Adaptive machine tool for grinding and polishing complex surfaces

Abstract

The invention provides an adaptive machine tool for grinding and polishing complex surfaces, belonging to the technical field of mechanical manufacture. The adaptive machine tool is characterized in that the lower ends of a left column and a right column are fixedly connected with a base; the left column is connected with the left end of a cross beam via a screw and a slide guide of the left column; the right column is connected with the right end of the cross beam via a screw and a slide guide of the right column; the middle of the cross beam is fixedly connected with a tool plate; a lower slide carriage is connected with the base via a screw, a front guide and a rear guide of the lower slide carriage; an upper slide carriage is connected with the lower slide carriage via a screw, a left guide and a right guide of the upper slide carriage; and a rotary table is fixedly connected with the upper slide carriage. The adaptive machine tool has the following advantages: the zones at the four sides are divided to serve as the grinding and polishing contact surfaces to grind and polish the parts with complex surfaces, so that the machine tool has high grinding and polishing efficiency and strong adaptability and can maintain the sharp shape characteristic of the complex surfaces; and the appearance of the contact tool head of the novel grinding and polishing tool system built based on multipoint forming technology can be regulated in real time according to the shape of the ideal machined surface, thus reducing the degree of freedom of design of the machine tool and enhancing the flexibility of the machine tool.

Description

technical field

[0001] The invention belongs to the technical field of mechanical manufacturing. Background technique

[0002] The study of complex surfaces is of great significance to aerospace, military and general civilian industries. Engine blades, gas turbine blades, turbine blades, automotive panel molds, optical lenses and other parts with complex geometries must be ground and polished to achieve aesthetic and functional requirements.

[0003] At present, the processing methods of complex curved surfaces mainly include rigid tool grinding and polishing and flexible tool grinding and polishing. The grinding and polishing method of rigid tools (such as grinding wheels, grinding heads, sand tiles, etc.) at home and abroad mostly adopts the path planning method of point, line and surface approximation to realize the processing of complex curved surfaces; adopts ultra-high speed and powerful grinding and polishing methods to improve grinding and polishing efficiency ;Use...

Examples

Embodiment approach 1

[0045] The overall structure of the program is as follows figure 1 As shown, the base 1, the left column 10, and the right column 9 form a fixed platform; the upper slide 3 and the lower slide 2 are horizontally distributed, and under the action of the upper slide motor 25 and the lower slide motor 22, respectively, they move along the lower slide 2 and the base 1 move longitudinally and laterally; the rotary table 4 is fixed on the upper slide 3, and the rotary table 4 can rotate around its axis; the workpiece 6 is fixed on the rotary table by clamping the positioning block 5 4, the rotary table 4 drives the workpiece 6 to rotate, so that the workpiece 6 is in a suitable processing position relative to the tool head; the horizontal feed movement of the workpiece 6 is provided by the horizontal movement of the upper slide 3 and the lower slide 2; the beam 8. The left column motor 38 and the right column motor 34 drive the Z-axis vertical movement along the left column 10 and t...

Embodiment approach 2

[0053] The overall structure of the program is as follows figure 2 As shown, the scheme's overall machine tool configuration, grinding and polishing tool system structure and working principle, tool feeding system, vertical and horizontal two-dimensional movement of the workpiece in the horizontal plane, and the realization of rotation around the Z axis are the same as those of the implementation scheme. totally agree.

[0054] The difference from Embodiment 1 is that the turning fixture 18 is installed on the rotary table 4, and the turning fixture 18 can drive the complex workpiece 19 to turn a certain angle to process the other surface after processing one surface of the complex part requiring multi-face machining. Sequentially rotating until all surfaces have been machined, in effect flipping the fixture 18 provides a rotational movement about the Y axis.

technical field

[0001] The invention belongs to the technical field of mechanical manufacturing. Background technique

[0002] The study of complex surfaces is of great significance to aerospace, military and general civilian industries. Engine blades, gas turbine blades, turbine blades, automotive panel molds, optical lenses and other parts with complex geometries must be ground and polished to achieve aesthetic and functional requirements.

[0003] At present, the processing methods of complex curved surfaces mainly include rigid tool grinding and polishing and flexible tool grinding and polishing. The grinding and polishing method of rigid tools (such as grinding wheels, grinding heads, sand tiles, etc.) at home and abroad mostly adopts the path planning method of point, line and surface approximation to realize the processing of complex curved surfaces; adopts ultra-high speed and powerful grinding and polishing methods to improve grinding and polishing efficiency ;Use...

Examples

Embodiment approach 1

[0045] The overall structure of the program is as follows figure 1 As shown, the base 1, the left column 10, and the right column 9 form a fixed platform; the upper slide 3 and the lower slide 2 are horizontally distributed, and under the action of the upper slide motor 25 and the lower slide motor 22, respectively, they move along the lower slide 2 and the base 1 move longitudinally and laterally; the rotary table 4 is fixed on the upper slide 3, and the rotary table 4 can rotate around its axis; the workpiece 6 is fixed on the rotary table by clamping the positioning block 5 4, the rotary table 4 drives the workpiece 6 to rotate, so that the workpiece 6 is in a suitable processing position relative to the tool head; the horizontal feed movement of the workpiece 6 is provided by the horizontal movement of the upper slide 3 and the lower slide 2; the beam 8. The left column motor 38 and the right column motor 34 drive the Z-axis vertical movement along the left column 10 and t...

Embodiment approach 2

[0053] The overall structure of the program is as follows figure 2 As shown, the scheme's overall machine tool configuration, grinding and polishing tool system structure and working principle, tool feeding system, vertical and horizontal two-dimensional movement of the workpiece in the horizontal plane, and the realization of rotation around the Z axis are the same as those of the implementation scheme. totally agree.

[0054] The difference from Embodiment 1 is that the turning fixture 18 is installed on the rotary table 4, and the turning fixture 18 can drive the complex workpiece 19 to turn a certain angle to process the other surface after processing one surface of the complex part requiring multi-face machining. Sequentially rotating until all surfaces have been machined, in effect flipping the fixture 18 provides a rotational movement about the Y axis.

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