A kind of semi-enclosed leading screw slide unit
Technical field
The utility model relates to machinery field, relates in particular to a kind of semi-enclosed leading screw slide unit.
Background technique
Known mechanical arm slide unit module, it is mainly provided with screw rod and slide rail drives and guides working platform linear reciprocation and move at one.It is to connect by power plant the one end that drives screw rod that general slide unit module drives the mode of platform, make screw rod rotate to drive nut to move back and forth, and then platform moved back and forth, the while because of slide block along slide rail move make platform reposefully linear reciprocation move.
But existing slide unit module, is open slide unit mostly, directly leading screw is fixed on slide block, and due to the structure problem of screw rod and slide rail, the precision of slide unit, stability, smooth degree and life-span all have problems.
Model utility content
The utility model for the precision that solves the above-mentioned existing straight line slide unit assembly of mentioning and exist and working life short problem, the semi-enclosed leading screw slide unit of the lead screw transmission that a kind of precision is high is provided, it is fixed on leading screw on slide rail by fixed block and free piece, has improved the precision of slide rail.
Concrete, the utility model provides a kind of semi-enclosed leading screw slide unit, it comprises base and is arranged on the slide rail on base, described slide rail is fixedly installed on described base, described slide rail is single slide rail, on described slide rail, be fixedly installed ball screw, described ball screw is provided with fixed block, free piece and supporting base, described fixed block and free piece are fixedly installed on described slide rail by described supporting base, on described ball screw, be provided with slide block, the intermediate portion hollow of described slide block arranges, described ball screw is located in the intermediate portion of described slide block, in described ball screw, be provided with the first ball chain, in described slide block, be provided with the second ball chain.
Preferably, described ball screw is connected with actuating motor by output shaft.
Preferably, described actuating motor is arranged in motor faceplate, and the output shaft of described ball screw connects described actuating motor by described motor faceplate.
Preferably, be provided with nut and tapped hole in described motor faceplate, described actuating motor is arranged in described motor faceplate by described nut and tapped hole.
Preferably, described actuating motor is connected with sensor.
Preferably, the outer mask of described actuating motor is provided with electrical machinery cover.
Preferably, be also provided with upper cover and side cover on described base, described upper cover and side cover are packaged in the outside of described slide rail.
The leading screw slide unit that the utility model provides, adopts semi-enclosed structure, ball screw and single rail close fit, and precision is high, and the smooth degree of leading screw is high, the long service life of leading screw, has guaranteed the working life of whole straight line slide unit assembly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of ball screw part of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further explained.
As shown in Figures 1 and 2, the utility model provides a kind of semi-enclosed leading screw slide unit, it comprises base 1 and is arranged on the slide rail 2 on base 1, slide rail 2 is fixedly installed on base 1, slide rail 2 is single slide rail, on slide rail 2, be fixedly installed ball screw 3, ball screw 3 is provided with fixed block 31, free piece 32 and supporting base 33, fixed block 31 and free piece 32 are fixedly installed on ball screw 3 on slide rail 2 by supporting base 33, by regulating free piece 32, stroke that can adjustment roll ballscrew, on ball screw 3, be provided with slide block 4, the intermediate portion hollow of slide block 4 arranges, ball screw 3 is located in the intermediate portion of slide block 4, in ball screw 3, be provided with the first ball chain, in slide block, be provided with the second ball chain.
Preferably, ball screw 3 is connected with actuating motor 5 by output shaft.
Preferably, actuating motor 5 is arranged in motor faceplate, and the output shaft of ball screw 3 connects actuating motor 5 by motor faceplate 50.
Preferably, be provided with nut and tapped hole in motor faceplate 50, actuating motor 5 is arranged in motor faceplate 50 by nut and tapped hole.
Preferably, actuating motor 5 is connected with sensor.
Preferably, the outer mask of actuating motor 5 is provided with electrical machinery cover 6.
On base 1, be also provided with upper cover 7 and side cover 8, upper cover 7 and side cover 8 are packaged in the outside of slide rail 2.
The leading screw slide unit that the utility model provides, adopts semi-enclosed structure, ball screw and single rail close fit, and precision is high, and the smooth degree of leading screw is high, the long service life of leading screw, has guaranteed the working life of whole straight line slide unit assembly.
Person of ordinary skill in the field is to be understood that: in the situation that not departing from basic principle of the present utility model; can carry out various modifications, retouching, combination to the utility model, supplement or the replacement of technical characteristics, these are equal to substitute mode or within obviously mode of texturing all falls into protection domain of the present utility model.