TWM446669U - Power saw - Google Patents

Abstract

A power saw, comprising: a base; a table attached to the base; a supporting member, and a saw unit pivotably connected to the supporting member; and the table having a first working surface for supporting a workpiece; a fence attached to the base, and the fence having a stopping surface for stopping the workpiece, and a first working area is formed by the stopping surface and the first working surface for miter cutting; the base having a second working surface for supporting the workpiece, a second working area is formed by the second working surface and the table for ripping cutting. The second working area is disposed between the second working surface and the table, which makes the whole power saw has the advantages of simple structure, compact.

Description

Cutting Machine

The present invention relates to a cutting machine, and more particularly to a cutting machine having two modes of operation.

As a cutting tool, the traditional cutting machine has a wide range of applications and can be used to cut many metal or non-metal materials, making cutting fast and convenient. A conventional cutting machine generally includes a work table, a cutting unit having a motor and a saw blade located above the work table, and a guard rail disposed on the work table for positioning the workpiece, wherein the work table has a table supporting surface for supporting the workpiece and is disposed on the table A longitudinally extending cutting groove on the table, the saw blade can at least partially extend into the cutting groove, and the cutting unit is rotatably coupled to the table around a pivoting shaft fixed to the table for cutting the workpiece. However, in the conventional cutting machine, the size of the workpiece to be cut is limited due to the position of the table and the blade. Therefore, it is only necessary to use a cutting tool such as a table saw for a workpiece having a large size.

To this end, the industry's technicians have made some improvements, such as the emergence of a cutting machine with two modes of operation on the market, that is, the cutting machine has a table cutting mode and a chamfering mode. The cutting machine comprises a base, a lower table pivotally disposed on the base, and a cutting unit disposed on the lower table by pivoting, wherein the cutting unit comprises a fixed cover and a movable cover movably connected with respect to the fixed cover , the saw blade and the motor that drives the saw blade to rotate. In addition, the upper guard is provided with an upper table for supporting the workpiece. In the table-cut mode, the workpiece is placed on the upper table for bench cutting; in the bevel mode, the workpiece is placed on the lower table for beveling. Since the cutting machine needs to additionally provide a work table in the fixed cover, since the work table needs the fixed cover support, the size of the work table is limited, and the support is not stable enough. For cases where longer workpieces need to be machined, additional Auxiliary support device. It is also necessary to set the necessary operating elements on the fixed cover under the workbench, such as the switch in the console cut mode and the necessary operating handle in the bevel mode, so the whole machine structure is complicated and not compact, and cutting The height of the workpiece is also limited.

The technical problem to be solved by the present invention is to provide a cutting machine having a simple cutting mode and a beveling mode.

The technical solution adopted by the present invention to solve the above technical problem: a cutting machine comprising: a base; a work platform supported on the base, the worktable having a first working surface supporting the workpiece; and a support frame connected to the worktable; a rotating cutting unit coupled to the support frame, the cutting unit including a fixed shield rotatably coupled to the support frame, a motor housing coupled to the fixed shield, a saw blade, and a drive saw blade mounted in the motor housing a first axis rotating motor; a guard rail connected to the base, the guard rail having an abutting surface against the workpiece, the abutting surface and the first working surface forming a first working area; the base having a supporting workpiece a second working surface, the cutting machine has a second working area formed between the second working surface and the worktable, the cutting machine has a chamfering mode and a table cutting mode, and the saw blade is at least partially located in the chamfering mode The first work area; the saw blade is at least partially located in the second work area when in the desk cutting mode.

Compared with the prior art, the utility model has the beneficial effects that the cutting machine has two working areas, and the cutting mode of the chamfering mode and the table cutting mode can be conveniently realized; and the second working area of the table cutting mode is set at The structure of the entire cutting machine is simple and compact between the second working surface of the base and the work table.

Preferably, the cutting machine comprises a table locking release mechanism, and the table locking and releasing mechanism is operable The conversion of the desk cutting mode to the chamfer mode.

Preferably, the table locking release mechanism is disposed between the cutting unit and the table.

Preferably, the table locking release mechanism comprises an operating button movably disposed on the table, a locking member coupled to the operating button, and a fitting disposed on the cutting unit, wherein the operating button is operable to engage the locking member The fitting is such that the cutting machine is in the table cutting mode; the locking member and the fitting are disengaged for converting the table cutting mode into the chamfer mode.

Preferably, the engaging member is a card slot disposed on the fixed cover, and the locking member is provided with a hook for clamping the card slot.

Preferably, the operating button is slidably disposed on the table, and a spring is disposed between the operating button and the table, the spring maintaining the operating button at a position facing the table.

Preferably, the table locking release mechanism is disposed between the cutting unit and the support frame.

Preferably, the table locking release mechanism includes a locking pin disposed on one of the cutting unit and the support frame and a locking hole disposed on the other, the locking pin mating with the locking hole, the cutting machine being in the table cutting mode.

Preferably, the cutting machine includes a bevel lock release mechanism operable to convert the bevel mode to a table cut mode.

Preferably, the bevel lock release mechanism includes a stopper movably disposed on one of the support frame and the cutting unit and a stopper disposed on the other, the stopper and the stopper being disengaged, Convert the chamfer mode to the desk cut mode.

Preferably, the stopper is a stopper pin movably disposed on the support frame, the stopper is a groove fixedly disposed on the fixed shield, the stopper pin is received in the groove, and the cutter is chamfered mode.

Preferably, the support frame is further provided with an adjusting screw for engaging with the stopping pin.

Preferably, the stopper is a rotatable rotating block disposed on the support frame, and the stop member is a boss fixedly disposed on the fixed cover. When the rotating block cooperates with the boss, the cutting machine It is in the chamfer mode and the cutting unit is in the lower limit position.

Preferably, the cutting machine comprises a first switch for controlling the operation of the motor in the bevel mode; a second switch for controlling the operation of the motor in the table cutting mode, the cutting machine further comprising a safety switch, the safety switch having two a state in which the cutting machine is in a chamfering mode, the safety switch allowing the first switch to control the motor and the second switch to control the motor; in the second state, the cutting machine is in a table-cut mode, the safety switch allowing The second switch controls the motor to limit the first switch to control the motor.

Preferably, the support frame is provided with a projection, the safety switch having a contact that is selectively engageable with the contact for switching the safety switch between the first state and the second state.

Preferably, a positioning mechanism is provided between the cutting unit and the base, and in the table cutting mode, the positioning mechanism is used to ensure that the saw blade is perpendicular to the second working surface.

Preferably, the positioning mechanism comprises a positioning hole disposed on the motor housing and a positioning pin disposed on the guard rail. When the positioning hole and the positioning pin are engaged, the saw blade is perpendicular to the second working surface.

Preferably, the cutting machine is further provided with a workpiece pressing mechanism, the workpiece pressing mechanism comprising a pressing plate movably disposed on the working table and a limiting mechanism for restraining the pressing plate at a predetermined position.

Preferably, the pressure plate is rotatably coupled to the table by a parallel four-bar linkage mechanism, and an elastic member is disposed between the pressure plate and the table, the elastic member maintaining the pressure plate at the second working surface at all times. position.

Preferably, the limiting mechanism comprises a limiting member matched with the pressure plate, and a drive for driving the limiting member And a driving member, a fixing device for fixing the driving member relative to the working table, wherein the driving member is movably disposed on the working table, and the driving member drives the limiting member to cooperate with the pressing plate.

Preferably, the driving member is rotatably coupled to the table and is provided with an eccentric pin, the driving mechanism comprising a first rod connected to the eccentric pin and a second rod pivotally connected to the first rod, disposed at A slide bar on the table, wherein the drive member is operable to move the first rod and the second rod to drive the limit member to slide along the slide rod.

Preferably, the limiting member is provided with a limiting surface, and the pressing plate is provided with a limiting block, and the limiting surface cooperates with the limiting block to limit the pressing plate to a predetermined position.

Preferably, the cutting machine further includes an auxiliary guiding attachment comprising a body that can be placed on the second working surface and a locking mechanism that locks the main body on the base, wherein the main body has a guide for guiding the workpiece And the height of the body is less than a minimum distance between the pressure plate and the second working surface.

Preferably, the first and second working faces are located on the same side of the first axis.

Preferably, the first and second working faces are parallel.

Preferably, the distance between the first working surface and the second working surface is smaller than the height of the base.

Preferably, the distance between the first working surface and the second working surface is smaller than the radius of the saw blade.

The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

As shown in Fig. 1, the cutting machine 300 includes a base 30, a table 32 disposed on the base 30, a support frame 34 coupled to the table 32, and a cutting unit 36 coupled to the support frame 34. The cutting unit 36 is pivotally coupled to the support frame 34 by a pivot shaft 38 such that the cutting unit 36 It is possible to pivot up and down relative to the base 30 about the pivot axis 40.

The cutter 300 has a chamfering mode and a table cutting mode. In the description of the present work, unless otherwise indicated, the directional terms, such as left, right, front, back, up and down, are referenced to the direction in which the cutter in the bevel mode is normally operated. If the operator is close to the front side of the cutting machine, away from the operator is the rear side of the cutting machine. The main operation mode of the chamfering mode is the same as that of the conventional oblique cutting machine, that is, the workpiece is fixed relative to the table 32, and the workpiece is cut by the cutting unit 36. The main operation mode of the table cutting mode is the same as that of the conventional table saw, that is, the cutting unit is opposite to the table 32 or The base 30 is fixed and cut by moving the workpiece.

The support frame 34 is rotatable relative to the table 32 in both clockwise and counterclockwise directions to tilt the workpiece to perform oblique cutting of the workpiece. An inclined locking mechanism 42 for locking the support frame 34 to the table 32 is provided between the support frame 34 and the table 32 (see Fig. 3). The tilt locking mechanism 42 locks the support frame 34 to different tilt positions to cut the workpiece at different oblique angles.

The base 30 has a base support surface 44 that supports the workpiece in a horizontal direction. A guard rail 46 is provided on the base 30. The guard rail 46 has an abutment surface 48 disposed perpendicularly to the base support surface 44 for primarily abutting the workpiece in a vertical direction for easy cutting.

The table 32 is supported on the base 30 with a first work surface 50 for supporting the workpiece in a horizontal direction. The first working surface 50 is substantially flush with the base support surface 44 and cooperate to support the workpiece together. The table 32 is further provided with a first cutting groove 52 extending in the longitudinal direction.

The first working surface 50 and the abutting surface 48 form a first working area 53. When the cutter is in the bevel mode, the workpiece is placed in the first working area 53.

The table 32 is rotatably disposed on the base 30 such that the table 32 can drive the cutting unit 36 is rotated relative to the base 30 to facilitate cutting of the workpiece at different oblique angles.

In the present embodiment, as shown in Fig. 2, the table 32 is provided with a flange 31, and the base 30 is provided with a boss 33 which cooperates with the flange 31. The table 32 is rotatably disposed on the base 30. In order to make the rotation of the table 32 relative to the base 30 more convenient, the table 32 is further provided with a circular arc-shaped groove (not labeled), and the guard rail 46 is provided with a pin received in the circular-shaped groove ( Not numbered). When the table 32 is rotated relative to the base 30, the pin slides in a circular arc-shaped groove to guide the oblique angle.

Referring again to Figure 1, the cutting machine is provided with a beveled locking mechanism 54 that locks the table 32 to the base 30. In the present embodiment, the bevel locking mechanism 54 includes a locking screw 56 threaded onto the guard rail 46. The table 32 is locked relative to the base 30 by tightening the locking screw 56 such that its end face is in contact with the first working surface 50 of the table 32.

The cutting unit 36 includes a fixed shroud 35 pivotally coupled to the support frame 34, a motor housing 37 coupled to the fixed shroud 35, a motor (not shown) housed in the motor housing 37, and a saw blade driven by the motor. 39. A movable shield 43 connected to the fixed shield 35. Therein, the saw blade 39 rotates about the first axis 45. An operating handle 41 is also provided on the cutting unit 36, and pressing the operating handle 41 allows the cutting unit 36 to pivot about the pivot axis 40 to perform the cutting operation. The fixed shroud 35 is typically fixedly coupled to the motor housing 37 for covering a portion of the saw blade 39. The movable shield 43 is hinged to the fixed shield 35 for covering the remaining saw blade 39 when the cutter 300 is in the non-cutting position, and the movable shield 43 is rotatable relative to the fixed shield 35 to expose the saw blade 39. Used to cut the workpiece.

As shown in FIG. 3, when the cutter is in the bevel mode, the workpiece is placed in the first working area 53, and the saw blade 39 is at least partially located in the first working area 53. In operation, the workpiece is placed on the first working surface 50 while abutting against the abutment surface 48. Then the operator operates the handle 41 and presses down. The cutting unit 36 is pivoted about a pivot axis axis 40. At this point, the saw blade 39 is then lowered to cut the workpiece. If it is necessary to cut the workpiece, the saw blade 39 will pass through the first cutting groove 52, and if it is not necessary to cut the workpiece, it is only necessary to press the cutting unit 36 down to a certain position.

Referring again to Figures 1 and 2, the base 30 has a second working surface 58 for supporting the workpiece in a horizontal direction, and the base 30 is further provided with a second cutting groove 60 extending in the longitudinal direction. The second cutting groove 60 is parallel to the first cutting groove 52 and located below the first cutting groove 52. In the present embodiment, the plane formed by the center line of the second cutting groove 60 and the center line of the first cutting groove 52 is perpendicular to the first working surface 50. Of course, it will be appreciated by those skilled in the art that the base 30 can also be provided with only a recess that can receive a partial saw blade 39 that allows the saw blade 39 to rotate about the table 32 within a certain range.

The cutter has a second working area 61 formed between the second work surface 58 and the table 32. When the workpiece is placed in the second working area 61, the saw blade 39 is at least partially located in the second working area 61. When the cutter is in the table-cut mode, the saw blade 39 passes through the first cutting groove 52 into the second working area 61. At this time, the saw blade 39 may pass through the second cutting groove 60 for cutting the workpiece; or may not pass through the second cutting groove 60 for cutting the workpiece.

In order to make the structure of the cutting machine simpler and more compact. The first working face 50 and the second working face 58 are located on the same side of the first axis 45. That is, the first and second working faces 50 and 58 are both located below the first axis 45. In the present embodiment, the first and second working faces 50 and 58 are disposed in parallel, and the distance between the two planes is smaller than the height of the base 30. Moreover, the distance between the first working face 50 and the second working face 58 is less than the radius of the saw blade 39.

The second working surface 50 is disposed on the base 30, and only the size of the base 30 needs to be changed to increase the cutting ability in the table cutting mode.

The second working surface 50 is disposed on the base 30, and the cutting ability of the cutting machine in the chamfer mode is not affected at all.

Since the distance between the second working surface 50 and the lower bottom surface of the base 30 is small, the cutting machine of the present invention can be used without adding an additional auxiliary supporting device as compared with the solution of placing the second working table on the fixed protective cover. Machining longer workpieces.

The cutting machine also has a mode switching mechanism that converts between the chamfering mode and the table cutting mode. The mode switching mechanism includes a table locking release mechanism 64 that operatively converts the cutter from the table cutting mode to the bevel mode.

The mode switching mechanism further includes a bevel lock release mechanism 62 that operatively converts the bevel mode to a desk cut mode. Of course, those skilled in the art will also appreciate that the table locking release mechanism 64 and the bevel lock release mechanism 62 can be a mechanism.

In the present embodiment, the bevel lock release mechanism 62 is disposed between the cutting unit 36 and the support frame 34 for controlling the pivoting range of the cutting unit 36 in the bevel mode. At the same time, the bevel mode can also be converted to the table cut mode by operating the bevel lock release mechanism 62.

The bevel lock release mechanism 62 includes a stopper movably disposed on one of the support frame 34 and the cutting unit 36 and a stopper disposed on the other one, when the stopper and the stopper are disengaged for Convert the bevel mode to the desk cut mode.

In the present embodiment, as shown in FIG. 4, the stopper is a stopper pin 66 movably disposed on the support frame 34. The stopper is a groove 68 fixedly disposed on the fixed shield 35, and the stopper pin 66 is received. In the groove 68, the cutter is in a bevel mode.

The support frame 34 is provided with a circular hole 65 through which the stop pin 66 is received in the recess 68. And a spring (not shown) is further disposed between the stop pin 66 and the support frame 34, the spring makes the stop pin 66 is always located in the recess 68.

The groove 68 is a circular arc groove having both end faces 67 and 69. The stop pin 66 can slide in the groove 68 as the cutting unit 36 pivots about the pivot axis 40 relative to the support frame 34. When the stopper pin 66 is engaged with the end surface 67, the upper limit position of the cutting unit 36 is defined, thus preventing the cutting unit 36 from moving excessively upward; when the stopper pin 66 is engaged with the end surface 69, the lowermost position of the cutting unit 36 is defined, The cutting unit 36 is prevented from being excessively lowered.

When it is required to convert the bevel mode into the table cutting mode, the stopper pin 66 is pulled to overcome the spring force, so that the stopper pin 66 is disengaged from the groove 68, and at the same time, pressing the cutting unit 36 can cause the blade 39 to enter the second work. Area 61 (see Figure 1), thus entering the desk cut mode.

In order to adjust the lower limit position of the cutter in the bevel mode, an adjustment screw 70 is further disposed on the fixed shield 35, and the adjustment screw 70 passes through the end surface 69 of the groove 68 and is screwed to the fixed shield 35. The end face of the adjusting screw 70 can be engaged with the retaining pin 66 instead of the end face 69 of the recess 68 to adjust the lower limit position of the cutter by adjusting the length of the screw 70 into the recess 68.

Of course, there are many specific implementations of the bevel lock release mechanism 62. For example, the stopper is a rotatable rotating block disposed on the support frame 34, and the stopper is a convex surface fixedly disposed on the fixed shield 35. When the rotating block is mated with the convex surface, the cutting machine is in the chamfering mode and the cutting unit 36 is in the lower limit position. When the chamfering mode needs to be converted into the table cutting mode, the rotating block is rotated to disengage the convex surface from the rotating block, and at the same time, the cutting unit 36 is pressed down, and the cutting unit 36 can be further pressed down to enter the table cutting mode.

The table locking release mechanism 64 may be disposed between the cutting unit 36 and the table 32, or between the cutting unit 36 and the base 30, or between the cutting unit 36 and the support frame 34, or at the cutting unit 36. Between the guard rails 46. And the table locking release mechanism 64 main To be used to control the cutting unit 36 in the table cutting mode, the cutting unit 36 remains fixed relative to the table 32 or the base 30, and no up and down motion can be generated. Thereby maintaining the cutting machine in the table cutting mode, safe operation. At the same time, the table cutting mode can also be converted into the chamfer mode by operating the table locking release mechanism 64, that is, the locking of the cutting unit 36 is released, so that the cutting unit 36 can be moved relative to the table 32 or the base 30.

In the present embodiment, the table locking release mechanism 64 is disposed between the cutting unit 36 and the table 32.

As shown in FIGS. 5 to 7, the table locking release mechanism 64 includes an operation knob 72 movably disposed on the table 32, a locking member 74 coupled to the operation button 72, and a fitting member disposed on the cutting unit 36. 76, wherein the operating button 72 is operable to engage the locking member 74 with the mating member 76 to cause the cutting machine to be in the table-cut mode; when the locking member 74 is disengaged from the mating member 76, the table cutting mode is converted to the bevel mode .

In the present embodiment, the operating button 72 is slidably disposed on the table 32 by the mounting seat 78. The mount 78 is fixed to the front side of the table 32 by screws and is symmetrically disposed with respect to the first cutting groove 52 (as shown in Fig. 1). The mounting seat 78 is provided with a sliding slot (not labeled) for sliding the operating button 72, and a spring is provided between the operating button 72 and the mounting seat 78, which spring keeps the operating button 72 at all times so that the locking member 74 cooperates The locking position of the piece 76 is matched.

The fitting member 76 is a card slot 76 provided on the fixed shield 35.

One end of the locking member 74 is locked on the operating button 72, and the other end is pivotally connected to the table 32 via a pin 80, and a hook 82 is formed on the locking slot 76. Under the action of the spring, the hook 82 will always stop the slot 76 (as shown in Figure 5), thereby causing the cutting unit 36 to be fixed relative to the table 32 or base 30. And when the operating button 72 is pushed away from the table 32, At this time, the operation button 72 will drive the one end of the locking member 74 to move, and rotate around the axis of the pin 80, so that the hook 82 is disengaged from the engagement with the slot 76 (as shown in FIG. 6), and the cutting unit 36 can be upward. Pivot, thereby converting the cutter from the table-cut mode to the bevel mode.

In order to operate the cutting machine safely in the table cutting mode, a boring tool 83 is also provided on the mounting base 78. When the cutter is in the table cutting mode, the saw blade 39 enters the second working area 61 (see Fig. 1), and the file 83 is aligned with the saw blade 39.

Of course, there are many specific implementations of the table locking release mechanism 64, such as placing a table locking release mechanism between the cutting unit and the support frame. The table locking release mechanism 64 includes a locking pin disposed on one of the cutting unit 36 and the support frame 34 and a locking hole disposed on the other, the locking pin mating with the locking hole, the cutting machine being in the table cutting mode. When the locking pin is disengaged from the locking hole, the table cutting mode is switched to the chamfer mode.

As shown in Fig. 8, in order to make the saw blade 39 in the table cutting mode, the saw blade 39 is perpendicular to the second working surface 58, the cutting machine is also provided with a positioning mechanism 84.

In the present embodiment, the positioning mechanism 84 is disposed between the cutting unit 36 and the base 30.

The positioning mechanism 84 includes a positioning hole 86 provided on the motor housing 37 and a positioning pin 88 disposed on the guard rail 46. As shown in Fig. 9, the cutting machine is in the table cutting mode, the positioning hole 86 is engaged with the positioning pin 88, the saw blade 39 is perpendicular to the second working surface 58, and the saw blade 39 is perpendicular to the abutment surface 48 of the guard rail 46.

Of course, in the undercut mode, the positioning hole 86 and the positioning pin 88 can be precisely matched, and the guard rail 46 is further provided with an adjusting structure 89 for adjusting the relative position of the positioning pin 88.

Referring again to Figures 8 and 9, a first switch 90 is provided on the operating handle 41 for controlling the motor in the bevel mode. According to the operating habit of the bevel mode, the first switch 90 is not self-locking. turn off. The first switch 90 is operated to control the motor rotation; and when the first switch 90 is released, the motor stops rotating.

A switch box 92 and a control panel 94 are also provided on the fixed shield 35. The switch box 92 is mainly used to cover electronic components. A second switch 96 is provided on the control panel 94 for controlling the motor in the table mode. Further, on the control panel 94, there is provided a display lamp 98 which can indicate whether the cutting machine is in the table cutting mode and an overload protector 100 which is powered off in the event of an overload. The principle of the display lamp 98 that emits light due to energization and the overload protector 100 that is powered off in the event of an overload is well known to those skilled in the art and will not be described again.

According to the operating habit of the cutting mode, the second switch 96 is a self-locking switch, that is, the second switch 96 is pressed, the motor can be controlled to keep rotating; and when the second switch 96 is pressed again, the motor is stopped. Turn.

As shown in Figures 10 through 12, the cutter is also provided with a safety switch 102 in order to be able to safely operate the cutter and the differences in different modes of operation.

As shown in FIG. 10, the safety switch 102 has two states. In the first state, the cutting machine is in the chamfer mode, the safety switch 102 allows the first switch 90 to control the motor and the second switch 96 to control the motor; In the state, the cutter is in the table-cut mode, and the safety switch 102 allows the second switch 96 to control the motor to limit the first switch 90 to control the motor.

As shown in Fig. 11, the control safety switch 102 is in the first state or the second state and can be implemented in a wide variety of electronic and mechanical manners. In the present embodiment, the safety switch 102 is fixedly disposed on the fixed shield 35. The safety switch 102 will rotate with the cutting unit 36 about the pivot axis 40. The safety switch 102 has a contact 106 on which a projection 104 is disposed. The contacts 106 will rotate with the cutting unit 36 about the pivot axis 40. Contact 106 will be available The selected contact and disengagement with the projection 104 causes the safety switch 102 to transition between the first state and the second state.

When the cutting machine is in the chamfering mode, the cutting unit 36 pivots about the pivot axis 40 at the upper limit position and the lower limit position, and the pivoting angle ranges from about 40 degrees to about 90 degrees, within which the safety switch 102 is not caused. The contact 106 is in contact with the projection 104. At this time, the safety switch 102 is in the first state, the operator operates the first switch 90 to control the motor, and the second switch 96 does not control the motor.

As shown in Figure 12, the cutter is in the table cut mode. At this time, since the cutting unit 36 is moved downward beyond the lower limit position about the pivot axis 40, the contact 106 of the safety switch 102 is brought into contact with the projection 104. At this time, the safety switch 102 is in the second state, the operator can operate the second switch 96 to control the motor, and the first switch 90 does not control the motor.

In the preferred embodiment, in order to improve the operator's comfort in consideration of the rotation direction of the saw blade 39, the advancement direction of the workpiece is from the rear side to the front side in the table cutting mode. Of course, the direction of advancement of the workpiece can also be used from front to back.

In order to make the cutting machine in the table cutting mode, the workpiece is not driven to move in the direction of the table 32 due to the rotation of the saw blade 39. The cutting machine is further provided with a workpiece pressing mechanism 114, as shown in FIG. The workpiece pressing mechanism 114 prevents the workpiece from moving in the direction of the table 32 but does not hinder the pushing of the workpiece in the direction of the second cutting groove 52.

As shown in Fig. 13, the workpiece pressing mechanism 114 includes a pressure plate 116 movably disposed on the table 32 and a stopper mechanism 118 for restraining the pressure plate 116 at a predetermined position.

As shown in FIG. 14, in the preferred embodiment, the pressure plate 116 is rotatably coupled to the table 32 via a link mechanism, and an elastic member 120 is disposed between the pressure plate 116 and the table 32. Element 120 is used to maintain platen 116 in a position proximate to second working surface 58 at all times.

The pressure plate 116 is pivotally coupled to the link 122 and the link 122 is pivotally coupled to the table 32. The pressure plate 116, the connecting rod 122 and the table 32 constitute a parallel four-bar linkage. Thereby the platen 116 can be moved parallel to the table 32 by the four links 122.

In the preferred embodiment, in order to make the workpiece pressing mechanism 114 more stable, the pressure plate 116 is pivotally coupled to the table 32 by four links 122.

A resilient member 120 is disposed between the link 122 and the table 32 such that the platen 116 remains in a position proximate to the second working surface 58 at all times. In the preferred embodiment, the resilient member 120 is configured as a torsion spring. Of course, the elastic member 120 can also be provided as other elastic members such as a tension spring.

The pressure plate 116 is provided with a groove 124 through which the saw blade 39 passes, and the pressure plate 116 further has a contact surface 126 which is in contact with the workpiece, and the pressure plate 116 extends longitudinally in the direction in which the workpiece is advanced. There is one end 128 that is upwardly lifted in the longitudinal extension direction and the other end 130 opposite thereto. One end 128 is arranged to be tilted upwards to facilitate the pushing of the workpiece.

As shown in FIGS. 15 and 16, the limiting mechanism 118 includes a limiting member 132 that cooperates with the pressure plate 116, a driving mechanism 134 that drives the limiting member 132, and a driving member 136 that fixes the driving member 136 relative to the table. The fixing device 138, wherein the driving member 136 is movably disposed on the table, and the limiting member 132 is driven by the driving mechanism 134 to cooperate with the pressing plate 116.

In the preferred embodiment, the fixing device 138 adopts a bolt connection structure. To improve the operation comfort, one end of the bolt is provided with a convenient knob 140 for convenient operation. In addition, the limiting mechanism 118 may directly control the preset position of the pressure plate 116 by using a screw or control the preset position of the pressure plate 116 by a single cam mechanism.

In the preferred embodiment, the driving member 136 is provided with an eccentric pin 142. Drive mechanism 134 includes A first rod 144 coupled to the eccentric pin 142 and a second rod 147 pivotally coupled to the first rod 144 by a coupling pin 146 are used to secure the slide bar 148 disposed on the table. The sliding bar 148 is provided with a sliding slot 150. The limiting member 132 is slidably disposed in the sliding slot 150, and the limiting member 132 is coupled to the second rod 147, so that the driving member 136 can be operatively disposed to the first rod 144. The second rod 147 is moved to drive the stopper 132 to slide along the slide bar 148. The extending direction of the chute 150 is parallel to the extending direction of the second cutting groove 60, so the driving member 136 causes the limiting member 132 to move along the extending direction of the second cutting groove 60.

In the preferred embodiment, the limiting members 132 are disposed in two, and the two limiting members 132 are connected by the connecting rod 156. Accordingly, the sliding rods 148 that cooperate with the limiting members 132 are also disposed in two.

As shown in Fig. 17, the driving member 136 is rotatably coupled to the table 32. The driving member 136 is further provided with a guiding pin 152 (as shown in FIG. 16). Correspondingly, the working table 32 is provided with a guiding groove 154 which cooperates with the guiding pin 152. When the drive member 136 is operated, the drive member 136 moves along the guide groove 154 under the guidance of the guide pin 152.

The cutter is also provided with indicating means 162 for indicating that the limiting mechanism 118 can limit the upper limit position of the pressure plate 116. The indicating device 162 includes a scale 164 disposed outside the guide slot 154 and a pointer 166 disposed on the driver member 136. When the drive member 136 is rotated, the scale 164 corresponding to the pointer 166, that is, the limit mechanism 118, can limit the height of the pressure plate 116.

Referring to FIG. 18 and FIG. 19, the limiting member 132 is provided with a limiting surface 158. The pressing plate 116 is provided with a limiting block 160. The limiting surface 158 cooperates with the limiting block 160 to limit the pressing plate 116 to a predetermined position. .

The workpiece pressing mechanism 114 is operated as follows: first, the fixing knob 140 is loosened, and then the driving member 136 is rotated. At this time, the driving member 136 can be rotated by the pointer 166 and the corresponding scale 164. To the desired position; during the rotation of the driving member 136, the driving member 136 drives the driving mechanism 134 to urge the limiting member 132 to move along the extending direction of the second cutting groove 60. The workpiece is placed in the second working area 61, and is pushed from the rear of the cutting machine, that is, the end 128 that is lifted from the pressing plate 116 is pushed in. Under the pushing of the workpiece, the pressing plate 116 overcomes the force of the elastic member 120 toward the working table. The direction of motion of 32 is maintained until the stop surface 158 of the stop member 132 engages the stop block 160 on the pressure plate 116 such that the pressure plate 116 is constrained to a predetermined position and the fixed knob 140 is finally tightened.

As shown in Figures 20 and 21, when the cutting machine is in the table-cut mode, the main working surface 58 of the base 30 is also provided with a main guide attachment 168 for guiding the workpiece.

The main guide attachment 168 has a base 170, a locking mechanism 172 that locks the base 170 to the base 30, and a pointer (not shown) having a stop surface 174 that stops the workpiece. A scale (not shown) is provided on the base 30 in a direction perpendicular to the second cutting groove 52. When the table cutting operation is performed, the main guide attachment 168 is first moved to the corresponding scale indicated by the pointer according to the predetermined size to be cut, and then the base 170 is locked to the base 30 by the locking mechanism 172. In operation, the workpiece is abutted against the stop surface 174 of the base 170, so that the workpiece can be easily pushed and the cutting can be performed accurately.

To facilitate advancement of the workpiece into the second working area 61, the cutting machine is also provided with a workpiece pusher 176 having a body 178 and a pusher 180 that can be used to push the workpiece. The body 178 can be operatively sleeved over the base 170 of the main guide 168. When the workpiece is advanced, the body 178 of the workpiece pushing member 176 is sleeved on the base 170 of the main guide 168, so that the pushing portion 180 abuts against the workpiece, so that the operating body 178 can advance the workpiece along the main guide 168. A second work area 61 is launched.

The cutting machine also includes an auxiliary guide attachment 182 that includes a body 184 that can be placed over the second work surface 58 and a locking mechanism 186 that locks the body 184 to the base 30.

As shown in Figures 20 through 22, the body 184 has a guide surface 188 for guiding the workpiece, and the height of the body 184 is less than the minimum distance between the platen 116 and the second work surface. When the table cutting operation is performed, the main guide 170 is first moved to the corresponding position according to the predetermined size to be cut, and then the base 170 is locked on the base 30 by the locking mechanism 172; then the cut workpiece is placed, and the workpiece is moved according to the cutting workpiece. The guide attachment 182 is such that one side of the workpiece being cut abuts against the stop surface 174 of the main guide attachment 168; the other side abuts against the guide surface 188 of the auxiliary guide attachment; finally, the auxiliary guide attachment is passed through the locking mechanism 186 The 182 is locked to the base 30. Thus, in operation, the auxiliary guiding attachment 182 can prevent the workpiece being swayed and affect the cutting accuracy; at the same time, the auxiliary guiding attachment 182 also prevents the workpiece being moved from moving toward the operator, thereby causing injury to the operator.

The above-described embodiments are merely the most preferred embodiments provided by those skilled in the art in understanding the present invention. This creation is not limited to the specific embodiments described above. Any improvement that is easily conceivable by those skilled in the art is within the inventive concept of the present invention.

30‧‧‧Base

31‧‧‧Flange

32‧‧‧Workbench

33‧‧‧Boss

34‧‧‧Support frame

35‧‧‧Fixed shield

36‧‧‧Cutting unit

37‧‧‧Motor housing

38‧‧‧ pivot shaft

39‧‧‧Saw blade

40‧‧‧ axis of the pivot shaft

41‧‧‧Operation handle

42‧‧‧ Tilt locking mechanism

43‧‧‧ Activity shield

44‧‧‧Base support surface

45‧‧‧first axis

46‧‧‧ guardrail

48‧‧‧Abutment

50‧‧‧First working surface

52‧‧‧First cutting slot

53‧‧‧First work area

54‧‧‧Bevel locking mechanism

56‧‧‧Locking screws

58‧‧‧Second work surface

60‧‧‧Second cutting slot

61‧‧‧Second work area

62‧‧‧Bevel lock release mechanism

64‧‧‧Taiwan locking release mechanism

65‧‧‧ round hole

66‧‧‧stop sales

67‧‧‧ end face

68‧‧‧ Groove

69‧‧‧ end face

70‧‧‧Adjustment screw

72‧‧‧ operation button

74‧‧‧Locking parts

76‧‧‧Parts

78‧‧‧ Mounting

80‧‧‧ pin

82‧‧‧ hook

83‧‧‧劈

84‧‧‧ Positioning mechanism

86‧‧‧Positioning holes

88‧‧‧Locating pin

89‧‧‧Adjustment structure

90‧‧‧First switch

92‧‧‧Switch box

94‧‧‧Control panel

96‧‧‧Second switch

98‧‧‧ display lights

100‧‧‧Overload protector

102‧‧‧Safety switch

104‧‧‧ bumps

106‧‧‧Contacts

112‧‧‧ Positioning Block

114‧‧‧Working table pressing mechanism

116‧‧‧ pressure plate

118‧‧‧Limited institutions

120‧‧‧Flexible components

122‧‧‧ linkage

124‧‧‧ slots

126‧‧‧Contact surface

128‧‧‧End

130‧‧‧The other end

132‧‧‧Limited parts

134‧‧‧ drive mechanism

136‧‧‧ drive parts

138‧‧‧Fixed devices

140‧‧‧Fixed knob

142‧‧‧Eccentric pin

144‧‧‧first shot

146‧‧‧ Connection pin

147‧‧‧second pole

148‧‧‧Slider

150‧‧ ‧ chute

152‧‧‧ Guide pin

154‧‧‧ guiding slot

156‧‧‧ Connecting rod

158‧‧‧limit surface

160‧‧‧Limited blocks

162‧‧‧ indicating device

164‧‧‧scale

166‧‧‧ pointer

168‧‧‧Leading accessories

170‧‧‧ base

172‧‧‧Locking mechanism

174‧‧‧ stop surface

176‧‧‧Workpiece pusher

178‧‧‧Ontology

180‧‧‧Promotion Department

182‧‧‧Auxiliary Guide Accessories

184‧‧‧ Subject

186‧‧‧Locking mechanism

188‧‧‧ guiding surface

300‧‧‧Cutting machine

Figure 1 is a perspective view of a cutting machine in the present embodiment.

Fig. 2 is a partial perspective view of the cutting machine in the present embodiment.

Figure 3 is a schematic view of the cutting machine in the present embodiment.

Fig. 4 is an exploded perspective view showing the bevel locking release mechanism of the cutting machine in the present embodiment.

Figure 5 is a cross-sectional view showing the undercut locking release mechanism of the cutting machine in the present embodiment. The cutting unit is locked.

Figure 6 is a cross-sectional view showing the undercut locking release mechanism of the cutting machine in the present embodiment, in which case the cutting unit is in an unlocked state.

Fig. 7 is a schematic view showing the undercut locking release mechanism of the cutting machine in the present embodiment.

Figure 8 is a perspective view of the cutting machine in the present embodiment.

Figure 9 is a perspective view of the cutting machine in the present embodiment. At this time, the cutting machine is in the table cutting mode.

Figure 10 is a circuit schematic diagram of the safety switch of the cutting machine in the present embodiment.

Figure 11 is a schematic view of the safety switch of the cutting machine in the present embodiment, in which the safety switch is in the first state.

Figure 12 is a schematic view of the safety switch of the cutting machine in the present embodiment, in which the safety switch is in the second state.

Figure 13 is a perspective view showing the workpiece pressing mechanism of the cutting machine in the present embodiment.

Figure 14 is a perspective view showing the platen of the cutting machine in the present embodiment.

Figure 15 is a perspective view showing the driving mechanism of the cutting machine in the present embodiment.

Figure 16 is a perspective view showing the driving mechanism of the cutting machine in the present embodiment.

Figure 17 is a perspective view of the cutting machine in the present embodiment.

Figure 18 is a schematic view of the workpiece pressing mechanism of the cutting machine in the present embodiment.

Figure 19 is a schematic view of the workpiece pressing mechanism of the cutting machine in the present embodiment.

Figure 20 is a perspective view of the cutting machine in the present embodiment, in which the cutting machine is in the table cutting mode.

Figure 21 is a perspective view of the cutting machine in the present embodiment, in which the cutting machine is in the table mode.

Figure 22 is a schematic view of a cutting machine in the present embodiment.

30‧‧‧Base

32‧‧‧Workbench

34‧‧‧Support frame

35‧‧‧Fixed shield

36‧‧‧Cutting unit

37‧‧‧Motor housing

38‧‧‧ pivot shaft

39‧‧‧Saw blade

40‧‧‧ axis of the pivot shaft

41‧‧‧Operation handle

43‧‧‧ Activity shield

44‧‧‧Base support surface

45‧‧‧first axis

46‧‧‧ guardrail

48‧‧‧Abutment

50‧‧‧First working surface

52‧‧‧First cutting slot

53‧‧‧First work area

54‧‧‧Bevel locking mechanism

56‧‧‧Locking screws

58‧‧‧Second work surface

61‧‧‧Second work area

62‧‧‧Bevel lock release mechanism

64‧‧‧Taiwan locking release mechanism

300‧‧‧Cutting machine

Claims (27)

A cutting machine comprises: a base; a worktable supported on the base, the worktable has a first working surface supporting the workpiece; a support frame connected to the worktable; and a cutting unit rotatably connected The cutting unit includes a fixed shroud rotatably coupled to the support frame, a motor housing coupled to the fixed shroud, a saw blade, and is received in the motor housing to drive the saw blade to surround the a motor rotating on the first axis; a guard rail connected to the base, the guard rail having an abutting surface against the workpiece, the abutting surface and the first working surface forming a first working area; wherein the guarding surface Having a second working surface supporting the workpiece, the cutting machine has a second working area formed between the second working surface and the worktable, the cutting machine has a chamfering mode and a cutting mode, the inclined In the cutting mode, the saw blade is at least partially located in the first working area; in the table cutting mode, the saw blade is at least partially located in the second working area. The cutting machine of claim 1, wherein the cutting machine comprises a cutting and locking release mechanism operable to convert the cutting mode into the chamfering mode. The cutting machine of claim 2, wherein the table locking release mechanism is disposed between the cutting unit and the table. The cutting machine of claim 3, wherein the table locking release mechanism comprises an operating button movably disposed on the table, a locking member coupled to the operating button, and a locking member disposed on the cutting unit a fitting member, wherein the operating button is operable to engage the locking member with the fitting member to cause the cutting machine to be in the table cutting mode; the locking member and the fitting member are disengaged for The desk cutting mode is converted to the chamfer mode. The cutting machine of claim 4, wherein the fitting member is a card slot disposed on the fixed cover, and the locking member is provided with a hook for engaging the card slot. The cutting machine of claim 4, wherein the operating button is slidably disposed on the table, and a spring is disposed between the operating button and the table, the spring keeping the operating button in the orientation The position of the workbench. The cutting machine of claim 2, wherein the table locking release mechanism is disposed between the cutting unit and the support frame. The cutting machine of claim 7, wherein the table locking release mechanism comprises a locking pin disposed on one of the cutting unit and the support frame and a locking hole disposed on the other one, the locking pin and The locking hole is mated and the cutter is in the table cutting mode. The cutting machine of claim 2, wherein the cutting machine comprises a bevel lock release mechanism operable to convert the bevel mode into the table cut mode. The cutting machine of claim 9, wherein the bevel lock release mechanism comprises a stopper movably disposed on one of the support frame and the cutting unit and a stopper disposed on the other one, The stop member and the stop member are disengaged for converting the chamfering mode into the table cutting mode. The cutting machine of claim 10, wherein the stopper is a stopper pin movably disposed on the support frame, the stopper being a groove fixedly disposed on the fixed shield, the stopper pin Contained in the groove, the cutter is in a chamfering mode. The cutting machine of claim 11, wherein the support frame is further provided with an adjusting screw for engaging with the stopping pin. The cutting machine of claim 10, wherein the stopper is a rotatable rotating block disposed on the support frame, the stop member is a boss fixedly disposed on the fixed cover, When the rotating block is mated with the boss, the cutting machine is in the chamfering mode and the cutting unit is in a lower limit position. The cutting machine of claim 2, wherein the cutting machine comprises a first switch for controlling the operation of the motor in the bevel mode; and a second switch for controlling the operation of the motor in the table cutting mode, The cutting machine further includes a safety switch having two states, in the first state, the cutting machine is in a chamfering mode, the safety switch allowing the first switch to control the motor to limit the second switch to control the motor; The cutter is in a table-cut mode that allows the second switch to control the motor to limit the first switch to control the motor. The cutting machine of claim 14, wherein the support frame is provided with a protrusion, the safety switch has a contact, and the protrusion is selectively engageable with the contact for the safety switch at the first Transition between state and second state. The cutting machine of claim 1, wherein a positioning mechanism is disposed between the cutting unit and the base, and in the table cutting mode, the positioning mechanism is configured to ensure that the saw blade is perpendicular to the second working surface. . The cutting machine of claim 16, wherein the positioning mechanism comprises a positioning hole disposed on the motor housing and a positioning pin disposed on the guard rail, the positioning hole and the positioning pin cooperate, the saw The sheet is perpendicular to the second working surface. The cutting machine of claim 1, wherein the cutting machine further comprises a workpiece pressing mechanism, the workpiece pressing mechanism comprising a pressing plate movably disposed on the working table and limiting the pressing plate to a predetermined position a limit mechanism. The cutting machine of claim 18, wherein the pressure plate is rotatably coupled to the table by a parallel four-bar linkage mechanism, and an elastic member is disposed between the pressure plate and the table. The element maintains the pressure plate at a position facing the second working surface. The cutting machine of claim 18, wherein the limiting mechanism comprises a limiting member matched with the pressure plate, a driving mechanism for driving the limiting member, and a driving member for fixing the driving member relative to the working table. A fixing device, wherein the driving member is movably disposed on the working table, and the driving member drives the limiting member to cooperate with the pressure plate. The cutting machine of claim 20, wherein the driving member is rotatably coupled to the table and is provided with an eccentric pin, the driving mechanism comprising a first rod connected to the eccentric pin and the first A second rod pivotally coupled to the rod, the slide rod disposed on the table, wherein the drive member is operable to move the first rod and the second rod to drive the limit member to slide along the slide rod. The cutting machine of claim 20, wherein the limiting member is provided with a limiting surface, and the pressing plate is provided with a limiting block, and the limiting surface cooperates with the limiting block to limit the pressing plate to a predetermined location. The cutting machine of claim 1, wherein the cutting machine further comprises an auxiliary guiding attachment, the auxiliary guiding attachment comprising a main body that can be placed on the second working surface and the main body being locked on the base A locking mechanism, wherein the main body has a guiding surface for guiding the workpiece, and the height of the main body is smaller than a minimum distance between the pressing plate and the second working surface. The cutting machine of claim 1, wherein the first and second working faces are located on the same side of the first axis. The cutting machine of claim 1, wherein the first and second working faces are parallel. The cutting machine of claim 25, wherein the first working surface and the second working surface The distance between them is less than the height of the base. The cutting machine of claim 25, wherein a distance between the first working surface and the second working surface is smaller than a radius of the saw blade.