CN102528426B - Cooling fan compression joint device - Google Patents
Cooling fan compression joint device Download PDFInfo
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- CN102528426B CN102528426B CN201210014308.2A CN201210014308A CN102528426B CN 102528426 B CN102528426 B CN 102528426B CN 201210014308 A CN201210014308 A CN 201210014308A CN 102528426 B CN102528426 B CN 102528426B
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- lower clamp
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- cooling fan
- gripper shoe
- motor
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Abstract
The invention relates to an improved structure of a cooling fan compression joint device. A liftable supporting plate is arranged in parallel above a horizontal base. The center of the supporting plate is provided with a mounting hole. A lower clamp which is of a step disk shape is arranged above the supporting plate. The small end of the lower clamp extends into the mounting hole. The outer diameter of the small end of the lower clamp is less than the aperture of the mounting hole on the supporting plate. The big end of the lower clamp is provided with a motor positioning cavity. The center of the small end of the lower clamp is provided with a through hole. The through hole is communicated with the motor positioning cavity. A vertical ejector rod is arranged in the through hole of the lower clamp. The ejector rod is in clearance fit with the through hole. The center of the end face of the upper end of the ejector rod protrudes to form an ejector head. An upper guide pin capable of vertically lifting and descending is coaxially arranged above the lower clamp. A device is provided with a vertical centering rod. The upper and lower end faces of the vertical centering rod are respectively provided with coaxial centering holes. The coaxiality of the upper guide pin and the lower clamp is detected before press mounting by utilizing the centering rod, so that the press mounting process is ensured stable, the interference is uniform, the pressure is reduced, the press mounting alarm is reduced and the rework rate and the rejection rate are reduced, and thus, the cost is reduced.
Description
Technical field
The present invention relates to a kind of compression bonding apparatus, relate in particular to the crimping of motor and cooling fan on automobile.
Background technology
The interference fit that is assembled into of the cooling fan on automobile and motor connects, minimum interference amount 0.008mm, and maximum interference amount is 0.028mm.The process that press-fits of cooling fan and motor completes by compression bonding apparatus.
The compression bonding apparatus using at present, it is the gripper shoe that is arranged in parallel above horizontal base, installing hole is offered at gripper shoe center, gripper shoe top is arranged and is the discoidal lower clamp of ladder, lower clamp small end stretches in installing hole, with installing hole matched in clearance, large end is shelved in gripper shoe, and by clamping screw, fix between gripper shoe, large end is offered motor positioning chamber, through hole is offered at small end center, through hole is connected with motor positioning chamber, in through hole, arrange a support bar, support bar external diameter is less than through hole internal diameter, the upper end fixed support head of support bar, supporting member top is lower than via top, lower end is fixed on horizontal base, in lower clamp both sides, vertically configure respectively lead and carrying bolt, lead upper end is fixed in gripper shoe, in the locating hole of lower end load level base, on can be in locating hole, lower lifting, carrying bolt upper end is positioned at gripper shoe top, lower end is tightened on horizontal base, pocketed springs on carrying bolt stage casing, both ends of the spring is pressed on respectively gripper shoe and horizontal base.One of lower clamp top arranged coaxial can vertical lift seaming chuck, its center drilling, pack pilot pin into, the cylindrical head of upper pilot pin is exposed seaming chuck bottom straight down.
While press-fiting, motor is shelved in the motor positioning chamber of lower clamp, and cooling fan covers on motor.Seaming chuck moves down, and upper pilot pin inserts in the mold insert hole of offering at fan top, and seaming chuck is exerted pressure, gripper shoe drives lower clamp to move down after pressurized, until supporting member top is concordant with via top, gripper shoe no longer moves down, seaming chuck continues to exert pressure, and fan mold insert is imported to motor shaft.
In crimping process, the axiality of cooling fan and motor is had relatively high expectations, during crimping, the position of cooling fan is limited by upper pilot pin, and the position of motor is limited by lower clamp.Simultaneously because lower clamp and upper pilot pin are moving component in press-fiting process, must guarantee motor the positioning precision of lower clamp, lower clamp at the guiding accuracy of descending process, fan the positioning precision in upper pilot pin, on pilot pin the guiding accuracy of descending process, on rigging position these 6 precision of accuracy of alignment of pilot pin and lower clamp, just can guarantee the axiality of cooling fan and motor.This just need to design positioning datum, required precision and the detection method of workpiece and fixture.
There are following three defects in existing compression bonding apparatus:
The one, the guiding accuracy in the descending process of lower clamp is that the lead by one side guarantees, in long-term use, lead can be offset because of wearing and tearing, owing to lacking necessary testing tool, cannot determine the offset direction of lead and concrete side-play amount, can not proofread and correct in time, the guiding accuracy while causing lower clamp descending is inadequate;
The 2nd, the positioning precision of lower clamp determines in gripper shoe by clamping screw, and gripper shoe is determined on horizontal base by lead, after lead wearing and tearing, also can cause the positioning precision of gripper shoe displacement, lower clamp inadequate;
The 3rd, because the lower clamp that motor and the cooling fan of different model need to be different is located, after changing lower clamp, owing to lacking necessary testing tool and detection means, cannot determine new lower clamp and the accuracy of alignment of upper pilot pin.
Because existing frock scheme fails to consider above technological requirement comprehensively, easily cause that to press-fit in process matching allowance inhomogeneous, press-fit process unstable, pressing-in force is excessive, in production process, press-fiting alarm rate reaches more than 10%, caused cooling fan and motor to press-fit cost high, at the bottom of efficiency, the problems such as time-consuming.
Summary of the invention
Technical problem to be solved by this invention has been to provide a kind of guiding accuracy that can guarantee in lower clamp positioning precision, the descending process of lower clamp, the cooling fan compression joint device of upper pilot pin and lower clamp accuracy of alignment while press-fiting.
The present invention is achieved by the following technical solutions:
, the liftable gripper shoe that is arranged in parallel above horizontal base, installing hole is offered at gripper shoe center,
Gripper shoe top is arranged and is the discoidal lower clamp of ladder, lower clamp small end stretches in installing hole, large end is shelved in gripper shoe, large end is offered the motor positioning chamber of laying motor, through hole is offered at small end center, through hole is connected with motor positioning chamber, between lower clamp and gripper shoe, by clamping screw, fixes
One of lower clamp top arranged coaxial can vertical lift upper pilot pin, the cylindrical head of upper pilot pin straight down,
It is characterized in that:
The small end external diameter of described lower clamp is less than the installing hole aperture in gripper shoe,
In the through hole of lower clamp, arranging a vertical push rod, is matched in clearance between push rod and through hole,
The end face umbo top of push rod upper end, top, top is lower than via top, and difference in height between the two and the lifting travel of gripper shoe match,
It is matched in clearance that end, push rod lower end is stretched between horizontal base and horizontal base, and annular lip is shelved on horizontal base, by bolt, lock between the two,
Described device is equipped with a vertical centering rod, its upper and lower end face is offered respectively coaxial to mesopore, upper to being matched in clearance between mesopore and upper pilot pin, under to mesopore and top between be matched in clearance, centering rod one side is towards air-vent is offered respectively in the bottom of mesopore, and the height after the length of centering rod and motor assembling matches.
Axiality while importing fan mold insert for assurance motor shaft, has made a centering rod., initial workpiece rear in compression bonding apparatus startup must be checked the axiality of pilot pin and lower clamp before producing: first by the top of the excellent lower end insertion of centering push rod, then adopt some flowing mode that upper pilot pin is inserted to centering rod upper end, centering rod two ends all plug-in mounting good after, attempt rotating centering rod, confirm that axiality meets technological requirement.If centering rod can rotate, represent that axiality reaches technological requirement, so just guaranteed to press-fit every required precision in process, thereby guaranteed to press-fit process stabilization, reduce pressing-in force.If centering rod can not rotate, now just need to adjust the position of lower clamp, until centering rod can flexible rotating.
Matched in clearance between push rod and lower clamp, push rod is for determining the positioning precision of lower clamp and the guiding accuracy of descending process, when using centering rod to detect, if centering rod can not flexible rotating, now need to adjust bolt and clamping screw, with the position of finely tuning push rod and lower clamp to reaffirm axiality.Because push rod is positioned at lower clamp center, so the offset direction of lower clamp and side-play amount be easy to determine when utilizing centering rod to detect, and is convenient to adjust.
Further, consider the General Requirements of cooling fan and motor matching allowance, upper is 0.035mm to the maximal clearance between mesopore aperture and upper pilot pin head; Under to mesopore aperture and top between maximal clearance be 0.029mm; Maximal clearance between push rod and through hole is 0.033mm.
Further again, bolt is along annular lip equally distributed 4, and clamping screw is equally distributed a plurality of along lower clamp outer rim, is beneficial to different directions and adjusts push rod and lower clamp.
Beneficial effect of the present invention is:
1, utilize centering rod to detect the axiality that press-fits front upper pilot pin and lower clamp, guaranteed to press-fit the positioning precision of cooling fan and motor in process, thereby guaranteed to press-fit process stabilization;
2, by push rod guarantee lower clamp positioning precision and descending in guiding accuracy, offset direction and the degrees of offset of being convenient to observe lower clamp, be beneficial to adjustment;
3, press-fit in process the axiality of cooling fan and motor high, the magnitude of interference is even, has reduced pressing-in force, reduces and press-fits warnings, minimizing rework rate and scrappage, thereby reduce costs.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing compression bonding apparatus
Fig. 2 is the structural representation of compression bonding apparatus of the present invention
Fig. 3 is the structural representation of centering rod
Fig. 4 is the structural representation of lower clamp
In Fig. 1-4: 1 is lower clamp, 101 is motor positioning chamber, and 102 is through hole, and 2 is push rod, 201 is annular lip, and 202 is top, and 3 is upper pilot pin, and 4 is seaming chuck, 5 is horizontal base, and 6 is gripper shoe, and 7 is clamping screw, and 8 is motor, 9 is cooling fan, and 10 is lead, and 11 is carrying bolt, and 12 is centering rod, 121 is upper to mesopore, and 122 is lower to mesopore, and 123 is air-vent, and 13 is bolt, 14 is existing lower clamp, and 15 is support bar, and 16 is supporting member.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
The compression bonding apparatus using at present, it is the gripper shoe 6 that is arranged in parallel above horizontal base 5, installing hole is offered at gripper shoe 6 centers, gripper shoe 6 tops are arranged and are the discoidal existing lower clamp 14 of ladder, existing lower clamp 14 small ends stretch in installing hole, with installing hole matched in clearance, large end is shelved in gripper shoe 6, and fixing by clamping screw 7 between gripper shoe 6, large end is offered motor positioning chamber 101, through hole is offered at small end center, through hole is connected with motor positioning chamber, in through hole, arrange a support bar 15, support bar 15 external diameters are less than through hole internal diameter, the upper end fixed support head 16 of support bar 15, supporting member 16 tops are lower than via top, lower end is fixed on horizontal base 5, in existing lower clamp 14 both sides, vertically configure respectively lead 10 and carrying bolt 11, lead 10 upper ends are fixed in gripper shoe 6, in the locating hole of lower end load level base 5, on can be in locating hole, lower lifting, carrying bolt 11 upper ends are positioned at gripper shoe 6 tops, lower end is tightened on horizontal base 5, pocketed springs on carrying bolt 11 stage casings, both ends of the spring is pressed on respectively gripper shoe 6 and horizontal base 5.One of existing lower clamp 14 top arranged coaxial can vertical lift seaming chuck 4, its center drilling, pack pilot pin 3 into, the cylindrical head of upper pilot pin 3 is exposed seaming chuck 4 bottoms straight down.
While press-fiting, motor 8 is shelved in motor 8 positioning chambers of existing lower clamp 14, and cooling fan 9 covers on motor 8.Seaming chuck 4 moves down, upper pilot pin 3 inserts in the mold insert hole of offering at fan top, seaming chuck 4 is exerted pressure, gripper shoe 6 drives existing lower clamp 14 to move down after pressurized, until supporting member 16 tops are concordant with via top, gripper shoe 6 no longer moves down, and seaming chuck 4 continues to exert pressure, and fan mold insert is imported to motor 8 axles.
In crimping process, the axiality of cooling fan 9 and motor 8 is had relatively high expectations, during crimping, the position of cooling fan 9 is limited by upper pilot pin 3, and motor 8 positions are limited by existing lower clamp 14.Simultaneously because existing lower clamp 14 and upper pilot pin 3 are moving component in press-fiting process, must guarantee motor 8 the positioning precision of existing lower clamp 14, existing lower clamp 14 at the guiding accuracy of descending process, cooling fan 9 positioning precision in upper pilot pin 3, on pilot pin 3 the guiding accuracy of descending process, on rigging position these 6 precision of accuracy of alignment of pilot pin 3 and existing lower clamp 14, just can guarantee the axiality of upper pilot pin 3 and existing lower clamp 14.
Existing compression bonding apparatus is due to existing lower clamp 14 positioning datums bad (by lead 10 location of a side), not (lead 10 is in long-term use after wearing and tearing for the descending guiding accuracy of fixture, cannot detect guiding drift condition), and pilot pin 3 and existing lower clamp 14 accuracy of alignments can not guarantee (lacking necessary midline detect instrument) on rigging position, cause to press-fit that matching allowance is inhomogeneous, pressing-in force is excessive, process of press in is unstable.
In the present invention, configured centering rod 12, for the axiality to the upper pilot pin 3 of check and lower clamp 1 after the each start of equipment, before initial workpiece production.Before production, by the lower top 202 to mesopore 122 grafting push rods 2 of centering rod lower end, then adopt some flowing mode that upper pilot pin 3 is inserted to the upper to mesopore 121 of centering rod 12 upper ends, then attempt rotating centering rod 12, if centering rod 12 can rotate, in expression, pilot pin 3 and lower clamp 1 axiality reach technological requirement; If centering rod 12 can not rotate, now need to adjust bolt 13 and clamping screw 7, with finely tune push rod 2 and lower clamp 1 position, reaffirm axiality.Because push rod 2 is positioned at lower clamp 1 center, so the offset direction of lower clamp 1 and side-play amount be easy to determine when utilizing centering rod 12 to detect, and is convenient to adjust until centering rod 12 can flexible rotatings.
The small end through hole 102 of lower clamp 1 and push rod 2 matched in clearance, small end external diameter is less than installing hole 601 apertures, push rod 2 substitutes lead 10 becomes the positioning datum that lower clamp 1 is new, is beneficial to the axiality that detects lower clamp 1 and upper pilot pin 3, and adjust convenient; Meanwhile, the integral structure of push rod 2 has substituted support bar 15 and supporting member 16, is beneficial to processing.
Utilize centering rod 12 to determine after upper pilot pin 3 and lower clamp 1 axiality, press-fit process, first motor 8 is put on lower clamp 1, then cooling fan 9 is put into above motor 8, maintenance level, seaming chuck 4 is descending, upper pilot pin 3 is inserted in fan mold insert hole, then seaming chuck 4 touches after cooling fan 9 completely, and top pressure head 4 is exerted pressure cooling fan 9 importing motor shafts, due to through hole 102 tops lower than lower clamp 1,202 tops, top of push rod 2, lower clamp 1, motor 8 and cooling fan 9 are along with seaming chuck 4 is descending descending by push rod 2 guiding, lower clamp 1 and push rod 2 are matched in clearance.
When coming directly towards, plane on 202 is withstood after motor shaft end, motor 8 is no longer descending, and cooling fan 9 continues descending until motor shaft importing cooling fan 9, two connected component end faces are concordant.Fan 9 to be cooled is pressed onto behind the position and motor 8 pressings of setting, and seaming chuck 4 is automatically up, waits for that crimping is next.
Claims (6)
1. a cooling fan compression joint device, horizontal base (5) the top liftable gripper shoe (6) that is arranged in parallel, installing hole (601) is offered at gripper shoe (6) center,
Gripper shoe (6) top is arranged and is the discoidal lower clamp of ladder (1), lower clamp (1) small end stretches in installing hole (601), large end is shelved in gripper shoe (6), large end is offered the motor positioning chamber (101) of laying motor (8), through hole (102) is offered at small end center, through hole (102) is connected with motor positioning chamber (101), fixing by clamping screw (7) between lower clamp (1) and gripper shoe (6)
One of lower clamp (1) top arranged coaxial can vertical lift upper pilot pin (3), the cylindrical head of upper pilot pin (3) straight down,
It is characterized in that:
The small end external diameter of described lower clamp (1) is less than installing hole (601) aperture in gripper shoe (6),
In the through hole (102) of lower clamp (1), arranging a vertical push rod (2), is matched in clearance between push rod (2) and through hole (102),
The end face umbo top (202) of push rod (2) upper end, (202) top, top is lower than through hole (102) top, and the lifting travel of difference in height between the two and gripper shoe (6) matches,
Push rod (2) end, lower end stretch into horizontal base (5), and horizontal base (5) between for matched in clearance, it is upper that annular lip (201) is shelved on horizontal base (5), between the two by bolt (13) locking,
Described device is equipped with a vertical centering rod (12), its upper and lower end face is offered respectively coaxial to mesopore (121,122), upper to being matched in clearance between mesopore (121) and upper pilot pin (3), under to mesopore (122) and top, be matched in clearance between (202), centering rod (12) one sides are towards air-vent (123) is offered respectively in the bottom of mesopore (121,122), and the height after the length of centering rod (12) and motor (8) assembling matches.
2. cooling fan compression joint device according to claim 1, is characterized in that: described upper to the maximal clearance between mesopore (121) aperture and upper pilot pin (3) head, be 0.035mm.
3. cooling fan compression joint device according to claim 1, is characterized in that: described lower to the maximal clearance between mesopore (122) aperture and top (202), be 0.029mm.
4. cooling fan compression joint device according to claim 1, is characterized in that: the maximal clearance between described push rod (2) and through hole (102) is 0.033mm.
5. cooling fan compression joint device according to claim 1, is characterized in that: described bolt (13) is equally distributed 4 along annular lip (201).
6. cooling fan compression joint device according to claim 1, is characterized in that: described clamping screw (7) is for equally distributed a plurality of along lower clamp (1) outer rim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210014308.2A CN102528426B (en) | 2012-01-17 | 2012-01-17 | Cooling fan compression joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210014308.2A CN102528426B (en) | 2012-01-17 | 2012-01-17 | Cooling fan compression joint device |
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| Publication Number | Publication Date |
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| CN102528426A CN102528426A (en) | 2012-07-04 |
| CN102528426B true CN102528426B (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210014308.2A Active CN102528426B (en) | 2012-01-17 | 2012-01-17 | Cooling fan compression joint device |
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| CN108466035B (en) * | 2018-05-14 | 2024-02-13 | 西南交通大学 | Compression ratio wheel shaft press-fitting device-based press-fitting method |
| CN108466050B (en) * | 2018-05-22 | 2024-05-28 | 快克智能装备股份有限公司 | Full-automatic fan blade wheel press-fitting device |
| JP7293102B2 (en) * | 2019-12-17 | 2023-06-19 | ミネベアミツミ株式会社 | gripping device |
| CN113909854B (en) * | 2021-09-28 | 2023-01-20 | 东风柳州汽车有限公司 | Press mounting device |
| CN115070378B (en) * | 2022-06-20 | 2023-10-13 | 陕西法士特齿轮有限责任公司 | Auxiliary device and method for assembling SCU (automated mechanical transmission) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1117178A1 (en) * | 1982-07-05 | 1984-10-07 | Проектно-Конструкторско-Технологический Институт "Молдсельхозтехпроект" | Arrangement for pressing off bushes from base members |
| US6035515A (en) * | 1998-10-16 | 2000-03-14 | Shopvac Corporation | Motor shaft assembly and method |
| US7765658B2 (en) * | 2005-10-17 | 2010-08-03 | Pratt & Whitney Canada Corp. | Blade tip grinding tooling |
| JP2007190640A (en) * | 2006-01-19 | 2007-08-02 | Nsk Ltd | Shaft press-fitting device |
| CN101190516B (en) * | 2006-11-24 | 2011-08-17 | 重庆宗申发动机制造有限公司 | Piston oil ring assembling method |
| CN201389732Y (en) * | 2009-02-20 | 2010-01-27 | 杭州富阳奥泰电器厂 | Motor fan blade press-fit device |
| CN201799834U (en) * | 2010-09-26 | 2011-04-20 | 成都华川电装有限责任公司 | Bearing press-mounting device for reducer shell |
| CN202411779U (en) * | 2012-01-17 | 2012-09-05 | 上海博泽汽车部件有限公司 | Improved structure of compression joint device of cooling fan |
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