CN215747847U

CN215747847U - Special fixture for balance shaft drilling machine

Info

Publication number: CN215747847U
Application number: CN202121488650.7U
Authority: CN
Inventors: 周逢春
Original assignee: Chongqing Yunyang Crankshaft Co ltd
Current assignee: Chongqing Yunyang Crankshaft Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-08
Anticipated expiration: 2031-06-30

Abstract

The utility model provides a special fixture for a balance shaft drilling machine, which relates to the technical field of shaft part machining and comprises a clamping assembly, a driving assembly and a chip removing unit, wherein the clamping assembly is used for clamping a workpiece, the driving assembly is connected with the clamping assembly and used for driving the workpiece to rotate around the axis of the clamping assembly, the chip removing unit comprises a spray head and an adjusting assembly, the adjusting assembly is used for installing the spray head and can drive the spray head to move along the axial direction of the workpiece, and the spray head is positioned below the workpiece and communicated with a power source. It has solved the problem that can not be convenient among the prior art with the piece clean up in the blind hole.

Description

Special fixture for balance shaft drilling machine

Technical Field

The utility model relates to the technical field of shaft part machining, in particular to a special clamp for a balance shaft drilling machine.

Background

The balance shaft technology is widely applied to the motorcycle engine, has simple and practical structure, can effectively reduce the vibration of the whole motorcycle and improve the driving comfort; need drill on its face of cylinder in the balanced axle course of working, utilize the drilling machine to drill it and utilize the coolant liquid of drilling in-process to wash out the drill chip among the prior art mostly, because the drilling machine during operation often is vertical to the balanced axle drilling, lead to among the prior art cutting fluid can not be convenient with the piece clean up in the blind hole.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a special clamp for a balance shaft drilling machine, which solves the problem that the chips in a blind hole cannot be conveniently cleaned in the prior art.

According to the embodiment of the utility model, the special clamp for the balance shaft drilling machine comprises a clamping assembly, a driving assembly and a chip removing unit, wherein the clamping assembly is used for clamping a workpiece, the driving assembly is connected with the clamping assembly and used for driving the workpiece to rotate around the axis of the clamping assembly, the chip removing unit comprises a spray head and an adjusting assembly, the adjusting assembly is used for mounting the spray head and can drive the spray head to move along the axial direction of the workpiece, and the spray head is positioned below the workpiece and communicated with a power source.

Compared with the prior art, the utility model has the following beneficial effects: through setting up the centre gripping subassembly, link to each other drive assembly and centre gripping subassembly, realize drive assembly drive centre gripping subassembly and drive the axis gyration round work piece self together, through arranging the shower nozzle in the below of work piece and its intercommunication have the power supply and install the shower nozzle on adjusting part, during the use, centre gripping unit centre gripping work piece drives the work piece and revolves round self axis under drive assembly's drive, the machined hole gyration to vertical downwards until the work piece, the shower nozzle is at adjusting part's drive down along the axial displacement of work piece to aiming at the machined hole this moment, the power supply exports rivers or gas to shower nozzle department and then dashes out the iron fillings in the blind hole, therefore, adopt above-mentioned scheme, the problem of iron fillings easy residual in the blind hole has been solved, convenient thorough iron fillings in the blind hole are got rid of.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic diagram of the internal structure of the embodiment of the present invention;

FIG. 4 is a schematic view of the internal structure of FIG. 2;

fig. 5 is a partially enlarged view of fig. 4 at C.

In the above drawings: 1. a workpiece; 2. a spray head; 3. a base; 4. an outer ring body; 5. an inner ring body; 6. a body; 7. a first nut; 8. a spring; 9. a ring gear; 10. a rack; 11. a screw; 12. a guide bar; 13. a hand wheel; 14. a second nut; 15. a collection plate; 16. a discharge passage; 17. a squeegee; 18. and (4) a roller.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in fig. 1 to 5, an embodiment of the present invention provides a special fixture for a balance shaft drilling machine, including a clamping assembly, a driving assembly and a chip removing unit, where the clamping assembly is used to clamp a workpiece 1, the driving assembly is connected to the clamping assembly to drive the workpiece 1 to rotate around its own axis, the chip removing unit includes a nozzle 2 and an adjusting assembly, the adjusting assembly is used to mount the nozzle 2 and can drive the nozzle 2 to move along the axial direction of the workpiece 1 to align with a processing hole on the workpiece 1, the nozzle 2 is located below the workpiece 1 and is communicated with a power source (not shown in the figure) through a pipeline, it should be understood that the structures of the nozzle 2 and the power source are the prior art, for example, the power source may be an air pump or a water pump, in order to avoid safety accidents caused by the iron chips being blown out by high-speed airflow, the embodiment takes the water pump as an example, the nozzle 2 sprays the water pumped by the water pump into a blind hole, the iron fillings of rivers scouring blind hole and roll up out the iron fillings under the effect of gravity, owing to adopt the water pump not need great injection pressure can roll up out the iron fillings, avoided splashing of iron fillings, it is safer.

The blind hole machining device is characterized in that a clamping component is arranged, a driving component is connected with the clamping component, the driving component drives the clamping component to drive a workpiece 1 to rotate around the axis of the workpiece 1, a spray head 2 is arranged below the workpiece 1 and communicated with a power source, the spray head 2 is arranged on an adjusting component, and the adjusting component drives the spray head 2 to move along the axial direction of the workpiece 1 so as to align with a machined blind hole; this embodiment uses the balance shaft as an example, during the use, centre gripping unit centre gripping work piece 1 drives work piece 1 and revolves round self axis under drive assembly's drive, it is vertical downwards to revolve until work piece 1's processing hole, shower nozzle 2 moves to aiming at the processing hole under the drive of adjusting part this moment, the water pump is with rivers pump income to shower nozzle 2 department and then with the iron fillings roll-out in the blind hole, consequently, adopt above-mentioned scheme, the iron fillings of having solved iron fillings and easily remaining in the blind hole inside problem, convenient thorough is got rid of to the iron fillings in the blind hole.

As shown in fig. 1, 2 and 4, the embodiment of the present invention provides a special fixture for a balance shaft drilling machine, further comprising a base 3, two clamping assemblies are provided and located at two ends of a workpiece 1, each clamping assembly comprises an outer ring 4 and an inner ring 5, the outer ring 4 is fixedly connected to the base 3, the inner ring 5 is rotatably connected to the outer ring 4, specifically, the outer ring 4 is provided with a cavity, a plurality of rollers 18 parallel to an axis of the workpiece 1 are uniformly and rotatably connected to the outer ring 4, in this embodiment, three rollers 18 are taken as an example, an outer surface of each roller 18 is in rolling contact with an outer surface of the inner ring, it should be understood that, in order to prevent axial play between the inner ring 5 and the outer ring 4, in practice, a limiting structure may be provided to limit two end surfaces of the inner ring 5, for example, limiting blocks may be detachably connected to two end surfaces of the outer ring 4, each limiting block is respectively abutted against two end faces of the inner ring body 5; a plurality of clamping modules for clamping the workpiece 1 are arranged in the inner ring body 5; by adopting the scheme, the workpiece 1 is stably supported by the two clamping assemblies, the coaxiality of the clamping assemblies and the workpiece 1 is higher, the rotating motion of the workpiece 1 is more accurate, and the distance between the workpiece 1 and the spray head 2 can be ensured to be consistent; of course, the clamping assembly may also be a conventional three-jaw chuck, the chuck may clamp one end of the workpiece 1 and drive the workpiece to rotate, or may also clamp the workpiece 1 and drive the workpiece to rotate by using a conventional thimble and tailstock method, and the detailed structure thereof is not described herein again.

As shown in fig. 2, 4 and 5, an embodiment of the present invention provides a special fixture for a balance shaft drilling machine, each clamping module includes a body 6, one end of the body 6 is elastically connected to an inner ring 5 through an elastic member, in order to ensure that each body 6 can perform good clamping on a workpiece 1, the other end of the body 6 is matched with an outer surface of the workpiece 1; one end of the body 6 is elastically connected with the inner ring body 5 through an elastic piece so as to adapt to clamping workpieces 1 with different sizes, and the universality of the device is improved.

As shown in fig. 4 and 5, an embodiment of the present invention provides a special fixture for a balance shaft drilling machine, wherein a through hole is provided on an inner ring body 5, the body 6 includes a head portion and a rod portion which are fixedly connected, one end of the rod portion, which is away from the head portion, penetrates through the through hole, and is connected with a first nut 7 which is coaxial with the through hole in a threaded manner, the diameter of the first nut 7 is larger than that of the through hole, an elastic member includes a spring 8, the spring 8 is sleeved on the rod portion, and two ends of the spring 8 respectively abut against the head portion and an inner side wall of the inner ring body 5, in practice, a groove can be processed on the inner wall of the inner ring body 5 to facilitate the end surface of the spring 8 to abut against the inner side wall, and a sinking table should be processed on the outer wall of the inner ring body 5 to enable the top end of the rod portion and the first nut 7 to be located in the sinking table to avoid movement interference caused by the rolling of the roller 18; by adopting the scheme, the spring 8 drives the body 6 to slide along the axial direction and tightly press the outer surface of the workpiece 1, the self-adaptive clamping force between the body 6 and the workpiece 1 can be conveniently adjusted by adopting the spring 8 as the driving force, and the body 6 can be prevented from sliding out of the through hole by the first nut 7.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a special fixture for a balance shaft drilling machine, where the driving assembly includes a gear ring 9, a rack 10, and an electric push rod (not shown in the drawings), the gear ring 9 is fixedly connected to any end surface of the inner ring 5 and is coaxial with the same, the rack 10 is slidably connected to the base 3 and is engaged with the gear ring 9, the electric push rod is connected to the rack 10 to drive the rack to slide, and of course, a gear connected to the gear ring 9 and engaged with the gear ring 9 may also be rotatably connected to the base 3, and the gear is connected to a motor (not shown in the drawings) to drive the motor to rotate; by adopting the scheme, the electric push rod drives the rack 10 to slide, namely the inner ring body 5 can be driven to rotate through the gear ring 9, and the action is convenient and reliable.

As shown in fig. 1 and fig. 3, an embodiment of the present invention provides a special fixture for a balance shaft drilling machine, where an adjusting assembly includes a screw rod 11, a guide rod 12, and a hand wheel 13, the screw rod 11 is rotatably connected to a base 3 along an axial direction of a workpiece 1, the screw rod 11 is threadedly connected to a second nut 14 coaxial with the screw rod 11, the guide rod 12 is fixedly connected to the base 3 along the axial direction of the workpiece 1 and penetrates through the second nut 14, a nozzle 2 is mounted on the second nut 14, and the hand wheel 13 is fixedly connected to any end of the screw rod 11; adopt above-mentioned scheme, operating personnel rotates hand wheel 13 and can drive second nut 14 and drive shower nozzle 2 along work piece 1's axial motion in order to its processing hole, convenient operation, and 2 spun rivers of shower nozzle can wash screw rod 11, avoid iron fillings to glue and cover on screw rod 11.

As shown in fig. 1 and 3, in order to conveniently collect punched scrap iron, the base 3 is provided with the collecting plate 15, two sides of the collecting plate 15 are bent upwards to form the material storage cavity, two ends of the collecting plate 15 are fixedly connected to the base 3, the discharging channel 16 is arranged between the two ends of the collecting plate 15, specifically, the base 3 comprises a rectangular frame, two ends of the collecting plate 15 are welded to two inner side walls of the rectangular frame, and a gap is ensured to be left between the collecting plate 15 and the rectangular frame to form the discharging channel 16.

As shown in fig. 1 and 2, an embodiment of the utility model provides a special fixture for a balance shaft drilling machine, a scraper 17 matched with a material storage cavity is fixedly connected to the bottom end of a second nut 14, and an operator can drive the scraper 17 to move along with a screw 11 by rotating a hand wheel 13, so that scrap iron and water flow are scraped to a discharge channel 16 and discharged.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a balanced axle drilling machine special fixture which characterized in that: including centre gripping subassembly, drive assembly and chip removal unit, the centre gripping subassembly is used for centre gripping work piece (1), drive assembly with the centre gripping subassembly links to each other and is used for driving work piece (1) around self axis rotation, chip removal unit includes shower nozzle (2) and adjusting part, adjusting part is used for the installation shower nozzle (2) and its drive axial displacement of work piece (1) is followed in shower nozzle (2), shower nozzle (2) are located the below of work piece (1) and its intercommunication has the power supply.

2. The special clamp for the balance shaft drilling machine as claimed in claim 1, wherein: the clamping device is characterized by further comprising a base (3), the number of the clamping components is two, the clamping components are located at two ends of the workpiece (1), each clamping component comprises an outer ring body (4) and an inner ring body (5), the outer ring body (4) is fixedly connected onto the base (3), the inner ring body (5) is rotatably connected into the outer ring body (4), and a plurality of clamping modules used for clamping the workpiece (1) are arranged in the inner ring body (5).

3. The special clamp for the balance shaft drilling machine as claimed in claim 2, wherein: each clamping module comprises a body (6), one end of the body (6) is elastically connected with the inner ring body (5) through an elastic piece, and the other end of the body (6) is matched with the outer surface of the workpiece (1).

4. The special clamp for the balance shaft drilling machine as claimed in claim 3, wherein: be equipped with the through-hole on interior ring member (5), body (6) are including fixed connection's head and pole portion, pole portion deviates from the one end of head is worn out through-hole and threaded connection have coaxial first nut (7) with it on it, the diameter of first nut (7) is greater than the diameter of through-hole, the elastic component includes spring (8), spring (8) cover is located on the pole portion and its both ends support respectively and lean on the head with on the inside wall of interior ring member (5).

5. The special clamp for the balance shaft drilling machine according to any one of claims 2 to 4, wherein: the driving assembly comprises a gear ring (9), a rack (10) and an electric push rod, the gear ring (9) is fixedly connected to any end face of the inner ring body (5) and the gear ring and the inner ring body are coaxial, the rack (10) is connected to the base (3) in a sliding mode and meshed with the gear ring (9), and the electric push rod is connected with the rack (10) and used for driving the rack (10) to slide.

6. The special clamp for the balance shaft drilling machine as claimed in claim 5, wherein: the adjusting part comprises a screw rod (11), a guide rod (12) and a hand wheel (13), the screw rod (11) is connected to the base (3) in a rotating mode along the axial direction of the workpiece (1), the screw rod (11) is connected with a second nut (14) which is coaxial with the screw rod, the guide rod (12) is connected to the base (3) in an axial direction and penetrates through the second nut (14), the spray head (2) is installed on the second nut (14), and the hand wheel (13) is fixedly connected to any one end of the screw rod (11).

7. The special clamp for the balance shaft drilling machine as claimed in claim 6, wherein: install collecting plate (15) on base (3), the both sides of collecting plate (15) are upwards buckled and are formed the storage cavity, the both ends fixed connection of collecting plate (15) in base (3) are gone up and are equipped with discharge passage (16) between the two.

8. The special clamp for the balance shaft drilling machine as claimed in claim 7, wherein: the bottom end of the second nut (14) is fixedly connected with a scraper (17) matched with the material storage cavity.