CN2425736Y - Improved clamp for centering machine - Google Patents

Abstract

The utility model relates to an improved clamping chuck for centering cutting machines, which is a structure design of a clamping chuck performing the operation of clamping in longitudinal and transverse sequences through air pressure. The utility model is characterized in that an upper and a lower air chambers are arranged in the clamping chuck; jaws are respectively controlled to perform longitudinal and transverse slippages guided by chutes at the tips of shaft levers which are inserted mutually; the bottom of one of the shaft levers is connected with piston plate on the upper air chamber, and the bottom of the other shaft lever is connected with piston plate on the lower air chamber; consequently, high pressure air can be guided into the upper and the lower air chambers from one side, namely, sequential pressurizing can be performed according to the length of tunnels of the upper and the lower air chambers so as to match with the slant chutes on the tips of the shaft levers to guide; the jaws can be guided to perform clamping operation toward the center, which is convenient for irregular moulding operation. The utility model can also perform centralized positioning clamping operation simply.

Description

Improved central cutting machine chuck

The utility model relates to a kind of central cutting machine chuck.

The chuck that uses on the general machining machine and tool, mostly be the design of three-pawl type, mainly get its clamping that can conveniently do positive axle center operation, promptly with the operator, can be simple and easy by a control point, do the operation that synchronously inside clamping lock is put, but this kind design is when running into irregular piece-holder use, because the workpiece profile is irregular, the center that makes whole folder treat aligns work, just become one epochmakingly, otherwise just become puzzlement on the whole operation, especially with the chuck tool of central cutting machine special use, because traditional its lock control point of three-pawl type anchor clamps is at the side of chuck card, difficult lock is put operation.So inventor of the present utility model needs based on the convenience of reality use and the lock control of clamping.Improvement design goes out the anchor clamps of four-jaw type in addition, and its lock put a little to be set as can be directly do operable lock and put by work top top one side, [central cutting machine chuck] a case as No. the 96248906.9th, the application of approved, its processing of directly significantly simplifying whole central cutting facility is used, but because these clip designs, mainly making things convenient for the actual tool lock to put the needs of operation, the improvement of the practicality of being done, but on the process operation today, owing to may do the processing simultaneously of many of cotypes, so when operation is arranged in actual processing, how controlling of whole clamping reached and more simplify efficient and certain clamping, and make the center position that is folded in processing chuck tool that workpiece can be easy, to the normalized not to the utmost design of processing raw material, still have the necessity that is further improved in fact.

Work aligns being difficult for of axle center and effort when now using clamping with the chuck tool, the shortcomings such as waste of the machining accuracy that impacts and material cost, developing a kind of central cutting machine of the present utility model improves with the structure that connects of chuck, clamping by coaxial-type, cooperate the clamping of the order up and down design of different axostylus axostyles, make workpiece be able to the clamping of simple and easy and voltage stabilizing, reach constant and easy once the laborsaving operation in clamping axle center, effectively overcome the inconvenience that existing chuck is controlled.

Main purpose of the present utility model is: provide a kind of reach the piece-holder center simple and easy align and rapid operation convenient, guarantee the improved central cutting machine chuck that workpiece can clamping off-centre.

Above-mentioned purpose of the present utility model is realized by following technical scheme.

A kind of improved central cutting machine chuck includes the assemblies such as jaw that a chuck body and assembling holding workpiece thereof are used; It is characterized in that: body is set as two halves phase interlocking dress up and down, wherein upper body is assembled clip claw assembly and is connected external axle rod and the central shaft of control with mutual insert group, cooperation gives frame with a base plate and seals admittedly, and the body stage casing is separated into dividing plate down, lower chamber, establish respectively in the 2 air chambers and adorn a piston plate, do the locking assembling with external axle rod and central shaft respectively, and the pore road that sets up connection separately in the upper limb and the bottom of 2 air chambers, for input direction via the control pressure-air, the control piston plate is done slippage up and down, control external axle rod and central shaft lifting to reach to connect, can do relative order and fold up and control purpose to reach two relative jaws.

Except that the special card of above-mentioned necessary technology, in specific implementation process, also can replenish following technology contents:

External axle rod and central shaft top branch are set as the inclined plane, on this inclined-plane, more are provided with the relative chute for clip claw assembly assembling usefulness;

Be assembled into one with tightening latch respectively around the body up and down.

Advantage of the present utility model is:

A kind of improved central cutting machine chuck provided by the utility model, mainly do controlling of inserting and putting with air pressure, cooperate same airflow line,, make pressure-air be able in proper order last lower chamber be done to exert pressure reach easy vertical and horizontal order clamping according to the difference of last lower chamber.With same pressure-air, do the clamping of four melon anchor clamps and control, make via last lower chamber to drive respectively, reach the piece-holder center simple and easy align and rapid operation convenient, and guarantee certain lifting of workpiece processing precise degree; And, can receive that more the order clamping aligns the effect in axle center automatically via the vertical and horizontal control of folder respectively operation, guarantee that workpiece does not have because the eccentric processing waste material that produces of clamping increases, reaches a time purpose that cuts down finished cost relatively.

For further understanding structure of the present utility model, feature and practical purpose thereof below sincerely are described with reference to the accompanying drawings as the back with an embodiment:

Description of drawings:

Fig. 1 is a chuck structure assembling exploded view of the present utility model.

Fig. 2 is an assembling outward appearance reference diagram of the present utility model.

Fig. 3 is that the utility model chuck supercharging folder is treated the operation planar schematic diagram.

Action sequence diagram when Fig. 4 is the utility model chuck pressurization clamping.

Fig. 5 is the utility model chuck air pressurized input duct schematic diagram.

Fig. 6 is the utility model chuck release loosening clamping floor map.

Fig. 7 is the action schematic diagram that the utility model jaw loosens clamping.

Fig. 8 is the utility model chuck release air input duct schematic diagram.

Improved central cutting machine chuck of the present utility model, its total design, please cooperate Fig. 1-shown in Figure 5, the design that whole chuck body 10 is square-shaped, it mainly is convenient to do on the workbench of central cutting facility to arrange use, emphasis with whole design improved then is body 10 is set as two halves phase interlocking group up and down, wherein the guide groove 12 that stays for the stand-by jaw 11 slip usefulness of folder is established on the surface of the upper body 101 of the first half, need according to using, clamping azimuth design for crosswise or special use, and wear group one by the axostylus axostyle group of external axle rod 13 with central shaft 14 mutual insert groups in central authorities, stay the conical surface of inclination respectively according to the top of external axle rod 13 and central shaft 14, and on this conical surface, set up separately for jaw 11 chute 15 of guiding clampings displacement of planting, make the jaw 11 can be by the flexible operation of axostylus axostyle group, be to the clamping of concentric or loosen the slippage start and reach, the root edge cooperation of the central shaft hole 16 of upper body 101 gives packing with a base plate 17, make the frame support that forms axostylus axostyle group stage casing, and can form the top closure of folding after organizing with following body 102, and body 102 stage casings are separated into upper chamber 20 partly with dividing plate 18 down, 2 air chambers is connected with hole slot 21 respectively, the connection pore group of A group as shown in Figure 5, and the air of receiving body 10 outsides divides distributing valve tool 22 blowhole mouth on one side, the inside of air chamber in mainly gases at high pressure being guided, lower edge in each air chamber then cooperates another group passage 23, the pore group of B group as shown in Figure 8, the use of oppositely exerting pressure during for pressure release, make the clamping operation of loosening jaw 11, and establish respectively a piston plate 25 is housed in the inside of upper chamber 20 and lower chamber 24,251, respectively with central shaft 14 locking that is connected with external axle rod 13, make the two bar tools can be according to the piston plate in the air chamber 25,251 pressurized situation, and the interlock starts such as slippage clamping of controlling vertical and horizontal jaw 11 are controlled respectively, and whole peritreme or piston plate 25,251 and the axostylus axostyle face between sealing then need do the auxiliary of sealed against leakage with axle envelope 26, and on, following body 101,102 tightening latch 19 lock roped parties that cooperate periphery respectively to hold the place, angle become a complete chuck tool.

The operation that the clamping of whole chuck upper gripper jaw 11 is loosened or the like connects control, cooperation Fig. 3-shown in Figure 5, mainly control by the air slide valve tool 22 of a side, during as the clamping work pieces operation, pressure-air is imported by A runner one side, pressure-air is flow into rapidly, lower chamber 20,24, wherein the air-flow hole slot 21 of upper chamber 20 can directly be subjected to the pressure of pressure-air than weak point, the piston plate 25 that can in advance compress immediately in the upper chamber 20 is done the motion that presses down, and make external axle rod 13 move down thereupon, make the horizontal jaw 11 of both sides press folder to the center immediately, and when to be obstructed, then the piston plate 251 of lower chamber 24 will also move down thereupon, simultaneously central shaft 14 is done downward slippage, the vertical jaw 11 that then synchronously the top is connected control is able to do vertical clamping to the axle center, cooperate opposite side to orthogonal jaw 11 orders press the folder design, when making the clamping operation of workpiece, be able to certain with workpiece clamp centering position, be particularly useful for the clamping operation of general irregular workpiece, and the input of cooperation pressure-air, can really processing work be held on the fixed position, not have the doubt that gets loose.

The removal of processing back workpiece, see also Fig. 6-shown in Figure 8, promptly flow into the switching of gas by the branch of air slide valve tool 22, the tangential opposite side of pressure-air can be done the operation of input, and the B opening group of cooperation distributing valve tool 22 another air inlets, make pressure-air switch below one side that is input to air chamber, even pressure-air upwards raises synchronously, lower chamber 20, piston plate 25 in 24,251, make piston plate 25, move on 251, slippage on centre of motion axostylus axostyle 14 and the external axle rod 13, and the jaw 11 that makes chuck tool end face is able to the guiding that is tilted to along bar tool top chute 15, form the slippage of opening of expansion, and reach the operation that jaw 11 unclamps, can easily workpiece be taken off, when once more workpiece being presented to jaw 11 central, can just can reach the operation that clamps once more via the air inlet input direction that switches air slide valve tool 22; And with the operation of these pneumatics jaw 11 clampings, it is on the order that the pressurization folder is treated, synchronous clamping by two relative jaws 11 reaches, operation is changeed in pressing from both sides in regular turn naturally of lower chamber 24, make the inserting and putting of workpiece, can receive putting and clamping of real shaft core position, especially be fit to the use that inserts and puts of irregular workpiece, can make the whole center technology of aligning drop to minimum, and more can suitably reduce because insert and put beat, the waste of the rapidoprint that produces and the increase of cost, can receive economical and practical processing purpose, it really is a brand-new and effective practicality structural improvement design.

In sum, central cutting machine of the present utility model is improved with the structure that connects of chuck, it is controlled by easy order clamping, make two relative jaws be done the holding workpiece location of corresponding, and, make the clamping of whole work-piece can receive that simple and easy and piece-holder locatees easy practical effect according to the forward and reverse input control of pressure-air.

Claims (3)

1, a kind of improved central cutting machine chuck includes the assemblies such as jaw that a chuck body and assembling holding workpiece thereof are used; It is characterized in that: this body is set as two halves phase interlocking dress up and down, and wherein upper body is assembled with clip claw assembly and connects external axle rod and the central shaft of control with mutual insert group, cooperates a base plate to give frame and seals admittedly; And the body stage casing is separated into upper and lower air chamber with dividing plate down, establishes respectively in the 2 air chambers and adorns a piston plate, does the locking assembling with external axle rod and central shaft respectively, and the pore road that sets up connection separately in the upper limb and the bottom of 2 air chambers.

2, improved central cutting machine chuck as claimed in claim 1, it is characterized in that: external axle rod and central shaft top branch are set as the inclined plane, on this inclined-plane, more are provided with the relative chute for clip claw assembly assembling usefulness.

3, improved central cutting machine chuck as claimed in claim 1 is characterized in that: be assembled into one with tightening latch respectively around the body up and down.

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