Punching die and machining die for deep groove ball bearing retainer
By designing the punching mold of the deep groove ball bearing cage, punching and defiling the cage using the punching upper die, lower die and defiling plate, the problem of difficulty in effectively punching in the existing technology is solved, and the problem of realizing the Efficient lubrication and extend bearing life.
Patent Information
- Application Number
- CN202421243164.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The prior art is difficult to effectively punch the deep groove ball bearing cage, which affects the lubrication effect and the performance of the bearing.
A punching mold for deep groove ball bearing cage is designed, including punching upper die, punching lower die and punching deduplication plate. The punching is punched against the cage and the elastic parts are used to deduplicate to ensure that Shape stability.
It realizes efficient punching of deep groove ball bearing cages, ensures the circulation of lubricating oil, extends the service life of the bearing, and reduces processing costs.
Smart Images
Figure CN222511262U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing processing, in particular to a punching die and a processing die for a deep groove ball bearing retainer. Background Art
[0002] Bearing is an important component in modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient of the mechanical rotating body during movement, and ensure the rotation accuracy of the mechanical rotating body.
[0003] A bearing generally consists of four parts: an inner ring, an outer ring, rolling elements and a cage. The inner ring cooperates with the shaft and rotates with the shaft; the outer ring cooperates with the bearing seat and plays a supporting role; the rolling elements are evenly distributed between the inner and outer rings with the help of the cage, and their shape, size and number directly affect the performance and life of the rolling bearing; the cage, also known as the bearing cage or 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, enable the rolling elements to be evenly distributed along the circumference of the bearing and keep the rolling elements in the bearing, and usually guides the rolling elements to rotate for lubrication.
[0004] The shapes of the cages of different types of bearings may be different. For example, the cage used for deep groove ball bearings is generally called a wave-shaped cage, that is, the cage has protrusions (or grooves) to form the ball pockets of the rolling elements, and the cage usually has through holes, through which lubricating oil or grease can flow freely to achieve a good lubrication effect, and can connect the two cages so that the ball pockets of the two cages are relatively formed to form a complete ball pocket.
[0005] Therefore, how to provide a punching die for a deep groove ball bearing cage to punch the deep groove ball bearing cage is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0006] In view of this, the utility model provides a punching die for a deep groove ball bearing cage to punch holes in the deep groove ball bearing cage. In addition, the utility model also provides a processing die having the punching die for the deep groove ball bearing cage.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A punching die for a deep groove ball bearing cage, comprising:
[0009] A punching upper die, wherein the punching upper die is provided with a punching needle, and the punching needle can punch holes in the retainer;
[0010] A punching lower die, wherein the punching upper die can move relative to the punching lower die, and the punching lower die has a first positioning hole corresponding to the punching needle, and the punching needle can be inserted into the first positioning hole;
[0011] A punching stripper plate, one end of which is connected to the punching upper die, the punching needle can pass through the punching stripper plate, and the side of the punching stripper plate close to the punching lower die is provided with an avoidance groove for avoiding the ball pocket of the retaining frame, and an elastic part for stripping is arranged in the avoidance groove.
[0012] Preferably, in the punching die of the deep groove ball bearing retainer, the punching needle is detachably mounted on the punching upper die, and there are multiple punching needles, which are evenly arranged along the circumference of the punching upper die;
[0013] And / or, the elastic member is a spring.
[0014] Preferably, in the above-mentioned punching die of the deep groove ball bearing retainer, the punching stripper plate is connected to the punching upper die via a guide column, and the punching stripper plate can be lifted and moved along the guide column.
[0015] Preferably, in the punching die of the above-mentioned deep groove ball bearing retainer, the punch needle is a rotating body structure with a diameter that decreases along the axial direction, the end of the punch needle with a larger diameter is detachably fixedly connected to the punching upper die, and the end with a smaller diameter passes through the punching stripping plate.
[0016] Preferably, in the punching die of the above-mentioned deep groove ball bearing retainer, the punching stripping plate has a through hole for the punch needle to pass through, the diameter of the through hole is larger than the diameter of the smaller end of the punch needle, and the through hole and the avoidance groove are arranged alternately.
[0017] Preferably, in the punching die of the deep groove ball bearing cage, the punching needle is a stepped cylindrical structure;
[0018] Alternatively, the punch needle is a cone with a gradually decreasing diameter.
[0019] Preferably, in the above-mentioned punching die for the deep groove ball bearing cage, the punching lower die comprises:
[0020] The punching recessed template has the first positioning hole and a second positioning hole, the second positioning hole corresponds to the guide column, and the guide column can be inserted into the second positioning hole.
[0021] Preferably, in the above-mentioned punching die for the deep groove ball bearing cage, the punching lower die further comprises:
[0022] A punching seat, one side of which is detachably connected to the punching groove plate, and the other side of which is detachably connected to the lower template of the machine tool.
[0023] Preferably, in the above-mentioned punching die of the deep groove ball bearing retainer, the punching seat and the punching recessed die plate are connected by a positioning column;
[0024] And / or, the punching upper die is detachably mounted on the upper die plate of the machine tool via a punching upper die base;
[0025] And / or, the punching seat is detachably mounted on the lower template of the machine tool via a punching lower die seat.
[0026] A processing die for a deep groove ball bearing cage comprises a forming die, a shaping die and a punching die for the deep groove ball bearing cage integrated on the same machine tool, wherein the punching die is the punching die for the deep groove ball bearing cage described in any one of the above items.
[0027] The utility model discloses a punching die for a deep groove ball bearing retainer, wherein an upper punching die and a lower punching die are provided, and a punching needle is provided on the upper punching die. During the process of punching the lower punching die by the upper punching die, the retainer is punched. A punching stripper plate is provided between the upper punching die and the lower punching die, and the punching needle passes through the punching stripper plate. The avoidance groove of the punching stripper plate is opposite to the ball pocket of the retainer to ensure the shape stability of the retainer during the punching process. The retainer is stripped by an elastic member to complete the entire punching process. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0029] Figure 1 It is a schematic structural diagram of a deep groove ball bearing retainer disclosed in an embodiment of the utility model;
[0030] Figure 2 It is a structural schematic diagram of a processing mold for a deep groove ball bearing cage disclosed in an embodiment of the utility model;
[0031] Figure 3 This is a disassembled diagram of a punching die for a deep groove ball bearing cage disclosed in an embodiment of the utility model;
[0032] Figure 4It is a front view of a punching die for a deep groove ball bearing cage disclosed in an embodiment of the utility model;
[0033] Figure 5 for Figure 4 Sectional view in the AA direction;
[0034] Figure 6 It is a schematic diagram of the structure of the punching upper die disclosed in the embodiment of the utility model;
[0035] Figure 7 This is a disassembled diagram of the punching upper die disclosed in the embodiment of the utility model;
[0036] Figure 8 It is a structural schematic diagram of the punching lower die disclosed in the embodiment of the utility model;
[0037] Fig. 9 This is a disassembled diagram of the punching lower die disclosed in the embodiment of the utility model. DETAILED DESCRIPTION
[0038] The utility model discloses a punching die for a deep groove ball bearing cage, so as to realize punching of the deep groove ball bearing cage. In addition, the utility model also discloses a processing die having the punching die for the deep groove ball bearing cage.
[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0040] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.
[0041] A bearing generally consists of four parts: an inner ring, an outer ring, rolling elements and a cage. The inner ring cooperates with the shaft and rotates with the shaft; the outer ring cooperates with the bearing seat and plays a supporting role; the rolling elements are evenly distributed between the inner and outer rings with the help of the cage, and their shape, size and number directly affect the performance and life of the rolling bearing; the cage, also known as the bearing cage or 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, enable the rolling elements to be evenly distributed along the circumference of the bearing and keep the rolling elements in the bearing, and usually guides the rolling elements to rotate for lubrication.
[0042] The shape of the cage of different types of bearings may vary, such as Figure 1 As shown, the cage used for deep groove ball bearings is generally called a wave cage, that is, the cage has protrusions (or grooves) to form ball pockets 101 for rolling bodies, and the cage 100 usually has through holes 102, through which lubricating oil or grease can flow freely to achieve a good lubrication effect.
[0043] Combination Figure 2 As shown, the present application discloses a shaping die for a deep groove ball bearing cage, comprising a forming die 2 , a shaping die 3 and a punching die 4 .
[0044] Among them, the forming mold 2 is used to process the ball pocket 101 on the retaining frame 100 to be processed; the shaping mold 3 is used to shape the ball pocket 101 of the retaining frame 100 processed by the forming mold 2; and the punching mold 4 is used to punch the retaining frame 100 after being shaped by the shaping mold 3.
[0045] The forming die 2, shaping die 3 and punching die 4 in the present application are integrated on the same machine tool, and the same machine tool can be used to simultaneously perform forming, shaping and punching processes on different retaining frames, thereby improving processing efficiency while reducing the use of machine tools, which is beneficial to reducing costs.
[0046] Combination Figures 3 to 9 As shown, the punching die of the deep groove ball bearing retainer in the present application includes: a punching upper die 42 , a punching needle 43 , a punching lower die 45 and a punching stripper plate 44 .
[0047] The punching upper die 42 is provided with a punching needle 43, and the punching needle 43 punches the retainer during the lifting and lowering movement of the punching upper die 42 relative to the punching lower die 45. The punching lower die 45 has a first positioning hole 4512 corresponding to the punching needle 43, and the punching needle 43 can be inserted into the first positioning hole 4512. One end of the punching stripper plate 44 is connected to the punching upper die 42, and the punching needle 43 can pass through the punching stripper plate 44. The punching stripper plate 44 has an avoidance groove 441 on one side close to the punching lower die 45 for avoiding the ball pocket of the retainer.
[0048] In the process of punching the retainer, the punching upper die 42 moves toward the punching lower die 45, and the retainer is located between the punching upper die 42 and the punching lower die 45. The punching needle 43 can pass through the punching stripper plate 44 and extend into the first positioning hole 4512 after passing through the retainer, that is, the punching needle 43 is positioned by the first positioning hole 4512 while preventing the punching needle 43 from bending. Since the retainer to be punched is wavy, it can be understood as having a protrusion (or groove). In order to prevent the retainer from being flattened during the bonding process between the punching upper die 42 and the punching lower die 45, a punching stripper plate 44 is provided between the punching upper die 42 and the punching lower die 45, and the punching stripper plate 44 has an avoidance groove 441 on the side close to the retainer, and the avoidance groove 441 is opposite to the ball pocket position of the retainer, so that during the punching process, the avoidance groove 441 is covered at the ball pocket position to avoid flattening the retainer and affecting the shape of the retainer. An elastic member 442 is provided in the avoidance groove 441. During the stamping process, the ball pocket of the retaining frame is located in the avoidance groove 441 and squeezes the elastic member 442. When the punching is completed, the punching stripper plate 44 moves along with the punching upper die 42 in a direction away from the punching lower die 45. Under the resetting action, the elastic member 442 pushes the ball pocket of the retaining frame, thereby separating the retaining frame from the punching stripper plate 44 and completing the punching.
[0049] In the present application, a punching upper die 42 and a punching lower die 45 are set, and a punch needle 43 is set on the punching upper die 42. During the process of punching the punching lower die 45 by using the punching upper die 42, the retaining frame is punched. A punching stripper plate 44 is set between the punching upper die 42 and the punching lower die 45, and the punch needle 43 passes through the punching stripper plate 44. The avoidance groove 441 of the punching stripper plate 44 is opposite to the ball pocket of the retaining frame to ensure the shape stability of the retaining frame during the punching process, and the retaining frame is stripped by the elastic member 442 to complete the entire punching process.
[0050] In some embodiments, the punching needle 43 is detachably mounted on the punching die 42, the punching die 42 has a first connection hole 421, the punching needle 43 is connected to the first connection hole 421, and there are multiple punching needles 43, which are evenly arranged along the circumference of the punching die 42. The number and position of the punching needles 43 can be set according to the number and position of holes to be punched in the retainer. Optionally, the punching needle 43 is connected to the punching die 42 by snapping or by fitting through an assembly hole.
[0051] Since the punching needle 43 is a wearing part, the punching needle 43 is detachably mounted on the punching upper die 42, which can facilitate the replacement of the punching needle 43 and reduce the processing cost.
[0052] In some embodiments, the elastic member 442 is a spring. Using a spring as the elastic member has a large elastic force and low cost. Specifically, one end of the spring is fixedly connected to the bottom of the avoidance groove 441. Since the interaction force between the two is not large after the retaining frame is inserted into the avoidance groove 441 during the punching process, a spring with a smaller size can be selected. The number and installation position of the springs can be set according to different needs. In an optional embodiment, a plurality of springs can be set in the avoidance groove 441. Of course, the springs can also be set only in part of the avoidance groove 441. It should be noted that the springs are evenly arranged along the circumference of the punching stripping plate 44.
[0053] The shape and size of the avoidance groove 441 can be set according to the shape and size of the ball pocket, and are not specifically limited here.
[0054] In some embodiments, the punching stripper plate 44 is connected to the punching upper die 42 via a guide column (not shown in the figure), and the punching stripper plate 44 can be lifted and lowered along the guide column. Specifically, the guide column is fixedly connected to the punching upper die 42, including but not limited to the use of screws or clamping and other connection methods, and the punching upper die 42 has a second connection hole 422 for the guide column to connect. The punching stripper plate 44 has an assembly hole 444, and the guide column passes through the assembly hole 444. Optionally, the diameter of the assembly hole 444 is slightly larger than the diameter of the guide column to ensure that the punching stripper plate 44 can move along the guide column. The guide column has a limit plate at one end away from the punching upper die 42, and the limit plate is used to limit the punching stripper plate 44 on the guide column to prevent the punching stripper plate 44 from separating from the guide column.
[0055] The guide posts in the present application include but are not limited to three, and are evenly distributed along the circumference of the punching stripper plate 44 .
[0056] like Figure 7 As shown, the punching needle 43 in the present application is a rotating body structure with a reduced diameter along the axial direction, and the end with a larger diameter of the punching needle 43 is detachably fixedly connected to the punching upper die 42, and the end with a smaller diameter passes through the punching stripper plate 44. By setting the position of the punching needle 43 for punching to have a smaller diameter and the other end to have a larger diameter, the strength of the punching needle 43 is improved while meeting the punching size requirements, which is conducive to alleviating the problem of the punching needle 43 breaking during the punching process.
[0057] The diameter of the larger end of the punching needle 43 can be set according to different needs, while the diameter of the smaller end needs to be set according to the diameter requirement of the through hole of the retaining frame, and both are within the protection range.
[0058] In an optional embodiment, the punch needle 43 is a stepped cylindrical structure; or, the punch needle 43 is a cone with a gradually decreasing diameter. The specific shape and size of the punch needle 43 can be set according to different needs and are all within the protection range.
[0059] The punching stripper plate 44 has a through hole 443 for the punching needle 43 to pass through, the diameter of the through hole 443 is larger than the diameter of the smaller end of the punching needle 43, and the through hole 443 and the avoidance groove 441 are arranged alternately. The diameter of the through hole 443 is smaller than the through hole 443 to ensure that the punching needle 43 can pass through the punching stripper plate 44.
[0060] During the punching process, the punching upper die 42 moves toward the punching lower die 45. Since the punching stripper plate 44 is connected to the punching upper die 42, the punching stripper plate 44 moves synchronously with the punching upper die 42. When the punching stripper plate 44 contacts the punching lower die 45, the avoidance groove 441 is opposite to the ball pocket of the retaining frame and is covered on the outside of the ball pocket. The ball pocket squeezes the spring to compress the spring; the punching upper die 42 continues to press downward, and the punching stripper plate 44 moves relative to the guide column. Move until the punch needle 43 passes through the punching stripper plate 44 and punches a through hole on the retaining frame, and the punch needle 43 is inserted into the first positioning hole 4542; in the process of the punching upper die 42 moving away from the punching lower die 45, the punch needle 43 is gradually driven to separate from the retaining frame. When the limit plate and the stamping stripper plate 44 are against each other, the stamping stripper plate 44 moves with the punching upper die 42, and under the action of the spring restoring force, it pushes the retaining frame to separate the retaining frame from the stamping stripper plate 44.
[0061] In the above process, in order to prevent the influence of the guide column on the retaining frame, in some embodiments, a second positioning hole is provided on the punching lower die 45. For details, see Figure 8 and Fig. 9 As shown, the punching lower die 45 includes: a punching concave die plate 451 and a punching seat 452.
[0062] The punching die plate 451 has a first positioning hole 4512 and a second positioning hole 4511, the second positioning hole 4511 corresponds to the guide column, the guide column can be inserted into the second positioning hole, the first positioning hole 4512 is opposite to the punching needle 43, and the punching needle 43 can be inserted into the first positioning hole 4512. Optionally, the first positioning hole 4512 and the punching needle 43 are arranged in a one-to-one correspondence.
[0063] One side of the punching seat 452 is detachably connected to the punching groove plate 451, and the other side of the punching seat 452 is detachably connected to the lower template 12 of the machine tool. Since the punching lower die 45 is a consumable part, the punching lower die 45 is divided into a detachably connected punching groove plate 451 and a punching seat 452, and only the punching groove plate 451 can be replaced, thereby reducing the processing cost.
[0064] In some embodiments, the punching seat 452 has a first mounting hole 4521, and the punching groove plate 451 has a second mounting hole 4513, and the first mounting hole 4521 and the second mounting hole 4513 can be connected by a positioning column. Exemplarily, the punching seat 452 and the punching groove plate 451 are both cylindrical structures, the axis of the first mounting hole 4521 coincides with the axis of the punching seat 452, and the axis of the second mounting hole 4513 coincides with the axis of the punching groove plate 451.
[0065] The punching upper die 42 in the present application is detachably mounted on the upper die plate 11 of the machine tool through the punching upper die holder 41; and / or, the punching holder 452 is detachably mounted on the lower die plate 12 of the machine tool through the punching lower die holder 46. The punching upper die holder 41 and the punching lower die holder 46 include but are not limited to stepped cylindrical structures.
[0066] In addition, the present application also discloses a processing mold for a deep groove ball bearing retainer, including a punching mold for a deep groove ball bearing retainer, wherein the punching mold for the deep groove ball bearing retainer is the punching mold for the deep groove ball bearing retainer disclosed in the above-mentioned embodiment. Therefore, the processing mold for the deep groove ball bearing retainer having the punching mold for the deep groove ball bearing retainer also has all the above-mentioned technical effects, which will not be repeated here one by one.
[0067] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0068] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A punching die for a deep groove ball bearing cage, characterized in that: include: A punching upper die, wherein the punching upper die is provided with a punching needle, and the punching needle can punch holes in the retainer; A punching lower die, wherein the punching upper die can move relative to the punching lower die, and the punching lower die has a first positioning hole corresponding to the punching needle, and the punching needle can be inserted into the first positioning hole; A punching stripper plate, one end of which is connected to the punching upper die, the punching needle can pass through the punching stripper plate, and the side of the punching stripper plate close to the punching lower die is provided with an avoidance groove for avoiding the ball pocket of the retaining frame, and an elastic part for stripping is arranged in the avoidance groove.
2. The punching die for the deep groove ball bearing cage according to claim 1, characterized in that: The punching needle is detachably mounted on the punching upper die, and there are multiple punching needles, which are evenly arranged along the circumference of the punching upper die; And / or, the elastic member is a spring.
3. The punching die for the deep groove ball bearing cage according to claim 2, characterized in that: The punching stripper plate is connected to the punching upper die through a guide column, and the punching stripper plate can be lifted and moved along the guide column.
4. The punching die for the deep groove ball bearing cage according to claim 3, characterized in that: The punching needle is a rotating body structure with a diameter that decreases along the axial direction. The end of the punching needle with a larger diameter is detachably fixedly connected to the punching upper die, and the end with a smaller diameter passes through the punching stripping plate.
5. The punching die for the deep groove ball bearing cage according to claim 4, characterized in that: The punching stripping plate has a through hole for the punch needle to pass through, the diameter of the through hole is larger than the diameter of the smaller end of the punch needle, and the through hole and the avoidance groove are arranged alternately.
6. The punching die for the deep groove ball bearing cage according to any one of claims 1 to 5, characterized in that: The punch needle is a stepped cylindrical structure; Alternatively, the punch needle is a cone with a gradually decreasing diameter.
7. The punching die for the deep groove ball bearing cage according to any one of claims 3 to 5, characterized in that: The punching lower die comprises: The punching recessed template has the first positioning hole and a second positioning hole, the second positioning hole corresponds to the guide column, and the guide column can be inserted into the second positioning hole.
8. The punching die for the deep groove ball bearing cage according to claim 7, characterized in that: The punching lower die also includes: A punching seat, one side of which is detachably connected to the punching groove plate, and the other side of which is detachably connected to the lower template of the machine tool.
9. The punching die for the deep groove ball bearing cage according to claim 8, characterized in that: The punching seat and the punching recessed template are connected in a limited position via a positioning column; And / or, the punching upper die is detachably mounted on the upper die plate of the machine tool via a punching upper die base; And / or, the punching seat is detachably mounted on the lower template of the machine tool via a punching lower die seat.
10. A processing mold for a deep groove ball bearing cage, characterized in that: It comprises a forming die, a shaping die and a punching die of a deep groove ball bearing cage integrated on the same machine tool, wherein the punching die is the punching die of the deep groove ball bearing cage as claimed in any one of claims 1 to 9.