CN203390305U - Double-anterior angle saw web - Google Patents
Double-anterior angle saw web Download PDFInfo
- Publication number
- CN203390305U CN203390305U CN201320405557.4U CN201320405557U CN203390305U CN 203390305 U CN203390305 U CN 203390305U CN 201320405557 U CN201320405557 U CN 201320405557U CN 203390305 U CN203390305 U CN 203390305U
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- CN
- China
- Prior art keywords
- anterior angle
- sheet base
- saw web
- tooth
- anterior
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a double-anterior angle saw web. The double-anterior angle saw web comprises a saw web base body and sawteeth which are arranged on the outer periphery of the saw web base body at intervals, wherein a center hole is formed at the middle part of the saw web base body; each sawtooth comprises a tooth back and a tool bit; a chip pocket is arranged between the tooth backs; the front end face of the tool bit comprises an upper bevel and a lower bevel; and an upper anterior angle formed by the upper bevel and the radial direction of the saw web base body is smaller than a lower anterior angle formed by the lower bevel and the radial direction of the saw web base body. According to the utility model, the tool bit structure with the double anterior angles is used, the cutting resistance can be reduced relative to a big lower anterior, and the grinding area of the tool bit can be reduced relative to a small upper anterior; so that the production cost is reduced; the production efficiency of the saw web is improved; furthermore, the cutting resistance can be reduced; the cutting edge intensity of the tool bit is improved, and the service life of the saw web is prolonged.
Description
Technical field
The utility model relates to a kind of hardware & tools, refers in particular to a kind of pair of anterior angle saw blade.
Background technology
At present, the more and more aobvious variation of saw blade, has a wide range of applications at aspects such as cutting stone material, timber, pottery, alloy ornament materials.Hard alloy saw blade is the conventional cutlery of production and processing, correct reasonably select hard alloy saw blade for improving the quality of products, shorten the process-cycle, reduce processing cost and have great importance.
Traditional saw blade need to grind the whole front end face of cutter head when manufacturing, and the front end face of cutter head is single ramp, the sheet base of front end face and saw blade radially only have an angle, anterior angle, is commonly referred to as anterior angle a.
Utility model content
In order to solve the high problem of saw blade complex process, production cost of traditional handicraft, the utility model proposes a kind of pair of anterior angle saw blade, can reduce the abradant surface area of cutter head, reduce production costs, improve saw blade production efficiency, meanwhile, can reduce cutting resistance, and improve cutter edge intensity, extend saw life.
The technical scheme that the utility model adopts is: a kind of pair of anterior angle saw blade, comprise sheet base and be disposed on the sawtooth on sheet base excircle, the middle part of sheet base is provided with centre bore, described sawtooth comprises the back of tooth and cutter head, between the described back of tooth, be provided with chip pocket, the front end face of described cutter head is divided into ramp and lower inclined plane, and described ramp and the upper anterior angle of radially pressing from both sides of sheet base are less than the lower anterior angle of radially pressing from both sides of lower inclined plane and sheet base.The utility model carries out special non-whole milled processed to the front end face of cutter head, make tradition be changed to upper and lower Liang Ge inclined-plane at an angle for the front end face of single ramp, the angle radially (anterior angle b) of ramp and sheet base is less than (anterior angle a), the i.e. hook angle structure of angle radially of lower inclined plane and sheet base.
As preferably, described lower inclined plane is more than or equal to 5 ° with ramp with the difference of the upper anterior angle of radially pressing from both sides of sheet base with the lower anterior angle of radially pressing from both sides of sheet base.The difference of two anterior angles is not less than 5 °, when reducing cutting resistance, has improved again the intensity of cutting edge, has extended the life-span of saw blade.
As preferably, on the excircle of described base, evenly the radial punch to sheet base has several expansion slots, and described expansion slot inner side is connected with louvre, and the outside port of expansion slot is on chip pocket.The impact of thermal stress on saw blade when saw blade cutting can effectively be alleviated or offset to expansion slot.
As preferably, the root Yu Pianji intersection of the described back of tooth is for seamlessly transitting.
As preferably, the position that described base is connected with centre bore is provided with several holddown grooves, and described holddown groove and centre bore are connected as a single entity.Holddown groove is for location and transmitting torque.
The beneficial effects of the utility model are: relatively large lower anterior angle can reduce cutting resistance, relatively little upper anterior angle can reduce the abradant surface area of cutter head, reduce production costs, improve saw blade production efficiency, simultaneously, can reduce cutting resistance, and improve cutter edge intensity, extend saw life.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the structure for amplifying schematic diagram at A place in Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram at B place in Fig. 2.
In figure, 1-sheet base, the 2-back of tooth, 3-cutter head, 4-centre bore, 5-expansion slot, 6-louvre.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1
As depicted in figs. 1 and 2, a kind of pair of anterior angle saw blade, comprises sheet base 1 and is disposed on the sawtooth on sheet base 1 excircle, the middle part of sheet base 1 is provided with centre bore 4, sawtooth comprises the back of tooth 2 and cutter head 3, between the back of tooth 2, is provided with chip pocket, and the root of the back of tooth 2 and sheet base 1 intersection are for seamlessly transitting.
As shown in Figure 3, the front end face of cutter head 3 is divided into ramp and lower inclined plane, and ramp is 20 ° with the upper anterior angle b radially pressing from both sides of sheet base, and lower inclined plane is 30 ° with the lower anterior angle a radially pressing from both sides of sheet base.
On the excircle of sheet base 1, evenly the radial punch to sheet base has four expansion slots 5, and each expansion slot 5 inner side is connected with a louvre 6, and the outside port of expansion slot 5 is opened on chip pocket.The impact of thermal stress on saw blade when saw blade cutting can effectively be alleviated or offset to expansion slot 5.
The position that sheet base 1 is connected with centre bore 4 is provided with two holddown grooves that are symmetrical arranged and are connected as a single entity with centre bore, for location and transmitting torque.
In embodiment 2, the part of the close back of tooth 2 of sheet base 1 also even circle distribution has four louvres, is beneficial to heat radiation.
Above embodiment, is the preferred specific embodiment of the utility model, and common variation and replacement that those skilled in the art carry out within the scope of technical solutions of the utility model are included in protection domain of the present utility model.
Claims (6)
1. a two anterior angle saw blade, it is characterized in that: comprise sheet base and be disposed on the sawtooth on sheet base excircle, the middle part of sheet base is provided with centre bore, described sawtooth comprises the back of tooth and cutter head, between the described back of tooth, be provided with chip pocket, the front end face of described cutter head is divided into ramp and lower inclined plane, and described ramp and the upper anterior angle of radially pressing from both sides of sheet base are less than the lower anterior angle of radially pressing from both sides of lower inclined plane and sheet base.
2. according to claim 1 pair of anterior angle saw blade, is characterized in that: described lower inclined plane is more than or equal to 5 ° with ramp with the difference of the upper anterior angle of radially pressing from both sides of sheet base with the lower anterior angle of radially pressing from both sides of sheet base.
3. according to claim 1 pair of anterior angle saw blade, is characterized in that: on the excircle of described base, evenly the radial punch to sheet base has several expansion slots, and described expansion slot inner side is connected with louvre, and the outside port of expansion slot is on chip pocket.
4. according to claim 1 pair of anterior angle saw blade, is characterized in that: the root Yu Pianji intersection of the described back of tooth is for seamlessly transitting.
5. according to the two anterior angle saw blades described in claim 1 or 3, it is characterized in that: the position that described base is connected with centre bore is provided with several holddown grooves, and described holddown groove and centre bore are connected as a single entity.
6. according to the two anterior angle saw blades described in claim 1 or 3, it is characterized in that: the even circle distribution of part of the close back of tooth of described base has several louvres.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320405557.4U CN203390305U (en) | 2013-07-09 | 2013-07-09 | Double-anterior angle saw web |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320405557.4U CN203390305U (en) | 2013-07-09 | 2013-07-09 | Double-anterior angle saw web |
Publications (1)
Publication Number | Publication Date |
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CN203390305U true CN203390305U (en) | 2014-01-15 |
Family
ID=49901867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201320405557.4U Expired - Fee Related CN203390305U (en) | 2013-07-09 | 2013-07-09 | Double-anterior angle saw web |
Country Status (1)
Country | Link |
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CN (1) | CN203390305U (en) |
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2013
- 2013-07-09 CN CN201320405557.4U patent/CN203390305U/en not_active Expired - Fee Related
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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: 20140115 Termination date: 20170709 |