CN204301665U - Axiality detection device - Google Patents

Abstract

The utility model relates to a detection device for coaxiality of a pressure head of a cylinder cover conduit press-fitting device relative to a conduit hole on a cylinder cover. It includes a measuring rod, wherein one end of the measuring rod is plugged with the connecting sleeve A of the press-fitting equipment. Use one end of the measuring rod to place the rod head in the connecting sleeve A of the press-fitting equipment, and the other end to extend to the conduit hole to simulate the pressure head and place it on the conduit hole, so that the coaxiality deviation between the measuring rod and the conduit hole can be visually observed , to judge whether the concentricity of the indenter to the catheter hole is out of tolerance.

Description

Coaxiality detection device

technical field

The utility model relates to the press-fitting of an engine cylinder cover conduit, in particular to a coaxiality detection device for a pressure head of a cylinder cover conduit press-fitting device relative to a conduit hole on the cylinder cover.

Background technique

During the press-fitting process of the pressure head of the engine cylinder head conduit press-fitting equipment, the pressure head is offset due to repeated impact and wear, resulting in a deviation between the pressure head and the conduit hole on the cylinder head. If the deviation is too large, it exceeds the pressure If the maximum concentricity allowed by the conduit hole on the head and the cylinder head is exceeded, the concentricity will be out of tolerance. Excessive concentricity will lead to the deflection of the conduit, and even the trimming of the conduit hole during the press-fitting process, which will have a negative impact on the quality of the cylinder head.

Contents of the invention

The purpose of this utility model is to provide a detection device for the concentricity of the pressure head relative to the conduit hole of the cylinder head conduit press-fitting equipment. Through the regular detection of the device, it is possible to prevent the occurrence of excessive concentricity between the pressure head and the conduit hole.

In order to achieve the above purpose, the technical solution adopted by the device of the utility model is: a coaxiality detection device, including a measuring rod, wherein one end of the measuring rod is plugged with the connecting sleeve A of the press-fitting equipment.

The beneficial effect of the utility model is that one end of the measuring rod is placed in the connection sleeve A of the press-fitting equipment, and the other end is extended to the conduit hole to simulate the indenter to be placed in the conduit hole, so that the measuring rod and the measuring rod can be directly observed. Concentricity deviation of the conduit hole, to judge whether the concentricity of the indenter to the conduit hole is out of tolerance.

Description of drawings

Fig. 1 is the schematic plan view of engine cylinder head;

Fig. 2 is the schematic diagram that the device does not detect the coaxiality out-of-tolerance;

Fig. 3 is a schematic diagram of the device detecting out-of-tolerance coaxiality.

Detailed ways

A coaxiality detection device includes a measuring rod 10, wherein one end of the measuring rod 10 is inserted into a connecting sleeve A of a press-fitting device.

Referring to Fig. 1, it is necessary to punch the conduit C into the conduit hole B along the direction of the arrow on the engine cylinder head. The actual operation is accomplished by the indenter connected to the connecting sleeve A of the press-fitting equipment. Referring to Figures 2 and 3, one end of the measuring rod 10 used in this device is placed in the connection sleeve A of the press-fitting equipment, and the other end is extended to the conduit hole B to simulate the pressure head to be placed on the conduit hole B, so that it can be observed intuitively. To measure the coaxiality deviation between the rod 10 and the conduit hole B, judge whether the concentricity of the indenter relative to the conduit hole B is out of tolerance.

The detection device also includes a measuring seat 20, and a measuring hole 21 and a positioning hole 22 are opened on the measuring seat 20. The measuring hole 21 is consistent with the shape, position and size of the conduit hole B on the cylinder head. The measuring seat 20 here can be the engine cylinder head itself, and also can be a self-made simple auxiliary device, but we prefer the auxiliary device in order to make the detection easy. Measuring hole 21 is set on measuring seat 20 to simulate conduit hole B, and the adjustment of measuring seat 20 is realized through the cooperation of positioning hole 22 with the positioning block on the workbench, so that the working position to be pressed from measuring hole 21 to conduit C is detected.

Preferably, the measuring rod 10 is a telescopic rod that is inserted into each other, and includes an upper rod 11 that is plugged into the connection sleeve A of the press-fitting equipment and a lower rod 12 that is intended to be inserted into the measuring hole 21 . In this way, the measuring rod 10 stretches and extends to the conduit hole B, so that the measuring rod 10 can be used for detection without starting the pressing equipment to drive the connecting sleeve A to press down.

Preferably, the head of the lower rod 12 is cone-shaped or ball-shaped. Such a rod head facilitates the guiding of the measuring rod 10 to be placed at the measuring hole 21 .

Claims (4)

1. A coaxiality detection device, characterized in that: it comprises a measuring rod (10), wherein one end of the measuring rod (10) is plugged with the connecting sleeve A of the press-fitting equipment. 2. The coaxiality detection device according to claim 1, characterized in that: the detection device also includes a measuring seat (20), and a measuring hole (21) and a positioning hole (22) are provided on the measuring seat (20), so that The shape, position and size of the measuring hole (21) and the conduit hole B on the cylinder head are consistent. 3. The coaxiality detection device according to claim 1, characterized in that: the measuring rod (10) is a telescopic rod that is inserted into each other, and it includes an upper rod that is plugged into the connecting sleeve A of the press-fitting equipment (11) and the lower rod (12) intended to be inserted into the measuring hole (21). 4. The coaxiality detection device according to claim 3, characterized in that: the head of the lower rod (12) is in the shape of a cone or a ball.