CN212551758U - High-strength high-rigidity main shaft convenient for uniform cooling - Google Patents
High-strength high-rigidity main shaft convenient for uniform cooling Download PDFInfo
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- CN212551758U CN212551758U CN202021112509.2U CN202021112509U CN212551758U CN 212551758 U CN212551758 U CN 212551758U CN 202021112509 U CN202021112509 U CN 202021112509U CN 212551758 U CN212551758 U CN 212551758U
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- ring
- mandrel
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- sleeve
- close
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Abstract
The utility model discloses a high strength high rigidity main shaft convenient to even cooling relates to main shaft structure technical field, in particular to high strength high rigidity main shaft convenient to even cooling. The cooling device comprises a sleeve, wherein a hollow mandrel is rotationally connected in the sleeve, one end of the mandrel is connected with a hollow cutter communicated with the mandrel, and the other end of the mandrel is connected with a rotary joint used for feeding cooling liquid into the rotating mandrel; a liquid inlet and a first branch communicated with the liquid inlet are formed in one end, close to the cutter, of the outer side of the sleeve; two ends of the first branch are respectively communicated with corresponding second branches, liquid outlets are arranged at two ends of each second branch, and paths from the liquid inlets to the liquid outlets are equal; the liquid outlet is connected to the corresponding annular spraying nozzle, and the annular spraying nozzle is arranged around the cutter and faces the cutter. The effects of fully and uniformly cooling the cutting part, simple structure and convenient processing are achieved.
Description
Technical Field
The utility model relates to a main shaft technical field, in particular to high strength high rigidity main shaft convenient to even cooling.
Background
The main shaft is a shaft that receives power from an engine or a motor and transmits it to other members. However, in the cutting process of the machine tool, the cutting part is easy to generate high pressure, large friction and high temperature, which can seriously affect the precision and surface finish of the processed workpiece, and in order to avoid the influence of the deformation of the workpiece caused by the increase of heat on the processing precision and the damage of the cutter, the cutter needs to be cooled timely, fully and uniformly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high strength high rigidity main shaft convenient to even refrigerated, it can carry out abundant, even cooling, and simple structure, the processing of being convenient for to the cutting part.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a high-strength and high-rigidity main shaft convenient for uniform cooling comprises a sleeve, wherein a hollow mandrel is rotationally connected in the sleeve, one end of the mandrel is connected with a hollow cutter communicated with the mandrel, and the other end of the mandrel is connected with a rotary joint used for feeding cooling liquid into the rotating mandrel;
a liquid inlet and a first branch communicated with the liquid inlet are formed in one end, close to the cutter, of the outer side of the sleeve; two ends of the first branch are respectively communicated with corresponding second branches, liquid outlets are arranged at two ends of each second branch, and paths from the liquid inlets to the liquid outlets are equal;
the liquid outlet is connected to the corresponding annular spraying nozzle, and the annular spraying nozzle is arranged around the cutter and faces the cutter.
Furthermore, the periphery of the sleeve is sequentially connected with a first disc, a separating ring and a second disc along the length direction of the sleeve;
a semicircular ring is arranged on one end face of the first disc close to the separating ring, a liquid inlet communicated with the midpoint of the semicircular ring is arranged on the other end face of the first disc in a penetrating manner, and the semicircular ring and the separating ring form a first channel;
the separating ring is provided with through holes communicated with the two ends of the semicircular ring, and the circle center of the separating ring is in the same straight line with the two through holes;
two small circular rings are arranged on the end face of one end, close to the separating ring, of the second disc, liquid outlets communicated with the two ends of the small circular rings penetrate through the end face of the other end of the second disc, the middle parts of the small circular rings are communicated with the corresponding through holes, and the small circular rings and the separating ring form a second channel.
Further, the small circular ring central angle is 45 degrees.
Furthermore, a water retaining ring is connected to the end, close to the cutter, of the mandrel, the outer diameter of the water retaining ring is larger than the inner diameter of the end, close to the cutter, of the sleeve, a plurality of rings of retaining rings are arranged on one side, away from the cutter, of the water retaining ring, and a plurality of rings of annular grooves matched with the retaining rings are formed in the end, close to the cutter, of the sleeve.
Furthermore, the water retaining ring is provided with an inclined hole, one end of the inclined hole, which is close to the sleeve, is positioned at the inner side of the corresponding retaining ring, and the end of the inclined hole penetrates to the other end along the increasing direction of the outer diameter of the retaining ring.
Furthermore, the mandrel is connected with a baffle positioned on one side of the water retaining ring away from the annular groove, and the baffle is arranged outside the inclined hole in a blocking manner and has a gap with the end part of the inclined hole.
Furthermore, one side of the baffle close to the water retaining ring is conical, and one end of the baffle close to the water retaining ring is a small end.
Further, the mandrel is rotatably connected into the sleeve through a plurality of NN double-row roller bearings.
To sum up, the utility model discloses following beneficial effect has:
through uniform annular spraying cooling and central water outlet cooling, the stability of the main shaft is improved, the axial rigidity and the radial rigidity of the main shaft are improved, the processing is convenient, and the possibility that cooling liquid enters the main shaft from the outside is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of portion A of FIG. 1;
FIG. 3 is a schematic structural view of a first disk of the present invention;
fig. 4 is a schematic structural diagram of a second disc of the present invention.
In the figure, 1, a sleeve; 11. an annular groove; 2. a mandrel; 21. a baffle plate; 3. a rotary joint; 4. a first disc; 41. a semicircular ring; 42. a liquid inlet; 5. a spacer ring; 6. a second disc; 61. a small circular ring; 62. a liquid outlet; 63. a circular spray nozzle; 7. a water retaining ring; 71. a baffle ring; 72. and (4) inclined holes.
Detailed Description
The following description will be further described with reference to the accompanying drawings, which are not intended to limit the present invention.
A high-strength and high-rigidity main shaft convenient for uniform cooling is disclosed, as shown in figure 1, and comprises a sleeve 1, wherein a hollow mandrel 2 is rotatably connected in the sleeve 1 through a front bearing seat assembly and a rear bearing seat assembly, and the front bearing seat assembly and the rear bearing seat assembly are NN double-row roller bearings so as to increase axial rigidity and radial rigidity, increase cutting force and improve efficiency; one end of the mandrel 2 is connected with a hollow cutter communicated with the mandrel through a broach mechanism, and the other end of the mandrel is connected with a rotary joint 3 used for sending cooling liquid into the rotating mandrel 2.
As shown in fig. 2, a water retaining ring 7 is connected to the outside of one end of the mandrel 2 close to the cutter, the outer diameter of the water retaining ring 7 is larger than the inner diameter of one end of the sleeve 1 close to the cutter, a ring of retaining ring 71 is arranged on one side of the water retaining ring 7 away from the cutter, and a plurality of rings of annular grooves 11 matched with the retaining ring 71 are arranged on one end of the sleeve 1 close to the cutter.
As shown in fig. 2, in order to facilitate the water in the labyrinth of the water-stop ring 7 to be discharged, an inclined hole 72 is formed on the water-stop ring 7, one end of the inclined hole 72, which is close to the sleeve 1, is located at the inner side of the corresponding stop ring 71, and the end penetrates to the other end along the increasing direction of the outer diameter of the stop ring 71; in order to reduce the possibility that external water enters the spindle from the inclined hole 72, the spindle 2 is connected with a baffle plate 21 which is positioned on one side of the water retaining ring 7 far away from the annular groove 11, and the baffle plate 21 is blocked outside the inclined hole 72 and has a gap with the end part of the inclined hole 72, so that the spindle is particularly suitable for a vertical machine tool.
As shown in fig. 2, one side of the baffle 21 close to the water retaining ring 7 is tapered, and one end close to the water retaining ring 7 is a small end; one side of the water retaining ring 7, which is close to the baffle 21, is provided with a cone shape matched with the baffle 21, and the outer periphery of the side is provided with a circle of abdicating grooves, so that a gap is reserved between the end part of the inclined hole 72 and the baffle 21.
As shown in fig. 2, a liquid inlet 42 and a first branch communicated with the liquid inlet 42 are arranged at one end of the outer side of the sleeve 1 close to the cutter; two ends of the first branch are respectively communicated with corresponding second branches, two ends of each second branch are provided with liquid outlets 62, and paths from the liquid inlet 42 to the liquid outlets 62 are equal;
as shown in fig. 3 and 4, the outer periphery of the sleeve 1 is sequentially connected with a first disc 4, a separating ring 5 and a second disc 6 along the length direction thereof, and the three are positioned and fixed on a fixed flange outside the sleeve 1 through screws;
one end face of the first disc 4 close to the separating ring 5 is provided with a 180-degree semicircular ring 41, the other end face penetrates through a liquid inlet 42 communicated with the midpoint of the semicircular ring 41, and the semicircular ring 41 and the separating ring 5 form a first channel;
the separating ring 5 is provided with through holes communicated with the two ends of the semicircular ring 41, the circle center of the through holes is in the same straight line with the two through holes, and the through holes are respectively aligned with the two ends of the semicircular ring 41;
two small circular rings 61 are arranged on the end face of one end of the second disc 6 close to the separating ring 5, and the central angle of each small circular ring 61 is 45 degrees; a liquid outlet 62 communicated with two ends of the small circular ring 61 penetrates through the end face of the other end, the middle part of the small circular ring 61 is communicated with the corresponding through hole, and the small circular ring 61 and the separating ring 5 form a second channel.
As shown in fig. 2, the 4 liquid outlets 62 are respectively connected to 4 corresponding annular spraying nozzles 63, the annular spraying nozzles 63 are disposed around the cutter and facing the cutter, and are universal nozzles to facilitate angle and height adjustment.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications or equivalent substitutions within the spirit and scope of the present invention, and such modifications or equivalent substitutions should also be considered as falling within the scope of the present invention.
Claims (8)
1. The utility model provides a high strength high rigidity main shaft convenient to even cooling which characterized in that: the cooling device comprises a sleeve (1), wherein a hollow mandrel (2) is rotationally connected in the sleeve (1), one end of the mandrel (2) is connected with a hollow cutter communicated with the mandrel, and the other end of the mandrel (2) is connected with a rotary joint (3) used for feeding cooling liquid into the rotating mandrel (2);
a liquid inlet (42) and a first channel communicated with the liquid inlet (42) are arranged at one end, close to the cutter, of the outer side of the sleeve (1); two ends of the first branch are respectively communicated with corresponding second branches, two ends of each second branch are provided with liquid outlets (62), and paths from the liquid inlet (42) to the liquid outlets (62) are equal;
the liquid outlet (62) is connected with the corresponding annular spraying nozzle (63), and the annular spraying nozzle (63) is arranged around the cutter and faces the cutter.
2. A high strength, high rigidity spindle facilitating uniform cooling according to claim 1 wherein: the periphery of the sleeve (1) is sequentially connected with a first disc (4), a separating ring (5) and a second disc (6) along the length direction of the sleeve;
a semicircular ring (41) is arranged on the end face of one end, close to the separating ring (5), of the first disc (4), a liquid inlet (42) communicated with the midpoint of the semicircular ring (41) penetrates through the other end face, and the semicircular ring (41) and the separating ring (5) form a first channel;
the separating ring (5) is provided with through holes communicated with the two ends of the semicircular ring (41), and the circle center of the through holes is in the same straight line with the two through holes;
two small circular rings (61) are arranged on the end face of one end, close to the separating ring (5), of the second disc (6), liquid outlets (62) communicated with the two ends of the small circular rings (61) penetrate through the end face of the other end of the second disc, the middle parts of the small circular rings (61) are communicated with corresponding through holes, and the small circular rings (61) and the separating ring (5) form a second branch channel.
3. A high strength, high rigidity spindle facilitating uniform cooling according to claim 2 wherein: the central angle of the small circular ring (61) is 45 degrees.
4. A high-strength high-rigidity spindle facilitating uniform cooling according to claim 2 or 3, wherein: the water retaining ring (7) is connected to the outer portion of one end, close to the cutter, of the mandrel (2), the outer diameter of the water retaining ring (7) is larger than the inner diameter of one end, close to the cutter, of the sleeve (1), a plurality of rings of retaining rings (71) are arranged on one side, far away from the cutter, of the water retaining ring (7), and a plurality of rings of annular grooves (11) matched with the retaining rings (71) are formed in one end, close to the cutter, of the.
5. A high strength, high rigidity spindle facilitating uniform cooling according to claim 4 wherein: the water retaining ring (7) is provided with an inclined hole (72), one end of the inclined hole (72) close to the sleeve (1) is located on the inner side of the corresponding retaining ring (71), and the end penetrates to the other end along the increasing direction of the outer diameter of the retaining ring (71).
6. A high strength, high rigidity spindle for facilitating uniform cooling according to claim 5 wherein: the mandrel (2) is connected with a baffle (21) which is positioned on one side of the water retaining ring (7) far away from the annular groove (11), the baffle (21) is arranged outside the inclined hole (72) in a blocking mode, and a gap is reserved between the baffle (21) and the end of the inclined hole (72).
7. A high strength, high rigidity spindle for facilitating uniform cooling according to claim 6 wherein: one side of the baffle (21) close to the water retaining ring (7) is conical, and one end close to the water retaining ring (7) is a small end.
8. A high strength, high rigidity spindle facilitating uniform cooling according to claim 1 wherein: the mandrel (2) is rotatably connected into the sleeve (1) through a plurality of NN double-row roller bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021112509.2U CN212551758U (en) | 2020-06-16 | 2020-06-16 | High-strength high-rigidity main shaft convenient for uniform cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021112509.2U CN212551758U (en) | 2020-06-16 | 2020-06-16 | High-strength high-rigidity main shaft convenient for uniform cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212551758U true CN212551758U (en) | 2021-02-19 |
Family
ID=74634906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021112509.2U Active CN212551758U (en) | 2020-06-16 | 2020-06-16 | High-strength high-rigidity main shaft convenient for uniform cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212551758U (en) |
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2020
- 2020-06-16 CN CN202021112509.2U patent/CN212551758U/en active Active
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