CN202752909U

CN202752909U - Double cutting disc tool changer structure

Info

Publication number: CN202752909U
Application number: CN 201220351055
Authority: CN
Inventors: 邹运; 赵顺利; 胡文祥
Original assignee: DALIAN GOLDEN CNC Co Ltd
Current assignee: Dalian Gaojin Numerical Control Group Corp., Ltd.
Priority date: 2012-07-19
Filing date: 2012-07-19
Publication date: 2013-02-27
Anticipated expiration: 2022-07-19

Abstract

A double cutting disc tool changer structure comprises a tool changer connecting body, a box body, a central shaft, an outer cutter disk and outer cutter sleeves, an idler wheel of the end of the outer cutter sleeve is matched with a positioning groove on the side of the periphery of a positioning disk. A reversed cutter block is connected below the box body and connected with a pull bar. The double cutting disc tool changer structure further comprises an inner cutter disk, the central portion of the inner cutter disk is arranged between a central shaft and a central hole of the outer cutter disk, bearings are arranged among the inner cutter disk, the central shaft and the outer cutter disk, and a plurality of inner cutter sleeves which are clamped on the periphery of a disk body of the inner cutter disk by clamping jaws of the inner cutter sleeves. Push-type cutter cylinders are arranged at the end of the central shaft, and the outer end of the piston is connected with a clamping cutter jaw device, the outer end of the piston rod is matched with the push-type cutter cylinders, and the clamping cutter jaw device is matched with the inner cutter sleeves. An outer cutter sleeve support ear on the periphery of the outer cutter disk is connected with an exchanging cutter clamp, and the exchanging cutter clamp is provided with the exchanging cutter clamp which is matched with the inner cutter sleeves. The double cutting disc tool changer structure has the advantages of being large in capacity, heavy in load, and high in efficiency.

Description

The two-disc cutter library structure

Technical field

The utility model relates to the magazine tool structure on a kind of machining center equipment, particularly a kind of two-disc cutter library structure.

Background technology

The circular tool magazine that uses in the processing center machine tool partly is comprised of hilted broadsword dish, indexing mechanism, the cutter mechanism etc. of falling, cutterhead finish cutter installation, locate, select cutter; The cutter mechanism that falls is finished cutter and is selected switching between cutter state and the tool changing state; Cutter-exchange mechanism is finished the automatic exchange of cutter between tool magazine and main shaft.Its operation principle is as follows:

1. cutterhead drives into the dividing movement of having a rest in the ranks by cylindrical cam mechanism and selects cutter;

2. the action of falling the cutter mechanism swings to the axis vertical direction with guide pin bushing by the axis horizontal direction, and realizes the accurate location of cutter;

3. by the cutter-exchange mechanism action, finish the exchange of cutter between cutter tool magazine and processing center machine tool main shaft;

4. cutter-exchange mechanism swings broach shell (cutter) and gets back to the axis horizontal direction, and cutter, cutter, tool changing circulation are selected in the cylindrical cam indexing action next time.

The circular tool magazine that present big-and-middle-sized processing center machine tool configures, be generally the BT50 specification, maximum dress cutter capacity is generally 24, the center cutter reference diameter is about 1m, maximum tool diameter is 200mm, maximum tool weight is 25, and (it is 1s that MDV75 kg, unit select the cutter time, and the general election cutter time is 12s.Along with Composite, the high speed of processing center machine tool host function, the present technical merit of circular tool magazine becomes a large bottleneck that improves the lathe operating efficiency, major embodiment be following some:

1. tool magazine finite capacity: need to occupy two cutter spacing greater than the cutter of 100mm because tool magazine is installed diameter, and lathe needs 8 when carrying out heavy cutting the major diameter cutter, 8 small-diameter cutters then can only be installed this moment, the broach shell utilization rate is lower, this configuring condition is large-scale for engine housing etc., complex parts to add man-hour far from being enough, need to improve the tool magazine capacity;

2. the magazine knife-selecting time (tool changing non-cutting time) is long: because magazine knife-selecting action is driven by cylindrical cam indexing, the cutterhead intermittent movement is finished, and the general election cutter time is 12s.Add man-hour for high speed, high feeding, the unit cutting time, often about 10s, surpassed the cutting time non-cutting time, greatly reduces the lathe operating efficiency.Need to improve magazine knife-selecting speed, reduce non-cutting time;

3. heavy cutter can't use.Large Machining Center is more and more carried out heavy cutting, needs to use large diameter disc type milling cutter, and simultaneously, box parts need to use the lengthening boring cutter, and the weight of these special tools can reach 30kg, has surpassed the bearing capacity of existing tool magazine, cutter-exchange mechanism.

Summary of the invention

The purpose of this utility model provide a kind of large capacity, at a high speed, the two-disc cutter library structure of large, the high efficiency of heavy duty, working range, overcome the deficiencies in the prior art.

Two-disc cutter library structure of the present utility model, comprise the tool magazine connector, be connected to casing, central shaft with the tool magazine connector, be fixedly connected with positioning disk on the casing, be rotatably connected to outer cutterhead in the central shaft outside, the periphery of outer cutterhead is connected with a plurality of outer broach shells by link and outer broach shell support ear, and the broach shell roller of outer broach shell termination and the locating slot on the positioning disk peripheral side match; Be connected with the piece of falling the cutter below casing, there is the groove of falling the cutter that matches with described broach shell roller the piece of falling cutter side; The piece of falling the cutter connects pull bar; Described two-disc cutter library structure also comprises interior cutterhead, the core of interior cutterhead is between the centre bore of central shaft and outer cutterhead, between interior cutterhead and central shaft and outer cutterhead, be equipped with bearing, by interior broach shell jaw clamping a plurality of interior broach shells arranged in the disc perimeter of interior cutterhead; Termination at central shaft is equipped with the push broach cylinder by air cylinder support and bearing pin, and the piston rod external end head that matches with the push broach cylinder is connected with the folder push broach jaw arrangement that matches with interior broach shell by ring flange; One of them outer broach shell support ear is connected with the exchange cutter holder on the periphery of cutterhead outside, on the exchange cutter holder exchange jaw that matches with interior broach shell is arranged.

Two-disc cutter library structure of the present utility model, wherein said folder push broach jaw arrangement structure is to be connected to connecting plate at described ring flange, connecting plate and framework join, be provided with clamping cylinder at framework, the piston rod end that matches with clamping cylinder is connected to taper and leans piece, is connected with symmetrical folder push broach pawl by the pawl axle on framework, on the limit shaft that folder push broach pawl upper end rides against with framework is fixedly connected with, there are the spring that leans steel ball, steel ball to be pressed against folder push broach pawl upper outside at framework.

Two-disc cutter library structure of the present utility model has two cutterheads and is used in conjunction with each other, and has obviously increased the quantity of broach shell, be that the tool magazine capacity increases, the overall structure weight capacity strengthens, not only high operating efficiency, also increase the scope of application, satisfied the needs of machining center development.

Description of drawings

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

Fig. 2 is that schematic diagram is looked on the right side shown in Figure 1;

Fig. 3 is folder push broach jaw arrangement structural representation in the utility model specific embodiment;

Fig. 4 is that schematic diagram is looked on a left side shown in Figure 3;

Fig. 5 is that taper shown in Figure 4 leans the structural representation between the symmetrical folder push broach pawl of piece insertion.

The specific embodiment

As shown in Figure 1, 2: 1 is the tool magazine connector, is connected to casing 3, tubular center's axle 4 with tool magazine connector 1, is fixedly connected with positioning disk 7 on the casing 3.Be rotatably connected to outer cutterhead 8 in central shaft 4 outsides, outer cutterhead 8 is connected with driving mechanism by gear.The periphery of outer cutterhead 8 is connected with a plurality of outer broach shells 13 by link 9 and outer broach shell support ear 12, and the broach shell roller 11 of outer broach shell 13 terminations matches with the locating slot 10 on positioning disk 7 peripheral sides.

Be connected with the piece of falling the cutter 24 below casing 3, there is the groove of falling the cutter 26 that matches with broach shell roller 11 piece of falling the cutter 24 sides.The piece of falling the cutter 24 connects pull bar 2.The broach shell roller 11 that is positioned on the nethermost outer broach shell 13 just enters the groove of falling the cutter 26, can upwards promote the piece of falling the cutter 24 by pull bar 2, from wearing moving outer broach shell support ear 12 with respect to link 9 rotations, outer broach shell 13 is rotated thereupon, is convenient to the tool changing operation.

The above-mentioned prior art part that is no longer describes in detail.

The two-disc cutter library structure also comprises interior cutterhead 16, the core of interior cutterhead 16 is between the centre bore of central shaft 4 and outer cutterhead 8, between interior cutterhead 16 and central shaft 4 and outer cutterhead 8, be equipped with bearing, make outer cutterhead 8 and the interior cutterhead 16 all can be with respect to central shaft 4 each autorotation.Disc perimeter at interior cutterhead 16 has a plurality of interior broach shells 14 by symmetrical interior broach shell jaw 15 clampings.Interior broach shell jaw 15 is made for elastomeric material, carries out clamping by the internal broach shell 14 of its elasticity, as long as overcome its elastic force when taking off.Interior cutterhead 16 is connected with gear 6 by screw 5, and gear 6 joins with actuating unit.

Termination at central shaft 4 is equipped with push broach cylinder 19 by bolt, air cylinder support 17 and bearing pin 18, the piston rod that matches with push broach cylinder 19 downwards and external end head be connected with ring flange 21, be fixedly connected with the folder push broach jaw arrangement that matches with interior broach shell 14 by ring flange 21 and bolt.

As shown in Figure 2: one of them outer broach shell support ear 12 is connected with exchange cutter holder 27 on the periphery of cutterhead 8 outside, and exchange has the exchange jaw 28 of the elastomeric material that symmetrical and interior broach shell 14 match on the cutter holder 27.

Shown in Fig. 1,3,4,5: above-mentioned folder push broach jaw arrangement structure is to be connected to connecting plate 22 at described ring flange 21, connecting plate 22 joins with framework 25, at framework 25 clamping cylinder 20 is installed, the piston rod end that matches with clamping cylinder 20 is connected to taper by screw rod and leans piece 33.On framework 25, be connected with symmetrical folder push broach pawl 23 by pawl axle 29, the middle part gapped 34 of folder push broach pawl 23.Folder push broach pawl 23 upper ends ride against on the limit shaft 32 that is fixedly connected with framework 25, have the spring 30 that leans steel ball 31, steel ball 31 to be pressed against folder push broach pawl 23 upper outside at framework 25.

Outer broach shell 13 tool changing action on this tool magazine China and foreign countries cutterhead 8 is constant, same as the prior art, interior broach shell 14 tool changing on the interior cutterhead 16 action is as follows: drive outer cutterhead 8 rotations by controlling organization first and make exchange cutter holder 27 on the outer cutterhead 8 turn to position, the end, 19 actions of push broach cylinder, piston rod moves down, drive clamping cylinder 20, folder push broach pawl 23 is downward, tight cylinder 20 moves thereupon, make the interior broach shell 14 of its below of folder push broach pawl 23 clampings, move down simultaneously interior broach shell 14 is taken off on interior broach shell jaw 15, and then continue to move down and deliver to interior broach shell 14 on the exchange cutter holder 27 and by exchange jaw 28 clampings, then undertaken by former tool changing action, namely pull bar 2 is made upwards enhancing action and exchange cutter holder 27 and the interior broach shell 14 on it is rotated carry out tool changing.

Claims

1. two-disc cutter library structure, comprise tool magazine connector (1), be connected to casing (3), central shaft (4) with tool magazine connector (1), be fixedly connected with positioning disk (7) on the casing (3), be rotatably connected to outer cutterhead (8) in central shaft (4) outside, the periphery of outer cutterhead (8) is connected with a plurality of outer broach shells (13) by link (9) and outer broach shell support ear (12), and the locating slot (10) on the broach shell roller (11) of outer broach shell (13) termination and positioning disk (7) peripheral side matches; Be connected with the piece of falling the cutter (24) in casing (3) below, there is the groove of falling the cutter (26) that matches with described broach shell roller (11) piece of falling the cutter (24) side; The piece of falling the cutter (24) connects pull bar (2); It is characterized in that:

Described two-disc cutter library structure also comprises interior cutterhead (16), the core of interior cutterhead (16) is positioned between the centre bore of central shaft (4) and outer cutterhead (8), between interior cutterhead (16) and central shaft (4) and outer cutterhead (8), be equipped with bearing, by interior broach shell jaw (15) clamping a plurality of interior broach shells (14) arranged in the disc perimeter of interior cutterhead (16);

Termination at central shaft (4) is equipped with push broach cylinder (19) by air cylinder support (17) and bearing pin (18), and the piston rod external end head that matches with push broach cylinder (19) is connected with the folder push broach jaw arrangement that matches with interior broach shell (14) by ring flange (21);

One of them outer broach shell support ear (12) is connected with exchange cutter holder (27) on the periphery of cutterhead (8) outside, on the exchange cutter holder (27) the exchange jaw (28) that matches with interior broach shell (14) is arranged.

2. two-disc cutter library structure according to claim 1, it is characterized in that: described folder push broach jaw arrangement structure is to be connected to connecting plate (22) at described ring flange (21), connecting plate (22) joins with framework (25), be provided with clamping cylinder (20) at framework (25), the piston rod end that matches with clamping cylinder (20) is connected to taper and leans piece (33), be connected with symmetrical folder push broach pawl (23) at framework (25) by pawl axle (29), folder push broach pawl (23) upper end rides against on the limit shaft (32) that is fixedly connected with framework (25), there are the spring (30) that leans steel ball (31), steel ball (31) to be pressed against folder push broach pawl (23) upper outside at framework (25).