Inner core shaft riveting device for pulley production

Abstract

The utility model discloses an inner core shaft riveting device for pulley production, which comprises a bedplate, two vertical plates are fixedly mounted on one side of the bedplate, an inverted L-shaped mounting plate is fixedly mounted between one side and the top of each vertical plate, a circular truncated cone capable of being rotatably adjusted is mounted on the top of the bedplate, and the two vertical plates are fixedly mounted on the bedplate. Placing grooves are annularly formed in the edge of the top of the circular truncated cone at equal intervals, a telescopic cylinder is installed on the upper portion of the inverted-L-shaped installation plate, an inverted-convex extrusion block is fixedly installed at the telescopic end of the telescopic cylinder, two chain wheels are rotationally connected to the inner side of the inverted-L-shaped installation plate, a chain is installed between the two chain wheels, and shifting blocks are installed on the surface of the chain at equal intervals; the pulley inner core shaft riveting device has the functions of automatic extrusion riveting and automatic rotating conveying, is simple in structural design, convenient and fast to machine and use, stable and reliable, and the performance of the pulley inner core shaft riveting device can meet the use requirements of pulley production and machining.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulley production, in particular to an inner core shaft riveting device used for pulley production. Background Art

[0002] The pulley is a small wheel with a groove around it and can rotate around an axis; the pulley core includes a pulley core upper cover, a pulley core lower cover, balls, a bearing inner ring and connecting parts. During assembly, the bearing inner ring is first placed on the pulley core lower cover, and then the balls are placed around the bearing inner ring. Then, the pulley core upper cover is buckled on the pulley core lower cover, and the pulley core upper cover and the pulley core lower cover are connected by hammering the connecting parts. The above-mentioned assembly of the pulley core by hammering has installation risks, and the hammer assembly has low precision, slow processing speed and low efficiency. Therefore, in view of the above problems, it is necessary to design an inner core shaft riveting device for pulley production. Utility Model Content

[0003] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inner core shaft riveting device for pulley production, comprising a table plate, two vertical plates are fixedly installed on one side of the table plate, an inverted L-shaped mounting plate is fixedly installed between one side and the top of the two vertical plates, a rotatable and adjustable round table is installed on the top of the table plate, and placement grooves are equidistantly arranged in an annular shape on the edge of the top of the round table, a telescopic cylinder is installed on the upper part of the inverted L-shaped mounting plate, an inverted convex extrusion block is fixedly installed on the telescopic end of the telescopic cylinder, two sprockets are rotatably connected to the inner side of the inverted L-shaped mounting plate, a chain is installed between the two sprockets, and toggle blocks are installed at equal distances on the surface of the chain.

[0004] Preferably, the middle part of the table is rotatably connected to the first rotating shaft, the frustum is fixedly connected to the top of the first rotating shaft, the bottom of the frustum is fixedly connected to a support block in an annular shape at equal distances, the bottom of the support block is installed with a ball that rolls in contact with the top of the table, and the bottom of the first rotating shaft is fixedly installed with a first bevel gear.

[0005] Preferably, the bottom of the table is rotatably connected to a second rotating shaft, one end of the second rotating shaft is fixedly connected to a second bevel gear meshing with the first bevel gear, the other end of the second rotating shaft is fixedly connected to a worm wheel, the bottom of the table is rotatably connected to a worm meshing with the worm wheel, one end of the worm wheel is fixedly connected to the axis center of the sprocket at the bottom of the inverted L-shaped mounting plate.

[0006] Preferably, the chain links on the surface of the chain are fixedly installed with connecting blocks at equal distances, a mounting opening is opened on one side of the connecting block, a fixing pin is fixedly installed inside the mounting opening, the toggle block is rotatably connected to the middle part of the fixing pin, torsion springs are sleeved on both sides of the fixing pin, and the two ends of the torsion spring are fixedly connected to the toggle block and the fixing pin respectively.

[0007] Preferably, a ratchet is fixedly connected to the axis of the sprocket on the upper part of the inverted L-shaped mounting plate, a ratchet matching the ratchet is rotatably connected to the inner side of the inverted L-shaped mounting plate, and a tension spring is fixedly connected between the middle part of the ratchet and the inverted L-shaped mounting plate.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: by providing a table plate, a vertical plate, an inverted L-shaped mounting plate, a round table, a placement groove, a telescopic cylinder, an inverted convex extrusion block, a sprocket, a chain and a toggle block, the pulley inner core shaft riveting device has the functions of automatic extrusion riveting and automatic rotation and conveying, and it can perform conveying and loading and unloading operations during the extrusion riveting process, thereby effectively improving the efficiency and speed of the pulley inner core shaft riveting processing, and at the same time effectively improving the processing safety and ensuring the processing accuracy, and the pulley inner core shaft riveting device has a simple structural design, is convenient and easy to process and use, stable and reliable, and its performance can meet the use requirements of pulley production and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0010] In the attached picture:

[0011] Figure 1 This is a schematic diagram of the structure of the inner mandrel riveting device used in pulley production according to the utility model;

[0012] Figure 2 For this utility model Figure 1 A schematic diagram of a partial cross-sectional structure;

[0013] Figure 3 For this utility model Figure 1 Several structural diagrams of

[0014] Figure 4 For this utility model Figure 3 A schematic diagram of a partial cross-sectional structure;

[0015] In the figure: 1. table; 2. vertical plate; 3. inverted L-shaped mounting plate; 4. round table; 5. placement groove; 6. telescopic cylinder; 7. inverted convex extrusion block; 8. sprocket; 9. chain; 10. toggle block; 11. first rotating shaft; 12. first bevel gear; 13. support block; 14. ball; 15. second rotating shaft; 16. second bevel gear; 17. worm wheel; 18. worm; 19. connecting block; 20. mounting port; 21. fixing pin; 22. torsion spring; 23. ratchet; 24. ratchet; 25. tension spring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0017] The pulley inner core shaft riveting device has the functions of automatic extrusion riveting and automatic rotation conveying, and can perform conveying and loading and unloading operations during the extrusion riveting process, thereby effectively improving the efficiency and speed of the pulley inner core shaft riveting processing, and also effectively improving the processing safety and ensuring the processing accuracy.

[0018] Depend on Figures 1 to 4 The utility model comprises a table plate 1, two vertical plates 2 are fixedly installed on one side of the table plate 1, an inverted L-shaped mounting plate 3 is fixedly installed between one side and the top of the two vertical plates 2, a rotatable and adjustable round table 4 is installed on the top of the table plate 1, and placement grooves 5 are equidistantly provided in annular shapes on the edge of the top of the round table 4, a telescopic cylinder 6 is installed on the upper part of the inverted L-shaped mounting plate 3, an inverted convex extrusion block 7 is fixedly installed on the telescopic end of the telescopic cylinder 6, and the inverted convex extrusion block 7 is located directly above the circular rotation trajectory of the placement groove 5, and two sprockets 8 are rotatably connected to the inner side of the inverted L-shaped mounting plate 3, a chain 9 is installed between the two sprockets 8, and toggle blocks 10 are equidistantly installed on the surface of the chain 9.

[0019] The middle part of the table 1 is rotatably connected with a first rotating shaft 11, the frustum 4 is fixedly connected to the top of the first rotating shaft 11, and the bottom of the frustum 4 is annularly and equidistantly fixedly connected with a support block 13, the number of the support blocks 13 is the same as the number of the placement slots 5, and the support block 13 is located directly below the placement slots 5, and a ball 14 that is in rolling contact with the top of the table 1 is installed at the bottom of the support block 13, and a first bevel gear 12 is fixedly installed at the bottom of the first rotating shaft 11, and a second rotating shaft 15 is rotatably connected to the bottom of the table 1, one end of the second rotating shaft 15 is fixedly connected to a second bevel gear 16 meshing with the first bevel gear 12, and the other end of the second rotating shaft 15 is fixedly connected to a worm gear 17, and the bottom of the table 1 is rotatably connected to a worm 18 meshing with the worm gear 17, and one end of the worm 18 is fixedly connected to the axis of the sprocket 8 at the bottom of the inverted L-shaped mounting plate 3, so that the frustum 4 can be effectively rotated to perform loading and unloading operations through the placement slots 5;

[0020] By placing the combined pulley inner core shaft in the placement groove 5, and then driving the worm 18 to rotate by the equidistant rotation of the two sprockets 8 and the chain 9, the rotation of the worm 18 will drive the worm wheel 17 to rotate, and the rotation of the worm wheel 17 will transmit the second rotating shaft 15 to rotate and drive the second bevel gear 16 to rotate, and the rotation of the second bevel gear 16 will transmit the first bevel gear 12 to drive the first rotating shaft 11 and the round table 4 to rotate, and the rotation of the round table 4 will drive the combined pulley inner core shaft inside the placement groove 5 to rotate, so that the combined pulley inner core shaft rotates to the bottom of the inverted convex extrusion block 7, and then the inverted convex extrusion block 7 is driven downward by the extension of the telescopic cylinder 6 to perform extrusion riveting operations on the combined pulley inner core shaft; and the equidistant rotation of the round table 4 can stably and effectively perform loading and unloading operations.

[0021] The chain links on the surface of the chain 9 are fixedly installed with connecting blocks 19 at equal distances, and a mounting opening 20 is opened on one side of the connecting block 19, and a fixing pin 21 is fixedly installed inside the mounting opening 20, and the toggle block 10 is rotatably connected to the middle part of the fixing pin 21, and torsion springs 22 are sleeved on both sides of the fixing pin 21, and the two ends of the torsion spring 22 are respectively fixedly connected to the toggle block 10 and the fixing pin 21, and one side of the upper part of the inverted convex extrusion block 7 is located between two of the toggle blocks 10, so that one-way adjustment can be effectively performed; a ratchet 23 is fixedly connected to the axis center of the sprocket 8 on the upper part of the inverted L-shaped mounting plate 3, and a ratchet 24 matching and connected to the ratchet 23 is rotatably connected to the inner side of the inverted L-shaped mounting plate 3, and a tension spring 25 is fixedly connected between the middle part of the ratchet 24 and the inverted L-shaped mounting plate 3, so that the one-way stable rotation adjustment of the sprocket 8 and the chain 9 can be effectively ensured;

[0022] When the telescopic cylinder 6 is extended to drive the inverted convex extrusion block 7 to move downward and perform the extrusion and riveting operation on the combined pulley inner core shaft, the downward-moving inverted convex extrusion block 7 will squeeze the toggle block 10 to rotate the toggle block 10 and tighten the torsion spring 22. At the same time, the sprocket 8 and the chain 9 will remain stable through the restriction of the ratchet 23 and the ratchet teeth 24. When the inverted convex extrusion block 7 moves downward to extrude and rivet the combined pulley inner core shaft, the telescopic cylinder 6 is retracted to move the inverted convex extrusion block 7 upward. The upward movement of the inverted convex extrusion block 7 will toggle the toggle block 10 and drive the chain 9 to move. The movement of the chain 9 will drive the two sprockets 8 to rotate. The rotation of the sprocket 8 can effectively drive the rotation of the round table 4, thereby transporting and removing the pulley inner core shaft that has been extruded and riveted, and moving the pulley inner core shaft that needs to be extruded and riveted to the bottom of the inverted convex extrusion block 7.

[0023] The pulley inner core shaft riveting device has a simple structural design, is convenient and easy to process and use, and is stable and reliable. Its performance can meet the use requirements of pulley production and processing.

Claims

1. An inner mandrel riveting device for pulley production, comprising a table (1), characterized in that: Two vertical plates (2) are fixedly mounted on one side of the platform (1); an inverted L-shaped mounting plate (3) is fixedly mounted between one side and the top of the two vertical plates (2); a rotatable and adjustable round table (4) is mounted on the top of the platform (1); a placement groove (5) is provided in an annular manner at equal intervals on the edge of the top of the round table (4); a telescopic cylinder (6) is mounted on the upper part of the inverted L-shaped mounting plate (3); an inverted convex extrusion block (7) is fixedly mounted on the telescopic end of the telescopic cylinder (6); two sprocket wheels (8) are rotatably connected to the inner side of the inverted L-shaped mounting plate (3); a chain (9) is mounted between the two sprocket wheels (8); and a toggle block (10) is mounted at equal intervals on the surface of the chain (9).

2. The inner mandrel riveting device for pulley production according to claim 1, characterized in that: The middle of the table (1) is rotatably connected to a first rotating shaft (11), the truncated table (4) is fixedly connected to the top of the first rotating shaft (11), the bottom of the truncated table (4) is annularly and equidistantly fixedly connected to a support block (13), the bottom of the support block (13) is equipped with a ball (14) that is in rolling contact with the top of the table (1), and the bottom of the first rotating shaft (11) is fixedly equipped with a first bevel gear (12).

3. The inner mandrel riveting device for pulley production according to claim 2, characterized in that: The bottom of the table (1) is rotatably connected to a second rotating shaft (15), one end of the second rotating shaft (15) is fixedly connected to a second bevel gear (16) meshing with the first bevel gear (12), the other end of the second rotating shaft (15) is fixedly connected to a worm gear (17), the bottom of the table (1) is rotatably connected to a worm (18) meshing with the worm gear (17), one end of the worm (18) is fixedly connected to the axis of a sprocket (8) at the bottom of the inverted L-shaped mounting plate (3).

4. The inner mandrel riveting device for pulley production according to claim 1, characterized in that: The chain links on the surface of the chain (9) are fixedly installed with connecting blocks (19) at equal distances, a mounting opening (20) is opened on one side of the connecting block (19), a fixing pin (21) is fixedly installed inside the mounting opening (20), the toggle block (10) is rotatably connected to the middle of the fixing pin (21), both sides of the fixing pin (21) are sleeved with torsion springs (22), and the two ends of the torsion spring (22) are respectively fixedly connected to the toggle block (10) and the fixing pin (21).

5. The inner mandrel riveting device for pulley production according to claim 1, characterized in that: A ratchet (23) is fixedly connected to the axis of the sprocket (8) on the upper part of the inverted L-shaped mounting plate (3); a ratchet (24) matching and connected to the ratchet (23) is rotatably connected to the inner side of the inverted L-shaped mounting plate (3); and a tension spring (25) is fixedly connected between the middle part of the ratchet (24) and the inverted L-shaped mounting plate (3).

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