A kind of lathe of turning large-diameter steel pipe
The utility model relates to a kind of lathe of turning steel pipe, relates in particular to a kind of lathe of turning large-diameter steel pipe.
The existing lathe that steel pipe is carried out turning processing such as adverse slope mouth, flat mouth, because the restriction of its main shaft diameter, therefore generally can not the turning large-diameter steel pipe, can only purchase the lathe of suitable large diameter steel pipe separately, reduced utilization rate of equipment and installations, increased production cost.Simultaneously, the bracing frame of the lathe of existing turning steel pipe can not be regulated the height and the depth of parallelism according to demand, not only inconvenient operation, versatility are low, has also influenced adverse slope mouth, the machining accuracy flat mouthful the time, has reduced the qualification rate of fished pipe.
The utility model content
The purpose of this utility model is, a kind of lathe of turning large-diameter steel pipe is provided.It can the common diameter of turning steel pipe, steel pipe that again can turning large-diameter has increased utilization rate of equipment and installations, has reduced production cost; In addition, bracing frame of the present utility model can be regulated the height and the depth of parallelism by demand, not only easy to operate, versatility is higher, and has improved adverse slope mouth, the machining accuracy flat mouthful the time, has improved the qualification rate of fished pipe.
The utility model is achieved in that a kind of lathe of turning large-diameter steel pipe, constitute and comprise lathe mounting and bracing frame, be fixed with motor and turning cutting tool on the lathe mounting, be fixed with on the rotating shaft of motor and clamp the scroll chuck that steel pipe is used, in the lathe of turning large-diameter steel pipe, each claw of described scroll chuck is provided with the lengthening pole.
In the lathe of aforesaid turning large-diameter steel pipe, the length of described lengthening pole is 120～150mm.
In the lathe of aforesaid turning large-diameter steel pipe, it is characterized in that: described lengthening pole surface offers " V " groove.
In the lathe of aforesaid turning large-diameter steel pipe, described bracing frame formation comprises base for supporting, and the top of base for supporting is fixed with brace table, and the brace table surface offers roller groove, and support roller is set in the roller groove.
In the lathe of aforesaid turning large-diameter steel pipe, described brace table formation comprises back-up block, and the back-up block bottom surface is fixed with the connection screw mandrel, connects the back timber that screw mandrel passes base for supporting, connects screw mandrel and fixes by nut and base for supporting.
Compared with prior art, electric machine rotational axis of the present utility model is provided with scroll chuck, each claw of scroll chuck also is welded with the lengthening pole of 120～150mm, the position of claw in guide rail reaches the steel pipe that clamps arbitrary diameter in the scroll chuck by regulating, need not to purchase separately suitable large diameter turning lathe, increase utilization rate of equipment and installations, reduced production cost; Lengthening pole several roads " V " groove of getting on the bus has increased skin-friction force, make scroll chuck more firm, stably clamp steel pipe; In addition, bracing frame of the present utility model can be according to demand by connecting the height of the nut adjusting supporting steel pipe on the screw mandrel, regulate the depth of parallelism of supporting steel pipe by the support roller in the roller groove, not only easy to operate, versatility is higher, and improved adverse slope mouth, the machining accuracy when putting down mouth, improved the qualification rate of fished pipe.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is structural representations of bracing frame;
Accompanying drawing 3 is structural representations of scroll chuck.
Reference numeral is: 1-lathe mounting, 2-bracing frame, 3-motor, 4-turning cutting tool, 5-scroll chuck, 6-claw, the 7-pole that extends, 8-base for supporting, 9-brace table, 10-roller groove, the 11-support roller, the 12-back-up block, 13-connects screw mandrel, 14-back timber, 15-nut.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as the foundation of the utility model being done any restriction.
Embodiment: a kind of lathe of turning large-diameter steel pipe, as shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, formation comprises lathe mounting 1 and bracing frame 2, is fixed with motor 3 and turning cutting tool 4 on the lathe mounting 1, is fixed with on the rotating shaft of motor 3 to clamp the scroll chuck 5 that steel pipe is used; Each claw 6 of scroll chuck 5 is welded with lengthening pole 7, lengthening pole 7 adopts the 45# steel to do, diameter is identical with the width of each claw 6 the 3rd ladder, steel tube inner hole is set on the lengthening pole 7 during work, by regulating the effect that the position of claw in the scroll chuck guide rail reaches the support fixation steel pipe; The length of lengthening pole 7 is 120～150mm, installs on the scroll chuck 5 after the welding of lengthening pole 7, and first car becomes concentricity and the consistent cylinder of motor 3 rotating shafts, again at lengthening pole more than 7 roads " V " groove of getting on the bus, with the increase skin-friction force; Bracing frame 2 formations comprise base for supporting 8, and the top of base for supporting 8 is fixed with brace table 9, and brace table 9 surfaces offer roller groove 10, and support roller 11 is set in the roller groove 10; Brace table 9 formations comprise back-up block 12, back-up block 12 bottom surfaces are fixed with and connect screw mandrel 13, connect screw mandrel 13 and can use common on the market common screw mandrel, connect the back timber 14 that screw mandrel 13 passes base for supporting 8, by be arranged on back timber 14 both sides with is connected screw mandrel 13 nut engaged 15 and fixes with base for supporting 8.