CN214559089U

CN214559089U - Clamp for machining flywheel shell of engine

Info

Publication number: CN214559089U
Application number: CN202120675745.3U
Authority: CN
Inventors: 姜懿
Original assignee: Xiangyang Siruifu Machinery Co ltd
Current assignee: Xiangyang Siruifu Machinery Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-02
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a clamp for processing an engine flywheel shell, which belongs to the technical field of processing of engine flywheel shells and comprises a leg frame, a first driving box, a second driving box and a chuck, wherein the first driving box, the second driving box and the chuck are arranged at the top of the leg frame; when the device clamps the flywheel shell of the engine, the distance between the edge of the chuck and the center line of the second driving gear is enlarged, and the chuck is contacted with the inner diameter of a crankshaft flange hole in the enlarging process so as to fix the flywheel shell of the engine; because the structure in the outside of bell housing is unsmooth, this device still drives the stopper through expanding spring and cushions the clamping process to make the device can fix most engine bell housings, effectively improve the fixed effect of device.

Description

Clamp for machining flywheel shell of engine

Technical Field

The utility model relates to an engine flywheel shell processing technology field specifically is an anchor clamps for engine flywheel shell processing.

Background

The flywheel shell is one of the parts of the engine, the engine flywheel shell is positioned between the engine body and the gearbox, the engine flywheel shell is arranged outside the engine flywheel and fixedly connected with the engine body and the gearbox, and the flywheel shell is used for covering the flywheel through a flywheel cavity to play a role in safety protection.

The existing flywheel housing has poor toughness and low fatigue resistance. Moreover, the shape of the flywheel housing is irregular, the surface of the outer side is uneven, and in the process of milling and punching, the traditional method generally adopts manual clamping, so that the operation is complex, the surface of the flywheel housing is easily damaged, the processing efficiency is influenced, and even the overall processing quality of the flywheel housing is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anchor clamps for engine flywheel shell processing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an anchor clamps for engine flywheel shell processing, includes leg and sets up first drive case, second drive case and the chuck at the leg top, the top of leg is equipped with first drive case and second drive case, first drive case and second drive case are the stack from top to bottom and place, and first drive case is located the bottom of second drive case, the top of second drive case links to each other with the chuck, second drive case includes second drive gear, transmission shaft and second shell, the inside central point of second shell puts swivelling joint and has second drive gear, the outside of second drive gear evenly is equipped with six drive gear, intermeshing between drive gear and the second drive gear, drive gear's central point puts and links to each other with the transmission shaft through the mode of key-type connection, and forms between transmission shaft and the second shell and rotate and be connected, the tip of transmission shaft passes the second shell and links to each other with the chuck, the chuck is equipped with six, and uses the central line of second drive gear as center evenly distributed, and the chuck is drop shape cam structure, and when the chuck rotated along with drive gear, the outside and the central distance of chuck increased gradually.

As a further aspect of the present invention: first drive case includes first drive gear, driving rack, first shell, spout and expanding spring, the central point of first shell puts swivelling joint and has first drive gear, and first drive gear's the outside evenly is equipped with three driving rack, driving rack and first drive gear intermeshing, and driving rack and the inside spout of first shell form sliding connection, the tip of driving rack passes through expanding spring and links to each other with the slider, slider and spout inner wall form sliding connection, the top of slider is equipped with the stopper, and the width of stopper is greater than the width of spout.

As a further aspect of the present invention: the first driving gear and the second driving gear are coaxially arranged, and the rotation center is connected with the driving shaft in a key connection mode.

As a further aspect of the present invention: the end of the driving shaft passes through the first shell and is connected with an output shaft of a driving motor, and the driving motor is installed on the first shell.

As a further aspect of the present invention: the bottom of the leg frame is connected with the base and is fixed on the ground through the base.

Compared with the prior art, the beneficial effects of the utility model are that:

when the device clamps the flywheel shell of the engine, the driving motor drives the chuck at the top to gradually expand outwards through the transmission of the internal mechanism of the second driving box, so that the distance between the edge of the chuck and the central line of the second driving gear is further expanded, and the chuck is in mutual contact with the inner diameter of a flange hole of a crankshaft in the expansion process, so that the flywheel shell of the engine is fixed; because the structure in the outside of bell housing is unsmooth, this device still drives the stopper through expanding spring and cushions the clamping process to make the device can fix most engine bell housings, effectively improve the fixed effect of device.

Drawings

FIG. 1 is a schematic sectional structure view A-A of FIG. 3 of a fixture for machining an engine flywheel housing.

FIG. 2 is a schematic structural diagram of a chuck in the fixture for machining the flywheel housing of the engine.

FIG. 3 is a schematic structural diagram of a second driving box in the fixture for machining the flywheel housing of the engine.

FIG. 4 is a schematic structural diagram of a first driving box in the fixture for machining the flywheel housing of the engine.

FIG. 5 is a partial structural view of a first driving box in the fixture for machining the flywheel housing of the engine.

In the figure: 1-base, 2-leg frame, 3-first driving box, 31-first driving gear, 32-driving rack, 33-first shell, 34-chute, 35-expansion spring, 36-sliding block, 37-limiting block, 4-second driving box, 41-second driving gear, 42-transmission gear, 43-transmission shaft, 44-second shell, 5-chuck, 6-driving shaft and 7-driving motor.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Referring to fig. 1 to 3, in an embodiment of the present invention, a fixture for machining a flywheel housing of an engine includes a leg frame 2, and a first driving box 3, a second driving box 4 and a chuck 5 disposed at a top portion of the leg frame 2, the top portion of the leg frame 2 is provided with the first driving box 3 and the second driving box 4, the first driving box 3 and the second driving box 4 are stacked up and down, the first driving box 3 is disposed at a bottom portion of the second driving box 4, a top portion of the second driving box 4 is connected to the chuck 5, the second driving box 4 includes a second driving gear 41, a transmission gear 42, a transmission shaft 43 and a second housing 44, the second driving gear 41 is rotatably connected to an inner center of the second housing 44, six transmission gears 42 are uniformly disposed outside the second driving gear 41, the transmission gear 42 and the second driving gear 41 are engaged with each other, the central point of drive gear 42 puts the mode that passes through the key-type connection and links to each other with transmission shaft 43, and forms between transmission shaft 43 and the second shell 44 and rotate and be connected, the tip of transmission shaft 43 passes second shell 44 and links to each other with chuck 5, chuck 5 is equipped with six, and uses the central line of second drive gear 41 as center evenly distributed, and chuck 5 is drop-shaped cam structure, and when chuck 5 rotated along with drive gear 42, the outside and the central distance of chuck 5 increased gradually.

In this embodiment, before the device is put into use, firstly, the chuck 5 at the top and the limiting block 37 at the outer side of the first driving box 3 are adjusted, so that the chuck 5 keeps a contraction state, the limiting block 37 and the transmission rack 32 keep an extension state, when the device is used for clamping an engine flywheel housing, the crankshaft flange hole of the flywheel housing is sleeved at the outer side of the chuck 5, the driving motor 7 drives the second driving gear 41 to synchronously rotate, so that the six transmission gears 42 meshed at the outer side are driven to synchronously rotate, the synchronous rotation in the same direction of the transmission gears 42 can drive the chuck 5 at the top to gradually expand outwards, so that the distance between the edge of the chuck 5 and the center line of the second driving gear 41 is further expanded, and the chuck is mutually contacted with the inner diameter of the crankshaft flange hole in the expansion process, so as to fix the engine flywheel housing.

Please refer to fig. 1 to 5, as a preferred embodiment of the present invention, the first driving box 3 includes a first driving gear 31, a driving rack 32, a first housing 33, a sliding slot 34 and a telescopic spring 35, the center of the first housing 33 is rotatably connected to the first driving gear 31, three driving racks 32 are uniformly disposed on the outer side of the first driving gear 31, the driving racks 32 are engaged with the first driving gear 31, the driving racks 32 and the sliding slot 34 inside the first housing 33 form a sliding connection, the end of the driving racks 32 is connected to a sliding block 36 through the telescopic spring 35, the sliding block 36 and the inner wall of the sliding slot 34 form a sliding connection, a limiting block 37 is disposed on the top of the sliding block 36, and the width of the limiting block 37 is greater than the width of the sliding slot 34.

In the embodiment, when the flywheel housing of the engine is internally clamped by the chuck 5 at the top of the first driving box 3, the first driving box 3 at the bottom synchronously drives the limiting block 37 to clamp the edge of the flywheel housing; the concrete conditions do, drive shaft 6 turns into the linear motion of driving rack 32 through the rack and pinion structure that first drive gear 31 and driving rack 32 are constituteed, the stopper 37 that drives the tip contacts the flywheel shell body from the outside of engine flywheel shell, because the outside structure unevenness of flywheel shell, this device still drives stopper 37 through expanding spring 35 and cushions the clamping process, thereby make the device can fix most engine flywheel shells, effectively improve the fixed effect of device.

Referring to fig. 1, as another preferred embodiment of the present invention, the first driving gear 31 and the second driving gear 41 are coaxially disposed, and the rotation center is connected to the driving shaft 6 by a key connection.

In the embodiment, the driving shaft 6 performs synchronous transmission on the first driving gear 31 and the second driving gear 41 in a key connection mode, and shares one driving source, so that the manufacturing cost is reduced, and the energy consumption can be effectively reduced.

Referring to fig. 1, as another preferred embodiment of the present invention, the end of the driving shaft 6 is connected to the output shaft of the driving motor 7 through a first housing 33, and the driving motor 7 is mounted on the first housing 33.

In this embodiment, the drive motor 7 is used to power the device.

Referring to fig. 1, as another preferred embodiment of the present invention, the bottom of the leg frame 2 is connected to the base 1 and is fixed on the ground through the base 1.

In the present embodiment, the base 1 is used for fixing the apparatus.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides a anchor clamps for engine flywheel shell processing, includes leg (2) and sets up first drive case (3), second drive case (4) and chuck (5) at leg (2) top, its characterized in that, the top of leg (2) is equipped with first drive case (3) and second drive case (4), first drive case (3) and second drive case (4) are the upper and lower stack and are placed, and first drive case (3) are located the bottom of second drive case (4), the top of second drive case (4) links to each other with chuck (5), second drive case (4) include second drive gear (41), drive gear (42), transmission shaft (43) and second shell (44), the inside central point of second shell (44) puts swivelling joint and has second drive gear (41), the outside of second drive gear (41) evenly is equipped with six drive gear (42), intermeshing between drive gear (42) and second drive gear (41), the central point of drive gear (42) puts the mode through the key-type and links to each other with transmission shaft (43), and forms between transmission shaft (43) and second shell (44) to rotate and be connected, the tip of transmission shaft (43) passes second shell (44) and links to each other with chuck (5), chuck (5) are equipped with six, and use the central line of second drive gear (41) as center evenly distributed, and chuck (5) are water droplet form cam structure, when chuck (5) rotate along with drive gear (42), the outside and the central distance of chuck (5) increase gradually.

2. The clamp for machining the flywheel housing of the engine according to claim 1, wherein the first driving box (3) comprises a first driving gear (31), a driving rack (32), a first housing (33), a sliding groove (34) and a telescopic spring (35), the first driving gear (31) is rotatably connected to the center of the first housing (33), three driving racks (32) are uniformly arranged on the outer side of the first driving gear (31), the driving racks (32) are meshed with the first driving gear (31), the driving racks (32) are in sliding connection with the sliding groove (34) inside the first housing (33), the end portions of the driving racks (32) are connected with a sliding block (36) through the telescopic spring (35), the sliding block (36) is in sliding connection with the inner wall of the sliding groove (34), and a limit block (37) is arranged at the top of the sliding block (36), the width of the limiting block (37) is larger than that of the sliding groove (34).

3. The jig for machining the engine flywheel housing as defined in claim 2, wherein the first driving gear (31) and the second driving gear (41) are coaxially arranged and are connected with the driving shaft (6) at the rotation center through a key connection mode.

4. The jig for machining an engine flywheel housing according to claim 3, characterized in that the end of the driving shaft (6) passes through the first housing (33) to be connected with the output shaft of the driving motor (7), and the driving motor (7) is mounted on the first housing (33).

5. The clamp for machining the flywheel housing of the engine as recited in claim 4, characterized in that the bottom of the leg (2) is connected with the base (1) and is fixed on the ground through the base (1).