Cylindricity testing tool for cylinder body valve plate column pipe

Abstract

The utility model discloses a cylindricity testing tool for a cylinder body valve plate column tube, a cylinder body valve plate tested by the testing tool is of an L-shaped structure, one end of the cylinder body valve plate is fixedly provided with a column tube extending in the Z direction, the middle part of the other end of the cylinder body valve plate is provided with a crankshaft hole extending in the X direction, and two ends of the cylinder body valve plate are provided with bottom claw threaded holes recessed in the X direction; the checking tool checks the cylindricity of a column tube by taking a crankshaft hole as a positioning reference. The checking tool comprises a lathe chuck, a U-shaped seat and an X-direction pin rod, a U-shaped seat is fixedly arranged on an XZ vertical plane on a lathe chuck in a posture that an opening faces upwards, and a cylinder body valve plate is inserted into a YZ vertical side wall of the U-shaped seat in a Z-direction vertical posture through an X-direction pin rod; and the lathe chuck is coaxial with the column tube. The detection tool can be fixedly arranged on a three-jaw chuck of a lathe, is matched with the detection end of the micrometer to be attached to the periphery of a column tube along with rotation of a spindle of the lathe so as to detect cylindricity of the column tube, and is simple in structure and easy to implement.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field, concretely is a kind of cylindricity gauge of cylinder valve piece column pipe. BACKGROUND

[0002] In the prior art machining field, it is difficult to inspect the size of each part of the special-shaped workpiece, especially the blank. Usually, the drawing requires the size of the middle hole to a certain side, or the width / length size after centering the two sides, or the hole spacing and perpendicularity between holes.

[0003] However, due to the unprocessed surface of the special-shaped workpiece, it is difficult to find a standard reference surface or reference point, and it is difficult to measure and verify the size of the specific part of the workpiece planned on the drawing. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one object of the utility model is to provide a cylindricity gauge for a cylinder valve piece column pipe. The gauge can be fixed on a lathe three-jaw chuck and rotate with the main shaft of the lathe. The gauge is simple in structure and easy to implement.

[0005] To solve the above problems, the utility model provides a cylindricity gauge for a cylinder valve piece column pipe. The cylinder valve piece inspected by the gauge has an L-shaped structure. One end of the cylinder valve piece is fixed with a Z-directionally extending column pipe. The other end of the cylinder valve piece is provided with an X-directionally extending crankshaft hole. Two ends of the cylinder valve piece are provided with X-directionally recessed bottom claw threaded holes.

[0006] The cylindricity gauge uses the crankshaft hole as a positioning reference to inspect the cylindricity of the column pipe. The gauge includes a lathe chuck, a U-shaped seat, and an X-directional pin rod. The U-shaped seat is fixed on the lathe chuck in an open upward posture on the XZ vertical plane. The YZ vertical side wall of the U-shaped seat is inserted with the cylinder valve piece in a Z-directionally vertical posture through the X-directional pin rod. The lathe chuck is coaxial with the column pipe.

[0007] Preferably, the U-shaped seat is eccentrically fixed on the top surface of the lathe chuck. One vertical side wall of the U-shaped seat is provided with a positioning pin hole for inserting the X-directional pin rod. X-directional threaded hole pins are fixed on the vertical side wall of the U-shaped seat above and below the normal projection of the positioning pin hole.

[0008] Preferably, the free end of the X-directional pin rod penetrates the crankshaft hole and the positioning pin hole in sequence. A snap spring is sleeved on the X-directional pin rod and axially abuts against the vertical side wall of the U-shaped seat to axially fix the X-directional pin rod.

[0009] The utility model has the following advantages compared with the prior art:

[0010] The utility model discloses a kind of cylindricity of cylinder valve piece column pipe, and it is supported by lathe chuck fixed support U-shaped seat, and it is supported cylinder valve piece by U-shaped seat indirectly coaxial by lathe chuck;By X direction pin rod, positioning pin hole and clasp spring, X direction pin fixes the crank hole of cylinder valve piece, and the rotation inclination of cylinder valve piece on YZ vertical plane is positioned by threaded hole pin rod, and then lathe chuck and column pipe coaxial positioning are realized. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0012] Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0013] Fig. 2 It is a side view (inspection attitude) of the utility model;

[0014] Fig. 3 It is a top view (inspection attitude) of the utility model;

[0015] In the figure: 1-X direction pin rod; 2-threaded hole pin rod; 3-positioning pin hole; 4-U-shaped seat; 5-lathe chuck; 6-column pipe; 7-cylinder valve piece; 8-clasp spring. DETAILED DESCRIPTION

[0016] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0017] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0018] The utility model will be further described in detail below in combination with the drawings.

[0019] Combined Figs. 1-3The utility model discloses a kind of cylindricity of cylinder valve piece column pipe measuring tool, the cylinder valve piece 7 of this measuring tool inspection is L type structure, the one end of cylinder valve piece is fixed with the column pipe 6 of Z direction extension, the other end of cylinder valve piece is provided with the crank hole of X direction extension, and the two ends of cylinder valve piece are provided with the X direction recessed bottom claw thread hole;

[0020] Measuring tool is positioned with the cylindricity of column pipe with crank hole as reference, and the measuring tool includes lathe chuck 5, U-shaped seat 4 and X direction pin rod 1;U-shaped seat is fixed on lathe chuck in open upward posture on XZ vertical plane, and the YZ vertical side wall of the U-shaped seat is inserted with cylinder valve piece in Z vertical posture by X direction pin rod;Lathe chuck is coaxial with column pipe.

[0021] Preferably, U-shaped seat is eccentrically fixed on the top surface of lathe chuck, and one vertical side wall of the U-shaped seat is provided with positioning pin hole 3 for inserting X direction pin rod in the middle part;X direction protruding thread hole pin rod 2 is fixed on the vertical side wall of U-shaped seat above and below the normal projection of positioning pin hole.

[0022] Preferably, the free end of X direction pin rod penetrates crank hole and positioning pin hole in sequence, and the X direction pin rod is provided with snap spring 8 which is axially supported on the vertical side wall of U-shaped seat to axially fix X pin rod.

[0023] The working principle of the utility model is as follows:

[0024] The utility model discloses a kind of cylindricity of cylinder valve piece column pipe measuring tool, and the inspection steps are as follows:

[0025] 1, first lathe chuck is coaxially fixed in the three-jaw chuck of lathe, and the main shaft of lathe is started at slow speed, and the detection end of micrometer is attached to the circumferential outer wall of lathe chuck, and the coaxiality of lathe chuck and three-jaw chuck of lathe is adjusted by observing micrometer reading;

[0026] 2, the cylinder valve piece is attached to the YZ vertical side wall of U-shaped seat in Z direction posture, and then the two bottom claw thread holes of cylinder valve piece are sleeved into thread hole pin rod, X direction pin rod is penetrated through crank hole and positioning pin hole, and X direction pin rod is axially fixed by snap spring.

[0027] 3, finally, the main shaft of lathe is started, and the detection end of micrometer is attached to the axial end surface and circumferential outer wall of column pipe, and the cylindricity of column pipe is inspected by observing micrometer reading.

[0028] The utility model and its implementation mode are described above, which is not restrictive, and the embodiment shown in the drawing is only one of the utility model, and the actual structure is not limited thereto. In general, if the ordinary skilled person in the art is inspired, without departing from the creative purpose of the utility model, similar structure and embodiments are not creatively designed without departing from the creative purpose of the utility model, which should belong to the protection scope of the utility model.

Claims

1. A cylindricity testing tool for a cylinder valve column pipe, the cylinder valve being of L-shaped structure, one end of the cylinder valve being fixed with a Z-directionally extending column pipe, a middle portion of the other end of the cylinder valve being provided with an X-directionally extending crankshaft hole, and two ends of the cylinder valve being provided with X-directionally recessed bottom claw threaded holes; characterized in that the tool taking the crankshaft hole as a positioning reference to test the cylindricity of the column pipe, the tool comprising a lathe chuck, a U-shaped seat and an X-directional pin rod; the U-shaped seat being fixed on the lathe chuck in an open upward posture on an XZ vertical plane, the YZ vertical side wall of the U-shaped seat being inserted with the cylinder valve in a Z-directionally vertical posture through the X-directional pin rod; and the lathe chuck being coaxial with the column pipe.

2. A cylindricity gauge for a cylinder valve bridge cylinder as defined in claim 1, characterized in that: the U-shaped seat being eccentrically fixed on the top surface of the lathe chuck, one vertical side wall of the U-shaped seat being provided with a positioning pin hole for inserting the X-directional pin rod in a middle portion thereof; and X-directionally protruding threaded hole pin rods being fixed on the vertical side wall of the U-shaped seat above and below the positioning pin hole in orthographic projection.

3. A cylindricity gauge for a cylinder valve bridge cylinder as defined in claim 2, characterized in that: the free end of the X-directional pin rod penetrating the crankshaft hole and the positioning pin hole in sequence, and a clamping spring being sleeved on the X-directional pin rod and axially abutting against the vertical side wall of the U-shaped seat to axially fix the X-directional pin rod.

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