Piston ring fixing frame for piston ring machining

By designing a piston ring holder, a servo motor and gear system are used to achieve synchronous clamping and grinding of multiple piston rings, solving the problems of low grinding efficiency of a single piston ring and time-consuming clamping of multiple piston rings, thus improving the overall efficiency of piston ring grinding.

CN223889658UActive Publication Date: 2026-02-10TIANJIN JINGXIN MECHANICAL EQUIP MFG CO LTD
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Patent Information

Application Number
CN202520084082.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-02-10
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

In the existing technology, grinding a single piston ring is inefficient, and holding multiple piston rings requires a lot of manpower and takes a long time, resulting in low overall grinding efficiency.

Method used

A piston ring holder is used, and a second servo motor drives the active gear and driven gear to mesh. The rotating rod and rotating ring disk drive the sliding rod and clamping ring block to move, so as to realize the synchronous clamping of multiple piston rings. The grinding rod is driven to rotate by the servo motor and cylinder for grinding.

Benefits of technology

This technology enables simultaneous clamping and grinding of multiple piston rings, improving piston ring grinding efficiency, reducing manpower consumption and clamping time, and enhancing overall grinding efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of piston ring machining, and particularly relates to a piston ring fixing frame for piston ring machining, which comprises a base, a connecting rod fixedly connected to the top of the base, a top plate fixedly connected to one end of the connecting rod, an air cylinder fixedly connected to the top of the top plate, and an output end of the air cylinder penetrating through the top plate and fixedly connected with a connecting plate. A driving gear is driven to rotate through operation of a second servo motor, a rotating rod and a rotating ring disc can rotate through mutual meshing of the driving gear and a driven gear, then a sliding rod is pushed and extruded through a wire arc-shaped groove, the sliding rod can drive a clamping ring block to move in a limiting hollow ring block, and the clamping ring block is clamped in the limiting hollow ring block. According to the clamping device for the piston rings, clamping of the piston rings is achieved, the multiple piston rings can be clamped and fixed at a time, grinding of the multiple piston rings at a time is achieved, and therefore the grinding efficiency of the multiple piston rings is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of piston ring processing, specifically a piston ring fixing bracket for piston ring processing. Background Technology

[0002] Piston rings are elastic metal rings installed in piston ring grooves. They can be stretched outwards to fit snugly against the cylinder wall. The main functions of piston rings include sealing, oil control, heat conduction, and guidance (support). The sealing function prevents combustion chamber gases from leaking into the crankcase. The oil control function removes excess oil from the cylinder wall and maintains normal oil consumption. The heat conduction function transfers heat from the piston to the cylinder liner for cooling. The guiding function prevents the piston from directly contacting the cylinder wall and ensures smooth piston movement.

[0003] In existing technologies, piston rings often require multiple processes during manufacturing, including casting or forging, heat treatment, and grinding. Grinding primarily removes rough particles from the piston ring's interior, ensuring it can be smoothly installed onto the piston surface. When grinding the inner side of the piston ring, the outer side usually needs to be fixed and clamped to limit its movement during grinding. However, typically, before grinding, workers need to rotate a screw to clamp the piston ring. Continuously rotating the screw is not only cumbersome but also slows down the movement of the clamping ring, reducing the efficiency of limiting the piston ring's movement. Furthermore, workers can only grind a single piston ring at a time. Even with multiple grinding rods to grind multiple piston rings simultaneously, clamping multiple rings still requires significant manpower and time, further reducing the overall grinding efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing technology, workers can only grind a single piston ring at a time. Even if multiple grinding rods are set up to grind multiple piston rings at once, clamping multiple piston rings still requires a lot of manpower and increases the time required to clamp multiple piston rings, thus reducing the efficiency of piston ring grinding. This utility model proposes a piston ring fixing bracket for piston ring processing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a piston ring fixing bracket for piston ring processing, including a base, a connecting rod fixedly connected to the top of the base, a top plate fixedly connected to one end of the connecting rod, a cylinder fixedly connected to the top of the top plate, the output end of the cylinder passing through the top plate and fixedly connected to a connecting plate, a first servo motor fixedly connected to the bottom of the connecting plate, a grinding rod fixedly connected to the output end of the first servo motor, and a synchronous clamping mechanism provided on the top of the base;

[0006] The synchronous clamping mechanism includes a second servo motor, the bottom of which is fixedly connected to the top of the base. A drive gear is fixedly connected to the output end of the second servo motor. A rotating rod is rotatably connected to the top of the base. A driven gear is fixedly connected to the surface of the rotating rod. The teeth of the drive gear mesh with the teeth of the driven gear. A rotating ring is fixedly connected to one end of the rotating rod. A guide arc groove is formed on the top of the rotating ring. A fixing rod is fixedly connected to the top of the base. A limiting hollow block is fixedly connected to one end of the fixing rod. A sliding rod is slidably connected to the inner cavity of the limiting hollow block. The surface of the sliding rod is slidably connected to the inner cavity of the guide arc groove. A clamping ring block is fixedly connected to one end of the sliding rod.

[0007] Preferably, a fixing plate is fixedly connected to the surface of the base, a limiting groove is formed on the surface of the driven gear, a limiting block is fixedly connected to one side of the fixing plate, the surface of the limiting block is slidably connected to the inner cavity of the limiting groove, and the top of the fixing plate is fixedly connected to the bottom of the limiting hollow block.

[0008] Preferably, a limiting hollow ring block is fixedly connected to the top of the base, and a slider is fixedly connected to the bottom of the drive gear. The surface of the slider is slidably connected to the inner cavity of the limiting hollow ring block.

[0009] Preferably, the inner cavity of the limiting hollow block is fixedly connected to a limiting rod, and the inner cavity of the slide rod is slidably connected to the surface of the limiting rod.

[0010] Preferably, a reinforcing ring block is fixedly connected to the top of the base, and the inner cavity of the reinforcing ring block is rotatably connected to the surface of the rotating rod.

[0011] Preferably, an air inlet pipe is fixedly connected to the inner cavity of the top plate, and an air pump and a connecting block are fixedly connected to the surface of the air inlet pipe. The bottom of the air pump is fixedly connected to the top of the top plate, and an air jet pipe is fixedly connected to the inner cavity of the connecting block. Several air jet pipes are provided.

[0012] Preferably, a pad and a rubber layer are movably bonded to one side of the clamping ring block, and the top of the pad is fixedly connected to the bottom of the rubber layer.

[0013] The advantages of this utility model are:

[0014] This invention utilizes a second servo motor to drive a rotating drive gear. The meshing of the drive and driven gears causes the rotating rod and rotating ring disc to rotate. Then, a guide wire arc groove pushes a sliding rod, which moves a clamping ring block within the limiting hollow ring block, thus clamping the piston ring. This allows for the simultaneous clamping and fixing of multiple piston rings, enabling simultaneous grinding of multiple piston rings. This significantly increases the efficiency of grinding multiple piston rings, solving the problems of traditional piston ring grinding where workers can only grind a single piston ring at a time, and even with multiple grinding rods, the clamping of multiple piston rings still requires significant manpower and time, reducing grinding efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the base and the polishing rod of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the limiting hollow ring block and slider of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fixing rod and the guide arc groove of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing plate and clamping ring block of this utility model;

[0020] Figure 5 This is a schematic diagram of the limiting rod and pad of this utility model.

[0021] In the diagram: 1. Base; 2. Connecting rod; 3. Top plate; 4. Cylinder; 5. Connecting plate; 6. First servo motor; 7. Grinding rod; 8. Synchronous clamping mechanism; 801. Second servo motor; 802. Drive gear; 803. Rotating rod; 804. Driven gear; 805. Rotating ring disk; 806. Guide arc groove; 807. Fixed rod; 808. Limiting hollow block; 809. Slide rod; 810. Clamping ring block; 9. Limiting hollow ring block; 10. Slider; 11. Limiting rod; 12. Air inlet pipe; 13. Air pump; 14. Connecting block; 15. Jet pipe; 16. Fixed plate; 17. Limiting block; 18. Limiting groove; 19. Reinforcing ring block; 20. Pad block; 21. Rubber layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a piston ring holder for piston ring processing. (Refer to...) Figure 1 and Figure 5 A piston ring fixing bracket for piston ring processing includes a base 1, a connecting rod 2 fixedly connected to the top of the base 1, a top plate 3 fixedly connected to one end of the connecting rod 2, a cylinder 4 fixedly connected to the top of the top plate 3, the output end of the cylinder 4 passing through the top plate 3 and fixedly connected to a connecting plate 5, a first servo motor 6 fixedly connected to the bottom of the connecting plate 5, a grinding rod 7 fixedly connected to the output end of the first servo motor 6, and a synchronous clamping mechanism 8 provided on the top of the base 1.

[0025] The synchronous clamping mechanism 8 includes a second servo motor 801. The bottom of the second servo motor 801 is fixedly connected to the top of the base 1. The output end of the second servo motor 801 is fixedly connected to a drive gear 802. The top of the base 1 is rotatably connected to a rotating rod 803. The surface of the rotating rod 803 is fixedly connected to a driven gear 804. The teeth of the drive gear 802 mesh with the teeth of the driven gear 804. One end of the rotating rod 803 is fixedly connected to a rotating ring disk 805. The top of the rotating ring disk 805 is provided with a guide arc groove 806. The top of the base 1 is fixedly connected to a fixing rod 807. One end of the fixing rod 807 is fixedly connected to a limiting hollow block 808. The inner cavity of the limiting hollow block 808 is slidably connected to a sliding rod 809. The surface of the sliding rod 809 is slidably connected to the inner cavity of the guide arc groove 806. One end of the sliding rod 809 is fixedly connected to a clamping ring block 810.

[0026] The base 1 can be connected to the top plate 3 via the connecting rod 2. The cylinder 4 connected to the top of the top plate 3 can drive the connecting plate 5 and the first servo motor 6 to move up and down through its own operation. When the first servo motor 6 is operating, it can drive the grinding rod 7 to rotate, thereby grinding the inner side of the piston ring that needs to be ground. When the second servo motor 801 is operating, it can smoothly drive the drive gear 802 to rotate. When the drive gear 802 rotates, it can drive the driven gear 804 to rotate together through its meshing with the driven gear 804. At this time, since the driven gear 804 is fixedly connected to the rotating rod 803, and the rotating ring disk 805 is also fixedly connected to the rotating rod 803, the driven gear 804 can smoothly drive the rotating ring disk 805 to rotate when it rotates.

[0027] Furthermore, the fixing rod 807 can connect to the limiting hollow block 808, and the sliding rod 809 sliding inside the limiting hollow block 808 can realize the installation of the clamping ring block 810. The sliding connection between the sliding rod 809 and the guide arc groove 806 allows the sliding rod 809 to be smoothly pushed by the guide arc groove 806 when the rotating ring disk 805 rotates. Because the sliding rod 809 slides inside the limiting hollow block 808, the sliding rod 809 can drive the clamping ring block 810 forward through the rotation of the rotating ring disk 805. The clamping ring block 810 moves to a certain distance and can clamp and limit the piston ring that needs to be polished. At the same time, there are multiple rotating rods 803, driven gears 804, rotating ring disks 805, guide arc grooves 806, fixing rods 807, limiting hollow blocks 808, sliding rods 809 and clamping ring blocks 810, and their number is the same as the number of polishing rods 7. This allows the operator to smoothly clamp and polish multiple piston rings at one time, thereby greatly improving the efficiency of polishing the inner side of the piston ring.

[0028] Reference Figure 2 and Figure 5 A fixing plate 16 is fixedly connected to the surface of the base 1. A limiting groove 18 is formed on the surface of the driven gear 804. A limiting block 17 is fixedly connected to one side of the fixing plate 16. The surface of the limiting block 17 is slidably connected to the inner cavity of the limiting groove 18. The top of the fixing plate 16 is fixedly connected to the bottom of the limiting hollow block 808. The fixing plate 16 can play the role of installing and fixing the limiting block 17, while the limiting block 17 can play a certain role of limiting and supporting the driven gear 804 by using the limiting groove 18. This makes the driven gear 804 not only stable enough when rotating, but also less prone to tilting. It is also more stable during use and less prone to sliding down. In addition, the fixing plate 16 can also support and fix the limiting hollow block 808, further increasing the stability of the limiting hollow block 808 during use.

[0029] Reference Figure 2 The top of the base 1 is fixedly connected to a limiting hollow ring block 9, and the bottom of the drive gear 802 is fixedly connected to a slider 10. The surface of the slider 10 is slidably connected to the inner cavity of the limiting hollow ring block 9. The limiting hollow ring block 9 can limit the rotation of the drive gear 802 through the slider 10, so that the drive gear 802 can be stable when rotating. The slider 10 can also support the drive gear 802, effectively increasing the stability of the drive gear 802 during use and reducing the possibility of tilting or shaking.

[0030] Reference Figure 5 The inner cavity of the limiting hollow block 808 is fixedly connected to the limiting rod 11, and the inner cavity of the slide rod 809 is slidably connected to the surface of the limiting rod 11. The limiting rod 11 can limit the sliding of the slide rod 809 through its connection with the limiting hollow block 808, so that the slide rod 809 can be stable enough during the sliding process and is not easy to deviate or tilt during the sliding, thereby greatly increasing the stability of the clamping ring block 810 when it moves.

[0031] Reference Figure 4 and Figure 5 A reinforcing ring 19 is fixedly connected to the top of the base 1. The inner cavity of the reinforcing ring 19 is rotatably connected to the surface of the rotating rod 803. The reinforcing ring 19 can support and limit the rotating rod 803 by using its fixed connection with the base 1, so that the rotating rod 803 is not easy to tilt or shake during rotation, which greatly increases the stability of the guide arc groove 806 and the clamping ring 810 during use.

[0032] Reference Figure 1 and Figure 2An air inlet pipe 12 is fixedly connected to the inner cavity of the top plate 3. An air pump 13 and a connecting block 14 are fixedly connected to the surface of the air inlet pipe 12. The bottom of the air pump 13 is fixedly connected to the top of the top plate 3. An air jet pipe 15 is fixedly connected to the inner cavity of the connecting block 14. Several air jet pipes 15 are provided. When the air pump 13 is in operation, it can pump external air into the interior of the connecting block 14 through the air inlet pipe 12 and pump the air inside the connecting block 14 to the outside through the air jet pipe 15. This can blow away the dust on the surface of the guide arc groove 806 and the clamping ring block 810, so that when the piston ring needs to be polished, the dust can be easily cleaned, reducing the impact of dust on the piston ring polishing.

[0033] Reference Figure 3 and Figure 5 A pad 20 and a rubber layer 21 are movably bonded to one side of the clamping ring block 810. The top of the pad 20 is fixedly connected to the bottom of the rubber layer 21. The pad 20 can elevate the piston ring to a certain extent, so that it can be stably clamped on one side of the clamping ring block 810, while the rubber layer 21 can reduce the wear caused by the clamping ring block 810 on the outside of the piston ring.

[0034] Working Principle: When using this device, the operator can prepare the same number of piston rings as the number of grinding rods 7. Then, the second servo motor 801 is started. The operation of the second servo motor 801 drives the drive gear 802 to rotate. When the drive gear 802 rotates, it meshes with the driven gear 804, driving the driven gear 804, rotating rod 803, and rotating ring disk 805 to rotate together. When the rotating ring disk 805 rotates, it pushes the sliding rod 809 through the guide arc groove 806 on its top. Because the surface of the sliding rod 809 slides within the cavity of the limiting hollow block 808, the sliding rod 809 will slide smoothly inside the limiting hollow block 808 when pushed, moving closer to the center point of the rotating rod 803. While moving, 809 will also move the clamping ring block 810. Once the clamping ring block 810 has moved to the appropriate position, the operator can stop its operation and start the air pump 13. The air pump 13 will clean the dust from the surface of the clamping ring block 810 and the rotating ring disk 805. After that, the piston to be polished can be placed on one side of the clamping ring block 810 and on top of the pad 20. Then, the second servo motor 801 will be started again. The operation of the second servo motor 801 will drive the clamping ring block 810 to continue moving, thus achieving the polishing of multiple piston rings at once. Subsequently, the operation of the cylinder 4 will drive the first servo motor 6 and the polishing rod 7 to move downwards, and the operation of the first servo motor 6 will drive the polishing rod 7 to rotate, thus achieving the polishing of the inner side of the piston ring.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A piston ring holder for piston ring processing, characterized in that: Includes a base (1), a connecting rod (2) is fixedly connected to the top of the base (1), a top plate (3) is fixedly connected to one end of the connecting rod (2), a cylinder (4) is fixedly connected to the top of the top plate (3), the output end of the cylinder (4) passes through the top plate (3) and is fixedly connected to a connecting plate (5), a first servo motor (6) is fixedly connected to the bottom of the connecting plate (5), a grinding rod (7) is fixedly connected to the output end of the first servo motor (6), and a synchronous clamping mechanism (8) is provided on the top of the base (1); The synchronous clamping mechanism (8) includes a second servo motor (801), the bottom of which is fixedly connected to the top of the base (1). A drive gear (802) is fixedly connected to the output end of the second servo motor (801). A rotating rod (803) is rotatably connected to the top of the base (1). A driven gear (804) is fixedly connected to the surface of the rotating rod (803). The teeth of the drive gear (802) mesh with the teeth of the driven gear (804). One side of the rotating rod (803)... A rotating ring disk (805) is fixedly connected to the end of the base (1). A guide arc groove (806) is provided on the top of the rotating ring disk (805). A fixing rod (807) is fixedly connected to the top of the base (1). A limiting hollow block (808) is fixedly connected to one end of the fixing rod (807). A sliding rod (809) is slidably connected to the inner cavity of the limiting hollow block (808). The surface of the sliding rod (809) is slidably connected to the inner cavity of the guide arc groove (806). A clamping ring block (810) is fixedly connected to one end of the sliding rod (809).

2. The piston ring fixing bracket for piston ring processing according to claim 1, characterized in that: A fixing plate (16) is fixedly connected to the surface of the base (1). A limiting groove (18) is opened on the surface of the driven gear (804). A limiting block (17) is fixedly connected to one side of the fixing plate (16). The surface of the limiting block (17) is slidably connected to the inner cavity of the limiting groove (18). The top of the fixing plate (16) is fixedly connected to the bottom of the limiting hollow block (808).

3. A piston ring fixing bracket for piston ring processing according to claim 2, characterized in that: The top of the base (1) is fixedly connected to a limiting hollow ring block (9), and the bottom of the drive gear (802) is fixedly connected to a slider (10). The surface of the slider (10) is slidably connected to the inner cavity of the limiting hollow ring block (9).

4. A piston ring fixing bracket for piston ring processing according to claim 3, characterized in that: The inner cavity of the limiting hollow block (808) is fixedly connected to the limiting rod (11), and the inner cavity of the slide rod (809) is slidably connected to the surface of the limiting rod (11).

5. A piston ring fixing bracket for piston ring processing according to claim 4, characterized in that: A reinforcing ring block (19) is fixedly connected to the top of the base (1), and the inner cavity of the reinforcing ring block (19) is rotatably connected to the surface of the rotating rod (803).

6. A piston ring fixing bracket for piston ring processing according to claim 3, characterized in that: An air inlet pipe (12) is fixedly connected to the inner cavity of the top plate (3). An air pump (13) and a connecting block (14) are fixedly connected to the surface of the air inlet pipe (12). The bottom of the air pump (13) is fixedly connected to the top of the top plate (3). An air jet pipe (15) is fixedly connected to the inner cavity of the connecting block (14). Several air jet pipes (15) are provided.

7. A piston ring fixing bracket for piston ring processing according to claim 4, characterized in that: A pad (20) and a rubber layer (21) are movably bonded to one side of the clamping ring block (810), and the top of the pad (20) is fixedly connected to the bottom of the rubber layer (21).