CN215315940U - Processing cutter for key groove of lock key threaded sleeve - Google Patents
Processing cutter for key groove of lock key threaded sleeve Download PDFInfo
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- CN215315940U CN215315940U CN202121442663.0U CN202121442663U CN215315940U CN 215315940 U CN215315940 U CN 215315940U CN 202121442663 U CN202121442663 U CN 202121442663U CN 215315940 U CN215315940 U CN 215315940U
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- 230000007704 transition Effects 0.000 claims abstract description 52
- 238000005520 cutting process Methods 0.000 claims abstract description 23
- 238000003754 machining Methods 0.000 claims description 38
- 238000003801 milling Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 16
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model provides a processing cutter for a key locking thread sleeve key groove, which comprises: the tool comprises a tool body, a mounting hole, a connecting part, a transition part and sawteeth; the cutter body is in a disc shape; the mounting hole penetrates through the cutter body, and the axis of the mounting hole is superposed with the axis of the cutter body; the connecting part is annular, the section of the connecting part is isosceles trapezoid, the inner wall of the connecting part is connected with the outer wall of the cutter body, and the thickness of the connecting part is gradually reduced from one end close to the cutter body to the other end; the transition part is annular, and the inner wall of the transition part is connected with the outer wall of the connecting part; the side surfaces of the sawteeth form a preset angle with the center line of the sawteeth, and the sawteeth are uniformly arranged on the outer wall of the transition part along the circumferential direction of the transition part; two sides of the sawtooth are respectively symmetrically provided with cutting edges which are mutually vertical and intersect to form a holding sharp edge; wherein the thickness of the saw teeth is 0.577 mm.
Description
Technical Field
The utility model relates to the technical field of key barrel machining, in particular to a machining tool for a key barrel key groove.
Background
At present, in the related technology, the lock key thread insert is widely used for military industry, aerospace, railway locomotives, vibrating machinery and the like, and on products with higher requirements on thread strength, the lock key thread insert is mainly locked through a lock key, and the processing of a lock key groove is very important. The traditional processing keyway uses the wire-electrode cutting grooving, and machining efficiency is low, and the machining dimension is unstable, the oxidation layer that wire-electrode cutting machined surface produced. Many trades do not accept this kind of form lock key swivel nut, have the special milling flutes shaping milling cutter utensil of firm preparation, nevertheless because lock keyway size is little, the precision is high, and finished product cutter rigidity is poor, leads to the cutter life-span short, and the cutter manufacturing price is too high, can't satisfy and use production needs. Therefore, the design of a processing tool for a key locking barrel key groove is particularly important, and the problems of short service life, high price, unstable processing size, low processing efficiency and the like of the tool for processing the key locking barrel key groove are solved.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the utility model provides a machining tool for a key groove of a key screw sleeve.
In view of the above, the present invention provides a machining tool for a key lock barrel key groove, including: the tool comprises a tool body, a mounting hole, a connecting part, a transition part and sawteeth; the cutter body is in a disc shape; the mounting hole penetrates through the cutter body, and the axis of the mounting hole is superposed with the axis of the cutter body; the connecting part is annular, the section of the connecting part is isosceles trapezoid, the inner wall of the connecting part is connected with the outer wall of the cutter body, and the thickness of the connecting part is gradually reduced from one end close to the cutter body to the other end; the transition part is annular, and the inner wall of the transition part is connected with the outer wall of the connecting part; the side surfaces of the sawteeth form a preset angle with the center line of the sawteeth, and the sawteeth are uniformly arranged on the outer wall of the transition part along the circumferential direction of the transition part; two sides of the sawtooth are respectively symmetrically provided with cutting edges which are mutually vertical and intersect to form a holding sharp edge; wherein the thickness of the saw teeth is 0.577 mm.
In the technical scheme, firstly, the distances between each point of the cutter and a processing position are ensured to be equal by making the cutter body in a disc shape; secondly, the mounting hole penetrates through the cutter body, the axis of the mounting hole is overlapped with the axis of the cutter body, so that the cutter body is mounted on the driving device, and the cutter body is driven to rotate through the driving device; thirdly, the connecting part is annular, the section of the connecting part is isosceles trapezoid, the inner wall of the connecting part is connected with the outer wall of the cutter body, and the thickness of the connecting part is gradually reduced from one end close to the cutter body to the other end, so that the connecting part is connected with the cutter body, and the connecting part and the cutter body synchronously rotate; thirdly, the transition part is annular, and the inner wall of the transition part is connected with the outer wall of the connecting part so as to connect the transition part with the connecting part, so that the transition part, the connecting part and the cutter body synchronously rotate; thirdly, the side face of each sawtooth forms a preset angle with the center line of each sawtooth, friction between each sawtooth and the screw sleeve is reduced, and the plurality of sawteeth are uniformly arranged on the outer wall of the transition part along the circumferential direction of the transition part, so that stress concentration at the joint of each sawtooth and the connecting part is avoided, the damage problem of each sawtooth is reduced, the strength and the rigidity of the cutter are improved, and the service life is prolonged; thirdly, the cutting edges are symmetrically arranged on two sides of the sawtooth respectively, the two cutting edges are perpendicular to each other, and the two cutting edges are intersected to form a sharp edge, so that the single-edge angle of the sawtooth is 45 degrees, the key groove can be machined conveniently, the sharp edge can be kept, the joint of the cutting edges is sharp, no fillet is formed, the pressure on the screw sleeve is increased, the machining speed is increased, the machining quality is ensured, meanwhile, the contact abrasion is reduced, and the service life of a machining tool is prolonged; thirdly, the thickness of the saw teeth is 0.577mm, so that the machining requirement of the size of the key groove is met. By adopting the connection mode, the structure is simple, the saw blade milling cutter with low price on the market is adopted, the specific saw blade milling cutter is designed according to the pattern and the size of the key groove of the lock key threaded sleeve, the processing of the key groove is completed, the strength and the rigidity of the processing cutter are ensured by utilizing the strength and the rigidity of the saw blade, and the manufacturing cost is reduced; and the wire cutting is replaced, and the stable machining dimension is ensured. During processing, firstly, the analysis is carried out according to the condition that the size of the key slot of the key screw sleeve is 1.5mm, the processing can be completed by two saw blade milling cutters, the standard saw blade milling cutter with the thickness of 1.5mm is adopted for the first processing, and the direct grooving, the processing depth and the depth of the key slot are realized. Then, according to key slot both sides forked tail size, with the swivel nut 45 degrees of rotation, the second time processing uses the 0.577mm that this application provided thick, unilateral angle is 45 degrees shaping saw bit milling cutter, mill the processing back, mill the degree of depth guarantee with 1.5mm saw bit milling cutter's milling face parallel and level, again with swivel nut 90 degrees milling opposite side forked tails of rotation in the opposite direction, the processing of a key slot is finally accomplished, later the processing of other key slots is accomplished in proper order to circulation above-mentioned processing step, complete processing out with all keyways of key swivel nut. The key slot of the lock machined by the machining tool is stable in size, the production takt of a product is improved by at least 3 times, meanwhile, the number of products machined by the tool is increased, the machining efficiency and the production efficiency are improved, the tool is relatively cheap, and the production cost is reduced.
In addition, the processing tool for the key groove of the key thread insert in the technical scheme provided by the utility model can also have the following additional technical characteristics:
in the above technical solution, preferably, the thickness of the cutter body is 3 mm; the thickness of the transition portion is 0.577 mm.
In the technical scheme, the strength of the processing cutter is ensured by enabling the thickness of the cutter body to be 3 mm; through the thickness that makes transition portion be 0.577mm to adaptation keyway size makes sawtooth and connecting portion smooth transition simultaneously, and the manufacturing of being convenient for reduces the manufacturing degree of difficulty. Although the thicker the cutter body, the higher the strength, and the correspondingly increased thickness of the saw teeth, the wider the kerf and the greater the material consumption. If the thickness of the cutter body, the transition part and the saw teeth is too thin, the saw blade is easy to swing during working, and the cutting quality is influenced.
In the above technical solution, preferably, the tool body, the connecting portion, the transition portion, and the serrations are of an integrated structure, and the tool body, the connecting portion, the transition portion, and the serrations constitute a tool.
In this technical scheme, through making cutter body, connecting portion, transition portion and sawtooth formula structure as an organic whole, and cutter body, connecting portion, transition portion and sawtooth constitute the cutter to ensure the joint strength of cutter, avoid the cutter to damage after long-time the use, prolong the life of cutter, reduction in production and use cost.
In the above technical solution, preferably, the diameter of the cutter is 60 mm.
In this technical scheme, through making the diameter of cutter 60mm, avoid the too big cutter diameter to lead to cutter intensity to reduce, the problem of fragile produces, ensures the intensity of cutter, prolongs the life of cutter.
In the above technical solution, preferably, the rake angle of the serrations is 15 degrees; the relief angle of the serrations was 12 degrees.
In the technical scheme, the front angle of the saw teeth is 15 degrees, so that the machining speed is increased, the machining efficiency is improved, and a smaller front angle is also selected due to higher hardness of the thread insert; the clearance angle of the saw teeth is 12 degrees, so that friction between the saw teeth and a processed surface is reduced, the larger the clearance angle is, the smaller the friction is, a processed product is smoother, the processing roughness is reduced, and the processing quality is improved.
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
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic view of a key nut keyway machining tool according to one embodiment of the present invention;
FIG. 2 is an enlarged view at A of the schematic diagram of the key nut keyway machining tool of FIG. 1 according to one embodiment of the present invention;
FIG. 3 shows a schematic view of a key nut keyway machining tool according to another embodiment of the present invention;
FIG. 4 is an enlarged view at B of the schematic structural view of a key nut keyway machining tool of FIG. 3 according to another embodiment of the utility model;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
10, a tool body, 12 a mounting hole, 14 a connecting part, 16 a transition part, 18 sawteeth, 20 cutting edges and 22 a maintaining sharp edge;
a is 0.2 degree, b is 90 degree, c is 0.577mm, d is 3mm, e is 60mm, f is 15 degree, and g is 12 degree.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A working tool for keying a key barrel according to some embodiments of the present invention will be described with reference to fig. 1 to 4.
In an embodiment of the present invention, as shown in fig. 1 to 4, the present invention provides a key nut keyway machining tool including: a tool body 10, a mounting hole 12, a connecting portion 14, a transition portion 16 and serrations 18; the cutter body 10 is disc-shaped; the mounting hole 12 penetrates through the cutter body 10, and the axis of the mounting hole 12 is overlapped with the axis of the cutter body 10; the connecting part 14 is annular, the section of the connecting part 14 is isosceles trapezoid, the inner wall of the connecting part 14 is connected with the outer wall of the cutter body 10, and the thickness of the connecting part 14 is gradually reduced from one end close to the cutter body 10 to the other end; the transition part 16 is annular, and the inner wall of the transition part 16 is connected with the outer wall of the connecting part 14; the side surfaces of the sawteeth 18 form a preset angle with the center line of the sawteeth 18, and a plurality of sawteeth 18 are uniformly arranged on the outer wall of the transition part 16 along the circumferential direction of the transition part 16; cutting edges 20 are symmetrically arranged on two sides of the sawtooth 18 respectively, the two cutting edges 20 are perpendicular to each other, and the two cutting edges 20 are intersected to form a holding sharp edge 22; wherein the thickness of the serrations 18 is 0.577 mm.
In this embodiment, first, by making the tool body 10 in a disc shape, it is ensured that each point of the tool is equidistant from the machining position; secondly, the mounting hole 12 penetrates through the cutter body 10, and the axis of the mounting hole 12 is overlapped with the axis of the cutter body 10, so that the cutter body 10 is mounted on a driving device, and the cutter body 10 is driven to rotate by the driving device; thirdly, the connecting part 14 is annular, the section of the connecting part 14 is isosceles trapezoid, the inner wall of the connecting part 14 is connected with the outer wall of the cutter body 10, and the thickness of the connecting part 14 is gradually reduced from one end close to the cutter body 10 to the other end, so that the connecting part 14 is connected with the cutter body 10, and the connecting part 14 and the cutter body 10 rotate synchronously; thirdly, by making the transition part 16 annular, the inner wall of the transition part 16 is connected with the outer wall of the connecting part 14 to connect the transition part 16 with the connecting part 14, so that the transition part 16 rotates synchronously with the connecting part 14 and the tool body 10; thirdly, the side face of the sawtooth 18 forms a preset angle with the center line of the sawtooth 18, so that the friction between the sawtooth 18 and the thread sleeve is reduced, and the plurality of sawteeth 18 are uniformly arranged on the outer wall of the transition part 16 along the circumferential direction of the transition part 16, so that the stress concentration at the joint of the sawtooth 18 and the connecting part 14 is avoided, the problem of damage of the sawtooth 18 is reduced, the strength and the rigidity of the cutter are improved, and the service life is prolonged; thirdly, the cutting edges 20 are symmetrically arranged on two sides of the sawtooth 18 respectively, the two cutting edges 20 are perpendicular to each other, and the two cutting edges 20 are intersected to form a maintaining sharp edge 22, so that the single-side angle of the sawtooth 18 is 45 degrees, the key groove is conveniently machined, the maintaining sharp edge 22 is formed, the sharpness and no fillet of the joint of the cutting edges 20 are ensured, the pressure on the threaded sleeve is increased, the machining speed is increased, the machining quality is ensured, meanwhile, the contact abrasion is reduced, and the service life of a machining tool is prolonged; again, by making the thickness of the serrations 18 0.577mm, the machining requirements for the key slot dimensions are met. By adopting the connection mode, the structure is simple, the saw blade milling cutter with low price on the market is adopted, the specific saw blade milling cutter is designed according to the pattern and the size of the key groove of the lock key threaded sleeve, the processing of the key groove is completed, the strength and the rigidity of the processing cutter are ensured by utilizing the strength and the rigidity of the saw blade, and the manufacturing cost is reduced; and the wire cutting is replaced, and the stable machining dimension is ensured. During processing, firstly, the analysis is carried out according to the condition that the size of the key slot of the key screw sleeve is 1.5mm, the processing can be completed by two saw blade milling cutters, the standard saw blade milling cutter with the thickness of 1.5mm is adopted for the first processing, and the direct grooving, the processing depth and the depth of the key slot are realized. Then, according to key slot both sides forked tail size, with the swivel nut 45 degrees of rotation, the second time processing uses the 0.577mm that this application provided thick, unilateral angle is 45 degrees shaping saw bit milling cutter, mill the processing back, mill the degree of depth guarantee with 1.5mm saw bit milling cutter's milling face parallel and level, again with swivel nut 90 degrees milling opposite side forked tails of rotation in the opposite direction, the processing of a key slot is finally accomplished, later the processing of other key slots is accomplished in proper order to circulation above-mentioned processing step, complete processing out with all keyways of key swivel nut. The key slot of the lock machined by the machining tool is stable in size, the production takt of a product is improved by at least 3 times, meanwhile, the number of products machined by the tool is increased, the machining efficiency and the production efficiency are improved, the tool is relatively cheap, and the production cost is reduced.
In one embodiment of the present invention, preferably, as shown in fig. 1, the thickness of the cutter body 10 is 3 mm; the transition 16 has a thickness of 0.577 mm.
In this embodiment, the strength of the machining tool is ensured by making the thickness of the tool body 10 3 mm; by making the thickness of transition portion 16 be 0.577mm to the adaptation keyway size, make sawtooth 18 and connecting portion 14 smooth transition simultaneously, the manufacturing is convenient for, reduces the manufacturing degree of difficulty. Although the thicker the cutter body 10, the higher the strength, the greater the thickness of the serrations 18, but the wider the kerf, the greater the amount of material consumed. If the thicknesses of the cutter body 10, the transition part 16 and the saw teeth 18 are too thin, the saw blade is easy to swing during operation, and the cutting quality is affected.
In one embodiment of the present invention, preferably, as shown in fig. 1 and 3, the tool body 10, the connecting portion 14, the transition portion 16 and the serrations 18 are of a unitary structure, and the tool body 10, the connecting portion 14, the transition portion 16 and the serrations 18 constitute a tool.
In this embodiment, the cutter body 10, the connecting portion 14, the transition portion 16 and the saw teeth 18 are of an integrated structure, and the cutter body 10, the connecting portion 14, the transition portion 16 and the saw teeth 18 form the cutter, so that the connecting strength of the cutter is ensured, the cutter is prevented from being damaged after being used for a long time, the service life of the cutter is prolonged, and the production and use costs are reduced.
In one embodiment of the utility model, the diameter of the cutter is preferably 60mm, as shown in fig. 1.
In the embodiment, the diameter of the cutter is 60mm, so that the problems that the strength of the cutter is reduced and the cutter is easy to damage due to the fact that the diameter of the cutter is too large are avoided, the strength of the cutter is ensured, and the service life of the cutter is prolonged.
In one embodiment of the present invention, preferably, as shown in fig. 4, the front angle of the serrations 18 is 15 degrees; the trailing angle of the serrations 18 is 12 degrees.
In this embodiment, the rake angle of the serrations 18 is set to 15 degrees, so as to increase the machining speed and improve the machining efficiency, and since the hardness of the thread insert is high, a smaller rake angle is also selected; by setting the clearance angle of the saw tooth 18 to 12 degrees, friction between the saw tooth 18 and a machined surface is reduced, and the larger the clearance angle is, the smaller the friction is, the smoother the machined product is, the machining roughness is reduced, and the machining quality is improved.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a key thread insert keyway is with processing cutter which characterized in that, key thread insert keyway includes with processing cutter:
the cutter body is of a disc shape;
the mounting hole penetrates through the cutter body, and the axis of the mounting hole is overlapped with the axis of the cutter body;
the connecting part is annular, the section of the connecting part is isosceles trapezoid, the inner wall of the connecting part is connected with the outer wall of the cutter body, and the thickness of the connecting part is gradually reduced from one end close to the cutter body to the other end;
the transition part is annular, and the inner wall of the transition part is connected with the outer wall of the connecting part;
the side surfaces of the sawteeth and the center line of the sawteeth form a preset angle, and a plurality of sawteeth are uniformly arranged on the outer wall of the transition part along the circumferential direction of the transition part;
cutting edges are symmetrically arranged on two sides of the sawtooth respectively, the two cutting edges are perpendicular to each other, and the two cutting edges are intersected to form a maintaining sharp edge;
wherein the maximum thickness of the saw teeth is 0.577 mm.
2. The key groove machining tool for the key nut according to claim 1, characterized in that:
the thickness of the cutter body is 3 mm;
the thickness of transition portion is 0.577 mm.
3. The key groove machining tool for the key nut according to claim 2, characterized in that:
the tool comprises a tool body, a connecting part, a transition part and sawteeth, wherein the tool body, the connecting part, the transition part and the sawteeth are of an integrated structure, and the tool body, the connecting part, the transition part and the sawteeth form a tool.
4. The key groove machining tool for the key nut according to claim 3, characterized in that:
the diameter of the cutter is 60 mm.
5. The key groove machining tool for the key nut according to claim 1, characterized in that:
the number of the saw teeth is 60.
6. The key groove machining tool for the key nut according to claim 5, wherein:
the front angle of the saw teeth is 15 degrees;
the relief angle of the serrations was 12 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121442663.0U CN215315940U (en) | 2021-06-28 | 2021-06-28 | Processing cutter for key groove of lock key threaded sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121442663.0U CN215315940U (en) | 2021-06-28 | 2021-06-28 | Processing cutter for key groove of lock key threaded sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215315940U true CN215315940U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121442663.0U Active CN215315940U (en) | 2021-06-28 | 2021-06-28 | Processing cutter for key groove of lock key threaded sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215315940U (en) |
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2021
- 2021-06-28 CN CN202121442663.0U patent/CN215315940U/en active Active
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Effective date of registration: 20240105 Address after: No. 19-1 Xindong Third Street, Dadong District, Shenyang City, Liaoning Province, 110000 Patentee after: Liaoning Province Thread Tightening Technology Research Co.,Ltd. Address before: 110 000 No. 76-41 Shenbei Road, Shenyang New District, Shenyang City, Liaoning Province Patentee before: SHENYANG LIYANG MECHANICAL COMPONENT MANUFACTURING Co.,Ltd. |