CN216966497U - High-efficient high accuracy quick change reamer - Google Patents
High-efficient high accuracy quick change reamer Download PDFInfo
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- CN216966497U CN216966497U CN202123395769.2U CN202123395769U CN216966497U CN 216966497 U CN216966497 U CN 216966497U CN 202123395769 U CN202123395769 U CN 202123395769U CN 216966497 U CN216966497 U CN 216966497U
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- reamer
- head
- rod
- locking
- high precision
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- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 23
- 238000003754 machining Methods 0.000 abstract description 12
- 101100234547 Caenorhabditis elegans rod-1 gene Proteins 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a high-efficiency high-precision quick-change reamer, which comprises a reamer rod, wherein the upper end of the reamer rod is provided with an integrally-formed mounting head, the edge of the lower end of the reamer rod is provided with a mounting step, a reamer head is sleeved on the mounting step, the side surface of the reamer head is spirally provided with an integrally-formed reamer blade, the middle of the lower end surface of the reamer rod is provided with a locking groove, the side wall formed between the locking groove and the mounting step is a thin wall, the bottom of the locking groove is provided with a threaded hole, a locking nail is arranged in the internal thread of the locking groove, the locking nail supports the side wall of the mounting step to expand the reamer head, and the lower end surface of the reamer rod and the bottom surface of the reamer head are coplanar; according to the reamer head fixing device, the reamer head can be quickly installed and detached through the expandable reamer rod and the locking nails, the fixing grooves with the inclination angles B and the positioning blocks are additionally arranged to fix the reamer head, so that the stability and the precision are improved, the machining precision of the reamer head is guaranteed, the cooling holes are formed in the locking nails, the cooling holes are communicated with the through holes in the reamer rod, and the cooling speed of a reamer is improved.
Description
Technical Field
The utility model relates to the technical field of reamers, in particular to a high-efficiency high-precision quick-change reamer.
Background
The drill bit is also called as a drill bit, is frequently used in geological survey, stone breaking and machining, and particularly is matched with a numerical control machining center or a drilling machine to drill a part in the machining, so that a standard aperture is obtained according to the outer diameter of the drill bit.
The reamer is a rotary cutter with one or more cutter teeth and used for cutting off a thin layer of metal on the surface of a processed hole, the reamer is a rotary finish machining cutter with a straight edge or a spiral edge and used for reaming or repairing the hole, the machining precision requirement of the reamer is usually higher than that of a drill bit due to less cutting amount, the reamer can be manually operated or installed on a drill to work, the reamer used for machining a cylindrical hole is more common, the reamer used for machining the conical hole is a conical reamer, the reamer is less in use, a manual reamer and a machine reamer are available according to the use condition, the machine reamer can be divided into a straight-shank reamer and a tapered-shank reamer, and the hand reamer is of a straight-shank type;
however, in the prior art, production cost is often required to be reduced for modern industrial production, the reamer belongs to a common loss tool in processing, the cutter head and the blades of the reamer are broken and broken frequently in high-speed cutting, only the whole cutter can be replaced and scrapped, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
In view of the problems raised in the above technical background, the present invention provides the following technical solutions:
the utility model provides a high-efficient high accuracy quick change reamer, includes the reamer pole, the reamer pole upper end is provided with integrated into one piece's installation head, reamer pole lower extreme border department opens there is the installation step, the cover has the reamer head on the installation step, reamer head side spiral is provided with integrated into one piece's reamer piece, it has the locking groove to open in the middle of the terminal surface under the reamer pole, the lateral wall that forms between locking groove and the installation step is the thin wall, the threaded hole is seted up to the locking groove bottom, the locking nail is installed to the locking groove internal thread, the locking nail supports the lateral wall tight reamer head that expands of installation step, terminal surface and reamer head bottom surface coplane under the reamer pole.
Preferably, the locking nail is obliquely provided with a plurality of cooling holes from the upper edge of the screw cap to the lower part of the stud, and the cooling holes are uniformly symmetrical with the axis of the locking nail.
Preferably, the included angle between the central line of the cooling hole and the axial line of the reamer rod is A, and the range of the tan A is required to be 0.15-0.3.
Preferably, the nut of the locking nail is of a conical structure, the small end of the nut is connected with the stud of the locking nail, and the large end of the nut faces the bottom.
Preferably, the edge of the reamer rod close to the mounting step is provided with two fixing grooves, positioning blocks are mounted in the two fixing grooves, and the lower ends of the two positioning blocks abut against the inner side of the edge of the reamer head.
Preferably, the upper side edges of the two fixing grooves are inclined inwards, and an included angle B formed by the tops of the fixing grooves and the side walls is 75-85 degrees.
Preferably, the two fixing grooves are symmetrical by 180 degrees around the axis of the reamer spindle.
Preferably, the number of the cooling holes is at least 2.
Preferably, a through hole penetrates through the middle of the reamer rod in the axial direction and penetrates through the through hole to the screw hole of the locking groove.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the reamer head fixing device, the reamer head is quickly mounted and dismounted through the expandable reamer rod and the locking nail, the fixing groove with the inclination angle B and the positioning block are additionally arranged to fix the reamer head, so that the stability and the precision are improved, and the machining precision of the reamer head is ensured; during installation, after the positioning block is inserted upwards along the fixing groove, the reamer head is sleeved outside the installation step to abut against the positioning block, the locking nail is locked in the locking groove in a threaded manner, and the side wall of the installation step is expanded through the conical nut structure, so that the reamer head is locked and fixed;
2. according to the reamer, the plurality of cooling holes are formed in the locking nail and communicated with the through holes in the reamer rod, so that the reamer blade and a machined surface can be conveniently cooled by introducing cooling liquid during high-speed machining, the rapid cooling speed of the reamer is increased, and the damage rate of the cutting edge is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view of the locking pin according to the embodiment of the present invention;
FIG. 4 is a cross-sectional view of a locking pin in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fixing groove according to an embodiment of the present invention;
the embodiment of the utility model mainly comprises the following component symbols:
the reamer comprises a reamer rod-1, an installation step-101, a locking groove-102, a fixing groove-103, a through hole-104, a reamer head-2, a reamer blade-201, a locking nail-3, a cooling hole-301 and a positioning block-4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, a high-efficient high accuracy quick change reamer, including reamer pole 1, 1 upper end of reamer pole is provided with integrated into one piece's installation head, 1 lower extreme border department of reamer pole opens there is installation step 101, the cover has reamer head 2 on the installation step 101, 2 side spirals of reamer head are provided with integrated into one piece's reamer piece 201, open in the middle of 1 terminal surface of reamer pole has locking groove 102, the lateral wall that forms between locking groove 102 and the installation step 101 is the thin wall, the screw hole has been seted up to locking groove 102 bottom, locking pin 3 is installed to locking groove 102 internal thread, locking pin 3 supports the tight reamer head 2 of the lateral wall of installation step 101, 1 lower terminal surface of reamer pole and 2 bottom surfaces coplanaries of reamer head.
As shown in fig. 3 and 4, the locking nail 3 is obliquely provided with a plurality of cooling holes 301 from the upper edge of the nut to the lower part of the stud, and the plurality of cooling holes 301 are uniformly symmetrical with the axis of the locking nail 3.
The included angle between the central line of the cooling hole 301 and the axial line of the reamer rod 1 is A, and the range of the required tan A is 0.15-0.3.
The nut of the locking nail 3 is of a conical structure, the small end of the nut is connected with the stud of the locking nail 3, and the large end of the nut faces the bottom.
Two fixing grooves 103 are formed in the edge of the reamer rod 1 close to the mounting step 101, positioning blocks 4 are mounted in the two fixing grooves 103, and the lower ends of the two positioning blocks 4 abut against the inner sides of the edges of the reamer head 2.
According to the reamer head 2, the reamer head 2 is rapidly installed and detached through the expandable reamer rod 1 and the locking nail 3, the fixing groove 103 with the inclination angle B and the positioning block 4 are additionally arranged to fix the reamer head 2, so that the stability and the precision are improved, and the machining precision of the reamer head 2 is ensured; during installation, the positioning block 4 is upwards inserted into the fixing groove 103 for installation, the reamer head 2 is sleeved outside the installation step 101 to abut against the positioning block 4, the locking nail 3 is locked in the locking groove 102 in a threaded mode, the side wall of the installation step 101 is expanded through the conical nut structure, and locking and fixing of the reamer head 2 are achieved.
As shown in fig. 5, the upper sides of the two fixing grooves 103 are inclined inwards, an included angle B formed by the top and the side wall of each fixing groove 103 is 75-85 degrees, the included angle B is set to facilitate the positioning block 4 to abut against the inside of the fixing groove 103 and not to be extruded and slide out easily, and the mounting and positioning stability and precision of the reamer head 2 are improved.
The two fixing grooves 103 are symmetrical with the axis of the reamer shank 1 at 180 degrees.
The number of the cooling holes 301 is at least 2, and the number of the cooling holes can be matched with that of the reamer blades 201, so that each reamer blade 201 corresponds to 1 cooling hole 301, and the cooling speed is increased; the reamer rod 1 is axially provided with a through hole 104 in the middle in a penetrating manner, the through hole 104 penetrates to a screw hole of the locking groove 102, the locking nail 3 is internally provided with a plurality of cooling holes 301, the cooling holes 301 are communicated with the through hole 104 in the reamer rod 1, so that cooling liquid is conveniently introduced to cool the reamer blade 201 and a machined surface in time during high-speed machining, the rapid cooling speed of the reamer is improved, and the damage rate of a cutting edge is reduced.
In order to enable the reamer head 2 and the reamer blade 201 to have more excellent machining effect and actual cost control, the reamer head 2 and the reamer blade 201 are preferably made of integrally sintered hard alloy materials, the reamer rod 1 is made of alloy steel, and the locking nail 3 is preferably a screw with an inner hexagonal hole, so that the reamer has high strength, high hardness and high precision, and the effect of detaching the locking nail 3 is more convenient.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a high-efficient high accuracy quick change reamer, includes the reamer pole, the reamer pole upper end is provided with integrated into one piece's installation head, its characterized in that: the reamer bar lower extreme border department is opened there is the installation step, the cover has the reamer head on the installation step, reamer head side spiral is provided with integrated into one piece's reamer piece, open in the middle of the end surface under the reamer bar has the locked groove, the lateral wall that forms between locked groove and the installation step is the thin wall, the threaded hole is seted up to the locked groove bottom, the lock pin is installed to the locked groove internal thread, the lock pin supports the tight reamer head of lateral wall bloated of installation step, terminal surface and reamer head bottom surface coplane under the reamer bar.
2. The efficient high precision quick-change reamer of claim 1 wherein: the locking nail is obliquely provided with a plurality of cooling holes from the upper edge of the nut to the lower part of the stud, and the plurality of cooling holes are uniformly and symmetrically arranged along the axis of the locking nail.
3. The high efficiency, high precision quick change reamer of claim 2 wherein: the included angle between the central line of the cooling hole and the axial line of the reamer rod is A, and the range of the tan A is required to be 0.15-0.3.
4. The high efficiency, high precision quick change reamer of claim 3 wherein: the nut of the locking nail is of a conical structure, the small end of the nut is connected with the stud of the locking nail, and the large end of the nut faces the bottom.
5. The high efficiency, high precision quick change reamer of claim 4 wherein: two fixing grooves are formed in the edge of the reamer rod close to the mounting step, positioning blocks are mounted in the two fixing grooves, and the lower ends of the positioning blocks abut against the inner sides of the edges of the reamer heads.
6. The efficient high precision quick-change reamer of claim 5 wherein: the upper side edges of the two fixing grooves are obliquely arranged inwards, and an included angle B formed by the top of each fixing groove and the corresponding side wall is 75-85 degrees.
7. The efficient high precision quick-change reamer of claim 6 wherein: the two fixing grooves are symmetrical by 180 degrees around the axis of the reamer rod.
8. The high efficiency, high precision quick change reamer of claim 7 wherein: the number of the cooling holes is at least 2.
9. The efficient high precision quick-change reamer of claim 8 wherein: a through hole penetrates through the middle of the reamer rod in the axial direction and penetrates to the screw hole of the locking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123395769.2U CN216966497U (en) | 2021-12-31 | 2021-12-31 | High-efficient high accuracy quick change reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123395769.2U CN216966497U (en) | 2021-12-31 | 2021-12-31 | High-efficient high accuracy quick change reamer |
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| Publication Number | Publication Date |
|---|---|
| CN216966497U true CN216966497U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123395769.2U Active CN216966497U (en) | 2021-12-31 | 2021-12-31 | High-efficient high accuracy quick change reamer |
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| CN (1) | CN216966497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054851A (en) * | 2021-12-31 | 2022-02-18 | 迈迪夫工具技术(江苏)有限公司 | High-efficient high accuracy quick change formula reamer |
-
2021
- 2021-12-31 CN CN202123395769.2U patent/CN216966497U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054851A (en) * | 2021-12-31 | 2022-02-18 | 迈迪夫工具技术(江苏)有限公司 | High-efficient high accuracy quick change formula reamer |
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