Split cylindrical roller bearing stamping retainer riveting tool

Abstract

This utility model relates to the technical field of cage stamping auxiliary devices, specifically a riveting fixture for a split cylindrical roller bearing stamped cage. It includes a ring, a lifting assembly, and a riveting module. The ring is positioned between two half-rings of the stamped cage, with its inner diameter surface abutting the outer surface of the inner locking plate. The lifting assembly includes a bracket and a lifting drive device fixed to the bracket. The riveting module includes a module body located at the output end of the lifting drive device, multiple telescopic rods slidably and telescopically mounted on the module body, a telescopic drive device connected to one end of each telescopic rod, and a riveting head connected to the other end of each telescopic rod. The telescopic drive device drives the telescopic rods and the riveting head to move radially along the ring, providing riveting force at the overlapping position of the two inner locking plates on the inner side of the inner locking plate. This design facilitates riveting, thereby improving processing efficiency and ensuring the tightness and reliability of the riveting.

Description

Technical Field

[0001] This utility model relates to the technical field of cage stamping auxiliary devices, specifically a riveting fixture for a split cylindrical roller bearing stamping cage. Background Technology

[0002] Cylindrical roller bearings are particularly suitable for applications requiring large radial loads due to their high radial load capacity and low coefficient of friction. When cylindrical roller bearings adopt a stamped cage structure, more rollers can be accommodated in the same space, resulting in a compact structure and lighter weight. Therefore, cylindrical roller bearings with stamped cages are commonly used in applications with limited installation space, high limiting speeds, and increased radial loads.

[0003] The cylindrical roller bearing stamped cages include a type of split cylindrical roller bearing stamped cage, which comprises two half-cage assemblies assembled together. Each half-cage assembly includes two riveted half-stamped cages. During manufacturing, since the half-stamped cages need to be riveted on one side of the inner diameter of the cage, using existing riveting devices requires inserting the rivet head into the inside of the cage, which is inconvenient for processing and requires frequent adjustments to the position and angle of the half-cage assemblies, resulting in low efficiency. Utility Model Content

[0004] In view of the deficiencies of the prior art, this utility model provides a riveting fixture for a split cylindrical roller bearing stamped cage. It is reasonably designed for the special structure of the split cylindrical roller bearing stamped cage, which facilitates the riveting process, thereby improving the processing efficiency and ensuring the tightness and reliability of the riveting.

[0005] To achieve the above objectives, the present invention provides a riveting fixture for a split cylindrical roller bearing stamped cage. The split cylindrical roller bearing stamped cage includes two assembled half-cage assemblies. Each half-cage assembly includes two stamped half-cages, each half-cage comprising a semi-ring and a plurality of inner locking plates disposed on one side of the inner diameter of the semi-ring. The two half-cages are axially joined together, and the inner locking plates of one half-cage and the other half-cage at least partially overlap radially in the semi-ring. The fixture includes a ring, a lifting assembly, and a riveting module; the ring is disposed on... Between the two semi-circular half-stamped retainers, the inner diameter surface of the ring is in contact with the outer surface of the inner locking plate; the lifting assembly includes a bracket and a lifting drive device fixed on the bracket; the riveting module includes a module body disposed at the output end of the lifting drive device, a plurality of telescopic rods slidably and telescopically disposed on the module body, a telescopic drive device connected to one end of the telescopic rods, and a rivet head connected to the other end of the telescopic rods. The telescopic drive device drives the telescopic rods and the rivet head to move radially along the ring and provides riveting force at the position where the two inner locking plates overlap on the inner side of the inner locking plate.

[0006] Furthermore, the two half-cage assemblies are fixed by a connecting assembly, and the end face of the ring has a groove for accommodating the connecting assembly.

[0007] Furthermore, two grooves are formed on one end face of the ring, and the two grooves are 180° apart.

[0008] Furthermore, the lifting drive device is a first hydraulic cylinder.

[0009] Furthermore, the telescopic drive device is a second hydraulic cylinder.

[0010] Furthermore, the bracket is connected to a fixing frame, the fixing frame is connected to a guide sleeve, and the guide sleeve is slidably fitted onto the outside of the module body.

[0011] Furthermore, the outer locking plates on one side of the outer diameter of the semi-ring are arranged in a plurality of outer locking plates, and the inner locking plates are positioned radially corresponding to the outer locking plates of the semi-ring; the outer diameter surface of the ring is in contact with the inner surface of the outer locking plates.

[0012] The beneficial effects of this utility model are as follows: the special structure of the stamped cage of the split cylindrical roller bearing has been reasonably designed to facilitate riveting, thereby improving processing efficiency and ensuring the tightness and reliability of the riveting. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of a split cylindrical roller bearing stamped cage in one embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure of the semi-cage assembly in one embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of two half-stamped retainers in one embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the riveting fixture for the stamped cage of a split cylindrical roller bearing in one embodiment of the present invention;

[0017] Figure 5 middle Figure 4 A schematic diagram of the structure of part A;

[0018] Figure 6 This is a side view of a riveting fixture for a split cylindrical roller bearing stamped cage in one embodiment of the present invention;

[0019] Figure 7 This is a schematic diagram of the structure of the ring in one embodiment of the present invention;

[0020] Figure 8 This is a schematic diagram of the riveting module in one embodiment of the present invention;

[0021] Figure 9 This is a top view of the riveting module in one embodiment of the present invention;

[0022] Figure 10 This is a diagram showing the usage state of the riveting fixture for the stamped cage of a split cylindrical roller bearing in one embodiment of this utility model.

[0023] Figure 11 This is a top view of a riveting fixture for a split cylindrical roller bearing stamped cage in one embodiment of the present invention;

[0024] Figure 12 for Figure 11 Cross-sectional view of CC in the middle;

[0025] In the diagram: 10. Split cylindrical roller bearing stamped cage; 11. Half-cage assembly; 12. Half-stamped cage; 13. Half-ring; 1301. Connecting protrusion; 1302. Locking point; 1303. Locking hole; 14. Inner locking plate; 1401. First locking part; 1402. Second locking part; 15. Outer locking plate.

[0026] 100. Circular ring; 110. Inner diameter surface; 120. End face; 121. Groove.

[0027] 200. Lifting assembly; 210. Bracket; 211. Fixing frame; 2111. Guide sleeve; 220. Lifting drive device.

[0028] 300. Riveting module; 310. Module body; 320. Telescopic rod; 330. Telescopic drive device; 340. Rivet head. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] See Figure 1 , Figure 2 and Figure 3 A schematic diagram of a split cylindrical roller bearing stamped cage 10 is shown, including two half-cage assemblies 11 assembled together. Each half-cage assembly 11 includes two half-stamped cages 12. Each half-stamped cage 12 includes a half-ring 13 and a plurality of inner locking plates 14 disposed on one side of the inner diameter of the half-ring 13. The two half-stamped cages 12 are axially joined, and the inner locking plates 14 of one half-stamped cage 12 at least partially overlap with the inner locking plates 14 of the other half-stamped cage 12 in the radial direction of the half-ring 13. Specifically, the inner locking plates 14 include a first locking portion 1401 and a second locking portion 1402 that are radially offset from each other in the half-ring 13. The second locking portions 1402 of one half-stamped cage 12 overlap and connect with the second locking portions 1402 of the other half-stamped cage 12 in the radial direction of the half-ring 13.

[0031] See Figures 4-9 The diagram shows a structural schematic of the split cylindrical roller bearing stamped cage riveting fixture of this utility model, which is used for the above-mentioned cage manufacturing. It includes a ring 100, a lifting assembly 200, and a riveting module 300. The riveting module 300 is disposed on the lifting assembly 200, and the lifting assembly 200 drives the riveting module 300 to rise and fall. The ring 100 is disposed independently of the riveting module 300 and the lifting assembly 200, and cooperates with the two half stamped cages 12 to be assembled.

[0032] See also Figure 4 , Figure 6 and Figure 12The lifting assembly 200 includes a bracket 210 and a lifting drive device 220 fixed on the bracket 210; in a specific embodiment, the lifting drive device 220 is a first hydraulic cylinder. The riveting module 300 includes a module body 310 disposed at the output end of the lifting drive device 220, a plurality of telescopic rods 320 slidably and telescopically disposed on the module body 310, a telescopic drive device 330 connected to one end of the telescopic rods 320, and a riveting head 340 connected to the other end of the telescopic rods 320. The telescopic drive device 330 drives the telescopic rods 320 and the riveting head 340 to move radially along the annulus 100, and provides riveting force at the overlapping position of the two inner locking plates 14 on the inner side of the inner locking plate 14. The range of the force can be defined according to the material and calculated according to empirical formulas in the art. See also... Figure 12 In one embodiment, the telescopic drive device 330 is a second hydraulic cylinder. The hydraulic control system can control all the telescopic drive devices 330 to move synchronously, thereby driving multiple rivet heads 340 to move radially synchronously, further improving processing efficiency.

[0033] like Figure 7 , Figures 10-12 As shown, the ring 100 is disposed between the half rings 13 of the two half stamped retainers 12. The inner diameter surface 110 of the ring 100 is in contact with the outer surface of the inner locking plate 14. Specifically, the inner diameter surface 110 is in contact with the outer second locking part 1402.

[0034] For the structure of the split cylindrical roller bearing stamped cage 10, this utility model uses customized tooling for riveting. After the semi-stamped cage 12 is independently manufactured, the two semi-stamped cages are riveted together to form the semi-cage assembly 11. First, the two semi-stamped cages 12 are respectively installed on the ring 100. There are two grooves 121 on both sides of the ring 100. The two grooves 121 are installed at the connection points of the semi-stamped cages 12. Then, the lifting assembly 200 is adjusted to drive the riveting module 300 to rise and fall. After moving to a suitable height, the telescopic drive device 330 drives the telescopic rod 320 and the riveting head 340 to move radially along the ring 100, and provides riveting force on the inner side of the inner locking plate 14 at the position where the two inner locking plates 14 overlap, ensuring the tightness and reliability of the riveting. It should be noted that the width of the ring 100 is the same as the width of the hollow half-cage assembly 11, the outer diameter of the ring 100 is equal to the difference between the outer diameter of the half-stamped cage and the plate thickness, and the inner diameter of the ring 100 is equal to the maximum value of the two half-stamped cages combined together.

[0035] The aforementioned riveting fixture for the split cylindrical roller bearing stamped cage is designed specifically for the special structure of the split cylindrical roller bearing stamped cage 10. It is equipped with a lifting assembly 200 to drive the riveting module 300 to rise and fall as a whole, thereby simultaneously adjusting the height of the multiple riveting heads 340 on it so that the whole assembly can be inserted into one side of the inner diameter of the split cylindrical roller bearing stamped cage 10. Then, the ring 100, in conjunction with the multiple riveting heads 340, stamps multiple rivet points of the split cylindrical roller bearing stamped cage 10, which facilitates the riveting process, thereby improving processing efficiency and ensuring the tightness and reliability of the riveting.

[0036] like Figure 7 and Figure 12 As shown, in one embodiment, the two semi-cage assemblies 11 are fixed by a connecting assembly, and the end face 120 of the ring 100 has a groove 121 for accommodating the connecting assembly. Specifically, in one embodiment, one end face of the ring 100 has two grooves 121, which are 180° apart.

[0037] See Figures 1-3 In this embodiment, one end of the semi-ring 13 is provided with a connecting protrusion 1301, and the connecting protrusion 1301 has a locking point 1302. The other end of the semi-ring 13 has a locking hole 1303. The semi-cage assembly 11 is designed as a male-female fit, with one side protruding half of the end face and protruding locking points 1302 on both outer sides; the other side is designed as a female fit, with round holes at both ends as locking holes 1303 that mate with the locking points 1302. During assembly, the connecting protrusion 1301 of one semi-stamped cage 12 is inserted into the inner side of the semi-ring 13 of the other semi-stamped cage 12, and the protruding locking point 1302 mates with the locking hole 1303, and then the locking point 1302 is just locked into the locking hole 1303. In this embodiment, the groove 121 corresponds to the position where the locking point 1302 mates with the locking hole 1303, leaving a space for the connecting protrusion 1301.

[0038] like Figure 4 and Figure 5 As shown, in one embodiment, the bracket 210 is connected to a fixing frame 211, and the fixing frame 211 is connected to a guide sleeve 2111. The guide sleeve 2111 is slidably fitted onto the outside of the module body 310. With this configuration, when the lifting drive device 220 drives the module body 310 to move up and down, the guide sleeve 2111 can guide the module body 310 to avoid deviation.

[0039] See Figure 10 , Figure 11 and Figure 12In one embodiment, a plurality of outer locking plates 15 on one side of the outer diameter of the semi-ring 13, and an inner locking plate 14 and an outer locking plate 15 are positioned radially opposite to each other on the semi-ring 13; the outer diameter surface of the ring 100 is in contact with the inner surface of the outer locking plate 15.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

Claims

1. A riveting fixture for a split cylindrical roller bearing stamped cage, the split cylindrical roller bearing stamped cage comprising two half-cage assemblies assembled together, each half-cage assembly comprising two half-stamped cages, each half-stamped cage comprising a half-ring and a plurality of inner locking plates disposed on one side of the inner diameter of the half-ring, the two half-stamped cages being axially abutted, the inner locking plates of one half-stamped cage and the inner locking plates of the other half-stamped cage at least partially overlapping radially in the half-ring, characterized in that: include A circular ring is disposed between the two semi-circular rings of the two semi-stamped retainers, the inner diameter surface of the circular ring being in contact with the outer surface of the inner locking plate; The lifting assembly includes a bracket and a lifting drive device fixed on the bracket; The riveting module includes a module body disposed at the output end of the lifting drive device, a plurality of telescopic rods slidably and telescopically disposed on the module body, a telescopic drive device connected to one end of the telescopic rods, and a riveting head connected to the other end of the telescopic rods. The telescopic drive device drives the telescopic rods and the riveting head to move radially along the ring, and provides riveting force at the position where the two inner locking plates overlap on the inner side of the inner locking plate.

2. The split cylindrical roller bearing stamped retainer riveting tool of claim 1, wherein: The two half-cage assemblies are fixed by a connecting assembly, and the end face of the ring has a groove for accommodating the connecting assembly.

3. The split cylindrical roller bearing stamped cage riveting tool of claim 2, wherein: Two grooves are formed on one end face of the ring, and the two grooves are 180° apart.

4. The split cylindrical roller bearing stamped retainer riveting tool of claim 1, wherein: The lifting drive device is a first hydraulic cylinder.

5. The split cylindrical roller bearing stamped cage riveting tool of claim 1, wherein: The telescopic drive device is a second hydraulic cylinder.

6. The split cylindrical roller bearing stamped cage riveting tool of claim 1, wherein: The bracket is connected to a fixing frame, and the fixing frame is connected to a guide sleeve. The guide sleeve is slidably fitted onto the outside of the module body.

7. The split cylindrical roller bearing stamped cage riveting tool of claim 1, wherein: Multiple outer locking plates on one side of the outer diameter of the semi-ring, the inner locking plate and the outer locking plate are positioned radially corresponding to each other in the semi-ring; the outer diameter surface of the ring is in contact with the inner surface of the outer locking plate.

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