CN201711770U - Adjustable bracket - Google Patents

Abstract

The utility model discloses an adjustable bracket, belongs to the technical field of mechanical manufacture and relates to lathe equipment, which is particularly suitable for a thin and ultralong workpiece which needs to be inserted into a spindle to be processed. The adjustable bracket mainly comprises four landing jacking bolts on a square base. A screw thread supporting rod welded on the square base is screwed with an external screw thread of a screw thread adjusting sleeve. An internal screw thread of the screw thread adjusting sleeve is screwed with a stud welded under a bottom plate. The bottom plate is provided with two roller brackets for supporting the workpiece, wherein the center distance of the two roller brackets can be adjusted. The adjustable bracket has the advantages of safety, reliability and convenient and rapid center adjustment. The four jacking bolts are contacted with the ground so as to make the bracket supported stably, reduce auxiliary processing time and improve labor productivity.

Description

Adjustable carriage

Technical field: the utility model belongs to machinery manufacturing technology field, is specifically related to a kind of adjustable carriage of lathe accessories, is particularly useful for piercing into main shaft processes thin and super long workpiece.

Background technology: at present, near the carriage of lathe just is welded with steel pipe, cramp bar, the chassis of semicircle, or is fixed on v block and builds on the estrade.Workpiece and carriage produce sliding friction and cause the surface of the work damage in process like this, and the center of adjustment height ratio has prolonged non-cutting time than trouble, cause the waste of manpower and materials, sometimes workpiece is produced on carriage beat to adjust accurately so that the center is high-leveled and difficult especially, have unsafe factor.The center decentraction of workpiece and lathe can make workpiece produce in rotation and deflect, and noise is bigger, causes lathe damage, reduces lathe service life.

Summary of the invention: the purpose of this utility model is at the problems referred to above, and a kind of adjustable carriage that design proposes.

The adjustable carriage of the utility model adopts flexible roller to contact with workpiece.It is convenient and swift that this carriage is adjusted workpiece centre, guarantees that lathe, workpiece are concentric, and the protection lathe is injury-free, shortened processing non-cutting time, improved production efficiency.

The utility model is achieved like this: adjustable carriage mainly comprises: plinth, plinth is provided with four jacking screws that land, the external screw thread that is welded on threaded support rods on the plinth and threaded adjusting cover screws, the internal thread of threaded adjusting cover screws with the double-screw bolt that is welded under the base plate, and base plate is provided with tunable center apart from two rolling wheel supports that are used for holding workpieces.

Description of drawings: accompanying drawing 1 is the structural representation of the utility model embodiment.

In the accompanying drawing, the 1-plinth; The 2-jacking screw; The 3-threaded support rods; 4-dextrorotation locknut; 5-threaded adjusting cover; The left-handed locknut of 6-; The 7-double-screw bolt; The 8-base plate; The 9-rolling wheel support; The 10-roller; The 12-thread handle; The 13-guard circle; The 14-workpiece.

The specific embodiment: the utility model structure is elaborated below in conjunction with drawings and Examples.

Embodiment: present embodiment as shown in Figure 1, plinth 1 is welded as a whole with threaded support rods 3, the external screw thread (dextrorotation) of threaded adjusting cover 5 screws with cramp bar 3 internal threads, internal thread (left-handed) screws with the double-screw bolt 7 of base plate 8 welding, and eight kidney shape holes supply rolling wheel support 9 according to diameter of work regulating wheel distance on the base plate.Flexible roller adopts nylon material.Guard circle 13 can be opened, and adds man-hour with thread handle 12 closures, prevents to make workpiece break away from support because of the operate miss rotating speed is too high.

Select one or several adjustable support to be placed in the headstock back according to workpiece length during operation by suitable distance, basically with main-shaft axis up and down to directly.Workpiece by main shaft to chuck pretension clamping, 1 four cheese head screws 2 of jack-up base, and then adjust left and right sides jacking screw and threaded adjusting cover 5, make workpiece 14 in main shaft up and down distance equate that just workpiece and main shaft are in concentric circles.Locking dextrorotation locknut 4 and left-handed locknut 6. other adjustable brackets are in like manner adjusted the closed guard circle in back successively, the threaded together handle, and the fastening workpiece of chuck selects suitable rotating speed to carry out machining.

The present embodiment adjustable bracket is safe and reliable, and flexible roller reduces workpiece and deflects rotation, and running has steadily been protected surface of the work, has eliminated noise.It is convenient and swift that this adjustable carriage is adjusted center, and four jacking screw kiss the earths make bearing bracket stable, reduced processing non-cutting time, improved labor productivity.

Claims (1)

1. adjustable carriage, it is characterized in that it mainly comprises plinth, plinth is provided with four jacking screws that land, the external screw thread that is welded on threaded support rods on the plinth and threaded adjusting cover screws, the internal thread of threaded adjusting cover screws with the double-screw bolt that is welded under the base plate, and base plate is provided with tunable center apart from two rolling wheel supports that are used for holding workpieces.

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