CN102990537B - Fixture - Google Patents

Abstract

A kind of fixture, is used for clamping workpiece, and described fixture includes: the pedestal extended along lengthwise；Be arranged on described pedestal determines jaw；It is arranged on described pedestal and can determine, relative to described, the movable clamp port that jaw moves；Wherein said fixture has the first clamping face, described first clamping face is pivotally arranged at by arc track described determines jaw and described movable clamp port on one of them, described determine jaw and described movable clamp port other in which is provided with the second clamping face being oppositely arranged with described first clamping face, and the diameter of described arc track is more than the length of the first clamping face.First clamping face of this fixture in pivoting all the time with absorption surface, thus reliablely and stablely clamp special-shaped workpiece.

Description

Fixture

Technical field

The present invention relates to a kind of fixture, particularly relate to a kind of fixture clamping special-shaped workpiece.

Background technology

Traditional fixture has to be determined guide rail, is located at the dynamic guide rail determining on guide rail slippingly, determines guide rail and is provided with and determines jaw, Dynamic guide rail is provided with movable clamp port.Determining jaw and have the first clamping face, movable clamp port has second clamping parallel with the first clamping face Face, therefore drives movable clamp port relative to when determining jaw and move when dynamic guide rail, movable clamp port and determine can only clamp between jaw both ends of the surface The regular workpiece being parallel to each other.And if workpiece is irregular shape, outward flange is as outer peripheral in taper work or arc Workpiece, the fixture with two parallel clamping faces then can not clamp.So, the range of fixture is limited.

Summary of the invention

First technical problem that the invention solves the problems that: the fixture of a kind of energy reliable retention special-shaped workpiece is provided.

The present invention solves the technical scheme that first technical problem is used: a kind of fixture, is used for clamping workpiece, described folder Tool includes: the pedestal extended along lengthwise；Be arranged on described pedestal determines jaw；Being arranged on described pedestal can be the most described fixed The movable clamp port that jaw moves；Wherein said fixture has the first clamping face, and described first clamping face is pivotable by arc track Be arranged on and described determine jaw and described movable clamp port on one of them, described determine to set in jaw and described movable clamp port other in which There is the second clamping face being oppositely arranged with described first clamping face, and the diameter of described arc track is more than described first clamping face Length.

Beneficial effects of the present invention: owing to the first clamping face can be pivoted relative to each other, such that it is able to common with the second clamping face Ground clamping special-shaped workpiece.And the diameter of arc track is more than the length of the first clamping face, it is to avoid workpiece with determine jaw or dynamic clamp Mouthful produce and to interfere so that the first clamping face in pivoting all the time with absorption surface, such that it is able to relatively reliable stable folder Hold bigger special-shaped workpiece.

Preferably, the radius of described arc track is more than the length of described first clamping face.

Preferably, the length of described first clamping face is more than the chord length of arc track.

Preferably, the center of circle of described arc track is positioned at the side in the face of described first clamping face.

Preferably, described fixture include being arranged on described determine jaw and the movable clamp port support member on one of them with relative The first fixture block that support member pivots, described first clamping face is arranged on described first fixture block.

Preferably, described support member is removably attachable to determine jaw and movable clamp port on one of them.

Preferably, described first fixture block can skid off described support member.

Preferably, described second clamping face is perpendicular to the moving direction of described movable clamp port, and described first clamping face is with described During the angle no more than 30 degree that the second clamping face is formed, the extension plane at described first clamping face place is not done with described support member Relate to.

Preferably, described arc track is fixedly connected on described support member and the first fixture block on one of them, described support Part and the first fixture block other in which are provided with the guide groove matched with described arc track..

Preferably, the described supporting plane determining to be provided perpendicular to described first clamping face on jaw and movable clamp port, described Supporting plane is provided with at least three the second fixture block, and described second fixture block at least one be arranged on and described determine jaw and movable clamp port On one of them, described second fixture block at least two is arranged on described determines in jaw and movable clamp port other in which.

Preferably, described second fixture block includes and the butting section on described supporting plane, and described butting section has contact work The curved end of part.

Preferably, described second fixture block also includes being connected to butting section and extending through the guiding on described supporting plane Portion, described determines jaw and movable clamp port is provided with the gathering sill coordinated with described guide part.

Preferably, described butting section is pivotable is connected on described supporting plane.

Second technical problem that the invention solves the problems that: provide a kind of clamping device, this clamping device is used for fixture, and energy can By clamping special-shaped workpiece.

The present invention solves the technical scheme that first technical problem is used: a kind of clamping device, for fixture, and described folder Tool includes the pedestal extended along lengthwise；Be arranged on described pedestal determines jaw；Being arranged on described pedestal can be the most described fixed The movable clamp port that jaw moves；Wherein said clamping device has the first clamping face, and described first clamping face can by arc track Being arranged on of pivoting described determines jaw and described movable clamp port on one of them, described determines jaw and described movable clamp port other in which It is provided with the second clamping face being oppositely arranged with described first clamping face, and the diameter of described arc track is more than described first folder Hold the length in face.

Beneficial effects of the present invention: owing to the first clamping face can be pivoted relative to each other, such that it is able to common with the second clamping face Ground clamping special-shaped workpiece.And the diameter of arc track is more than the length of the first clamping face, it is to avoid workpiece with determine jaw or dynamic clamp Mouthful produce and to interfere so that the first clamping face in pivoting all the time with absorption surface, such that it is able to relatively reliable stable folder Hold bigger special-shaped workpiece.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view that in the embodiment of the present invention, fixture is arranged on workbench.

Fig. 2 is the schematic perspective view of fixture in the embodiment of the present invention.

Fig. 3 is the cut-away view of fixture in the embodiment of the present invention, and now lever is in initial position.

Fig. 4 is the cut-away view of fixture in the embodiment of the present invention, and now lever is in lower position.

Fig. 5 is the sectional perspective schematic diagram of fixture in the embodiment of the present invention, now removes pedestal anterior.

Fig. 6 is the cut-away view that in the embodiment of the present invention, fixture installs on the table, and wherein workbench does not cuts open and shows, at fixture In locked position.

Fig. 7 is the schematic perspective view of the clamping device of fixture in the embodiment of the present invention.

Fig. 8 is the front view of the clamping device of fixture in the embodiment of the present invention.

Fig. 9 is the three-dimensional exploded view of the clamping device of fixture in the embodiment of the present invention.

Figure 10 is the schematic perspective view of the support member of clamping device in the embodiment of the present invention.

Figure 11 is the schematic perspective view of the second support member of fixture in the embodiment of the present invention.

Figure 12 is the sectional view in Fig. 8 along A-A.

Figure 13 is the schematic diagram of holder taper work in the embodiment of the present invention.

Figure 14 is the schematic diagram of the longer taper work of holder in the embodiment of the present invention, now moves guide rail and is in and counter fills shape State.

Figure 15 is the schematic diagram of holder round piece in the embodiment of the present invention, and now workpiece is held in the second fixture block In the clamping zone formed.

Figure 16 is the schematic diagram of holder arc-shaped workpiece in the embodiment of the present invention, and now workpiece is held in the second fixture block In the clamping zone formed.

Figure 17 is the schematic diagram of the bigger taper work of holder in the embodiment of the present invention, and now workpiece is held in second In the clamping zone that fixture block is formed.

Wherein

30. fixture 32. workbench 33. work tops

34. pedestal 35. side 36. pedestals are anterior

37. supporting leg 38. support bodys 40. determine guide rail

42. move guide rail 44. determines jaw 46. movable clamp port

48. first clamping face 50. second clamping face 52. drive mechanisms

54. ride assembly 56. pivotal axis 57. pivotal axis axis

58. lever 60. projection 62. propulsion arms

63. rotating shaft 64. stop part 65. spacer pins

66. groove 68. flexible member 70. connecting rods

72. drive rod 74. first end 76. second ends

78. bias piece 82. stop block 84. linkage sections

86. pedal 88. first axle 100. retaining mechanisms

102. guide pillar 104. cage knob 105. bayonet locks

106. connecting rod 107. limited block 108. swing seats

110. spring 112. accepting hole 113. limiting plates

114. lock shaft 120. first clamping face 122. second clamping faces

124. clamping device 125. arc track 128. first support members

130. first fixture block 134. curved portions 136. connecting portions

138. knob 140. bolt 142. first sides

144. second side 146. guide groove 148,150. flangings

151. second support member 152. knob 153. supporting planes

154. second fixture block 160. butting section 162. curved ends

164. plane 166. extension 168. bolts

170. nut 172. accepting groove 174. stop portions

176. packing ring 178. groove 180,182. holes

200. workpiece 210. workpiece

Detailed description of the invention

The invention will be further described with preferred embodiment below in conjunction with the accompanying drawings.

As it is shown in figure 1, a kind of fixture 30, it is placed on workbench 32 clamping workpiece.Fixture 30 includes pedestal 34.Pedestal 34 include pedestal anterior 36 and the support body 38 being connected with pedestal anterior 36, and wherein pedestal front portion 36 near operator and is positioned at work Outside platform 32；The support body 38 that lengthwise extends is predominantly located in the top of workbench 32.Support body 38 is not solid construction, but includes Two side plates being oppositely arranged.Biside plate can be to close, it is also possible to is provided with hollow out to increase rigidity and reduce weight, when So, the configuration of hollow out can be triangle, tetragon or other similar shape.In describing the invention, unless additionally referred to Go out, the direction term related to, such as left, right, front and rear, upper and lower etc., be all with the direction when fixture 30 is by normal operating for ginseng According to.As near the front side for fixture 30 of operator, away from the rear side that operator is fixture 30.

Workbench 32 include for the work top 33 of placing clamp 30 and the vertically disposed side of work top 33 35 with And the supporting leg 37 being connected with work top 33.

In the present embodiment, fixture 30 is positioned on workbench 32.It is of course also possible to arrange supporting leg below pedestal 34, For pedestal being supported on the height of applicable work.For convenience of carrying and packaging, supporting leg is arranged on pedestal collapsibly.

As in figure 2 it is shown, fixture 30 includes that be fixed on support body 38 determines guide rail 40, relative to determining the dynamic guide rail that guide rail 40 moves 42 and determine jaw 44 and the movable clamp port 46 being arranged on dynamic guide rail 42.Wherein move guide rail 42 slidably to arrange along E direction Determining on guide rail 46.Determine jaw 46 near operator, be fixedly installed on pedestal anterior 36 or determine the front end of guide rail 40, namely position In pedestal anterior 36 and the junction of support body 38；Movable clamp port 46 is fixedly installed on one end of dynamic guide rail 42.

Fixture 30 also includes the operating parts that drive mechanism 52 is connected with drive mechanism 52, and wherein operating parts operationally promotees Make drive mechanism 52 drive movable clamp port 46 44 to move relative to determining jaw.

In the present embodiment, operating parts is foot-operated assembly 54.Certainly, operating parts can also be that other can be manual Other operating element.

In the present embodiment, foot-operated assembly 54 is connected with drive mechanism 52 pivotly.Certainly, foot-operated assembly 54 can also It is connected in drive mechanism 52 by mode slidably.

As shown in Figure 3 and Figure 4, drive mechanism 52 includes and rides lever 58 and lever 58 pivot that assembly 54 is pivotally connected Turn connect and with projection 60 propulsion arms 62, the stop part 64 being arranged on support body 38, be arranged on propulsion arms 62 and lever 58 Between bias piece 78 and the groove 66 that is arranged on dynamic guide rail 42, its further groove 66 is longitudinally disposed along dynamic guide rail 42, bias Part 78 promotes projection 60 all the time towards the direction engaged with groove 66.Lever 58 drives projection 60 in the state engaged with groove 66 And and groove 66 disengage state between move.When projection 60 is in engagement, owing to projection 60 engages with groove 66, lever The pivoting action of 58 will promote projection 60 to drive dynamic guide rail 42 to move.Projection 60 is in and the disengaged condition of groove 66, backstop Part 64 contacts with propulsion arms 62 and pivots for backstop propulsion arms 62.

Lever 58 is rotatably arranged on support body 38 by pivotal axis 56, thus lever 58 is in the driving of foot-operated assembly 54 Under rotate around pivotal axis axis 57.

Lever 58 has initial position and lower position.At initial position, as it is shown on figure 3, fixture 30 is in initial shape State, now, projection 60 is in the state disengaged with groove 66, and stop part 64 contacts with propulsion arms 62 for backstop propulsion arms 62 pivot Turn；In lower position, as shown in Figure 4, projection 60 is in the state engaged with groove 66, and lever 58 is around pivotal axis axis 57 It is switched to lower position.

Being provided with flexible member 68 between lever 58 and support body 38, flexible member 68 provides and is maintained at initially by lever 58 The active force of position.In the present embodiment, flexible member is extension spring 68, and certainly, this flexible member can also is that stage clip, torsion spring etc. Deng.

Lever 58 includes connecting rod 70 and the drive rod 72 that be connected fixing with connecting rod 70, and wherein connecting rod 70 includes and pushes away Entering the first end 74 that arm 62 connects and the second end 76 being oppositely arranged with the first end 74, flexible member 68 is arranged on support body 38 and connects Between second end 76 of extension bar 70.

Propulsion arms 62 is pivotally arranged in connecting rod 70 by rotating shaft 63, and in the present embodiment, bias piece 78 is for turning round Spring, in this rotating shaft 63 sheathed.Certainly, here bias piece also can also is that stage clip, extension spring or other can provide propulsion arms 62 structures pivoting restoring force.

One end of propulsion arms 62 is provided with projection 60, and the other end is provided with the stop block 82 selectively coordinated with stop part 64. At initial position, stop block 82 coordinates with stop part 64, thus propulsion arms 62 can not turn towards the direction engaged with groove 66 Dynamic.

Foot-operated assembly 54 is pivotally arranged on lever 58.Foot-operated assembly 54 includes linkage section 84 and pedal 86.Its One end of middle connecting segment 84 is rotatably coupled on lever 58 around first axle 88, and pedal 86 adjustable ground is connected to The other end of the section of connecing 84.What pedal 86 connected relatively regulates on linkage section 84 lengthwise bearing of trend, thus pedal 86 is right The position of workbench changes, and the operator adapting to difference rising uses or is fixed on the workbench of differing heights use. Certainly, pedal 86 can also be one-body molded with linkage section 84.

Referring back to Fig. 3, lever 58 is in initial position, and now, fixture 30 is in original state.During work, step on foot-operated Plate 86, foot-operated assembly 54 drives lever 58 to be rotated down around pivotal axis axis 57, and now, propulsion arms 62 is in the effect of lever 58 Under, move forward so that stop block 82 disengagement in propulsion arms 62 coordinates with stop part 64, under the effect of torsion spring 78, pushes away The projection 60 entering arm 62 enters the state engaged with groove 66, then continues to drive lever 58 by pedal 86 due to operator Move pivotally to lower position, as shown in Figure 4.During lever 58 continues to pivot, lever 58 promotes projection 60 to drive Dynamic guide rail 42 pushes forward certain distance so that movable clamp port 46 moves relative to determining jaw 44.

Owing to stop part 64 coordinates with stop block 82, rotate around pivotal axis axis 57 when lever 58 is done by operation Time, propulsion arms 62 can be promoted to disengage rapidly and the coordinating, so that the projection 60 in propulsion arms 62 is quick of stop part 64 Ground engages with groove 66.So accelerate the translational speed of dynamic guide rail 42.

Unclamping foot-operated assembly 54, under the effect of extension spring 68, lever 58 rotates up around pivotal axis axis 57, at the beginning of reply Beginning position, now, fixture 30 is returned to original state.Propulsion arms 62, under the effect of lever 58, is moved rearwards by, until propulsion arms The stop block 82 of 62 contacts with stop part 64, and now, projection 60 departs from groove 66.So repeat to step on pedal 86 and release foot Pedal 86, just can determine jaw 44 by dynamic guide rail 42 together with movable clamp port 46 is the most close.

Drive mechanism 52 has two states.Fixture 30 is under original state, and drive mechanism 52, in the first state, drives Mechanism 52 departs from engages with dynamic guide rail 42, and now projection 60 disengages with groove 66 under the effect of stop part 64 all the time, so grasps Start guide rail 42 just can make guide rail 42 Rapid Relative move in determining guide rail 40.And when drive mechanism 52 is the second state, behaviour Workpiece is operatively promoted the projection 60 in drive mechanism 52 to engage with groove 66, thus drives dynamic guide rail 42 speed stabilizing the most surely to lead Rail 40 moves.

Certainly, under being in original state at fixture 30, now, projection 60 under the effect of stop part 64 all the time with recessed Groove 66 disengages, and operator can also change direction and be installed on and determine guide rail 40 as required after being completely pulled out by dynamic guide rail 42 On, so can expand the clamping range of fixture 30.

But, in order to prevent after dynamic guide rail 42 is completely pulled out, trample to maloperation pedal 86, and make propulsion arms 62 On projection 60 be rotated up under the effect of torsion spring 78, with support body 38 or determine guide rail 40 hard collision occurs.So advancing Spacer pin 65 it is additionally provided with, as shown in Figure 3 and Figure 4 on arm 62.If after being completely pulled out by dynamic guide rail 42, trampling pedal to maloperation 86, after projection 60 is rotated upwardly into certain position under the effect of torsion spring 78, spacer pin 65 can be with support body 38 or determine guide rail 40 and connect Touch, thus effectively prevent projection 60 and support body 38 or determine guide rail 40 hard collision occurs.

After movable clamp port 46 is in required clamped position, it is possible to by being arranged on the lock between support body 38 and lever 58 The position of movable clamp port 46 is locked by tight mechanism 100.

As shown in Fig. 3, Fig. 4 and Fig. 5, retaining mechanism 100 includes the guide pillar 102 being pivotally connected on lever 58, sliding sets The connecting rod 106 put the cage knob 104 on pedestal front portion 36, being connected on cage knob 104, the swing being pivotally connected in pedestal front portion 36 Seat 108, the spring 110 being arranged with on connecting rod 106.Wherein swing seat 108 is provided with the accepting hole 112 housing guide pillar 102, cage knob 104 in release locked position and the permission guide pillar 102 of guide pillar 102 with accepting hole 112 clamping moved relative to accepting hole 112 Move between position.

Guide pillar 102 is pivotable to be connected on lever 58, and the rotation axis of guide pillar 102 is parallel with first axle 88 or with Axle is arranged.In order to structure is compacter, more convenient to operate, in the present embodiment, the rotation axis of guide pillar 102 and first axle 88 overlap.And guide pillar 102 and pedal 86 rotate around same axis.

Guide pillar 102 includes that be pivotally connected with lever 58 connects end and the free terminal being oppositely arranged.On free terminal It is provided with bayonet lock 105.

Lever 58 at initial position and moves between lower position, and fixture 30 is provided with the first and second position-limit mechanisms. First, second position-limit mechanism is mainly used in spacing for lever 58 the two position.

Lever 58 is in initial position, as it is shown on figure 3, the first position-limit mechanism is for being fixedly installed on support body 38 upper limit position block 107.When lever 58 is under the effect of extension spring 68, being switched to contact with limited block 107, at this moment lever 58 is limited at initial position Position.Lever 58 is in lower position, and as shown in Figure 4, the second position-limit mechanism includes the card being arranged on the free terminal of guide pillar 102 Pin 105 and the inner surface of swing seat 108.The axis 57 around pivotal axis being applied when lever 58 moves pivotally, guide pillar 102 Driven the rotation axis also around guide pillar 102 not only to pivot but also move downward by lever 58, when guide pillar 102 move to bayonet lock 105 with The inner surface of swing seat 108 contacts, and at this moment lever 58 is limited in lower position.

First end of swing seat 108 is rotatably connected on pedestal front portion 36 by pivot 107.Accepting hole 112 is fixedly installed The second end in swing seat 108.

In the present embodiment, connecting rod 106 is fastened on the lower end of cage knob 104 and is rotated by cage knob 104.Connecting rod 106 leads to Cross lock shaft 114 to be rotationally connected with swing seat 108, and spring 110 is sheathed on connecting rod 106, be so designed that so that work as cage knob 104 in off-position, and under the effect of spring 110, swing seat 108 is provided with the second end of accepting hole 112 all the time towards non-tilting Direction, be towards the direction on ground.When cage knob 104 is at locked position, as it is shown in fig. 7, under the effect of spring 110, Swing seat 108 is provided with the second end of accepting hole 112 all the time towards the direction tilted.

As shown in Figure 3 and Figure 4, now cage knob 104 is maintained at off-position, under the effect of spring 110, and swing seat 108 It is provided with the second end of accepting hole 112 all the time towards the direction on ground, so when pedal 86 is around in axis rotary course, drives Guide pillar 102 in accepting hole 112 slidably.

In order to prevent operator from making power improper, and block guide pillar 102.Swing seat 108 also sets limiting plate 113.

As shown in Figure 6, making it arrive locked position when pressing downwards cage knob 104, cage knob 104 drivening rod 106 moves down, pin Axle 114 produces and pivots, and under the effect of spring 110, swing seat 108 is provided with the second end of accepting hole 112 all the time towards tilting Direction, and swing seat 108 is upwards provoked and is contacted with two diagonal angles of accepting hole 112 all the time so that guide pillar 102, so, guide pillar 102 Move upward and limited, and can only move downward；The most only need to step on pedal 86, make lever 58 drive guide pillar 102 downward Move to lower position, now, unclamp pedal 86, due to swing seat 108 under the effect of spring 110 all the time towards tilting Direction, such guide pillar 102 will be moved upwards up to certain position and to be received hole 112 stuck, so dynamic guide rail 42 and dynamic The position of jaw 46 is the most locked.

If it is intended to guide rail 42 and movable clamp port 46 thereof are moved in release again, it is only necessary to cage knob 104 is lifted up to release position Putting (as shown in Figure 3 and Figure 4), swing seat 108 is in the position towards ground.Now, step on pedal 86, due to guide pillar 102 Unlock from accepting hole 112, thus, guide pillar 102 can freely slide in accepting hole 112.

As shown in Fig. 2, Fig. 7 and Fig. 8, fixture has the first clamping face 120, and the first clamping face 120 is by arc track 125 Being pivotally arranged at and determine on jaw 44, movable clamp port 46 is provided with the second clamping face being oppositely arranged with the first clamping face 120 122, and the diameter of arc track 125 is more than length L of the first clamping face 120.Owing to the first clamping face can be pivoted relative to each other, from And can jointly clamp special-shaped workpiece with the second clamping face, and the diameter of arc track is more than the length of the first clamping face, Pivoting is avoided workpiece and determines jaw or movable clamp port interference so that the first clamping face connects with workpiece in pivoting all the time Touch, such that it is able to the special-shaped workpiece that relatively reliable stable clamping is bigger

Further, the radius of arc track 125 is more than length L of the first clamping face.

Further, the length of the first clamping face 120 is more than chord length H corresponding to arc track 125.

It addition, the first clamping face 120 can also be pivotally arranged on movable clamp port 46, accordingly by arc track 125 , the second clamping face 122 being oppositely arranged with the first clamping face 120 is arranged to be determined on jaw 44.

The center of circle of arc track 125 is positioned at the side in the face of the first clamping face 120.The pivot axis of the i.e. first clamping face is Virtual.

Fixture 30 includes being arranged at the clamping device 124 determining jaw 44 and movable clamp port 46 on one of them.Originally it is preferable to carry out In example, clamping device 124 is arranged to be determined on jaw 44.Clamping device 124 can be arranged on as required separately as an adnexa On different types of clamping device, such as bench vice, super vice etc..As long as this clamping device has determines jaw and can be relative to fixed The movable clamp port that jaw moves.

Clamping device 124 include being located at determine on jaw 44 the first support member 128, be pivotally connected to the first support member 128 On the first fixture block 130, and the first fixture block 130 is movably attached to the first support member 128 by arc track 125.First Clamping face 120 is located on the face of the first fixture block 130.Movable clamp port 46 is provided with the second support member 151, and the second clamping face 122 is arranged On the second support member 151.

In this preferred embodiment, the first support member 128 is removably attachable to determine on jaw 44, and the first fixture block 130 passes through Arc track 125 is connected to the first support member 128 slippingly.First clamping face 120 is located on the first fixture block 130.Certainly, One support member 128 can also be arranged to be removably attachable on movable clamp port 46.

First fixture block 130 is pivotable relative to the first support member 128 so that the first clamping face 120 is relative to the second clamping Variable-angle between face 122, so that this fixture can clamp the taper work that both ends of the surface are angled.

First fixture block 130 has the curved portions 134 matched with arc track 125, and chord length N of curved portions is less than or equal to arc Chord length H of shape track 125.Certainly, chord length N of curved portions 134 can also be set greater than chord length H of arc track 125.When So, arc track 125 can be set to be fixedly connected on the first support member 128 and the first fixture block 130 on one of them, curved portions 134 are arranged in the first support member 128 and the first fixture block 130 other in which.

Central angle corresponding to curved portions 134 is less than 180 degree.Further, the central angle corresponding to curved portions 134 is sharp Angle.Further, the central angle corresponding to curved portions 134 is less than 45 degree.Curved portions 134 can be set to large radius and correspondence relatively Little central angle, so that the first clamping face 120 relative with curved portions 134 on the first fixture block 130 is relatively big, with contacting of workpiece Area is bigger, it is achieved the reliable and stable clamping of workpiece.

It is provided with connecting portion 136 so that the first fixture block 130 is relative to first between curved portions 134 and the first clamping face 120 When support member 128 pivots larger angle, the extension plane at the first clamping face 120 place is still away from the first support member 128, the i.e. first folder The extension plane holding place, face 120 will not be interfered with the first support member 128, thus realizes greater taper degree, the clamping of wider workpiece.

As shown in Figure 2 and Figure 9, the first support member 128 is removably attachable to determine jaw by knob 138 and bolt 140 On 44, being specially and determine jaw 44 between knob 138 and the first support member 128, screwing knob can be the first clamping device 124 It is fixed on and determines on jaw 44.When unscrewing knob 138, so that it may the first support member 128 of dismantling.Equally, the second support member 151 also leads to Cross knob 152 and bolt (not shown) is removably attachable on movable clamp port 46.

As shown in Figure 10, the first support member 128 have the first side 142 and with the first side 142 be oppositely arranged second Side 144, arc track 125 extends to the second side of the first support member 128 from the first side 142 of the first support member 128 144.Avoid workpiece and determine jaw 44 or movable clamp port 46 and produce interference so that the first clamping face 120 in pivoting all the time with Absorption surface, such that it is able to the special-shaped workpiece that relatively reliable stable clamping is bigger.

As illustrated in fig. 7 and fig. 10, further, arc track 125 is set to open, is i.e. not provided with limiting the first folder The position-limit mechanism of block 130 sliding angle so that the first fixture block 130 free skating can remove the first support member 128, thus facilitates first Installation and removal between fixture block 130 and the first support member 128.Certainly, between the first fixture block 130 and the first support member 128 also The position-limit mechanism limiting the first fixture block 130 pivoting angle can be set.

First support member 128 is sheet metal component, and arc track 125 is formed by flanging.For realizing stable guiding, arc track 125 are set to two in the upper and lower surface of the first support member 128.

Referring again to Fig. 9, the first fixture block 130 is provided with the guide groove 146 coordinated with arc track 125, and guide groove 146 is by flanging 148 and flanging 150 formed.Certainly, arc track 125 can also be arranged on the first fixture block 130.Correspondingly, guide groove 146 sets It is placed on the first support member 128.

Referring back to Fig. 2 and Fig. 8, the second clamping face 122 is perpendicular to the moving direction of movable clamp port 46, during clamping workpiece, and first The extension plane at clamping face 120 place is away from the first support member 128, the extension plane and first at the i.e. first clamping face 120 place Support member 128 is not interfered.It is arranged such, wider workpiece can be clamped.Certainly, when clamping workpiece, the first clamping face 120 place Extension plane can also be designed to intersect with the first support member 128, now can only clamp narrower workpiece.

Further, the maximum taper of the wider workpiece that fixture can clamp is 30 degree, the i.e. first clamping face 120 and second During the angle that clamping face 122 is formed no more than 30 degree, the extension plane at the first clamping face 120 place and the first support member 128 Not interfering, the most held workpiece will not be interfered with the first support member 128, makes this fixture can clamp wider workpiece.

Further, the maximum taper of the wider workpiece that fixture can clamp is 10 degree, the first clamping face 120 and the second folder When holding the angle no more than 10 degree that face 122 is formed, the extension plane at the first clamping face 120 place is with the first support member 128 not Interfering, the most held workpiece will not be interfered with the first support member 128, be made this fixture can clamp wider workpiece.

As shown in Fig. 2, Fig. 9, Figure 11 and Figure 12, determine to be provided perpendicular to the first clamping face on jaw 44 and movable clamp port 46 The supporting plane 153 of 120.In this preferred embodiment, supporting plane 153 is arranged at the first support member 128 and the second support member 151 On.Supporting plane 153 is provided with at least three the second fixture block 154, and the second fixture block 154 at least one be arranged on and determine jaw 44 He Movable clamp port 46 is on one of them, and the second fixture block 154 at least two is arranged on determines in jaw 44 and movable clamp port 46 other in which.The Form the second clamping zone between two fixture blocks 154, be used for clamping workpiece.

Second fixture block 154 includes being connected and be positioned at supporting plane 153 butting section 160 above with supporting plane 153, against Portion 160 has the curved end 162 of contact workpiece.Butting section 160 also has the plane 164 relative with curved end 162.Can root According to the difformity of held workpiece, pivot the second fixture block 154 so that it is curved end 162 or relative plane 164 connect with workpiece Touch.In this preferred embodiment, curved end 162 is set to extrados, facilitates stable holding to have the workpiece of intrados.Certainly, Curved end is it can also be provided that intrados, thus facilitates stable holding to have the workpiece of extrados.In this preferred embodiment, support Relying part 160 is pivotable to be connected on supporting plane 153.Certainly, butting section 160 can be configured as being fixedly connected on supporting plane On 153.

Second fixture block 154 also includes the guide part 166 being connected to butting section 160 and extending through on supporting plane 153, fixed Being provided with the gathering sill 167 coordinated with guide part 166 on jaw 44 and movable clamp port 46, the second fixture block 154 is by guide part 166 Cooperation with gathering sill 167 can be relative to determining jaw 44 and movable clamp port 46 pivots.

Second fixture block 154 is connected to the first support member 128 by bolt 168 and nut 170, and guide part 166 has collecting The accepting groove 172 of nut 170.

Nut 170 has stop portion 174, is provided with packing ring 176, on packing ring 176 between stop portion 174 and the second fixture block 154 It is provided with the groove 178 of the guide part 166 housing the second fixture block 154.

Nut 170 is positioned at guide part 166 and packing ring 176.The guide part 166 of the second fixture block 154 is provided with and nut 170 The hexagon ring matched, packing ring 176 also is provided with the hexagon ring matched with nut 170.Bolt 168 is through the second fixture block 154 Coordinate with nut 170 so that the second fixture block 154, packing ring 176, bolt 168 together with nut 170 relative to determining jaw 44 pivot Turn.In this preferred embodiment, packing ring 176 is steel construction piece, is arranged such and can improve stability.Certainly, packing ring 176 can also Use working of plastics.

In this preferred embodiment, determine jaw 44 and be provided with two holes 180 connected with the second fixture block 154, on movable clamp port 46 It is provided with three holes 182 connected with the second fixture block 154, can have selection according to the needs of clamping different workpieces on different holes Connect the second fixture block 154.

As shown in figure 13, when the taper work that clamping both ends of the surface are angled, along with dynamic guide rail is with movable clamp port 46 Movement, when the second clamping face 122 and workpiece just come into contact with, because workpiece is Tapered Cup, the first clamping face 120 is with workpiece also Simply linear contact lay rather than whole contact, now needs to continue to trample pedal, makes movable clamp port continue to move to, and the first folder Block 130 pivots automatically relative to the first support member 128 under the promotion of workpiece, arcuately track 125 sliding simultaneously, continues to trample Pedal is until clamping workpiece, and final workpiece and the first clamping face 120 are fitted completely, it is achieved face contacts, thus stably and firmly Clamping workpiece.This fixture can adjust the first clamping face 120 relative to the second clamping face 122 automatically according to the different taperings of workpiece Angle, very convenient operation.

As shown in figure 14, when clamping longer taper work, can fill counter after the extraction of dynamic guide rail, support second simultaneously Part is also pulled down from movable clamp port 46, and exchanges 180 degree and be re-installed on movable clamp port 46, makes the second clamping face 122 and the first folder Hold face 120 facing, now form bigger clamping range between the second clamping face 122 and the first clamping face 120.

With further reference to Figure 15, when clamping circular work pieces, first make movable clamp port 46 Tape movement to certain position, workpiece It is positioned on supporting plane 153, continues to trample the mobile movable clamp port 46 of pedal (not shown), thus workpiece is stably held on In the second clamping zone that second fixture block 154 is formed.Second fixture block 154 is pivotally connected to determine on jaw 44 and movable clamp port 46, Therefore, when clamping workpiece, the second fixture block 154 can pivot to be in close contact with workpiece automatically.During clamping circular work pieces, optional The plane 164 of butting section 160 or curved end 162 and absorption surface.

With further reference to 16, when clamping the workpiece of bigger and end face camber, can fill, simultaneously counter after the extraction of dynamic guide rail Second support member 151 is also pulled down from movable clamp port 46, and exchanges 180 degree and be re-installed on movable clamp port 46, make the second clamping Face 122 is facing with the first clamping face 120.If additionally this held workpiece be one end be extrados, the other end is intrados Special-shaped workpiece, then the intrados of workpiece contacts with the curved end of butting section, extrados can with the plane 164 of butting section 160 or Curved end 162 contacts.

With further reference to Figure 17, when clamping the angled taper work of both ends of the surface, it is possible to set on jaw 44 determining Putting two the second fixture blocks 154, arrange second fixture block 154 on movable clamp port 46, workpiece is placed on supporting plane 153 equally On, and workpiece is positioned in the clamping zone that above three the second fixture block 154 is formed.The now butting section 160 of the second fixture block 154 Plane 164 and absorption surface, thus stable holding workpiece.If additionally clamp bigger workpiece, dynamic guide rail can be extracted out equally Rear anti-dress, then pull down the second support member 151 and again turn over turnback and be installed on movable clamp port 46, so can further improve fixture Clamping range.

The above embodiments are only used to allow the most preferred enforcement that skilled artisan understands that the present invention and provide Mode.The present invention is not limited in above-mentioned specific embodiment.Any those skilled in the art easily full of beard and improvement all exist Within the inventive concept of the present invention.

Claims (12)

1. a fixture, is used for clamping workpiece, and described fixture includes:

The pedestal extended along lengthwise；

Be arranged on described pedestal determines jaw；

It is arranged on described pedestal and can determine, relative to described, the movable clamp port that jaw moves；

It is characterized in that:

Described fixture has the first clamping face, and described first clamping face is pivotally arranged at by arc track described determines jaw With described movable clamp port on one of them, described determine jaw and described movable clamp port other in which is provided with and described first clamping face The second clamping face being oppositely arranged, and the diameter of described arc track is more than the length of described first clamping face.

Fixture the most according to claim 1, it is characterised in that: the radius of described arc track is more than described first clamping face Length.

Fixture the most according to claim 1, it is characterised in that: the length of described first clamping face is more than the string of arc track Long.

Fixture the most according to claim 1, it is characterised in that: described fixture includes being arranged on described determines jaw and movable clamp port Support member on one of them and the first fixture block of relative support pivot, described first clamping face is arranged on described first fixture block On.

Fixture the most according to claim 4, it is characterised in that: described support member is removably attachable to determine jaw and dynamic pincers Mouthful on one of them.

Fixture the most according to claim 4, it is characterised in that: described first fixture block can skid off described support member.

Fixture the most according to claim 4, it is characterised in that: described arc track is fixedly connected on described support member and One fixture block is on one of them, and described support member and the first fixture block other in which are provided with lead matched with described arc track Groove.

Fixture the most according to claim 1, it is characterised in that: described second clamping face is perpendicular to the movement of described movable clamp port Direction, during the angle no more than 30 degree that described first clamping face is formed with described second clamping face, described first clamping face place Extension plane do not interfere with described support member.

Fixture the most according to claim 1, it is characterised in that: described determine to be provided perpendicular on jaw and movable clamp port described The supporting plane of the first clamping face, described supporting plane is provided with at least three the second fixture block, and described second fixture block at least Individual being arranged on described determines jaw and movable clamp port on one of them, and described second fixture block at least two is arranged on described determines jaw and dynamic In jaw other in which.

Fixture the most according to claim 9, it is characterised in that: described second fixture block include with on described supporting plane Butting section, described butting section has the curved end of contact workpiece.

11. fixtures according to claim 10, it is characterised in that: described second fixture block also includes being connected to butting section and prolonging Extend through the guide part on described supporting plane, described determine jaw and movable clamp port is provided with the guiding coordinated with described guide part Groove.

12. fixtures according to claim 10, it is characterised in that: described butting section is pivotable to be connected to described support and puts down On face.