CN220515433U - From top axle of taking machinery band-type brake - Google Patents
From top axle of taking machinery band-type brake Download PDFInfo
- Publication number
- CN220515433U CN220515433U CN202321538580.0U CN202321538580U CN220515433U CN 220515433 U CN220515433 U CN 220515433U CN 202321538580 U CN202321538580 U CN 202321538580U CN 220515433 U CN220515433 U CN 220515433U
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- Prior art keywords
- band
- type brake
- sleeve
- bearing
- inner sleeve
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- 238000007789 sealing Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 abstract description 14
- 238000009776 industrial production Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of machinery, in particular to a tip shaft with a mechanical band-type brake, which comprises a main shaft, an outer sleeve, a bearing assembly, a positioning pin, an inner sleeve, a clamping spring, a lock nut, a band-type brake assembly and a tailstock, wherein the outer sleeve is sleeved outside the inner sleeve; the clamping force is adjustable, so that deformation in the rack machining process is avoided, and the rack machining quality is ensured; and rotating any angle according to the processing requirement of the racks so as to be compatible with racks of different models.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to a tip shaft with a mechanical band-type brake.
Background
In the field of industrial production, there is a need to machine shaft-like parts, and during the machining process, the workpiece is clamped by using a clamping tip shaft to facilitate machining. The use of the clamping tip shaft directly affects the production efficiency and the processing quality of the product.
In the processing of racks of automobile part steering machines, the processing angles of tooth surfaces are larger because of different types and sizes of racks of different automobile brands, and the processing precision requirement is higher. In order to ensure the machining accuracy, it is necessary to prevent the rotation of the rack by using a clamp-on-tip shaft in the machining of the rack. However, the clamping force provided by the clamping tip shaft is not proper, so that the rack is deformed, and the workpiece is required to be processed by switching different stations due to the large number of types of processed racks.
Therefore, a tip shaft with a mechanical band-type brake is required to be designed, reliable shaft locking is achieved, positioning, clamping and angle adjustment requirements of racks of different types are met, and therefore the quality and efficiency of rack machining are guaranteed.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, provides a self-carrying mechanical band-type brake tip shaft, realizes reliable shaft locking, and meets the requirements of positioning, clamping and angle adjustment of racks of different types, thereby ensuring the quality and efficiency of rack machining.
In order to achieve the above purpose, the utility model provides a tip shaft with a mechanical band-type brake, which comprises a main shaft, an outer sleeve, a bearing assembly, a positioning pin, an inner sleeve, a clamping spring, a locking nut, a band-type brake assembly and a tail seat, wherein the outer sleeve is sleeved outside the inner sleeve, the clamping spring is arranged between the outer sleeve and the inner sleeve, one end of the clamping spring is propped against a boss on the outer surface of the inner sleeve, the other end of the clamping spring is propped against the inner surface of the outer sleeve, the inner sleeve is sleeved outside the main shaft, the end part of the main shaft is exposed out of the end surface of the inner sleeve, the bearing assembly is arranged between the outer side of the middle part of the main shaft and the inner wall of the inner sleeve, the locking nut and the band-type brake assembly are arranged on the outer side of the other end part of the main shaft, the locking nut and the band-type brake assembly are sleeved outside the tail seat, the end surface of the locking nut is propped against the bearing assembly, the band-type brake assembly comprises a band-type brake spring base, a band-type brake spring, a band-type brake key bar and a band-type brake body are sleeved outside the main shaft, a variable diameter part inside the band-type brake body is propped against the outer surface of the band-type brake body, one end of the band-type brake is screwed into the inner sleeve, the tail seat is connected by adopting threads, the outer surface of the positioning pin, and the positioning pin is arranged on the outer surface of the inner sleeve.
The bearing assembly comprises two angular contact bearings and bearing sleeves, wherein two ends of each bearing sleeve are respectively provided with one angular contact bearing, the inner ring of each angular contact bearing is contacted with the main shaft, and the outer ring of each angular contact bearing is contacted with the inner sleeve.
The bearing sleeve comprises a bearing outer sleeve and a bearing inner sleeve, the bearing outer sleeve is sleeved outside the bearing inner sleeve, the bearing inner sleeve is contacted with the main shaft, and the bearing outer sleeve is contacted with the inner sleeve.
A spring backing ring is arranged between the clamping spring and the outer sleeve.
A main shaft sealing end cover is arranged at a gap between the end part of the inner sleeve and the main shaft.
An outer sleeve sealing end cover is arranged at a gap between the end part of the outer sleeve and the inner sleeve.
The tailstock is matched with a piston of the first cylinder.
The tail seat is connected with the piston of the second cylinder through a U-shaped shifting fork, the U-shaped shifting fork is arranged at the end part of the second piston of the cylinder, the end part of the U-shaped shifting fork is inserted into the through hole of the tail seat and props against the band-type brake body, and the shaft of the servo motor is connected with the second cylinder.
Compared with the prior art, the utility model designs the tip shaft with the mechanical band-type brake, solves the problems of multi-station switching and rack positioning angle rotation, ensures the continuity of multi-station processing and ensures the efficiency of rack processing; the clamping force is adjustable, so that deformation in the rack machining process is avoided, and the rack machining quality is ensured; rotating at any angle according to the processing requirement of the racks so as to be compatible with racks of different types; the utility model has the advantages of high reliability, good stability and good self-locking performance.
Drawings
Fig. 1 is a perspective view of the present utility model.
FIG. 2 is a cross-sectional view of the present utility model in connection with a U-shaped shift fork.
Fig. 3 is an exploded view of the present utility model.
Description of the embodiments
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, the utility model provides a tip shaft with a mechanical band-type brake, which comprises a main shaft 3, an outer sleeve 4, a bearing assembly, a locating pin 8, an inner sleeve 9, a clamping spring 10, a locking nut 12, a band-type brake assembly and a tailstock 17, wherein the outer sleeve 4 is sleeved outside the inner sleeve 9, a clamping spring 10 is arranged between the outer sleeve 4 and the inner sleeve 9, one end of the clamping spring 10 abuts against a boss on the outer surface of the inner sleeve 9, the other end of the clamping spring 10 abuts against the inner surface of the outer sleeve 4, the inner sleeve 9 is sleeved outside the main shaft 3, the end of the main shaft 3 is exposed from the end surface of the inner sleeve 9, a bearing assembly is arranged between the outer side of the middle part of the main shaft 3 and the inner wall of the inner sleeve 9, the other end of the main shaft 3 is provided with the locking nut 12 and the brake assembly, a tailstock 17 is sleeved outside the locking nut 12 and the brake assembly, the end surface of the locking nut 12 is provided with a tailstock 17, the end surface of the locking nut 12 comprises a band-type brake spring base 13, a band-type brake spring 14, a brake bar 15 and a brake body 16 are arranged between the outer sleeve 15, one end of the band-type brake bar 15 is arranged outside the main shaft 3, the band-type brake bar 15 is sleeved outside the inner sleeve 9, the other end is sleeved outside the main shaft 3, the other end is sleeved with the other end of the band-type brake is provided with a spring base 13, the body 14, the band-type brake body 16 is provided with a tail stock 16, and the inner sleeve 17 is screwed into the inner sleeve 9, and the other end is prevented from rotating, and the other end is provided with a positioning shaft 9, and is provided with a tail pin, and is positioned between the tail stock 9, and 8, and has.
The bearing assembly comprises two angular contact bearings 5 and a bearing sleeve, wherein two ends of the bearing sleeve are respectively provided with one angular contact bearing 5, the inner ring of the angular contact bearing 5 is contacted with the main shaft 3, and the outer ring of the angular contact bearing 5 is contacted with the inner sleeve 9.
The bearing sleeve comprises a bearing outer sleeve 6 and a bearing inner sleeve 7, the bearing outer sleeve 6 is sleeved outside the bearing inner sleeve 7, the bearing inner sleeve 7 is contacted with the main shaft 3, and the bearing outer sleeve 6 is contacted with the inner sleeve 9.
A spring washer 11 is arranged between the clamping spring 10 and the outer sleeve 4 to play a role in preventing looseness.
A main shaft sealing end cover 1 is arranged at a gap between the end part of the inner sleeve 9 and the main shaft 3. An outer sleeve sealing end cover 2 is arranged at the gap between the end part of the outer sleeve 4 and the inner sleeve 9 to play a role of sealing.
When the rack is placed, the tailstock 17 is engaged with the piston of the first cylinder. When the angle of the rack is adjusted, the tail seat 17 is connected with the piston of the second cylinder through a U-shaped shifting fork 18, the U-shaped shifting fork 18 is arranged at the end part of the second cylinder piston, the end part of the U-shaped shifting fork 18 is inserted into a through hole of the tail seat 17 and props against the band-type brake body 16, and the shaft of the servo motor is connected with the second cylinder.
When the utility model works, the driving tip shaft is fixed on the rotary turntable, before a rack is placed, the piston of the first cylinder pulls the tailstock 17 to drive the inner sleeve 9 and the main shaft 3 to move towards the first cylinder, the boss of the inner sleeve 9 and the inner surface of the outer sleeve 4 compress the clamping spring 10, the rack is placed in the middle of the tip shaft, the piston of the first cylinder resets, the force applied on the tailstock 17 disappears, and the spring force of the clamping spring 10 pushes the inner sleeve 9 and the main shaft 3 to reset towards the rack, so that the rack is clamped.
The equipment turntable rotates to a processing station, a piston of the cylinder II drives a U-shaped shifting fork 18 to be inserted into a tailstock 17, the band-type brake body 16 is pushed to compress a band-type brake spring 14 to open the band-type brake, a servo motor rotates to drive the U-shaped shifting fork 18 to rotate, and the main shaft 3 is driven to rotate so as to adjust a rack to an angle to be processed.
After the current machining process is finished, the next working procedure is required to be performed, the piston of the second cylinder drives the U-shaped shifting fork 18 to push out of the tailstock 17, the spring force of the band-type brake spring 14 resets the band-type brake body 16, so that the band-type brake assembly locks the main shaft 3, the rack is prevented from rotating, the rack is ensured to rapidly move to the next station, and unstable machining caused by rotation of parts due to switching of the stations is avoided.
The utility model designs the tip shaft with the mechanical band-type brake, solves the problems of multi-station switching and rack positioning angle rotation, ensures the continuity of multi-station processing and ensures the processing efficiency of racks; the clamping force is adjustable, so that deformation in the rack machining process is avoided, and the rack machining quality is ensured; rotating at any angle according to the processing requirement of the racks so as to be compatible with racks of different types; the utility model has the advantages of high reliability, good stability and good self-locking performance. The utility model can meet the positioning, clamping and angle switching of racks of different types or slender shafts, meet the requirement of industrial production, and can meet the productivity requirement of racks with daily yield not lower than 4500.
Claims (8)
1. The utility model provides a from top axle of taking machinery band-type brake, includes main shaft (3), outer sleeve (4), bearing assembly, locating pin (8), inner skleeve (9), clamping spring (10), lock nut (12), band-type brake subassembly, tailstock (17), its characterized in that: the outer sleeve (4) is sleeved outside the inner sleeve (9), a clamping spring (10) is arranged between the outer sleeve (4) and the inner sleeve (9), one end of the clamping spring (10) is propped against a boss on the outer surface of the inner sleeve (9), the other end of the clamping spring (10) is propped against the inner surface of the outer sleeve (4), the inner sleeve (9) is sleeved outside the main shaft (3), the end part of the main shaft (3) is exposed out of the end surface of the inner sleeve (9), a bearing component is arranged between the outer side of the middle part of the main shaft (3) and the inner wall of the inner sleeve (9), a locking nut (12) and a band-type brake component are arranged on the outer side of the other end part of the main shaft (3), a tailstock (17) is sleeved outside the locking nut (12) and the band-type brake component, the end surface of the locking nut (12) is propped against the bearing component, the band-type brake component comprises a band-type spring base (13), a band-type brake spring (14) and a band-type brake body (16), the band-type brake bar (15) is arranged outside the main shaft (3), the band-type brake spring (15) is sequentially sleeved outside the band-type band-brake spring (14) and the inner sleeve (15), the inner part (16) is arranged outside the main shaft (3), the band-type band-brake body (3), the inner part (17) is screwed into the inner sleeve (9), and the outer surface of the band-type brake (9 is screwed with the external thread, and the end of the band-type brake (9, the outer surface of the tailstock (17) is provided with a locating pin (8), and the locating pin (8) is inserted into a locating hole of the inner sleeve (9).
2. A self-contained mechanical band-type brake on a top axle as defined in claim 1, wherein: the bearing assembly comprises two angular contact bearings (5) and a bearing sleeve, wherein two ends of the bearing sleeve are respectively provided with one angular contact bearing (5), an inner ring of the angular contact bearing (5) is contacted with the main shaft (3), and an outer ring of the angular contact bearing (5) is contacted with the inner sleeve (9).
3. A self-contained mechanical band-type brake on a top axle as defined in claim 2, wherein: the bearing sleeve comprises a bearing outer sleeve (6) and a bearing inner sleeve (7), the bearing outer sleeve (6) is sleeved outside the bearing inner sleeve (7), the bearing inner sleeve (7) is contacted with the main shaft (3), and the bearing outer sleeve (6) is contacted with the inner sleeve (9).
4. A self-contained mechanical band-type brake on a top axle as defined in claim 1, wherein: a spring backing ring (11) is arranged between the clamping spring (10) and the outer sleeve (4).
5. A self-contained mechanical band-type brake on a top axle as defined in claim 1, wherein: a main shaft sealing end cover (1) is arranged at a gap between the end part of the inner sleeve (9) and the main shaft (3).
6. A self-contained mechanical band-type brake on a top axle as defined in claim 1, wherein: an outer sleeve sealing end cover (2) is arranged at a gap between the end part of the outer sleeve (4) and the inner sleeve (9).
7. A self-contained mechanical band-type brake on a top axle as defined in claim 1, wherein: the tailstock (17) is matched with a piston of the first cylinder.
8. A self-contained mechanical band-type brake on a top axle as defined in claim 1, wherein: the tail seat (17) is connected with a piston of the second cylinder through a U-shaped shifting fork (18), the U-shaped shifting fork (18) is arranged at the end part of the second cylinder piston, and the end part of the U-shaped shifting fork (18) is inserted into a through hole of the tail seat (17) and props against the band-type brake body (16), and a shaft of the servo motor is connected with the second cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321538580.0U CN220515433U (en) | 2023-06-16 | 2023-06-16 | From top axle of taking machinery band-type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321538580.0U CN220515433U (en) | 2023-06-16 | 2023-06-16 | From top axle of taking machinery band-type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220515433U true CN220515433U (en) | 2024-02-23 |
Family
ID=89932523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321538580.0U Active CN220515433U (en) | 2023-06-16 | 2023-06-16 | From top axle of taking machinery band-type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220515433U (en) |
-
2023
- 2023-06-16 CN CN202321538580.0U patent/CN220515433U/en active Active
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