CN214237274U - Rapid self-centering device for open impeller turning - Google Patents

Abstract

The utility model relates to the field of machining tools, in particular to a quick self-centering device for processing an open-type impeller wheel vehicle, which comprises a base, a centering sleeve, a fixed disk, a locking screw, a positioning column, a pressing plate, a limiting bolt and a limiting nut, wherein the centering sleeve is arranged in the middle of the base, the base is provided with a positioning groove, the fixed disk is embedded in the positioning groove, the fixed disk is provided with an impeller storage groove, the bottom of the impeller storage groove is fixedly provided with the positioning column at intervals, the locking screw is evenly distributed on the side wall of the impeller storage groove at the circumference, the pressing plate is arranged above the fixed disk, the pressing plate is connected with the base through the limiting bolt and the limiting nut, a driving and moving mechanism is arranged between the centering sleeve and the base, the driving and moving mechanism comprises a centering shaft, a cylinder sleeve, an air pipe and an air pump, the upper end of the centering sleeve is provided with a hub limiting groove, the shaft center of the centering sleeve, the shaft center of the base and the shaft center of the fixed disk are on the same axis, the utility model discloses compatible good, extensive applicability, impeller centering are convenient, with low costs, machining efficiency is high fast.

Description

Rapid self-centering device for open impeller turning

Technical Field

The utility model relates to a machining frock field specifically indicates an open leaf wheel car processing is with quick from centring means.

Background

Open impeller does not have the front shroud, and the runner is generally narrower, and structural design is single thin, and the rigidity is relatively poor, and the processing degree of difficulty is big, shakes the sword, and it is serious to warp, and roughness is poor, and machining efficiency is low, and general processing method has three kinds: the first small cutting depth and slow feeding has the advantages that a tool is not needed, and the defects that a four-jaw chuck is used, the clamping and aligning time is long, and the machining efficiency is low and the quality is unstable due to poor rigidity, tool vibration, deformation and poor surface roughness; the second adopts a filling material, enhances the whole rigidity process, generally adopts gypsum filling, has the advantages that the whole rigidity is obviously improved, has the defects of long clamping and aligning time due to the use of a four-jaw chuck, increased cost due to the use of gypsum, stress deformation generated during processing, and deformation of an impeller due to the fact that the gypsum is not fixed and can not be released after the gypsum is removed and the stress is released; the third method uses a tool to enhance the integral rigidity, is suitable for various impellers, and has better processing effect than the former two methods, but the existing tool has the defects of poor compatibility, need of designing the tool separately, special parts and increased tool cost; the four-jaw chuck is used, so that the clamping and aligning time is long.

Disclosure of Invention

The utility model aims at solving the prior art not enough, provide a simple structure, compatible good, extensive applicability, impeller centering are convenient fast, with low costs, machining efficiency is high from centring means for open impeller car processing.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides an open leaf wheel car processing is with quick from centring means which characterized in that: the impeller positioning device comprises a base, a centering sleeve, a fixed disk, a locking screw, a positioning column, a pressing plate, a limiting bolt and a limiting nut, wherein the centering sleeve is arranged in the middle of the base, the base is provided with a positioning groove, the middle of the positioning groove is provided with a through hole, the fixed disk is embedded in the positioning groove and connected with the base, the middle of the fixed disk is provided with a positioning hole, the fixed disk is provided with an impeller storage groove, the bottom of the impeller storage groove is fixedly provided with the positioning column at intervals, the side wall of the impeller storage groove is uniformly provided with threaded holes at the circumference, the locking screw penetrates through the threaded holes to be in threaded connection with the fixed disk so as to be beneficial to limiting the blades of an open impeller through the locking screw, the pressing plate is arranged above the fixed disk, two sides of the pressing plate are respectively provided with a guide hole, the base is provided with a limiting threaded hole matched with the guide hole, one end of the limiting bolt is in threaded connection with the limiting nut, the other end passes guiding hole, spacing screw hole and base fixed connection in proper order to do benefit to and compress tightly spacingly through the clamp plate to open impeller, the centering sleeve lower extreme is connected with the base, and the upper end passes through the through-hole in proper order, the impeller storage tank is arranged in to the location perforation, the centering sleeve upper end is equipped with the wheel hub spacing groove to do benefit to through the spacing open impeller wheel hub's of wheel hub spacing groove conical surface, the axle center of centering sleeve, the axle center of base and the axle center of fixed disk are on same axis, in order to do benefit to the automatic centering that realizes open impeller.

Be equipped with drive moving mechanism between centering sleeve and the base, drive moving mechanism includes centering shaft, cylinder liner, trachea and air pump, centering sleeve lower extreme and centering shaft fixed connection, in the cylinder liner was arranged in to the centering shaft, centering shaft and cylinder liner seal sliding connection, cylinder liner and base fixed connection, be equipped with the inlet port on the cylinder liner, trachea one end is connected with the inlet port, and the other end is connected with the air pump to do benefit to and exert pressure in being the cylinder liner through the air pump, drive centering shaft shifts up, and the conical surface of the wheel hub of drive centering sleeve upper end to the impeller compresses tightly.

The utility model discloses owing to adopt above-mentioned structure, have simple structure, compatible good, extensive applicability, impeller centering advantage such as quick convenience, with low costs, machining efficiency height.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the open impeller fixed on the fixed disk when the utility model is in use.

Fig. 3 is a cross-sectional view of fig. 2 of the present invention.

Reference numerals: the device comprises a base 1, a centering sleeve 2, a fixed disc 3, a locking screw 4, a positioning column 5, a pressing plate 6, a limiting bolt 7, a limiting nut 8, a positioning through hole 9, an impeller storage groove 10, a hub limiting groove 11, a driving moving mechanism 12, a centering shaft 13 and a cylinder sleeve 14.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

The utility model provides an open leaf wheel car processing is with quick from centring means which characterized in that: the impeller fixing device comprises a base 1, a centering sleeve 2, a fixing disc 3, locking screws 4, positioning columns 5, a pressing plate 6, a limiting bolt 7 and a limiting nut 8, wherein the centering sleeve 2 is arranged in the middle of the base 1, positioning grooves are formed in the base 1, through holes are formed in the middles of the positioning grooves, the fixing disc 3 is embedded in the positioning grooves and connected with the base 1, positioning through holes 9 are formed in the middle of the fixing disc 3, impeller storage grooves 10 are formed in the fixing disc 3, the positioning columns 5 are fixedly arranged at intervals at the bottoms of the impeller storage grooves 10, threaded holes are uniformly distributed in the circumferential direction on the side walls of the impeller storage grooves 10, the locking screws 4 penetrate through the threaded holes to be in threaded connection with the fixing disc 3, so that blades of an open impeller can be limited through the locking screws, the pressing plate 6 is arranged above the fixing disc 3, guide holes are respectively formed in two sides of the pressing plate 6, and limiting threaded holes matched with the guide holes are formed in the base 1, 7 one end of spacing bolt and 8 threaded connections of stop nut, the other end passes guiding hole, spacing screw hole and base 1 fixed connection in proper order to do benefit to and compress tightly spacingly through the clamp plate open impeller, 2 lower extremes of centering sleeve are connected with base 1, and the upper end passes through-hole, location perforation 9 in proper order and arranges in impeller storage tank 10, 2 upper ends of centering sleeve are equipped with wheel hub spacing groove 11 to do benefit to the conical surface through the spacing open impeller wheel hub of wheel hub spacing groove, the axle center of centering sleeve 2, the axle center of base 1 and the axle center of fixed disk 3 are on same axis, in order to do benefit to the automatic centering that realizes open impeller.

Be equipped with drive moving mechanism 12 between centering sleeve 2 and the base 1, drive moving mechanism 12 includes centering shaft 13, cylinder liner 14, trachea and air pump, 2 lower extremes of centering sleeve and 13 fixed connection of centering shaft, centering shaft 13 is arranged in cylinder liner 14, centering shaft 13 and 14 sealed sliding connection of cylinder liner, cylinder liner 14 and 1 fixed connection of base, be equipped with the inlet port on the cylinder liner 14, trachea one end is connected with the inlet port, and the other end is connected with the air pump to do benefit to and exert pressure in being the cylinder liner through the air pump, drive centering shaft shifts up, and the conical surface of the wheel hub of the last butt joint impeller of drive centering sleeve compresses tightly.

As shown in attached figures 1-3, when in use, an open impeller to be processed is placed into an impeller storage groove of a fixed disc, positioning columns arranged at intervals in the impeller storage groove can support the open impeller, the positioning columns can be distributed on the circumference of the axis of the fixed disc, the number of the positioning columns is set according to requirements, the conical surface of a hub of the open impeller faces a hub limiting groove of a centering sleeve, the hub limiting groove is matched and nested with the conical surface of the hub, a pressing plate is pressed on the hub of the open impeller, a limiting bolt penetrates through a guide hole and a limiting threaded hole to be fixed with a base, a limiting nut is sleeved on the limiting bolt and is not locked, a proper moving space is left, an air pump is controlled by an air valve, the air valve is opened, air enters through an air inlet hole to drive a centering shaft to drive the centering sleeve to move upwards, the hub limiting groove of the centering sleeve upwards clamps the conical surface of the hub of the open impeller, and the centering coarse positioning of the open impeller is completed, then the limit nuts on two sides of the pressing plate are screwed, the pressing plate presses the upper end surface of the hub of the open impeller downwards, the lower end surface of the hub of the open impeller enters the hub limit groove of the centering sleeve to be clamped and limited, the blades of the open impeller are abutted against and fixed on the positioning column, and the blades of the open impeller are supported by the positioning column, so that the centering and fine positioning of the open impeller are completed, then the locking screws are sequentially screwed, the number and the positions of the locking screws are determined according to the number and the positions of the blades on the open impeller, the locking screws are abutted against the blades on the impeller, the blades cannot be damaged, the open impeller and the fixed disk form a whole body, at the moment, the axis of the open impeller and the axis of the fixed disk are on the same vertical line, the centering of the impeller is realized, the limit nuts on two sides of the pressing plate are loosened, the impeller and the fixed disk are taken out from the base together, the subsequent processing can be carried out, after the processing is completed, the utility model has the advantages that the locking screws are sequentially unscrewed, the open impeller can be taken down, the utility model can be provided with a plurality of fixed discs, when one fixed disc is taken down for processing, the other fixed disc is taken and placed on the base, the open impeller to be processed is placed, the positioning is carried out according to the method, after the processing of the current group is finished, the open impeller of the latter group is also positioned, the subsequent processing can be taken down for processing, the working efficiency of the processing of the open impeller is greatly improved, the positioning mode of the utility model is simple, the pressing plate presses the upper end surface of the hub, the centering sleeve fixes the lower end surface of the hub, the blades of the open impeller are axially supported by the positioning column when the open impeller is stressed, the blades of the open impeller are abutted and limited by the locking screws, the blades of the open impeller cannot be damaged, the rigidity of the open impeller is increased, meanwhile, one fixed disc can be adapted to the open impellers with different blade numbers, the compatibility is good, the applicability is wide, and the processing cost of the open impeller is indirectly reduced.

The utility model discloses owing to adopt above-mentioned structure, have simple structure, compatible good, extensive applicability, impeller centering advantage such as quick convenience, with low costs, machining efficiency height.

Claims (2)

1. The utility model provides an open leaf wheel car processing is with quick from centring means which characterized in that: the device comprises a base, a centering sleeve, a fixed disk, a locking screw, a positioning column, a pressing plate, a limiting bolt and a limiting nut, wherein the centering sleeve is arranged in the middle of the base, the base is provided with a positioning groove, the middle of the positioning groove is provided with a through hole, the fixed disk is embedded in the positioning groove and connected with the base, the middle of the fixed disk is provided with a positioning hole, the fixed disk is provided with an impeller storage groove, the bottom of the impeller storage groove is fixedly provided with the positioning column at intervals, the side wall of the impeller storage groove is uniformly provided with threaded holes at the circumference, the locking screw penetrates through the threaded holes to be in threaded connection with the fixed disk, the pressing plate is arranged above the fixed disk, the two sides of the pressing plate are respectively provided with a guide hole, the base is provided with a limiting threaded hole matched with the guide hole, one end of the limiting bolt is in threaded connection with the limiting nut, and the other end of the limiting bolt sequentially penetrates through the guide hole and the limiting threaded hole to be fixedly connected with the base, the lower end of the centering sleeve is connected with the base, the upper end of the centering sleeve sequentially penetrates through the through hole and the positioning through hole to be arranged in the impeller storage groove, the upper end of the centering sleeve is provided with a hub limiting groove, and the axle center of the centering sleeve, the axle center of the base and the axle center of the fixed disk are on the same axis.

2. The fast self-centering device for processing the open-type blade wheel vehicle as claimed in claim 1, wherein: the pneumatic centering device is characterized in that a driving moving mechanism is arranged between the centering sleeve and the base, the driving moving mechanism comprises a centering shaft, a cylinder sleeve, an air pipe and an air pump, the lower end of the centering sleeve is fixedly connected with the centering shaft, the centering shaft is arranged in the cylinder sleeve and is in sliding connection with the cylinder sleeve in a sealing mode, the cylinder sleeve is fixedly connected with the base, an air inlet hole is formed in the cylinder sleeve, one end of the air pipe is connected with the air inlet hole, and the other end of the air pipe is connected with the air pump.

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