CN2335746Y

CN2335746Y - Pneumatic quick vice

Info

Publication number: CN2335746Y
Application number: CN 98240997
Authority: CN
Inventors: 洪炷腾
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-29
Filing date: 1998-09-29
Publication date: 1999-09-01
Anticipated expiration: 2008-09-29

Abstract

The utility model relates to a pneumatic quick vice which is composed of a vice body, an angle fixed lower locking device and a doubling power device. The pneumatic device is arranged in the vice body. The jaw of the vice body is provided with processing workpieces, and an air pressure inlet in connected with the interior of the air pressure tube. The air pressure source of the air pressure inlet is a cover body. A buffer disc body is pushed by pushing a pneumatic piston and pressing a doubling power rod so that a screw rod is driven and pushed backwards. The jaw follow block of the angle fixed lower locking device can be contacted with a workpiece to clamp the workpiece. Simultaneously, the three points arranged on the fixed holding disc body of the screw bolt can also cancel out the mass of bearing force of the jaw. The precise vice of the utility model not only greatly improves the precision of the vice but also reduces production cost.

Description

Force-doubling type pneumatics quick vice

The utility model is the structural design of relevant vice, and referring to a kind of especially is power source with the air voltage source, and cooperates boosting device, to reach robustness, lowers fault rate, the force-doubling type pneumatics quick vice with great clamping force.

General traditional vice commonly used, be with the screw drive movable jaw, make it to produce displacement and obtain chucking power, because of the strength of its clamping limited, so be to develop a kind of hydraulic type vice in the hope of obtaining higher clamping strength, though this type of hydraulic type vice has the effect of high chucking power, but the same with traditional type screw rod vice have a slow-moving scarce fraud, can't be suitable for the high efficiency requirement of present stage automation, and the structure of hydraulic type often has the anxiety of leakage of oil, the user can't replenish oiling (because of oil cylinder is all the closed oil cylinder, and non-circulating type) voluntarily; Moreover, its movable jaw fulcrum of various vice commonly used, all be located at application of force side be the active force homonymy, this kind designs when holding workpiece, will inevitably cause the sweptback phenomenon of tiger, cause the accuracy of influence processing, so be not suitable for the process requirements of high efficiency, high precision comprehensive automation now.

In view of this, the design that the inventor digests for the research of precision vice for a long time according to the individual, and create a kind of is power source with the air voltage source, and cooperation boosting device, to reach robustness, lower fault rate, the force-doubling type pneumatics quick vice with great clamping force makes it more firm when the holder crop.

Main purpose of the present utility model is to be to provide a kind of force-doubling type pneumatics quick vice, its constructional device simple rigid, and precision height and fault rate are extremely low, and cost of manufacture is cheap.

Of the present utility model time a purpose is to be to provide a kind of force-doubling type pneumatics quick vice, is provided with boosting device in vice, so that produce bigger chucking power.

Another purpose of the present utility model is to be to provide a kind of force-doubling type pneumatics quick vice, because movable jaw is to adopt the angle to descend the locking device principle admittedly, and the strong point of movable jaw is arranged at the vice head end to improve the workpiece machining accuracy.

The purpose of this utility model is achieved by the following technical solution.

The utility model is power source with the air voltage source, and it mainly descends locking device and boosting device to be constituted by the angle of assembling in the vice body admittedly.

Locking device is descended at the angle admittedly, and it is fixed on the screw rod by the solid nut in angle, and assembly is in the movable jaw with dovetail face and tiger follow block, and the dovetail face is 41.8 ° of gradients, and fixing has a semi-round ball it on.

Boosting device is by lid, and pneumaticpiston, fixing disk body, buffering disk body, disc spring, screw rod and screw rod envelope body are formed.Lid is provided with the air pressure hand-hole that enters for air voltage source, and the lid endoporus is divided into two sections of internal diameter A and internal diameter B, and internal diameter A is less than internal diameter B, and is provided with internal thread outside internal diameter A port; Internal diameter A place device has the pneumaticpiston of axis hole, and the fixing disk body is screwed together in the lid.This fixing disk body centre bore periphery is provided with three embedding grooves, and all in abutting connection with the groove that caves in, the center is provided with screw to each embedding groove between the two adjacent embedding grooves, respectively inserts a times power bar of being made by high strength and high rigidity material in the embedding groove.Each will cushion the disk body spiral shell admittedly with the disc spring of being made up of taper washer and bolting element in the screw of fixing disk body, after screw rod is placed through buffering disk body, fixing disk body, pneumaticpiston, lid axis hole, O shape is encircled respectively, and fit is fastened in pneumaticpiston and the lid, then be sleeved on the screw rod end, and be fixed on the buffering disk body with screw rod envelope body.

When the utility model uses, be that air voltage source is entered lid air pressure hand-hole by air-pressure tube, air pressure promotes pneumaticpiston and moves, and makes the buffering disk body drive screw rod by a times power bar and moves, and make the angle descend the tiger follow block of locking device to abut against workpiece with its clamping admittedly.After the processing, remove pneumatic supply, under the effect of disc spring, screw rod oppositely moves rapidly, and workpiece is unclamped.

Fig. 1 is the three-dimensional exploded view of the utility model boosting device;

Fig. 2 is the combination section of the utility model boosting device;

Embodiment when Fig. 3 is subjected to the atmospheric pressure effect for the utility model boosting device moves schematic diagram;

Fig. 4 moves schematic diagram for the utility model applies to embodiment on the vice;

Fig. 5 moves schematic diagram for the utility model uses the embodiment of rocking handle;

Fig. 6 is the test number table;

Fig. 7 is vice active force of the present utility model and reaction force schematic diagram.

For further understanding, below lift a preferred embodiment now, and conjunction with figs. describes constitution content of the present utility model and the effect reached thereof as the back in detail to the utility model:

See also Figure 1 and Figure 2 and be three-dimensional exploded view and combination section for the utility model boosting device, boosting device 3 is made up of lid 31, pneumaticpiston 32, fixing disk body 33, buffering disk body 34, disc spring 35, screw rod 36 and screw rod envelope body 37.

Lid 31, it is the body of tool open-work, is provided with the air pressure hand-hole 311 that enters for air voltage source in its appropriate location, and its endoporus is divided into two sections of internal diameter A312 and internal diameter B314, wherein, internal diameter A312 is less than internal diameter B314, and is provided with internal thread 313 in internal diameter A312 port.

Pneumaticpiston 32, it is for being the scalariform disking body, and the center is provided with axis hole 321, and it is to be installed among the internal diameter A312 of lid 31, and is immobilizated in the lid 31 with O shape ring 323.

Fixing disk body 33, it is for being the hollow disk body, be provided with external screw thread 331 in its centre bore outer peripheral edges, and the center is provided with three embedding grooves 332, and the center in every adjacent two embedding grooves 332 is provided with a screw 333, and in embedding groove 332 belows in abutting connection with the groove 334 that caves in, respectively insert a times of power bar 335 in this embedding groove 332.This times power bar 335 has plane 336 and inclined-plane 337, and it is to be disposed in the lid 31, and is screwed together in external screw thread 331 in the internal thread 313 of lid 31.

Buffering disk body 34, it is the scalariform disk body, be provided with axis hole 341 in the center, and appropriate location is provided with three open-works 342 around it, and in the second order adjoiner for being inclined plane groove 343, and axis hole 341 contiguous places are provided with three open-works 344, it is to cover assembly in fixing disk body 33, a times power bar 335 is abutted against behind inclined plane groove 343, and pass the open-work 342 that cushions disk body 34 respectively and screw 333 places that are fixed at fixing disk body 33 with the disc spring 35 that three taper washers 351 and bolting element 352 are formed.

Screw rod 36, it is the externally threaded body of rod of tool, the end that Yu Qiwei establishes screw thread is arranged with the screw rod envelope body 37 with open-work 371, it is that screw rod is placed through buffering disk body 34 back and is fixed on its open-work 344, is fastened in respectively in the axis hole 321 and open-work of pneumaticpiston 32 and lid 31 with each O shape ring 322 and 315 again.

See also shown in Figure 3, enforcement illustration when being subjected to the atmospheric pressure effect for boosting device of the present utility model, the air pressure hand-hole 311 of lid 31 is provided with an air voltage source, the power of air voltage source is distributed on the plane of pneumaticpiston 32 and promotes pneumaticpiston 32, it is taken advantage of a situation push times power bar 335 that is disposed on the fixing disk body 33, because fixing dish bar 33 is to be fixed in the lid 31, and the bolting element 352 of disc spring 35 also is fixed on the fixing disk body 33, can allow times power bar 335 pushing buffering disk bodies 34 shrink back, taper washer 351 in the disc spring 35 is compressed, and drive screw rod 36 and shrink back, this is the running-active status of the utility model boosting device.

See also shown in Figure 4ly, move schematic diagram, boosting device 3 is installed on has the angle and descend admittedly in the vice body 1 of locking device 2 for the utility model applies to embodiment on the vice.It is to be fixed on the screw rod 36 by the solid nut 21 in angle that locking device 2 is descended at this angle admittedly, and assembly fixes on dovetail face 22 and is made up of a semi-round ball 23 in the movable jaw 24 of tool dovetail face 22 and tiger follow block 25.In the tiger of vice body 1, insert the workpiece 5 of desire processing, and in air-pressure tube 11, connect the air pressure hand-hole 311 that comes from lid 31 with pneumatics, promote pneumaticpiston 32 and pushing times power bar 335, make it promote buffering disk body 34, related lead-screw 36 is drawn back, and makes the angle descend the tiger follow block 25 of the movable jaw 24 of locking device 2 to abut against workpiece 5 admittedly.

See also shown in Figure 5; For using the embodiment of rocking handle, the utility model moves schematic diagram; Rocking handle 4 is placed on the end of screw rod 36 and makes it rotation; And then drive screw 36 rotations; And after in the tiger’s jaw of vice body 1, inserting the workpiece 5 of wish processing and leaving gap 6; This gap 6 needs to keep being slightly less than screw rod 36 makes screw rod 36 generations because of the running of boosting device 3 displacement; And in air-pressure tube 11, connect the air pressure hand-hole 311 that comes from lid 31 with pneumatics; Promote pneumaticpiston 32 and pushing times power bar 335; Make it promote buffering disk body 34; Related lead-screw 36 is drawn back; Make the angle admittedly descend the tiger’s jaw follow block 25 of the movable jaw 24 of locking device 2 to abut against workpiece 5, and when wish discharges, only need cut off air voltage source; And the restoring force of cooperation disc spring 35, impel the angle admittedly to descend the movable jaw 24 of locking device 2 fast workpiece 5 to be discharged.

Seeing also Figure 6 and Figure 7 is test number table and vice active force of the present utility model and reaction force schematic diagram, for preventing vice commonly used when the clamping work pieces, easily cause the phenomenon of workpiece come-up and influence the scarce fraud of machining accuracy, so on structural design, prevented and overcome it; General commonly used vice all is to impose active force and reaction force withstands and clamps, and the strong point of active force major part is at the movable jaw homonymy, so when clamping, easily cause the phenomenon of workpiece come-up, and the utility model designs fulcrum reaction force side (being the head side of vice), so when active force and reaction force clamping, vice body 1 is stressed and when producing distortion, almost can major part balance out, and the deflection of vice body 1 is minimized, the come-up (as shown in Figure 6) that in other words, also can stop workpiece; If impose the power of 3T on screw rod 36, via angle 3 holding capacity that also can offset the tiger major part on the fixing disk body 33 on the lock dress bar 36 down admittedly, made precision vice like this not only improves the precision of vice greatly, also reduces production cost.

In sum, the disappearance that the utility model force-doubling type pneumatics quick vice will be used always is fully forgone, and really the tool effect is promoted, and provide this technology use value, open and use before the application again, also non-ly have the knack of this operator and can finish easily, so the proposition patent application.

Claims

1, a kind of force-doubling type pneumatics quick vice is to be power source with the air voltage source, and it is formed structure and comprises:

Vice body for the combination assembling; Locking device is descended at the angle admittedly, and it is fixed on the screw rod by the solid nut in angle, and assembly is in the movable jaw with dovetail face and tiger follow block, and fixing on the dovetail face has a semi-round ball, and it is that assembled configuration is in above-mentioned vice body;

It is characterized in that: the boosting device of assembled configuration in above-mentioned vice body is by lid, pneumaticpiston, the fixing disk body, the buffering disk body, disc spring, screw rod envelope body, screw rod is formed, lid is provided with the air pressure hand-hole that enters for air voltage source, and its endoporus is divided into two sections of internal diameter A and internal diameter B, and be provided with internal thread in internal diameter A place, the pneumaticpiston that has axis hole in internal diameter A place device, and the fixing disk body screwed togather in the lid, this fixing disk body centre bore periphery is provided with the embedding groove, and in abutting connection with the groove that caves in, and the center in two adjacent embedding grooves is provided with screw, respectively inserts one times of power bar in the embedding groove; And each will cushion the disk body spiral shell admittedly with the disc spring of being made up of taper washer and bolting element in the screw of fixing disk body, after screw rod is placed through above-mentioned buffering disk body, O shape ring is fastened in respectively in the above-mentioned pneumaticpiston and lid, then be sleeved on the screw rod end, and be fixed on the buffering disk body with screw rod envelope body.

2, force-doubling type pneumatics quick vice as claimed in claim 1, the internal diameter A of lid that it is characterized in that described boosting device is less than internal diameter B.

3, force-doubling type pneumatics quick vice as claimed in claim 1 is characterized in that a times power bar is to be made by the material of high strength and high rigidity in the described boosting device.

4, force-doubling type pneumatics quick vice as claimed in claim 1 is characterized in that described angle descends the dovetail face of locking device for being 41.8 ° admittedly.

5, force-doubling type pneumatics quick vice as claimed in claim 1 is characterized in that described boosting device buffering disk body second order adjoiner is the leaf inclined plane groove.

6, force-doubling type pneumatics quick vice as claimed in claim 1 is characterized in that being provided with three embedding grooves in the described boosting device fixing disk body.