CN201366627Y

CN201366627Y - Tool changing manipulator locking mechanism

Info

Publication number: CN201366627Y
Application number: CNU2009200121566U
Authority: CN
Inventors: 张树礼; 李小青; 胡文祥; 王俊义; 程龙
Original assignee: Dalian Machine-Tool Group Co Ltd
Current assignee: Dalian Huagen Machinery Co., Ltd.
Priority date: 2009-03-20
Filing date: 2009-03-20
Publication date: 2009-12-23
Anticipated expiration: 2019-03-20

Abstract

The utility model relates to a tool changing manipulator locking mechanism which comprises a clamping arm connected on a mechanical arm by a shaft, one end of the clamping arm is matched with a tool grasping slot arranged at the end of the mechanical arm, the mechanical arm is provided with a spring and firmly leans against the other end of the clamping arm, an ejector rob is arranged on the mechanical arm and sheathed with the spring, the spring leads one end of the ejector rob to lean against the clamping arm, a moving shaft is arranged on the mechanical arm along the direction being vertical to the ejector rob, a matched inclined plane is arranged between the other end of the ejector rob and the moving shaft, the spring that leads the moving shaft to lean against the end of the ejector rob is arranged between one end of the moving shaft and the mechanical arm, and the other end of the moving shaft extends out of the outer side of the mechanical arm. The tool changing manipulator locking mechanism has the advantages of firmly clamping a tool holder, self-locking function, no phenomenon of tool falling off, and the like.

Description

Tool-changing mechanical arm locking mechanism

Technical field

The utility model relates to a kind of retaining mechanism, particularly a kind of tool-changing mechanical arm locking mechanism that is used on the lathe.

Background technology

The tool changing of existing machine tool such as Digit Control Machine Tool is all finished by cutter-exchange mechanism, cutter-exchange mechanism comprises mechanical arm, be arranged with at the two ends of mechanical arm and grab cutter groove and clamp arm, rotating shaft is connected between clamp arm and the mechanical arm, one end of clamp arm with grab the cutter groove and match, be provided with spring between the other end of clamp arm and the mechanical arm, this spring leans the termination of clamp arm all the time and grabs the cutter groove and is interlocked, and handle of a knife is held within it.Because mechanical arm has the action of rotation in exchanging knives process, the cutter phenomenon appears falling under action of centrifugal force sometimes, mainly be to grab in the cutter groove, do not have retaining mechanism, the cutter phenomenon will occur falling so long as centrifugal force has overcome elastic force owing to handle of a knife is clamped in by elastic force.

Summary of the invention

The purpose of this utility model provides the tool-changing mechanical arm locking mechanism that a kind of overall structure is simple, flexible movements reliable, lock firmly, the cutter phenomenon can not occur falling, increase work efficiency, and overcomes the deficiencies in the prior art.

Tool-changing mechanical arm locking mechanism of the present utility model, comprise that axle is connected the clamp arm 2 on the mechanical arm 10, one end of clamp arm 2 matches with the cutter groove 1 of grabbing of mechanical arm 10 terminations, on mechanical arm 10, be provided with spring 4 and lean the other end at clamp arm 2, it is characterized in that: on mechanical arm 10, be provided with push rod 5, be with spring 7 on the push rod 5, spring 7 leans an end of push rod 5 on clamp arm 2, on mechanical arm 10, be provided with shifting axle 9 with push rod 5 perpendicular directions, be provided with the inclined-plane 11 that matches between the other end of push rod 5 and the shifting axle 9, be provided with between one end of shifting axle 9 and the mechanical arm 10 shifting axle 9 is leaned spring 8 in push rod 5 terminations, the other end of shifting axle 9 stretches out the outside of mechanical arm 10.

Tool-changing mechanical arm locking mechanism of the present utility model, owing in grabbing the cutter process, also have push rod to lean clamp arm, increased chucking power to handle of a knife, and the termination of push rod is supported by having the self-locking property inclined-plane, solid and reliable, overcome the phenomenon that is prone to cutter in the rotation process, improved operational security and operating efficiency, overall structure is simple, and flexible movements are reliable.

Description of drawings

Fig. 1 is the structural representation of the utility model specific embodiment;

Fig. 2 is an A-A cross-sectional schematic shown in Figure 1.

The specific embodiment

As shown in Figure 1, 2: 10 is mechanical arm, there is the symmetrically arranged cutter groove 1 of grabbing at its two ends, rotating shaft is connected with clamp arm 2 on mechanical arm 10, one end of clamp arm 2 with grab cutter groove 1 and match, spring 4 is housed on mechanical arm 10, and spring 4 leans the other end at clamp arm 2, leans clamp arm 2 all the time and grab cutter groove 1 to be interlocked, be used for the clamping shank of tool, the pulling shank of tool overcomes elastic force and gets final product when unloading cutter.For the clamping shank of tool securely, when being rotated, mechanical arm do not fall the cutter phenomenon, on mechanical arm 10, be installed with sliding sleeve 6, is furnished with push rod 5 mutually with sliding sleeve 6, be set with spring 7 on the push rod 5, the lower end of spring 7 leans on the step of mechanical arm 10, and the upper end leans on the step of push rod 5, makes the upper end of push rod 5 lean end at clamp arm 2 all the time.Lower end at push rod 5 is processed with the inclined-plane, this inclined-plane matches with inclined-plane on the shifting axle 9, shifting axle 9 is installed in the passage in the mechanical arm 10, and is provided with spring 8, the end that spring 8 leans shifting axle 9 inclined-plane on it is contacted with the inclined-plane of push rod 5 terminations inclined-plane 11 that formation cooperatively interacts.Under the elastic force effect of spring 8, shifting axle 9 leans push rod 5 by the inclined-plane 11 with self-locking property and makes clamp arm 2 and grab the 1 fastening self-locking of cutter groove when grabbing cutter.The other end of shifting axle 9 stretches out the outside of mechanical arm 10, mechanical arm 10 turns to the external end head that the collision block on the tool changing device behind the appropriate location just collides shifting axle 9 when unloading cutter, it is moved to the inside, simultaneously spring 8 is compressed, when unloading cutter so long as overcome the elastic force of spring 4 and spring 7 and push rod 5 moved down get final product.In order to make push rod 5 that a certain amount of displacement be arranged downwards, on shifting axle 9, be processed with counterbore 12, be used to insert push rod 5.

Claims

1, a kind of tool-changing mechanical arm locking mechanism, comprise that axle is connected the clamp arm (2) on the mechanical arm (10), one end of clamp arm (2) matches with the cutter groove (1) of grabbing of mechanical arm (10) termination, on mechanical arm (10), be provided with spring (4) and lean the other end in clamp arm (2), it is characterized in that: on mechanical arm (10), be provided with push rod (5), be with spring (7) on the push rod (5), spring (7) leans an end of push rod (5) on clamp arm (2), go up and the perpendicular direction of push rod (5) is provided with shifting axle (9) at mechanical arm (10), be provided with the inclined-plane (11) that matches between the other end of push rod (5) and the shifting axle (9), be provided with between one end of shifting axle (9) and the mechanical arm (10) shifting axle (9) is leaned spring (8) in push rod (5) termination, the other end of shifting axle (9) stretches out the outside of mechanical arm (10).