CN204997156U - A do and cut saw for cutting iron - Google Patents
A do and cut saw for cutting iron Download PDFInfo
- Publication number
- CN204997156U CN204997156U CN201520677964.XU CN201520677964U CN204997156U CN 204997156 U CN204997156 U CN 204997156U CN 201520677964 U CN201520677964 U CN 201520677964U CN 204997156 U CN204997156 U CN 204997156U
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- CN
- China
- Prior art keywords
- saw
- cutting
- tool bit
- tooth
- sawtooth
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- Expired - Fee Related
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Abstract
A do and cut saw for cutting iron, including saw bit base member and the sawtooth tool bit that has the mounting hole, the outer fringe circumference of saw bit base member be equipped with the sawtooth, set up chip pocket at the bottom of the tooth on the saw bit base member between the adjacent sawtooth, the sawtooth meet the toothholder to the direction of cutting on be equipped with the arch, bellied inside wall forms the draw -in groove that is used for imbedding the sawtooth tool bit with toothholder laminating knife face, the rake face of sawtooth tool bit bottom is equipped with the breach with protruding clearance fit, and the bottom embedding of sawtooth tool bit and rigid coupling are in the draw -in groove of toothholder, and protruding supporting is equipped with to the sunken pit of mounting hole direction at breach department back of tooth upper surface. The beneficial effects of the utility model are that: reduce the possibility of tool bit and the garrulous tooth of broken teeth, guaranteed the security of cutting, effectively improve saw bit life, the back of tooth is favorable to reducing the smear metal that produces and gets into chip pocket and the mutual friction of tool bit anterior angle facial features among the cutting process, improved the quality on cutting surface, has reduced friction and calorific capacity of cutting process, has improved the life of saw bit.
Description
Technical field
The utility model relates to a kind ofly cuts saw for cutting the dry of iron.
Background technology
Cut iron traditionally and cut saw with dry, be made up of cutter head and saw bit matrix.Cutter head is fixed by welding on saw bit matrix toothholder, cutter head weld strength and the life-span general.But existing dry saw of cutting (is also made up of with cutter head 2 ' the sawtooth matrix 1 ' with sawtooth 3 ', cutter head 2 ' is welded on the toothholder of sawtooth matrix 1 ') there is tool bit abrasion, problem that cutter head comes off, and in cutting process unsafe problem.
Summary of the invention
Coming off to solve cutter head, wearing and tearing and lacking the problem of security in steel cutting, the utility model proposes a kind of can improve that iron and steel metalloid cutting security can increase the service life again can extend cutter head life-span, cutter head and saw blade in conjunction with firm difficult drop-off and noise abatement fall shake cut saw for cutting the dry of iron.
Described in the utility modelly cut saw for cutting the dry of iron, comprise the saw bit matrix with installing hole and saw-tooth tool bit, the outer rim of described saw bit matrix is circumferentially with sawtooth, described saw bit matrix between adjacent sawtooth arranges chip pocket at the bottom of tooth, it is characterized in that: the toothholder in direction of meeting to cutting of described sawtooth is provided with projection, the madial wall of described projection and toothholder knife face of fitting forms draw-in groove for embedding saw-tooth tool bit; Be provided with the breach with protruding matched in clearance bottom the rake face of described saw-tooth tool bit, the bottom of described saw-tooth tool bit embeds and is fixed in the draw-in groove of toothholder, and described projection is against described indentation, there; The back of tooth upper surface of described sawtooth is provided with the pit to installing hole direction depression.
The longitudinal section of the breach of described saw-tooth tool bit is right-angled trapezium, and the upper bottom of right-angled trapezium is vertical direction, and the bottom of right-angled trapezium is positioned in the plane at saw-tooth tool bit rake face place.
Distance a between inner side wall and the rear knife face of saw-tooth tool bit is 1 ~ 1.2mm, and between inner side wall and protruding madial wall, the width b in gap is 0.1 ~ 0.2mm; Protruding width c is 0.5 ~ 0.8mm, and protruding height d is 0.3 ~ 0.5mm, and the angle α between breach upper surface and horizontal plane is 10 ~ 20 °.
The back of tooth does not install the drift angle of the side of saw-tooth tool bit with circular arc chamfering, and wherein the radius R 1 of circular arc is 1 ~ 2mm, and the central angle β that circular arc is corresponding is 65 ~ 75 °.
Described pit is arc-shaped structure, and the radius R 2 of its pits circular arc is 2 ~ 3mm, and the central angle γ that pit circular arc is corresponding is 145 ~ 155 °.
Described saw-tooth tool bit is welded on described toothholder.
Described saw bit matrix distributes many lanyards, and described lanyard likeness in form damping curve, every bar lanyard is along the arrangement of saw bit matrix radial direction.
The head end of lanyard and the distance of installing hole are greater than the distance of lanyard tail end and installing hole.
The beneficial effects of the utility model are: when all kinds of iron and steel tubing of cutting processing and bar, cutter head and saw bit matrix toothholder adopt chimeric profile design, tensile strength in the weld strength of cutter head and cutting process significantly increases, reduce the possibility falling cutter head and button holding in saw blade cutting process, ensure that the security of cutting, effectively can improve saw blade lifetime; The saw bit matrix back of tooth adopts bow-backed shape to design, before the chip being conducive to producing in minimizing cutting process enters chip pocket and cutter head, edged surface rubs mutually, improve the quality of cutting surfaces, decrease friction and the caloric value of cutting process, improve the service life of saw blade.
Accompanying drawing explanation
Fig. 1 is the part-structure figure of conventional blade.
Fig. 2 is the A point enlarged drawing of Fig. 1.
Fig. 3 is structure chart of the present utility model.
Fig. 4 is B of the present utility model some enlarged drawing.
Fig. 5 is saw-tooth tool bit of the present utility model and toothholder connecting portion shape figure.
Fig. 6 is saw-tooth tool bit structure chart of the present utility model.
Detailed description of the invention
The utility model is further illustrated below in conjunction with accompanying drawing
With reference to accompanying drawing:
Embodiment 1 is described in the utility model cuts saw for cutting the dry of iron, comprise the saw bit matrix 1 with installing hole 12 and saw-tooth tool bit 2, the outer rim of described saw bit matrix 1 is circumferentially with sawtooth 11, described saw bit matrix between adjacent sawtooth 11 is arranged chip pocket 13 at the bottom of tooth, meeting of described sawtooth 11 is provided with protruding 141 to the toothholder 14 in direction cut, and the madial wall of described projection 141 and toothholder 141 knife face 142 of fitting forms draw-in groove 143 for embedding saw-tooth tool bit 2; Be provided with the breach 211 with protruding 141 matched in clearance bottom the rake face 21 of described saw-tooth tool bit 2, the bottom of described saw-tooth tool bit 2 embeds and is fixed in the draw-in groove 143 of toothholder 141, and described projection 141 is against described breach 211 place; The back of tooth 111 upper surface of described sawtooth 11 is provided with the pit 112 to installing hole 12 direction depression.
The longitudinal section of the breach 211 of described saw-tooth tool bit 2 is right-angled trapezium, and the upper bottom of right-angled trapezium is vertical direction, and the bottom of right-angled trapezium is positioned in the plane at saw-tooth tool bit 2 rake face 21 place.
Distance a between breach 211 madial wall and the rear knife face 22 of saw-tooth tool bit 2 is 1 ~ 1.2mm, and between breach 21 madial wall and protruding 141 madial walls, the width b in gap is 0.1 ~ 0.2mm; The width c of protruding 141 is 0.5 ~ 0.8mm, and the height d of protruding 141 is 0.3 ~ 0.5mm, and the angle α between breach 211 upper surface and horizontal plane is 10 ~ 20 °.
The back of tooth 111 does not install the drift angle of the side of saw-tooth tool bit with circular arc chamfering 113, and wherein the radius R 1 of circular arc is 1 ~ 2mm, and the central angle β that circular arc is corresponding is 65 ~ 75 °.
Described pit 112 is arc-shaped structure, and the radius R 2 of its pits circular arc is 2 ~ 3mm, and the central angle γ that pit circular arc is corresponding is 145 ~ 155 °.
Described saw-tooth tool bit 2 is welded on described toothholder 14.
Described saw bit matrix 1 distributes many lanyards 15, and described lanyard 15 is similar to damping curve, and every bar lanyard 15 is along the arrangement of saw bit matrix 1 radial direction.
The head end of lanyard 15 and the distance of installing hole 12 are greater than the distance of lanyard tail end and installing hole 12.
Content described in this description embodiment is only enumerating the way of realization that utility model is conceived; protection domain of the present utility model should not be regarded as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model also comprises those skilled in the art and conceives the equivalent technologies means that can expect according to the utility model.
Claims (8)
1. cut saw for cutting the dry of iron, comprise the saw bit matrix with installing hole and saw-tooth tool bit, the outer rim of described saw bit matrix is circumferentially with sawtooth, described saw bit matrix between adjacent sawtooth arranges chip pocket at the bottom of tooth, it is characterized in that: the toothholder in direction of meeting to cutting of described sawtooth is provided with projection, the madial wall of described projection and toothholder knife face of fitting forms draw-in groove for embedding saw-tooth tool bit; Be provided with the breach with protruding matched in clearance bottom the rake face of described saw-tooth tool bit, the bottom of described saw-tooth tool bit embeds and is fixed in the draw-in groove of toothholder, and described projection is against described indentation, there; The back of tooth upper surface of described sawtooth is provided with the pit to installing hole direction depression.
2. cut saw for cutting the dry of iron as claimed in claim 1, it is characterized in that: the longitudinal section of the breach of described saw-tooth tool bit is right-angled trapezium, the upper bottom of right-angled trapezium is vertical direction, and the bottom of right-angled trapezium is positioned in the plane at saw-tooth tool bit rake face place.
3. cut saw for cutting the dry of iron as claimed in claim 2, it is characterized in that: the distance a between inner side wall and the rear knife face of saw-tooth tool bit is 1 ~ 1.2mm, between inner side wall and protruding madial wall, the width b in gap is 0.1 ~ 0.2mm; Protruding width c is 0.5 ~ 0.8mm, and protruding height d is 0.3 ~ 0.5mm, and the angle α between breach upper surface and horizontal plane is 10 ~ 20 °.
4. cut saw for cutting the dry of iron as claimed in claim 1, it is characterized in that: the back of tooth does not install the drift angle of the side of saw-tooth tool bit with circular arc chamfering, wherein the radius R 1 of circular arc is 1 ~ 2mm, and the central angle β that circular arc is corresponding is 65 ~ 75 °.
5. cut saw for cutting the dry of iron as claimed in claim 1, it is characterized in that: described pit is arc-shaped structure, the radius R 2 of its pits circular arc is 2 ~ 3mm, and the central angle γ that pit circular arc is corresponding is 145 ~ 155 °.
6. cutting saw for cutting the dry of iron as claimed in claim 1, it is characterized in that: described saw-tooth tool bit is welded on described toothholder.
7. as described in claim 1 ~ 6 any one claim, cutting saw for cutting the dry of iron, it is characterized in that: described saw bit matrix distributes many lanyards, and described lanyard likeness in form damping curve, every bar lanyard is along the arrangement of saw bit matrix radial direction.
8. cutting saw for cutting the dry of iron as claimed in claim 7, it is characterized in that: the head end of lanyard and the distance of installing hole are greater than the distance of lanyard tail end and installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677964.XU CN204997156U (en) | 2015-09-02 | 2015-09-02 | A do and cut saw for cutting iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677964.XU CN204997156U (en) | 2015-09-02 | 2015-09-02 | A do and cut saw for cutting iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204997156U true CN204997156U (en) | 2016-01-27 |
Family
ID=55154061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520677964.XU Expired - Fee Related CN204997156U (en) | 2015-09-02 | 2015-09-02 | A do and cut saw for cutting iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204997156U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10532412B2 (en) | 2016-09-23 | 2020-01-14 | Milwaukee Electric Tool Corporation | Hole saw arbor assembly |
| US10730119B2 (en) | 2017-01-06 | 2020-08-04 | Milwaukee Electric Tool Corporation | Hole saw |
| USD965653S1 (en) | 2017-08-15 | 2022-10-04 | Milwaukee Electric Tool Corporation | Hole saw |
-
2015
- 2015-09-02 CN CN201520677964.XU patent/CN204997156U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10532412B2 (en) | 2016-09-23 | 2020-01-14 | Milwaukee Electric Tool Corporation | Hole saw arbor assembly |
| US11154940B2 (en) | 2016-09-23 | 2021-10-26 | Milwaukee Electric Tool Corporation | Hole saw arbor assembly |
| US10730119B2 (en) | 2017-01-06 | 2020-08-04 | Milwaukee Electric Tool Corporation | Hole saw |
| US11559840B2 (en) | 2017-01-06 | 2023-01-24 | Milwaukee Electric Tool Corporation | Hole saw |
| USD965653S1 (en) | 2017-08-15 | 2022-10-04 | Milwaukee Electric Tool Corporation | Hole saw |
| USD973733S1 (en) | 2017-08-15 | 2022-12-27 | Milwaukee Electric Tool Corporation | Hole saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20210902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |