CN208773074U - One kind can indexing hydroelastic system fixture - Google Patents

Abstract

It can indexing hydroelastic system fixture the utility model relates to one kind, including pedestal and fixture shell, clamp system, indexing mechanism and retaining mechanism are equipped in fixture shell, clamp system includes piston cylinder, piston is equipped in piston cylinder, top land is installed with elastic collet, and piston cylinder bottom is installed with piston end cap；Indexing mechanism includes worm gear, worm screw and plane bearing, piston end cap between plane bearing and fixture inner walls by being in close contact, piston end cap is equipped with worm gear by lower part, worm screw is rotatably interspersed in fixture housing right side wall, worm screw one end is rotatably located at fixture inner walls, the other end extends to outside fixture shell and connects a motor by shaft coupling, worm screw and fixture housing right side wall junction are equipped with retaining mechanism, structure is simple, the adjusting of sub-degree angle is realized while the clamp system of Normal hydraulic spring chuck is merged with rotary index mechanism, indexing accuracy is high, and there is self-locking performance, position is reliable after guarantee rotation segmentation angle.

Description

One kind can indexing hydroelastic system fixture

Technical field

The utility model relates to a kind of hydraulically operated fixture equipment, and in particular to one kind can indexing hydroelastic system fixture.

Background technique

Fixture is used to fix processing object during referring to machine-building, is allowed to occupy correct position, to receive construction Or the device of detection.In a broad sense, any process in technical process, for rapidly, workpiece is easily and safely installed Device all can be described as fixture.

Currently, hydraulically operated fixture is many kinds of on the market, but to sum up can be attributed to two classes: one kind be after hydraulic clamp not It is able to carry out indexing or rotation process, to realize that perhaps rotation process can only additionally configure slewing or indexing for indexing It is complicated to lead to equipment overall structure for equipment, and the combination between distinct device causes the overall accuracy of fixture to reduce；It is another kind of to be Rotation while can be realized clamping, but such hydraulically operated fixture can only guarantee continuously to rotate, and can not achieve the function of indexing.Cause And it needs to realize the manufacture field (such as processing several circular holes on a certain circumference) for needing to index while clamping certain Special fixture be necessary.

Utility model content

In view of this, the utility model disclose one kind can indexing hydroelastic system fixture, drilling machine or milling can be cooperated For bed in conplane indexing drilling or Milling Process, indexing accuracy is high and has self-locking row, guarantees angle after rotary index Position it is constant.

The utility model provide one kind can indexing hydroelastic system fixture, including a pedestal and it is fixed on the base The fixture shell of side, the fixture shell are interior equipped with superposed clamp system, the indexing mechanism positioned at lower part and locking machine Structure, the indexing mechanism can realize that the clamp system rotates at any angle, and the retaining mechanism can realize the dividing engine Structure is locked, and keeps the winged degree position of the clamp system constant；

The clamp system includes a piston cylinder, is equipped with a piston moving up and down, the piston in the piston cylinder Top is fixed with the elastic collet of an elastically deformable, passes through at the top of the piston cylinder and extends at the top of the elastic collet Outside the piston cylinder, the piston cylinder bottom is fixed with a piston end cap；

The indexing mechanism includes a worm gear, a worm screw and a plane bearing, and the piston end cap passes through the plane axis It holds and is in close contact between the fixture inner walls, the piston end cap is equipped with the worm gear by lower part, and the fixture shell is right Rotatably intert a worm screw that connection is engaged with the worm gear in side wall, described worm screw one end is rotatably located at the fixture Inner walls, the other end extend to outside the fixture shell and connect a motor, the worm screw and the fixture shell by shaft coupling Body right side wall junction is equipped with the retaining mechanism.

Further, the elastic collet, the piston and piston cylinder formation first annular seal space room, the piston, The piston cylinder and the piston end cap form the second sealed chamber, and top is symmetrically arranged in the piston cylinder side wall as opening First hydraulic fluid port oil duct and the second hydraulic fluid port oil duct, the first hydraulic fluid port oil duct other end is connected to the first annular seal space room, described The second hydraulic fluid port oil duct other end is connected to second sealed chamber.

Further, the piston end cap includes the round boss and round bar of integrated setting, the lower end of the round bar Equipped with screw thread, the worm gear set is equipped with abutment sleeve, institute on the round bar between the worm gear upper end and the round boss It states worm gear lower thread and connects a locking nut.

Further, it is installed with first bearing end cap and second bearing respectively in wall at left and right sides of the fixture lower part of the housing End cap is installed with one first swivel bearing on the inside of the first bearing end cap, and one the is installed on the inside of the second bearing end cap Two swivel bearings, described worm screw one end are fixed in first swivel bearing after passing through second swivel bearing.

Further, the retaining mechanism includes an electromagnetic brake fixing seat, shaft flange, armature and electromagnetic coil, described Electromagnetic brake fixing seat is fixedly arranged on the outside of the second bearing end cap, the fixed electromagnetic wire in the electromagnetic brake fixing seat Circle, the shaft flange are flexibly connected with the electromagnetic brake fixing seat, the fixed armature on the shaft flange, when the electromagnetism When coil is powered, the armature is fitted closely with the electromagnetic brake fixing seat, when the electromagnetic coil no power, the rank Iron reset is not contacted with the electromagnetic brake fixing seat.

Further, reinforced seal is equipped between the worm screw and second swivel bearing.

Further, the motor bottom is equipped with motor cabinet.

Technical solution provided by the utility model has the benefit that the clamp system of hydroelastic system fixture and rotation Turn indexing mechanism and combine installation, not only indexing accuracy is high, and self-locking, the guarantee after angle-differentiated may be implemented using electromagnetic brake Position is stablized after clamp system rotation segmentation angle, compact overall structure, and structure is simple and practical.

Detailed description of the invention

Fig. 1 be the utility model one kind can indexing hydroelastic system fixture top view；

Fig. 2 is the A-A cross-sectional view in Fig. 1；

Fig. 3 is the side view of Fig. 1；

Fig. 4 is the B-B cross-sectional view in Fig. 3.

In figure:

1, pedestal 2, fixture shell 3, piston cylinder 4, piston 5, elastic collet 6, piston end cap 61, boss 62, circle Bar 7, worm gear 8, worm screw 9, plane bearing 10, shaft coupling 11, motor 12, the first hydraulic fluid port oil duct 13, the second hydraulic fluid port oil duct 14, abutment sleeve 15, locking nut 16, the first swivel bearing 17, the second swivel bearing 18, electromagnetic brake fixing seat 19, Shaft flange 20, armature 21, electromagnetic coil 22, reinforced seal 23, motor cabinet 24, first bearing end cap 25, second bearing End cap.

Specific embodiment

It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is further described.

Please refer to Fig. 1 and Fig. 2, the embodiments of the present invention disclose one kind can indexing hydroelastic system fixture, including One pedestal 1 and the fixture shell 2 for being fixed on 1 upside of pedestal, are cavity in the fixture shell 2, in the fixture shell 2 Equipped with superposed clamp system, positioned at the indexing mechanism and retaining mechanism of lower part, the indexing mechanism can realize the folder Tight mechanism rotates at any angle, and the retaining mechanism can realize being locked for the indexing mechanism, keep the clamping machine The winged degree position of structure is constant；

The clamp system includes a piston cylinder 3, is equipped with a piston 4 moving up and down, the work in the piston cylinder 3 4 top of plug is fixed with the elastic collet 5 of an elastically deformable, and 3 top of piston cylinder is passed through at the top of the elastic collet 5 simultaneously It extends to outside the piston cylinder 3,3 bottom of piston cylinder is fixed with a piston end cap 6, the elastic collet 5, the piston 4 and the piston cylinder 3 form first annular seal space room, the piston 4, that the piston cylinder 3 and the piston end cap 6 form second is close Chamber is sealed, top is symmetrically arranged in 3 side wall of piston cylinder as the first hydraulic fluid port oil duct 12 and the second hydraulic fluid port oil duct 13 of opening, institute It states 12 other end of the first hydraulic fluid port oil duct to be connected to the first annular seal space room, 13 other end of the second hydraulic fluid port oil duct and described The connection of two sealed chambers, thus when oil inlet to first annular seal space room in the first hydraulic fluid port oil duct 12, effect of the piston 4 in hydraulic coupling Under move downward the elastic collet 5 driven to move downward, since there are one between the elastic collet 5 and the piston cylinder 3 A conical surface contact, so that elastic collet 5 is made to generate elastic deformation, the folder generated using the elastic deformation of the elastic collet 5 Clamp force clamps workpiece, and when hydraulic oil enters to second sealed chamber from the second hydraulic fluid port oil duct 13, piston 4 is in hydraulic coupling It is moved upwards under effect and the elastic collet 5 is driven to move upwards, the elastic collet 5 restores elasticity, and clamping force disappears.

The indexing mechanism includes a worm gear 7, a worm screw 8 and a plane bearing 9, and 4 end cap of piston passes through described flat It is in close contact between spherical bearing 9 and 2 inner wall of fixture shell, the piston end cap 6 is equipped with the worm gear 7, the folder by lower part Rotatably intert a worm screw 8 that connection is engaged with the worm gear 7 in tool 2 right side wall of shell, described 8 one end of worm screw can be rotated It is located at 2 inner wall of fixture shell, the other end extends to outside the fixture shell 2 and connects a motor 11 by shaft coupling 10, In the present embodiment, the piston end cap 6 includes the boss 61 and round bar 62 of integrated setting, the boss 61 of the piston end cap 6 On be closely arranged the plane bearing 9 and be in close contact with 2 inner wall of fixture shell, when such piston end cap 6 rotates It drives the piston cylinder 3 to rotate, and then realizes the unitary rotation of the clamp system, the lower end of the round bar 62 is equipped with spiral shell Line, 7 sets of the worm gear on the round bar 62, are additionally provided with keyway on the round bar 62, the worm gear 7 is placed in by a flat key It is fixedly mounted in the keyway with the round bar 62, thereby guarantees that between turbine 7 and the round bar 62 to be not in opposite sliding, and Abutment sleeve 14 is equipped between 7 upper end of worm gear and the boss 61,7 lower thread of worm gear connects a locking nut 15, It is possible thereby to which worm gear 7 is fixed, while being also convenient for dismantling the worm gear into 7 rows.

It is installed with first bearing end cap 24 and second bearing end cap respectively in wall at left and right sides of 2 lower part of fixture shell 25, one first swivel bearing 16 is installed on the inside of the first bearing end cap 24, first swivel bearing 16 is angular contact ball Bearing can bear radial load and axial load simultaneously, and can work at higher rotational speeds, in the second bearing end cap 25 Side is installed with one second swivel bearing 17, and described 8 one end of worm screw is fixed on described first after passing through second swivel bearing 17 In swivel bearing 16, the other end connects a motor by shaft coupling 10, and connection is engaged between the worm screw 8 and worm gear 7, electric in this way Machine 11 will drive the rotation of worm screw 8 when rotating, and then worm gear 7 is driven to rotate, to realize turn of piston end cap 6 and clamp system It is dynamic, by inputted in motor control assembly need the degree indexed or sent to motor 11 needed for the corresponding umber of pulse of indexing, The rotation angle of clamping device can be controlled.

Fig. 3 and Fig. 4 are please referred to, the worm screw 8 is equipped with the retaining mechanism with the 2 right side wall junction of fixture shell, The retaining mechanism includes an electromagnetic brake fixing seat 18, shaft flange 19, armature 20 and electromagnetic coil 21, and the electromagnetic brake is solid Reservation 18 is fixedly arranged on the outside of the second bearing end cap 25, the fixed electromagnetic coil 21 in the electromagnetic brake fixing seat 18, The shaft flange 19 is flexibly connected with the electromagnetic brake fixing seat 18, and the fixed armature 20, works as institute on the shaft flange 19 When stating 21 no power of electromagnetic coil, the reset of armature 20 is not contacted with the electromagnetic brake fixing seat 18, thus the worm screw 8 It can provide power without hindrance any rotation by motor 11, rotate specified angle to motor 11 and complete the electromagnetism after indexing When coil 21 is powered, the armature 20 is rapidly fitted closely with the electromagnetic brake fixing seat 18, so that the clamp system Indexing position is kept, realizes the postrotational fixation of angle, while being equipped with lubrication in the worm gear 7 and the chamber of the worm screw 8 Oil avoids the mill of each contact surface, it can be achieved that lubrication to the worm gear 7, the worm screw 8 and first swivel bearing 16 Damage, while the effect also to cool.

Further, it is equipped with reinforced seal 22 between the worm screw 8 and second swivel bearing 17, guarantees second rotation Shaft is held 17 and is isolated with external environment, is unlikely to allow oil seepage.

Further, 11 bottom of motor is equipped with motor cabinet 23, guarantees at work steady of motor 11.

Specific embodiment described in the utility model is only to give an example to the spirit of the present invention.This is practical Novel person of ordinary skill in the field can make various modifications or additions to the described embodiments or adopt It is substituted with similar mode, but without departing from the spirit of the present application or surmounts model defined in the appended claims It encloses.

In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (7)

1. one kind can indexing hydroelastic system fixture, it is special including a pedestal and the fixture shell that is fixed on the upside of the pedestal Sign is:

It is equipped with superposed clamp system, indexing mechanism and retaining mechanism positioned at lower part in the fixture shell, described point Degree mechanism can realize that the clamp system rotates at any angle, and the retaining mechanism can realize that the locking of the indexing mechanism is solid It is fixed, keep the winged degree position of the clamp system constant；

The clamp system includes a piston cylinder, is equipped with a piston moving up and down, the top land in the piston cylinder It is fixed with the elastic collet of an elastically deformable, passed through at the top of the piston cylinder at the top of the elastic collet and is extended to described Outside piston cylinder, the piston cylinder bottom is fixed with a piston end cap；

The indexing mechanism include a worm gear, a worm screw and a plane bearing, the piston end cap by the plane bearing with It is in close contact between the fixture inner walls, the piston end cap is equipped with the worm gear, the fixture housing right side wall by lower part Inside rotatably intert a worm screw that connection is engaged with the worm gear, described worm screw one end is rotatably located at the fixture shell Inner wall, the other end extend to outside the fixture shell and connect a motor by shaft coupling, and the worm screw and the fixture shell are right Side wall junction is equipped with the retaining mechanism.

2. one kind as described in claim 1 can indexing hydroelastic system fixture, it is characterised in that: the elastic collet, the work Plug and the piston cylinder form first annular seal space room, and the piston, the piston cylinder and the piston end cap form the second sealing Chamber, top is symmetrically arranged in the piston cylinder side wall as the first hydraulic fluid port oil duct and the second hydraulic fluid port oil duct of opening, and described first The hydraulic fluid port oil duct other end is connected to the first annular seal space room, the second hydraulic fluid port oil duct other end and second sealed chamber Connection.

3. one kind as described in claim 1 can indexing hydroelastic system fixture, it is characterised in that: the piston end cap includes one Change the boss and round bar of setting, the lower end of the round bar is equipped with screw thread, and the worm gear set is on the round bar, and the worm gear Abutment sleeve is equipped between upper end and the boss, the worm gear lower thread connects a locking nut.

4. one kind as described in claim 1 can indexing hydroelastic system fixture, it is characterised in that: described fixture lower part of the housing or so First bearing end cap and second bearing end cap are installed in two sidewalls respectively, is installed with one first on the inside of the first bearing end cap Swivel bearing, the second bearing end cap inside are installed with one second swivel bearing, and described worm screw one end passes through second rotation Shaft is fixed in first swivel bearing after holding.

5. one kind as claimed in claim 4 can indexing hydroelastic system fixture, it is characterised in that: the retaining mechanism includes an electricity Magnetic brake fixing seat, shaft flange, armature and electromagnetic coil, the electromagnetic brake fixing seat are fixedly arranged on outside the second bearing end cap Side, the fixed electromagnetic coil in the electromagnetic brake fixing seat, the shaft flange and the electromagnetic brake fixing seat activity connect It connects, the fixed armature on the shaft flange, when the electromagnetic coil is powered, the armature and the electromagnetic brake fixing seat It fits closely, when the electromagnetic coil no power, the armature reset is not contacted with the electromagnetic brake fixing seat.

6. one kind as claimed in claim 4 can indexing hydroelastic system fixture, it is characterised in that: the worm screw and second rotation Shaft is equipped with reinforced seal between holding.

7. one kind as described in claim 1 can indexing hydroelastic system fixture, it is characterised in that: the motor bottom is equipped with motor Seat.