CN202411779U - Improved structure of compression joint device of cooling fan - Google Patents
Improved structure of compression joint device of cooling fan Download PDFInfo
- Publication number
- CN202411779U CN202411779U CN2012200214026U CN201220021402U CN202411779U CN 202411779 U CN202411779 U CN 202411779U CN 2012200214026 U CN2012200214026 U CN 2012200214026U CN 201220021402 U CN201220021402 U CN 201220021402U CN 202411779 U CN202411779 U CN 202411779U
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- lower clamp
- hole
- cooling fan
- gripper shoe
- pilot pin
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Abstract
The utility model relates to an improved structure of a compression joint device of a cooling fan. A lifting supporting plate is parallelly arranged above a horizontal base; a mounting hole is formed in the center of the supporting plate; a lower clamp in the shape of a step disc is arranged above the supporting plate; a small end of the lower clamp extends into the mounting hole, and the outer diameter of the small end of the lower clamp is smaller than the aperture of the mounting hole; a motor positioning cavity is formed at a big end of the lower clamp; a through hole is formed in the center of the small end, and is communicated with the motor positioning cavity; a vertical ejector rod is arranged in the through hole of the lower clamp, and is in clearance fit with the through hole; a top head rises from the center of the end face of the upper end of the ejector rod; an upper pilot pin capable of vertically lifting is coaxially arranged above the lower clamp; and a vertical centering rod is arranged on the device, and a coaxial centering hole is formed in each of the upper end face and the lower end face of the centering rod. The centering rod is used for detecting the coaxiality of the upper pilot pin and the lower clamp before press mounting, so that the press mounting process is stable, the magnitude of interference is uniform, the press-in force is reduced, the press mounting alarm is reduced, the rework rate and the rejection rate are reduced, and then the cost is reduced.
Description
Technical field
The utility model relates to a kind of compression bonding apparatus, relates in particular to the crimping of motor and cooling fan on the automobile.
Background technology
The interference fit that is assembled into of cooling fan on the automobile and motor connects, minimum interference amount 0.008mm, and the maximum interference amount is 0.028mm.The process that press-fits of cooling fan and motor is accomplished through compression bonding apparatus.
The compression bonding apparatus that uses at present is the gripper shoe that above horizontal base, is arranged in parallel, gripper shoe center mounting holes, and the gripper shoe top is arranged and is the discoidal lower clamp of ladder; The lower clamp small end stretches in the installing hole, and with the installing hole matched in clearance, big end is shelved on the gripper shoe and between the gripper shoe to be fixed through clamping screw; Big end is offered the motor positioning chamber, and through hole is offered at the small end center, and through hole is connected with the motor positioning chamber; Arrange a support bar in the through hole, the support bar external diameter is less than the through hole internal diameter, the upper end fixing branch fastener of support bar; The supporting member top is lower than via top, and the lower end is fixed on the horizontal base, vertically disposes lead and carrying bolt respectively in the lower clamp both sides; Lead upper end is fixed on the gripper shoe, and in the locating hole of lower end load level base, can upper and lower up-down in locating hole, the carrying bolt upper end be positioned at the gripper shoe top; The lower end is tightened on the horizontal base, and pocketed springs on the carrying bolt stage casing, both ends of the spring are pressed on gripper shoe and horizontal base respectively.But the seaming chuck of a vertical lift of lower clamp top arranged coaxial, its center drilling, the upward pilot pin of packing into, the cylindrical head of last pilot pin is exposed the seaming chuck bottom straight down.
When press-fiting, motor is shelved in the motor positioning chamber of lower clamp, and cooling fan covers on the motor.Seaming chuck moves down, and last pilot pin inserts in the mold insert hole of offering at the fan top, and seaming chuck is exerted pressure; Gripper shoe drives lower clamp and moves down behind pressurized, concordant with via top until the supporting member top, gripper shoe no longer moves down; Seaming chuck continues to exert pressure, and the fan mold insert is imported motor shaft.
In the crimping process axiality of cooling fan and motor is had relatively high expectations, during crimping, the position of cooling fan is limited last pilot pin, and the position of motor is limited lower clamp.Simultaneously because lower clamp and last pilot pin are moving component in press-fiting process; Must guarantee motor the positioning accuracy of lower clamp, lower clamp positioning accuracy in last pilot pin of the guiding accuracy of descending process, fan, 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 design positioning reference, required precision and the detection method of workpiece and anchor clamps.
There are following three defectives in existing compression bonding apparatus:
The one, the guiding accuracy in the descending process of lower clamp is that the lead through the one of which side guarantees; In long-term use; Lead can squint because of wearing and tearing, owing to lack necessary testing tool, can't confirm the offset direction of lead and concrete side-play amount; Can not in time proofread and correct, the guiding accuracy when causing lower clamp descending is not enough;
The 2nd, the positioning accuracy of lower clamp confirms on gripper shoe that through clamping screw gripper shoe is confirmed on horizontal base through lead, after the lead wearing and tearing, also can cause the positioning accuracy of gripper shoe displacement, lower clamp not enough;
The 3rd, because the motor of different model needs different lower clamp location with cooling fan, after changing lower clamp,, can't confirm the new lower clamp and the accuracy of alignment of last pilot pin owing to lack necessary testing tool and detection means.
Because existing frock scheme fails to consider above technological requirement comprehensively; Cause easily that to press-fit in the process matching allowance inhomogeneous, press-fit the process instability, it is excessive to be pressed into power; Press-fiting alarm rate in the production process reaches more than 10%; That has caused cooling fan and motor press-fits the cost height, at the bottom of the efficient, and problems such as time-consuming.
The utility model content
The utility model technical problem to be solved has been to provide a kind of guiding accuracy that can guarantee in lower clamp positioning accuracy, the descending process of lower clamp, goes up the structure-improved of the cooling fan compression bonding apparatus of pilot pin and lower clamp accuracy of alignment when press-fiting.
The utility model is realized through following technical scheme:
A kind of structure-improved of cooling fan compression bonding apparatus, the horizontal base top liftable gripper shoe that is arranged in parallel, gripper shoe center mounting holes,
The gripper shoe top is arranged and is the discoidal lower clamp of ladder; The lower clamp small end stretches in the installing hole, and big end is shelved on the gripper shoe, and big end is offered the motor positioning chamber of laying motor; Through hole is offered at the small end center; Through hole is connected with the motor positioning chamber, fixes through clamping screw between lower clamp and the gripper shoe
But the last pilot pin of a vertical lift of lower clamp top arranged coaxial, the cylindrical head of last pilot pin are straight down,
It is characterized in that:
The small end external diameter of said lower clamp is less than the installing hole aperture on the gripper shoe,
Arranging a vertical push rod in the through hole of lower clamp, is matched in clearance between push rod and the through hole,
The end face umbo top of push rod upper end, the top, top is lower than via top, and the difference in height between the two and the lifting travel of gripper shoe are complementary,
End, push rod lower end is stretched into and is matched in clearance between horizontal base and the horizontal base, and annular lip is shelved on the horizontal base, between the two through bolt locking,
Said device is equipped with a vertical centering rod; Its upper and lower end face is offered coaxial to mesopore respectively; Go up being matched in clearance between mesopore and the last pilot pin; To being matched in clearance between mesopore and the top, centering rod one side is towards offering air-vent respectively to the bottom of mesopore down, and the height after the length of centering rod and the motor assembling is complementary.
Axiality when importing the fan mold insert for the assurance motor shaft has been made a centering rod., compression bonding apparatus startup back, initial workpiece must check the axiality of pilot pin and lower clamp before producing: the top that elder generation inserts push rod with centering rod lower end; Adopt the some flowing mode will go up pilot pin then and insert centering rod upper end; Centering rod two ends all plug-in mounting good after; Attempt rotating the centering rod, confirm the axiality according with process requirements.If the centering rod can rotate, the expression axiality reaches technological requirement, has so just guaranteed to press-fit each item required precision in the process, thereby guarantees to press-fit process stabilization, reduces to be pressed into power.If the centering rod can not rotate, just need the position of adjustment lower clamp this moment, can rotate flexibly until the centering rod.
Matched in clearance between push rod and the lower clamp; Push rod is used for confirming the positioning accuracy of lower clamp and the guiding accuracy of descending process; When using the centering rod to detect; If the centering rod can not rotate flexibly, need adjustment bolt and clamping screw this moment, with the position of fine setting push rod and lower clamp to reaffirm axiality.Because push rod is positioned at the lower clamp center, so the offset direction of lower clamp is easy to when utilizing the centering rod to detect, confirm with side-play amount, is convenient to adjust.
Further, consider the general requirement of cooling fan and motor matching allowance, going up the maximal clearance between mesopore aperture and the last pilot pin head is 0.035mm; Be 0.029mm to the maximal clearance between mesopore aperture and the top down; Maximal clearance between push rod and the 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 the lower clamp outer rim, is beneficial to different directions adjustment push rod and lower clamp.
The beneficial effect of the utility model is:
1, goes up the axiality of pilot pin and lower clamp before utilizing centering rod to detect to press-fit, guaranteed to press-fit the positioning accuracy of cooling fan and motor in the process, thereby guaranteed to press-fit process stabilization;
2, through push rod guarantee lower clamp positioning accuracy and descending in guiding accuracy, the offset direction and the degrees of offset of being convenient to observe lower clamp are beneficial to adjustment;
3, it is high to press-fit the axiality of cooling fan and motor in the process, and the magnitude of interference is even, has reduced the power of being pressed into, and reduces to press-fit warnings, minimizing rework rate and scrappage, thereby reduces cost.
Description of drawings
Fig. 1 is the structural representation of existing compression bonding apparatus
Fig. 2 is the structure improved structural representation of the utility model compression bonding apparatus
Fig. 3 is the structural representation of centering rod
Fig. 4 is the structural representation of lower clamp
Among Fig. 1-4: 1 is lower clamp, and 101 is the motor positioning chamber, and 102 is through hole, and 2 is push rod, and 201 is annular lip, and 202 are the top; 3 is last pilot pin, and 4 is seaming chuck, and 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 the centering rod, and 121 is last to mesopore, and 122 is down to mesopore; 123 is air-vent, and 13 is bolt, and 14 are existing lower clamp, and 15 is support bar, and 16 is supporting member.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The compression bonding apparatus that uses at present is the gripper shoe 6 that above horizontal base 5, is arranged in parallel, gripper shoe 6 center mounting holes; Gripper shoe 6 tops arrange and are the discoidal existing lower clamp 14 of ladder that existing lower clamp 14 small ends stretch in the installing hole, with the installing hole matched in clearance; Big end is shelved on the gripper shoe 6, with gripper shoe 6 between fixing through clamping screw 7, hold greatly and offer motor positioning chamber 101, through hole is offered at the small end center; Through hole is connected with the motor positioning chamber, arranges a support bar 15 in the through hole, and support bar 15 external diameters are less than the through hole internal diameter; The upper end fixing branch fastener 16 of support bar 15, supporting member 16 tops are lower than via top, and the lower end is fixed on the horizontal base 5; Respectively vertically configuration lead 10 and carrying bolt 11 in existing lower clamp 14 both sides, lead 10 upper ends are fixed on the gripper shoe 6, in the locating hole of lower end load level base 5, can upper and lower up-down in locating hole; Carrying bolt 11 upper ends are positioned at gripper shoe 6 tops; The lower end is tightened on the horizontal base 5, and pocketed springs on carrying bolt 11 stage casings, both ends of the spring are pressed on gripper shoe 6 and horizontal base 5 respectively.But the seaming chuck 4 of an existing vertical lift of lower clamp 14 top arranged coaxial, its center drilling, the upward pilot pin 3 of packing into, the cylindrical head of last pilot pin 3 is exposed seaming chuck 4 bottoms straight down.
When press-fiting, motor 8 is shelved in motor 8 positioning chambers of existing lower clamp 14, and cooling fan 9 covers on the motor 8.Seaming chuck 4 moves down; Last pilot pin 3 inserts in the mold insert hole of offering at the fan top, and seaming chuck 4 is exerted pressure, and gripper shoe 6 drives existing lower clamp 14 and moves down behind pressurized; Concordant until supporting member 16 tops with via top; Gripper shoe 6 no longer moves down, and seaming chuck 4 continues to exert pressure, and the fan mold insert is imported 8 in motor.
In the crimping process axiality of cooling fan 9 and motor 8 is had relatively high expectations, during crimping, the position of cooling fan 9 is limited last pilot pin 3, and motor 8 positions are limited existing lower clamp 14.Simultaneously because existing lower clamp 14 is moving component with last pilot pin 3 in press-fiting process; Must guarantee motor 8 the positioning accuracy of existing lower clamp 14, existing lower clamp 14 positioning accuracy in last pilot pin 3 of the guiding accuracy of descending process, cooling fan 9, 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 to go up the axiality of pilot pin 3 and existing lower clamp 14.
Existing compression bonding apparatus is because existing lower clamp 14 positioning references bad (through lead 10 location of a side); The descending guiding accuracy of anchor clamps is not enough, and (lead 10 is in long-term the use after the wearing and tearing; Can't detect the guiding drift condition); And pilot pin 3 can not guarantee (lacking necessary centering testing tool) with existing lower clamp 14 accuracy of alignments on rigging position, causes to press-fit that matching allowance is inhomogeneous, the power that is pressed into is excessive, process of press in is unstable.
Disposed centering rod 12 in the utility model, be used for to equipment start shooting at every turn back, initial workpiece produce before check go up the axiality of pilot pin 3 and lower clamp 1.Before the production; Following top 202 with centering rod lower end to mesopore 122 grafting push rods 2; Adopt the some flowing mode will go up pilot pin 3 then and insert going up of centering rod 12 upper ends mesopore 121; Attempt then rotating centering rod 12, if centering rod 12 can rotate, pilot pin 3 reaches technological requirement with lower clamp 1 axiality in the expression; If centering rod 12 can not rotate, need adjustment bolt 13 and clamping screw 7 this moment, with the position of fine setting push rod 2 and lower clamp 1, reaffirm axiality.Because push rod 2 is positioned at lower clamp 1 center, so the offset direction of lower clamp 1 is easy to when utilizing centering rod 12 to detect, confirm with side-play amount, is convenient to adjustment and can rotates flexibly until centering excellent 12.
The small end through hole 102 of lower clamp 1 and push rod 2 matched in clearance, small end external diameter be less than installing hole 601 apertures, and push rod 2 substitutes leads 10 becomes the new positioning reference of lower clamp 1, is beneficial to the axiality that detects lower clamp 1 and last pilot pin 3, and adjust convenient; Simultaneously, the integral structure of push rod 2 has substituted support bar 15 and supporting member 16, is beneficial to processing.
After utilizing centering rod 12 to confirm to go up pilot pin 3 and lower clamp 1 axiality, press-fit process, be put into motor 8 on the lower clamp 1 earlier; Be put into cooling fan 9 above the motor 8 then, the maintenance level, seaming chuck 4 is descending; Last pilot pin 3 is inserted in the fan mold insert hole; After then seaming chuck 4 touches cooling fan 9 fully, and lean on seaming chuck 4 to exert pressure with cooling fan 9 importing motor shafts, because 202 tops, top of push rod 2 are lower than through hole 102 tops of lower clamp 1; Lower clamp 1, motor 8 and cooling fan 9 are along with seaming chuck 4 is descending descending by push rod 2 guiding, and lower clamp 1 is a matched in clearance with push rod 2.
After motor shaft end is withstood on the plane on the top 202, motor 8 is no longer descending, cooling fan 9 continues that descending to import cooling fan 9, two connected component end faces up to motor shaft concordant.After fan 9 to be cooled was pressed onto the position and motor 8 pressings of setting, seaming chuck 4 was up automatically, waits for that crimping is next.
Claims (6)
1. the structure-improved of a cooling fan compression bonding apparatus, horizontal base (5) the top liftable gripper shoe (6) that is arranged in parallel, gripper shoe (6) center mounting holes (601),
Gripper shoe (6) top is arranged and is the discoidal lower clamp of ladder (1); Lower clamp (1) small end stretches in the installing hole (601), and big end is shelved on the gripper shoe (6), and big end is offered the motor positioning chamber (101) of laying motor (8); Through hole (102) is offered at the small end center; Through hole (102) is connected with motor positioning chamber (101), and is fixing through clamping screw (7) between lower clamp (1) and the gripper shoe (6)
Lower clamp (1) but the last pilot pin (3) of a top arranged coaxial vertical lift, the cylindrical head of last pilot pin (3) straight down,
It is characterized in that:
The small end external diameter of said lower clamp (1) is less than installing hole (601) aperture on the gripper shoe (6),
Arranging a vertical push rod (2) in the through hole (102) of lower clamp (1), is matched in clearance between push rod (2) and the 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) is complementary,
Push rod (2) end, lower end stretch into horizontal base (5), and horizontal base (5) between for matched in clearance, annular lip (201) is shelved on the horizontal base (5), between the two through bolt (13) locking,
Said device is equipped with a vertical centering rod (12); Its upper and lower end face is offered coaxial to mesopore (121,122) respectively, goes up being matched in clearance between mesopore (121) and the last pilot pin (3); Be matched in clearance with coming directly towards between (202) down to mesopore (122); Centering rod (12) one sides are towards offering air-vent (123) respectively to the bottom of mesopore (121,122), and the height after the length of centering rod (12) and motor (8) assembling is complementary.
2. the structure-improved of cooling fan compression bonding apparatus according to claim 1 is characterized in that: said going up the maximal clearance between mesopore (121) aperture and last pilot pin (3) head is 0.035mm.
3. the structure-improved of cooling fan compression bonding apparatus according to claim 1 is characterized in that: said is 0.029mm to the maximal clearance between mesopore (122) aperture and top (202) down.
4. the structure-improved of cooling fan compression bonding apparatus according to claim 1 is characterized in that: the maximal clearance between said push rod (2) and the through hole (102) is 0.033mm.
5. the structure-improved of cooling fan compression bonding apparatus according to claim 1 is characterized in that: said bolt (13) is equally distributed 4 along annular lip (201).
6. the structure-improved of cooling fan compression bonding apparatus according to claim 1 is characterized in that: said 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 |
|---|---|---|---|
| CN2012200214026U CN202411779U (en) | 2012-01-17 | 2012-01-17 | Improved structure of compression joint device of cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200214026U CN202411779U (en) | 2012-01-17 | 2012-01-17 | Improved structure of compression joint device of cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202411779U true CN202411779U (en) | 2012-09-05 |
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ID=46736573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200214026U Withdrawn - After Issue CN202411779U (en) | 2012-01-17 | 2012-01-17 | Improved structure of compression joint device of cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202411779U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528426A (en) * | 2012-01-17 | 2012-07-04 | 上海博泽汽车部件有限公司 | Improved structure of cooling fan compression joint device |
| CN104259813A (en) * | 2014-08-07 | 2015-01-07 | 中航湖南通用航空发动机有限公司 | Assembly method of annular component bushing and fixture thereof |
| CN108436433A (en) * | 2018-03-01 | 2018-08-24 | 江苏奥雷光电有限公司 | Sleeve and guide ring automatic crimping machine |
-
2012
- 2012-01-17 CN CN2012200214026U patent/CN202411779U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528426A (en) * | 2012-01-17 | 2012-07-04 | 上海博泽汽车部件有限公司 | Improved structure of cooling fan compression joint device |
| CN104259813A (en) * | 2014-08-07 | 2015-01-07 | 中航湖南通用航空发动机有限公司 | Assembly method of annular component bushing and fixture thereof |
| CN108436433A (en) * | 2018-03-01 | 2018-08-24 | 江苏奥雷光电有限公司 | Sleeve and guide ring automatic crimping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20140212 |
|
| RGAV | Abandon patent right to avoid regrant |