Large size workpiece outer diameter pneumatic measuring head
A pneumatic measuring head, large-size technology, applied in the field of measuring tools, can solve the problems of difficulty in ensuring the center line of the air hole of the measuring head, the measuring head cannot be separated from the whole machine, the overall structure is bulky and bulky, etc., achieving light weight, flexible and convenient disassembly and assembly, Small size effect
Active Publication Date: 2016-05-25
REACH PRECISION MEASUREMENT GUIYANG COMPANY
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Problems solved by technology
At present, the pneumatic measuring device for the outer diameter of large-sized workpieces usually uses a built-in air channel; since the measuring head is fixedly connected to the built-in air channel, the measuring head cannot be separated from the whole machine, and there are defects such as bulky and bulky overall structure, inconvenient use and carrying.
In addition, the traditional structure of the pneumatic measuring device does not have a positioning device, so it is difficult to ensure that the centerline of the air hole of the measuring head intersects with the centerline of the outer circle of the workpiece, and the measurement error is relatively large
Method used
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[0011] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0012] Such as Figure 1~2 As shown: two air pipes 8 are connected in parallel at both ends of the tee pipe 3, and the two measuring heads 6 respectively fixed at both ends of the connecting rod 1 communicate with the corresponding air pipes 8 through quick-change joints (not shown in the figure). The side of connecting rod 1 is fixed with locating device, and this locating device is made of two slide rods 5 that are fixed on connecting rod 1 by thread, the positioning head 7 that is respectively fixed on each sliding rod 5; 5 can be adjusted so that the air hole centerline of the measuring head 6 intersects with the outer circle centerline of the workpiece.
[0013] In order to ensure accurate positioning, locking nuts 9 are arranged on each slide bar 5, and locking screws 2 are arranged on each positioning head 7. In order to reduce the contact a...
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The invention discloses a pneumatic measuring head for the outer diameter of a large-sized workpiece, which belongs to measuring tools, and aims to provide a pneumatic measuring head which can be separated from a measuring machine. It includes two measuring heads communicated with the air passage; the air passage is an air pipe (8) connected in parallel at both ends of the three-way pipe (3), and the two measuring heads (6) are respectively fixed on the connecting rod (1); the connection There is a positioning device on the rod, and the positioning device is composed of two slide bars (5) fixed on the connecting rod (1) by threads, and positioning heads (7) respectively fixed on each slide bar (5). The invention can effectively reduce the volume and weight of the whole machine, can ensure that the central line of the air hole of the measuring head intersects with the central line of the outer circle of the workpiece, thereby improving the measuring accuracy, and is a pneumatic measuring head for measuring the outer diameter of a large workpiece.
Description
technical field [0001] The invention relates to a measuring tool, in particular to a pneumatic measuring head. Background technique [0002] As we all know, pneumatic measurement is a technology that uses compressed air as the medium to measure the size of the workpiece non-contact; its principle is to use the pressure sensor to convert the pressure difference into The electrical signal is then processed by the data processing unit and the result is displayed. At present, the pneumatic measuring device for the outer diameter of large-sized workpieces usually uses a built-in air channel; since the measuring head is fixedly connected to the built-in air channel, the measuring head cannot be separated from the whole machine, and there are defects such as bulky and bulky overall structure, inconvenient use and carrying. In addition, the traditional structure of the pneumatic measuring device does not have a positioning device, so it is difficult to ensure that the centerline of...
Claims
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IPC IPC(8): G01B13/08
Inventor 顾惠平蒙浩
Owner REACH PRECISION MEASUREMENT GUIYANG COMPANY