Piston ring assembling equipment for gasoline saw engine piston

Abstract

The utility model discloses a gasoline saw engine piston ring assembling device which comprises a working table, a concentric-square-shaped frame is fixedly installed on the left side of the upper end of the working table, an air cylinder is fixedly installed at the upper end of the concentric-square-shaped frame, an adjusting plate is fixedly installed at the output end of the air cylinder, and a positioning pressing ring is fixedly installed at the right end of the adjusting plate. Two fixing columns are fixedly installed at the upper end of the workbench, a fixing disc is jointly and fixedly installed at the upper ends of the two fixing columns, and a sliding groove is formed in the upper end of the fixing disc. Compared with the prior art, the piston ring positioning device has the advantages that due to the fact that the arc-shaped positioning block is tightly attached to the piston ring and the piston is sleeved synchronously, gaps and errors in the assembling process are reduced through the tight attachment, stable supporting force is provided, the piston ring is prevented from shaking or shifting in the assembling process, and the assembling quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of piston ring assembly, in particular to a piston ring assembly device for a gasoline saw engine piston. Background Art

[0002] The piston of a gasoline saw engine is a part that is installed in the cylinder of a gasoline saw engine, connected to the crankshaft, and compresses the mixture in the cylinder through up and down reciprocating motion, thereby generating energy to drive the engine to work. The piston is usually made of high-strength aluminum alloy material, and the surface is treated with special coating or spraying technology to improve its wear resistance and corrosion resistance. The piston is one of the core components of a gasoline saw engine, and its quality directly affects the performance and life of the engine. The piston ring of a gasoline saw engine is composed of two rings, one is the top ring and the other is the second ring. The main function of the top ring is to seal the gap between the piston and the cylinder to prevent gas leakage; the main function of the second ring is to scrape oil, scrape off the oil film on the surface of the piston, and prevent oil stains from penetrating into the combustion chamber.

[0003] When assembling the piston ring of a gasoline saw engine piston, place the piston on the assembly equipment placement table, align the upper edge of the piston ring with the lower edge of the piston groove, and push the bottom of the piston ring so that the piston ring slides upward in a short stroke and slides into the piston groove, completing the piston ring assembly of the piston.

[0004] The existing problem is that when the piston ring is pushed to slide upward, there is friction between the piston ring and the piston surface. When the piston ring slides upward for a certain distance, the piston is displaced synchronously by the force, causing the piston to leave the placement table and the piston ring cannot be assembled, affecting the piston ring assembly work. Utility Model Content

[0005] The utility model aims at the problem that the piston is easily displaced and affects the assembly of the piston ring. The technical problem to be solved by the utility model is to provide a piston ring assembly device for the piston of a gasoline saw engine.

[0006] The technical solution adopted by the present utility model to solve the above technical problems is as follows: A piston ring assembly device for a gasoline saw engine piston, including a workbench. On the upper left side of the workbench, a U-shaped frame is fixedly installed. On the upper end of the U-shaped frame, a cylinder is fixedly installed. The output end of the cylinder is fixedly installed with an adjusting plate. On the right end of the adjusting plate, a positioning pressing ring is fixedly installed. On the upper end of the workbench, two fixed columns are fixedly installed. On the upper ends of the two fixed columns, a fixed disk is jointly fixedly installed. On the upper end of the fixed disk, a chute is provided. A driving mechanism is arranged in the chute. On the left and right sides of the outer surface of the driving mechanism, an adjusting block is threadedly connected respectively. On the upper ends of the two adjusting blocks, an arc-shaped positioning block is fixedly installed respectively. On the upper end of the fixed disk, a piston ring is placed. Above the piston ring, a piston is provided. The arc-shaped positioning block is movably inserted into the piston ring.

[0007] A further preferred solution of the present utility model is: The driving mechanism includes a servo motor. The output end of the servo motor is fixedly installed with a forward and reverse threaded rod. The forward and reverse threaded rod is movably connected in the chute. The servo motor is fixedly connected to the outer surface of the fixed disk. The adjusting block is threadedly connected to the forward and reverse threaded rod.

[0008] A further preferred solution of the present utility model is: Four support legs are fixedly installed at the lower end of the workbench. A stabilizing plate is jointly fixedly installed on the opposite surfaces of the support legs.

[0009] A further preferred solution of the present utility model is: The axis lines of the positioning pressing ring and the piston coincide.

[0010] A further preferred solution of the present utility model is: The fixed disk is circularly arranged.

[0011] A further preferred solution of the present utility model is: The adjusting plate and the workbench maintain a parallel positional relationship.

[0012] Compared with the prior art, the present utility model has the following advantages. The piston ring is sleeved on the two arc-shaped positioning blocks. The arc-shaped positioning blocks are semi-circular. The two arc-shaped positioning blocks can be finely adjusted according to the actual inner diameter size of the piston ring to ensure that they always maintain close and uniform contact with the piston ring. The arc-shaped positioning blocks can dynamically adjust their positions to adapt to piston rings with different inner diameters and keep the piston ring stable during the assembly process. Due to the close fit between the arc-shaped positioning blocks and the piston ring and the synchronous sleeving of the piston, this close fit not only reduces the gaps and errors during the assembly process but also provides a stable supporting force to prevent the piston ring from shaking or shifting during the assembly process and ensure the assembly quality. Description of the Drawings

[0013] The present utility model will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present utility model. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0014] Figure 1 Schematic diagram of the overall three-dimensional structure of the present utility model;

[0015] Figure 2 Schematic diagram of the top three-dimensional structure of the present utility model;

[0016] Figure 3 Schematic diagram of the structure of the positioning press ring of the present utility model;

[0017] Figure 4 Schematic diagram of the structure of the driving mechanism of the present utility model.

[0018] In the figure: 1, workbench; 2, loop-shaped frame; 3, air cylinder; 4, adjusting plate; 5, positioning press ring; 6, fixing column; 7, fixing disk; 8, sliding groove; 9, driving mechanism; 10, adjusting block; 11, arc-shaped positioning block; 12, piston ring; 13, piston; 91, servo motor; 92, positive and negative threaded rod; 14, support leg; 15, stabilizing plate. Specific embodiments

[0019] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary and should not be construed as limiting the protection scope of the present utility model.

[0020] It should be noted that: similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

[0021] This embodiment mainly elaborates on a piston ring assembly device for a gasoline saw engine piston, specifically as follows:

[0022] As Figures 1-4As shown in the figure, a piston ring assembly device for a gasoline saw engine piston includes a workbench 1. On the upper left side of the workbench 1, a rectangular frame 2 is fixedly installed. On the upper end of the rectangular frame 2, a cylinder 3 is fixedly installed. The output end of the cylinder 3 is fixedly installed with an adjustment plate 4. The adjustment plate 4 and the workbench 1 maintain a parallel positional relationship. On the right end of the adjustment plate 4, a positioning press ring 5 is fixedly installed. On the upper end of the workbench 1, two fixed columns 6 are fixedly installed. On the upper ends of the two fixed columns 6, a fixed disk 7 is fixedly installed together. The fixed disk 7 is circularly arranged. On the upper end of the fixed disk 7, a chute 8 is opened. Inside the chute 8, a driving mechanism 9 is arranged. On the left and right sides of the outer surface of the driving mechanism 9, an adjustment block 10 is threadedly connected respectively. On the upper ends of the two adjustment blocks 10, an arc-shaped positioning block 11 is fixedly installed respectively. On the upper end of the fixed disk 7, a piston ring 12 is placed. Above the piston ring 12, a piston 13 is arranged. The axis lines of the positioning press ring 5 and the piston 13 coincide. The arc-shaped positioning block 11 is movably inserted into the piston ring 12. Due to the close fit between the arc-shaped positioning block 11 and the piston ring 12 and the synchronous sleeving of the piston 13, this close fit not only reduces the gaps and errors during the assembly process, but also provides a stable supporting force, preventing the piston ring 12 from shaking or shifting during the assembly process and ensuring the assembly quality. By starting the cylinder 3 to push the adjustment plate 4 downward, when the positioning press ring 5 is pushed downward to exert pressure on the piston 13, the piston 13 moves downward. At this time, the piston ring 12 enters the piston groove at the bottom of the piston 13. At this time, the bottom of the piston 13 and the bottom of the piston ring 12 are flush, thus completing the assembly work of the piston ring 12 of the engine piston 13.

[0023] On the lower end of the workbench 1, four support legs 14 are fixedly installed. On the opposite surfaces of the support legs 14, a stabilizing plate 15 is fixedly installed together. By providing the support legs 14, they play a role in supporting and stabilizing the workbench 1. By providing the stabilizing plate 15, the stabilizing plate 15 can disperse the pressure borne by the support legs 14, making the whole structure more stable. When subjected to external forces, the stabilizing plate 15 can effectively reduce the bending and deformation of the support legs 14, thereby improving the load-bearing capacity and stability of the whole structure.

[0024] As Figure 4As shown, the driving mechanism 9 includes a servo motor 91. A left - right threaded rod 92 is fixedly installed at the output end of the servo motor 91. The left - right threaded rod 92 is movably connected in the chute 8. The servo motor 91 is fixedly connected to the outer surface of the fixed disk 7. The adjusting block 10 is threadedly connected to the left - right threaded rod 92. By driving the left - right threaded rod 92 to rotate with the servo motor 91, since the left and right ends of the left - right threaded rod 92 have threads with different rotation directions, the nuts or the adjusting blocks 10 with nuts provided at both ends of the left - right threaded rod 92 can move relatively. Thus, when driving the two arc - shaped positioning blocks 11 to move, they always fit with the piston ring 12 according to the inner diameter of the piston ring 12. When the servo motor 91 drives the left - right threaded rod 92 to rotate, the two arc - shaped positioning blocks 11 can be finely adjusted according to the actual inner diameter of the piston ring 12 to ensure that they always maintain a tight and uniform contact with the piston ring 12. The arc - shaped positioning blocks 11 can dynamically adjust their positions to adapt to piston rings 12 with different inner diameters and keep the piston ring 12 stable during the assembly process.

[0025] During use, when assembling the piston ring 12 of the gasoline saw engine piston 13, the piston ring 12 is sleeved on the two arc - shaped positioning blocks 11. The arc - shaped positioning blocks 11 are semi - circular. By driving the left - right threaded rod 92 to rotate with the servo motor 91, since the left and right ends of the left - right threaded rod 92 have threads with different rotation directions, the nuts or the adjusting blocks 10 with nuts provided at both ends of the left - right threaded rod 92 can move relatively. Thus, when driving the two arc - shaped positioning blocks 11 to move, they always fit with the piston ring 12 according to the inner diameter of the piston ring 12. And the piston 13 is also sleeved on the two arc - shaped positioning blocks 11 and is located above the piston ring 12. The arc - shaped positioning blocks 11 are designed to be semi - circular and can closely fit the inner diameter of the piston ring 12. As the servo motor 91 drives the left - right threaded rod 92 to rotate, the two arc - shaped positioning blocks 11 can be finely adjusted according to the actual inner diameter of the piston ring 12 to ensure that they always maintain a tight and uniform contact with the piston ring 12. The arc - shaped positioning blocks 11 can dynamically adjust their positions to adapt to piston rings 12 with different inner diameters and keep the piston ring 12 stable during the assembly process. Due to the tight fit between the arc - shaped positioning blocks 11 and the piston ring 12 and the synchronous sleeving of the piston 13, this tight fit not only reduces the gaps and errors during the assembly process but also provides a stable supporting force to prevent the piston ring 12 from shaking or shifting during the assembly process and ensures the assembly quality. By starting the air cylinder 3 to push the adjusting plate 4 downward, thus pushing the positioning press - ring 5 downward to exert pressure on the piston 13, the piston 13 moves downward. At this time, the piston ring 12 enters the piston groove at the bottom of the piston 13, and at this time, the bottom of the piston 13 and the bottom of the piston ring 12 are flush, thus completing the assembly work of the piston ring 12 of the engine piston 13.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] The above has introduced in detail a piston ring assembly device for a gasoline saw engine piston provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only for helping to understand the present utility model and its core idea. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A piston ring assembly device for a gasoline saw engine, comprising a workbench (1). A rectangular frame (2) is fixedly installed on the left side of the upper end of the workbench (1). A cylinder (3) is fixedly installed on the upper end of the rectangular frame (2). The output end of the cylinder (3) is fixedly installed with an adjusting plate (4). A positioning pressure ring (5) is fixedly installed at the right end of the adjusting plate (4). Two fixed columns (6) are fixedly installed on the upper end of the workbench (1). A fixed disk (7) is fixedly installed at the upper ends of the two fixed columns (6). A chute (8) is opened on the upper end of the fixed disk (7), and it is characterized in that, A driving mechanism (9) is arranged in the sliding groove (8). A regulating block (10) is threadedly connected to each of the left and right sides of the outer surface of the driving mechanism (9). An arc-shaped positioning block (11) is fixedly installed at the upper end of each of the two regulating blocks (10). A piston ring (12) is placed on the upper end of the fixed disk (7). A piston (13) is arranged above the piston ring (12). The arc-shaped positioning block (11) is movably inserted into the piston ring (12).

2. The piston ring assembly device for a gasoline saw engine piston according to claim 1, characterized in that, The driving mechanism (9) includes a servo motor (91). The output end of the servo motor (91) is fixedly installed with a positive and reverse threaded rod (92). The positive and reverse threaded rod (92) is movably connected in the sliding groove (8). The servo motor (91) is fixedly connected to the outer surface of the fixed disk (7). The regulating block (10) is threadedly connected to the positive and reverse threaded rod (92).

3. The piston ring assembly device for a gasoline saw engine piston according to claim 1, characterized in that, Four support legs (14) are fixedly installed at the lower end of the workbench (1). A stabilizing plate (15) is fixedly installed on the opposite surfaces of the support legs (14).

4. The piston ring assembly device for a gasoline saw engine piston according to claim 1, characterized in that, The axis lines of the positioning press ring (5) and the piston (13) coincide.

5. The piston ring assembly device for a gasoline saw engine piston according to claim 1, characterized in that, The fixed disk (7) is circularly arranged.

6. The piston ring assembly device for a gasoline saw engine piston according to claim 1, characterized in that, The regulating plate (4) and the workbench (1) maintain a parallel positional relationship.

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