CN104625871A - Indexing fixture - Google Patents

Indexing fixture Download PDF

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Publication number
CN104625871A
CN104625871A CN201510043907.0A CN201510043907A CN104625871A CN 104625871 A CN104625871 A CN 104625871A CN 201510043907 A CN201510043907 A CN 201510043907A CN 104625871 A CN104625871 A CN 104625871A
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CN
China
Prior art keywords
assembling
hydraulic cylinder
axial
piston rod
link rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510043907.0A
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Chinese (zh)
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CN104625871B (en
Inventor
黄昌镜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Fengbao Metallurgical Equipment Co.,Ltd.
Original Assignee
黄昌镜
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201610947741.XA priority Critical patent/CN106346311A/en
Application filed by 黄昌镜 filed Critical 黄昌镜
Priority to CN201610710842.5A priority patent/CN106217091A/en
Priority to CN201610960108.4A priority patent/CN106378664A/en
Priority to CN201610969205.XA priority patent/CN106425683A/en
Priority to CN201610707496.5A priority patent/CN106181573A/en
Priority to CN201610955596.XA priority patent/CN106363441A/en
Priority to CN201610950737.9A priority patent/CN106312686A/en
Priority to CN201510043907.0A priority patent/CN104625871B/en
Publication of CN104625871A publication Critical patent/CN104625871A/en
Application granted granted Critical
Publication of CN104625871B publication Critical patent/CN104625871B/en
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Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02Indexing equipment
    • B23Q16/08Indexing equipment having means for clamping the relatively movable parts together in the indexed position
    • B23Q16/083Indexing equipment having means for clamping the relatively movable parts together in the indexed position with a reciprocating or oscillating drive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • B23Q3/082Work-clamping means other than mechanically-actuated hydraulically actuated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02Indexing equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means
    • B23Q2703/04Work clamping means using fluid means or a vacuum

Abstract

The invention provides an indexing fixture. After a workpiece is loaded on a bearing device, a pressing hydraulic cylinder acts firstly to conduct coarse pressing on the workpiece, then feeding is conducted through a manipulating linkage rod to further tightly press the workpiece, gaps generated by positioning and acting of the pressing hydraulic cylinder are filled up through the sizing function, positioning accuracy is improved, vibration is lowered in the workpiece machining process accordingly, and the machining accuracy is improved. Meanwhile, pressure maintaining is conducted through energy absorbed by an elastic energy storage device, that is, stored pressure is released when the hydraulic pressure drops due to leakage to compensate the pressure required by workpiece positioning, so that the indexing clamp can work normally, and the radial force hazards and potential safety hazards caused by leakage are lowered.

Description

Indexing fixture
Technical field
The present invention relates to fixture, especially relate to the supporting fixture be used for the processing of workpiece calibration of lathe.
Background technology
The patent No. is the Chinese patent of 201420111322.9, the indexing fixture recorded, comprise clamp body, clamp body has spatial accommodation, workpiece is loaded among spatial accommodation, and clamp body is provided with supporting arrangement and hold down gag, and supporting arrangement is used for holding workpieces, hold down gag, after supporting arrangement holding workpieces, applies to complete location after pressure makes Work-sheet pressing to it.The defect that this technical scheme exists at present is different because of workpiece, and surface irregularity, and hold down gag is because only there is the thick pressuring action compressing hydraulic cylinder, causes existing between its pressing plate and workpiece inessential gap error, affect machining accuracy, setting accuracy is not enough.And turn round together with workpiece due to existing pressing plate, pressing plate can apply radial load to the hold down gag be in contact with it, especially this radial load can be delivered to the piston rod compressing hydraulic cylinder, cause producing radial clearance between piston rod and piston, the hydraulic packing face of making produces reveals, and pressure drop compresses action and lost efficacy, extreme influence machining accuracy, and bring potential safety hazard.
Summary of the invention
For overcoming above-mentioned defect, indexing fixture provided by the invention, the basis of thick pressuring action is set up smart pressuring action, reduce the inessential gap behind location, improving setting accuracy, and auto-compensation can be carried out when hydraulic pressure is revealed to pressing pressure, reducing because turning round the radial load impact brought.
Indexing fixture provided by the invention, comprise clamp body, clamp body has spatial accommodation, clamp body is provided with supporting arrangement and hold down gag, hold down gag comprises pressing plate, compress hydraulic cylinder, piston rod, link rod, compress hydraulic cylinder and the fixing assembling of clamp body, piston rod compresses hydraulic cylinder axially movable assembling relatively, piston rod orders about axial activity by compressing hydraulic cylinder, link rod and the assembling of piston rod axial restraint, link rod and piston rod are to relative roll adjustment, link rod and the assembling of pressing plate axial restraint, pressing plate relative link rod revolution assembling, compress hydraulic cylinder and comprise piston, piston rod orders about axial activity by piston, piston rod comprises piston rod convex shoulder, elastic accumulator is provided with between piston rod convex shoulder and piston, elastic accumulator and piston rod convex shoulder abut assembling, elastic accumulator and piston abut assembling.
According to indexing fixture provided by the invention, after workpiece is loaded into supporting arrangement, compressed hydraulic cylinder action before this, thick pressuring action is carried out to workpiece, and then by handling link rod feeding, further workpiece is closely compressed, essence pressuring action fills up the gap compressing hydraulic cylinder operating position fixing, improve setting accuracy, and then play reduction vibrations when work pieces process, improve the effect of machining accuracy.The energy that elastic accumulator is absorbed simultaneously is used to pressurize, namely be at the pressure put aside because of release when leakage causes hydraulic pressure to decline, to compensate the pressure required for Workpiece fixing, indexing fixture normally can being worked, delaying because revealing the radial load harm and safety hidden danger caused.
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structure chart after indexing fixture embodiment loads workpiece.
Fig. 2 is one of stereogram of indexing fixture embodiment.
Fig. 3 is the stereogram two of indexing fixture embodiment.
Fig. 4 is the structure chart of indexing fixture embodiment.
Fig. 5 is that the A-A of Fig. 4 is to sectional view.
Fig. 6 is indexing fixture embodiment A place schematic enlarged-scale view.
Fig. 7 is the structure chart after Fig. 6 dismantles rolling ball body 350.
Fig. 8 is indexing fixture embodiment link rod 340 and rolling ball body 350 the second assembly structure.
Fig. 9 is the structure chart of the base 270 of indexing fixture embodiment.
Detailed description of the invention
According to Fig. 1 to Fig. 4, shown in Fig. 6 to Fig. 8, indexing fixture embodiment of the present invention, comprise clamp body 100, clamp body 100 has spatial accommodation 900, clamp body 100 is provided with supporting arrangement 200 and hold down gag 300, hold down gag 300 comprises pressing plate 310, compress hydraulic cylinder 320, piston rod 330, link rod 340, compress hydraulic cylinder 320 and the fixing assembling of clamp body 100, piston rod 330 compresses hydraulic cylinder 320 axially movable assembling relatively, piston rod 330 orders about axial activity by compressing hydraulic cylinder 320, link rod 340 and the assembling of piston rod 330 axial restraint, link rod 340 and piston rod 330 axially relative roll adjustment, link rod 340 and the assembling of pressing plate 310 axial restraint, pressing plate 310 relatively link rod 340 turns round assembling, compress hydraulic cylinder 320 and comprise piston 321, piston rod 330 orders about axial activity by piston 321, piston rod 330 comprises piston rod convex shoulder 332, elastic accumulator 360 is provided with between piston rod convex shoulder 332 and piston 321, elastic accumulator 360 and piston rod convex shoulder 332 abut assembling, elastic accumulator 360 and piston 321 abut assembling.
Spatial accommodation 900 is the spaces for loading workpiece 800, and workpiece 800 is loaded into spatial accommodation 900 from the top of clamp body 100.
Piston rod 330 compresses hydraulic cylinder 320 axially movable assembling relatively, piston rod 330 is the piston rods compressing hydraulic cylinder 320, clamp body 100 is fixedly mounted on owing to compressing hydraulic cylinder 320, piston rod 330 is axially movable with regard to the compression hydraulic cylinder 320 of geo-stationary, therefore the axial movable assembling of piston rod 330 relative compression hydraulic cylinder 320 is construed as piston rod 330 and relatively can compresses the axial activity of hydraulic cylinder 320, and it orders about by compressing hydraulic cylinder 320.
Link rod 340 and the assembling of piston rod 330 axial restraint, link rod 340 and piston rod 330 axially relative roll adjustment, refer to that both link rod 340 and piston rod 330 have axial interaction relation to have again axial relative shift relation, link rod 340 and piston rod 330 can order about axially common interaction relation of retreating by compressing hydraulic cylinder 320, link rod 340 can axially be retreated by opposing pistons bar 330 separately again simultaneously, axially relative roll adjustment both being formed thus, namely the interlock of link rod 340 and piston rod 330 is so-calledly slightly compress action to workpiece, and namely the independent roll adjustment of link rod 340 opposing pistons bar 330 is so-called to workpiece essence pressuring action.
Link rod 340 and the assembling of pressing plate 310 axial restraint, pressing plate 310 relatively link rod 340 turns round assembling, refer to that link rod 340 and both pressing plates 310 have interaction relation to have again relative revolution relation, link rod 340 and pressing plate 310 also can order about axially common interaction relation of retreating by compression hydraulic cylinder 320, and pressing plate 310 can turn round by relative link rod 340 separately again simultaneously.
Piston rod convex shoulder 332 can be considered as the bulge loop that piston rod 330 outer wall is set up, piston 321 is socketed on piston rod 330, piston 321 promotes piston rod convex shoulder 332 by elastic accumulator 360, elastic accumulator 360 is out of shape gradually under piston 321 acts on, until arrive critical equilibrium point to start axial advancement together with piston rod 330, when hydraulic pressure is revealed, the energy that elastic accumulator 360 is absorbed is used to pressurize, namely be because of reveal cause hydraulic pressure to decline time stretching, extension, to discharge the pressure put aside, compensate the pressure required for Workpiece fixing, embodiment can normally be worked.
The butterfly spring that elastic accumulator 360 is preferably common, but be not limited to this, any is elastic, and the device that pressure can be converted into elastic potential energy can substitute it.
As shown in Fig. 4, Fig. 6, Fig. 7, pressing plate 310 link rod 340 rolling friction assembling relatively.Refer to that the relative displacement contact between both is all converted into rolling friction, specifically, when pressing plate 310 turns round together with workpiece 800, a little radial displacement of the relative link rod 340 of pressing plate 310, the radial load negative effect that pressing plate 310 puts on link rod 340 is reduced by rolling friction each other, keep the axial concentricity of link rod 340, and then improve machining accuracy.Especially, it should be noted that to only have rolling friction to contact between link rod 340 with pressing plate 310, in addition there is no other contact site between the two.
Have rolling ball body 350 between the link rod 340 of the present embodiment and pressing plate 310, rolling ball body 350 and link rod 340 abut assembling, and rolling ball body 350 and pressing plate 310 abut assembling.
Can say that rolling ball body 350 is exactly a ball ball, preferred rolling ball body 350 is easy to dismounting and maintenance, is conducive to reducing costs.But the abutting relation between link rod 340 and pressing plate 310 should be defined as rolling ball body 350, as long as because both rolling friction can be realized.
Link rod 340 is provided with yoke plate groove 341, and rolling ball body 350 and yoke plate groove 341 matched in clearance are assembled.Yoke plate groove 341 is a kind of structures being conducive to dismounting maintenance, and other mechanism certainly also can be used to be replaced.Such as, as shown in Figure 8, a lateral pin 349 can be set up at link rod 340, lateral pin 349 two ends and link rod 340 fix assembling, and rolling ball body 350 are provided with a through hole 355, by the through hole 355 of lateral pin 349 through this rolling ball body 350, rolling ball body 350 can rotate relative to lateral pin 349, complete the assembling of rolling ball body 350 and link rod 340, just comparing yoke plate groove 341 like that can significantly raise the cost, and dismounting maintenance cost is high.
Link rod 340 is provided with abutting end 342 successively, thread segment 343 and control end 344, abutting end 342 is towards pressing plate 310, thread segment 343 and the assembling of piston rod 330 threaded engagement, control end 344 is towards cavity 331, the through assembling of cavity 331 and the external world, abutting end 342 is provided with link rod end face 345, yoke plate groove 341 and packing ring 346, pressing plate 310 is provided with lasso 311, lasso 311 relatively link rod 340 is socketed assembling, lasso 311 and the fixing assembling of pressing plate 310, lasso 311 and the assembling of packing ring 346 axial restraint, yoke plate groove 341 has the circular port 347 being positioned at link rod end face 345, circular port 347 diameter is less than rolling ball body 350 diameter, yoke plate groove 341 axial depth is greater than 1/2nd of rolling ball body 350 diameter, yoke plate groove 341 axial depth is less than rolling ball body 350 diameter, control end 344 comprises yi word pattern groove 348 or cross groove, yi word pattern groove or cross groove face are to cavity 331.
It is the permanent assembly relations that axially cannot depart from link rod 340 that the structure of yoke plate groove 341 and the size of rolling ball body 350 determine rolling ball body 350.Link rod 340 two ends are set to the abutting end 342 coordinated with pressing plate 310 respectively, and be subject to the control end 344 of operative, thread segment 343 arranges external screw thread and piston rod 330 threaded engagement, pressing plate 310 and link rod 340 complete axial restraint by the lasso 311 that arranges respectively and packing ring 346, can with operation tool as cavity 331 be got involved by screwdriver etc. from the external world, the operation yi word pattern groove 348 of control end 344 or cross groove facilitate turn link rod 340, make it can roll adjustment relative to piston rod 330.
As shown in Fig. 4, Fig. 6, Fig. 7, piston rod 330 comprises cavity 331, and link rod 340 opposing cavities 331 is movable assembling axially, link rod 340 and the assembling of piston rod 330 threaded engagement.Piston rod 330 is tubulars of hollow, its inner formation cavity 331, link rod 340 opposing cavities 331 is movable assembling axially, refer to that cavity 331 is static, and link rod 340 can be axially movable among cavity 331, link rod 340 and the assembling of piston rod 330 threaded engagement, as long as make turn link rod 340, can obtain link rod 340 movable effect axial relative to piston rod 330, structure is simple and rationally, be convenient to assembling simultaneously.
As shown in Figure 4, supporting arrangement 200 also can with reference to the appropriate section mechanism in the Chinese patent of existing 201420111322.9, it comprises oscillating motor 210, connecting plate 220, location-plate 230, locked hydraulic cylinder 240, dynamic gear ring 250 and quiet gear ring 260, oscillating motor 210 and the fixing assembling of clamp body 100, locked hydraulic cylinder 240 and the fixing assembling of clamp body 100, connecting plate 220 opposing oscillatory hydraulic cylinder 210 revolution assembling, connecting plate 220 orders about revolution by oscillating motor 210, connecting plate 220 and the fixing assembling of location-plate 230, connecting plate 220 and the fixing assembling of dynamic gear ring 250, locked hydraulic cylinder 240 and the fixing assembling of clamp body 100, the locked hydraulic cylinder 240 axially movable assembling relatively of quiet gear ring 260, quiet gear ring 260 orders about axial activity by locked hydraulic cylinder 240, quiet gear ring 260 and dynamic gear ring 250 comprise abutting lockup state and depart from released state.
Connecting plate 220 opposing oscillatory hydraulic cylinder 210 revolution assembling, refer to that connecting plate 220 is arranged on the piston rod of oscillating motor 210, and then turn round by its oscillating motor 210 ordering about geo-stationary, as long as mean that oscillating motor 210 drives connecting plate 220 to turn round, the location-plate 230 together with fixing with connecting plate 220 and dynamic gear ring 250 can be driven to turn round, and even location-plate 230 and workpiece 800 also together turn round simultaneously.Compress the piston rod of hydraulic cylinder 320 and the piston rod center alignment of oscillating motor 210, in the concentric installation of a horizontal straight line.
The locked hydraulic cylinder 240 axially movable assembling relatively of quiet gear ring 260, locked hydraulic cylinder 240 can be axially movable relatively to refer to quiet gear ring 260, because quiet gear ring 260 is arranged on the piston rod of locked hydraulic cylinder 240, therefore quiet gear ring 260 orders about axial activity by locked hydraulic cylinder 240.Abutting lockup state between quiet gear ring 260 and dynamic gear ring 250 and depart from released state is that it is realized by following principle: when quiet gear ring 260 is in the released state departing from dynamic gear ring 250, and that is dynamic gear ring 250 is now rotatable; When the piston rod of locked hydraulic cylinder 240 promotes the feeding of quiet gear ring 260 until when it is connected to dynamic gear ring 250, the revolution trend of dynamic gear ring 250 is just stoped by quiet gear ring 260, defines the latch functions of quiet gear ring 260 to dynamic gear ring 250.
For improving operation stability and reducing the consideration of processing vibration equally, dynamic gear ring 250 and the quiet gear ring 260 of the present embodiment are all installed with one heart centered by oscillating motor 210, and it is the same with the Chinese patent of existing 201420111322.9, clamp body 100 be provided be evenly distributed on quiet gear ring 260 circumferentially three locked hydraulic cylinders 240, quiet gear ring 260 is axial feed under three locked hydraulic cylinders 240 order about effect simultaneously.
Specially remark additionally: oscillating motor 210, locked hydraulic cylinder 240, compress the fixing assembling of this three of hydraulic cylinder 320 and clamp body 100, all refer to that the cylinder body of three is static to be fixed on clamp body 100, and the piston rod of three is its cylinder body activity relatively.Locked hydraulic cylinder 240, compression hydraulic cylinder 320 belong to straight reciprocating motion formula hydraulic cylinder, and oscillating motor 210 belongs to gyroscopic pendulum dynamic formula hydraulic cylinder, is all hydraulic cylinder common on market.
As shown in Fig. 4, Fig. 5, Fig. 9, supporting arrangement 200 comprises base 270, base 270 comprises stopper slot 271, rest pad 272 and axial slope 273, rest pad 272 and workpiece abut assembling, pressing plate 310 relative limit groove 271 is movable assembling axially, axial slope 273 and the fixing assembling of base 270, and axial slope 273 respect thereto 270 is movable assembling axially, the radial movable assembling of rest pad 272 respect thereto 270, rest pad 272 and axial slope 273 abut assembling.
Can find out, workpiece 800 is the supporting-point with three directions in an embodiment, the location-plate 230 in left side respectively, the pressing plate 310 on right side, and the rest pad 272 of downside, rest pad 272 is interpreted as the super positioner set up for locating the heavy weight workpiece of some large volume, strengthens the accuracy of location.Stopper slot 271 is opened in base 270 surface, the present embodiment is that the lower end of pressing plate 310 is assemblied in stopper slot 271, pressing plate 310 and stopper slot 271 matched in clearance, by stopper slot 271 both sides position-limiting action, pressing plate 310 axially can only be retreated in stopper slot 271, and therefore this is the axially movable lexical or textual analysis of assembling of pressing plate 310 relative limit groove 271.Axial slope 273 refers to the inclined-plane that the axis along piston rod 330 tilts gradually.Axial slope 273 and the fixing assembling of base 270, axial slope 273 respect thereto 270 is movable assembling axially, also be direction same as the axis of piston rod 330, refer to the existing locking state be fixed together of both axial slope 273 and base 270, have again between the two can be mutually axially displaced released state.Rest pad 272 and axial slope 273 abut assembling, refer to that both are in abutting contact after mounting.The base 270 of axial slope 273 geo-stationary during such released state is axially movable, and then promotion rest pad 272 is axially elevated on inclined-plane 273, and then change the height of rest pad 272 relative to base 270, again by axial slope 273 and base 270 locking fixed with each other after adjustment, to adjust workpiece 800 height, and to adapt to the demand of different workpieces.
It is emphasized that the present embodiment adopts base 270 to fix, and the structure that axial slope 273 is movable in base 270.Also axial slope 273 can be adopted static, and make base 270 axially movable, and then promote the structure of rest pad 272, but must solve like that be rest pad 272 move axially error, therefore on base 270, the axial displacement compensation arrangement for rest pad 272 must be set up again, error is moved axially with what compensate rest pad 272, though be feasible scheme, but cost height enterprise.
As Fig. 5, shown in Fig. 9, base 270 comprises radial slideway 274, axial slideway 275 and slide block 276, radial slideway 274 and the mutual through assembling of axial slideway 275, the radial movable assembling of the relatively radial slideway 274 of rest pad 272, slide block 276 slideway 275 axially movable assembling to axial, slide block 276 comprises slide block abutting end 276a and slide block locking end 276b, axial slope 273 is positioned at slide block abutting end 276a, slide block locking end 276b comprises slider locks pin (not indicating in figure) and elastic expansion hole 276c, slider locks pin (not indicating in figure) and elastic expansion hole 276c comprise swelling lockup state and shrinkage porosite released state.
Because the present embodiment adopts base 270 to fix, so rest pad 272 acts on relative to the radial activity of static radial slideway 274 by axial slope 273, and slider locks pin (not indicating in figure) is manually-operated.So-called swelling lockup state and shrinkage porosite released state, its object is all to make slide block 276 axially movable to adjust the height and position of rest pad 272 relative to base 270, after adjustment, slider locks pin (not indicating in figure) can be inserted elastic expansion hole 276c deeply, strut until elastic expansion hole 276c expands, abut with the wall of axial slideway 275 to produce and rub and form lockup state, need to change rest pad 272 height, slider locks pin (not indicating in figure) is only needed to pull away elastic expansion hole 276c, elastic expansion hole 276c can be made to shrink, thus remove the unlocking motion of the slide block 276 that rubbed.

Claims (10)

1. indexing fixture, comprise clamp body (100), clamp body (100) has spatial accommodation (900), and clamp body (100) is provided with supporting arrangement (200) and hold down gag (300), it is characterized in that:
Hold down gag (300) comprises pressing plate (310), compresses hydraulic cylinder (320), piston rod (330), link rod (340), compress hydraulic cylinder (320) and the fixing assembling of clamp body (100), piston rod (330) compresses hydraulic cylinder (320) axially movable assembling relatively, piston rod (330) orders about axial activity by compressing hydraulic cylinder (320), link rod (340) and the assembling of piston rod (330) axial restraint, link rod (340) and piston rod (330) axially relative roll adjustment
Link rod (340) and the assembling of pressing plate (310) axial restraint, pressing plate (310) is link rod (340) revolution assembling relatively, compress hydraulic cylinder (320) and comprise piston (321), piston rod (330) orders about axial activity by piston (321), piston rod (330) comprises piston rod convex shoulder (332), elastic accumulator (360) is provided with between piston rod convex shoulder (332) and piston (321), elastic accumulator (360) and piston rod convex shoulder (332) abut assembling, elastic accumulator (360) and piston (321) abut assembling.
2. indexing fixture according to claim 1, it is characterized in that: piston rod (330) comprises cavity (331), link rod (340) opposing cavities (331) is movable assembling axially, link rod (340) and the assembling of piston rod (330) threaded engagement.
3. according to the indexing fixture of claim 1 or 2, it is characterized in that: pressing plate (310) link rod (340) rolling friction assembling relatively.
4. indexing fixture according to claim 3, it is characterized in that: there is between link rod (340) and pressing plate (310) rolling ball body (350), rolling ball body (350) and link rod (340) abut assembling, and rolling ball body (350) and pressing plate (310) abut assembling.
5. indexing fixture according to claim 4, is characterized in that: link rod (340) is provided with yoke plate groove (341), and rolling ball body (350) and yoke plate groove (341) matched in clearance are assembled.
6. indexing fixture according to claim 5, it is characterized in that: link rod (340) is provided with abutting end (342) successively, thread segment (343) and control end (344), abutting end (342) is towards pressing plate (310), thread segment (343) and the assembling of piston rod (330) threaded engagement, control end (344) is towards cavity (331), the through assembling of cavity (331) and the external world, abutting end (342) is provided with link rod end face (345), yoke plate groove (341) and packing ring (346), pressing plate (310) is provided with lasso (311), lasso (311) is link rod (340) socket assembling relatively, lasso (311) and the fixing assembling of pressing plate (310), lasso (311) and the assembling of packing ring (346) axial restraint, yoke plate groove (341) has the circular port (347) being positioned at link rod end face (345), circular port (347) diameter is less than rolling ball body (350) diameter, yoke plate groove (341) axial depth is greater than 1/2nd of rolling ball body (350) diameter, yoke plate groove (341) axial depth is less than rolling ball body (350) diameter, control end (344) comprises yi word pattern groove (348) or cross groove, yi word pattern groove or cross groove face are to cavity (331).
7. according to the indexing fixture of claim 1 or 2, it is characterized in that: elastic accumulator (360) is butterfly spring.
8. according to the indexing fixture of claim 1 or 2, it is characterized in that: supporting arrangement (200) comprises base (270), base (270) comprises stopper slot (271), rest pad (272) and axial slope (273), rest pad (272) and workpiece abut assembling, pressing plate (310) relative limit groove (271) is movable assembling axially, axial slope (273) and the fixing assembling of base (270), axial slope (273) respect thereto (270) is movable assembling axially, the radial movable assembling of rest pad (272) respect thereto (270), rest pad (272) and axial slope (273) abut assembling.
9. indexing fixture according to claim 8, it is characterized in that: base (270) comprises radial slideway (274), axial slideway (275) and slide block (276), radial slideway (274) and the mutual through assembling of axial slideway (275), the radial movable assembling of the relatively radial slideway (274) of rest pad (272), slide block (276) slideway (275) axially movable assembling to axial, slide block (276) comprises slide block abutting end (276a) and slide block locking end (276b), axial slope (273) is positioned at slide block abutting end (276a), slide block locking end (276b) comprises slider locks pin and elastic expansion hole (276c), slider locks pin and elastic expansion hole (276c) comprise swelling lockup state and shrinkage porosite released state.
10. according to the indexing fixture of claim 1 or 2, it is characterized in that: supporting arrangement (200) comprises oscillating motor (210), connecting plate (220), location-plate (230), locked hydraulic cylinder (240), dynamic gear ring (250) and quiet gear ring (260), oscillating motor (210) and the fixing assembling of clamp body (100), locked hydraulic cylinder (240) and the fixing assembling of clamp body (100), connecting plate (220) opposing oscillatory hydraulic cylinder (210) revolution assembling, connecting plate (220) orders about revolution by oscillating motor (210), connecting plate (220) and the fixing assembling of location-plate (230), connecting plate (220) and the fixing assembling of dynamic gear ring (250), locked hydraulic cylinder (240) and the fixing assembling of clamp body (100), quiet gear ring (260) locked hydraulic cylinder (240) axially movable assembling relatively, quiet gear ring (260) orders about axial activity by locked hydraulic cylinder (240), quiet gear ring (260) and dynamic gear ring (250) comprise abutting lockup state and depart from released state.
CN201510043907.0A 2015-01-28 2015-01-28 Indexing fixture Active CN104625871B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN201610710842.5A CN106217091A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610960108.4A CN106378664A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610969205.XA CN106425683A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610707496.5A CN106181573A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610947741.XA CN106346311A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610950737.9A CN106312686A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610955596.XA CN106363441A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201510043907.0A CN104625871B (en) 2015-01-28 2015-01-28 Indexing fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510043907.0A CN104625871B (en) 2015-01-28 2015-01-28 Indexing fixture

Related Child Applications (7)

Application Number Title Priority Date Filing Date
CN201610710842.5A Division CN106217091A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610950737.9A Division CN106312686A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610969205.XA Division CN106425683A (en) 2015-01-28 2015-01-28 Indexing fixture
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CN104972329A (en) * 2015-07-13 2015-10-14 常州信息职业技术学院 Hydraulic indexing clamping device capable of rapidly replacing workpiece and fast in transposition
CN105364492A (en) * 2015-11-17 2016-03-02 盐城苏工高科机械有限公司 Vertical type turning-milling-grinding flexible machining unit
CN106312562A (en) * 2016-10-13 2017-01-11 宁波高新区敦和科技有限公司 Universal joint pin machining device
TWI587969B (en) * 2016-10-12 2017-06-21 Direct drive indexing plate seepage control structure
CN108555369A (en) * 2018-04-12 2018-09-21 秦歌 A kind of bridge maintaining equipment
CN108581010A (en) * 2018-04-12 2018-09-28 李宁 A kind of letter box arrangement
CN109396949A (en) * 2018-12-05 2019-03-01 宁波迈途机械科技有限公司 A kind of housing structure of index chuck

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CN104972329A (en) * 2015-07-13 2015-10-14 常州信息职业技术学院 Hydraulic indexing clamping device capable of rapidly replacing workpiece and fast in transposition
CN105364492A (en) * 2015-11-17 2016-03-02 盐城苏工高科机械有限公司 Vertical type turning-milling-grinding flexible machining unit
TWI587969B (en) * 2016-10-12 2017-06-21 Direct drive indexing plate seepage control structure
CN106312562A (en) * 2016-10-13 2017-01-11 宁波高新区敦和科技有限公司 Universal joint pin machining device
CN108555369A (en) * 2018-04-12 2018-09-21 秦歌 A kind of bridge maintaining equipment
CN108581010A (en) * 2018-04-12 2018-09-28 李宁 A kind of letter box arrangement
CN109396949A (en) * 2018-12-05 2019-03-01 宁波迈途机械科技有限公司 A kind of housing structure of index chuck

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CN104625871B (en) 2017-01-04
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CN106346311A (en) 2017-01-25
CN106425683A (en) 2017-02-22

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