A special fixture for single-row LCD TV frame
A technology of LCD TVs and special fixtures, applied in clamping, manufacturing tools, metal processing mechanical parts, etc., can solve the problems of low qualified rate of finished products, affecting the accuracy of processing, pressure loss of frame workpieces, etc., and achieve long service life. , Reasonable design and simple structure
Active Publication Date: 2017-02-01
FOSHAN PRATIC CNC SCI & TECH
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Problems solved by technology
In the processing of LCD TV frame workpieces, the frame workpieces are generally clamped by double fixed clamping fixtures on the left and right sides of the cylinder. When the workpiece is processed, it only receives the radial clamping force in the Y direction, and the workpiece in the Z direction axis It is easy to move and affect the precision of processing
In addition, because the clamping contact surface of the frame workpiece is small, if the radial clamping force is increased, the pressure loss of the frame workpiece may occur, so that the processing of the frame workpiece is not precise, and the qualified rate of the finished product is not high
Method used
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[0026] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0027] A special fixture for single-row LCD TV frames, including a bottom plate 1, an X-direction positioning device 2, a Y-direction positioning device 3, and a Z-direction positioning device 4;
[0028] The X-direction positioning device 2 is installed on the workbench of the machine tool through the mounting base 5, and is arranged on any end of the lateral direction of the base plate 1, and the X-direction positioning device 2 is connected to and controls its X-direction positioning reference plate 23. Transversely push the frame workpiece 10 on the base plate 1 to realize X-direction positioning;
[0029] A plurality of protruding clamping grooves 11 are horizontally arranged on the working table of the base plate 1, and the frame workpieces 10 are respectively placed on both sides of the groov...
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The invention relates to a special fixture for a frame of a single-row liquid crystal display television set. The fixture comprises a bottom plate, a Y-direction positioning device and a Z-direction positioning device; an X-direction positioning device is connected with and controls a X-direction positioning reference plate of the X-direction positioning device to carry out transverse pushing on frame workpieces on the bottom plate so as to realize X-direction positioning; the Y-direction positioning device is respectively and horizontally arranged on the groove surfaces of clamping grooves along the positions of transverse midlines of the clamping grooves and respectively provides positioning thrusts vertical for limiting ribs on the two sides for the frame workpeices on the two sides to carry out Y-direction positioning on the frame workpeices; the Z-direction positioning device is arranged along the positions of the transverse midlines of the clamping grooves, is vertically mounted on the clamping grooves and respectively provides positioning pressing forces vertical to the bottom plate for the frame workpieces on the two sides to carry out Z-direction positioning on the frame workpieces. The special fixture for the frame of the single-row liquid crystal display television set, provided by the invention can realize mutually-vertical clamping and positioning in multiple directions and can ensure and improve the processing precision of the frame workpieces.
Description
technical field [0001] The invention relates to the field of machining fixtures, in particular to a special fixture for a single-row LCD TV frame. Background technique [0002] With the development of numerical control technology, many parts of products are processed by CNC machine tools. Generally, fixtures need to be installed on the machine tool to clamp the workpiece or guide the tool. Its function is to position the workpiece so that the workpiece can obtain relative The correct position, and reliable clamping of the workpiece. In the processing of LCD TV frame workpieces, the frame workpieces are generally clamped by double fixed clamping fixtures on the left and right sides of the cylinder. When the workpiece is processed, it only receives the radial clamping force in the Y direction, and the workpiece in the Z direction axis It is prone to movement and affects the accuracy of processing. In addition, because the clamping contact surface of the frame workpiece is sm...
Claims
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IPC IPC(8): B23Q3/08B23Q11/08
CPCB23Q3/062B23Q3/08B23Q11/08
Inventor 刘世泉罗家海李欢马继
Owner FOSHAN PRATIC CNC SCI & TECH