Novel cylinder cover LGI valve hole machining alignment tool

Abstract

The utility model relates to the field of alignment tools, and discloses a novel cylinder cover LGI valve hole machining alignment tool which comprises a positioning frame, an inserting groove is formed in the top end of the positioning frame, an oil spraying valve is connected to the top end of the inserting groove in an inserted mode, an alignment plug pin is arranged at the right end of the positioning frame, and a verification plug pin is arranged at the position, close to the bottom end, of the right end of the positioning frame. A connecting hole is formed in the right end of the oil injection valve, a verification hole is formed in the position, close to the bottom end, of the right end of the oil injection valve, an alignment plane is arranged at the top end of the positioning frame, a fixing groove is formed in the outer wall of the oil injection valve, and an extrusion block is fixedly connected to the left end of an alignment bolt. According to the oil injection valve detection device, the positioning frame is arranged, when the oil injection valve detection device is used, the oil injection valve can be directly inserted into the positioning frame, then the alignment plug pin can be inserted into the alignment groove to position the correct position of the oil injection valve, then the detection plug pin can be used for fixing the oil injection valve, and the whole oil injection valve detection device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of alignment tooling, and particularly to a novel alignment tooling for machining the LGI valve holes of a cylinder head. Background Art

[0002] Compared with traditional diesel engines, methanol marine engines are more efficient and more environmentally friendly.

[0003] Compared with the previous cylinder head products, the methanol dual-fuel main engine cylinder head has been further upgraded in terms of design and machining difficulty. The cylinder head is equipped with an LGI fuel injection valve, an LGI connection block, and an LGI monitoring flange, and new positioning holes and sealing surfaces with spatial angles are added to the structure. The position accuracy requirements are extremely high. Traditional tooling often has difficulty in inspecting the spatial angles during use, and often requires multiple adjustments to align the device. The overall device is inconvenient to use. Therefore, a novel alignment tooling for machining the LGI valve holes of a cylinder head is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a novel alignment tooling for machining the LGI valve holes of a cylinder head, aiming to improve the problem that "existing tooling is difficult to inspect the spatial angles of the engine fuel injection valve during use, and the overall device is inconvenient to use" in the existing technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A novel alignment tooling for machining the LGI valve holes of a cylinder head, including a positioning frame. A slot is provided at the top of the positioning frame, and a fuel injection valve is inserted into the top of the slot. A alignment pin is provided at the right end of the positioning frame, and a verification pin is provided at a position near the bottom end on the right end of the positioning frame. A connection hole is provided at the right end of the fuel injection valve, and a calibration hole is provided at a position near the bottom end on the right end of the fuel injection valve.

[0006] As a further description of the above technical scheme:

[0007] A alignment plane is provided at the top of the positioning frame, and a fixing groove is provided on the outer wall of the fuel injection valve.

[0008] As a further description of the above technical scheme:

[0009] A pressing block is fixedly connected to the left end of the alignment pin, and a calibration plane is provided on the outer wall of the fuel injection valve near the connection hole at the right end.

[0010] As a further description of the above technical scheme:

[0011] A alignment groove is provided at the right end of the positioning frame, the alignment pin is inserted into the inner wall of the alignment groove, and a positioning groove is provided at the left end of the alignment groove.

[0012] As a further description of the above technical solution:

[0013] A calibration groove is provided near the bottom end of the right end of the positioning frame, a calibration hole is provided at the bottom end of the fuel injection valve, the verification pin is inserted into the inner wall of the calibration groove, and the verification pin penetrates and is inserted into the inner wall of the calibration hole.

[0014] As a further description of the above technical solution:

[0015] A flange groove is provided at the bottom end of the alignment groove.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, by setting the positioning frame, when in use, the fuel injection valve can be directly inserted into the positioning frame, and then the alignment pin can be inserted into the alignment groove to position the correct position of the fuel injection valve, and then the inspection pin can be used to fix the fuel injection valve, and the overall device is more convenient to use.

[0018] 2. In the utility model, by setting the alignment groove, when the external hole groove of the fuel injection valve is processed, the LGI connection block can be inserted into the connection groove, and then the flange connection hole can be processed for the LGI connection block through the flange groove. The overall device can achieve multi-station positioning during use and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of the overall device in the utility model;

[0020] Figure 2 is a three-dimensional structure sectional schematic diagram of the positioning frame in the utility model;

[0021] Figure 3 is a three-dimensional structure schematic diagram of the fuel injection valve in the utility model.

[0022] LEGEND DESCRIPTION:

[0023] 1. Positioning frame; 11. Slot; 12. Alignment plane; 13. Calibration groove; 14. Alignment groove; 15. Positioning groove; 16. Flange groove; 2. Fuel injection valve; 21. Connection hole; 22. Calibration hole; 23. Fixed groove; 24. Calibration plane; 3. Alignment pin; 31. Extrusion block; 4. Verification pin. DETAILED DESCRIPTION OF THE INVENTION

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Referring to Figure 1 - Figure 3 , an embodiment provided by the present invention: a novel cylinder head LGI valve hole machining alignment tooling, including a positioning frame 1 for fixing the fuel injection valve 2. The top end of the positioning frame 1 is provided with a slot 11 for fixing the inclination angle of the fuel injection valve 2. The fuel injection valve 2 is inserted into the top end of the slot 11. The right end of the positioning frame 1 is provided with an alignment pin 3 for assisting the operator to position the rotation angle of the fuel injection valve 2. The right end of the positioning frame 1 near the bottom end is provided with a verification pin 4 for fixing the fuel injection valve 2. The right end of the fuel injection valve 2 is provided with a connection hole 21 for connecting the LGI connector. The right end of the fuel injection valve 2 near the bottom end is provided with a calibration hole 22 for accommodating the verification pin 4.

[0026] Referring to Figure 1 - Figure 3 , the top end of the positioning frame 1 is provided with an alignment plane 12 for supporting the fuel injection valve 2. The outer wall of the fuel injection valve 2 is provided with a fixing groove 23 for positioning the height of the fuel injection valve 2. By inserting the fuel injection valve 2 into the inside of the slot 11 and making the fixing groove 23 closely fit the alignment plane 12, the inclination angle and height of the fuel injection valve 2 can be determined. The left end of the alignment pin 3 is fixedly connected with a pressing block 31 for pressing the fuel injection valve 2. The outer wall of the right end of the fuel injection valve 2 near the connection hole 21 is provided with a calibration plane 24 for determining the orientation of the fuel injection valve 2. When the pressing block 31 fits the calibration plane 24, the orientation of the fuel injection valve 2 can be determined. The right end of the positioning frame 1 is provided with an alignment slot 14 for accommodating the alignment pin 3. The alignment pin 3 is inserted into the inner wall of the alignment slot 14. The left end of the alignment slot 14 is provided with a positioning slot 15 for positioning the alignment pin 3. When the left end of the alignment pin 3 fits the right end of the positioning slot 15, it means that the pressing block 31 has completely fit the calibration plane 24.

[0027] Referring to Figure 1 - Figure 3, a calibration slot 13 for accommodating the verification pin 4 is provided near the bottom end of the right end of the positioning frame 1, and a calibration hole 22 for accommodating the verification pin 4 is provided at the bottom end of the fuel injection valve 2. The verification pin 4 is inserted into the inner wall of the calibration slot 13, and the verification pin 4 penetrates and is inserted into the inner wall of the calibration hole 22. By using the verification pin 4 to penetrate the calibration slot 13 and the calibration hole 22, the fuel injection valve 2 can be fixed. A flange slot 16 for facilitating the subsequent processing of the LGI connection block is provided at the bottom end of the alignment slot 14. The fuel injection valve 2, the LGI connection block, and the LGI monitoring flange are all prior arts, so this case will not be described in detail due to the prior arts.

[0028] Working principle: When a hole needs to be opened on the outer wall of the fuel injection valve 2, the fuel injection valve 2 needs to be inserted into the inner part of the slot 11 until the alignment plane 12 is completely fitted with the fixing slot 23. At this time, the inclination angle of the fuel injection valve 2 will be determined. Subsequently, the alignment pin 3 can be inserted into the inner part of the alignment slot 14, and then the fuel injection valve 2 can be rotated. When the calibration plane 24 is fitted with the extrusion block 31, the connection hole 21 will just be fitted with the left end of the alignment slot 14. At this time, the left end of the alignment pin 3 will also just be fitted with the right end of the positioning slot 15. At this time, the verification pin 4 can be inserted into the calibration slot 13 and penetrate the calibration hole 22 to fix the fuel injection valve 2 inside the positioning frame 1. Subsequently, the fuel injection valve 2 can be further fixed by using a fixture. At this time, the fuel injection valve 2 will be fixed and unable to move. Then, the alignment pin 3 can be taken out, and the connection hole 21 at the right end of the fuel injection valve 2 can be processed in cooperation with a boring machine.

[0029] After the processing of the connection hole 21 is completed, the processing depth of the connection hole 21 can be inspected by inserting the verification pin 4 into the inner part of the connection hole 21. When the processing is qualified, the LGI connection block can be inserted into the inner part of the alignment slot 14, and the whole device can be tilted. Subsequently, a boring machine can be used to process the bottom end of the LGI connection block from the flange slot 16 to process a hole slot for connecting the LGI detection flange.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel cylinder head LGI valve hole machining and alignment tool, comprising a positioning frame (1), characterized in that: The top of the positioning frame (1) is provided with a slot (11), the top of the slot (11) is plugged with an injection valve (2), the right end of the positioning frame (1) is provided with an alignment pin (3), the right end of the positioning frame (1) is provided with a verification pin (4) near the bottom, the right end of the injection valve (2) is provided with a connection hole (21), and the right end of the injection valve (2) is provided with a verification hole (22) near the bottom.

2. A new cylinder head LGI valve hole machining and alignment tool according to claim 1, characterized in that: The top end of the positioning frame (1) is provided with an alignment plane (12), and the outer wall of the fuel injection valve (2) is provided with a fixing groove (23).

3. A new cylinder head LGI valve hole machining and alignment tool according to claim 2, characterized in that: The left end of the alignment pin (3) is fixedly connected to an extrusion block (31), and the right end of the fuel injection valve (2) is provided with a calibration plane (24) near the outer wall of the connecting hole (21).

4. The new cylinder head LGI valve hole machining and alignment tool according to claim 1 is characterized by: The right end of the positioning frame (1) is provided with an alignment groove (14), the alignment pin (3) is plugged into the inner wall of the alignment groove (14), and the left end of the alignment groove (14) is provided with a positioning groove (15).

5. The new cylinder head LGI valve hole machining and alignment tool according to claim 1 is characterized by: A verification groove (13) is provided at the right end of the positioning frame (1) near the bottom end, a verification hole (22) is provided at the bottom end of the fuel injection valve (2), the verification pin (4) is inserted into the inner wall of the verification groove (13), and the verification pin (4) passes through and is inserted into the inner wall of the verification hole (22).

6. A new cylinder head LGI valve hole machining and alignment tool according to claim 4, characterized in that: A flange groove (16) is provided at the bottom end of the alignment groove (14).

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