CN214109066U - Multi-blade reamer capable of improving machining precision - Google Patents
Multi-blade reamer capable of improving machining precision Download PDFInfo
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- CN214109066U CN214109066U CN202023123058.5U CN202023123058U CN214109066U CN 214109066 U CN214109066 U CN 214109066U CN 202023123058 U CN202023123058 U CN 202023123058U CN 214109066 U CN214109066 U CN 214109066U
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Abstract
The utility model discloses an improve throw-away reamer of machining precision relates to the cutter for the lathe, and it mainly includes stalk portion, guide awl and is located the stalk portion and guides the cutting part between the awl, the cutting part includes rough machining portion and finish machining portion, rough machining portion and the coaxial setting of finish machining portion. The utility model has the advantages of simple structure, realization treat the continuous rough machining of cutting article and finish machining operation, help promoting the efficiency of treating cutting article cutting plastic operation to and treat the straightness accuracy and the precision of cutting article cutting.
Description
Technical Field
The utility model relates to a cutter for the lathe especially relates to an improve throw-away reamer of machining precision.
Background
The reamer is a rotary cutter with one or more cutter teeth for cutting off a thin layer of metal on the surface of an object to be cut, and the reamer is a rotary finishing cutter with a straight edge or a spiral edge for reaming or repairing a hole. The processing precision requirement of the reamer is usually higher than that of a drill bit due to the fact that the cutting amount of the reamer is small, and the reamer can be operated manually or installed on a drilling machine to work.
The current chinese patent that publication number is CN106735572A discloses a screw thread formula multiple-edge reamer, including guide awl, cutting portion, side edge, chip groove, back taper, interior cold bore, sword footpath, cold liquid mouth, transition end, spring, card key, handle of a knife and screw thread, the cold bore in guide awl connection, and guide awl setting is in the sword footpath, cutting portion is connected with the side edge, and cutting portion and side edge setting are in the sword footpath, the side edge is connected to the chip groove, the back taper is connected with the side edge, interior cold bore is run through and is passed through cutting portion, side edge, chip groove and back taper setting in the sword footpath, and interior cold bore is connected with the cold liquid mouth, transition end fixed connection sword footpath, spring coupling card handle of a knife, and spring coupling card key setting is in the transition end, fixed connection transition end, the screw thread setting is on the handle of a knife.
By adopting the scheme, after the reamer is installed on the power structure by a worker, the reamer moves linearly towards an object to be cut under the guidance of the guide cone, the object is cut by the cutting part, the cut part is leveled by the side edge, metal chips generated by cutting are discharged through the chip discharge groove, and finally the object is formed by inverted cone treatment. In the process of processing an object by using the threaded multi-edge reamer, the object to be cut is only subjected to primary cutting and shaping work by the threaded multi-edge reamer, if the object is subjected to secondary processing, a cutter needs to be installed again, and the processing operation efficiency is low; in addition, the installation error of the two cutters seriously affects the processing precision of the object to be cut, and the part to be improved exists.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model aims to provide an improve throw-away reamer of machining precision realizes treating continuous rough machining and finish machining operation of cutting article with the help of with rough machining portion and the coaxial setting of finish machining portion between stalk portion and guide awl, helps promoting the efficiency of treating cutting article cutting plastic operation to and treat straightness accuracy and the precision of cutting the article cutting.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an improve throw-away reamer of machining precision mainly includes stalk portion, guide awl and is located the stalk portion and guides the cutting part between the awl, the cutting part includes rough machining portion and finish machining portion, and rough machining portion and finish machining portion are coaxial to be set up.
Through adopting above-mentioned technical scheme, with finish machining portion and the coaxial setting of rough machining portion on a multiple-blade reamer, after the staff installed the reamer on power structure, the multiple-blade reamer can realize treating continuous rough machining and the finish machining operation of cutting article, helps promoting the efficiency of treating the cutting plastic operation of cutting article to and help guaranteeing the straightness accuracy and the precision of treating the cutting article cutting.
The utility model discloses further set up to: the rough machining part is positioned on one side close to the handle part, and the fine machining part is positioned between the rough machining part and the guide cone.
Through adopting above-mentioned technical scheme, in the actual work, the multiple-edge reamer advances the article of waiting to cut with whole cutting part under the guide of guide awl to under the back-pull operation of power structure, utilize rough machining portion and finish machining portion to carry out cutting process, lead to, stability when helping promoting cutting operation in proper order.
The utility model discloses further set up to: the front section is a three-edge reamer, and the radial relief angle alpha of the three-edge reamer is 15-20 degrees.
Through adopting above-mentioned technical scheme, use three sword reamers to treat the cutting article and carry out rough machining, and will help making things convenient for the chip removal of reamer to and reduce the condition that the reamer deviates from one side of cutting face and takes place wearing and tearing.
The utility model discloses further set up to: the rear section part is provided with a six-blade reamer.
By adopting the technical scheme, the rear section part is arranged to be the six-blade reamer, six cutter teeth of the six-blade reamer are utilized for cutting operation, and the precision of the reamer for cutting an object to be cut is further ensured.
The utility model discloses further set up to: the radial relief angle beta of the six-blade reamer is 15-20 degrees, and the groove roots of two adjacent chip grooves of the six-blade reamer are arranged at intervals of 55 degrees, 65 degrees and 60 degrees.
Through adopting above-mentioned technical scheme, set up six sword reamers into asymmetric cell type reamers, the cutting force dispersion that the reamer received is on six sword teeth for the vibration range of reamer reduces, helps promoting the stability of reamer in the cutting operation.
The utility model discloses further set up to: the diameter of back end portion is less than the diameter of finishing portion, back end portion is close to the shaping on one side of finishing portion and has first conical surface, and the contained angle gamma between the axis of first conical surface and guide cone is 15. By adopting the technical scheme, after the rear section part finishes the cutting operation of the object to be cut, the finish machining operation is carried out through the transition of the first conical surface, so that the situation that the finish machining part impacts the hole to be machined and the surface of the hole to be machined is abraded is favorably prevented.
The utility model discloses further set up to: and a second conical surface is formed on one side of the rough machining part close to the handle part, and the included angle delta between the second conical surface and the axis of the guide cone is 45 degrees.
By adopting the technical scheme, when the reamer starts to cut an object to be cut from the joint of the handle part and the blade part, the rough machining operation is carried out through the transition of the second conical surface, so that the rough machining part can be prevented from impacting a hole to be machined, and the surface of the hole to be machined is abraded.
The utility model discloses further set up to: a positioning groove is formed in one side, close to the front section, of the handle portion.
Through adopting above-mentioned technical scheme, with the help of the constant head tank that sets up between handle portion and second conical surface, help installing handle portion on power structure.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) by coaxially arranging the rough machining part and the fine machining part between the handle part and the guide cone, continuous rough machining and fine machining operation of an object to be cut is realized, and the efficiency of cutting and shaping operation of the object to be cut and the straightness and precision of cutting of the object to be cut are improved;
(2) the reamer is used for carrying out the back-pull type cutting and shaping operation on the workpiece to be machined, so that the straightness and precision of the cut of the workpiece to be machined are further ensured, and the stability of the cutting operation is improved;
(3) comprehensive utilization sets up anterior segment portion into three sword reamers to and set up back segment portion and finishing portion into six sword reamers, help the reamer to treat the chip removal in the machined part cutting plastic operation, and guarantee the precision of cutting operation.
Drawings
FIG. 1 is a schematic axial view of the overall structure of a multi-blade reamer according to the present invention, which mainly shows the improvement of machining precision;
FIG. 2 is a sectional view of the front section of the present embodiment;
fig. 3 is a sectional view mainly showing the structure of the rear section in this embodiment.
Reference numerals: 1. a handle; 2. a guide cone; 3. a blade part; 31. a rough machining part; 311. a front section; 312. a rear section; 32. a finishing section; 4. a first conical surface; 5. a second tapered surface; 6. positioning a groove; 7. a chip groove.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1, a multi-edge reamer for improving machining accuracy mainly comprises a shank 1, a guide cone 2, and an edge 3 between the shank 1 and the guide cone 2. The blade 3 includes a rough machined portion 31 and a finish machined portion 32, and the rough machined portion 31 and the finish machined portion 32 are coaxially provided.
In actual work, a worker fixes the handle part 1 of the reamer on a power structure in a threaded manner, and at the moment, the reamer is driven by the power structure to perform rough machining operation and finish machining operation on a workpiece to be machined sequentially by utilizing the rough machining part 31 and the finish machining part 32 on the reamer.
Referring to fig. 1, a rough machined portion 31 is provided on a side close to the shank 1, and a finished machined portion 32 is provided on a side close to the guide cone 2. The rough machined portion 31 includes a front stage portion 311 and a rear stage portion 312. The front step portion 311 is disposed on the side close to the shank portion 1, and the rear step portion 312 is disposed between the front step portion 311 and the finishing portion 32. A first conical surface 4 is formed on one side of the rear section 312 close to the finishing part 32, and the angle between the first conical surface 4 and the axis of the guide cone 2 is gamma which is 15 degrees. The front section 311 is formed with a second conical surface 5 on a side thereof adjacent to the handle 1, and the angle between the second conical surface 5 and the axis of the guide cone 2 is δ, δ being 45 °. The front section 311 is provided with a positioning groove 6 on one side close to the handle 1.
In application, the reamer pushes the whole blade part 3 into an object to be cut under the guidance of the guide cone 2, and then the reamer is pulled backwards by the power structure. In the back-pulling operation of the power structure on the reamer, the reamer is transited by the second conical surface 5, the front section 311 and the rear section 312 are used for rough machining operation on the object to be cut in sequence, then the reamer is transited by the first conical surface 4, and the finish machining operation is carried out on the object to be cut by the finish machining part 32.
Referring to fig. 2, the front section 311 is provided as a three-edged reamer, and the length of the front section 311 is 10 mm. The radial relief angle alpha of the three-edge reamer is 18 degrees, and the diameter of the three-edge reamer is 5 millimeters.
Referring to fig. 3, the rear section 312 is configured as a six-blade reamer, and the length of the rear section 312 is 30 mm. The radial relief angle beta of the six-edged reamer is 18 deg.. The groove roots of two adjacent chip grooves 7 of the six-blade reamer are arranged at the interval angles of 55 degrees, 65 degrees and 60 degrees. The included angle between the two side groove walls of the chip groove 7 of the six-blade reamer is 80 degrees. The finishing section 32 is provided as a six-edged reamer having a diameter greater than the rear section 312, the six-edged reamer having a diameter of 5 mm. The length of the finishing section 32 is 30 mm.
The implementation principle of the above embodiment is as follows: in the application, the staff will utilize the mounting groove to fix a position earlier, install the reamer on power structure. The reamer is driven by a power structure and is guided by a guide cone 2 to push the whole blade part 3 into a workpiece to be machined. And then, the reamer is pulled back by a power structure, is transited by the second conical surface 5, and performs rough machining operation on the workpiece to be machined by sequentially utilizing the front section 311 and the rear section 312. After the rough machining operation is finished, the reamer is transited by the first conical surface 4, and the finish machining operation is carried out on the workpiece to be machined by using the finish machining part 32. After the cutting and shaping operation of the object to be processed is finished, the reamer is far away from the object to be processed under the guidance of the guide cone 2.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides an improve throw-away reamer of machining precision mainly includes stalk portion (1), guide awl (2) and is located stalk portion (1) and guide sword (3) between (2), its characterized in that, cutting portion (3) are including rough machining portion (31) and finish machining portion (32), rough machining portion (31) and finish machining portion (32) coaxial arrangement.
2. The multi-edge reamer for improving the machining accuracy according to claim 1, wherein the rough machining portion (31) is located on the side close to the shank (1), and the finish machining portion (32) is located between the rough machining portion (31) and the pilot cone (2).
3. The multi-edge reamer for improving the machining accuracy according to claim 1, wherein the rough machining portion (31) includes a front section (311) and a rear section (312).
4. The multi-bladed reamer for improving the machining precision according to claim 3, characterized in that said front section (311) is provided as a three-bladed reamer having a radial relief angle of between 15 ° and 20 °.
5. The multi-bladed reamer for improving the machining precision according to claim 3, characterized in that said rear section (312) is provided as a six-bladed reamer.
6. The multi-edge reamer for improving the machining precision according to claim 5, wherein the radial relief angle of the six-edge reamer is 15-20 degrees, and the groove roots of two adjacent chip discharge grooves (7) of the six-edge reamer are arranged at angular intervals of 55 degrees, 65 degrees and 60 degrees.
7. The multi-edge reamer for improving the machining accuracy as claimed in claim 3, wherein the diameter of the rear section (312) is smaller than that of the finishing section (32), a first tapered surface (4) is formed on a side of the rear section (312) close to the finishing section (32), and an included angle γ between the first tapered surface (4) and the axis of the guide cone (2) is 15 °.
8. The multi-edge reamer for improving the machining accuracy according to claim 1, wherein the rough machining portion (31) has a second tapered surface (5) formed on a side thereof close to the shank portion (1), and the angle between the second tapered surface (5) and the axis of the guide cone (2) is 45 °.
9. The multi-edge reamer for improving the machining precision according to claim 3, characterized in that the side of the shank (1) close to the front section (311) is provided with a positioning groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023123058.5U CN214109066U (en) | 2020-12-22 | 2020-12-22 | Multi-blade reamer capable of improving machining precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023123058.5U CN214109066U (en) | 2020-12-22 | 2020-12-22 | Multi-blade reamer capable of improving machining precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214109066U true CN214109066U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023123058.5U Active CN214109066U (en) | 2020-12-22 | 2020-12-22 | Multi-blade reamer capable of improving machining precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214109066U (en) |
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2020
- 2020-12-22 CN CN202023123058.5U patent/CN214109066U/en active Active
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