CN215318015U

CN215318015U - A mounting fixture for bent axle processing of polishing usefulness

Info

Publication number: CN215318015U
Application number: CN202121157353.4U
Authority: CN
Inventors: 甘俊
Original assignee: Neijiang Yutian Machinery Manufacturing Co ltd
Current assignee: Neijiang Yutian Machinery Manufacturing Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-12-28
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a fixing clamp for crankshaft grinding, which comprises a workbench, wherein a movable groove is formed in the workbench, a screw rod is arranged in the movable groove in a rotating mode, an internal threaded pipe is connected to the screw rod in a threaded mode, a supporting plate is arranged at one end of the internal threaded pipe, a movable opening is formed in one end of the movable groove, a clamping pipe is arranged at one end, penetrating out of the movable opening, of the supporting plate in a rotating mode, a spring is arranged on the inner wall of one side of the clamping pipe, a jacking plate is arranged at the other end of the spring, a threaded hole is formed in one end of the clamping pipe, a bolt is connected to the threaded hole in a threaded mode, a limiting mechanism is arranged on the other side of the clamping pipe and comprises a fluted disc, and a crank is arranged on one side of the fluted disc. Through anticlockwise rotation limit screw, make limit screw break away from the fluted disc, then rotate the crank and drive the double-layered pipe and rotate, accomplish the regulation to the bent axle angle of polishing, clockwise rotation limit screw makes limit screw support the fluted disc and carries on spacingly, and the bent axle takes place to rotate when preventing to polish.

Description

A mounting fixture for bent axle processing of polishing usefulness

Technical Field

The utility model belongs to the technical field of crankshaft grinding, and particularly relates to a fixing clamp for crankshaft grinding.

Background

The crankshaft is one of five core parts for ensuring the external output characteristic of a multi-cylinder internal combustion engine, and the main geometric precision parameters of the crankshaft comprise the coaxiality of the rotation center of the crankshaft, the coaxiality of journals of connecting rods in the same phase, the jumping of journals of connecting rods in different phases relative to the rotation center, the circumferential phase difference of the journals of connecting rods in different phases relative to the rotation center and the like. The crankshaft, cylinder, connecting rod and piston constitute a crank-slide mechanism to convert the gas pressure formed by internal combustion into rotary power for output.

When the crankshaft is machined, the crankshaft is often required to be polished, and when the crankshaft is polished, an operator fixes the crankshaft by using a fixing clamp for crankshaft polishing machining.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixing clamp for crankshaft polishing, which aims to solve the problem that the polishing angle of a crankshaft is inconvenient to adjust in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a mounting fixture for bent axle processing of polishing usefulness, comprises a workbench, be equipped with the activity groove on the workstation, the activity inslot internal rotation is provided with the screw rod, threaded connection has the internal thread pipe on the screw rod, the one end of internal thread pipe is provided with the backup pad, the one end in activity groove is equipped with the expansion mouth, the one end that the expansion mouth was worn out to the backup pad is rotated and is provided with double-layered pipe, be provided with the spring on the inner wall of one side of double-layered pipe, the other end of spring is provided with the roof pressure board, the one end of double-layered pipe is equipped with the screw hole, screw hole female connection has the bolt, the opposite side of double-layered pipe is provided with stop gear, stop gear includes the fluted disc, one side of fluted disc is provided with the crank.

Preferably, the limiting mechanism comprises a limiting plate arranged on one side of the supporting plate, a screw hole is formed in the limiting plate, a limiting screw rod is connected to the screw hole in an internal thread mode, and one end of the limiting screw rod is abutted to the fluted disc.

Preferably, a fixing plate is arranged on the other side of the upper end face of the workbench, a clamping groove is formed in the fixing plate, and a protection pad is arranged in the clamping groove.

Preferably, one side of the movable groove is provided with a first stepped hole, a first bearing is arranged in the first stepped hole, and one end of the screw rod penetrating through the inner ring of the first bearing is provided with a knob.

Preferably, a second stepped hole is formed in the supporting plate, a second bearing is arranged in the second stepped hole, and one end of the clamping pipe is inserted into an inner ring of the second bearing.

Preferably, supporting legs are arranged on two sides of the lower end face of the workbench.

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

1. when the grinding angle needs to be adjusted, the limiting screw rod is rotated anticlockwise to be separated from the fluted disc, then the crank handle is rotated to drive the clamping pipe to rotate, so that the grinding angle of the crankshaft is adjusted, and the limiting screw rod is rotated clockwise to abut against the fluted disc to limit, so that the crankshaft is prevented from rotating during grinding.

2. According to the utility model, one end of the crankshaft is inserted into the clamping groove, then the screw rod is driven to rotate by rotating the knob, the internal threaded pipe is enabled to horizontally move on the screw rod, the supporting plate is driven to slide to a proper position in the movable opening, the other end of the crankshaft is inserted into the clamping pipe, the jacking plate is pushed to extrude the spring to deform, then the bolt is rotated clockwise, one end of the bolt screwed out of the threaded hole is enabled to be abutted against the crankshaft, the fixing operation of the crankshaft is completed, the operation is convenient, and the fixing is more stable.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a front cut-away schematic view of FIG. 1;

FIG. 3 is an enlarged view of a portion a of FIG. 2;

fig. 4 is an enlarged schematic view of fig. 2 at b.

In the figure: 1 workstation, 2 activity grooves, 3 screw rods, 4 internal thread pipes, 5 backup pads, 6 movable mouths, 7 clamp pipes, 8 springs, 9 roof pressure boards, 10 screw holes, 11 bolts, 12 fluted disc, 13 crank, 14 limiting plates, 15 screw holes, 16 stop screw, 17 fixed plate, 18 clamp grooves, 19 protection pads, 20 first shoulder holes, 21 first bearing, 22 knob, 23 second shoulder holes, 24 second bearing, 25 supporting legs.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

FIG. 1, FIG. 2, FIG. 3 and FIG. 4, a fixing clamp for crankshaft grinding, comprising a workbench 1, a movable groove 2 is arranged on the workbench 1, a screw rod 3 is rotatably arranged in the movable groove 2, an internal threaded tube 4 is in threaded connection with the screw rod 3, a supporting plate 5 is welded at the top end of the internal threaded tube 4, a movable opening 6 is arranged at the top end of the movable groove 2, a clamping tube 7 is rotatably arranged at one end of the supporting plate 5 penetrating out of the movable opening 6, a spring 8 is welded on the inner wall of the right side of the clamping tube 7, a jacking plate 9 is welded at the other end of the spring 8, a threaded hole 10 is arranged at the top end of the clamping tube 7, a bolt 11 is in threaded connection with the threaded hole 10, a limiting mechanism is welded at the right side of the clamping tube 7, the limiting mechanism comprises a fluted disc 12, a crank 13 is welded at the right side of the fluted disc 12, the limiting mechanism comprises a limiting plate 14 welded at the right side of the supporting plate 5, a screw hole 15 is arranged on the limiting plate 14, and a limiting screw hole 16 is in threaded connection with the limiting screw rod 15, the bottom end of the limit screw 16 is abutted against the fluted disc 12.

Fig. 1, fig. 2, fig. 3 and fig. 4, the welding of the up end left side of workstation 1 has fixed plate 17, be equipped with on the fixed plate 17 and press from both sides groove 18, it has protection pad 19 to use sealed glue bonding connection in the clamp groove 18, protection pad 19 is soft silica gel material, the right side of activity groove 2 is equipped with first shoulder hole 20, the interference is connected with first bearing 21 in the first shoulder hole 20, the one end welding that first bearing 21 inner circle was worn out to screw rod 3 has knob 22, be equipped with second shoulder hole 23 in the backup pad 5, the interference is connected with second bearing 24 in the second shoulder hole 23, the inner circle of second bearing 24 is connected to the one end interference of pressing from both sides pipe 7, the welding of the lower terminal surface left and right sides of workstation 1 has supporting leg 25.

The working principle of the embodiment is as follows: when needing the adjustment angle of polishing, through anticlockwise rotation stop screw 16, make stop screw 16 break away from fluted disc 12, then rotate crank 13 and drive double-layered pipe 7 and rotate, accomplish the regulation to the bent axle angle of polishing, clockwise rotation stop screw 16 makes stop screw 16 support fluted disc 12 and carry out spacingly, and the bent axle takes place to rotate when preventing to polish. Insert the clip groove 18 with bent axle one end earlier, then drive screw rod 3 through rotatory knob 22 and rotate, make internal thread pipe 4 horizontal migration on screw rod 3, drive backup pad 5 and slide to suitable position in expansion mouth 6, insert the other end of bent axle in the clip pipe 7, and promote roof pressure board 9 extrusion spring 8 and warp, then clockwise rotation bolt 11, the one end that makes bolt 11 screw hole 10 revolve out supports on the bent axle, the fixed operation to the bent axle is accomplished, and convenient for operation, it is fixed more stable.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. The utility model provides a mounting fixture for bent axle processing of polishing usefulness which characterized in that: comprises a workbench (1), a movable groove (2) is arranged on the workbench (1), a screw rod (3) is rotationally arranged in the movable groove (2), an internal thread pipe (4) is connected to the screw rod (3) in a threaded manner, one end of the internal thread pipe (4) is provided with a supporting plate (5), one end of the movable groove (2) is provided with a movable opening (6), a clamping pipe (7) is rotatably arranged at one end of the supporting plate (5) which penetrates out of the movable opening (6), a spring (8) is arranged on the inner wall of one side of the clamping pipe (7), a top pressure plate (9) is arranged at the other end of the spring (8), one end of the clamping pipe (7) is provided with a threaded hole (10), a bolt (11) is connected with the threaded hole (10) in an internal thread manner, the other side of clamp pipe (7) is provided with stop gear, stop gear includes fluted disc (12), one side of fluted disc (12) is provided with crank (13).

2. The fixing jig for crank shaft grinding according to claim 1, characterized in that: the limiting mechanism comprises a limiting plate (14) arranged on one side of the supporting plate (5), a screw hole (15) is formed in the limiting plate (14), a limiting screw rod (16) is connected to the screw hole (15) in an internal thread mode, and one end of the limiting screw rod (16) is abutted to the fluted disc (12).

3. The fixing jig for crank shaft grinding according to claim 1, characterized in that: the other side of the upper end face of the workbench (1) is provided with a fixing plate (17), a clamping groove (18) is formed in the fixing plate (17), and a protection pad (19) is arranged in the clamping groove (18).

4. The fixing jig for crank shaft grinding according to claim 1, characterized in that: one side of the movable groove (2) is provided with a first stepped hole (20), a first bearing (21) is arranged in the first stepped hole (20), and a knob (22) is arranged at one end, penetrating out of the inner ring of the first bearing (21), of the screw rod (3).

5. The fixing jig for crank shaft grinding according to claim 1, characterized in that: the supporting plate (5) is provided with a second stepped hole (23), a second bearing (24) is arranged in the second stepped hole (23), and one end of the clamping pipe (7) is inserted into an inner ring of the second bearing (24).

6. The fixing jig for crank shaft grinding processing according to claim 3, characterized in that: and supporting legs (25) are arranged on two sides of the lower end face of the workbench (1).