Floating support device for machine tooling
Technical field
The invention belongs to field of machining, specifically a kind of floating support device for machine tooling.
Background technology
At present in machine tooling process, the location of workpiece is mainly contained to following two kinds of modes:
The first be take the pneumatic power positioner that the hydraulic location device that hydraulic oil is medium or the compressed air of take are medium, this class positioner support force is definite value, in actual process, because varying in size of workpiece causes the support force that can bear also with regard to difference, therefore when workpiece stiffness is less than support force, can cause the distortion of workpiece, thereby can cause the Product Precision processing to reduce;
It two is rigid support, and namely the strong point immobilizes, and as adopted this supporting way when the machining blanks product, because location basal plane is inconsistent, makes the rigid strong point and workpiece generation gap or interference, thereby does not have supporting role.
The locate modes such as visible, that at present in machinery industry, workpiece location adopts is pneumatic, hydraulic pressure support or rigid support, yielding, the vibrations of workpiece in process, thus affect product processing quality.
The Chinese utility model patent that is 2009201010679 as the patent No. discloses " a kind of Novel auxiliary supporting device of pneumatic numerical control fixture ", just belong to a kind of pneumatic power positioner, if during for the lower workpiece of the rigidity such as processing thin-walled or aluminum products, easily produce distortion; And this device is only suitable for the product that processing has certain precision, is not suitable for the processing of the inconsistent roughing of supporting surface and blank product.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of floating support device for machine tooling, utilizes the elastic force of spring to carry out flexible support to workpiece, and utilizes self-locking angle to realize the machining of the larger load of carrying, and pressure is easy to control and stable; Owing to all having top lift in whole working cycles, so possess, overcome the gap producing because of processing vibrations; Self-locking angle has larger distance from minimum point to peak, for blank roughing, to accurately machined product, can guarantee the machining accuracy of workpiece, environmental protection and energy saving.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
For a floating support device for machine tooling, comprise housing with cross four-way cavity, jacking apparatus and by jacking body, wherein:
1. by jacking body, be T-shaped push rod, its vertical part is arranged in vertical endoporus and the two matched in clearance of housing, and the middle part of the vertical part of push rod is with the through hole extending along left and right directions;
2. jacking apparatus comprises drift and upper support;
Drift be positioned at housing horizontal direction cavity and simultaneously left and right to the through hole through push rod, can move left and right and with the horizontal endoporus matched in clearance of housing, its top corresponding to the endoporus place, top of housing with inclined-plane;
Upper support be located in through hole and its top left right limit in the top of housing endoporus, bottom falls within on inclined-plane, with the rise and fall that move left and right of drift, upper support shoulder contacts with through hole upper wall.
As a kind of optimization of the present invention,
1. described jacking apparatus also comprises lower support, and the position relationship between lower support, drift and upper support is for arranging from bottom to top;
The ramp of drift is decided to be main inclined plane, and its structure comprises and being coupled to each other in the Yu Chongxie inclined-plane, slightly-inclined inclined-plane of one two parts, and angle of inclination with respect to the horizontal plane, slightly-inclined inclined-plane is jacking self-locking angle, and the size at angle of inclination, heavy inclined-plane determines top lifting height;
The top of upper support is positioned at the top endoporus of housing, the two interference fit, the bottom of upper support freely falls within the main inclined plane structure of drift, its bottom surface is the secondary ramp structure suitable with the main inclined plane structure of drift, described secondary ramp structure comprises Yu Chongxie inclined-plane, the slightly-inclined inclined-plane two parts that are connected in one, and this two-part left and right position relationship is identical in contrast to corresponding two-part left and right position relationship in main inclined plane structure and angle of inclination;
The bottom of drift is corresponding to the endoporus place, bottom of housing with the recess of depression upwards, and lower support is positioned at recess and through hole simultaneously, and its bottom is fixed on and is provided with in endoporus push rod bottom, vertically setting through jackscrew.
As further optimization of the present invention, jacking self-locking angle is 10 °, and jacking angle is 30 °.
As another kind of optimization of the present invention, the described floating support device for machine tooling also comprises plug screw, Compress Spring, pneumatic pushing block, end cap, the pneumatic joint of the horizontal endoporus of being located at housing, wherein:
1. plug screw, Compress Spring are located in the horizontal endoporus of housing, are positioned at drift left side, and they set gradually to center from the end of the horizontal endoporus of housing;
Plug screw is located at the end of the horizontal endoporus of housing, with housing thread connection;
The horizontal endoporus matched in clearance of Compress Spring and housing;
2. pneumatic pushing block, end cap, pneumatic joint are located at successively the horizontal endoporus of housing and are positioned at the outside at drift tip;
Interporal lacuna in the level of pneumatic pushing block and housing, be slidably matched;
End cap is fixed on the end of the horizontal endoporus of housing through bolt, the center is provided with passage, and described pneumatic joint is in passage place and end cap thread connection.
As the restriction to Compress Spring, described Compress Spring is located at the left end of drift, is provided with Compress Spring detent, and internal diameter and the Compress Spring of described groove are suitable.
As another kind, limit, described pneumatic pushing block comprises that thread connection is in piston and the slide block of one, and piston is near end cap, and slide block is near drift.
Operation principle of the present invention is as follows: drift forces generation horizontal displacement by the elastic pressure of Compress Spring, by main inclined plane on drift, upper support and push rod are upwards ejected, the top of push rod is contacted with workpiece to be machined, drift and upper support slide into slightly-inclined inclined-plane (self-locking angle) simultaneously, realize jacking self-locking, complete the object of supporting workpiece; When workpiece is processed complete after, pneumatic joint outside end cap is by the control of pneumatic operated valve, make gassy in case side chamber, when this side chamber internal gas pressure is greater than the elastic pressure of spring, piston and slide block are passed to center by air pressure, force drift to reset, drive lower support and push rod to move down simultaneously, complete one action circulation.
Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, obtained technological progress is: the present invention utilizes the elastic force of spring to realize the flexible support to workpiece, and utilizes self-locking angle to realize the machining of the larger load of carrying, between each parts, keeps dynamic equilibrium, thereby guarantee the machining accuracy of workpiece, improving product quality, this product belongs to pure mechanical organ and drives, and has the feature of environmental protection and energy saving, simple in structure, reliable operation.
The present invention is applicable to various machine tooling parts to carry out supplemental support location.
The present invention is described in further detail below in conjunction with Figure of description and specific embodiment.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention;
Fig. 2 and Fig. 3 are respectively sectional side elevation and the top views of drift 7 in the embodiment of the present invention.
In figure: 1. plug screw, 2. Compress Spring, 3. housing, 4. push rod, 5. upper support, 6. lower support, 7. drift, 8. piston, 9. jackscrew, 10. slide block, 11. end caps, 12. pneumatic joints.
The specific embodiment
Embodiment
Figure 1 shows that a kind of floating support device for machine tooling, comprise housing 3 with cross four-way cavity, jacking apparatus and by jacking body.Wherein:
1. by jacking body, be T-shaped push rod 4, its vertical part is arranged in vertical endoporus and the two matched in clearance of housing 3.The middle part of the vertical part of push rod 4 is with the through hole extending along left and right directions.
2. jacking apparatus comprises drift 7 and upper support 5, lower support 6.The position relationship that lower support 6, drift 7 and upper support are 5 is to arrange from bottom to top.
The structure of drift 7 is with reference to figure 2 and Fig. 3, it be positioned at the cavity of housing 3 and simultaneously left and right to the through hole through push rod 4, with the horizontal endoporus matched in clearance of housing.Its top corresponding to the endoporus place, top of housing with inclined-plane, if this inclined-plane is main inclined plane, comprise left part slightly-inclined inclined-plane and the heavy inclined-plane of right part two parts of being coupled to each other in one, angle of inclination with respect to the horizontal plane, slightly-inclined inclined-plane is jacking self-locking angle, is 10 °; The corresponding angle of inclination on heavy inclined-plane is jacking angle, is 30 °.
The top of upper support 5 is positioned at the top endoporus of housing, the two interference fit.The bottom of upper support 5 freely falls within the main inclined plane structure of drift 7, its bottom surface is the secondary ramp structure suitable with the main inclined plane structure of drift 7, secondary ramp structure comprises right part slightly-inclined inclined-plane and the heavy inclined-plane of the left part two parts that are connected in one, and this two-part angle of inclination is respectively 10 °, 30 °.
The bottom of drift 7 is corresponding to the endoporus place, bottom of housing with the recess of depression upwards, and lower support 6 is positioned at recess and through hole simultaneously, and its bottom is fixed on and is located in endoporus push rod 4 bottoms, vertically setting through jackscrew 9.
Upper support 5 be located in through hole and its top left right limit in the top of housing endoporus, bottom falls within on main inclined plane, with the rise and fall that move left and right of drift 7, the shoulder of upper support 5 contacts with through hole upper wall.
3. in the horizontal endoporus left part of housing 3, be also provided with plug screw 1, Compress Spring 2.
Plug screw 1, Compress Spring 2 are located at the left part of the horizontal endoporus of housing, and they set gradually to center from the end of the horizontal endoporus of housing.
Plug screw 1 is located at the end of the horizontal endoporus of housing, with housing 3 thread connection.
The horizontal endoporus matched in clearance of Compress Spring 2 and housing.Compress Spring 2 is positioned at the left end of drift 7, and is provided with Compress Spring detent, and the internal diameter of detent and Compress Spring 2 are suitable.
4. in the horizontal endoporus right part of housing 3, be also provided with from left to right: slide block 10, piston 8, end cap 11, pneumatic joint 12.
Piston 8 is with slide block 10 thread connection in being integrally formed pneumatic pushing block, and piston 8 is near end cap 11, and slide block 10 is near drift 7.Interporal lacuna in the level of pneumatic pushing block and housing, be slidably matched.
End cap 11 is fixed on the end of the horizontal endoporus of housing through bolt, the center is provided with passage, and pneumatic joint 12 is in passage place and end cap 11 thread connection.
The course of work of the present embodiment is as follows:
Drift 7 produces horizontal displacement by the elastic pressure of Compress Spring 2, by main inclined plane on drift 7, upper support 5 and push rod 4 are upwards ejected, the top of push rod 4 is contacted with workpiece to be machined, drift 7 slides into slightly-inclined inclined-plane (self-locking angle) with upper support 5 simultaneously, realize jacking self-locking, complete the object of supporting workpiece;
When workpiece is processed complete after, pneumatic joint 12 outside end cap 11 is by the control of pneumatic operated valve, make the interior gassy of right-side cavity of housing 3, when this side chamber internal gas pressure is greater than the elastic pressure of Compress Spring 2, piston 8 is pushed to left side with slide block 10 by air pressure, force drift 7 to reset, drive lower support 6 and push rod 4 to move down simultaneously, complete one action circulation.