CN106425683A - Indexing fixture - Google Patents

Indexing fixture Download PDF

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Publication number
CN106425683A
CN106425683A CN201610969205.XA CN201610969205A CN106425683A CN 106425683 A CN106425683 A CN 106425683A CN 201610969205 A CN201610969205 A CN 201610969205A CN 106425683 A CN106425683 A CN 106425683A
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CN
China
Prior art keywords
assembling
link rod
piston rod
piston
pressing plate
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.)
Withdrawn
Application number
CN201610969205.XA
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Chinese (zh)
Inventor
黄昌镜
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610969205.XA priority Critical patent/CN106425683A/en
Publication of CN106425683A publication Critical patent/CN106425683A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, 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
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B23Q16/08—Indexing equipment having means for clamping the relatively movable parts together in the indexed position
    • B23Q16/083—Indexing equipment having means for clamping the relatively movable parts together in the indexed position with a reciprocating or oscillating drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices 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
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices 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
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, 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
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, 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
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • B23Q2703/04—Work clamping means using fluid means or a vacuum

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Fluid-Damping Devices (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention provides an indexing fixture. After a workpiece is loaded on a support device, a pressing hydraulic cylinder firstly acts to achieve a rough pressing effect on the workpiece, and then, an operation connecting rod is fed to further tightly press the workpiece; and a fine pressing effect fills an action positioning gap of the pressing hydraulic cylinder to improve the positioning precision so as to achieve the effects of reducing the vibration and improving the machining precision in workpiece machining. Meanwhile, an elastic energy storer absorbs energy for maintaining the pressure, that is, the accumulated pressure is released to compensate the pressure needed by workpiece positioning when the hydraulic pressure is reduced due to leakage, so that the indexing fixture can normally work, and delays the radial force harm and potential safety hazards caused by leakage.

Description

Indexing fixture
The application be to Chinese invention patent application number：201510043907.0, the applying date：On January 28th, 2015, name Claim：The divisional application of indexing fixture.
Technical field
The present invention relates to fixture, especially relates to the supporting fixture for indexing processing to workpiece of lathe.
Background technology
The Chinese patent of Patent No. 201420111322.9, the indexing fixture of record, including clamp body, clamp body has Receiving space, workpiece is loaded among receiving space, and clamp body is provided with supporting arrangement and hold down gag, and supporting arrangement is used for supporting Workpiece, hold down gag is after supporting arrangement supporting workpiece, and apply pressure makes to complete positioning after Work-sheet pressing to which.The technical scheme The defect that presently, there are is different because of workpiece, and surface irregularity, and hold down gag is because only compression hydraulic cylinder Thick pressuring action, cause between its pressing plate and workpiece, the presence of inessential gap error, affect machining accuracy, setting accuracy is not Foot.And as existing pressing plate and workpiece are turned round together, pressing plate can apply radial force to the hold down gag being in contact with it, especially It is that the radial force can be delivered to the piston rod for compressing hydraulic cylinder, causes between piston rod and piston, to produce radial clearance so that liquid Densification front cover produces leakage, pressure drop, compression action failure, extreme influence machining accuracy, and brings potential safety hazard.
Content of the invention
For overcoming drawbacks described above, the indexing fixture that the present invention is provided, pressure-sizing being set up on the basis of thick pressuring action tightly makees With, the inessential gap after minimizing positioning, setting accuracy is improved, and can be mended to pressing pressure automatically when hydraulic pressure is revealed Repay, reducing affects because of the radial force that revolution brings.
The indexing fixture that the present invention is provided, including clamp body, clamp body has receiving space, and clamp body is provided with supporting arrangement And hold down gag, hold down gag includes pressing plate, compresses hydraulic cylinder, piston rod, link rod, compresses hydraulic cylinder and clamp body fixes dress Join, piston rod is pressed against hydraulic cylinder axially activity assembling, piston rod is ordered about axial activity, link rod and piston by compression hydraulic cylinder The assembling of bar axial restraint, link rod and the axially opposing roll adjustment of piston rod, link rod and pressing plate axial direction fixing assembling, pressing plate is returned with respect to link rod Turn assembling, compression hydraulic cylinder includes piston, and piston rod is ordered about axial activity by piston, and piston rod includes piston rod convex shoulder, piston Elastic accumulator, elastic accumulator and piston rod convex shoulder abuts assembling, elastic accumulator and work is provided between bar convex shoulder and piston Plug abuts assembling.
According to the indexing fixture that the present invention is provided, after workpiece is loaded into supporting arrangement, hydraulic cylinder action was compressed before this, right Workpiece carries out thick pressuring action, then again by manipulating link rod feeding, closely compresses workpiece further, and smart pressuring action is filled up The gap of compression hydraulic cylinder operating position fixing, improves setting accuracy, and then plays reduction vibrations in work pieces process, improve processing The effect of precision.While the energy absorbed by elastic accumulator is used to pressurize, it is to cause under hydraulic pressure because of leakage Discharge put aside pressure during drop, to compensate the pressure required for workpiece positioning, make indexing fixture can normal work, delay because letting out Radial force harm and potential safety hazard that dew causes.
With reference to embodiment and accompanying drawing, the present invention is described in further detail.
Description of the drawings
Fig. 1 is the structure chart after indexing fixture embodiment loads workpiece.
Fig. 2 is one of axonometric chart of indexing fixture embodiment.
Fig. 3 is the two of the axonometric chart of indexing fixture embodiment.
Fig. 4 is the structure chart of indexing fixture embodiment.
Fig. 5 is the A-A of Fig. 4 to sectional view.
Fig. 6 is schematic enlarged-scale view at indexing fixture embodiment A.
Fig. 7 is the structure chart after Fig. 6 dismounting rolling ball body 350.
Fig. 8 is indexing fixture embodiment link rod 340 and 350 second assembling structure of rolling ball body.
Fig. 9 is the structure chart of the base 270 of indexing fixture embodiment.
Specific embodiment
According to Fig. 1 to Fig. 4, Fig. 6 to Fig. 8, the indexing fixture embodiment of the present invention, including clamp body 100, clamp body 100 with receiving space 900, and clamp body 100 is provided with supporting arrangement 200 and hold down gag 300, and hold down gag 300 includes pressing plate 310th, compression hydraulic cylinder 320, piston rod 330, link rod 340, compression hydraulic cylinder 320 and 100 fixing assembling of clamp body, piston rod 330 are pressed against the axially activity assembling of hydraulic cylinder 320, and piston rod 330 is ordered about axial activity, link rod 340 by compression hydraulic cylinder 320 Assemble with 330 axial restraint of piston rod, link rod 340 and the axially opposing roll adjustment of piston rod 330, link rod 340 and pressing plate 310 are axially solid Fixed assembling, the relative revolution of link rod 340 assembling of pressing plate 310, compression hydraulic cylinder 320 includes piston 321, and piston rod 330 is by piston 321 Axial activity is ordered about, and piston rod 330 includes piston rod convex shoulder 332, and elastic storage is provided between piston rod convex shoulder 332 and piston 321 Can device 360, elastic accumulator 360 and 332 abuts assembling of piston rod convex shoulder, elastic accumulator 360 and 321 abuts assembling of piston.
Receiving space 900 is that workpiece 800 is loaded into receiving from the top of clamp body 100 for loading the space of workpiece 800 In space 900.
Piston rod 330 is pressed against the axially activity assembling of hydraulic cylinder 320, and piston rod 330 is the piston for compressing hydraulic cylinder 320 Bar, is fixedly mounted at clamp body 100 due to compressing hydraulic cylinder 320, and piston rod 330 is with regard to the compression hydraulic cylinder of geo-stationary 320 axially activities, therefore piston rod 330 be pressed against hydraulic cylinder 320 axially activity assembling to be construed as piston rod 330 permissible The axially activity of hydraulic cylinder 320 is pressed against, and which is ordered about by compression hydraulic cylinder 320.
Link rod 340 and the assembling of 330 axial restraint of piston rod, link rod 340 and the axially opposing roll adjustment of piston rod 330, refer to connection Both bar 340 and piston rod 330 have axial interaction relation to have axially opposing shifted relationship, link rod 340 and piston rod 330 to be again can To be ordered about the axially common interaction relation that retreats by compression hydraulic cylinder 320, while link rod 340 again can independent opposing pistons bar 330 axially retreat, and are consequently formed both axially opposing roll adjustments, and the linkage of link rod 340 and piston rod 330 is so-called to work Part slightly compression action, and the independent roll adjustment of 340 opposing pistons bar 330 of link rod is so-called to workpiece essence pressuring action.
Link rod 340 and the assembling of 310 axial restraint of pressing plate, the relative revolution of link rod 340 assembling of pressing plate 310, refer to 340 He of link rod Both pressing plates 310 have interaction relation to have relative revolution relation, link rod 340 and pressing plate 310 be driven by compression hydraulic cylinder 320 again The axially common interaction relation that retreats is made, while pressing plate 310 individually can be turned round with respect to link rod 340 again.
Piston rod convex shoulder 332 can be considered as the bulge loop that 330 outer wall of piston rod is set up, and piston 321 is socketed in piston rod 330 On, piston 321 promotes piston rod convex shoulder 332 by elastic accumulator 360, elastic accumulator 360 under the effect of piston 321 gradually Deformation, until it reaches critical equilibrium point starts and piston rod 330 together axial advancement, when hydraulic pressure is revealed, elastic accumulator 360 The energy for being absorbed is used to pressurize, is to cause hydraulic pressure to stretch when declining because of leakage, to discharge put aside pressure Power, compensates the pressure required for workpiece positioning, makes the embodiment can normal work.
The preferably common butterfly spring of elastic accumulator 360, but be not limited to this, any is elastic, can be by Pressure is converted into the device of elastic potential energy and can substitute it.
As shown in Fig. 4, Fig. 6, Fig. 7,310 relative link rod 340 rolling friction assembling of pressing plate.Refer to relative between both Displacement Contact is completely converted into rolling friction, specifically, is 310 phase of pressing plate when pressing plate 310 and workpiece 800 are turned round together A little radial displacement to link rod 340, reduces the footpath that pressing plate 310 puts on link rod 340 by rolling friction each other Negatively affect to power, the axial concentricity of link rod 340 is kept, and then improves machining accuracy.Especially, it should be noted that, link rod Rolling friction is only had to contact between 340 and pressing plate 310, in addition between the two without other contact site.
With 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 are supported Tipping is joined, rolling ball body 350 and 310 abuts assembling of pressing plate.
It may be said that rolling ball body 350 is exactly a ball ball, preferably rolling ball body 350 is easy to dismount and keeps in repair, favorably In reduces cost.But the abutting relation between link rod 340 and pressing plate 310 should not be defined to rolling ball body 350, because only Both rolling friction can be realized.
Link rod 340 is provided with yoke plate groove 341, and rolling ball body 350 coordinates assembling with 341 gap of yoke plate groove.Yoke plate groove 341 is that have Beneficial to a kind of structure of dismounting maintenance, also can be replaced using other mechanism certainly.Such as, as shown in figure 8, can be in link rod 340 set up a lateral pin 349,349 two ends of lateral pin and 340 phase fixing assembling of link rod, and rolling ball body 350 is provided with a through hole 355, lateral pin 349 is passed through the through hole 355 of the rolling ball body 350, rolling ball body 350 can be rotated relative to lateral pin 349, complete to roll Spheroid 350 and the assembling of link rod 340, simply compare yoke plate groove 341 and cost can be greatly improved, and dismount maintenance cost pole High.
Link rod 340 is sequentially provided with abutting end 342, thread segment 343 and control end 344, abutting end 342 towards pressing plate 310, Thread segment 343 and 330 screw thread of piston rod coordinate assembling, and control end 344 is towards cavity 331, and cavity 331 and extraneous insertion are assembled, Abutting end 342 is provided with link rod end face 345, yoke plate groove 341 and packing ring 346, and pressing plate 310 is provided with lasso 311, and lasso 311 is relative The socket assembling of link rod 340, lasso 311 and 310 fixing assembling of pressing plate, lasso 311 and the assembling of 346 axial restraint of packing ring, yoke plate groove 341 have the circular port 347 positioned at link rod end face 345, and 347 diameter of circular port is less than 350 diameter of rolling ball body, yoke plate groove 341 Axial depth is more than 1/2nd of 350 diameter of rolling ball body, and 341 axial depth of yoke plate groove is less than 350 diameter of rolling ball body, control End processed 344 includes yi word pattern groove 348 or cross type groove, yi word pattern groove or cross groove face to cavity 331.
The size of the structure of yoke plate groove 341 and rolling ball body 350 determines that rolling ball body 350 is to be axially disengaging link rod 340 permanent assembly relation.340 two ends of link rod are respectively set to the abutting end 342 for coordinating with pressing plate 310, and are grasped by workman The control end 344 of work, thread segment 343 arranges external screw thread and 330 screw thread of piston rod coordinates, and pressing plate 310 and link rod 340 are by respectively The lasso 311 of setting and packing ring 346 complete axial restraint, can intervene cavity 331 with operation instrument such as screwdriver etc. from the external world, The yi word pattern groove 348 at operational control end 344 or cross type groove are facilitating turn link rod 340 so as to can be relative with piston rod 330 Roll adjustment.
As shown in Fig. 4, Fig. 6, Fig. 7, piston rod 330 includes cavity 331, and axially activity is filled 340 opposing cavities of link rod 331 Join, link rod 340 and 330 screw thread of piston rod coordinate assembling.Piston rod 330 is hollow tubular, and which is internally formed cavity 331, connection The axially activity assembling of 340 opposing cavities of bar 331, refers to that cavity 331 is static, and link rod 340 can be axially lived among cavity 331 Move, link rod 340 and 330 screw thread of piston rod coordinate assembling so that as long as turn link rod 340, you can obtain link rod 340 with respect to work The effect of the axial activity of stopper rod 330, simple structure and reasonable, simultaneously facilitate assembling.
As shown in figure 4, supporting arrangement 200 also refers to the corresponding portion in existing 201420111322.9 Chinese patent Sub-agencies, which includes oscillating motor 210, connecting plate 220, location-plate 230, locked hydraulic cylinder 240, moves gear ring 250 and quiet Gear ring 260, oscillating motor 210 and 100 fixing assembling of clamp body, locked hydraulic cylinder 240 and 100 fixing assembling of clamp body, even The revolution assembling of 220 opposing oscillatory hydraulic cylinder of fishplate bar 210, connecting plate 220 is ordered about revolution, 220 He of connecting plate by oscillating motor 210 230 fixing assembling of location-plate, connecting plate 220 and 250 fixing assembling of dynamic gear ring, locked hydraulic cylinder 240 and clamp body 100 fix dress Join, the 260 axially activity assembling of relative locked hydraulic cylinder 240 of quiet gear ring, quiet gear ring 260 is ordered about axial work by locked hydraulic cylinder 240 Move, quiet gear ring 260 and dynamic gear ring 250 include to abut lockup state and depart from released state.
The revolution assembling of 220 opposing oscillatory hydraulic cylinder of connecting plate 210, refers to connecting plate 220 installed in oscillating motor 210 On piston rod, and then the oscillating motor 210 of geo-stationary is ordered about by which turn round, it is meant that as long as oscillating motor 210 drives Connecting plate 220 is turned round, you can while drive the location-plate 230 being mutually fixed together with connecting plate 220 and dynamic gear ring 250 to turn round, Or even location-plate 230 and workpiece 800 are also together turned round.The compression piston rod of hydraulic cylinder 320 and the piston rod of oscillating motor 210 Center alignment, the concentric installation in a horizontal straight line.
The 260 axially activity assembling of relative locked hydraulic cylinder 240 of quiet gear ring, refers to the relative locked hydraulic cylinder 240 of quiet gear ring 260 Can be axially movable, because piston rod of the quiet gear ring 260 installed in locked hydraulic cylinder 240, therefore locked hydraulic cylinder received by quiet gear ring 260 240 order about axial activity.Abutting lockup state between quiet gear ring 260 and dynamic gear ring 250 and depart from released state, be its be logical Cross the realization of following principles：When released state of the quiet gear ring 260 in dynamic gear ring 250 is departed from, that is to say, that dynamic gear ring now 250 is rotatable；When the piston rod of locked hydraulic cylinder 240 promotes the quiet feeding of gear ring 260 until which is connected to dynamic gear ring 250 When, the revolution trend of dynamic gear ring 250 is just prevented by quiet gear ring 260, defines the latch functions of 260 pairs of dynamic gear rings 250 of quiet gear ring.
The consideration that improve operation stability and reduce processing vibration, the dynamic gear ring 250 of the present embodiment and quiet are equally in order at Gear ring 260 is all installed centered on oscillating motor 210 with one heart, and the Chinese patent with existing 201420111322.9 Equally, clamp body 100 is provided with three locked hydraulic cylinders 240 on the circumference for being evenly distributed on quiet gear ring 260, quiet gear ring 260 While ordering about axial feed under effect in three locked hydraulic cylinders 240.
Specially remarked additionally is：Oscillating motor 210, locked hydraulic cylinder 240, compression this three of hydraulic cylinder 320 and folder Concrete 100 fixing assembling, all referring to three cylinder body static be fixed on clamp body 100, and the piston rod of three is relative Its cylinder body activity.Locked hydraulic cylinder 240, compression hydraulic cylinder 320 are belonging to straight reciprocating motion formula hydraulic cylinder, and swing hydraulic pressure Cylinder 210 belongs to gyroscopic pendulum dynamic formula hydraulic cylinder, is all common hydraulic cylinder on market.
As shown in Fig. 4, Fig. 5, Fig. 9, supporting arrangement 200 includes base 270, and base 270 includes stopper slot 271, rest pad 272 and axial slope 273, rest pad 272 and workpiece abuts assembling, the axially activity assembling of 310 relative limit groove of pressing plate 271, Axial slope 273 and 270 fixing assembling of base, the axially activity assembling of 273 respect thereto of axial slope 270, rest pad 272 is relative The radially movable assembling of base 270, rest pad 272 and 273 abuts assembling of axial slope.
As can be seen that workpiece 800 is the supporting-point with three directions in an embodiment, it is the location-plate in left side respectively 230, the pressing plate 310 on right side, and the rest pad 272 of downside, rest pad 272 is interpreted as positioning the big weight of some large volumes The super positioner set up of workpiece, strengthen the degree of accuracy of positioning.Stopper slot 271 is opened in 270 surface of base, the present embodiment It is that the lower end of pressing plate 310 is assemblied in stopper slot 271, pressing plate 310 and 271 gap of stopper slot coordinate, spacing by 271 both sides of stopper slot Effect, pressing plate 310 can only be axially retreated in stopper slot 271, and therefore this is the axially activity of 310 relative limit groove of pressing plate 271 The lexical or textual analysis of assembling.Axial slope 273 refers to the inclined-plane that the axial direction along piston rod 330 gradually inclines.Axial slope 273 and base 270 fixing assemblings, the axially activity assembling of 273 respect thereto of axial slope 270, and the axial same direction with piston rod 330, The existing locking state being fixed together of both axial slope 273 and base 270 is referred to, is had again and mutually axially can move between the two The released state of position.Rest pad 272 and 273 abuts assembling of axial slope, refer to both after mounting in abutting contact.So The axially activity of base 270 of 273 geo-stationary of axial slope during released state, and then promote rest pad 272 axially oblique Face 273 lifts, and then changes height of the rest pad 272 with respect to base 270, adjusts after finishing again by axial slope 273 and bottom 270 lockings fixed with each other of seat, so as to 800 height of adjustment workpiece, and the demand for adapting to different workpieces.
It is emphasized that the present embodiment is fixed using base 270, and the activity in base 270 of axial slope 273 Structure.Axial slope 273 can also be adopted static, and the axially activity of base 270 is made, and then the structure of rest pad 272 is promoted, but It is that must solved like that is the axial movement error of rest pad 272, it is therefore necessary to set up for rest pad again on base 270 272 axial displacement compensation device, to compensate the axial movement error of rest pad 272, though feasible scheme, cost Gao Qi.
As shown in Figure 5, Figure 9, base 270 includes radial direction slideway 274, axial slideway 275 and slide block 276, radial direction slideway 274 are mutually communicated assembling with axial slideway 275, the relatively radially radially movable assembling of slideway 274 of rest pad 272, and slide block 276 is relative The axially activity assembling of axial slideway 275, slide block 276 includes slide block abutting end 276a and slide block locking end 276b, axial slope 273 Include slider locks pin (in figure is not indicated) and elastic expansion hole 276c positioned at slide block abutting end 276a, slide block locking end 276b, sliding Block stop pin (in figure is not indicated) and elastic expansion hole 276c include swelling lockup state and shrinkage porosite released state.
Because the present embodiment is fixed using base 270, then rest pad 272 is acted on respect to static by axial slope 273 Radial direction slideway 274 radially movable, slider locks pin (in figure is not indicated) is manually-operated.So-called swelling lockup state and Shrinkage porosite released state, its purpose is provided to make slide block 276 axially movable so as to adjustment rest pad 272 with respect to base 270 Height and position, after adjustment is finished, can be by slider locks pin (in figure is not indicated) insertion elastic expansion hole 276c deeply, until elastic expansion 276c expansion in hole is strutted, and is abutted generation friction with the wall of axial slideway 275 and is formed lockup state, needs to change rest pad 272 Highly, it is only necessary to which slider locks pin (in figure is not indicated) pulls away elastic expansion hole 276c, you can make elastic expansion hole 276c shrink, so as to Release the unlocking motion that friction completes slide block 276.

Claims (2)

1. indexing fixture, including clamp body (100), clamp body (100) is with receiving space (900), and clamp body (100) is provided with Bearing apparatus (200) and hold down gag (300), it is characterised in that：
Hold down gag (300) includes pressing plate (310), compression hydraulic cylinder (320), piston rod (330), link rod (340), compresses hydraulic pressure Cylinder (320) and clamp body (100) fixing assembling, piston rod (330) is pressed against hydraulic cylinder (320) axially activity assembling, piston Bar (330) is ordered about axial activity, link rod (340) and the assembling of piston rod (330) axial restraint, link rod by compression hydraulic cylinder (320) (340) and the axially opposing roll adjustment of piston rod (330),
Link rod (340) and the assembling of pressing plate (310) axial restraint, relative link rod (340) the revolution assembling of pressing plate (310), compress hydraulic pressure Cylinder (320) includes piston (321), and piston rod (330) is ordered about axial activity by piston (321), and piston rod (330) includes piston rod Convex shoulder (332), is provided with elastic accumulator (360) between piston rod convex shoulder (332) and piston (321), elastic accumulator (360) and Piston rod convex shoulder (332) abuts assembling, elastic accumulator (360) and piston (321) abuts assembling,
Relative link rod (340) rolling friction of pressing plate (310) is assembled,
With rolling ball body (350) between link rod (340) and pressing plate (310), rolling ball body (350) and link rod (340) abut dress Join, rolling ball body (350) and pressing plate (310) abuts assembling,
Link rod (340) includes lateral pin (349), lateral pin (349) two ends and link rod (340) phase fixing assembling, and rolling ball body (350) is wrapped Through hole (355) is included, lateral pin (349) passes through through hole (355), and rolling ball body (350) can be with respect to lateral pin (349) rolling assembling.
2. indexing fixture according to claim 1, it is characterised in that：Elastic accumulator (360) is butterfly spring.
CN201610969205.XA 2015-01-28 2015-01-28 Indexing fixture Withdrawn CN106425683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610969205.XA CN106425683A (en) 2015-01-28 2015-01-28 Indexing fixture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510043907.0A CN104625871B (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610969205.XA CN106425683A (en) 2015-01-28 2015-01-28 Indexing fixture

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

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Publication Number Publication Date
CN106425683A true CN106425683A (en) 2017-02-22

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

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CN201610960108.4A Withdrawn CN106378664A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610955596.XA Withdrawn CN106363441A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201510043907.0A Active CN104625871B (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610710842.5A Withdrawn CN106217091A (en) 2015-01-28 2015-01-28 Indexing fixture

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CN201610707496.5A Pending CN106181573A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610950737.9A Withdrawn CN106312686A (en) 2015-01-28 2015-01-28 Indexing fixture
CN201610947741.XA Withdrawn CN106346311A (en) 2015-01-28 2015-01-28 Indexing fixture

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CN106346311A (en) 2017-01-25
CN106378664A (en) 2017-02-08
CN106181573A (en) 2016-12-07
CN104625871A (en) 2015-05-20
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CN104625871B (en) 2017-01-04
CN106363441A (en) 2017-02-01

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