CN219901270U - Special fixture capable of rapidly disassembling external thread annular thin-wall workpiece - Google Patents
Special fixture capable of rapidly disassembling external thread annular thin-wall workpiece Download PDFInfo
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- CN219901270U CN219901270U CN202223268969.6U CN202223268969U CN219901270U CN 219901270 U CN219901270 U CN 219901270U CN 202223268969 U CN202223268969 U CN 202223268969U CN 219901270 U CN219901270 U CN 219901270U
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- 238000005520 cutting process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a special fixture capable of rapidly disassembling an external thread annular thin-wall workpiece. The clamping device aims to solve the clamping problem required by burr treatment at the cutting-off position of a circular ring type external thread thin-wall workpiece, and comprises a body (1), a left-handed positioning device (2) and a clamping thread sleeve (3); the left end of the body (1) is a light column and is used for clamping and clamping a chuck of a machine tool spindle, and the right end of the body is externally threaded and is connected with an internal thread of a clamping thread sleeve (3); the right end internal thread is connected with the external thread of the left-handed positioning device (2). The left-handed external thread at the left end of the left-handed positioning device (2) is connected with the left-handed internal thread at the right end of the body (1), and the center of the right end is a hexagonal hole; the left end internal thread of the clamping thread sleeve (3) is connected with the right end external thread of the body (1), and the right end internal thread is matched with the external thread of the workpiece.
Description
Technical Field
The utility model belongs to the field of clamping of externally threaded annular workpieces of numerically controlled lathes, and relates to a special clamping and quick-disassembling tool clamp.
Background
The ring-shaped external thread workpiece is widely used in the mechanical field, burrs are required to be removed at the cutting part when the workpiece is cut, and the external thread workpiece belongs to a thin-wall part, so that the external diameter is difficult to directly clamp. Certain key workpieces of a company are such workpieces and are produced in batch. In order to improve production efficiency and processing quality, the fixture is designed.
Defects of the traditional technology:
the traditional machining method is that after cutting, a machining center is used for manufacturing a clamping fixture to clamp a workpiece, and a boring cutter is used for rotating at the burr of the workpiece to remove the burr. The method needs 4-point clamping when clamping the workpiece, has small clamping area for avoiding interference with a cutter, is easy to generate uneven overall clamping force, causes uneven deburring, influences the product quality, and has low production efficiency.
Disclosure of Invention
The utility model aims to solve the clamping problem required by burr treatment at the cutting-off position of a circular ring type external thread thin-wall workpiece, and provides a special fixture capable of rapidly disassembling the circular ring type external thread thin-wall workpiece.
The utility model aims at realizing the following technical scheme: the special fixture capable of rapidly disassembling the external thread annular thin-wall workpiece is characterized by comprising a body (1), a left-handed positioning device (2) and a clamping thread sleeve (3); the left end of the body (1) is a light column and is used for clamping and clamping a chuck of a machine tool spindle, and the right end of the body is externally threaded and is connected with an internal thread of a clamping thread sleeve (3); the right end internal thread is connected with the external thread of the left-handed positioning device (2). The left-handed external thread at the left end of the left-handed positioning device (2) is connected with the left-handed internal thread at the right end of the body (1), and the center of the right end is a hexagonal hole; the left end internal thread of the clamping thread sleeve (3) is connected with the right end external thread of the body (1), and the right end internal thread is matched with the external thread of the workpiece.
The utility model has the beneficial effects that:
the device is used for removing burrs at the cutting part of the external thread annular workpiece during cutting, and has the advantages of simple structure, low manufacturing cost, simple operation and high disassembly efficiency. Meanwhile, scratch on the workpiece caused by disassembling the workpiece is avoided, waste products are reduced, and the product quality is improved; clamping and disassembly are convenient, and processing efficiency is improved. The tool with different specifications can be manufactured according to the actual product size, and the tool has certain universality.
Drawings
Fig. 1 is a two-dimensional diagram of a special fixture capable of rapidly disassembling an external thread annular thin-wall workpiece, wherein 1 is a body, 2 is a left-handed positioning device, and 3 is a clamping thread sleeve.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings
As shown in fig. 1, the utility model relates to a special fixture capable of rapidly disassembling an external thread annular thin-wall workpiece, which comprises a body 1, a left-hand positioning device 2 and a clamping thread sleeve 3.
The left end of the body 1 is a light column and is used for clamping and clamping a chuck of a machine tool spindle, and the right end is externally threaded and is used for being connected with an internal thread of a clamping thread sleeve 3. The right end internal thread is connected with the left-handed positioning device 2 external thread.
The left-handed positioning device 2 is used for positioning and rapidly disassembling a workpiece, left-handed external threads at the left end are connected with left-handed internal threads at the right end of the body 1, and a hexagonal hole is formed in the center of the right end and used for moving the left-handed positioning device 2
The clamping thread sleeve 3 is connected with the body 1 by external threads and is used for clamping a workpiece. The left end internal thread is connected with the right end external thread of the body 1, and the right end internal thread is matched with the workpiece external thread to clamp the workpiece.
The principle of the utility model is as follows:
when the main shaft rotates forward, the left-handed positioning device 2 generates friction force in opposite directions to the screwing force of the workpiece, and is tightly attached; when the left-handed positioning device 2 is detached, the hexagonal wrench is used for loosening the left-handed positioning device 2, so that the workpiece is separated from the right end face of the left-handed positioning device 2, and the workpiece can be detached smoothly.
The working process of the utility model comprises the following steps:
the right end light pole of the body 1 is clamped by a clamping jaw of a numerical control device, the left-handed positioning device 2 is connected with the body 1 through left-handed threads, the clamping thread sleeve 3 is connected with the body 1 through right-handed threads, and the clamping thread sleeve is fixed through a fixing pin after the clamping thread sleeve is connected with the body 1.
The internal thread of the clamping thread sleeve 3 and the right end face of the left-handed positioning device 2 are provided with positioning faces. And the left-handed positioning device 2 is rotated to be attached to the positioning surface of the clamping thread sleeve 3, a workpiece is screwed into the internal thread of the clamping thread sleeve 3, the left end surface of the workpiece is attached to the right end surface of the left-handed positioning device 2, and the axial positioning of the workpiece is realized.
During processing, the main shaft rotates positively, the left-handed positioning device 2 moves outwards under the action of the screwing force due to the left-handed threads, the workpiece and the clamping thread sleeve 3 move inwards under the action of the screwing force due to the right-handed threads, and the clamping thread sleeve 3 is tightly attached to the workpiece under the action of the friction force, so that clamping is realized.
When dismantling, if directly dismantle the work piece, because frictional force influences, hardly dismantle, so left-hand positioning device 2 designs has the hexagonal spanner hole, utilizes hexagonal spanner rotation left-hand positioning device 2, makes left-hand positioning device 2 right-hand member face and work piece left end face break away from completely, has not screwed force, frictional force influence, very light just can lift off the work piece.
The clamping thread sleeve 3 is connected with the external thread of the workpiece, the external diameter, the end face and the internal thread of the clamping thread sleeve 3 are required to be assembled on the clamping fixture, and the clamping fixture is clamped on numerical control equipment and then processed; the coaxiality requirement of the internal thread of the threaded sleeve 3 and the main shaft is ensured and clamped, so that the coaxiality requirement of the workpiece and the main shaft is ensured. Thereby ensuring the consistency of chamfer angles at the cutting-off position of the workpiece after processing. When the clamping is carried out again, the outer diameter and the end face of the clamping thread sleeve 3 can be aligned by a striking gauge to ensure the requirements of the coaxiality and the perpendicularity of the right-handed threads of the clamping thread sleeve 3 and the end face and the rotation center of the machine tool, so that the dimensional accuracy and the form and position tolerance requirements of the product are ensured.
Claims (6)
1. The special fixture capable of rapidly disassembling the external thread annular thin-wall workpiece is characterized by comprising a body (1), a left-handed positioning device (2) and a clamping thread sleeve (3);
the left end of the body (1) is a light column, and the right end is externally threaded and is connected with the internal thread of the clamping thread sleeve (3); the right end internal thread is connected with the external thread of the left-handed positioning device (2);
the left-handed external thread at the left end of the left-handed positioning device (2) is connected with the left-handed internal thread at the right end of the body (1), and the center of the right end is a hexagonal hole;
the left end internal thread of the clamping thread sleeve (3) is connected with the right end external thread of the body (1), and the right end internal thread is matched with the external thread of the workpiece.
2. The special fixture for rapidly disassembling an externally threaded annular thin-wall workpiece according to claim 1, wherein the right end light column of the body (1) is clamped by a clamping jaw of numerical control equipment.
3. The special fixture for rapidly disassembling an externally threaded annular thin-walled workpiece according to claim 1, wherein the clamping screw sleeve is connected with the body through right-handed threads.
4. A special fixture for rapidly detaching an externally threaded annular thin-walled workpiece according to claim 3 wherein the attachment is followed by fixing by a fixing pin.
5. A special fixture for rapidly disassembling an external thread annular thin-wall workpiece according to claim 3, wherein the internal thread of the clamping thread sleeve (3) is matched with the right end surface of the left-hand positioning device (2) to form a positioning surface, and the left-hand positioning device (2) is matched with the positioning surface of the clamping thread sleeve (3).
6. A special fixture for rapidly disassembling an externally threaded annular thin-walled workpiece according to claim 3, wherein the left end face of the workpiece is attached to the right end face of the left-handed positioning device (2) when the workpiece is screwed into the internal thread of the clamping screw sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223268969.6U CN219901270U (en) | 2022-12-07 | 2022-12-07 | Special fixture capable of rapidly disassembling external thread annular thin-wall workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223268969.6U CN219901270U (en) | 2022-12-07 | 2022-12-07 | Special fixture capable of rapidly disassembling external thread annular thin-wall workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219901270U true CN219901270U (en) | 2023-10-27 |
Family
ID=88421952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223268969.6U Active CN219901270U (en) | 2022-12-07 | 2022-12-07 | Special fixture capable of rapidly disassembling external thread annular thin-wall workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219901270U (en) |
-
2022
- 2022-12-07 CN CN202223268969.6U patent/CN219901270U/en active Active
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