CN214923615U - Rotary fixture of flat key main shaft - Google Patents
Rotary fixture of flat key main shaft Download PDFInfo
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- CN214923615U CN214923615U CN202022983071.1U CN202022983071U CN214923615U CN 214923615 U CN214923615 U CN 214923615U CN 202022983071 U CN202022983071 U CN 202022983071U CN 214923615 U CN214923615 U CN 214923615U
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- flat key
- main shaft
- bottom plate
- sleeve
- key main
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Abstract
The utility model discloses a rotary fixture of parallel key main shaft, characteristics are: including apron and hollow sleeve, the apron comprises bottom plate and the spliced pole of setting in the top of bottom plate, the bottom plate lid establish in telescopic top and with sleeve fixed connection, square through hole has been seted up along the axial in the spliced pole, along radially having seted up circular through-hole, telescopic one side has the opening, just adjacent opening part is provided with the flat key piece of evagination on the telescopic inside wall, leave the assembly interval between the top surface of flat key piece and the bottom surface of bottom plate, go into the tip card of flat key main shaft in the assembly interval, make flat key piece block in the keyway of flat key main shaft, the advantage is: through the keyway cooperation of flat key piece and flat key main shaft, provide a rotary fixture under the prerequisite of guaranteeing that the flat key main shaft is not impaired, can connect outside application of force mechanism and make the steady rotation of flat key main shaft.
Description
Technical Field
The utility model relates to an anchor clamps field especially relates to a rotary fixture of parallel key main shaft.
Background
The flat key main shaft is an important transmission component, and the installed flat key main shaft is generally required to be rotationally positioned in the processing and using process of the flat key main shaft. At present, a rotary flat key spindle does not have a certain clamp, and the spindle is usually rotated by knocking through a pipe wrench or a screwdriver so as to judge whether the axial clearance of a product meets the requirement. The operation can only depend on manual judgment, the assembly precision is influenced, and the quality of the processed product is hidden. Nor has it been specifically applied to a rotary jig for a flat key spindle for a while.
Disclosure of Invention
In order to solve the deficiencies existing in the prior art, the utility model discloses provide a rotary fixture of flat key main shaft under the prerequisite of guaranteeing that the flat key main shaft is not impaired, can connect outside application of force mechanism and make the flat key main shaft steadily rotatory.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a rotary fixture of flat key main shaft, includes apron and hollow sleeve, the apron be in by bottom plate and setting the spliced pole of the top of bottom plate constitute, the bottom plate lid establish telescopic top and with sleeve fixed connection, the spliced pole in seted up square through-hole along the axial, radially seted up circular through-hole, telescopic one side have an opening, telescopic inside wall on and adjacent the opening part be provided with the flat key piece of evagination, the top surface of flat key piece with the bottom surface of bottom plate between leave the assembly interval, will the tip card of flat key main shaft go into the assembly interval in, make the flat key piece block the keyway of flat key main shaft in.
In some embodiments, the fitting interval is 0.1 to 1mm greater than a distance between a key groove top end of the flat key spindle and an end face of the flat key spindle. The small assembly interval is inconvenient to assemble on the flat key main shaft, and the large assembly interval is not favorable for clamping, rotating and loosening easily, so that the arrangement has a better effect, and the flat key main shaft is convenient to assemble from the side surface.
In some embodiments, the width of the flat key block is less than the width of the key groove of the flat key main shaft by 0.2 +/-0.05 mm. Thereby facilitating the matching of the flat key block and the flat key spindle.
In some embodiments, the protrusion height of the flat key block is 0.5 ± 0.1mm greater than the depth of the key groove of the flat key main shaft. Thereby facilitating the matching of the flat key block and the flat key spindle.
In some embodiments, the cross section of the flat key block is arranged in a parallelogram structure, the side wall of the flat key block is arranged into an inclined surface, the inclined surface is inclined outwards and inwards from the inner wall of the sleeve, the inclination is 18 degrees +/-2 degrees, and the edge of the flat key block is provided with a chamfer. Thereby facilitating assembly of the flat key spindle by being put in from the side.
In some embodiments, the edge of the bottom plate is uniformly provided with mounting through holes, the end face of the corresponding sleeve is provided with threaded holes, and the mounting through holes are internally penetrated with connecting screws matched with the threaded holes. Thereby enabling a secure connection of the cover plate and the sleeve.
In some embodiments, the arc angle of the sleeve is arranged at 190-. The structure is convenient to assemble with the flat key main shaft on the basis of having certain stress strength, and the weight of the rotary tool can be reduced as much as possible.
Compared with the prior art, the utility model has the advantages of: (1) the flat key block in the sleeve is matched with the key groove of the flat key main shaft, so that the rotary fixture is assembled on the flat key main shaft, the flat key main shaft can be driven to rotate qualitatively by connecting the arranged through holes with a common handle, and the flat key main shaft can be driven to rotate quantitatively by connecting the arranged square holes with a torque wrench; (2) the flat key block is set to be in a specific structure and size, so that the assembly of the flat key main shaft is further facilitated, the flat key main shaft can be conveniently and quickly mounted on the main shaft, and the stress is fully exerted; (3) compare the mode that uses breakout tongs or screwdriver fragile main shaft structure among the prior art, the utility model discloses convenient operation, labour saving and time saving, the quality is reliable, and can guarantee rotation and assembly precision.
Drawings
Fig. 1 is a perspective structural view of an embodiment of the present invention;
fig. 2 is a front cross-sectional view of a sleeve according to an embodiment of the present invention;
fig. 3 is a top view of a sleeve according to an embodiment of the present invention;
fig. 4 is a front sectional view of a cover plate according to an embodiment of the present invention;
fig. 5 is a top view of a cover plate according to an embodiment of the present invention;
fig. 6 is a schematic view of the rotary fixture of the flat key spindle and the flat key spindle of the present invention.
The connecting structure comprises a cover plate 1, a bottom plate 11, a connecting column 12, a square through hole 13, a circular through hole 14, an installation through hole 15, a sleeve 2, an opening 21, a flat key block 22, an assembly interval 23, an inclined plane 24, a chamfer 25, a threaded hole 26, a flat key spindle 3, a key groove 31 and a connecting screw 4.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples, but the present invention is not limited thereto.
Example one
As shown in the figure, the rotary fixture for the flat key spindle comprises a cover plate 1 and a hollow sleeve 2, wherein the cover plate 1 is composed of a bottom plate 11 and a connecting column 12 arranged above the bottom plate 11, the bottom plate 11 is covered above the sleeve 2 and fixedly connected with the sleeve 2, a square through hole 13 is formed in the connecting column 12 in the axial direction, and a circular through hole 14 is formed in the radial direction. The square through holes can be connected with a torque wrench to drive the flat key main shaft to rotate quantitatively.
One side of the sleeve 2 is provided with an opening 21, a convex flat key block 22 is arranged on the inner side wall of the sleeve 2 and adjacent to the opening, an assembly interval 23 is reserved between the top surface of the flat key block 22 and the bottom surface of the bottom plate 11, and the end part of the flat key spindle 3 is clamped in the assembly interval 23, so that the flat key block 22 is clamped in the key groove 31 of the flat key spindle.
Example two
The present embodiment provides a rotary fixture for a flat key spindle, which further supplements the specific structure of the sleeve on the basis of the first embodiment. In this embodiment, the fitting interval 23 is 0.1 to 1mm larger than the distance between the top end of the key groove 31 of the flat key spindle and the end face of the flat key spindle 3.
In this embodiment, the width of the flat key block 22 is smaller than the width of the key groove 31 of the flat key spindle by 0.2 ± 0.05 mm.
In this embodiment, the protruding height of the flat key block 22 is 0.5 ± 0.1mm greater than the depth of the key groove 31 of the flat key spindle.
In this embodiment, the cross section of the flat key block 22 is set to be a parallelogram structure, the side wall of the flat key block 22 is set to be an inclined surface 24, the inclined surface 24 is inclined outwards and inwards from the inner wall of the sleeve 2, the inclination is 18 ° ± 2 °, and the edge of the flat key block 22 is provided with a chamfer 25.
EXAMPLE III
The rotary fixture for the flat key spindle is further supplemented with the rest of specific structures of the rotary fixture on the basis of the first embodiment or the second embodiment. In this embodiment, the edge of the bottom plate 11 is uniformly provided with the mounting through holes 15, the end face of the corresponding sleeve 2 is provided with the threaded holes 26, and the mounting through holes 15 are internally penetrated with the connecting screws 4 matched with the threaded holes 26.
In the present embodiment, the arc angle of the sleeve 2 is arranged at 190-.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and the present invention can also be modified in materials and structures, or replaced by technical equivalents. Therefore, all structural equivalents which may be made by applying the present invention to the specification and drawings, or by applying them directly or indirectly to other related technical fields, are intended to be encompassed by the present invention.
Claims (7)
1. The utility model provides a rotary fixture of flat key main shaft, its characterized in that, includes apron and hollow sleeve, the apron be in by bottom plate and setting the spliced pole of the top of bottom plate constitute, the bottom plate lid establish telescopic top and with sleeve fixed connection, the spliced pole in seted up square through hole along the axial, radially seted up circular through hole, telescopic one side have an opening, telescopic inside wall on and adjacent the opening part be provided with the flat key piece of evagination, the top surface of flat key piece with the bottom surface of bottom plate between leave the assembly interval, will the tip card of flat key main shaft go into the assembly interval in, make the flat key piece block be in the keyway of flat key main shaft in.
2. The rotary jig for a flat key spindle according to claim 1, wherein the fitting interval is larger than a distance between a key groove top end of the flat key spindle and an end face of the flat key spindle by 0.1 to 1 mm.
3. The rotary jig for a flat key spindle according to claim 1, wherein the width of the flat key block is less than the width of the key groove of the flat key spindle by 0.2 ± 0.05 mm.
4. The rotary jig for a flat key spindle according to claim 1, wherein the protrusion height of the flat key block is greater than the depth of the key groove of the flat key spindle by 0.5 ± 0.1 mm.
5. The rotary jig for a flat key spindle according to claim 1, wherein the cross section of the flat key block is provided in a parallelogram structure, the side wall of the flat key block is provided with an inclined surface, the inclined surface is inclined outward and inward from the inner wall of the sleeve at an inclination of 18 ° ± 2 °, and the edge of the flat key block is provided with a chamfer.
6. The rotary clamp for the flat key spindle according to claim 1, wherein mounting through holes are uniformly formed in the edge of the bottom plate, threaded holes are formed in the end face of the corresponding sleeve, and connecting screws matched with the threaded holes penetrate through the mounting through holes.
7. The rotary jig for a flat key spindle according to claim 1, wherein the arc angle of the sleeve is arranged to be 190 ° and 195 °, and the corresponding arc angle of the outer peripheral portion of the base plate is coincident with the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022983071.1U CN214923615U (en) | 2020-12-11 | 2020-12-11 | Rotary fixture of flat key main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022983071.1U CN214923615U (en) | 2020-12-11 | 2020-12-11 | Rotary fixture of flat key main shaft |
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| Publication Number | Publication Date |
|---|---|
| CN214923615U true CN214923615U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022983071.1U Active CN214923615U (en) | 2020-12-11 | 2020-12-11 | Rotary fixture of flat key main shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091333A (en) * | 2022-07-01 | 2022-09-23 | 深圳市易天自动化设备股份有限公司 | Grinding and cleaning assembly, control method thereof and grinding and cleaning device |
-
2020
- 2020-12-11 CN CN202022983071.1U patent/CN214923615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091333A (en) * | 2022-07-01 | 2022-09-23 | 深圳市易天自动化设备股份有限公司 | Grinding and cleaning assembly, control method thereof and grinding and cleaning device |
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