Engine cylinder head testing fixture

Abstract

The utility model relates to an engine cylinder head testing fixture, which comprises a main frame, a bottom plate, a cylinder, a pressure head and a control device and is provided with a standard measuring rod, the cylinder head and a camshaft seat are positioned and fastened through air pressure, and a camshaft hole is measured by using the measuring rod. The measurement mode is simple in operation and accurate in measurement, can effectively control the precision of the cylinder head cam shaft hole, and solves the problems of abrasion and clamping of the cam shaft, noise of the cylinder head and the like.

Description

Technical Field

[0001] This utility model belongs to the field of engine component technology, specifically relating to an engine cylinder head inspection tool. Background Technology

[0002] The engine cylinder head is a crucial component of the engine. After the camshaft bearing is installed on the cylinder head, it forms the camshaft bore. The camshaft bore size is a critical dimension of the cylinder head component; any deviation from this tolerance will cause problems such as camshaft wear and seizing, and cylinder head noise. Because the camshaft bore size is a spatial dimension, it cannot be measured using conventional methods. Using coordinate measuring machines (CMMs) is not only inefficient and limits the number of samples that can be inspected, but also expensive. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides an engine cylinder head inspection tool that is simple to operate, accurate in measurement, and highly efficient.

[0004] Technical solution

[0005] The purpose of this utility model is achieved as follows: an engine cylinder head inspection tool includes a main frame, a base plate, a cylinder, a pressure head, and a control device, characterized in that: the main frame is provided with a cylinder mounting hole, a control device mounting position, and a screw mounting hole; the pressure head is provided with a screw mounting hole and a cylinder push rod; the main frame is mounted on the base plate, the cylinder is mounted on the cylinder mounting hole of the main frame, the control device is mounted on the control device mounting position, the pressure head is mounted on the screw mounting hole of the main frame through a screw, and the cylinder push rod is connected to the cylinder.

[0006] The engine cylinder head inspection tool is characterized in that: the pressure head is provided with a positioning groove.

[0007] The engine cylinder head inspection tool is characterized in that: a positioning boss is provided on the base plate.

[0008] The engine cylinder head inspection tool is characterized in that: the control device is provided with a control lever, an air inlet one, an air inlet two, and an air outlet.

[0009] The engine cylinder head inspection tool is characterized in that the cylinder is provided with an air inlet and an air outlet.

[0010] The engine cylinder head inspection tool is characterized in that: the air outlet of the control device is connected to the air inlet of the cylinder through an air pipe, and the second air inlet of the control device is connected to the air outlet of the cylinder through an air pipe.

[0011] The engine cylinder head inspection tool is characterized by the following steps: When inspecting the cylinder head camshaft bore size, the cylinder head and camshaft seat are placed together on the base plate and positioned by the positioning boss on the base plate. The control lever of the control device is pushed inward, allowing air to enter through the air inlet of the control device. The gas enters the cylinder through the air pipe, pushing the cylinder push rod downward and transmitting pressure to the pressure head, thereby pressing the camshaft seat tightly onto the cylinder head. At this point, a measuring rod is inserted into the cylinder head camshaft bore; if it rotates freely, the cylinder head camshaft bore inspection is qualified. The measuring rod is removed, and the control lever of the control device is pushed in the opposite direction. The cylinder push rod drives the pressure head upward, and the cylinder head is removed, thus completing the cylinder head camshaft bore inspection.

[0012] This utility model engine cylinder head inspection tool is equipped with a standard measuring bar. It uses air pressure to position and tighten the cylinder head and camshaft seat, and then uses the measuring bar to measure the camshaft bore. This measurement method is simple to operate, accurate, and can effectively control the precision of the cylinder head camshaft bore, solving problems such as camshaft wear and jamming, and cylinder head noise. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is the front view of the novel engine cylinder head inspection tool.

[0015] Figure 2 This is a schematic diagram of the operation of the novel engine cylinder head inspection tool. Detailed Implementation

[0016] Referring to the attached drawings, an engine cylinder head inspection tool includes a main frame (1), a base plate (2), a cylinder (3), a pressure head (4), and a control device (5). The main frame (1) is provided with a cylinder mounting hole, a control device mounting position, and a screw mounting hole. The pressure head (4) is provided with a screw mounting hole and a cylinder push rod (41). The main frame (1) is mounted on the base plate (2), the cylinder (3) is mounted on the cylinder mounting hole of the main frame (1), the control device (5) is mounted on the control device mounting position, the pressure head (4) is mounted on the screw mounting hole of the main frame (1) through a screw (42), and the cylinder push rod (41) is connected to the cylinder (3).

[0017] The pressure head (4) is provided with a positioning groove (43).

[0018] The base plate (2) is provided with a positioning boss (21).

[0019] The control device (5) is equipped with a control lever (51), an air inlet 1 (52), an air inlet 2 (53), and an air outlet (54).

[0020] The cylinder (3) is provided with an air inlet (31) and an air outlet (32).

[0021] The air outlet (54) of the control device (5) is connected to the air inlet (31) of the cylinder (3) through an air pipe, and the second air inlet (53) of the control device (5) is connected to the air outlet (32) of the cylinder (3) through an air pipe.

[0022] When inspecting the cylinder head camshaft hole size, the cylinder head (8) and camshaft seat (7) are placed together on the base plate (2) and positioned by the positioning boss (21) of the base plate (2). The control lever (51) of the control device (5) is pushed inward, and air enters through the air inlet (52) of the control device (5). The gas enters the cylinder (3) through the air pipe, pushing the cylinder push rod (41) downward and transmitting pressure to the pressure head (4), thereby pressing the camshaft seat (7) onto the cylinder head (8). At this time, the measuring rod (6) is inserted into the cylinder head camshaft hole. It rotates flexibly, and the camshaft hole of the cylinder head (8) is qualified. The measuring rod is removed, and the control lever (51) of the control device (5) is pushed in the opposite direction. The cylinder push rod (41) drives the pressure head (4) to rise. The cylinder head is removed, and the inspection of the cylinder head camshaft hole is completed.

[0023] The cylinder head and camshaft housing are positioned and tightened using air pressure, and the camshaft bore is measured using a measuring rod. This measurement method is simple to operate, accurate, and can effectively control the precision of the cylinder head and camshaft bore, solving problems such as camshaft wear and jamming, and cylinder head noise.

[0024] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the structure of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An engine cylinder head testing device comprising a main frame, a base plate, a cylinder, a pressure head, a control device, characterized in that: The main frame is provided with a cylinder mounting hole, a control device mounting position and a screw rod mounting hole; the pressing head is provided with a screw rod mounting hole and a cylinder push rod; the main frame is mounted on the bottom plate, the cylinder is mounted on the cylinder mounting hole of the main frame, the control device is mounted on the control device mounting position, the pressing head is mounted on the screw rod mounting hole of the main frame through the screw rod, and the cylinder push rod is connected with the cylinder.

2. The engine head testing fixture of claim 1, wherein: The pressing head is provided with a positioning groove.

3. The engine cylinder head testing fixture of claim 1 wherein: The bottom plate is provided with a positioning boss.

4. The engine cylinder head testing fixture of claim 1 wherein: The control device is provided with a control rod, an air inlet one, an air inlet two and an air outlet.

5. The engine cylinder head testing fixture of claim 1 wherein: The cylinder is provided with an air inlet and an air outlet.

6. The engine cylinder head tester of claim 1 wherein: The air outlet of the control device is connected with the air inlet of the cylinder through an air pipe, and the air inlet two of the control device is connected with the air outlet of the cylinder through an air pipe.

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