A drilling and milling machine with various limits

Abstract

The invention discloses a drilling and milling machine with various positions, which comprises a support plate; the bottom of the support plate is formed with several support feet; the lower end of the piston rod of the lift cylinder is fixed with a cutter driving unit; the lower end of the cutter driving unit is provided with a cutter; The drilling and milling machine also includes a limit device; the limit device includes four limit units evenly distributed on the circumference; the limit unit includes a cuboid limit support bar that is rotatably arranged on the upper end surface of the support plate; the limit support bar The upper end surface moves along its length direction to set a limit moving plate; the inner side of the limit moving plate moves to set a limit seat; the moving direction of the limit seat is perpendicular to the limit support bar; the limit seat is far away from the end of the limit support bar The elastic expansion and contraction are provided with several limit abutment rods.

Description

technical field [0001] The invention relates to the technical field of drilling and milling machines, in particular to a drilling and milling machine with various positions. Background technique [0002] Shaped parts mean that the upper and lower surfaces of the workpiece are not the same or similar; it is different from standard parts and ordinary rod, ring, and cake-shaped workpieces. The processing of thin-walled parts has always been difficult to solve. The reason is that thin-walled parts have poor rigidity and weak strength, and are easy to deform during processing, and it is not easy to guarantee the processing quality of the parts. There are many factors that affect the accuracy of thin-walled parts, but they can be summed up mainly in the following three aspects: (1) Stress deformation, due to the thin wall of the bow and arrow, it is easy to deform under the action of clamping force, thus affecting the dimensional accuracy and shape precision. (2) Thermal deform...

AI Technical Summary

Problems solved by technology

The reason is that thin-walled parts have poor rigidity and weak strength, and are easy to deform during processing, and it is not easy to guarantee the processing quality of parts

There are many factors that affect the accuracy of thin-walled parts, but they can be summed up mainly in the following three aspects: (1) Stress deformation, due to the thin wall of the bow and arrow, it is easy to deform under the action of clamping force, thus affecting the dimensional accuracy and Shape accuracy

(2) Thermal deformation, because the workpiece is thin, cutting heat will cause thermal deformation of the workpiece, making it difficult to control the size of the workpiece

(3) Vibration deformation, under the action of cutting force (especially radial cutting force), it is easy to generate vibration and deformation, which affects the dimensional accuracy, shape, position accuracy and surface roughness of the workpiece

For thin-walled workpieces and special-shaped workpieces, it is difficult to drill and mill, difficult to clamp, small clamping force area, easy to deform, easy to loosen, etc.

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