CN101288940A

CN101288940A - Machining center hydraulic cam linkage tool-changing mechanism

Info

Publication number: CN101288940A
Application number: CNA2008100116873A
Authority: CN
Inventors: 李全普; 王坤; 李凯; 高永强
Original assignee: DALIAN HUAKAI MACHINE TOOLS Co Ltd
Current assignee: DALIAN HUAKAI MACHINE TOOLS Co Ltd
Priority date: 2008-06-05
Filing date: 2008-06-05
Publication date: 2008-10-22

Abstract

A processing center hydraulic cam linkage reblading structure, comprising a drive wheel and a principal axis device arranged on a lathe body for driving a reblading arm to rotate. The inside of the principal axis device is provided with a spring and a push rod used for releasing knife; a push cylinder and a releasing knife cylinder are fixed on the lathe body; the inner cavity of the push cylinder is communicated with the inner cavity of the releasing knife cylinder by an oil pipe; the outer tip of a piston matched with the releasing knife cylinder is contacted with a push cam and a transmission pair is arranged between the push cam and the drive wheel; the outer end of a piston matched with the releasing knife cylinder is connected with an end shaft of a swaying rod and the other end of the swaying rod is axially connected with the principal axis device; the swaying rod leans on the tip of the push rod. When the drive wheel drives the reblading arm to rotate, the push rod can be pushed by the push cylinder and the releasing knife cylinder for releasing knife at the same time. The power comes from the drive wheel so as to achieve the linkage between the rotation of the reblading arm and the motion of the releasing knife. The structure provided by the present invention has the advantages of flexible and reliable motion, accurate interaction and simple overall structure.

Description

The machining center hydraulic cam linkage tool-changing mechanism

Technical field

The present invention relates to a kind of Metal Cutting Machine Tool parts, particularly a kind of machining center hydraulic cam linkage tool-changing mechanism.

Background technology

The main shaft tool-changing mechanism of existing machining center lathe is: the driving wheel that joins with power set is installed on lathe bed, the rotation of driving wheel can by rotating cam and rotating shaft and gear drive drives the tool changing arm axle and tool change arm rotates, the rotation of tool change arm can realize the cutter on the main shaft device and the exchange of the cutter on the tool magazine, when on main shaft device, getting cutter, also needing cutter-removing mechanism cooperates, present cutter-removing mechanism is to realize by the push rod that the oil cylinder that joins with hydraulic control device promotes in the main shaft device, the action of pine cutter and the rotation of tool change arm are controlled respectively, can not realize interlock, needing numerical control device detects, complicated integral structure not only, each action cooperation each other is prone to difference.

Summary of the invention

The purpose of this invention is to provide a kind of loose cutter and can realize cooperating accurate, the simple machining center hydraulic cam linkage tool-changing mechanism of overall structure between interlock, each action, overcome the deficiencies in the prior art with the tool changing action.

Machining center hydraulic cam linkage tool-changing mechanism of the present invention, it comprises driving wheel 7 and the main shaft device 1 that is installed in driving tool change arm 2 rotations on the lathe bed, in main shaft device 1, be provided with spring 23 and the push rod 25 that is used for loose cutter, it is characterized in that: on lathe bed, be fixed with and promote oil cylinder 11 and loose knife oil cylinder 16, the inner chamber 12 that promotes oil cylinder 11 is communicated with through oil pipe 14 with the inner chamber 18 of loose knife oil cylinder 16, contact with actuating cam 8 with the external end head that promotes the piston 10 that oil cylinder 11 matches, be provided with transmission between actuating cam 8 and the driving wheel 7, the external end head of the piston 19 that matches with loose knife oil cylinder 16 is connected with an end axle of fork 21, axle is connected between the other end of fork 21 and the main shaft device 1, and fork 21 leans on the termination of push rod 25.

Machining center hydraulic cam linkage tool-changing mechanism of the present invention, axle is connected with roller 24 on the wherein said fork 21, and fork 21 leans by the termination of roller 24 with push rod 25.

Machining center hydraulic cam linkage tool-changing mechanism of the present invention, the external end head axle of wherein said piston 10 is connected with roller 9, and the external end head of piston 10 contacts with actuating cam 8 by roller 9.

Machining center hydraulic cam linkage tool-changing mechanism of the present invention, when driving wheel 7 drives the tool change arm rotation, can promote push rods 25 by promotion oil cylinder 11 and loose knife oil cylinder 16 simultaneously and carry out loose cutter, its power all derives from driving wheel 7, has realized that tool change arm rotates and the interlock of loose cutter action, flexible movements are reliable, shortened tool change time, cooperatively interacting of each action is accurate, has reduced the switch testing process, reduced manufacturing cost, overall structure is simple.

Description of drawings

Fig. 1 is the structural representation of the specific embodiment of the invention.

The specific embodiment

As shown in the figure: the driving wheel 7 that joins with drive unit is installed on the lathe bed of work in-process scheming bed, and driving wheel 7 is a gear, and driving wheel 7 is meshed with gear on the rotating cam 6.Cam groove on the rotating cam 6 matches with roller in the rotating shaft 5, when driving wheel 7 rotates, can drive rotating shaft 5 by rotating cam 6 rotates, between the termination of rotating shaft 5 and tool changing arm axle 3 a pair of bevel gear that is meshed 4 is housed, tool change arm 2 is installed on the tool changing arm axle 3, and rotating shaft 5 is rotated the back and driven tool change arm 2 rotations by tool changing arm axle 3.Main shaft device 1 inboard that is installed on the lathe bed is provided with butterfly spring 23 and push rod 25, realizes the loose cutter action of main shaft when push rod 25 is pressed to butterfly spring 23.Above-mentioned is the prior art part, no longer describes in detail.

On lathe bed, be installed with and promote oil cylinder 11 and loose knife oil cylinder 16, promote the inner chamber 12 of oil cylinder 11 and the inner chamber 18 of loose knife oil cylinder 16 and be connected through pipe joint 13, oil pipe 14, pipe joint 17.With promote that piston 10 right-hand members that oil cylinder 11 matches stretch out the cylinder body outside and axle is connected with roller 9, the outer circumference surface of roller 9 contacts with the outer circumference surface of actuating cam 8 on being supported on lathe bed, has gear to be meshed with driving wheel 7 on the actuating cam 8.

The right-hand member head of the piston 19 that matches with loose knife oil cylinder 16 stretches out the cylinder body outside and is connected by spools 15 with the upper end of fork 21.The lower end of fork 21 is connected with 22 of contiguous blocks on being fixed on main shaft device 1.Middle part at fork 21 is connected with roller 24 with axle 20, and the outer circumference surface of roller 24 contacts with the left side of push rod 25.

When driving wheel 7 passes through rotating cam 6, rotating shaft 5, bevel gear 4, when tool changing arm axle 3 drives tool change arm 2 rotations, driving wheel 7 also drives actuating cam 8 and rotates, actuating cam 8 leans roller 9 and piston 10 is moved to the left, make hydraulic oil in the inner chamber 12 in oil pipe 14 enters the inner chamber 18 of loose knife oil cylinder 16, promoting piston 19 moves right, having promoted fork 21 simultaneously swings to the right, leaning push rod 25 by roller 24 again in swing moves right, butterfly spring 23 is compressed, reach the purpose of loose cutter, this moment, the elastic force of butterfly spring 23 also promoted fork 21, make piston 19 bear left thrust, this thrust remains roller 9 by hydraulic oil and contacts with actuating cam 8.Reach the interlock of tool changing action and the action of loose cutter.

Claims

1, a kind of machining center hydraulic cam linkage tool-changing mechanism, it comprises being installed in and drives driving wheel (7) and the main shaft device (1) that tool change arm (2) rotates on the lathe bed, in main shaft device (1), be provided with spring (23) and be used for the push rod (25) of loose cutter, it is characterized in that: on lathe bed, be fixed with and promote oil cylinder (11) and loose knife oil cylinder (16), the inner chamber (12) that promotes oil cylinder (11) is communicated with through oil pipe (14) with the inner chamber (18) of loose knife oil cylinder (16), contact with actuating cam (8) with the external end head that promotes the piston (10) that oil cylinder (11) matches, be provided with transmission between actuating cam (8) and the driving wheel (7), the external end head of the piston (19) that matches with loose knife oil cylinder (16) is connected with an end axle of fork (21), axle is connected between the other end of fork (21) and the main shaft device (1), and fork (21) leans on the termination of push rod (25).

2, machining center hydraulic cam linkage tool-changing mechanism according to claim 1 is characterized in that: described fork (21) is gone up axle and is connected with roller (24), and fork (21) leans by the termination of roller (24) with push rod (25).

3, machining center hydraulic cam linkage tool-changing mechanism according to claim 2 is characterized in that: the external end head axle of described piston (10) is connected with roller (9), and the external end head of piston (10) contacts with actuating cam (8) by roller (9).