CN210010514U - Vertical cone type milling cutter for chamfering valve box accessory - Google Patents
Vertical cone type milling cutter for chamfering valve box accessory Download PDFInfo
- Publication number
- CN210010514U CN210010514U CN201920313488.1U CN201920313488U CN210010514U CN 210010514 U CN210010514 U CN 210010514U CN 201920313488 U CN201920313488 U CN 201920313488U CN 210010514 U CN210010514 U CN 210010514U
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- Prior art keywords
- cutter
- spherical cavity
- cavity
- milling cutter
- runner
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- 238000003801 milling Methods 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims description 38
- 238000003754 machining Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a valve box accessory chamfer processing is with founding cone type milling cutter, including conical tool bit, tool bit fixedly connected with cutter arbor, the top of tool bit is seted up flutedly, be provided with a plurality of spherical cavity down in the tool bit, be provided with the spherical cavity of going up with spherical cavity complex down in the recess, the tank bottom of going up spherical cavity relative recess is upwards protruding, through a plurality of through-cavities intercommunication between spherical cavity and the last spherical cavity down, spherical cavity is filled with heat-conducting medium down, be equipped with the runner with the recess complex in the cutter arbor, the runner mouth of runner one end is located the lateral wall of cutter arbor, and the runner mouth of the runner other end is located the bottom of cutter arbor, through above-mentioned device part, realizes dispelling the heat to milling cutter, through real-time heat dissipation, has increased milling cutter's machining precision, has reduced milling cutter's wearing and tearing and is out of shape, simultaneously, has also, the working efficiency is increased.
Description
Technical Field
The utility model relates to a milling cutter especially relates to a valve box accessory chamfer processing is with founding awl formula milling cutter.
Background
For valve box accessory processing work piece, often need set up chamfer hole on the valve box work piece, generally use conical milling cutter to process among the prior art, its course of operation is: the milling cutter has a conical head for continuously processing a workpiece, and a round hole with a chamfer is formed on the processed workpiece because the milling cutter is conical.
However, as the milling cutter rubs against a hard alloy workpiece for a long time, the temperature of the tapered head of the milling cutter is high due to severe friction during the machining process. And milling cutter is in high-speed rotation in-process, is difficult to carry out effectual heat dissipation to it, is in the cone head portion of high temperature for a long time, and the appearance is out of shape a little, causes the chamfer accuracy of processing to reduce.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a valve box accessory chamfer processing is with founding awl formula milling cutter is provided.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides a valve box accessory chamfer processing is with founding conical milling cutter, includes conical tool bit, tool bit fixedly connected with cutter arbor, the top of cutter arbor is seted up flutedly, be provided with a plurality of spherical cavities down in the cutter arbor, be provided with in the recess with spherical cavity complex down go up spherical cavity, the tank bottom of going up the relative recess of spherical cavity is upwards protruding, through a plurality of logical chambeies intercommunication down between spherical cavity and the last spherical cavity, spherical cavity intussuseption is filled with heat-conducting medium down, be equipped with in the cutter arbor with recess complex runner, the runner mouth of runner one end is located the lateral wall of cutter arbor, and the runner mouth of the runner other end is located the bottom of cutter arbor.
Preferably, 3 lower spherical cavities are arranged in the cutter head, 3 upper spherical cavities matched with the lower spherical cavities are arranged in the corresponding grooves, and the volume of the upward bulge of the upper spherical cavity relative to the groove bottom of the groove is half of the volume of the upper spherical cavity.
Preferably, the mouth of one end of the through cavity is communicated with the bottom of the upper spherical cavity, the other end of the through cavity is communicated with the top of the lower spherical cavity, and each upper spherical cavity is communicated with the corresponding lower spherical cavity through 4-6 through cavities.
Preferably, the through cavity is a cylindrical through cavity, and the inner diameter of the through cavity is 0.5-0.8 mm.
Preferably, the flow channel is L-shaped, the lower flow channel opening of the flow channel is positioned in the center of the bottom of the cutter bar, the upper flow channel opening of the flow channel is positioned on the side wall of the cutter bar, and the bottom of the cutter bar is fixedly connected to the top of the groove.
Preferably, the upstream flow passage opening is provided with a liquid feeding screw rod, the liquid feeding screw rod comprises a screw rod body, the inner side wall of the upstream flow passage opening is provided with an internal thread matched with the screw rod body, the screw rod body is in screwed connection with the upstream flow passage opening, and the screw rod body is provided with a liquid feeding cavity.
Preferably, the top of the cutter bar is provided with a key groove.
Preferably, the tool bit is provided with a chip groove, and the chip groove is V-shaped
Compared with the prior art, the utility model has the following advantages:
the utility model discloses a valve box accessory chamfer processing is with founding cone type milling cutter, including conical tool bit, tool bit fixedly connected with cutter arbor, the top of tool bit is seted up flutedly, be provided with a plurality of spherical cavity down in the tool bit, be provided with the spherical cavity of going up with spherical cavity complex down in the recess, the tank bottom of going up spherical cavity relative recess is upwards protruding, through a plurality of through-cavities intercommunication between spherical cavity and the last spherical cavity down, spherical cavity is filled with heat-conducting medium down, be equipped with the runner with the recess complex in the cutter arbor, the runner mouth of runner one end is located the lateral wall of cutter arbor, and the runner mouth of the runner other end is located the bottom of cutter arbor, through above-mentioned device part, realizes dispelling the heat to milling cutter, through real-time heat dissipation, has increased milling cutter's machining precision, has reduced milling cutter's wearing and tearing and is out of shape, simultaneously, has also, the working efficiency is increased.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a groove on a tool bit according to an embodiment of the present invention;
FIG. 3 is a sectional view of a vertical cone type milling cutter for chamfering valve box fittings in an embodiment of the present invention;
fig. 4 is a schematic view of a partially enlarged structure of a portion a in fig. 3 according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a liquid feeding screw rod in an embodiment of the present invention;
fig. 6 is a sectional view of the liquid feeding screw in the embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-6, the vertical cone type milling cutter for chamfering valve box accessories comprises a conical cutter head 2, wherein the cutter head 2 is fixedly connected with a cutter bar 1, and a V-shaped chip removal groove 3 is formed in the cutter head 2, so that metal chips can be conveniently removed. In particular the flutes 3, open onto the side wall of the cutting head 2 thereof (in particular at the conical head). A keyway 5 on the tool holder 1 for fitting to a milling machine.
In the machining process, when a milling cutter is found to process a certain number of chamfers, the machine tool needs to be stopped to cool the milling cutter head 2, otherwise, the processing chamfer precision is reduced, and the milling cutter head 2 is easy to deform under the serious condition.
In order to solve the technical problems:
in the tool bit 2 (the tool bit 2 includes a conical head part and a cylindrical part, the conical head part is fixedly connected with the bottom of the cylindrical part, the conical head part is used for processing a chamfer, the cylindrical part is used for connecting the tool bar 1), the top of the cylindrical part is provided with a groove 4 (specifically, the cylindrical part is provided with the groove 4), the tool bit 2 is internally provided with 3 lower spherical cavities 8 (the lower spherical cavities 8 are spherical and internally hollow, the lower spherical cavities 8 are specifically arranged in the conical head part), the groove 4 is internally provided with 3 upper spherical cavities 9 (the upper spherical cavities 9 are spherical and internally hollow) matched with the lower spherical cavities 8, each upper spherical cavity 9 is upwards convex relative to the groove bottom of the groove 4, specifically, the upper spherical cavity 9 is upwards convex by one half, therefore, the convex part of which protrudes out of the groove bottom of the recess 4, while the other half of the upper spherical cavity 9 is located in the cutting head 2 (in the cylindrical part). The lower spherical cavity 8 is communicated with the upper spherical cavity 9 through 6 through cavities 11 (the through cavity 11 is a cylindrical through cavity 11, the inner diameter of the through cavity 11 is 0.8mm), and the lower spherical cavity 8 is filled with a heat-conducting medium, specifically metal sodium. The metal sodium is liquefied into liquid sodium under the condition of high temperature (when the tool bit 2 is chamfered, the metal processing workpiece is continuously rubbed to generate larger friction heat), the high-temperature metal sodium has certain steam pressure and enters the upper spherical cavity 9 along the through cavity 11 (the through cavity 11 is designed to have the inner diameter of 0.8mm, and the action of the through cavity is the same as that of a capillary tube). High-temperature liquid sodium enters the upper spherical cavity 9 from the through cavity 11 (the vapor pressure in the lower spherical cavity 8 is higher according to the capillary principle). The heat dissipation is realized through the mode, and the heat of the conical head is conducted to the low-temperature upper spherical cavity 9 (the lower spherical cavity 8 is positioned in the conical head) through the high-temperature liquid sodium.
In order to further dissipate heat:
a flow channel 7 matched with the groove 4 is arranged in the cutter bar 1, the flow channel 7 is L-shaped, a lower flow channel opening of the flow channel 7 is positioned in the center of the bottom of the cutter bar 1, an upper flow channel opening of the flow channel 7 is positioned on the side wall of the cutter bar 1, and the bottom of the cutter bar 1 is fixedly connected to the top of the groove 4.
Specifically, the cutter bar 1 is fixed on the top wall of the groove 4 by welding, at this time, the cutter bar 1 and the cutter head 2 (cylindrical part) form a whole, and the groove 4 in the cutter head 2 and the bottom of the cutter bar 1 form a closed cavity. The heat conducting liquid is added from the upper flow port of the flow channel 7, enters the lower flow port of the flow channel 7 along the flow channel 7 and flows into the groove 4. Because the upper spherical cavity 9 protrudes upwards relative to the bottom of the groove 4, the protruding part is completely immersed by the heat-conducting liquid, and the high-temperature liquid sodium enters the upper spherical cavity 9 and is then conducted and dissipated by the heat-conducting liquid. In this way, the temperature of the tool bit 2 (tapered head) is further reduced, or the temperature is conducted to the cylindrical portion of the tool bit 2, preventing the tapered head for machining from being excessively high in temperature.
In order to increase the sealing performance of the heat-conducting liquid in the groove 4 and realize the periodic replacement of the heat-conducting liquid, a liquid adding screw rod 10 is arranged at the upstream flow passage opening of the flow passage 7, specifically, the liquid adding screw rod 10 comprises a screw rod body, and the liquid adding screw rod 10 is in threaded connection with the upstream flow passage opening of the flow passage 7. Specifically, the inner side wall of the upstream channel opening of the flow channel 7 is provided with an internal thread matched with the screw body, the screw body is connected with the upstream channel opening in a threaded manner, and the screw body is provided with a liquid feeding cavity 12. Specifically, the liquid feeding cavity 12 is L-shaped, the orifice at one end is located on the side wall of the screw body, the orifice at the other end is located at the bottom of the screw body, when the screw body is screwed to the upstream channel opening of the flow channel 7, the orifice at the other end of the screw body enters the upstream channel opening along with the screw body, and the orifice located on the side wall of the screw body is blocked by the inner side wall of the upstream channel opening. Through the mode, sealing is achieved.
When changing the heat-conducting liquid in the recess 4, loosen the screw body, pour out the heat-conducting liquid, the heat-conducting liquid is in proper order from the lower flow port mouth of runner 7, the upstream port mouth of runner 7, discharge the internal liquid feeding cavity 12 (the accent of liquid feeding cavity 12) of screw rod, when supplementing the heat-conducting liquid with the same principle, from the accent department liquid feeding (the accent on the screw body lateral wall) of liquid feeding cavity 12 one end, and the accent (screw body bottom department) through the liquid feeding cavity 12 other end, the upstream port mouth of runner 7, the lower flow port mouth of runner 7, get into in the recess 4, realize supplementing through the above-mentioned mode, change the heat-conducting liquid.
In order to keep, the cutter bar 1 rotates stably, the liquid adding screw 10 is designed to be a countersunk head type screw, specifically, a regular hexagonal groove 6 is formed in the end portion of the screw body of the liquid adding screw 10, the material of the liquid adding screw 10 is the same as that of the cutter bar (metal alloy), the length of the liquid adding screw is the same as that of an upper flow passage opening of the flow passage 7, a wrench is clamped into the regular hexagonal groove 6 to screw the liquid adding screw 10, the wrench screws the liquid adding screw 10 into the upper flow passage opening of the flow passage 7 completely, and at the moment, the regular hexagonal groove 6 is flush with the side wall of the cutter bar 1.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a valve box accessory chamfer processing is with founding conical milling cutter, a serial communication port, including conical tool bit, tool bit fixedly connected with cutter arbor, the top of cutter arbor is seted up flutedly, be provided with a plurality of spherical cavities down in the tool bit, be provided with in the recess with spherical cavity complex down go up spherical cavity, the tank bottom of going up the relative recess of spherical cavity is upwards protruding, down through a plurality of logical chambeies intercommunication between spherical cavity and the last spherical cavity, spherical cavity intussuseption is filled with heat-conducting medium down, be equipped with in the cutter arbor with recess complex runner, the runner mouth of runner one end is located the lateral wall of cutter arbor, and the runner mouth of the runner other end is located the bottom of cutter arbor.
2. The milling cutter according to claim 1, wherein the cutter head has 3 lower spherical cavities therein, and the corresponding recess has 3 upper spherical cavities therein, the upper spherical cavities being protruded upward from the bottom of the recess by a volume half of the volume of the upper spherical cavities.
3. The milling cutter according to claim 2, wherein the opening of one end of the through cavity is communicated with the bottom of the upper spherical cavity, the other end of the through cavity is communicated with the top of the lower spherical cavity, and each upper spherical cavity is communicated with the corresponding lower spherical cavity through 4-6 through cavities.
4. The milling cutter according to claim 3, wherein the through-cavity is a cylindrical through-cavity having an inner diameter of 0.5 to 0.8 mm.
5. The milling cutter according to claim 4, wherein the flow channel is L-shaped, the lower flow channel port of the flow channel is located at the center of the bottom of the cutter bar, the upper flow channel port of the flow channel is located on the side wall of the cutter bar, and the bottom of the cutter bar is fixedly connected to the top of the groove.
6. The vertical cone type milling cutter for chamfering of valve box accessories according to claim 5, wherein the upper flow passage opening is provided with a liquid feeding screw, the liquid feeding screw comprises a screw body, the inner side wall of the upper flow passage opening is provided with an internal thread matched with the screw body, the screw body is screwed with the upper flow passage opening, and the screw body is provided with a liquid feeding cavity.
7. The milling cutter according to claim 1, wherein a key groove is formed in a top portion of the cutter bar.
8. The vertical cone milling cutter for chamfering a valve box fitting according to claim 1, wherein the cutter head is provided with a chip groove, and the chip groove is V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313488.1U CN210010514U (en) | 2019-03-13 | 2019-03-13 | Vertical cone type milling cutter for chamfering valve box accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313488.1U CN210010514U (en) | 2019-03-13 | 2019-03-13 | Vertical cone type milling cutter for chamfering valve box accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210010514U true CN210010514U (en) | 2020-02-04 |
Family
ID=69313430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920313488.1U Expired - Fee Related CN210010514U (en) | 2019-03-13 | 2019-03-13 | Vertical cone type milling cutter for chamfering valve box accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210010514U (en) |
-
2019
- 2019-03-13 CN CN201920313488.1U patent/CN210010514U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200204 |