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A kind of flexible and quick clamping fixture for rotary machine tool and clamping method

A technology of machine tools and fixtures, which is applied in the field of flexible and fast clamping fixtures and clamping, can solve the problems of fast positioning and versatility of fixtures that are not well solved, and achieve easy use, easy flexible automatic production, and reduce the difficulty of production and handling Effect

Active Publication Date: 2021-09-07
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned patent has improved the fixture, it still does not solve the problems of fast positioning and poor versatility of the fixture

Method used

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  • A kind of flexible and quick clamping fixture for rotary machine tool and clamping method
  • A kind of flexible and quick clamping fixture for rotary machine tool and clamping method
  • A kind of flexible and quick clamping fixture for rotary machine tool and clamping method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A flexible and fast clamping fixture for a rotary machine tool includes a main body 1, an anti-rotation positioning block 4, a zero point positioning module 2, a self-positioning pull stud 3, a hydraulic cylinder piston 5, a general clamp 6 for small and medium pieces, and a connecting bolt 7. The hydraulic cylinder piston 5 is located on one side of the main body 1, and the other side of the main body 1 is provided with a zero point positioning module 2, and the zero point positioning module 2 is directly connected with the part through the self-positioning pull stud 3. When the part is small, it cannot be connected with the self-positioning pull stud 3. When the nails 3 are directly connected, the self-positioning pull nail 3 is connected to the general fixture 6 for small and medium pieces, and the general fixture 6 for small and medium pieces is connected to the parts. An anti-rotation positioning block 4 , the anti-rotation positioning block 4 is connected with the ...

Embodiment 2

[0046] A flexible and fast clamping fixture for a rotary machine tool includes a main body 1, an anti-rotation positioning block 4, a zero point positioning module 2, a self-positioning pull stud 3, a hydraulic cylinder piston 5, a general clamp 6 for small and medium pieces, and a connecting bolt 7. The hydraulic cylinder piston 5 is located on one side of the main body 1, and the other side of the main body 1 is provided with a zero point positioning module 2, and the zero point positioning module 2 is directly connected with the part through the self-positioning pull stud 3. When the part is small, it cannot be connected with the self-positioning pull stud 3. When the nails 3 are directly connected, the self-positioning pull nail 3 is connected to the general fixture 6 for small and medium pieces, and the general fixture 6 for small and medium pieces is connected to the parts. An anti-rotation positioning block 4 , the anti-rotation positioning block 4 is connected with the ...

Embodiment 3

[0056] A flexible and fast clamping method for a rotary machine tool. Step 1: Connect the hydraulic cylinder piston 5 with the machine tool hydraulic cylinder, cooperate the zero point positioning system with the main body 1 to form a clamp base, and fasten the clamp base to the machine tool spindle or On the rotary table, install and fix the anti-rotation positioning block 4 on the fixture base, fill the hydraulic oil circuit of the main body 1 and the anti-rotation positioning block 4 with hydraulic oil, and tighten all hydraulic oil circuit plugs 10 .

[0057] Step 2: Workpiece positioning.

[0058] Step 3: Turn off the hydraulic pump, clamp the self-positioning pull stud 3 together with the workpiece and the small and medium-sized universal fixtures on the fixture base to achieve accurate positioning, and then completely fasten the workpiece to the clamping body through the top of the tailstock of the machine tool.

[0059] Step 4: start the hydraulic cylinder of the machi...

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Abstract

The invention belongs to the field of mechanical devices, in particular to a flexible and fast clamping fixture and clamping method suitable for turning-milling compound machine tools, lathes, and CNC milling machines with additional rotary axes, including a main body, an anti-rotation positioning block, a zero point positioning module, and a self-positioning Pull nails, hydraulic cylinder pistons, general fixtures for small and medium pieces, and connecting bolts. The hydraulic cylinder pistons are located on one side of the main body, and the other side of the main body is provided with a zero point positioning module. The parts are directly connected, which solves the problem that the conventional three-jaw chuck, four-jaw chuck or collet clamping method loses its position during milling and processing complex rotary parts, resulting in the scrapping of the workpiece due to out-of-tolerance.

Description

technical field [0001] The invention belongs to the field of mechanical devices, and in particular relates to a flexible and fast clamping fixture and a clamping method suitable for turning-milling compound machine tools, lathes, and numerically controlled milling machines with additional rotary axes. Background technique [0002] At present, the clamping method of machining rotary components on lathes, turn-milling machine tools and CNC milling machines with additional rotary axes is similar to that of ordinary lathes. Generally, chucks (three-jaw or four-jaw) are used to supplement the center frame and the top to clamp the workpiece. Only the clamping force of the chuck and the top force of the top are used to fasten the workpiece, so the workpiece may undergo relative displacement with the chuck under the action of the cutting force and the top force, including relative rotation and axial movement. [0003] Since the turning process produces a complete rotary surface, if ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/08B23Q3/12
CPCB23Q3/082B23Q3/12
Inventor 张文光唐涛朱志坤陈伟郑思来凌平
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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