A polishing device for engine cylinder head machining

Abstract

The utility model relates to mechanical manufacturing technical field, concretely relates to a polishing device for engine cylinder head machining, including bearing platform, the inside fixed connection of bearing platform has fixed establishment, the top fixed connection of bearing platform has lifting mechanism, the bottom mounting of lifting mechanism has polishing mechanism, the fixed establishment includes two pneumatic cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to a grinding device for machining engine cylinder heads. Background Technology

[0002] The grinding device for engine cylinder head machining is a special equipment designed for the precision machining of engine cylinder heads. It is mainly used for grinding key parts of the cylinder head such as the flat surface, air passage, and valve seat.

[0003] Existing technology patent document CN220561078U discloses a grinding device for engine cylinder head processing, comprising: a long block, an electric telescopic rod fixedly connected to the lower middle of the long block, a back box fixedly connected to the drive end of the electric telescopic rod, a fixing block fixedly connected to the middle of the inner wall of the bottom end of the back box, a dual-head motor fixedly connected to the top of the fixing block, a rotating shaft fixedly connected to the drive end of each of the dual-head motors, a first bevel gear fixedly connected to one outer end of each rotating shaft, a second bevel gear meshing with the front of each of the first bevel gears, a cylinder fixedly connected to the front end of each of the second bevel gears, a first grinding roller fixedly connected to the front end of the right cylinder, and a second grinding roller fixedly connected to the front end of the left cylinder. In this utility model, a protective cover is provided that moves up and down with the two grinding rollers to prevent dust from flying and polluting the environment during engine cylinder head grinding.

[0004] The lack of a suitable clamping structure in the existing engine cylinder head machining process makes it impossible to stably fix the cylinder head, and displacement or shaking is likely to occur during grinding, which leads to a decrease in grinding accuracy. For example, unevenness may occur when grinding flat surfaces, and the grinding dimensions of the air passage or valve seat may be deviated, affecting the sealing performance of the cylinder head and cylinder block and the valve fitting accuracy. Therefore, a grinding device for engine cylinder head machining is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a grinding device for engine cylinder head processing, which solves the problem that the lack of a suitable clamping structure for engine cylinder head processing makes it difficult to fix the cylinder head stably, and the cylinder head is prone to displacement or shaking during grinding.

[0006] To achieve the above objectives, this utility model provides a grinding device for machining engine cylinder heads, including a support platform, a fixing mechanism fixedly connected inside the support platform, a lifting mechanism fixedly connected to the top of the support platform, and a grinding mechanism installed at the bottom of the lifting mechanism.

[0007] The fixing mechanism includes two pneumatic cylinders, the bottoms of which are fixedly connected to the inside of the support platform. A slider is fixedly connected to the driving end of each pneumatic cylinder. A connecting rod is slidably connected inside the slider. A connecting assembly is rotatably connected to the other end of the connecting rod. A clamp is fixedly connected to the top of the connecting rod. Multiple limiting grooves are provided on the outside of the support platform. The slider is slidably connected to the inside of the limiting grooves.

[0008] The lifting mechanism includes two support columns, the bottoms of which are fixedly connected to the top of the support platform. Two pneumatic cylinders are fixedly connected to the top of the support platform, and a sliding plate is fixedly connected to the drive end of each pneumatic cylinder.

[0009] The slide plate has tracks at both ends, and the support column is slidably connected to the inside of the tracks.

[0010] The grinding mechanism includes a protective cover, the top of which is fixedly connected to the bottom of the slide plate. A motor is fixedly connected inside the protective cover, and a connecting block is fixedly connected to the drive end of the motor. A fixed cover is rotatably connected to the outside of the connecting block.

[0011] The outer wall of the protective cover is fixedly connected to a connecting plate, and the inside of the connecting plate is rotatably connected to a rotating ring.

[0012] The fixed cover has a second motor fixedly connected inside, and the drive end of the second motor has a grinding ring fixedly connected to it.

[0013] The outer part of the fixed cover is rotatably connected to the inside of the rotating ring, and the top of the connecting block is slidably connected to the bottom of the protective cover.

[0014] The connecting assembly includes a rotating plate, which is rotatably connected to the outside of a plurality of connecting rods. A connecting column is fixedly connected to the top of the rotating plate, and the outside of the connecting column is rotatably connected to the inside of the load-bearing platform.

[0015] 1. In this utility model, when in use, first start the pneumatic cylinder one, drive the slider to slide along the limit groove, pull the connecting rod to make the rotating plate one rotate with the connecting column as the fulcrum, and then link multiple connecting rods to drive the clamp to move synchronously, so as to achieve a stable clamping of the engine cylinder head, ensure that the cylinder head is stable and without displacement, and improve the grinding accuracy.

[0016] 2. In this utility model, the second pneumatic cylinder is then activated, pushing the sliding plate to smoothly rise and fall along the support column via the slide rail, adjusting the distance between the grinding ring and the cylinder head. Next, the first motor is activated, driving the connecting block to rotate, allowing the fixed cover to achieve multi-angle adjustment through the cooperation of the rotating ring and the connecting plate. Finally, the second motor is activated to drive the grinding ring to rotate at high speed, completing the precise grinding operation on the cylinder head. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional schematic diagram of a grinding device for machining engine cylinder heads proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the support platform of a grinding device for machining engine cylinder heads proposed in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0022] In the diagram: 1. Supporting platform; 2. Fixing mechanism; 3. Lifting mechanism; 4. Grinding mechanism; 21. Pneumatic cylinder one; 22. Slider; 23. Limiting groove; 24. Connecting rod; 25. Connecting assembly; 251. Rotating plate one; 252. Connecting column; 26. Clamp; 31. Support column; 32. Pneumatic cylinder two; 33. Slide plate; 34. Slide track; 41. Protective cover; 42. Motor one; 43. Connecting block; 44. Fixing cover; 45. Motor two; 46. Connecting plate; 47. Rotating ring; 48. Grinding ring. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Please see Figures 1-3 This utility model provides a technical solution: a grinding device for processing engine cylinder head, including a support platform 1, a fixing mechanism 2 that can stably clamp and fix the engine cylinder head is fixedly connected inside the support platform 1, a lifting mechanism 3 that can drive the grinding component to adjust its vertical position is fixedly connected to the top of the support platform 1, and a grinding mechanism 4 that can grind the engine cylinder head is installed at the bottom of the lifting mechanism 3.

[0025] The fixing mechanism 2 includes two pneumatic cylinders 21. The bottom of the two pneumatic cylinders 21 is fixedly connected to the inside of the support platform 1 to ensure stable installation. The drive end of the pneumatic cylinder 21 is fixedly connected to a slider 22 that can transmit power and slide. The inside of the slider 22 is slidably connected to a connecting rod 24 that can transmit tension and drive the movement of subsequent components. The other end of the connecting rod 24 is rotatably connected to a connecting component 25 that can coordinate the synchronous movement of multiple connecting rods 24. The top of the connecting rod 24 is fixedly connected to a clamp 26 that can directly contact and clamp the engine cylinder head. The outside of the support platform 1 is provided with multiple limiting grooves 23 that can limit the sliding trajectory of the slider 22 to ensure the accuracy of movement. The outside of the slider 22 is slidably connected to the inside of the limiting grooves 23, so that the slider 22 moves stably along a fixed path.

[0026] The connecting assembly 25 includes a rotating plate 251, which is rotatably connected to the outside of multiple connecting rods 24. When the rotating plate 251 rotates, it can simultaneously drive the multiple connecting rods 24 to move. The top of the rotating plate 251 is fixedly connected to a connecting column 252 that can provide a fulcrum for the rotation of the rotating plate 251. The outside of the connecting column 252 is rotatably connected to the inside of the support platform 1, so that the rotating plate 251 can rotate stably around the connecting column 252 as the center, ensuring that the multiple clamps 26 move synchronously and improving the fixing effect on the engine cylinder head.

[0027] like Figure 1 and Figure 2 As shown, the lifting mechanism 3 includes two support columns 31. The bottom of the two support columns 31 is fixedly connected to the top of the support platform 1 to ensure structural stability. The top of the support platform 1 is fixedly connected to two pneumatic cylinders 32 that provide power for the lifting action. The drive end of the pneumatic cylinders 32 is fixedly connected to a slide plate 33 that can drive the grinding mechanism 4 to move up and down. The sliding plate 33 is lifted and lowered by the extension and retraction of the pneumatic cylinders 32, thereby adjusting the distance between the grinding mechanism 4 and the engine cylinder head.

[0028] Both ends of the slide plate 33 are provided with slide rails 34 that can cooperate with the support column 31 to achieve sliding guidance. The outside of the support column 31 is slidably connected to the inside of the slide rail 34, so that the slide plate 33 can rise and fall smoothly in the vertical direction under the restriction of the support column 31, avoiding deviation that affects the grinding accuracy.

[0029] The grinding mechanism 4 includes a protective cover 41. The top of the protective cover 41 is fixedly connected to the bottom of the slide plate 33 and rises and falls together with the slide plate 33. The inside of the protective cover 41 is fixedly connected to a motor 42 that provides power for adjusting the grinding angle. The drive end of the motor 42 is fixedly connected to a connecting block 43 that can transmit power and drive related components to rotate. The outside of the connecting block 43 is rotatably connected to a fixed cover 44 that can install grinding components and rotate with the connecting block 43. The motor 42 drives the connecting block 43 to rotate, thereby changing the angle of the fixed cover 44 to adapt to different grinding needs.

[0030] The outer wall of the protective cover 41 is fixedly connected to a connecting plate 46 that can provide auxiliary support and coordinate with angle adjustment. The inner side of the connecting plate 46 is rotatably connected to a rotating ring 47 that can rotate with the fixed cover 44 and play an auxiliary guiding role, so that the rotation of the fixed cover 44 is more stable and smooth.

[0031] The inside of the fixed cover 44 is fixedly connected to a second motor 45 that can provide power for the grinding action. The drive end of the second motor 45 is fixedly connected to a grinding ring 48 that can directly contact the engine cylinder head and perform grinding operations. The second motor 45 drives the grinding ring 48 to rotate at high speed to realize the grinding process of the engine cylinder head.

[0032] The outer part of the fixed cover 44 is rotatably connected to the inside of the rotating ring 47, so that the fixed cover 44 can be stably supported by the rotating ring 47 when rotating. The top of the connecting block 43 is slidably connected to the bottom of the protective cover 41, ensuring that the connecting block 43 operates stably during rotation and ensuring the accuracy of angle adjustment.

[0033] Working principle: When using the grinding device for engine cylinder head processing, firstly, the pneumatic cylinder 21 in the fixing mechanism 2 is activated. Its driving end will drive the slider 22 to slide smoothly along the limiting groove 23 outside the support platform 1. The limiting groove 23 forms a precise constraint on the sliding trajectory of the slider 22, ensuring stable movement direction. When the slider 22 moves, it will pull the connecting rod 24 connected to it, causing the rotating plate 251 in the connecting assembly 25 at the other end of the connecting rod 24 to rotate with the connecting column 252 as the fulcrum. This rotation can synchronously pull multiple connecting rods 24 to move in coordination, thereby driving the clamps 26 at the top of each connecting rod 24 to move closer to each other and slide precisely, finally tightly fitting the surface of the engine cylinder head from multiple directions, achieving firm clamping, effectively preventing displacement of the cylinder head during grinding, and ensuring processing accuracy.

[0034] After fixing is completed, the second pneumatic cylinder 32 in the lifting mechanism 3 is activated. Its drive end pushes the slide plate 33 to slide along the support column 31. The slide rails 34 at both ends of the slide plate 33 are tightly engaged with the support column 31 to ensure that the slide plate 33 is lifted vertically without deviation. This drives the grinding ring 48 in the bottom grinding mechanism 4 to move precisely to the position close to the engine cylinder head to be ground. Then, the first motor 42 of the grinding mechanism 4 is activated. Its drive end drives the connecting block 43 to rotate. The top of the connecting block 43 slides smoothly along the bottom of the protective cover 41, while driving the fixed cover 44 to rotate synchronously. The outside of the fixed cover 44 rotates smoothly in the rotating ring 47 in the connecting plate 46. With the auxiliary support of the rotating ring 47, the fixed cover 44 and the grinding ring 48 can be flexibly adjusted at multiple angles to adapt to the grinding needs of different parts of the cylinder head. Finally, the second motor 45 in the fixed cover 44 is activated to drive the grinding ring 48 to rotate at high speed. Combined with angle adjustment and lifting control, the engine cylinder head is subjected to comprehensive, precise and efficient grinding.

[0035] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A grinding device for machining engine cylinder heads, comprising a lower support platform, characterized in that: The support platform is internally fixedly connected to a fixing mechanism, and a lifting mechanism is fixedly connected to the top of the support platform. A grinding mechanism is installed at the bottom of the lifting mechanism. The fixing mechanism includes two pneumatic cylinders, the bottoms of which are fixedly connected to the inside of the support platform. A slider is fixedly connected to the driving end of each pneumatic cylinder. A connecting rod is slidably connected inside the slider. A connecting assembly is rotatably connected to the other end of the connecting rod. A clamp is fixedly connected to the top of the connecting rod. Multiple limiting grooves are provided on the outside of the support platform. The slider is slidably connected to the inside of the limiting grooves.

2. The grinding device for machining engine cylinder heads according to claim 1, characterized in that: The lifting mechanism includes two support columns, the bottoms of which are fixedly connected to the top of the support platform. Two pneumatic cylinders are fixedly connected to the top of the support platform, and a sliding plate is fixedly connected to the drive end of each pneumatic cylinder.

3. The grinding device for machining engine cylinder heads according to claim 2, characterized in that: The slide plate has tracks at both ends, and the support column is slidably connected to the inside of the tracks.

4. The grinding device for machining engine cylinder heads according to claim 3, characterized in that: The grinding mechanism includes a protective cover, the top of which is fixedly connected to the bottom of the slide plate. A motor is fixedly connected inside the protective cover, and a connecting block is fixedly connected to the drive end of the motor. A fixed cover is rotatably connected to the outside of the connecting block.

5. A grinding device for machining engine cylinder heads according to claim 4, characterized in that: A connecting plate is fixedly connected to the outer wall of the protective cover, and a rotating ring is rotatably connected inside the connecting plate.

6. A grinding device for machining engine cylinder heads according to claim 4, characterized in that: A second motor is fixedly connected inside the fixed cover, and a grinding ring is fixedly connected to the drive end of the second motor.

7. A grinding device for machining engine cylinder heads according to claim 5, characterized in that: The outer part of the fixed cover is rotatably connected to the inside of the rotating ring, and the top of the connecting block is slidably connected to the bottom of the protective cover.

8. The grinding device for machining engine cylinder heads according to claim 1, characterized in that: The connecting assembly includes a rotating plate, the interior of which is rotatably connected to the exterior of a plurality of connecting rods. A connecting column is fixedly connected to the top of the rotating plate, and the exterior of the connecting column is rotatably connected to the interior of the load-bearing platform.

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