CN211248389U - Special powder metallurgy gear hub turning mold - Google Patents
Special powder metallurgy gear hub turning mold Download PDFInfo
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- CN211248389U CN211248389U CN201922317438.3U CN201922317438U CN211248389U CN 211248389 U CN211248389 U CN 211248389U CN 201922317438 U CN201922317438 U CN 201922317438U CN 211248389 U CN211248389 U CN 211248389U
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Abstract
The utility model relates to a mould specifically is a special powder metallurgy tooth hub car processing mould. The lathe spindle is internally provided with a hydraulic pull rod, the outer end of the hydraulic pull rod is provided with a connecting disc, the outer side surface of the lathe spindle connecting disc is provided with an air tightness body, the air tightness body is of a transverse T-shaped structure, and the outer end of the shaft part of the air tightness body is provided with a taper; the I-shaped expansion sleeve is sleeved on the shaft part of the air-tightness body, the inner ring part of the expansion sleeve is fixedly connected with the connecting disc through a connecting bolt, the connecting bolt penetrates through the air-tightness body, a guide sleeve is arranged between the connecting bolt and the connecting hole of the air-tightness body, the outer ring part of the expansion sleeve is provided with an inner taper hole, and the inner taper hole is matched with the conical surface of the shaft part of the air-tightness body; the positioning disc of the sleeve structure is sleeved on the outer side of the expansion sleeve, the inner end of the positioning disc is fixedly connected with the air tightness body, and the outer end face of the positioning disc is attached to the end face of the gear hub to be processed. The utility model discloses can with the manipulator cooperation, improve the automation, improve machining efficiency, reduce the processing cost.
Description
Technical Field
The utility model relates to a mould specifically is a special powder metallurgy tooth hub car processing mould.
Background
The common method for processing the gear hub comprises the steps of clamping an external gear circle, positioning the external gear circle by using the end face of a core part, and processing the other end face. The other method is to expand the inner hole, position the inner hole by the end surface of the core part and process the other end surface, and the method has the advantages of unified processing reference and detection reference, good precision, manual feeding and blanking and low manual operation processing efficiency.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a special powder metallurgy tooth hub car processing mould to improve powder metallurgy tooth hub machining precision, improve machining efficiency.
The utility model provides a technical scheme that its technical problem adopted is:
a special powder metallurgy gear hub turning mold comprises a lathe spindle flange, wherein a hydraulic pull rod is arranged in a lathe spindle, a connecting disc is arranged at the outer end of the hydraulic pull rod, an air tightness body is arranged on the outer side surface of the lathe spindle flange, the air tightness body is of a transverse T-shaped structure, and the outer end of a shaft part of the air tightness body is provided with a taper; the I-shaped expansion sleeve is sleeved on the shaft part of the air-tightness body, the inner ring part of the expansion sleeve is fixedly connected with the connecting disc through a connecting bolt, the connecting bolt penetrates through the air-tightness body, a guide sleeve is arranged between the connecting bolt and the connecting hole of the air-tightness body, the outer ring part of the expansion sleeve is provided with an inner taper hole, and the inner taper hole is matched with the conical surface of the shaft part of the air-tightness body; the positioning disc of the sleeve structure is sleeved on the outer side of the expansion sleeve, the inner end of the positioning disc is fixedly connected with the air tightness body, and the outer end face of the positioning disc is attached to the end face of the gear hub to be processed.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, beneficial effect is:
the machining precision can be improved, the machining device can be matched with a mechanical arm, the machining automation level is improved, the machining efficiency is improved, and the machining cost is reduced.
Further, the utility model discloses an optimization scheme is:
the lathe spindle flange is provided with the air pipe joint, the air pipe joint is communicated with the first radial air hole of the lathe spindle flange, the first radial air hole is communicated with the first axial air hole of the lathe spindle flange, the first axial air hole is communicated with the second axial air hole of the air tightness body, the second axial air hole is communicated with the second radial air hole of the air tightness body, the second radial air hole is communicated with the third axial air hole of the air tightness body, the third axial air hole is communicated with the fourth radial air hole of the positioning disc, the fourth radial air hole is communicated with the fourth axial air hole of the positioning disc, and the fourth axial air hole penetrates through the outer end face of the positioning disc.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a standard construction;
in the figure, a connecting disc 1; a fastening screw 2; a guide sleeve 3; a connecting bolt 4; an expansion sleeve 5; an inner ring part 5-1; an outer ring portion 5-2; a shaft sleeve part 5-3; an airtight body 6; disk portion 6-1; a shaft portion 6-2; a second axial air hole 6-3; a second radial air hole 6-4; a third axial air hole 6-5; a positioning plate 7; a third radial air hole 7-1; a fourth axial air hole 7-2; a connecting screw 8; a standard 9; a nut 10; a lathe spindle flange 11; a first radial air hole 11-1; a first axial air hole 11-2; a hydraulic pull rod 12; a gas pipe joint 13; a toothed hub 14.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the special powder metallurgy gear hub turning mold comprises a connecting disc 1, a connecting screw 2, a guide sleeve 3, a connecting bolt 4, an expansion sleeve 5, an airtight body 6, a positioning disc 7, a connecting bolt 8, a nut 10, a lathe spindle connecting disc 11, a hydraulic pull rod 12 and a gas pipe joint 13. The lathe spindle is of a hollow spindle structure, a lathe spindle flange 11 is mounted at the end of the lathe spindle, a hydraulic pull rod 13 is mounted in the lathe spindle, and a threaded hole is machined in the outer end of the hydraulic pull rod 13.
The outer end of the hydraulic pull rod 13 is provided with a connecting disc 1, the outer circumferential surface of the connecting disc 1 is of a stepped shaft structure, a central hole is processed in the connecting disc 1, a fastening screw 2 penetrates through the central hole of the connecting disc 1, the fastening screw 2 on the inner side of the connecting disc 1 is screwed with a nut 10, and the inner end of the fastening screw 2 is arranged in a threaded hole of the hydraulic pull rod 13.
The outer side surface of the lathe spindle flange 11 is provided with an air tightness body 6, the air tightness body 6 is of a transverse T-shaped structure, the air tightness body 6 is composed of a disk part 6-1 and a shaft part 6-2, the disk part 6-1 of the air tightness body 6 is connected with the lathe spindle flange 11 through a bolt, and the air tightness body 6 is connected with the lathe spindle flange 11 in a sealing mode. The outer end of the shaft portion 6-2 of the gastight body 6 is tapered.
The expansion sleeve 5 is sleeved on the shaft part 6-2 of the air tightness body 6, the expansion sleeve 5 is of a transverse I-shaped structure, and the expansion sleeve 5 is composed of an inner ring part 5-1, an outer ring part 5-2 and a shaft sleeve part 5-3. The expansion sleeve 5 is provided with a shaft hole which transversely penetrates through the expansion sleeve body, an inner ring part 5-1 of the expansion sleeve 5 is connected with a connecting disc 1 on the inner side of the air tightness body 6 through a connecting bolt 4, three connecting holes are formed in a disc part 6-1 of the air tightness body 6, the connecting bolt 4 penetrates through the connecting holes of the air tightness body 6, a guide sleeve 3 is arranged between the connecting bolt 4 and the connecting holes of the air tightness body 6, and the guide sleeve 3 is in sliding connection with the connecting holes of the air tightness body 6. The outer ring part 5-2 of the expansion sleeve 5 is processed with an inner taper hole structure which is matched with the taper surface at the outer end of the shaft part 6-2 of the air-tight body 6. The positioning disc 7 is sleeved on the outer side of the expansion sleeve 5, the positioning disc 7 is of a sleeve structure, the inner end of the positioning disc 7 is connected with the air tightness body 6 through a connecting screw 8, the positioning disc 7 is in sealing connection with the air tightness body 6, and the outer end face of the positioning disc 7 is attached to the end face of the gear hub to be processed.
The embodiment is also provided with a gear hub assembly detection structure, the gear hub assembly detection structure comprises an air pipe joint 13, a first radial air hole 11-1, a first axial air hole 11-2, a second axial air hole 6-3, a second radial air hole 6-4, a third axial air hole 6-5, a third radial air hole 7-1 and a fourth axial air hole 7-2, the air pipe joint 13 is arranged on the inner side surface of the lathe spindle flange 11, the air pipe joint 13 is connected with an air source through a pipeline, the air pipe joint 13 is communicated with the first radial air hole 11-1 of the lathe spindle flange 11, the first radial air hole 11-1 of the lathe spindle flange 11 is communicated with the first axial air hole 11-2 of the lathe spindle flange 11, the first axial air hole 11-2 is communicated with the second axial air hole 6-3 of the air tightness body 6, the second axial air hole 6-3 is communicated with the second radial air hole 6-4 of the air tightness body 6, the second radial air hole 6-4 is communicated with a third axial air hole 6-5 of the air tightness body 6, the third axial air hole 6-5 is communicated with a third radial air hole 7-1 of the positioning disc 7, the third radial air hole 7-1 is communicated with a fourth axial air hole 7-2 of the positioning disc 7, and the fourth axial air hole 7-2 penetrates through the outer end face of the positioning disc 7.
The working process of the embodiment is that the embodiment is installed on a numerical control machine tool, and the circular standard component 9 is used for correcting the form and position accuracy of the clamping fixture. Starting the numerically controlled lathe, pushing the expansion sleeve 5 to move forwards by a lathe hydraulic pull rod 12 through the connecting disc 1 and the guide sleeve 3, separating an inner taper hole of the expansion sleeve 5 from a conical surface at the outer end of the shaft part 6-2 of the airtight body 6, and reducing the outer diameter of an outer ring part 5-2 of the expansion sleeve 5; the mechanical hand sends the inner hole of the gear hub 14 to the outer diameter of the outer ring part 5-2 of the expansion sleeve 5 until the outer tooth end face of the gear hub is attached to the outer end face of the positioning disc 7. Compressed air sequentially enters the lathe spindle flange 11, the air tightness body 6 and the positioning disc 7 through an air pipe and reaches the outer tooth end face of the gear hub 14, at the moment, the system detects through air pressure, the pressure range of the air pressure detection is 0.1-0.2Mpa, whether air leakage exists between the outer tooth end face of the gear hub 14 and the end face of the positioning disc 7 or not is judged, and whether the mechanical arm is assembled in place or not is judged; after the gear hub 14 is assembled, the lathe hydraulic pull rod 12 pulls the expansion sleeve 5 to move backwards through the connecting disc 1 and the guide sleeve 3, an inner taper hole of the expansion sleeve 5 is attached to the conical surface of the outer end of the shaft part 6-2 of the airtight body 6, the outer diameter of an outer ring part 5-2 of the expansion sleeve 5 expands, and the gear hub 14 is fixed on a mould; and starting the numerically controlled lathe to machine the gear hub 14. After the turning is finished, the numerically controlled lathe stops, the lathe hydraulic pull rod 12 pushes the expansion sleeve 5 to move forwards through the connecting disc 1 and the guide sleeve 3, an inner taper hole of the expansion sleeve 5 is separated from a conical surface of the outer end of the shaft part 6-2 of the air-tightness body 6, and the outer diameter of an outer ring part 5-2 of the expansion sleeve 5 is reduced; the robot arm takes out the hub 14, completing one cycle. Every two numerically controlled lathes are provided with a mechanical hand which is matched with a special powder metallurgy gear hub lathing clamping fixture to quickly and effectively finish lathing the gear hub.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (2)
1. A special powder metallurgy gear hub turning mold comprises a lathe spindle flange, wherein a hydraulic pull rod is arranged in a lathe spindle, and is characterized in that a connecting disc is arranged at the outer end of the hydraulic pull rod, an air tightness body is arranged on the outer side surface of the lathe spindle flange, the air tightness body is of a transverse T-shaped structure, and the outer end of the shaft part of the air tightness body is provided with a taper; the I-shaped expansion sleeve is sleeved on the shaft part of the air-tightness body, the inner ring part of the expansion sleeve is fixedly connected with the connecting disc through a connecting bolt, the connecting bolt penetrates through the air-tightness body, a guide sleeve is arranged between the connecting bolt and the connecting hole of the air-tightness body, the outer ring part of the expansion sleeve is provided with an inner taper hole, and the inner taper hole is matched with the conical surface of the shaft part of the air-tightness body; the positioning disc of the sleeve structure is sleeved on the outer side of the expansion sleeve, the inner end of the positioning disc is fixedly connected with the air tightness body, and the outer end face of the positioning disc is attached to the end face of the gear hub to be processed.
2. The special powder metallurgy gear hub turning mold according to claim 1, further comprising a gear hub assembly detection structure, wherein the gear hub assembly detection structure comprises a gas pipe joint, a first radial gas hole, a first axial gas hole, a second radial gas hole, a third axial gas hole, a third radial gas hole and a fourth axial gas hole, the gas pipe joint is mounted on the lathe spindle flange and is communicated with the first radial gas hole of the lathe spindle flange, the first radial gas hole is communicated with the first axial gas hole of the lathe spindle flange, the first axial gas hole is communicated with the second axial gas hole of the gas-tight body, the second axial gas hole is communicated with the second radial gas hole of the gas-tight body, the second radial gas hole is communicated with the third axial gas hole of the gas-tight body, the third axial gas hole is communicated with the fourth radial gas hole of the positioning disk, and the fourth radial gas hole is communicated with the fourth axial gas hole of the positioning disk, the fourth axial air hole penetrates through the outer end face of the positioning disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922317438.3U CN211248389U (en) | 2019-12-22 | 2019-12-22 | Special powder metallurgy gear hub turning mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922317438.3U CN211248389U (en) | 2019-12-22 | 2019-12-22 | Special powder metallurgy gear hub turning mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211248389U true CN211248389U (en) | 2020-08-14 |
Family
ID=71985215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922317438.3U Active CN211248389U (en) | 2019-12-22 | 2019-12-22 | Special powder metallurgy gear hub turning mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211248389U (en) |
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2019
- 2019-12-22 CN CN201922317438.3U patent/CN211248389U/en active Active
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