CN212600701U

CN212600701U - Locking mechanism of hub wire drawing machine and hub wire drawing machine

Info

Publication number: CN212600701U
Application number: CN201922474133.3U
Authority: CN
Inventors: 张春明; 常忠; 邓子安
Original assignee: Foshan Nanhai Anchi Aluminium Wheel Co ltd
Current assignee: Foshan Nanhai Anchi Aluminium Wheel Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-02-26
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a locking mechanism of a hub wire drawing machine, which comprises a frame for supporting a hub, wherein an expansion component is arranged on the frame corresponding to the center hole of the hub, the expansion component comprises an expansion slide block, a linkage inclined block is arranged on the inner side of the expansion slide block, and an inclined plane is formed on the inner side of the expansion slide block and the outer side of the linkage inclined block; the expansion sliding block is connected with a linkage driving device, and the linkage driving device drives the expansion sliding block to reciprocate towards the direction of the linkage inclined block, so that the outer side of the expansion sliding block is in locking fit with the central hole of the hub. The utility model has the advantages that: the locking device has the advantages that the locking effect on the hub is stronger, the locking and unlocking processes are convenient, the disassembly is convenient, the service life of the device is long, and the production cost is reduced.

Description

Locking mechanism of hub wire drawing machine and hub wire drawing machine

Technical Field

The utility model belongs to the machining field especially relates to a wheel hub wire drawing machine locking mechanism and wheel hub wire drawing machine.

Background

Automobile wheel hub repacking and individualized customization are an important development trend of automobile wheel hub development, and wheel hub carries out the wire drawing according to user's demand after the shaping on wheel hub surface. The wire drawing is to fix the hub and then perform wire drawing by the wire drawing device for rotation. Because the hub needs to be driven to rotate at a high speed in the wire drawing process, the wire drawing process can be seriously influenced if the hub cannot be well fixed, and the fixation of the hub is particularly important. In the prior art, there are various ways of locking the hub, but a problem is common: the lock is difficult to disassemble and loose and not firm. Therefore, a locking mechanism which is firmly locked and is convenient to disassemble is needed to lock the hub in the wire drawing process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wheel hub wire drawing machine locking mechanism and wheel hub wire drawing machine to solve locking intensity not enough, dismantle inconvenient problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a locking mechanism of a hub wire drawing machine comprises a rack for supporting a hub, wherein an expansion assembly is arranged on the rack corresponding to a central hole of the hub and comprises an expansion sliding block, a linkage inclined block is arranged on the inner side of the expansion sliding block, and an inclined plane is formed on the inner side of the expansion sliding block and the outer side of the linkage inclined block; the expansion sliding block is connected with a linkage driving device, and the linkage driving device drives the expansion sliding block to reciprocate towards the direction of the linkage inclined block, so that the outer side of the expansion sliding block is in locking fit with the central hole of the hub.

The working principle of the technical scheme is as follows:

the hub is erected on a frame, an expansion sliding block is arranged at a position corresponding to a central hole of the hub, a linkage driving device drives the expansion sliding block to move towards a linkage inclined block, the expansion sliding block expands towards the radial direction of the expansion sliding block through the inclined plane matching, and the outer wall of the expansion sliding block is tightly attached to the inner wall of the central hole of the hub, so that the purpose of locking the hub is achieved. When the hub is to be disassembled, the linkage driving device drives the expansion sliding block to move towards the direction far away from the linkage inclined block, the expansion sliding block contracts along the radial direction of the expansion sliding block, the outer wall of the expansion sliding block is separated from the inner wall of the center hole of the hub, the unlocking purpose is achieved, and the hub can be disassembled at the moment.

Specifically, the linkage driving device comprises a linkage shaft rod connected with the expansion sliding block, an elastic assembly is arranged between the linkage shaft rod and the rack, the linkage shaft rod is connected with a pneumatic pushing part, and the pneumatic pushing part is linked with the linkage shaft rod to apply locking tension towards the direction of the linkage inclined block to the expansion sliding block; the elastic component linkage shaft rod applies reset elasticity to the expansion sliding block in the direction far away from the linkage inclined block. After the pneumatic pushing part starts to work, the pneumatic pushing part is linked with the linkage shaft rod to apply locking tension to the expansion sliding block, so that the expansion sliding block moves towards the direction of the linkage inclined block, the hub is locked, and the elastic assembly is compressed; after the pneumatic pushing part is closed, the elastic component rebounds and applies reset elasticity to the linkage inclined block to enable the linkage inclined block to move towards the direction far away from the expansion sliding block, so that the purpose of unlocking the hub is achieved.

Specifically, the pneumatic pushing and pressing part comprises an air pump, the air pump extends to be provided with an air guide pipe to be connected with a pneumatic piston, the movable end of the pneumatic piston is connected with a tensioning block, and the tensioning block is connected with a linkage shaft rod. When the air pump is in an opening state, the air pump inflates towards the direction of the pneumatic piston, so that the tensioning block applies tension to the linkage shaft rod, and the hub is locked.

Specifically, one side of the frame, which is far away from the linkage inclined block, is provided with a limiting part, and the elastic component comprises a spring part arranged between the tensioning block and the limiting part. The limiting part is used for limiting the position of the spring part, and the spring part is compressed between the limiting part and the tensioning block and then used for applying reset elastic force to the expansion sliding block.

Specifically, the linkage inclined block is conical, and the conical bottom of the linkage inclined block is far away from the expansion sliding block; the expansion sliding block is cylindrical, and the inner side of the expansion sliding block is provided with a sliding block conical surface matched with the linkage inclined block; the expansion sliding block is sleeved on the upper side of the linkage inclined block and is coaxially arranged with the linkage inclined block. The conical inclined plane is more favorable for the conical fit of the linkage inclined block and the sliding block, the expansion sliding block and the linkage inclined block are coaxially arranged, so that the combination degree between the expansion sliding block and the linkage inclined block is higher, the stress is larger, and the hub can be locked better.

Specifically, the upper end of the linkage shaft lever is connected with the axis position of the expansion sliding block in a penetrating way; the lower end of the linkage shaft lever is connected with the tensioning block. The expansion sliding block and the tensioning block are connected through the linkage shaft lever, the integrity of the linkage driving device is enhanced, and the service life of the locking mechanism is prolonged.

Specifically, the upper end of the linkage shaft rod extends to the position above the expansion sliding block, a pressing part is formed, a pressing block is arranged between the pressing part and the expansion sliding block, and the pressing block is in contact connection with the upper side of the expansion sliding block. After the air pump is inflated, the linkage shaft lever is pressed on the expansion sliding block through the pressing part to drive the expansion sliding block to move towards the linkage inclined block; the effect of nip portion lies in guaranteeing under the condition of certain pressfitting dynamics, and nip portion can not cause the damage to the inflation slider.

The utility model also discloses a wheel hub wire drawing machine, include as above locking mechanism and drive locking mechanism make self-rotation motion's rotation actuating mechanism around its center pin, the locking mechanism upside is provided with wire drawing mechanism. After the locking mechanism locks the hub, the driving mechanism is rotated to drive the hub of the locking mechanism to rotate automatically, and meanwhile, the wire drawing mechanism performs wire drawing work.

Specifically, a rotating shaft is arranged at the middle shaft position of the locking mechanism, the rotation driving mechanism comprises a driving rotating shaft and a motor for driving the driving rotating shaft to do rotation motion, and the driving rotating shaft and the rotating shaft are in belt transmission.

The utility model has the advantages that: the locking device has the advantages that the locking effect on the hub is stronger, the locking and unlocking processes are convenient, the disassembly is convenient, the service life of the device is long, and the production cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a hub drawing machine in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an expansion slider according to an embodiment of the present invention.

Description of reference numerals: 1. a hub; 2. an expansion slide block; 3. linkage inclined blocks; 4. a frame; 5. a linkage shaft lever; 6. an air pump; 7. an air duct; 8. tensioning the plate; 9. a limiting part; 10. a spring portion; 11. a press-fit portion; 12. pressing blocks; 13. a wire drawing mechanism; 14. a rotating shaft; 15, a belt; 16. driving the rotating shaft; 17. a motor; 18. a slider conical surface; 19. a tapered cavity; 20. an inner cavity; 21. an air cavity.

Detailed Description

In order to make the technical solution of the present invention better understood and make the above objects, features and advantages of the present invention more obvious and understandable, the present invention is further described below with reference to the accompanying drawings and examples.

As shown in fig. 1-2, a locking mechanism of a hub wire drawing machine comprises a frame 4, an expansion assembly and a linkage inclined block 3, wherein a hub 1 is erected on the frame 4.

The expansion assembly comprises an expansion sliding block 2, the expansion sliding block 2 is arranged in a central hole of the hub 1, the expansion sliding block 2 is cylindrical in shape, a conical cavity 19 is arranged in the expansion sliding block 2, and a sliding block conical surface 18 is formed on the inner wall of the conical cavity 19; the bottom of the conical cavity 19 is arranged downwards and is provided with an opening; the linkage sloping block 3 is conical, the shape of the linkage sloping block is similar to that of the conical cavity 19, and the volume of the linkage sloping block is slightly larger than that of the conical cavity 19. The linkage sloping block 3 is arranged below the expansion sliding block 2, the top of the linkage sloping block is opened towards the bottom of the conical cavity 19, and the outer surface of the linkage sloping block is attached to the conical surface 18 of the sliding block.

The locking mechanism further comprises a linkage driving device. The linkage driving device comprises a linkage shaft lever 5, one end of the linkage shaft lever 5 is connected with a pneumatic pushing part, and the other end of the linkage shaft lever extends to the upper part of the expansion sliding block 2 and is provided with a pressing part 11. The linkage shaft lever 5, the linkage inclined block 3 and the expansion sliding block 2 are coaxially arranged. The pneumatic pushing part comprises an air pump 6, an air duct 7 and a pneumatic piston, and the lower end of the pneumatic piston is connected with a tensioning block 8. An inner cavity 6 is arranged in the frame 4, and the tensioning block 8 is arranged in the inner cavity 20 and can move up and down in the inner cavity 20; the inner cavity 20 is divided into upper and lower portions by the tension block 8. The part of the inner cavity 20 above the tensioning block 8 is an air cavity 21, and the air cavity 21 is connected with the air pump 6 through an air duct 7 and communicated with each other.

The lower side of the rack 4 is further provided with a limiting part 9, an elastic component is arranged between the limiting part 9 and the tensioning block 8, the elastic component comprises a spring part 10, the spring part 10 and the linkage shaft rod 5 are coaxially arranged, the upper end of the spring part is connected with the bottom side of the tensioning block 8, and the lower end of the spring part faces the limiting part 9.

The embodiment also discloses an applied this locking mechanism's wheel hub wire drawing machine, and this wheel hub wire drawing machine includes wire drawing mechanism 13 and rotation driving mechanism, and rotation driving mechanism includes axis of rotation 14 and motor 17, and axis of rotation 14 sets up on locking mechanism's below the center pin, and motor 17 is connected with drive pivot 16, and drive pivot 16 and axis of rotation 14 pass through belt 15 and connect the transmission.

The working principle of the locking mechanism in the embodiment is as follows:

the air pump 6 is opened, the air pump 6 inflates air into the air cavity 21 through the air guide tube 7, the amount of the air in the air cavity 21 is increased, the air cavity 21 generates downward pulling force to the tensioning block 8 after the volume of the air cavity 21 is increased, and the tensioning block 8 is pulled down. The tension block 8 applies a downward locking tension toward the interlocking slant block 3 to the expansion slider 2 by the transmission of the interlocking shaft 5, and compresses the spring part 10. The expansion sliding block 2 moves towards the linkage inclined block 3 under the pulling of locking tension, the conical cavity 19 is sleeved on the linkage inclined block 3 from the opening of the expansion sliding block 2, the sliding conical surface 18 of the expansion sliding block 2 is spread in the process of moving towards the linkage inclined block 3, the expansion sliding block 2 expands along the radial direction of the expansion sliding block, the outer wall of the expansion sliding block 2 is tightly attached to the inner wall of the central hole of the hub 1 to form locking, and the sleeving depth of the expansion sliding block 2 on the linkage inclined block 3 is adjusted according to requirements.

After the hub 1 is locked, the motor 17 is started, the rotating speed of the motor 17 is controlled within the range of 200r/min-300r/min, the motor 17 drives the driving rotating shaft 16 to rotate, the driving rotating shaft 16 transmits power to the rotating shaft 14 through the belt 15, and the rotating shaft 14 drives the locking mechanism to rotate around the central shaft of the locking mechanism. At this time, the wire drawing mechanism 13 above the locking mechanism draws the hub 1.

When the hub 1 needs to be disassembled, the air pump 6 needs to be closed, the air cavity 21 stops being inflated, the compressed spring part 10 generates pulling force on the tensioning block 8, and the tensioning block 8 applies reset elastic force to the linkage inclined block 3 through the transmission of the linkage shaft rod 5, so that the expansion sliding block 2 moves away from the linkage inclined block 3. The outer surface of the linkage inclined block 3 is separated from the sliding conical surface 18, the expansion sliding block 2 radially contracts until the outer wall of the expansion sliding block 2 is separated from the inner wall of the central hole of the hub 1, and the hub 1 can be detached at the moment.

The preferred embodiment of the present invention is only listed in the present specification, and all the technical changes equivalent to those made under the working principle and thought of the present invention are considered as the protection scope of the present invention.

Claims

1. The utility model provides a wheel hub wire drawing machine locking mechanical system which characterized in that: the wheel hub bearing device comprises a machine frame (4) used for bearing a wheel hub (1), wherein an expansion assembly is arranged on the machine frame (4) corresponding to a center hole of the wheel hub (1), the expansion assembly comprises an expansion sliding block (2), a linkage inclined block (3) is arranged on the inner side of the expansion sliding block (2), and an inclined plane is formed on the inner side of the expansion sliding block (2) and the outer side of the linkage inclined block (3) to be matched; the expansion sliding block (2) is connected with a linkage driving device, the linkage driving device drives the expansion sliding block (2) to reciprocate towards the linkage inclined block (3) so that the outer side of the expansion sliding block (2) and a center hole of the hub (1) form locking fit.

2. The latch mechanism of claim 1, wherein: the linkage driving device comprises a linkage shaft lever (5) connected with the expansion sliding block (2), an elastic assembly is arranged between the linkage shaft lever (5) and the rack (4), the linkage shaft lever (5) is connected with a pneumatic pushing part, and the pneumatic pushing part is linked with the linkage shaft lever (5) to apply locking tension towards the direction of the linkage inclined block (3) to the expansion sliding block (2); the elastic component is linked with the linkage shaft lever (5) to apply reset elastic force to the expansion sliding block (2) in the direction away from the linkage inclined block (3).

3. The latch mechanism of claim 2, wherein: the pneumatic pushing and pressing part comprises an air pump (6), the air pump (6) is provided with an air guide pipe (7) in an extending mode so as to be connected with a pneumatic piston, the movable end of the pneumatic piston is connected with a tensioning block (8), and the tensioning block (8) is connected with the linkage shaft lever (5).

4. The latch mechanism of claim 3, wherein: frame (4) are kept away from linkage sloping block (3) one side is provided with spacing portion (9), elastic component is including setting up tensioning block (8) with spring portion (10) between spacing portion (9).

5. The latch mechanism of claim 1, wherein: the linkage inclined block (3) is conical, and the conical bottom of the linkage inclined block is far away from the expansion sliding block (2); the expansion sliding block (2) is cylindrical, and a sliding block conical surface matched with the linkage inclined block (3) is arranged on the inner side of the expansion sliding block; the expansion sliding block (2) is sleeved on the upper side of the linkage inclined block and is coaxially arranged with the linkage inclined block (3).

6. The latch mechanism of claim 3, wherein: the upper end of the linkage shaft lever (5) is arranged at the axis position of the expansion sliding block (2) in a penetrating way; the lower end of the linkage shaft lever (5) is connected with the tensioning block (8).

7. The latch mechanism of claim 6, wherein: the upper end of the linkage shaft lever (5) extends to the position above the expansion sliding block (2) and is provided with a pressing part (11), a pressing block (12) is arranged between the pressing part (11) and the expansion sliding block (2), and the pressing block (12) is in contact with the upper side of the expansion sliding block (2).

8. The utility model provides a hub wire drawing machine which characterized in that: comprising a locking mechanism according to any one of claims 1 to 7 and a rotation driving mechanism for driving the locking mechanism to perform self-rotation movement around a central axis of the locking mechanism, wherein a wire drawing mechanism (13) is arranged on the upper side of the locking mechanism.

9. The hub drawing machine of claim 8, wherein: a rotating shaft (14) is arranged at the middle shaft position of the locking mechanism, the rotation driving mechanism comprises a driving rotating shaft (16) and a motor (17) for driving the driving rotating shaft (16) to rotate, and a belt (15) is used for transmission between the driving rotating shaft (16) and the rotating shaft (14).