CN112404946A - Elastic positioning pressure head mechanism for axial-radial bidirectional composite bearing - Google Patents
Elastic positioning pressure head mechanism for axial-radial bidirectional composite bearing Download PDFInfo
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- CN112404946A CN112404946A CN202011077750.0A CN202011077750A CN112404946A CN 112404946 A CN112404946 A CN 112404946A CN 202011077750 A CN202011077750 A CN 202011077750A CN 112404946 A CN112404946 A CN 112404946A
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- pressure head
- composite bearing
- bearing
- bidirectional composite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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Abstract
The invention discloses an elastic positioning pressure head mechanism of an axial-radial bidirectional composite bearing, which comprises a pressure head body and a pair of fixing frames, wherein a spring and a transition column are arranged in the middle of the pressure head body, the transition column is abutted against the pair of fixing frames to force the pair of fixing frames to be relatively opened, a stop pin is further arranged on the pressure head body and used for limiting the maximum opening angle of the pair of fixing frames, the pair of fixing frames are provided with a pair of clamping hook parts and used for being inserted into an inner hole of the bearing when the pair of fixing frames are at the maximum opening angle and clamping a lower port of the bearing in the downward moving process, the lower end surface of the pressure head body is a pressing surface, and the assembly pressure is applied to the whole bearing through the upper top surface of the axial-radial bidirectional composite bearing. Through the press-fitting structure, the defects of press-fitting of the shaft-diameter bidirectional composite bearing by the traditional press head mechanism are overcome, the press-fitting of the shaft-diameter bidirectional composite bearing is realized, and the positioning, material holding, in-place detection and press-fitting performance of a bearing workpiece are ensured.
Description
Technical Field
The invention relates to a special bearing assembling mechanism, in particular to an elastic positioning pressure head mechanism for a shaft-diameter bidirectional composite bearing.
Background
The structure of the composite bearing is shown in fig. 4, and the composite bearing is different from the traditional needle bearing in that needle rollers are uniformly distributed on the radial end face and the axial circumference.
The currently common needle bearing is pressed and mounted in a manner that an outer ring is used for positioning, the end face of a retainer is pressed and mounted, a sensor directly senses whether a bearing exists in a pressure head, and a ball plunger mounted on a positioning sleeve after the bearing is loaded supports the bearing and cannot slide.
If the traditional pressure head structural form is adopted for carrying out press mounting on the radial bidirectional composite bearing, the bearing cannot be positioned by an outer ring, and the end face of an axial retainer is pressed and mounted, so that needle rollers distributed on the radial end face are easily scattered, a sensor cannot directly sense whether a bearing exists in the pressure head or not, and the loaded bearing cannot be supported by a ball plunger structure.
The design based on the traditional pressure head structural form cannot meet the requirements of bearing positioning, in-place detection and press-fitting performance, and the pressure head needs to be redesigned aiming at the design of the shaft-diameter bidirectional composite bearing.
Disclosure of Invention
The invention aims to provide an elastic positioning pressure head mechanism for a shaft-diameter bidirectional composite bearing, so as to meet the press-fitting requirement of the radial composite bearing.
The invention provides an elastic positioning pressure head mechanism of an axial-radial bidirectional composite bearing, which comprises a pressure head body and a pair of fixing and holding frames symmetrically hinged on the pressure head body, wherein a spring and a transition column capable of moving up and down are arranged in the pressure head body in the middle, the transition column is abutted with the pair of fixing and holding frames to force the pair of fixing and holding frames to oppositely open, a stop pin is further arranged on the pressure head body and used for limiting the maximum opening angle of the pair of fixing and holding frames, the pair of fixing and holding frames are provided with a pair of clamping and hooking parts which are used for being inserted into an inner hole of the axial-radial bidirectional composite bearing when the pair of fixing and holding frames are at the maximum opening angle and clamping a lower port of the axial-radial bidirectional composite bearing in the moving down process, at the moment, the upper top surface of the axial-radial bidirectional composite bearing is abutted with the lower end surface of the pressure head body to realize the positioning and clamping of, and applying assembly pressure to the whole bearing through the upper top surface of the shaft diameter bidirectional composite bearing.
Furthermore, the pair of the fixing frames further comprises a pair of driving arms, the upper ends of the driving arms are abutted to the transition column, and the lower ends of the driving arms are matched with the stop limiting pins in a stop mode and used for limiting the maximum opening angle of the pair of the fixing frames.
Furthermore, the elastic positioning pressure head mechanism for the shaft-diameter bidirectional composite bearing further comprises a proximity switch bracket, a rocker arm mounting seat, a proximity switch and a detection rocker arm, wherein the lower end of the detection rocker arm is in contact with the upper top surface of the shaft-diameter bidirectional composite bearing when the pressure head mechanism positions and clamps the shaft-diameter bidirectional composite bearing, and the upper end of the detection rocker arm swings to the position of triggering the proximity switch.
Furthermore, the axial-diameter bidirectional composite bearing elastic positioning pressure head mechanism further comprises a spring plunger which is connected with the rocker arm mounting seat and used for resetting the detection rocker arm in a bearing-free feeding state.
Further, the detection rocker arm is hinged to the rocker arm mounting seat through a hinge shaft.
Through the press-fitting structure, the defects of the traditional press-fitting mechanism for the shaft-diameter bidirectional composite bearing are overcome, the press-fitting of the shaft-diameter bidirectional composite bearing is realized, the positioning, material holding, in-place detection and press-fitting performance of a bearing workpiece are guaranteed, and a new design idea is provided for the design of the press-fitting mechanism of the needle roller bearing with other non-traditional structures in the future.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of an elastic positioning ram mechanism for a two-way composite bearing with an axial diameter according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the elastic positioning ram mechanism of the axial-radial bidirectional composite bearing according to the invention;
FIG. 3 is a schematic structural view of a pair of holders according to the present invention; and
fig. 4 is a structural schematic diagram of the shaft diameter bidirectional composite bearing.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention designs an elastic positioning pressure head mechanism of a shaft-diameter bidirectional composite bearing according to the structural characteristics of a workpiece.
As shown in fig. 4, the axial-radial bidirectional composite bearing 20 has a housing 21, rollers 21 distributed on a radial end surface, and rollers 22 distributed on an axial circumference. Wherein the rollers 21 and 22 are respectively fixed by a cage.
The pressure head mechanism is arranged on a pressure rod (not shown in the figure) of the press and used for positioning and clamping the shaft diameter bidirectional composite bearing, and the pressure head mechanism performs downward pressing motion along with the pressure rod to integrally press the bearing into a designated gearbox.
With combined reference to fig. 1 to 3, the ram mechanism includes: the pressure head comprises a pressure head body 1, a proximity switch 2, a proximity switch bracket 3, a detection rocker arm 4, a spring plunger 5, a first hinge pin 6, a rocker arm mounting seat 7, a pair of retaining frames 8, a second hinge pin 9, a third hinge pin 10, a transition column 11 and a spring 12.
The pressure head body 1 is fixedly connected to a pressure rod of a press, and the lower end surface 1a of the pressure head body 1 is a pressing surface, is contacted with the upper top surface of the axial-radial bidirectional composite bearing 20, and is used for applying axial downward force to the axial-radial bidirectional composite bearing. The upper top surface is here the top support surface defined by all radial end rollers 21.
The pressure head body 1 is connected with the proximity switch bracket 3 and the rocker arm mounting seat 7 and is used as a main body part of a bearing workpiece inner hole positioning, press fitting, detecting and fixing structure.
The pair of fixing frames 8 are symmetrically arranged on the pressure head body 1 and are hinged to the pressure head body 1 through second hinge pins 9 respectively, and the second hinge pins 9 serve as rotation fulcrums of the pair of fixing frames 8.
The transition column 11 is movably arranged in the pressure head body 1 in the center, can move up and down and is biased downwards by the spring 12, and the transition column 11 is used for pressing the driving arms 81 of the pair of fixing frames 8 downwards to enable the pair of fixing frames 8 to have a relative opening tendency.
The third hinge pin 10 is located between the pair of holders 8 and serves as a stop pin, and when the pair of holders 8 is freely opened by the transition column 11, the lower end of the driving arm 81 is stopped by the third hinge pin 10, thereby defining the maximum opening angle of the pair of holders 8.
The pair of holders 8 has a hook portion 82 at the lower end thereof, and the hook portion 82 has a shape configured to: the overall dimension of the lower end of the pressure head body is small, the requirement that the pair of fixing frames 8 are inserted into the inner hole of the axial bidirectional composite bearing under the condition of the maximum opening angle is met, then the overall dimension of the pressure head body is gradually increased to the maximum point along the axial direction of the pressure head body, and the dimension is rapidly contracted to form a clamping hook part.
The hook portion 82 is used for hooking the lower port of the axial-radial bidirectional composite bearing, and the upper top surface of the axial-radial bidirectional composite bearing is abutted against the lower end surface 1a of the ram body 1, so that the bearing is positioned and clamped on the ram body 1.
The proximity switch 2 is fixed on the proximity switch bracket 3, and the detection rocker arm 4 is hinged to the rocker arm mounting seat 7 through a first hinge pin 6, and the first hinge pin 6 is used as a rotating fulcrum of the detection rocker arm 4.
The proximity switch 2 indirectly detects whether a bearing workpiece exists or not by detecting the detection rocker arm 4 fixed on the rocker arm mounting seat 7. The spring plunger 5 is connected with the rocker arm mounting seat 7 and used for resetting the detection rocker arm 4 in a bearing-free feeding state.
In the invention, the pair of holding frames 8 are matched with the third hinge pin 10, the transition column 11, the spring 12 and the lower end surface 1a of the pressure head body 1 for use, and play a role in radially opening and closing to hold the bearing after feeding.
Through the press-fitting structure, the defects of the traditional press-fitting mechanism for the shaft-diameter bidirectional composite bearing are overcome, the press-fitting of the shaft-diameter bidirectional composite bearing is realized, the positioning, material holding, in-place detection and press-fitting performance of a bearing workpiece are guaranteed, and a new design idea is provided for the design of the press-fitting mechanism of the needle roller bearing with other non-traditional structures in the future.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An elastic positioning pressure head mechanism of a shaft-diameter bidirectional composite bearing is characterized by comprising a pressure head body and a pair of fixing and holding frames symmetrically hinged on the pressure head body,
a spring and a transition column capable of moving up and down are arranged in the middle of the pressure head main body, the transition column is abutted against the pair of fixing frames to force the pair of fixing frames to open oppositely, a stop pin is further arranged on the pressure head main body and used for limiting the maximum opening angle of the pair of fixing frames,
the pair of fixing frames are provided with a pair of clamping hook parts which are used for being inserted into the inner hole of the shaft-diameter bidirectional composite bearing when the pair of fixing frames are at the maximum opening angle and clamping the lower port of the shaft-diameter bidirectional composite bearing in the downward moving process, at the moment, the upper top surface of the shaft-diameter bidirectional composite bearing is abutted against the lower end surface of the pressure head main body to realize the positioning and clamping,
the lower end face of the pressure head main body is a pressing face, and assembling pressure is applied to the whole bearing through the upper top face of the axial-radial bidirectional composite bearing.
2. The elastic positioning ram mechanism for the two-way composite bearing in shaft diameter according to claim 1, wherein the pair of holders further comprises a pair of driving arms, the upper ends of the pair of driving arms abut against the transition column, and the lower ends of the pair of driving arms are in stop fit with the stop limit pin for limiting the maximum opening angle of the pair of holders.
3. The elastic positioning pressure head mechanism of the shaft diameter bidirectional composite bearing according to claim 1, further comprising a proximity switch bracket, a rocker arm mounting seat, a proximity switch and a detection rocker arm, wherein the lower end of the detection rocker arm is in contact with the upper top surface of the detection rocker arm when the pressure head mechanism positions and clamps the shaft diameter bidirectional composite bearing, and the upper end of the detection rocker arm swings to a position for triggering the proximity switch.
4. The elastic positioning pressure head mechanism of the shaft-diameter bidirectional composite bearing according to claim 3, further comprising a spring plunger connected with the rocker arm mounting seat and used for resetting the detection rocker arm in a bearingless loading state.
5. The axial-radial bidirectional composite bearing elastic positioning pressure head mechanism is characterized in that the detection rocker arm is hinged on the rocker arm mounting seat through a hinge shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011077750.0A CN112404946A (en) | 2020-10-10 | 2020-10-10 | Elastic positioning pressure head mechanism for axial-radial bidirectional composite bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011077750.0A CN112404946A (en) | 2020-10-10 | 2020-10-10 | Elastic positioning pressure head mechanism for axial-radial bidirectional composite bearing |
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| Publication Number | Publication Date |
|---|---|
| CN112404946A true CN112404946A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011077750.0A Pending CN112404946A (en) | 2020-10-10 | 2020-10-10 | Elastic positioning pressure head mechanism for axial-radial bidirectional composite bearing |
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| CN (1) | CN112404946A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006205320A (en) * | 2005-01-28 | 2006-08-10 | Aisin Aw Co Ltd | Snap ring installing device |
| CN201792166U (en) * | 2010-07-31 | 2011-04-13 | 湖北省丹江口丹传汽车传动轴有限公司 | Three-jaw retractable floating pressure head |
| CN102773688A (en) * | 2012-08-15 | 2012-11-14 | 安徽巨一自动化装备有限公司 | Pull-down type press-in device for axle housing bolt |
| CN102941460A (en) * | 2012-11-14 | 2013-02-27 | 安徽巨一自动化装备有限公司 | Outer ring loading tool of tapered roller bearing |
| CN103737548A (en) * | 2014-01-14 | 2014-04-23 | 安徽江淮汽车股份有限公司 | Press-fitting device for annular parts |
| CN210967742U (en) * | 2019-09-09 | 2020-07-10 | 睦高机械(苏州)有限公司 | Axle sleeve snatchs integrative mechanism of impressing |
-
2020
- 2020-10-10 CN CN202011077750.0A patent/CN112404946A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006205320A (en) * | 2005-01-28 | 2006-08-10 | Aisin Aw Co Ltd | Snap ring installing device |
| CN201792166U (en) * | 2010-07-31 | 2011-04-13 | 湖北省丹江口丹传汽车传动轴有限公司 | Three-jaw retractable floating pressure head |
| CN102773688A (en) * | 2012-08-15 | 2012-11-14 | 安徽巨一自动化装备有限公司 | Pull-down type press-in device for axle housing bolt |
| CN102941460A (en) * | 2012-11-14 | 2013-02-27 | 安徽巨一自动化装备有限公司 | Outer ring loading tool of tapered roller bearing |
| CN103737548A (en) * | 2014-01-14 | 2014-04-23 | 安徽江淮汽车股份有限公司 | Press-fitting device for annular parts |
| CN210967742U (en) * | 2019-09-09 | 2020-07-10 | 睦高机械(苏州)有限公司 | Axle sleeve snatchs integrative mechanism of impressing |
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Application publication date: 20210226 |