Auxiliary device for assembling engine piston

Abstract

The utility model provides an engine piston assembly auxiliary device, which relates to the technical field of engine piston assembly, and comprises an assembly cavity, a positioning mechanism is arranged at the lower part in the assembly cavity, a material pushing mechanism is arranged at the upper part in the assembly cavity, a movable cavity is fixedly arranged on the outer side wall of a thread bushing, and the movable cavity is provided with a material pushing mechanism. One end of the movable cavity extends into the assembling cavity, and a positioning plate is mounted at one end of the movable cavity; a positioning mechanism is arranged on the inner side of an assembly cavity, two positioning plates can be driven to move through mutual cooperation of positioning plates, a mounting cavity, a first servo motor, a threaded rod, a threaded sleeve, a movable cavity, a limiting groove and a limiting block of the positioning mechanism, and the two positioning plates are used for positioning a piston; and the piston is more stable during assembly and is more convenient and faster during positioning, so that the practicability of the device during use is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engine piston assembly technical field especially relates to a kind of engine piston assembly auxiliary device. BACKGROUND

[0002] Piston is the machine part that reciprocating motion in the cylinder block of automobile engine. The basic structure of piston can be divided into top, head and skirt. Piston top is the main part of combustion chamber, its shape is related to the selected combustion chamber form. Gasoline engine adopts flat top piston, its advantage is small heat absorption area;

[0003] Engine piston needs to use auxiliary device when assembling, then the existing engine piston is positioned when installing, usually worker uses a piece of iron skin to limit piston, then uses rubber hammer to hammer piston, to install, it is more cumbersome when positioning piston, not enough convenient, and not enough stable, to reduce the practicability of the device when using, therefore, the utility model provides a kind of engine piston assembly auxiliary device to solve the above problems. SUMMARY

[0004] In view of the above problems, the utility model provides a kind of engine piston assembly auxiliary device, has solved the practicability problem of the device when using that the positioning piston in prior art is more cumbersome, not enough convenient, and not enough stable.

[0005] To realize the purpose of the utility model, the utility model realizes by following technical scheme: a kind of engine piston assembly auxiliary device, including assembly cavity, the lower part of the inside of the assembly cavity is provided with positioning mechanism, the upper part of the inside of the assembly cavity is provided with push material mechanism;

[0006] The positioning mechanism includes positioning plate, installation cavity, first servo motor, threaded rod, threaded sleeve, movable cavity and limiting structure, the installation cavity is installed in both sides of assembly cavity, one end of the installation cavity is installed with first servo motor, the inside of the installation cavity is installed with threaded rod, the output end of the first servo motor is connected with one end of threaded rod, the outer side wall of the threaded rod is provided with threaded sleeve, the outer side wall of the threaded sleeve is fixedly installed with movable cavity, one end of the movable cavity extends to the inside of assembly cavity, one end of the movable cavity is installed with positioning plate.

[0007] Further improvement lies in that: the positioning plate is provided with two in the inside of assembly cavity, two the positioning plate is arc design, two the positioning plate mutually adapts.

[0008] Further improvement lies in that: the limiting structure includes limiting groove and limiting block, the limiting groove is opened in both sides of the inside of installation cavity, the inside of the limiting groove is provided with limiting block, one end of the limiting block is connected with the outside of movable cavity.

[0009] Further improvement lies in that the cross section of the limiting groove is larger than that of the limiting block, and a sliding structure is formed between the limiting groove and the limiting block.

[0010] Further improvement lies in that the pushing mechanism comprises a fixed cavity, a second servo motor, a driving gear, a driven gear ring, a threaded sleeve, a screw rod, a push plate, a limiting rail, a movable block and a guide structure, the fixed cavity is installed at the top end of the assembly cavity, the top end of the fixed cavity is provided with the second servo motor, one side of the inside of the fixed cavity is provided with the driving gear, the output end of the second servo motor is connected with one end of the driving gear, one side of the driving gear is engaged with the driven gear ring, the inside of the driven gear ring is fixedly provided with the threaded sleeve, the inside of the threaded sleeve is provided with the screw rod, the bottom end of the screw rod extends to the inside of the assembly cavity, the bottom end of the screw rod is provided with the push plate, the bottom end of the inside of the fixed cavity is provided with the limiting rail, the inside of the limiting rail is provided with the movable block, and one end of the movable block is connected with the outer wall of the threaded sleeve.

[0011] Further improvement lies in that the guide structure comprises a guide hole and a guide rod, the guide hole is provided through the top of the assembly cavity, and the guide hole is provided with the guide rod through.

[0012] The utility model discloses beneficial effects that: through being provided with the positioning mechanism in the inside of assembly cavity, utilizing the mutual cooperation between the positioning plate, installation cavity, first servo motor, threaded rod, threaded bush, movable cavity, limiting groove and limiting block of positioning mechanism, can drive two positioning plates to move, utilizes two positioning plates to position the piston and handles, makes the piston more stable when assembling, also makes the piston more convenient and fast when positioning, thereby greatly improves the practicality of the device when using, through being provided with pushing mechanism in the top of assembly cavity, utilizing the mutual cooperation between the fixed cavity, second servo motor, driving gear, driven gear ring, threaded sleeve, screw rod, push plate, limiting rail, movable block, guide hole and guide rod of pushing mechanism, can drive push plate to move, utilizes push plate to push the piston and handles, makes the piston more convenient and fast when assembling, thereby greatly improves the convenience of the device when using. ACCURATE DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model;

[0014] Figure 2 It is the sectional structure schematic diagram of the utility model;

[0015] Figure 3 It is the positioning mechanism whole structure schematic diagram of the utility model;

[0016] Figure 4 The whole structure schematic view of the pushing mechanism of the utility model.

[0017] Among them: 1, assembly cavity; 2, positioning plate; 3, installation cavity; 4, first servo motor; 5, threaded rod; 6, threaded sleeve; 7, movable cavity; 8, limit groove; 9, limit block; 10, fixed cavity; 11, second servo motor; 12, driving gear; 13, driven gear ring; 14, threaded rotating sleeve; 15, screw; 16, push plate; 17, limit rail; 18, movable block; 19, guide hole; 20, guide rod. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with examples, and the present embodiment is only used to explain the utility model and does not constitute the limitation of the protection scope of the utility model.

[0019] According to Figure 1 , 2 , 3, 4, the present embodiment proposes an engine piston assembly auxiliary device, which comprises an assembly cavity 1, the lower part of the inside of the assembly cavity 1 is provided with a positioning mechanism, and the upper part of the inside of the assembly cavity 1 is provided with a pushing mechanism.

[0020] The positioning mechanism comprises a positioning plate 2, an installation cavity 3, a first servo motor 4, a threaded rod 5, a threaded sleeve 6, a movable cavity 7 and a limiting structure, the installation cavity 3 is installed on both sides of the assembly cavity 1, one end of the installation cavity 3 is provided with the first servo motor 4, the inside of the installation cavity 3 is provided with the threaded rod 5, the output end of the first servo motor 4 is connected with one end of the threaded rod 5, the outer side wall of the threaded rod 5 is provided with the threaded sleeve 6, the outer side wall of the threaded sleeve 6 is fixedly provided with the movable cavity 7, one end of the movable cavity 7 extends to the inside of the assembly cavity 1, one end of the movable cavity 7 is provided with the positioning plate 2, the positioning plate 2 is provided with two in the inside of the assembly cavity 1, the two positioning plates 2 are designed in an arc shape, and the two positioning plates 2 are adapted to each other, when in use, the first servo motor 4 drives the threaded rod 5 to rotate, so as to drive the threaded sleeve 6 to move, and then under the limiting of the limit groove 8 and the limit block 9, the movable cavity 7 is driven to move by the threaded sleeve 6, and then the positioning plate 2 is driven to move, the two positioning plates 2 are moved to the outside of the piston, the piston is positioned, the piston is more stable during assembly, and the piston is more convenient and fast during positioning, so that the practicability of the device during use is greatly improved.

[0021] The limiting structure comprises a limiting groove 8 and a limiting block 9, the limiting groove 8 is opened on both sides inside the mounting cavity 3, the inside of the limiting groove 8 is provided with the limiting block 9, one end of the limiting block 9 is connected with the outside of the movable cavity 7, the cross section of the limiting groove 8 is larger than that of the limiting block 9, and the sliding structure is formed between the limiting groove 8 and the limiting block 9.

[0022] The pushing mechanism comprises a fixed cavity 10, a second servo motor 11, a driving gear 12, a driven gear ring 13, a threaded rotating sleeve 14, a screw rod 15, a push plate 16, a limiting rail 17, a movable block 18 and a guide structure, the fixed cavity 10 is installed at the top end of the assembly cavity 1, the second servo motor 11 is installed at the top end of the fixed cavity 10, the driving gear 12 is installed on one side inside the fixed cavity 10, the output end of the second servo motor 11 is connected with one end of the driving gear 12, the driving gear 12 is meshed with the driven gear ring 13 on one side, the threaded rotating sleeve 14 is fixedly installed inside the driven gear ring 13, the screw rod 15 is penetratingly arranged inside the threaded rotating sleeve 14, the bottom end of the screw rod 15 extends to the inside of the assembly cavity 1, the push plate 16 is installed at the bottom end of the screw rod 15, the limiting rail 17 is installed at the bottom end inside the fixed cavity 10, the movable block 18 is arranged inside the limiting rail 17, one end of the movable block 18 is connected with the outer wall of the threaded rotating sleeve 14, in use, the second servo motor 11 drives the driving gear 12 to rotate, under the limiting of the limiting rail 17 and the movable block 18, the driven gear ring 13 drives the threaded rotating sleeve 14 to rotate, so that the screw rod 15 moves, and under the guidance of the guide hole 19 and the guide rod 20, the push plate 16 moves downwardly driven by the screw rod 15, the push plate 16 pushes the piston to move, the piston is assembled, the staff only needs to fix the position of the assembly cavity 1, the bottom end of the push plate 16 is provided with a plastic soft pad, the piston is protected, the push plate 16 is driven to move, the piston is assembled by the push plate 16, so that the piston is more convenient and fast during assembly, thereby greatly improving the convenience of the device in use.

[0023] The guide structure comprises a guide hole 19 and a guide rod 20, the guide hole 19 is penetratingly opened at the top of the assembly cavity 1, the guide rod 20 is penetratingly arranged inside the guide hole 19, and the bottom end of the guide rod 20 is connected with the top end of the push plate 16, in use, the guide hole 19 and the guide rod 20 are matched with each other, so that the push plate 16 is guided to move, and the push plate 16 is more stable during movement.

[0024] Working principle: the staff first puts the piston into the engine piston slot inside, puts the assembly cavity 1 at the outside of the piston, at this moment, starts the first servo motor 4 and drives the threaded rod 5 to rotate, so drives the threaded sleeve 6 to move, and then under the limiting of the limiting groove 8 and the limiting block 9, drives the movable cavity 7 to move by the threaded sleeve 6, and then drives the positioning plate 2 to move, moves two positioning plates 2 to the outside of the piston, positions the piston, then starts the second servo motor 11 and drives the driving gear 12 to rotate, since the driving gear 12 and the driven gear ring 13 are mutually engaged, under the limiting of the limiting rail 17 and the movable block 18, drives the threaded rotating sleeve 14 to rotate by the driven gear ring 13, so drives the screw rod 15 to move, and then under the guidance of the guide hole 19 and the guide rod 20, drives the push plate 16 to move downwards by the screw rod 15, pushes the piston to move by the push plate 16, assembles the piston, the staff only needs to fix the position of the assembly cavity 1, the bottom end of the push plate 16 is provided with a plastic soft pad, can protect the piston.

[0025] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and description in the specification are only to illustrate the principle of the utility model, and the utility model will have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An engine piston assembly aid comprising an assembly chamber (1), characterised in that: The lower part of the interior of the assembly cavity (1) is provided with a positioning mechanism, and the upper part of the interior of the assembly cavity (1) is provided with a pushing mechanism; The positioning mechanism comprises a positioning plate (2), a mounting cavity (3), a first servo motor (4), a threaded rod (5), a threaded sleeve (6), a movable cavity (7) and a limiting structure, the mounting cavity (3) is mounted on the two sides of the assembly cavity (1), one end of the mounting cavity (3) is provided with the first servo motor (4), the inside of the mounting cavity (3) is provided with the threaded rod (5), the output end of the first servo motor (4) is connected with one end of the threaded rod (5), the outer side wall of the threaded rod (5) is provided with the threaded sleeve (6), the outer side wall of the threaded sleeve (6) is fixedly provided with the movable cavity (7), one end of the movable cavity (7) extends into the interior of the assembly cavity (1), and one end of the movable cavity (7) is provided with the positioning plate (2).

2. An engine piston assembly aid as claimed in claim 1, wherein: The positioning plate (2) is provided with two in the interior of the assembly cavity (1), the two positioning plates (2) are designed in an arc shape, and the two positioning plates (2) are matched with each other.

3. An engine piston assembly aid according to claim 2, wherein: The limiting structure comprises a limiting groove (8) and a limiting block (9), the limiting groove (8) is formed in the two sides of the interior of the mounting cavity (3), and the limiting block (9) is arranged in the interior of the limiting groove (8).

4. An engine piston assembly aid according to claim 3, wherein: The cross section of the limiting groove (8) is larger than that of the limiting block (9), and a sliding structure is formed between the limiting groove (8) and the limiting block (9).

5. An engine piston assembly aid as claimed in claim 1, wherein: The pushing mechanism comprises a fixed cavity (10), a second servo motor (11), a driving gear (12), a driven gear ring (13), a threaded rotating sleeve (14), a screw rod (15), a push plate (16), a limiting rail (17), a movable block (18) and a guide structure, the fixed cavity (10) is mounted at the top end of the assembly cavity (1), the top end of the fixed cavity (10) is provided with the second servo motor (11), one side of the interior of the fixed cavity (10) is provided with the driving gear (12), the output end of the second servo motor (11) is connected with one end of the driving gear (12), one side of the driving gear (12) is engaged with the driven gear ring (13), the driven gear ring (13) is fixedly arranged in the interior of the threaded rotating sleeve (14), the threaded rotating sleeve (14) is provided with the screw rod (15) penetrating through the interior thereof, the bottom end of the screw rod (15) extends into the interior of the assembly cavity (1), the bottom end of the screw rod (15) is provided with the push plate (16), the bottom end of the interior of the fixed cavity (10) is provided with the limiting rail (17), the interior of the limiting rail (17) is provided with the movable block (18), and one end of the movable block (18) is connected with the outer wall of the threaded rotating sleeve (14).

6. An engine piston assembly aid as claimed in claim 5, wherein: The guide structure comprises a guide hole (19) and a guide rod (20), the guide hole (19) penetrates through the top of the assembly cavity (1), the guide rod (20) penetrates through the interior of the guide hole (19), and the bottom end of the guide rod (20) is connected with the top end of the push plate (16).

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