CN210648803U - Cutter head with improved structure - Google Patents
Cutter head with improved structure Download PDFInfo
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- CN210648803U CN210648803U CN201921729261.1U CN201921729261U CN210648803U CN 210648803 U CN210648803 U CN 210648803U CN 201921729261 U CN201921729261 U CN 201921729261U CN 210648803 U CN210648803 U CN 210648803U
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- face
- cutter
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- cutter head
- dodging
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- 238000007493 shaping process Methods 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a tool bit of improvement structure belongs to mechanical technical field. It has solved the current not good problem in tool bit life-span. This tool bit of improvement structure is including being massive body, the body is by the rake face, the back location side, the top surface, the location bottom surface, left surface and right flank constitute, the rake face comprises knife face one and knife face two that all are the slope setting and the circular arc chip removal face that is used for connecting knife face one and knife face two, and knife face two is located knife face one and fixes a position between the bottom surface, the junction shaping of knife face one and top surface has the face one of dodging that is strip and slope setting, the both ends of dodging face one extend to left surface and right flank respectively, the inclination of dodging face one is greater than the inclination of knife face one, and the contained angle of dodging between face one and the knife face one is the obtuse angle. The tool bit of this improvement structure life-span is longer.
Description
Technical Field
The utility model belongs to the technical field of machinery, a tool bit, especially a tool bit of improvement structure is related to.
Background
With the wide application of ironer cold saws in the steel cutting market in recent years, the traditional band saw is in the trend of being replaced by the cold saw for cutting steel, and with the high-speed development of the ironer cold saws, the requirements on the cutting efficiency, the cutting precision and the like of the cold saw are higher and higher. At present, the saw blade produced in China has no back angle, the contact surface between the upper cutter head of the saw blade and a workpiece is large in the process of cutting steel, the friction between the teeth of the saw blade and the workpiece is increased to generate a large amount of cutting scrap heat, the local temperature is rapidly raised in a short time, and therefore the surface of the cut workpiece is burnt out, and the hardness of the upper cutter head of the teeth of the saw blade is changed to be squeezed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having above-mentioned problem to current technique, having proposed the tool bit of improvement structure, the technical problem of solution is how to prolong life-span.
The purpose of the utility model can be realized by the following technical proposal: the cutter head of improvement structure, including being massive body, the body comprises rake face, back location side, top surface, location bottom surface, left surface and right flank, and the rake face comprises rake face one and knife face two and the circular arc chip removal face that is used for connecting knife face one and knife face two that all are the slope setting, and knife face two is located knife face one and fixes a position between the bottom surface, its characterized in that, the junction shaping of knife face one and top surface have and be strip and slope the face of dodging that sets up one, the both ends of dodging face one extend to left surface and right flank respectively, the inclination of dodging face one is greater than the inclination of knife face one, and the contained angle of dodging between face one and the knife face one is the obtuse angle.
The first strip-shaped avoiding surface is arranged at the joint of the first knife surface and the top surface, the inclined angle of the first avoiding surface is larger than that of the first knife surface, so that the clearance avoiding effect of the body in the width direction is achieved in the steel cutting process, the friction between the tool bit and the surface of a workpiece is effectively reduced, the advantage of the tool bit in cutting is enabled to be exerted to the highest point, and the cutting precision and the service life of the tool bit are prolonged.
In foretell tool bit of improvement structure, the junction shaping of left surface and top surface have to be the strip and the slope sets up dodge the face two, dodge the both ends of face two and extend to the back positioning side respectively and dodge face one, and dodge the contained angle between face two and the top surface and be the obtuse angle.
In the cutter head with the improved structure, the width of the avoiding surface II is gradually reduced from the avoiding surface I to the rear positioning side surface.
In foretell tool bit of improvement structure, the junction shaping of right flank and top surface have and be the strip and the slope sets up dodge the face three, dodge the both ends of face three and extend to the back positioning side respectively and dodge the face one, and dodge the contained angle between face three and the top surface and be the obtuse angle.
In the cutter head with the improved structure, the width of the avoiding surface III is gradually reduced from the avoiding surface I to the rear positioning side surface.
Compared with the prior art, the cutter head with the improved structure is provided with the strip-shaped avoidance surface I, the avoidance surface II and the avoidance surface III, so that the avoidance effect of the width and the thickness of the body in the steel cutting process is achieved, the friction between the cutter head and the surface of a workpiece is effectively reduced, the advantage of the cutter head in the cutting process is enabled to be exerted to the highest point, and the cutting precision and the service life of the cutter head are prolonged.
Drawings
Fig. 1 is a perspective view of the improved structure of the cutter head.
Fig. 2 is a schematic perspective view of the improved structure of the cutter head in another direction.
In the figure, 1, a body; 1a, a rake face; 1a1, knife face I; 1a2 and a second blade surface; 1a3, arc chip surface; 1b, a rear positioning side surface; 1c, a top surface; 1d, positioning the bottom surface; 1e, left side; 1f, right lateral surface; 1g, avoiding a first surface; 1h, avoiding a second surface; 1i and a third avoidance surface.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the cutting head of the improved structure includes a block-shaped body 1, and the body 1 includes a rake face 1a, a rear positioning side face 1b, a top face 1c, a positioning bottom face 1d, a left side face 1e, and a right side face 1 f. The rake face 1a is composed of a first rake face 1a1, a second rake face 1a2 and an arc chip removal face 1a3 for connecting the first rake face 1a1 and the second rake face 1a2, wherein the first rake face 1a1 and the second rake face 1a2 are all obliquely arranged, and the second rake face 1a2 is located between the first rake face 1a1 and the positioning bottom face 1 d.
Specifically, a strip-shaped and obliquely-arranged first avoidance surface 1g is formed at the joint of the first knife surface 1a1 and the top surface 1c, two ends of the first avoidance surface 1g extend to the left side surface 1e and the right side surface 1f respectively, the inclination angle of the first avoidance surface 1g is larger than that of the first knife surface 1a1, and the included angle between the first avoidance surface 1g and the first knife surface 1a1 is an obtuse angle. The junction shaping of left surface 1e and top surface 1c has the two 1h of dodging that are strip and slope setting, and the both ends of dodging two 1h extend to back location side 1b and dodge a 1g respectively, and dodge the contained angle between two 1h and the top surface 1c and be the obtuse angle, and the preferred width of dodging two 1h diminishes from dodging a 1g to back location side 1b direction gradually. The junction shaping of right flank 1f and top surface 1c has the face three 1i of dodging that is strip and slope setting, and the both ends of the face three 1i of dodging extend to back location side 1b and dodge a 1g respectively, and dodge the contained angle between face three 1i and the top surface 1c and be the obtuse angle, and the preferred width of dodging face three 1i diminishes gradually from dodging a 1g to back location side 1b direction.
Through setting up and all being banding dodge face one 1g, dodge two 1h and dodge three 1i of face to play the effect of keeping away of these two directions of body 1 width and thickness at the in-process of steel cutting, effectively reduce the friction on tool bit and work piece surface, make the tool bit advantage play the peak in the cutting, thereby extension tool bit cutting accuracy and life-span.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The cutter head with the improved structure comprises a blocky body (1), wherein the body (1) consists of a front cutter face (1a), a rear positioning side face (1b), a top face (1c), a positioning bottom face (1d), a left side face (1e) and a right side face (1f), the front cutter face (1a) consists of a cutter face I (1a1) and a cutter face II (1a2) which are obliquely arranged, and an arc chip removal face (1a3) for connecting the cutter face I (1a1) and the cutter face II (1a2), the cutter face II (1a2) is positioned between the cutter face I (1a1) and the positioning bottom face (1d), the cutter head is characterized in that a strip-shaped obliquely arranged avoidance face I (1g) is formed at the joint of the cutter face I (1a1) and the top face (1c), two ends of the avoidance face I (1g) respectively extend to the left side face (1e) and the right side face (1f), and the inclination angle of the avoidance face I (1g) is larger than that the inclination angle of the cutter face I (1a1, and the included angle between the first avoidance surface (1g) and the first cutter surface (1a1) is an obtuse angle.
2. The cutter head with the improved structure according to claim 1, wherein a strip-shaped and obliquely-arranged avoiding surface II (1h) is formed at the joint of the left side surface (1e) and the top surface (1c), two ends of the avoiding surface II (1h) respectively extend to the rear positioning side surface (1b) and the avoiding surface I (1g), and an included angle between the avoiding surface II (1h) and the top surface (1c) is an obtuse angle.
3. The cutter head of claim 2, wherein the width of the avoiding surface two (1h) is gradually reduced from the avoiding surface one (1g) to the rear positioning side surface (1 b).
4. The cutter head with the improved structure according to claim 1, wherein a strip-shaped and obliquely-arranged avoidance surface III (1i) is formed at the joint of the right side surface (1f) and the top surface (1c), two ends of the avoidance surface III (1i) respectively extend to the rear positioning side surface (1b) and the avoidance surface I (1g), and an included angle between the avoidance surface III (1i) and the top surface (1c) is an obtuse angle.
5. The cutter head of claim 1, wherein the width of the relief surface three (1i) is gradually smaller from the relief surface one (1g) toward the rear positioning side surface (1 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921729261.1U CN210648803U (en) | 2019-10-15 | 2019-10-15 | Cutter head with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921729261.1U CN210648803U (en) | 2019-10-15 | 2019-10-15 | Cutter head with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210648803U true CN210648803U (en) | 2020-06-02 |
Family
ID=70836119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921729261.1U Active CN210648803U (en) | 2019-10-15 | 2019-10-15 | Cutter head with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210648803U (en) |
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2019
- 2019-10-15 CN CN201921729261.1U patent/CN210648803U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Improved structure of the cutter head Effective date of registration: 20220912 Granted publication date: 20200602 Pledgee: Zhejiang Wenling Rural Commercial Bank Co.,Ltd. Pledgor: Ehrman precision tools (Zhejiang) Co.,Ltd. Registration number: Y2022330002178 |