CN210849484U - Grinding device for internal threaded hole of workpiece - Google Patents
Grinding device for internal threaded hole of workpiece Download PDFInfo
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- CN210849484U CN210849484U CN201921605974.7U CN201921605974U CN210849484U CN 210849484 U CN210849484 U CN 210849484U CN 201921605974 U CN201921605974 U CN 201921605974U CN 210849484 U CN210849484 U CN 210849484U
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- bearing group
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- grinding
- grinding device
- internal thread
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Abstract
The utility model belongs to the equipment field is used in the work piece processing, concretely relates to work piece internal thread hole grinding device, including the grinding pin, the both ends of grinding pin run through there is oblique through-hole, and preceding bearing group and back bearing group are installed respectively to both ends around the oblique through-hole, and the front end of grinding pin is fixed with the gland corresponding with preceding bearing group, installs the main shaft between preceding bearing group and the back bearing group, and the front end of main shaft stretches out the gland and is fixed with the bistrique, and the rear end of main shaft is fixed with the shaft coupling, and the rear end of grinding pin is equipped with connecting portion. Work piece internal thread hole grinding device, prevented to take place the interference phenomenon between grinding pin and the internal thread hole, provide convenience for polishing in work piece internal thread hole.
Description
Technical Field
The utility model relates to a work piece internal thread hole grinding device belongs to the equipment field for the work piece processing.
Background
The internal thread hole of work piece finishes the back at processing, generally need polish, and current grinding device structure is unreasonable, sets up perpendicularly between bistrique and the grinding pin, because require the bistrique to follow the helix slope in internal thread hole when polishing, this slope that just leads to the fact the grinding pin, when processing to the depths in work piece internal thread hole, the grinding pin will interfere with taking place between the internal thread hole of work piece to be unfavorable for the continuation of work piece internal thread hole and polish.
SUMMERY OF THE UTILITY MODEL
According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: provides a workpiece internal thread hole grinding device which can prevent the interference phenomenon between a grinding rod and an internal thread hole.
Workpiece internal thread hole grinding device, including the grinding pin, the both ends of grinding pin run through there is oblique through-hole, bearing group and back bearing group before both ends are installed respectively around the through-hole to one side, the front end of grinding pin is fixed with the gland corresponding with preceding bearing group, installs the main shaft between preceding bearing group and the back bearing group, the front end of main shaft stretches out the gland and is fixed with the bistrique, the rear end of main shaft is fixed with the shaft coupling, the rear end of grinding pin is equipped with connecting portion.
The outer side of the gland is fixed with a protecting cover for protecting.
The front bearing group comprises six bearings which are matched side by side, a front inner spacer sleeve and a front outer spacer sleeve are respectively fixed between the inner ring and the outer ring of the third bearing and the fourth bearing, the bearings of the front bearing group can be pre-tightened, and the radial bearing capacity and the rotation precision of the front bearing group are improved.
The rear bearing group comprises two bearings which are matched side by side, a rear inner spacer sleeve and a rear outer spacer sleeve are respectively fixed between the inner rings and the outer rings of the two bearings, the bearings of the rear bearing group can be pre-tightened, and the radial bearing capacity and the rotation precision of the rear bearing group are improved.
A middle spacer bush is fixed between the front bearing group and the rear bearing group, so that the matching precision of the front bearing group and the rear bearing group can be improved.
Compared with the prior art, the utility model beneficial effect who has is:
work piece internal thread hole grinding device, prevented to take place the interference phenomenon between grinding pin and the internal thread hole, provide convenience for polishing in work piece internal thread hole.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view taken at a in FIG. 1;
fig. 3 is an enlarged view at b in fig. 1.
In the figure: 1. grinding heads; 2. a protective cover; 3. a gland; 4. a front bearing set; 5. grinding a rod; 6. an oblique through hole; 7. a middle spacer bush; 8. a main shaft; 9. a rear bearing set; 10. a coupling; 11. slotting countersunk head screws; 12. a connecting portion; 13. a front outer spacer sleeve; 14. a front inner spacer sleeve; 15. a bearing; 16. a rear outer spacer sleeve; 17. and a rear inner spacer sleeve.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings:
as shown in fig. 1 to 3, work piece internal thread hole grinding device, including grinding pin 5, grinding pin 5's both ends are run through to have oblique through-hole 6, and preceding bearing group 4 and back bearing group 9 are installed respectively to both ends around oblique through-hole 6, grinding pin 5's front end is fixed with and is organized 4 corresponding gland 3 with preceding bearing, installs main shaft 8 between preceding bearing group 4 and the back bearing group 9, and main shaft 8's front end stretches out gland 3 and is fixed with bistrique 1, and main shaft 8's rear end is fixed with shaft coupling 10 through fluting countersunk screw 11, and grinding pin 5's rear end is equipped with connecting portion 12.
In a preferred embodiment: the outer side of the gland 3 is fixed with a protecting cover 2 for protection; the front bearing group 4 comprises six bearings 15 which are matched side by side, a front inner spacer sleeve 14 and a front outer spacer sleeve 13 are respectively fixed between the inner rings and the outer rings of the third bearing 15 and the fourth bearing 15, the bearings 15 of the front bearing group 4 can be pre-tightened, and the radial bearing capacity and the rotation precision of the front bearing group 4 are improved; the rear bearing group 9 comprises two bearings 15 which are matched side by side, a rear inner spacer 17 and a rear outer spacer 16 are respectively fixed between the inner rings and the outer rings of the two bearings 15, the bearings 15 of the rear bearing group 9 can be pre-tightened, and the radial bearing capacity and the rotation precision of the rear bearing group 9 are improved; a middle spacer 7 is fixed between the front bearing group 4 and the rear bearing group 9, so that the matching precision of the front bearing group 4 and the rear bearing group 9 can be improved.
During the use, will the utility model discloses a connecting portion 12 is fixed on the motor, shaft coupling 10 and the pivot fixed connection of motor, and the motor action can drive bistrique 1 through main shaft 8 and polish to the internal thread hole of processing the work piece, because bistrique 1's inclination and the helix deflection angle who treats the internal thread hole of processing the work piece are unanimous, consequently, when polishing, relative parallel translation between grinding pin 5 and the internal thread hole of treating processing the work piece to the emergence of interference phenomenon has been avoided.
Work piece internal thread hole grinding device, prevented to take place the interference phenomenon between grinding pin 5 and the work piece internal thread hole, provide convenience for polishing in work piece internal thread hole.
Claims (5)
1. The utility model provides a work piece internal thread hole grinding device, includes grinding pin (5), its characterized in that: oblique through-hole (6) have been run through at the both ends of grinding pin (5), preceding bearing group (4) and back bearing group (9) are installed respectively at both ends around oblique through-hole (6), the front end of grinding pin (5) is fixed with gland (3) corresponding with preceding bearing group (4), install main shaft (8) between preceding bearing group (4) and back bearing group (9), gland (3) are stretched out and bistrique (1) are fixed with to the front end of main shaft (8), the rear end of main shaft (8) is fixed with shaft coupling (10), the rear end of grinding pin (5) is equipped with connecting portion (12).
2. The grinding device for the internally threaded hole of the workpiece according to claim 1, wherein: the outer side of the gland (3) is fixed with a protecting cover (2).
3. The grinding device for the internally threaded hole in the workpiece according to claim 1 or 2, characterized in that: the front bearing group (4) comprises six bearings (15) which are matched side by side, and a front inner spacer sleeve (14) and a front outer spacer sleeve (13) are respectively fixed between the inner ring and the outer ring of the third bearing (15) and the fourth bearing (15).
4. The grinding device for the internally threaded hole in the workpiece according to claim 1 or 2, characterized in that: the rear bearing group (9) comprises two bearings (15) which are matched side by side, and a rear inner spacer sleeve (17) and a rear outer spacer sleeve (16) are respectively fixed between the inner rings and the outer rings of the two bearings (15).
5. The grinding device for the internally threaded hole in the workpiece according to claim 1 or 2, characterized in that: and a middle spacer bush (7) is fixed between the front bearing group (4) and the rear bearing group (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605974.7U CN210849484U (en) | 2019-09-25 | 2019-09-25 | Grinding device for internal threaded hole of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605974.7U CN210849484U (en) | 2019-09-25 | 2019-09-25 | Grinding device for internal threaded hole of workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210849484U true CN210849484U (en) | 2020-06-26 |
Family
ID=71304245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921605974.7U Active CN210849484U (en) | 2019-09-25 | 2019-09-25 | Grinding device for internal threaded hole of workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210849484U (en) |
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2019
- 2019-09-25 CN CN201921605974.7U patent/CN210849484U/en active Active
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