CN102133651A

CN102133651A - Tailstock capable of displaying ejection force

Info

Publication number: CN102133651A
Application number: CN2011100930168A
Authority: CN
Inventors: 冯广超; 董建军; 赵宏安; 陈世猛; 黄付中; 马俊庆
Original assignee: Dalian Machine-Tool Group Co Ltd
Current assignee: Dalian Machine Tool (Digital) Co., Ltd.
Priority date: 2011-04-14
Filing date: 2011-04-14
Publication date: 2011-07-27
Anticipated expiration: 2031-04-14
Also published as: CN102133651B

Abstract

The invention discloses a tailstock capable of displaying ejection force, which comprises a tailstock body, an apex arranged in the front of the inner side of the tailstock body, and a lead screw arranged in the back of the inner side of the tailstock body and connected with the apex, wherein a thrust bearing is arranged between a stop table on the lead screw and a rear end plate on the tailstock body; a force bearing ring and a backing ring are sequentially arranged between the thrust bearing and the rear end plate; an oil hole for storing oil is processed on the rear end plate; a pressure gauge communicated with the oil hole is arranged on the rear end plate; the lateral surface of the rear end plate is provided with an oil groove communicated with the oil hole; and the lateral surface of the backing ring just plugs the oil groove. The ejection force of the apex can be transferred to the force bearing ring and the backing ring through the thrust bearing, the backing ring can be deformed after being stressed, the backing ring can press the oil in the oil hole during deformation so that the pointer of the pressure gauge deflects, and the magnitude of the ejection force can be learned at any time through reading of the pressure gauge. The force measurement and display functions of the tailstock provide convenience for an operator, the magnitude of the ejection force can be adjusted according to the specific conditions of workpieces, and the processing precision of the workpieces is ensured.

Description

The tailstock that can show bearing force

Technical field

The present invention relates to a kind of tailstock that is used on the Metal Cutting Machine Tool, particularly a kind of tailstock that shows bearing force.

Background technology

The tailstock of existing lathe comprises pedestal, sleeve is arranged in pedestal, by bearing main shaft is installed in the sleeve, be equipped with top in the endoporus front portion of main shaft, rear threads is connected with screw mandrel, between retaining platform and the pedestal end plate thrust bearing that bears axial force is being installed on the screw mandrel.The rear end of screw mandrel extend in the rear box of pedestal rear end and with driving mechanism and joins.Can drive screw mandrel by driving mechanism and rotate,, can hold workpiece during top stretching out because the rotating spindle of screw mandrel can move axially.The size of top bearing force can not be measured and show to the tailstock of this structure, and the operator can only control by rule of thumb, can't be according to the autotelic adjustment bearing force of the concrete condition of workpiece.

Summary of the invention

The purpose of this invention is to provide a kind of tailstock that can measure and show top bearing force size at any time, overcome the deficiencies in the prior art.

The tailstock that shows bearing force of the present invention, comprise pedestal, be installed in the pedestal interior front top, be installed in the pedestal inside back and the top screw mandrel that links to each other, be provided with thrust bearing between retaining platform on the screw mandrel and the end plate on the pedestal; Be provided with force bearing ring and gasket ring between described thrust bearing and the end plate successively, on end plate, be processed with the oilhole that stores fluid, the Pressure gauge that is connected with oilhole is installed on end plate, is provided with the oil groove that is connected with oilhole in the side of end plate, the side of gasket ring is the shutoff oil groove just.

The tailstock that shows bearing force of the present invention, wherein said force bearing ring is sleeved in the installing ring, be bolted to connection between installing ring and the end plate, be processed with the load annular groove in the side of end plate, the side of described installing ring and described gasket ring are positioned at the load annular groove.

The tailstock that shows bearing force of the present invention, top bearing force can pass to force bearing ring and gasket ring by thrust bearing, can deform after gasket ring is stressed, different according to its deflection of stressed size, when distortion, can pressurize to the fluid in the oilhole, manometric pointer is deflected, can understand the size of bearing force by manometric reading at any time.Dynamometry of this tailstock and Presentation Function provide convenience for the operator, can adjust the size of bearing force according to the concrete condition of workpiece, have guaranteed the machining accuracy of workpiece.

Description of drawings

Fig. 1 is the structural representation of the specific embodiment of the invention;

Fig. 2 is the enlarged diagram at H place shown in Figure 1;

Fig. 3 is an A-A sectional schematic diagram shown in Figure 1;

Fig. 4 is a K place enlarged diagram shown in Figure 3;

Fig. 5 is the structural representation of end plate.

The specific embodiment

As shown in Figure 1: 1 is the pedestal of tailstock, in the installed inside of pedestal 1 sleeve 5 is arranged, and sleeve 5 inboards are equipped with main shaft 4 by fore bearing 3, intermediate bearing 6, butterfly spring 7, rear bearing 8 etc.Have toply 2 at the inboard front end of main shaft 4, sleeve 5 rear ends are connected with nut seat 10, are fixed with screw in the nut seat 10 and screw mandrel 9 matches.The rear end of screw mandrel 9 extend in the rear box 14 that is connected with pedestal 1 rear end and screw mandrel driven wheel 15 is housed, and screw mandrel driven wheel 15 joins by transmission mechanism and the handwheel 16 that is located at rear box 14 outsides.Retaining platform 11 is arranged on screw mandrel 9, be provided with the thrust bearing 12 that bears axial force between the end plate 17 of retaining platform 11 and pedestal 1 rear end.Above-mentioned is the prior art part, no longer describes in detail.

Shown in Fig. 1,2,3,5: be set with force bearing ring 20 and gasket ring 18 between thrust bearing 12 and the end plate 17 on the screw mandrel 9 successively, on end plate 17, be processed with the oilhole 22 that stores fluid 19,17 upper side edge places are equipped with the Pressure gauge 13 that is connected with oilhole 22 by screwed pipe joint at end plate, are processed with the oil groove 23 that is connected with oilhole 22 at the leading flank of end plate 17.Wherein force bearing ring 20 is sleeved in the installing ring 21, be bolted to connection between installing ring 21 and the end plate 17, be processed with load annular groove 24 in the side of end plate 17, the side of installing ring 21 and gasket ring 18 just are positioned at load annular groove 24, and gasket ring 18 sides are shutoff oil groove 23 just.

As shown in Figure 4: the side edge at end plate 17 is processed with the hydraulic fluid port that is communicated with oilhole 22, this hydraulic fluid port oil nozzle 27 that has been threaded, the inner termination of oil nozzle 27 is provided with the endoporus that steel ball 26 and spring 25 are used for shutoff oil nozzle 27, and plug 28 has been threaded in the endoporus termination of oil nozzle 27.Unload plug 28, can be by pressure filling device oiling liquid 19 in oilhole 22, steel ball 26 and spring 25 have played the effect of check valve, i.e. fluid 19 only import but no export herein, fluid 19 also can be glycerine.

Rotate handwheel 16, can drive screw mandrel 9 by the transmission mechanism of rear box 14 inside rotates, thereby drive top moving axially, the top bearing force that holds workpiece can pass to force bearing ring 20 and gasket ring 18 by thrust bearing 12, can deform after gasket ring 18 is stressed, different according to its deflection of stressed size, when distortion, can pressurize to the fluid oilhole 22 in 19, the pointer of Pressure gauge 13 is deflected, can understand the size of top bearing force by the reading of Pressure gauge 13 at any time.

Claims

1. tailstock that can show bearing force, comprise pedestal (1), be installed in pedestal (1) interior front top (2), be installed in the screw mandrel (9) that links to each other with top (2) of pedestal (1) inside back, be provided with thrust bearing (12) between retaining platform (11) on the screw mandrel (9) and the end plate (17) on the pedestal (1); It is characterized in that: be provided with force bearing ring (20) and gasket ring (18) between described thrust bearing (12) and the end plate (17) successively, on end plate (17), be processed with the oilhole (22) that stores fluid (19), the Pressure gauge (13) that is connected with oilhole (22) is installed on end plate (17), be provided with the oil groove (23) that is connected with oilhole (22) in the side of end plate (17), the side of gasket ring (18) is shutoff oil groove (23) just.

2. ask the 1 described tailstock that shows the money bearing force according to right, it is characterized in that: described force bearing ring (20) is sleeved in the installing ring (21), be bolted to connection between installing ring (21) and the end plate (17), be processed with load annular groove (24) in the side of end plate (17), the side of described installing ring (21) and described gasket ring (18) are positioned at load annular groove (24).