Positioning tool for processing a cylinder head cover

Abstract

The utility model belongs to positioning frock technical field, concretely is a kind of positioning frock for cylinder cover processing, including first fixed plate, second fixed plate, first cylinder cover and second cylinder cover, the lower surface fixed mounting of first fixed plate is equipped with mounting seat, the lower surface fixed mounting of mounting seat is equipped with first hydraulic cylinder, the inside movable mounting of first hydraulic cylinder is equipped with first piston rod, the end part fixedly connected with rubber sleeve of first piston rod, the lower surface fixedly connected with hinged seat of first fixed plate. By first hydraulic cylinder cooperation first piston rod, first hydraulic cylinder can drive first piston rod telescopic, to make first piston rod can be through rubber sleeve and promote first locating plate contact to first cylinder cover, to form fixed for it, since first cylinder cover cannot promote second locating plate displacement, to make first locating plate not easy to promote first cylinder cover and produce displacement, further guarantee positioning position.

Description

Technical Field

[0001] This utility model belongs to the field of positioning tooling technology, specifically relating to a positioning tooling for machining cylinder head covers. Background Technology

[0002] The primary function of a cylinder head cover is to cover and seal the cylinder head, preventing dust, moisture, and other impurities from entering the engine and thus protecting internal engine components. Cylinder head covers are typically made of aluminum alloy or cast iron and have multiple functions and constructions to protect, seal, and optimize engine operation. Regular inspection and replacement of cylinder head covers are crucial for automotive maintenance to protect the engine's internal lubricating oil and prevent moisture and impurities from affecting engine performance. During the cylinder head cover manufacturing process, the use of specialized fixtures and positioning tools is necessary; these tools minimize the inconvenience caused by workpiece slippage.

[0003] When installing the cylinder head cover onto the positioning fixture, the positioning fixture often uses a hydraulically driven positioning block, which can easily push the cylinder head cover, thus failing to ensure that the cylinder head cover is in an accurate positioning position. Summary of the Invention

[0004] To address the problems mentioned in the background art, this utility model provides a positioning fixture for machining cylinder head covers, which solves the problem that the positioning block can easily push the cylinder head cover, thus failing to ensure that the cylinder head cover is in an accurate positioning position.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for machining a cylinder head cover, comprising a first fixing plate, a second fixing plate, a first cylinder head cover, and a second cylinder head cover. A mounting base is fixedly installed on the lower surface of the first fixing plate. A first hydraulic cylinder is fixedly installed on the lower surface of the mounting base. A first piston rod is movably installed inside the first hydraulic cylinder. A rubber sleeve is fixedly connected to the end of the first piston rod. A hinge seat is fixedly connected to the lower surface of the first fixing plate. A hinge shaft is rotatably installed inside the hinge seat. A first positioning plate is fixedly connected to the surface of the hinge shaft. A second hydraulic cylinder is fixedly installed on the lower surface of the first fixing plate. A second piston rod is movably installed inside the second hydraulic cylinder. A first connecting plate is fixedly connected to the output end of the second piston rod. A second connecting plate is fixedly connected to the output end of the second piston rod. A second positioning plate is fixedly connected to the ends of both the first and second connecting plates. A rotary cylinder is fixedly installed on the lower surface of the second fixing plate. A rotating rod is movably installed inside the rotary cylinder. A positioning block is fixedly sleeved at the end of the rotating rod.

[0006] Preferably, there are three sets of the first hydraulic cylinder and the first piston rod, and the position of each set corresponds to a first positioning plate.

[0007] Preferably, the rubber sleeve is located to the side of the first positioning plate.

[0008] Preferably, the first connecting plate is U-shaped, and two second positioning plates are connected to its ends.

[0009] Preferably, the positions of the first positioning plate and the second positioning plate are symmetrical to each other.

[0010] Preferably, the rotary cylinder, rotating rod, and positioning block are arranged symmetrically.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The positioning fixture used for machining the cylinder head cover allows for easy fixing of the first and second cylinder head covers in different states via a first and second fixing plate. A second hydraulic cylinder, in conjunction with a second piston rod, drives the second piston rod to move vertically, facilitating adjustment of the height of the second positioning plate. A first hydraulic cylinder, in conjunction with a first piston rod, extends and retracts the first piston rod, allowing it to push the first positioning plate against the first cylinder head cover via a rubber sleeve, thus fixing it in place. Since the first cylinder head cover cannot push the second positioning plate, the first positioning plate does not easily cause displacement of the first cylinder head cover, ensuring the correct positioning. The rotary cylinder facilitates the rotation of a rotating rod, which in turn rotates the positioning block 90°, thus fixing the second cylinder head cover. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:

[0014] Figure 1 This is a complete structural schematic diagram of the present invention;

[0015] Figure 2 This is a bottom view of the present invention;

[0016] Figure 3 This is a structural diagram of the present invention from a lower view.

[0017] In the diagram: 1. First fixing plate; 2. Second fixing plate; 3. First cylinder head cover; 4. Second cylinder head cover; 5. Mounting seat; 6. First hydraulic cylinder; 7. First piston rod; 8. Rubber sleeve; 9. Hinge seat; 10. Hinge shaft; 11. First positioning plate; 12. Second hydraulic cylinder; 13. Second piston rod; 14. First connecting plate; 15. Second connecting plate; 16. Second positioning plate; 17. Rotary cylinder; 18. Rotating rod; 19. Positioning block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides the following technical solution: a positioning fixture for machining a cylinder head cover, comprising a first fixing plate 1, a second fixing plate 2, a first cylinder head cover 3, and a second cylinder head cover 4. A mounting base 5 is fixedly mounted on the lower surface of the first fixing plate 1. A first hydraulic cylinder 6 is fixedly mounted on the lower surface of the mounting base 5. A first piston rod 7 is movably mounted inside the first hydraulic cylinder 6. A rubber sleeve 8 is fixedly connected to the end of the first piston rod 7. A hinge seat 9 is fixedly connected to the lower surface of the first fixing plate 1. A hinge shaft 10 is rotatably mounted inside the hinge seat 9. A first... A positioning plate 11 is provided. A second hydraulic cylinder 12 is fixedly installed on the lower surface of a first fixed plate 1. A second piston rod 13 is movably installed inside the second hydraulic cylinder 12. A first connecting plate 14 is fixedly connected to the output end of the second piston rod 13. A second connecting plate 15 is fixedly connected to the output end of the second piston rod 13. A second positioning plate 16 is fixedly connected to the ends of both the first connecting plate 14 and the second connecting plate 15. A rotary cylinder 17 is fixedly installed on the lower surface of the second fixed plate 2. A rotating rod 18 is movably installed inside the rotary cylinder 17. A positioning block 19 is fixedly sleeved at the end of the rotating rod 18.

[0020] In this embodiment, the first fixing plate 1 and the second fixing plate 2 facilitate the fixing of the first cylinder head cover 3 and the second cylinder head cover 4 in different states. The second hydraulic cylinder 12, in conjunction with the second piston rod 14, drives the second piston rod 14 to move vertically, thereby facilitating the adjustment of the height of the second positioning plate 16. The first hydraulic cylinder 6, in conjunction with the first piston rod 7, drives the first piston rod 7 to extend and retract, so that the first piston rod 7 can push the first positioning plate 11 to contact the first cylinder head cover 3 through the rubber sleeve 8, thereby fixing it. Since the first cylinder head cover 3 cannot push the second positioning plate 16 to move, the first positioning plate 11 does not easily push the first cylinder head cover 3 to move, thus ensuring the positioning position. The setting of the rotary cylinder 17 facilitates the rotation of the rotating rod 18, so that the rotating rod 18 drives the positioning block 19 to rotate 90°, which facilitates the fixing of the second cylinder head cover 4.

[0021] Specifically, there are three sets of first hydraulic cylinders 6 and first piston rods 7, and the position of each set corresponds to a first positioning plate 11. Thus, by pushing the first piston rod 7, the first hydraulic cylinder 6 can easily lift the first positioning plate 11 at the corresponding position, and can be fixed from the side of the first cylinder head cover 3.

[0022] Specifically, the rubber sleeve 8 is located on the side of the first positioning plate 11. The rubber sleeve 8 can replace the end of the first piston rod 7 in contact with the first positioning plate 11, thus avoiding wear.

[0023] Specifically, the first connecting plate 14 is U-shaped, and two second positioning plates 16 are connected to its ends. The first connecting plate 14 can facilitate the simultaneous vertical movement of the two second positioning plates 16.

[0024] Specifically, the positions of the first positioning plate 11 and the second positioning plate 16 are symmetrical. Since the first positioning plate 11 can change its angle through the hinge shaft 10, while the second positioning plate 16 cannot change its angle, the second positioning plate 16 can fix the position of the first cylinder head cover 3. When the first positioning plate 11 contacts the first cylinder head cover 3, it will not be able to push the first cylinder head cover 3 to move.

[0025] Specifically, the rotary cylinder 17, the rotating rod 18, and the positioning block 19 are arranged symmetrically, so that the positioning blocks 19 on both sides can be fixed simultaneously by rotating through the rotary cylinder 17 and the rotating rod 18.

[0026] The working principle or usage process of this utility model is as follows: The first cylinder head cover 3 and the second cylinder head cover 4 are two forms of cylinder head covers. The first cylinder head cover 3 is a cylinder head cover with an opening facing downwards, and the second cylinder head cover 4 is a cylinder head cover with an opening facing upwards. When the internal part of the cylinder head cover needs to be processed, it can be fixed below the first fixing plate 1. When the external surface of the cylinder head cover needs to be processed, it can be fixed below the second fixing plate 2. After the cylinder head cover is placed below the first fixing plate 1, the second hydraulic cylinder 12 can be activated to drive the second piston rod 14 to move vertically, thereby facilitating the adjustment of the height of the second positioning plate 16. The second positioning plate 16 can first fix the cylinder head cover, and then the first hydraulic cylinder 6 can be activated. The start-up mechanism drives the first piston rod 7 to extend and retract, allowing the first piston rod 7 to push the first positioning plate 11 to contact the first cylinder head cover 3 via the rubber sleeve 8, thereby fixing it in place. Since the first cylinder head cover 3 cannot push the second positioning plate 16 to move, the first positioning plate 11 cannot easily push the first cylinder head cover 3 to move, thus ensuring the positioning position. After the cylinder head cover is placed under the second fixing plate 2, the simultaneous start-up of the two rotary cylinders 17 can drive the rotating rod 18 to rotate. The rotating rod 18 drives the positioning block 19 to rotate 90°, which facilitates the fixing of the second cylinder head cover 4 from both sides. The electrical equipment in this device is all externally powered and its operation and shutdown are controlled by the matching control switch.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning fixture for machining a cylinder head cover, comprising a first fixing plate (1), a second fixing plate (2), a first cylinder head cover (3), and a second cylinder head cover (4), characterized in that: A mounting base (5) is fixedly installed on the lower surface of the first fixing plate (1). A first hydraulic cylinder (6) is fixedly installed on the lower surface of the mounting base (5). A first piston rod (7) is movably installed inside the first hydraulic cylinder (6). A rubber sleeve (8) is fixedly connected to the end of the first piston rod (7). A hinge seat (9) is fixedly connected to the lower surface of the first fixing plate (1). A hinge shaft (10) is rotatably installed inside the hinge seat (9). A first positioning plate (11) is fixedly connected to the surface of the hinge shaft (10). A second hydraulic cylinder (12) is fixedly installed on the lower surface of the first fixing plate (1). The second hydraulic cylinder (12) has a second piston rod (13) installed inside. The output end of the second piston rod (13) is fixedly connected to a first connecting plate (14). The output end of the second piston rod (13) is fixedly connected to a second connecting plate (15). The ends of the first connecting plate (14) and the second connecting plate (15) are both fixedly connected to a second positioning plate (16). The lower surface of the second fixed plate (2) is fixedly installed with a rotary cylinder (17). The rotary cylinder (17) has a rotating rod (18) installed inside. The end of the rotating rod (18) is fixedly sleeved with a positioning block (19).

2. The positioning fixture for machining a cylinder head cover according to claim 1, characterized in that: There are three sets of the first hydraulic cylinder (6) and the first piston rod (7), and the position of each set corresponds to a first positioning plate (11).

3. The positioning fixture for machining a cylinder head cover according to claim 1, characterized in that: The rubber sleeve (8) is located on the side of the first positioning plate (11).

4. The positioning fixture for machining a cylinder head cover according to claim 1, characterized in that: The first connecting plate (14) is U-shaped, and two second positioning plates (16) are connected to its ends.

5. The positioning fixture for machining a cylinder head cover according to claim 1, characterized in that: The positions of the first positioning plate (11) and the second positioning plate (16) are symmetrical.

6. The positioning fixture for machining a cylinder head cover according to claim 1, characterized in that: The rotary cylinder (17), rotating rod (18), and positioning block (19) are arranged symmetrically.

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