Drilling tool for long oil duct hole of valve bridge

Abstract

The utility model relates to the field of valve bridge machining, and discloses a drilling tool for a long oil duct hole of a valve bridge. Comprising a supporting side plate, a positioning top plate mounted on the supporting side plate, a mounting side plate movably connected to the supporting side plate, an adjusting assembly mounted on the mounting side plate and a positioning assembly in threaded connection to the adjusting assembly, and the positioning assembly is used for fixing a valve bridge. The adjusting assembly comprises two supporting plates installed on the installation side plates. The tool has the following advantages and effects that the supporting plate supports the two-way screw, then the rotating handle drives the two-way screw to rotate, the positioning bolts are in threaded connection with the outer portion of the two-way screw, the two positioning bolts are close to or away from each other on the mounting side plate, valve bridges of different sizes can penetrate through the two positioning bolts, and the valve bridges of different sizes can be mounted on the mounting side plate. And then the valve bridge is fixed through the nut and the abutting plate, the valve bridges of different sizes can be fixed conveniently, and the applicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of valve bridge processing technology, and in particular to a drilling tool for long oil passage holes in valve bridges. Background Technology

[0002] A valve bridge is a support structure for engine valves, used to support the movement of the valves during operation. A valve bridge is a device used in the field of engine technology, especially suitable for four-valve diesel engines, to ensure that the two intake valves or the two exhaust valves can open and close synchronously.

[0003] According to the usage requirements, oil holes need to be drilled on the side of the valve bridge during the machining process. The location of the oil holes needs to be determined. Currently, when drilling the valve bridge, manual positioning is generally relied on, which has a certain deviation and low machining accuracy. Therefore, we propose a drilling tool for long oil passage holes in valve bridges. Utility Model Content

[0004] The purpose of this invention is to provide a drilling fixture for long oil passage holes in valve bridges, which can conveniently fix valve bridges of different sizes and position them for drilling.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a drilling fixture for long oil passage holes of valve bridge, including a support side plate, a positioning top plate mounted on the support side plate, a mounting side plate movably connected to the support side plate, an adjustment component mounted on the mounting side plate, and a positioning component threadedly connected to the adjustment component, wherein the positioning component is used to fix the valve bridge.

[0006] By adopting the above technical solution, the positioning component can fix the valve bridge, which is convenient for drilling the valve bridge. The adjustment component can change the positioning range of the positioning component, which is convenient for fixing valve bridges of different sizes, and has higher applicability.

[0007] A further feature of this invention is that the adjustment assembly includes two support plates mounted on the mounting side plate, a bidirectional screw rotatably connected between the two support plates, and a rotating handle mounted on the outside of the bidirectional screw.

[0008] A further feature of this invention is that the external part of the bidirectional screw has two sections of threads with opposite directions.

[0009] A further feature of this invention is that the positioning assembly includes a positioning bolt threaded to the outside of the bidirectional screw and movably connected to the mounting side plate, a stop plate mounted on the outside of the positioning bolt, and a nut threaded to the outside of the positioning bolt.

[0010] By adopting the above technical solution, the support plate supports the bidirectional screw, and then the rotating handle drives the bidirectional screw to rotate. Since the positioning bolts are threaded on the outside of the bidirectional screw, the two positioning bolts are brought closer or further apart on the mounting side plate. Valve bridges of different sizes can be passed through the two positioning bolts, and then the valve bridges are fixed by the nuts and the backing plate. This makes it convenient to fix valve bridges of different sizes and has higher applicability.

[0011] A further feature of this invention is that the outside of the rotating handle is provided with an anti-slip protective sleeve.

[0012] By adopting the above technical solution, the anti-slip protective cover can increase the friction between the user's hand and the rotating handle, preventing the rotating handle from slipping off the user's hand when rotating.

[0013] A further feature of this invention is that a positioning hole is provided on the positioning top plate.

[0014] By adopting the above technical solution, after fixing the valve bridge, the position of the oil hole to be opened on the valve bridge is aligned with the positioning hole. When drilling, the drill bit can be directly passed through the positioning hole to rotate the valve bridge, which facilitates positioning when opening the oil hole, reduces deviation, and improves machining accuracy.

[0015] A further feature of this invention is that the mounting side plate is movably connected to the supporting side plate via a slider, and the mounting side plate extends through and to the top of the positioning top plate.

[0016] A further feature of this invention is that a threaded hole is provided on the mounting side plate, and a fixing bolt that is threadedly connected to the threaded hole is threadedly connected to the positioning top plate.

[0017] A further feature of this invention is that the threaded holes are provided in multiple portions and are distributed at equal intervals on the mounting side plate.

[0018] By adopting the above technical solution, after fixing valve bridges of different sizes by adjusting the distance between the two positioning bolts, the mounting side plate passes through the positioning top plate, and then the fixing bolts are connected to the threaded holes at different positions. This ensures that the position to be drilled at the top of the valve bridge is always close to the lower surface of the positioning top plate, reducing the distance from the positioning hole to the drilling position, thereby shortening the drilling path and improving drilling efficiency.

[0019] A further feature of this invention is that the positioning top plate has a through hole adapted to the mounting side plate, and the inner wall of the through hole is designed to be smooth.

[0020] By adopting the above technical solution, the smooth design can reduce the wear caused by the movement of the mounting side plate on the positioning top plate, and the movement is also smoother.

[0021] The beneficial effects of this utility model are:

[0022] 1. The support plate supports the double-acting screw, and then the rotating handle drives the double-acting screw to rotate. Because the positioning bolts are threaded on the outside of the double-acting screw, the two positioning bolts are brought closer or further apart on the mounting side plate. Valve bridges of different sizes can be passed through the two positioning bolts, and then the valve bridges are fixed by the nuts and the backing plate. This makes it convenient to fix valve bridges of different sizes and has higher applicability.

[0023] 2. After fixing the valve bridge, align the position of the oil hole to be drilled on the valve bridge with the positioning hole. When drilling, the drill bit can pass directly through the positioning hole to rotate the valve bridge, which facilitates positioning when drilling the oil hole, reduces deviation, and improves machining accuracy.

[0024] 3. After fixing valve bridges of different sizes by adjusting the distance between the two positioning bolts, use the mounting side plate to pass through the positioning top plate, and then connect the fixing bolts to the threaded holes at different positions. This ensures that the position to be drilled on the top of the valve bridge is always close to the lower surface of the positioning top plate, reducing the distance from the positioning hole to the drilling position, thereby shortening the drilling path and improving drilling efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure and valve bridge assembly of this utility model.

[0028] In the diagram, 1 is the supporting side plate; 2 is the positioning top plate; 3 is the mounting side plate; 4 is the support plate; 5 is the double-ended screw; 6 is the rotating handle; 7 is the positioning bolt; 8 is the nut; 9 is the positioning hole; 10 is the slider; 11 is the threaded hole; 12 is the fixing bolt; 13 is the through hole; and 14 is the backing plate. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Please refer to 1-2. This utility model provides a drilling fixture for long oil passage holes of valve bridge, including a support side plate 1, a positioning top plate 2 installed on the support side plate 1, a mounting side plate 3 movably connected to the support side plate 1, an adjustment component installed on the mounting side plate 3, and a positioning component threadedly connected to the adjustment component. The positioning component is used to fix the valve bridge.

[0031] The positioning component can fix the valve bridge, making it easier to drill holes in the valve bridge. The adjustment component can change the positioning range of the positioning component, making it easier to fix valve bridges of different sizes, thus increasing its applicability.

[0032] The adjustment assembly includes two support plates 4 mounted on the mounting side plate 3, a bidirectional screw 5 rotatably connected between the two support plates 4, and a rotating handle 6 mounted on the outside of the bidirectional screw 5. The outside of the bidirectional screw 5 is provided with two sections of threads in opposite directions.

[0033] The positioning assembly includes a positioning bolt 7 threaded to the outside of the bidirectional screw 5 and movably connected to the mounting side plate 3, a stop plate 14 mounted on the outside of the positioning bolt 7, and a nut 8 threaded to the outside of the positioning bolt 7.

[0034] The support plate 4 supports the double-acting screw 5, and then the rotating handle 6 drives the double-acting screw 5 to rotate. Since the positioning bolts 7 are threaded to the outside of the double-acting screw 5, the two positioning bolts 7 are close to or far away from each other on the mounting side plate 3. Valve bridges of different sizes can be passed through the two positioning bolts 7, and then the valve bridges are fixed by the nuts 8 and the backing plate 14. This makes it convenient to fix valve bridges of different sizes and has higher applicability.

[0035] The rotating handle 6 is provided with an anti-slip protective cover. The anti-slip protective cover can increase the friction between the hand and the rotating handle 6 and prevent the rotating handle 6 from slipping off the hand when rotating.

[0036] The positioning top plate 2 has a positioning hole 9. After the valve bridge is fixed, the position of the oil hole to be opened on the valve bridge is aligned with the positioning hole 9. When drilling, the drill bit can be directly passed through the positioning hole 9 to rotate the valve bridge, which is convenient for positioning when opening the oil hole, reducing deviation and improving processing accuracy.

[0037] The mounting side plate 3 is movably connected to the support side plate 1 via a slider 10. The mounting side plate 3 extends through and to the top of the positioning top plate 2. The mounting side plate 3 has a threaded hole 11. The positioning top plate 2 is threaded with a fixing bolt 12 that is threaded to the threaded hole 11. There are multiple threaded holes 11, which are evenly distributed on the mounting side plate 3.

[0038] After fixing valve bridges of different sizes by adjusting the distance between the two positioning bolts 7, the mounting side plate 3 is passed through the positioning top plate 2, and then the fixing bolts 12 are connected to the threaded holes 11 at different positions. This ensures that the position to be drilled at the top of the valve bridge is always close to the lower surface of the positioning top plate 2, reducing the distance from the positioning hole 9 to the drilling position, thereby shortening the drilling path and improving drilling efficiency.

[0039] The positioning top plate 2 has a through hole 13 that matches the mounting side plate 3. The inner wall of the through hole 13 is designed to be smooth. The smooth design can reduce the wear caused by the movement of the mounting side plate 3 on the positioning top plate 2, and make the movement smoother.

Claims

1. A drilling tool for long oil passage holes in a valve bridge, characterized in that, It includes a support side plate (1), a positioning top plate (2) mounted on the support side plate (1), a mounting side plate (3) movably connected to the support side plate (1), an adjustment assembly mounted on the mounting side plate (3), and a positioning assembly threadedly connected to the adjustment assembly. The positioning assembly is used to fix the valve bridge.

2. The drilling fixture for long oil passage holes in a valve bridge according to claim 1, characterized in that: The adjustment assembly includes two support plates (4) mounted on the mounting side plate (3), a bidirectional screw (5) rotatably connected between the two support plates (4), and a rotating handle (6) mounted on the outside of the bidirectional screw (5).

3. The drilling fixture for long oil passage holes in a valve bridge according to claim 2, characterized in that: The external part of the bidirectional screw (5) is provided with two sections of threads in opposite directions.

4. The drilling fixture for long oil passage holes in a valve bridge according to claim 3, characterized in that: The rotating handle (6) is provided with an anti-slip protective cover.

5. The drilling fixture for long oil passage holes in a valve bridge according to claim 4, characterized in that: The positioning assembly includes a positioning bolt (7) threaded to the outside of the bidirectional screw (5) and movably connected to the mounting side plate (3), a stop plate (14) mounted on the outside of the positioning bolt (7), and a nut (8) threaded to the outside of the positioning bolt (7).

6. The drilling fixture for long oil passage holes in a valve bridge according to claim 5, characterized in that: The positioning top plate (2) is provided with positioning holes (9).

7. The drilling fixture for long oil passage holes in a valve bridge according to claim 6, characterized in that: The mounting side plate (3) is movably connected to the supporting side plate (1) via a slider (10), and the mounting side plate (3) extends through and to the top of the positioning top plate (2).

8. The drilling fixture for long oil passage holes in a valve bridge according to claim 7, characterized in that: The mounting side plate (3) has a threaded hole (11), and the positioning top plate (2) is threaded with a fixing bolt (12) that is threaded to the threaded hole (11).

9. The drilling fixture for long oil passage holes in a valve bridge according to claim 8, characterized in that: The threaded holes (11) are provided in multiple locations and are evenly distributed on the mounting side plate (3).

10. The drilling fixture for long oil passage holes in a valve bridge according to claim 9, characterized in that: The positioning top plate (2) has a through hole (13) that is compatible with the mounting side plate (3), and the inner wall of the through hole (13) is designed to be smooth.

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