CN201702454U - Cutting accessory - Google Patents

Abstract

The utility model relates to a cutting accessory, which is used for assisting a cutting tool with a workbench to process arcs. The workbench is provided with a positioning device and a working surface, the cutting accessory comprises a body contacting with the working surface and a stopper device connected to the body, wherein the stopper device matches with the positioning device automatically so that the cutting accessory is fixed relative to the workbench. Compared with the prior art, the cutting accessory is convenient in positioning operation.

Description

Cutting attachment

Technical field

The utility model relates to a kind of cutting attachment, especially a kind of auxiliary cutting attachment with cutting tool processing camber line of workbench.

Background technology

At present large-scale cutting tool is all likely to have the cutting tool of workbench because its application is many, but the thickness of cut workpiece is more satisfactory etc. former thereby be subjected to the welcome in market.In order further to improve the cutting power of such cutting tool, developed the cutting attachment of multiple such cutting tool of cooperation again.

In this class cutting attachment, comprise a kind of cutting attachment that is specifically designed to incising circular and circular arc, disclosed the cutting attachment that a kind of cooperation has the cutting tool of workbench No. 4244253, utilize this annex can cut out round piece soon as U.S. Pat.This cutting attachment has a guide rail, is provided with center of circle location structure on the guide rail slidably.Regulate the position of location structure on guide rail, the center of circle according to the radius size of wanting incising circular or arc, make center of circle location structure equal radius size apart from the distance of cutting blade, by bolt overlap fixing with the center of circle of the center of circle location structure workpiece centre then, relative again cutting blade turning of work piece, thus cut out round piece.

But this cutting attachment is fixed on the work top all the time by bolt, so cutting work finishes rear attachment to separate work top more loaded down with trivial details, is not very convenient; And having only a position that is used for fixing annex on the work top, annex can't change with respect to the fixed position of workbench, therefore can't accurately regulate for the location of annex, brings bigger cutting error easily; The whole in addition annex comparison heaviness that seems does not meet the development trend of slim and gracefulization of cutting tool.

The utility model content

In view of this, the cutting attachment that provides a kind of positioning action easy is provided the purpose of this utility model.

The technical scheme that the prior art problem that solves the utility model is adopted is: a kind of cutting attachment, be used for auxiliary cutting tool processing camber line with workbench, workbench has positioner and work top, cutting attachment comprises the main body that contacts with work top and is connected in the stop device of described main body, wherein, stop device automatically cooperates with positioner and makes cutting attachment and workbench relative fixed.

Preferably, cutting attachment comprises the elastic component of being located between main body and the stop device.

Preferably, stop device comprises stop element, and workbench comprises the first side around work top, and positioner comprises the notch that is positioned on the first side.

Preferably, stop element pivots with respect to main body and connects.

Preferably, main body is provided with two blocks, and stop element has main part, and main part is extended with block piece and is subjected to the spacing of baffle plate, and stop element is rotated between block.

Preferably, stop element has main part, and the main part setting has the pivot groove of certain radian, and the gear post that passes the pivot groove is set on the main body, and main part is rotated in the radian that the pivot groove limits.

Preferably, stop element has the extension of main part and autonomous body extension, has angle between extension and the main part.

Preferably, stop element has two extensions that main part and autonomous body extend, and has angle respectively between two extensions and the main part, and two angles are the supplementary angle each other.

Preferably, extension has bearing surface and first side or notch butt, and bearing surface is a circular arc.

Preferably, stop element also comprises the tractive unit that connects main part, and tractive unit makes extension break away from notch through external force traction.

Compared with prior art, the utility model is provided with on cutting attachment can be from the stop device of positioner movingly, thereby makes the cutting attachment positioning action easy.

Description of drawings

Above-described the purpose of this utility model, technical scheme and beneficial effect can be described and clearly acquisition simultaneously in conjunction with the accompanying drawings by the following detailed description that can realize specific embodiment of the utility model.

Identical label in accompanying drawing and the specification is used to represent element identical or that be equal to symbol.

Fig. 1 is the cutting attachment of the utility model one specific embodiment and the schematic diagram that cutting tool is used.

Fig. 2 is the enlarged diagram of A part shown in Figure 1.

Fig. 3 is the upper surface vertical view of the cutting attachment of the utility model one specific embodiment.

Fig. 4 is the schematic diagram that blocks along the B-B line among Fig. 3.

Fig. 5 is the cutting attachment of the utility model one specific embodiment and the decomposing schematic representation of workbench groove fit.

Fig. 6 is the upward view of lower surface of the cutting attachment of the utility model one specific embodiment.

Fig. 7 is the schematic diagram of the stop device of the utility model one specific embodiment

Fig. 8 is the upward view of lower surface of the cutting attachment of another specific embodiment of the utility model.

Fig. 9 is the schematic diagram that the stop device of the utility model one specific embodiment is connected to the second side.

Figure 10 is the schematic diagram that the stop device of the utility model one specific embodiment is sticked in positioner.

Figure 11 is the schematic diagram of the stop device of another specific embodiment of the utility model.

Figure 12 is the decomposing schematic representation that the cutting attachment of the utility model one specific embodiment cooperates with workpiece.

Figure 13 is the schematic diagram that the cutting attachment of the utility model one specific embodiment cooperates with workpiece, cutting tool.

Figure 14 is the schematic diagram after the work piece cut of the utility model one specific embodiment.

1, cutting attachment 2, cutting tool 3, main body

4, centralized positioning device 5, locating part 6,6 ', stop element

7, groove 8, appearance cutter groove 9, grip part

10, stop part 11, observation window 12, positioning disk

13, stop device 14, sensing element 15, elastic component

21, workbench 22, blade 23, groove

24, groove 25, knife-edge 26, positioner

27, support arm 31, upper surface 32, lower surface

33, scale 34, fixed leg 35, gear post

41, locator main body 42, tightening member 43, indicator elment

44, locating hole 51, set bolt 60, stop element

61, pivot 62, and 62 ', main part 63,63 ', extension

64, tractive unit 71, first groove 72, second groove

91, grip mouth 101, abutment edge 121, chassis

122, end face 123, end face 124, peep hole

125, reference column 211, work top 212, first side

213, second side 214, stop surface 241, notch

321, baffle plate 322, baffle plate 4 11, fixing hole

601, pivot 602, main part 603, extension

604, tractive unit 621, block piece 622, joint pin

631, bearing surface 711, bottom surface 712, bottom surface

6020, pivot groove 6031, bearing surface W, workpiece

O, center P, point of contact

The specific embodiment

About detailed description of the present utility model and technology contents, conjunction with figs. is described as follows by the following specific embodiments, yet appended accompanying drawing only provides reference and explanation, is not to be used for the utility model is limited.

Referring to figs. 1 through shown in Figure 5, cutting tool 2 is common table tools, for example entablement saw, scroll saw.Multifunctional cutting machines etc., it mainly includes the blade 22 that workbench 21 and cut workpiece are used.Workbench 2 provides operating platform for cut workpiece, the first side 212 that it has the work top 211 of horizontal positioned and is positioned at work top 211 sides, second side 213 and first side 212 is adjacent and vertical mutually, and first side 212 and second side 213 are respectively from work top 211 vertical extensions.Work top 211 is used for place work piece.The groove 24 that work top 211 is provided with groove 23 and intersects vertically with groove 23.Groove 23 and a bit on work top 211 of groove 24 right-angled intersections.Groove 23 extends along lengthwise, and the length direction of its lengthwise is parallel to first side 212, and the opening of groove 23 is positioned on the second side 213.Correspondingly, the length direction of groove 24 is parallel to second side 213, and its notch 241 is positioned on the first side 212.Be provided with a knife-edge 25 at work top 211 near central position, pass on blade 22 vertical directions of cutting tool 2 knife-edge 25 and the part be exposed on the work top 211, blade 22 is positioned at the cutting machine (not shown) fixed clamp that part under the work top 211 then is cut instrument 2, also is provided with the location of support arm 27 with auxiliary blade 22 on the work top 211.During work, cutting machine drives blade 22 and pumps, and cutting is positioned at the workpiece W on the work top 211.

Cutting attachment 1 places on the workbench 21, is used for auxiliary cutting tool 2 Processing Curve.Cutting attachment 1 comprises main body 3, centralized positioning device 4, locating part 5 and stop device 13.Main body 3 places on the work top 211 and can move with respect to workbench 21.Main body 3 has a upper surface 31 and a lower surface 32 corresponding with upper surface 31.Upper surface 31 is used for place work piece W, and 32 of lower surfaces partly contact with work top 211.Part in main body 3 substantial middle positions is recessed to form a series of step troughs downwards by its upper surface 31.Step trough comprises first groove 71, second groove 72 and groove 7 from top to bottom.The bottom surface 711 of first groove 71 is lower than the upper surface 31 of main body 3, and first groove 71 is along the circular arc that is shaped as at the two ends of its length direction.The bottom surface 721 that second groove 72 is positioned at first groove, 71, the second grooves 72 is lower than the bottom surface 711 of first groove 71, and the length of second groove 72 and width are respectively less than the length and the width of first groove 71.7 of grooves are positioned at second groove 72, and groove 7 is lower than the bottom surface 721 of second groove 72, and the length of groove 7 and width are less than the length and the width of second groove 72.Wherein, on the bottom surface 711 of first groove 71, and the both sides that are positioned at groove 7 are provided with the scale 33 that is used for indicating length, and the scale 33 that is positioned at both sides can adopt all lengths system of unit, for example international standard scale and graduated in English.

As shown in Figures 1 to 4, centralized positioning device 4 is used for determining the placement center of workpiece.Centralized positioning device 4 adjustable being arranged on the groove 7 also can be slided along the length direction of groove 7, thereby move with respect to main body 3.Centralized positioning device 4 mainly comprises locator main body 41, tightening member 42, indicator elment 43 and locating hole 44.Locator main body 41 is partly passed groove 7 and is made locator main body 41 be supported in the bottom surface 721 of second groove 72, and the bottom surface 711 of the locator main body 41 and first groove 71 constitutes first supporting surfaces of levels jointly.Have screw thread on the tightening member 42, the fixing hole 411 on the locator main body 41 correspondingly has screwed hole, and the fixing hole 411 of locator main body 41 and tightening member 42 makes tightening member 42 operationally be in fixing or the state that gets loose by threads engaged.Method of operating is as follows, utilizes threaded engagement to tighten tightening member 42 and makes locator main body 41 press the bottom surface 721 of second groove 72, thereby centralized positioning device 4 relative grooves 7 are fixed, and this moment, tightening member 42 was in stationary state; Unscrewing tightening member 42, that locator main body 41 is contacted with the bottom surface 721 of second groove 72 is loosening, thereby makes centralized positioning device 4 relative grooves 7 change its position slidably, and tightening member 42 is in the state of getting loose at this moment.Certainly, tightening member 42 can have the multiple form of expression, for example screw, bolt, clamping device etc.The indicator elment 43 that is used for indicating graduation 33 is arranged on locator main body 41, and indicator elment 43 points to scale 33, and convenient more accurate reading is to determine the position of centralized positioning device 4 with respect to the main body 3 of cutting attachment 1.Locating hole 44 roughly is arranged on the central authorities of locator main body 41, and it is mainly used in the home position of determining workpiece.In the operating process, regulate the position of centralized positioning device 4 in groove 7 slidably according to the radius size of wanting incising circular or arc, regulate according to the scale 33 of indicator elment 43 indication and to tighten tightening member 42 after putting in place it is fixed, can select to want the radius of cut workpiece.

Please refer to Fig. 3 to shown in Figure 6, main body 3 is provided with locating part 5, and locating part 5 just in time cooperates with groove 23 on the work top 211, thus restriction main body 3 laterally moving on work top 211, and the while can also be limited the mobile of main body 3 vertical table faces 211 directions.In the present embodiment, locating part 5 is the raised line that is slidingly matched with groove 23.It is positioned at the lower surface 32 of main body 3 and protrudes in lower surface 32, and locating part 5 is fixedly connected on lower surface 32 by several set bolts 51 with main body 3, and locating part 5 vertically is provided with respect to groove 7.Certainly, the form of expression of locating part 5 is not limited to raised line, other for example the pulley of mating groove 23 can in groove 23, roll and also be fine.As long as locating part 5 places longitudinally groove 23 can move when changing its position, on the direction that laterally is vertical channel 23, be subjected to the restriction of groove 23.As long as meeting the locating part 5 of above-mentioned condition all is within scope of the present utility model.Therefore because the cooperating of locating part 5 and groove 23, perpendicular to groove 23 in a lateral direction, main body 3 is restricted with respect to the mobile of workbench 21, so can make the location of cutting attachment 1 on workbench 21 more accurate.

As shown in Figure 3, the position that is positioned at groove 7 one ends on the main body 3 also is provided with and holds cutter groove 8.Hold cutter groove 8 and run through upper surface 31 and lower surface 32, and be communicated with the side of main body 3.The bearing of trend that holds cutter groove 8 is consistent with the moving direction of locating part 5 in groove 23, and the extended line along the bearing of trend of the length of bearing of trend and groove 7 that holds cutter groove 8 simultaneously is crossing.Hold cutter groove 8 and be equal to, or greater than on the workbench 21 groove 23 to the distance of blade 22 to the distance of locating part 5.Make main body 3 in the process of work top 211 running fixes, the blade 22 of cutting tool 2 can stretch into from the side of main body 3 and hold cutter groove 8, has so not only kept blade 22 with respect to main body 3 location accurate but also protected operator's safety.On main body 3, also be provided with and point to element 14, point to element 14 and be used to indicate the moving direction of main body 3 at work top 211.In the present embodiment, point to element 14 and be one and be arranged on the arrow of upper surface 31, the direction of arrow is represented the moving direction of main body 3 at work top 211.Cutting attachment 1 also is provided with the grip part 9 that is connected with main body 3 one, and grip part 9 is curved and have and grip mouthful 91 a gripping and carrying cutting attachments 1 with the handled easily person, and certainly in other embodiments, grip part 9 also can detachably be provided with main body 3.

End at main body 3 close locating parts 5 also is provided with observation window 11, and observation window 11 runs through upper surface 31 and lower surface 32.At cutting attachment 1 in work top 211 running fix processes, the operator sees through the position that observation window 11 can be seen the groove 23 on the work top 211 at any time, ought occur groove 23 does not like this have to be convenient to the operator and to move cutting attachment 1 on time with locating part 5, and locating part 5 is aimed at fully with groove 23.

Please refer to Fig. 6 to shown in Figure 10, main body 3 also is connected with stop device 13, and cooperates with positioner 26 on workbench 21.In the present embodiment, stop device 13 comprises stop element 6 and stop part 10, and positioner 26 comprises the notch 241 on the work top 211 and is positioned at the stop surface 214 of second side 213.Stop device 13 can with the positioner 26 engagement limits locating parts 5 of workbench 21 moving in groove 23.Stop element 6 roughly is positioned at the lower surface 32 of main body 3, and is positioned at the end away from appearance cutter groove 8 on groove 7 length directions.

Stop element 6 pivots with main body 3 by pivot 61 and is connected.In the present embodiment, pivot 61 is one to have the bolt of screw thread, and the lower surface of bolt and main body 3 32 is connected by threaded engagement.Extend main part 62 from pivot 61, main part 62 be rectangle bulk, its length direction and groove 23 almost parallels.Main part 62 can serve as that axle rotates with respect to main body 3 with pivot 61 like this.Simultaneously, also be provided with the setting that keeps at a certain distance away of two baffle plates, 321,322, two baffle plates 321,322 at the lower surface 32 of main body 3, extend block piece 621 at main part 62 accordingly near the position of baffle plates, block piece 621 is subjected to the position-limiting action of baffle plate 321,322.Block piece 621 is blocked in regional activity between the baffle plate by two baffle plates 321,322, rotates so main part 62 also is limited in this zone.

End at main part 62 is extended with extension 63, and extension 63 relative main parts 62 connect and stretch out.To shown in Figure 10, extension 63 is positioned at a side of main part 62 as Fig. 6, lays respectively at the both sides of main part 62 with pivot 61.And have angle between extension 63 and the main part 62, this angle is the obtuse angle.So, extension 63 can be connected to the first side 212 of workbench 21 or the notch 241 on the first side 212.Extension 63 has arcuate surface with the bearing surface 631 of first side 212 or notch 241, and frictional force reduces when making extension 63 butt notches 241, and main part 62 is around the suffered resistance force diminishes of pivot 61 pivots, and is easier with cooperating of notch 241.

Cutting attachment 2 also comprises the elastic component 15 that is located between main body 3 and the stop element 6.One end of elastic component 15 is connected in main part 62, and the other end of elastic component 15 is connected in main body 3.In the present embodiment, one end of elastic component 15 is fixedly connected on the main part 62 joint pin 622 that extends, and the other end of elastic component 15 is fixedly connected on the fixed leg 34 of lower surface 32 of main body 3, certainly, also can with other connected modes, for example curved hook that protrudes of lower surface 32 etc.The effect of elastic component 15 provides pulling force, and elastic component 15 can be rubber-like elements such as extension spring, spring.As shown in Figure 8, when extension 63 with first side 212 butts and when a direction of groove 23 longitudinallies moved, first side 212 made that by producing resistance with contacting of extension 63 main part 62 is turned an angle around pivot 61.Main part 62 makes elastic component 15 be in extended state and the elastic force that prestores.As shown in Figure 9, during notch 241 on sliding into first side 212, extension 63 makes resistance disappear with first side 212 of short duration disengaging, and elastic component 15 is released elastic force, elastic component 15 promotes main part 62 and pivots around pivot 61, thereby extension 63 is snapped in the notch 241.Thus, can realize that extension 63 is snapped into notch 241 automatically, and not need external force to promote.Because there is angle in extension 63 with respect to main part 62, and main part 62 is parallel with groove 23, in extension 63 snapped in the notch 241 of first side 212, extension 63 can not skid off from notch 241 easily.Make stop device 13 be in the backstop state, main body 3 is restricted with respect to the mobile of workbench 21.

The tractive unit 64 of stop element 6 is fixedly connected on the main part 62.In the present embodiment, tractive unit 64 and extension 63 are positioned at the same side of main part 62, and tractive unit 64 has the loop configuration of hollow, and handled easily person finger catches on tractive unit 64 and lifts.When needs stop device 13 was removed the backstop state, by the traction of external force, tractive unit 64 can make extension 63 detach notch 241, thereby main body 3 can be moved with respect to workbench 21.

In another embodiment, the pivot 601 of stop element 60, extension 603, bearing surface 6031, tractive unit 604 are all similar with pivot 61, extension 63, bearing surface 631, the tractive unit 64 of stop element 6, will describe both differences below in detail.The main part 602 of stop element 60 has pivot groove 6020, and pivot groove 6020 has certain radian, and particularly, the bearing of trend of pivot groove 6020 is with parallel around the circular arc of pivot 601.The lower surface 32 of main body 3 stretches out gear post 35, and gear post 35 partly passes pivot groove 6020 and main part 602 is produced the stop effect, thereby main part 602 can only be rotated in the radian that pivot groove 6020 limits.The surface of tractive unit 64 is coarse plane, and the person that also is not convenient to operation fully contacts and finish push pull maneuver.

In the present embodiment, stop device 13 has also comprised stop part 10.To shown in Figure 7, stop part 10 is located at the position of main body 3 near groove 23 ends as Fig. 4.In the present embodiment, stop part 10 lays respectively at the two ends of main body 3 near groove 23 with observation window 11.Stop part 10 has one from the abutment edge 101 perpendicular to lower surface 32 extensions, and abutment edge 101 can be against the stop surface 214 of living second side 213.Abutment edge 101 can be with main body 3 one-body molded or with the detachable setting of main body.When stop part 10 retaining is received the stop surface 214 of workbench 21, make main body 3 along moving on another direction of groove 23 longitudinallies by backstop.So the combination of the stop part 10 of stop device 13 and stop element 6 can be along making cutting attachment 1 all obtain restriction with respect to moving of workbench on the both direction of the longitudinally of groove 23.Therefore, but stop device 13 by backstop in the positioner 26 locking cutting attachments 1 of workbench 21 along on the both direction of groove 23 longitudinallies with respect to the slip of workbench 21.In the operating process, extremely shown in Figure 9 as Fig. 8, the operator cooperates locating part 5 and snaps in the groove 23 on the work top 211 and promote main body 3 along moving on one of them direction of the longitudinally of groove 23, this moment stop element 6 be connected on the first side 212 of workbench 21, stop part 10 also not with stop surface 214 butts.Then when stop part 10 retainings are connected to second side 213, in the notch 241 of stop element 6 backstops on first side 212.At this moment, the retaining of stop part 10 and stop surface 214 connects and has limited main body 3 moving along a direction of groove 23 longitudinallies, and the engagement limits of stop element 6 positioner 26 of 212 in the first side main body 3 along the moving of another direction of groove 23 longitudinallies of workbench 21, this both cooperation makes main body 3 be restricted moving all along the both direction on groove 23 longitudinallies.Simultaneously, locating part 5 is limited in the mobile of groove 23 makes main body 3 obtaining in a lateral direction on workbench 21 vertical channel 23 longitudinallies locate, thereby the main body 3 of cutting attachment 1 moving on the four direction of two dimensions on the work top 21 all obtains restriction, thereby guarantees the accurate positioning of cutting attachment 1 on workbench 21.Cutting attachment 1 makes when utilizing the cutting tool Processing Curve convenient in the accurate positioning of workbench.

In another embodiment, as shown in figure 11, stop device 13 comprises stop element 6 ', and compares among before the embodiment, and stop device 13 does not need stop part 10, and the quantity of element further reduces.Stop element 6 ' is compared with stop element 6, and both similarities are not just added to give unnecessary details, below just both differences described in detail.Stop element 6 ' has two extensions 63 '.One side of two extension 63 ' autonomous bodies 62 ' is extended, and the setting of two extension 63 ' symmetries.Two extensions 63 ' have angle with main part 62 ' respectively, and one be acute angle, and one is the obtuse angle, and it is the supplementary angle each other.Two extensions 63 ' can snap in the notch 241 of first side 212 simultaneously.In the operating process, the groove 23 on the locating part 5 cooperating table tops 211 also promotes it and moves in groove 23, all is connected in the notch 241 of first side 212 up to two extensions 63 ' of stop element 6 '.At this moment, the main body 3 that contacts restriction cutting attachment 1 of extension 63 ' and the cell wall of notch 241 is along moving on the direction of groove 23 longitudinallies, and the contacting of the cell wall of another extension 63 ' and notch 241 limited its mobile on another direction of groove 23 longitudinallies.By stop element 6 ' cutting attachment 1 all is being restricted along moving on the both direction like this.Certainly, the utility model is not limited to this two specific embodiments, and any main body 3 that makes is all belonging within the protection domain of the present utility model along the mobile stop device that is restricted 13 on the both direction of groove 23 longitudinallies of workbench 2.

Certainly, stop element 6 is not limited to above embodiment, can also comprise other forms such as latch.Latch can move along the direction perpendicular to groove 23.When the needs stop device cooperates the location with notch, only need promote to be positioned at the latch on the cutting attachment, make latch be snapped into the location that notch also can be realized cutting attachment.

As Figure 12 and shown in Figure 13, cutting attachment 1 also comprises the positioning disk 12 that can be connected with centralized positioning device 4.Positioning disk 12 comprises circular chassis 121, and chassis 121 has two opposing end faces 122,123, simultaneously on chassis 121 around branches such as circumference be provided with peep hole 124, in the present embodiment, the quantity of peep hole 124 has four.The center of the end face 122 on chassis 121 has a reference column 125 simultaneously, and reference column 125 can insert in the locating hole 44 of centralized positioning device 4 ordinatedly.What deserves to be mentioned is, because centralized positioning device 4 places on the groove 7, the surface of locator main body 41 is concordant with the bottom surface 711 of first groove 71, makes the bottom surface 711 of locator main body 41 surfaces and first groove 71 constitute the supporting surface of a level to support the chassis 121 of positioning disk 12.After reference column 125 was inserted into locating hole 44, the end face 123 back to reference column 125 on chassis 121 was concordant with the upper surface 31 of main body 3, made end face 123 and upper surface 31 constitute the supporting surface of a level with supporting workpiece.The end face 123 on chassis 121 is used to adhere to workpiece W.In the present embodiment, the attaching of the end face 123 on workpiece W and chassis 121 realizes by double faced adhesive tape.Certainly be not limited thereto, also can lock and wait other means to realize by bolt.

In the operating process, after utilizing center O that the peep hole 124 of circumference five equilibrium determines workpiece W and the reference column 125 of positioning disk 12 overlapping in vertical direction, workpiece W and positioning disk 12 are attached the location, reference column 125 is inserted in the locating hole 44 of circular locator 4, be adjusted in 4 to the correct positions of centralized positioning device in the groove 7.Then, cutting attachment 1 is placed the edge of work top 211 and promote it, engage with the positioner 26 of workbench 21, make cutting attachment 1 fixing with respect to workbench 21 up to stop device 13 with respect to work top 211 slips.In the sliding process of cutting attachment 1 with respect to work top 211, the blade 22 of cutting tool enters and holds cutter groove 8, and contacts and cut with workpiece W generation.Behind cutting attachment 1 fix in position, blade 22 equals the conduct circle of reading according to the scale on the main body 3 33 or the radius of arc to the distance in the workpiece W center of circle.Then promote workpiece W and turn an angle around reference column 125, the blade 22 that workpiece W can be cut instrument 2 cuts out the camber line that has certain angle and comes out, if workpiece W is rotated a circle, can cut out circle, as shown in figure 14.

To sum up, utilize the method for cutting attachment cut workpiece, at first on described workpiece W, determine the center O of the camber line that will cut and workpiece W is positioned on the centralized positioning device 4, mobile agent 3 is selected suitable camber line point of contact P with respect to the position of workbench 21 with the inside at workpiece W then, stop during up to stop device 13 and positioner 26 engagement limits main bodys 3, make described blade 22 on described workpiece, process camber line around center O turning of work piece W again with respect to workbench 21 mobile.

Cao Zuo benefit is like this, and the point of penetration of blade 22 cut workpiece W camber lines is all carried out whole camber line, and need directly do not processed in the edge of workpiece W in the inside of workpiece W in the inside of workpiece W, thereby makes arc shape perfect more.

Claims (10)

1. cutting attachment, be used for auxiliary cutting tool processing camber line with workbench, described workbench has positioner and work top, described cutting attachment comprises the main body that contacts with described work top and is connected in the stop device of described main body that it is characterized in that: described stop device automatically cooperates with described positioner makes described cutting attachment and described workbench relative fixed.

2. cutting attachment according to claim 1 is characterized in that: described cutting attachment comprises the elastic component of being located between described main body and the described stop device.

3. cutting attachment according to claim 1 is characterized in that: described stop device comprises stop element, and described workbench comprises the first side around described work top, and described positioner comprises the notch that is positioned on the described first side.

4. cutting attachment according to claim 3 is characterized in that: described stop element pivots with described main body and is connected.

5. cutting attachment according to claim 4 is characterized in that: described main body is provided with two blocks, and described stop element has main part, and main part is extended with block piece and is subjected to the spacing of described baffle plate, and described stop element is rotated between described block.

6. cutting attachment according to claim 4, it is characterized in that: described stop element has main part, described main part setting has the pivot groove of certain radian, and the gear post that passes described pivot groove is set on the described main body, and described main part is rotated in the radian that described pivot groove limits.

7. cutting attachment according to claim 4 is characterized in that: described stop element has the extension of main part and autonomous body extension, has angle between described extension and the described main part.

8. cutting attachment according to claim 7 is characterized in that: described stop element has two extensions of main part and autonomous body extension, has angle respectively between described two extensions and the described main part, and described two angles are the supplementary angle each other.

9. according to claim 7 or 8 described cutting attachments, it is characterized in that: described extension has bearing surface and described first side or described notch butt, and described bearing surface is a circular arc.

10. cutting attachment according to claim 7 is characterized in that: described stop element also comprises the tractive unit that connects described main part, and described tractive unit makes described extension break away from described notch through external force traction.

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