of an external force to a position in which the cutting tool can rotate upwards by the maximum angle; wherein the cutting tool in its third state rotates downwards itself under the effect of the gravity of the cutting tool in the absence of an external force until it moves to a position in which the cutting tool can rotate downwards by the maximum angle.The cutting system of claim 29, characterized in that the coupling assembly comprises an adjustment assembly disposed at least partially within the support arm and an elastic member, the elastic member configured to provide a load bearing force to the cutting tool, the adjustment assembly configured to adjust the load bearing force provided by the elastic member to switch the cutting tool between the first state, the second state, and the third state.The cutting system according to claim 30, characterized in that the cutting tool is configured to be rotatable about the first axis, the clutch assembly further comprising an intermediate member cooperating with the adjustment assembly and a positioning member fixed within the support arm, one end of the elastic member being connected to the intermediate member and the other end of the elastic member being connected to the positioning member, the adjustment assembly being configured to adjust the distance of the intermediate member to the first axis and thus the support force provided by the elastic member.The cutting system of claim 31, characterized in that in the first state of the cutting tool, the adjustment assembly adjusts the intermediate member to move toward the first axis until the cutting tool changes from the first state to the second state, and wherein in the first state of the cutting tool, the adjustment assembly moves in a direction away from the first axis until the cutting tool changes from the first state to the third state.A cutting system according to claim 31, characterized in that in the first state of the cutting tool, the product of the gravity of the cutting tool and the vertical distance from the first axis to the centre of gravity of the cutting tool and the product of the potential energy of the elastic element and the vertical distance from the positioning element to the first axis during the rotation of the cutting tool are substantially equal.A cutting system according to claim 31, characterized in that in the second state of the cutting tool the product of the gravity of the cutting tool and the vertical distance from the first axis to the centre 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.Cutting system according to claim 31, characterised in that the elastic element is in particular a spring.

Images