CN205324867U

CN205324867U - Saw blade

Info

Publication number: CN205324867U
Application number: CN201521126512.9U
Authority: CN
Inventors: 金良米
Original assignee: Yueqing Aisente Tools Co Ltd
Current assignee: Zhejiang Huida Pml Precision Mechanism Ltd
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-06-22
Anticipated expiration: 2025-12-29

Abstract

The utility model discloses a saw blade, its include the shape roughly for circular shape saw blade body and a plurality of cutter unit, cutter unit is the circumference array at the periphery of saw blade body, cutter unit includes sawtooth, the sawtooth back of the body and chip pocket, the rear surface of sawtooth is fixed with the sawtooth back of the body, wherein, main smear metal face and the sawtooth of sawtooth left and right side wherein handing -over department of one side be a chamfer face I, the utility model discloses the utensil reduces to be cut out the clamp force of panel to saw blade body surface, improves saw blade's life. Also can reduce simultaneously panel to saw blade's resistance, improve saw blade's smear metal speed.

Description

Saw blade

Technical field

This utility model relates to a kind of saw blade。

Background technology

Saw blade is used to a kind of instrument of cutting article, and existing saw blade kind has a lot of such as bar shaped saw blade, circular saw blade etc.。Generally adopting circular saw blade when for cuts sheet material, existing circular saw blade mainly includes the blade body being generally circular in shape, the periphery of blade body be some groups circumferentially array cut unit, cut unit include sawtooth, sawtooth the back of the body and chip pocket。The upper surface (also referred to as main chip surface) mainly utilizing sawtooth when carrying out cuts sheet material cuts。It is known that self there is stress in sheet metal or sheet alloy such as steel plate, after cutting, two surfaces of blade body can be produced a clamping force due to the effect of stress by divided two parts, and owing to the effect of this clamping force can increase the resistance to saw blade, can cause time serious that saw blade is stuck in inside sheet material and cannot be further continued for advance cuts, it is most likely that saw blade can be directly resulted in and directly scrap。

Utility model content

This utility model is mainly solving the technical problems that provide a kind of saw blade preventing cropped sheet material from producing stress clamping blade body。

Utility model purpose of the present utility model is realized by below scheme: a kind of saw blade, it includes the blade body that is generally circular in shape and several cut unit, cut the unit circumferentially array periphery in blade body, cut unit and include sawtooth, the sawtooth back of the body and chip pocket；The rear surface of sawtooth is fixing with the sawtooth back of the body；Wherein, the main chip surface of sawtooth is a fillet surface I with the junction of the left and right side wherein one side of sawtooth。

Adopt the structure, when saw blade carries out cuts sheet material, the main chip surface utilizing sawtooth cuts, owing to a side of sawtooth exists fillet surface I with main chip surface, progressively stretch in sheet material along with saw blade, be close to this fillet surface I by a portion cutting out sheet material and move, thus should partially away from the surface of blade body, being cut out the sheet material clamping force to blade body surface thus reaching to reduce, being improved the service life of saw blade。The sheet material resistance to saw blade can also be reduced simultaneously, improve the chip speed of saw blade。

Wherein, the junction of the main chip surface of sawtooth and the left surface of sawtooth is fillet surface I, is fillet surface II with the junction of the right flank of sawtooth。

Adopt the structure, when saw blade carries out cuts sheet material, the main chip surface utilizing sawtooth cuts, owing to a side of sawtooth exists fillet surface I with main chip surface, the junction of the main chip surface of sawtooth and the side II of sawtooth is also a fillet surface II, progressively stretch in sheet material along with saw blade, it is close to fillet surface I by a portion cutting out sheet material to move, another part is close to fillet surface II and is moved, so that cut out the two parts surface away from blade body of sheet material, reduce further and cut out the sheet material clamping force to blade body surface, improve the service life of saw blade。The sheet material resistance to saw blade can also be reduced further simultaneously, improve the chip speed of saw blade further

Wherein, the scope of the included angle A between main chip surface and the fillet surface I of sawtooth is in 130 ° of-170 ° of intervals。

Included angle A adopts this kind of angle, it is possible to reduces and cuts the sheet material impulsive force to this angle during sheet material, simultaneously can so that steel cut out part from blade body surface more away from。

Wherein, the included angle B between the main chip surface of sawtooth and fillet surface II is identical with included angle A。

Included angle B and included angle A adopt equal angular, it is also possible to reduce and cut the sheet material impulsive force to this angle during sheet material, simultaneously can so that steel cut out part from blade body surface more away from。

Wherein, the front portion of the sawtooth back of the body is a fixing seat, and sawtooth is located on fixing seat with fixing seat in being welded and fixed, and the end of the sawtooth back of the body is connected with one end of chip pocket, and the other end of chip pocket is connected with the adjacent fixing seat cutting unit。

Adopting the structure, saw blade is when carrying out cutting just now, and chip can be hugged in chip pocket, and when this chip pocket rotates to steel outside along with saw blade, fragment can be discharged along the sawtooth back of the body。

Wherein, chip pocket is a cancave cambered surface。

Wherein, the sawtooth back of the body is a convex globoidal。The sawtooth back of the body adopts the structure and can increase intensity, and particle during chip simultaneously is because the centrifugal force produced when saw disc rotates can be discharged along convex globoidal。

Wherein, the front surface of sawtooth is provided with dregs guiding groove。Dregs guiding groove be disposed to dust lead effect。

Wherein, the rear surface of sawtooth is provided with chamfering III with the junction of the main chip surface of sawtooth。

Then the setting of chamfering III first discharges further along chamfering III along unlucky the moving of sawtooth when discharging also for chip。

Accompanying drawing explanation

Fig. 1 is the axonometric chart of this utility model embodiment 1；

Fig. 2 is the partial enlarged drawing in F portion in Fig. 1；

Fig. 3 is the front view of this utility model embodiment 1；

Fig. 4 is structural representation during saw cut sheet material；

Fig. 5 is the side view of sawtooth。

Detailed description of the invention

Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail:

Embodiment 1:

With reference to shown in accompanying drawing 1-Fig. 5, a kind of saw blade, it includes the blade body 1, the sawtooth 2 that are generally circular in shape, the periphery of blade body 1 is by being processed to form several sawtooth back of the body 3 and chip pocket 4, the sawtooth back of the body 3 is arranged for the mode of interval setting and circumferentially array with chip pocket 4, the anterior of the sawtooth back of the body 3 forms fixing seat 5, and one end of chip pocket 4 is connected with adjacent fixing seat 5, and the other end is carried on the back 3 with sawtooth and is connected。The sawtooth back of the body 3 is a convex globoidal, and chip pocket 4 is a cancave cambered surface；When cutting sheet material, chip falls in chip pocket 4；Chip pocket 4 is in rotary moving to sheet material along with saw blade, and chip is then owing to the effect of centrifugal force againsts the sawtooth back of the body 3 discharge。

Sawtooth 2 includes front surface 6, rear surface 7, left surface 8, right flank 9, bottom surface 10 and upper surface 11, and upper surface 11 is main chip surface, and bottom surface 10 and rear surface 7 are passed through to be welded and fixed with fixing seat 5。The junction of upper surface 8 and left surface 8 is fillet surface I 12, and the junction of upper surface 8 and right flank 9 is fillet surface II 13。Included angle A between fillet surface I 12 and upper surface 11 is obtuse angle, and this angle is 164 °, and the included angle B between fillet surface II 13 with upper surface 11 is identical with included angle A。Left surface 8 is all parallel with the surface 14 of blade body with right flank 9。Offering dregs guiding groove 15 on front surface 6, dregs guiding groove 15 is near upper surface 11。Upper surface 11 and junction, rear surface 7 are fillet surface III 16.

Kinestate Fig. 4 when being cut out for explanation sheet material only draws a sawtooth, cutting from fig. 4, it can be seen that saw blade is entered in sheet material 17 by C direction, sheet material 17 is divided into left half and right half time cropped, left half moves along fillet surface I 12, and this direction of motion is D；Right half moves along fillet surface II 13, and direction is E。Thus reaching the left and right two parts surface away from blade body, thus playing the effect reducing resistance, reducing stress。

Claims

1. a saw blade, it includes the blade body that is generally circular in shape and several cut unit, cuts the unit circumferentially array periphery in blade body, cuts unit and includes sawtooth, the sawtooth back of the body and chip pocket；The rear surface of sawtooth is fixing with the sawtooth back of the body；It is characterized in that: the junction of the main chip surface of sawtooth and the left and right side of sawtooth wherein one side is a fillet surface I。

2. saw blade according to claim 1, it is characterised in that: the junction of the main chip surface of sawtooth and the left surface of sawtooth is fillet surface I, is fillet surface II with the junction of the right flank of sawtooth。

3. saw blade according to claim 2, it is characterised in that: the scope of the included angle A between main chip surface and the fillet surface I of sawtooth is in 130 ° of-170 ° of intervals。

4. saw blade according to claim 3, it is characterised in that: the included angle B between the main chip surface of sawtooth and fillet surface II is identical with included angle A。

5. saw blade according to claim 1, it is characterized in that: the front portion of the sawtooth back of the body is a fixing seat, sawtooth is located on fixing seat with fixing seat in being welded and fixed, and the end of the sawtooth back of the body is connected with one end of chip pocket, and the other end of chip pocket is connected with the adjacent fixing seat cutting unit。

6. saw blade according to claim 5, it is characterised in that: chip pocket is a cancave cambered surface。

7. saw blade according to claim 5, it is characterised in that: the sawtooth back of the body is a convex globoidal。

8. saw blade according to claim 1, it is characterised in that: the front surface of sawtooth is provided with dregs guiding groove。

9. saw blade according to claim 1, it is characterised in that: the junction of the main chip surface of the rear surface of sawtooth and sawtooth is provided with chamfering III。