A milling device for cylinder head cover

Abstract

This invention relates to a milling device for cylinder head caps, comprising a base plate, a positioning plate, and a movable plate. A column is fixedly connected to the top of the base plate. A lifting cylinder is installed at the bottom of the positioning plate. A flat-headed elastic pin and a conical elastic pin are installed at the top of the movable plate, with the cylinder head cap resting on the top of the conical elastic pin. An inner hole is formed on the side of the cylinder head cap. A clamping cylinder is installed at the bottom of the positioning plate, with a clamping block at its bottom. A movable hole is formed inside the movable plate. A positioning post is provided at the bottom of the positioning plate. A hand-operated valve is installed on the side of the column, with an air inlet pipe and an inner tube on its side. A throttle valve is provided on the side of the lifting cylinder. An opening is formed at the top of the positioning plate. The base plate is installed inside a milling machine. A milling cutter passes through the opening to process the clamped cylinder head cap, effectively clamping and fixing the cylinder head cap, facilitating operation, improving processing efficiency, enhancing stability, and improving processing results.

Description

Technical Field

[0001] This invention relates to the field of cylinder head cover machining technology, and in particular to a milling device for cylinder head covers. Background Technology

[0002] The cylinder head cover is an important component of a motorcycle engine. It is installed above the engine cylinders and houses the valve clearance adjustment screw. The cylinder head cover is produced as a semi-finished product through die casting, and then finished through CNC precision machining. During the milling process, ordinary milling fixing devices hold the cylinder head cover on both sides of the top, resulting in limited contact area, low stability, and affecting the machining effect. Summary of the Invention

[0003] The present invention aims to solve the problems existing in the prior art by providing a milling device for cylinder head covers, which can effectively clamp and fix the cylinder head covers, facilitate operation, improve processing efficiency, enhance stability, and improve processing results.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: A milling device for a cylinder head cover includes a base plate, a positioning plate, and a movable plate. A column is fixedly connected to the top of the base plate, and the top of the column is connected to the positioning plate. A lifting cylinder is installed at the bottom of the positioning plate, and the bottom of the lifting cylinder is connected to the movable plate. A flat-headed elastic pin and a conical elastic pin are installed at the top of the movable plate. A cylinder head cover is placed on top of the conical elastic pin, and the cylinder head cover is also placed on top of the flat-headed elastic pin. An inner hole is provided on the side of the cylinder head cover. The conical and flat-headed elastic pins reach the inner hole. A clamping cylinder is installed at the bottom of the positioning plate, and a clamping block is set at the bottom of the clamping cylinder. The clamping block is below the cylinder head cover. A movable hole is opened inside the movable plate, through which the clamping block passes. A positioning post is set at the bottom of the positioning plate, and the bottom of the positioning post abuts against the top of the cylinder head cover. A hand valve is installed on the side of the post, and an air inlet pipe and an inner tube are set on the side of the hand valve. A throttle valve is set on the side of the lifting cylinder, and a throttle valve is also set on the side of the clamping cylinder. The throttle valve is connected to the inner tube. An opening is opened at the top of the positioning plate. The base plate is installed inside the milling machine. The milling cutter processes the clamped cylinder head cover through the opening. The cylinder head cover is placed on top of the flat-head elastic pin and the tapered elastic pin. The inner hole of the cylinder head cover corresponds to the flat-head elastic pin and the tapered elastic pin. The tapered elastic pin and the flat-head elastic pin reach into the inner hole, and the cylinder head cover is positioned in the X and Y directions. Pulling the manual valve causes the lifting cylinder to retract due to the action of the throttle valve. The lifting cylinder drives the movable plate to move smoothly upward, and the cylinder head cover is pulled up to the Z-direction positioning surface. The top of the cylinder head cover is aligned with the bottom of the positioning pin. The clamping cylinder operates by mutual restraint. The retraction of the clamping cylinder causes the clamping block to move rapidly upwards, clamping the cylinder head cover below the positioning contact surface. The cylinder head cover is then fixed. The milling machine operates, and the milling cutter mills the cylinder head cover through the opening. After machining, the hand valve is pulled, releasing the clamping cylinder. The clamping block moves away from the cylinder head cover, and the lifting cylinder extends, driving the movable plate back to its original position smoothly. The entire process effectively clamps and fixes the cylinder head cover, facilitating operation, improving machining efficiency, enhancing stability, and improving machining results.

[0005] To further improve the design, the base plate, positioning plate, and movable plate are parallel to each other. The base plate also has an opening. While meeting the installation and support requirements, the opening reduces the weight of the base plate. The movable plate moves smoothly up and down between the base plate and the positioning plate. The movable plate remains horizontal throughout its movement, and the cylinder head cover on the movable plate also remains horizontal, thus enhancing stability.

[0006] Further improvements include two flat-head elastic pins and two conical elastic pins. The two flat-head elastic pins and the two conical elastic pins correspond to the four inner holes of the cylinder head cover. While the cylinder head cover is positioned in the X and Y directions, the two flat-head elastic pins and the two conical elastic pins provide sufficient support to the cylinder head cover, keeping it in a stable state.

[0007] To further improve the design, the clamping cylinder has three parts, and the movable plate has three movable holes. The three clamping blocks pass through the three movable holes respectively, increasing the movement space of the clamping cylinders and clamping blocks and preventing the movable plate from contacting or colliding with the clamping blocks during the upward movement.

[0008] In a further improvement, an optical axis is fixedly connected to the top of the base plate. The top of the optical axis is connected to the positioning plate. The optical axis passes through the interior of the movable plate, and a linear bearing is installed inside the movable plate. The linear bearing is sleeved on the surface of the optical axis. While enhancing the support, the optical axis effectively limits the movement of the movable plate, preventing it from shifting up and down. The interaction between the linear bearing and the optical axis reduces friction and improves smoothness.

[0009] To further improve the design, there are two optical axes, which are diagonally arranged. There are also two lifting cylinders, which are also diagonally arranged. The two lifting cylinders exert balanced forces, and the two optical axes have balanced limit positions, further ensuring that the movable plate and cylinder head cover move smoothly up and down to reach the precise position.

[0010] Further improvements include the addition of grooves on the side of the movable plate, with columns extending into the grooves. There are four columns and four grooves in total. The grooves save space and reduce the weight of the movable plate itself.

[0011] To further improve the design, the top of the clamping block is fixedly connected with two limiting posts. These two posts reach inside the clamping cylinder, ensuring the vertical up-and-down movement of the clamping block and improving stability. This ensures that the clamping block can efficiently clamp the cylinder head cover.

[0012] Further improvements include the addition of two throttle valves on the sides of the lifting cylinder and clamping cylinder, and two sets of air inlet and outlet valves in the inner tube. One throttle valve adjusts the air intake of the lifting cylinder or clamping cylinder, while the other throttle valve adjusts the air output of the lifting cylinder or clamping cylinder, making operation simple and convenient.

[0013] The beneficial effects of this invention are:

[0014] 1. The cylinder head cover is placed on top of the flat-head and conical elastic pins. The inner hole of the cylinder head cover corresponds to the flat-head and conical elastic pins. The conical and flat-head elastic pins reach the inner hole, positioning the cylinder head cover in the X and Y directions. Pulling the lever valve causes the lifting cylinder to retract due to the throttle valve's action. The lifting cylinder drives the movable plate to move smoothly upward, pulling the cylinder head cover to the Z-direction positioning surface. The top of the cylinder head cover abuts against the bottom of the positioning pin, and the clamping cylinder operates, clamping... The cylinder retracts, causing the clamping block to move rapidly upwards. The clamping block clamps the cylinder head cover below the positioning contact surface, thus fixing the cylinder head cover. The milling machine then runs, and the milling cutter passes through the opening to mill the cylinder head cover's surface. After machining, the hand valve is pulled, releasing the clamping cylinder. The clamping block moves away from the cylinder head cover, and the lifting cylinder extends. The lifting cylinder drives the movable plate to return smoothly to its original position, completing the entire process. The entire process effectively clamps and fixes the cylinder head cover, facilitating operation, improving machining efficiency, enhancing stability, and improving machining results.

[0015] 2. While enhancing support through the optical axis, the movable plate is effectively limited to prevent it from shifting up and down. The interaction between the linear bearing and the optical axis reduces friction and improves smoothness. The forces of the two lifting cylinders are balanced, and the limits of the two optical axes are balanced, further ensuring that the movable plate and cylinder head cover move smoothly up and down to the precise position. The groove design saves space, and the weight of the movable plate itself is also reduced. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 For the present invention Figure 1 Enlarged view at point B in the middle;

[0019] Figure 4 This is a view of the bottom of the cylinder head cover of the present invention;

[0020] Figure 5 This is a diagram illustrating the installation of the inner tube of the present invention;

[0021] Figure 6 For the present invention Figure 5 Enlarged view at point C;

[0022] Figure 7 This is a schematic diagram of the clamping cylinder structure of the present invention;

[0023] Figure 8 This is a top view of the movable plate of the present invention;

[0024] Figure 9For the present invention Figure 8 Enlarged view of D in the middle;

[0025] Figure 10 This is a right view of the structure of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Positioning plate; 3. Movable plate; 4. Column; 5. Lifting cylinder; 6. Flat-head elastic pin; 7. Conical elastic pin; 8. Cylinder head cover; 9. Inner hole; 10. Clamping cylinder; 11. Clamping block; 12. Movable hole; 13. Positioning pin; 14. Hand valve; 15. Air inlet pipe; 16. Inner pipe; 17. Throttling valve; 18. Opening; 19. Optical axis; 20. Linear bearing; 21. Groove; 22. Limiting pin. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-10 Further explanation of this embodiment:

[0028] like Figure 1-10 As shown: This embodiment of a milling device for a cylinder head cover includes a base plate 1, a positioning plate 2, and a movable plate 3. A column 4 is fixedly connected to the top of the base plate 1, and the top of the column 4 is connected to the positioning plate 2. A lifting cylinder 5 is installed at the bottom of the positioning plate 2, and the bottom of the lifting cylinder 5 is connected to the movable plate 3. A flat-headed elastic pin 6 and a conical elastic pin 7 are installed at the top of the movable plate 3. A cylinder head cover 8 is placed on the top of the conical elastic pin 7, and the cylinder head cover 8 is also placed on the top of the flat-headed elastic pin 6. An inner hole 9 is opened on the side of the cylinder head cover 8, and the conical elastic pin 7 and the flat-headed elastic pin 6 reach into the inner hole 9. A clamping cylinder 10 is installed at the bottom of the positioning plate 2, and a clamping block 11 is provided at the bottom of the clamping cylinder 10. The clamping block 11 is below the cylinder head cover 8. A movable hole 12 is opened inside the movable plate 3, and the clamping block 11 passes through the movable hole 12. A positioning post 13 is provided at the bottom of the positioning plate 2, and the bottom of the positioning post 13 abuts against the top of the cylinder head cover 8. The column 4 has a hand-operated valve 14 on its side, an air inlet pipe 15 on its side, and an inner pipe 16 on its side. The lifting cylinder 5 has a throttle valve 17 on its side, and the clamping cylinder 10 also has a throttle valve 17 on its side. The throttle valve 17 is connected to the inner pipe 16. The top of the positioning plate 2 has an opening 18. The base plate 1 is installed inside the milling machine. The milling cutter passes through the opening 18 to process the clamped cylinder head cover 8. The base plate 1, positioning plate 2, and... The movable plates 3 are parallel to each other, and the base plate 1 is also provided with an opening 18. There are two flat-headed elastic pins 6 and two conical elastic pins 7. There are three clamping cylinders 10. There are three movable holes 12 opened in the movable plates 3. The top of the clamping block 11 is fixedly connected to the limit post 22. There are two limit posts 22. The two limit posts 22 reach the inside of the clamping cylinder 10. The lifting cylinder 5 and the clamping cylinder 10 are respectively provided with two throttle valves 17. The inner tube 16 has two sets of air inlet and air outlet.

[0029] like Figure 8-10 As shown: A light axis 19 is fixedly connected to the top of the base plate 1. The top of the light axis 19 is connected to the positioning plate 2. The light axis 19 passes through the interior of the movable plate 3. A linear bearing 20 is installed inside the movable plate 3. The linear bearing 20 is sleeved on the surface of the light axis 19. There are two light axes 19, which are arranged diagonally. There are also two lifting cylinders 5, which are also arranged diagonally. A groove 21 is opened on the side of the movable plate 3. The column 4 reaches into the groove 21. There are four columns 4 and four grooves 21.

[0030] In use, the cylinder head cover 8 is placed on top of the flat-head elastic pin 6 and the conical elastic pin 7. The inner hole 9 of the cylinder head cover 8 corresponds to the flat-head elastic pin 6 and the conical elastic pin 7. The two conical elastic pins 7 and the two flat-head elastic pins 6 reach into the four inner holes 9 respectively, and the cylinder head cover 8 is positioned in the X and Y directions. The two flat-head elastic pins 6 and the two conical elastic pins 7 provide sufficient support for the cylinder head cover 8, keeping the cylinder head cover 8 stable. Pulling the manual valve 14 causes the two lifting cylinders 5 to retract due to the action of the throttle valve 17. The two lifting cylinders 5 drive the movable plate 3 to move smoothly upward. The movable plate 3 has two optical shafts 19 inside. The optical shafts 19 enhance the support and effectively limit the movement of the movable plate 3, preventing the movable plate 3 from shifting vertically. The linear bearing 20 is connected to the optical shafts. The interaction of 19 reduces friction and improves smoothness. The cylinder head cover 8 is pulled up to the Z-direction positioning surface. The top of the cylinder head cover 8 abuts against the bottom of the positioning post 13. The three clamping cylinders 10 operate and retract, causing the three clamping blocks 11 to move upward quickly. The clamping blocks 11 clamp the cylinder head cover 8 below the positioning contact surface, and the cylinder head cover 8 is fixed. The milling machine runs, and the milling cutter performs milling surface machining on the cylinder head cover 8 through the opening 18. After machining, the hand valve 14 is pulled, the clamping cylinders 10 are released, the clamping blocks 11 move away from the cylinder head cover 8, the lifting cylinder 5 extends and operates, and the lifting cylinder 5 drives the movable plate 3 to return smoothly to its original position. The entire process ends. The entire process effectively clamps and fixes the cylinder head cover 8, which facilitates operation, improves processing efficiency, enhances stability, and improves processing effect.

[0031] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art will understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A device for milling a flat surface of a cylinder head cover, comprising a base plate (1), a positioning plate (2) and a movable plate (3), characterized in that: The bottom plate (1) top fixedly connected with column (4), column (4) top and positioning plate (2) are connected, positioning plate (2) bottom installation lift cylinder (5), lift cylinder (5) bottom and movable plate (3) are connected, movable plate (3) top installation flat head elastic pin (6), movable plate (3) top installation conical elastic pin (7), conical elastic pin (7) top place cylinder head cover (8), cylinder head cover (8) also place in flat head elastic pin (6) top, cylinder head cover (8) side edge open there is a hole (9), conical elastic pin (7) and flat head elastic pin (6) reach inside the hole (9), positioning plate (2) bottom installation clamping cylinder (10), clamping cylinder (10) bottom is provided with clamping block (11), clamping block (11) below cylinder head cover (8), movable plate (3) inside open activity hole (12), clamping block (11) through activity hole (12), positioning plate (2) bottom is provided with positioning column (13), positioning column (13) bottom and cylinder head cover (8) top bear, column (4) side edge installation hand pull valve (14), hand pull valve (14) side edge is provided with air inlet pipe (15), hand pull valve (14) side edge is provided with inner tube (16), lift cylinder (5) side edge is provided with throttle valve (17), clamping cylinder (10) side edge is also provided with throttle valve (17), throttle valve (17) and inner tube (16) are connected, positioning plate (2) top open opening (18), bottom plate (1) is installed in milling machine interior, milling cutter passes through opening (18) and processes the clamped cylinder head cover (8).

2. A planing device for cylinder heads as claimed in claim 1, characterized in that: The bottom plate (1), the positioning plate (2) and the movable plate (3) are parallel to each other, and the bottom plate (1) is also provided with an opening (18).

3. The planar milling device for cylinder heads of claim 1, wherein: The flat head elastic pin (6) has two, and the conical elastic pin (7) also has two.

4. The planar milling device for cylinder heads of claim 1, wherein: The clamping cylinder (10) has three, and the movable plate (3) is provided with three activity holes (12).

5. The planar milling device for cylinder heads of claim 1, wherein: The bottom plate (1) top fixedly connected with light shaft (19), light shaft (19) top and positioning plate (2) are connected, light shaft (19) passes through movable plate (3) interior, movable plate (3) interior is provided with linear bearing (20), linear bearing (20) is sleeved on the surface of light shaft (19).

6. A planing device for cylinder heads as set forth in claim 5, characterized in that: The light shaft (19) has two, and the two light shafts (19) are diagonally arranged, and the lift cylinder (5) also has two, and the two lift cylinders (5) are also diagonally arranged.

7. The planar milling device for cylinder heads of claim 1, wherein: The movable plate (3) side edge open recess (21), column (4) reach recess (21) inside, column (4) and recess (21) have four respectively.

8. The planar milling device for cylinder heads of claim 1, wherein: The clamping block (11) top fixedly connected with limit column (22), limit column (22) has two, two limit column (22) reach clamping cylinder (10) inside.

9. The planar milling device for cylinder heads of claim 1, wherein: The lift cylinder (5) and clamping cylinder (10) side edge are provided with two throttle valves (17) respectively, and the inner tube (16) has two groups of air inlet and air outlet.

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