CN201735694U - Bearing outer ring die - Google Patents
Bearing outer ring die Download PDFInfo
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- CN201735694U CN201735694U CN2010202692220U CN201020269222U CN201735694U CN 201735694 U CN201735694 U CN 201735694U CN 2010202692220 U CN2010202692220 U CN 2010202692220U CN 201020269222 U CN201020269222 U CN 201020269222U CN 201735694 U CN201735694 U CN 201735694U
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- bearing outer
- outer ring
- die cavity
- ring mould
- divided
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Abstract
The utility model discloses a bearing outer ring die and relates to a bearing outer ring die adopted in the preparation method of a universal joint bearing outer ring. The bearing outer ring die is realized by the following technical scheme: the bearing outer ring die is divided into at least two layers; each layer of the bearing outer ring die is provided with a division cavity; each division cavity has the same shape; along the punching direction, the minimum size of an upper division cavity is larger than the minimum size of a lower division cavity; and the central axes of the division cavities at all layers coincide. The bearing outer ring die is used for preparing the universal joint bearing outer ring by means of punching, thus effectively ensuring the concentricity of products.
Description
Technical field
The utility model relates to the bearing outer ring mould that adopts among the preparation method of cardan axis bearing outer-ring.
Background technology
The method that punching press prepares the cardan axis bearing outer-ring has higher stock utilization.
Yet in the prior art, the method that punching press prepares the cardan axis bearing outer-ring only is suitable for small dimension cardan axis bearing outer-ring, the bearing outer ring mould that adopts in its preparation process as shown in Figure 7, raw material only just is shaped through once leading in die cavity 1, therefore, when the cardan axis bearing outer-ring of big specification prepared during the bearing outer ring mould of this kind structure was applied to, be difficult to guarantee the concentricity of product.
Therefore, the preparation method of the cardan axis bearing outer-ring of big specification adopts hot forging method more in existing, it as China Patent No. 200810061801.3 invention disclosed " manufacturing process of bearing ring ", its technology of taking is as follows: comprise bar, forge hot, annealing, turning processing, heat treatment and grinding successively, yet utilize its stock utilization of this kind technical scheme low, often only have about 40%, and the bearing outer ring bearing capacity that makes is low, the phenomenon that the bearing outer ring opening splits and takes off the end usually occurs.
The utility model content
The purpose of this utility model provides a kind of bearing outer ring mould, use this kind bearing outer ring mould and prepare the universal bearing outer ring with impact style, can guarantee the concentricity of product effectively, solved in the background technology when using in the impact style preparation big specification cardan axis bearing outer-ring, be difficult to guarantee the deficiency of product concentricity.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: the bearing outer ring mould, this bearing outer ring mould is divided into two-layer at least, each layer all has the branch die cavity, each divides the shape of die cavity identical, along pressing direction, last one minute, the minimum dimension of die cavity divided the minimum dimension of die cavity big than next, and the axis of every layer branch die cavity overlaps.
All divide die cavity to form a die cavity; Because along pressing direction, last one minute, the minimum dimension of die cavity divided the minimum dimension of die cavity big than next, therefore, the die cavity of this bearing outer ring is stepped.
As of the present utility model preferred, this bearing outer ring mould is divided into three layers.
As of the present utility model preferred, each divides die cavity to be provided with guide section, active section, vertical section and cross and answer breeze way successively along impact style; Along pressing direction, the size of the vertical section of last one minute of die cavity is divided between the full-size and minimum dimension of die cavity guide section at next.
Bowl-shape blank in the process of being stamped at least through twice guiding, thereby guaranteed the concentricity of product; The assurance of concentricity helps cooperating between this product and other parts, increases it and is being used life-span in the process with other parts; Guide section mainly is the position of proofreading and correct bowl-shape blank, to guarantee the concentricity of final products; Active section mainly is the limit wall of the bowl-shape blank of stretching, makes its attenuation, to advance vertical section; Crossing and answering breeze way mainly is to discharge the overstress that bowl-shape blank produces when being stamped, with in the minimizing punching course to the impact of bearing outer ring mould; Active section also has the effect of guiding at this, further guarantees the concentricity of product.
As of the present utility model preferred, this bearing outer ring mould is divided into external mold and internal mold, and described die cavity is located in the internal mold, and described external mold surrounds internal mold, interference fit between external mold and the internal mold.
As of the present utility model preferred, it is characterized in that the material of described external mold is a carbon steel, the material of described internal mold is a wolfram steel.
It is as follows with the method for preparing bearing outer ring that above-mentioned bearing outer ring mould is applied to the fluid pressure type punch press: it may further comprise the steps successively:
(1) blanking: the bowl-shape blank that the round pie raw material is made by punch press;
(2) phosphatization: bowl-shape blank is carried out phosphatization handle;
(3) ironing: will utilize the stepped bearing outer ring mould of die cavity on the fluid pressure type punch press, to strike out thick finished product through the bowl-shape blank that step (2) phosphatization obtains;
(4) car limit: thick finished product is carried out turning processing, control the height of thick finished product limit wall;
(5) bottom treatment: utilize the fluid pressure type punch press that the thick finished product that obtains through step (4) is carried out twice bottoming at least;
(6) car limit once more: the edge of opening to the thick finished product that obtains through step (5) carries out the car limit;
(7) heat treatment: in mesh bag stove or continuous oven, thick finished product is heat-treated;
(8) shaping and scurry light.
In sum, the utlity model has following beneficial effect:
1, the interface between layer and the layer is for dividing the interface between the die cavity; Described stepped being meant along pressing direction, last one minute, the size of die cavity divided the size of die cavity big than next; Because it is two-layer that this bearing mould is divided at least, and die cavity is stepped, therefore, bowl-shape blank in the process of being stamped at least through twice guiding, thereby guaranteed the concentricity of product; The assurance of concentricity helps cooperating between this product and other parts; And the cardan axis bearing outer-ring in use is in the high speed rotating state, if concentricity is not high, this cardan axis bearing outer-ring is easily vibration in use, and then wearing and tearing strengthen, and reduce service life;
2, because this bearing mould is divided into two-layer at least, and die cavity is stepped, and therefore, bowl-shape blank is in the process of being stamped, the thickness of its limit wall and non-once form, but along pressing direction, every through a just corresponding attenuation of branch die cavity, until dividing die cavity to be shaped through last, thereby reduced in the punching course, therefore the expansive force that the bearing outer ring mould is born, has reduced the loss of bearing outer ring mould;
3, the setting of three layers on bearing outer ring mould is in order further to guarantee the concentricity of product;
4, because the pressing equipment that adopts is the fluid pressure type punch press, make the product surface stress distribution even;
5, because in the punching course, internal mold limit wall stressed huge, and easily split, the setting of external mold has then improved the bearing capacity of this bearing outer ring mould effectively;
6, wolfram steel belongs to carbide alloy, is referred to as tungsten-titanium alloy again, and hardness can reach HRB89 to 95, and therefore, this bearing outer ring mould has higher mar proof, has improved the service life of mould;
7, because using the bearing outer ring of the utility model preparation is directly to be stamped to form by step (3) ironing by raw material, therefore, the raceway of this kind bearing outer ring is without any machined, raceway face is compared with the raceway face of the bearing outer ring that adopts background technology to make, organize fine and close more, and the surface exists compression, thereby, the wearing and tearing and the fatigue life of this kind bearing outer ring have been improved greatly, also therefore, the experiment proved that, under the identical situation of specification, adopt the bearing capacity of the bearing outer ring of the described method preparation of " utility model content " part to increase by 20%, the phenomenon of effectively having avoided opening to split and take off the end than the bearing outer ring that adopts hot forging method preparation in the background technology at least;
8, the bearing outer ring of application the utility model preparation is directly to be stamped to form by step (3) ironing by raw material, does not need heats forged and machined, and therefore, the hot forging method process flow of comparing in the background technology is short, has also obviously reduced energy consumption; In addition, owing to use the escape that the bearing outer ring of the utility model preparation does not produce because of machined, therefore, have good metal and flow to, make the stress distribution of this bearing outer ring more reasonable, also therefore, the limit wall of this bearing outer ring can be thinner than the limit wall of the bearing outer ring that adopts the background technology preparation, and do not need to stay allowance, therefore, raw material availability of the present invention reaches more than 80%, and the thermal forging technology of comparing in the background technology is saved more than 50%.
Description of drawings
Fig. 1 is the schematic diagram of bowl-shape blank in the step among the embodiment (1);
Fig. 2 is the schematic diagram of the thick finished product that obtains through step (3) among the embodiment;
Fig. 3 is the schematic diagram of the thick finished product that obtains through step (4) among the embodiment;
Fig. 4 is the schematic diagram of the thick finished product that obtains through step (5) bottoming for the second time among the embodiment;
Fig. 5 is the schematic diagram of the thick finished product that obtains through step (6) among the embodiment;
Fig. 6 is the cut-away view of the outer ring mould of embodiment middle (center) bearing;
Fig. 7 is the outer ring mould cut-away view of background technology middle (center) bearing.
Among the figure, 1, die cavity, 11, external mold, 12, internal mold, 121, divide die cavity, 1211, guide section, 1212, active section, 1213, vertical section, 1214, cross and answer breeze way.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present utility model.
Embodiment: the preparation method of cardan axis bearing outer-ring, it may further comprise the steps successively:
(1) blanking: with the bowl-shape blank that the round pie raw material makes by mechanical punch, bowl-shape blank as shown in Figure 1, as seen its opening, bottom surface and limit wall all have the out-of-flatness part;
(2) phosphatization: make bowl-shape blank surface obtain the water-fast phosphate film of one deck;
(3) ironing: will utilize the stepped bearing outer ring mould of die cavity on the fluid pressure type punch press, to strike out thick finished product through the bowl-shape blank that step (2) phosphatization obtains, this thick finished product as shown in Figure 2, Qi Bianbi and bottom surface bowl-shape blank more shown in Figure 1 is smooth, but still out-of-flatness of opening part;
(4) car limit: thick finished product is carried out turning processing, control the height of thick finished product limit wall, the height of limit wall is control rationally, too highly may cause in the operation that feels secure together down, squeezing broken bottoming mould, too weak point then can make the specification of product not be inconsistent requirement, the thick finished product of Che Bianhou as shown in Figure 3, opening part is also smooth;
(5) bottoming: utilize the fluid pressure type punch press that the thick finished product that obtains through step (4) is carried out twice bottoming at least, the radian of the bottom edge of the thick finished product that the fluid pressure type of bottoming employing for the first time punch press will obtain through step (4) car limit is repaired; Bottoming for the second time adopts the fluid pressure type punch press to repair the bottom surface of the thick finished product of the bottoming first time, makes the bottom surface inwardly recessed, and the thick finished product after the bottoming as shown in Figure 4 for the second time; Also can feel secure for the third time again so that the product precision is higher.
(6) car limit once more: the edge of opening of the thick finished product that obtains through step (5) is carried out flange handle, it mainly is in order to meet the technological requirement of product that flange is handled, and the thick finished product after flange is handled as shown in Figure 5;
(7) heat treatment: in mesh bag stove or continuous oven, thick finished product is heat-treated;
(8) shaping and scurry light.
The bearing outer ring mould that adopts in step (3) ironing, as shown in Figure 6, be divided into external mold 11 and internal mold 12, described die cavity is located in the internal mold 12, and described external mold 11 surrounds internal mold 12, interference fit between external mold 11 and the internal mold 12, and along pressing direction, this bearing outer ring mould is divided into three layers, and each layer all has a branch die cavity 121, and each divides die cavity 121 to be provided with guide section 1211, active section 1212, vertical section 1213 and cross and answer breeze way 1214 successively along pressing direction.
Each divides the shape of die cavity 121 identical, and along pressing direction, last one minute, die cavity 121 minimum dimension divided the minimum dimension of die cavity 121 big than next, promptly go up one fen die cavity 121 vertically the size of section 1213 divide the vertically size of section 1213 of die cavity 121 greater than next, and last one minute die cavity 121 vertically the size of section 1213 divide between the full-size and minimum dimension of die cavity 121 guide sections 1211 at next.
The axis of every layer branch die cavity 121 overlaps.
The material of external mold 11 is a carbon steel, and the material of internal mold 12 is a wolfram steel.
The raw material that present embodiment adopts is the low-carbon alloy steel steel plate, is particularly suitable for preparing the cardan axis bearing outer-ring of big-and-middle specification, and for example, diameter is greater than the cardan axis bearing outer-ring more than the 24mm.
Claims (5)
1. the bearing outer ring mould is characterized in that, this bearing outer ring mould is divided into two-layer at least, each layer all has the branch die cavity, and each divides the shape of die cavity identical, along pressing direction, last one minute, the minimum dimension of die cavity divided the minimum dimension of die cavity big than next, and the axis of every layer branch die cavity overlaps.
2. bearing outer ring mould according to claim 1 is characterized in that, this bearing outer ring mould is divided into three layers.
3. bearing outer ring mould according to claim 2 is characterized in that, each divides die cavity to be provided with guide section, active section, vertical section successively and to answer breeze way excessively along impact style; Along pressing direction, the size of the vertical section of last one minute of die cavity is divided between the full-size and minimum dimension of die cavity guide section at next.
4. bearing outer ring mould according to claim 3 is characterized in that, this bearing outer ring mould is divided into external mold and internal mold, and described die cavity is located in the internal mold, and described external mold surrounds internal mold, interference fit between external mold and the internal mold.
5. bearing outer ring mould according to claim 4 is characterized in that, the material of described external mold is a carbon steel, and the material of described internal mold is a wolfram steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202692220U CN201735694U (en) | 2010-07-23 | 2010-07-23 | Bearing outer ring die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202692220U CN201735694U (en) | 2010-07-23 | 2010-07-23 | Bearing outer ring die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735694U true CN201735694U (en) | 2011-02-09 |
Family
ID=43550976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202692220U Expired - Lifetime CN201735694U (en) | 2010-07-23 | 2010-07-23 | Bearing outer ring die |
Country Status (1)
| Country | Link |
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| CN (1) | CN201735694U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920434A (en) * | 2010-07-23 | 2010-12-22 | 湖州欧亚轴承配件厂 | Method for preparing universal joint bearing outer ring and bearing outer ring mold adopted by method |
| CN106216527A (en) * | 2016-10-13 | 2016-12-14 | 江苏钱达能源科技有限公司 | A kind of once-combined mould |
| CN106424339A (en) * | 2016-10-13 | 2017-02-22 | 江苏钱达能源科技有限公司 | Secondary composite die |
| CN113305234A (en) * | 2021-04-29 | 2021-08-27 | 杭州临安培富机车部件有限公司 | Method for finishing circle for producing sliding bearing bush |
-
2010
- 2010-07-23 CN CN2010202692220U patent/CN201735694U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920434A (en) * | 2010-07-23 | 2010-12-22 | 湖州欧亚轴承配件厂 | Method for preparing universal joint bearing outer ring and bearing outer ring mold adopted by method |
| CN106216527A (en) * | 2016-10-13 | 2016-12-14 | 江苏钱达能源科技有限公司 | A kind of once-combined mould |
| CN106424339A (en) * | 2016-10-13 | 2017-02-22 | 江苏钱达能源科技有限公司 | Secondary composite die |
| CN113305234A (en) * | 2021-04-29 | 2021-08-27 | 杭州临安培富机车部件有限公司 | Method for finishing circle for producing sliding bearing bush |
| CN113305234B (en) * | 2021-04-29 | 2023-01-17 | 杭州临安培富机车部件有限公司 | Method for finishing circle for producing sliding bearing bush |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
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| CX01 | Expiry of patent term |