Detection device for oil inlet and outlet hole of oil injector body

Abstract

The utility model discloses a detection device for oil inlet and outlet holes of an oil injector body, which comprises a bottom plate, a left support, a front support and a right support are mounted on the bottom plate, and the left support is used for mounting an oil outlet hole detection assembly; the front support is arranged on the oil inlet hole side of the oil sprayer and used for installing the oil inlet hole detection assembly. The right support is arranged on the opposite side of the left support, and an axis positioning assembly used for supporting and positioning the oil sprayer is installed on the right support. By means of the detection device, the oil injector body can be fixed, and whether the position of the oil injector body is correct or not is judged by observing whether the bolt for measurement can be smoothly inserted into the oil inlet hole and the oil outlet hole or not. The method is simple, convenient and rapid to operate, not only greatly improves the working efficiency, but also reduces the skill requirements on employees, and is beneficial to realizing the automatic and intelligent upgrading of a production line. Meanwhile, manual operation links and equipment complexity are reduced, so that the stability and the reliability of a detection result are further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of production and manufacturing of fuel injector bodies, and in particular relates to a detection device for oil inlet and outlet holes of a fuel injector body. Background Art

[0002] The injector body is a key component in the internal combustion engine. The position accuracy of its oil inlet and outlet holes is directly related to the performance of the injector and the fuel injection effect. In the traditional production process of the injector body, the position accuracy detection of the oil inlet and outlet holes has always been a technical problem. Since the relationship between the oil inlet and outlet holes is a spatial angle, their positions are not easy to directly observe and detect.

[0003] In the past, in order to determine whether the position of the oil inlet and outlet holes is correct, a pin is usually inserted into each of the oil inlet and outlet holes, and then a three-dimensional coordinate measuring machine is used for precision measurement. By calculating the spatial coordinates of the pin, the position accuracy of the oil inlet and outlet holes can be indirectly determined. However, this detection method has many disadvantages.

[0004] First, this detection method is time-consuming because each measurement requires complex calculations and data processing. This not only reduces production efficiency, but also increases production costs. Secondly, this detection method requires high skills of employees, and requires professional three-coordinate measurement knowledge and operation experience. This limits the flexibility of the production line and the deployment of personnel to a certain extent. Finally, due to human factors and equipment errors in the measurement process, there may be a certain degree of uncertainty in the detection results, which affects the accuracy of product quality control.

[0005] Therefore, the traditional method of detecting the position of the oil inlet and outlet holes can no longer meet the requirements of modern injector production for high efficiency, high precision and easy operation. In order to solve this problem, it is urgent to develop a new detection device and method to simplify the operation process, improve the detection efficiency, and ensure the accuracy and reliability of the detection results. This is also the background and motivation for the present utility model.

[0006] Therefore, the utility model relates to a detection device for oil inlet and outlet holes of a fuel injector body. Utility Model Content

[0007] In view of the problems existing in the prior art, the utility model provides a detection device for the oil inlet and outlet holes of a fuel injector body.

[0008] The utility model is implemented as follows: a detection device for the oil inlet and outlet holes of a fuel injector body comprises a bottom plate, a left support, a front support and a right support are installed on the bottom plate, wherein the left support is arranged at the oil outlet hole side of the fuel injector, and is used to install an oil outlet hole detection component; the oil outlet hole detection component comprises an oil outlet hole detection pin, an oil outlet hole detection hole coaxial with the oil outlet hole is arranged on the left support corresponding to the oil outlet hole, the oil outlet hole detection pin is inserted in the oil outlet hole detection hole, and is used to detect whether the position of the oil outlet hole is accurate;

[0009] The front support is arranged at the oil inlet hole side of the injector body, and is used to install the oil inlet hole detection assembly; the oil inlet hole detection assembly includes an oil inlet hole detection pin, and an oil inlet hole detection hole coaxial with the oil inlet hole is arranged on the front support corresponding to the oil inlet hole, and the oil inlet hole detection pin is inserted in the oil inlet hole detection hole, and is used to detect whether the position of the oil inlet hole is accurate;

[0010] The right support is arranged on the opposite side of the left support, and an axis positioning component for supporting and positioning the injector body is installed on the right support.

[0011] Preferably, the oil outlet hole detection assembly further comprises a positioning pin arranged on the left support along the circumferential direction for circumferential positioning of the injector body.

[0012] Preferably, the oil outlet hole detection pin and the oil inlet hole detection pin both include a holding portion, a guide portion and a detection portion located at the end of an integrated structure.

[0013] Preferably, the axial positioning assembly includes a positioning core shaft, the right support is provided with a positioning hole coaxial with the center hole of the injector body, the positioning core shaft is inserted into the positioning hole, and the positioning shaft at the end of the positioning core shaft cooperates with the large end hole of the injector to achieve support and positioning of the injector.

[0014] Preferably, a long groove with closed ends is provided on the positioning core shaft, and a set screw is installed on the right support corresponding to the long groove. The set screw is inserted into the long groove to prevent the positioning core shaft from detaching from the right support.

[0015] Preferably, on the right side of the right support, a pressure plate is rotatably installed below the positioning core shaft through a rotating shaft, and a tightening screw hole is provided on the pressure plate, and the axis of the center of the tightening screw hole is located on the same straight line as the axis of the positioning hole.

[0016] The utility model has the advantages and technical effects: the injector body can be fixed by the detection device of the utility model, and the position can be judged whether it is correct by observing whether the measuring pin can be smoothly inserted into the oil inlet and outlet holes. This method is simple and fast to operate, which not only greatly improves work efficiency, but also reduces the skill requirements for employees, and is conducive to the automation and intelligent upgrading of the production line. At the same time, due to the reduction of manual operation links and equipment complexity, the stability and reliability of the detection results are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 yes Figure 1 A top view of

[0019] Figure 3 yes Figure 1 Middle AA section view.

[0020] In the figure: 1. bottom plate; 2. left support; 2-1. left support positioning surface; 2-2. left support guide hole; 3. positioning pin; 4. oil outlet detection pin; 4-1. oil outlet detection pin detection part; 4-2. oil outlet detection pin guide part; 5. positioning mandrel; 5-1. positioning mandrel long groove; 5-2. positioning mandrel large end face; 5-3. positioning mandrel cylindrical surface; 6. set screw; 7. right support; 7-1. right support positioning hole; 8. pressure plate; 9. clamping screw; 12. front support; 12-1. front support guide hole; 13. oil inlet detection pin; 13-1. oil inlet detection pin detection part; 13-2. oil inlet detection pin guide part; 14. injector body; 14-1. oil outlet; 14-2. oil inlet. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0022] See also Figures 1 to 3, a detection device for the oil inlet and outlet holes of a fuel injector body, comprising a base plate, on which a left support 2, a front support 12 and a right support 7 are installed, these components constitute the basic structure of the detection device, provide stable and reliable support, and ensure the accuracy and stability of the detection process; wherein the left support is arranged on the side of the oil outlet hole 14-1 of the fuel injector body 14, and is used to install an oil outlet hole detection component A; the oil outlet hole detection component includes an oil outlet hole detection pin 4, and an oil outlet hole detection hole 2-2 coaxial with the oil outlet hole is arranged on the left support corresponding to the oil outlet hole, and the oil outlet hole detection pin 4 is provided ... The pin is inserted into the oil outlet hole detection hole to detect whether the position of the oil outlet hole is accurate; the front support is set on the side of the oil inlet hole 14-2 of the injector body, and is used to install the oil inlet hole detection component B; the oil inlet hole detection component includes an oil inlet hole detection pin 13, and the front support is provided with an oil inlet hole detection hole 12-1 coaxial with the oil inlet hole corresponding to the oil inlet hole, and the oil inlet hole detection pin is inserted into the oil inlet hole detection hole to detect whether the position of the oil inlet hole is accurate; the oil outlet hole detection component and the oil inlet hole detection component can accurately detect the position of the oil inlet and outlet holes of the injector. Through the cooperation of the detection pin and the detection hole, it is possible to intuitively judge whether the position of the oil inlet and outlet holes is accurate, which improves the intuitiveness and accuracy of the detection.

[0023] The right support is set on the opposite side of the left support. The right support is equipped with an axis positioning component C for supporting and positioning the injector body. The component achieves accurate support and positioning of the injector body through the cooperation of the positioning mandrel and the center hole of the injector body. This ensures that the position of the injector body is fixed during the detection process, further improving the accuracy and reliability of the detection.

[0024] Preferably, the oil outlet detection assembly further includes a positioning pin 3 arranged on the left support along the circumferential direction for circumferential positioning of the injector body. The positioning pin is arranged on the left support along the circumferential direction for circumferential positioning of the injector body. The front end of the positioning pin 3 is made into a spherical shape, which facilitates the small pin 3 to be inserted into the positioning hole at the small end of the injector body. This ensures the stability of the injector body during the detection process, prevents it from rotating or moving, and thus improves the accuracy of the detection.

[0025] Preferably, the oil outlet detection pin 4 and the oil inlet detection pin 13 both include a holding portion, a guide portion, and a detection portion (4-1, 13-1) located at the end of the integrated structure, and the design of the detection pin makes the detection process simpler and faster. The holding portion of the integrated structure is convenient for the operator to hold, the guide portion ensures that the detection pin can be accurately inserted into the detection hole, and the detection portion is used to directly detect the position of the oil inlet and outlet holes.

[0026] Preferably, the axis positioning assembly C includes a positioning mandrel 5, a positioning hole 7-1 coaxial with the center hole of the injector body is provided on the right support, the positioning mandrel 5 is inserted into the positioning hole 7-1, and the positioning shaft 5-3 at the end of the positioning mandrel 5 cooperates with the large end hole of the injector body to support and position the injector body. The front of the cylindrical surface 5-3 of the positioning mandrel 5 has a 1.5×15° chamfer to facilitate the insertion of the cylindrical surface 5-3 into the hole at the large end of the injector body.

[0027] Preferably, the positioning core shaft 5 is provided with a long groove 5-1 with closed ends, and a locking screw 6 is installed on the right support corresponding to the long groove. The locking screw is inserted into the long groove to prevent the positioning core shaft from detaching from the right support. The coordinated use of the long groove and the locking screw effectively prevents the positioning core shaft from detaching from the right support, thereby enhancing the safety and stability of the detection device.

[0028] Preferably, on the right side of the right support, a pressing plate 8 is installed below the positioning mandrel by rotating the rotating shaft, and a tightening screw hole is provided on the pressing plate. The axis of the center of the tightening screw hole is on the same straight line as the axis of the positioning hole, and a tightening screw is screwed in the tightening screw hole; the pressing plate is installed on the right support by rotating the rotating shaft, and the position can be easily adjusted. The design of the tightening screw hole enables the pressing plate to tightly press the injector body, ensuring its stability during the detection process. This design not only improves the accuracy of the detection, but also makes the operation process more convenient.

[0029] During the inspection, the pressure plate 8 is first turned to a horizontal position, the positioning core shaft 5 is moved to the right for a distance, and then the two pin holes on the small end face of the injector body are inserted into the positioning pin 3, and the small end face of the injector body is attached to the positioning surface 2-1 of the left support 2. The positioning core shaft 5 is moved to the left, so that the positioning shaft 5-3 is inserted into the large end hole of the injector body, and the large end face 5-2 is attached to the right end face of the injector body. The pressure plate 8 is turned to a vertical position, and the clamping screw 9 is tightened to make the left end of the injector body close to the positioning surface 2-1 of the left support 2. Insert the guide part 4-2 of the oil outlet plug into the guide hole 2-2 of the left support 2. If the measuring part 4-1 of the oil outlet plug 4 can be smoothly inserted into the oil outlet hole of the injector body, it means that the position of the oil inlet hole is correct, otherwise it is incorrect. Insert the oil inlet plug guide portion 13-2 into the guide hole 12-1 of the front support 12. If the measuring portion 13-1 of the oil inlet plug 13 can be smoothly inserted into the oil inlet hole of the injector body, it means that the position of the oil inlet hole is correct, otherwise it is incorrect.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for the oil inlet and outlet holes of a fuel injector body, characterized in that: It comprises a bottom plate, on which a left support, a front support and a right support are installed, wherein the left support is arranged at the oil outlet hole side of the injector body, and is used to install an oil outlet hole detection assembly; the oil outlet hole detection assembly comprises an oil outlet hole detection pin, and an oil outlet hole detection hole coaxial with the oil outlet hole is arranged on the left support corresponding to the oil outlet hole, and the oil outlet hole detection pin is inserted in the oil outlet hole detection hole, and is used to detect whether the position of the oil outlet hole is accurate; The front support is arranged at the oil inlet hole side of the injector body, and is used to install the oil inlet hole detection assembly; the oil inlet hole detection assembly includes an oil inlet hole detection pin, and an oil inlet hole detection hole coaxial with the oil inlet hole is arranged on the front support corresponding to the oil inlet hole, and the oil inlet hole detection pin is inserted in the oil inlet hole detection hole, and is used to detect whether the position of the oil inlet hole is accurate; The right support is arranged on the opposite side of the left support, and an axis positioning component for supporting and positioning the injector body is installed on the right support.

2. The detection device for the oil inlet and outlet holes of the injector body according to claim 1, characterized in that: The oil outlet hole detection assembly also includes a positioning pin arranged on the left support along the circumferential direction for circumferential positioning of the injector.

3. The detection device for the oil inlet and outlet holes of the injector body according to claim 1, characterized in that: The oil outlet hole detection pin and the oil inlet hole detection pin both include a holding portion, a guide portion and a detection portion located at the end of an integrated structure.

4. The detection device for the oil inlet and outlet holes of the injector body according to claim 1, characterized in that: The axis positioning component includes a positioning core shaft. The right support is provided with a positioning hole coaxial with the center hole of the injector. The positioning core shaft is inserted into the positioning hole. The positioning shaft at the end of the positioning core shaft cooperates with the large end hole of the injector to achieve support and positioning of the injector.

5. The detection device for the oil inlet and outlet holes of the injector body according to claim 4, characterized in that: The positioning mandrel is provided with a long groove with closed ends, and a set screw is installed on the right support corresponding to the long groove. The set screw is inserted into the long groove to prevent the positioning mandrel from detaching from the right support.

6. The detection device for the oil inlet and outlet holes of the injector body according to claim 1, characterized in that: On the right side of the right support, a pressure plate is rotatably installed below the positioning core shaft through a rotating shaft, and a tightening screw hole is provided on the pressure plate. The axis of the center of the tightening screw hole is located on the same straight line as the axis of the positioning hole, and a tightening screw is threaded in the tightening screw hole.

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