A punching device for forming a bearing cage

Abstract

The present invention provides a punching device for forming a bearing retainer, which belongs to the field of mechanical technology. A punching device for forming a bearing retainer includes a frame, a first push rod motor is fixed on the frame, a lifting column is fixed on the push rod of the first push rod motor, the lifting column is slidably connected to the frame, a first drive motor is fixed on the top of the lifting column, a cylindrical rotating table is fixed on the output shaft of the first drive motor, a limiting frame is fixed on the lifting column, an annular limiting groove and a punching groove are provided on the circumferential surface of the rotating table, the rotating table is provided with a discharge hole connected to the punching groove, and an elastic support component for fixing the bearing retainer blank is provided in the limiting groove.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology, in particular to a punching device for forming a bearing retainer. Background Art

[0002] A cage (also called a bearing retainer) refers to a bearing part that partially wraps all or part of the rolling elements and moves with them. It is used to isolate the rolling elements and usually guide the rolling elements and keep them in the bearing.

[0003] Cages are generally processed by die casting or plastic casting. The die casting method requires the raw materials to be melted and poured into the die casting mold of the die casting machine to die cast the cage in one step. The casting gate is turned on the lathe, but when die casting aluminum alloy cages, large-tonnage equipment is required, and the mold design and manufacturing are complex. The cage pockets are easily damaged during die casting.

[0004] The plastic casting method is to place vacuum-dried granular engineering plastics in a barrel, heat them with a resistance wire to melt them into a semi-liquid state, and then pressurize them with a plunger or a moving screw to inject the semi-liquid raw materials from the nozzle into the forming mold of the injection molding machine. After heat preservation and cooling, the required cage is obtained. However, due to the shortcomings of the plastic itself, such as thermal deformation, aging and brittle cracking, as well as some problems in the cage structure and injection molding process, the application of plastic casting cages is limited. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems in the prior art and to propose a punching device for forming a bearing cage, which has the characteristics of high processing efficiency of the bearing cage and simple processing equipment.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein the first and the second driving mechanisms are configured to be coordinated with each other to form a circle, and the circle, wherein the first and the second driving mechanisms are configured to be coordinated with each other to form a circle.

[0008] In the above-mentioned stamping device for forming a bearing retainer, the elastic support assembly includes a compression spring and a mortgage sheet, the mortgage sheet is connected to the limiting groove through the compression spring, and a portion of the mortgage sheet extends out of the limiting groove.

[0009] In the above-mentioned punching device for forming a bearing retainer, the upper outer side of the mortgage plate has an inclined guide surface.

[0010] In the above-mentioned stamping device for forming a bearing retainer, the punching and edge pressing device includes a plurality of punching and edge pressing components, and the punching and edge pressing components are circumferentially arranged along the central axis of the rotating table. The punching and edge pressing components include a first hydraulic cylinder, a first movable frame and a stamping component. The first hydraulic cylinder is fixed on the frame, and the first movable frame is fixed on the piston rod of the first hydraulic cylinder. The stamping component is fixed on the first movable frame and the stamping component can enter the stamping groove. The upper and lower ends of the first movable frame are provided with extrusion components, and the extrusion component can extrude and bend the reinforcing edge on the bearing retainer toward the center of the rotating table.

[0011] In the above-mentioned punching device for forming a bearing retainer, an extrusion roller is rotatably provided at the end of the extrusion component.

[0012] In the above-mentioned stamping device for forming a bearing retainer, the disengagement device includes a plurality of driving components, and the driving components include a second push rod motor and a bracket. The second push rod motor is fixed on the frame, and the bracket is fixed on the push rod of the second push rod motor. The bracket has a first limit rod and a second limit rod. The first limit rod can extend into the interval between adjacent reinforced edges on the upper part of the bearing retainer, and the second limit rod can extend into the interval between adjacent reinforced edges on the lower part of the bearing retainer.

[0013] In the above-mentioned stamping device for forming a bearing retainer, the first limiting rod is rotatably connected to the bracket, and a first torsion spring is provided at the hinge between the first limiting rod and the bracket.

[0014] In the above-mentioned stamping device for forming a bearing retainer, the second limiting rod is rotatably connected to the bracket, and a second torsion spring is provided at the hinge between the second limiting rod and the bracket.

[0015] In the above-mentioned stamping device for forming a bearing retainer, the ends of the first limiting rod and the second limiting rod have arc-shaped surfaces.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] In the present invention, the bearing retainer can be quickly formed, and compared with the traditional die-casting method or plastic casting method, it has faster processing efficiency, less equipment, and can greatly reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention.

[0019] Figure 2 It is a cross-sectional view of the rotating table in the present invention.

[0020] Figure 3 It is a cross-sectional view of the punching groove of the rotating table in the present invention.

[0021] Figure 4 yes Figure 1 Enlarged view of point A in the middle.

[0022] Figure 5 yes Figure 1 Enlarged view of point B in the middle.

[0023] Figure 6 yes Figure 1 Enlarged view of point C in the middle.

[0024] Figure 7 is a schematic diagram of a bearing retainer.

[0025] In the figure, 2, frame; 3, first push rod motor; 4, lifting column; 5, first driving motor; 6, rotating table; 61, limit slot; 62, punching slot; 63, discharge hole; 64, slide; 7, limit frame; 8, compression spring; 9, mortgage sheet; 91, guide surface; 10, punching and edge pressing assembly; 101, first hydraulic cylinder; 102, first moving frame; 1021, extrusion component; 103, punching component; 11, extrusion roller; 12, second push rod motor; 13, bracket; 14, first limit rod; 15, second limit rod; 16, arc surface; a, main body; a1, reinforcement edge; a2, through hole. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figures 1 to 7 As shown, the bearing retainer includes a main body a, reinforcement edges a1 arranged on the upper and lower sides of the main body a, adjacent reinforcement edges a1 are spaced equidistantly apart, and a through hole a2 for accommodating balls is arranged on the circumferential surface of the main body a.

[0028] A stamping device for forming a bearing retainer comprises a frame 2, a first push rod motor 3 is fixed on the frame 2, a lifting column 4 is fixed on the push rod of the first push rod motor 3, the lifting column 4 is slidably connected to the frame 2, a first driving motor 5 is fixed on the top of the lifting column 4, a cylindrical rotating table 6 is fixed on the output shaft of the first driving motor 5, a limiting frame 7 is fixed on the lifting column 4, a limiting groove 61 and a stamping groove 62 are provided on the circumferential surface of the rotating table 6, the rotating table 6 is provided with a discharge hole 63 connected to the stamping groove 62, an elastic support component for fixing a bearing retainer blank is provided in the limiting groove 61, a punching and pressing device for punching holes and pressing a reinforcing edge a1 of the bearing retainer blank is provided on the frame 2, a plurality of slide grooves 64 for the reinforcing edge a1 to pass through are provided on the circumferential surface of the rotating table 6; a detachment device for detaching the formed bearing retainer from the rotating table 6 is provided on the frame 2.

[0029] In the present invention, the bearing retainer blank is sleeved on the rotating table 6 and limited by the elastic support assembly on the rotating table 6. Then, the reinforcing edge a1 at the lower part of the bearing retainer is supported on the limiting frame 7. Then, the lifting column 4 is driven to rise by the first push rod motor 3, and the rotating table 6 is driven to move upward. Then, the circumferential direction of the bearing retainer blank is punched with holes by the punching and pressing device, and the reinforcing edges a1 on the upper and lower sides of the bearing retainer blank are squeezed and bent. Finally, the first drive motor 5 cooperates with the disengagement device to move the reinforcing edge a1 on the bearing retainer into the corresponding slide groove 64, and then the bearing retainer can be taken out from the rotating table 6.

[0030] In the present invention, the bearing retainer can be quickly formed, and compared with the traditional die-casting method or plastic casting method, it has faster processing efficiency, less equipment, and can greatly reduce costs.

[0031] Specifically, the elastic support assembly includes a compression spring 8 and a mortgage sheet 9. The mortgage sheet 9 is connected to the limiting groove 61 through the compression spring 8, and a portion of the mortgage sheet 9 extends out of the limiting groove 61. After the blank of the bearing cage is sleeved on the rotating table 6, the bearing cage is abutted and limited by the pressing sheet.

[0032] Specifically, the upper outer portion of the mortgage sheet 9 has an inclined guide surface 91, which can facilitate the insertion of the type bearing retainer. When inserted, the type bearing retainer is sleeved from top to bottom.

[0033] Specifically, the punching and edge pressing device includes a plurality of punching and edge pressing components 10, which are circumferentially arranged along the central axis of the rotating table 6. The punching and edge pressing components 10 include a first hydraulic cylinder 101, a first movable frame 102 and a stamping component 103. The first hydraulic cylinder 101 is fixed on the frame 2, the first movable frame 102 is fixed on the piston rod of the first hydraulic cylinder 101, the stamping component 103 is fixed on the first movable frame 102 and the stamping component 103 can enter the stamping groove 62, and the upper and lower ends of the first movable frame 102 are provided with extrusion components 1021, which can extrude and bend the reinforcing edge a1 on the bearing retainer toward the center direction of the rotating table 6.

[0034] When the rotating table 6 rises to the punching and pressing device, the punching and pressing device is started, and the first hydraulic cylinder 101 drives the first movable frame 102 to move toward the center of the rotating table 6. The blank of the bearing retainer is punched by the punching component 103, and then the bearing retainer is punched by the extrusion component 1021, and the punched waste is discharged from the discharge hole 63.

[0035] Specifically, a pressing roller 11 is rotatably provided at the end of the pressing member 1021. The pressing roller 11 can prevent the reinforcing sheet from being scratched when the reinforcing sheet is pressed.

[0036] Specifically, the disengagement device includes a plurality of driving components, including a second push rod motor 12 and a bracket 13. The second push rod motor 12 is fixed on the frame 2, and the bracket 13 is fixed on the push rod of the second push rod motor 12. The bracket 13 has a first limiting rod 14 and a second limiting rod 15. The first limiting rod 14 can extend into the interval between the adjacent reinforcing edges a1 of the upper part of the bearing retainer, and the second limiting rod 15 can extend into the interval between the adjacent reinforcing edges a1 of the lower part of the bearing retainer. When the rotating table 6 rises to the disengagement device, the disengagement device is started, and the second push rod motor 12 drives the limiting member to move toward the center of the rotating table 6, so that the first limiting rod 14 is inserted into the interval between the adjacent reinforcing edges a1 of the upper part of the bearing retainer, and the second limiting rod 15 is inserted into the interval between the adjacent reinforcing edges a1 of the lower part of the bearing retainer.

[0037] Specifically, the first limiting rod 14 is rotatably connected to the bracket 13, and a first torsion spring is provided at the hinge between the first limiting rod 14 and the bracket 13. When the first limiting rod 14 contacts the reinforcing sheet on the upper part of the bearing retainer, the first limiting rod 14 swings upward to avoid damage to the bearing retainer, and when the rotating table 6 is rotated, the first limiting rod 14 moves, and the first torsion spring enables the first limiting rod 14 to be inserted into the interval between the adjacent reinforcing edges a1 on the upper part of the bearing retainer.

[0038] Specifically, the second limiting rod 15 is rotatably connected to the bracket 13, and a second torsion spring is provided at the hinge between the second limiting rod 15 and the bracket 13. When the second limiting rod 15 contacts the reinforcing sheet at the lower part of the bearing retainer, the second limiting rod 15 swings downward to avoid damage to the bearing retainer, and when the rotating table 6 is rotated, the second limiting rod 15 moves, and the second torsion spring enables the second limiting rod 15 to be inserted into the interval between the adjacent reinforcing edges a1 at the lower part of the bearing retainer.

[0039] Specifically, the ends of the first limiting rod 14 and the second limiting rod 15 have an arc surface 16. When the first limiting rod 14 and the second limiting rod 15 are pressed on the reinforcing sheet, the direction can be automatically adjusted to avoid damage to the bearing retainer.

[0040] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A stamping device for forming a bearing retainer, comprising a frame (2), characterized in that: A first push rod motor (3) is fixed on the frame (2), a lifting column (4) is fixed on the push rod of the first push rod motor (3), the lifting column (4) is slidably connected to the frame (2), a first drive motor (5) is fixed on the top of the lifting column (4), a cylindrical rotating table (6) is fixed on the output shaft of the first drive motor (5), a limiting frame (7) is fixed on the lifting column (4), an annular limiting groove (61) and a punching groove (62) are provided on the circumferential surface of the rotating table (6), and the rotating The table (6) is provided with a discharge hole (63) connected to the punching groove (62); the limit groove (61) is provided with an elastic support component for fixing the bearing retainer blank; the frame (2) is provided with a punching and pressing device for punching holes in the bearing retainer blank and pressing the reinforcing edge (a1); the circumferential surface of the rotating table (6) is provided with a plurality of slide grooves (64) for the reinforcing edge (a1) to pass through; the frame (2) is provided with a detaching device for detaching the formed bearing retainer from the rotating table (6); The elastic support assembly comprises a compression spring (8) and a mortgage sheet (9), the mortgage sheet (9) being connected to the limiting groove (61) via the compression spring (8), and a portion of the mortgage sheet (9) extending out of the limiting groove (61); The punching and edge pressing device comprises a plurality of punching and edge pressing components (10), wherein the punching and edge pressing components (10) are arranged circumferentially along the central axis of the rotating table (6), and the punching and edge pressing components (10) comprise a first hydraulic cylinder (101), a first movable frame (102) and a punching component (103), wherein the first hydraulic cylinder (101) is fixed on the frame (2), the first movable frame (102) is fixed on the piston rod of the first hydraulic cylinder (101), the punching component (103) is fixed on the first movable frame (102) and the punching component (103) can enter the punching groove (62), and the upper and lower ends of the first movable frame (102) are provided with extrusion components (1021), and the extrusion component (1021) can extrusion and bend the reinforcing edge (a1) on the bearing retainer toward the center direction of the rotating table (6).

2. The punching device for forming a bearing retainer according to claim 1, characterized in that: The upper outer portion of the mortgage sheet (9) has an inclined guide surface (91).

3. The punching device for forming a bearing retainer according to claim 2, characterized in that: An extrusion roller (11) is rotatably provided at the end of the extrusion component (1021).

4. The punching device for forming a bearing retainer according to claim 1, characterized in that: The disengagement device comprises a plurality of driving components, wherein the driving components comprise a second push rod motor (12) and a bracket (13); the second push rod motor (12) is fixed on the frame (2); the bracket (13) is fixed on the push rod of the second push rod motor (12); the bracket (13) comprises a first limiting rod (14) and a second limiting rod (15); the first limiting rod (14) can extend into the interval between adjacent reinforcing edges (a1) at the upper part of the bearing retainer; and the second limiting rod (15) can extend into the interval between adjacent reinforcing edges (a1) at the lower part of the bearing retainer.

5. The punching device for forming a bearing retainer according to claim 4, characterized in that: The first limiting rod (14) is rotatably connected to the bracket (13), and a first torsion spring is provided at a hinge between the first limiting rod (14) and the bracket (13).

6. The punching device for forming a bearing retainer according to claim 4, characterized in that: The second limiting rod (15) is rotatably connected to the bracket (13), and a second torsion spring is provided at a hinge between the second limiting rod (15) and the bracket (13).

7. The punching device for forming a bearing retainer according to claim 4, characterized in that: The ends of the first limiting rod (14) and the second limiting rod (15) have arc-shaped surfaces (16).

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