Assembly machine for needle bearing

Abstract

The utility model belongs to the technical field of bearing machining, particularly relates to an assembly machine for a needle bearing, and provides the following scheme aiming at the problems that a large number of needle rollers need to be sequentially placed into a retainer when the retainer is installed in the prior art, the working efficiency is low, and large-batch production is inconvenient to carry out. The automatic feeding device comprises an automatic feeder and a plurality of automatic feeding pipes arranged on the automatic feeder, and further comprises an operation table, and supporting legs are fixed to the four corners of the bottom end of the operation table; a rotating rod used for placing a retainer to be assembled is arranged on the operating table, a positioning assembly is arranged in the rotating rod, and the positioning assembly is used for limiting the retainer; an inverted-L-shaped frame is fixed to the top end of the operation table, the feeding ring is arranged on the lower side of the inverted-L-shaped frame and arranged on the surface of the retainer in a sleeving mode, and a lifting plate is fixed to the top end of the feeding ring; through the steps of automatic feeding, lifting, extruding and the like, automatic assembly of the needle bearing is achieved, and the assembly efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to an assembling machine for needle roller bearings. Background Art

[0002] A needle roller bearing is a roller bearing with cylindrical rollers. Relative to its diameter, the rollers are both thin and long, and such rollers are called needle rollers. Despite having a small cross-section, the bearing still has a high load-bearing capacity.

[0003] In the prior art, the most inefficient part in the manual assembly of needle roller bearings is installing the needle rollers into the cage. Installing one cage requires sequentially placing a large number of needle rollers into the cage, resulting in low work efficiency and inconvenience for mass production. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages in the prior art that installing one cage requires sequentially placing a large number of needle rollers into the cage, resulting in low work efficiency and inconvenience for mass production, and to propose an assembling machine for needle roller bearings.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An assembling machine for needle roller bearings includes an automatic feeder and a plurality of automatic feeding pipes arranged on the automatic feeder, and further includes:

[0007] An operating table, and support legs are fixedly arranged at the four corners of the bottom end of the operating table;

[0008] Wherein, a rotating rod for placing the cage to be assembled is arranged on the operating table, and a positioning component is arranged inside the rotating rod, and the positioning component is used for limiting the cage;

[0009] A feeding ring, an inverted L-shaped frame is fixedly arranged at the top end of the operating table, the feeding ring is arranged on the lower side of the inverted L-shaped frame, the feeding ring is sleeved on the surface of the cage, a lifting plate is fixedly arranged at the top end of the feeding ring, and a set of lifting components is arranged between the inverted L-shaped frame and the lifting plate, and the lifting components are used for driving the feeding ring to lift;

[0010] A plurality of accommodating grooves, the plurality of accommodating grooves are uniformly arranged in the feeding ring for accommodating needle rollers, the plurality of automatic feeding pipes are all fixedly arranged on the lifting plate, a plurality of communication holes are arranged in the feeding ring, the plurality of communication holes are respectively used for communicating the plurality of automatic feeding pipes and the plurality of accommodating grooves, and a set of pressing components is arranged in the feeding ring, and the pressing components are used for installing the needle rollers in the plurality of accommodating grooves into the cage.

[0011] In a possible design, the positioning component includes a limiting disk fixedly arranged at the top end of the rotating rod, and the cage is sleeved on the surface of the limiting disk.

[0012] In a possible design, a rotating shaft rotates inside the operating table, the rotating rod is fixed to the surface of the rotating shaft, a driving motor is fixed to the bottom end of the operating table, and the driving motor is fixedly connected to the rotating shaft through a coupling.

[0013] In a possible design, the lifting assembly includes a first electric push rod fixed to the top end of the inverted L-shaped frame, the lifting plate slides on the side end of the inverted L-shaped frame, and the lifting plate is fixed to the output end of the first electric push rod.

[0014] In a possible design, the extrusion assembly includes a plurality of communication grooves opened in the feeding ring, arc-shaped extrusion plates slide in the plurality of communication grooves, the plurality of arc-shaped extrusion plates respectively extend outwardly and movably into the plurality of accommodating grooves, an annular groove communicated with the plurality of communication grooves is opened in the feeding ring, inclined grooves are opened at the ends of the plurality of arc-shaped extrusion plates away from each other, an extrusion ring slides in the annular groove, the extrusion ring is in extrusion contact with the inclined surfaces of the plurality of arc-shaped extrusion plates, a plurality of first grooves are opened in the feeding ring, the plurality of first grooves are respectively communicated with the plurality of communication grooves, tension springs are fixed in the plurality of first grooves, the plurality of tension springs are respectively fixed to the side ends of the plurality of arc-shaped extrusion plates, two second electric push rods are fixed to the top end of the feeding ring, and the extrusion ring is fixed to the output ends of the two second electric push rods.

[0015] In a possible design, a limiting ring is fixed to the side end of the inverted L-shaped frame, and the limiting ring is used for limiting the needle rollers in the plurality of accommodating grooves.

[0016] In this application, the cage is placed on the surface of the limiting disc, the driving motor is started to drive the rotating shaft and the rotating rod to rotate, the rotating rod drives the cage to move to the lower side of the feeding ring, the automatic feeder continuously feeds into the automatic feeding pipe, the needle rollers in the automatic feeding pipe are sent to the accommodating grooves through the communication holes, the first electric push rod is started to drive the lifting plate and the feeding ring to descend and sleeved on the surface of the cage, the two second electric push rods are started to drive the extrusion ring to slide downward in the annular groove, during the downward movement of the extrusion ring, the inclined surfaces of the arc-shaped extrusion plates are extruded, so that the annular arc-shaped extrusion plates all move towards the approaching direction, and the needle rollers in the accommodating grooves are synchronously extruded into the cage by the movement of the arc-shaped extrusion plates;

[0017] The second electric push rod is started to drive the extrusion ring to reset, and the elastic force of the tension spring pulls the arc-shaped extrusion plate back into the communication groove, so that the accommodating groove is emptied again, the automatic feeding pipe continues to feed into the accommodating groove, and at the same time the feeding ring moves upward and is sleeved on the surface of the limiting ring, and the limiting ring will limit the needle rollers in the accommodating groove.

[0018] Beneficial effects

[0019] In the present utility model, for the assembling machine for a needle roller bearing, through the extrusion assembly, the effect of installing all the needle rollers into the cage at one time can be achieved;

[0020] In the present utility model, through steps such as automatic feeding, lifting, and extrusion, the automatic assembly of the needle roller bearing is realized, greatly improving the assembly efficiency. Through the precise positioning assembly and extrusion assembly, the accurate positioning and uniform distribution of the needle rollers during the assembly process are ensured, improving the assembly quality, reducing the manual operation links, lowering the labor intensity of workers, and at the same time avoiding the assembly errors caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front perspective view of an assembling machine for a needle roller bearing proposed by the present utility model;

[0022] Figure 2 is the bottom view of an assembling machine for a needle roller bearing proposed by the present utility model;

[0023] Figure 3 is the first partial cross-sectional view of an assembling machine for a needle roller bearing proposed by the present utility model;

[0024] Figure 4 is the second partial cross-sectional view of an assembling machine for a needle roller bearing proposed by the present utility model.

[0025] In the figure: 1, operating table; 2, support leg; 3, rotating shaft; 4, rotating rod; 5, limiting disc; 6, cage; 7, inverted L-shaped frame; 8, first electric push rod; 9, lifting plate; 10, feeding ring; 11, automatic feeding pipe; 12, driving motor; 13, second electric push rod; 14, accommodating groove; 15, annular groove; 16, arc-shaped extrusion plate; 17, communicating groove; 18, extrusion ring; 19, first groove; 20, tension spring; 21, communication hole; 22, limiting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] Embodiment 1

[0028] Referring to Figures 1 - 4 , an assembling machine includes an operating table 1. Support legs 2 are fixedly arranged at the four corners of the bottom end of the operating table 1 for stably supporting the entire assembling machine. A rotating rod 4 is arranged on the operating table 1, and a positioning assembly is installed inside the rotating rod 4. Specifically, a limiting disc 5 is fixed at the top end of the rotating rod 4, and the cage 6 to be assembled is sleeved on the limiting disc 5 to realize the limiting and fixing of the cage 6.

[0029] A rotating shaft 3 is rotatably installed inside the operating table 1, and a rotating rod 4 is fixed to the surface of the rotating shaft 3. A driving motor 12 is fixed to the bottom end of the operating table 1, and the driving motor 12 is fixedly connected to the rotating shaft 3 through a coupling to drive the rotating shaft 3 and the rotating rod 4 to rotate, thereby driving the cage 6 to rotate, facilitating the assembly of the needle rollers.

[0030] An inverted L-shaped frame 7 is fixed to the top end of the operating table 1. A feeding ring 10 is arranged on the lower side of the inverted L-shaped frame 7 and sleeved on the surface of the cage 6. A lifting plate 9 is fixed to the top end of the feeding ring 10. A set of lifting components is arranged between the lifting plate 9 and the inverted L-shaped frame 7. Specifically, a first electric push rod 8 is fixed to the top end of the inverted L-shaped frame 7. The lifting plate 9 slides on the side end of the inverted L-shaped frame 7 and is fixed to the output end of the first electric push rod 8. By controlling the telescopic movement of the first electric push rod 8, the feeding ring 10 is driven to perform a lifting movement.

[0031] A plurality of accommodating grooves 14 are evenly formed in the feeding ring 10 for accommodating the needle rollers. A plurality of automatic feeding pipes 11 are fixed to the lifting plate 9. A plurality of communication holes 21 are formed in the feeding ring 10, and the communication holes 21 communicate the automatic feeding pipes 11 and the accommodating grooves 14 respectively to realize the automatic feeding of the needle rollers. A set of extrusion components is further arranged in the feeding ring 10, including a plurality of arc-shaped extrusion plates 16 sliding in the communication grooves 17, and the arc-shaped extrusion plates 16 extend outwards and penetrate into the accommodating grooves 14. An annular groove 15 and a plurality of first grooves 19 are formed in the feeding ring 10. An extrusion ring 18 slides in the annular groove 15. The extrusion ring 18 is in extrusion contact with the inclined surface of the arc-shaped extrusion plate 16, and the arc-shaped extrusion plate 16 is kept in a reset state by a tension spring 20. Two second electric push rods 13 are fixed to the top end of the feeding ring 10. The extrusion ring 18 is fixed to the output ends of the two second electric push rods 13. By controlling the telescopic movement of the second electric push rods 13, the extrusion ring 18 is pushed to move, thereby driving the arc-shaped extrusion plates 16 to move inwards, and pushing the needle rollers in the accommodating grooves 14 into the cage 6.

[0032] Embodiment 2

[0033] Reference Figure 1 , on the basis of Embodiment 1, an improvement is made: An assembling machine for needle roller bearings is applied in the technical field of bearing processing. A limiting ring 22 is fixed to the side end of the inverted L-shaped frame 7 for limiting the needle rollers in the accommodating grooves 14 before the needle rollers are loaded, preventing the needle rollers from scattering during the feeding process.

[0034] However, as is well known to those skilled in the art, the working principles and wiring methods of the automatic feeder, the first electric push rod 8, the second electric push rod 13, and the driving motor 12 are common knowledge, and they all belong to conventional means or well-known common sense. Therefore, they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0035] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An assembling machine for a needle roller bearing, comprising an automatic feeder and a plurality of automatic feeding tubes (11) arranged on the automatic feeder, characterized in that, It further includes: An operating table (1), and support legs (2) are fixedly arranged at the four corners of the bottom end of the operating table (1); Among them, a rotating rod (4) for placing the cage (6) to be assembled is arranged on the operating table (1), and a positioning component is arranged inside the rotating rod (4), and the positioning component is used for limiting the cage (6); A feeding ring (10), an inverted L-shaped frame (7) is fixedly arranged at the top end of the operating table (1), the feeding ring (10) is arranged on the lower side of the inverted L-shaped frame (7), the feeding ring (10) is sleeved on the surface of the cage (6), a lifting plate (9) is fixedly arranged at the top end of the feeding ring (10), and a set of lifting components is arranged between the inverted L-shaped frame (7) and the lifting plate (9), and the lifting components are used for driving the feeding ring (10) to lift; Multiple accommodating grooves (14), the multiple accommodating grooves (14) are evenly formed in the feeding ring (10) for accommodating needle rollers, multiple automatic feeding pipes (11) are fixedly arranged on the lifting plate (9), multiple communication holes (21) are formed in the feeding ring (10), the multiple communication holes (21) are respectively used for communicating the multiple automatic feeding pipes (11) and the multiple accommodating grooves (14), and a set of pressing components is arranged in the feeding ring (10), and the pressing components are used for installing the needle rollers in the multiple accommodating grooves (14) into the cage (6).

2. The assembly machine for a needle roller bearing according to claim 1, wherein, The positioning component includes a limiting disc (5) fixedly arranged at the top end of the rotating rod (4), and the cage (6) is sleeved on the surface of the limiting disc (5).

3. The assembly machine for a needle roller bearing according to claim 2, characterized in that, A rotating shaft (3) rotates inside the operating table (1), the rotating rod (4) is fixedly arranged on the surface of the rotating shaft (3), a driving motor (12) is fixedly arranged at the bottom end of the operating table (1), and the driving motor (12) is fixedly connected to the rotating shaft (3) through a coupling.

4. An assembling machine for a needle roller bearing according to any one of claims 1-3, characterized in that, The lifting component includes a first electric push rod (8) fixedly arranged at the top end of the inverted L-shaped frame (7), the lifting plate (9) slides on the side end of the inverted L-shaped frame (7), and the lifting plate (9) is fixedly arranged at the output end of the first electric push rod (8).

5. An assembling machine for a needle roller bearing according to claim 1, wherein, The extrusion assembly includes a plurality of communication grooves (17) formed in the feeding ring (10). Arc-shaped extrusion plates (16) are slidably disposed in the plurality of communication grooves (17). The plurality of arc-shaped extrusion plates (16) respectively extend outwards and penetrate into the plurality of accommodating grooves (14). An annular groove (15) communicating with the plurality of communication grooves (17) is formed in the feeding ring (10). Inclined grooves are formed at the ends of the plurality of arc-shaped extrusion plates (16) away from each other. An extrusion ring (18) is slidably disposed in the annular groove (15). The extrusion ring (18) is in extrusion contact with the inclined surfaces of the plurality of arc-shaped extrusion plates (16). A plurality of first grooves (19) are formed in the feeding ring (10). The plurality of first grooves (19) communicate with the plurality of communication grooves (17) respectively. A tension spring (20) is fixed in each of the plurality of first grooves (19). The plurality of tension springs (20) are respectively fixed to the side ends of the plurality of arc-shaped extrusion plates (16). Two second electric push rods (13) are fixed to the top end of the feeding ring (10). The extrusion ring (18) is fixed to the output ends of the two second electric push rods (13).

6. The assembling machine for a needle roller bearing according to claim 5, wherein A limiting ring (22) is fixed to the side end of the inverted L-shaped frame (7). The limiting ring (22) is used for limiting the needle rollers in the plurality of accommodating grooves (14).

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