WO2010045837A1

WO2010045837A1 - Cutting machine

Info

Publication number: WO2010045837A1
Application number: PCT/CN2009/074270
Authority: WO
Inventors: 布朗·沃伦; 索默·哈利; 格哈德·格雷厄姆
Original assignee: 苏州宝时得电动工具有限公司
Priority date: 2008-10-24
Filing date: 2009-09-28
Publication date: 2010-04-29

Abstract

A cutting machine includes a pedestal (1) and a saw mechanism (3) pivotably engaged with the pedestal (1). Wherein the saw mechanism (3) includes a motor positioned above the pedestal (1), a saw blade (31) rotatably driven by the motor and a fixed protecting cover (34) which covers at least a portion of the saw blade (31). A first supporting area (12) and a second supporting area (43,43a,43b) are engaged with the pedestal (1) such that it is possible to realize a 90 degree vertical cutting and a left-and-right oblique cutting due to the fact that the workpiece could be located at the first supporting area (12) or the second supporting area (43,43a,43b) without changing or adjusting any structure. Accordingly, the whole structure of the cutting machine is greatly simplified, the product cost is reduced and the operation is easy and convenient.

Description

Cutting machine

The present invention relates to a cutting machine, and more particularly to a cutting machine that can realize bevel cutting.

Background technique

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. The cutting machine generally comprises a base, a sawing mechanism with a motor and a saw blade located above the base, and a guardrail disposed on the base for positioning the workpiece, wherein the base is provided with a horizontally rotating circular rotation with a cutting groove at a substantially intermediate position The table, the saw mechanism is pivotally coupled to the rear side of the rotary table by a support arm. The guard rail is a positioning plate which is composed of a reference flat portion at both ends and an arc-shaped connecting portion whose middle portion is offset from the cutting groove. In use, the rotary table is operated to rotate, so that the rotary table can drive the saw mechanism and the saw blade to the desired angle; then the workpiece to be cut is placed on the rotary table and is closely attached to the two ends of the positioning plate. On the reference plane portion; finally, the saw mechanism is pressed down, and the saw blade is then lowered to cut the workpiece to be cut, so that the beveling purpose of the workpiece to be cut can be achieved.

However, it is found in the actual operation that since the saw mechanism is pivotally disposed on the table through the support arm, the structure is relatively complicated, and the base is provided with a rotary table having a rotating structure, so that the entire cutting machine has more components. The structure is more complicated, which increases the cost of production. At the same time, since the rotating table is equipped with heavier components such as a saw mechanism, and these components also need to rotate together with the rotating table, it is more difficult and inconvenient to rotate. It also increases the complexity of maintenance and repair.

Invention content

The technical problem to be solved by the invention is to provide a cutting machine with a simple structure and convenient operation. The technical solution adopted by the present invention to solve the technical problem thereof is as follows: A cutting machine comprising: a working table, a cutting groove, the cutting groove having a center line; a sawing mechanism rotatably connected to the table by a pivot The saw mechanism includes a motor located above the workbench, a saw blade rotationally driven by the motor, and a fixed shroud covering at least a portion of the saw blade, the saw blade portion passing through the cutting slot; a first support area including a first support surface disposed on the table to support the workpiece in a horizontal direction, and an abutment surface disposed perpendicular to the first support surface, wherein the abutment surface and the center The wire forms an angle of 90 degrees; the cutting machine is provided with a second support area, the second support The area includes a second support surface disposed on the table to support the workpiece in a horizontal direction, and at least one abutment surface disposed perpendicular to the second support surface, wherein the abutment surface forms less than the center line

An angle of 90 degrees, the second support surface being parallel to the first support surface and lower than the first support surface.

The abutting surface includes a first abutting surface and a second abutting surface respectively disposed on two sides of the cutting groove, wherein the first and second abutting faces form a first and second with the center line less than 90 degrees Specific angle.

The first and second supporting surfaces are directly formed on the working table; the first and second abutting surfaces respectively extend perpendicularly from the second supporting surface to the first supporting surface.

The second supporting surface is directly formed on the worktable; the cutting machine further includes first and second positioning blocks mounted on the working table, wherein the first and second abutting surfaces are directly formed In the first and second positioning blocks, the first supporting surface is directly formed on the upper surfaces of the first and second positioning blocks.

The workbench is provided with two baffles respectively located on opposite sides of the cutting groove, and the baffle is used to cover part of the saw blade.

A dust collecting passage is formed between the two baffles, and the saw blade passes through the dust collecting passage. a hollow dust box is disposed between the fixed shroud and the work table and adjacent to the pivot shaft, the dust box has an inlet for collecting dust, the inlet and the dust collecting passage Connected.

The baffle may be partially received in the inlet.

A filter device is disposed on the dust box.

A receiving cavity is disposed below the cutting groove, and at least a portion of the saw blade is received in the receiving cavity.

The receiving cavity is formed by a cover fixedly disposed below the workbench.

The receiving cavity is connected to the dust collecting passage, and the chips generated when the saw blade is cut are discharged into the dust collecting box through the receiving cavity and the dust collecting passage.

The pivot has an axis that is coplanar or parallel to the first support surface and below the first support surface.

The saw blade has a saw blade plane, and a handle is disposed on the fixed shield, the handle being symmetrically disposed with respect to the plane of the saw blade.

The saw mechanism is moveable between a sawing position and a carrying position in which the saw mechanism pivots about the pivot; in the carrying position, the saw mechanism is operative relative to the work Taiwan Fixed, and the saw blade passes through the cutting slot.

The saw blade is mounted on a saw blade shaft, the saw blade shaft having a saw blade axis parallel to the first support surface; the handle having a grip portion for an operator to grip, the moving Position, at least a portion of the grip is lower than the saw blade axis.

Compared with the prior art, the beneficial effects of the invention: the first and second support regions are arranged on the worktable, so that no need to change or adjust any structure, but only the workpiece is placed on the first support region or the second support In the area, 90 degree vertical cutting and left and right beveling can be achieved. In this way, the overall structure of the cutting machine is greatly reduced, the manufacturing cost is reduced, and the operation is easy and convenient.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a first embodiment of a cutting machine of the present invention.

Figure 2 is an exploded perspective view of the first embodiment of the cutting machine of the present invention.

Figure 3 is a perspective view of the first embodiment of the cutting machine of the present invention, achieving a left 45 degree chamfer.

Figure 4 is a perspective view of the first embodiment of the cutting machine of the present invention, achieving a right 45 degree chamfer.

Figure 5 is a perspective view of the first embodiment of the cutting machine of the present invention, achieving a left 45 degree chamfer.

Figure 6 is still another perspective view of the first embodiment of the cutting machine of the present invention.

Figure 7 is a left side elevational view of the first embodiment of the cutting machine of the present invention, in a rest position.

Figure 8 is a left side elevational view of the first embodiment of the cutting machine of the present invention, in a moving position.

Figure 9 is a perspective view of the first embodiment of the cutting machine of the present invention, in which it is in the moving position.

Figure 10 is a partial perspective view of the first embodiment of the cutting machine of the present invention with a portion of the table removed. Figure 11 is a perspective view of a second embodiment of the cutting machine of the present invention.

Figure 12 is a perspective view of a third embodiment of the cutting machine of the present invention, with no saw blade attached.

among them

1 . Workbench 1 1 . Cutting groove 1 1 1 . Center line

12. First support surface 13. Containing space 14. Abutment surface

15. Baffle 16. Clearance 17. Cavity

1 8. Dust collecting passage 19. Lower bottom 2. Pivot

21 . Axis 3. Saw mechanism 3 1 . Saw blade

32. Saw blade axis 33. Motor housing 34. Fixed shield

35. Movable shield 36. Handle 361 . Grip

37. Cover 41, 41 a, 41 b first abutment 42, 42a, 42b second abutment surface

43 , 43 a, 43b second support surface 44a. first positioning block 45 a. second positioning block 5. Dust box 51. Filter 52. Entrance

6. Auxiliary positioning device 61. Fixing seat 62. Supporting device

63. Stop face 200. Workpiece 300. Coronal wood

301. First side 302. Second side 303. End face

detailed description

The invention will now be further described with reference to the drawings and preferred embodiments.

Referring to Figures 1 through 10, a first preferred embodiment of the present invention is shown. As shown in Figures 1 and 2, the cutting machine comprises a table 1, a saw mechanism 3 mated with the table 1, wherein the saw mechanism 3 is directly rotatably coupled to the table 1 by a pivot 2, thereby enabling the present invention The cutter structure is single, compact and costly.

The saw mechanism 3 includes a saw blade 31, a motor (not shown) that drives the saw blade 31 to rotate, and a fixed shroud 34 and a movable shroud 35, and a handle 36, wherein the saw blade 31 is mounted on the saw blade shaft (not shown) Above, the saw blade shaft has a saw blade axis 32; the motor is rotatably disposed in the motor housing 33 for driving the saw blade 31 to rotate about the saw blade axis 32; the handle 36 is fixedly disposed on the fixed shield 34 On the handle 36, a switch (not labeled) for starting and closing the motor, and a safety switch are provided. Of course, the handle 36 can be simultaneously adapted to the left and right hand operations, and two switches (not labeled) are provided on the handle for starting. And closing the motor; the fixed shield 34 is generally fixed to the motor housing 33 for covering part of the saw blade 31; the movable shield 35 is hinged to the fixed shield 34 for covering part of the saw blade 31, and the movable guard The cover 35 is rotatable relative to the fixed shroud 34 to expose the saw blade 31 for cutting the workpiece. Operating the handle 36 pivots the saw mechanism 3 to perform the cutting work. The fixed shield 34 is usually made of a metal material such as aluminum or cast iron to increase rigidity.

The table 1 is provided with a cutting groove 11 extending in the longitudinal direction through which the saw blade 31 passes. The cutting groove 11 has a center line 111 and is disposed perpendicular to the pivot 2. A substantially semicircular receiving space 13 is provided on the rear side of the table 1. The workbench 1 can be made of a non-metallic material, such as an abrasion-resistant plastic, etc. The use of non-metallic materials such as plastic can reduce the weight of the entire cutter, facilitate handling, and is relatively low in cost.

The saw mechanism 3 is rotatable about the axis 21 of the pivot 2 between the sawing position and the rest position, thereby effecting the cutting of the workpiece. A torsion spring (not shown) is disposed on the pivot 2, and in the sawing position, the sawing mechanism 3 and the compression torsion spring are rotated so that the saw mechanism 3 rotates relative to the table 1 about the axis 21 to realize cutting, as shown in FIG. Figure 4 shows; after the cutting is completed, the saw mechanism 3 is reset to the rest position by the torsion spring (as shown in Figure 7). For ease of handling, the saw mechanism 3 can also be rotated about the axis 21 to the transport position (as shown in Figures 8 and 9), in which the saw mechanism 3 is locked by a locking mechanism (not shown). It is fixed to the table 1 at which the saw blade 3 1 passes through the cutting groove 11. The locking mechanism is well known to those skilled in the art, and the saw mechanism 3 can be bound to the table 1 by a strap; or the saw mechanism 3 can be fixed to the table 1 by the cooperation of pins and holes.

As shown in Fig. 1, the table 1 is provided with a first support surface 12 for supporting the workpiece in the horizontal direction, and a guard rail assembly for abutting the workpiece in the vertical direction. The blade axis axis 32 is parallel to the first support surface 12. In the present embodiment, the first support surface 12 is integrally formed with the table. The guardrail assembly may be integrally formed with the table 1, or may be fixedly disposed on the table 1. In this embodiment, the guardrail assembly is a part of the worktable 1 and is formed by a vertical extension of the first support surface 12, the guard rail assembly having a symmetrical arrangement and abutting surface 14 for abutting the workpiece, two A gap 16 is provided between the abutment faces 14 to provide a saw blade 3 1 therethrough. Since the saw mechanism 3 cannot swing obliquely left and right with respect to the vertical plane, the gap 16 is narrower so that it can better abut against the workpiece.

The first supporting surface 12 and the abutting surface 14 form a first supporting area, wherein the abutting surface 14 forms an angle of 90 degrees with the center line 11 of the cutting groove 1 1 , so the first supporting area is used for Supports workpieces that require 90 degree cutting.

The specific operation of the 90 degree cutting will be described below with reference to FIG. When cutting, the workpiece 200 to be cut is placed on the first support surface 12 and abuts against the abutment surface 14, and then the saw mechanism 3 is pressed downward to rotate the saw mechanism 3 about the axis 21, and the saw blade 3 1 follows The cutting of the cut workpiece 200 is lowered, so that a 90 degree vertical cut of the workpiece 200 to be cut can be achieved.

In order to achieve the beveling, the cutter is further provided with a second support region comprising a second support surface 43 disposed on the table 1 for supporting the workpiece in the horizontal direction, and at least one perpendicular to the second The abutment surface provided by the support surface 43 forms an angle of less than 90 degrees with the center line 11 of the cutting groove 1 1 , so the second support area is used to support the workpiece to be chamfered.

In the present embodiment, the second support surface 43 is formed directly on the table 1. And the second supporting surface 43 is parallel to the first supporting surface 12 but not coplanar, the two have different heights, forming a step, and the second supporting surface 43 is lower than the first supporting surface 12. Therefore, even if a wider workpiece is placed on the first support surface 12, it is not affected by the second support surface 43.

In the present embodiment, the abutment surface includes a first abutment surface 41 and a second abutment surface 42 which are respectively disposed on both sides of the cutting groove 1 1 .

The first abutment surface 41 is formed directly on the table 1 and extends vertically upward from the second support surface 43 up to the first support surface 12. The first abutment surface 41 and the center line 1 1 1 of the cutting groove 1 1 form a first specific angle β, and the first specific angle β is at any angle between 0 and 90 degrees. The second abutment surface 42 is formed directly on the table 1 and extends vertically upward from the second support surface 43 up to the first support surface 12. The second abutment surface 42 and the centerline 111 of the cutting groove 11 form a second specific angle β, and the second specific angle β is at any angle between 0 and 90 degrees.

A specific angle of less than 180 degrees and greater than or equal to 90 degrees is formed between the first abutment surface 41 and the second abutment surface 42, since the greater than or equal to 90 degrees facilitates the second support region to support the workpiece for accurate cutting. In the present embodiment, the specific angle is 90 degrees, and the first specific angle β between the first abutment surface 41 and the center line 111 and the second specific between the second abutment surface 42 and the center line 111 The angles β, equal, are all 45 degrees, thus achieving a 45 degree chamfer. Of course, the first specific angle β and the second specific angle β may also be unequal. This will be explained in detail in the following embodiments.

The specific operation of the beveling will be described below with reference to Figs. When the left side is to be chamfered by 45 degrees, as shown in FIG. 3, the workpiece 200 to be cut is placed on the second supporting surface 43, and the side surface of the cutting workpiece 200 is closely attached to the first abutting surface 41, of course, for stable positioning, Reliably, the end surface of the workpiece 200 is in close contact with the second abutment surface 42. If the end surface of the workpiece 200 to be cut exceeds the second abutment surface 42, the operator can first cut the excess portion according to the 90 degree vertical cutting method described above. Off, so that the end face of the workpiece can be brought into close contact with the second abutment surface 42; while the handle 36 is operated by the operator, the saw mechanism 3 is pressed downward, so that the saw mechanism 3 pivots about the axis 21, and the movable guard The cover 35 is pivoted relative to the fixed shroud 34 to expose the saw blade 31; the saw blade 31 is then lowered to cut the workpiece 200, so that the left 45 degree bevel of the workpiece 200 can be achieved. In this way, precise chamfering can be achieved without rotating the table or rotating the saw mechanism or changing other structures. Moreover, the overall structure of the cutting machine is greatly reduced, the manufacturing cost is reduced, and the operation is easy and convenient.

Similarly, when the right 45 degree is to be chamfered, as shown in FIG. 4, the workpiece 200 to be cut is placed on the second supporting surface 43, and its side surface is closely attached to the second abutting surface 42, of course, for stable and reliable positioning. The end surface of the workpiece 200 is in close contact with the first abutment surface 41. If the end surface of the workpiece 200 to be cut exceeds the first abutment surface 41, the operator may first cut off the excess portion so that the end surface thereof is in close contact with the first abutment surface 41. However, by the operator operating the handle 36, the saw mechanism 3 is pressed down, the saw mechanism 3 is pivoted about the axis 21, and the saw blade 31 is lowered to cut the workpiece 200, so that the right 45 degree of the workpiece 200 can be achieved. It is chamfered.

Thus, the cutting machine does not need to change or adjust any structure, and only needs to place the workpiece on the first support surface 12 or the second support surface 43 of different heights, and use different vertical abutment surfaces 14 or first, first The two abutting faces 41, 42 are that, by placing the workpiece in the first or second support region, a 90 degree cut or a left and right bevel cut can be achieved. Thereby the overall structure of the cutting machine is reduced, and the production is reduced. This is easy and convenient to operate.

Of course, the cutter can also be used to cut crown wood 300. As shown in FIG. 5, in order to ensure stable and reliable positioning, a detachable auxiliary positioning device 6 is further disposed on the worktable 1, and the auxiliary positioning device 6 includes a fixing base 61 coupled to the worktable 1, and is disposed at the same a support device 62 on the mount, wherein the support device 62 defines a stop face 63 for positioning the workpiece to be cut, wherein the stop face 63 is disposed perpendicular to the second support face 43; and is flush with the first abutment face 41 Used together to support the crown wood 300. In the present embodiment, the auxiliary positioning device 6 is positioned with the first abutment surface 41 to the left 45 degrees; of course, the auxiliary positioning device 6 can also be positioned 45 degrees to the right or other angles with the second abutment surface 42.

The operation is as follows: First, the first side surface 301 of the cut crown wood 300 is placed on the second support surface 43, and the second side surface 302 is closely attached to the stop surface 63 of the auxiliary positioning device 6 and the first abutment surface 41, Of course, for stable and reliable positioning, the end surface 303 is in close contact with the second abutment surface 42. If the end surface of the cut crown wood 300 exceeds the second abutment surface 42, the operator may first cut off the excess portion to make the end surface 303 Adhering to the second abutment surface 42; while the handle 36 is operated by the operator, the saw mechanism 3 is pressed downward to pivot the saw mechanism 3 about the axis 21; the saw blade 31 is then lowered to cut the crown wood 300, thus The left 45 degree precision bevel of the crown wood 300 can be achieved.

Referring again to Figure 2, two baffles 15 are provided on the table 1 on either side of the cutting slot 11. The baffles 15 are located on either side of the saw blade 31 and as close as possible to the saw blade 31 for covering a portion of the saw blade 31. Thus, as shown in FIG. 7, in the rest position, the baffle 15 covers the saw blade 31 together with the fixed shroud 34 and the movable shroud 35, and completely covers the edge of the saw blade 31, thereby improving product safety. The material of the movable shield 35 is reduced. At the same time, since the size of the movable shield is relatively small, the shield driving mechanism (not shown) can be designed to be relatively simple, which makes the operation convenient.

Referring again to Fig. 2, a dust collecting passage 18 is formed between the two baffles 15, and the saw blade 31 passes through the dust collecting passage 18.

As shown in Figs. 2 and 6, a dust box 5 is provided between the fixed shroud 34 and the table 1 at a position adjacent to the pivot 2. The dust box 5 is hollow for collecting chips and dust.

The dust box 5 can be formed integrally with the fixed shield 34 and extends substantially vertically downward from the fixed shield 34, and is substantially rectangular parallelepiped and partially received in the receiving space 13.

The dust box 5 is provided with a dust collecting inlet 52 on the side 54 adjacent to the saw blade, the inlet 52 being connected to the dust collecting passage 18, and the inlet 52 accommodating at least a portion of the shutter 15.

Referring again to FIG. 3, in the sawing position, the baffle 15 can be partially received in the inlet 52 of the dust box 5. And the smaller the gap between the baffle 15 and the sides of the inlet 52, the better. Thus, the chips cut by the saw blade 31 can be discharged into the dust collecting box 5 after the centrifugal force generated by the rotating saw blade 31 and the swirling airflow are sent to the dust collecting passage 18.

As shown in Fig. 6, a filter device that can filter air is attached to the rear of the dust box 5. Of course, a dust bag or the like can be connected to the rear side of the dust box 5. In the present embodiment, the filter device is a movable filter 51 mounted on the dust box 5. When the sawdust and dust in the dust box 5 are precipitated to a certain amount, the filter 51 can be detached. Thereby, the chips can be easily removed from the dust box 5. Of course, it is also possible to mount the filter screen 51 on the dust box 5 in a grounded manner, so that the chips can be removed by simply rotating the filter screen 51.

As shown in FIG. 7, the axis 21 is coplanar or parallel to the first support surface 12 and is located below the first support surface 12, in this embodiment, the arrangement of the dust box 5 can be increased. Volume, thereby increasing the efficiency of dust collection.

As shown in Fig. 9, the cavity 17 below the table 1 can reduce the weight of the entire cutter and reduce the cost. In this carrying position, the saw mechanism 3 is depressed, and the saw blade 31 passes through the cutting groove 11 and extends below the table 1. In order to prevent the saw blade 31 from being exposed to the person, a receiving cavity (not labeled) matching the outer shape of the saw blade 31 is provided below the alignment groove 11 (not shown) on the table 1, at least part of the saw blade 31 is housed in the receiving cavity. The housing chamber is formed by a cover 37 that is fixedly disposed below the table 1. As shown in Fig. 10, the receiving chamber is connected to the dust collecting passage 18. In this way, the chips cut by the saw blade 31 are dropped into the receiving cavity through the cutting groove 11, and the centrifugal force generated by the rotating saw blade 31 and the swirling airflow are guided through the dust collecting passage 18 to enter the dust collecting. In the cartridge 5, the chips are not allowed to overflow into the dust box 5, wherein the air is discharged to the atmosphere through the gas permeable filter 51; and the chips are deposited in the dust box 5. This improves the dust collection effect and protects the working environment.

As shown in Fig. 6, the handle 36 is fixedly disposed on the fixed shield 34 and symmetrically disposed with respect to the saw blade plane of the saw blade 31. Since the saw blade 31 has a certain thickness, the saw blade 31 is ideally considered to have a very small thickness, and the plane in which the saw blade 31 is located is the saw blade plane. The handle 36 is provided with a grip portion 361 for the operator to hold.

In the present embodiment, the handle 36 is substantially D-shaped.

In the carrying position, the handle 36 can act as a carrying handle. As at this position, as shown in Figures 8 and 9, at least a portion of the grip 361 is lower than the blade axis axis 32. Thus, the direction of the operator's force is substantially parallel to the lower bottom surface 19 of the table 1, and the lower bottom surface 19 of the table 1 can be brought closer to the operator, and the operator can carry the cutter in a manner similar to a suitcase. So that it is easy and convenient Handling.

In the second preferred embodiment shown in Fig. 11, the same components are denoted by the same reference numerals as in Figs. 1 to 10.

As shown in Fig. 11, in the embodiment, the cutter further includes a first positioning block 44a and a second positioning block 45a disposed on the table 1. The first positioning block 44a and the second positioning block 45a are detachably mounted on the table 1. Referring to the drawings, the broken line indicates the state in which the first positioning block 44a is mounted on the table 1, and the solid line indicates the first The positioning block 44a is detached from the state of the table 1.

The first positioning block 44a and the second positioning block 45a have a plurality of locking modes with respect to the table 1, a screw locking structure, a pin fixing manner, and the like.

Of course, it is also possible to arrange one of the first positioning block 44a and the second positioning block 45a on the table 1, so that the chamfering can also be achieved.

The first positioning block 44a has a first abutment surface 41a for abutting against the workpiece in a vertical direction, and the second positioning block 45a has a second abutment surface 42a for abutting against the workpiece in a vertical direction, wherein the first abutment The face 41a (shown in phantom in the figure) and the second abutment face 42a form a specific angle, which is 90 degrees in this embodiment. Thus, the first specific angle βΐ formed by the first abutment surface 41a and the center line 111 of the cutting groove 11 is 45 degrees, so that the left 45 degree chamfer can be realized; the second abutment surface 42a and the center line 111 of the cutting groove 11 The second specific angle βΓ formed is also 45 degrees, so that a right 45 degree chamfer can be achieved. Of course, the first specific angle βΐ and the second specific angle βΓ may also be selected at any angle between 0 and 90 degrees as needed, but it is preferable to form the first abutment surface 41a and the second abutment surface 42a. The specific angle is greater than 90 degrees.

The first positioning block 44a and the second positioning block 45a each have a flat upper surface, and the upper surface defines a first supporting surface 12a which can support the workpiece in the horizontal direction.

The table 1 is provided with a second support surface 43a for supporting the workpiece in the horizontal direction. The abutting surface 14a is formed by extending the second supporting surface 43a vertically upward. The first support surface 12a and the abutment surface 14a form a first support area for cutting a workpiece that requires 90 degrees of cutting.

The second support surface 43a and the second and second abutment surfaces 41a, 42a form a second support region for cutting the workpiece to be left and right beveled.

In this way, it is only necessary to place the workpiece in the first or second support area during cutting, so that 90 degree cutting or left and right chamfering can be realized. There is no need to rotate the table, and there is no need to rotate the saw mechanism, thereby greatly reducing the overall structure of the cutting machine, reducing the manufacturing cost, and the operation is easy and convenient.

Of course, the first positioning block 44a and the second positioning block 45a can also be rotatably mounted on On the table 1, when the first positioning block 44a or the second positioning block 45a is rotated, the angle formed by the first abutting surface 41a or the second abutting surface 42a and the center line 111 can be adjusted for convenient cutting of different angles. The angle of the bevel.

In the third preferred embodiment shown in Fig. 12, the same components are denoted by the same reference numerals as in Figs.

As shown in FIG. 12, the third preferred embodiment of the present invention differs from the first preferred embodiment in that: the first abutting surface 41b and the center line 111 of the cutting groove 11 form a first specific angle β2 and a second abutting surface 42b. The second specific angle β2 between the center line 111 and the cutting groove 11 is not equal. The first specific angle β2 is 45 degrees, so that the left 45 degree chamfer can be realized; the second specific angle β2 is 60 degrees, so that the right 60 degree chamfer can be realized.

As with the first embodiment, the first support region includes a first support surface 12b and an abutment surface 14b for cutting a workpiece requiring 90 degree cutting.

The second support region includes a second support surface 43b and second and second abutment surfaces 41b, 42b for cutting the workpiece to be left and right beveled.

In this way, it is only necessary to place the workpiece in the first or second support area during cutting, so that 90 degree cutting or left and right chamfering can be realized, but it is only necessary to align the cutting angle of the workpiece with the cutting groove 11 during cutting. In this way, there is no need to rotate the table, and there is no need to rotate the saw mechanism, thereby greatly reducing the overall structure of the cutting machine, reducing the manufacturing cost, and the operation is easy and convenient.

Claims

Rights request

A cutting machine comprising:

a worktable having a cutting groove, the cutting groove having a center line;

a saw mechanism rotatably coupled to the table by a pivot, wherein the saw mechanism includes a motor located above the table, a saw blade driven by the motor, and a fixed shield covering at least a portion of the saw blade The saw blade portion passes through the cutting groove;

a first support region, the first support region includes a first support surface disposed on the table to support the workpiece in a horizontal direction, and an abutment surface disposed perpendicular to the first support surface, wherein the abutment surface is The centerline forms an angle of 90 degrees;

The utility model is characterized in that: the cutting machine further comprises a second support area, the second support area comprises a second support surface arranged on the table to support the workpiece in a horizontal direction, and at least one perpendicular to the second support surface And an abutting surface disposed, wherein the abutting surface forms an angle of less than 90 degrees with the center line, and the second supporting surface is parallel to the first supporting surface and lower than the first supporting surface.

2. The cutting machine according to claim 1, wherein: the abutting surface comprises a first abutting surface and a second abutting surface respectively disposed on both sides of the cutting groove, wherein the first and second abutting The face forms a first, second, specific angle with the centerline that is less than 90 degrees.

3. The cutting machine according to claim 2, wherein: the first and second support faces are directly formed on the table; the first and second abutment faces are respectively supported by the second support The upper surface extends vertically to the first support surface.

4. The cutting machine according to claim 2, wherein: the second supporting surface is directly formed on the table; the cutting machine further comprises first and second mounted on the table And a positioning block, wherein the first and second abutting surfaces are directly formed on the first and second positioning blocks, and the first supporting surface is directly formed on the upper surfaces of the first and second positioning blocks.

5. The cutting machine according to claim 1, wherein: the table is provided with two baffles respectively located on opposite sides of the cutting groove, and the baffle is used to cover part of the saw blade.

6. The cutting machine according to claim 5, wherein: a dust collecting passage is formed between the two baffles, and the saw blade passes through the dust collecting passage.

7. The cutting machine according to claim 6, wherein: a hollow dust collecting box is disposed between the fixed shroud and the work table and adjacent to the pivot shaft, the dust collecting box The box has an inlet for collecting dust, and the inlet is connected to the dust collecting passage.

8. The cutting machine according to claim 7, wherein: the baffle is partially receivable in the Into σ.

9. The cutting machine according to claim 7, wherein: the dust collecting box is provided with a filtering device.

The cutting machine according to claim 7, wherein a receiving cavity is disposed below the cutting groove, and at least a portion of the saw blade is received in the receiving cavity.

The cutting machine according to claim 10, wherein the receiving chamber is formed by a cover fixedly disposed below the table.

The cutting machine according to claim 10, wherein: the receiving cavity is connected to the dust collecting passage, and the chips generated when the saw blade is cut pass through the receiving cavity and the dust collecting passage. Discharged into the dust box.

13. The cutting machine according to claim 1, wherein: the pivot has an axis that is coplanar or parallel to the first support surface and is located at the first Below the support surface.

14. The cutting machine according to claim 1, wherein: the saw blade has a saw blade plane, and the fixed shield is provided with a handle, and the handle is symmetrically disposed with respect to the plane of the saw blade.

15. The cutting machine according to claim 14, wherein: the saw mechanism is movable between a sawing position and a carrying position, the saw mechanism pivoting about the pivot in the sawing position In the handling position, the saw mechanism is fixed relative to the table and the saw blade passes through the cutting slot.

16. The cutting machine according to claim 15, wherein: the saw blade is mounted on a saw blade shaft, the saw blade shaft having a saw blade axis parallel to the first support surface; the handle There is a grip for the operator to hold, and in the moving position, at least a portion of the grip is lower than the saw blade axis.