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Ball head positioning device for positioning irregular workpieces in combined clamp and positioning method of ball head positioning device

A positioning device and combined fixture technology, applied in positioning devices, metal processing mechanical parts, clamping and other directions, can solve problems such as inability to position irregular workpieces, avoid complex calculations and conversions, direct data, and improve accuracy and stability. Effect

Active Publication Date: 2013-09-04
SHENYANG AIRCRAFT CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a ball head positioning device and method for positioning irregular parts in a combined fixture, which solves the problem that the traditional combined fixture cannot locate irregular workpieces

Method used

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  • Ball head positioning device for positioning irregular workpieces in combined clamp and positioning method of ball head positioning device
  • Ball head positioning device for positioning irregular workpieces in combined clamp and positioning method of ball head positioning device

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Embodiment Construction

[0016] Such as figure 1 As shown, the ball head positioning device for positioning irregular parts in the combined fixture, the ball head positioning device 3 includes a sphere, a circular platform and a cylinder, the above three are connected in sequence and the center lines of the three coincide, and the cylinder The end car has threads, and the cylinder is threadedly connected with the clamp base 1 .

[0017] A positioning method for positioning irregular parts in a combined fixture, which uses the above-mentioned ball head positioning device, includes the following steps:

[0018] (1) Carry out computer simulation positioning first, that is, place the workpiece 2 to the correct position, and place the ball head positioning device 3 near the surface to be positioned. When the ball head positioning device 3 is placed on the fixture base 1, it must ensure its The center line is not only parallel to the horizontal plane of the fixture base 1 but also perpendicular to the vert...

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Abstract

The invention provides a ball head positioning device for positioning irregular workpieces in a combined clamp and a positioning method of the ball head positioning device. The ball head positioning device comprises a ball, a boss and a cylinder which are connected in sequence and of which center lines are superposed. The positioning method includes steps of firstly simulating positioning by a computer, namely simulating to arrange a workpiece at a correct position and arrange the ball head positioning device near a form surface to be positioned; keeping the ball surface of the ball head positioning device in point contact with the form surface to be positioned of the workpiece by contacting function of a computer three-dimensional design system; measuring coordinate sizes of various surfaces of a clamp base body away from the ball center point of the ball head positioning device by means of a computer three-way measuring function after simulating positioning of the computer is finished, then adjusting workpieces positions of a combined clamp fittingly connected with the ball head positioning device, and finally accurately positioning the workpiece. The ball head positioning device solves the problem that conventional combined clamps cannot position irregular workpieces.

Description

technical field [0001] The invention relates to a ball head positioning device for positioning irregular parts in a combined fixture and a positioning method thereof, belonging to the technical field of combined fixture design and manufacture. Background technique [0002] During the production process of the combined fixture, when the positioning reference of the product parts is an irregular surface such as an inclined plane, a compound angle surface, a curved surface, etc., it is impossible to use the existing combined fixture components to achieve accurate positioning, because the components in the combined fixture system are basically all It has a regular geometric shape with straight edges and right angles. When the positioning surface of the product part is irregular, it is difficult to achieve a state where the positioning component and the reference surface are completely attached. The traditional method is "approximate adjustment" or adjustment according to the mar...

Claims

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Application Information

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IPC IPC(8): B23Q3/00
Inventor 葛汝学刘迪王金财
Owner SHENYANG AIRCRAFT CORP
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