Conversion linkage piece for compound saw and compound saw with conversion linkage piece

Abstract

The utility model relates to the technical field of cutting, in particular to a conversion linkage piece for a compound saw and the compound saw with the conversion linkage piece. According to the utility model, the compound saw can be quickly switched between a table cutting mode and a beveling mode. The compound saw comprises a plurality of movable parts, each movable part being in a table cutting position in the table cutting mode and in a beveling position in the beveling mode; the conversion linkage part is operably connected with the plurality of movable parts respectively; one of the movable parts is a driving part, the other movable parts are driven parts, in the process that the driving part moves from the table cutting position to the beveling position, the driving part drives the conversion linkage part to move, and then the conversion linkage part drives the driven parts to move from the table cutting position to the beveling position. Switching between a bench cutting mode and an inclined cutting mode of the compound saw can be completed through one operation action, operation is easy, the structure is simple, machining is facilitated, and productization is further facilitated.

Description

Technical Field

[0001] This utility model relates to the field of cutting technology, and in particular to a conversion linkage for a duplex saw and a duplex saw having the conversion linkage. Background Technology

[0002] A combination saw, also known as a multi-functional saw, is a versatile tool with both miter and table saw modes to meet a variety of cutting needs. Due to its ability to improve work efficiency and provide high-quality cuts, combination saws are popular in many industries, including woodworking and construction. The miter mode is a key feature of combination saws, allowing users to cut at different angles, which is extremely useful for tasks requiring specific angles, such as creating beveled joints, trimming ceiling and floor panels, etc. The table saw mode is another crucial feature, enabling the combination saw to cut vertically, which is very useful for cross-cutting, planing wood, or cutting large workpieces.

[0003] In existing double saws, switching from table cutting mode to beveling mode requires several steps. First, the operator must unlock the saw blade assembly, allowing it to be freely raised, lowered, or rotated to a specific cutting angle. For safety, the upper protective cover assembly must always cover the saw blade assembly in beveling mode, therefore the operator must also lock the upper protective cover assembly. Furthermore, in beveling mode, the operator must perform at least two actions to activate the saw blade assembly to prevent accidental activation and potential accidents. Typically, existing double saws use a movable baffle to achieve this safety requirement; the operator must first raise the movable baffle and then press a switch to activate the saw blade assembly.

[0004] However, in table cutting mode, the upper protective cover assembly needs to be raised to expose the saw blade assembly, and there is no safety requirement for activating the saw blade assembly with at least two steps. However, due to the existing conversion mechanism of the duplex saw, when the operator switches the duplex saw from miter cutting mode to table cutting mode, the upper protective cover must be manually unlocked to expose the saw blade assembly for cutting the upper side in table cutting mode, then the movable baffle must be opened and the switch pressed before the saw blade assembly can be activated for cutting.

[0005] In summary, the operation of existing double saws is very complicated when switching between table cutting and beveling modes, generally requiring two to three actions to complete, which makes it inconvenient for operators. Utility Model Content

[0006] The purpose of this invention is to overcome the problem of complex operation when switching between table cutting and beveling modes in existing double saws, and to provide a switching linkage for double saws and a double saw having the switching linkage, which enables the double saw to quickly switch between table cutting mode and beveling mode.

[0007] The present invention provides a conversion linkage for a double saw, which enables the double saw to quickly switch between table cutting mode and beveling mode. The double saw includes multiple movable parts, each movable part being in the table cutting position in the table cutting mode and in the beveling position in the beveling mode. The conversion linkage is operably connected to each of the multiple movable parts. Among them, one of the multiple movable parts is a driving part, and the other movable parts are driven parts. During the process of the driving part moving from its table cutting position to the beveling position, the driving part drives the conversion linkage to move, and the conversion linkage drives the driven parts to move from their table cutting position to the beveling position. During the process of the driving part moving from its beveling position to its table cutting position, the driving part drives the conversion linkage to move, and the conversion linkage drives the driven parts to move from their beveling position to the table cutting position.

[0008] Preferably, the compound saw includes: a base 23 having a beveled working surface for supporting the workpiece in the beveled mode; and a frame 5 for mounting the saw blade, the frame 5 being pivotally connected to the base 23; wherein the active component is a mode switching lock 18; when the mode switching lock 18 is in the table cutting position, it restricts the movement of the frame 5 relative to the base 23; when the mode switching lock 18 is in the beveled position, it allows the frame 5 to pivot relative to the base 23; wherein the active component is manually operated.

[0009] Preferably, the driven component includes one or more of the following: an upper protective cover lock 2 for locking the upper protective cover 1 in the oblique cutting position, an oblique cutting conversion table cutting switch lock 10 for blocking the start switch 6-1 in the oblique cutting position, a table cutting dust outlet 22 for discharging dust in the table cutting position, and a micro switch baffle for blocking the micro switch of the duplex saw in the table cutting position.

[0010] Preferably, the conversion linkage includes: a single-piece plate-shaped member 17, which is connected to the mode conversion lock 18 and can move between a beveled position and a table-cut position under the action of the mode conversion lock 18; the plate-shaped member 17 is connected to the upper protective cover lock 2; a conversion spring 15, one end of which is connected to the frame 5 and the other end of which is connected to the mode conversion lock 18; the mode conversion lock 18 moves to the beveled position under the pull of the conversion spring 15; and a second linkage 1 for the switch lock. 3. The second link 13 of the switch lock is connected to the plate-shaped member 17; the first link 8 of the switch lock is connected to the second link 13 of the switch lock and the switch lock 10 respectively, and the plate-shaped member 17 drives the switch lock 10 by the second link 13 of the switch lock and the first link 8 of the switch lock; and the dust outlet connecting rod 7 of the platform cutting is connected to the plate-shaped member 17 and the dust outlet 22 respectively, and the plate-shaped member 17 drives the dust outlet 22 by the dust outlet connecting rod 7 of the platform cutting.

[0011] Preferably, the mode conversion lock 18 is provided with: a first through hole 18-1, through which the mode conversion lock 18 is hinged to the frame 5 and rotates around the hinge axis; a second through hole 18-2, through which the mode conversion lock 18 is connected to the plate-shaped member 17 and used to drive the plate-shaped member 17 to move between the oblique cut position and the table cut position; a fourth through hole 18-4, through which the mode conversion lock 18 is connected to the conversion spring 15; and a mode conversion lock hook 18-5, through which the mode conversion lock 18 locks the frame 5 to the base 23.

[0012] Preferably, the plate-shaped member 17 is provided with: a first through groove 17-1, through which the plate-shaped member 17 is connected to the upper protective cover lock 2; a second through groove 17-2, through which the plate-shaped member 17 is connected to the mode conversion lock second through hole 18-2 of the mode conversion lock 18; a third through groove 17-3, through which the plate-shaped member 17 is connected to the switch lock second connecting rod 13; a guide groove 17-4, through which the plate-shaped member 17 is movably installed to the frame 5 by means of a connecting bolt, and the shape of the guide groove 17-4 restricts its movement path; a fourth through groove 17-6, through which the plate-shaped member 17 is connected to the dust outlet connecting rod 7 of the platform; and a micro switch baffle 17-5.

[0013] Preferably, the dust outlet connecting rod 7 is provided with: a second through hole 7-2, which is located at one end of the dust outlet connecting rod 7 and is connected to the dust outlet 22 through the second through hole 7-2; and a first through hole 7-1, which is hinged to the frame 5 through the first through hole 7-1 and rotates around the hinge axis as the rotation center, driven by the plate-shaped member 17; wherein, the other end of the dust outlet connecting rod 7 passes through the fourth through groove 17-6 of the plate-shaped member.

[0014] Preferably, the upper protective cover lock 2 is provided with: an upper protective cover lock second through hole 2-2, through which the upper protective cover lock 2 is hinged to the frame 5, for the upper protective cover lock 2 to rotate about the hinge axis with the frame 5 as the rotation center, driven by the plate-shaped member 17; and an upper protective cover hook lock 2-3, for locking the upper protective cover 1 in the oblique cutting mode, so that it covers the upper side of the saw blade.

[0015] Preferably, the second link 13 of the switch lock is provided with: a first through hole 13-1, through which the second link 13 is hinged to the frame 5 and rotates about the hinge axis as the rotation center, driven by the plate-shaped member 17; a second through hole 13-2, through which the second link 13 is connected to the first link 8; and a switch lock. The second connecting rod has a first through slot 13-3, through which the second connecting rod 13 of the switch lock is connected to the plate-shaped member 17; the first connecting rod 8 of the switch lock is provided with a first through hole 8-1, through which the first connecting rod 8 of the switch lock is connected to the second connecting rod 13; the second through hole 8-2 and the third through hole 8-3 of the first connecting rod of the switch lock are used to install the switch lock 10.

[0016] To achieve another objective of this utility model, this utility model also provides a compound saw, including the above-mentioned conversion linkage component.

[0017] The present invention provides a conversion linkage for a duplex saw and a duplex saw having the conversion linkage, which can complete the conversion between the table cutting mode and the beveling mode of the duplex saw with a single operation. It is simple to operate and has a simple structure, which is conducive to processing and also conducive to productization. Attached Figure Description

[0018] Figure 1 Exploded view of a compound saw with a conversion linkage provided for an embodiment of this utility model;

[0019] Figure 2 This is the first schematic diagram of the double saw table cutting mode;

[0020] Figure 3 This is a second schematic diagram of the double saw table cutting mode;

[0021] Figure 4 This is the first schematic diagram of the compound saw beveling mode;

[0022] Figure 5 This is the second schematic diagram of the compound saw beveling mode;

[0023] Figure 6 This is a perspective view of plate-shaped component 17;

[0024] Figure 7 A 3D view of mode switching lock 18;

[0025] Figure 8 A 3D view of the upper protective cover lock 2;

[0026] Figure 9 This is a perspective view of the second linkage 13 of the switch lock;

[0027] Figure 10 This is a 3D view of the first linkage 8 of the switch lock;

[0028] Figure 11 A schematic diagram for starting switch 6-1;

[0029] Figure 12 A three-dimensional view of the connecting rod 7 for cutting out the dust outlet.

[0030] Attached Figure Labels

[0031] Detailed Implementation

[0032] The technical solution provided by this utility model is further illustrated below with reference to the embodiments.

[0033] Figure 1 An exploded view of a compound saw with a conversion linkage is shown. (Example) Figure 1 As shown, the frame 5, consisting of the frame body 5-1 and the frame cover 5-2, can be hinged to the rocker arm 25. The saw blade assembly 27 and the motor assembly 4 that drives the saw blade assembly 27 can both be connected to the frame 5; the handle assembly 6 can be connected to the frame 5, and as shown... Figure 11 As shown, the handle assembly 6 may have a start switch 6-1 for controlling the continuous start or stop of the compound saw;

[0034] Figure 2 and Figure 3 The table-cutting mode of the compound saw is demonstrated. Furthermore, to more clearly show the connection status of the various components of the compound saw in table-cutting mode, Figure 2 and Figure 3 The frame body 5-1 of frame 5 and the handle assembly 6 are hidden except for the start switch 6-1; Figure 3 It also conceals the frame cover 5-2 of frame 5. For example... Figure 1 and Figure 3 As shown, the rocker arm 25 can be hinged to the base 23, the table cutting work plate 3 can be connected to the top surface of the frame 5, and can have a table cutting work surface that supports the workpiece in table cutting mode; as Figure 1 and Figure 2 As shown, the mode switching lock 18 can be connected to the frame 5 for locking the frame 5 to the base 23 in the table-cutting mode;

[0035] Figure 4 and Figure 5 The beveling mode of this double saw is demonstrated. Furthermore, to more clearly show the connection status of the various components of the double saw in the beveling mode, Figure 4 and Figure 5 The frame body 5-1 of frame 5, the frame cover 5-2 of frame 5, and the handle assembly 6, excluding the start switch 6-1, are concealed. For example... Figure 1 and Figure 5 As shown, the base 23 of the compound saw may have a beveled working surface that supports the workpiece in the bevel cutting mode; the compound saw may also include a micro switch for controlling the operably starting or stopping of the compound saw in the bevel cutting mode.

[0036] As can be seen from the above description, this compound saw can be driven by the handle assembly 6 to raise or lower the frame 5 around the hinge axis between the frame 5 and the rocker arm 25, and can also be driven by the handle assembly 6 to rotate the frame 5 around the hinge axis between the rocker arm 25 and the base 23. The table cutting work plate 3, which serves as the table cutting working surface, can move simultaneously with the frame 5.

[0037] In table cutting mode, a double saw, such as Figure 2 As shown, the mode conversion lock 18 can be located in the mode conversion lock table-lock position that locks the frame 5 to the base 23. The upper protective cover lock 2 can be located in the upper protective cover lock table-unlock position that unlocks the upper protective cover 1, allowing the upper protective cover 1 to rotate freely. Lifting the upper protective cover 1 exposes the upper part of the saw blade assembly 27, while the lower protective cover 26 always covers the lower part of the saw blade. The switch lock 10 can be located in the switch lock table-unlock position that avoids the start switch 6-1 in table-cutting mode; the operator can control the saw blade assembly 27 to work via the start switch 6-1, and the workpiece can be placed as follows: Figure 1 and Figure 3 The table-cutting workpiece 3 shown cuts the workpiece through the upper part of the saw blade assembly 27, and the cutting dust can be discharged through the saw blade assembly 27. Figure 1 and Figure 3 The dust is discharged from the table cutting outlet 22 shown.

[0038] In the beveling mode, the double saw, such as Figure 4 As shown, the mode conversion lock 18 can be located in the mode conversion lock angled unlock position that unlocks the frame 5. The switch lock 10 can be located in the switch lock angled locked position that blocks the start switch 6-1. Figure 5 As shown, the upper protective cover lock 2 can be located in the upper protective cover lock oblique cutting locking position that locks the upper protective cover 1 to the table cutting work plate 3. The upper protective cover 1 can cover the upper part of the saw blade assembly 27. The operator can control the continuous operation of the saw blade assembly 27 through the start switch 6-1, and can also control the operable start of the saw blade assembly 27 through the micro switch. Figure 4 As shown, the workpiece can be placed on the base 23. The operator can drive the frame 5 to lift, lower or rotate freely through the handle assembly 6, and cut the workpiece through the lower part of the saw blade assembly 27. The cutting dust can be discharged through the oblique dust outlet.

[0039] To facilitate faster and more convenient switching between miter and table saw modes, this embodiment discloses a miter saw that requires only a single action to complete the mode switching. The switching function of this miter saw will be described in detail below with reference to the accompanying drawings.

[0040] Function 1: Frame 5 can be locked to put the double saw in table cutting mode, and frame 5 can be unlocked to put the double saw in beveling mode.

[0041] The conversion linkage may include: such as Figure 6 The plate-shaped part 17 shown and as Figure 7 The mode conversion lock 18 shown has a plate-shaped member 17 which may be provided with a second through groove 17-2, corresponding to the position of the mode conversion lock second through hole 18-2 of the mode conversion lock 18, and can be connected by a pivot pin.

[0042] The mode conversion lock 18 can be provided with a mode conversion lock first through hole 18-1, and as shown in the figure Figure 1 The frame 5 shown is hinged, and the mode conversion lock 18 can be hinged with its axis of rotation as the center; the mode conversion lock 18 can be provided with a third through hole 18-3 for mode conversion, such as... Figure 1 As shown, the conversion handle 14 can be installed via the handle pin 16. The mode conversion lock 18 can be provided with a fourth through hole 18-4 for the mode conversion lock, as shown. Figure 2 As shown, it can be hooked by one end of the conversion spring 15, and the other end of the conversion spring 15 can be fixed to the limiting bolt located in the guide groove 17-4 of the plate-shaped piece; the mode conversion lock 18 can also be provided with a mode conversion lock hook lock 18-5 that cooperates with the base for locking.

[0043] When the double saw switches from beveling mode to table cutting mode, the user can rotate the mode switching lock 18 via the switching handle 14, as follows: Figure 2 As shown, the mode conversion lock 18 hook 18-5 of the mode conversion lock 18 can hook onto the conversion fixing pin 20 of the base 23, and the mode conversion lock 18 can be locked to the base 23, so that the duplex saw is in table cutting mode and the frame 5 can be located in the table cutting working position. At the same time, during the rotation of the mode conversion lock 18, the plate-shaped member 17 can be driven to move downward to the plate-shaped member table cutting position.

[0044] When the double saw switches from table cutting mode to beveling mode, the user can rotate the switching handle 14 to unlock the mode switching lock 18-5 from the switching fixing pin 20 of the base 23, putting the double saw into beveling mode. The frame 5 can then be freely raised and lowered, and can also rotate freely. Figure 4 As shown, the mode conversion lock 18 can rotate under the pull of the conversion spring 15, and the mode conversion lock hook 18-5 can be engaged as follows. Figure 2 The limiting groove 31 shown can simultaneously drive the plate-shaped member 17 to move upward to the oblique cut position of the plate-shaped member.

[0045] In this embodiment, the mode switching lock 18 is manual, but in other embodiments, the mode switching lock 18 can be in other forms, such as electric.

[0046] In this embodiment, the mode conversion lock 18 can lock the frame 5 by hook lock. In other embodiments, the mode conversion lock 18 can also lock the frame 5 by other means, such as clamp lock.

[0047] In addition, in this embodiment, the frame 5 can be locked to the base 23. In other embodiments, the frame 5 can also be locked to other positions, such as the base assembly 24.

[0048] Function 2: The upper protective cover 1 can be unlocked in the table cutting mode and locked in the diagonal cutting mode.

[0049] like Figure 8 The upper protective cover lock 2 shown can be provided with a first through hole 2-1 for the upper protective cover lock, and as shown in the figure Figure 6 The plate-shaped member 17 shown is connected to the first through groove 17-1; the upper protective cover lock 2 may be provided with a second through hole 2-2, which is hinged to the frame 5. The upper protective cover lock 2 may be rotated with the hinge axis of the frame 5 as the rotation center, driven by the plate-shaped member 17; the upper protective cover lock 2 may also be provided with an upper protective cover hook lock 2-3, which is used to lock the upper protective cover 1.

[0050] like Figure 2As shown, during the process of the plate-shaped part 17 moving downward to the plate-shaped part table-cutting position, the upper protective cover lock 2 can be driven to move to the upper protective cover lock table-cutting unlocking position that unlocks the upper protective cover 1. That is, the upper protective cover lock 2 can rotate away from the opening of the upper protective cover lock 2, so that the upper protective cover hook lock 2-3 is unlocked from the upper protective cover 1 in the table-cutting mode of the double saw.

[0051] like Figure 4 As shown, during the upward movement of the plate-shaped part 17 to the oblique cutting position of the plate-shaped part, the upper protective cover lock 2 can be driven to move from the upper protective cover lock table unlocking position to the upper protective cover lock oblique cutting locking position, that is, it can be rotated towards the opening direction of the upper protective cover lock 2, so that the duplex saw locks the upper protective cover 1 through the upper protective cover hook lock 2-3 in the oblique cutting mode.

[0052] In this embodiment, the upper protective cover lock 2 can lock the upper protective cover 1 by hook lock. In other embodiments, the upper protective cover lock 2 can also lock the upper protective cover 1 by other means.

[0053] In this embodiment, the plate-shaped member 17 can drive the upper protective cover lock 2 when switching between the oblique cutting mode and the table cutting mode. In other embodiments, the plate-shaped member 17 can also drive the upper protective cover lock 2 in one of the modes.

[0054] Function 3: In table-cutting mode, switch lock 10 can be driven to avoid start switch 6-1; in angled-cutting mode, switch lock 10 can be driven to block start switch 6-1.

[0055] like Figure 6 The plate-shaped member 17 shown may be provided with a third through groove 17-3, as shown in the figure. Figure 9 The second linkage 13 of the switch lock shown corresponds to the position of the first through slot 13-3 and can be connected by a conversion pin; the second linkage 13 can be provided with a first through hole 13-1, and is hinged to the frame 5 by the conversion pin; the second linkage 13 can be rotated with the hinge axis as the rotation center by the drive of the plate-shaped member 17; the second linkage 13 can be provided with a second through hole 13-2, and is connected to the first through slot 13-3 of the second linkage shown. Figure 10 The switch lock first link 8 shown corresponds to the position of the first through hole 8-1 of the first link of the switch lock, and is connected by a conversion pin; Figure 1 The switch lock 10 and switch lock torsion spring 11 shown can be located between the second through hole 8-2 and the third through hole 8-3 of the first link of the switch lock, and are connected by the switch lock fixing rod 9.

[0056] like Figure 2As shown, during the downward movement of the plate-shaped component 17 to the plate-shaped component table-cutting position, the conversion pin connected to the third through groove 17-3 of the plate-shaped component can slide towards the first through hole 13-1 of the second link of the switch lock within the first through groove 13-3 of the second link of the switch lock. This serves to drive the second link of the switch lock 13 to rotate and drive the first link of the switch lock 8 to move towards the rocker arm 25. The first link of the switch lock 8 can drive the switch lock 10 to move towards the rocker arm 25. The switch lock 10 can then abut against the start switch 6-1. As it moves towards the rocker arm 25 to the table-cutting unlocking position, the switch lock 10 can resist the torque of the switch lock torsion spring 11, exposing the start switch 6-1. This achieves the purpose of the switch lock 10 avoiding the start switch 6-1 when the double saw is in table-cutting mode.

[0057] like Figure 4 As shown, during the upward movement of the plate-shaped component 17 to the oblique cutting position, the conversion pin connected to the third through groove 17-3 of the plate-shaped component can slide away from the first through hole 13-1 of the second connecting rod of the switch lock within the first through groove 13-3 of the second connecting rod of the switch lock. This serves to drive the second connecting rod of the switch lock 13 to rotate and drive the first connecting rod of the switch lock 8 to move away from the rocker arm 25. The first connecting rod of the switch lock 8 can drive the switch lock 10 to move away from the rocker arm 25 to the oblique cutting locking position of the switch lock. Under the torque of the switch lock torsion spring 11, the switch lock 10 can block the start switch 6-1, thus achieving the purpose of the switch lock 10 blocking the start switch 6-1 when the double saw is in oblique cutting mode.

[0058] In this embodiment, the plate-shaped member 17 can drive the switch lock 10 when switching between the oblique cutting mode and the table cutting mode. In other embodiments, the plate-shaped member 17 can also drive the switch lock 10 in one of the modes.

[0059] Function 4: In table cutting mode, the table cutting dust outlet 22 can be pushed out to extend outside the frame 5; in oblique cutting mode, the table cutting dust outlet 22 can be pulled back to be located inside the frame 5.

[0060] like Figure 12 One end of the connecting rod 7 for the dust outlet of the table cutting machine shown can be provided with a second through hole 7-2 for connecting with the dust outlet 22 of the table cutting machine, and the other end can pass through as shown in the figure. Figure 6 The plate-shaped member 17 shown has a fourth through groove 17-6; the cutting dust outlet connecting rod 7 can also be provided with a first through hole 7-1 for hinged connection with the frame 5. The cutting dust outlet connecting rod 7 can be hinged with its axis of rotation as the center of rotation, and rotated through the transmission of the plate-shaped member 17; as shown Figure 1 As shown, the dust outlet 22 of the cutting table can be embedded in the frame 5 and can also be connected to the dust guide cover 19 of the cutting table.

[0061] like Figure 3As shown, during the process of the plate-shaped part 17 moving downward to the plate-shaped part table cutting position, the table cutting dust outlet 22 can be pushed to move outward of the frame 5 by the table cutting dust outlet connecting rod 7, so that when the duplex saw is in table cutting mode, a part of the table cutting dust outlet 22 can extend out of the frame 5 for installing the table cutting dust collection bag. The table cutting dust outlet 22 can serve as a channel between the table cutting dust guide hood 19 and the table cutting dust collection bag.

[0062] like Figure 5 As shown, during the upward movement of the plate-shaped component 17 to the oblique cutting position, the dust outlet 22 can be pulled towards the interior of the frame 5 by the dust outlet linkage 7. This ensures that when the double saw is in oblique cutting mode, the dust outlet 22 is completely positioned inside the frame 5. Positioning the dust outlet 22 inside the frame 5 during oblique cutting prevents dust generated during the oblique cutting process from entering the dust outlet 22 and subsequently the frame 5. This not only ensures the cleanliness of the double saw's interior but also allows most of the dust generated during oblique cutting to be discharged through the dust outlet 29, facilitating dust collection by the user.

[0063] In this embodiment, the plate-shaped member 17 can drive the dust outlet 22 of the table cutting when switching between the oblique cutting mode and the table cutting mode. In other embodiments, the plate-shaped member 17 can also drive the dust outlet 22 of the table cutting in one of the modes.

[0064] Function 5: The micro switch can be locked in table-cutting mode and unlocked in slant-cutting mode.

[0065] Figure 6 The plate-shaped component 17 shown may be provided with a micro switch baffle 17-5, which can be close to the micro switch to lock the micro switch; when the duplex saw changes from table cutting mode to bevel cutting mode, the micro switch baffle 17-5 can be moved away from the micro switch to unlock the micro switch.

[0066] During the process of the plate-shaped part 17 moving downward to the plate-shaped part table cutting position, that is, when the double saw changes from the beveling mode to the table cutting mode, the micro switch baffle 17-5 can approach the micro switch, so that the distance between the micro switch baffle 17-5 and the micro switch is less than the distance of a finger. The user's finger cannot be inserted into the space, so the micro switch is locked.

[0067] During the upward movement of the plate-shaped component 17 to the beveling position, i.e., when the double saw switches from table cutting mode to beveling mode, the micro switch baffle 17-5 can move away from the micro switch. This allows the distance between the micro switch baffle 17-5 and the micro switch to be greater than or equal to the distance of a finger, enabling the user to insert their finger into this space and operate the micro switch. Therefore, the micro switch is unlocked.

[0068] In this embodiment, the micro switch baffle 17-5 can be disposed on the plate-shaped member 17. In other embodiments, the micro switch baffle 17-5 can also be an independent structure and can be driven by the plate-shaped member 17.

[0069] In this embodiment, the plate-shaped member 17 can drive the micro switch baffle 17-5 when switching between the oblique cutting mode and the table cutting mode. In other embodiments, the plate-shaped member 17 can also drive the micro switch baffle 17-5 in one of the modes.

[0070] It is worth noting that the above embodiments only show the mode conversion lock 18 as the active component. In other embodiments, other movable components may also serve as active components. The above embodiments only show the active component driving all driven components to perform conversion. In other embodiments, the active component may also drive only one or more driven components to perform conversion, that is, only one or more of the above conversion functions are implemented.

[0071] Furthermore, the specification and claims of this utility model use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for illustrative purposes and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0072] As can be seen from the above detailed description of this utility model:

[0073] 1. The conversion linkage for a compound saw provided by this utility model can be completed in one operation when switching from the beveling mode to the table cutting mode: ① The frame 5 can be locked to the base 23, so that the saw blade assembly 27 installed on the frame 5 is in the table cutting working position; ② The upper protective cover lock 2 can be driven to unlock it from the upper protective cover 1; ③ The switch lock 10 can be driven to avoid the start switch 6-1; ④ The table cutting dust outlet 22 can be pushed out to extend outside the frame 5 for installing the dust collection bag 28; ⑤ The micro switch can be locked.

[0074] 2. The conversion linkage for a duplex saw provided by this utility model can be completed in one operation when switching from table cutting mode to bevel cutting mode: ① The frame 5 can be unlocked from the base 23, so that the saw blade assembly 27 installed on the frame 5 can be raised, lowered or rotated with the frame 5; ② The upper protective cover lock 2 can be driven to lock it with the upper protective cover 1; ③ The switch lock 10 can be driven to block the start switch 6-1; ④ The table cutting dust outlet 22 can be pulled back to be inside the frame 5; ⑤ The micro switch can be unlocked.

[0075] 3. The conversion linkage component for duplex saws provided by this utility model is simple to operate and has a simple structure, which is conducive to processing and productization.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A conversion linkage for a compound saw, characterized in that, The dual saw can quickly switch between table cutting mode and bevel cutting mode; The compound saw includes multiple movable parts, each movable part being in the table cutting position in the table cutting mode and in the bevel cutting position in the bevel cutting mode; The conversion linkage is operably connected to each of the plurality of movable parts; Among them, one of the plurality of movable parts is an active part, and the other movable parts are driven parts; During the process of the active component moving from its table-cutting position to its oblique-cutting position, the active component drives the conversion linkage to move, and the conversion linkage drives the driven component to move from its table-cutting position to its oblique-cutting position. During the process of moving the active component from its oblique cutting position to the table cutting position, the active component drives the conversion linkage to move, and the conversion linkage drives the driven component to move from its oblique cutting position to the table cutting position.

2. The conversion linkage for a compound saw according to claim 1, characterized in that, The compound saw includes: Base (23), said base (23) having a beveled working surface for supporting the workpiece in said beveled mode; and A frame (5) for mounting the saw blade, the frame (5) being pivotally connected to the base (23). The active component is a mode switching lock (18); when the mode switching lock (18) is in the table-cut position, it restricts the movement of the frame (5) relative to the base (23); when the mode switching lock (18) is in the oblique-cut position, it allows the frame (5) to pivot relative to the base (23). The active component is manually operated.

3. The conversion linkage for a compound saw according to claim 2, characterized in that, The driven component includes one or more of the following: an upper protective cover lock (2) for locking the upper protective cover (1) in the oblique cutting position; an oblique cutting conversion table cutting switch lock (10) for blocking the start switch (6-1) in the oblique cutting position; a table cutting dust outlet (22) for discharging dust in the table cutting position; and a micro switch baffle for blocking the micro switch of the duplex saw in the table cutting position.

4. The conversion linkage for a compound saw according to claim 3, characterized in that, The conversion linkage includes: A single-piece plate (17) is connected to the mode conversion lock (18) and can move between the oblique cut position and the table cut position under the drive of the mode conversion lock (18). The plate (17) is connected to the upper protective cover lock (2). A conversion spring (15) is connected at one end to the frame (5) and at the other end to the mode conversion lock (18). The mode conversion lock (18) moves to the oblique position under the pull of the conversion spring (15). The second link (13) of the switch lock is connected to the plate (17). The first link (8) of the switch lock is connected to the second link (13) of the switch lock and the switch lock (10) respectively. The plate-shaped member (17) drives the switch lock (10) using the second link (13) and the first link (8). The table cutting dust outlet connecting rod (7) is connected to the plate-shaped member (17) and the table cutting dust outlet (22) respectively. The plate-shaped member (17) drives the table cutting dust outlet (22) by means of the table cutting dust outlet connecting rod (7).

5. The conversion linkage for a compound saw according to claim 4, characterized in that, The mode switching lock (18) is configured with: The mode conversion lock has a first through hole (18-1), and the mode conversion lock (18) is hinged to the frame (5) through the first through hole (18-1) of the mode conversion lock, with the hinge axis as the center of rotation; The mode conversion lock has a second through hole (18-2), and the mode conversion lock (18) is connected to the plate-shaped member (17) through the second through hole (18-2) to drive the plate-shaped member (17) to move between the oblique cut position and the table cut position; The mode conversion lock has a fourth through hole (18-4), through which the mode conversion lock (18) is connected to the conversion spring (15); and The mode conversion lock (18) locks the frame (5) to the base (23) via the mode conversion lock hook (18-5).

6. The conversion linkage for a compound saw according to claim 5, characterized in that, The plate-shaped member (17) is provided with: The plate-shaped member has a first through groove (17-1), and the plate-shaped member (17) is connected to the upper protective cover lock (2) through the first through groove (17-1). The plate-shaped member has a second through slot (17-2), and the plate-shaped member (17) is connected to the mode conversion lock second through hole (18-2) of the mode conversion lock (18) through the second through slot (17-2). The plate-shaped member has a third through slot (17-3), and the plate-shaped member (17) is connected to the second linkage (13) of the switch lock through the third through slot (17-3). Plate-shaped guide groove (17-4), the plate-shaped member (17) is movably installed to the frame (5) by means of connecting bolts through the plate-shaped guide groove (17-4), and its movement path is restricted by the shape of the plate-shaped guide groove (17-4); The plate-shaped member has a fourth through slot (17-6), through which the plate-shaped member (17) is connected to the stage-cut dust outlet connecting rod (7); and Micro switch baffle (17-5).

7. The conversion linkage for a compound saw according to claim 6, characterized in that, The dust outlet connecting rod (7) of the table cutter is provided with: The second through hole (7-2) of the dust outlet connecting rod is provided at one end of the dust outlet connecting rod (7), and the dust outlet connecting rod (7) is connected to the dust outlet (22) through the second through hole (7-2); and The first through hole (7-1) of the dust outlet connecting rod of the table cutter is used to hinge the dust outlet connecting rod (7) to the frame (5), and rotates around the hinge axis as the rotation center, driven by the plate-shaped member (17); wherein, The other end of the dust outlet connecting rod (7) passes through the fourth through groove (17-6) of the plate-shaped member.

8. The conversion linkage for a compound saw according to claim 4 or 5, characterized in that, The upper protective cover lock (2) is equipped with: The upper protective cover lock has a second through hole (2-2). The upper protective cover lock (2) is hinged to the frame (5) through the second through hole (2-2). The upper protective cover lock (2) is used to rotate around the hinge axis with the frame (5) as the rotation center, driven by the plate (17). and Upper protective cover hook lock (2-3) is used to lock the upper protective cover (1) in the beveling mode so that it covers the upper side of the saw blade.

9. The conversion linkage for a compound saw according to claim 4 or 5, characterized in that, The second linkage (13) of the switch lock is provided with: The second link of the switch lock has a first through hole (13-1). The second link of the switch lock (13) is hinged to the frame (5) through the first through hole (13-1) of the second link of the switch lock, and rotates around the hinge axis as the rotation center through the drive of the plate (17). The second through hole (13-2) of the second link of the switch lock, the second link (13) of the switch lock is connected to the first link (8) of the switch lock through the second through hole (13-2); and The second link of the switch lock has a first through slot (13-3), and the second link of the switch lock (13) is connected to the plate-shaped member (17) through the first through slot (13-3). The first link (8) of the switch lock is provided with: The first through hole (8-1) of the first link of the switch lock is connected to the second link (13) of the switch lock through the first through hole (8-1). The second through hole (8-2) and the third through hole (8-3) of the first link of the switch lock are used to install the switch lock (10).

10. A compound saw, comprising the conversion linkage as described in any one of claims 1-9.

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