A detection tool with automatic centering function of workpiece centerline
A technology for automatic centering and detection of tools, which is used in measuring devices, mechanical measuring devices, and mechanical gap measurement. Quantity and other issues to achieve the effect of reducing testing costs, ensuring stability, and ensuring product quality
Inactive Publication Date: 2015-08-05
TIANJIN BOXIN AUTOMOBILE PARTS
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Problems solved by technology
Since this positioning structure cannot ensure that the centerline of the workpiece to be tested passes through the center of the inspection tool, the positional relationship between the left and right connecting rod brackets and the centerline of the workpiece cannot be detected by the inspection tool alone, and the distance between the two positioning holes of the workpiece cannot be accurately measured. Therefore, the inspection tool must be used in conjunction with other measuring instruments to meet the inspection requirements for the sub-frame assembly
Method used
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[0018] Referring to Fig. 1 and Fig. 2, the present invention includes an automatic centering mechanism, a detection actuator, a data display mechanism and a detection workbench 11, and the automatic centering mechanism includes a center swivel seat 7, an equal arm crank 5 and a zero calibration device, so The center swivel seat 7 is fixed on the detection workbench 11, and it is hinged with the central hole of the equi-arm crank 5, and the outer ends of the arms on both sides of the equi-arm crank 5 are fitted with the connecting rod 8 of the detection actuator respectively. One side arm of the arm crank 5 is provided with a zero calibration hole matched with the zero calibration device. The zero calibration device is composed of a zero calibration pin 4 and a zero calibration seat 6. The zero calibration pin 4 is matched with the zero calibration seat 6. The zero calibration seat 6 is fixed on the detection workbench 11; the detection actuator includes two detection units arra...
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Provided is a detection tool with a function of automatic centering of a workpiece center line. The detection tool is used for detecting sports utility vehicle (SUV) auxiliary frame assemblies and comprises an automatic centering mechanism, a detection executing mechanism, a data displaying mechanism and a detection worktable, wherein the automatic centering mechanism comprises a central rotating base, an equal-arm crank and a rectifying device. The central rotating base is fixed on the detection worktable and hinged to a central hole of the equal-arm crank, the outer ends of two lateral arms of the equal-arm crank are respectively assembled with corresponding elements of the detection executing mechanism, a rectifying hole matched with the rectifying device is arranged on a lateral arm of the equal-arm crank, the rectifying device is composed of a rectifying pin and a rectifying base which are matched with each other, and the rectifying base is fixed on the detection worktable. The detection tool enables the workpiece center line to be automatically centered without any other auxiliary tools, can fast detect offset of a workpiece basic hole, reduces the detection cost of workpieces and improves detection efficiency.
Description
technical field [0001] The invention relates to a punching workpiece detection tool, which is especially suitable for detecting the punching parts of the sub-frame of an SUV type automobile, and belongs to the technical field of automobiles. Background technique [0002] The sub-frame assembly of SUV models is one of the main components of the car chassis. The position deviation of the left and right link brackets on it relative to the center line of the sub-frame and the position deviation of the positioning holes directly affect the adjustment and adjustment of the four-wheel angle. Body assembly. At the same time, when testing each mounting hole of the sub-frame, the center line is used as the reference. Therefore, the center line of the sub-frame is the unified reference in the process of processing, assembling and testing. At present, the inspection of the sub-frame assembly generally adopts the inspection tool with two fixed positioning pins (such as the attached fig...
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IPC IPC(8): G01B5/252G01B5/14
Inventor 智伟宁王惠敏姜超刘强张宏远王东强
Owner TIANJIN BOXIN AUTOMOBILE PARTS