CN211576076U - Automobile water pump shaft connecting bearing assembly height detection mechanism - Google Patents
Automobile water pump shaft connecting bearing assembly height detection mechanism Download PDFInfo
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- CN211576076U CN211576076U CN202020621810.XU CN202020621810U CN211576076U CN 211576076 U CN211576076 U CN 211576076U CN 202020621810 U CN202020621810 U CN 202020621810U CN 211576076 U CN211576076 U CN 211576076U
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- bearing assembly
- detection mechanism
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- adjusting sleeve
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Abstract
The utility model discloses a car water pump axle is bearing assembly height detection mechanism even, including the equipment platform, equipment platform upper portion is equipped with the frock bottom plate, and frock bottom plate upper portion is equipped with the frock base, frock bottom plate middle part is equipped with the mandrel, and the outside that equipment platform middle part is located the mandrel is equipped with the base, and the measuring staff is worn to establish inside the mandrel, and the outside activity of measuring staff is equipped with the adjusting collar, and the grating seat is connected to the bottom of adjusting collar, is equipped with hysteresis lag displacement sensor in the grating seat, and hysteresis lag displacement sensor upper end is equipped with compression spring, and the water pump body is placed on frock base upper portion, and the contact of position need be measured to gauge. The utility model discloses use little stroke measuring tool, through increasing mechanical part, the stroke scope is measured in the increase, both can satisfy big measuring range, can satisfy measurement accuracy and stability requirement again, can accomplish that the axle links the whole detections of bearing assembly height in the automobile water pump production process, and every product size of guaranteeing the assembly all is qualified.
Description
Technical Field
The utility model relates to the field of automotive technology, specifically indicate an automobile water pump shaft is bearing assembly height detection mechanism.
Background
When the automobile water pump is assembled, the shaft connecting shaft is assembled firstly, and then the impeller and the hub are assembled, wherein the impeller and the hub are positioned and assembled by using the shaft end of the shaft connecting bearing, and when the height of the assembled shaft connecting bearing is unqualified, the height of the assembled impeller is higher and interferes with an engine or a water pump volute; the impeller is low and will interfere with the water seal, damaging the water seal or shortening the service life of the water seal. The shaft connecting bearing has two unqualified assembling heights: one is that the purchased shaft connecting bearing has unqualified size, and the other is that the shaft connecting bearing is not assembled in place in the assembly process, which also causes the unqualified size of the shaft connecting bearing. The condition that the shaft connecting bearing is not assembled in place can be caused by unqualified hole size of the water pump body, unqualified bearing diameter, or hole strain in the assembly process, small equipment pressure and the like.
Aiming at the situation that the purchased automobile water pump shaft connecting bearing is unqualified in height, the height is mainly checked through the shaft connecting bearing in the prior art, and the product with unqualified height is picked out. The method aims at the problem that the shaft connecting bearing is unqualified in size due to the fact that the shaft connecting bearing cannot be assembled in place in the assembling process: the assembly height of the shaft connecting bearing is measured mainly through frequent spot inspection of inspection personnel, and the condition that the assembly height of the shaft connecting bearing is unqualified is prevented. The inspector needs to detect other inspection items, so that the inspection height cannot be fully realized. Therefore, the manual inspection cost is increased due to the whole inspection height of the shaft connecting bearing, and the condition of missed inspection is inevitable or unavoidable due to manual inspection; the assembly height is checked by inspection personnel, the condition that the shaft connecting bearing is not assembled in place cannot be completely avoided, and the cost is increased if all the inspection is carried out.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome above technical defect, provide an automobile water pump bearing assembly height detection mechanism, can directly measure the axle that assembles back at water pump bearing assembly process and whether qualified to the impeller height dimension of assembly also can be guaranteed, above-mentioned problem is avoided.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides an automobile water pump shaft is bearing assembly height detection mechanism even, includes the equipment platform, equipment platform upper portion is equipped with the frock bottom plate, frock bottom plate upper portion is equipped with the frock base, frock bottom plate middle part is equipped with the mandrel for frock base centering, the outside that equipment platform middle part is located the mandrel is equipped with the base, and the base inboard is located the mandrel below and is equipped with the backing pin, the measuring staff is worn to establish by the mandrel inside, the measuring staff top is equipped with the gauge head, the outside activity of measuring staff is equipped with the adjusting collar, the adjusting collar outside is equipped with the clamp plate, bottom one side of adjusting collar is equipped with the cam, the hand (hold) is connected to the cam, the grating seat is connected to the bottom of adjusting collar, be equipped with hysteresis lag displacement sensor in the grating seat, hysteresis lag displacement sensor upper end is.
Preferably, the upper end of the adjusting sleeve is provided with a dustproof ring.
Preferably, a gasket is arranged between the adjusting sleeve and the grating seat.
Preferably, the two ends of the adjusting sleeve are sleeved with self-lubricating bushings.
Preferably, the hysteresis displacement sensor has a movement stroke of 10mm, an accuracy of 0.2% FS, a resolution 4000 of the mitsubishi a/D module for measurement, and a minimum scale of 10/4000-0.025 mm.
Compared with the prior art, the utility model the advantage lie in: the utility model discloses a mechanical part that can adjust the stroke from top to bottom increases hysteresis lag displacement sensor's measuring range, if select long hysteresis lag displacement sensor price ratio higher, measurement accuracy reduces, direct measurement coupling bearing tip height, the measuring staff uses up, is difficult to seal, gets into oil easily, influence precision such as dust, and the measuring staff is long and thin, impresses and uses easy damage, the utility model discloses use little stroke measuring tool, through increasing mechanical part, the stroke scope is measured in the increase, both can satisfy big measurement range, can satisfy measurement accuracy and stability requirement again, can accomplish that the coupling bearing assembly height is whole to be detected in the automobile water pump production process, guarantees that every product size of assembly is qualified, practices thrift manufacturing cost, guarantees that the product size of assembly is hundred percent qualified, avoids producing claim expense.
Drawings
Fig. 1 is the utility model relates to a car water pump shaft is bearing assembly height detection mechanism's schematic structure.
Fig. 2 is a schematic diagram of the structure of the hysteresis displacement sensor.
As shown in the figure: 1. measuring head, 2, measuring rod, 3, mandrel, 4, base, 5, dust ring, 6, self-lubricating bush, 7, pressing plate, 8, adjusting sleeve, 9, compression spring, 10, stop pin, 11, handle, 12, cam, 13, gasket, 14, grating seat, 15, hysteresis displacement sensor, 16, equipment platform, 17, tooling bottom plate, 18, tooling base, 19, water pump body, 20, shaft connecting bearing, 21, top plate, 22 and bearing pressure head.
Detailed Description
The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
With reference to the attached drawings, the automobile water pump shaft connecting bearing assembly height detection mechanism comprises an equipment platform 16, a tooling bottom plate 17 is arranged on the upper portion of the equipment platform 16, a tooling base 18 is arranged on the upper portion of the tooling bottom plate 17, a mandrel 3 is arranged in the middle of the tooling bottom plate 17 and used for centering the tooling base 18, a base 4 is arranged on the outer side of the mandrel 3 in the middle of the equipment platform 16, a stop pin 10 is arranged on the inner side of the base 4 and below the mandrel 3, a measuring rod 2 penetrates through the mandrel 3, a measuring head 1 is arranged at the top of the measuring rod 2, an adjusting sleeve 8 is movably arranged outside the measuring rod 2, a pressure plate 7 is arranged outside the adjusting sleeve 8, a cam 12 is arranged on one side of the bottom end of the adjusting sleeve 8, the cam 12 is connected with a handle 11, the bottom of the adjusting sleeve 8 is connected with a grating seat 14, a hysteresis lag, the wear-resistant steel ball at the top of the measuring head 1 is contacted with the position to be measured of the shaft connecting bearing 20 of the water pump body 19. The upper end of the adjusting sleeve 8 is provided with a dustproof ring 5. A gasket 13 is arranged between the adjusting sleeve 8 and the grating seat 14. And the two ends of the adjusting sleeve 8 are sleeved with self-lubricating bushings 6. The height measurement of the mechanism depends on a hysteresis displacement sensor 15 arranged below the tool, the selected movement stroke is 10mm, the precision is 0.2% FS, the resolution of a Mitsubishi A/D module for measurement is 4000, the minimum scale which can be displayed is 10/4000-0.025 mm, the height tolerance range of the shaft coupling bearing 20 after assembly is generally +/-0.25- +/-0.3 (0.5-0.6), and the resolution and the precision can meet the use requirements.
The utility model discloses when concrete implementation, 1 top wear-resisting steel ball of gauge head and the contact of the position of need measuring of axle bearing 20, receive decurrent pressure after, with 2 dresses of measuring staff together, can be in the uide bushing 8 downstream, the dust ring 5 of uide bushing 8, play the effect that prevents dust and oil and get into, two self-lubricating bushes 6 can lead measuring staff 2 from top to bottom, can prevent 2 wearing and tearing of measuring staff again, the fender shoulder of 2 bottoms of measuring staff, play 2 upper shift spacing effects of measuring staff, keep off the shirt rim of shoulder, can play the trace oil that 5 leakages of water conservancy diversion dust ring drip all around, prevent that 15 measuring staff of displacement sensor from getting into inside it, 2 lower inlays of measuring staff has the contact of wear-resisting carbide stick and lower fixed sensor 15, reducible wearing and tearing are avoided influencing the dipperstick. The compression spring 9 is used for resetting the measuring rod 2, the cam 12 can compress the measuring rod 2 downwards by 2.5mm after rotating by 90 degrees through the handle 11, the measuring rod 2 can reset under the action of the spring and can be attached to the gasket 13 after rotating by the handle 11 downwards, and the cam 12 is mainly used for pre-compressing the displacement sensor 15 during adjustment. The pressure plate 7 is used for fixing the position of the adjusting sleeve 8, the sizes of the end parts of the shaft connecting bearings 20 of different products to the surface of the water pump body 19 are different, the pressure plate 7 can be loosened, the adjusting sleeve 8 moves up and down, and the pressure plate 7 is fastened and fixed after being adjusted to a proper position. In addition, the mandrel 3 has the function of centering the tool base 18, meanwhile, the bottom step is loosened on the pressure plate 7, and when the adjusting sleeve 8 can move downwards, the blocking shoulder at the lower part of the measuring head 1 is blocked, so that the whole structure is prevented from falling out.
The adjusting method of the detection mechanism comprises the following steps: the pressing plate 7 is loosened, the adjusting sleeve 8 falls to the lowest point, the equipment is in a manual state, the water pump body 19 is placed on the tooling base 18, the mandrel 3 is centered, and the shaft connecting bearing 20 is installed on the upper pressure head; the shaft connecting bearing 20 is pressed in place, then the handle of the cam 12 is moved upwards, the precompression quantity of the displacement sensor 15 is 2.5mm, the adjusting sleeve 8 is pushed upwards, after the measuring head 1 contacts the end part of the shaft connecting bearing 20, the adjusting sleeve 8 is fixed by tightening the pressing plate 7, and then the handle 11 of the cam 12 is turned downwards; the press-fitting equipment is withdrawn, the equipment is set in an automatic state, then a product is assembled, the equipment controls the displacement sensor 15 to automatically measure the height dimension of the shaft connecting bearing 20, and then the tolerance range to be controlled of the shaft connecting bearing 20 is set according to the actually measured dimension. The control setting size can also be increased by a compensation number to make the displayed data consistent with the product requirement.
When the water pump shaft connecting bearing 20 is assembled, the water pump body 19 is placed on the base 4, the mandrel 3 is centered, the shaft connecting bearing 20 is pressed into the water pump body 19 from top to bottom by a pressure head of the shaft connecting bearing 20, in the pressing process of the shaft connecting bearing 20, when the shaft connecting bearing 20 is pressed in place by 2.5mm, a shaft head of the shaft connecting bearing 20 can contact the measuring head 1, and the measuring head 1 transfers the pressing movement of the shaft connecting bearing 20 to the hysteresis displacement sensor 15 below through the measuring rod 2. After the lower edge of the outer sleeve of the shaft connecting bearing 20 is pressed against the mandrel 3, the assembly is in place, the PLC controls the press fitting equipment to maintain pressure for several seconds, the hysteresis displacement sensor 15 collects data through the A/D module, and judges whether the height is qualified or not according to set data, the alarm lamp of unqualified equipment is on, and the touch screen connected with the PLC displays the reason that the measured data is unqualified.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides an automobile water pump shaft is bearing assembly height detection mechanism even, includes the equipment platform, and equipment platform upper portion is equipped with the frock bottom plate, and frock bottom plate upper portion is equipped with fixture base, its characterized in that: the utility model discloses a tool base, including frock bottom plate, measuring pin, measuring bar top, measuring bar outside activity, adjusting sleeve outside, the bottom one side of adjusting sleeve is equipped with the cam, the hand (hold) is connected to the cam, the grating seat is connected to the bottom of adjusting sleeve, be equipped with hysteresis lag displacement sensor in the grating seat, hysteresis lag displacement sensor upper end is equipped with compression spring, the water pump body is placed on frock bottom plate upper portion, the contact of position need be measured to gauge head top wear-resisting steel ball and water pump body coupling bearing.
2. The automobile water pump shaft coupling bearing assembly height detection mechanism of claim 1, characterized in that: the upper end of the adjusting sleeve is provided with a dustproof ring.
3. The automobile water pump shaft coupling bearing assembly height detection mechanism of claim 1, characterized in that: and a gasket is arranged between the adjusting sleeve and the grating seat.
4. The automobile water pump shaft coupling bearing assembly height detection mechanism of claim 1, characterized in that: and self-lubricating bushings are sleeved at two ends of the adjusting sleeve.
5. The automobile water pump shaft coupling bearing assembly height detection mechanism of claim 1, characterized in that: the hysteresis displacement sensor has the moving stroke of 10mm, the precision of 0.2% FS, the resolution of a Mitsubishi A/D module for measurement of 4000 and the minimum scale of 10/4000-0.025 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020621810.XU CN211576076U (en) | 2020-04-23 | 2020-04-23 | Automobile water pump shaft connecting bearing assembly height detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020621810.XU CN211576076U (en) | 2020-04-23 | 2020-04-23 | Automobile water pump shaft connecting bearing assembly height detection mechanism |
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| CN211576076U true CN211576076U (en) | 2020-09-25 |
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| CN202020621810.XU Active CN211576076U (en) | 2020-04-23 | 2020-04-23 | Automobile water pump shaft connecting bearing assembly height detection mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050744A (en) * | 2020-08-10 | 2020-12-08 | 人本股份有限公司 | Bearing assembly height dimension detecting instrument |
| CN112212818A (en) * | 2020-10-15 | 2021-01-12 | 安徽固迈汽车零部件有限公司 | Method for detecting height of tapered roller bearing pair |
-
2020
- 2020-04-23 CN CN202020621810.XU patent/CN211576076U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050744A (en) * | 2020-08-10 | 2020-12-08 | 人本股份有限公司 | Bearing assembly height dimension detecting instrument |
| CN112212818A (en) * | 2020-10-15 | 2021-01-12 | 安徽固迈汽车零部件有限公司 | Method for detecting height of tapered roller bearing pair |
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