CN102000986A

CN102000986A - Clamping device of large-scale vertical lathe rotating table

Info

Publication number: CN102000986A
Application number: CN2010105324047A
Authority: CN
Inventors: 梁勇; 周华丽; 赵林涛; 赵军
Original assignee: Weihai Huadong Automation Co Ltd
Current assignee: Weihai Huadong Automation Co Ltd
Priority date: 2010-11-05
Filing date: 2010-11-05
Publication date: 2011-04-06
Anticipated expiration: 2030-11-05
Also published as: CN102000986B

Abstract

The invention relates to a clamping device of a large-scale vertical lathe rotating table, belonging to the technical field of machine tool. The clamping device comprises a mechanism body, an upper-and-lower rotating axis, an upper-and-lower scissor body, an upper-and-lower piston body, an upper-and-lower ball surface gasket component, a spring, an oil cylinder, and the like. When the rotating table clamps, the hydraulic pressure oil with certain pressure is pumped from a hydraulic pressure oil inlet; the tail end of the upper-and-lower scissor body is lifted through the upper-and-lower piston body and the upper-and-lower ball surface gasket component so that the head part of the scissor body clamps the rotating part of the rotating table. The clamping mechanism is convenient to produce; the force can be amplified so that the clamping is firmer and more stable; and the clamping mechanism is arranged outside the machine tool, thereby being convenient to assemble, adjust and maintain.

Description

Large-scale vertical lathe turntable clamping device

Technical field

The present invention relates to lathe and use the turntable field, especially a kind of large-scale vertical lathe turntable clamping device.

Background technology

As everyone knows, at present, the large-scale vertical lathe turntable clamps and generally all adopts built-in oil cylinder, strains by T type annular groove and finishes.Because large-scale vertical lathe turntable mesa dimensions is very big, process very difficulty of annular T type groove, in case and processing dimension deviation is arranged, when turntable turn round, the T type top on the oil cylinder was easy to and T type groove produces friction, will produce major accident in the time of seriously.Clamping device is in the inside of turntable in addition, and Installation and Debugging are difficulty relatively, in case break down, maintenance must be pulled down table top, has brought great inconvenience.

Summary of the invention

In order to overcome the deficiencies in the prior art, the invention provides a kind of large-scale vertical lathe turntable clamping device, this device is not only made easy, and it is tightly effective to stop, and in the turntable outside, the assembling maintenance is very convenient.

The technical solution adopted for the present invention to solve the technical problems is: a kind of large-scale vertical lathe turntable clamping device, be provided with machine body, it is characterized in that being fixed with above the mechanism body lower rotary shaft and go up rotating shaft, last scissor body and lower scissors body can rotate around last rotating shaft and lower rotary shaft respectively, be combined with backstay on the machine body, the end of backstay withstands on the head outside of scissor body, in last scissor body and lower scissors body afterbody, be provided with cylinder body, there is the upper piston body cylinder body inside, contact with last ball gasket assembly by spacer, a last ball gasket assembly part wherein is fixed on the tail end of scissor body, the inner lower piston body in addition of cylinder body, maintain an equal level with the upper end of cylinder cap, the lower end of cylinder cap contacts with following ball gasket assembly, the wherein a part of tail end that is fixed on the lower scissors body of following ball gasket assembly, stay bolt passes spring from top to bottom successively, last scissor body, last ball gasket assembly, the upper piston body, the lower piston body, cylinder cap, following ball gasket assembly, the lower scissors body also connects into as a whole, last sense switch is fixed on the mechanism body, the contact contact of last sense switch is at last scissor body tail end, following sense switch is fixed on the machine body, and the contact contact of following sense switch is at lower scissors body tail end.

The invention has the beneficial effects as follows that clamp mechanism is easily manufactured, and have the amplification of power, make clamping more firm and firm, clamp mechanism is in the lathe outside, and assembling is adjusted easy to maintenance.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a sectional structural map of the present invention.

Among the figure: 1. backstay, 2. go up scissor body, 3. go up sense switch, 4. spring, 5. go up the ball gasket assembly, 6. the upper piston body is 7. gone up oil-in, 8. the lower piston body, 9. descend oil-in, 10. cylinder body, 11. cylinder caps, 12. following ball gasket assembly, 13. stay bolts, 14. lower scissors bodies, 15. following sense switch, 16. machine bodies, 17. lower rotary shafts, 18. last rotating shaft, 19. mechanism body, 20. turntable rotating parts.

The specific embodiment

In Fig. 1, the present invention is provided with mechanism body 19, be fixed with lower rotary shaft 17 above and go up rotating shaft 18, last scissor body 2 and lower scissors body 14 can rotate around last rotating shaft 18 lower rotary shafts 17 respectively, be combined with backstay 1 on the machine body 16, the end of backstay 1 withstands on the head outside of scissor body 2, and the head of last scissor body 2 and lower scissors body 14 effect and turntable rotating part 20 owing to spring 4 when free state leaves a small distance, and 1 of backstay is the size that is used to adjust this distance.Be provided with cylinder body 10 in last scissor body 2 and lower scissors body 14 afterbodys, there is upper piston body 6 cylinder body 10 inside, contact with last ball gasket assembly 5 by spacer, and last ball gasket assembly 5 part wherein is fixed on the tail end of scissor body 2.Cylinder body 10 inner lower piston bodies 8 in addition, fair with the upper end of cylinder cap 11, the lower end of cylinder cap 11 contacts with following ball gasket assembly 12, the wherein a part of tail end that is fixed on lower scissors body 14 of following ball gasket assembly 12.Stay bolt 13 passes spring 4, last scissor body 2 from top to bottom successively, goes up ball gasket assembly 5, upper piston body 6, lower piston body 8, cylinder cap 11, time ball gasket assembly 12, lower scissors body 14, and connects into as a whole.Last sense switch 3 is fixed on the mechanism body 19, and the contact of last sense switch 3 contacts at last scissor body 2 tail ends.Following sense switch 15 is fixed on the machine body 16, and the contact of following sense switch 15 contacts at lower scissors body 14 tail ends.When turntable rotating part 20 finishes to need to clamp at calibration, the hydraulic oil that feeds certain pressure respectively by last oil-in 7 and 8 times oil-ins 9 of lower piston body of upper piston body 6, because the promotion of fluid, make upper piston body 6 drive to go up ball gasket assembly 12 will go up the tail end of the scissor body 2 certain distance of jack-up that makes progress, lower piston body 8 certain distance that and then moves up in addition, this at present the fluid that enters of oil-in 9 promote cylinder cap 11 and drive cylinder bodies 10, following ball gasket assembly 12 is with the certain distance of the downward jack-up of the tail end of lower scissors body 14, because scissor body two ends arm of force difference, the clamping force of head is owing to leverage is amplified, thereby the head of scissor body clamps turntable rotating part 20 firmly.Last sense switch 3 reaches down, and the contact of sense switch 15 triggers owing to opening of scissor body afterbody, whether therefore can detect the scissor body clamp mechanism working properly, and ball gasket assembly 12 increased lifting surface area under upward ball gasket assembly 5 reached, and had reduced the risk that part destroys.

Claims

1. large-scale vertical lathe turntable clamping device, be provided with mechanism body, it is characterized in that being fixed with above the mechanism body lower rotary shaft and go up rotating shaft, last scissor body and lower scissors body can rotate around last rotating shaft and lower rotary shaft respectively, be combined with backstay on the machine body, the end of backstay withstands on the head outside of scissor body, in last scissor body and lower scissors body afterbody, be provided with cylinder body, there is the upper piston body cylinder body inside, contact with last ball gasket assembly by spacer, a last ball gasket assembly part wherein is fixed on the tail end of scissor body, the inner lower piston body in addition of cylinder body, maintain an equal level with the upper end of cylinder cap, the lower end of cylinder cap contacts with following ball gasket assembly, the wherein a part of tail end that is fixed on the lower scissors body of following ball gasket assembly, stay bolt passes spring from top to bottom successively, last scissor body, last ball gasket assembly, the upper piston body, the lower piston body, cylinder cap, following ball gasket assembly, the lower scissors body also connects into as a whole, last sense switch is fixed on the mechanism body, the contact contact of last sense switch is at last scissor body tail end, following sense switch is fixed on the machine body, and the contact contact of following sense switch is at lower scissors body tail end.