CN2796929Y

CN2796929Y - Automatic exchange device of swing arm type work piece pallet

Info

Publication number: CN2796929Y
Application number: CN 200520042696
Authority: CN
Inventors: 邹启光
Original assignee: Shanghai Machine Tool Factory Co Ltd
Current assignee: Shanghai Machine Tool Factory Co Ltd
Priority date: 2005-06-21
Filing date: 2005-06-21
Publication date: 2006-07-19
Anticipated expiration: 2015-06-21

Abstract

The utility model discloses an automatic exchange device of a swing arm type workpiece pallet, which comprises an exchange system, a hydraulic transmission system, a pneumatic control system and an electrical control system. A rotating disk is arranged on the upper surfaces of bases, a shallow positioning sleeve and a deep positioning sleeve are arranged on the upper surface of the rotating disk. A rotary mechanism is installed among the rotating disk and the bases, and a pedal bolt device is arranged on the lower surface of a supporting plate. Working table top positioning shafts are arranged on the upper side of the rotating disk, and an interlocking device is installed between the two working table top positioning shafts. The outer sides of the upper surfaces of the two bases are fixedly connected with an arm which is provided with a rotary gear through a fixing shaft of a supporting frame, and single tooth oscillating oil cylinder which is fixed on the bases is installed at the engagement point of the arm and the rotary gear. A limiting single emitting device is arranged in an arm swing start-stop position, driving bolt oil cylinders are respectively installed on the shifting ends of the arm and shifting blocks which are connected with a working table are arranged on the upper surfaces of the bolt oil cylinders. The utility model has the advantages of high automation degree, convenient assembly and disassembly of workpieces, correct and reliable transmission and exchange and high bearing capability. The utility model is suitable for serving as an automatic exchange device of a horizontal processing center workpiece.

Description

Oscillating arm type automatic switching apparatus of tray for work pieces

Technical field

The utility model relates to a kind of automatic switching apparatus of tray for work pieces, especially a kind of automatic switching apparatus of tray for work pieces that is used for horizontal Machining centers.

Background technology

At present, the work pieces exchange station that uses on horizontal Machining centers mainly contains gauche form and front and back formula board.

Gauche form board such as Chinese utility model patent number 03276571.1, day for announcing 2004.09.15, a kind of double change-table unit is disclosed, it is by pallet changer, pallet (pallet), conveying device and stationary fixture are formed, pallet changer, pallet and conveying device are connected the left side and the right side of lathe, stationary fixture is contained in above the platen, is located at the conveying elongated cylinder below the pallet changer, when lift cylinder lifts or falls, block or throw off pallet reciprocal back and forth three times, its pallet is pushed into stationary fixture or draws in pallet changer.The location cylinders that have two covers to rise or descend on the stationary fixture then have compressing or unclamping cylinder of quadruplet band self-locking device in both sides, the pallet of tool positions and clamps to entering fixedly, and the executive component of conveying device can be steam-operating, machinery or electric element.Its major defect is the revolution and the installation that can't be applicable to large-scale workpiece, and exchange displacement is long, efficient is low, floor space is big.

Before and after formula board such as Chinese utility model patent numbers 94206080.6, day for announcing 1994.12.28, a kind of pallet changer of locating structure improvement is disclosed, this pallet changer includes a support, two movable stackers, one fixedly stacker and two workbench, wherein fixedly the stacker top is provided with trapezoidal evagination helical teeth in some places beyond this carrier covering scope, and in this evagination helical teeth surface and offer pore, the trapezoidal indent helical teeth of number is then arranged in the bottom of this workbench etc., but make the interior double wedge of this this bottom surface of workbench mat and the fixing meshing location of stacker top evagination helical teeth.Its major defect is to satisfy the revolution of large-scale workpiece, installation, conveying.

Have the work pieces exchange station table top that uses now and have only 630mm * 630mm on horizontal Machining centers, the chain transmission is adopted in the exchange transmission of work top.Therefore, for large-scale heavy burden workpiece, mesa dimensions is not enough, pushes away, spurs work, and the exchange transmission speed is slow, directly has influence on the production efficiency of horizontal Machining centers.

Summary of the invention

The utility model is the problem that will solve the work pieces exchange station existence of using on the existing horizontal Machining centers, the oscillating arm type automatic switching apparatus of tray for work pieces that provide a kind of automaticity height, work-handling is convenient, the transmission exchange is correctly reliable, is applicable to large-scale heavy burden workpiece.

As follows for realizing the technical scheme that the purpose of this utility model adopted:

A kind of oscillating arm type automatic switching apparatus of tray for work pieces comprises being positioned at the lathe bed front, the exchange supporting plate base of the left and right sides, two work tops above the base on the left and right pallet track are positioned at the rotary table below the work top, Hydraulic Power Transmission System, atmospheric control, electric control system.

Be provided with rotating disk below the workbench, above the base, shallow positioning sleeve, dark positioning sleeve, sender switch are housed above the rotating disk, between rotating disk and the base slew gear is installed, be provided with the step bolt device below the supporting plate, above the rotating disk, be provided with the work top locating shaft below the workbench, between two work top locating shafts interlock is installed;

Two outsides above the base flexibly connect the arm that has swiveling gear by the support fixed axis, with the arm swiveling gear place of being meshed the monodentate oscillating oil cylinder that is fixed on the base is installed, arms swing start-stop position is provided with spacing signal transmitter, arm is stirred and is separately installed with the driving plugging pin oil cylinder on the end, is provided with the piece of stirring that is connected on the workbench above the plugging pin oil cylinder.

Slew gear is made up of rotating shaft, bearing block, bearing, and rotating shaft is equipped with below the rotating disk, and bearing block is installed on the base, flexibly connects by upper end plain thrust bearing, lower end radial ball bearing between rotating shaft and the bearing block.

The step bolt device is made up of left and right pedal, forward and backward turnover panel, fulcrum, drag hook, positioning sleeve, cover plate, locating shaft, stage clip, positioning sleeve is fixed on the rotating disk, live in the positioning sleeve and join locating shaft, be provided with stage clip between locating shaft convex platform and the positioning sleeve cover plate, the locating shaft lower end is provided with the sender piece, be provided with the travel switch that is fixed on the base with sender piece corresponding section, flexibly connect by drag hook, the forward and backward turnover panel that is installed on the fulcrum between locating shaft and the pedal.

Interlock is made up of rod-pulling type oil cylinder, table top positioning sleeve, pushing block, stage clip that the table top locating shaft is housed, rod-pulling type oil cylinder level is installed on the left and right base, be fixedly connected with pushing block on the shaft of oil cylinder two ends, be provided with an inclined-plane below the pushing block, the table top locating shaft that matches with the pushing block inclined-plane is provided with elongated slot, the elongated slot lower surface is curved, and the oil cylinder drawhead is equipped with outward near switch, table top is installed near switch on the table top positioning sleeve.

Drive plugging pin oil cylinder and on its piston rod head outer ring and roll assembly is housed, the piston rod two ends are equipped with the sender piece, and oil cylinder cover two ends are equipped with near switch.

Worktable lifting oil cylinder and angling cylinder are housed below the rotary table; The outside is provided with position sender switch.

The work top length and width all is 800mm.

The utility model is compared as board with existing duplex has following characteristics:

1.800mm the scope of * 800mm double-workbench face loading workpiece is big, and outer step bolt device of employing machine and slew gear, makes save greatly the non-cutting time of the outer workpiece loading and unloading of machine;

2. hydraulic oil cylinder driving swing type arm comes the transmission pallet changer, and driving force is big;

3. adopt interlock in the switch, drive plugging pin oil cylinder, spacing signal transmitter, make switch correctly reliable;

4. employing Hydraulic Power Transmission System, atmospheric control, electric control system automaticity height.

Description of drawings

Fig. 1 is a structural front view of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the right view of Fig. 1;

Fig. 4 is a step bolt device structural representation;

Fig. 5 drives the plugging pin oil cylinder structural representation;

Fig. 6 is the exchange system functional schematic;

Fig. 7 is a structure principle chart of the present utility model;

Fig. 8 is turntable hydraulic pressure and pneumatic schematic diagram;

Fig. 9 is an exchange system hydraulic control schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1,2,3, shown in 6,7, oscillating arm type automatic switching apparatus of tray for work pieces, by being installed in the lathe bed front, the exchange supporting

plate base

5,8 of the left and right sides, two work tops 1,2 above the

base

5,8 on the left and right pallet track, be positioned at the rotary table 53 below the work top, Hydraulic Power Transmission System, atmospheric control, the PLC electric control system, compositions such as guidance panel.

Two workbench 1,2 table top length and widths all are 800mm.Below the workbench 1,2, be provided with rotating

disk

30,31 above the base, shallow positioning sleeve 49, dark positioning sleeve 48, sender switch are housed, rotating disk 30 above the rotating

disk

30,31,31 with base 5, slew gear 70 is installed between 8, is provided with step bolt device 50 below rotating

disk

30,31 supporting plates, rotating disk 30, above 31, respectively be provided with between 19, two work top locating shafts 19 of work top locating shaft below the workbench 1,2 interlock 60 be installed.

The outside is by the

movable arm

3,4 of installing of support 6,13 fixed axis above two

bases

5,8, and

arm

3,4 is installed bulging joining sleeve 36 with support 6,13 fixed axis junctions, is used for the axial restraint of arm 3,4.With the coaxial place's fixed installation of installing hole swiveling gear, the monodentate oscillating

oil cylinder

11,12 that is meshed with

arm

3,4 swiveling gears is fixed on the

base

5,8 by the oil cylinder frame below the arm 3,4.Arm is equipped with spacing signal transmitter 80,81 on 3, the 4 swing start-stop positions, and spacing signal transmitter 80 is made up of limit base 41, stop screw 39, limit shaft 38, switch

LS6.Arm

3,4 is stirred to be separately installed with on the end and is driven plugging

pin oil cylinder

40A, 40B, and plugging pin oil cylinder piston rod 43 upper ends can be inserted and be stirred piece 9,10, stir piece 9,10 and are connected on the limit of workbench 1,2.

Slew gear 70 is made up of rotating shaft 32, bearing block 35, bearing 33,34, and rotating shaft 32 is installed in rotating disk 30, below 31, bearing block 35 is installed on the

base

5,8, flexibly connects by upper end plain thrust bearing 34, lower end radial ball bearing 33 between rotating shaft 32 and the bearing block 35.

Interlock 60 is by rod-pulling type oil cylinder 22, the table top positioning sleeve 20 that table top locating shaft 19 is housed, pushing block 21,23, stage clip 51 is formed, rod-pulling type oil cylinder 22 levels are installed in left and right base 5, on 8, be fixedly connected with pushing block 21 on the oil cylinder 22 two ends shafts, 23, pushing block 21, be provided with an inclined-plane below 23, the table top locating shaft 19 that matches with pushing block 21,23 inclined-planes is provided with elongated slot, the elongated slot lower surface is curved, oil cylinder 22 drawheads are equipped with outward near switch LS9, and LS10 is equipped with table top near switch on the table top positioning sleeve 20.

Fig. 3, shown in 4, step bolt device 50 is by a left side,

right steps

18A, 18B, before, end blocking 25,26, fulcrum 24, drag hook 17, positioning sleeve 14, cover plate 28, locating shaft 15, stage clip 27 is formed, positioning sleeve 14 is fixed on the rotating

disk

30,31, lives in the positioning sleeve 14 and joins locating shaft 15, be provided with stage clip 27 between locating shaft 15 convex platforms and the positioning sleeve cover plate 28, locating shaft 15 lower ends are provided with sender piece 16, are provided with the travel switch LS13 that is fixed on the

base

5,8 with sender piece 16 corresponding sections, LS14, a locating shaft 15 and a left side, right steps 18A, between the 18B by drag hook 17 and be installed on the fulcrum 24 before, end blocking 25,26 flexibly connects.

When the work top on pallet track 1,2, when workpiece or clamping apparatus are installed, can use

foot pedal

18A, 18B helps to install.Down step on, can pull out supporting plate step latch locating shaft 15, and then manually (9 ° of every rotations, pin is up lifted, under the effect of spring force, step latch locating shaft 15 can insert supporting plate location shallow bore hole 49) the rotary work table top, making things convenient for the operation of workpiece pressing plate or clamping apparatus trip bolt, after the installation, must make work top rotate to swap status, be that step latch locating shaft 15 inserts rotating disks location deep holes 48, this moment foot pedal limit switch LS13, the LS14 sender.

Shown in Figure 5, drive on 43 in the piston rod of plugging pin oil cylinder outer ring and roll assembly 45 is housed, piston rod 43 two ends are equipped with sender piece 46,47, and oil cylinder overlaps 44 two ends and is separately installed with near switch LS3 LS4, LS7, LS8.

Shown in Figure 8, worktable lifting oil cylinder 42 and angling cylinder 52 are housed below the rotary table 53; Outside installation site sender switch LS1, LS2, LS3.Be provided with inflatable mouth between rotary table 49 and the pallet changer 1,2, inflatable mouth meets 5kg/cm by two-position four-way solenoid valve ²Compressed air.

Shown in Figure 9, the entrance end of two swing arm monodentate oscillating

oil cylinders

11,12 and a positioning tie bar formula oil cylinder 22 connects three position four-way electromagnetic valve by one-way throttle valve, and two plugging

pin oil cylinder

40A, 40B import and export and connect two-position four-way solenoid valve.

The supporting plate exchange system is used for the exchange of double-workbench face 1,2, and whole system is controlled with 5 hydraulic cylinders; The location of work top 1,2 on supporting plate goes out rod oil cylinder 22 and drives mechanical alignment pin location (left and right sides supporting plate is mechanical interlocked) with 1 positioning tie bar formula is two;

Swing arm

3,4 drives work tops 1,2nd, is undertaken by latch cylinder 40A, the 40B of two parallel connections.Whole exchange process is controlled by PLC, simultaneously in the positive front of switch, a manual operation control panel is arranged, and by the push-botton operation of this panel, can carry out the operation of single step action.

The exchange of work top, the state (Fig. 6,7) in the time of at first will satisfying the exchange beginning

1. work top 2 is in machining area, and work top 1 is in the clamping workpiece zone.

2. swing arm 3, swing arm 4 all are in anteposition, and the plugging pin oil cylinder 40A in the swing arm, 40B piston rod 13 all descend.

3. have the supporting plate of work top 2 will be in switch: the judgment task table top is on which piece supporting plate; Two supporting plate step latch locating shafts 19 all rise (inserting the supporting plate deep hole); Cylinder 22 states are alignment pin 19 risings (inserting work top 2) on the supporting plate.

Then, carry out the machinery exchange (automatic or manual) of work top again.The flow process of automatic switching motion: at first be in swap status, carry out following action then:

Set a work top 2 at another work top 1 of machining area on clamping workpiece zone (left side)

Rotary table face 49 is walked right position (switch is apart from the alignment of shafts 460);

Foregate is opened (4 signals of two fan doors) work top 2 and is risen, begins to blow, and the position, back is walked in swing arm 4;

40A, 40B cylinder piston rod 43 rise and insert work top 1,2.

Anteposition is walked in swing arm 4: rotary table 53 is walked position, a left side (walking 920); Cylinder 22 piston rods move to left:

Alignment pin 19 declines (breaking away from work top 2) on the left supporting plate of alignment pin 19 risings (inserting work top 1) on the right supporting plate.

Position, back: 40A is walked in

swing arm

3,40B cylinder piston rod 43 descends, and breaks away from work top 1.

Anteposition is walked in swing arm 3:

Rotary table 53 is blown and is closed; Work top 2 descends; Foregate is closed.

Machining area processing is carried out; The workpiece transposing of clamping workpiece zone is carried out.

Work top 2 is at machining area; Work top 1 is in swap status on clamping workpiece zone (the right).

Claims

1. an oscillating arm type automatic switching apparatus of tray for work pieces comprises being positioned at the lathe bed front, the exchange supporting plate base (5 of the left and right sides, 8), two work tops (1,2) above the base (5,8) on the left and right pallet track, be positioned at work top (1,2) Xia Mian rotary table (53), Hydraulic Power Transmission System, atmospheric control, electric control system is characterized in that:

Workbench (1,2) below, be provided with rotating disk (30 above the base, 31), rotating disk (30, shallow positioning sleeve (49), dark positioning sleeve (48), sender switch are housed 31), rotating disk (30,31) with base (5, slew gear (70) is installed 8), is provided with step bolt device (50) below rotating disk (30, the 31) supporting plate, rotating disk (30,31) respectively be provided with work top locating shaft (19) above, below the workbench (1,2), interlock (60) is installed between two work top locating shafts (19);

Two bases (5,8) outside is by support (6 above, 13) fixed axis flexibly connects the arm (3 that has swiveling gear, 4), be equipped with arm (3,4) the swiveling gear place of being meshed and be fixed on base (5,8) the monodentate oscillating oil cylinder (11 on, 12), arm (3,4) swing start-stop position is provided with spacing signal transmitter (80,81), arm (3,4) stir be separately installed with on the end drive plugging pin oil cylinder (40A, 40B), plugging pin oil cylinder (40A, be provided with 40B) to be connected and stir piece (9,10) on the workbench (1,2).

2. oscillating arm type automatic switching apparatus of tray for work pieces according to claim 1, it is characterized in that, described slew gear (70) is by rotating shaft (32), bearing block (35), bearing (33,34) form, rotating shaft (32) is installed in below the rotating disk (5,8), and bearing block (35) is installed in base (5,8) on, flexibly connect by upper end plain thrust bearing (34), lower end radial ball bearing (33) between rotating shaft (32) and the bearing block (35).

3. oscillating arm type automatic switching apparatus of tray for work pieces according to claim 1, it is characterized in that, described step bolt device (50) is by a left side, right steps (18A, 18B), before, end blocking (25,26), fulcrum (24), drag hook (17), positioning sleeve (14), cover plate (28), locating shaft (15), stage clip (27) is formed, positioning sleeve (14) is fixed on rotating disk (30,31) on, live in the positioning sleeve (14) and join locating shaft (15), be provided with stage clip (27) between locating shaft (15) convex platform and the positioning sleeve cover plate (28), locating shaft (15) lower end is provided with sender piece (16), be provided with sender piece (16) corresponding section and be fixed on base (5,8) travel switch (LS13 on, LS14), a locating shaft (15) and a left side, right steps (18A, 18B) between by drag hook (17) and be installed on the fulcrum (24) before, end blocking (25,26) flexibly connects.

4. oscillating arm type automatic switching apparatus of tray for work pieces according to claim 1, it is characterized in that, described interlock (60) is by rod-pulling type oil cylinder (22), the table top positioning sleeve (20) of table top locating shaft (19) is housed, pushing block (21,23), stage clip (51) is formed, rod-pulling type oil cylinder (22) level is installed in a left side, right base (5,8) on, be fixedly connected with pushing block (21 on the shaft of oil cylinder (22) two ends, 23), pushing block (21,23) be provided with an inclined-plane below, the table top locating shaft (19) that matches with pushing block (21,23) inclined-plane is provided with elongated slot, the elongated slot lower surface is curved, oil cylinder (22) drawhead is equipped with outward that (LS9, LS10), the table top positioning sleeve is equipped with table top near switch on (20) near switch.

5. oscillating arm type automatic switching apparatus of tray for work pieces according to claim 1, it is characterized in that, described driving plugging pin oil cylinder (40A, 40B) on its piston rod (43) head, outer ring and roll assembly (45) is housed, piston rod (43) two ends are equipped with sender piece (46,47), and oil cylinder cover (44) two ends are separately installed with near switch (LS3, LS4, LS7, LS8).

6. oscillating arm type automatic switching apparatus of tray for work pieces according to claim 1 is characterized in that, worktable lifting oil cylinder (42) and angling cylinder (52) is housed below the described rotary table (53); The outside be provided with position sender switch (LS1, LS2, LS3).