CN210451822U - Supporting mechanism capable of keeping linear motion precision of boring and milling spindle boring rod - Google Patents
Supporting mechanism capable of keeping linear motion precision of boring and milling spindle boring rod Download PDFInfo
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- CN210451822U CN210451822U CN201920985731.4U CN201920985731U CN210451822U CN 210451822 U CN210451822 U CN 210451822U CN 201920985731 U CN201920985731 U CN 201920985731U CN 210451822 U CN210451822 U CN 210451822U
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- box body
- supporting seat
- boring bar
- screw rod
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Abstract
The utility model discloses a can keep supporting mechanism of boring and milling main shaft boring bar motion straight line precision, include: the device comprises a box body, a boring rod, a main shaft, a supporting seat and a screw rod mechanism, wherein the main shaft is arranged at one end of the box body, the boring rod is slidably arranged in the main shaft, the other end of the boring rod is connected with the supporting seat, the supporting seat is slidably arranged in the box body, the screw rod mechanism is arranged between the supporting seat and the box body, a sliding cavity is arranged at the position of the supporting seat where the box body is slidably arranged, a guide rail is arranged on the sliding cavity, and a heavy-load sliding block is arranged on the guide rail. The utility model discloses carry out axial motion with four guide rail supporting boring bars, on the headstock box was used through four guide rails to the cutting impulsive force that produces during with the boring bar cutting, make the motion change of main shaft boring bar control all the time at very little scope, strengthened the rigidity of boring bar, improved the motion accuracy of boring bar, promoted the efficiency of cutting process and the precision of processing product.
Description
Technical Field
The utility model relates to a machining equipment technical field specifically is a can keep supporting mechanism of boring and milling main shaft boring bar motion straight line precision.
Background
The boring machine is mainly used for processing high-precision holes or finishing a plurality of holes by one-time positioning, can also be used for processing other processing surfaces related to hole finishing, and can be used for processing the processing precision and the surface quality of drilling, milling and cutting by using different tools and accessories which are higher than those of a drilling machine. On a common boring and milling machine, different boring dies and boring rods are switched to finish the boring and finishing of the main shaft hole and the camshaft hole.
At present, in the boring processing process, the front end of a boring bar of a boring and milling spindle is supported by matching of a spindle inner shaft sleeve and the boring bar so as to ensure the extension precision of the boring bar, but during processing and cutting, the rear end of the boring bar can generate vibration caused by processing impact force, the extension or retraction precision of the boring bar during movement is influenced, the surface roughness of a processed workpiece is increased, the dimensional tolerance is increased, a boring cutter is easy to damage, and the vibration of the boring bar can also cause the vibration of a machine tool to cause the damage of the machine tool.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can keep the supporting mechanism of boring and milling main shaft boring bar motion straight line precision to four guide rail supporting boring bars carry out axial motion, with the boring bar cutting add the cutting impulsive force that produces on the headstock box is used through four guide rails during processing, make the motion change of main shaft boring bar control all the time at very little scope, strengthened the rigidity of boring bar, improved the motion precision of boring bar, promoted the efficiency of cutting processing and the precision of processing product.
In order to achieve the purpose of the invention, the utility model adopts the following technical scheme: a supporting mechanism capable of maintaining the linear motion precision of a boring and milling spindle boring bar comprises: the device comprises a box body, a boring rod, a main shaft, a supporting seat and a screw rod mechanism, wherein the main shaft is arranged at one end of the box body, the boring rod is slidably arranged in the main shaft, the other end of the boring rod is connected with the supporting seat, the supporting seat is slidably arranged in the box body, the screw rod mechanism is arranged between the supporting seat and the box body, a sliding cavity is arranged at the position of the supporting seat where the box body is slidably arranged, a guide rail is arranged on the sliding cavity, and a heavy-load sliding block is arranged on the guide rail.
Preferably, four guide rails are arranged in the sliding cavity, the guide rails are symmetrically distributed in the sliding cavity, the supporting seat is installed between the four guide rails through a heavy-load sliding block, and the axial positioning of the supporting seat is adjusted.
Preferably, the two guide rails are arranged at an angle of 45 degrees with respect to a central connecting line of the boring bar and the screw rod, and the two guide rails are arranged at an angle of 135 degrees with respect to the central connecting line of the boring bar and the screw rod.
Preferably, the screw rod mechanism is composed of a screw rod and a nut seat installed on the screw rod, the nut seat is installed on the supporting seat, and two ends of the screw rod are installed on the end faces of the two end pairs of the sliding cavity.
Preferably, the screw rod, the guide rail and the boring bar are parallel to each other.
Preferably, the box body is further provided with a driving motor outside, and the driving motor is connected with the screw rod mechanism.
Preferably, the guide rail is a ball guide rail.
Compared with the prior art, the supporting mechanism which can keep the linear motion precision of the boring and milling spindle boring bar has the following beneficial effects: adopt the utility model discloses a can keep the supporting mechanism of boring and milling main shaft boring bar motion straight line precision sets up heavy load sliding block and guide rail in box slidable mounting bearing position, makes the motion change of boring bar control all the time in very little scope, has reinforceed the rigidity of boring bar, has improved the motion precision of boring bar, and when the boring bar stretches out 700mm, the sag can be reduced to 0.007mm 700mm by 0.02mm 700 mm.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of a supporting mechanism of the present invention capable of maintaining the linear motion precision of a boring and milling spindle boring bar;
fig. 2 is a schematic structural diagram of a supporting mechanism capable of maintaining the linear motion precision of the boring and milling spindle boring bar in the embodiment.
Reference numerals: 1. a guide rail; 2. a box body; 3. boring a rod; 4. a supporting seat; 6. a screw mechanism; 61. a lead screw; 62. a nut seat; 7. a slide chamber; 8. a main shaft; 9. and (4) reloading the sliding block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic cross-sectional view of a supporting mechanism capable of maintaining the linear motion precision of a boring and milling spindle boring bar, and the supporting mechanism comprises: the device comprises a box body 2, a boring rod 3, a main shaft 8, a supporting seat 4 and a screw rod mechanism 6, wherein the main shaft 8 is installed at one end of the box body 2, the boring rod 3 is installed inside the main shaft 8 in a sliding mode, the other end of the boring rod 3 is connected with the supporting seat 4, the supporting seat 4 is installed in the box body 2 in a sliding mode, the screw rod mechanism 6 is installed between the supporting seat 4 and the box body 2, a sliding cavity 7 is arranged at the position, where the supporting seat 4 is installed in the box body 2 in a sliding mode, a guide rail 1 is arranged on the sliding cavity 7.
The screw rod mechanism 6 is composed of a screw rod 61 and a nut seat 62 arranged on the screw rod 61, the nut seat 62 is arranged on the supporting seat 4, and two ends of the screw rod 61 are arranged on end surfaces of two end pairs of the sliding cavity 7. And a driving motor is also arranged outside the box body 2 and is connected with the screw rod mechanism 6. In the present embodiment, the guide rail 1 is a ball guide rail 1. As shown in fig. 2, which is a schematic structural diagram of a supporting mechanism capable of maintaining the linear motion precision of a boring and milling spindle boring bar, four guide rails 1 are arranged in a sliding cavity 7, the guide rails 1 are symmetrically distributed in the sliding cavity 7, a supporting seat 4 is installed between the four guide rails 1 through a heavy-load sliding block 9, and the axial positioning of the supporting seat 4 is adjusted.
And four guide rails 1 arranged in the sliding cavity 7, wherein two guide rails 1 are arranged at an included angle of 45 degrees with the central connecting line of the boring bar 3 and the screw rod 61, and two guide rails 1 are arranged at an included angle of 135 degrees with the central connecting line of the boring bar 3 and the screw rod 61. The screw 61, the guide rail 1 and the boring bar 3 are parallel to each other. Four ball guide rails 1 and heavy-load sliding blocks 9 fixed on the guide rails 1 are assembled between a box body 2 and a supporting seat 4, when a feed screw 61 pushes a boring rod 3 to move, one end of the boring rod 3, which is fixed with the supporting seat 4, vibrates due to the generation of machining impact, the cutting impact is limited on the box body 2 by adjusting the height of the heavy-load sliding blocks 9 on the four ball guide rails 1, the four hard rails distributed at angles enable the movement change of the boring rod 3 to be controlled in a small range, and when the boring rod 3 extends out of 700mm, the sagging amount is reduced from 0.02mm/700mm to 0.007mm/700 mm.
The above is the preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as the protection scope of the present invention.
Claims (7)
1. A supporting mechanism capable of keeping the linear motion precision of a boring and milling spindle boring bar is characterized in that: the method comprises the following steps: the novel boring machine comprises a box body (2), a boring rod (3), a main shaft (8), a supporting seat (4) and a screw rod mechanism (6), wherein the main shaft (8) is installed at one end of the box body (2), the boring rod (3) is installed inside the main shaft (8) in a sliding mode, the other end of the boring rod (3) is connected with the supporting seat (4), the supporting seat (4) is installed in the box body (2) in a sliding mode, the screw rod mechanism (6) is installed between the supporting seat (4) and the box body (2), a sliding cavity (7) is arranged at the position, where the supporting seat (4) is installed in the box body (2) in a sliding mode, a guide rail (1) is arranged on the guide rail (1), and a heavy-load sliding block (9) is arranged on the guide.
2. The supporting mechanism capable of maintaining the linear motion precision of the boring and milling spindle boring bar according to claim 1, is characterized in that: four guide rails (1) are arranged in the sliding cavity (7), the guide rails (1) are distributed in the sliding cavity (7) in a symmetrical mode, and the bearing seat (4) is installed between the four guide rails (1) through a heavy-load sliding block (9) and the axial positioning of the bearing seat (4) is adjusted.
3. The supporting mechanism capable of maintaining the linear motion precision of the boring and milling spindle boring bar as claimed in claim 2, is characterized in that: the two guide rails (1) are arranged at an angle of 45 degrees with the central connecting line of the boring rod (3) and the lead screw (61), and the two guide rails (1) are arranged at an angle of 135 degrees with the central connecting line of the boring rod (3) and the lead screw (61).
4. The supporting mechanism capable of maintaining the linear motion precision of the boring and milling spindle boring bar according to claim 1, is characterized in that: the screw rod mechanism (6) is composed of a screw rod (61) and nut seats (62) installed on the screw rod (61), the nut seats (62) are installed on the supporting seat (4), and two ends of the screw rod (61) are installed on end faces of two end pairs of the sliding cavity (7).
5. The supporting mechanism capable of maintaining the linear motion precision of the boring and milling spindle boring bar as claimed in claim 4, wherein: the lead screw (61), the guide rail (1) and the boring bar (3) are parallel to each other.
6. The supporting mechanism capable of maintaining the linear motion precision of the boring and milling spindle boring bar according to claim 1, is characterized in that: and a driving motor is further arranged outside the box body (2), and the driving motor is connected with the screw rod mechanism (6).
7. The supporting mechanism capable of maintaining the linear motion precision of the boring and milling spindle boring bar according to claim 1, is characterized in that: the guide rail (1) adopts a ball guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985731.4U CN210451822U (en) | 2019-06-27 | 2019-06-27 | Supporting mechanism capable of keeping linear motion precision of boring and milling spindle boring rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985731.4U CN210451822U (en) | 2019-06-27 | 2019-06-27 | Supporting mechanism capable of keeping linear motion precision of boring and milling spindle boring rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210451822U true CN210451822U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920985731.4U Active CN210451822U (en) | 2019-06-27 | 2019-06-27 | Supporting mechanism capable of keeping linear motion precision of boring and milling spindle boring rod |
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| CN (1) | CN210451822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153737A (en) * | 2019-06-27 | 2019-08-23 | 江苏大卫精工科技有限公司 | A kind of supporting device that can keep boring and milling main shaft boring bar line of motion precision |
-
2019
- 2019-06-27 CN CN201920985731.4U patent/CN210451822U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153737A (en) * | 2019-06-27 | 2019-08-23 | 江苏大卫精工科技有限公司 | A kind of supporting device that can keep boring and milling main shaft boring bar line of motion precision |
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