CN102806389A

CN102806389A - Cutter

Info

Publication number: CN102806389A
Application number: CN2012103143169A
Authority: CN
Inventors: 沃伦·布朗; 哈利·索默; 格雷厄姆·格哈德
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2008-10-24
Filing date: 2009-09-28
Publication date: 2012-12-05
Anticipated expiration: 2029-09-28
Also published as: CN102806389B; CN101758291A; CN101758291B

Abstract

A cutter comprises a workbench and a saw mechanism pivoted and connected with the workbench, wherein the saw mechanism comprises a motor positioned above the workbench, a saw blade driven by the rotation of the motor, and a fixing shield at least coating a part of the saw blade. A first support area or a second support area is connected with the workbench in a matching way, so that no structure is required to be changed or adjusted, and as long as a workpiece is placed in the first support area or the second support area, 90-degree vertical cutting, left inclined cutting and right inclined cutting can be realized. Therefore, the overall structure of the cutter is greatly simplified, the manufacturing cost is lowered, and the operation is easy and convenient.

Description

Cutting machine

To be the applicant be " cutting machine " in the denomination of invention of application on 09 28th, 2009 to the application, and application number is dividing an application of 200910179542.9 Chinese invention patent application.

Technical field

The present invention relates to a kind of cutting machine, relate in particular to a kind of cutting machine of cutting sth. askew can realized.

Background technology

Traditional cutting machine has very wide range of application as a kind of cutting tool, can be used to cut a lot of metals or nonmetallic materials, cuts efficient and convenient.Cutting machine generally comprises base, is positioned at the saw with motor and saw blade of base top and is arranged on the guardrail that is used on the base to the workpiece location; Wherein base roughly is provided with the circular rotary table that has cutting groove that horizontally rotates in the centre position, and saw is connected the rear side of this rotary table pivotly through support arm.Guardrail is a location-plate, and this location-plate is made up of the arc connecting portion that the datum plane portion and the middle part at two ends deviates from cutting groove.During use, the operation rotary table make its rotation, thereby this rotary table can drive saw and saw blade forwards required angle to; To be cut workpiece then and be positioned on the rotary table, and be close in the datum plane portion at location-plate two ends; Then push saw at last downwards, saw blade descends to cutting thereupon and is cut workpiece, so just can realize being cut the purpose of cutting sth. askew of workpiece.

But in actual mechanical process, find; Because saw is arranged on the workbench through support arm pivotly; Make the structure more complicated, and base is being provided with the rotary table with rotational structure, making that the parts of whole cutting machine are more; The structure more complicated, thus the cost of making increased.Simultaneously, because heavier parts such as saw are installed on the rotary table, and these parts also need along with rotary table is rotated together, it is more painstaking, inconvenient therefore to rotate.Also increased the complexity of Maintenance and Repair simultaneously.

Summary of the invention

The technical problem that the present invention will solve: a kind of simple in structure, easy to operate cutting machine is provided.

The technical solution adopted for the present invention to solve the technical problems is: a kind of cutting machine comprises: workbench, be provided with cutting groove, and said cutting groove has center line; Saw is rotatably connected on said workbench through pivot, the saw blade that wherein said saw comprises the motor that is positioned at workbench top, driven by the motor rotation and the secure shroud of covered section saw blade at least, and said saw blade partly passes said cutting groove; First supporting zone, said first supporting zone comprise the abutment face that is arranged on the workbench first supporting surface of supporting workpiece in the horizontal direction and is provided with perpendicular to said first supporting surface, and wherein said abutment face and said center line have formed 90 and spent angles; Said cutting machine is provided with second supporting zone; Said second supporting zone comprises and is arranged on the workbench second supporting surface of supporting workpiece in the horizontal direction and adjacent surface that at least one is provided with perpendicular to said second supporting surface; Wherein said adjacent surface and said center line form the angle less than 90 degree, and said second supporting surface is parallel with said first supporting surface and be lower than said first supporting surface.

Said adjacent surface comprises first adjacent surface and second adjacent surface that is separately positioned on said cutting groove both sides, and wherein said first, second adjacent surface and said center line form first, second certain degree less than 90 degree.

Said first, second supporting surface directly is formed on the said workbench; Said first, second adjacent surface upwards extends perpendicularly to said first supporting surface by said second supporting surface respectively.

Said second supporting surface directly is formed on the said workbench; Said cutting machine also comprises first, second locating piece that is installed on the said workbench; Wherein said first, second adjacent surface directly is formed at first, second locating piece respectively, and said first supporting surface directly is formed at the upper surface of said first, second locating piece.

Said workbench is provided with two baffle plates that lay respectively at said cutting groove both sides, and said baffle plate is used for shielding part and divides said saw blade.

Form a control of dust passage between said two baffle plates, said saw blade passes said control of dust passage.

Between said secure shroud and said workbench and in the position of closing on said pivot, be provided with hollow dust-collecting box, said dust-collecting box has the inlet of collecting dust, and said inlet links to each other with said control of dust passage.

Said baffle plate can partly be contained in said inlet.

Said dust-collecting box is provided with filter.

Below said cutting groove, be provided with host cavity, the said saw blade of part is contained in the said host cavity at least.

Said host cavity is formed by the cover body that is fixedly installed on said workbench below.

Said host cavity links to each other with mistake control of dust passage, and the smear metal that is produced during the cutting of said saw blade drains in the said dust-collecting box through said host cavity, said control of dust passage.

Said pivot has axis, said axis and the said first supporting surface coplane or be parallel to said first supporting surface and be positioned at the below of said first supporting surface.

Said saw blade has the saw blade plane, on said secure shroud, is provided with handle, and said handle is provided with respect to said saw blade plane symmetry.

Said saw can be movable between sawing position and carrying position, and in said sawing position, said saw is around said pivots; In said carrying position, said saw is with respect to said stationary table, and said saw blade passes said cutting groove.

Said saw blade is installed on the saw blade axis, and said saw blade axis has the saw blade axis axis that is parallel to said first supporting surface; Said handle has the grip part that supplies the operator to grip, and in the said position of moving, the said grip part of part is lower than said saw blade axis axis at least.

Compared with prior art; Beneficial effect of the present invention: on workbench, be provided with first, second supporting zone; Thereby need not to change or regulate any structure, and only need workpiece is positioned over first supporting zone or second supporting zone, just can realize 90 degree vertically cutting and left and right cutting sth. askew.So, simplified the overall structure of cutting machine widely, reduced cost of manufacture, and operation easily, conveniently.

Description of drawings

Fig. 1 is the stereogram of cutting machine first embodiment of the present invention.

Fig. 2 is the three-dimensional exploded view of cutting machine first embodiment of the present invention.

Fig. 3 is the stereogram of cutting machine first embodiment of the present invention, and a realization left side 45 degree are cut sth. askew.

Fig. 4 is the stereogram of cutting machine first embodiment of the present invention, and right 45 degree of realization are cut sth. askew.

Fig. 5 is the stereogram of cutting machine first embodiment of the present invention, and a realization left side 45 degree are cut sth. askew.

Fig. 6 is the another stereogram of cutting machine first embodiment of the present invention.

Fig. 7 is the left view of cutting machine first embodiment of the present invention, is in position of rest this moment.

Fig. 8 is the left view of cutting machine first embodiment of the present invention, and be in this moment moves the position.

Fig. 9 is the stereogram of cutting machine first embodiment of the present invention, and be in this moment moves the position.

Figure 10 is the part stereogram of cutting machine first embodiment of the present invention, has excised the part workbench.

Figure 11 is the stereogram of cutting machine second embodiment of the present invention.

Figure 12 is the stereogram of cutting machine the 3rd embodiment of the present invention, and saw blade is not installed.

Wherein

1. workbench 11. cutting grooves 111. center lines

12. first supporting surface, 13. receiving spaces, 14. abutment faces

15. baffle plate 16. gaps 17. cavitys

18. control of dust passage 19. bottom surfaces 2. pivots

21. axis 3. saws 31. saw blades

32. saw blade axis axis 33. electric machine casings 34. secure shroud

35. movable shield 36. handles 361. grip parts

37. cover

body

41,41a, 41b first

adjacent surface

42,42a, 42b second adjacent surface

43,43a, the 43b second supporting surface 44a. first locating piece 45a. second locating piece

5. dust-collecting box 51. screen packs 52. enter the mouth

6. auxiliary locator 61. holders 62. bracing or strutting arrangements

63. stop face 200. workpiece 300. crown timber

301. 302. second sides, first side, 303. end faces

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment the present invention is described further.

Extremely shown in Figure 10 referring to Fig. 1, first preferred embodiment of the invention.Saw 3 as depicted in figs. 1 and 2, that cutting machine comprises workbench 1, connects with workbench 1, wherein saw 3 directly is rotatably connected on the workbench 1 through pivot 2, thereby makes cutting machine structure of the present invention simple, compact, and cost is low.

Saw 3 comprises saw blade 31, drives saw blade 31 motor rotating (not shown), reaches secure shroud 34 and movable shield 35 and handle 36, and wherein saw blade 31 is installed on the saw blade axis (not shown), and this saw blade axis has saw blade axis axis 32; Motor is rotatable to be arranged in the electric machine casing 33, is used to drive saw blade 31 and rotates around saw blade axis axis 32; Handle 36 is fixedly installed on the secure shroud 34; On handle 36, be provided with the switch (not label) and the safety switch that are used for starting with disable motor; Certainly, on handle, be provided with two switches (not label) and be used for starting and disable motor for this handle 36 can be fit to right-hand man's operation simultaneously; Secure shroud 34 usually and electric machine casing 33 be connected, in order to cover in part saw blade 31; Movable shield 35 is hinged on the secure shroud 34, is used to hide part saw blade 31, and movable shield 35 can the relative fixed guard shield 34 rotations, be used for cut workpiece to expose saw blade 31.Operating grip 36 just makes saw 3 pivot and carries out cutting work.And secure shroud 34 is processed by metal materials such as aluminium or cast irons usually, improves rigidity.

Workbench 1 is provided with the cutting groove 11 that extends along longitudinally that provides that saw blade 31 passes, and this cutting groove 11 has center line 111, and with pivot 2 vertical settings.Rear side at workbench 1 is provided with roughly semicircular receiving space 13.Workbench 1 can be processed by nonmetallic materials, like the wearability plastics etc., adopts nonmetallic materials such as plastics can reduce the weight of whole cutting machine, convenient carrying, and cost is lower.

Saw 3 can rotate between sawing position and position of rest around the axis 21 of pivot 2, thereby realizes cut workpiece.On pivot 2, be provided with torsion spring (not shown),, push saw 3, compression torsion spring, make saw 3 rotate with respect to workbench 1, realize cutting, like Fig. 3 and shown in Figure 4 around axis 21 in the sawing position; After accomplishing cutting, saw 3 resets to position of rest (as shown in Figure 7) under the effect of torsion spring.And move for ease, saw 3 can also turn to carrying position (like Fig. 8 and shown in Figure 9) around axis 21, moves the position at this, through locking mechanism (not shown) saw 3 is fixed on workbench 1, and this moment, saw blade 31 passed cutting groove 11.This locking mechanism such as those skilled in the art know, and can saw 3 be bundled on the workbench 1 with belt; Or utilize the cooperation in pin and hole that saw 3 is fixed on the workbench 1.

As shown in Figure 1, workbench 1 be provided with supporting workpiece in the horizontal direction first supporting surface 12, and in the vertical direction be used for workpiece against fence assembly.Saw blade axis axis 32 is parallel to this first supporting surface 12.In the present embodiment, first supporting surface 12 is integrally formed with workbench.Fence assembly can be 1 integrally formed with workbench, also can be fixedly installed on the workbench 1.In the present embodiment; This fence assembly is the part of workbench 1; Extended to form vertically upward by first supporting surface 12, this fence assembly has being symmetrical set and is used between 14, two abutment faces 14 of abutment face of workpiece, being provided with the gap 16 that provides saw blade 31 to pass.And because this saw 3 can not be made left and right wallowing motion with respect to perpendicular, so this gap 16 is narrower, thus can be better against workpiece.

This first supporting surface 12 has formed first supporting zone with abutment face 14, and wherein the center line 111 of abutment face 14 and cutting groove 11 has formed the angle of 90 degree, so this first supporting zone is used to support the workpiece that needs 90 degree cuttings.

The specific operation process of cutting with reference to accompanying drawing 1 explanation 90 degree below.During cutting; To be cut workpiece 200 places on first supporting surface 12; And be close to abutment face 14, push saw 3 then downwards, make this saw 3 around axis 21 rotations; Saw blade 31 descends to cutting thereupon and is cut workpiece 200, so just can realize being cut the vertical cutting that 90 of workpiece 200 is spent.

And cut sth. askew in order to realize; This cutting machine also is provided with second supporting zone; This second supporting zone comprises and is arranged on the workbench 1 second supporting surface 43 of supporting workpiece in the horizontal direction and adjacent surface that at least one is provided with perpendicular to this second supporting surface 43; The center line 111 of this adjacent surface and cutting groove 11 has formed the angle less than 90 degree, so this second supporting zone is used to support the workpiece that need cut sth. askew.

In the present embodiment, second supporting surface 43 directly is formed on the workbench 1.And but the not coplane setting parallel with first supporting surface 12 of second supporting surface 43, both have different height, form step, and second supporting surface 43 are lower than first supporting surface 12.Even, can not receive the influence of second supporting surface 43 so the workpiece of broad is positioned on first supporting surface 12 yet.

In the present embodiment, adjacent surface comprises first adjacent surface 41 and second adjacent surface 42 that is separately positioned on cutting groove 11 both sides.

Wherein first adjacent surface 41 directly is formed on the workbench 1, and is extended vertically upward until first supporting surface 12 by second supporting surface 43.The center line 111 of first adjacent surface 41 and cutting groove 11 has formed the first certain degree β, and this first specific angle β arbitrarily angled between 0 degree and 90 degree.

Second adjacent surface 42 directly is formed on the workbench 1, and is extended vertically upward until first supporting surface 12 by second supporting surface 43.The center line 111 of second adjacent surface 42 and cutting groove 11 has formed the second certain degree β ', and this second specific angle β ' arbitrarily angled between 0 degree and 90 degree.

Formed between first adjacent surface 41 and second adjacent surface 42 less than 180 the degree and more than or equal to 90 the degree certain degree because more than or equal to 90 the degree can make things convenient for the second supporting zone supporting workpiece, accurately cut.In the present embodiment, this certain degree is 90 degree, and the first certain degree β between first adjacent surface 41 and the center line 111 equates with the second certain degree β ' between institute second adjacent surface 42 and the center line 111, all is 45 to spend, thereby realizes that 45 spend and cut sth. askew.Certainly, the first certain degree β and the second certain degree β ' also can be unequal.Can specify among this embodiment below.

The specific operation process of cutting sth. askew with reference to accompanying drawing 3-4 explanation below.When need are cut sth. askew a left side 45 when spending; As shown in Figure 3; To be cut workpiece 200 and place on second supporting surface 43, and first adjacent surface 41 will be close in the side of cut workpiece 200, certainly for positioning stablity, reliable; The end face of workpiece 200 is close to second adjacent surface 42; Exceed second adjacent surface 42 if be cut the end face of workpiece 200,90 degree that the operator can describe according to the front vertically cutting method earlier redundantly part cut away, so just can so that the end face of this workpiece be close on second adjacent surface 42; So, push saw 3 downwards, this saw 3 is pivoted around axis 21, thereby movable shield 35 relative fixed guard shields 34 pivots expose saw blade 31 simultaneously to by operator's operating grip 36; Saw blade 31 cut workpiece 200 that thereupon descends so just can realize that a left side 45 degree of workpiece 200 are cut sth. askew.So, need not rotary table, also need not to rotate again saw, or change other structure and just can realize accurately cutting sth. askew.But also simplified the overall structure of cutting machine widely, reduced cost of manufacture, and operation easily, convenient.

Equally, when need cut sth. askew right 45 when spending, as shown in Figure 4; To be cut workpiece 200 and place on second supporting surface 43, and its side is close to second adjacent surface 42, certainly for positioning stablity, reliable; The end face of workpiece 200 is close to first adjacent surface 41; Exceed first adjacent surface 41 if be cut the end face of workpiece 200, the operator can be close on first adjacent surface 41 its end face earlier with partly cutting away redundantly; So, push saw 3 downwards, this saw 3 is pivoted around axis 21 to by operator's operating grip 36, saw blade 31 cut workpiece 200 that thereupon descends, the right side 45 that so just can realize workpiece 200 is spent and has accurately been cut sth. askew.

So; This cutting machine need not to change or regulate any structure; Only need workpiece is placed on first supporting surface 12 or second supporting surface 43 of differing heights, and use different vertical abutment face 14 or first, second

adjacent surface

41,42, that is to say; Workpiece is positioned over first or second supporting zone, just can realizes 90 degree cutting or left and right cutting sth. askew.Thereby simplified the overall structure of cutting machine, reduced cost of manufacture, and operation easily, conveniently.

Certainly, this cutting machine also can be used for cutting crown timber 300.As shown in Figure 5; For positioning stablity, reliable; On workbench 1, also be provided with dismountable auxiliary locator 6; This auxiliary locator 6 comprises and connects at the holder on the workbench 1 61 and be arranged on the bracing or strutting arrangement 62 on this holder that wherein bracing or strutting arrangement 62 has defined the stop face 63 that is used to be cut the workpiece location, wherein this stop face 63 and the 43 vertical settings of second supporting surface; And concordant with first adjacent surface 41, be used for supporting crown timber 300 jointly.In the present embodiment, this auxiliary locator 6 and first adjacent surface 41 come together to locate a left side 45 degree; Certainly, this auxiliary locator 6 also can with second adjacent surface 42 come together position right 45 degree or other angles.

Operate as follows: first side 301 that at first will be cut crown timber 300 places on second supporting surface 43; And the stop face 63 and first adjacent surface 41 of its second side 302 being close to auxiliary locator 6; Certainly for positioning stablity, reliable, its end face 303 is close on second adjacent surface 42, exceeds second adjacent surface 42 if be cut the end face of crown timber 300; The operator can be close on second adjacent surface 42 its end face 303 earlier with partly cutting away redundantly; So, push saw 3 downwards, this saw 3 is pivoted around axis 21 to by operator's operating grip 36; Saw blade 31 descends thereupon and cuts crown timber 300, so just can realize that a left side 45 degree of crown timber 300 have accurately been cut sth. askew.

Referring to Fig. 2, on workbench 1, be provided with two baffle plates 15 that lay respectively at cutting groove 11 both sides again.Baffle plate 15 is positioned at the both sides of saw blade 31 and as far as possible near saw blade 31, is used to hide part saw blade 31.So, as shown in Figure 7, at position of rest, this baffle plate 15 hides saw blades 31 jointly with secure shroud 34 and movable shield 35, and coats the edge of saw blade 31 fully, has improved security of products, the material of the guard shield 35 that also takes in sail; Simultaneously because the movable shield size is smaller,, make easy to operate so that shield drive mechanism (not shown) just can design is fairly simple.

Referring to Fig. 2, form a control of dust passage 18 between two baffle plates 15 again, saw blade 31 passes this control of dust passage 18.

Like Fig. 2 and shown in Figure 6, between secure shroud 34 and workbench 1 and the position of closing on pivot 2 be provided with dust-collecting box 5.This dust-collecting box 5 is hollow, is used to collect smear metal and dust.

Dust-collecting box 5 can be integrally formed with secure shroud 34, and on secure shroud 34, extend vertically downward basically, roughly be cuboid, and part is contained in the receiving space 13.

Dust-collecting box 5 is provided with the inlet 52 of collecting dust on the side 54 near saw blade, this inlet 52 links to each other with control of dust passage 18, and this inlet 52 can be accommodated part baffle plate 15 at least.

Referring to Fig. 3, in the sawing position, baffle plate 15 can partly be contained in the inlet 52 of dust-collecting box 5 again, and baffle plate 15 and the gap that enters the mouth between 52 dual-sides are more little good more.So, workpiece can be sent into control of dust passage 18 afterwards and drain in the dust-collecting box 5 along with the centrifugal force that saw blade 31 produced of rotation and swirling eddy by smear metal that saw blade 31 cut out.

As shown in Figure 6, connect at the rear of this dust-collecting box 5 can filtered air filter, certainly, also can be connected with dust bag or the like at the rear side of dust-collecting box 5.In the present embodiment, filter is mobilizable screen pack 51 that is installed on the dust-collecting box 5, when the sawdust in the dust-collecting box 5 and dust are deposited to when a certain amount of, just can screen pack 51 be disassembled, thereby just can easily smear metal be removed from dust-collecting box 5.Certainly, also can screen pack 51 be installed on the dust-collecting box 5 to change the ground mode, so, only need to rotate screen pack 51 and just can smear metal be removed.

As shown in Figure 7, axis 21 and first supporting surface, 12 coplanes or be parallel to first supporting surface 12 and be positioned at the below of first supporting surface 12 in the present embodiment, so are provided with the volume that can increase dust-collecting box 5, thereby improve the efficient of control of dust.

As shown in Figure 9, workbench 1 below is a cavity 17, so, can reduce the weight of whole cutting machine, but also reduce cost.In this carrying position, saw 3 presses down, and saw blade 31 is through cutting groove 11 and extend to the below of workbench 1.Hurt the people in order to prevent that saw blade 31 from exposing, be provided with the host cavity (not label) that the profile with saw blade 31 is complementary so on workbench 1, aim at the below of cutting groove 11 (not shown), part saw blade 31 is contained in this host cavity at least.Host cavity is formed by the cover body 37 that is fixedly installed on workbench 1 below.Shown in figure 10, host cavity links to each other with control of dust passage 18.So; The smear metal that workpiece is cut out by saw blade 31 is after cutting groove 11 is fallen into host cavity; The centrifugal force and the swirling eddy that can be produced along with the saw blade 31 of rotation enter in the dust-collecting box 5 through the guiding of control of dust passage 18; Smear metal can not loose overflow dust-collecting box 5, its air is discharged in the atmosphere through ventilative screen pack 51; Smear metal then is deposited in the dust-collecting box 5.So improve dust collecting effect, protected working environment.

As shown in Figure 6, handle 36 is fixedly installed on the secure shroud 34, and is with respect to the saw blade plane of saw blade 31 and is symmetrical set.Because saw blade 31 has certain thickness, therefore saw blade 31 is idealized when thinking that its thickness is minimum, the plane that saw blade 31 belongs to promptly is the saw blade plane.This handle 36 is provided with the grip part 361 that supplies the operator to grip.

In the present embodiment, this handle 36 roughly is D shape.

In the carrying position, this handle 36 can be used as carrying handle.Because in this position, like Fig. 8 and shown in Figure 9, part grip part 361 is lower than saw blade axis axis 32 at least.So, operator's bottom surface 19 almost parallels that make force direction and workbench 1, and can make the bottom surface 19 of workbench 1 more near the operator, the operator can carry this cutting machine with the mode that is similar to suitcase.Thereby realize easily, carrying easily.

In second preferred embodiment shown in Figure 11, identical parts use with Fig. 1 to Figure 10 in identical label.

Shown in figure 11, in an embodiment, cutting machine also comprises the first locating piece 44a and the second locating piece 45a that is arranged on the workbench 1.Wherein the first locating piece 44a and the second locating piece 45a are dismountable is installed on the workbench 1, can be referring to accompanying drawing, and dotted line representes that the first locating piece 44a is installed in the state on the workbench 1 among the figure; Solid line representes that the first locating piece 44a separates the state of workbench 1.

And that the first locating piece 44a and the second locating piece 45a have with respect to the locking mode with workbench 1 is a variety of, and the screw lock structure is arranged, or the latch fixed form or the like.

Certainly, also can one of them be arranged on the workbench 1 with the first locating piece 44a and the second locating piece 45a, so, can realize equally cutting sth. askew.

The first locating piece 44a has and is used for the first adjacent surface 41a of in the vertical direction against workpiece; The second locating piece 45a has and is used for the second adjacent surface 42a of in the vertical direction against workpiece; Wherein the first adjacent surface 41a (shown in dotted line among the figure) and the second adjacent surface 42a have formed certain degree, and this certain degree is 90 degree in the present embodiment.So, the first certain degree β 1 that the center line 111 of the first adjacent surface 41a and cutting groove 11 forms is 45 degree, thereby can realize cutting sth. askew of a left side 45 degree; The second certain degree β 1 ' that the center line 111 of the second adjacent surface 42a and cutting groove 11 forms also is 45 degree, thereby can realize cutting sth. askew of right 45 degree.Certainly, this first certain degree β 1 and the second certain degree β 1 ' also can select 0 to spend arbitrarily angled between 90 degree as required, but note and preferably make certain degree that win adjacent surface 41a and the second adjacent surface 42a form greater than 90 degree.

The first locating piece 44a and the second locating piece 45a all have smooth upper surface, and this upper surface has formed the first supporting surface 12a of supporting workpiece in the horizontal direction.

Workbench 1 is provided with the second supporting surface 43a of supporting workpiece in the horizontal direction.And abutment face 14a is extended to form by the second supporting surface 43a vertically upward.Wherein the first supporting surface 12a and abutment face 14a have formed first supporting zone, are used to cut the workpiece that needs 90 degree cuttings.

The second supporting surface 43a and second, the second adjacent surface 41a, 42a have formed second supporting zone, and being used to cut need left and right workpiece of cutting sth. askew.

So, only need during cutting workpiece is positioned over first or second supporting zone, just can realize 90 degree cutting or left and right cutting sth. askew.And need not rotary table, and also need not to rotate again saw, thereby simplified the overall structure of cutting machine widely, reduced cost of manufacture, and operation is easily, conveniently.

Certainly; The first locating piece 44a and the second locating piece 45a also can be installed on the workbench 1 with rotating mode; So when the first locating piece 44a or second locating piece 45a rotation; Just can regulate the angle that the first adjacent surface 41a or the second adjacent surface 42a and center line 111 form, be used for the mis-cut angle of convenient cutting different angles.

In the 3rd preferred embodiment shown in Figure 12, identical parts use with Fig. 1 to Figure 10 in identical label.

Shown in figure 12, the 3rd preferred embodiment of the present invention and the difference of first preferred embodiment are: the second certain degree β 2 ' between the first certain degree β 2 that the center line 111 of the first adjacent surface 41b and cutting groove 11 forms and the center line 111 of the second adjacent surface 42b and cutting groove 11 is unequal.Wherein the first certain degree β 2 is 45 degree, thereby can realize cutting sth. askew of a left side 45 degree; The second certain degree β 2 ' is 60 degree, thereby can realize cutting sth. askew of right 60 degree.

With first embodiment, first supporting zone comprises the first supporting surface 12b and abutment face 14b, is used to cut the workpiece that needs 90 degree cuttings.

Second supporting zone comprises the second supporting surface 43b and second, the second

adjacent surface

41b, 42b, and being used to cut needs left and right workpiece of cutting sth. askew.

So, only need during cutting workpiece is positioned over first or second supporting zone, just can realize 90 degree cutting or left and right cutting sth. askew, but when cutting, notice that the angular alignment cutting groove 11 that workpiece need be cut gets final product.So need not rotary table, also need not to rotate again saw, thereby simplified the overall structure of cutting machine widely, reduced cost of manufacture, and operation easily, conveniently.

Claims

1. cutting machine comprises:

Workbench is provided with cutting groove, and said cutting groove has center line; Said workbench also is provided with first supporting surface of supporting workpiece in the horizontal direction and the abutment face that is provided with perpendicular to said first supporting surface, and wherein said abutment face and said center line have formed 90 and spent angles;

Saw; Said saw is rotatably connected on said workbench through pivot; The saw blade that wherein said saw comprises the motor that is positioned at workbench top, driven by the motor rotation and the secure shroud of covered section saw blade at least, said saw blade partly passes said cutting groove;

It is characterized in that: said pivot has axis, said axis and the said first supporting surface coplane or be parallel to said first supporting surface and be positioned at the below of said first supporting surface.

2. cutting machine according to claim 1 is characterized in that: between said secure shroud and said workbench and in the position of closing on said pivot, be provided with hollow dust-collecting box.

3. cutting machine according to claim 2 is characterized in that: said workbench is provided with two baffle plates that lay respectively at said cutting groove both sides, and said baffle plate is used for shielding part and divides said saw blade.

4. cutting machine according to claim 3 is characterized in that: form a control of dust passage between said two baffle plates, said dust-collecting box has and said control of dust passage inlet mutually.

5. cutting machine according to claim 4 is characterized in that: said baffle plate can partly be contained in said inlet.

6. cutting machine according to claim 2 is characterized in that: said dust-collecting box is provided with the filter that is used for filtered air.

7. cutting machine according to claim 1; It is characterized in that: said cutting machine also comprises and is arranged on the workbench second supporting surface of supporting workpiece in the horizontal direction, adjacent surface that at least one is provided with perpendicular to said second supporting surface; Wherein said adjacent surface and said center line form the angle less than 90 degree, and said second supporting surface is parallel with said first supporting surface and be lower than said first supporting surface.

8. cutting machine according to claim 7; It is characterized in that: said adjacent surface comprises first adjacent surface and second adjacent surface that is separately positioned on said cutting groove both sides, and wherein said first, second adjacent surface and said center line form first, second certain degree less than 90 degree.

9. cutting machine according to claim 8 is characterized in that: said first, second supporting surface directly is formed on the said workbench; Said first, second adjacent surface upwards extends perpendicularly to said first supporting surface by said second supporting surface respectively.

10. cutting machine according to claim 8 is characterized in that: said second supporting surface directly is formed on the said workbench; Said cutting machine also comprises first, second locating piece that is installed on the said workbench; Wherein said first, second adjacent surface directly is formed at first, second locating piece respectively, and said first supporting surface directly is formed at the upper surface of said first, second locating piece.