CN204771846U - Hydraulic pressure graduation clamping device - Google Patents

Abstract

The utility model discloses a hydraulic pressure graduation clamping device, its main points are: including fixing base, runner assembly, locating component and hydraulic pressure rotary joint. The runner assembly includes revolving axle, rotary actuator and freewheel clutch. The rotary actuator is fixed to be set up on the lower bedplate of fixing base subassembly. The rotary actuator passes through freewheel clutch drive revolving axle unidirectional rotating. Locating component includes first pneumatic cylinder. First pneumatic cylinder sets up on the well bedplate of fixing base subassembly by its cylinder body is fixed, and the location hydraulic stem of first pneumatic cylinder makes progress in the protractile outside the bedplate to in inserting the corresponding pedestal locating hole of the mount pad portion of the revolving axle of runner assembly, the revolving axle rotates when being used for preventing to process the operation. The fixing base sets up on the right -hand member of lathe main shaft mount pad by its disc connecting portion are fixed, and hydraulic pressure rotary joint sets up on the left end of lathe main shaft mount pad. Each corresponding oil -out of hydraulic pressure rotary joint is linked together through corresponding pipeline and rotary actuator and first pneumatic cylinder.

Description

A kind of hydraulic indexing clamping device

Technical field

The utility model belongs to machining equipment technical field, is specifically related to a kind of hydraulic indexing clamping device.

Background technology

At present; in the process of machine components; often can run into the first-class part of each kind valve body, threeway or four-way pipe connector and need multiaspect transposition, multistage manufacturing processes; if use common clamping chuck; clamping is reorientated after not only needing parking; working (machining) efficiency is reduced greatly, also can cannot ensure the position degree requirement of the working position on each surface due to twice location, thus reduce the qualification rate of product.There are the fixtures such as hydraulic clamp that the higher mechanical processing machine of some automaticities uses or pneumatic pinch, when the not coplanar of same workpiece being added to man-hour, only in process, indexing need be carried out to workpiece.Some can indexing fixture adopt stepper motor location, not only cost is high, and cannot be used for pivotal occasion of moving.Some can indexing fixture adopt rotary fluid motor rotate, being located by alignment pin, then needing 4 spacing hydraulic means as carried out 90 degree of calibration, then need 8 spacing hydraulic indexing devices as carried out 45 degree of calibration, complex structure, cost is higher.Some the fixture of indexing can adopt manual calibration, and be not useable on moving component, efficiency is lower.

Utility model content

It is simple that the purpose of this utility model is to provide a kind of structure, the hydraulic indexing clamping device that accurate positioning firmly can not be stopped.

The basic technical scheme realizing the utility model object is: a kind of hydraulic indexing clamping device, and its design feature is: comprise holder, runner assembly, positioning component and hydraulic rotary joint.Holder comprises disk connecting portion, middle seat board and lower seat board.The axis of disk connecting portion is along left and right to being horizontally disposed with.Disk connecting portion is provided with opening location taper hole left.Disk connecting portion central authorities are provided with the first oil pipe hole run through about it.Dust protection rubber circle is provided with in first oil pipe hole.Middle seat board is horizontally set in the lower right side of disk connecting portion.The left part of middle seat board is provided with and runs through its 3rd upper and lower oil pipe hole.Lower seat board is horizontally set in the lower right side of disk connecting portion, is arranged in the below of seat board.The left part of lower seat board is provided with and runs through its 4th upper and lower oil pipe hole.

Runner assembly comprises gyroaxis, oscillating motor and freewheel clutch.Gyroaxis is steel integral piece, and gyroaxis is divided into mount pad portion, bearing support part, fixed installation portion and driving section from top to bottom successively.Mount pad portion is cylindrical, and mount pad portion is provided with the workpiece fixing threaded hole of 2 opening upwards.Mount pad portion circumferentially at equal intervals angle be provided with 2 to 24 pedestal locating holes that Open Side Down.Mount pad portion is also provided with the Workpiece fixing pin-and-hole of 2 opening upwards, is equipped with 1 corresponding Workpiece fixing pin in 2 Workpiece fixing pin-and-holes.Fixed installation portion is provided with external screw thread.Gyroaxis is arranged in holder assembly on seat board by its bearing support part by 2 the single-row angular contact thrust ball bearings rotations coaxially arranged successively from top to bottom, and mount pad portion is arranged in the top of seat board.Little round nut screws on the external screw thread in fixed installation portion, and is fixedly clamped on seat board by the single-row angular contact thrust ball bearing being arranged in below by corresponding pad.Oscillating motor is fixedly installed on the lower seat board of holder assembly.Oscillating motor drives gyroaxis one-directional rotation by freewheel clutch.

Positioning component comprises the first hydraulic cylinder.First hydraulic cylinder to be fixedly installed in holder assembly on seat board by its cylinder body, the positioning hydraulic bar of the first hydraulic cylinder is upwards outside extended middle seat board, and insert in the corresponding pedestal locating hole in the mount pad portion of the gyroaxis of runner assembly, during for preventing from processing operation, gyroaxis rotates.

Holder is fixedly installed on the right-hand member of machine tool chief axis mount pad by its disk connecting portion, and hydraulic rotary joint is arranged on the left end of machine tool chief axis mount pad.The each corresponding oil-out of hydraulic rotary joint is connected with the first hydraulic cylinder with oscillating motor by corresponding pipeline.

Technical scheme based on above-mentioned basic technical scheme is: the driving section of the gyroaxis of runner assembly is provided with spline.Oscillating motor comprises cylinder body, upper end cover, bottom end cover, armature spindle, upper lining, lower lining, rotor cover, stator block and blade.Oscillating motor is fixedly installed on the lower seat board of holder assembly by its upper end cover, and bottom end cover is fixedly installed on upper end cover, and cylinder body is clamped sealing and is fixed between upper end cover and bottom end cover.Be provided with the first oil-in on rear side of cylinder body left part, on front side of cylinder body left part, be provided with the second oil-in.Armature spindle lower end is rotated by lower lining and is arranged on the upside of bottom end cover.Overlap transmission by the upper part that lining rotation is arranged in upper end cover, armature spindle is arranged in cylinder body by spline and rotor in the middle part of armature spindle to coordinate.The upper end of armature spindle is provided with connecting screw hole.The upper right of armature spindle is also provided with keyway.Stator block is fixedly connected with cylinder body with hold-down nut by corresponding stator block alignment pin, and stator block is between the left part and the left part of the second oil-in of the first oil-in.Blade is fixedly connected with rotor cover with hold-down nut by corresponding blade alignment pin, and blade is between the right part and the right part of the second oil-in of the first oil-in.

The inner ring of freewheel clutch is by being arranged on the first key in the keyway of armature spindle and armature spindle is in transmission connection.The inner ring of freewheel clutch is by screwing attachment screw in the connecting screw hole of armature spindle upper end and corresponding first back-up ring is fixedly installed on the top of armature spindle.The outer ring of freewheel clutch is provided with the splined hole matched with the spline of gyroaxis, thus the outer ring of freewheel clutch and gyroaxis are in transmission connection.

Technical scheme based on above-mentioned appropriate technical solution is: the first hydraulic cylinder of positioning component is single-acting formula hydraulic cylinder, by the Compress Spring be arranged on wherein, positioning hydraulic bar is retracted.

Technical scheme based on above-mentioned appropriate technical solution is: also comprise lower cover assembly.Lower cover assembly comprises arc lower cover, bottom right shrouding, front middle connecting plate, rear middle connecting plate, front lower connecting plate and rear lower connecting plate.Arcuately, arc lower cover is fixedly installed on the arc-shaped side of bottom right shrouding along upper along the arc welding of bottom right shrouding to bottom right shrouding.In front, connecting plate is horizontally disposed with, and front middle connecting plate is by being weldingly fixed on the upper edge, front end of arc lower cover on front side of it, and front middle connecting plate is by the anterior appropriate section in the left side being weldingly fixed on bottom right shrouding on the right side of it.In rear, connecting plate is horizontally disposed with, and rear middle connecting plate is by being weldingly fixed on the upper edge, rear end of arc lower cover on rear side of it, rear middle connecting plate is by being weldingly fixed on the right side of it in left back appropriate section of bottom right shrouding.Front lower connecting plate is horizontally disposed with, and front lower connecting plate is by being weldingly fixed in the anterior appropriate section of arc lower cover on front side of it, and front lower connecting plate is by the anterior appropriate section in the left side being weldingly fixed on bottom right shrouding on the right side of it.Rear lower connecting plate is horizontally disposed with, and rear lower connecting plate is by being weldingly fixed in the rear portion appropriate section of arc lower cover on rear side of it, rear lower connecting plate is by being weldingly fixed on the right side of it in left back appropriate section of bottom right shrouding.Arc lower cover left part lower end is fixedly installed on by screw in the bottom appropriate section of the disk connecting portion of holder.Shrouding top, bottom right is fixedly installed on by screw on the right-hand member of seat board in holder, be fixedly installed on the right-hand member of lower seat board of holder by screw in the middle part of the shrouding of bottom right, thus the bottom appropriate section of the disk connecting portion of holder, middle seat board, lower seat board, the appropriate section of arc lower cover, bottom right shrouding, corresponding second cavity is formed between connecting plate and rear middle connecting plate in front, the bottom appropriate section of the disk connecting portion of holder, lower seat board, the appropriate section of arc lower cover, bottom right shrouding, corresponding 3rd cavity is formed between front lower connecting plate and rear lower connecting plate.

The utility model has positive effect: (1) hydraulic indexing clamping device of the present utility model structure is simple, parking is not needed to reorientate clamping workpiece to be processed, automatically calibration and location can be carried out in main shaft high speed turning course, and accurate positioning is firm, not only greatly improve working (machining) efficiency, and the position degree requirement of each working position can also be ensured, product percent of pass is also greatly improved.

(2) runner assembly of hydraulic indexing clamping device of the present utility model is provided with freewheel clutch for controlling the rotation of gyroaxis one direction.The gyroaxis of runner assembly is rotated by 2 single-row angular contact thrust ball bearings and is arranged in holder assembly on seat board, can bear larger axial force and certain radial load, compact conformation, easy for installation, uses reliable.

(3) the utility model is provided with anti-rotation assembly, thus the angle that hydraulic indexing clamping device of the present utility model can also be used for indexing is the quick transposition processing of the workpiece to be processed of the integral multiple of the pendulum angle of oscillating motor.When processing one side, when needing processing another side, the angle of indexing is several times of the pendulum angle of oscillating motor, and the armature spindle of oscillating motor just swings corresponding number of times.First, the positioning hydraulic bar of the first hydraulic cylinder of positioning component is retracted, after oscillating motor drives the corresponding angle of gyroaxis one-directional rotation by freewheel clutch, the outer ring of freewheel clutch is withstood by the anti-rotation steel ball of anti-rotation assembly, oscillating motor swings after resetting again, until when swinging to next to be processed of workpiece to be processed, in the mount pad portion that the positioning hydraulic bar of the first hydraulic cylinder of positioning component inserts gyroaxis again in corresponding pedestal locating hole, now can process accordingly, greatly improve the speed of indexing, production and processing efficiency is further enhanced.

(4) hydraulic indexing clamping device of the present utility model is provided with positioning component, for the location of the gyroaxis after calibration, ensure that the accurate location after gyroaxis rotation and reliable location.

(5) workpiece to be processed of the present utility model passes through Workpiece fixing finger setting in the mount pad portion of the gyroaxis of runner assembly, gyroaxis is provided with workpiece fixing threaded hole, namely workpiece to be processed can be fixed on gyroaxis by trip bolt, also can only be fixed on gyroaxis by holding down assembly.When being fixed on gyroaxis by holding down assembly, being conducive to the quick-replaceable of workpiece to be processed, further increasing production and processing efficiency, and the holding down assembly of hydraulic indexing clamping device, with hydraulic cylinder clamping, clamping force is large, reliable operation.Thrust ball bearing is adopted to bear axial force, easily reliable during workpiece calibration revolution operation.

(6) the first hydraulic cylinder of the positioning component of hydraulic indexing clamping device of the present utility model is single-acting formula hydraulic cylinder with the second hydraulic cylinder held down assembly, compare the oil pipe quantity that double-acting type hydraulic cylinder decreases turnover oil, structure is simple, easy for installation, avoids and rotates and install difficulty.

(7) hydraulic indexing clamping device of the present utility model full-automatic, high efficiency processing can have the part such as each kind valve body, crosshead, threeway (four-way) pipe joint that decile angle is the integral multiple of this fixture pendulum angle, can be used for all kinds of numerically controlled lathe, production efficiency can improve 3 to 5 times.Conventional automatic dividing attachment has 45 ° of auto-increment calibration, is respectively 45 °, 90 °, 135 °, 180 °, 225 °, 270 ° and 315 ° of calibration; Also can adopt 30 ° of auto-increment calibration, be respectively 30 °, 60 °, 90 °, 120 °, 150 °, 180 °, 210 °, 240 °, 270 °, 300 ° and 330 ° of calibration etc.

(8) novel structure of hydraulic indexing clamping device of the present utility model, clamped one time, automatic indexing, workpiece multiaspect is replaced, multistage manufacturing processes, by the difform requirement of workpiece, can also be designed to 60 °, 90 °, 180 ° equal angular decile automatic rotation calibration, be not only applicable to automatic lathe, after changing a little, milling machine and grinding machine can also be applied to.

(9) runner assembly of the present utility model, positioning component and holding down assembly all is arranged in the corresponding cavity that holder, upper cover plate assembly and lower cover assembly formed; there is dustproof effect; protect runner assembly, positioning component and hold down assembly and do not damage by the intrusion of machining chips, dust protection rubber circle can prevent chip from invading in main shaft inner chamber.

Accompanying drawing explanation

Fig. 1 is the structural representation of hydraulic indexing clamping device of the present utility model;

Fig. 2 is the schematic diagram after the right view after Fig. 1 removes cover plate assembly amplifies;

Fig. 3 is the schematic diagram of the holder in Fig. 1;

Fig. 4 is the schematic top plan view of Fig. 3;

Fig. 5 is the schematic diagram of the upper cover plate assembly in Fig. 1;

Fig. 6 is that schematic diagram is looked on the right side of Fig. 5;

Fig. 7 is the schematic diagram of the lower cover assembly in Fig. 1;

Fig. 8 is that schematic diagram is looked on the right side of Fig. 7;

Fig. 9 is the structural representation after the gyroaxis of runner assembly in Fig. 1 amplifies;

Figure 10 is the A-A cross-sectional schematic in Fig. 9;

Figure 11 is the schematic top plan view of Figure 10;

Figure 12 is the syndeton schematic diagram of the structural representation after the runner assembly in Fig. 1 amplifies and the lower seat board with holder;

Figure 13 is the elevational schematic view of the runner assembly in Figure 12;

Figure 14 is the B-B cross-sectional schematic in Figure 12;

Figure 15 is the schematic diagram after the stator block of oscillating motor in Figure 14 amplifies;

Figure 16 is that schematic diagram is looked on a left side of Figure 15;

Figure 17 is the schematic diagram after the blade of oscillating motor in Figure 14 amplifies;

Figure 18 is that schematic diagram is looked on the right side of Figure 17;

Figure 19 is the schematic diagram after the rotor cover of oscillating motor in Figure 14 amplifies;

Figure 20 is that schematic diagram is looked on the right side of Figure 19;

Figure 21 is the schematic diagram after the armature spindle of oscillating motor in Figure 14 amplifies;

Figure 22 is the schematic top plan view of Figure 21;

Figure 23 is the C-C cross-sectional schematic in Figure 12;

Figure 24 is the elevational schematic view of the overcoat of freewheel clutch in Figure 23;

Figure 25 is the structure for amplifying schematic diagram of the anti-rotation assembly in Figure 12;

Figure 26 is the I place enlarged diagram in Fig. 1;

Figure 27 is the II place enlarged diagram in Fig. 1.

Mark in above-mentioned accompanying drawing is as follows:

Holder 1, disk connecting portion 1-1, location taper hole 1-1-1, the first oil pipe hole 1-1-2, upper base plate 1-2, the second oil pipe hole 1-2-1, middle seat board 1-3, the 3rd oil pipe hole 1-3-1, lower seat board 1-4, the 4th oil pipe hole 1-4-1, dust protection rubber circle 1-5,

Upper cover plate assembly 2, arc upper cover plate 2-1, upper right shrouding 2-2, front upper junction plate 2-3, rear upper junction plate 2-4,

Lower cover assembly 3, arc lower cover 3-1, bottom right shrouding 3-2, front middle connecting plate 3-3, rear middle connecting plate 3-4, front lower connecting plate 3-5, rear lower connecting plate 3-6,

Runner assembly 4, gyroaxis 4-1, mount pad portion 4-1-1, workpiece fixing threaded hole 4-1-1a, pedestal locating hole 4-1-1b, Workpiece fixing pin-and-hole 4-1-1c, bearing support part 4-1-2, fixed installation portion 4-1-3, driving section 4-1-4, spline 4-1-4a,

Oscillating motor 4-2, cylinder body 4-2-1, the first oil-in 4-2-1a, second oil-in 4-2-1b, upper end cover 4-2-2, bottom end cover 4-2-3, armature spindle 4-2-4, connecting screw hole 4-2-4a, keyway 4-2-4b, upper lining 4-2-5, lower lining 4-2-6, rotor cover 4-2-7, stator block 4-2-8, stator block alignment pin 4-2-8a, blade 4-2-9, blade alignment pin 4-2-9a

Freewheel clutch 4-3, inner ring 4-3-1, outer ring 4-3-2, splined hole 4-3-2a,

Anti-rotation assembly 4-4, mount pad 4-4-1, shoulder hole 4-4-1a, Compress Spring 4-4-2, anti-rotation steel ball 4-4-3, plug screw 4-4-4,

Workpiece fixing pin 4-5,

Positioning component 5, the first hydraulic cylinder 5-1, positioning hydraulic bar 5-1-1,

Hold down assembly the 6, second hydraulic cylinder 6-1, compresses hydraulic stem 6-1-1, thrust ball bearing 6-2, compression plate 6-3,

Hydraulic rotary joint 7, the first pipeline 7-1, the second pipeline 7-2, the 3rd pipeline 7-3, the 4th pipeline 7-4,

First cavity 8-1, the second cavity 8-2, the 3rd cavity 8-3,

Single-row angular contact thrust ball bearing 9-1, little round nut 9-2, pad 9-3,

First key 10-1,

Machine tool chief axis mount pad 100,

Workpiece to be processed 200.

Detailed description of the invention

The description in orientation of the present utility model is carried out according to the orientation shown in Fig. 1, and also namely the direction up and down shown in Fig. 1 is the direction up and down of description, and a side of court of Fig. 1 institute is front, and the side deviating from Fig. 1 is rear.

(embodiment 1)

See Fig. 1 and Fig. 2, hydraulic indexing clamping device of the present utility model comprises holder 1, upper cover plate assembly 2, lower cover assembly 3, runner assembly 4, positioning component 5, hold down assembly 6 and hydraulic rotary joint 7.

See Fig. 1 to Fig. 4, holder 1 is steel integral piece.Holder 1 comprises disk connecting portion 1-1, upper base plate 1-2, middle seat board 1-3 and lower seat board 1-4.The axis of disk connecting portion 1-1 is along left and right to being horizontally disposed with.Disk connecting portion 1-1 is provided with opening location taper hole 1-1-1 left.Disk connecting portion 1-1 central authorities are provided with the first oil pipe hole 1-1-2 run through about it.Dust protection rubber circle 1-5 is provided with in first oil pipe hole 1-1-2.Upper base plate 1-2 is horizontally set in the right upper portion of disk connecting portion 1-1.The left part of upper base plate 1-2 is provided with and runs through its second upper and lower oil pipe hole 1-2-1.Middle seat board 1-3 is horizontally set in the lower right side of disk connecting portion 1-1.The left part of middle seat board 1-3 is provided with and runs through its 3rd upper and lower oil pipe hole 1-3-1.Lower seat board 1-4 is horizontally set in the lower right side of disk connecting portion 1-1, is arranged in the below of seat board 1-3.The left part of lower seat board 1-4 is provided with and runs through its 4th upper and lower oil pipe hole 1-4-1.

See Fig. 1, Fig. 5 and Fig. 6, upper cover plate assembly 2 comprises arc upper cover plate 2-1, upper right shrouding 2-2, front upper junction plate 2-3 and rear upper junction plate 2-4.Arcuately, arc upper cover plate 2-1 is fixedly installed on the arc-shaped side of upper right shrouding 2-2 along upper along the arc welding of upper right shrouding 2-2 to upper right shrouding 2-2.Front upper junction plate 2-3 is horizontally disposed with, and front upper junction plate 2-3 is by being weldingly fixed on the lower edge, front end of arc upper cover plate 2-1 on front side of it, and front upper junction plate 2-3 is by the anterior appropriate section in the left side being weldingly fixed on upper right shrouding 2-2 on the right side of it.Rear upper junction plate 2-4 is horizontally disposed with, and rear upper junction plate 2-4 is by being weldingly fixed on the lower edge, rear end of arc upper cover plate 2-1 on rear side of it, rear upper junction plate 2-4 is by being weldingly fixed on the right side of it in left back appropriate section of upper right shrouding 2-2.Arc upper cover plate 2-1 left part upper end is fixedly installed in the top appropriate section of disk connecting portion 1-1 of holder 1 by screw.Upper right shrouding 2-2 bottom is fixedly installed on the right-hand member of upper base plate 1-2 of holder 1 by screw, thus the top of the disk connecting portion 1-1 of holder 1, upper base plate 1-2, arc upper cover plate 2-1, upper right shrouding 2-2, forms corresponding first cavity 8-1 between front upper junction plate 2-3 and rear upper junction plate 2-4.

See Fig. 1, Fig. 7 and Fig. 8, lower cover assembly 3 comprises arc lower cover 3-1, bottom right shrouding 3-2, front middle connecting plate 3-3, rear middle connecting plate 3-4, front lower connecting plate 3-5 and rear lower connecting plate 3-6.Arcuately, arc lower cover 3-1 is fixedly installed on the arc-shaped side of bottom right shrouding 3-2 along upper along the arc welding of bottom right shrouding 3-2 to bottom right shrouding 3-2.In front, connecting plate 3-3 is horizontally disposed with, and front middle connecting plate 3-3 is by being weldingly fixed on the upper edge, front end of arc lower cover 3-1 on front side of it, and front middle connecting plate 3-3 is by the anterior appropriate section in the left side being weldingly fixed on bottom right shrouding 3-2 on the right side of it.In rear, connecting plate 3-4 is horizontally disposed with, and rear middle connecting plate 3-4 is by being weldingly fixed on the upper edge, rear end of arc lower cover 3-1 on rear side of it, rear middle connecting plate 3-4 is by being weldingly fixed on the right side of it in left back appropriate section of bottom right shrouding 3-2.Front lower connecting plate 3-5 is horizontally disposed with, and front lower connecting plate 3-5 is by being weldingly fixed in the anterior appropriate section of arc lower cover 3-1 on front side of it, and front lower connecting plate 3-5 is by the anterior appropriate section in the left side being weldingly fixed on bottom right shrouding 3-2 on the right side of it.Rear lower connecting plate 3-6 is horizontally disposed with, and rear lower connecting plate 3-6 is by being weldingly fixed in the rear portion appropriate section of arc lower cover 3-1 on rear side of it, rear lower connecting plate 3-6 is by being weldingly fixed on the right side of it in left back appropriate section of bottom right shrouding 3-2.Arc lower cover 3-1 left part lower end is fixedly installed in the bottom appropriate section of disk connecting portion 1-1 of holder 1 by screw.Shrouding 3-2 top, bottom right is fixedly installed on by screw on the right-hand member of seat board 1-3 in holder 1, be fixedly installed on the right-hand member of lower seat board 1-4 of holder 1 by screw in the middle part of the shrouding 3-2 of bottom right, thus the bottom appropriate section of the disk connecting portion 1-1 of holder 1, middle seat board 1-3, lower seat board 1-4, the appropriate section of arc lower cover 3-1, bottom right shrouding 3-2, corresponding second cavity 8-2 is formed between connecting plate 3-3 and rear middle connecting plate 3-4 in front, the bottom appropriate section of the disk connecting portion 1-1 of holder 1, lower seat board 1-4, the appropriate section of arc lower cover 3-1, bottom right shrouding 3-2, corresponding 3rd cavity 8-3 is formed between front lower connecting plate 3-5 and rear lower connecting plate 3-6.

See Fig. 1, Fig. 2, Fig. 9 to Figure 24, runner assembly 4 comprises gyroaxis 4-1, oscillating motor 4-2, freewheel clutch 4-3 and anti-rotation assembly 4-4.Gyroaxis 4-1 is steel integral piece, and gyroaxis 4-1 is divided into mount pad portion 4-1-1, bearing support part 4-1-2, fixed installation portion 4-1-3 and driving section 4-1-4 from top to bottom successively.4-1-1 is cylindrical in mount pad portion, and mount pad portion 4-1-1 is provided with the workpiece fixing threaded hole 4-1-1a of 2 opening upwards.Mount pad portion 4-1-1 circumferentially at equal intervals angle be provided with 2 to 24 pedestal locating hole 4-1-1b that Open Side Down, the present embodiment is 4, and its interval angles needs the angle of indexing to select according to workpiece to be processed 200.Mount pad portion 4-1-1 is also provided with the Workpiece fixing pin-and-hole 4-1-1c of 2 opening upwards, 1 corresponding Workpiece fixing pin 4-5 is equipped with in 2 each Workpiece fixing pin-and-hole 4-1-1c, determine workpiece position pin 4-5 and insert respectively on workpiece to be processed 200 in corresponding dowel hole for 2 during use, thus workpiece to be processed 200 to be accurately positioned on gyroaxis 4-1.Fixed installation portion 4-1-3 is provided with external screw thread.Driving section 4-1-4 is provided with spline 4-1-4a.Gyroaxis 4-1 is arranged in holder assembly 1 on seat board 1-3 by its bearing support part 4-1-2 by 2 the single-row angular contact thrust ball bearing 9-1 rotations coaxially arranged successively from top to bottom, and mount pad portion 4-1-1 is arranged in the top of seat board 1-3.Little round nut 9-2 screws on the external screw thread of fixed installation portion 4-1-3, and is fixedly clamped on seat board 1-3 by the single-row angular contact thrust ball bearing 9-1 being arranged in below by corresponding pad 9-3.Oscillating motor 4-2 comprises cylinder body 4-2-1, upper end cover 4-2-2, bottom end cover 4-2-3, armature spindle 4-2-4, upper lining 4-2-5, lower lining 4-2-6, rotor cover 4-2-7, stator block 4-2-8 and blade 4-2-9.Oscillating motor 4-2 is fixedly installed on the lower seat board 1-4 of holder assembly 1 by its upper end cover 4-2-2, and bottom end cover 4-2-3 is fixedly installed on upper end cover 4-2-2, and cylinder body 4-2-1 is clamped sealing and is fixed between upper end cover 4-2-2 and bottom end cover 4-2-3.Be provided with the first oil-in 4-2-1a on rear side of cylinder body 4-2-1 left part, on front side of cylinder body 4-2-1 left part, be provided with the second oil-in 4-2-1b.Armature spindle 4-2-4 lower end is rotated by lower lining 4-2-6 and is arranged on the upside of bottom end cover 4-2-3; Overlap 4-2-7 transmission by the upper part that lining 4-2-5 rotation is arranged in upper end cover 4-2-2, armature spindle 4-2-4 is arranged in cylinder body 4-2-1 by spline and rotor in the middle part of armature spindle 4-2-4 to coordinate.The upper end of armature spindle 4-2-4 is provided with connecting screw hole 4-2-4a.The upper right of armature spindle 4-2-4 is also provided with keyway 4-2-4b.Stator block 4-2-8 is fixedly connected with cylinder body 4-2-1 with hold-down nut by corresponding stator block alignment pin 4-2-8a, and stator block 4-2-8 is between the left part and the left part of the second oil-in 4-2-1b of the first oil-in 4-2-1a.Blade 4-2-9 overlaps 4-2-7 by corresponding blade alignment pin 4-2-9a with hold-down nut and rotor and is fixedly connected with, and blade 4-2-9 is between the right part and the right part of the second oil-in 4-2-1b of the first oil-in 4-2-1a, with the axis of armature spindle for axle pivot.The number of degrees of the arc angle α of stator block 4-2-8 can be arranged as required, thus the rotor cover 4-2-7 rotor driven axle 4-2-4 of oscillating motor 4-2 can be made to rotate certain corresponding angle.

Freewheel clutch 4-3 adopts roller-type overrunning clutch, and the inner ring 4-3-1 of freewheel clutch 4-3 is in transmission connection by being arranged on the first key 10-1 in the keyway 4-2-4b of armature spindle 4-2-4 and armature spindle 4-2-4.The inner ring 4-3-1 of freewheel clutch 4-3 is by screwing attachment screw in the connecting screw hole 4-2-4a of armature spindle 4-2-4 upper end and corresponding first back-up ring 10-2 is fixedly installed on the top of armature spindle 4-2-4.The outer ring 4-3-2 of freewheel clutch 4-3 is provided with the splined hole 4-3-2a matched with the spline 4-1-4a of gyroaxis 4-1, thus the outer ring 4-3-2 of freewheel clutch 4-3 and gyroaxis 4-1 is in transmission connection.

Anti-rotation assembly 4-4 has 1 to 4 group, and the present embodiment is 2 groups.2 groups of anti-rotation assembly 4-4 along gyroaxis 4-1 circumference at equal intervals angle be arranged on the upside of lower seat board 1-4 of holder 1.2 groups of anti-rotation assembly 4-4 include mount pad 4-4-1, Compress Spring 4-4-2, anti-rotation steel ball 4-4-3 and plug screw 4-4-4.Mount pad 4-4-1 interference fit is arranged on lower seat board 1-4.Mount pad 4-4-1 is provided with and runs through its upper and lower shoulder hole 4-4-1a, and the diameter of superposed hole section is less than the diameter of the hole section being positioned at bottom.The sphere diameter of anti-rotation steel ball 4-4-3 is corresponding with the diameter being positioned at the hole section of bottom of the shoulder hole 4-4-1a of mount pad 4-4-1, the sphere diameter of anti-rotation steel ball 4-4-3 is greater than the diameter of the superposed hole section of the shoulder hole 4-4-1a of mount pad 4-4-1, and anti-rotation steel ball 4-4-3 upwards exposes outside mount pad 4-4-1.The bottom being positioned at the hole section of bottom of the shoulder hole 4-4-1a of mount pad 4-4-1 is provided with internal thread, plug screw 4-4-4 screws on this internal thread, Compress Spring 4-4-2 is arranged between anti-rotation steel ball 4-4-3 and plug screw 4-4-4, be in compressive state, for upwards being held out against by anti-rotation steel ball 4-4-3, the top appropriate section of anti-rotation steel ball 4-4-3 is exposed outside mount pad 4-4-1.Anti-rotation steel ball 4-4-3 withstands the outer ring 4-3-2 of freewheel clutch 4-3 from bottom to top, can not turn round after rotation for keeping the outer ring 4-3-2 of freewheel clutch 4-3.

See Fig. 1 and Figure 27, positioning component 5 comprises the first hydraulic cylinder 5-1.First hydraulic cylinder 5-1 is single-acting formula hydraulic cylinder, by the Compress Spring be arranged on wherein, positioning hydraulic bar 5-1-1 is retracted.First hydraulic cylinder 5-1 to be fixedly installed in holder assembly 1 on seat board 1-3 by its cylinder body, the positioning hydraulic bar 5-1-1 of the first hydraulic cylinder 5-1 is upwards outside extended middle seat board 1-3, insert in the corresponding pedestal locating hole 4-1-1b of the mount pad portion 4-1-1 of the gyroaxis 4-1 of runner assembly 4, during for preventing from processing operation, gyroaxis 4-1 rotates, and greatly improves machining accuracy.

See Fig. 1, Fig. 2 and Figure 26, holding down assembly 6 comprises the second hydraulic cylinder 6-1, thrust ball bearing 6-2 and compression plate 6-3.Second hydraulic cylinder 6-1 is single-acting formula hydraulic cylinder, by the Compress Spring be arranged on wherein, compression hydraulic stem 6-1-1 is retracted.Second hydraulic cylinder 6-1 is fixedly installed on the upper base plate 1-2 of holder assembly 1 by its cylinder body, and the cylinder body of the second hydraulic cylinder 6-1 is arranged in the first cavity 8-1, and the compression hydraulic stem 6-1-1 of the second hydraulic cylinder 6-1 stretches out downwards outside upper base plate 1-2.Compression plate 6-3 is arranged on the compression hydraulic stem 6-1-1 of the second hydraulic cylinder 6-1 by thrust ball bearing 6-2 coaxial rotation.The compression hydraulic stem 6-1-1 of the second hydraulic cylinder 6-1 and the gyroaxis 4-1 of runner assembly 4 is coaxially arranged.

See Fig. 1, holder 1 is coaxially fixedly installed on the right-hand member of machine tool chief axis mount pad 100 by its disk connecting portion 1-1, and hydraulic rotary joint 7 is coaxially arranged on the left end of machine tool chief axis mount pad 100.

One end of first pipeline 7-1 is communicated with the first oil-out of hydraulic rotary joint 7 is airtight, and the other end passes successively by being communicated with the first oil-in 4-2-1a on the cylinder body 4-2-1 of the oscillating motor 4-2 of runner assembly 4 is airtight after the dust protection rubber circle 1-5 in the first oil pipe hole 1-1-2 of the center through hole of machine tool chief axis mount pad 100, the disk connecting portion 1-1 of holder 1, the 3rd oil pipe hole 1-3-1 of middle seat board 1-3 and the 4th oil pipe hole 1-4-1 of lower seat board 1-4.

One end of second pipeline 7-2 is communicated with the second oil-out of hydraulic rotary joint 7 is airtight, and the other end passes successively by being communicated with the second oil-in 4-2-1b on the cylinder body 4-2-1 of the oscillating motor 4-2 of runner assembly 4 is airtight after the dust protection rubber circle 1-5 in the first oil pipe hole 1-1-2 of the center through hole of machine tool chief axis mount pad 100, the disk connecting portion 1-1 of holder 1, the 3rd oil pipe hole 1-3-1 of middle seat board 1-3 and the 4th oil pipe hole 1-4-1 of lower seat board 1-4.

One end of 3rd pipeline 7-3 is communicated with the 3rd oil-out of hydraulic rotary joint 7 is airtight, and the other end is communicated with the oil-in of the first hydraulic cylinder 5-1 of positioning component 5 is airtight through by after the dust protection rubber circle 1-5 in the first oil pipe hole 1-1-2 of the center through hole of machine tool chief axis mount pad 100, the disk connecting portion 1-1 of holder 1 and the 3rd oil pipe hole 1-3-1 of middle seat board 1-3 successively.

One end of 4th pipeline 7-4 is communicated with the first oil-out of hydraulic rotary joint 7 is airtight, the other end successively through by after the dust protection rubber circle 1-5 in the first oil pipe hole 1-1-2 of the center through hole of machine tool chief axis mount pad 100, the disk connecting portion 1-1 of holder 1 and the second oil pipe hole 1-2-1 of upper base plate 1-2 with hold down assembly 6 the oil-in of the second hydraulic cylinder 6-1 to be airtightly communicated with.

When hydraulic indexing clamping device of the present utility model uses, the pendulum angle of oscillating motor 4-2 can follow the angle according to indexing to need to select.Workpiece to be processed 200 is positioned on the mount pad portion 4-1-1 of the gyroaxis 4-1 of runner assembly 4 by Workpiece fixing pin 4-5, then 6 to be fixed on gyroaxis 4-1 by trip bolt or hold down assembly.On the mount pad portion 4-1-1 of the positioning hydraulic bar 5-1-1 insertion gyroaxis 4-1 of the first hydraulic cylinder 5-1 of positioning component 5 in a corresponding pedestal locating hole 4-1-1b, thus gyroaxis 4-1 is positioned guarantee to add man-hour gyroaxis 4-1 and can not rotate, ensure machining accuracy.When processing one side, when needing processing another side, the positioning hydraulic bar 5-1-1 of the first hydraulic cylinder 5-1 of positioning component 5 retracts, the blade 4-2-9 rotor driven cover 4-2-7 of oscillating motor 4-2 rotates, rotated by rotor cover 4-2-7 rotor driven axle 4-2-4, armature spindle 4-2-4 drives the inner ring 4-3-1 of freewheel clutch 4-3 to rotate by the first key 10-1, inner ring 4-3-1 drives outer ring 4-3-2 to rotate by roller, after outer ring 4-3-2 drives gyroaxis 4-1 to rotate corresponding angle, on the mount pad portion 4-1-1 that the positioning hydraulic bar 5-1-1 of the first hydraulic cylinder 5-1 of positioning component 5 inserts gyroaxis 4-1 again in corresponding pedestal locating hole 4-1-1b, now can process accordingly.The workpiece to be processed 200 of hydraulic indexing clamping device of the present utility model, when changing machined surface, is reorientated clamping after not needing parking, is greatly improved production and processing efficiency.

The angle that hydraulic indexing clamping device of the present utility model can also be used for indexing is the processing of the workpiece to be processed 200 of the integral multiple of the pendulum angle of oscillating motor 4-2.When processing one side, when needing processing another side, the angle of indexing is several times of the pendulum angle of oscillating motor 4-2, and the armature spindle 4-2-4 of oscillating motor 4-2 just swings corresponding number of times.First, the positioning hydraulic bar 5-1-1 of the first hydraulic cylinder 5-1 of positioning component 5 retracts, the blade 4-2-9 rotor driven cover 4-2-7 of oscillating motor 4-2 rotates, rotated by rotor cover 4-2-7 rotor driven axle 4-2-4, armature spindle 4-2-4 drives the inner ring 4-3-1 of freewheel clutch 4-3 to rotate by the first key 10-1, inner ring 4-3-1 drives outer ring 4-3-2 to rotate by roller, after outer ring 4-3-2 drives gyroaxis 4-1 to rotate corresponding angle, when the blade 4-2-9 of oscillating motor 4-2 swings back original position, freewheel clutch 4-3 reversely rotates, inner ring 4-3-1 and the outer ring 4-3-2 of freewheel clutch 4-3 are in released state, the moment of torsion rotated can not be delivered to outer ring 4-3-2 from inner ring 4-3-1, so oscillating motor 4-2 returns, the outer ring 4-3-2 of freewheel clutch 4-3 withstands by the anti-rotation steel ball 4-4-3 of anti-rotation assembly 4-4, thus gyroaxis 4-1 stays original position, the position location of gyroaxis 4-1 will be moved because of vibration when rotating, above action repeatedly, again swing after the armature spindle 4-2-4 of oscillating motor 4-2 is resetted, until when swinging to next to be processed of workpiece to be processed 200, on the mount pad portion 4-1-1 that the positioning hydraulic bar 5-1-1 of the first hydraulic cylinder 5-1 of positioning component 5 inserts gyroaxis 4-1 again in corresponding pedestal locating hole 4-1-1b, just can realize the fast rotational location of pendulum angle integral multiple, now can process accordingly.

Above embodiment is only for illustration of the utility model; but not to restriction of the present utility model; person skilled in the relevant technique is not when departing from spirit and scope of the present utility model; various conversion and change can also be made; can also transform accordingly according to the inspiration of above-described embodiment in embody rule process, therefore all equivalent technical schemes all should be included within scope of patent protection of the present utility model.

Claims (4)

1. a hydraulic indexing clamping device, is characterized in that: comprise holder (1), runner assembly (4), positioning component (5) and hydraulic rotary joint (7); Holder (1) comprises disk connecting portion (1-1), middle seat board (1-3) and lower seat board (1-4); The axis of disk connecting portion (1-1) is along left and right to being horizontally disposed with; Disk connecting portion (1-1) is provided with opening location taper hole (1-1-1) left; Disk connecting portion (1-1) central authorities are provided with the first oil pipe hole (1-1-2) run through about it; Dust protection rubber circle (1-5) is provided with in first oil pipe hole (1-1-2); Middle seat board (1-3) is horizontally set in the lower right side of disk connecting portion (1-1); The left part of middle seat board (1-3) is provided with and runs through its 3rd upper and lower oil pipe hole (1-3-1); Lower seat board (1-4) is horizontally set in the lower right side of disk connecting portion (1-1), is arranged in the below of seat board (1-3); The left part of lower seat board (1-4) is provided with and runs through its 4th upper and lower oil pipe hole (1-4-1);

Runner assembly (4) comprises gyroaxis (4-1), oscillating motor (4-2) and freewheel clutch (4-3); Gyroaxis (4-1) is steel integral piece, and gyroaxis (4-1) is divided into mount pad portion (4-1-1), bearing support part (4-1-2), fixed installation portion (4-1-3) and driving section (4-1-4) from top to bottom successively; (4-1-1) is cylindrical in mount pad portion, and mount pad portion (4-1-1) is provided with the workpiece fixing threaded hole (4-1-1a) of 2 opening upwards; Mount pad portion (4-1-1) circumferentially at equal intervals angle be provided with 2 to 24 pedestal locating holes (4-1-1b) that Open Side Down; Mount pad portion (4-1-1) is also provided with the Workpiece fixing pin-and-hole (4-1-1c) of 2 opening upwards, is equipped with 1 corresponding Workpiece fixing pin (4-5) in 2 Workpiece fixing pin-and-holes (4-1-1c); (4-1-3) is provided with external screw thread in fixed installation portion; Gyroaxis (4-1) is arranged on the middle seat board (1-3) of holder assembly (1) by its bearing support part (4-1-2) by 2 single-row angular contact thrust ball bearing (9-1) rotations of coaxial setting successively from top to bottom, and mount pad portion (4-1-1) is arranged in the top of seat board (1-3); Little round nut (9-2) screws on the external screw thread of fixed installation portion (4-1-3), and is fixedly clamped by corresponding pad (9-3) on seat board (1-3) by the single-row angular contact thrust ball bearing (9-1) being arranged in below; Oscillating motor (4-2) is fixedly installed on the lower seat board (1-4) of holder assembly (1); Oscillating motor (4-2) drives gyroaxis (4-1) one-directional rotation by freewheel clutch (4-3);

Positioning component (5) comprises the first hydraulic cylinder (5-1); First hydraulic cylinder (5-1) is fixedly installed on the middle seat board (1-3) of holder assembly (1) by its cylinder body, upwards extended middle seat board (1-3) is outward for the positioning hydraulic bar (5-1-1) of the first hydraulic cylinder (5-1), and insert in the corresponding pedestal locating hole (4-1-1b) in the mount pad portion (4-1-1) of the gyroaxis (4-1) of runner assembly (4), during for preventing from processing operation, gyroaxis (4-1) rotates;

Holder (1) is fixedly installed on the right-hand member of machine tool chief axis mount pad (100) by its disk connecting portion (1-1), and hydraulic rotary joint (7) is arranged on the left end of machine tool chief axis mount pad (100); The each corresponding oil-out of hydraulic rotary joint (7) is connected with the first hydraulic cylinder (5-1) with oscillating motor (4-2) by corresponding pipeline.

2. hydraulic indexing clamping device according to claim 1, is characterized in that: the driving section (4-1-4) of the gyroaxis (4-1) of runner assembly (4) is provided with spline (4-1-4a); Oscillating motor (4-2) comprises cylinder body (4-2-1), upper end cover (4-2-2), bottom end cover (4-2-3), armature spindle (4-2-4), upper lining (4-2-5), lower lining (4-2-6), rotor cover (4-2-7), stator block (4-2-8) and blade (4-2-9); Oscillating motor (4-2) is fixedly installed on the lower seat board (1-4) of holder assembly (1) by its upper end cover (4-2-2), bottom end cover (4-2-3) is fixedly installed on upper end cover (4-2-2), and cylinder body (4-2-1) is clamped sealing and is fixed between upper end cover (4-2-2) and bottom end cover (4-2-3); Be provided with the first oil-in (4-2-1a) on rear side of cylinder body (4-2-1) left part, on front side of cylinder body (4-2-1) left part, be provided with the second oil-in (4-2-1b); Armature spindle (4-2-4) lower end is rotated by lower lining (4-2-6) and is arranged in bottom end cover (4-2-3) upside; The part that armature spindle (4-2-4) middle part is arranged in upper end cover (4-2-2) by upper lining (4-2-5) rotation, armature spindle (4-2-4) is arranged in cylinder body (4-2-1) is coordinated with rotor cover (4-2-7) transmission by spline; The upper end of armature spindle (4-2-4) is provided with connecting screw hole (4-2-4a); The upper right of armature spindle (4-2-4) is also provided with keyway (4-2-4b); Stator block (4-2-8) is fixedly connected with cylinder body (4-2-1) with hold-down nut by corresponding stator block alignment pin (4-2-8a), and stator block (4-2-8) is positioned between the left part of the first oil-in (4-2-1a) and the left part of the second oil-in (4-2-1b); Blade (4-2-9) is fixedly connected with rotor cover (4-2-7) with hold-down nut by corresponding blade alignment pin (4-2-9a), and blade (4-2-9) is positioned between the right part of the first oil-in (4-2-1a) and the right part of the second oil-in (4-2-1b);

The inner ring (4-3-1) of freewheel clutch (4-3) is in transmission connection with armature spindle (4-2-4) by the first key (10-1) be arranged in the keyway (4-2-4b) of armature spindle (4-2-4); The inner ring (4-3-1) of freewheel clutch (4-3) is by screwing attachment screw in armature spindle (4-2-4) upper end connecting screw hole (4-2-4a) and corresponding first back-up ring (10-2) is fixedly installed on the top of armature spindle (4-2-4); The outer ring (4-3-2) of freewheel clutch (4-3) is provided with the splined hole (4-3-2a) matched with the spline of gyroaxis (4-1) (4-1-4a), thus the outer ring (4-3-2) of freewheel clutch (4-3) and gyroaxis (4-1) are in transmission connection.

3. hydraulic indexing clamping device according to claim 1, is characterized in that: first hydraulic cylinder (5-1) of positioning component (5) is single-acting formula hydraulic cylinder, by the Compress Spring be arranged on wherein, positioning hydraulic bar (5-1-1) is retracted.

4. according to the hydraulic indexing clamping device one of claims 1 to 3 Suo Shu, it is characterized in that: also comprise lower cover assembly (3), lower cover assembly (3) comprises arc lower cover (3-1), bottom right shrouding (3-2), front middle connecting plate (3-3), rear middle connecting plate (3-4), front lower connecting plate (3-5) and rear lower connecting plate (3-6), arcuately, arc lower cover (3-1) is fixedly installed on the arc-shaped side of bottom right shrouding (3-2) along upper along the arc welding of bottom right shrouding (3-2) to bottom right shrouding (3-2), in front, connecting plate (3-3) is horizontally disposed with, in front, connecting plate (3-3) is by being weldingly fixed on the upper edge, front end of arc lower cover (3-1) on front side of it, and front middle connecting plate (3-3) is by the anterior appropriate section in the left side being weldingly fixed on bottom right shrouding (3-2) on the right side of it, in rear, connecting plate (3-4) is horizontally disposed with, in rear, connecting plate (3-4) is by being weldingly fixed on the upper edge, rear end of arc lower cover (3-1) on rear side of it, and rear middle connecting plate (3-4) is by being weldingly fixed in the left back appropriate section of bottom right shrouding (3-2) on the right side of it, front lower connecting plate (3-5) is horizontally disposed with, front lower connecting plate (3-5) is by being weldingly fixed in the anterior appropriate section of arc lower cover (3-1) on front side of it, and front lower connecting plate (3-5) is by the anterior appropriate section in the left side being weldingly fixed on bottom right shrouding (3-2) on the right side of it, rear lower connecting plate (3-6) is horizontally disposed with, rear lower connecting plate (3-6) is by being weldingly fixed in the rear portion appropriate section of arc lower cover (3-1) on rear side of it, and rear lower connecting plate (3-6) is by being weldingly fixed in the left back appropriate section of bottom right shrouding (3-2) on the right side of it, arc lower cover (3-1) left part lower end is fixedly installed in the bottom appropriate section of disk connecting portion (1-1) of holder (1) by screw, bottom right shrouding (3-2) top is fixedly installed on the right-hand member of middle seat board (1-3) of holder (1) by screw, bottom right shrouding (3-2) middle part is fixedly installed on the right-hand member of lower seat board (1-4) of holder (1) by screw, thus the bottom appropriate section of the disk connecting portion (1-1) of holder (1), middle seat board (1-3), lower seat board (1-4), the appropriate section of arc lower cover (3-1), bottom right shrouding (3-2), corresponding second cavity (8-2) is formed between connecting plate (3-3) and rear middle connecting plate (3-4) in front, the bottom appropriate section of the disk connecting portion (1-1) of holder (1), lower seat board (1-4), the appropriate section of arc lower cover (3-1), bottom right shrouding (3-2), corresponding 3rd cavity (8-3) is formed between front lower connecting plate (3-5) and rear lower connecting plate (3-6).