A kind of adjustable fixture
The present invention relates to plant equipment, particularly relate to a kind of fixture of holding workpiece.
In machined field, when carrying out processing and manufacturing to workpiece, needing to utilize fixture piece-holder to be lived, carrying out corresponding process operation.Existing fixture needs when holding workpiece to carry out manual operation by operating personnel, is placed into by workpiece on fixture and clamps, and after completion of processing, more manually to be unclamped by fixture, and take out workpiece, waste time and energy, operating efficiency is lower; And existing fixture can only clamp the workpiece of given shape, specific dimensions, versatility is lower.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of adjustable fixture of new structure, make it have more value in industry.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide a kind of can automatically by Workpiece clamping or the fixture unclamped, the adjustable fixture of jaw openings size.
Adjustable fixture of the present invention, comprise base, be arranged at the supporting seat on described base, described supporting seat side is connected with placement platform, described placement platform comprises the claw that two-phase is rotationally connected, one end of described supporting seat is rotatably connected to towards the pressure strip of described placement platform, and described base is provided with and drives described pressure strip to rotate and the driving mechanism be elevated.
Further, the sidewall that described supporting seat arranges described placement platform is provided with two rotate slip respectively arc regulating tank for claw described in two, and described claw is locked in described regulating tank by adjustment screw.
Further, the both sides of described supporting seat one end are all rotatably connected to two connecting rods, and the other end of each described connecting rod is rotationally connected with the both sides of described pressure strip respectively.
Further, cavity is provided with in described base, described cavity slidably connects the slide plate along its horizontal slip, described base side wall is provided with arc chute, the hinge bar driving described slide plate slides is slidably connected in described chute, one end and the described slide plate of described hinge bar are rotationally connected, and the other end is connected with link rotatable described in one of them.
Further, described driving mechanism be can relatively described base move horizontally, with described pressure strip cylinder connected vertically, the other end of described cylinder is connected with described slide plate is vertical.
Further, the height of described chute equals the flexible stroke of described cylinder.
By such scheme, adjustable clamp structure of the present invention is simple, automatically by Workpiece clamping or unclamp, can instead of artificial operation, time saving and energy saving, substantially increases operating efficiency; And the openings of sizes of two claws of placement platform is adjustable, can clamp the workpiece of difformity size, versatility is higher.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is structure side view of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
See Fig. 1 and Fig. 2, the adjustable fixture of one described in a preferred embodiment of the present invention, comprise base 10, be arranged at the supporting seat 20 on base 10, supporting seat 20 side is connected with placement platform 21, this placement platform 21 comprises the claw 22 that two-phase is rotationally connected, and one end of supporting seat 20 is rotatably connected to towards the pressure strip 30 of placement platform 21, and base 10 is provided with and drives pressure strip 30 to rotate and the driving mechanism be elevated.
Rotate two claws 22, openings of sizes between adjustable two claws 22, to clamp the workpiece of different size shape, the sidewall specifically arranging placement platform 21 at supporting seat 20 is established two rotate for two claws 22 the arc regulating tanks 23 slided respectively, claw 22 is locked in regulating tank 23 by adjustment screw 24.Utilize regulating tank 23 to limit the angle of claw 22 rotation, also facilitate fixing claw 22 simultaneously.
Concrete, all be rotationally connected two connecting rods 40 in the both sides of supporting seat 20 one end, be rotationally connected respectively by the other end of each connecting rod 40 with the both sides of pressure strip 30, namely pressure strip 30 is in the process of rotating, all the time with placement platform 21 keeping parallelism, and the distance between placement platform 21 can be regulated.
Because driving mechanism makes pressure strip 30 be elevated in rotation process, therefore pressure strip 30 has the displacement of level, can move horizontally for making driving mechanism and pressure strip 30 simultaneously, can be elevated on rotation limit, limit to make pressure strip 30, the present invention is provided with cavity 11 in base 10, cavity 11 slidably connects the slide plate 12 along its horizontal slip, base 10 sidewall arranges arc chute 13, the hinge bar 14 that the driving slide plate 12 that is slidably connected in chute 13 slides, one end of hinge bar 14 and slide plate 12 are rotationally connected, the other end and one of them connecting rod 40 are rotationally connected.
Driving mechanism in the present invention be can respect thereto 10 move horizontally, with pressure strip 30 cylinder 50 connected vertically, the other end of cylinder 50 is connected with slide plate 12 is vertical.
Preferably, the height of chute 13 equals the flexible stroke of cylinder 50.
The expansion link of cylinder 50 stretches out in process, to the active force that pressure strip 30 applies upwards, under the effect of active force, connecting rod 40 rotates, and driving hinge bar 14 along chute 13 upward sliding, hinge bar 14 drives slide plate 12 to slide in cavity 11, thus cylinder 50 is moved horizontally together in company with slide plate 12, after the expansion link of cylinder 50 stretches out completely, pressure strip 30 arrives highest point; Otherwise, the expansion link of cylinder 50 is in the process of indentation, downward active force is applied to pressure strip 30, under the effect of active force, connecting rod 40 rotates, and drives hinge bar 14 along chute 13 slide downward, hinge bar 14 drives slide plate 12 to skid off cavity 11, thus cylinder 50 is moved horizontally together in company with slide plate 12, after the expansion link of cylinder 50 is fully retracted, pressure strip 30 arrives lowest part.Pressure strip 30 by Workpiece clamping, unclamps workpiece when highest point when lowest part.
Adjustable clamp structure of the present invention is simple, automatically by Workpiece clamping or unclamp, can instead of artificial operation, time saving and energy saving, substantially increases operating efficiency; And the openings of sizes of two claws of placement platform is adjustable, can clamp the workpiece of difformity size, versatility is higher.
The above is only the preferred embodiment of the present invention; be not limited to the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.