CN103658494A

CN103658494A - Holder for a joining device

Info

Publication number: CN103658494A
Application number: CN201310552741.6A
Authority: CN
Inventors: M·施耐德; A·波尔
Original assignee: Newfrey LLC
Current assignee: Newfrey LLC
Priority date: 2012-08-30
Filing date: 2013-08-30
Publication date: 2014-03-26
Also published as: TW201429578A; JP2014046365A; KR20140029221A; EP2703099A1; DE102012108031A1; EP2703099B1

Abstract

In a holder having a first arm (2) and having a second arm (3) that is connected by a swivel joint (4) to the first arm (2) such that it can rotate about an axis (A), the free end of the first arm (2) has a receptacle (9) for a joining device, and the free end of the second arm (3) has a receptacle (14) for a mating tool cooperating with the joining device. The position of the first arm (2) relative to the second arm (3) can be adjusted, at the swivel joint (4), in the longitudinal direction of the axis (A) by means of a first adjusting device and can be adjusted in a Y direction perpendicular to the axis (A) by means of a second adjusting device.

Description

The retainer of engagement device

Technical field

The present invention relates to a kind of retainer of engagement device, there is the first arm and the second arm, this second arm can threaded shaft by revolute pair and the first arm is rotationally connected and at two arms, keep being fixed to one another the framework that forms a C shape on the operating position that supporting predetermines with this first arm, wherein, the free end of the first arm has an engagement device hold place and the free end of the second arm have the place that holds with the coefficient corresponding instrument of engagement device.

Background technology

The retainer of described type for hold Production Example as rivet connects, punching is riveting to connect etc. and engages the engagement device connecting.This engagement device has the corresponding instrument with the drift of drive unit and for example base form.Drift and base remain on coaxially to each other on retainer and are bearing in the reaction force occurring in engaging process.Coaxial orientation to drift and base has very high requirement, because intensity and outward appearance that the joint of manufacturing connects depend on this to a great extent.The coaxial orientation of engagement device and corresponding instrument must engage on the operating position being connected and form in manufacture.For making engagement device near fastener and leaving this fastener, retainer can utilize its revolute pair to produce other shapes, by this shape, expand the distance between engagement device and corresponding instrument, to can make it from lug boss or other barrier bypass mistakes in region, junction.

US1404126 discloses a kind of riveting set with the described type retainer of beginning.The instrument of riveting set is disalignment in this case, but arranges at an angle to each other.But also cause in this case the composition surface of instrument accurately relative each other in engaging process, to guarantee the homogeneous deformation of rivet.

EP1163963B1 discloses a kind of riveting machine of gap frame substantially that has, and this framework has movable drift and on the second end, has base retainer together with the base of disposed thereon on the first end.Base retainer is bearing in movingly on framework and can in primary importance relative with drift during fixation procedure, moves to from base the second place of base distance between the position away from drift enlarged base and drift.In this manner, additional space can be for larger and more complicated workpiece being inserted to frame openings and therefrom taking out.Rotatable being bearing on an axle journal and in its bottom surface of base retainer has auxiliary locator, and base retainer utilizes this auxiliary locator in the operating position for combination, to enter the position that is applicable to absorb drift pressure.

Document DE19743277A1 has introduced a kind of auxiliary adjusting device of engagement device, wherein for keeping, in the accommodation hole on arm of gap frame of punch tool, two eccentric bush is set.Eccentric bush has the identical degree of eccentricity and utilizes hook spanner relative torsion for adjustment axiality or for compensating concentric error.The turned position that eccentric bush is adjusted is by packing the screw stop in milling position on eccentric bush circumference into.

Summary of the invention

Technical problem to be solved by this invention is, a kind of retainer that starts described type is provided, and the same axial adjustment that wherein engagement device and corresponding instrument hold place can simply be carried out and can realize inexpensively.Meanwhile, must guarantee that the axiality of adjusting is lasting and remain unchanged when the arm motion of retainer.

Described technical problem solves by a kind of retainer of engagement device, according to retainer of the present invention, there is the first arm and the second arm, this second arm by revolute pair can threaded shaft be rotationally connected with the first arm and with this first arm for engaging the framework that forms a C shape on the operating position of setting, two arm supportings mutually regularly on this operating position, wherein, the free end of the first arm have engagement device hold place and the free end of the second arm have locate with holding of the coefficient corresponding instrument of engagement device and wherein the first arm with respect to the position of the second arm, can in revolute pair, by the first adjusting device, the vertical of described axle, adjust upward.

By revolute pair, according to adjustable of the present invention, the arm that retainer is made separately of each other can be adjusted in one direction according to plain mode when assembling in revolute pair.Therefore can the not too strict and larger machining tolerance of permission to the requirement of retainer different piece machining accuracy.Axial adjustment on rolling bearing can utilize simple adjusting device to carry out and only need a small amount of supernumerary structure spending.

According to another suggestion of the present invention, the first arm can adjust upward in square with the axis side by the second adjusting device with respect to the position of the second arm in revolute pair in addition.By this second, adjust possibility, the instrument of the first arm holds place can be adjusted with the relative position that the instrument of the second arm holds place on two direction in spaces that are perpendicular to one another, thereby on arm, is that the place that holds that engagement device and corresponding instrument are determined can be to engage on the operating position of predetermining very accurately to adjust coaxially to each other.

In a kind of preferred formation of framework, the first arm has the first supporting section with the fork-shaped of two supporting arms, the second supporting section of these two supporting armlet bag the second arms, and wherein, revolute pair is arranged on supporting arm and the second supporting section mutually in the hole at center.This formation can make that revolute pair is simple and firm formation is symmetrical with the central plane of the relative framework of power being transmitted by revolute pair.

The advantageous formation of a kind of tool of revolute pair can have axle journal according to the present invention, this axle journal is fixed in the hole of the second supporting section and utilizes its end outstanding from the second supporting section in both sides, wherein, bearing can the end that be arranged on axle journal of axial slip on, these bearings are fixed in the hole of the first arm supporting section and are designed for the first arm vertically with radial support on axle journal.Bearing in this case can be by the first adjusting device adjustment with respect to the position of axle journal.

Revolute pair can be manufactured and simple installation inexpensively according to of the present invention being configured in the common standard component situation of use.This structure can make the first adjusting device have advantage to form in addition, and this first adjusting device can have the adjustment part being arranged on axle journal two ends, and these adjustment parts limit bearing with respect to the position of axle journal in the direction of end separately at axle journal.Adjustment part can have the adjustment bolt of flange of bearing contact-making surface and countersunk bolt or clamping screw by band and form, and wherein, two bolts are arranged in the end face screw of axle journal.

The second adjusting device has eccentric bush according to the present invention, and it can reverse can block bearing in the hole being arranged on supporting arm and in eccentric bush.By the torsion of eccentric bush in supporting arm hole, bearing centre can be in hole inner transposition and therefore footpath adjust upward the first arm with respect to axle journal and therefore with respect to the position of the second arm.

Eccentric bush preferably has the annular flange with opening or groove, its separately on the outside in supporting arm and the rotary part of eccentric bush can stop on annular flange by the bolt embedding in opening or groove.Easily contact from the outside also can be according to plain mode transposition for eccentric bush thus.

As bearing, according to the present invention, preferably use sliding bearing, there is the intermeshing inner sleeve of spherical sliding surface and the overcoat of the congruence utilized.By this formation of sliding bearing, can avoid under high load capacity the clamping force that produces due to arm and axle journal distortion and heavily stressed.In addition, the asymmetric distribution of the lining of sliding bearing can be compensated.But the present invention is not limited to and uses on this bearing, but also can form by the sliding bearing of taper or the rolling bearing of absorption axial force.

For holding engagement device and corresponding instrument, the first and second arms have accommodation hole on its free end, its axis separately in the plane in the axis right angle intersection with hole and at arm for engaging parallel on the operating position of predetermining and thering is minimum each other distance.This distance must be less than the axial and radially transposition of rolling bearing maximum, to guarantee that accommodation hole can utilize adjusting device to enter coaxial position.

Accompanying drawing explanation

By embodiment shown in the drawings, the present invention is described in detail below.Wherein:

Fig. 1 illustrates the stereogram according to framework of the present invention; And

Fig. 2 illustrates the sectional view according to Fig. 1 framework revolute pair.

The specific embodiment

Fig. 1 illustrates framework 1, and it has the first arm 2 and the second arm 3, and they can be rotationally connected by threaded shaft A by revolute pair 4.The first arm 2 has substantially straight shape extending longitudinally laterally extending with axle A.The end 5 of arm 2 is divided into two supporting arms 6,7 for forming supporting section, and they hold the bearing of revolute pair 4 in coaxial aperture.Another free end 8 of arm 2 has locates 9 holding of engagement device.Hold place 9 and have cylindrical hole 10, engagement device utilizes cylindrical portion section can pack in this hole.Hole 10 has the axis B on arm 2 central plane vertical with axle A.Roughly, at center, arm 2 has bearing insert 11 on the face back to arm 3, and it is for attended operation and supporting arrangement, and arm 2 is rotated and can be fixedly supported upon on arm 3 on the operating position engaging shown in Fig. 1 with respect to arm 3 by this operation and bearing arrangement.

The second arm 3 is the rectangular shape of tool substantially, and wherein, an angle arm forms and is connected the supporting section being arranged between supporting arm 6,7 with revolute pair 4.Another angle arm utilizes its free end 13 to form corresponding instrument and for example locates 14 holding of base 15.Near revolute pair 4, arm 3 has for fixing operation device, for example the fixed position 16 of industrial machine staff.The operation and the supporting arrangement that being also useful on rotation and supporting the first arm 2 on operating means.

Fig. 2 illustrates revolute pair 4 and for the device of its adjustment.Revolute pair 4 has axle journal 20, and it utilizes interlude gapless to pack in the hole 21 on arm 3.For axial restraint, axle journal 20 utilizes the annular disk 22 of moulding to recline in the one side of arm 3.On the opposing face of arm 3, nut 23 is screwed on the thread segment of axle journal 20, and this nut abuts on arm 3 and annular disk 22 and arm 3 are kept in touch.The bearing 24,25 of same structure is set on axle journal 20 and arm 3 two ends separately.Bearing 24,25 has the intermeshing inner sleeve 26 of spherical sliding surface and the overcoat 27 of the congruence utilized.Therefore bearing 24,25 forms and can both diametrically, also transmit in the axial direction the sliding bearing of power.The overcoat 27 of bearing 24,25 is arranged in the eccentric bush 28 in the hole 29 on arm 2 supporting arms 6,7.The overcoat 27 of bearing 24,25 passes through baffle ring 30 and elasticity relieving ring 31 axial restraints in eccentric bush 28.

Eccentric bush 28 has and is arranged on the annular flange 32 in annular gap on supporting arm 6,7 outsides separately on its outer end.Annular flange 32 has the hole 33 that some arranges with regular distance each other, for holding the dogbolt 34 that can screw in supporting arm 6 or 7 screws.

For axle, adjust upward arm 2 and comprise and adjust bolt 35,36 with respect to the adjusting device of arm 3 positions, they utilize in the screw in two distal end faces that thread segment 37 screws in axle journal 20.Adjust bolt 35,36 and there is the flange 38 that forms the contact-making surface of inner sleeve 26 on the outside of bearing 24,25.By the countersunk bolt in built-in journal 20 screws or clamping screw 39, preventing from adjusting bolt 35,36 unclamps.

As seeing from Fig. 2, the overcoat 27 of two bearings 24,25 is inwardly bearing on supporting arm 6,7 towards arm 3 by baffle ring 30, eccentric bush 28 and annular flange 32 separately.In the reverse direction, bearing 24,25 utilizes its inner sleeve 26 from the head face hump of axle journal 20 to be bearing in the flange 38 of adjusting bolt 36.If need to be by arm 2 with respect to arm 3 transposition left in Fig. 2, so first, after unclamping left clamping screw 39, left adjustment bolt 35 is screwed out with the amount of wanted transposition and subsequently after unclamping right clamping screw 39, by by adjusting bolt 36 to measure accordingly in the screw that deeper screws in axle journal 20.In this case, by right adjustment bolt 36, by right bearing 25 and in company with right bearing, by arm 2 and in company with this arm, this degree of left bearing 24 is moved to the left, until this left bearing utilizes its inner sleeve 27 again to abut on left adjustment bolt 35.By this transposition, the holding place and 9 can adjust with respect to base 15 in x direction of arm 2.

For transposition radially upper arm 2 with respect to the position of arm 3, after unclamping dogbolt 34, by two eccentric bush 28 with the anglec of rotation determined in hole 29 with the identical torsion that turns to.The torsion of eccentric bush 28 makes the axis in hole 29 with respect to axis parallel on two direction in spaces of axle journal 20.For adjusting in the Y direction with respect to base 15, hold place 9, relevant mobile in the direction vertical to axis B.Holding place 9 maximum transposition is in the Y direction limited in the twice of eccentric bush 28 degree of eccentricitys.

By eccentric bush 28, also can adjust and hold the parallel orientation that place 9 holds place 14 relatively, method is with the different anglecs of rotation or rotates backward eccentric bush.But this transposition also can cause the transposition on directions X, then must utilize adjustment bolt 35,36 to proofread and correct.

According to the supporting being connected with bearing insert 11 and the structure of operating means, arm 2 transposition in the Y direction also can be proofreaied and correct on supporting and operating means, to arm 2 is remained unchanged for engaging the operating position of predetermining.

As described in description above, utilize the adjusting device forming in revolute pair 4 can in X and Y-direction, adjust engagement device and corresponding instrument and hold the relative position at place 9,14 and make thus to hold place 9,14 and produce each other accurate coaxial directed.On the position that adjustment can be convenient to contact at framework 1, simply carry out and can continue to keep by stop and clamping screw.

Claims

1. the retainer for engagement device, there is the first arm (2) and the second arm (3), this second arm by revolute pair (4) can threaded shaft (A) be rotationally connected with the first arm (2) and with this first arm for engaging the framework (1) that forms a C shape on the operating position of predetermining, two arms (2 on described operating position, 3) be fixed to one another supporting, wherein, the free end that holds place (9) and the second arm (3) that the free end of the first arm (2) has an engagement device have with the coefficient corresponding instrument of engagement device hold place (14), it is characterized in that, the first arm (2) can be in upper vertical the adjusting upward at axle (A) by the first adjusting device of revolute pair (4) with respect to the position of the second arm (3).

2. by retainer claimed in claim 1, it is characterized in that, the first arm (2) can above adjust upward in the side vertical with axle (A) by the second adjusting device in revolute pair (4) with respect to the position of the second arm (3).

3. by the retainer described in claim 1 or 2, it is characterized in that, the first arm (2) has the first supporting section with the fork-shaped of two supporting arms (6,7), and the second supporting section of these two supporting armlet bag the second arms (3) and revolute pair (4) are arranged on supporting arm (6,7) mutually in the hole at center (29) and in the hole (21) of the second arm (3) second supporting sections.

4. by retainer claimed in claim 3, it is characterized in that, revolute pair (4) has axle journal (20), this axle journal is fixed in the hole (21) of the second supporting section and the end of and axle journal (20) outstanding from the second supporting section in both sides with its end moves axially bearing (24,25) is set, these bearings are fixed on the support arm (6 of the first arm (2), 7) in the hole on (29), and be designed for by the first arm (2) axially and radial support on axle journal (20), wherein, bearing (24,25) can be by the first adjusting device adjustment with respect to the position of axle journal (20).

5. by retainer claimed in claim 4, it is characterized in that, the first adjusting device has the adjustment part being arranged on axle journal (20) two ends, and these adjustment parts limit bearing (24,25) with respect to the position of axle journal (20) in the direction of end separately at axle journal (20).

6. by retainer claimed in claim 5, it is characterized in that, adjustment part has band and has the flange (38) of contact-making surface and the adjustment bolt (35,36) of clamping screw (39) for bearing (24,25), wherein, adjusting bolt (35,36) and clamping screw (39) is arranged in the end face screw of axle journal (20).

7. by the described retainer of one of claim 2-6, it is characterized in that, the second adjusting device has eccentric bush (28), and it is arranged in the hole (29) on supporting arm (6,7) rotationally and described bearing is bearing in described eccentric bush.

8. by retainer claimed in claim 7, it is characterized in that, eccentric bush (28) has the annular flange (32) with opening or groove, and on its outside in supporting arm (6,7) and the turned position of eccentric bush (28) can be in the upper stop of annular flange (32) by the bolt (34) embedding in opening (33) or groove.

9. by the described retainer of one of aforementioned claim, it is characterized in that, described bearing (24,25) is sliding bearing the intermeshing inner sleeve of spherical sliding surface (26) and the overcoat (27) with the congruence utilized.

10. by the described retainer of one of aforementioned claim, it is characterized in that, the first (2) and second arm (3) has respectively accommodation hole on its free end, the axis of described accommodation hole is separately in the plane in the axis right angle intersection with hole (21,29), and on the operating position of predetermining, is parallel to each other and has minimum each other distance for engaging at arm (2,3).