CN112476333A - Press mounting tool and method for quickly positioning paired bearings - Google Patents
Press mounting tool and method for quickly positioning paired bearings Download PDFInfo
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- CN112476333A CN112476333A CN202011316810.XA CN202011316810A CN112476333A CN 112476333 A CN112476333 A CN 112476333A CN 202011316810 A CN202011316810 A CN 202011316810A CN 112476333 A CN112476333 A CN 112476333A
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- press
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- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention provides a press fitting tool and method for quickly positioning paired bearings, the tool comprising: the positioning seat (1), the first press-mounting rod (3) and the second press-mounting rod (6); firstly, a first bearing (2) is positioned and installed by adopting a positioning seat (1) and a first press mounting rod (3), and then a second bearing (5) is positioned and installed by adopting the first bearing (2) and the first press mounting rod (3). Through the bearing hole that utilizes the bearing in pairs, adopt the thought that each other is the benchmark, through the accurate positioning of pressure equipment pole on the pressure equipment instrument, can accomplish the alignment of pressure equipment instrument fast, finally realize the accurate pressure equipment of bearing in pairs. The sleeve press-fitting tool solves the problems that the coaxiality is low when paired bearings are pressed and the bearings are jammed when rotating. The coaxiality requirement of the pair of bearings during assembly is ensured, the rotation is stable and flexible all the time, and the processing efficiency and the stability of the product quality are improved.
Description
Technical Field
The invention belongs to the field of machining and manufacturing, and particularly relates to a press-fitting tool and a press-fitting method for quickly positioning paired bearings.
Background
The field of mechanical manufacturing has a large number of paired bearings which are pressed and assembled, and the paired bearings often have coaxiality requirements on installation.
However, the existing press-fitting tool is a press-fitting tool with a single function, cannot be directly fixed on a workpiece to ensure coaxiality, generally needs manual centering while press-fitting, is high in alignment difficulty and low in assembly efficiency, cannot meet the assembly requirement of coaxiality, and often causes bearing rotation jamming.
Disclosure of Invention
The invention provides a press mounting tool and a press mounting method for quickly positioning paired bearings, which can ensure quick positioning in a press mounting process and meet the assembly requirement of coaxiality.
The invention provides a press fitting tool for quickly positioning paired bearings, which comprises: the device comprises a positioning seat 1, a first press-mounting rod 3 and a second press-mounting rod 6; wherein the content of the first and second substances,
the positioning seat 1 is in a stepped cylindrical shape, and a first end of the positioning seat 1 is sleeved in a first through hole of the bearing seat hole 4 for mounting the paired bearings; the size of the first end of the positioning seat 1 is consistent with that of the first through hole;
the first press-fitting rod 3 is a stepped shaft, a first bearing 2 is sleeved on the smaller end of the first press-fitting rod 3, and the smaller end of the first press-fitting rod 3 is inserted into an inner hole of the positioning seat 1 from the direction of a second through hole of the bearing seat hole 4; the size of the smaller end of the first press fitting rod 3 is consistent with the size of the inner hole of the first bearing 2 and the size of the inner hole of the positioning seat 1; the first bearing 2 is in interference fit with the second through hole;
the second press-fitting rod 6 is a stepped shaft, a second bearing 5 is sleeved on the smaller end of the second press-fitting rod 6, and the smaller end of the second press-fitting rod 6 is inserted into the inner hole of the first bearing 2 from the direction of the first through hole of the bearing seat hole 4; the size of the smaller end of the second press-fitting rod 6 is consistent with the size of the inner hole of the second bearing 5 and the size of the inner hole of the first bearing 2; the second bearing 5 is in interference fit with the first through hole.
Optionally, the first end of the positioning seat 1 includes a first section and a second section; the outer diameter of the first section is smaller than that of the second section;
the first section is inserted into the connecting holes of the first through hole and the second through hole of the bearing seat hole 4 and has the same size with the connecting holes;
the second section is inserted into the first through hole of the bearing seat hole 4, and the length of the second section is not less than the depth of the first through hole.
Optionally, the size of the larger end of the first press-fitting rod 3 is not smaller than the outer diameter of the first bearing 2;
the larger end of the second press-fitting rod 6 is not smaller in size than the outer diameter of the second bearing 5.
Optionally, the outer diameter of the first bearing 2 is larger than the outer diameter of the second bearing 5.
Optionally, the step of the positioning seat 1 is provided with a chamfer.
The invention also provides a press fitting method for rapidly positioning paired bearings, which adopts the press fitting tool in any one of the aspects, and the method comprises the following steps:
firstly, mounting and fixing a positioning seat 1 in a first through hole of a bearing seat hole 4, sleeving a first bearing 2 on a smaller end of a first press-fitting rod 3, inserting the smaller end of the first press-fitting rod 3 into the positioning seat 1 from a second through hole, knocking the larger end of the first press-fitting rod 3, pressing the first bearing 2 into the second through hole of the bearing seat hole 4, and taking out the positioning seat 1 and the first press-fitting rod 3;
and secondly, sleeving the second bearing 5 on the smaller end of the second press-fitting rod 6, inserting the smaller end of the second press-fitting rod 6 into the first bearing 2 from the first through hole, knocking the larger end of the second press-fitting rod 6, pressing the second bearing 5 into the first through hole of the bearing seat hole 4, and taking out the second press-fitting rod 6.
Optionally, before striking the larger end of the first press-fitting rod 3, the method further comprises:
the bearing housing bore 4 is heated.
Optionally, before striking the larger end of the second press-fitting rod 6, the method further comprises:
the bearing housing bore 4 is heated.
The invention provides a press mounting tool and a press mounting method for quickly positioning paired bearings. The sleeve press-fitting tool solves the problems that the coaxiality is low when paired bearings are pressed and the bearings are jammed when rotating. The coaxiality requirement of the pair of bearings during assembly is ensured, the rotation is stable and flexible all the time, and the processing efficiency and the stability of the product quality are improved.
Drawings
FIG. 1 is a schematic structural view of a press-fitting tool for quick positioning of paired bearings according to the present invention;
FIG. 2 is a first process diagram of the press-fitting method for quickly positioning paired bearings according to the present invention;
FIG. 3 is a schematic process diagram II of the press-fitting method for quickly positioning the paired bearings according to the present invention;
description of reference numerals:
1-positioning seat; 2-a first bearing; 3-a first press mounting rod;
4, bearing seat holes; 5-a second bearing; 6-second press mounting rod.
Detailed Description
The press-fitting tool and method for quickly positioning paired bearings according to the present invention will be explained with reference to the accompanying drawings.
Referring to fig. 1-3, the present invention provides a press-fitting tool for quickly positioning a pair of bearings, comprising: the device comprises a positioning seat 1 for providing a reference, a first bearing 2 which is pressed, a first pressing rod 3 which presses the first bearing 2, a second bearing 5 which is pressed, and a second pressing rod 6 which presses the second bearing 5.
The paired bearings are sequentially installed, the first bearing 2 is pressed and installed through the first pressing rod 3 according to the reference in the positioning seat 1, and then the second bearing 5 is pressed and installed through the second pressing rod 6 by taking the inner hole of the pressed and installed first bearing 2 as the reference.
The press mounting tool for the paired bearings can quickly align and position and simultaneously ensure high coaxiality.
The invention provides a press-fitting tool for paired bearings, which comprises: the positioning seat 1, the first press-fitting rod 3 and the second press-fitting rod 6. The specific press fitting step comprises:
step one, press-fitting a first bearing 2: the first bearing 2 is pressed into the bearing seat hole 4 by using the press-fitting tool positioning seat 1 and the first press-fitting rod 3. The specific implementation mode is as follows:
the positioning seat 1 is arranged in the bearing seat hole 4 and fixed, the first bearing 2 is sleeved on one end with the smaller outer diameter of the first press-mounting rod 3, the end with the smaller outer diameter of the first press-mounting rod 3 is inserted into the positioning seat 1, the high-precision hole in the positioning seat 1 is used as a reference and is matched with the shaft of the first press-mounting rod 3 for positioning and guiding, and the positioning seat is completely fixed only by once positioning in the press-mounting process. And then the first press-fitting rod 3 is uniformly and slowly knocked to be stably pressed into the first bearing 2. After the first bearing 2 is installed, the positioning seat 1 and the first press-fitting rod 3 are taken out.
Wherein, the inner diameter of the first bearing 2 is closely matched with the outer diameter of the end with smaller outer diameter of the first press-fitting rod 3.
Step two, press fitting of the second bearing 5: a second press-fit rod 6 is used to press the second bearing 5 into the bearing housing bore 4. The specific implementation mode is as follows:
by utilizing the idea of mutual reference, the inner hole of the first bearing 2 installed in the first step is used as the reference and is matched with the shaft of the second press-mounting rod 6 for positioning and guiding, and the press-mounting process can be completely fixed by positioning once. And then the second bearing 5 is smoothly pressed in by uniformly and slowly knocking the second press-fitting rod 6.
The press mounting of the paired bearings is completed through the two steps, so that the bearings are prevented from being skewed, the coaxiality requirement of the paired bearings during assembly is ensured, the problem of jamming of the bearings during rotation is solved, and the bearings are guaranteed to rotate stably and flexibly all the time.
According to the invention, by utilizing the bearing inner holes of the paired bearings and the idea of mutual reference, the alignment of the press-fitting tool can be rapidly completed through the accurate positioning of the press-fitting rod on the press-fitting tool, and finally the accurate press-fitting of the paired bearings is realized. The sleeve press-fitting tool solves the problems that the coaxiality is low when paired bearings are pressed and the bearings are jammed when rotating. The coaxiality requirement of the pair of bearings during assembly is ensured, the rotation is stable and flexible all the time, and the processing efficiency and the stability of the product quality are improved.
Claims (8)
1. A press-fitting tool for rapid positioning of paired bearings, comprising: the positioning seat (1), the first press-mounting rod (3) and the second press-mounting rod (6); wherein the content of the first and second substances,
the positioning seat (1) is in a stepped cylindrical shape, and a first end of the positioning seat (1) is sleeved in a first through hole of a bearing seat hole (4) for mounting the paired bearings; the size of the first end of the positioning seat (1) is consistent with that of the first through hole;
the first press-fitting rod (3) is a stepped shaft, a first bearing (2) is sleeved on the smaller end of the first press-fitting rod (3), and the smaller end of the first press-fitting rod (3) is inserted into an inner hole of the positioning seat (1) from the direction of a second through hole of the bearing seat hole (4); the size of the smaller end of the first press-fitting rod (3) is consistent with the size of the inner hole of the first bearing (2) and the size of the inner hole of the positioning seat (1); the first bearing (2) is in interference fit with the second through hole;
the second press-fitting rod (6) is a stepped shaft, a second bearing (5) is sleeved on the smaller end of the second press-fitting rod (6), and the smaller end of the second press-fitting rod (6) is inserted into the inner hole of the first bearing (2) from the direction of the first through hole of the bearing seat hole (4); the size of the smaller end of the second press-fitting rod (6) is consistent with the size of the inner hole of the second bearing (5) and the size of the inner hole of the first bearing (2); the second bearing (5) is in interference fit with the first through hole.
2. A press-fitting tool according to claim 1, wherein the first end of the positioning socket (1) comprises a first section and a second section; the outer diameter of the first section is smaller than that of the second section;
the first section is inserted into connecting holes of a first through hole and a second through hole of the bearing seat hole (4) and is consistent with the connecting holes in size;
the second section is inserted into a first through hole of the bearing seat hole (4), and the length of the second section is not less than the depth of the first through hole.
3. A press-fitting tool as claimed in claim 1, wherein the larger end of the first press-fitting rod (3) is not smaller in size than the outer diameter of the first bearing (2);
the size of the larger end of the second press-fitting rod (6) is not smaller than the outer diameter of the second bearing (5).
4. A press-fitting tool as claimed in claim 1, wherein the first bearing (2) has an outer diameter larger than that of the second bearing (5).
5. A press-fitting tool as claimed in claim 2, wherein the positioning seats (1) are each provided with a chamfer at a step thereof.
6. A press-fitting method for quick positioning of a pair of bearings, using a press-fitting tool according to any one of claims 1 to 5, the method comprising:
firstly, mounting a positioning seat (1) in a first through hole of a bearing seat hole (4) for fixation, sleeving a first bearing (2) on a smaller end of a first press-fitting rod (3), inserting the smaller end of the first press-fitting rod (3) into the positioning seat (1) from a second through hole, knocking the larger end of the first press-fitting rod (3), pressing the first bearing (2) into the second through hole of the bearing seat hole (4), and taking out the positioning seat (1) and the first press-fitting rod (3);
and secondly, sleeving a second bearing (5) on the smaller end of the second press-fitting rod (6), inserting the smaller end of the second press-fitting rod (6) into the first bearing (2) from the first through hole, knocking the larger end of the second press-fitting rod (6), pressing the second bearing (5) into the first through hole of the bearing seat hole (4), and taking out the second press-fitting rod (6).
7. The method according to claim 6, wherein before striking the larger end of the first press-fitting rod (3), the method further comprises:
heating the bearing housing bore (4).
8. The method of claim 6, wherein prior to said striking the larger end of the second press-fit rod (6), the method further comprises:
heating the bearing housing bore (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011316810.XA CN112476333A (en) | 2020-11-20 | 2020-11-20 | Press mounting tool and method for quickly positioning paired bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011316810.XA CN112476333A (en) | 2020-11-20 | 2020-11-20 | Press mounting tool and method for quickly positioning paired bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112476333A true CN112476333A (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011316810.XA Pending CN112476333A (en) | 2020-11-20 | 2020-11-20 | Press mounting tool and method for quickly positioning paired bearings |
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| Country | Link |
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| CN (1) | CN112476333A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012100765A4 (en) * | 2012-05-24 | 2012-08-30 | Hengdian Group Linix Motor Co,.Ltd | A Tool For Press-mounting Bearings |
| CN104476169A (en) * | 2014-12-01 | 2015-04-01 | 新昌县澄潭镇苗平机械厂 | Bearing assembly machine |
| CN105234892A (en) * | 2015-11-13 | 2016-01-13 | 河南平高电气股份有限公司 | Positioning device for coaxial shaft sleeves in two holes |
| CN205057440U (en) * | 2015-09-08 | 2016-03-02 | 重庆红宇精密工业有限责任公司 | Oil pump shaft pressure -bearing fit -up man utensil |
| CN107443048A (en) * | 2017-09-01 | 2017-12-08 | 中国重汽集团济南动力有限公司 | A kind of knuckle needle bearing press-fitting tool and press-loading process |
| CN109773458A (en) * | 2019-03-19 | 2019-05-21 | 安阳工学院 | The differential bearing assembly device and assembling process of fluid pressure type both ends acted as reference mutual |
-
2020
- 2020-11-20 CN CN202011316810.XA patent/CN112476333A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012100765A4 (en) * | 2012-05-24 | 2012-08-30 | Hengdian Group Linix Motor Co,.Ltd | A Tool For Press-mounting Bearings |
| CN104476169A (en) * | 2014-12-01 | 2015-04-01 | 新昌县澄潭镇苗平机械厂 | Bearing assembly machine |
| CN205057440U (en) * | 2015-09-08 | 2016-03-02 | 重庆红宇精密工业有限责任公司 | Oil pump shaft pressure -bearing fit -up man utensil |
| CN105234892A (en) * | 2015-11-13 | 2016-01-13 | 河南平高电气股份有限公司 | Positioning device for coaxial shaft sleeves in two holes |
| CN107443048A (en) * | 2017-09-01 | 2017-12-08 | 中国重汽集团济南动力有限公司 | A kind of knuckle needle bearing press-fitting tool and press-loading process |
| CN109773458A (en) * | 2019-03-19 | 2019-05-21 | 安阳工学院 | The differential bearing assembly device and assembling process of fluid pressure type both ends acted as reference mutual |
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Application publication date: 20210312 |