CN103817543B - Clamp for clamping circular workpiece - Google Patents
Clamp for clamping circular workpiece Download PDFInfo
- Publication number
- CN103817543B CN103817543B CN201410074618.2A CN201410074618A CN103817543B CN 103817543 B CN103817543 B CN 103817543B CN 201410074618 A CN201410074618 A CN 201410074618A CN 103817543 B CN103817543 B CN 103817543B
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- China
- Prior art keywords
- annular workpiece
- clamp body
- fixture
- slide block
- compressing member
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- 239000012530 fluid Substances 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 10
- 230000008961 swelling Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 abstract 2
- 238000003754 machining Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
- B23B31/4053—Gripping the work or tool by jaws moving radially controlled by conical surfaces using fluid-pressure means to actuate the gripping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
- B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a clamp for clamping a circular workpiece, which comprises a first positioning mechanism for radially expanding the circular workpiece, a second positioning mechanism for axially pressing the circular workpiece, and a synchronizing mechanism connected with the first positioning mechanism and the second positioning mechanism, wherein the synchronizing mechanism is used for synchronously operating the first positioning mechanism and the second positioning mechanism so as to position or release the circular workpiece, and the clamp also comprises a hydraulic driving device which is connected with the synchronizing mechanism so as to drive the synchronizing mechanism to synchronously operate. The hydraulic driving device drives the synchronous mechanism to perform synchronous operation so as to synchronously complete the radial positioning of the first positioning mechanism and the axial positioning of the second positioning mechanism, thereby improving the positioning precision, remarkably reducing the labor intensity of operators, improving the working efficiency and increasing the stability of the clamp for clamping the circular workpieces.
Description
Technical field
The present invention relates to field of machining, particularly, relating to a kind of fixture for clamping annular workpiece.
Background technology
When processing (as turning or grinding) to annular workpiece (particularly the thin annular workpiece of major diameter), usually use three-jaw chuck clamping workpiece to be added.Because the thickness of the very thin annular workpiece of major diameter is little, clamping inconvenience, easily produces crooked in clamping, and major diameter can amplify crooked degree, cause location inaccurate, during turning, the problem that on workpiece end face, allowance is uneven very easily occurs, generation is forged a knife phenomenon, causes part rejection.Therefore, three-jaw chuck is unsuitable for processing large diameter annular workpiece very much.
Summary of the invention
The object of this invention is to provide a kind of fixture for clamping annular workpiece, this fixture can reduce the labour intensity of operating personnel, increases work efficiency.
To achieve these goals, the invention provides a kind of fixture for clamping annular workpiece, this fixture comprises the first detent mechanism for annular workpiece described in radial swelling, for annular workpiece described in axial compression the second detent mechanism and be connected to the lazy-tongs of described first detent mechanism and the second detent mechanism, these lazy-tongs are used for the first detent mechanism and described second detent mechanism described in simultaneously operating, to locate described annular workpiece or to unclamp, and described fixture also comprises fluid pressure drive device, this fluid pressure drive device is connected with described lazy-tongs, simultaneously operating is carried out to drive described lazy-tongs.
Use fixture of the present invention, radial and axial location can be provided to annular workpiece respectively by the first detent mechanism and the second detent mechanism, firmly to clamp annular workpiece, so that the processing such as turning, grinding, by the simultaneously operating of lazy-tongs, can synchronously complete radial and axial location, thus raising positioning precision, and carry out driving synchro structure by using fluid pressure drive device and carry out simultaneously operating, the labour intensity of operating personnel can be reduced significantly, increase work efficiency, increase the steadiness of holder annular workpiece.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the front view of a kind of embodiment of the fixture for clamping annular workpiece of the present invention, wherein eliminates fluid pressure drive device;
Fig. 2 is the sectional view intercepted along Fig. 1 middle polyline A-A, and increases fluid pressure drive device.
Description of reference numerals
1 clamp body 2 slide block 3 stop part
4 first back-moving spring 5 compressing member 6 pull bars
7 tapered sleeve 8 lever 9 eyelet bolts
10 first housing 11 second housing 12 second back-moving springs
13 locating ring 14 annular workpiece 15 apical axis
16 piston 17 cylinder bodies 18 are top
19 pull pin 5a installation portion 5b pressure strip portion
15a patchhole 18a pouring orifice
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to upper and lower, left and right in accompanying drawing, and it is inside and outside that " inside and outside " refers to relative to the profile of each parts own.
See Fig. 1 and Fig. 2, the present invention relates to a kind of fixture (hereinafter referred to as fixture) for clamping annular workpiece, this fixture comprises the first detent mechanism for radial swelling annular workpiece 14, for axial compression annular workpiece 14 the second detent mechanism and be connected to the lazy-tongs of the first detent mechanism and the second detent mechanism, these lazy-tongs are used for simultaneously operating first detent mechanism and the second detent mechanism, to locate annular workpiece 14 or to unclamp, and fixture also comprises fluid pressure drive device, this fluid pressure drive device is connected with lazy-tongs, simultaneously operating is carried out with driving synchro structure.
Use fixture of the present invention, radial and axial location can be provided to annular workpiece 14 respectively by the first detent mechanism and the second detent mechanism, firmly to clamp annular workpiece, so that the processing such as turning, grinding, by the simultaneously operating of lazy-tongs, can synchronously complete radial and axial location, thus raising positioning precision, and carry out driving synchro structure by using fluid pressure drive device and carry out simultaneously operating, the labour intensity of operating personnel can be reduced significantly, increase work efficiency, increase the steadiness of holder annular workpiece.
Wherein, described first detent mechanism provides radial location by applying radial active force to annular workpiece 14.Preferably, the first detent mechanism is used for radial swelling annular workpiece 14, namely applies radially outer power to annular workpiece 14.
Location structure for above-mentioned radial location can adopt various suitable form, as long as radially outer power can be provided to annular workpiece 14, in embodiment as depicted in figs. 1 and 2, first detent mechanism comprises the clamp body 1 for sheathed annular workpiece 14, this clamp body 1 is circumferentially provided with multiple chute, slidably slide block 2 is contained in each chute, under this structure, when the structure simultaneously operating of fluid pressure drive device driving synchro, described slide block 2 can move radially with radial swelling annular workpiece 14 along annular workpiece 14 under the simultaneously operating of lazy-tongs, realize annular workpiece location diametrically.
The power of axial grip for the structure of the second detent mechanism, various suitable form can be adopted equally, as long as can be provided to annular workpiece 14.In the embodiment shown in Fig. 1 and Fig. 2, described second detent mechanism can comprise the first housing 10 and compressing member 5, first housing 10 is connected with the first side of clamp body 1, for an end face against annular workpiece 14.Be appreciated that herein, the diameter of the first housing 10 should be greater than the diameter of clamp body 1, with realize to annular workpiece 14 end face against.Described compressing member 5 is arranged on second side relative with the first side of clamp body 1 movably, described fluid pressure drive device can the simultaneously operating of driving synchro structure, compressing member 5 is moved towards clamp body 1 under the simultaneously operating of lazy-tongs, to match and axial grip annular workpiece 14 with the first housing 10, realize annular workpiece 14 location in the axial direction, now, the first housing 11 acts on two end faces of annular workpiece 14 respectively with compressing member 5.In addition, one preferred embodiment in, described compressing member 5 can rotate, to switch between non-clamping position and clip position.When compressing member 5 switches to clip position, fluid pressure drive device then can the simultaneously operating of driving synchro structure, compressing member 5 is moved towards clamp body 1 under the simultaneously operating of lazy-tongs, to match and axial grip annular workpiece 14 with the first housing 10, realize annular workpiece 14 location in the axial direction.
Can find out, in above-mentioned second detent mechanism, compressing member 5 is mounted to rotating form, when it turns to non-clamping position, compressing member 5 can not contact with annular workpiece 14, is conducive to annular workpiece 14 and is sleeved on clamp body 1 easily, when turning to clip position, compressing member 5 can contact with annular workpiece 14, and applies axial force by the simultaneously operating of lazy-tongs to annular workpiece 14.Be appreciated that, when compressing member 5 does not hinder annular workpiece clamping, compressing member 5 can comprise multiple suitable version, such as, detailed description of the invention shown in composition graphs 1 and Fig. 2, compressing member 5 comprises the installation portion 5a and pressure strip portion 5b that are fixed to one another, and described installation portion 5a to stretch in clamp body 1 and is connected with lazy-tongs (syndeton will be described in more detail below more specifically), described pressure strip portion 5b is provided with flange, for compressing annular workpiece 14.However, compressing member 5 is not limited to this structure.Preferably, the edge of the end face of clamp body 1 is provided with the swivelling chute of the pressure strip portion 5b allowing described compressing member 5, pressure strip portion 5b can not can be contacted with annular workpiece 14 turning to non-clamping position, and for contacting with annular workpiece 14 when turning to clip position.
For the first above-mentioned detent mechanism and the second detent mechanism, as long as the slide block 2 of the first detent mechanism and compressing member 5 movement simultaneously of the second detent mechanism can be made can to carry out radial and axial location to annular workpiece 14 simultaneously.For this reason, various suitable lazy-tongs can be adopted.As depicted in figs. 1 and 2, described lazy-tongs can comprise pull bar 6, tapered sleeve 7, lever 8 and eyelet bolt 9.
Wherein, the first end of pull bar 6 is connected with fluid pressure drive device, so that fluid pressure drive device drives this pull bar 6 to move after running through clamp body 1.In addition, second end relative with first end of pull bar 6 can be connected to the first housing 10 relatively movably, and tapered sleeve 7 is set on pull bar 6 regularly, and slide block 2 is slidably matched with the outer surface of tapered sleeve 7.Under this structure, one end of described lever 8 is articulated with the second end of pull bar 6, the other end of lever 8 is articulated with one end of eyelet bolt 9, and the middle part of lever 8 is articulated with the first housing 10, and the other end of eyelet bolt 9 is connected with compressing member 5 after running through the first housing 10 and clamp body 1 successively.
In the lazy-tongs of above-mentioned detailed description of the invention, lever 8 can rotate around the pin joint of itself and the first housing 10, thus generation leverage, namely, when the pull bar 6 that one end is with it hinged moves facing one direction, the eyelet bolt 9 that the other end is hinged with it carries out the movement contrary with the moving direction of pull bar 6 by being driven by lever 8.Wherein, the articulated position of lever 8 and the first housing 10 and articulated structure can be determined according to actual needs.Such as, lever 8 can directly be hinged on the sidewall of the first housing 10, and see Fig. 2, in this detailed description of the invention, described first housing 10 is fixed with hinged seat (sign), and lever 8 is by being hinged on the articulated structure that this hinged seat realizes in the middle part of it.Under these lazy-tongs, the installation portion 5a of compressing member 5 then stretches in clamp body 1 and is set on eyelet bolt 9.
According to above-mentioned lazy-tongs, described fluid pressure drive device can drive pull bar 6 to move, move to drive tapered sleeve 7 along the axial linear of annular workpiece 14 and drive eyelet bolt 9 to move by the leverage of lever 8, make by tapered sleeve 7 and being slidably matched of slide block 2 and promote slide block 2 moving radially along annular workpiece 14, and drive compressing member 5 to move axially towards clamp body 1 by eyelet bolt 9, like this, under the effect of slide block 2 and compressing member 5, complete the radial location to annular workpiece 14 and axial location.
For above-mentioned lazy-tongs, the present invention makes hydraulically to drive pull bar 6 to move, and not only can reduce the working strength of operating personnel, increase work efficiency, and can ensure that annular workpiece 14 is fully clamped in the axial direction well.See Fig. 2, described fluid pressure drive device can comprise apical axis 15, piston 16 and cylinder body 17, but is not limited to these parts.
Wherein, described apical axis 15 is fixedly connected with clamp body 1, piston 16 to be fixedly set on apical axis 15 and to be resisted against on clamp body 1, simultaneously, cylinder body 17 is set on apical axis 15 and by 19 being connected with pull bar 6 radially across pulling pin of apical axis 15, like this, cylinder body 17 is connected with piston 16 and forms oil pocket, or rather, described oil pocket is surrounded by apical axis 15, piston 16 and cylinder body 17 three.When pressure oil injects oil pocket, cylinder body 17 moves relative to piston 16 and 19 pull bar 6 just can be driven to move by pulling pin under the effect of pressure oil on apical axis 15.
For ease of injection pressure oil, fluid pressure drive device can also comprise top 18, and this top 18 comprises pouring orifice 18a, and top 18 comprise oil filler and the first oil circuit, and the first oil circuit connects pouring orifice 18a; And the end of apical axis 15 is provided with patchhole 15a and the second oil circuit, and the second oil circuit is communicated in oil pocket; When top 18 insert patchhole 15a, the first oil circuit is connected with the second oil circuit, is injected into oil pocket to make the pressure oil injected from pouring orifice 18a by the first oil circuit and the second oil circuit.Wherein, insert the end of apical axis 15 by top 18, be conducive to firmly top 18.When not hindering cylinder body 17 to move, during a kind of modification is implemented, also patchhole can be set on top 18, and the end of apical axis 15 is inserted the patchhole of top 18, can firmly engage with apical axis 15 to make top 18, and the first oil circuit is connected with the second oil circuit, be injected into oil pocket to make the pressure oil injected from pouring orifice 18a by the first oil circuit and the second oil circuit.
Preferably, in above-mentioned clamp structure, compressing member 5 can adopt various suitable form, as long as can provide axial force to annular workpiece 14 and the dress not affecting annular workpiece 14 is got.Meanwhile, for multi-form compressing member 5, suitable lazy-tongs can be taked, in order to promote compressing member 5.
See Fig. 1, multiple compressing members 5 that fixture of the present invention preferably includes multiple lever 8, multiple eyelet bolt 9 and arranges along annular workpiece 14 circumference.Concrete syndeton is, one end of each lever 8 is articulated with the second end of pull bar 6, the middle part of each lever 8 is articulated with the first housing 10, and the other end of each lever 8 is articulated with one end of corresponding eyelet bolt 9, the other end of corresponding eyelet bolt 9 runs through the first housing 10 successively and is connected with corresponding compressing member 5 with after clamp body 1, under this structure, a lever 8 and an eyelet bolt 9 promote a compressing member 5 accordingly and move.Further, as shown in Figure 1, multiple eyelet bolts 9 and multiple slide block 2 stagger along the circumference of annular workpiece 14 and arrange, to avoid interfering or stop etc.Wherein, in the first detent mechanism, the number of slide block 2 and the number of compressing member 5 can be identical or different, as long as can realize radial swelling equably by multiple slide block 2 and implement axial compression equably by multiple compressing member 5.In the embodiment shown in Fig. 1, the quantity of compressing member 5 is four, and slide block 2 is also four, and compressing member 5 and slide block 2 are along the circumference angularly compartment of terrain setting interlaced with each other of annular workpiece 16.Understandably, also each compressing member 5, slide block 2 otherwise can be crisscross arranged, as long as be convenient to realize location and do not interfere.
As previously mentioned, slide block 2 radially outward moves, the radial location for swelling annular workpiece 14.After machining annular workpiece 14, slide block 2 is needed radially-inwardly to move, so that annular workpiece 14 taken out from fixture.Thus, for easy to operate, fixture can also comprise the resetting-mechanism resetted for slide block 2, and this resetting-mechanism both can be arranged between slide block 2 and the first housing 10, and also can be arranged between slide block 2 and clamp body 1, the present invention is not construed as limiting this.
As shown in Figure 2, resetting-mechanism is arranged between slide block 2 and clamp body 1, particularly, described resetting-mechanism can comprise stop part 3 and the first back-moving spring 4, be provided with mounting groove in slide block 2, the first back-moving spring 4 is contained in mounting groove, and one end of stop part 3 is fixed on clamp body 1, the other end and first back-moving spring 4 of stop part 3 abut against, and can provide radially-inwardly moving with the restoring force unclamping annular workpiece 14 along annular workpiece 14 to slide block 2.Wherein, described stop part 3 can be the various parts that can be connected with the first back-moving spring 4 for backstop, and such as plate or straight pin etc., mainly adopt straight pin in present embodiment, but be not limited to straight pin.From above-mentioned resetting-mechanism, when annular workpiece 14 is sleeved on after on clamp body 1, pull bar 6 can move right in fig. 2 by driving, slide block 2 is radially outward swelling under the effect of tapered sleeve 7, with to annular workpiece 14 radial location, due to the movement of slide block 2, relatively, stop part 3 in other words straight pin then compress the first back-moving spring 4 downwards; When pull bar 6 is moved to the left in fig. 2, slide block 2 is no longer by the effect that tapered sleeve 7 outwards extrudes, thus radially-inwardly can move under the effect of the first back-moving spring 4, the swelling effect of release slider 2 pairs of annular workpiece 14 thus, now, just easily annular workpiece 14 can be taken off from clamp body 1.
In addition, for compressing member 5, resetting structure is needed equally.Compressing member 5 comprises installation portion 5a and pressure strip portion 5b as previously mentioned, installation portion 5a to stretch in clamp body 1 and is set on eyelet bolt 9, therefore, under this structure, the second back-moving spring 12 resetted for compressing member 5 can be provided with between the first housing 10 and installation portion 5a.Namely when annular workpiece 14 is sleeved on after on clamp body 1, pull bar 6 can move right in fig. 2 by driving, and eyelet bolt 9 is moved to the left by the leverage of lever 8, thus tension is connected compressing member 5 with eyelet bolt 9, compresses the second back-moving spring 12 simultaneously; When pull bar 6 is moved to the left in fig. 2, eyelet bolt 9 is no longer by the pulling function of lever 8, compressing member 5 can be discharged thus under the effect of the second back-moving spring 12, finally, rotate compressing member 5, make the flange of its pressure strip portion 5b avoid annular workpiece 14, so just can take off annular workpiece 14 from clamp body 1.
In addition, fixture of the present invention can also comprise the second housing 11 be removably connected with the first housing, so that install fixture of the present invention.Particularly, during sectional fixture, first the second housing 11 can be assembled to (hold assembly of such as lathe) on associated components, and then fixture be arranged on the first housing 10 and be arranged on the second housing 11, to encapsulate associated components (as pull bar 6, lever 8 etc.).And, in the above-described embodiment, can by the first housing 10 being arranged to the diameter that diameter is greater than clamp body 1, to carry out pre-determined bit to annular workpiece 14.Preferably, with clamp body 1 adjoining position, locating ring 13 can also can be set, to carry out pre-determined bit by locating ring 13 at the first housing 10.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. one kind for clamping the fixture of annular workpiece, it is characterized in that, described fixture comprises the first detent mechanism for annular workpiece (14) described in radial swelling, for annular workpiece described in axial compression (14) the second detent mechanism and be connected to the lazy-tongs of described first detent mechanism and the second detent mechanism, these lazy-tongs are used for the first detent mechanism and described second detent mechanism described in simultaneously operating, to locate described annular workpiece (14) or to unclamp, and described fixture also comprises fluid pressure drive device, this fluid pressure drive device is connected with described lazy-tongs, simultaneously operating is carried out to drive described lazy-tongs, described first detent mechanism comprises the clamp body (1) for sheathed described annular workpiece (14), this clamp body (1) is circumferentially provided with multiple chute, slidably slide block (2) is contained in each described chute, described fluid pressure drive device can drive described lazy-tongs simultaneously operating, described slide block (2) moving radially with annular workpiece (14) described in radial swelling along described annular workpiece (14) under the simultaneously operating of described lazy-tongs.
2. the fixture for clamping annular workpiece according to claim 1, it is characterized in that, described second detent mechanism comprises the first housing (10) and compressing member (5), described first housing (10) is connected with the first side of described clamp body (1), for an end face against described annular workpiece (14), described compressing member (5) is arranged on second side relative with described first side of described clamp body (1) movably, described fluid pressure drive device can drive described lazy-tongs simultaneously operating, described compressing member (5) is mobile towards described clamp body (1) under the simultaneously operating of described lazy-tongs, to match and annular workpiece described in axial grip (14) with described first housing (10).
3. the fixture for clamping annular workpiece according to claim 2, it is characterized in that, and described compressing member (5) can rotate, to switch between non-clamping position and clip position, and at described clip position, described fluid pressure drive device can drive described lazy-tongs simultaneously operating, described compressing member (5) is mobile towards described clamp body (1) under the simultaneously operating of described lazy-tongs, to match and annular workpiece described in axial grip (14) with described first housing (10).
4. the fixture for clamping annular workpiece according to claim 2, is characterized in that, described lazy-tongs comprise pull bar (6), tapered sleeve (7), lever (8) and eyelet bolt (9),
The first end of described pull bar (6) runs through described clamp body (1) and is connected with described fluid pressure drive device afterwards, second end relative with described first end of described pull bar (6) can be connected to described first housing (10) relatively movably, described tapered sleeve (7) is set on described pull bar (6) regularly, described slide block (2) is slidably matched with the outer surface of described tapered sleeve (7)
One end of described lever (8) is articulated with the second end of described pull bar (6), the other end of described lever (8) is articulated with one end of described eyelet bolt (9), and the middle part of described lever (8) is articulated with described first housing (10), the other end of described eyelet bolt (9) runs through described first housing (10) successively and is connected with described compressing member (5) afterwards with described clamp body (1)
Described fluid pressure drive device can drive described pull bar (6) mobile, move to drive described tapered sleeve (7) along the axial linear of described annular workpiece (14) and driven by the leverage of described lever (8) described eyelet bolt (9) mobile, make by described tapered sleeve (7) and being slidably matched of described slide block (2) and promote described slide block (2) moving radially along described annular workpiece (14), and drive described compressing member (5) to move axially towards described clamp body (1) by described eyelet bolt (9).
5. the fixture for clamping annular workpiece according to claim 4, it is characterized in that, described fixture comprises multiple described lever (8), multiple described eyelet bolt (9) and the multiple described compressing member (5) arranged along described annular workpiece (14) circumference, one end of each described lever (8) is articulated with the second end of described pull bar (6), the middle part of each described lever (8) is articulated with described first housing (10), and the other end of each described lever (8) is articulated with one end of corresponding described eyelet bolt (9), the other end of corresponding described eyelet bolt (9) runs through described first housing (10) successively and is connected with corresponding described compressing member (5) afterwards with described clamp body (1), and multiple described eyelet bolt (9) and multiple described slide block (2) are staggered along the circumference of described annular workpiece (14) and are arranged.
6. the fixture for clamping annular workpiece according to claim 2, it is characterized in that, described fixture also comprises the resetting-mechanism resetted for described slide block (2), this resetting-mechanism is arranged between described slide block (2) and described first housing (10), or is arranged between described slide block (2) and described clamp body (1).
7. the fixture for clamping annular workpiece according to claim 6, it is characterized in that, described resetting-mechanism is arranged between described slide block (2) and described clamp body (1), and described resetting-mechanism comprises stop part (3) and the first back-moving spring (4), described slide block is provided with mounting groove in (2), described first back-moving spring (4) is contained in described mounting groove, one end of described stop part (3) is fixed on described clamp body (1), the other end and described first back-moving spring (4) of described stop part (3) abut against, for providing radially-inwardly moving with the restoring force unclamping described annular workpiece (14) along described annular workpiece (14) to described slide block (2).
8. the fixture for clamping annular workpiece according to claim 2, it is characterized in that, described compressing member (5) comprises the installation portion (5a) and pressure strip portion (5b) that are fixed to one another, described installation portion (5a) to stretch in described clamp body (1) and is set on described eyelet bolt (9), described pressure strip portion (5b) is provided with the flange for compressing described annular workpiece (14), and be provided with the second back-moving spring (12) resetted for described compressing member (5) between described first housing (10) and described installation portion (5a).
9. the fixture for clamping annular workpiece according to any one of claim 4 to 8, it is characterized in that, described fluid pressure drive device comprises apical axis (15), piston (16) and cylinder body (17), described apical axis (15) is fixedly connected with described clamp body (1), described piston (16) is fixedly set in described apical axis (15) and goes up and be resisted against on described clamp body (1), described cylinder body (17) is set in described apical axis (15) and goes up and pull pin (19) passed through radially across described apical axis (15) are connected with described pull bar (6), described cylinder body (17) is connected with described piston (16) and forms oil pocket, when pressure oil injects described oil pocket, described cylinder body (17) moves relative to described piston (16) under the effect of described pressure oil on described apical axis (15) and pull pin described in passing through (19) drive described pull bar (6) mobile.
10. the fixture for clamping annular workpiece according to claim 9, it is characterized in that, described fluid pressure drive device also comprises top (18), these top (18) comprise pouring orifice (18a), described top (18) comprise oil filler and the first oil circuit, and described first oil circuit connects described pouring orifice (18a); And the end of described apical axis (15) is provided with patchhole (15a) and the second oil circuit, and described second oil circuit is communicated in described oil pocket; When described top (18) insert described patchhole (15a), described first oil circuit is connected with described second oil circuit, is injected into described oil pocket to make the pressure oil injected from described pouring orifice (18a) by described first oil circuit and described second oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410074618.2A CN103817543B (en) | 2014-03-03 | 2014-03-03 | Clamp for clamping circular workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410074618.2A CN103817543B (en) | 2014-03-03 | 2014-03-03 | Clamp for clamping circular workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103817543A CN103817543A (en) | 2014-05-28 |
| CN103817543B true CN103817543B (en) | 2016-03-23 |
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| CN201410074618.2A Active CN103817543B (en) | 2014-03-03 | 2014-03-03 | Clamp for clamping circular workpiece |
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| CN (1) | CN103817543B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801785A (en) * | 2015-03-30 | 2015-07-29 | 江苏太平洋齿轮传动有限公司 | Radial positioning type external gear ring gear shaping clamp |
| CN105142326B (en) * | 2015-08-26 | 2018-02-23 | 中国工程物理研究院流体物理研究所 | Support meanss |
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| CN201073738Y (en) * | 2007-09-17 | 2008-06-18 | 济南一机床集团有限公司 | Lathe fixture |
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|---|---|
| CN103817543A (en) | 2014-05-28 |
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