CN201816101U - Fixture - Google Patents

Abstract

The utility model relates to a fixture which comprises a base frame, a support rod component, a fixed guide rail, a fixed jaw, a movable guide rail and a clamping mechanism that is matched and connected with the base frame, wherein the clamping mechanism comprises a pushing arm used for driving the movable guide rail to move; one end of the clamping mechanism is pivoted with the pushing arm by a pushing arm pivot shaft, and the other end is pivoted with a lever of the base frame by a lever pivot shaft; the clamping mechanism also comprises an elastic element arranged between the base frame and the lever; and the elastic element is connected with one side of the lever far away from the pushing arm pivot shaft. The clamping mechanism of the fixture is simple in structure and lower in cost.

Description

Anchor clamps

Technical field

The utility model belongs to the technical field of woodworking machinery, relates in particular to a kind of anchor clamps with clamping mechanism simple in structure.

Background technology

Traditional bench vice is installed on the vice bench, is used for the clamping workpiece to be machined, be convenient to pincers worker to workpiece file, craft or machining such as saw.But screw-nut structure is mostly adopted in its clamping, can not clamp fast and lock.

At the problems referred to above, the person skilled in art has also done a lot of improvement.Designed the Woodworker clamp that can realize quick-clamping, this Woodworker clamp comprises pedestal, fulcrum bar component, guide rail, decides jaw, movable clamp port.Quick clamping mechanism is installed on the pedestal.Quick clamping mechanism comprise with pivot one be installed in lever on the pedestal, be installed in the lever lower end pedal, with pivot two be installed in the lever upper end and have projection the propelling arm, sliding is arranged at leading arm on the pedestal, is arranged on extension spring that advances between arm and the leading arm and the groove that cooperates with projection, its further groove is arranged on the described moving guide rail.Also be provided with stage clip advancing between arm and the pedestal, under the original state, the above-mentioned stage clip jack-up projection that makes progress, but projection still is in the state that is separated with groove.During work, the operator down steps pedal with pin, and pedal just drives lever, pivot two successively and advances arm, push away before will advancing arm, when advancing the arm reach, because of the tension force effect of stage clip, advance the projection of arm can enter into groove on the moving guide rail successively, and will move guide rail and push certain distance forward.When unclamping pedal, under the effect of extension spring, advance arm to retreat, lever and pedal reset, and projection and groove break away from simultaneously.The clamping mechanism structure of this Woodworker clamp is very complicated, and cost is higher.

The utility model content

Technical problem to be solved in the utility model: a kind of anchor clamps are provided, and these anchor clamps have clamping mechanism simple in structure.

The technical scheme that its technical problem that solves the utility model adopts: a kind of anchor clamps comprise: the pedestal with first end and the second end; Folding and described pedestal connects and is used to support the fulcrum bar component of described pedestal; Be located at the guide rail of deciding on the described pedestal; Be located at the jaw of deciding on the described first end; Decide that guide rail connects and an end is provided with the moving guide rail of movable clamp port with described; The clamping mechanism that connects with described pedestal, described clamping mechanism comprises the propelling arm that drives moving guide rail movement, the lever that one end is connected by advancing the arm pivot to pivot with described propelling arm, the other end pivots and is connected by lever pivot and described pedestal, described clamping mechanism also comprises the flexible member of being located between described pedestal and the described lever, and the side away from described propelling arm pivot on described flexible member and the described lever links to each other.

Preferably, described flexible member is extension spring.

Preferably, described extension spring axis is between described propelling arm pivot and lever pivot.

Preferably, the axle center of the tie point of described flexible member and described lever and described propelling arm pivot and lever pivot forms a triangle.

Preferably, the junction of described extension spring and described pedestal is provided with bolt, and described bolt is used to regulate the pretightning force of extension spring.

Preferably, described extension spring is set to two.

Preferably, described clamping mechanism also comprises pivoting and is located at the pedal of described lever.

Preferably, described lever is provided with the hole, and described pedal is provided with operationally the pin that connects with described hole.

Preferably, described pin is provided with the backstop groove that connects with described hole.

Compared with prior art, the beneficial effects of the utility model: flexible member is located between described pedestal and the described lever, and the side away from described propelling arm pivot links to each other on described flexible member and the described lever.Therefore make that the clamping mechanism of these anchor clamps is simple in structure, cost is lower.

Description of drawings

Above-described the purpose of this utility model, technical scheme and beneficial effect can be described and clearly acquisition simultaneously in conjunction with the accompanying drawings by the following detailed description that can realize specific embodiment of the utility model.

Identical label in accompanying drawing and the specification is used to represent element identical or that be equal to symbol.

Fig. 1 is the schematic diagram of the duty of the anchor clamps that provide of the utility model embodiment.

Fig. 2 is the partial exploded view of anchor clamps among Fig. 1.

Fig. 3 is the partial cutaway diagrammatic sketch of anchor clamps among Fig. 1.

Fig. 4 is the partial enlarged drawing of A position among Fig. 3.

Fig. 5 is the partial enlarged drawing of B position among Fig. 3.

Fig. 6 is the partial enlarged drawing of C position among Fig. 3.

Fig. 7 is along the cutaway view Amplified image of D-D direction among Fig. 3.

Fig. 8 is the left view of anchor clamps among Fig. 1.

Fig. 9 is along the cutaway view Amplified image of E-E direction among Fig. 8.

Figure 10 is the schematic diagram of anchor clamps travel position among Fig. 1.

Schematic diagram when Figure 11 is anchor clamps collection among Fig. 1, packing or carrying state.

Front view when Figure 12 is anchor clamps collection among Fig. 1, packing or carrying state.

Figure 13 is the schematic diagram that the moving guide rail of anchor clamps is in second duty among Fig. 1.

Figure 14 is the schematic diagram that the moving guide rail of anchor clamps is in first duty among Fig. 1, and this moment, movable clamp port was in maximum distance apart to deciding jaw.

Figure 15 is the schematic diagram that the moving guide rail of anchor clamps is in second duty among Fig. 1, and this moment, movable clamp port was in maximum distance apart to deciding jaw.

1. pedestal 11. first ends 12. the second ends

13. plate washer 14. accepting grooves 15. spacer pins

2. fulcrum bar component 21. first poles 211. stopper sections

212. bracing or strutting arrangement 213,214 support members 215. base plates

216. accepting groove 217. supporting pads 218. screws

219. screw 22. second poles 23. the 3rd pole

231. elongated slot 232. first ends 233. the second ends

234. bracing or strutting arrangement 235,236 support members 237. base plates

238. accepting groove 239. supporting pads 240. screws

24. first pivot, 25. second pivots 26. the 3rd pivot

3. decide guide rail 31. and decide jaw 32. first clamping faces

4. moving guide rail 41. movable clamp ports 42. grooves

43. second clamping face 44. the 3rd clamping face, 51. wheels

52. the axis of rolling 53. installation portions 54. draw-in grooves

55. nut 6. clamping mechanisms 61. levers

62. pedal 63. lever pivot 631. axle center

64. Wushu axle 65. advances arm 66. extension springs

661. extension spring axis 662. tie points 663. bolts

67. projection 68. torsion springs 69. advance the arm pivot

691. axle center 7. locking devices, 71. guide pillars

72. locking button 73. connecting rods 74. slide blocks

75. swing seat 8. fixtures 81. connectors

82. sliding part 83. flexible members 84. screws

85. lid 86. slotted holes 87. contact-making surfaces

88. inclined-plane 9. the 3rd fixture 92. screw rods

93. button 94. clamping element L1max, L2max. ultimate range

The specific embodiment

The utility model discloses a kind of anchor clamps, now describe with specific embodiment.

As shown in Figure 1, a kind of anchor clamps, comprise pedestal 1, foldingly be arranged on fulcrum bar component 2 on the pedestal 1, be separately fixed at pedestal 1 both sides decide guide rail 3, moving guide rail 4 and decide jaw 31, movable clamp port 41 and be installed in be used to drive the clamping mechanism 6 that moving guide rail 4 moves on the pedestal 1, wherein moving guide rail 4 is decided on the guide rail 3 along being arranged on of E direction slip, pedestal 1 has first end 11 and the second end 12, and also is provided with plate washer 13 on the first end 11.Decide to decide jaw 31 and have first clamping face 32 on the first end 11 that jaw 31 is fixedly installed on pedestal 1.Moving guide rail 4 extends and has relative two ends along longitudinally, and an end of moving guide rail 4 is provided with movable clamp port 41, movable clamp port 41 have back to second clamping face 43 and the 3rd clamping face 44.

As shown in Figure 1 and Figure 2, fulcrum bar component 2 comprises that first pole 21, second pole 22 and the 3rd pole 23, the first poles 21, second pole 22 and the 3rd pole 23 are connected with pedestal 1 by first pivot 24, second pivot 25 and the 3rd pivot 26 respectively.First pole 21, second pole 22 all are arranged on this first end 11, and the 3rd pole 23 is arranged on the second end 12 of pedestal 1.

These anchor clamps also are provided with the conveying arrangement of convenient carrying, this conveying arrangement comprises wheel 51, rolling by wheel 51 is transported, be transportation more reposefully in addition, wheel 51 is provided with two, and two wheels 51 are arranged on the first end 11 symmetrically, make that like this center of gravity of whole anchor clamps is lower, have further guaranteed the steady of transportation; And, wheel 51 can be arranged on the lower position of first end 11 in order to save the trouble of packaging space and dismounting wheel.The diameter of this wheel 51 is less, can not take very big space; And the material of wheel 51 is preferably made by material toughness such as rubber, high-intensity, and it is convenient to make that like this wheel 51 rolls.

With further reference to Fig. 2, on pedestal 1, be provided with the axis of rolling 52, be convenient transportation, it is that the E direction is vertical mutually that the bearing of trend of the axis of rolling 52 is arranged to the glide direction of moving guide rail 4, and the axis of rolling 52 preferably is set to bolt, and cost is very low like this.Baffle plate 13 is provided with installation portion 53, and installation portion 53 is provided with draw-in groove 54, and wheel 51 is arranged on the axis of rolling 52, and the axis of rolling 52 is arranged in the draw-in groove 54, and nut 55 lock onto the axis of rolling 52 that is provided with wheel on the installation portion 53.

With further reference to Fig. 3, Fig. 4, drive the clamping mechanism 6 of moving guide rail 4 motions, comprise the propelling arm 65, the lever 61 that drive moving guide rail movement, lever 61 1 ends are connected with advancing arm 65 pivots by advancing arm pivot 69, lever 61 other ends pivot with pedestal 1 by lever pivot 63 and are connected, advance on the arm 65 and have projection 67, also comprise by pedal pivot axis 64 be installed in lever 61 lower ends pedal 62, be arranged on lever 61 and pedestal 1 between flexible member, link to each other away from a side that advances arm pivot 69 on flexible member and the lever 61.In this preferred embodiment, flexible member is set to extension spring 66.The other end of extension spring 66 is arranged on second end 12 of pedestal 1.Certainly, extension spring also can replace with other elastic-like element.Clamping mechanism 6 also comprises the groove 42 that cooperates with projection 67, and its further groove 42 is arranged on the moving guide rail 4.Adopt extension spring 66 to be arranged on design between second end 12 of lever 61 and pedestal 1, structure is very simple, and cost is lower.Also be provided with biasing device between propelling arm 65 and lever 61, preferred, biasing device is set to torsion spring 68.Lever 61 is provided with pin 611, and torsion spring 68 1 ends are resisted against and advance arm 65, and the other end of torsion spring 68 is resisted against pin 611.Under the original state, this torsion spring 68 is jack-up projection 67 upwards, but projection 67 still is in the state that is separated with groove 42, and the operator can freely spur moving guide rail 4 and slided on pedestal 1 this moment.Have only when tramping with one's feet down pedal 62, under the effect of lever 61, advance arm 65 to produce pivoting action, make projection 67 to mesh with groove 42.

Same intervals ground is provided with a plurality of grooves 42 on the lengthwise bearing of trend of moving in addition guide rail 4, thereby can be drawn to a plurality of positions to moving guide rail 4, and then change movable clamp port 41 and decide distance between the jaw 31, is used for the workpiece of clamping different in width.

During work, with pin step pedal 62 down, pedal 62 drives lever 61 around 63 rotations of the 4th pivot, arrive as dotted line position among Fig. 3, and advance arm 65 under the effect of lever 61, to move to close direction of deciding jaw 31, owing to the effect of lever 61, projection 67 and groove 42 engagements that this advances arm 65 drive and move guide rail 4 to pushing certain distance near the direction of deciding jaw 31 simultaneously.When unclamping pedal 62, under the effect of extension spring 66, advance arm 65 to retreat, lever 61 and pedal 62 reset, and projection 67 breaks away from groove 42 simultaneously.For lever 61 and pedal 62 are resetted fast, extension spring 66 is set to two in addition.So, just can with move guide rail 4 together with movable clamp port 41 fast to front clamp.

In this preferred embodiment, extension spring axis 661 is advancing between arm pivot 69 and the lever pivot 63.The tie point of above-mentioned in addition flexible member and lever 61 forms a triangle with the axle center 631 of axle center 691 that advances arm pivot 69 and lever pivot 63.

Moreover, to install for convenient, extension spring 66 is provided with bolt 662 with the junction of pedestal 1, and bolt 662 is used to regulate the pretightning force of extension spring 66.When extension spring 66 is installed, at first unscrew bolt 662, wait install extension spring 66 after, screw bolt 662 again.After anchor clamps were through long-time the use, the installation of extension spring 66 may fluff in addition, thereby reset effect descends, and can further screw bolt 662 tension extension springs 66 by following.Pedal 62 can be around the folded inside (as dotted line in Fig. 3 shown in) of pedal pivot axis 64 to pedestal 1 in addition.

As shown in Figure 3, after arriving required clamped position, just can the position of this movable clamp port 41 be locked by the locking device 7 that is arranged between pedestal 1 and the lever 51.This locking device 7 comprises the guide pillar 71 that is pivotally connected on the lever 61, be slidingly arranged in the cage knob 72 on the plate washer 13, be connected the connecting rod 73 in the hole at cage knob 72 back sides, and be installed in the slide block 74 of connecting rod 73 lower ends, and pivot is connected the swing seat 75 on the slide block 74, and be arranged on back-moving spring (not shown) between slide block 74 and the swing seat 75, wherein the base plate of swing seat 75 is provided with the hole of accommodating guide pillar 71, ought depress cage knob 72 downwards like this, cage knob 72 is drivening rod 73 successively just, slide block 74 moves down, upwards provoke and will swing seat 75, and swing seat 75 is upwards provoked, make its base plate block guide pillar 71, moving upward of guide pillar is locked like this, at this moment only need step pedal 72, just can be with movable clamp port 71 lockings.And if want release, only need cage knob 72 is upwards lifted just passable.

As Fig. 1, Fig. 2 and shown in Figure 3 because first pole 21, second pole 22 can be blocked by plate washer 13 when folding laterally, therefore makes the pole 21 of winning, second pole 22 can only center on first pivot 24, second pivot 25 respectively and pivots to the inboard of pedestal 1 and fold; And the 3rd pole 23 is provided with the elongated slot 231 of accommodating the 3rd pivot 26, and so, the 3rd pole 23 both can be folding to the pedestal medial and lateral around the 3rd pivot 26, also can slide with respect to the 3rd pivot 26.Because the 3rd pole 23 is provided with elongated slot 231, make the 3rd pole 23 can arrive primary importance, just duty fast in addition.The pedestal 1 of these anchor clamps is provided with the accepting groove 14 of accommodating the 3rd pole first end 232 in addition.

Fulcrum bar component 2 can move between first, second, third position, as Fig. 1, Fig. 2 and shown in Figure 3, in primary importance, duty just, its first pole 21, second pole 22, the 3rd pole 23 all are in non-folded state, form a tripod and come together support pedestal 1, make it be in suitable height, handled easily person work, this moment, pedal 62 also was in non-folded state.

In the second place, travel position just, as shown in Figure 5, first, second pole 21,22 is covered up to pedestal 1 folded inside, and as the transportation handle, this moment, pedal 62 also was in folded state to the 3rd pole 23 to pedestal 1 folded.And wheel 51 kiss the earths, and pedestal 1 is with respect to ground inclination, the operator just can conveniently transport this anchor clamps like this.

In the 3rd position, just storage configuration or packed state, as shown in Figure 6 and Figure 7, at this moment first, second, third pole 21,22,23 all is covered up to pedestal 1 folded inside, add that wheel 51 is arranged on the centre of pedestal 1, and the diameter of wheel 51 is also less, so reduced collection or packaging volume, wheel 51 also need not dismounting when packing or collection, very convenient.Certainly, when these anchor clamps are transported in short distance if desired, also can the 3rd pole 23 be transported as carrying handle at this state.

With reference to Fig. 2, Fig. 8 and shown in Figure 9, all stablize in several positions in order to make pole, between first pole 21 and pedestal 1, be provided with the fixture 8 of fixing first pole 21, certainly, between second pole 22 and pedestal 1, be provided with fixture 8 with spline structure, be example just now, describe the concrete structure of this fixture in detail with first pole 21.Here fixture 8 comprises the connector 81 that is fixedly set on the pedestal 1, be arranged at the sliding part 82 on the connector 81 slippingly, be arranged on the flexible member 83 between connector 81 and the sliding part 82 and be connected in lid 85 on the sliding part 82 by screw 84.In this preferred embodiment, flexible member 83 is a stage clip.Certainly can also be replaced by other flexible member such as extension spring or torsion spring.Form receiving space between connector 81 and the pedestal 1, sliding part 82 and stage clip 83 are arranged in the receiving space, and connector 81 is provided with the slotted hole 86 that screw 84 passes, and slotted hole 86 extends along the direction of sliding part 82 slippages.Sliding part 82 is provided with first counterpart and second counterpart in addition, and here first counterpart is that contact-making surface 87, the second counterparts of sliding part 82 are inclined-plane 88.

When first pole 21 is in non-folded state, this moment sliding part 82 under the active force of stage clip 83, the contact-making surface 87 of sliding part 82 closely contacts with first pole 21, fixes first pole 21, makes the support foundation 1 that it can be stable.

When needs fold first pole 21, the operator only needs mobile lid 85, thereby drive sliding part 82 with respect to connector 81 slippages, throw off up to contact-making surface 87 and pole 21, contact-making surface 87 just can not be fixed first pole 21 like this, make first pole 21 around 24 motions of first pivot then, arrive as shown in Figure 10 and Figure 11, at this moment first pole 21 is in folded state.Same second pole 22 is identical with the method for folding of first pole 21.

As Figure 11 and shown in Figure 12, after folding first pole 21 and second pole 22, the Folding pedal plate 62 again, pedal 62 is provided with pin 621, pin 621 is provided with backstop groove 622, and lever 61 is provided with hole 611, after pedal 62 folds, hole 611 on backstop groove 622 and the lever 61 cooperates, thereby pedal 62 stably is fixed on folded state.

Other first pole 21 is provided with stopper section 211, and when pedal 62 was in folded state, stopper section 211 connected with pedal 62, falls down thereby limit first pole 21, and first pole 21 is limited in folded state.Certainly, on second pole 22, also be provided with stopper section 211, be used for connecting, first pole 21 is limited in folded state with pedal 62 with spline structure.

With reference to Fig. 3 and shown in Figure 7, be provided with the 3rd fixture 9 of fixing the 3rd pole 23 between the 3rd pole 23 and the pedestal 1, this fixture 9 comprises the screw rod 92 of the elongated slot 231 of the side plate that passes pedestal 1 and the 3rd pole 23, the tapped button 93 that cooperates with screw rod 92, and symmetrically arranged clamping element 94, wherein clamping element 94 is arranged at the both sides of the 3rd pole 23 and between the biside plate of pedestal 1, when unscrewing button 94, produce the gap between clamping element 94 and the 3rd pole 23, the 3rd pole 23 just can be around the 3rd pivot 26 in pedestal 1, folded; When arriving desired location, screw knob 93, just can make the 3rd pole 23 fixing.

When the 3rd pole 23 is in non-folded state, the first end 232 of the 3rd pole 23 is accommodated by the accepting groove 14 of pedestal 1, and the button 93 in the 3rd fixture 9 screws, make it come support foundation 1 with first pole 21, second pole, the 22 common tripods of forming, make it be in suitable height, handled easily person work.

When primary importance, duty just, first pole 21, second pole 22, the 3rd pole 23 and pedal 62 all are in non-folded state,

As shown in figure 10, in the second place, travel position just, first pole 21, second pole 22 are covered up to pedestal 1 folded inside, wherein second pole 22 and first pole, 21 symmetries, and first pole 21, second pole 22 make it also fixing at folded state all by pedal 62 backstops; This moment, pedal 62 was covered up to the folded inside of pedestal; And the 3rd pole 23 is to pedestal 1 folded, and the button 93 by the 3rd fixture 9 screws, make it fixing as the transportation handle with respect to pedestal 1, and wheel 51 kiss the earths, pedestal 1 is with respect to ground inclination, the operator just can transport this anchor clamps easily by pulling the 3rd pole 23 like this, and is very convenient, quick.

As Figure 11 and shown in Figure 12, in the 3rd position, just storage configuration, packed state or carrying state, first pole 21, second pole 22 and the 3rd pole 23 all are covered up to pedestal 1 folded inside, and at this moment pedal 52 also is in folded state, add that wheel 51 is arranged on the centre of pedestal 1, and the diameter of wheel 51 is also less, so can reduce the collection or the packaging volume of anchor clamps effectively, wheel 51 also need not dismounting when packing or collection, very convenient.Certainly, when these anchor clamps are transported in short distance if desired, also can the 3rd pole 23 be transported as carrying handle at this state.

Simultaneously in order to increase the friction on fulcrum bar component 2 and ground, can make its more stable support foundation 1, as shown in Figure 2, an end that contacts with ground first, second pole 21,22 is provided with the bracing or strutting arrangement 212 of same structure, and existing is that example illustrates the structure that it is concrete with first pole 21.

The profile of this bracing or strutting arrangement 212 is a stirrup shape, and floor space is bigger, and is more stable, and can also hold operator's a pin in the middle of it, and the operator can will ride inside when needed, to increase stability.This bracing or strutting arrangement 212 comprises the support member 213,214 that is oppositely arranged, and the base plate 215 of connection support member 213,214, and the not direct kiss the earth of this base plate 215, as shown in Figure 5, it has formed a bigger accepting groove 216, contain the supporting pad 217 that directly contacts with ground at these accepting groove 216 inner rings, this supporting pad 217 is connected with base plate 215 by screw 218.Increase the frictional force with ground, and also can prevent to damage ground.

Certainly also be provided with screw 219 on base plate 215, this bracing or strutting arrangement 212 can also be fixed on the ground in needs, so design makes anchor clamps of the present utility model more stable in use.

As shown in Figure 2, the profile that is provided with the 3rd bracing or strutting arrangement 234, the three bracing or strutting arrangements 234 on the second end 233 that contacts with ground on the 3rd pole 23 also is a stirrup shape, and this structure floor space is bigger, more stable.The 3rd bracing or strutting arrangement 234 comprises the support member 235,236 that is oppositely arranged, and the base plate 237 of connection support member 235,236, and the not direct kiss the earth of this base plate 237, as shown in Figure 6, it has formed a bigger accepting groove 238, contain the supporting pad 239 that directly contacts with ground at these accepting groove 238 inner rings, this supporting pad 239 connects by screw 240 and base plate 237.Increased the frictional force with ground, made support foundation more stable, and also can prevent to damage ground.

Shown in Fig. 2 and 11, the base plate 237 of the 3rd bracing or strutting arrangement 234 is provided with two draw-in grooves 241, pedestal 1 is provided with spacer pin 15, when the 3rd pole 23 is in folded state, draw-in groove 241 connects with spacer pin 15, thereby make the 3rd pole 23 be fixed in folded state more firmly, such the 3rd pole 23 can be used as carrying handle.

With further reference to Figure 12,,, form enough spaces between the 3rd pole 23 and the pedal 62 for operator's gripping when the 3rd pole 23 during as carrying handle because the 3rd pole 23 adopted said structure.Therefore, anchor clamps of the present utility model have good human-machine operation.In order to reduce packaging space, the distance L 3 between the 3rd pole 23 and the pedal 62 is preferably designed for 36.7mm in addition.

Moving in addition guide rail 4 has first duty and second duty, and as shown in figures 1 and 3, moving guide rail 4 is in first duty, and this moment second, clamping face 43 was faced first clamping face 32 of deciding jaw 31, and promptly moving guide rail 4 is in positive holding position.

Changing direction insertion after moving guide rail 4 can also be pulled out fully decides on the guide rail 3, can enlarge the clamping range of these anchor clamps like this, as shown in figure 13, moving guide rail 4 is in second duty, this moment the 3rd, clamping face 44 was faced first clamping face 32 of deciding jaw 31, and promptly moving guide rail 4 is in anti-holding position.

As shown in figure 13, moving guide rail 4 is in first duty, movable clamp port 41 is adjusted to away from the maximum distance apart of deciding jaw 31, is clamping broad workpiece, this moment movable clamp port 41 second clamping face 43 to the ultimate range L1max of first clamping face 32 of deciding jaw 31 greater than 460mm.Preferably, in order to reduce the volume of whole anchor clamps, this ultimate range L1max is not more than 615mm.Further, this ultimate range L1max equals 615mm.

As shown in figure 15, moving guide rail 4 is in second duty, movable clamp port 41 is adjusted to away from the maximum distance apart of deciding jaw 31, is the wideer workpiece of clamping, this moment movable clamp port 41 the 3rd clamping face 44 to the ultimate range L2max of first clamping face 32 of deciding jaw 31 greater than 940mm.Preferably, this ultimate range L2max is not more than 2000mm.Further, this ultimate range L2max is not more than 1244mm.Further, this ultimate range L2max equals 1244mm.These anchor clamps can clamping broad workpiece, has the wider scope of application, and can more stable holding workpiece securely.

The above embodiments only are the most preferred embodiments that provides in order to allow those skilled in the art understand the utility model.The utility model is not limited in above-mentioned specific embodiment.Any those skilled in the art easily full of beard and improvement all within inventive concept of the present utility model.

Claims (9)

1. anchor clamps comprise:

Pedestal with first end and the second end;

Folding and described pedestal connects and is used to support the fulcrum bar component of described pedestal;

Be located at the guide rail of deciding on the described pedestal;

Be located at the jaw of deciding on the described first end;

Decide that guide rail connects and an end is provided with the moving guide rail of movable clamp port with described;

With the clamping mechanism that described pedestal connects, described clamping mechanism comprises the propelling arm that drives moving guide rail movement, the lever that an end is connected by advancing the arm pivot to pivot with described propelling arm, the other end pivots and is connected by lever pivot and described pedestal,

It is characterized in that: described clamping mechanism also comprises the flexible member of being located between described pedestal and the described lever, and the side away from described propelling arm pivot on described flexible member and the described lever links to each other.

2. anchor clamps according to claim 1 is characterized in that: described flexible member is extension spring.

3. anchor clamps according to claim 2 is characterized in that: described extension spring axis is between described propelling arm pivot and lever pivot.

4. anchor clamps according to claim 1 is characterized in that: the axle center of the tie point of described flexible member and described lever and described propelling arm pivot and lever pivot forms a triangle.

5. anchor clamps according to claim 2 is characterized in that: the junction of described extension spring and described pedestal is provided with bolt, and described bolt is used to regulate the pretightning force of extension spring.

6. anchor clamps according to claim 5 is characterized in that: described extension spring is set to two.

7. anchor clamps according to claim 1 is characterized in that: described clamping mechanism also comprises pivoting is located at the pedal of described lever.

8. anchor clamps according to claim 7 is characterized in that: described lever is provided with the hole, and described pedal is provided with operationally the pin that connects with described hole.

9. anchor clamps according to claim 8 is characterized in that: described pin is provided with the backstop groove that connects with described hole.

Images