Bearing dustproof cover stamping die capable of preventing bearing outer ring from deforming
By designing a bearing dust cover stamping mold that utilizes cavity and limit rods, the problem of deformation of the bearing outer ring during dust cover pressing is solved, the stability of the shape and size of the bearing outer ring is achieved, and the efficiency of dust cover installation is improved.
Patent Information
- Application Number
- CN202421526709.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-29
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-06-29
AI Technical Summary
The prior art is difficult to effectively prevent the bearing outer ring from deforming during the dust cover pressing process, resulting in the bearing quality, stability and service life being affected.
A bearing dust-proof cover stamping die is designed. Using a cavity fitting to the outer ring of the bearing and a limit rod fitting to the inner ring of the bearing. When the hydraulic cylinder is extended, the limit rod supports the inner ring of the bearing by rising the support disc and the base, ensuring that the dust-proof cover is uniformly squeezed to both sides of the bearing, thereby stabilizing the shape and size of the outer ring of the bearing.
Through the design of this mold, it can effectively prevent deformation of the outer ring of the bearing, ensure the quality and service life of the bearing, and improve the efficiency and accuracy of dust cover installation.
Smart Images
Figure CN222970752U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hardware, and particularly to a stamping die for a bearing dust cover for preventing the deformation of the outer ring of a bearing. Background Technique
[0002] As is well known, dust cover sealing is a common sealing structure for bearings, which can effectively extend the service life of bearings working in harsh environments or high-temperature conditions. Nowadays, the international technical route is to pursue lightweight design, resulting in an increasing demand for thin-walled bearings with dust cover sealing in the bearing market. At present, the dust cover pressing technology for such bearings is to press one side first, then turn over and press the second side. At the same time, the thin-walled bearings are more deformed after pressing. In the long run, it will cause the deformation of the outer ring of the bearing, specifically:
[0003] 1. After the dust cover is pressed, the outer ring of the bearing is extruded and expanded, resulting in an increase in size;
[0004] 2. After the dust cover is pressed, the outer ring of the bearing is deformed under the force in the direction of the two dust covers, making its shape change into an oval shape;
[0005] The above changes in the structure and size of the outer ring of the bearing all affect the quality of the bearing, as well as its use stability and service life. In addition, single-sided pressing has the defects of low efficiency and a high risk of missing installation on the other side.
[0006] At present, in the field of bearing dust cover pressing technology, the main focus is on solving the problem of pressing deformation of the dust cover. For the pressing deformation of the outer ring of the bearing, no effective solution has been proposed. Mostly, after the bearing dust cover is pressed, a full inspection process for appearance and size is added, which increases the processing cost of the enterprise and also has a certain impact on the service life and accuracy grade of the bearing. Content of the Utility Model
[0007] In order to make up for the above deficiencies, the utility model provides a stamping die for a bearing dust cover for preventing the deformation of the outer ring of a bearing.
[0008] The utility model is realized as follows:
[0009] A stamping die for a bearing dust cover to prevent deformation of the outer ring of the bearing, comprising a connecting cover, a lower die base, an upper die base, and a pair of hydraulic cylinders. The connecting cover includes a limiting seat which has a cavity. A support ring is installed in the cavity. A bearing is supported on the top of the support ring. A first dust cover is provided on the top of the bearing, and the outer ring of the bearing fits with the cavity. The lower die base includes a base which has a sliding cavity. A support plate is slidably connected in the sliding cavity. A limiting rod is installed on the top of the support plate. The inner ring of the bearing fits with the limiting rod. A second dust cover is sleeved on the outer side of the limiting rod. The upper die base includes a top seat. A limiting groove is formed at the bottom of the top seat. The limiting rod slides in the limiting groove. The telescopic ends of the pair of hydraulic cylinders are respectively connected to the support plate and the top seat.
[0010] The beneficial effect of adopting the above further scheme is that by using the cavity that fits with the outer ring of the bearing and the limiting rod that fits with the inner ring of the bearing, when the hydraulic cylinder extends, first, the support plate drives the base to rise, so that the limiting rod supports the inner ring of the bearing. Then, the second dust cover is squeezed to the bottom of the bearing. Subsequently, the top seat moves down. First, the limiting rod slides into the limiting groove, and then the first dust cover is squeezed to the top of the bearing, thereby ensuring the formation and dimensional stability of the outer ring of the bearing, and at the same time, the stamping of the dust covers on both sides of the bearing can be completed at one time to improve the efficiency of installing the dust covers.
[0011] Further, a limiting ring connected to the top of the support plate is installed on the outer side of the limiting rod, and the limiting ring fits with the inner ring wall of the second dust cover.
[0012] Further, the top of the support plate is lower than the top of the base, and the outer wall of the second dust cover fits with the inner wall of the base.
[0013] Further, the height of the limiting ring is less than the height of the second dust cover, and the distance between the top of the base and the top of the support plate is less than the height of the second dust cover.
[0014] The beneficial effect of adopting the above further scheme is that by limiting the size of the limiting ring and the distance between the top of the base and the top of the support plate, the second dust cover can be restricted between the limiting ring and the base, and when the support plate and the base rise, the position of the second dust cover can be prevented from shifting.
[0015] Further, a through hole connected to the sliding cavity is formed at the bottom of the base. The telescopic end of the hydraulic cylinder passes through the through hole, and a spring is connected between the bottom of the support plate and the bottom of the sliding cavity.
[0016] The beneficial effect of adopting the above further solution is that by using the spring, when the hydraulic cylinder rises, the support plate and the base will rise together first. When the base abuts against the support ring, the support plate will rise alone, thereby squeezing the second dust cover into the bottom of the bearing to increase the area where the second dust cover is squeezed into the bearing.
[0017] Further, a support cover is installed on the outer side of the limit seat, and the lower die base slides in the support cover.
[0018] The beneficial effect of adopting the above further solution is that the support cover is fixed on the workbench to fix the mold.
[0019] Further, the thickness of the support ring is less than the thickness of the outer ring of the bearing.
[0020] The beneficial effect of adopting the above further solution is that the support ring will not affect the installation of the second dust cover.
[0021] The beneficial effect of the present utility model is as follows: A bearing dust cover stamping die for preventing the deformation of the outer ring of the bearing obtained by the above design of the present utility model utilizes the cavity that fits with the outer ring of the bearing and the use of the limiting rod that fits with the inner ring of the bearing. When the hydraulic cylinder extends, first the support plate drives the base to rise, so that the limiting rod supports the inner ring of the bearing. Then the second dust cover is squeezed to the bottom of the bearing. Subsequently, the top seat moves down. First, the limiting rod slides into the limiting groove, and then the first dust cover is squeezed to the top of the bearing, thereby ensuring the formation and dimensional stability of the outer ring of the bearing. At the same time, the stamping of the dust covers on both sides of the bearing can be completed at one time to improve the efficiency of installing the dust covers. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0023] Figure 1 It is a three-dimensional structure diagram of a first bearing dust cover stamping die for preventing the deformation of the outer ring of the bearing provided by the present utility model;
[0024] Figure 2 It is a first exploded structure diagram of a bearing dust cover stamping die for preventing the deformation of the outer ring of the bearing provided by the present utility model;
[0025] Figure 3 It is a second exploded structure diagram of a bearing dust cover stamping die for preventing the deformation of the outer ring of the bearing provided by the present utility model;
[0026] Figure 4 This is the second three-dimensional structural schematic diagram of a bearing dust cover stamping die for preventing the deformation of the outer ring of a bearing provided by the present utility model.
[0027] In the figure: 100, connecting cover; 1001, limiting seat; 1002, support cover; 1003, cavity; 1004, support ring; 1005, bearing; 1006, first dust cover; 200, lower die base; 2001, base; 2002, through hole; 2003, sliding cavity; 2004, support disk; 2005, limiting ring; 2006, limiting rod; 2007, second dust cover; 300, upper die base; 3001, top seat; 3002, limiting groove; 400, hydraulic cylinder. Specific embodiments
[0028] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0029] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0030] Embodiment 1 of a bearing dust cover stamping die for preventing the deformation of the outer ring of a bearing according to the present utility model
[0031] The present utility model provides the following technical solutions: As Figure 1 - Figure 4, including a connecting cover 100, a lower die base 200, an upper die base 300, and a pair of hydraulic cylinders 400. The connecting cover 100 includes a limit seat 1001 which has a cavity 1003. A support ring 1004 is installed in the cavity 1003. A bearing 1005 is supported on the top of the support ring 1004. A first dust cover 1006 is provided on the top of the bearing 1005, and the outer ring of the bearing 1005 fits with the cavity 1003. The lower die base 200 includes a base 2001 which has a sliding cavity 2003. A support disk 2004 is slidably connected in the sliding cavity 2003. A limit rod 2006 is installed on the top of the support disk 2004. The inner ring of the bearing 1005 fits with the limit rod 2006. A second dust cover 2007 is sleeved on the outer side of the limit rod 2006. The upper die base 300 includes a top seat 3001. A limit groove 3002 is opened at the bottom of the top seat 3001. The limit rod 2006 slides in the limit groove 3002. The telescopic ends of the pair of hydraulic cylinders 400 are respectively connected to the support disk 2004 and the top seat 3001. By using the cavity 1003 that fits with the outer ring of the bearing 1005 and the limit rod 2006 that fits with the inner ring of the bearing 1005, when the hydraulic cylinder 400 extends, first, the support disk 2004 drives the base 2001 to rise, so that the limit rod 2006 supports the inner ring of the bearing 1005. Then, the second dust cover 2007 is squeezed to the bottom of the bearing 1005. Subsequently, the top seat 3001 moves down. First, the limit rod 2006 slides into the limit groove 3002, and then the first dust cover 1006 is squeezed to the top of the bearing 1005, thereby ensuring the stability of the formation and size of the outer ring of the bearing 1005. At the same time, the stamping of the dust covers on both sides of the bearing 1005 can be completed at one time to improve the efficiency of installing the dust covers.
[0032] Embodiment 2 of a bearing dust cover stamping die for preventing deformation of the outer ring of a bearing according to the present utility model
[0033] Refer to Figure 1 - Figure 4 , specifically, a limit ring 2005 connected to the top of the support disk 2004 is installed on the outer side of the limit rod 2006. The limit ring 2005 fits with the inner ring wall of the second dust cover 2007. The top of the support disk 2004 is lower than the top of the base 2001. The outer wall of the second dust cover 2007 fits with the inner wall of the base 2001. The height of the limit ring 2005 is less than the height of the second dust cover 2007. The distance between the top of the base 2001 and the top of the support disk 2004 is less than the height of the second dust cover 2007. By limiting the size of the limit ring 2005 and the distance between the top of the base 2001 and the top of the support disk 2004, the second dust cover 2007 can be restricted between the limit ring 2005 and the base 2001. When the support disk 2004 and the base 2001 rise, the position of the second dust cover 2007 can be prevented from shifting.
[0034] Embodiment 3 of a stamping die for a bearing dust cover that prevents deformation of the outer ring of a bearing according to the present utility model
[0035] Referring to Figure 1 - Figure 4 Specifically, a through hole 2002 connected to the sliding cavity 2003 is provided at the bottom of the base 2001. The telescopic end of the hydraulic cylinder 400 passes through the through hole 2002. A spring is connected between the bottom of the support plate 2004 and the bottom of the sliding cavity 2003. By using the spring, when the hydraulic cylinder 400 rises, the support plate 2004 and the base 2001 will rise together first. When the base 2001 abuts against the support ring 1004, the support plate 2004 will rise alone, thereby squeezing the second dust cover 2007 into the bottom of the bearing 1005 to increase the area where the second dust cover 2007 is squeezed into the bearing 1005.
[0036] Specifically, the working principle of this stamping die for a bearing dust cover that prevents deformation of the outer ring of a bearing: During use, the bearing 1005 is placed in the cavity 1003, and at this time it is supported by the support ring 1004. The first dust cover 1006 is placed on the top of the bearing 1005, and the second dust cover 2007 is placed between the limit ring 2005 and the base 2001. Subsequently, the hydraulic cylinder 400 is started. When the hydraulic cylinder 400 extends, first the support plate 2004 drives the base 2001 to rise, so that the limit rod 2006 supports the inner ring of the bearing 1005. Then the second dust cover 2007 is squeezed to the bottom of the bearing 1005. Subsequently, the top seat 3001 moves downward. First, the limit rod 2006 slides into the limit groove 3002, and then the first dust cover 1006 is squeezed to the top of the bearing 1005.
[0037] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A stamping die for a bearing dust cover to prevent deformation of a bearing outer ring, characterized in that: The invention comprises a connection cover (100), a lower die seat (200), an upper die seat (300), and a pair of hydraulic cylinders (400). The connection cover (100) comprises a limit seat (1001), the limit seat (1001) has a cavity (1003), a support ring (1004) is installed in the cavity (1003), a bearing (1005) is supported on the top of the support ring (1004), a first dust cover (1006) is provided on the top of the bearing (1005), and the outer ring of the bearing (1005) is in contact with the cavity (1003). The lower die seat (200) comprises a base (2001), and the base (2001) has a sliding cavity (2 003), a support plate (2004) is slidably connected in the sliding cavity (2003), a limit rod (2006) is installed on the top of the support plate (2004), the inner ring of the bearing (1005) is in contact with the limit rod (2006), the outer side of the limit rod (2006) is sleeved with a second dust cover (2007), the upper mold base (300) includes a top seat (3001), a limit groove (3002) is provided at the bottom of the top seat (3001), the limit rod (2006) slides in the limit groove (3002), and the telescopic ends of a pair of hydraulic cylinders (400) are respectively connected to the support plate (2004) and the top seat (3001).
2. A stamping die for a bearing dust cover for preventing deformation of a bearing outer ring according to claim 1, characterized in that: A limiting ring (2005) connected to the top of the supporting plate (2004) is installed on the outer side of the limiting rod (2006), and the limiting ring (2005) is in contact with the inner wall of the second dust cover (2007).
3. The stamping die for a bearing dust cover for preventing deformation of a bearing outer ring according to claim 2, characterized in that: The top of the support plate (2004) is lower than the top of the base (2001), and the outer wall of the second dust cover (2007) is in contact with the inner wall of the base (2001).
4. The stamping die for a bearing dust cover for preventing deformation of a bearing outer ring according to claim 3 is characterized in that: The height of the limiting ring (2005) is smaller than the height of the second dust cover (2007), and the distance between the top of the base (2001) and the top of the support plate (2004) is smaller than the height of the second dust cover (2007).
5. A stamping die for a bearing dust cover for preventing deformation of a bearing outer ring according to claim 4, characterized in that: A through hole (2002) connected to the sliding cavity (2003) is provided at the bottom of the base (2001), the telescopic end of the hydraulic cylinder (400) passes through the through hole (2002), and a spring is connected between the bottom of the support plate (2004) and the bottom of the sliding cavity (2003).
6. The stamping die for a bearing dust cover for preventing deformation of a bearing outer ring according to claim 1, characterized in that: A support cover (1002) is installed on the outer side of the limiting seat (1001), and the lower mold seat (200) slides in the support cover (1002).
7. The stamping die for a bearing dust cover for preventing deformation of a bearing outer ring according to claim 1, characterized in that: The thickness of the support ring (1004) is smaller than the thickness of the outer ring of the bearing (1005).