A processing tool for milling a ball port of a rib of a self-aligning roller bearing

Abstract

The utility model provides a kind of aligning roller bearing flange milling ball mouth processing frock, it is related to bearing processing manufacturing technical field, including fixed plate, connecting with positioning member and locking member on the fixed plate, the inner periphery of bearing is overlapped on the positioning member, the first end surface of bearing is close to the fixed plate, locking member is pressed in the second end surface of bearing.The utility model by bearing is overlapped on positioning member, and by fixed plate and locking member respectively clamping and fixing the two end surfaces of bearing, so that the outer periphery of bearing can be exposed, so that the processing of flange milling ball mouth can be carried out by operating ordinary milling machine, while the selection of processing equipment is expanded;And only ordinary operator can solve processing problem, personnel who do not use processing center can also process products, and the early cumbersome processing preparation work of processing center is saved.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing and manufacturing technology, and in particular to a tooling for milling the ball end of a self-aligning roller bearing. Background Technology

[0002] The milled spherical notch (also known as a milled spherical groove or spherical notch) on the flange of a self-aligning roller bearing is one of its key design features, primarily used to optimize the bearing's self-aligning performance and rolling element movement. The milled spherical notch is a spherical groove located on the outer circumferential flange, typically a few millimeters deep, depending on the bearing size and roller diameter. Its width covers the range of motion at the roller end, ensuring the roller does not disengage from the guide during deflection.

[0003] Because the milling of the ball end of the self-aligning roller bearing requires machining on the outer circumferential surface, and the machining position is special, the existing milling of the ball end of the self-aligning roller bearing is basically done by machining center, which limits the selection of equipment; in addition, the preparation work before machining center is more extensive, and the cumbersome preparation work also limits the processing group, thus restricting the processing.

[0004] Existing patented technologies include tooling for bearing machining, such as Chinese patent CN219189376U, authorized on June 16, 2023. This is a machining bracket for bearing housings, using two mounting columns to support the bearing housing and a curved pressure plate for clamping and fixing. However, this type of existing patented technology cannot be applied to milling the ball joint of bearing flanges. This is because milling the ball joint requires machining a spherical groove on the outer circumference of the bearing, and in this type of existing patented technology, the outer circumference of the bearing is pressed down by the curved pressure plate, making it impossible to machine the spherical groove.

[0005] Therefore, there is a need for a tooling that facilitates the milling of the ball joint of the bearing flange, allowing for the selection of more types of processing equipment to process the ball joint, such as a tooling that can be used for processing on a conventional milling machine. Utility Model Content

[0006] The purpose of this utility model is to provide a tooling for milling the ball joint of a self-aligning roller bearing, which can conveniently and simply fix the bearing and can be used to process the ball joint of the ball joint on a conventional milling machine. This utility model provides a milling fixture for the ball end of a self-aligning roller bearing, including a fixed plate, on which a positioning element and a locking element are connected. The inner circumferential surface of the bearing overlaps the positioning element, the first end face of the bearing is pressed against the fixed plate, and the locking element is pressed against the second end face of the bearing.

[0007] Furthermore, the fixing plate includes a back plate and a bottom plate, the back plate being connected to the bottom plate, and the back plate and the bottom plate being connected by a first rib.

[0008] Furthermore, the first end face of the bearing is pressed against the back plate.

[0009] Furthermore, the positioning element includes a positioning plate, which is laterally connected to the back plate, and the two side edges of the positioning plate abut against the inner circumferential surface of the bearing.

[0010] Furthermore, the height of the positioning plate is such that the top of the outer peripheral surface of the bearing is higher than the top of the fixing plate.

[0011] Furthermore, the positioning plate and the back plate are connected by a second rib.

[0012] Furthermore, the locking element includes a locking screw that passes laterally through the inner circumferential surface of the bearing and connects to the back plate.

[0013] Furthermore, the locking component also includes a locking panel, which has a hole for the locking screw to pass through. The end of the locking screw that passes through the locking panel is connected to a locking nut, and the locking panel is pressed against the second end face of the bearing.

[0014] Furthermore, the number of locking screws is at least two, and the locking screws are arranged in a straight line at intervals.

[0015] Furthermore, the holes on the locking panel are elongated, and the locking screws protrude from different positions within the holes.

[0016] The technical solution of this utility model involves attaching the bearing to the positioning component and clamping the two end faces of the bearing with a fixing plate and a locking component, thereby exposing the outer circumferential surface of the bearing. This allows for the processing of the ball joint by operating a conventional milling machine, thus expanding the selection of processing equipment. Furthermore, the processing problem can be solved by ordinary operators, and even those who do not know how to use a machining center can process the product, saving the tedious pre-processing preparation work of a machining center. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the tooling structure of this utility model; Figure 2 This is a schematic diagram of the tooling in use according to this utility model; Explanation of reference numerals in the attached figures: 1-Fixing plate; 11-Back plate; 12-Bottom plate; 121-Fixing hole; 13-First rib; 2-Positioning component; 21-Positioning plate; 22-Second rib plate; 3-Locking component; 31-Locking screw; 32-Locking panel; 321-Hole; 33-Locking nut; 4-Bearing; 41-First end face; 42-Second end face; 43-Spherical inlet; 5-Milling cutter. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] 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", "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 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.

[0021] 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 one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1 like Figures 1-2As shown, this utility model provides a milling fixture for the ball end of a self-aligning roller bearing, including a fixed plate 1, a positioning member 2 and a locking member 3 connected to the fixed plate 1, the inner circumferential surface of the bearing 4 overlapping the positioning member 2, the first end face 41 of the bearing 4 being pressed against the fixed plate 1, and the locking member 3 being pressed against the second end face 42 of the bearing 4.

[0023] Specifically, by attaching the inner circumferential surface of the bearing 4 to the positioning member 2, and by attaching the end face of the bearing 4 close to the fixing plate 1 with the fixing plate 1, and by pressing the end face of the bearing 4 away from the fixing plate 1 with the locking member 3, the bearing 4 can be vertically pressed onto the fixing plate 1 by increasing the locking force of the locking member 3. Since it is a fixing method with both ends, the outer circumferential surface of the bearing 4 is exposed.

[0024] Therefore, this tooling has the following advantages: (1) This tooling can be used to process the ball joint 43 by operating a conventional milling machine, which expands the range of processing equipment for the product; (2) This tooling only requires ordinary operators to solve the processing problem, which expands the processing population, reduces the limitation of manual labor, and reduces the labor cost and equipment cost in the processing process; (3) This tooling eliminates a series of tedious processing preparations such as programming, drawing, and debugging of fixtures in the early stage of machining center, and can enable people who do not know how to use machining center to process products. (4) The products processed by this tooling can ensure that the depth of the ball opening 43 and the size of the ball opening R surface meet the process requirements of the drawing; the size of the tooling can be adjusted according to the product to meet the processing of the ball opening 43 of the flange of all products of this type (with the self-made swivel cutter, it is possible to process ball openings 43 of various radii without changing the milling cutter 5). (5) This tooling has a simple and portable structure, which improves processing efficiency and the continuity of product processing.

[0025] Example 2 The fixing plate 1 includes a back plate 11 and a bottom plate 12. The back plate 11 is connected to the bottom plate 12, and the back plate 11 and the bottom plate 12 are connected by a first rib 13. The first end face 41 of the bearing 4 is pressed against the back plate 11. The positioning member 2 includes a positioning plate 21, which is laterally connected to the back plate 11. The two side edges of the positioning plate 21 abut against the inner circumferential surface of the bearing 4. The height of the positioning plate 21 is such that the top of the outer circumferential surface of the bearing 4 is higher than the top of the fixing plate 1. The positioning plate 21 is connected to the back plate 11 by a second rib 22.

[0026] Specifically, the back plate 11 is connected at right angles to the bottom plate 12 and the positioning plate 21. First ribs 13 are added to the left and right sides of the tooling bottom plate 12 and the back plate 11, and second ribs 22 are added to the left and right sides of the positioning plate 21 and the back plate 11. The stability of the tooling is ensured by tightening the reinforcing ribs, and the product processing is guaranteed not to be affected by tooling deformation.

[0027] Multiple fixing holes 121 (specifically, two spaced openings on each side) can be provided on the base plate 12 for fixing the base plate 12 by means of bolts or hydraulic clamps passing through the fixing holes 121, thereby fixing the position of the entire tooling.

[0028] Place the workpiece on the upper positioning plate 21 and move it inward toward the back plate 11. Use the two sides of the upper positioning plate 21 to freely determine the position of the workpiece, thereby automatically ensuring the processing position. Only normal loading and unloading of the workpiece is required, eliminating the positioning step.

[0029] The height of the positioning plate 21 on the back plate 11 is such that the top of the outer peripheral surface of the bearing 4 is higher than the top of the fixed plate 1, so that when the workpiece is on the positioning plate 21, the back plate 11 will not block the movement path of the milling cutter 5 of the milling machine, and then the edge milling ball 43 is processed.

[0030] Example 3 The locking component 3 includes a locking screw 31, which passes laterally through the inner circumferential surface of the bearing 4 and connects to the back plate 11. The locking component 3 also includes a locking panel 32, which has a hole 321 for the locking screw 31 to pass through. A locking nut 33 is connected to the end of the locking screw 31 that extends through the locking panel 32. The locking panel 32 is pressed against the second end face 42 of the bearing 4. There are at least two locking screws 31, which are arranged in a straight line at intervals. The hole 321 on the locking panel 32 is elongated, and the locking screw 31 exits from different positions within the hole 321.

[0031] Specifically, one end of the locking screw 31 is fixedly connected to the back plate 11, and the other end, which protrudes from the locking panel 32, is threaded. By tightening the nut on the screw, the locking panel 32 is pushed towards the back plate 11, pressing the workpiece between the locking panel 32 and the back plate 11, thus fixing the workpiece. There are at least two locking screws 31. The height of the locking panel 32 can be easily adjusted through the elongated hole 321 on the locking panel 32; and the locking panel 32 can be completely fixed through the two fixing points.

[0032] How this utility model is used: (1) First, process the tooling according to the pattern shown in the figure. Select a plate thickness of 10mm and an M10x300 double-threaded screw.

[0033] (2) Place the tooling on the milling machine and install it (in actual processing, a universal lifting table milling machine is used, model: X6132A, working table width: 320mm; working table length: 1320mm).

[0034] (3) Place the product on the positioning plate 21 so that the inner diameter of the product naturally contacts the two side edges and the lower part is naturally suspended. Then, attach one side of the product to the back plate 11 and use the locking panel 32 to fasten the product (both the back side of the back plate 11 and the side of the locking panel 32 have threads, and both ends are fastened to facilitate the replacement of the screw after the threads are stripped). The locking panel 32 uses a waist-shaped hole 321, and the upper and lower positions of the locking panel 32 can be adjusted according to the product size to securely fix the product to the back plate 11.

[0035] (4) Operate the equipment to align it with the center of the machined surface, and adjust the machining dimensions to mill the ball opening 43 on the inner sleeve of the self-aligning roller bearing 4. (The cutting tool used here is a self-made swivel cutter. Since the swivel cutter can be adjusted according to different ball opening R sizes, it is more convenient for the product to be versatile.) (5) The tooling is designed for use with medium and large products. It is not suitable for use with extra-large or small products. However, larger or smaller tooling can be manufactured based on this structure to meet the processing requirements.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tooling for milling the ball end of a self-aligning roller bearing flange, characterized in that, The device includes a fixed plate, on which a positioning element and a locking element are connected. The inner circumferential surface of the bearing overlaps the positioning element, the first end face of the bearing is pressed against the fixed plate, and the locking element is pressed against the second end face of the bearing.

2. The milling fixture for the ball joint of a self-aligning roller bearing according to claim 1, characterized in that, The fixing plate includes a back plate and a bottom plate, the back plate is connected to the bottom plate, and the back plate and the bottom plate are connected by a first rib.

3. The milling fixture for the ball joint of a self-aligning roller bearing according to claim 2, characterized in that, The first end face of the bearing is pressed against the back plate.

4. The milling fixture for the ball joint of a self-aligning roller bearing according to claim 3, characterized in that, The positioning component includes a positioning plate, which is laterally connected to the back plate, and the two side edges of the positioning plate abut against the inner circumferential surface of the bearing.

5. The milling fixture for the ball joint of a self-aligning roller bearing according to claim 4, characterized in that, The height of the positioning plate is such that the top of the outer circumferential surface of the bearing is higher than the top of the fixing plate.

6. The milling fixture for the ball end of a self-aligning roller bearing according to claim 5, characterized in that, The positioning plate and the back plate are connected by a second rib.

7. The milling fixture for the ball joint of a self-aligning roller bearing according to claim 2, characterized in that, The locking component includes a locking screw, which passes laterally through the inner circumferential surface of the bearing and connects to the back plate.

8. The milling fixture for the ball joint of a self-aligning roller bearing according to claim 7, characterized in that, The locking component also includes a locking panel, which has a hole for the locking screw to pass through. The end of the locking screw that passes through the locking panel is connected to a locking nut, and the locking panel is pressed against the second end face of the bearing.

9. The milling fixture for the ball end of a self-aligning roller bearing according to claim 8, characterized in that, The number of locking screws is at least two, and the locking screws are arranged in a straight line at intervals.

10. The milling fixture for the ball joint of a self-aligning roller bearing according to claim 9, characterized in that, The holes on the locking panel are elongated, and the locking screws protrude from different positions within the holes.

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