Clamping and rotating mechanism for engine cylinder head and production line

Abstract

The utility model relates to a kind of clamping rotary mechanism and production line for engine cylinder cover, and effective promotion of engine cylinder cover clamping and overturning is realized by innovative external fixed track constraint design.When the workpiece is locked by the pressing mechanism, the roller is limited on the complete circumferential track composed of C-shaped guide plate and lifting type limiting plate;During the rotation, the track provides continuous radial support for the pressing mechanism, which can completely resist the overturning moment generated by the gravity of the workpiece and the rotational inertia, so that rigid locking can be maintained at any angle.The mechanism not only realizes full-automatic, multi-angle and high-efficiency stable operation of the cylinder head, but also provides key equipment support for high-quality automatic cleaning and processing of the engine cylinder head with its reliable operation and easy maintenance.

Description

Technical Field

[0001] This utility model relates to the field of engine production equipment technology, and in particular to a clamping and rotating mechanism and production line for engine cylinder heads. Background Technology

[0002] The engine cylinder head is a core component of the engine, with a complex structure. Its surface and interior typically contain various irregular cavities and features such as air passages, water passages, oil passages, and bolt holes. After machining processes such as casting, milling, drilling, and tapping, a large amount of metal shavings, oil stains, burrs, and other foreign matter can easily remain on the surface, in the passages, and in the complex cavities of the cylinder head.

[0003] Currently, the industry primarily relies on manual labor for cleaning engine cylinder head residues. Operators typically use lifting equipment to hoist the cylinder head to the cleaning station and then use a handheld high-pressure air gun or blowing device to clean the surface. Due to the complex structure of the cylinder head, single-sided blowing cannot thoroughly remove residues from all locations, especially debris hidden in deep holes, blind holes, and non-upward-facing surfaces. Therefore, operators often need to adjust the lifting equipment's position multiple times, and even manually flip and tilt the cylinder head using other auxiliary tools to clean surfaces at different angles. This process is not only cumbersome, labor-intensive, and inefficient, but the cleaning quality also heavily depends on the worker's experience and sense of responsibility, resulting in inconsistent cleaning and the potential for overlooking hard-to-reach areas. Furthermore, frequent flipping and hoisting also pose certain safety hazards.

[0004] Therefore, existing manual purging methods are no longer sufficient to meet the requirements of modern production lines for cleaning efficiency, quality stability, and automation. There is an urgent need to develop a specialized mechanism capable of automatically clamping, stably rotating, and positioning engine cylinder heads at multiple angles to achieve efficient and comprehensive cleaning of cylinder head residue. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the fact that the existing technology mainly relies on manual cleaning of the residue on the engine cylinder head. Operators often need to adjust the posture of the lifting tool multiple times, or even use other auxiliary tools to manually flip and tilt the cylinder head in order to achieve cleaning of the surface at different angles. This is not only cumbersome, labor-intensive, and inefficient, but also has problems such as inconsistent cleaning quality and easy omission of dead corners.

[0006] To solve the above-mentioned technical problems, this utility model provides a clamping and rotating mechanism for an engine cylinder head, comprising: frame; A rotating frame includes a rotating base and a movable plate. Two rotating bases are coaxially rotatably connected to a frame. The two rotating bases are connected by at least two first connecting rods. The two rotating bases rotate in a vertical plane and each has a through slot extending vertically. Two movable plates are provided and movably connected to the two rotating bases in a vertical direction. Each movable plate has a wheel axle that passes horizontally through its adjacent through slot. A roller is rotatably connected to the wheel axle. At least two second connecting rods are connected between the two movable plates, and multiple pressure blocks are provided on each of the two second connecting rods. There are two guide plates, each with a C-shaped structure. The two guide plates are respectively mounted on the frame and coaxial with the rotating seat. The lifting assembly has two sets of components, each positioned close to one of the two guide plates. It includes a first drive source, which is vertically mounted on a frame. The output end of the first drive source is connected to a connecting seat. The connecting seat has a first limiting plate and a second limiting plate arranged at intervals in the vertical direction. The roller is located between the first and second limiting plates. The first limiting plate is positioned within a notch in the guide plate and above the second limiting plate. The first limiting plate includes an arcuate surface, which, together with the side surface of the guide plate, forms a complete circumferential surface for the roller to roll. The second drive source has its output end coaxially connected to any rotating seat to drive its rotation.

[0007] In one embodiment of this utility model, each rotating seat includes a vertical plate, a bottom plate, and stiffening plates. The vertical plate is vertically arranged and rotatably connected to the frame. The bottom plate is horizontally connected to the vertical plate and arranged near one end thereon. Two mutually symmetrical stiffening plates are connected between the bottom plate and the vertical plate.

[0008] In one embodiment of the present invention, a positioning block group is further included. Two groups of positioning block groups are provided and respectively installed on the two base plates. Each positioning block group includes multiple positioning blocks connected to the base plate for positioning the engine cylinder head.

[0009] In one embodiment of this utility model, two sets of guide wheel groups are symmetrically arranged on the two upright plates. Each set of guide wheel groups includes at least two guide wheels that are rotatably connected to the upright plate and arranged at intervals in the vertical direction. The movable plate is arranged parallel to the upright plate between the two guide wheel groups, and the two sides of the movable plate are respectively rotatably connected to each guide wheel of the two guide wheel groups.

[0010] In one embodiment of this utility model, the guide wheel is a V-shaped wheel, and the two sides of the movable plate are respectively provided with V-shaped protrusions that cooperate with the V-shaped wheel.

[0011] In one embodiment of this utility model, each of the two movable plates is provided with a connecting plate, the two ends of the second connecting rod are respectively connected to the two connecting plates, and multiple elastic elements are respectively connected between the two connecting plates and their corresponding base plates.

[0012] In one embodiment of this utility model, the second connecting rod is provided with a plurality of mounting plates extending horizontally to one side thereon, and the mounting plates are provided with vertical threaded holes, and the pressure block is screwed onto the threaded holes by a screw.

[0013] In one embodiment of this utility model, the pressure block is made of an elastic material.

[0014] In one embodiment of the present invention, the frame includes two opposing bases, and the two rotating seats are respectively rotatably connected to the two bases.

[0015] A production line includes a clamping and rotating mechanism for an engine cylinder head as described in any of the preceding claims.

[0016] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: This utility model discloses a clamping and rotating mechanism and production line for engine cylinder heads. It employs the principle of external fixed track constraint. After the clamping mechanism presses down to clamp the cylinder head, the rollers on the movable plate are restricted to a complete circumferential track surface formed by a C-shaped guide plate and a first limiting plate. Throughout the subsequent rotation process, this fixed external track provides strong radial support for the clamping mechanism, completely resisting the overturning moment caused by the cylinder head's weight and rotational inertia. This ensures that there is no loosening or relative displacement between the cylinder head and the clamping mechanism, or between the clamping mechanism and the rotating frame, even during high-speed rotation or hovering at any angle. The clamping is absolutely stable, completely eliminating the safety hazard of workpiece detachment. Furthermore, by driving the rotating frame to rotate via a second drive source, the engine cylinder head can be automatically and smoothly rotated and precisely hovered within the 0-360 degree range, facilitating fast and efficient operation for the operator. The entire mechanism is compact, reliable in operation, and easy to maintain, greatly improving the cleaning efficiency of engine cylinder heads. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Figure 1 This is an isometric view of a preferred embodiment of the clamping and rotating mechanism for an engine cylinder head according to the present invention; Figure 2 This is a schematic diagram of the rotating frame of the clamping and rotating mechanism for the engine cylinder head according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the frame of the clamping and rotating mechanism for the engine cylinder head according to a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the lifting assembly of the clamping and rotating mechanism for the engine cylinder head according to a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the first limiting plate of the clamping and rotating mechanism for the engine cylinder head according to a preferred embodiment of the present invention.

[0018] Explanation of reference numerals in the accompanying drawings: 1. Frame; 2. Rotating frame; 21. Rotating seat; 211. Vertical plate; 212. Base plate; 213. Rib plate; 22. Movable plate; 23. First connecting rod; 24. Roller; 25. Second connecting rod; 26. Pressure block; 27. Mounting plate; 3. Guide plate; 4. Lifting assembly; 41. First drive source; 42. Connecting seat; 43. First limiting plate; 431. Arc-shaped surface; 44. Second limiting plate; 5. Second drive source; 6. Positioning block assembly; 61. Positioning block; 7. Guide wheel assembly; 71. Guide wheel. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0020] Example 1, refer to Figures 1-5 As shown, this utility model discloses a clamping and rotating mechanism for an engine cylinder head, comprising: Rack 1; The rotating frame 2 includes a rotating seat 21 and a movable plate 22. Two rotating seats 21 are provided and coaxially rotatably connected to the frame 1. The two rotating seats 21 are connected by at least two first connecting rods 23. The two rotating seats 21 rotate in a vertical plane and each has a through groove extending in the vertical direction. Two movable plates 22 are provided. The two movable plates 22 are movably connected to the two rotating seats 21 in the vertical direction. Each of the two movable plates 22 has a wheel axle that passes horizontally through the through groove next to it. A roller 24 is rotatably connected to the wheel axle. At the same time, at least two second connecting rods 25 are connected between the two movable plates 22. Multiple pressure blocks 26 are provided on the two second connecting rods 25 respectively. There are two guide plates 3. The guide plates 3 are C-shaped plates. The two guide plates 3 are respectively installed on the frame 1 and are coaxial with the rotating seat 21. The lifting assembly 4 has two sets of components, each positioned close to one of the two guide plates 3. It includes a first drive source 41, which is vertically mounted on the frame 1. The output end of the first drive source 41 is connected to a connecting seat 42. The connecting seat 42 has a first limiting plate 43 and a second limiting plate 44 arranged vertically at intervals. The roller 24 is located between the first limiting plate 43 and the second limiting plate 44. The first limiting plate 43 is located in the notch of the guide plate 3 and above the second limiting plate 44. The first limiting plate 43 includes an arc-shaped surface 431, which, together with the side surface of the guide plate 3, forms a complete circumferential surface for the roller 24 to roll. The second drive source 5 has its output end coaxially connected to any rotating seat 21 to drive its rotation.

[0021] Specifically, when the rotating frame 2 is at its initial angle, the output end of the first drive source 41 (which can be a cylinder) extends, lifting the first limiting plate 43, the second limiting plate 44, and the roller 24 located between them to a high position. At this time, the arc-shaped surface of the first limiting plate 43 separates from the arc surface of the C-shaped plate, and the support surface formed by the two is discontinuous. Simultaneously, this action lifts the entire pressing mechanism consisting of the movable plate 22, the second connecting rod 25, the pressure block 26, and the roller 24 upwards, moving the pressure block 26 away from the base plate 212, thus creating space for the cylinder head to be placed.

[0022] After the cylinder head is placed on the base plate 212, the first drive source 41 retracts, causing the first limiting plate 43 to descend. This descent action lowers the clamping mechanism. When the first drive source 41 is fully retracted, the arc-shaped surface of the first limiting plate 43 perfectly aligns with the arc-shaped surface of the C-shaped plate, forming a complete and continuous circumferential outer track surface. At this time, the clamping mechanism precisely clamps the cylinder head, and the roller 24 is tightly attached to this complete circumferential track surface.

[0023] The second drive source 5 drives the rotating frame 2 to rotate as a whole. During rotation, the rollers 24, which are fixedly mounted on the movable plate 22, roll along the aforementioned circumferential track surface. Through the cooperation between the circumferential track and the rollers 24, the entire clamping mechanism is radially supported from the outside during rotation, ensuring absolute stability of the clamping state.

[0024] After rotating to the desired work position and completing the operation, the rotating frame 2 returns to its initial angle. The first drive source 41 extends again, lifting the clamping mechanism, causing the pressure block 26 to loosen the cylinder head, which can then be removed.

[0025] This invention employs the principle of external fixed track constraint. When the clamping mechanism presses down to clamp the cylinder head, the rollers 24 on the movable plate 22 are confined to a complete circumferential track surface formed by the C-shaped guide plate 3 and the first limiting plate 43. Throughout the subsequent rotation, this fixed external track provides strong radial support to the clamping mechanism, completely resisting the overturning moment caused by the cylinder head's weight and rotational inertia. This ensures that there is no loosening or relative displacement between the cylinder head and the clamping mechanism, or between the clamping mechanism and the rotating frame 2, during high-speed rotation or hovering at any angle, resulting in absolutely stable clamping and completely eliminating the safety hazard of workpiece detachment. Furthermore, by driving the rotating frame 2 to rotate via the second drive source 5, automatic and smooth flipping and precise hovering positioning of the engine cylinder head at any angle within the 0-360 degree range can be achieved, facilitating fast and efficient operation for the operator.

[0026] Reference Figure 1 and Figure 2 As shown, the rotating base 21 further includes a vertical plate 211, a base plate 212, and stiffening ribs 213. The vertical plate 211 is vertically arranged and rotatably connected to the frame 1. The base plate 212 is horizontally connected to the vertical plate 211 and located near one end of it. Two symmetrical stiffening ribs 213 connect the base plate 212 and the vertical plate 211. Specifically, the base plate 212 is used to place the engine cylinder head and provide a support surface for the cylinder head. The stiffening ribs 213 can enhance the connection strength between the vertical plate 211 and the base plate 212, improve the load-bearing capacity of the rotating base 21, and prevent structural deformation after the cylinder head is placed.

[0027] Furthermore, it also includes a positioning block group 6, which consists of two groups and is installed on the two base plates 212 respectively. Each positioning block group 6 includes multiple positioning blocks 61 connected to the base plate 212, which are used to quickly and accurately position the engine cylinder head placed on it.

[0028] Furthermore, two sets of guide wheel groups 7 are symmetrically arranged on the two upright plates 211. Each set of guide wheel groups includes at least two guide wheels 71 that are rotatably connected to the upright plate 211 and arranged at intervals in the vertical direction. The movable plate 22 is arranged parallel to the upright plate 211 between the two guide wheel groups 7, and its two sides are respectively rolledly connected to each guide wheel 71 of the two guide wheel groups 7. Specifically, the guide wheels 71 provide guidance for the movement of the movable plate 22, enabling it to move stably in the vertical direction, avoiding swaying or deviation during movement, and reducing friction between the movable plate 22 and the upright plate 211, thus making the movement of the movable plate 22 smoother.

[0029] Furthermore, the guide wheel 71 is a V-shaped wheel, and V-shaped protrusions are respectively provided on both sides of the movable plate 22 to cooperate with the V-shaped wheel. It can be imagined that the cooperation between the V-shaped wheel and the V-shaped protrusions can effectively limit the horizontal displacement of the movable plate 22, further improve the stability of the movement of the movable plate 22, and ensure that the pressure block 26 can be accurately pressed into the designated position on the cylinder head.

[0030] Furthermore, each of the two movable plates 22 is provided with a connecting plate, and the two ends of the second connecting rod 25 are respectively connected to the two connecting plates, and multiple elastic elements are respectively connected between the two connecting plates and their corresponding base plates 212. Specifically, under the action of elastic preload, the micro gaps at the connection points of each component can be eliminated.

[0031] Furthermore, the second connecting rod 25 is equipped with multiple horizontally extending mounting plates 27 on one side. Each mounting plate 27 has vertical threaded holes, and the pressure block 26 is screwed onto these holes via screws. Specifically, the operator can adjust the length of the pressure block 26 extending from the mounting plate 27 by rotating the screws, thereby changing the height of the pressure block 26 and ensuring that it can accurately press against the cylinder head in the appropriate position. This detachable connection method also facilitates the replacement of damaged pressure blocks 26, reducing equipment maintenance costs.

[0032] Furthermore, the clamping block 26 is made of an elastic material. The clamping block 26 is made of an elastic material such as rubber or polyurethane. The elastic material of the clamping block 26 can not only further enhance the protection of the cylinder head surface and prevent damage to the cylinder head, but also increase the friction between the clamping block 26 and the cylinder head surface, improve the reliability of clamping, and prevent the cylinder head from slipping during rotation.

[0033] Furthermore, the frame 1 includes two opposing bases, and two rotating seats 21 are rotatably connected to the two bases respectively.

[0034] In embodiment two, this utility model also discloses a production line, including the clamping and rotating mechanism for engine cylinder heads as in embodiment one.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A clamping and rotating mechanism for an engine cylinder head, characterized in that: include, frame; A rotating frame includes a rotating base and a movable plate. Two rotating bases are coaxially rotatably connected to a frame. The two rotating bases are connected by at least two first connecting rods. The two rotating bases rotate in a vertical plane and each has a through slot extending vertically. Two movable plates are provided and movably connected to the two rotating bases in a vertical direction. Each movable plate has a wheel axle that passes horizontally through its adjacent through slot. A roller is rotatably connected to the wheel axle. At least two second connecting rods are connected between the two movable plates, and multiple pressure blocks are provided on each of the two second connecting rods. There are two guide plates, each with a C-shaped structure. The two guide plates are respectively mounted on the frame and coaxial with the rotating seat. The lifting assembly has two sets of components, each positioned close to one of the two guide plates. It includes a first drive source, which is vertically mounted on a frame. The output end of the first drive source is connected to a connecting seat. The connecting seat has a first limiting plate and a second limiting plate arranged at intervals in the vertical direction. The roller is located between the first and second limiting plates. The first limiting plate is positioned within a notch in the guide plate and above the second limiting plate. The first limiting plate includes an arcuate surface, which, together with the side surface of the guide plate, forms a complete circumferential surface for the roller to roll. The second drive source has its output end coaxially connected to any rotating seat to drive its rotation.

2. The clamping and rotating mechanism for an engine cylinder head according to claim 1, characterized in that: Each rotating seat includes a vertical plate, a bottom plate, and stiffening plates. The vertical plate is vertically arranged and rotatably connected to the frame. The bottom plate is horizontally connected to the vertical plate and located near one end of it. Two symmetrical stiffening plates are connected between the bottom plate and the vertical plate.

3. The clamping and rotating mechanism for an engine cylinder head according to claim 2, characterized in that: It also includes a positioning block group, which consists of two groups and is respectively installed on the two base plates. Each positioning block group includes multiple positioning blocks connected to the base plate for positioning the engine cylinder head.

4. The clamping and rotating mechanism for an engine cylinder head according to claim 2, characterized in that: Two sets of guide wheel groups are symmetrically arranged on the two upright plates. Each set of guide wheel groups includes at least two guide wheels that are rotatably connected to the upright plate and arranged at intervals in the vertical direction. The movable plate is arranged parallel to the upright plate between the two guide wheel groups, and the two sides of the movable plate are respectively rotatably connected to each guide wheel of the two guide wheel groups.

5. The clamping and rotating mechanism for an engine cylinder head according to claim 4, characterized in that: The guide wheel is a V-shaped wheel, and V-shaped protrusions are provided on both sides of the movable plate to cooperate with the V-shaped wheel.

6. The clamping and rotating mechanism for an engine cylinder head according to claim 4, characterized in that: Each of the two movable plates is provided with a connecting plate, and the two ends of the second connecting rod are respectively connected to the two connecting plates, and multiple elastic elements are respectively connected between the two connecting plates and their corresponding base plates.

7. The clamping and rotating mechanism for an engine cylinder head according to claim 1, characterized in that: The second connecting rod is provided with multiple mounting plates that extend horizontally to one side. The mounting plates are provided with vertical threaded holes, and the pressure block is screwed onto the threaded holes by a screw.

8. The clamping and rotating mechanism for an engine cylinder head according to claim 7, characterized in that: The pressure block is made of an elastic material.

9. The clamping and rotating mechanism for an engine cylinder head according to claim 1, characterized in that: The frame includes two opposing bases, and the two rotating seats are rotatably connected to the two bases respectively.

10. A production line, characterized in that: Includes the clamping and rotating mechanism for engine cylinder heads as described in any one of claims 1-9.

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