CN221210155U - Tool for screw thread repair - Google Patents
Tool for screw thread repair Download PDFInfo
- Publication number
- CN221210155U CN221210155U CN202322989402.6U CN202322989402U CN221210155U CN 221210155 U CN221210155 U CN 221210155U CN 202322989402 U CN202322989402 U CN 202322989402U CN 221210155 U CN221210155 U CN 221210155U
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- Prior art keywords
- step hole
- connecting sleeve
- hole
- rotating shaft
- screw
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- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000003137 locomotive effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a tool for repairing screw threads, which comprises a connecting sleeve, a rotating shaft, a screw, a fixing seat and a die, wherein the connecting sleeve is of a cylindrical structure, and a first step hole, a second step hole and a third step hole are sequentially formed in a central hole of the connecting sleeve from left to right; the right end of the rotating shaft is inserted into the first step hole, the left end of the rotating shaft is connected with an external rotating device, and the rotating shaft is collinear with the axis of the connecting sleeve; a die is arranged in the third step hole; the screw rod is arranged on the fixed seat and is collinear with the axis of the connecting sleeve; the tool is simple in structure, convenient to install and good in using effect, and can greatly reduce the processing time of repairing screw threads by operators while guaranteeing quality.
Description
Technical Field
The utility model relates to the technical field of railway locomotive maintenance, in particular to a tool for repairing screw threads.
Background
The railway locomotive is provided with various long screws, after long-time use, the screws on the screws are damaged when the railway locomotive is disassembled for maintenance, the replacement cost is high, and the railway locomotive is often required to be repaired.
In the prior art, when screw threads are repaired, the screw is clamped on a chuck, then a threading tool is used, the screw threads are repaired manually one by one, the repair of a workpiece usually needs 20 minutes, and the efficiency is very low.
Disclosure of Invention
Aiming at the problems in the background technology, the utility model provides a tool for screw thread repair.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the tool for repairing the screw threads comprises a connecting sleeve, a rotating shaft, a screw, a fixing seat and a die, wherein the connecting sleeve is of a cylindrical structure, and a first step hole, a second step hole and a third step hole are sequentially formed in a center hole of the connecting sleeve from left to right; the right end of the rotating shaft is inserted into the first step hole, the left end of the rotating shaft is connected with an external rotating device, and the rotating shaft is collinear with the axis of the connecting sleeve; a die is arranged in the third step hole; the screw rod is installed on the fixing base, and the axis of screw rod and adapter sleeve collineation.
The outer wall of the connecting sleeve is respectively provided with a first pin hole and a second pin hole, the first pin hole is communicated with the third step hole, and the second pin hole is communicated with the first step hole; the first pin hole is internally provided with a first fixing pin, and the second pin hole is internally provided with a second fixing pin.
The die is arranged in the third step hole, and the die is collinear with the axis of the connecting sleeve.
The diameter of the second step hole is larger than the outer diameter of the screw thread of the screw rod; the sum of the lengths of the second step hole and the third step hole is larger than the length of the threaded end of the screw rod.
The utility model has the beneficial effects that: the utility model provides a tool for screw thread repair, which has the advantages of simple structure, convenience in installation and good use effect, and can greatly reduce the processing time of an operator for repairing screw threads while ensuring the quality.
Drawings
Fig. 1 is a cross-sectional view of the present utility model.
Fig. 2 is a top view of the die.
Fig. 3 is a cross-sectional view of the connection sleeve.
In the figure: 1. the connecting sleeve, 11, the first step hole, 12, the second step hole, 13, the third step hole, 16, the first pin hole, 17, the second pin hole, 2, the rotation axis, 3, the screw rod, 4, the fixing seat, 5, the die, 6, the first fixing pin, 7 and the second fixing pin.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The following describes in further detail the embodiments of the present utility model with reference to the accompanying drawings: the tool for screw thread repair comprises a connecting sleeve 1, a rotating shaft 2, a screw 3, a fixing seat 4 and a die 5, wherein the connecting sleeve 1 is of a cylindrical structure, and a first step hole 11, a second step hole 12 and a third step hole 13 are sequentially formed in a center hole of the connecting sleeve 1 from left to right; the outer wall of the connecting sleeve 1 is respectively provided with a first pin hole 16 and a second pin hole 17, the first pin hole 16 is communicated with the third step hole 13, and the second pin hole 17 is communicated with the first step hole 11;
The first pin hole 16 is provided with a first fixing pin 6, and the second pin hole 17 is provided with a second fixing pin 7.
The right end of the rotating shaft 2 is inserted into the first step hole 11, the left end of the rotating shaft 2 is connected with an external rotating device, and the rotating shaft 2 is collinear with the axis of the connecting sleeve 1; the outer wall of the rotating shaft 2 is provided with a pin hole A, the pin hole A is matched with a second pin hole 17, and the rotating shaft 2 is fixed in the first step hole 11 by a second pin shaft 7;
A die 5 is arranged in the third step hole 13, the die 5 is fixedly arranged in the third step hole 13 through the first pin shaft 6, and the die 5 is collinear with the axis of the connecting sleeve 1; the axes of the connecting sleeve 1, the rotating shaft 2 and the screw die 5 are collinear to prevent displacement when the rotating shaft 2 rotates, thereby influencing the processing quality of threads;
The diameter of the second step hole 12 is larger than the thread outer diameter of the screw 3; the length sum of the second step hole 12 and the third step hole 13 is larger than the length of the threaded end of the screw 3; in the process of repairing the screw thread, the threaded end of the screw rod needs to pass through the threading die 5, so that the diameter of the second step hole 12 needs to be larger than the thread outer diameter of the screw rod 3, and the length sum of the step hole 12 and the third step hole 13 needs to be larger than the length of the threaded end of the screw rod 3 so as to facilitate the screw thread repairing;
The screw rod 3 is arranged on the fixed seat 4, and the screw rod 3 is collinear with the axis of the connecting sleeve 1; in the processing process of the tool, the screw rod 3 is in line with the axis of the connecting sleeve 1, so as to prevent the deformation of the screw thread caused by form and position tolerance, thereby influencing the processing quality of the screw thread.
In the embodiment, the rotating device connected with the rotating shaft 2 is fixed on the fixed seat, the fixed seat is arranged on the guide rail, and the fixed seat can slide on the guide rail along with the rotation of the rotating shaft 2, so that the purpose of repairing threads is achieved; in a specific implementation process, the tool can also be improved, for example: the tool is arranged on a tailstock of an ordinary lathe, and a screw 3 is fixed on a chuck of the lathe; and the lathe chuck is rotated, at the moment, the connecting sleeve 1 and the rotating shaft 2 do not rotate, and in the thread repairing process, the lathe tailstock moves along with the movement of the connecting sleeve 1, so that the purpose of thread repairing is achieved.
The application process of the utility model is as follows: firstly, fixing a screw rod 3 on a fixed seat 4, installing a connecting sleeve 1 and a rotating shaft 2 together, and selecting a proper screw die 5 to be installed in a third step hole 13 of the connecting sleeve 1; rotating the rotating shaft 2 until the rotating shaft 2 contacts with the threads of the screw 3, continuing to rotate the rotating shaft 2, and at the moment, rotating the rotating shaft 2 rightwards and simultaneously moving the rotating device rightwards, thereby completing the repair of the threads; when the screw thread is repaired, the rotating shaft 2 is reversely rotated, at the moment, the connecting sleeve 1 is withdrawn from the screw rod 3, the rotating device is moved to a safe position, the screw rod 3 is taken down, and the repairing is waited for again.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
The utility model is not described in detail in the prior art.
Claims (5)
1. A tool for screw thread repair comprises a connecting sleeve (1), a rotating shaft (2), a screw (3), a fixing seat (4) and a die (5), and is characterized in that: the connecting sleeve (1) is of a cylindrical structure, and a first step hole (11), a second step hole (12) and a third step hole (13) are sequentially formed in the center hole of the connecting sleeve (1) from left to right; the right end of the rotating shaft (2) is inserted into the first step hole (11), the left end of the rotating shaft (2) is connected with an external rotating device, and the rotating shaft (2) is collinear with the axis of the connecting sleeve (1); a threading die (5) is arranged in the third step hole (13); the screw rod (3) is arranged on the fixed seat (4), and the screw rod (3) is collinear with the axis of the connecting sleeve (1).
2. The tooling for screw thread repair according to claim 1, wherein: the outer wall of the connecting sleeve (1) is respectively provided with a first pin hole (16) and a second pin hole (17), the first pin hole (16) is communicated with the third step hole (13), and the second pin hole (17) is communicated with the first step hole (11); a first fixing pin (6) is arranged in the first pin hole (16), and a second fixing pin (7) is arranged in the second pin hole (17).
3. The tooling for screw thread repair according to claim 1, wherein: the die (5) is arranged in the third step hole (13), and the die (5) is collinear with the axis of the connecting sleeve (1).
4. The tooling for screw thread repair according to claim 1, wherein: the diameter of the second step hole (12) is larger than the thread outer diameter of the screw rod (3).
5. The tooling for screw thread repair according to claim 1, wherein: the length sum of the second step hole (12) and the third step hole (13) is larger than the length of the threaded end of the screw rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322989402.6U CN221210155U (en) | 2023-11-07 | 2023-11-07 | Tool for screw thread repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322989402.6U CN221210155U (en) | 2023-11-07 | 2023-11-07 | Tool for screw thread repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221210155U true CN221210155U (en) | 2024-06-25 |
Family
ID=91547991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322989402.6U Active CN221210155U (en) | 2023-11-07 | 2023-11-07 | Tool for screw thread repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221210155U (en) |
-
2023
- 2023-11-07 CN CN202322989402.6U patent/CN221210155U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |