CN202517129U

CN202517129U - Cutting element

Info

Publication number: CN202517129U
Application number: CN2011204740026U
Authority: CN
Inventors: 张晓峰
Original assignee: QUANFENG (CHINA)INTERNATIONAL TRADE CO Ltd
Current assignee: QUANFENG (CHINA)INTERNATIONAL TRADE CO Ltd
Priority date: 2011-11-24
Filing date: 2011-11-24
Publication date: 2012-11-07
Anticipated expiration: 2021-11-24

Abstract

The utility model discloses a cutting element which is suitable for a swinging power tool with an output shaft swinging around the axis of the output shaft. The swinging power tool further comprises a motor and a transmission mechanism for converting rotary movement of the motor into swinging movement of the output shaft around the self axis. The cutting element comprises a main body which vertically extends, a mounting hole and a cutting part acting on a work piece to be machined; axis which vertically extends is defined on the main body; the mounting hole is arranged at the first end of the main body and is connected with the output shaft of the swinging power tool; the cutting part is arranged at the second end of the main body; the cutting part comprises a first cutting part and a second cutting part, wherein the second cutting part transversely protrudes out of the first cutting part; the first cutting part is used for cutting the work piece to be machined along a feeding direction; and the second cutting part is used for cutting the work piece to be machined along a direction which is vertical to the feeding direction. The cutting element disclosed by the utility model has the advantages that the cutting element arranged on the swinging power tool and the second cutting part which transversely protrudes out of the first cutting part can effectively reduce vibration, effectively improve the cutting efficiency and effectively improve the chip removal effect.

Description

A kind of cutting element

Technical field

The utility model relates to a kind of cutting element, especially a kind of cutting element that on the swing power tool of hand-held, uses.

Background technology

Multi Role Aircraft is the swing power tool of the common hand-held of industry, and its operation principle is that output shaft centers on self axis and does oscillating motion.For example U.S. Pat RE36909 discloses a kind of Drive Structure of swinging power tool; Comprise casing, be arranged on the motor in the casing, by motor-driven main shaft; Main shaft has the eccentric part of a rotation and the setting of offset rotation axis; One shift fork is connected on the working cell by main shaft drives and manipulation, and an end pivoting of shift fork is connected on the output shaft, and the other end is formed with the fork of a pair of branch and is stuck on the eccentric part on the main shaft; Output shaft is vertical substantially with the main axis rotation axis, moves along the pivot of output shaft and makes output shaft move and drive working head work thereby main shaft converts shift fork to around the rotation of rotation.And when the user after the different working head is installed on the output shaft, can realize multiple different operation function.Common working head comprises straight blade, saw blade, triangle frosted dish, scraper etc., can realize like work requirements such as sawing, cut, grind, scrape.

On the one hand; When the user is installed to the enterprising line operate of output shaft with straight blade, with reference to Figure 17-Figure 19, a kind of saw blade 4 '; It comprises main body 41 ', installing hole 42 ' and cutting part 43 '; Wherein installing hole 42 ' is arranged on first end of main body 41 ', and it is used for linking to each other with the output shaft of swinging power tool, and this cutting part 43 ' is arranged to a gang saw tooth.When the user operated this saw blade 4 ' workpiece to be processed is cut, because saw blade 4 ' is to do oscillating motion around self axis of output shaft, the frequency of its swing can be set to about per minute 10000-25000 time; Its pendulum angle can be set between about 0.5 ° and 7 °; And under the situation of this swing in high frequency, when cutting element cuts along the direction of feed shown in the arrow D, receive the restriction of workpiece to be processed flank and increasing saw blade frictional resistance; Common saw blade is in the cutting workpiece to be processed; Swage set is a similar trapezoidal shape in theory, and the amplitude of the motion that swings of saw blade is progressively limited, and the cutting efficiency of saw blade and chip removal progressively can't be realized; Until the saw blade locking, can not push ahead.Simultaneously, in cutting process, because the vibration that swing in high frequency produces is very big, can feel numb hand when the user uses, thereby influence operational comfort.

The utility model content

The technical problem that the utility model solved is: provide a kind of and reduce to vibrate, effectively improve the cutting element of cutting efficiency and effective chip removal what swing was used on the power tool.

For solving the problems of the technologies described above; Cutting element among the embodiment of the utility model is applicable to that output shaft centers on the swing power tool that self axis is done oscillating motion; This swing power tool comprises that also motor converts rotatablely moving of motor to output shaft is done oscillating motion around himself axis transmission mechanism with being used for; This cutting element comprises main body, the installing hole that lengthwise extends and acts on the cutting part of workpiece to be processed, the axis that this main part limitation one lengthwise extends, and this installing hole is arranged on first end of this main body and links to each other with the output shaft of this swing power tool; This cutting part is arranged on second end of this main body; This cutting part comprises first cutting part and second cutting part, it is characterized in that, this second cutting part is laterally projecting in this first cutting part; This first cutting part cuts workpiece to be processed along direction of feed, and this second cutting part is along perpendicular to the direction of direction of feed workpiece to be processed being cut.Preferably, this second cutting part directly extends and protrudes in the marginal end portion of first cutting part from the marginal end portion of first cutting part.

This main body comprises the side; This first cutting part comprises first cut surface and second cut surface; This second cutting part comprises the 3rd cut surface and the 4th cut surface, and the 3rd cut surface links to each other with this first cut surface or this second cut surface, and the 4th cut surface links to each other with this side.This side comprises first side, second side and the 3rd side; This first side links to each other with first end of this main body, and this second side links to each other with the 3rd side with this first side, and the 3rd side links to each other with the 4th cut surface; This cutting element comprises two second sides; These two second sides are parallel to each other, groove of the common formation in this first side, second side and the 3rd side, and this groove effectively raises the effect of chip removal.

Further; Said second cutting part contains the hardness identical materials of the material that is provided with said first cutting part, and preferably, the material of this first cutting part and at least a portion second cutting part setting is a high-speed steel; The material of this cutting part setting is different from the material that this main body is provided with; Preferably, the hardness of the material of this cutting part setting is higher than the hardness of the material of this main body setting, for example; The material of this cutting part setting is a high-speed steel, and the material of this main body setting is a high-carbon steel.Can effectively improve life-span, the especially service life of second cutting part of cutting element itself like this.

Further, this first cutting part undulate, the 3rd cut surface on second cutting part and first cut surface on first cutting part or second cut surface intersect; The 3rd cut surface limits an angle [alpha] with the 4th cut surface, and the scope of this angle [alpha] is 30 ° to 150 °, and the 3rd cut surface and direction of feed are an angle beta; This angle beta is smaller or equal to 90 °; And this second cutting part limits second length in the horizontal, and this second length is less than 3mm, and this first cutting part has a top; The direction opposite with direction of feed limits a height from this edge, top; Be provided with at least one second cutting part in this height, preferably, this height is smaller or equal to 10mm.

Further; Second of first end of this main body and this main body held row level with both hands; This cutting element is fixed on this output shaft via securing member; This first end equals the thickness of this securing member between first end and second end at least to the vertical range of this second end, is convenient to this swing power tool and is operating in the narrow space relatively.The installing hole of this cutting element comprises eight grooves, and is continuous through the side of installing hole between every two adjacent grooves.

In order to realize the cutting function of second cutting part; This cutting element is installed on this swing power tool; When this cutting element beat certain angle; This second cutting part is laterally projecting in this first cutting part, and especially when this cutting element beat during to maximum angle, this second cutting part is still laterally projecting in this first cutting part.

The utlity model has its advantage, the cutting element that on the swing power tool, is provided with is provided with laterally projecting second cutting part in first cutting part, can effectively reduce to vibrate, effectively improve cutting efficiency and effectively improve the chip removal effect.

Description of drawings

Fig. 1 is that cutting element is installed to the sketch map on the swing power tool among the utility model one embodiment;

Fig. 2 is the floor map of cutting element among the utility model first embodiment;

Fig. 3 is along the cutaway view of C-C among Fig. 2;

Fig. 4 and Fig. 5 are respectively plane and the stereograms in Fig. 2 centre circle A;

Fig. 6 and Fig. 7 are respectively the plane and the stereograms of part sawtooth among second embodiment;

Fig. 8 and Fig. 9 are respectively the plane and the stereograms of part sawtooth among the 3rd embodiment;

Figure 10 and Figure 11 are respectively plane and the stereograms in Fig. 2 centre circle B;

Figure 12 and Figure 13 are respectively the plane and the stereograms of part sawtooth among the 4th embodiment;

Figure 14 and Figure 15 are respectively the plane and the stereograms of part sawtooth among the 5th embodiment;

Figure 16 is the sketch map that the saw blade among the utility model first embodiment cuts;

Figure 17 and Figure 18 are the sketch mapes of cutting element of the prior art;

Figure 19 is the sketch map that saw blade of the prior art cuts.

The specific embodiment

As shown in Figure 1; A kind of electric tool cutting element is disclosed among one embodiment of the utility model, particularly a kind of cutting element that is used to swing power tool, this swing power tool comprises housing 1; Accommodate motor and transmission mechanism (not shown) in the housing; Transmission mechanism comprises that by motor-driven main shaft main shaft has the eccentric part of a rotation and the setting of offset rotation axis, and a shift fork is connected on the working cell by main shaft drives and manipulation; One end pivoting of shift fork is connected on the output shaft; The other end is formed with the fork of a pair of branch and is stuck on the eccentric part on the main shaft, and output shaft is vertical substantially with the main axis rotation axis, moves along the pivot of output shaft and makes output shaft move and drive working head work thereby main shaft converts shift fork to around the rotation of rotation.That is to say that motor will rotatablely move through transmission mechanism and convert the oscillating motion around himself axis 3 of output shaft 2 to.One cutting element 4 is fixedly mounted on the output shaft 2 through securing member 5; Make cutting element 4 and output shaft 2 together do oscillating motion; Their hunting frequency can be set to about per minute 10000-25000 time; Its pendulum angle can be set between about 0.5 ° and 7 °, and through the oscillating motion of high frequency, cutting element 4 little by little is cut into interior.Well known to those skilled in the art, this cutting element also may be used in other swing power tool, and is not limited to this kind transmission mechanism.

Shown in Fig. 2-5 and Figure 10-11, further set forth the cutting element 4 among this embodiment.This cutting element 4 comprises along the main body 41, the installing hole 42 that extend perpendicular to the longitudinally of output shaft axis and acts on the cutting part 6 of workpiece to be processed.Main body 41 limits the axis X that a lengthwise extends; This installing hole 42 is arranged on first end 411 of main body and links to each other with the output shaft of swing power tool; This installing hole 42 comprises eight grooves 421; Continuous through the side 422 of installing hole between every two adjacent grooves, this cutting part 6 is arranged on second end 412 of main body, also is provided with side 43 on the main body 41.This cutting part 6 comprises first cutting part 61 and second cutting part 62; First cutting part 61 comprises a plurality of sawtooth; Each sawtooth has included first cut surface 611 and second cut surface, 612, the second cutting parts 62 are respectively arranged with cutting edge in the both sides of the axis X of the lengthwise extension of main part limitation, and first cut surface 611 is parallel each other; Second cut surface 612 also is parallel to each other each other; Two cutting edges on second cutting part include the 3rd cut surface 621 and the 4th cut surface 622, and Fig. 4 links to each other with the 3rd cut surface 621 with first cut surface 611 at the edge shown in Fig. 5, and the 4th cut surface 622 links to each other with the side 43 of main body; So-called linking to each other; Not only be confined to also comprise linking to each other indirectly between two faces, for example like directly linking to each other between these two faces among Fig. 4 and Fig. 5; Make these two faces link to each other through a plane or a curved surface etc. between two faces, perhaps also can through a plurality of planes, or a plurality of curved surfaces or plane make these two faces link to each other with the combination of curved surface.First cutting part laterally limits first length d 1; The opposite side edge of this first length d 1 from a lateral edges of first cutting part to first cutting part; Preferably, second cutting part directly extends and protrudes in the marginal end portion of first cutting part from the marginal end portion of first cutting part.As shown in Figure 2, this first length d 1 is from the distance the edge of first cut surface 611 of the lower end of second cut surface, 612 to first cutting parts of first cutting part upper end.Second cutting part 62 laterally limits second length d 2; This second length d 2 is the 3rd cut surface and the horizontal vertical range of the intersection the 4th cut surface from a lateral edges of first cutting part to this side second cutting part; Like Fig. 4 and shown in Figure 5, this second length d 2 is from the horizontal vertical range between the intersection of intersection to the three cut surfaces of first cut surface and the 3rd cut surface and the 4th cut surface.Shown in Figure 10 and 11, second length d 2 is from the horizontal vertical range between the intersection of intersection to the three cut surfaces of second cut surface and the 3rd cut surface and the 4th cut surface.This second length d 2 is preferably less than 3mm, is provided with like this to reduce the resistance of second cutting part along direction of feed, and is long if second length is provided with, then possibly cause this cutting element to cut along direction of feed normally.The 3rd cut surface and the 4th cut surface in second cutting part limit an angle [alpha], and preferably, the scope of angle [alpha] is 30 ° to 150 °, and for example, in the present embodiment, angle [alpha] is 85 °.Be provided with like this; Can so that second cutting part in the first of cutting element when direction of feed is cut; Second cutting part can cut along the direction perpendicular to direction of feed, thereby can form similar rectangular swage set shown in figure 16 in theory.Further, form an angle beta between the 3rd cut surface and the direction of feed, preferably, angle beta is smaller or equal to 90 °, and for example, in the present embodiment, angle beta is 58 °.Be provided with like this, make the 3rd cut surface can reduce the resistance of second cutting part along direction of feed.As shown in Figure 2; Side 43 comprises that the 3rd side 433 that links to each other first side 61 with first end of main body, link to each other with the 4th cut surface and 62, the first sides, second side, second side and the 3rd side that link to each other with second side 62 with first side 61 are common and forms a groove, and is parallel each other between these two second sides 62; This groove can be convenient to chip removal; Be not provided with groove on traditional cutting element, and in cutting process, its swage set is similar trapezoidal shape in theory; Therefore when cutting element when direction of feed is cut gradually; Gap between cutting element and workpiece to be processed diminishes gradually, and chip removal is further difficulty also, and the groove that on cutting element, is provided with then effectively raises the effect of chip removal.

In the preferred embodiment; When cutting element 4 cut workpiece to be processed along direction of feed, cut perpendicular to the direction of direction of feed on second cutting part, 62 edges, and be different from bump of the prior art; When cutting, also can effectively reduce the vibration of machine.

In the preferred embodiment, to shown in Figure 3, first end 411 and second end 412 of the main body 41 of this cutting element 4 are provided with in parallel to each other in conjunction with Fig. 1.Smaller or equal to the vertical range between first end 411 and second end 412, be convenient to this swing power tool and operating in the narrow space relatively by such setting at the thickness between first end 411 and second end 412 for securing member 5.

In the preferred embodiment, the material that second cutting part 62 is provided with is identical with the material that first cutting part 61 is provided with at least in part.Preferably, second cutting part 62 contains the hardness identical materials of the material that is provided with said first cutting part 61.For example; Second cutting part 62 adopts high speed steel material to process at least in part; First cutting part 61 also adopts high speed steel material to process, and the 3rd cut surface in second cutting part 62 can be arranged to adopt high speed steel material to process, and promptly the hardness of the material of the 3rd cut surface 621 settings of second cutting part 62 is identical with the hardness of the material of first cutting part, 61 settings; And the material that the intersection between the 3rd cut surface and the 4th cut surface is provided with also is a high-speed steel; And below intersection, can be arranged to high-carbon steel, and well known to those skilled in the art, the hardness of high-carbon steel will be lower than the hardness of high-speed steel usually.Thereby make that second cutting part in this cutting element 4 is more wear-resisting, realization that can be permanent is to the cutting of workpiece to be processed.Can be more easily; Adopt high-carbon steel to process the main part of cutting element 4; First cutting part 61 and second cutting part 62 at cutting element 4 all adopt high-speed steel to process, and can effectively improve life-span, the especially service life of second cutting part of cutting element itself like this.

In the preferred embodiment, the sawtooth undulate on first cutting part 61, the sawtooth that promptly has protrude in a side end face of second end 412, and the sawtooth that has protrudes in the end face of the opposite side of second end 412, and the cutting efficiency that can improve cutting element 4 is set like this.

In the preferred embodiment; First cutting part 61 has a top, and promptly first cut surface 611 in first cutting part 61 and second cut surface 612 intersect the plane away from the intersections place of installing hole 42 that forms, from this edge, plane and direction of feed on the contrary direction limit a height; In this height, one or more cutting part can be set; Preferably, height is smaller or equal to 10mm, if in surpassing the scope of this height, be provided with the words of a plurality of laterally projecting second cutting parts in first cutting part 61 again; The resistance of this cutting element on direction of feed will strengthen, and be unfavorable for that this cutting element is along the cutting on the direction of feed.On perpendicular to direction of feed, realize cutting in order to realize second cutting part; When this cutting element 4 is installed on the swing power tool; When this cutting element beat certain angle, this second cutting part still protrudes in this first cutting part in the horizontal, preferably; Shown in figure 16; When this cutting element beat arrived left and right sides maximum angle, this second cutting part still protruded in this first cutting part in the horizontal, and setting has improved the cutting efficiency of this cutting element effectively like this.

Like Fig. 6 and shown in Figure 7; It has disclosed part cutting element 4 among second embodiment, and (components identical has adopted the Digital ID identical with first embodiment in this embodiment; Down together); Wherein second cut surface 612 of first cutting part 61 links to each other with the 3rd cut surface 621 of second cutting part 62 through a plane, and the angle [alpha] scope that forms between the 3rd cut surface 621 and the 4th cut surface 622 in this embodiment is 30 ° to 150 °, preferably; In the present embodiment, angle [alpha] is 85 °.Form an angle beta between the 3rd cut surface 621 and the direction of feed, preferably, angle beta is smaller or equal to 90 °, and for example, in the present embodiment, angle beta is 58 °.

Like Fig. 8 and shown in Figure 9; It has disclosed the part cutting element 4 among the 3rd embodiment; Wherein second cut surface 612 of first cutting part 61 links to each other with the 3rd cut surface 621 of second cutting part 62, and the angle [alpha] scope that forms between the 3rd cut surface 621 and the 4th cut surface 622 in this embodiment is 30 ° to 150 °, preferably; In the present embodiment, angle [alpha] is 53 °.Form an angle beta between the 3rd cut surface 621 and the direction of feed, preferably, angle beta is smaller or equal to 90 °, and for example, in the present embodiment, angle beta is 90 °.

Like Figure 12 and shown in Figure 13; It has disclosed the part cutting element 4 among the 4th embodiment; Wherein second cut surface 612 of first cutting part 61 links to each other with the 3rd cut surface 621 of second cutting part 62, and the angle [alpha] scope that forms between the 3rd cut surface 621 and the 4th cut surface 622 in this embodiment is 30 ° to 150 °, preferably; In the present embodiment, angle [alpha] is 53 °.Form an angle beta between the 3rd cut surface 621 and the direction of feed, preferably, angle beta is smaller or equal to 90 °, and for example, in the present embodiment, angle beta is 90 °.

Like Figure 14 and shown in Figure 15; It has disclosed the part cutting element 4 among the 5th embodiment; Wherein second cut surface 612 of first cutting part 61 links to each other with the 3rd cut surface 621 of second cutting part 62 through a plane, and the angle [alpha] scope that forms between the 3rd cut surface 621 and the 4th cut surface 622 in this embodiment is 30 ° to 150 °, preferably; In the present embodiment, angle [alpha] is 90 °.Form an angle beta between the 3rd cut surface 621 and the direction of feed, preferably, angle beta is smaller or equal to 90 °, and for example, in the present embodiment, angle beta is 30 °.

Only be wherein several kinds of specific embodiment of the utility model shown in the description of preceding text and the accompanying drawing, it is main with claims that the utility model requires the scope of protection.Through the understanding to preceding text description and accompanying drawing, those of ordinary skill in the art is through same mode, and perhaps with the form through simple replacement, non-creativeness ground is simply replaced partial component and is regarded as in the scope of the utility model protection.For example: this cutting element is applied on other swing power tool that is different from the transmission mechanism of putting down in writing in this specification.

Claims

1. cutting element; Be applicable to that output shaft centers on the swing power tool that self axis is done oscillating motion; Described swing power tool comprises that also motor converts rotatablely moving of motor to output shaft is done oscillating motion around himself axis transmission mechanism with being used for; Said cutting element comprises main body, the installing hole that lengthwise extends and acts on the cutting part of workpiece to be processed, the axis that described main part limitation one lengthwise extends, and described installing hole is arranged on first end of said main body and links to each other with the output shaft of said swing power tool; Described cutting part is arranged on second end of said main body; Described cutting part comprises first cutting part and second cutting part, it is characterized in that, said second cutting part is laterally projecting in described first cutting part; Described first cutting part cuts workpiece to be processed along direction of feed; Described second cutting part is along cutting workpiece to be processed perpendicular to the direction of direction of feed, and said main body comprises the side, and said first cutting part comprises first cut surface and second cut surface; Said second cutting part comprises the 3rd cut surface and the 4th cut surface; Described the 3rd cut surface links to each other with described first cut surface or described second cut surface, and described the 4th cut surface links to each other with described side, and said second cutting part contains the hardness identical materials of the material that is provided with said first cutting part.

2. cutting element according to claim 1 is characterized in that, the hardness of the material that the 3rd cut surface of described second cutting part is provided with is identical with the hardness of the material that described first cutting part is provided with.

3. cutting element according to claim 1 is characterized in that, described second cutting part directly extends and protrude in the marginal end portion of described first cutting part from the marginal end portion of described first cutting part.

4. according to each described cutting element among the claim 1-3, it is characterized in that described the 3rd cut surface and described the 4th cut surface limit an angle [alpha], the scope of described angle [alpha] is 30 ° to 150 °.

5. according to each described cutting element among the claim 1-3, it is characterized in that described the 3rd cut surface and direction of feed are an angle beta, described angle beta is smaller or equal to 90 °.

6. according to each described cutting element among the claim 1-3, it is characterized in that described second cutting part limits second length in the horizontal, described second length is less than 3mm.

7. according to each described cutting element among the claim 1-3; It is characterized in that; Described first cutting part has a top, and the direction opposite with direction of feed limits a height from edge, said top, is provided with at least one second cutting part in the described height.

8. cutting element according to claim 7 is characterized in that described height is smaller or equal to 10mm.

9. according to each described cutting element among the claim 1-3, it is characterized in that described installing hole comprises eight grooves, continuous between every two adjacent grooves through the side of installing hole.

10. cutting element according to claim 1; It is characterized in that; Described side comprises first side, second side and the 3rd side, and described first side links to each other with first end of said main body, and described second side links to each other with the 3rd side with described first side; Described the 3rd side links to each other with described the 4th cut surface, groove of the common formation in described first side, second side and the 3rd side.

11. cutting element according to claim 1 is characterized in that, second of first end of said main body and said main body held row level with both hands.

12. according to each described cutting element among the claim 1-3; It is characterized in that; Described cutting element is fixed on the described output shaft via securing member, and described first end equals the thickness of said securing member between first end and second end at least to the vertical range of described second end.

13. cutting element according to claim 1 is characterized in that, the material of described first cutting part and at least a portion second cutting part setting is a high-speed steel.

14., it is characterized in that the material of described cutting part setting is different from the material that said main body is provided with according to each described cutting element among the claim 1-3.

15. cutting element according to claim 14 is characterized in that, the hardness of the material of described cutting part setting is higher than the hardness of the material of said main body setting.

16. cutting element according to claim 15 is characterized in that, the material of described cutting part setting is a high-speed steel, and the material of described main body setting is a high-carbon steel.

17., it is characterized in that the described first cutting part undulate according to each described cutting element among the claim 1-3.

18., it is characterized in that described the 3rd cut surface and described first cut surface or second cut surface intersect according to each described cutting element among the claim 1-3.

19. according to each described cutting element among the claim 1-3; It is characterized in that; Described cutting element is installed on the described swing power tool, and when described cutting element beat certain angle, said second cutting part is laterally projecting in described first cutting part.