CN205414588U - Tooth section to one side - Google Patents

Abstract

The utility model discloses a tooth section to one side, include: discoid saw bit base member, the saw bit base member is outer has offered the skewed tooth groove along being equipped with the annular grinding of circle district uniformly on the circumference in grinding district, the skewed tooth inslot is equipped with the diamond, the diamond is by skewed tooth groove cladding, skewed tooth groove and saw bit base member radially between the contained angle be 60~70. The utility model discloses a tooth section to one side, because the diamond is lived by skewed tooth groove cladding, therefore, at the grinding in -process, the diamond grit does not drop in can not following the skewed tooth groove, furthermore, contained angle between skewed tooth groove and saw bit base member radial is 60~70, can guarantee in cutting process, the skewed tooth groove in grinding district has a better entrance angle, improve the atress angle of the cutting force of diamond, guarantee in cutting process, the diamond grit can not dialled by the work piece, and have well in sharp nature.

Description

Tiltedly dental disk

Technical field

This utility model relates to a kind of helical teeth section.

Background technology

Be applied to valuable grinding of non-metal materials, the machining instruments such as semi-conducting material, circuit board, glass that use in the market mostly are the ultra-thin emery wheel of metallic bond and the ultra-thin emery wheel of resinoid bond and the ultra-thin emery wheel of electrochemical deposition, its Product Process is complicated, needed for product, raw material is expensive, relatively costly.

And use oblique dental disk prepared by metallic matrix during cutting object, easily occur that the mechanic coating power of oblique tooth parcel abrasive material is not enough, cause super hard abrasive to come off from oblique tooth；And the tiltedly inconsistent processing characteristics instability causing oblique dental disk of inconsistent and abrasive material the content of the working lining degree of depth of dental disk, make that grinding skin stock removal everywhere is inconsistent causes oblique dental disk grinding face stress inconsistent, so that tiltedly there is micro-skew in dental disk in working angles, instrument is caused to shake, cause cutting seam bigger, waste raw material, and reduce tool life.

Utility model content

This utility model provides a kind of tiltedly dental disk, to solve at least one of the problems referred to above.

According to an aspect of the present utility model, provide a kind of tiltedly dental disk, including: discoid saw bit matrix, saw bit matrix outer is provided with circular grinding area, grinding area evenly over the circumference offer helical teeth groove, being provided with diamond in helical teeth groove, diamond is coated with by helical teeth groove, and the angle between helical teeth groove and the radial direction of saw bit matrix is 60 °～70 °.

Oblique dental disk of the present utility model, owing to diamond is enveloped by helical teeth groove, therefore, in grinding process, diamond abrasive grain will not come off from helical teeth groove, and, the angle between helical teeth groove and the radial direction of saw bit matrix is 60 °～70 °, can ensure that in working angles, the helical teeth groove of grinding area has a preferable entrance angle, improves the loading angle of the cutting force of diamond, it is ensured that in working angles, diamond abrasive grain will not be dialled by workpiece, and has good self-sharpening.

In some embodiments, the adjacent spacing between helical teeth groove is 0.46mm～0.48mm, thus, the concentration of helical teeth groove cladding diamond can be made to reach maximum, improves the effective cutting edge of diamond abrasive grain in the unit interval and participates in the quantity of cutting, improves grinding efficiency.

In some embodiments, grinding area is 0.02mm with the unilateral thickness difference of saw bit matrix, and the width of grinding area is 1.5mm～2.6mm.Thus, it is possible to make the thickness of the grinding area thickness more than saw bit matrix, such that it is able to prevent oblique dental disk during deep workpiece, owing to the joint-cutting of workpiece is narrow and cause oblique dental disk to be blocked by workpiece.

In some embodiments, also include the most concentrically ringed first destressing groove and the second destressing groove, region between first destressing groove and the second destressing groove forms destressing district, the width of the first destressing groove and the second destressing groove is 0.5mm～0.8mm, and the width in destressing district is 6mm～8mm.Thus, along the track in destressing district, helical teeth section can be suppressed, first destressing groove is near the tooth root of helical teeth groove, first destressing groove can remove the stress that helical teeth groove adds man-hour and produces, second destressing groove can remove, near the endoporus of saw bit matrix, the second destressing groove, the stress that saw bit matrix is remained when punch forming endoporus.

In some embodiments, the excircle in destressing district is 6mm～8mm with the spacing of the excircle of grinding area.Thus, the destressing of this spacing is stress concentration district after measured, after this stress concentration district is carried out destressing so that section has and has preferable burnishing surface, so that saw bit matrix keeps smooth, it is ensured that saw bit matrix will not produce bigger axially rocking when rotating.

In some embodiments, also including that the region between the most concentrically ringed first locating ring and the second locating ring, the first locating ring and the second locating ring forms positioning area, positioning area is positioned at described destressing district.Thus, the most oblique dental disk selects the fixture of suitable dimension that oblique dental disk is carried out clamping when scribing machine clamping.

In some embodiments, the width of the first locating ring and the second locating ring is 0.2mm～0.5mm, and the width of positioning area is 2mm～3mm.Thus, it is possible to saw bit matrix at clamping time, as the reference line of Set and Positioning, it is ensured that saw bit matrix can be accurately positioned.

In some embodiments, the thickness of saw bit matrix is: 0.2mm, 0.4mm, 0.5mm or 0.6mm.Thus, it is possible to according to the workplace of oblique dental disk, select the thickness specification of saw bit matrix adaptively.

Accompanying drawing explanation

Fig. 1 is the oblique dental disk structural representation of a kind of embodiment of this utility model；

Fig. 2 is the A partial structurtes schematic diagram of oblique dental disk shown in Fig. 1.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is described in further detail.

Fig. 1 and Fig. 2 shows the oblique dental disk according to a kind of embodiment of the present utility model.

As shown in Figures 1 and 2, tiltedly dental disk, including discoid saw bit matrix 1, the center of saw bit matrix 1 forms endoporus 10, the outer of saw bit matrix 1 is provided with circular grinding area 2, helical teeth groove 21 is formed the most equably in grinding area 2, in helical teeth groove 21, arow is covered with diamond 22, by two tooth wall rolling Guan Bis of helical teeth groove 21 by the way of mechanical stitch, so that diamond 22 is wrapped in helical teeth groove 21, to prevent oblique dental disk in working angles, diamond 22 comes off from helical teeth groove 21.

Distance (vertical intervals between the most adjacent two helical teeth grooves 21) between adjacent inclined teeth groove 21 is 0.46mm～0.48mm, owing to oblique dental disk is during cutting workpiece, saw bit matrix 1 is affected by material itself, the counteracting force of its maximum tangential force that can bear is limited, on the premise of the counteracting force of the maximum tangential force can born at saw bit matrix 1 itself, the cutting efficiency of comprehensive tiltedly dental disk, the spacing determining helical teeth groove 21 is 0.46mm～0.48mm, so ensure saw bit matrix 1 will not damaged on the premise of, the concentration that can make helical teeth groove 21 cladding diamond reaches maximum, improve the effective cutting edge of diamond abrasive grain in the unit interval and participate in the quantity of cutting, improve grinding efficiency.In the present embodiment, the spacing of helical teeth groove 21 is 0.46mm.In other embodiments, the spacing of helical teeth groove 21 is alternatively 0.47mm or 0.48mm, according to the workplace of oblique dental disk, can select the spacing of helical teeth groove 21 adaptively.

On two planar end surfaces of saw bit matrix 1, preferably it is oppositely disposed ring-type grinding area 2 simultaneously, helical teeth groove 21 extends internally along the outer circumferential end face of saw bit matrix 1, helical teeth groove 21 upright projection distance is the width of ring-type grinding area 2, when diamond is wrapping in helical teeth groove 21, the width of grinding area 2 is also the width of diamond layer, and the diameter of diamond is the thickness of diamond layer in grinding area 2.The width of the diamond layer of grinding area 2 is preferably 2.1mm～2.6mm, grinding area 2 is 0.02mm with the unilateral thickness difference of saw bit matrix 1, i.e., when the unilateral planar end surface of saw bit matrix 1 arranges grinding area 2, the integral thickness in region 0.02mm bigger than the thickness of saw bit matrix 1 residing for grinding area 2, if the bilateral planar end surface of saw bit matrix 1 is respectively provided with grinding area 2, the integral thickness in region 0.04mm bigger than the thickness of saw bit matrix 1 residing for grinding area 2, such setting can ensure that oblique dental disk carry out workpiece deep during, enough gaps can be left between joint-cutting and the saw bit matrix 1 of cut part, saw bit matrix 1 is made to be blocked by joint-cutting so that the joint-cutting that prevents workpiece is narrow.

In the present embodiment, the thickness of saw bit matrix 1 is 0.2mm, and residing for corresponding grinding area 2, the thickness in region is 0.22mm.In other embodiments, the thickness of saw bit matrix 1 is 0.4mm, 0.5mm or 0.6mm, and correspondingly, the thickness in region residing for grinding area 2 is 0.42mm, 0.52mm or 0.62mm.The thickness specification of saw bit matrix 1 according to the workplace of oblique dental disk, can be selected adaptively.

Helical teeth groove 21 can tilt along clockwise direction, when so can be conducive to oblique dental disk circumgyration incision in the clockwise direction, improves grinding ratio；Helical teeth groove 21 can also tilt in the counterclockwise direction, when so can be conducive to oblique dental disk circumgyration incision in the counterclockwise direction, improves grinding ratio.Preferably 60 °～70 ° of the inclination angle (i.e. angle between the radial direction of helical teeth groove 21 and saw bit matrix 1) of helical teeth groove 21, so, can ensure that in working angles, the helical teeth groove 21 of grinding area 2 has a preferable entrance angle, to improve loading angle when diamond 22 cuts, ensureing in working angles, diamond 22 will not be dialled by workpiece, and has good self-sharpening.In the present embodiment, the inclination angle of helical teeth groove 21 is 66 °.In other embodiments, the angle of inclination of helical teeth groove 21 is 62 ° or 68 °, according to the workplace of oblique dental disk, can select the angle of inclination of helical teeth groove 21 adaptively.

As shown in Figures 1 and 2, saw bit matrix 1 also forms the first destressing groove 4, and the second destressing groove 5, first destressing groove 4 and the second destressing groove 5 concentric circular each other, ring-type destressing district 6 is surrounded between first destressing groove 4 and the second destressing groove 5, the width in destressing district 6 is preferably 6mm～8mm, after measured, the area of stress concentration that destressing district 6 is saw bit matrix 1 of this width, can be by saw bit matrix 1 horizontal positioned, use the scroll wheel track operation along destressing district 6 of band bearing, saw bit matrix 1 is rolled, the stress remained in saw bit matrix 1 can be removed the most completely；Distance between the excircle (the first destressing groove 4) in destressing district 6 and the excircle of grinding area 2 is preferably 6mm～8mm, so, can effectively remove the stress of the root portion residual of helical teeth groove 21, second destressing groove 5 remains in the stress in saw bit matrix 1 when can effectively remove punch forming endoporus 10, the width of the first destressing groove 4 and the second destressing groove 5 is 0.5mm～0.8mm such that it is able to preferably release helical teeth groove 21 tooth root and the stress of the neighbouring residual of endoporus 10.

In the present embodiment, the width in destressing district 6 is 6.1mm, and in other embodiments, the width in destressing district 6 is 7mm or 7.8mm, can be according to the processing dimension of oblique dental disk, the width selecting destressing district 6 adaptively.

In destressing district 6, also form the first locating ring 7 and the second locating ring 8, first locating ring 7 and the second locating ring 8 concentric circular each other, first locating ring 7 and the second locating ring 8 surround ring-type positioning area 9, positioning area 9 is positioned at destressing district 6, so, can be conducive to oblique dental disk during clamping on scribing machine, select suitable fixture to carry out clamping.The width of positioning area 9 is preferably 2mm～3mm, the width of the first locating ring 7 and the second locating ring 8 is preferably 0.2mm～0.5mm, so arranging and saw bit matrix 1 can be conducive to when clamping, positioning area 9 can be as the reference line of Set and Positioning, it is ensured that saw bit matrix 1 can Set and Positioning exactly.

Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art, on the premise of creating design without departing from this utility model, it is also possible to making some deformation and improvement, these broadly fall into protection domain of the present utility model.

Claims (8)

1. oblique dental disk, it is characterized in that, including: discoid saw bit matrix (1), described saw bit matrix (1) outer is provided with circular grinding area (2), described grinding area (2) evenly over the circumference offer helical teeth groove (21), it is provided with diamond (22) in described helical teeth groove (21), described diamond (22) is coated with by described helical teeth groove (21), and the angle between the radial direction of described helical teeth groove (21) and described saw bit matrix (1) is 60 °～70 °.

Oblique dental disk the most according to claim 1, it is characterised in that the adjacent distance between described helical teeth groove (21) is 0.46mm～0.48mm.

Oblique dental disk the most according to claim 2, it is characterised in that described grinding area (2) are 0.02mm with the unilateral thickness difference of described saw bit matrix (1), and the width of described grinding area (2) is 1.5mm～2.6mm.

Oblique dental disk the most according to claim 3, it is characterized in that, also include the most concentrically ringed first destressing groove (4) and the second destressing groove (5), region between described first destressing groove (4) and the second destressing groove (5) forms destressing district (6), the width of described first destressing groove (4) and the second destressing groove (5) is 0.5mm～0.8mm, and the width of described destressing district (6) is 6mm～8mm.

Oblique dental disk the most according to claim 4, it is characterised in that the excircle of described destressing district (6) is 6mm～8mm with the spacing of the excircle of described grinding area (2).

6. according to the oblique dental disk described in claim 4 or 5, it is characterized in that, also include the most concentrically ringed first locating ring (7) and the second locating ring (8), region between described first locating ring (7) and the second locating ring (8) forms positioning area (9), and described positioning area (9) is positioned at described destressing district (6).

Oblique dental disk the most according to claim 6, it is characterised in that the width of described first locating ring (7) and the second locating ring (8) is 0.2mm～0.5mm, and the width of described positioning area (9) is 2mm～3mm.

Oblique dental disk the most according to claim 7, it is characterised in that the thickness of described saw bit matrix (1) is: 0.2mm, 0.4mm, 0.5mm or 0.6mm.