Eccentricity testing tool for crankshaft hole and piston hole of cylinder block valve plate

Abstract

The utility model discloses an eccentricity testing tool for a crankshaft hole and a piston hole of a cylinder body valve plate, the 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 horizontal pipe extending in the Z direction, the horizontal pipe is provided with the piston hole in the X direction, and the middle part of the other end of the cylinder body valve plate is provided with a crankshaft hole extending in the X direction. The two ends of the cylinder body valve plate are provided with bottom claw threaded holes which are sunken in the X direction; the inspection tool comprises a base plate, a supporting block, a fixed pin shaft and an inspection insertion rod, the base plate is a flat plate extending in the XY plane, and a supporting block is fixedly arranged on the base plate in the Z direction. The fixed pin shaft is fixedly arranged on the side wall of the supporting block in the X direction, and the inspection insertion rod is inserted into the supporting block below the fixed pin shaft in an X-direction sliding and penetrating mode. The testing tool can effectively test the length of the horizontal pipe, the end face levelness of the horizontal pipe and the hole position and eccentricity of the piston hole, 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 eccentricity of cylinder valve piece crankshaft hole and piston hole. BACKGROUND

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

[0003] However, it is difficult to find a standard reference surface or reference point on the surface of the special-shaped workpiece, 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 an eccentricity gauge for the crankshaft hole and piston hole of a cylinder valve piece. The gauge can effectively inspect the length of the cross tube, the levelness of the cross tube end face, the hole position of the piston hole and the eccentricity, and has a simple structure and is easy to implement.

[0005] To solve the above problems, the utility model provides an eccentricity gauge for the crankshaft hole and piston hole of a cylinder valve piece. The cylinder valve piece inspected by the gauge has an L-shaped structure. One end of the cylinder valve piece is fixedly provided with a Z-directionally extending cross tube. The cross tube is provided with a piston hole in the X direction. The other end of the cylinder valve piece is provided with an X-directionally extending crankshaft hole. The two ends of the cylinder valve piece are provided with X-directionally recessed pawl threaded holes.

[0006] The gauge uses the crankshaft hole as a positioning reference to inspect the hole position, eccentricity, length of the cross tube and levelness of the cross tube end face of the piston hole. The gauge comprises a base plate, a support block, a fixed pin shaft and an inspection plug rod. The base plate is a flat plate extending in the XY plane. The support block is fixedly provided on the base plate in the Z direction. The fixed pin shaft is fixedly provided on the side wall of the support block in the X direction. The support block below the fixed pin shaft is provided with the X-directionally slidingly penetrating inspection plug rod.

[0007] Preferably, the side wall of the support block is fixedly provided with a positioning rod for positioning the cylinder valve piece at an angle in the YZ vertical plane. The positioning rod is arranged at both ends of the axial connection line of the inspection plug rod and the fixed pin shaft. The positioning rod is X-directionally inserted into the pawl threaded hole of the cylinder valve piece.

[0008] Preferably, the following conditions are met simultaneously during inspection to determine whether the cylinder valve piece is qualified:

[0009] A. The fixed pin shaft is coaxially and radially gap-fitted and inserted into the crankshaft hole of the cylinder valve piece,

[0010] B. The cross tube end face of the cylinder valve piece is attached to the top surface of the base plate,

[0011] C. The piston hole of the cylinder valve plate is coaxially inserted with the inspection rod and is radially gap fit.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The eccentricity testing fixture of the crank hole and the piston hole of the cylinder valve plate of the utility model firstly provides the main support for the testing fixture and the cylinder valve plate through the vertically connected base plate and the supporting block, the crank hole of the cylinder valve plate is positioned on the YZ vertical plane by the fixed pin shaft in the process, the positioning rod is inserted and positioned on the X direction to the bottom claw threaded hole, the inspection rod is inserted and positioned on the X direction to the piston hole, and finally the transverse hole shaft end is slidably attached to the top surface of the base plate, so that the installation structure tests the dimensional accuracy of each part of the cylinder valve plate. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Fig. 1 It is a perspective view (testing attitude) of the utility model;

[0016] Fig. 2 It is a side view (testing attitude) of the utility model;

[0017] Fig. 3 It is a perspective view of the utility model of the insertion rod;

[0018] In the figure: 1-cylinder valve plate; 2-fixed pin shaft; 3-supporting block; 4-base plate; 5-crank hole; 6-piston hole; 7-cross pipe; 8-positioning rod; 9-inspection rod. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of the present application, it is necessary to explain 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 indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] The utility model makes further detailed description in combination with the drawings.

[0022] In combination Figs. 1-3 The utility model provides a kind of eccentricity of cylinder valve piece crankshaft hole and piston hole gauge, the cylinder valve piece 1 tested by the gauge is L-shaped structure, one end of the cylinder valve piece is fixed with the transverse pipe 7 extending in Z direction, piston hole 6 is opened in X direction on the transverse pipe, the other end of the cylinder valve piece is provided with the crankshaft hole 5 extending in X direction in middle part, and X direction recessed bottom claw threaded hole is opened in the both ends of the cylinder valve piece;

[0023] The gauge is positioned with crankshaft hole to test the hole position, eccentricity of piston hole and the horizontal degree of transverse pipe length and transverse pipe end face, the gauge includes base plate 4, support block 3, fixed pin shaft 2 and test insertion rod 9;Base plate is the flat plate extending in XY plane, support block is fixed in Z direction on the base plate;Fixed pin shaft is fixed in X direction on the side wall of support block, and test insertion rod is inserted and connected in X direction slidingly penetrating on the support block below the fixed pin shaft.

[0024] Preferably, the side wall of support block is fixed with positioning rod 8 positioned at corner of cylinder valve piece in YZ vertical plane;Positioning rod is arranged at both ends of the axial connection line of test insertion rod and fixed pin shaft, and is inserted in X direction in the bottom claw threaded hole of cylinder valve piece.

[0025] Preferably, the following conditions are met simultaneously when testing to test qualified:

[0026] A. the crankshaft hole of the cylinder valve piece is coaxially slid and radially clearance fitted with the fixed pin shaft,

[0027] B. the transverse pipe end face of the cylinder valve piece is attached on the top surface of the base plate,

[0028] C. the piston hole of the cylinder valve piece is coaxially slid and radially clearance fitted with the test insertion rod.

[0029] The working principle of the utility model is:

[0030] The eccentricity of the cylinder valve piece crankshaft hole and piston hole gauge of the utility model, when testing:

[0031] 1. The horizontal pipe shaft end of the cylinder valve piece is attached to the top surface of the base plate, and the cylinder valve piece is rotated on the XY horizontal plane to align the crankshaft hole with the fixed pin shaft;

[0032] 2. The cylinder valve piece is pushed horizontally to insert the fixed pin shaft into the crankshaft hole; the insertion of the protection liver into the piston hole is checked; the positioning rod is inserted into the base jaw threaded hole to pass the check.

[0033] The above describes the present application and its embodiments, which are not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments similar to the technical solution, which should belong to the protection scope of the present application.

Claims

1. An eccentricity tester for the crankshaft hole and piston hole of a cylinder block valve plate. The cylinder block valve plate to be tested by this tester has an L-shaped structure. One end of the cylinder block valve plate is fixedly provided with a horizontal pipe extending in the Z direction. A piston hole is provided in the X direction on this horizontal pipe. The middle of the other end of the cylinder block valve plate is provided with a crankshaft hole extending in the X direction. And bottom claw threaded holes recessed in the X direction are provided at both ends of the cylinder block valve plate. Its features are: The tester tests the hole position, eccentricity, length of the horizontal pipe, and flatness of the end face of the horizontal pipe of the piston hole with the crankshaft hole as the positioning reference. The tester includes a base plate, a support block, a fixed pin shaft, and a test insertion rod. The base plate is a flat plate extending in the XY plane. A support block is fixedly provided in the Z direction on the base plate. The fixed pin shaft is fixedly provided in the X direction on the side wall of the support block. The test insertion rod is slidably inserted and penetrated in the X direction on the support block below the fixed pin shaft.

2. The eccentricity testing fixture for the crankshaft bore and piston bore of a cylinder block valve plate according to claim 1, characterized in that: A positioning rod for positioning the cylinder block valve plate at a corner in the YZ vertical plane is fixedly provided on the side wall of the support block. The positioning rods are arranged at both ends of the axis connection line between the test insertion rod and the fixed pin shaft. The positioning rods are inserted in the X direction into the bottom claw threaded holes of the cylinder block valve plate.

3. The eccentricity tester for the crankshaft hole and piston hole of a cylinder block valve plate according to claim 1, wherein: When testing, the cylinder block valve plate is considered qualified if it simultaneously meets the following conditions: A. The fixed pin shaft is inserted and fixed in the crankshaft hole of the cylinder block valve plate with coaxial sliding and radial clearance fit. B. The end face of the horizontal pipe of the cylinder block valve plate is in contact with the top surface of the base plate. C. The test insertion rod is inserted and fixed in the piston hole of the cylinder block valve plate with coaxial sliding and radial clearance fit.

Images