A device for arranging and clamping piston rings

Abstract

This invention relates to a finishing fixture for piston ring clamping, comprising an assembly frame with a first and a second piston ring post for rotatable assembly. The first and second piston ring posts are arranged parallel to each other and spaced apart. Between the first and second piston ring posts is a finishing area for assembling piston ring posts to be finished. The piston ring posts are obtained by clamping stacked piston rings on a fixture. The outer circumferential surface of each piston ring on the piston ring post is in contact with the first and / or second piston ring posts. The above-mentioned solution provided by this invention can effectively finish multiple piston rings, and compared with traditional methods, it has the advantages of being fast, effective, simple, easy to operate, and less likely to damage the piston rings, effectively improving the efficiency and quality of piston ring surface coating clamping operations.

Description

Technical Field

[0001] This invention relates to the field of piston ring manufacturing, and more specifically to a finishing tool for clamping piston rings. Background Technology

[0002] Piston rings are metal rings used to fit into the grooves of pistons and are widely used in various power machinery. As a core component inside a fuel engine, they work together with the cylinder, piston, and cylinder walls to seal the fuel-gas mixture. With increasingly stringent requirements for engine performance and environmental conditions, the performance requirements for piston rings are becoming more stringent.

[0003] Piston ring surface treatment technologies can significantly improve their performance, such as thermal spraying, electroplating, chrome plating, gas nitriding, vacuum coating, surface coating, and zinc-manganese phosphating. Among these, vacuum coating is currently the most advanced and sophisticated method, significantly improving the wear resistance, corrosion resistance, and thermal stability of piston rings, thus greatly enhancing their functionality. Therefore, there is a great demand for surface coating treatments on piston rings. Due to the notched shape and varying sizes of piston rings, the efficiency and quality of the coating process are affected if suitable clamps are not used for proper mounting.

[0004] If piston rings are not arranged neatly during clamping, it will cause side plating overflow. Over-plating will cause the gap to exceed the tolerance during assembly, which does not meet the requirements of coating preparation. In this case, the existing technology generally uses the method of tapping with a tool to arrange the piston rings. However, this method has the disadvantages of low efficiency, easy to damage the piston rings, and a large degree of dependence on the experience and skills of the operator. Summary of the Invention

[0005] The purpose of this invention is to provide a finishing tool for piston ring clamping, which can improve the efficiency of piston ring assembly and prevent damage to piston rings during the assembly process.

[0006] The specific technical solution adopted in this invention is as follows.

[0007] A finishing fixture for piston ring clamping is characterized by comprising an assembly frame having a first and a second piston ring post for rotatable assembly, the first and second piston ring posts being arranged parallel to each other at intervals, and a finishing ring area for assembling piston ring posts to be finished between the first and second piston ring posts. The piston ring posts are obtained by clamping stacked piston rings on a fixture, and the outer circumferential surfaces of each piston ring on the piston ring post are in contact with the first and / or second piston ring posts.

[0008] The specific solution is as follows: the assembly frame has a pushing part, which is used to push the assembly frame to move so that the first ring post and / or the second ring post rolls into contact with the outer circumferential surface of the piston ring.

[0009] The assembly frame has a first assembly plate and a second assembly plate, which are arranged at an angle. A first ring column and a second ring column are respectively assembled on the first assembly plate and the second assembly plate.

[0010] The included angle between the first assembly plate and the second assembly plate is 90°.

[0011] The first assembly plate has a long, narrow first gap on the side away from the second assembly plate. The working section of the first ring column is located at the first gap. Part of the column body of the working section of the first ring column protrudes from the inner surface of the first assembly plate. The second assembly plate has a long, narrow second gap on the side away from the first assembly plate. The working section of the second ring column is located at the second gap. Part of the column body of the working section of the second ring column protrudes from the inner surface of the second assembly plate. The ring area is located inside the first and second assembly plates.

[0012] Both the first and second ring columns are composed of ring columns. The ring column includes a middle section and assembly sections set at both ends of the middle section. The outer diameter of the middle section is larger than the outer diameter of the assembly section. The middle section constitutes the working section. The assembly section is rotatably and fixedly assembled on the peripheral plate of the first / second empty part through bearings and bearing seats.

[0013] The entire ring is a solid cylinder made of 304 stainless steel, and the outer surface of the middle section is polished.

[0014] The first assembly plate and the second assembly plate are each composed of two plates of L-shaped or V-shaped plates, and the pushing part is located at the junction of the first assembly plate and the second assembly plate.

[0015] The push part consists of an operating handle in the shape of "[".

[0016] The sheet metal is made of 304 stainless steel with a thickness of 1 to 3 mm.

[0017] The above-mentioned solution provided by the present invention can effectively process multiple piston rings. Compared with traditional methods, it has the advantages of being fast, effective, simple and easy to operate, and less likely to damage the piston rings, thus effectively improving the efficiency and quality of piston ring surface coating clamping operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a structural schematic diagram of the assembly rack.

[0020] Figure 3 This is a schematic diagram of the structure of the first complete ring column.

[0021] Figure 4 This is a structural diagram of the present invention in use.

[0022] The correspondence between the reference numerals and components in the attached drawings is as follows: 10-assembly frame, 11-first ring column, 12-second ring column, 13-first assembly plate, 14-second assembly plate, 15-operating handle, 20-clamp, 21-piston ring. Detailed Implementation

[0023] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0024] like Figure 1 , 2 As shown, a finishing fixture for piston ring clamping is characterized by: including an assembly frame 10, on which there are first ring-aligning posts 11 and second ring-aligning posts 12 for rotatable assembly, the first ring-aligning posts 11 and the second ring-aligning posts 12 are arranged parallel to each other at intervals, and there is a ring-aligning area between the first ring-aligning posts 11 and the second ring-aligning posts 12 for assembling piston ring 21 posts to be finished, the piston ring 21 posts are obtained by clamping the piston rings 21 in a stacked manner on a fixture 20, and the outer peripheral surface of each piston ring 21 on the piston ring 21 post is in a state of abutting contact with the first ring-aligning post 11 and / or the second ring-aligning post 12.

[0025] The specific design is as follows: The assembly frame 10 has a pushing part, which is used to move the assembly frame 10 so that the first ring post 11 and / or the second ring post 12 roll into contact with the outer circumferential surface of the piston ring 21. The assembly frame 10 has a first assembly plate 13 and a second assembly plate 14, which are arranged at an angle. The first ring post 11 and the second ring post 12 are respectively mounted on the first assembly plate 13 and the second assembly plate 14. The angle between the first assembly plate 13 and the second assembly plate 14 is 90°. The first assembly plate 13 has a long, narrow first gap on its side away from the second assembly plate 14. The working section of the first ring column 11 is located at the first gap, and a portion of the working section of the first ring column 11 protrudes from the inner surface of the first assembly plate 13. The second assembly plate 14 has a long, narrow second gap on its side away from the first assembly plate 13. The working section of the second ring column 12 is located at the second gap, and a portion of the working section of the second ring column 12 protrudes from the inner surface of the second assembly plate 14. The ring area is located inside the first assembly plate 13 and the second assembly plate 14. Both the first ring column 11 and the second ring column 12 are ring columns, each comprising a middle section and assembly sections at both ends of the middle section. The outer diameter of the middle section is larger than the outer diameter of the assembly sections. The middle section constitutes the working section. The assembly sections are rotatably and fixedly mounted on the peripheral plates of the first / second gap via bearings and bearing seats. The entire ring-shaped column is a solid cylinder made of 304 stainless steel, with the outer surface of the middle section polished. The first assembly plate 13 and the second assembly plate 14 are each composed of two L-shaped or V-shaped plates, with a pushing part located at the junction of the first assembly plate 13 and the second assembly plate 14. The pushing part is a "[" shaped operating handle 15. The plates are made of 304 stainless steel with a thickness of 1-3 mm.

[0026] The dimensions of the plate are determined according to the corresponding piston ring 21. The plate is used to fix and connect the entire clamp 20. The material thickness and overall length are configured according to the corresponding piston ring 21 and clamping fixture 20. The operating handle 15 is used for gripping when using the shaping tool. The dimensions (length, diameter) of the ring cylinder are configured according to the corresponding piston ring 21 and clamping fixture 20, with the following specific requirements: the cylinder must be a solid cylinder, hollow cylinders are not allowed, and sufficient mass is beneficial for the use of the shaping tool; the cylinder must be straight, not bent, and not arched to prevent parts of the piston ring 21 from being unable to be shaped during use; the working section must be deburred and polished to a smooth and bright finish, without scratches or pits, to prevent damage to the piston ring 21 during use. The two end assembly sections are the parts that connect with the bearings, and the dimensions are configured according to the corresponding bearings. The bearings can be standard bearings available on the market according to the required specifications. Their function is to fix the ring cylinder and ensure smooth operation of the ring cylinder during the shaping process of the piston ring 21. The bearing housing is made of stainless steel, and the dimensions are determined according to the corresponding bearings. The bearing housing is used to assemble the ring cylinder and bearing, and to integrate them with the sheet metal as a whole. The bearing housing does not directly contact the ring cylinder to avoid increasing rolling resistance; the bearing housing is securely fastened to the sheet metal with nuts to prevent wobbling.

[0027] During operation, the piston rings 21 on the assembly fixture 20 are aligned neatly by utilizing the weight of the entire ring column combined with the pushing and pressing action of the hand and the tightening pressure at both ends of the fixture 20. Compared with traditional methods, the above-mentioned shaping tool has the advantages of being simple to use, easy to master, and having minimal differences in operator skill; it can also be applied to the shaping of piston rings 21 of different sizes without causing damage to the surface of the piston rings 21; and its efficiency and effect are significantly better than traditional methods.

[0028] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, mechanisms, and operating methods not specifically described or explained in this invention, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A finishing fixture for clamping piston rings, characterized in that: The assembly includes an assembly frame with a first and a second ring post for rotatable assembly. The first and second ring posts are arranged parallel to each other and spaced apart. There is a ring area between the first and second ring posts for assembling piston ring posts to be assembled. The piston ring posts are obtained by clamping stacked piston rings on a fixture. The outer circumferential surface of each piston ring on the piston ring post is in contact with the first and / or second ring posts.

2. The finishing fixture for piston ring clamping according to claim 1, characterized in that: The assembly frame has a pushing part for moving the assembly frame so that the first ring post and / or the second ring post roll into contact with the outer circumferential surface of the piston ring.

3. The finishing fixture for piston ring clamping according to claim 1 or 2, characterized in that: The assembly frame has a first assembly plate and a second assembly plate, which are arranged at an angle. A first ring column and a second ring column are respectively assembled on the first assembly plate and the second assembly plate.

4. The finishing fixture for piston ring clamping according to claim 3, characterized in that: The included angle between the first assembly plate and the second assembly plate is 90°.

5. The finishing fixture for piston ring clamping according to claim 3, characterized in that: The first assembly plate has a long, narrow first gap on the side away from the second assembly plate. The working section of the first ring column is located at the first gap. Part of the column body of the working section of the first ring column protrudes from the inner surface of the first assembly plate. The second assembly plate has a long, narrow second gap on the side away from the first assembly plate. The working section of the second ring column is located at the second gap. Part of the column body of the working section of the second ring column protrudes from the inner surface of the second assembly plate. The ring area is located inside the first and second assembly plates.

6. The finishing fixture for piston ring clamping according to claim 5, characterized in that: Both the first and second ring columns are composed of ring columns. The ring column includes a middle section and assembly sections set at both ends of the middle section. The outer diameter of the middle section is larger than the outer diameter of the assembly section. The middle section constitutes the working section. The assembly section is rotatably and fixedly assembled on the peripheral plate of the first / second empty part through bearings and bearing seats.

7. The finishing fixture for piston ring clamping according to claim 5, characterized in that: The entire ring is a solid cylinder made of 304 stainless steel, and the outer surface of the middle section is polished.

8. The finishing fixture for piston ring clamping according to claim 3, characterized in that: The first assembly plate and the second assembly plate are each composed of two plates of L-shaped or V-shaped plates, and the pushing part is located at the junction of the first assembly plate and the second assembly plate.

9. The finishing fixture for piston ring clamping according to claim 8, characterized in that: The push part consists of an operating handle in the shape of "[".

10. The finishing fixture for piston ring clamping according to claim 8, characterized in that: The sheet metal is made of 304 stainless steel with a thickness of 1 to 3 mm.

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