CN219746564U - Grinding device for grinding bottom surface of thread - Google Patents
Grinding device for grinding bottom surface of thread Download PDFInfo
- Publication number
- CN219746564U CN219746564U CN202321342818.2U CN202321342818U CN219746564U CN 219746564 U CN219746564 U CN 219746564U CN 202321342818 U CN202321342818 U CN 202321342818U CN 219746564 U CN219746564 U CN 219746564U
- Authority
- CN
- China
- Prior art keywords
- grinding
- nut
- planes
- column
- feed nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004576 sand Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model belongs to the technical field of machining, and discloses a grinding device for grinding a threaded bottom surface, which comprises a feed nut (1) and a grinding column (2); the feeding nut (1) is arranged in an internal threaded hole to be machined of the part (3); the feeding nut (1) is internally provided with a through hole in a hollow mode, the side wall of the upper end of the feeding nut is provided with two planes, and the positions of the two planes are opposite; four small planes are arranged at the upper end of the grinding column (2), a radial extension part is arranged at the lower end face of the grinding column, and the extension part is arranged between the lower end face of the feed nut (1) and the bottom face of the internal threaded hole to be processed; the bottom surface of the extension part is provided with grinding sand. The technical scheme of the utility model has simple and reasonable structure, is convenient and quick to use, and effectively solves the problem that the bottom surface of the screw thread cannot achieve the sealing effect due to the poor roughness of the bottom surface of the screw thread of the part and the non-vertical problem of the axis of the screw thread and the bottom surface.
Description
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to a grinding device for grinding a threaded bottom surface.
Background
In the mechanical structure, a sealing mode of hiding the sword is adopted when the red copper gasket is added on the bottom surface of the thread for sealing, the red copper gasket is filled on the bottom surface of the internal thread during sealing, the bolt is arranged on the internal thread, and the bolt is screwed down, so that the bottom surface of the bolt is tightly pressed on the red copper gasket, and the sealing effect is achieved. In the assembly process, the sealing effect is often poor due to poor roughness of the bottom surface of the internal thread or non-perpendicular relation between the bottom surface of the thread and the thread axis. Therefore, a set of screw thread bottom surface grinding device is needed to be designed, and the problem that the sealing effect is poor due to poor roughness of the inner screw thread bottom surface or non-perpendicular screw thread bottom surface and screw thread axis in the assembly process is solved.
Disclosure of Invention
First, the technical problem to be solved
The utility model aims to solve the technical problems that: in the mechanical seal, the problem of poor sealing effect is caused by poor roughness of the bottom surface of the internal thread or non-perpendicularity of the bottom surface of the thread and the thread axis
(II) technical scheme
In order to solve the above technical problems, the present utility model provides a grinding device for grinding a threaded bottom surface, which is characterized by comprising a feed nut 1 and a grinding column 2; the feed nut 1 is arranged in an internal threaded hole to be machined of the part 3; the feed nut 1 is internally provided with a through hole in a hollow manner, the side wall of the upper end of the feed nut is provided with two planes, and the positions of the two planes are opposite; four small planes are arranged at the upper end of the grinding column 2, a radial extension part is arranged at the lower end face of the grinding column, and the extension part is arranged between the lower end face of the feed nut 1 and the bottom face of the internal threaded hole to be processed; the bottom surface of the extension part is provided with grinding sand.
Wherein, the two ends of the grinding column 2 are coaxial.
Wherein the external thread of the feed nut 1 is coaxial with its intermediate through hole.
(III) beneficial effects
Compared with the prior art, the utility model has the following beneficial effects: the structure is simple and reasonable, and the sealing effect of the bottom surface of the screw thread can not be achieved due to the fact that the roughness of the bottom surface of the screw thread of the part is poor and the axis of the screw thread is not perpendicular to the bottom surface.
Drawings
FIG. 1 is a schematic view of the structure of a part to be polished according to the present utility model;
the structure of the internally threaded hole of the part in FIG. 2 is schematically shown;
FIG. 3 is a schematic view of the construction of the feed nut;
FIG. 4 is a schematic view of the structure of the polishing column;
wherein, 1-feeding the nut; 2-a grinding column; 3-parts.
Detailed Description
For the purposes of clarity, content, and advantages of the present utility model, a detailed description of the embodiments of the present utility model will be described in detail below with reference to the drawings and examples.
As shown in fig. 1 to 4, the polishing apparatus for polishing a thread bottom surface of the present embodiment includes: a feed nut 1 and a grinding column 2.
Wherein, the upper surface of the feed nut 1 is processed with two planes, which are used for clamping a spanner when the feed nut is screwed down; when the feed nut 1 is processed, the perpendicularity between the external thread of the feed nut and the bottom surface and the coaxiality between the external thread and the middle through hole are ensured. Four small planes are processed at the small end part of the grinding column 2 and are used for clamping a spanner for grinding; the coaxiality of the excircle of the large end and the excircle of the small end and the verticality of the upper plane and the lower plane of the large end cylinder of the grinding column are ensured when the grinding column 2 is processed. During operation, the grinding column 2 is arranged in the feed nut 1, grinding sand is smeared on the bottom surface of the grinding column 2, the feed nut 1 and the grinding column 2 are arranged in the threaded hole of the part 3 together, the bottom plane of the big end of the grinding column is contacted with the bottom surface of the thread, and the grinding column is rotated, so that the grinding function of the utility model is completed.
The working process is as follows:
during grinding, the grinding column 2 and the feed nut 1 are sequentially arranged in the threaded hole of the part 3, grinding sand is coated on the bottom 2 of the grinding column before the grinding column is arranged, the feed nut 1 is screwed by a spanner, the bottom surface of the grinding column 2 is tightly attached to the threaded bottom surface of the part 3, the grinding column 2 is rotated by the spanner to grind, and the roughness of the threaded bottom surface of the part 3 and the perpendicularity of the threaded bottom surface and the threaded axis are corrected through grinding.
The grinding device disclosed by the utility model has a simple and reasonable structure, is convenient and quick to use, and effectively solves the problem that the bottom surface of the screw thread cannot achieve a sealing effect due to the fact that the roughness of the bottom surface of the screw thread of a part is poor and the axis of the screw thread is not perpendicular to the bottom surface.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (3)
1. A grinding device for grinding a threaded bottom surface, characterized by comprising a feed nut (1) and a grinding column (2); the feeding nut (1) is arranged in an internal threaded hole to be machined of the part (3); the feeding nut (1) is internally provided with a through hole in a hollow mode, the side wall of the upper end of the feeding nut is provided with two planes, and the positions of the two planes are opposite; four small planes are arranged at the upper end of the grinding column (2), a radial extension part is arranged at the lower end face of the grinding column, and the extension part is arranged between the lower end face of the feed nut (1) and the bottom face of the internal threaded hole to be processed; the bottom surface of the extension part is provided with grinding sand.
2. Grinding device for grinding threaded bottom surfaces according to claim 1, characterized in that the ends of the grinding column (2) are coaxial.
3. Grinding device for grinding a threaded bottom surface according to claim 1, characterized in that the external thread of the feed nut (1) is coaxial with its intermediate through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321342818.2U CN219746564U (en) | 2023-05-30 | 2023-05-30 | Grinding device for grinding bottom surface of thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321342818.2U CN219746564U (en) | 2023-05-30 | 2023-05-30 | Grinding device for grinding bottom surface of thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219746564U true CN219746564U (en) | 2023-09-26 |
Family
ID=88090006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321342818.2U Active CN219746564U (en) | 2023-05-30 | 2023-05-30 | Grinding device for grinding bottom surface of thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219746564U (en) |
-
2023
- 2023-05-30 CN CN202321342818.2U patent/CN219746564U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205021244U (en) | A milling fixture that is used for centering clamping part axis of reference on lathe | |
| CN201856161U (en) | Special tool for repairing sealing surface of high-pressure equipment | |
| CN105345171A (en) | Positioning and clamping device | |
| CN219746564U (en) | Grinding device for grinding bottom surface of thread | |
| CN208214843U (en) | A kind of portable hook pressure plate | |
| CN113334582A (en) | Graphite bipolar plate processing device and processing method | |
| CN205342642U (en) | Rotatory jar presser device | |
| CN111604813A (en) | Composite nozzle abrasive flow polishing clamp | |
| CN212497219U (en) | Composite nozzle abrasive flow polishing clamp | |
| CN113369953A (en) | Clamp for machining excircle of shim | |
| CN212169726U (en) | Novel generator shaft machining positioning tool | |
| CN207127533U (en) | Special-shaped part connects mouth finishing fixture | |
| CN207086935U (en) | A kind of multi-cutter-position boring cutter | |
| CN102218669A (en) | Structure of integrated debugging pressing plate | |
| CN207119870U (en) | Screw tap clamping device | |
| CN207239868U (en) | The vertical compression fixture that a kind of middle-size and small-size lens cold working of optics uses | |
| CN216883021U (en) | Tool for grinding inner diameter of sealing arc sheet of 1-inch plug valve | |
| CN219094556U (en) | Low-impact grinding machine for processing permanent magnet motor shaft | |
| CN206405552U (en) | A kind of positioning shaft sleeve clamping device | |
| CN209774365U (en) | Polishing tool and polishing equipment comprising same | |
| CN216461992U (en) | Device for accurately positioning connecting rod | |
| CN220073930U (en) | Milling machine fixture for machining pillow-shaped workpiece | |
| CN218953769U (en) | Slotted binding screw | |
| CN220161832U (en) | Quick-change milling fixture for shaft type rotary parts | |
| CN217668074U (en) | Adapter thread turning clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |