A compressor valve plate polishing device

Abstract

The utility model discloses a compressor valve piece polishing device, including base, the upper end right side fixed mounting of base has the vertical board, the right -hand end fixed mounting of vertical board has first electric jar, the output of first electric jar swing joint has grinding wheel, the upper end left side fixed mounting of base has L shape frame, the right -hand end downside fixed mounting of L shape frame has fixed plate, the upper end of fixed plate is swing joint with carousel through the pivot, aims at solving the problem of polishing uneven. Its technical scheme main point is: a compressor valve piece polishing device. The utility model utilizes the arc -shaped groove structure that has on valve piece, is realized to valve piece circumferential position angle's accurate locking through adjustable arc -shaped positioning insert block and cooperation, and the positioning column of cooperation center carries out radial positioning, and the common action of both, has guaranteed that the position of valve piece is completely consistent each time clamping, has solved the problem of partial over -grinding or under -grinding because of the jumping thoroughly, has improved the uniformity of polishing significantly.

Description

Technical Field

[0001] This utility model relates to the field of compressor valve plate technology, and more specifically, it relates to a compressor valve plate grinding device. Background Technology

[0002] A compressor valve plate grinding device is a specialized piece of equipment used for surface finishing of valve plates (including intake and exhaust valve plates), the core components of a compressor. Its main function is to remove minute burrs, machining marks, or deformed layers from the valve plate surface through mechanical grinding, polishing, or other methods. This allows for precise control of surface flatness, roughness, parallelism, and edge geometry, ensuring a high-precision airtight seal between the valve plate and the valve seat.

[0003] When the compressor valve plate grinding device grinds the outer surface of the valve plate, the valve plate needs to rotate rapidly to adjust its position for easy grinding. However, at high speed, it also generates a significant centrifugal force, which attempts to "throw" the valve plate away from the center of rotation, resulting in radial displacement or jumping. The displacement causes the contact pressure between the grinding tool and the edge of the valve plate to fluctuate, resulting in local over-grinding or under-grinding, and uneven grinding.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a compressor valve plate grinding device, which aims to solve the technical problem of uneven valve plate grinding.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a compressor valve plate grinding device, comprising a base, a vertical plate fixedly installed on the upper right side of the base, a first electric cylinder fixedly installed on the right end of the vertical plate, a grinding wheel movably connected to the output end of the first electric cylinder, an L-shaped frame fixedly installed on the upper left side of the base, a fixing plate fixedly installed on the lower right side of the L-shaped frame, a turntable movably connected to the upper end of the fixing plate via a rotating shaft, a positioning post fixedly installed on the middle side of the upper end of the turntable, and the upper left and right sides of the turntable... A through slot is provided on both sides, and a limit rod is fixedly installed in the through slot. A slider is movably connected to the outer surface of each of the two limit rods. The slider slides in the through slot and fits against the slot wall. An arc-shaped positioning block is fixedly installed on the top of the slider. A second electric cylinder is fixedly installed on the top of the L-shaped frame. A movable plate is fixedly installed on the output end of the second electric cylinder. A servo motor is fixedly installed on the upper middle side of the movable plate. A U-shaped plate is fixedly installed on the output end of the servo motor. A circular clamping plate is fixedly installed on the lower end of the U-shaped plate.

[0007] The present invention is further configured such that: a guide rod is fixedly installed on the upper right side of the movable plate, and the guide rod and the L-shaped frame are movably interlocked.

[0008] The present invention is further configured such that: a circular through hole is provided on the middle side of the upper end of the circular clamping plate, and a spiral groove is provided on both the left and right sides of the upper end of the circular clamping plate; the inner diameter of the circular through hole is the same as the diameter of the positioning post.

[0009] The present invention is further configured such that the center lines of the circular clamp and the turntable coincide.

[0010] In summary, this utility model has the following beneficial effects:

[0011] By utilizing the existing arc-shaped groove structure on the valve plate and cooperating with an adjustable arc-shaped positioning block, precise locking of the circumferential position angle of the valve plate is achieved. Combined with the central positioning post for radial positioning, the two work together to ensure that the valve plate is always clamped in the same position. When the circular through hole of the circular chuck is aligned with and fitted into the positioning post on the turntable by the second electric cylinder, the circular chuck and the turntable stably press the valve plate onto the turntable, completing the axial clamping of the workpiece. This fundamentally eliminates the "skewness" or "deflection" of the valve plate caused by inaccurate manual clamping or mechanical positioning, thereby avoiding the periodic jumping caused by centrifugal force during high-speed rotation. The elimination of jumping directly ensures that the contact pressure between the grinding wheel and the outer surface of the valve plate is constant, completely solving the problem of local over-grinding or under-grinding caused by jumping, and significantly improving the uniformity of grinding. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the grinding device of this utility model;

[0013] Figure 2 This is a schematic diagram of the turntable and positioning column of this utility model.

[0014] In the diagram: 1. Base; 2. Vertical plate; 3. First electric cylinder; 4. Grinding wheel; 5. L-shaped frame; 6. Fixing plate; 7. Turntable; 8. Positioning post; 9. Through slot; 10. Limiting rod; 11. Slider; 12. Arc-shaped positioning block; 13. Second electric cylinder; 14. Movable plate; 15. Servo motor; 16. U-shaped plate; 17. Circular clamp; 18. Guide rod; 19. Circular through hole; 20. U-shaped groove. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0016] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] A compressor valve plate grinding device, such as Figures 1 to 2 As shown, the system includes a base 1, a vertical plate 2 fixedly mounted on the upper right side of the base 1, a first electric cylinder 3 fixedly mounted on the right end of the vertical plate 2, a grinding wheel 4 movably connected to the output end of the first electric cylinder 3, an L-shaped frame 5 fixedly mounted on the upper left side of the base 1, a fixing plate 6 fixedly mounted on the lower right side of the L-shaped frame 5, a turntable 7 movably connected to the upper end of the fixing plate 6 via a rotating shaft, a positioning post 8 fixedly mounted on the middle side of the upper end of the turntable 7, and a through groove 9 opened on both the left and right sides of the upper end of the turntable 7. A limit rod 10 is fixedly mounted in the through groove 9, and a slider 11 is movably connected to the outer surface of each of the two limit rods 10. The slider 11 slides in the through groove 9 and is in contact with the groove wall of the through groove 9. The top of the slider 11... An arc-shaped positioning block 12 is fixedly installed. A second electric cylinder 13 is fixedly installed on the top of the L-shaped frame 5. A movable plate 14 is fixedly installed at the output end of the second electric cylinder 13. A servo motor 15 is fixedly installed on the upper middle side of the movable plate 14. A U-shaped plate 16 is fixedly installed at the output end of the servo motor 15. A circular clamping plate 17 is fixedly installed at the lower end of the U-shaped plate 16. Two sliders 11 can slide independently on the limiting rod 10, so that the distance between the two arc-shaped positioning blocks 12 can be flexibly adjusted. This design allows the device to adapt to compressor valve plates of different models and different arc groove distances. It has strong versatility and does not require replacement of the fixture body. Only the slider position needs to be finely adjusted, which facilitates the production of multiple varieties.

[0020] like Figure 1As shown, a guide rod 18 is fixedly installed on the upper right side of the movable plate 14. The guide rod 18 and the L-shaped frame 5 are movably interlocked. The guide rod 18 provides precise and stable linear guidance for the lifting and lowering movement of the movable plate 14, preventing it from shaking, deviating or rotating during the movement.

[0021] like Figure 1 As shown, a circular through hole 19 is provided on the middle side of the upper end of the circular clamping plate 17. A spiral groove 20 is provided on both the left and right sides of the upper end of the circular clamping plate 17. The inner diameter of the circular through hole 19 is the same as the diameter of the positioning post 8. The circular through hole 19 cooperates with the positioning post 8 on the turntable 7 to achieve precise centering and coaxial positioning between the circular clamping plate 17 and the turntable 7. It is a key structure to ensure the coaxiality of the system.

[0022] The center lines of the circular clamp 17 and the turntable 7 coincide.

[0023] Working principle: The compressor valve plate to be polished is placed on the turntable 7. The positioning hole in the center of the valve plate is fitted into the positioning post 8 on the upper side of the turntable 7. At the same time, the position of the arc-shaped positioning block 12 can be manually adjusted by sliding the slider 11 on the limit rod 10, so that the two arc-shaped positioning blocks 12 are inserted into the arc-shaped groove on the surface of the valve plate to achieve axial and radial positioning of the valve plate.

[0024] The second electric cylinder 13 is activated, and its output end drives the movable plate 14 to move downward. The movable plate 14 drives the servo motor 15, U-shaped plate 16, and circular clamping plate 17 to move downward as a whole. When the circular through hole 19 of the circular clamping plate 17 is aligned with and fitted into the positioning post 8 on the turntable 7, the lower surface of the circular clamping plate 17 contacts the upper surface of the valve plate to be processed. Through the continuous pressure applied by the second electric cylinder 13, the circular clamping plate 17 stably presses the valve plate onto the turntable 7, completing the axial clamping of the workpiece. During this process, since the axis of the circular clamping plate 17 and the turntable 7 coincide, and the positioning post 8 passes through the through holes of the valve plate, the turntable 7, and the circular clamping plate 17, the coaxiality of the entire clamping system is ensured, avoiding eccentric clamping. At the same time, the upper part of the arc-shaped positioning block 12 enters the U-shaped groove 20 to prevent the arc-shaped positioning block 12 from interfering with the clamping force of the circular clamping plate 17 on the valve plate.

[0025] After clamping is completed, the servo motor 15 is started. The output end of the servo motor 15 drives the circular chuck 17 and the clamped valve plate to rotate together through the U-shaped plate 16. Since the circular chuck 17 is rigidly connected to the servo motor 15 through the U-shaped plate 16 and the servo motor 15 is fixed on the movable plate 14, the rotation power of the valve plate comes directly from the servo motor 15. The turntable 7 itself is movably connected to the fixed plate 6 through the rotating shaft. It does not actively drive the rotation, but serves as a support base for the clamped workpiece. The rotation of the valve plate is driven by the servo motor 15 and the circular chuck 17 above, realizing the position adjustment required when grinding the outer surface of the valve plate.

[0026] With the valve plate fully positioned and rotating stably, the first electric cylinder 3 is activated to push the grinding wheel 4 to the left. The rotating grinding wheel 4 is driven by the motor to contact the outer surface of the rotating valve plate for precise surface grinding.

[0027] After grinding is completed, the first electric cylinder 3 retracts the grinding wheel 4, and the second electric cylinder 13 rises, driving the movable plate 14, servo motor 15, U-shaped plate 16 and circular chuck 17 to move upward as a whole, loosening the clamping of the valve plate, and the operator can then remove the processed valve plate.

[0028] In summary, this device utilizes the existing arc-shaped groove structure on the valve plate and cooperates with the adjustable arc-shaped positioning block 12 to achieve precise locking of the circumferential position angle of the valve plate. Combined with the central positioning pin 8 for radial positioning, the two work together to ensure that the valve plate is always clamped in the same position. When the second electric cylinder 13 pushes the circular through-hole 19 of the circular clamping plate 17 to align with and fit into the positioning pin 8 on the turntable 7, the circular clamping plate 17, in conjunction with the turntable 7, stably presses the valve plate onto the turntable 7, completing the axial clamping of the workpiece. This fundamentally eliminates the "skewness" or "deflection" of the valve plate caused by inaccurate manual clamping or mechanical positioning, thus avoiding periodic jumping caused by centrifugal force during high-speed rotation. The elimination of jumping directly ensures that the contact pressure between the grinding wheel 4 and the outer surface of the valve plate is constant, completely solving the problem of local over-grinding or under-grinding caused by jumping, and significantly improving the uniformity of grinding.

[0029] It is worth noting that the servo motor 15 disclosed in the above embodiments is specifically a Panasonic MI NAS A6 series, and the first electric cylinder 3 and the second electric cylinder 13 are specifically Festo EGC series. The external control switch group and the external power supply control the operation of the servo motor 15, the first electric cylinder 3 and the second electric cylinder 13 using methods commonly used in the prior art.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A compressor valve plate grinding device, comprising a base (1), wherein a vertical plate (2) is fixedly installed on the upper right side of the base (1), and a first electric cylinder (3) is fixedly installed on the right end of the vertical plate (2), wherein a grinding wheel (4) is movably connected to the output end of the first electric cylinder (3), characterized in that: An L-shaped frame (5) is fixedly installed on the upper left side of the base (1). A fixing plate (6) is fixedly installed on the lower right side of the L-shaped frame (5). A turntable (7) is movably connected to the upper end of the fixing plate (6) via a rotating shaft. A positioning post (8) is fixedly installed on the middle side of the upper end of the turntable (7). A through groove (9) is opened on both the left and right sides of the upper end of the turntable (7). A limit rod (10) is fixedly installed in the through groove (9). A slider (11) is movably connected to the outer surface of each of the two limit rods (10). The slider (11) slides in the through groove (9) and is in contact with the groove wall of the through groove (9). An arc-shaped positioning block (12) is fixedly installed on the top of the slider (11). A second electric cylinder (13) is fixedly installed on the top of the L-shaped frame (5). A movable plate (14) is fixedly installed at the output end of the second electric cylinder (13). A servo motor (15) is fixedly installed on the upper middle side of the movable plate (14). A U-shaped plate (16) is fixedly installed at the output end of the servo motor (15). A circular clamp (17) is fixedly installed at the lower end of the U-shaped plate (16).

2. The compressor valve plate grinding device according to claim 1, characterized in that: A guide rod (18) is fixedly installed on the upper right side of the movable plate (14), and the guide rod (18) and the L-shaped frame (5) are movably interlocked.

3. The compressor valve plate grinding device according to claim 1, characterized in that: A circular through hole (19) is provided on the middle side of the upper end of the circular chuck (17). A spiral groove (20) is provided on both the left and right sides of the upper end of the circular chuck (17). The inner diameter of the circular through hole (19) is the same as the diameter of the positioning post (8).

4. The compressor valve plate grinding device according to claim 1, characterized in that: The center lines of the circular clamp (17) and the turntable (7) coincide.

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