CN219966473U - Cam locomotive lathe cutter with keep away position structure - Google Patents
Cam locomotive lathe cutter with keep away position structure Download PDFInfo
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- CN219966473U CN219966473U CN202321040149.3U CN202321040149U CN219966473U CN 219966473 U CN219966473 U CN 219966473U CN 202321040149 U CN202321040149 U CN 202321040149U CN 219966473 U CN219966473 U CN 219966473U
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- clearance
- inclined plane
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 46
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to the technical field of cutters, in particular to a cam locomotive lathe cutter with a clearance structure, which comprises a cutter bar and cutter grains, wherein the cross section of each cutter grain is parallelogram, two acute angle positions of the corresponding cross section of each cutter grain are respectively provided with a cutting edge, the side wall of each cutter grain is an inclined plane, and the size corresponding to each cross section of each cutter grain from top to bottom is gradually reduced, so that the cutting edge is formed at the upper end of each cutter grain; can realize the position effect of keeping away of cutter arbor in the maximum, and adopt the cutter grain lateral part to do the setting of inclined plane, step structure's first inner wall and second inner wall also slope and set up to support tightly the back at cutter grain and step structure and pass through the screw fixation, because the inclined plane makes the area of contact of cutter arbor and cutter grain bigger, and the setting on inclined plane cooperates the fixed of screw, can restrict each other in the atress, thereby reach more firm fixed effect.
Description
Technical Field
The utility model relates to the technical field of cutters, in particular to a cam locomotive lathe cutter with a avoidance structure.
Background
The lathe tool is one of very important parts in lathe machining, and is used for machining excircle, inner hole, end face, thread, turning groove, etc., and the lathe tool may be divided into integral lathe tool, welding lathe tool, clamping lathe tool, indexable lathe tool, forming lathe tool, etc. the indexable lathe tool has wide application, and has high proportion.
The existing indexable turning tool can prevent the cutting edges which do not work from being blocked if the number of the cutting edges arranged on the cutter blade is large, so that the cutting quality of the turning tool is affected, therefore, the number of the cutting edges of the general indexable cutting tool is only two, one of the cutting edges is exposed out, the other cutting edge is embedded into a fixing groove of a cutter bar, but the increase of the number of the cutting edges also affects the firmness of fixing the cutter blade, therefore, when the cutter blade is installed, a lathe cutter disclosed by an authorized publication number of CN217166527U is designed in the prior art, a positioning column is aligned with a positioning hole and then inserted into the positioning hole, the cutter blade is installed in a first installation groove, the cutter blade is clamped on a cutter head, then the cutter blade is installed on a second installation groove of the cutter blade, the cutter blade is fixed on the cutter blade by using a first locking screw and 2 second locking screws, the cutter blade is fixed on the cutter blade, the installation structure is simple, the installation firmness of the cutter blade and the cutter blade is convenient to replace, and the service life is long. In addition, as the lathe tool disclosed in the grant publication No. CN104772481A is provided with the tool handle, the tool holder is arranged at the end part of the tool handle, the surface of the tool holder is provided with the mounting groove, and the blade is mounted in the mounting groove, so that the problem that the traditional integrated tool is not easy to detach and replace is solved; the protection plates are arranged on the two sides of the tool apron, the blades extending out of the tool apron are effectively protected by the protection plates, and the problem that the blades are damaged easily due to improper operation or too high hardness of the cut object due to the fact that the traditional turning tool is exposed outside the tool apron is solved.
However, in order to ensure the firmness of the blade, the conventional turning tool is basically required to be provided with a plurality of fixing parts between the blade and the cutter bar, which leads to improvement of overall complexity, occupies space to a certain extent, and cannot achieve good avoidance design. There is a need for an improved solution to the above-mentioned problems.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.
The cam locomotive lathe cutter with the avoidance structure comprises a cutter bar and cutter grains, wherein the cross section of each cutter grain is parallelogram, two acute angle positions of the corresponding cross section of each cutter grain are provided with cutting edges, the side wall of each cutter grain is an inclined plane, so that the corresponding size of each cross section of each cutter grain from top to bottom is gradually reduced, and the cutting edges are formed at the upper end of each cutter grain;
the front end of the cutter bar is provided with a step structure for fixing the cutter particles, the step structure is provided with a first inner wall and a second inner wall which are obliquely arranged, the upper end edge of the first inner wall is parallel to the upper end edge of one side of the cutter bar, the cutter particles are connected to the step structure by screws, two sides corresponding to one cutter blade are respectively in tight fit with the first inner wall and the second inner wall, and the cutter particles are exposed forwards in front of the cutter bar corresponding to the other cutter blade; the front end of the cutter bar is also provided with a first avoidance inclined plane in a cutting and forming mode, and the first avoidance inclined plane is in engagement fit with one side face of the cutter grain.
Preferably, the upper end face of the cutter grain is flush with the upper end face of the cutter bar, the position of the cutter grain corresponding to the cutting edge is cut off and provided with a toughening structure, and the cutting edge is suspended in the step structure through the toughening structure.
Preferably, the toughening structure comprises a straight-face notch part cut off along one side of the cutter grain, and the cutting edge in the step structure is matched with the first inner wall in a clearance way through the straight-face notch part.
Preferably, the toughening structure further comprises an inclined plane notch part positioned at the upper end of the cutting edge, the cutting edge positioned in the step structure is lower than the upper end face of the cutter bar through the inclined plane notch part, the inclined plane notch part is formed by cutting downwards in an inclined mode along the upper end edge of the first inner wall, which is in abutting fit with the cutter grain, of the side face of the second inner wall, which is in abutting fit with the cutter grain, and the edge between the straight plane notch part and the inclined plane notch part forms a cutting edge of the cutting edge.
Preferably, the toughening structure further comprises a sharp removing surface cut and formed along the end of the blade, and the end of the toughening structure passes through the sharp removing surface to form two tool tips.
Preferably, the cutter bar is further provided with a drain groove in butt joint with the step structure, the drain groove is in butt joint with the connection position of the first inner wall and the second inner wall, and one side of the drain groove is communicated with one side of the cutter bar.
Preferably, the knife grain is positioned at the lower end of the knife edge and is also cut off and provided with a first clearance part.
Preferably, the lower end of the cutter bar is also cut off and provided with a second avoidance inclined plane, and the front end of the cutter bar forms a flat surface through the first avoidance inclined plane, the second avoidance inclined plane and the step structure.
Preferably, the first avoidance inclined plane forms an included angle of 35 degrees with the axis in the length direction of the cutter bar, and the second avoidance inclined plane forms an included angle of 20 degrees with the axis in the length direction of the cutter bar.
Preferably, a screw is arranged at the middle position of the cutter grain, a threaded hole matched with the screw is arranged on the step structure, and the cutter grain is fixed on the step structure through threaded connection of the screw and the threaded hole.
Compared with the prior art, the utility model has the beneficial effects that:
through setting up the cutter grain into the cross section and be parallelogram's structure, fix the one end at the cutter arbor with the cutter grain, and make one of them side of cutter grain exposure cutting edge one section flush each other with one side of cutter arbor, perhaps parallel protrusion is in this side of cutter arbor, then carry out the excision formula setting with the cutter arbor opposite side, make the opposite side of cutter arbor also can flush with the other side of cutter grain, through this setting, can realize the position effect of keeping away of cutter arbor to the maximum extent, and adopt the cutter grain lateral part to do the setting of inclined plane, step structure's first inner wall and second inner wall also slope set up, and support tightly the back at cutter grain and step structure and pass through the screw fixation, because the area of contact of inclined plane messenger cutter arbor and cutter grain is bigger, and the setting on inclined plane cooperates the fixed of screw, can restrict each other on the atress, thereby reach more firm fixed effect.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of the structure of the upper end face of the present utility model;
FIG. 2 is a schematic view of the front face of the present utility model;
FIG. 3 is a schematic view of a side structure of the present utility model;
FIG. 4 is a schematic view of the structure of the tool bar of the present utility model;
fig. 5 is a schematic view of the structure of the cutter grain in the present utility model.
Reference numerals and names in the drawings are as follows:
the cutter bar 10, the step structure 11, the first inner wall 12, the second inner wall 13, the first avoidance slope 14, the drain groove 15, the second avoidance slope 16, the flat surface 17, the threaded hole 18, the cutter grain 20, the first avoidance part 21, the screw 22, the blade 30, the cutting edge 31, the toughening structure 40, the straight surface notch 41, the inclined surface notch 42 and the tip removing surface 43.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, in an embodiment of the present utility model, a cam lathe tool with a clearance structure includes a tool bar 10 and a tool grain 20, wherein the cross section of the tool grain 20 is a parallelogram, two acute angle positions of the tool grain 20 corresponding to the cross section are both provided with a cutting edge 30, the side wall of the tool grain 20 is an inclined plane, so that the size corresponding to each cross section of the tool grain 20 from top to bottom is gradually reduced, and the cutting edge 30 is formed at the upper end of the tool grain 20;
the front end of the cutter bar 10 is provided with a step structure 11 for fixing the cutter particles 20, the step structure 11 is provided with a first inner wall 12 and a second inner wall 13 which are obliquely arranged, the upper end edge of the first inner wall 12 is parallel to the upper end edge of one side of the cutter bar 10, the cutter particles 20 are connected to the step structure 11 through screws 22, two sides of the cutter particles 20 corresponding to one of the cutter blades 30 are respectively in tight fit with the first inner wall 12 and the second inner wall 13, and the cutter particles 20 corresponding to the other cutter blade 30 are exposed forwards in front of the cutter bar 10; the front end of the cutter bar 10 is also cut and formed with a first avoidance slope 14, and the first avoidance slope 14 is engaged and matched with one side face of the cutter grain 20.
The utility model provides an indexable turning tool structure which is mainly applied to a cam lathe, and aims at the problems that the number of cutters on the cam lathe is large, and the matching compactness among the cutters is high, so that the design of a cutter avoidance structure is optimized; through setting up the cutter grain 20 to the structure that the cross section is parallelogram, fix the cutter grain 20 in the one end of cutter arbor 10, and make one of them side of cutter grain 20 exposing one section of cutting edge 30 flush each other with one side of cutter arbor 10, or parallel protrusion is in this side of cutter arbor 10, then carry out the excision setting with the cutter arbor 10 opposite side, make the opposite side of cutter arbor 10 also can flush with the other side of cutter grain 20, through this setting, can realize the space effect of cutter arbor 10 to the maximum extent, and adopt the cutter grain 20 lateral part to make the setting of inclined plane, the first inner wall 12 and the second inner wall 13 of step structure 11 also slope setting, and fix through screw 22 after cutter grain 20 and step structure 11 support tightly, because the inclined plane makes the area of contact of cutter arbor 10 and cutter grain 20 bigger, and the setting on inclined plane cooperates the fixing of screw 22, can restrict each other on the atress, thereby reach more firm fixed effect.
Referring to fig. 2, 3 and 5, in order to ensure the structural integrity of the cooperation of the cutter grain 20 and the cutter bar 10, the upper end face of the cutter grain 20 and the upper end face of the cutter bar 10 are flush with each other, in order to improve the sharpness of the operation of the cutter grain 20, and to ensure that the cutting edge 30 disposed inside the step structure 11 on the cutter grain 20 will not abut against the step structure 11, thereby causing abrasion and other conditions affecting the sharpness of the cutting edge 30, and also in order to prevent the cutting edge 30 from being scraped when the cutter bar 10 is too protruded to cause a user, the position of the cutter grain 20 corresponding to the cutting edge 30 is cut and provided with a toughening structure 40, and the cutting edge 30 is suspended in the step structure 11 through the toughening structure 40.
Based on the arrangement of the toughening structure 40, the toughening structure comprises a straight surface notch 41, an inclined surface notch 42 and a tip removing surface 43, specifically, the straight surface notch 41 is cut along one side of the cutter grain 20, so that the cutter blade 30 in the step structure 11 is in clearance fit with the first inner wall 12 through the straight surface notch 41; the inclined plane notch part 42 is positioned at the upper end of the blade 30, the blade 30 positioned in the step structure 11 is lower than the upper end surface of the cutter bar 10 through the inclined plane notch part 42, the inclined plane notch part 42 is formed by cutting downwards in an inclined way along the upper end edge of the cutter grain 20, which is in tight fit with the first inner wall 12, towards the side surface of the cutter grain 20, which is in tight fit with the second inner wall 13, by the arrangement, the included angle between the straight plane notch part 41 and the inclined plane notch part 42 is reduced, and is smaller than 90 degrees, so that the edge between the straight plane notch part 41 and the inclined plane notch part 42 forms the cutting edge 31 of the blade 30; the edge removing surface 43 is disposed at the end of the blade 30, specifically, the edge of the edge 30 is cut to form the edge removing surface 43, and the edge of the toughening structure 40 forms two knife points through the edge removing surface 43, so as to reduce the sharpness of the edge 30, i.e. prevent the edge 30 from being too fragile; thereby improving cutting strength and life of the blade 30.
Since one of the cutting edges 30 of the indexable insert 20 is disposed inside the stepped structure 11, if more chips are generated during cutting, they are easily accumulated in the stepped structure 11 at a position corresponding to between the first inner wall 12 and the second inner wall 13, so that damage is generated to the cutting edge 30 disposed inside the stepped structure 11 to some extent, the relief groove 15 abutting against the stepped structure 11 is further provided on the cutter bar 10, the junction of the relief groove 15 and the first inner wall 12 and the second inner wall 13 is abutting against, and one side of the relief groove 15 is penetrated through one side of the cutter bar 10.
Referring to fig. 1-3, the cutter 20 is further provided with a first clearance portion 21 at the lower end of the blade 30, so as to further improve the clearance effect of the cutter 20 during cutting operation; in addition, the lower end of the cutter bar 10 is further cut off and provided with a second avoidance inclined plane 16, the front end of the cutter bar 10 forms a flat surface 17 through the first avoidance inclined plane 14, the second avoidance inclined plane 16 and the step structure 11, the cutter bar 10 can be avoided to the greatest extent under the premise of ensuring the firmness of the fixed granules 20, and an included angle of 35 degrees is formed between the first avoidance inclined plane 14 and an axis in the length direction of the cutter bar 10, and an included angle of 20 degrees is formed between the second avoidance inclined plane 16 and the axis in the length direction of the cutter bar 10, referring to fig. 1.
Referring to fig. 4-5, a screw 22 is disposed at a middle position of the cutter 20, a threaded hole 18 matching with the screw 22 is disposed on the step structure 11, the cutter 20 is fixed on the step structure 11 through threaded connection between the screw 22 and the threaded hole 18, and the cutter 20 is respectively abutted against the cutter 20 by the first inner wall 12 and the second inner wall 13 in an inclined plane, so that the firmness of fixing the cutter 20 can be ensured by only disposing one screw 22 on the cutter 20.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. The cam locomotive lathe cutter with the avoidance structure is characterized by comprising a cutter bar and cutter grains, wherein the cross sections of the cutter grains are parallelograms, two acute angle positions of the cutter grains corresponding to the cross sections are provided with cutting edges, the side walls of the cutter grains are inclined planes, and the size corresponding to each cross section of the cutter grains from top to bottom is gradually reduced, so that the cutting edges are formed at the upper ends of the cutter grains;
the front end of the cutter bar is provided with a step structure for fixing the cutter particles, the step structure is provided with a first inner wall and a second inner wall which are obliquely arranged, the upper end edge of the first inner wall is parallel to the upper end edge of one side of the cutter bar, the cutter particles are connected to the step structure by screws, two sides corresponding to one cutter blade are respectively in tight fit with the first inner wall and the second inner wall, and the cutter particles are exposed forwards in front of the cutter bar corresponding to the other cutter blade; the front end of the cutter bar is also provided with a first avoidance inclined plane in a cutting and forming mode, and the first avoidance inclined plane is in engagement fit with one side face of the cutter grain.
2. The cam lathe tool with a clearance structure according to claim 1, wherein the upper end face of the cutter grain is flush with the upper end face of the cutter bar, the cutter grain is cut at a position corresponding to the cutting edge and provided with a toughness improving structure, and the cutting edge is suspended in the step structure through the toughness improving structure.
3. The cam car bed knife with the avoidance structure according to claim 2, wherein the toughening structure comprises a straight-face notch cut-out arranged along one side of the knife grain, and the knife edge in the step structure is in avoidance fit with the first inner wall through the straight-face notch.
4. The cam lathe tool with a clearance structure of claim 3, wherein the toughening structure further comprises a bevel notch portion positioned at the upper end of the blade, the blade positioned in the step structure is lower than the upper end face of the cutter bar through the bevel notch portion, the bevel notch portion is formed by cutting down the upper end edge of the first inner wall of the abutting fit of the cutter grain towards the side face of the second inner wall of the abutting fit of the cutter grain in an inclined manner, and the edge between the straight surface notch portion and the bevel notch portion forms a cutting edge of the blade.
5. The cam car bed knife with a clearance structure of claim 4, wherein the toughening structure further comprises a de-sharpening surface cut along the edge end, the end of the toughening structure passing through the de-sharpening surface to form two knife tips.
6. The cam lathe tool with a clearance structure according to any one of claims 1 to 5, further comprising a drain groove abutting against the step structure, wherein the drain groove abuts against a junction of the first inner wall and the second inner wall, and one side of the drain groove penetrates through one side of the cutter bar.
7. The cam car bed cutter with a clearance structure of claim 1, wherein the lower end of the cutter grain at the cutting edge is also cut off and provided with a first clearance part.
8. The cam lathe tool with a clearance structure of claim 1, wherein the lower end of the cutter bar is further cut away to form a second clearance inclined plane, and the front end of the cutter bar forms a flat surface through the first clearance inclined plane, the second clearance inclined plane and the step structure.
9. The cam car bed tool with a clearance structure of claim 8, wherein the first clearance slope forms an angle of 35 ° with the axis in the length direction of the tool bar, and the second clearance slope forms an angle of 20 ° with the axis in the length direction of the tool bar.
10. The cam lathe tool with a clearance structure of claim 8, wherein a screw is arranged at the middle position of the tool grain, a threaded hole matched with the screw is arranged on the step structure, and the tool grain is fixed on the step structure through threaded connection of the screw and the threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321040149.3U CN219966473U (en) | 2023-05-05 | 2023-05-05 | Cam locomotive lathe cutter with keep away position structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321040149.3U CN219966473U (en) | 2023-05-05 | 2023-05-05 | Cam locomotive lathe cutter with keep away position structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219966473U true CN219966473U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321040149.3U Active CN219966473U (en) | 2023-05-05 | 2023-05-05 | Cam locomotive lathe cutter with keep away position structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219966473U (en) |
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2023
- 2023-05-05 CN CN202321040149.3U patent/CN219966473U/en active Active
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