Position testing tool for U-shaped groove and crankshaft hole of cylinder body

Abstract

The utility model discloses a position testing tool for a U-shaped groove and a crankshaft hole of a cylinder body, the testing tool is used for testing the relative position of the U-shaped groove and the crankshaft hole on a cylinder body valve plate, the cylinder body valve plate is of an L-shaped structure, the vertical surface of the cylinder body valve plate is provided with the U-shaped groove, and the horizontal surface of the cylinder body valve plate is fixedly provided with the crankshaft hole; the testing tool comprises an inserting rod, the top of the inserting rod is fixedly provided with a handheld ball head, the middle section of the inserting rod is fixedly provided with a U-shaped groove testing block in the radial direction, and the bottom end of the inserting rod coaxially slides and is inserted into the crankshaft hole in a clearance fit mode. The inspection tool can effectively inspect the relative position of the U-shaped groove and the crankshaft hole, inspects the depth, width and root curvature radian of the U-shaped groove by taking the crankshaft hole as a reference point, and is simple in structure and easy to realize.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field, concretely is a kind of position verification tool of cylinder body U-shaped groove and crankshaft 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 the 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 a position verification tool for a cylinder body U-shaped groove and a crankshaft hole. The tool can effectively verify the relative position of the U-shaped groove and the crankshaft hole, and use the crankshaft hole as a reference point to verify the groove depth, groove width and groove root curvature of the U-shaped groove. The structure is simple and easy to implement.

[0005] To solve the above problems, the utility model provides a position verification tool for a cylinder body U-shaped groove and a crankshaft hole. The tool verifies the relative position of the U-shaped groove and the crankshaft hole on the cylinder valve plate. The cylinder valve plate has an L-shaped structure. A U-shaped groove is formed on the vertical surface of the cylinder valve plate. A crankshaft hole is fixed on the horizontal surface of the cylinder valve plate.

[0006] The verification tool includes a plug rod. A hand grip ball head is fixed on the top of the plug rod. A U-shaped groove verification block is radially fixed on the middle segment of the plug rod. The bottom end of the plug rod is coaxially inserted into the crankshaft hole with a gap.

[0007] Preferably, the radial free end of the U-shaped groove verification block is provided with a verification convex surface that fits the inner wall of the U-shaped groove.

[0008] Preferably, the U-shaped groove verification block includes a large-size verification block and a small-size verification block that are fixed symmetrically on the radial two sides of the plug rod. The horizontal width of the large-size verification block is greater than that of the small-size verification block. When verifying, the small-size verification block can be inserted into the U-shaped groove, while the large-size verification block cannot, which is considered as a verification pass.

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

[0010] The position verification tool for a cylinder body U-shaped groove and a crankshaft hole of the utility model is inserted into the crankshaft hole at the bottom end of the plug rod to position the U-shaped groove verification block radially relative to the crankshaft hole. When verifying, the small-size verification block can be inserted into the U-shaped groove, while the large-size verification block cannot, which is considered as a verification pass.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying 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 any creative effort on the basis of these drawings.

[0012] Fig. 1 It is a perspective view of the utility model (inspection attitude);

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

[0014] Fig. 3 It is a perspective view of the utility model in the plug rod;

[0015] In the figure: 1 - hand ball head; 2 - U-shaped groove inspection block; 3 - cylinder valve piece; 4 - crankshaft hole; 5 - U-shaped groove; 6 - plug rod; 7 - stepped rod; 8 - inspection convex surface. DETAILED DESCRIPTION

[0016] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying 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 accompanying 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", "connection" and "connection" 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 an 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 the specific circumstances.

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

[0019] In combination with Figs. 1-3 The utility model provides a kind of position of cylinder U-shaped groove and crankshaft hole, which is verified by the utility model, and the relative position of U-shaped groove 5 and crankshaft hole 4 on cylinder valve piece 3 is verified, wherein the cylinder valve piece is L-shaped structure, U-shaped groove is set on the vertical surface of cylinder valve piece, and crankshaft hole is fixed on the horizontal surface of cylinder valve piece;

[0020] The inspection tool includes an insertion rod 6. A hand-held ball head 1 is fixedly provided at the top of the insertion rod. A U-shaped groove inspection block 2 is radially fixedly provided in the middle section of the insertion rod. And the bottom end of the insertion rod is coaxially slid and inserted into the internal of the crankshaft hole with a clearance fit.

[0021] Preferably, a inspection convex surface 8 that fits on the inner wall of the arc surface of the U-shaped groove is made at the radial free end of the U-shaped groove inspection block.

[0022] Preferably, the U-shaped groove inspection block includes a large-size inspection block and a small-size inspection block that are symmetrically fixedly provided on both sides of the insertion rod in the radial direction. The horizontal width of the large-size inspection block is greater than that of the small-size inspection block. When inspecting, it is considered qualified if the small-size inspection block can be inserted into the U-shaped groove while the large-size inspection block cannot be inserted into the U-shaped groove.

[0023] In addition, preferably, a stepped rod is integrally made in the middle section of the insertion rod. The diameter of the stepped rod is greater than the diameter of the end of the insertion rod inserted into the crankshaft hole. When the lower part of the insertion rod is inserted into the crankshaft hole, if the position of the U-shaped groove is qualified, the U-shaped groove inspection block will move downward and insert into the internal of the U-shaped groove. At this time, the axial end face of the stepped rod overlaps the top opening of the crankshaft hole.

[0024] The working principle of the present utility model is as follows:

[0025] 1. The staff grasps the hand-held ball head to insert the free end of the insertion rod into the internal of the crankshaft hole from top to bottom (as Fig. 1 shown Fig. 2 );

[0026] 2. Rotate the hand-held ball head and press down the insertion rod. It is considered qualified if the small-size inspection block can be inserted into the U-shaped groove while the large-size inspection block cannot be inserted into the U-shaped groove. During the inspection process, the inspection convex surface at the radial end of the small-size inspection block is used to inspect the curvature radian of the U-shaped groove, and the large-size inspection block is used to inspect the groove width and groove depth of the U-shaped groove.

[0027] The above describes the present utility model and its implementation manners. This description is not restrictive. Only one of the implementation manners of the present utility model is shown in the drawings, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the creative concept of the present utility model, without creative design, structures and embodiments similar to this technical solution should all fall within the protection scope of the present utility model

Claims

1. A position gauge for cylinder U-shaped groove and crankshaft hole, which is used for checking the relative position of the cylinder valve plate U-shaped groove and the crankshaft hole, wherein the cylinder valve plate is L-shaped structure, the vertical surface of the cylinder valve plate is provided with the U-shaped groove, and the horizontal surface of the cylinder valve plate is fixed with the crankshaft hole; characterized in that The gauge comprises a plug rod, the top of the plug rod is fixed with a hand-held ball head, the middle section of the plug rod is radially fixed with a U-shaped groove checking block, and the bottom end of the plug rod is coaxially and clearance-fitted inserted into the crankshaft hole.

2. A position gauge for a cylinder U-slot and crank hole according to claim 1, characterized in that: The radial free end of the U-shaped groove checking block is provided with a checking convex surface which is fitted on the inner wall of the U-shaped groove arc surface.

3. A position gauge for a cylinder U-slot and crank hole according to claim 1, characterized in that: The U-shaped groove checking block comprises a large-size checking block and a small-size checking block which are fixed on the two sides of the plug rod in axial symmetry, wherein the horizontal width of the large-size checking block is larger than that of the small-size checking block, and when checking, the small-size checking block can be inserted into the U-shaped groove while the large-size checking block cannot, which is the checking qualified.

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