CN2583624Y - Sliding rail device of magnetic displacement sensor - Google Patents

Abstract

The utility model relates to a sliding rail device of a magnetic displacement sensor, which is composed of a fixed ruler frame and a movable ruler body, wherein, the fixed ruler frame is a frame, and two inner sides of the frame, which are parallel to the motion direction of the movable ruler body are composed of two parallel double bevel guideways which are distributed in a definite angle and are provided with four bevels. Two end surfaces of the movable ruler body are respectively formed with four separate slopes which are correspondingly and mutually perpendicular to the slopes of the double bevel guideway. Each independent slope of the two end surfaces is respectively provided with a rolling bearing, and an installing shaft line of a bearing is parallel to the slope of the double bevel guideway. The cylindrical surface of the outer diameter of the bearing is parallel to the slope of the double bevel guideway, and is contacted with the slope of the double bevel guideway, and the bearing is conducted with rectilinear movement along the double bevel guideway. Thus the frictional resistance of reciprocating straight-line motion of single degree of freedom is decreased to a smaller extent, and the accuracy of the straight-line motion of the single degree of freedom of the sliding rail device is enhanced.

Description

A kind of railroad of magnetic displacement transducer

The utility model relates to displacement transducer technology, more specifically to a kind of displacement sensing technology of testing the usefulness magnetics principle making of relatively large journey scope.

The displacement transducer that magnetic displacement transducer is made than other principle have make simple, precision is higher, the advantage of stable performance, but in the ordinary course of things, (for example: the displacement transducer that 5mm is above) is difficult for making relatively large journey measurement range.The WO97/18441 patent of invention (Chinese patent application publication number CN1203660A) of people such as U.S. Fei Xier Heat ﹠ Control Pty Ltd. Patrick John Day erg application has been explained a kind of fixed body that passes through, and a mobile comes the magnetic displacement transducer of perception displacement variable with the magnetic resistance of change in displacement.Patent of invention (the application number: 01106543.5 of the China Cheng Le of Huayan Electronic Co., Ltd, Wuhan equality people application, publication number: CN1309282A) explained an a kind of fixed ruler frame, movable blade formation passed through, and form a plurality of magnetic circuits working cell by a plurality of permanent magnets, a plurality of magneto sensor, can shine upon the position encoded sequence of relatively large journey measurement range with formation, and determine the magnetic displacement transducer of displacement and position encoded corresponding relation by built-in signal detection identification circuit.The advantage of this binomial invention has been to solve the problem that magnetic displacement transducer detects relatively large journey scope.But because the magnetic field intensity of magnetic circuit working cell is nonlinearities change with the detection distance, the mechanical motion error that any point is small all may increase because of nonlinearities change makes the detection error.Generally, for relatively large journey magnetic displacement transducer, the track-type facilities of employing bulk, shaft-like direct sliding friction mode is the degree of precision of bonding freedom degree straight line motion reliably.

The utility model is just in order to address the above problem, its purpose is to provide a kind of reliable single-degree-of-freedom linear motion guide rail, make a kind ofly by the magneto sensor body is installed on the fixed ruler frame, adjustable rule is equipped with the line slide rail device of the magnetic displacement transducer that permanent magnet forms on one's body and can stablizes, work reliably.

Fig. 1 is a mechanical overall construction drawing of the present utility model;

Fig. 2 is a movable blade mechanical construction drawing of the present utility model;

Fig. 3 is a fixed ruler frame mechanical construction drawing of the present utility model;

Fig. 4 is movable blade of the present utility model and rolling bearing mechanical connecting structure figure;

Fig. 5 is fixed ruler frame front shoe of the present utility model and measuring staff cover mechanical connecting structure figure;

Fig. 6 is fixed ruler frame rear fixed plate of the present utility model and accessory power outlet mechanical link structural drawing.

Above-mentioned 6 figures have all been explained structure, the composition of most preferred embodiment of the present utility model.It below is explanation to embodiment.

Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, among Fig. 6, (1), (15) are respectively two pairs of frames of fixed ruler frame-saw frame; (2) for being installed in the magneto sensor body on the fixed ruler frame; (3) be movable blade; (4) be rolling bearing; (5) be permanent magnet; (6) be front shoe; (7) be the measuring staff cover; (8) be pad; (9) be the screw of solid bearing on movable blade inclined-plane; (10) for connecting the screw of magneto sensor body and fixed ruler frame; (11) for the through hole of magneto sensor body is installed; (12) be the fixing logical pit of magneto sensor body on the fixed ruler frame; (13) be magneto sensor body upper screwed hole; (14) adjustable rule solid bearing threaded hole on one's body; (16) for connecting the screw of front shoe and fixed ruler frame; (17) be the fixing threaded hole of front shoe on the fixed ruler frame; (18) be rear fixed plate; (19) for connecting the screw of rear fixed plate and fixed ruler frame; (20) be accessory power outlet; (21) be the fixing threaded hole of rear fixed plate on the fixed ruler frame; (22) be the fixing nut of accessory power outlet; (23) be four inclined-planes of double inclined plane guide rail on the fixed ruler frame; (24) be bearings mounted four the independent inclined-planes of adjustable rule on one's body.

Among Fig. 1, the fixed ruler frame is a framework, framework two inboards parallel with movable blade direction of motion are parallel and have four double inclined plane (23) guide rails that distribute at an angle and constitute by two, adjustable rule is equipped with permanent magnet (5) on one's body, two ends (seeing Fig. 2, (the 3)) surface of movable blade respectively forms four independent inclined-planes (24), independent inclined-plane (24) corresponding with four inclined-planes on the double inclined plane guide rail (23) and vertical (seeing Fig. 2, (24)) mutually; Among Fig. 1, Fig. 2, Fig. 4, all be drilled with a threaded hole (14) on each independent inclined-plane (24) that movable blade two end surfaces distribute, each inclined-plane is respectively by upper and lower each a slice pad (8), and a screw (9) is fixed on rolling bearing (4) on each independent inclined-plane (24); Four inclined-planes of the installation axis of bearing and double inclined plane guide rail are corresponding relation and are parallel to each other, and the bearing outside diameter face of cylinder contacts (seeing Figure 1A-A section, the relation of (4) and (23)) with the double inclined plane plurality of ramps; Fig. 1, Fig. 3, Fig. 4, Fig. 5, among Fig. 6, fixed ruler frame-saw frame framework border (1) two outside parallel with movable blade direction of motion has the through hole (11) that is used to install and fix the magneto sensor body, the through hole upper end is drilled with the logical pit (12) that is used for fixing the magneto sensor body, by attachment screw (10) threaded hole (13) magneto sensor body (2) is fixed in the through hole (11), framework other two frames (15) vertical with movable blade direction of motion, it is on one side by screw (16), threaded hole (17) is connected with the front shoe that studs with measuring staff cover (7) (6), another side is connected with the rear fixed plate that sensor conductor accessory power outlet (20) are housed (18) by screw (19), and sensor conductor accessory power outlet and rear fixed plate fix with nut (22).

In sum, good effect of the present utility model is that four inclined-planes of double inclined plane guide rail at an angle Distribute, retrained five frees degree, eight rolling bearings that are fixed in movable blade can be freely at fixed ruler Four inclined-planes (23) of the double inclined plane guide rail in the frame-saw frame are upper to roll, and it has realized single-degree-of-freedom effectively, reliably Rectilinear motion. Because bearing is the standard universal parts, than alternate manner, rub such as block, shaft-like slip in addition The wiping mode realizes the single-degree-of-freedom rectilinear motion, and its kinematic accuracy is higher, and frictional resistance is littler, has system Make simple, easy, the lower-cost advantage of realization. Therefore, the utility model more can guarantee to detect relatively large The magnetic displacement transducer of journey scope is to precision and the reliability requirement of slide rail.

Claims (2)

1, a kind of fixed ruler frame is a framework, and be equipped with on the fixed ruler frame magneto sensor and before, rear fixed plate, adjustable rule is equipped with permanent magnet on one's body, and by the railroad of forming mutual straight-line magnetic displacement transducer between movable blade and fixed ruler frame by bearing, it is characterized in that: framework two inboards parallel with movable blade direction of motion are parallel and have four double inclined plane guide rails that distribute at an angle and constitute by two, two end surfaces of movable blade respectively form four independent inclined-planes, each independent inclined-plane is corresponding with the double inclined plane plurality of ramps on the fixed ruler frame and vertical mutually, all be drilled with a threaded hole on each independent inclined-plane, each inclined-plane is respectively by last, following each a slice pad, a screw is fixed on rolling bearing on each independent inclined-plane, four inclined-planes of the installation axis of bearing and double inclined plane guide rail are corresponding relation and are parallel to each other, and roll with the double inclined plane plurality of ramps and contact in the bearing outside diameter face of cylinder;

2, railroad according to the said magnetic displacement transducer of claim 1, it is characterized in that, fixed ruler frame-saw frame framework border two outsides parallel with movable blade direction of motion have the through hole that is used to install and fix the magneto sensor body, the through hole upper end is drilled with the logical pit that is used for fixing the magneto sensor body, by attachment screw the magneto sensor body is fixed in the through hole, other two frames of the framework vertical with movable blade direction of motion, it is connected with the front shoe that studs with the measuring staff cover by screw on one side, and another side is connected with the rear fixed plate that the sensor conductor accessory power outlet is housed by screw.

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