Fast-clamping clamp
Technical field
The present invention relates to clamp art, especially a kind of fast-clamping clamp.
Background technology
When carrying out process operation to workpiece, in order to ensure crudy, usually using fixture location and clamping workpiece to be processed, mobile to avoid the workpiece in process to produce, and cause and occur deviation, thus cause crudy unstable.Existing a kind of fixture comprises base plate and is installed on the alignment pin on base plate and is connected with the bearing of housing screw, there is following deficiency in the fixture of this structure: after Workpiece fixing, manual rotation housing screw is needed to carry out workpiece pressing, after machining, derotation housing screw again, to take out workpiece, this clamping inconvenient operation, and reduce clamping efficiency.
Summary of the invention
The object of this invention is to provide a kind of fast-clamping clamp, this fixture can solve the inconvenience of existing fixture operation and the inefficient problem of clamping.
In order to solve the problem, the technical solution used in the present invention is: this fast-clamping clamp comprises base plate and the bearing that is arranged on base plate and alignment pin, described base plate is fixed with spring, and described spring is connected to one end of a depression bar, and the other end of described depression bar is hinged with a coupler body; Described bearing is fixed with a cross bar, the described depression bar position corresponding to described cross bar offers a breach, and described cross bar snaps in described breach.
In the technical scheme of above-mentioned fast-clamping clamp, technical scheme can also be more specifically: described base plate is provided with sheath, and described spring inserts in sheath.
Further, described base plate offers multiple locating hole.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, by the coupler body of depression bar one end, can the bottom of snap catch base plate, make depression bar workpiece pressing under the pulling force effect of spring, the operation of its clamping is more convenient, and clamping efficiency is high;
2, the setting of cross bar, be the fulcrum as depression bar, the breach corresponding to cross bar offered by depression bar, is conducive to the operation pressed down, and moves with the length direction of limit depression bar when impaction state along depression bar;
3, sheath user protects spring, and plays guiding and restriction to the draw direction of spring;
4, on base plate, offer multiple locating hole, alignment pin can be inserted in different positions as required.
Accompanying drawing explanation
Fig. 1 is the structure of this fast-clamping clamp is by scheming.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is depression bar breach schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Fast-clamping clamp shown in Fig. 1 mainly comprises base plate 1, bearing 7, cross bar 6, depression bar 4, spring 3, coupler body 8 and alignment pin 5, bearing 7 is fixed on base plate 1, bearing 7 has two otic placodes be oppositely arranged, a cross bar 6 is connected with between two otic placodes, base plate 1 is fixed with the spring 3 erect and arrange, the axis of spring 3 is arranged in the plane of cross bar 6 cross section place, base plate 1 is provided with sheath 2 in the periphery of spring 3, the upper end of spring 3 is connected to one end of depression bar 4, spring 3 pairs of depression bars 4 play pulling force effect, the other end of depression bar 4 is hinged with coupler body 8, the downside of depression bar 4 and the appropriate section of cross bar 6 offer the breach 4-1 snapped in for cross bar 6, see Fig. 3, it is worth mentioning that, base plate 1 offers multiple locating hole 10, according to shape and the size of workpiece, alignment pin 5 can be inserted in different locating holes 10, see Fig. 2.
During use, workpiece to be processed 9 is placed on base plate 1, makes workpiece 9 be between bearing 7 and sheath 2, adjustment workpiece 9 position, make each lateral edges adjacent place of workpiece 9 all have locating hole 10, then alignment pin 5 is inserted in these locating holes 10, workpiece 9 can be limited and produce lateral displacement; Grip depression bar 4, droped to the ground, and make the cross bar 6 of bearing 7 snap in depression bar 4 breach 4-1, now, with cross bar 6 for fulcrum, depression bar 4 one end pressure of coupler body 8 will be hinged with, depression bar 4, around cross bar+rotation, when then coupler body 8 being caught on the bottom of base plate 1, can be let go, other end return under the pulling force effect of spring 3 of depression bar 4, thus workpiece 9 is pressed between depression bar 4 and base plate 1.After having welded, by depression bar 4 near one end of coupler body 8 pressure, by coupler body 8 to inner rotary disengaging plate body, then pick up depression bar 4, take out workpiece 9.