CN210412601U - Wheel hub anchor clamps - Google Patents
Wheel hub anchor clamps Download PDFInfo
- Publication number
- CN210412601U CN210412601U CN201921369116.7U CN201921369116U CN210412601U CN 210412601 U CN210412601 U CN 210412601U CN 201921369116 U CN201921369116 U CN 201921369116U CN 210412601 U CN210412601 U CN 210412601U
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- chuck
- hub
- bevel gear
- arc
- bearing seat
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Abstract
A hub clamp comprises a chuck and a clamping device, wherein the clamping device comprises an arc-shaped clamp and a bearing seat, the bottom of the bearing seat is fixedly connected with a threaded fixing piece, and the threaded fixing piece is used for connecting the bearing seat and the chuck; the clamping device comprises a clamping device, a clamping device and a buffer device, wherein the clamping device comprises a clamping disc, a hub and a threaded fixing piece, the clamping disc is provided with a convex part, the upper part of the clamping disc is provided with three soil-shaped slide rails which are uniformly distributed, each slide rail is connected with a slide block in a sliding manner, the slide blocks are in threaded connection with the threaded fixing piece, a bearing seat of the clamping device and an arc clamp form a trapezoidal step, the convex part of the bearing seat is used for bearing and receiving the hub, the upper part of the bearing seat is also provided with the buffer device, the buffer device comprises a fixed seat, a limiting sleeve, a piston rod and; the utility model discloses have the effect that reduces wheel hub to the impact force of equipment.
Description
Technical Field
The utility model belongs to the technical field of the technique of anchor clamps and specifically relates to a hub anchor clamps is related to.
Background
In recent years, with the development of economy, commercial vehicles in China are more and more widely applied, a hub is also a key part of an automobile chassis, the coaxiality of bearing holes at two ends is very important to guarantee in the hub machining, the requirement on the hub clamping during machining is higher, and the machining precision of the hub is directly influenced if the clamping cannot meet the requirement.
When the wheel hub is machined on the vertical lathe, the wheel hub has impact force on a lower chuck when the wheel hub is placed, and the equipment is damaged, so that the equipment needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wheel hub anchor clamps, the utility model discloses have the technological effect who reduces wheel hub to the impact force of equipment.
The above object of the present invention can be achieved by the following technical solutions:
a hub clamp comprises a chuck and a clamping device, wherein the clamping device comprises an arc-shaped clamp and a bearing seat, the bottom of the bearing seat is fixedly connected with a threaded fixing part, the threaded fixing part is used for connecting the bearing seat and the chuck, three soil-shaped slide rails which are uniformly distributed are arranged at the upper part of the chuck, each slide rail is slidably connected with a slide block, and the slide blocks are in threaded connection with the threaded fixing part; clamping device's bearing and arc press from both sides and constitute a trapezoidal step, and the bulge of bearing is used for holding wheel hub, and bearing upper portion still is provided with a buffer, buffer includes fixing base, spacing sleeve, piston rod and pressure spring, and the fixing base can be dismantled and connect on the chuck, and spacing sleeve can be dismantled with the fixing base and be connected, and the pressure spring is placed inside spacing sleeve, and the piston rod is pegged graft and is got into spacing sleeve and piston rod bottom surface and pressure spring conflict.
By adopting the technical scheme: the bearing seat and the arc clamp form a trapezoidal step, the protruding part of the bearing seat is used for bearing the hub, impact on the chuck when the hub is placed can be prevented, and the buffering device is arranged to further reduce the mutual impact force between the hub and the bearing seat.
The utility model discloses further set up to: the fixing base is connected with the chuck through bolts, a column groove is formed in the middle of the fixing base, the bottom end of the pressure spring is abutted to the bottom surface of the column groove, and the fixing base is used for fixing the limiting sleeve on the chuck.
By adopting the technical scheme: the fixing base is used for being fixed in the chuck with spacing sleeve on, and the post groove can carry on spacingly to the pressure spring lower extreme.
The utility model discloses further set up to: the lower part of the limiting sleeve is connected with a fixing ring, and the fixing ring is connected with a fixing seat bolt.
By adopting the technical scheme: the fixing ring is used for connecting the fixing sleeve on the fixing seat more stably.
The utility model discloses further set up to: the upper part of the piston rod is fixedly connected with a pressing plate, and the outer diameter of the pressing plate is larger than the inner diameter of the limiting sleeve.
By adopting the technical scheme: the area of the contact surface of the pressure plate and the hub is increased, the impact pressure generated by the contact surface of the pressure plate and the hub is reduced, and the damage to equipment is reduced.
The utility model discloses further set up to: the inner wall of the upper portion of the limiting sleeve is fixedly connected with a limiting ring, the bottom of the piston rod is fixedly connected with a pressure plate, the upper surface of the pressure plate can abut against the lower surface of the limiting ring, and the lower surface of the pressure plate is arranged to be stepped.
By adopting the technical scheme: the position of the piston rod is limited by the limiting ring and the pressure plate, so that the piston rod cannot be ejected out of the limiting sleeve by the pressure spring.
The utility model discloses further set up to: the concave cambered surface of the arc-shaped clamp is fixedly connected with a protruding clamping block.
By adopting the technical scheme: the clamp is easy to wear when the hub is clamped, and the arrangement of the clamping blocks can reduce the wear to equipment.
The utility model discloses further set up to: the end part of the clamping block is a cambered surface, the radian of the cambered surface is consistent with the inward concave radian of the arc-shaped clamp, and the cambered surface is provided with an anti-skidding groove parallel to the circular surface of the chuck.
By adopting the technical scheme: the anti-skidding grooves parallel to the chuck are formed in the surface of the clamping block, so that the axial friction force of the contact surface can be increased, and the clamping of the clamp on the hub is more effective.
The utility model discloses further set up to: the bottom of the sliding block is provided with transverse threads, a large bevel gear and three small bevel gears are arranged inside the chuck, the large bevel gear is rotationally connected inside the chuck and the axes of the large bevel gear and the chuck coincide, the three small bevel gears are rotationally connected with the curved surface of the chuck, the three small bevel gears are uniformly distributed on the tooth surface of the large bevel gear, the small bevel gears are in meshing transmission with the large bevel gear, the large bevel gear is provided with plane threads on the end surface opposite to the tooth surface, and the plane threads and the transverse threads are matched with each other to form spiral transmission.
By adopting the technical scheme: the threaded fixing piece is in threaded connection with the sliding block, so that the clamping device can be conveniently replaced when different hubs are clamped.
The utility model discloses further set up to: the outer end part of the small bevel gear is provided with a square groove, a preformed hole is formed in the position, corresponding to the square groove, of the outer part of the chuck, and the small bevel gear is connected with the preformed hole in an inserting mode.
By adopting the technical scheme: the preformed hole is used for enabling the small bevel gear to be close to or far away from the central position; an external wrench extends into the square groove to rotate the small bevel gear, so that the large bevel gear meshed with the small bevel gear is driven to rotate, and then the three clamping devices are driven to approach the center to clamp a workpiece, or the clamping devices are far away from the center to loosen the workpiece.
The utility model discloses further set up to: the external part of the thread fixing piece is inverted T-shaped, and the protruding part of the thread fixing piece is positioned in the groove at the opening end of the soil-shaped sliding rail after the thread fixing piece is in threaded connection with the sliding block.
By adopting the technical scheme: the protruding part of the threaded fixing piece is positioned in the groove at the opening end of the sliding rail, so that the equipment can be connected more firmly in the axial direction.
To sum up, the utility model discloses a beneficial technological effect does:
1. the bearing seat and the arc clamp form a trapezoidal step, the protruding part of the bearing seat is used for bearing the hub, the impact on the chuck when the hub is placed can be prevented, and the buffer device can further reduce the mutual impact force of the hub and the bearing seat;
2. the threaded fixing piece is in threaded connection with the sliding block, so that the clamping device can be conveniently replaced when different hubs are clamped, and the protruding part of the threaded fixing piece is located in the groove at the opening end of the soil-shaped sliding rail, so that the equipment can be connected and fastened in the axial direction.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic view of the internal structure of the buffer device of the present invention;
fig. 4 is a schematic structural view of the clamping block of the present invention.
Reference numerals: 1. a chuck; 11. a slide rail; 12. a slider; 121. transverse threads; 13. a large bevel gear; 131. a planar thread; 14. a bevel pinion gear; 141. a square groove; 15. reserving a hole; 2. a buffer device; 21. a fixed seat; 211. a column groove; 22. a limiting sleeve; 221. a fixing ring; 222. a limiting ring; 23. a piston rod; 231. pressing a plate; 232. a platen; 24. a pressure spring; 3. a clamping device; 31. an arc-shaped clamp; 311. a clamping block; 312. an anti-slip groove; 32. a bearing seat; 321. and (4) a threaded fastener.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a hub fixture, including a chuck 1, chuck 1 is inside to be equipped with a big bevel gear 13 and three bevel pinion 14, big bevel gear 13 rotates to be connected inside chuck 1 and the coincidence of the two axle centers, three bevel pinion 14 rotates with the curved surface of chuck 1 lateral part to be connected, three bevel pinion 14 evenly distributed is on the flank of tooth of big bevel gear 13, bevel pinion 14 and big bevel gear 13 meshing transmission, and the outer tip of bevel pinion 14 has seted up square groove 141, square groove 141 is used for pegging graft with outside spanner, the outside of chuck 1 has seted up preformed hole 15 with the position that square groove 141 corresponds, bevel pinion 14 pegs graft into preformed hole 15, preformed hole 15 is used for making bevel pinion 14 be close to or keep away from central point; the upper portion of the chuck 1 is provided with three soil-shaped sliding rails 11 which are uniformly distributed, each sliding rail 11 is connected with a sliding block 12 in a sliding mode, each sliding block 12 is located in a groove, far away from the opening end, of each sliding rail 11, the bottom of each sliding block 12 is provided with a transverse thread 121, a plane thread 131 is formed in the end face, opposite to the tooth surface, of each large bevel gear 13, and the plane thread 131 and the transverse thread 121 are matched with each other to form spiral transmission.
Referring to fig. 1 and 4, the clamping device 3 is arranged at the upper part of the chuck 1, the clamping device 3 comprises a bearing seat 32, a threaded fixing member 321 is fixedly connected to the lower part of the bearing seat 32, the threaded fixing member 321 is used for connecting the sliding block 12 and the bearing seat 32, the outer part of the threaded fixing member 321 is in an inverted T shape, and the protruding part of the T shape after the threaded fixing member 321 is in threaded connection with the sliding block 12 is positioned in the groove at the opening end of the sliding rail 11 in the shape of the Chinese character; the upper part of the bearing seat 32 is fixedly connected with the arc-shaped clamp 31, and the bearing seat 32 and the arc-shaped clamp 31 form a trapezoidal step so as to be capable of bearing the wheel hub; the plurality of protruding clamping blocks 311 are fixedly connected to the concave arc surface of the arc-shaped clamp 31, the clamping blocks 311 can reduce abrasion of the arc-shaped clamp 31, the end portion of each clamping block 311 is an arc surface, the radian of the arc surface is consistent with the concave radian of the arc-shaped clamp 31, the arc surface is provided with an anti-skidding groove 312 parallel to the chuck 1, and the anti-skidding groove 312 is arranged to effectively prevent the hub and the clamp from axial displacement.
Referring to fig. 1 and 3, a buffer device 2 is arranged on a chuck 1, the buffer device 2 comprises a fixed seat 21 connected with the chuck 1 through a bolt, and a limit sleeve 22 is arranged on the fixed seat 21; the lower end of the limiting sleeve 22 is fixedly connected with a fixing ring 221, the fixing ring 221 is used for connecting the limiting sleeve 22 with the fixing seat 21, the fixing ring 221 is in bolted connection with the fixing seat 21, the upper end of the limiting sleeve 22 is fixedly connected with a limiting ring 222, the limiting sleeve 22 is inserted with the piston rod 23, the upper end of the piston rod 23 is fixedly connected with a pressing plate 231, the outer diameter of the pressing plate 231 is larger than the inner diameter of the limiting sleeve 22, the lower end of the piston rod 23 extends into the limiting sleeve 22 from the hollow part of the limiting ring 222, the end part of the piston rod 23, which is positioned in the limiting sleeve 22, is fixedly connected with a pressing plate 232, the outer diameter of the pressing plate 232 is larger than the inner diameter of the limiting ring 222, the upper surface of the pressing plate 232 and the lower surface of the; a pressure spring 24 is placed in a cavity of the limiting sleeve 22, a column groove 211 is formed in the middle of the upper wall of the fixed seat 21, two ends of the pressure spring 24 are respectively abutted against the bottom surfaces of the pressure plate 232 and the column groove 211, and meanwhile, the stepped part of the lower surface of the pressure plate 232 and the column groove 211 limit the position of the pressure spring 24; when the hub is placed, the surface of the hub firstly abuts against the upper surface of the pressing plate 231, then the pressing plate 232 is pushed to press the pressure spring 24, and then the hub abuts against the protruding part of the bearing seat 32.
The implementation principle of the embodiment is as follows: an external wrench extends into the square groove 141 to drive the small bevel gear 14 to rotate, so that the large bevel gear 13 meshed with the small bevel gear 14 is rotated, the three clamping devices 3 are driven to be far away from the center, the hub is placed on the fixture, the surface of the hub is firstly abutted to the pressing plate 231 of the buffer device 2, the pressing plate 232 is further pushed to extrude the pressure spring 24, the pressure spring 24 is made to shrink, meanwhile, a part of the impact force of the hub on the fixture is buffered, and the hub is abutted to the convex part of the bearing 32 until the surface of the hub is abutted to the convex part of the bearing 32.
After the hub is machined, the small bevel gear 14 is rotated reversely by a wrench, the small bevel gear 14 drives the large bevel gear 13 to rotate reversely, then the three clamping devices 3 are driven to be close to the center, the hub is clamped, and the hub can be machined by pulling out the wrench.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. A hub clamp comprising a chuck (1), characterized in that: the clamping device (3) comprises an arc-shaped clamp (31) and a bearing seat (32), a threaded fixing piece (321) is fixedly connected to the bottom of the bearing seat (32), the threaded fixing piece (321) is used for connecting the bearing seat (32) and the chuck (1), three soil-shaped sliding rails (11) which are uniformly distributed are arranged on the upper portion of the chuck (1), each sliding rail (11) is slidably connected with a sliding block (12), and the sliding blocks (12) are in threaded connection with the threaded fixing piece (321); bearing (32) of clamping device (3) press from both sides (31) with the arc and constitute a trapezoidal step, and the bulge of bearing (32) is used for accepting wheel hub, and bearing (32) upper portion still is provided with a buffer (2), buffer (2) are including fixing base (21), spacing sleeve (22), piston rod (23) and pressure spring (24), and fixing base (21) can be dismantled and connect on chuck (1), and spacing sleeve (22) can be dismantled with fixing base (21) and be connected, and pressure spring (24) place inside spacing sleeve (22), and piston rod (23) are pegged graft and are got into spacing sleeve (22) and piston rod (23) bottom surface and pressure spring (24) and are contradicted.
2. A hub clamp according to claim 1, wherein: fixing base (21) and chuck (1) bolted connection, and a column groove (211) have been seted up at fixing base (21) middle part, and pressure spring (24) bottom is contradicted with column groove (211) bottom surface, and fixing base (21) are used for being fixed in on chuck (1) spacing sleeve (22).
3. A hub clamp according to claim 2, wherein: the lower part of the limiting sleeve (22) is connected with a fixing ring (221), and the fixing ring (221) is connected with a fixing seat (21) through a bolt.
4. A hub clamp according to claim 2, wherein: the upper part of the piston rod (23) is fixedly connected with a pressure plate (231), and the outer diameter of the pressure plate (231) is larger than the inner diameter of the limiting sleeve (22).
5. A hub clamp according to claim 4, wherein: spacing sleeve (22) upper portion inner wall fixedly connected with spacing ring (222), the bottom fixedly connected with pressure disk (232) of piston rod (23), the lower surface of pressure disk (232) upper surface and spacing ring (222) can contradict, pressure disk (232) lower surface sets up to the echelonment.
6. A hub clamp according to claim 1, wherein: the concave cambered surface of the arc clamp (31) is fixedly connected with a protruding clamping block (311).
7. A hub clamp according to claim 6, wherein: the end part of the clamping block (311) is an arc surface, the radian of the arc surface is consistent with the concave radian of the arc clamp (31), and an anti-skid groove (312) parallel to the circular surface of the chuck (1) is formed in the arc surface.
8. A hub clamp according to claim 1, wherein: the bottom of the sliding block (12) is provided with a transverse thread (121), a large bevel gear (13) and three small bevel gears (14) are arranged inside the chuck (1), the large bevel gear (13) is rotationally connected inside the chuck (1) and the axes of the large bevel gear and the chuck (1) coincide, the three small bevel gears (14) are rotationally connected with the curved surface of the chuck (1), the three small bevel gears (14) are uniformly distributed on the tooth surfaces of the large bevel gear (13), the small bevel gear (14) is in meshing transmission with the large bevel gear (13), the large bevel gear (13) is provided with a plane thread (131) on the end surface opposite to the tooth surfaces, and the plane thread (131) and the transverse thread (121) are matched with each other to form spiral transmission.
9. A hub clamp according to claim 8, wherein: the outer end of the small bevel gear (14) is provided with a square groove (141), a preformed hole (15) is formed in the position, corresponding to the square groove, of the outer portion of the chuck (1), and the small bevel gear (14) is connected with the preformed hole (15) in an inserting mode.
10. A hub clamp according to claim 9, wherein: the external part of the threaded fixing piece (321) is inverted T-shaped, and the protruding part of the threaded fixing piece (321) is positioned in the groove of the opening end of the soil-shaped sliding rail (11) after the threaded fixing piece (321) is in threaded connection with the sliding block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921369116.7U CN210412601U (en) | 2019-08-21 | 2019-08-21 | Wheel hub anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921369116.7U CN210412601U (en) | 2019-08-21 | 2019-08-21 | Wheel hub anchor clamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210412601U true CN210412601U (en) | 2020-04-28 |
Family
ID=70363872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921369116.7U Active CN210412601U (en) | 2019-08-21 | 2019-08-21 | Wheel hub anchor clamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210412601U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569976A (en) * | 2020-05-27 | 2020-08-25 | 衡阳师范学院 | Centrifuging tube strutting arrangement |
| CN111730518A (en) * | 2020-06-30 | 2020-10-02 | 刁占柱 | Wheel hub fixing device of automobile wheel hub processing usefulness |
| CN112729677A (en) * | 2020-12-30 | 2021-04-30 | 杭州集智机电股份有限公司 | Test clamping device for hub balancing machine |
-
2019
- 2019-08-21 CN CN201921369116.7U patent/CN210412601U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569976A (en) * | 2020-05-27 | 2020-08-25 | 衡阳师范学院 | Centrifuging tube strutting arrangement |
| CN111569976B (en) * | 2020-05-27 | 2022-02-01 | 衡阳师范学院 | Centrifuging tube strutting arrangement |
| CN111730518A (en) * | 2020-06-30 | 2020-10-02 | 刁占柱 | Wheel hub fixing device of automobile wheel hub processing usefulness |
| CN112729677A (en) * | 2020-12-30 | 2021-04-30 | 杭州集智机电股份有限公司 | Test clamping device for hub balancing machine |
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Effective date of registration: 20201224 Address after: 265700 no.386 Houtian village, Xufu street, Longkou City, Yantai City, Shandong Province Patentee after: Tian Shiliang Address before: 265700 Houtian village, Xufu Town, Longkou City, Yantai City, Shandong Province Patentee before: Longkou Tengfei Auto Parts Manufacturing Co.,Ltd. |