CN109737145B - Tool and method for assembling miniature double-row bearing - Google Patents
Tool and method for assembling miniature double-row bearing Download PDFInfo
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- CN109737145B CN109737145B CN201811584143.6A CN201811584143A CN109737145B CN 109737145 B CN109737145 B CN 109737145B CN 201811584143 A CN201811584143 A CN 201811584143A CN 109737145 B CN109737145 B CN 109737145B
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Abstract
The invention discloses a tool for assembling a miniature double-row bearing and an assembling method, wherein the tool comprises an outer positioning column and an inner positioning column which is sleeved in the outer positioning column and can move relative to the outer positioning column; the upper parts of the outer positioning column and the inner positioning column are respectively provided with a positioning groove and a positioning step for placing the bottom surfaces of the bearing outer ring and the bearing inner ring to be flush; one side of the outer positioning column is provided with a positioning bolt for determining the coaxial position of the inner positioning column and a pushing assembly for translating the inner positioning column, and the opposite side is provided with a mandril for pushing the inner positioning column to a normal position; an arc-shaped first supporting block is fixed on the upper cylinder; the outer positioning column and the inner positioning column are provided with fan-shaped grooves at opposite positions, the fan-shaped grooves are internally provided with driving shafts which take a pin shaft in the middle of the inner positioning column as a center and drive the second supporting block to rotate, and the first supporting block is flush with the supporting surface of the second supporting block. The rapid assembly of the miniature double-row bearing can be realized by using the assembly tool, the whole assembly period of the miniature double-row bearing is obviously shortened, and the production efficiency is obviously improved.
Description
Technical Field
The invention relates to the technical field of bearing assembly, in particular to a tool for assembling a miniature double-row bearing and an assembling method.
Background
The miniature double-row bearing has the advantages of improving the bearing rigidity and the rotation precision of the bearing, reducing vibration and the like, so that the miniature double-row bearing is widely applied to some mechanism platforms in the fields of aviation, navigation, aerospace and the like. The micro double-row bearing structure is shown in figure 1, a retainer is an inserted non-metal retainer with a lock opening, and the micro double-row bearing is difficult to assemble because the whole size is small and the size of a steel ball is small.
The traditional assembly method of the miniature double-row bearing comprises the steps that firstly, an outer ring is horizontally placed, the outer ring is held by one hand, the other hand uses tweezers to place all steel balls into an outer ring channel, then the inner ring is placed into the outer ring by the tweezers, the steel balls are simultaneously placed into an inner ring channel, the inner ring and the outer ring are clamped by the tweezers at the moment, the inner ring and the outer ring are prevented from being scattered, the whole bearing is rotated to the vertical direction from the horizontal direction, the steel balls are pulled by the other hand by a rod-shaped object with a fine diameter, a plurality of steel balls in the steel balls are far away from other steel balls, the inner ring and the outer ring of the bearing cannot be scattered at the moment, then the steel balls are equally divided. And the other row is processed according to the method to complete the assembly of the whole set of bearing. The method has the following defects: 1. the assembly process of the bearing is manually carried out, and the whole size of the bearing is small, so the assembly process is slow and the production efficiency is low; 2. the double-row bearing needs to be paired, the pairing effect needs to be judged in an auxiliary mode through technical indexes such as friction torque and axial deformation, the double-row bearing needs to be repeatedly disassembled and assembled in the middle, and a large amount of time is consumed.
Since it is very inconvenient to assemble the micro double-row bearing, resulting in an extended assembly period of the micro double-row bearing and a low production efficiency, it is very necessary to assemble the micro double-row bearing using an auxiliary assembly device to improve the assembly efficiency of the double-row bearing.
Disclosure of Invention
In view of the above, the present invention provides a micro double-row bearing assembly tool and an assembly method using the same.
The technical scheme adopted by the invention to solve the technical problems is as follows:
the tool for assembling the miniature double-row bearing comprises an outer positioning column and an inner positioning column which is sleeved inside the outer positioning column and can move relative to the outer positioning column;
the middle part of the outer positioning column is provided with two communicated circular grooves with different diameters, and the upper end surface of the upper circular groove with the smaller diameter is provided with a positioning groove for placing a bearing outer ring; the inner positioning column comprises an upper cylinder and a lower cylinder which are respectively matched and connected with the two circular grooves, the upper part of the upper cylinder is provided with a positioning step for placing a bearing inner ring, and the lower end surface of the positioning step is flush with the bottom surface of the positioning groove; the lower part of the outer positioning column is radially provided with a positioning bolt, and one side of the outer positioning column, which is provided with the positioning bolt, is also provided with a pushing assembly used for pushing the inner positioning column to make the inner positioning column translate; the lower part of the outer positioning column is in threaded connection with a mandril at the other side opposite to the side where the positioning bolt is positioned;
the side wall of the upper cylinder, which is close to the side where the positioning bolt is located, is fixedly connected with an arc-shaped first supporting block which is matched with the radian of the outer peripheral surface of the bearing inner ring and the supporting surface of which is flush with the groove of the bearing inner ring, and the end part of the first supporting block is provided with a first baffle plate for preventing the steel ball from falling; the outer positioning column and the inner positioning column are provided with sector grooves at opposite positions, the center of the inner positioning column is rotatably provided with a pin shaft, a driving shaft capable of rotating in the sector grooves is connected with the pin shaft, a supporting surface fixedly connected with the driving shaft and a second supporting block which is flushed with the supporting surface of the first supporting block and used for placing steel balls are arranged on the second supporting block, and the end part of the second supporting block is provided with a second baffle plate used for preventing the steel balls from falling.
Further, the pushing assembly comprises a supporting rod connected with the outer positioning column, one end of the supporting rod extending to the position between the outer positioning column and the inner positioning column is connected with a spring, one end of the spring is sleeved on the supporting rod, and the other end of the spring is in abutting fit with a lower cylinder of the inner positioning column.
Furthermore, the upper end face of the outer positioning column is an inclined plane which is gradually inclined downwards towards one side of the positioning bolt from the farthest position of the upper circular groove from the first supporting block.
Furthermore, an observation window for observing the position of the free end of the positioning bolt is arranged on the outer positioning column.
The method for assembling the miniature double-row bearing by using the assembly tool mainly comprises the following steps:
(1) and checking the position of the inner positioning column and the outer positioning column when the inner positioning column and the outer positioning column are coaxial by using a standard bearing: defining the number of a row of steel balls in a standard double-row bearing as n, placing a row of steel balls which are assembled in the standard bearing by using a traditional method downwards on a positioning groove of an outer positioning column and a positioning step of an inner positioning column, keeping an inner ring of the bearing to be capable of freely rotating, enabling the outer positioning column to be coaxial with the inner positioning column at the moment, and adjusting two positioning bolts to enable free ends of the positioning bolts to contact the inner positioning column to determine the position of the inner positioning column when the outer positioning column and the inner positioning column are coaxial;
(2) placing a bearing inner ring, a steel ball and a bearing outer ring: taking out the standard bearing, placing an inner ring of the bearing to be assembled on a positioning step of the inner positioning column, screwing out the ejector rod, translating the inner positioning column to one side far away from the positioning bolt under the action of the pushing assembly, enabling a space between the outer positioning column and the inner positioning column to be capable of placing steel balls, and sequentially placing n-1 steel balls on the first supporting block by taking the first baffle as a starting point; taking a second baffle as a starting point, placing the last 1 steel ball on a second supporting block, and then placing the outer ring of the bearing on a positioning groove of an outer positioning column;
(3) and adjusting the position from the last 1 steel ball to the inner ring and the outer ring of the bearing without loose sleeve: adjusting the ejector rod to push the inner positioning column to move to a position contacting with the free end of the positioning bolt; the driving shaft is rotated to drive the second supporting block to rotate, so that the steel balls arranged on the second supporting block move to the position farthest away from the first supporting block, and the inner ring and the outer ring are prevented from being loosened after the bearing is taken out;
(4) assembling a row of steel balls: taking out the bearing, equally dividing the steel balls, and inserting the steel balls into the retainer with the locking notch, thereby completing the assembly of a row of steel balls;
(5) and integrally assembling a bearing: and (5) repeating the steps (1) to (4) to finish the assembly of another row of steel balls, namely the assembly of the miniature double-row bearing.
Has the advantages that:
as described above, the tool for assembling the micro double-row bearing and the assembling method of the invention have the following beneficial effects:
1: this assembly fixture passes through interior reference column and outer reference column with location bearing inner race and bearing outer lane, moves the position of interior reference column through setting up the cooperation of pushing assembly and ejector pin, fixedly connected with is in order to place the bearing with the unanimous first supporting shoe of bearing inner race radian on the interior reference column, through setting up rotatable to the second supporting shoe of farthest position so that the steel ball removes to the position that makes the bearing not loose the cover, overall structure is simple, convenient operation.
2: the rapid assembly of the miniature double-row bearing can be realized by using the assembly tool, and the rapid assembly of the double-row bearing can be realized, so that the whole assembly period of the miniature double-row bearing is obviously shortened, and the production efficiency is obviously improved.
3: in order to realize the rapid assembly of the miniature double-row bearing, the invention uses the supporting rod and the spring, and the spring always compresses the inner positioning column, so that the inner positioning column is always in a position deviated from the coaxial position, and the filling of the steel ball can be ensured.
4: the upper end of the outer positioning column is obliquely arranged downwards, so that the steel ball is exposed outside the outer positioning column during assembly, light is good, and observation is easy.
The present invention will be described in further detail with reference to the drawings and specific examples.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of a miniature double row bearing;
FIG. 2 is a cross-sectional view of the assembly fixture of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a top view of the assembly fixture of the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 3;
FIG. 6 is a schematic diagram of the position relationship between the bearing inner race and the bearing outer race and the first and second support blocks of the present invention;
fig. 7 is a schematic view of the last steel ball moving to the farthest position.
The positioning device comprises a graphic mark 1, a first supporting block 101, a first baffle plate 2, an outer positioning column 3, a positioning bolt 4, a supporting rod 5, a spring 6, an inner positioning column 7, a top rod 8, an outer ring 9, an inner ring 10, a pin shaft 11, a second supporting block 111, a second baffle plate 12 and a driving shaft.
Detailed Description
In the present specification, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial technical changes.
The core of the invention is to provide a micro double-row bearing assembly tool and a method for assembling by using the same, and the device can quickly realize the assembly of a steel ball, a bearing inner ring 9 and a bearing outer ring 8.
Referring to fig. 2 and 3, fig. 2 is a sectional view of the assembly fixture of the present invention; FIG. 3 is a cross-sectional view A-A of FIG. 2;
the assembly tool mainly comprises an outer positioning column 2 and an inner positioning column 6 which is sleeved in the outer positioning column 2 and can move relative to the outer positioning column 2; the middle part of the outer positioning column 2 is provided with two communicated circular grooves with different diameters, and the upper end surface of the upper circular groove with smaller diameter is provided with a positioning groove for placing a bearing outer ring 8; the inner positioning column 6 comprises an upper cylinder and a lower cylinder which are respectively matched and connected with the two circular grooves, the upper part of the upper cylinder is provided with a positioning step for placing the bearing inner ring 9, and the lower end surface of the positioning step is flush with the bottom surface of the positioning groove; the lower part of the outer positioning column 2 is radially provided with a positioning bolt 3, and one side of the outer positioning column 2, which is provided with the positioning bolt 3, is also provided with a pushing assembly for pushing the inner positioning column 6 to make the inner positioning column translate; and a mandril 7 is connected with the lower part of the outer positioning column 2 through threads at the other side opposite to the side where the positioning bolt 3 is positioned.
In order to realize the rapid assembly of the miniature double-row bearing, the invention uses the inner positioning column 6 and the outer positioning column 2, in order to ensure that when the bearing is positioned at the assembly position, the taking and the placing of the bearing outer ring 8 are not interfered with the bearing inner ring 9, the diameter of the positioning groove on the outer positioning column 2 is 0-0.03mm smaller than the inner diameter of the bearing outer ring 8, and the diameter of the upper cylinder of the inner positioning column 6 is 0-0.03mm larger than the outer diameter of the inner ring 9, thus ensuring that the outer ring 8 and the inner ring 9 are not interfered when the quick rotating ejector rod 7 is retracted and placed into the outer ring 8.
Specifically, the positioning bolt 3 arranged at the lower part of the outer positioning column 2 is used for determining the normal position of the inner positioning column 6 after the inner positioning column 6 and the outer positioning column 2 are coaxial, otherwise, the inner ring 9 is not in place, or the inner ring 9 is too over-positioned, any condition occurs, and the last steel ball is rotated with great effort. The positioning bolts 3 are in threaded connection with the outer positioning columns 2, and preferably, the number of the positioning bolts 3 is 2.
Referring to fig. 4 and 6, fig. 4 is a top view of the assembly fixture of the present invention; FIG. 6 is a schematic diagram of the position relationship between the bearing inner race and the bearing outer race and the first and second support blocks according to the present invention.
The side wall of the upper cylinder close to the side where the positioning bolt 3 is located is fixedly connected with an arc-shaped first supporting block 1 which is matched with the radian of the outer peripheral surface of the bearing inner ring 9 and the supporting surface of which is flush with a channel of the bearing inner ring 9, and the end part of the first supporting block 1 is provided with a first baffle 101 for preventing the steel ball from falling; referring to fig. 5, it can be seen from fig. 5 that a sector groove is formed at a position of the outer positioning column 2 opposite to the inner positioning column 6, a pin shaft 10 is rotatably disposed at the center of the inner positioning column 6, a driving shaft 12 capable of rotating in the sector groove is connected to the pin shaft 10, a second supporting block 11 for placing a steel ball is fixedly connected to the driving shaft 12, a supporting surface of the second supporting block is flush with a supporting surface of the first supporting block 1, and a second baffle 111 for preventing the steel ball from falling off is disposed at an end of the second supporting block 11.
The pin shaft 10 has no strict precision requirement, is arranged in a pin hole in the center of the inner positioning column 6, provides a rotation center for moving the last steel ball, and ensures that the rotation process is stable and easy.
Wherein, the ejector rod 7 and the pushing component cooperate to move the inner positioning column 6 to a corresponding position to place or move the steel ball. When the steel ball needs to be assembled, the ejector rod 7 is screwed out, the spring 5 is enabled to compress the inner positioning column 6 all the time, the inner positioning column 6 is enabled to be in a deviated state all the time, and enough space can be guaranteed to enable the steel ball to be placed on the first supporting block 1 and the second supporting block 11. When the last steel ball needs to be moved, the ejector rod 7 is screwed, so that the inner positioning column 6 contacts the free end position of the positioning bolt 3, namely the inner positioning column 6 is coaxial with the outer positioning column 2, and then the second supporting block 11 is driven to move to the farthest position by rotating the driving shaft 12, as shown in fig. 7. It is also not necessary to move the second support block 11 to the position furthest from the first support block 1 each time, but the inner and outer races of the bearing are not easily nested when in the furthest position.
Further, the pushing assembly comprises a supporting rod 4 connected with the outer positioning column 2, one end of the supporting rod 4 extending to the position between the outer positioning column 2 and the inner positioning column 6 is connected with a spring 5, one end of the spring 5 is sleeved on the supporting rod 4, and the other end of the spring is in abutting fit with a lower cylinder of the inner positioning column 6.
Preferably, the upper end of the outer positioning column 2 is obliquely arranged downwards, so that the steel ball is exposed outside the outer positioning column during assembly, light is good, and observation is easy. Practice proves that when the inclination angle of the outer positioning column 2 is 25 degrees, the observation is easy, the steel ball cannot slide, and the effect is best.
Preferably, the outer positioning column 2 is provided with an observation window for observing the position of the free end of the positioning bolt 3, so that an operator can observe whether the positioning bolt 3 is in contact with the inner positioning column 6 at any time.
Optionally, in order to ensure that the steel balls do not fall off in the assembling process, a certain amount of lubricating oil can be dripped on all the steel balls, and a certain adsorption force is ensured among the steel balls.
The method for assembling the miniature double-row bearing by using the assembly tool mainly comprises the following steps:
(1) and checking the position of the inner positioning column and the outer positioning column when the inner positioning column and the outer positioning column are coaxial by using a standard bearing: defining the number of a row of steel balls in a standard double-row bearing as n, placing a row of steel balls which are assembled in the standard bearing by using a traditional method downwards on a positioning groove of an outer positioning column 2 and a positioning step of an inner positioning column 6, keeping an inner ring of the bearing to rotate freely, enabling the outer positioning column 2 to be coaxial with the inner positioning column 6 at the moment, adjusting two positioning bolts 3 to enable free ends of the two positioning bolts to contact the inner positioning column 6 to determine the position of the inner positioning column 6 when the outer positioning column 2 is coaxial with the inner positioning column 6;
(2) placing a bearing inner ring, a steel ball and a bearing outer ring: taking out the standard bearing, placing an inner ring 9 of the bearing to be assembled on a positioning step of the inner positioning column 6, screwing out the ejector rod 7, and translating the inner positioning column 6 to one side far away from the positioning bolt 3 under the action of the pushing component, so that a steel ball can be placed in a space between the inner positioning columns 6 in the outer positioning column 2, and sequentially placing n-1 steel balls on the first supporting block 1 by taking the first baffle plate 101 as a starting point; taking the second baffle plate 111 as a starting point, placing the last 1 steel ball on the second supporting block 11, and then placing the bearing outer ring 8 on the positioning groove of the outer positioning column 2;
(3) and adjusting the position from the last 1 steel ball to the inner ring and the outer ring of the bearing without loose sleeve: adjusting the ejector rod 7 to push the inner positioning column 6 to move to a position contacting with the free end of the positioning bolt 3; the rotating driving shaft 12 drives the second supporting block 11 to rotate so that the steel balls arranged on the second supporting block 11 move to the position farthest from the first supporting block 1 to ensure that the inner ring and the outer ring are not separated after the bearing is taken out;
(4) assembling a row of steel balls: taking out the bearing, equally dividing the steel balls, and inserting the steel balls into the retainer with the locking notch, thereby completing the assembly of a row of steel balls;
(5) and integrally assembling a bearing: and (5) repeating the steps (1) to (4) to finish the assembly of another row of steel balls, namely the assembly of the miniature double-row bearing.
The miniature double-row bearing is assembled by using the assembly tool, so that the operation is simple, the use is convenient, and the assembly efficiency of the double-row bearing is greatly improved.
The tool for assembling the micro double-row bearing and the assembling method provided by the invention are described in detail, and the principle and the specific implementation mode of the invention are explained by applying specific examples, and the examples are only used for helping to understand the method and the core idea of the invention. It should be noted that any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the protective scope of the present invention to those skilled in the art.
Claims (5)
1. Miniature biserial bearing is frock for assembly, its characterized in that: comprises an outer positioning column (2) and an inner positioning column (6) which is sleeved in the outer positioning column (2) and can move relative to the outer positioning column (2);
the middle part of the outer positioning column (2) is provided with two communicated circular grooves with different diameters, and the upper end surface of the upper circular groove with the smaller diameter is provided with a positioning groove for placing a bearing outer ring (8); the inner positioning column (6) comprises an upper cylinder and a lower cylinder which are respectively matched and connected with the two circular grooves, the upper part of the upper cylinder is provided with a positioning step for placing a bearing inner ring (9), and the lower end surface of the positioning step is flush with the bottom surface of the positioning groove; the lower part of the outer positioning column (2) is radially provided with a positioning bolt (3), and one side of the outer positioning column (2) provided with the positioning bolt (3) is also provided with a pushing assembly for pushing the inner positioning column (6) to make the inner positioning column translate; the other side of the lower part of the outer positioning column (2) opposite to the side where the positioning bolt (3) is located is in threaded connection with a mandril (7);
the side wall of the upper cylinder close to the side where the positioning bolt (3) is located is fixedly connected with an arc-shaped first supporting block (1) which is matched with the radian of the outer peripheral surface of the bearing inner ring (9) and the supporting surface of which is flush with a channel of the bearing inner ring (9), and the end part of the first supporting block (1) is provided with a first baffle (101) for preventing the steel ball from falling; be equipped with the sector groove on outer reference column (2) and interior reference column (6) relative position, the center of interior reference column (6) is rotatable to be equipped with round pin axle (10), is connected with round pin axle (10) and is equipped with drive shaft (12) that can be at the sector inslot rotation, with drive shaft (12) fixedly connected with holding surface and first supporting shoe (1) holding surface second supporting shoe (11) that are used for placing the steel ball that flush, the tip of second supporting shoe (11) is equipped with second baffle (111) that are used for preventing the steel ball and drop.
2. The tool for assembling the miniature double-row bearing according to claim 1, wherein: the pushing assembly comprises a supporting rod (4) connected with the outer positioning column (2), one end of the supporting rod (4) extending to the position between the outer positioning column (2) and the inner positioning column (6) is connected with a spring (5), one end of the spring (5) is sleeved on the supporting rod (4), and the other end of the spring is abutted to the lower cylinder of the inner positioning column (6) to be matched.
3. The tool for assembling the miniature double-row bearing according to claim 1, wherein: the upper end face of the outer positioning column (2) is an inclined plane which is gradually inclined downwards towards one side of the positioning bolt (3) from the farthest position of the upper circular groove from the first supporting block (1).
4. The tool for assembling the miniature double-row bearing according to claim 1, wherein: an observation window used for observing the position of the free end of the positioning bolt (3) is arranged on the outer positioning column (2).
5. The method for assembling a micro double bearing using the assembling tool according to any one of claims 1 to 4, characterized by mainly comprising the steps of:
(1) and checking the position of the inner positioning column and the outer positioning column when the inner positioning column and the outer positioning column are coaxial by using a standard double-row bearing: defining the number of a row of steel balls in a standard double-row bearing as n, placing a row of steel balls which are assembled in the standard double-row bearing by using a traditional method downwards on a positioning groove of an outer positioning column (2) and a positioning step of an inner positioning column (6), keeping the inner ring of the bearing to rotate freely, enabling the outer positioning column (2) to be coaxial with the inner positioning column (6), adjusting two positioning bolts (3) to enable free ends of the two positioning bolts to contact the inner positioning column (6) to determine the position of the inner positioning column (6) when the outer positioning column (2) is coaxial with the inner positioning column (6);
(2) placing a bearing inner ring, a steel ball and a bearing outer ring: taking out the standard double-row bearing, placing an inner ring (9) of the bearing to be assembled on a positioning step of an inner positioning column (6), screwing out a mandril (7), translating the inner positioning column (6) to one side far away from a positioning bolt (3) under the action of a pushing component, enabling a space between an outer positioning column (2) and the inner positioning column (6) to be capable of placing steel balls, and sequentially placing n-1 steel balls on a first supporting block (1) by taking a first baffle (101) as a starting point; taking a second baffle (111) as a starting point, placing the last 1 steel ball on a second supporting block (11), and then placing a bearing outer ring (8) on a positioning groove of an outer positioning column (2);
(3) and adjusting the position from the last 1 steel ball to the inner ring and the outer ring of the bearing without loose sleeve: adjusting the ejector rod (7) to push the inner positioning column (6) to move to a position contacting with the free end of the positioning bolt (3); the driving shaft (12) is rotated to drive the second supporting block (11) to rotate, so that the steel balls arranged on the second supporting block (11) move to the position farthest from the first supporting block (1) to ensure that the inner ring and the outer ring are not sleeved in a loose manner after the bearing is taken out;
(4) assembling a row of steel balls: taking out the bearing, equally dividing the steel balls, and inserting the steel balls into the retainer with the locking notch, thereby completing the assembly of a row of steel balls;
(5) and integrally assembling a bearing: and (5) repeating the steps (1) to (4) to finish the assembly of another row of steel balls, namely the assembly of the miniature double-row bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584143.6A CN109737145B (en) | 2018-12-24 | 2018-12-24 | Tool and method for assembling miniature double-row bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584143.6A CN109737145B (en) | 2018-12-24 | 2018-12-24 | Tool and method for assembling miniature double-row bearing |
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| Publication Number | Publication Date |
|---|---|
| CN109737145A CN109737145A (en) | 2019-05-10 |
| CN109737145B true CN109737145B (en) | 2020-02-18 |
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| CN201811584143.6A Active CN109737145B (en) | 2018-12-24 | 2018-12-24 | Tool and method for assembling miniature double-row bearing |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644224U (en) * | 1979-09-14 | 1981-04-21 | ||
| JPS5834724A (en) * | 1981-08-18 | 1983-03-01 | Nippon Seiko Kk | Device for assembly of double-row ball bearings |
| JP2002219623A (en) * | 2001-01-25 | 2002-08-06 | Nsk Ltd | Ball assembling device for double row ball bearing |
| CN101487498A (en) * | 2009-02-25 | 2009-07-22 | 王建 | Bearing rotating ball-separating apparatus |
| CN201434022Y (en) * | 2009-05-08 | 2010-03-31 | 王光伟 | Bearing bead embedding die set |
| CN106763243A (en) * | 2017-01-03 | 2017-05-31 | 无锡市利钧轴承有限公司 | A kind of two-row ball bearing fills ball frock and automatic dress ball method automatically |
| CN107218308A (en) * | 2017-07-19 | 2017-09-29 | 江苏万达特种轴承有限公司 | Two-row ball bearing fills out the frock of ball |
-
2018
- 2018-12-24 CN CN201811584143.6A patent/CN109737145B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644224U (en) * | 1979-09-14 | 1981-04-21 | ||
| JPS5834724A (en) * | 1981-08-18 | 1983-03-01 | Nippon Seiko Kk | Device for assembly of double-row ball bearings |
| JP2002219623A (en) * | 2001-01-25 | 2002-08-06 | Nsk Ltd | Ball assembling device for double row ball bearing |
| CN101487498A (en) * | 2009-02-25 | 2009-07-22 | 王建 | Bearing rotating ball-separating apparatus |
| CN201434022Y (en) * | 2009-05-08 | 2010-03-31 | 王光伟 | Bearing bead embedding die set |
| CN106763243A (en) * | 2017-01-03 | 2017-05-31 | 无锡市利钧轴承有限公司 | A kind of two-row ball bearing fills ball frock and automatic dress ball method automatically |
| CN107218308A (en) * | 2017-07-19 | 2017-09-29 | 江苏万达特种轴承有限公司 | Two-row ball bearing fills out the frock of ball |
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| Publication number | Publication date |
|---|---|
| CN109737145A (en) | 2019-05-10 |
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