Flywheel gear ring positioning tool

Abstract

The utility model discloses a flywheel gear ring positioning tool, which belongs to the technical field of press-fitting machines and comprises a machining table, and two groups of mounting grooves are symmetrically formed in the surface of the machining table. The clamping device further comprises a clamping assembly, the clamping assembly comprises two sets of symmetrically-arranged chucks, the chucks abut against the two sides of the flywheel body, the chucks are fixedly installed on one side of the installation base, and the bottom of the installation base is in sliding fit with the installation groove. The device further comprises an alignment assembly, the alignment assembly comprises an alignment plate, and the alignment plate is arranged above the machining table. The two-way lead screw and other structures are arranged to be matched with the two chucks for use, the structure is simple, convenience and practicability are achieved, a flywheel body can be clamped and positioned in the center of the top face of the machining table, the alignment plate and the press-fitting head are coaxially arranged with the center of the machining table, and an operator can align the flywheel body by placing the gear ring body into the limiting ring; the alignment difficulty is greatly reduced, and meanwhile the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of press fitting machines, in particular to a flywheel gear ring positioning tool. Background Art

[0002] The flywheel ring gear is a connecting part that transmits the starter power to the crankshaft. Its main function is to realize the power transmission between the starter and the crankshaft. The flywheel ring gear is an important component of the engine and plays a key role in the starting and power transmission of the engine. It is installed on the flange at the rear end of the engine crankshaft. There is a ring gear pressed on the outer edge of the flywheel, which can engage with the drive gear of the starter. At the same time, behind it is a mating surface of the clutch. During the engine assembly process, a press machine should be used to accurately press or assemble the flywheel ring gear to the specified position.

[0003] After searching, the prior art, Chinese Patent Publication No.: CN216990717U, discloses a flywheel ring gear press, comprising: a press table, an upper press head, and a first power device that drives the upper press head to move up and down. The press table is equipped with a centering device for positioning and clamping the flywheel. The centering device includes a second power device, a relatively arranged movable limit block, and an adjustable fixed limit block. The second power device drives the movable limit block to move closer to or away from the fixed limit block. The upper press head includes an avoidance portion and a ring gear corresponding portion. The ring gear corresponding portion is located at the bottom of the upper press head and protrudes downward. In the radial direction, the avoidance portion is located on the inner side of the ring gear corresponding portion. The flywheel ring gear press of this utility model is subjected to uniform force during press installation, thereby improving the quality and speed of press installation, improving the operator's operating environment, reducing the operator's labor intensity, and having a wide range of applications.

[0004] But the device also looks for the following defects:

[0005] The device requires the operator to manually place the freshly heated gear ring on the flywheel surface and align it with the flywheel's mounting groove. This process is somewhat difficult, requires a high level of operator proficiency, and is time-consuming, which directly affects processing efficiency. The device does not solve this problem well. Utility Model Content

[0006] The purpose of the present utility model is to provide a flywheel ring gear positioning tool, which arranges the center of the alignment plate and the processing table coaxially and places the ring gear body in the limit ring to achieve alignment with the flywheel body, thereby greatly reducing the difficulty of alignment and improving the processing efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A flywheel ring gear positioning tool comprises a processing table, wherein the processing table surface is symmetrically provided with two sets of mounting grooves;

[0009] The flywheel body is provided with a plurality of symmetrically arranged clamping heads, the clamping heads abutting against two sides of the flywheel body, the clamping heads being fixedly mounted on one side of a mounting seat, and the bottom of the mounting seat being slidably engaged with the mounting groove;

[0010] The invention also includes an alignment assembly, wherein the alignment assembly includes an alignment plate, the alignment plate is arranged above the processing table, a limit ring is fixedly installed at the center of the alignment plate, and the gear ring body is placed in the limit ring;

[0011] It also includes a press-fitting assembly, which includes a press-fitting head. The press-fitting head is arranged above the alignment plate and coaxially with the center of the alignment plate and the processing table. The top center of the press-fitting head is fixedly connected to the telescopic end of the cylinder.

[0012] Preferably, a movable seat is fixedly mounted on the bottom of the mounting seat, and two groups of movable seats are respectively mounted in two groups of thread grooves in opposite directions opened on the surface of the bidirectional screw rod.

[0013] Preferably, both ends of the bidirectional screw are rotatably mounted on the inner side of the mounting plate, the mounting plate is fixedly mounted on the bottom surface of the processing table, one end of the bidirectional screw is transmission-matched with the output end of the motor, and the motor is fixedly mounted on the outer side of the mounting plate.

[0014] Preferably, the four sides of the alignment plate are respectively slidably matched with four groups of sliding rods, the bottoms of the sliding rods are fixedly installed on the top surface of the processing table, and the tops of the sliding rods are fixedly installed with limit plates.

[0015] Preferably, a spring is slidably sleeved on the surface of the slide rod, the bottom of the spring is fixedly connected to the processing table, and the top of the spring is in contact with the bottom of the alignment plate.

[0016] Preferably, the cylinder is fixedly installed at the top center of the top plate, and the bottom of the top plate is fixedly connected to the processing table through four groups of support columns.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model is simple in structure, convenient and practical by setting a bidirectional screw rod and other structures in conjunction with two sets of chucks. The flywheel body can be clamped and positioned at the center of the top surface of the processing table, and by arranging the alignment plate and the press-fitting head coaxially with the center of the processing table, the operator can align the gear ring body with the flywheel body by placing the gear ring body into the limit ring, which greatly reduces the difficulty of alignment and improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 Schematic diagram of the alignment component structure;

[0021] Figure 3 Schematic diagram of the bottom structure of the processing table;

[0022] Figure 4 Schematic diagram of the cross-sectional structure of the alignment plate.

[0023] In the figure: 1. Processing table; 2. Mounting groove; 3. Chuck; 4. Flywheel body; 5. Mounting seat; 6. Alignment plate; 7. Limiting ring; 8. Gear ring body; 9. Press-fitting head; 10. Cylinder; 11. Moving seat; 12. Bidirectional screw; 13. Mounting plate; 14. Motor; 15. Sliding rod; 16. Limiting plate; 17. Spring; 18. Top plate; 19. Support column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 4 , the utility model provides a technical solution:

[0026] A flywheel ring gear positioning tool includes a processing table 1, two groups of mounting grooves 2 are symmetrically opened on the surface of the processing table 1, and a clamping assembly. The clamping assembly includes two groups of symmetrically arranged chucks 3, the chucks 3 are in contact with both sides of the flywheel body 4, and the chucks 3 are fixedly installed on one side of the mounting seat 5. The bottom of the mounting seat 5 is slidably matched with the mounting groove 2. A movable seat 11 is fixedly installed on the bottom of the mounting seat 5. The two groups of movable seats 11 are respectively installed in two groups of thread grooves in opposite directions opened on the surface of a bidirectional screw rod 12. The two ends of the bidirectional screw rod 12 are rotatably installed on the inner side of a mounting plate 13. The mounting plate 13 is fixedly installed on the bottom surface of the processing table 1. One end of the bidirectional screw rod 12 is transmission-matched with the output end of a motor 14, and the motor 14 is fixedly installed on the outer side of the mounting plate 13.

[0027] By setting up the motor 14, the bidirectional screw 12 can be driven to rotate by the output end of the motor 14, driving the two sets of movable seats 11 to move toward each other, and the movable seats 11 drive the mounting seat 5 and the chuck 3 on one side of the mounting seat 5 to move toward each other, thereby clamping the flywheel body 4 in the center of the processing table 1, so as to facilitate the alignment of the ring gear body 8 and improve the pressing efficiency.

[0028] It also includes an alignment component, which includes an alignment plate 6. The alignment plate 6 is arranged above the processing table 1. A limit ring 7 is fixedly installed in the center of the alignment plate 6. The inner diameter of the limit ring 7 is larger than the diameter of the flywheel body 4. The gear ring body 8 is placed in the limit ring 7. The four sides of the alignment plate 6 are respectively slidably matched with four groups of slide rods 15. The bottom of the slide rod 15 is fixedly installed on the top surface of the processing table 1. The top of the slide rod 15 is fixedly installed with a limit plate 16. A spring 17 is slidably sleeved on the surface of the slide rod 15. The bottom of the spring 17 is fixedly connected to the processing table 1, and the top of the spring 17 is in contact with the bottom of the alignment plate 6.

[0029] By setting the alignment plate 6 coaxially with the center of the processing table 1, when the operator places the ring gear body 8 in the limit ring 7, the ring gear body 8 is aligned with the clamped flywheel body 4, which greatly reduces the difficulty of aligning the ring gear body 8 with the flywheel body 4. At the same time, it also avoids manual alignment by the operator, improves processing efficiency, and reduces the labor intensity of the operator. By setting the slide rod 15, the ring gear body 8 and the flywheel body 4 can be kept in an aligned state when the alignment plate 6 moves downward to avoid deviation. When used in conjunction with the spring 17, the alignment plate 6 can be pushed to reset by the elastic force of the spring 17 after the press-fitting is completed, so as to facilitate the next press-fitting.

[0030] It also includes a press-fitting assembly, which includes a press-fitting head 9. The press-fitting head 9 is arranged above the alignment plate 6 and is coaxially arranged with the center of the alignment plate 6 and the processing table 1. The top center of the press-fitting head 9 is fixedly connected to the telescopic end of the cylinder 10. The cylinder 10 is fixedly installed on the top center of the top plate 18. The bottom of the top plate 18 is fixedly connected to the processing table 1 through four groups of support columns 19.

[0031] By providing the cylinder 10 , the press-fitting head 9 can be pushed downward by the telescopic end of the cylinder 10 , providing uniform downward pressure for the ring gear body 8 , thereby press-fitting the ring gear body 8 to the flywheel body 4 .

[0032] When in use, the device is moved to the specified position, the flywheel body 4 is moved between the two groups of chucks 3 on the top surface of the processing table 1, the motor 14 is started, and the output end of the motor 14 is controlled to drive the bidirectional screw 12 to rotate forward, so that the two groups of moving seats 11 move toward each other, and the moving seat 11 drives the chuck 3 to move through the mounting seat 5, so that the two groups of chucks 3 move toward each other, and the chucks 3 are moved to both sides of the flywheel body 4 and clamped, and the motor 14 is turned off, and the gear ring body 8 is moved above the limit ring 7, and the gear ring body 8 slides along the inclined surface at the top of the limit ring 7 into the limit ring 7, and the cylinder 10 is started. , the telescopic end of the control cylinder 10 moves downward, and the telescopic end of the cylinder 10 pushes the pressing head 9 to move downward. When it contacts the ring gear body 8, it pushes the ring gear body 8, the limit ring 7 and the alignment plate 6 to move downward. At the same time, the spring 17 is compressed by the alignment plate 6. When the ring gear body 8 is pressed onto the flywheel body 4, the telescopic end of the control cylinder 10 contracts to reset the pressing head 9, and the output end of the control motor 14 rotates in the opposite direction to release the flywheel body 4. Then, the flywheel body 4 and the ring gear body 8 are taken out of the limit ring 7 from the bottom to the top. The compressed spring 17 pushes the alignment plate 6 to reset, and the next press fitting can be carried out.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flywheel ring gear positioning tool, characterized by: It comprises a processing table (1), wherein the surface of the processing table (1) is symmetrically provided with two groups of mounting grooves (2); The invention also includes a clamping assembly, wherein the clamping assembly includes two groups of symmetrically arranged clamps (3), the clamps (3) abut against two sides of the flywheel body (4), the clamps (3) are fixedly mounted on one side of a mounting seat (5), and the bottom of the mounting seat (5) is slidably matched with the mounting groove (2); It also includes an alignment assembly, the alignment assembly including an alignment plate (6), the alignment plate (6) is arranged above the processing table (1), a limit ring (7) is fixedly installed at the center of the alignment plate (6), and a gear ring body (8) is placed in the limit ring (7); The invention also includes a press-fitting assembly, which includes a press-fitting head (9). The press-fitting head (9) is arranged above the alignment plate (6) and is coaxially arranged with the center of the alignment plate (6) and the processing table (1). The top center of the press-fitting head (9) is fixedly connected to the telescopic end of the cylinder (10).

2. A flywheel ring gear positioning fixture according to claim 1, characterized in that: A movable seat (11) is fixedly mounted on the bottom of the mounting seat (5), and two groups of movable seats (11) are respectively mounted in two groups of thread grooves in opposite directions opened on the surface of the bidirectional screw rod (12).

3. The flywheel ring gear positioning fixture according to claim 2, characterized in that: The two ends of the bidirectional screw rod (12) are rotatably mounted on the inner side of the mounting plate (13), and the mounting plate (13) is fixedly mounted on the bottom surface of the processing table (1). One end of the bidirectional screw rod (12) is transmission-matched with the output end of the motor (14), and the motor (14) is fixedly mounted on the outer side of the mounting plate (13).

4. The flywheel ring gear positioning fixture according to claim 1, characterized in that: The four sides of the alignment plate (6) are respectively slidably matched with four groups of slide bars (15), the bottom of the slide bars (15) are fixedly mounted on the top surface of the processing table (1), and the top of the slide bars (15) is fixedly mounted with a limit plate (16).

5. The flywheel ring gear positioning fixture according to claim 4, characterized in that: A spring (17) is slidably sleeved on the surface of the slide rod (15), the bottom of the spring (17) is fixedly connected to the processing table (1), and the top of the spring (17) contacts the bottom of the alignment plate (6).

6. The flywheel ring gear positioning fixture according to claim 1, characterized in that: The cylinder (10) is fixedly installed at the top center of the top plate (18), and the bottom of the top plate (18) is fixedly connected to the processing table (1) through four groups of support columns (19).

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