Split inner ring full complement thrust angular contact ball bearing press breaking tool

Abstract

The utility model relates to bearing processing technical field especially relates to a kind of split inner ring full installation thrust angle contact ball bearing press-break tooling. Including: the positioning seat for connecting press machine, the pressure column being arranged below the positioning seat, the fixed plate being connected with the positioning seat of the pressure column and the support being arranged directly below the pressure column and being used to install axle circle, the bottom end of the pressure column is aligned with the notch of the axle circle, and pressure is applied downward along the direction of the notch to break the axle circle. The utility model provides a kind of split inner ring full installation thrust angle contact ball bearing press-break tooling with the advantages of good press-break quality, high work efficiency, low cost, simple operation and convenient disassembly and assembly.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, and in particular to a tooling for breaking apart a split inner ring full-load thrust angular contact ball bearing. Background Technology

[0002] In special application conditions, the shaft ring is often split to facilitate the installation of a full complement thrust ball bearing. If wire EDM is used, there may be material shortages at the cut points, requiring material filling to maintain the integrity of the shaft ring. Therefore, to ensure the integrity of the split shaft ring, a crushing fixture is often used, with a 1-shaped notch cut into the shaft ring before crushing. However, using traditional crushing fixtures makes it difficult to guarantee crushing accuracy, and fragments are prone to breaking off after crushing, leading to bearing defects.

[0003] Chinese patent CN113182629A discloses a tooling for machining split bearing rings. The tooling includes: a base with a clearance groove extending in the front-rear direction and opening upwards; a left support surface and a right support surface on the left and right sides of the clearance groove, respectively; two lower clamping plates arranged in the left-right direction, with their opposite ends supported on the left and right support surfaces, and a lower gap between their opposite ends; two upper clamping plates arranged in the left-right direction, with an upper gap between their opposite ends, which is aligned vertically with the lower gap; fixing screws for connecting the upper and lower clamping plates after the split bearing ring is placed between them; and a pressure-gathering rod for gathering and transmitting pressure, extending in the front-rear direction and positioned at the upper gap between the two upper clamping plates.

[0004] However, this technical solution has two clamping plates, each divided into two parts, with two pairs of screws located at both ends of the clamping plates. The middle area (near the gap) lacks direct clamping, resulting in insufficient clamping force and poor crushing quality. Furthermore, the entire ring is first machined as a whole, and then removed and cut apart using special equipment. The whole process requires multiple machines, making it cumbersome and inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a tooling for breaking split inner ring full-load thrust angular contact ball bearings. Power is provided by a press, and the pressure column applies downward pressure along the notch of the bearing ring to achieve the breaking purpose. The pressure column is stable enough throughout the process and will not easily deviate. Furthermore, there is no need for secondary clamping, no cutting wear, and the fracture surface matches naturally, ensuring the quality of the breaking process.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tooling for breaking a split inner ring full-component thrust angular contact ball bearing includes: a positioning seat for connecting a press, a pressure column disposed below the positioning seat, a fixing plate connecting the pressure column to the positioning seat, and a support disposed directly below the pressure column for mounting the bearing ring. The bottom end of the pressure column is aligned with the notch of the bearing ring, and pressure is applied downward along the notch direction to break the bearing ring.

[0008] Preferably, the shaft ring is fitted into the mounting groove of the support and suspended above the cavity inside the support.

[0009] Preferably, the notch is in the shape of an "I".

[0010] Preferably, the depth of the mounting groove is less than the width of the shaft ring.

[0011] Preferably, the positioning head of the pressure column is fitted with the fixing hole on the fixing plate.

[0012] Preferably, the positioning seat is provided with a receiving groove for installing the pressure column.

[0013] Preferably, the shape of the receiving groove is adapted to the shape of the pressure column.

[0014] Preferably, the length of the receiving groove is adapted to the length of the pressure column.

[0015] Preferably, the pressure column is a cylinder with an arc-shaped bottom end.

[0016] Preferably, the press is fixedly connected to the groove of the positioning seat.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) By installing the pressure column on the positioning seat and fixing the two by the fixing plate, the present invention can maximize the stability and firmness of the pressure column, so that it can press down accurately during operation, ensuring the quality of the pressing and breaking. Moreover, the entire process from the press to the breaking does not require secondary clamping, has no cutting loss, and the fracture surface matches naturally, achieving the purpose of high efficiency, high precision and low cost of splitting.

[0019] (2) By fitting the shaft ring into the mounting groove of the support and suspending it above the mounting groove inside the support, this utility model can ensure that the bending moment at the notch is the maximum and that the fracture only occurs at the predetermined notch, thus avoiding interference or damage to the support. The inner diameter of the mounting groove is slightly larger than the outer diameter of the shaft ring, so the shaft ring can be quickly removed from the mounting groove and the shaft ring can be quickly replaced. This makes disassembly and assembly convenient, effectively reducing labor intensity and making it easy to achieve mass production.

[0020] (3) By adopting a “I” shaped notch and setting it facing upwards and directly opposite the bottom of the pressure column, this utility model can ensure that the shaft ring generates extremely high stress concentration at the moment of loading of the pressure column, and the starting point of the fracture is unique and clear, avoiding the fragmentation or displacement caused by multiple crack sources, thereby ensuring that the fracture surface is straight and has a five-point difference, which meets the requirements of subsequent shaft ring installation.

[0021] In summary, this utility model has the advantages of good crushing quality, high working efficiency, low cost, simple operation and convenient assembly and disassembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A;

[0024] Figure 3 This is a top view of the support of this utility model;

[0025] Figure 4 This is a sectional view of the support of this utility model;

[0026] Figure 5 This is a top view of the positioning seat of this utility model;

[0027] Figure 6 This is a side view of the positioning seat of this utility model;

[0028] Figure 7 This is a side view of the fixing plate of this utility model;

[0029] Figure 8 This is a top view of the pressure column of this utility model. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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 do not indicate or imply that the device or component 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. 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 with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Example

[0033] like Figures 1-8 As shown, this embodiment provides a cutting tool for splitting a full-size thrust angular contact ball bearing with an inner ring, including: a positioning seat 2 for connecting a press 1, a pressure column 3 disposed below the positioning seat 2, a fixing plate 4 connecting the pressure column 3 to the positioning seat 2, and a support 5 disposed directly below the pressure column 3 for mounting the bearing ring 100. The entire process from the press 1 down to the breaking point requires no secondary clamping, has no cutting loss, and the fracture surface matches naturally, achieving high efficiency, high precision, and low cost in splitting. The bottom end of the pressure column 3 is aligned with the notch 110 of the bearing ring 100 and applies downward pressure along the direction of the notch 110. The pressure column 3 transfers the load of the press 1 to the bearing ring 100 to break the bearing ring 100.

[0034] The shaft ring 100 is adapted to be installed in the mounting groove 51 of the support 5 and suspended above the mounting groove 52 inside the support 5. The bending moment is the largest at the notch 110, ensuring that the fracture only occurs at the predetermined notch 110, avoiding interference or damage to the support 5. More preferably, the inner diameter of the mounting groove 51 is slightly larger than the outer diameter of the shaft ring 100, which allows the shaft ring 100 to be quickly removed from the mounting groove 51 and can also be quickly replaced. That is, it is easy to disassemble and assemble, effectively reducing labor intensity and making it easy to achieve mass production.

[0035] Meanwhile, the mounting groove 52 can accommodate the broken shaft ring 100, providing clearance and fracture space for the notch 110, ensuring precise and controllable three-point bending fracture.

[0036] In this embodiment, the fixing plate 4 can be fixed to the positioning seat 2 by countersunk screws 42 to ensure the stability and firmness of the pressure column 3.

[0037] In this embodiment, the notch 110 is in the shape of an "I" and is set upwards, which can ensure that the shaft ring 100 generates extremely high stress concentration at the moment of loading of the pressure column 3, and the starting point of the fracture is unique and clear, avoiding fragmentation or displacement caused by multiple crack sources, thereby ensuring that the fracture surface is straight and has a five-point difference, which meets the requirements for subsequent installation of the shaft ring 100.

[0038] In this embodiment, the depth of the mounting groove 51 is less than the width of the shaft ring 100, so that the end face of the shaft ring 100 is exposed, which is convenient for installation and removal and allows for direct inspection of the alignment of the "I" shaped notch 110 and the pressure post 3. At the same time, it prevents the bottom of the mounting groove 51 from hitting the end face of the shaft ring 100.

[0039] In this embodiment, the positioning head 31 of the pressure column 3 is adapted to the fixing hole 41 on the fixing plate 4, so as to realize the quick disassembly and assembly of the pressure column 3 and the circumferential anti-rotation, the high repeatability positioning accuracy, and the reduction of changeover adjustment time; further preferably, the length of the positioning head 31 is equal to the thickness of the fixing plate 4, and the diameter of the fixing hole 41 is slightly larger than the diameter of the positioning head 31, so as to avoid interference between the two (such as the positioning hole and the positioning head 31 getting stuck) and facilitate installation.

[0040] In this embodiment, the positioning seat 2 is provided with a receiving groove 21 for installing the pressure column 3. The pressure column 3 can be initially positioned radially by insertion, which reduces the assembly difficulty and avoids breakage and displacement caused by the skewness of the pressure column 3.

[0041] In this embodiment, the shape of the receiving groove 21 is adapted to the shape of the pressure column 3 to eliminate lateral gaps. The pressure column 3 remains vertical when under force, improving the straightness and stability of the fracture process.

[0042] In this embodiment, the length of the receiving groove 21 is adapted to the length of the pressure column 3, and more preferably the length of the receiving groove 21 is equal to the length of the pressure column 3, which provides full-length guidance and limits over-positioning, prevents the pressure column 3 from bending and deforming, and extends the service life of the tooling.

[0043] In this embodiment, the pressure column 3 is a cylinder with an arc-shaped bottom end to ensure uniform load application, causing the shaft ring 100 to break in two at the I-shaped notch 110. The fracture is a natural break, avoiding the problem of pieces falling off after being pressed apart. Further preferably, the inner diameter of the receiving groove 21 is slightly larger than the outer diameter of the pressure column 3, which facilitates disassembly and assembly and makes it convenient to use.

[0044] Of course, the press 1 is fixedly connected to the groove 22 of the positioning seat 2. The groove 22 is preferably a "U" shaped groove. The press 1 and the groove 22 can be fixedly connected by several bolts, which can effectively prevent the tooling from shifting or vibrating when it is crushed, making the tooling more stable and firm, and thus ensuring that the position of the shaft ring 100 fracture is more accurate.

[0045] In addition, the press 1 generally uses a hydraulic pump to convert the hydraulic energy of the hydraulic pump into the vertical linear motion of the pressure column 3, which can ensure precise control of the pressure column 3 and thus achieve precise fracture.

[0046] The working principle of this embodiment is as follows: First, the positioning head 31 of the pressure column 3 is installed in the fixing hole 41 of the fixing plate 4. The fixing plate 4 is fixed to the positioning seat 2 by countersunk screws 42. Then, the positioning seat 2 is connected to the press machine 1. Then, the shaft ring 100 with notch 110 is placed in the support 5 to achieve positioning. Then, the stroke control of the press machine 1 is set to move down to a specified position. After reaching the specified position, it is held for a period of time. The downward pressure load is transmitted to the shaft ring 100 through the pressure column 3 to complete the crushing of the shaft ring 100. Finally, after completion, the press machine 1 moves up to reset according to the preset settings.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing, characterized in that, Comprising: A positioning seat for connecting a press, a pressing column disposed below the positioning seat, a fixing plate connecting the pressing column and the positioning seat, and a support for installing a shaft ring disposed directly below the pressing column, wherein the bottom end of the pressing column is aligned with the notch of the shaft ring and presses downward along the direction of the notch to break the shaft ring.

2. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 1, characterized in that, The shaft ring is adaptively installed in the installation groove of the support and is suspended above the cavity inside the support.

3. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 1, characterized in that, The notch is in the shape of a "one".

4. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 2, characterized in that, The depth of the installation groove is less than the width of the shaft ring.

5. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 1, characterized in that, The positioning head of the pressing column is adaptively installed in the fixing hole on the fixing plate.

6. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 1, characterized in that, A receiving groove for installing the pressing column is provided on the positioning seat.

7. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 6, characterized in that, The outer shape of the receiving groove is adapted to the outer shape of the pressing column.

8. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 6, characterized in that, The length of the receiving groove is adapted to the length of the pressing column.

9. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 8, characterized in that, The pressing column is a cylinder, and its bottom end is arc-shaped.

10. The tooling for breaking apart a split inner ring full complement thrust angular contact ball bearing according to claim 1, characterized in that, The press is fixedly connected to the groove of the positioning seat.

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