CN-122007940-A - Numerical control milling machine machining fixture for thin-wall easily-deformed part

CN122007940ACN 122007940 ACN122007940 ACN 122007940ACN-122007940-A

Abstract

The invention discloses a numerical control milling machine machining fixture for thin-wall easily-deformed parts, which relates to the technical field of milling machine machining fixtures and comprises a base plate, wherein a plurality of anchoring mounting holes are formed in the upper surface of the base plate, a central table body is arranged at the center of the base plate, a clamping placing table is arranged on the upper surface of the central table body, a clamping mechanism is further arranged on the upper surface of the base plate, the clamping mechanism comprises a clamping plate assembly, the clamping plate assembly comprises four lifting motors, the four lifting motors are all arranged on the upper surface of the base plate, a lifting sliding frame is arranged on the upper surface of the lifting motor, a driving motor is arranged at one end of the lifting sliding frame, and a meshing screw is arranged at the inner center of the lifting sliding frame.

Inventors

GAI LIWU
ZHANG XIAOMAN
SUN DAN
CHEN QI
CHEN XIANGLIN
LIU XU

Assignees

苏州职业技术大学(苏州开放大学)

Dates

Publication Date: 20260512
Application Date: 20260407

Claims (8)

1. A numerically controlled fraise machine adds clamping apparatus for thin wall easy shape part, characterized by comprising: the base plate, a plurality of anchor mounting holes are formed in the upper surface of the base plate, a center table body is arranged in the center of the base plate, a clamping placing table is arranged on the upper surface of the center table body, a clamping mechanism is further arranged on the upper surface of the base plate, and the clamping mechanism comprises a clamping plate assembly; The clamping plate assembly comprises four lifting motors, the four lifting motors are arranged on the upper surface of a base plate, lifting sliding frames are arranged on the upper surface of the lifting motors, driving motors are arranged at one ends of the lifting sliding frames, meshing screws are arranged at the output ends of the driving motors, the meshing screws are located at the inner center of the lifting sliding frames, the surfaces of the meshing screws are meshed with the meshing bottom plate, a connecting electric shaft is arranged on the upper surface of the meshing bottom plate, a connecting plate body is arranged on the upper surface of the connecting plate body, a positioning motor is arranged at the center of the connecting plate body, a rear connecting plate is arranged at the tail end of an output shaft of the positioning motor, a center storage box is arranged on one side surface of the rear connecting plate, turnover side plates are connected to the two side surfaces of the center storage box through an electric driving shaft, electromagnets are arranged at one ends of the turnover side plates, and side storage bags are arranged on one side surfaces of the two side plates, and magnetorheological fluid filled in the center storage box and the side storage bags.
2. The numerical control milling machine machining fixture for the thin-wall easily-deformed parts, disclosed by claim 1, is characterized in that a storage cavity is formed in one side surface of the center storage box, limiting grooves for installing the rear connecting plate are formed in the upper surface and the lower surface of the storage cavity, a plurality of small springs are arranged in the limiting grooves, one ends of the small springs are connected with the inner side surface of the limiting grooves, the other ends of the small springs are connected with one side surface of the rear connecting plate, and fixed jacking piles and telescopic jacking piles are further arranged in the center storage box.
3. The numerical control milling machine machining fixture for thin-wall easily-deformable parts, according to claim 2, is characterized in that connecting strips are arranged at one ends of the fixed jacking piles and the telescopic jacking piles, side sliding channels for limiting the sliding of the connecting strips are formed in the inner side surfaces of the central storage box, meshing insections are formed in the surfaces of the two adjacent side surfaces of the connecting strips, a meshing toothed cylinder is further arranged between the two connecting strips, and a miniature motor for driving the meshing toothed cylinder to rotate is arranged at one end of the meshing toothed cylinder.
4. The numerical control milling machine machining fixture for the thin-wall easily-deformable parts, which is characterized by further comprising an additional component, wherein the additional component comprises a sliding frame body, the sliding frame body is arranged on one side surface of an observation camera, a side motor is arranged on one side surface of the sliding frame body, a small screw is arranged at the output end of the side motor and is positioned in the sliding frame body, an engagement sliding block is meshed with the surface of the small screw, a small electric turntable is arranged on the upper surface of the engagement sliding block, a limiting clamping groove is formed in the upper surface of the small electric turntable, a rotating connecting plate is arranged on the upper surface of the limiting clamping groove, and an engagement connecting plate is arranged on the upper surface of the rotating connecting plate.
5. A numerical control milling machine machining fixture for thin-walled easily deformable parts is characterized in that a sliding following table is arranged at the bottom end of the meshing connecting plate, a sliding channel for limiting the bottom end of the meshing connecting plate to prevent the bottom end of the meshing connecting plate from being separated is formed in the upper surface of the sliding following table, a bottom sliding frame convenient for the sliding following table to slide is further arranged on the side surface of the connecting plate body, a sliding wheel disc is arranged on the upper surface of the sliding following table, and two limiting sliding frames for limiting the sliding wheel disc are further arranged on the side surface of the connecting plate body.
6. The numerical control milling machine machining fixture for thin-wall easily-deformable parts, according to claim 5, characterized in that a control motor is arranged on one side surface of the sliding wheel disc, a miniature threaded rod is arranged at the output end of the control motor, the miniature threaded rod is meshed with the center of the meshing connection plate, the miniature threaded rod is arranged on the bottom surface of the sliding following table, a limiting rod matched with the driven sliding block is arranged in the bottom sliding carriage, a groove is formed in the bottom surface of the bottom sliding carriage, the bottom surface of the driven sliding block is connected with a rotating connection plate through a rotating shaft, an additional cylinder frame is arranged between the two rotating connection plates, a plurality of movable plate bodies are arranged on the surface of the additional cylinder frame, and torsion springs are arranged at the joints of the movable plate bodies and the additional cylinder frame.
7. The numerical control milling machine machining fixture for the thin-wall easily-deformable parts is characterized by further comprising an auxiliary assembly, wherein the auxiliary assembly comprises four water storage side boxes, the four water storage side boxes are arranged on four side surfaces of a central table body, cooling liquid is filled in the water storage side boxes, two small water pumps are arranged in the water storage side boxes, water outlets and water inlets are formed in two sides above the water storage side boxes, cooling additional boxes are arranged on one side surfaces of the two turnover side plates, water outlets and water inlets are formed in the surfaces of the cooling additional boxes, water outlet connecting pipes are connected between the water outlets and the water outlets, water delivery connecting pipes are connected between the water inlets and the water inlets, cooling plate bodies are further arranged on two side surfaces of the water storage side boxes, and cooling fans are arranged in the centers of the cooling plate bodies.
8. The numerical control milling machine machining fixture for the thin-wall easily-deformable parts, which is characterized in that an electric rotating shaft is further arranged on one side surface of the water storage side box, a connecting supporting rod is arranged on one side surface of the electric rotating shaft, a split ring frame is arranged between the two connecting supporting rods on the same side, and a plurality of observation cameras are arranged on the inner side surface of the split ring frame.

Description

Numerical control milling machine machining fixture for thin-wall easily-deformed part Technical Field The invention relates to the technical field of milling machine machining fixtures, in particular to a numerical control milling machine machining fixture for a thin-wall part easy to deform. Background In the field of precision mechanical manufacturing, numerical control milling processing of thin-wall parts (such as aerospace structural parts, precise instrument shells, complex cavity components and the like) with easy deformation is always a key process link, the parts generally have the characteristics of thin wall thickness, complex structure and weak overall rigidity, aluminum alloy, titanium alloy or composite materials are often selected as materials to realize light weight and high performance requirements, a numerical control milling machine is used as core equipment for realizing high-precision and complex profile processing, the processing efficiency of the numerical control milling machine is closely related to the shape precision, the position precision and the surface quality of a final part, the parts must be reliably positioned and clamped on a machine tool workbench through a special clamp system in the processing process so as to bear multiple physical field effects such as cutting force, cutting heat and vibration, the overall rigidity and stability of the processing process system are directly determined by the performance of the clamp, and the critical effect is further played on the processing deformation control of the parts. The prior clamp technology has a plurality of inconveniences, for thin-wall easily-deformed parts, the prior clamp has serious defects in clamping force control, when the prior clamp applies clamping force, the prior clamp is difficult to uniformly distribute, often causes over-strong local stress of the parts, and due to the fragile structure of the thin-wall parts, the uneven clamping force extremely easily causes the surface of the parts to be sunken, seriously influences the processing precision and the surface quality of the parts, causes a large number of defective products to be generated, increases the production cost, when the processed parts with irregular structures exist on the facing surfaces, the prior clamp has extremely poor adaptability, and many parts have complex special structures such as bulges, sharp objects and the like, the prior clamp usually only adopts a single transverse clamping mode, can not be flexibly adjusted according to the actual shape of the parts, when the parts with longer bulges exist on the surfaces are encountered, the traditional clamp can not realize effective clamping at all, so that the problems of shaking, shifting and the like of the parts are extremely easy to occur in the processing process, the processing stability can not be ensured, the processing precision and the processing efficiency are further influenced, the traditional clamp is more incapable in the aspect of coping with the thermal expansion and cold contraction characteristics of the parts, the parts are expanded due to heating in the processing process, the traditional clamp lacks a corresponding abdication mechanism, when the parts are expanded, the clamp is still tightly clamped, huge extrusion stress is generated on the surfaces of the parts, irreversible concave is caused on the surfaces of the parts, the shape and the dimensional precision of the parts are seriously damaged, the parts become waste products, in addition, the traditional clamp also has great loopholes in the protection function, the sharp protrusions exist on the surfaces of the parts, in the clamping process, the sharp objects are extremely easy to puncture the flexible parts of the clamp, such as rubber pads and the like, once the flexible parts are punctured, not only can damage the clamp, but also can lead to unstable clamping force of the clamp to the part, influence the processing quality, even possibly cause safety accidents, Disclosure of Invention The invention aims to provide a numerical control milling machine machining fixture for a thin-wall deformable part, which is used for solving the problems in the background technology. In order to achieve the above object, the present invention provides a numerical control milling machine processing fixture for thin-wall easily deformable parts, comprising: the base plate, a plurality of anchor mounting holes are formed in the upper surface of the base plate, a center table body is arranged in the center of the base plate, a clamping placing table is arranged on the upper surface of the center table body, a clamping mechanism is further arranged on the upper surface of the base plate, and the clamping mechanism comprises a clamping plate assembly; The clamping plate assembly comprises four lifting motors, the four lifting motors are arranged on the upper surface of a base plate, lifting sliding frames are arranged on the upper