CN201077003Y

CN201077003Y - 180 degree auto indexing means for crankshaft link-rod neck grinding

Info

Publication number: CN201077003Y
Application number: CNU2007200642761U
Authority: CN
Inventors: 彭克立; 黄险峰; 张麟捷
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2007-08-24
Filing date: 2007-08-24
Publication date: 2008-06-25
Anticipated expiration: 2017-08-24

Abstract

The utility model discloses an automatic indexer unit of 180 degrees for grinding of the connecting rod journal of the crank shaft, which is characterized in that a gear shaft (7) is arranged on a fixture body (4) via a rotary support; an indexing disc (10) is arranged on the gear shaft (7); an indexing positioning stop block (9) and an adjusting pad (12) corresponding to the indexing disc (10) are arranged on the two sides of the fixture body (4); an oil cylinder (13) and a piston (3) are arranged in the fixture body (4); and a rack (2) meshed with the gear shaft (7) is arranged on the piston (3). The utility model has the advantages that structure is simple; only a simple hydraulic control loop with low pressure is needed to control the automatic indexing action; the indexer unit can be conveniently connected with a numerical control system; automatic indexing during grinding of the connecting rod journal of the crank shaft is realized; and indexing accuracy is regulated via the mechanical stop block with convenient regulation, stability, reliability and good retentivity.

Description

A kind of crank-shaft link neck grinding 180 degree automatic dividing attachments

Technical field

The utility model relates to a kind of indexing means, particularly relates to a kind of crank-shaft link neck grinding 180 degree automatic dividing attachments.

Background technology

Bent axle is made up of trunnion and connecting rod neck, and the connecting rod neck is decentered distribution at a certain angle usually, and to twin-tub and four cylinder crankshafts, the connecting rod neck is to distribute with 180 degree.The tradition crankshaft grinding machine is the branch two procedures when grinding connecting rod neck, a kind of is directly processing respectively on two lathes, another kind is processing at twice on a machine tool, calibration need manually be carried out in the centre, influence grinding efficiency, indexing accuracy and stability are difficult to all guarantee that external design has hydraulic pressure and servo automatic indexing anchor clamps, can realize High Precision Automatic calibration, but cost an arm and a leg.

The utility model content

Technical problem to be solved in the utility model provides a kind of crank-shaft link neck grinding 180 simple in structure, that precision is high, reliable and stable and spends automatic dividing attachments.

In order to solve the problems of the technologies described above, the crank-shaft link neck grinding 180 degree automatic dividing attachments that the utility model adopts, comprise clamp body and index dial, be provided with gear shaft by rotary support on the described clamp body, described index dial is installed on the described gear shaft, calibration position block and the adjusting pad 12 corresponding with described index dial are housed in the both sides of described clamp body, be provided with oil cylinder and piston thereof in the described clamp body, described piston is provided with the tooth bar with described gear shaft 7 engaged transmission.

Described rotary support is a bearing.

Adopt the crank-shaft link neck grinding 180 degree automatic dividing attachments of technique scheme, the structural principle of utilization gear, tooth bar, piston is move left and right under hydraulic-driven, tooth bar is installed on the piston, the gear shaft rotation, and running accuracy is kept by rotary support, index dial and gear shaft rotate simultaneously, in the both sides of clamp body the calibration position block is housed, thereby realizes 180 degree left and right sides calibration, indexing accuracy is regulated by adjusting pad.

The utlity model has following characteristics:

The precision height: the installation site of this device middle gear and rack sleeve can directly be ensured that angle can be by the buting iron adjustment by machining, indexing accuracy can reach ± 5 ' in.

Reliable and stable: this device is the separate machine structure, and middle transmission link is few, does not rely on other external signals, not influenced by other actions, can connect data signal after calibration puts in place as detection.

In sum, the utility model is that automatic dividing attachments are spent in a kind of crank-shaft link neck grinding 180 simple in structure, that precision is high, reliable and stable.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is the utility model structural representation;

Fig. 2 is along A-A line cutaway view among Fig. 1;

Fig. 3 is along B-B line cutaway view among Fig. 1.

The specific embodiment

Referring to Fig. 1, Fig. 2 and Fig. 3, be provided with gear shaft 7 by bearing 6 on the clamp body 4, index dial 10 is installed on the gear shaft 7 by locking nut 8 and key 11, calibration position block 9 and the adjusting pad 12 corresponding with index dial 10 are housed in the both sides of clamp body 4, be provided with oil cylinder 13 and piston 3 thereof in the clamp body 4, be provided with oil cylinder gland 1 and hydraulic oil pipe 14 at the two ends of oil cylinder 13, piston 3 is between oil cylinder 13 interior two oil cylinder glands 1, and piston 3 is provided with the tooth bar 2 with gear shaft 7 engaged transmission.

Referring to Fig. 1, Fig. 2 and Fig. 3, the structural principle of the utility model utilization gear, tooth bar, hydraulic oil is by hydraulic oil pipe 14 driven plunger 3 move left and right in oil cylinder 13 on the oil cylinder gland 1, tooth bar 2 is installed on the piston 3, gear shaft 7 rotations, and running accuracy is kept by bearing 6, index dial 10 rotates with gear shaft 7 simultaneously by locking nut 8 and key 11, in the both sides of clamp body 4 calibration position block 9 is housed, thereby realizes 180 degree left and right sides calibration, indexing accuracy is regulated by adjusting pad 12.

This apparatus structure is simple, only needs the simple low pressure hydraulic control loop just can control automatic indexing action.Can be connected with digital control system easily, automatic indexing when being implemented in the crank-shaft link neck grinding, indexing accuracy is to regulate by electromechanical stop, and is easy to adjust, and precision stability is good.

This device is applicable to the full-automatic grinding of two cylinder series and four cylinder Series Crankshaft connecting rod necks, can be widely used in the numerical-control crankshaft connecting rod neck grinding machine of these two series.

This device solves this bottleneck difficult problem of numerical-control crankshaft connecting rod neck grinding machine automatic indexing, improved Machinery Tool Automation control degree, promoted overall grade of lathe and value.

Claims

1. automatic dividing attachments are spent in a crank-shaft link neck grinding 180, comprise clamp body (4) and index dial (10), it is characterized in that: described clamp body (4) is gone up and is provided with gear shaft (7) by rotary support, described index dial (10) is installed on the described gear shaft (7), calibration position block (9) and the adjusting pad (12) corresponding with described index dial (10) are housed in the both sides of described clamp body (4), be provided with oil cylinder (13) and piston (3) thereof in the described clamp body (4), described piston (3) is provided with the tooth bar (2) with described gear shaft (7) engaged transmission.

2. crank-shaft link neck grinding 180 degree automatic dividing attachments according to claim 1, it is characterized in that: described rotary support is bearing (6).