Tool for testing positions of bottom claw threaded hole and crankshaft hole of cylinder block valve plate

Abstract

The utility model discloses a cylinder body valve plate bottom claw threaded hole and crankshaft hole position testing tool, the middle part of the cylinder body valve plate tested by the testing tool is provided with a crankshaft hole, and the bottom surfaces of the two sides of the cylinder body valve plate are provided with bottom claw threaded holes in midspan symmetry; the testing tool is used for testing the axis parallelism and pitch of the crankshaft hole and the bottom claw threaded hole; the testing tool comprises a parallel support, a fixed pin shaft and a telescopic testing rod, the middle part of the parallel support is fixedly provided with the fixed pin shaft which is axially inserted into the crankshaft hole in a sliding manner, and the two sides of the parallel support horizontally span the middle and are vertically connected with the telescopic testing rod positioned in the bottom claw threaded hole in a sliding and guiding manner. The inspection tool inspects the hole positions, the spacing and the aperture of the crankshaft hole and the threaded holes of the bottom claws on the two sides of the crankshaft hole and the axis parallelism of the three holes in a sliding insertion mode, 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 cylinder valve piece bottom claw thread hole and crankshaft hole position gauge. 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 a certain size from a middle hole to a side, 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 cylinder valve piece bottom claw thread hole and crankshaft hole position gauge. The gauge inspects the hole position, distance, hole diameter and axial parallelism of the crankshaft hole and the thread holes on both sides of the bottom claw through a sliding insertion method, and has a simple structure and is easy to implement.

[0005] To solve the above problems, the utility model provides a cylinder valve piece bottom claw thread hole and crankshaft hole position gauge. The middle part of the cylinder valve piece inspected by the gauge is provided with a crankshaft hole, and the bottom surfaces on both sides of the cylinder valve piece are provided with symmetrically arranged bottom claw thread holes. The gauge inspects the axial parallelism and distance of the crankshaft hole and the bottom claw thread holes. The gauge includes a parallel support, a fixed pin shaft and an extension inspection rod. The middle part of the parallel support is fixedly provided with the fixed pin shaft which is axially slidably inserted into the crankshaft hole. The extension inspection rod is vertically and slidably guided and connected to the bottom claw thread holes across the middle part of the parallel support.

[0006] Preferably, the parallel support includes two fixed plates which are spaced apart and arranged in parallel, and a plurality of sleeves are fixedly supported between the two fixed plates.

[0007] Preferably, the extension inspection rod includes a lifting rod and a guide pipe. The guide pipe is fixedly inserted into one of the fixed plates, and the lifting rod is slidably inserted into the other fixed plate. The top end of the lifting rod is coaxially inserted into the bottom claw thread hole. The middle part of the lifting rod is axially slidably and elastically limitingly connected to the sleeve, and the bottom part of the lifting rod is coaxially slidably and guidingly inserted into the guide pipe.

[0008] Preferably, the bottom end of the fixed pin shaft is coaxially fixedly provided with a positioning seat, and the diameter of the positioning seat is greater than the diameter of the fixed pin shaft. When the cylinder valve piece is sleeved on the fixed pin shaft and performs a downward sliding action to the limit position, the bottom end of the cylinder valve piece contacts the top surface of the axial end of the positioning seat, and the inspection is qualified.

[0009] The advantages of this utility model compared with the prior art are as follows:

[0010] This utility model discloses a tool for verifying the position of the bottom claw threaded hole and crankshaft hole of a cylinder valve plate. The main body is supported by a parallel support. The parallel support is slidably positioned by a fixed pin to ensure the coaxiality of the crankshaft hole in the cylinder valve plate. The parallel support, sleeve, and guide tube all provide coaxial sliding constraints for the lifting rod. Since the lifting rod is radially constrained, if the crankshaft hole is not parallel to the axis of the bottom claw threaded hole on both sides, the cylinder valve plate cannot slide to the positioning seat at the root of the fixed pin. Therefore, this utility model considers the bottom end of the cylinder valve plate to contact the top surface of the positioning seat shaft as a qualified inspection. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention (inspection posture);

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention (not in an inspection posture);

[0014] Figure 3 This is a side view of the present invention (inspecting the high-position posture);

[0015] Figure 4 This is a side view of the present invention (checking the low-position posture);

[0016] Figure 5 This is a cross-sectional view of the telescopic test rod in this utility model (for inspecting high-position posture);

[0017] Figure 6 This is a cross-sectional view of the telescopic test rod in this utility model (for inspecting the low-position posture);

[0018] In the diagram: 1-parallel support; 2-fixed pin; 3-cylinder valve plate; 4-telescopic rod; 5-positioning seat; 6-lifting rod; 7-sleeve; 8-guide tube; 9-support ring; 10-reset spring. Detailed Implementation

[0019] Embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having 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 should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; 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 will be described in further detail below in combination with the drawings.

[0022] In combination Figures 1-6 The utility model provides a kind of cylinder valve piece bottom claw threaded hole and crankshaft hole position testing tool, crankshaft hole is set in the middle of cylinder valve piece 3 tested by testing tool, and bottom claw threaded hole is set in the bottom surface of both sides of cylinder valve piece across middle symmetry;Testing tool tests the axial parallelism and hole distance of crankshaft hole and bottom claw threaded hole;Testing tool includes parallel support 1, fixed pin 2 and telescopic test rod 4, wherein the middle part of parallel support is fixed with fixed pin, which is axially slidingly inserted into crankshaft hole, and telescopic test rod is positioned in bottom claw threaded hole by being connected and guided vertically slidingly across the middle of both sides of parallel support.

[0023] Preferably, the parallel support includes two fixed plates arranged in parallel and spaced apart, and a plurality of sleeves 7 are fixedly supported between the two fixed plates.

[0024] Preferably, the telescopic test rod includes a lifting rod 6 and a guide tube 8;The guide tube is fixedly inserted on one of the fixed plates, and the lifting rod is slidingly inserted through the other fixed plate;The top end of the lifting rod is coaxially inserted into the bottom claw threaded hole, the middle part of the lifting rod is axially slidingly and elastically positionally connected in the sleeve, and the bottom part of the lifting rod is coaxially slidingly and guidingly inserted into the guide tube.

[0025] Preferably, the middle part of the lifting rod is coaxially fixed with a supporting ring 9, and the middle part of the lifting rod is sleeved with a return spring 10;One end of the return spring is elastically supported on the axial end face of the supporting ring, and the other end of the return spring is elastically supported on the inner wall of the axial end of the sleeve, and the return spring provides an elastic upward supporting force for the lifting rod.

[0026] Preferably, the bottom end of the fixed pin shaft is coaxially provided with a positioning seat, the diameter of the positioning seat is greater than the diameter of the fixed pin shaft, and when the cylinder valve piece is sleeved on the fixed pin shaft and performs a downward sliding action to the limit position, the bottom end of the cylinder valve piece contacts the axial end top surface of the positioning seat to be inspected.

[0027] The working principle of the utility model is as follows:

[0028] The utility model discloses a kind of cylinder valve piece bottom pawl threaded hole and crank hole position verification tools, and the inspection process is as follows:

[0029] 1, the crank hole in the middle of cylinder valve piece is coaxially sleeved to fixed pin shaft, wherein the inner wall of crank hole and the circumferential outer wall of fixed pin shaft are sliding clearance fit;

[0030] 2, with fixed pin shaft as axis horizontal rotation cylinder valve piece, make the pawl threaded hole of symmetry on both sides of crank hole across middle respectively aim at telescopic verification rod;

[0031] 3, manually press down cylinder valve piece, during press down process, crank hole hole wall is downward relative to fixed pin shaft (such as shown in Fig. Figure 4 The top of lifting rod is inserted in the bottom of pawl threaded hole, and lifting rod is elastically downward, and during downward process, it is radially constrained by parallel support, sleeve and guide pipe. With the bottom surface of cylinder valve piece downward adhering to the top surface of positioning seat to be inspected.

[0032] The utility model and its implementation mode are described above, and this description is not restrictive, and the embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In short, if the ordinary skilled in the art is inspired, without departing from the creative purpose of the utility model, without creative design, similar structure mode and embodiment to the technical scheme, all should belong to the protection scope of the utility model.

Claims

1. A tool for verifying the position of the bottom claw threaded hole and crankshaft hole of a cylinder block valve plate, wherein the cylinder block valve plate being verified has a crankshaft hole in the middle and bottom claw threaded holes symmetrically spaced across the bottom surfaces on both sides of the cylinder block valve plate; characterized in that: The utility model discloses a parallelism and hole distance of the crankshaft hole and the bottom claw threaded hole are verified, and the utility model discloses a parallel support, a fixed pin shaft and a telescopic test rod are included, wherein the middle part of the parallel support is fixed with the fixed pin shaft that is axially slidingly inserted in the crankshaft hole, and the telescopic test rod is positioned in the bottom claw threaded hole and is vertically slidingly guided and connected on both sides of the parallel support.

2. A cylinder valve plate bottom dog threaded hole and crank hole position gage according to claim 1, characterized in that: The parallel support includes two fixed plates arranged in parallel and spaced apart, and a plurality of sleeves are fixedly supported between the two fixed plates.

3. A cylinder valve plate bottom dog threaded hole and crank hole position gage as described in claim 2 wherein: The telescopic test rod includes a lifting rod and a guide tube, one of the fixed plates is fixedly inserted with the guide tube, and the lifting rod is slidingly penetrated and inserted on the other fixed plate, the top end of the lifting rod is coaxially inserted in the bottom claw threaded hole, the middle part of the lifting rod is axially slidingly and elastically positionally connected in the sleeve, and the bottom part of the lifting rod is coaxially slidingly and guidingly inserted in the guide tube.

4. A cylinder valve plate bottom dog threaded hole and crank hole position gage as described in claim 3 wherein: The middle part of the lifting rod is coaxially fixed with a supporting ring, and the middle part of the lifting rod is sleeved with a reset spring, one end of the reset spring is elastically supported on the axial end face of the supporting ring, the other end of the reset spring is elastically supported on the axial end inner wall of the sleeve, and the reset spring provides an elastic upward supporting force for the lifting rod.

5. The cylinder block valve plate bottom claw threaded hole and crankshaft hole position verification tool according to claim 1, characterized in that: The bottom end of the fixed pin shaft is coaxially fixed with a positioning seat, the diameter of the positioning seat is larger than the diameter of the fixed pin shaft, and when the cylinder valve sheet is sleeved on the fixed pin shaft and performs a downward sliding action to the limit position, the bottom end of the cylinder valve sheet contacts the axial end top surface of the positioning seat, and the verification is qualified.

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