CN102095580B

CN102095580B - General front axle fall detection device

Info

Publication number: CN102095580B
Application number: CN2009102582792A
Authority: CN
Inventors: 马安奇; 严兵
Original assignee: Dongfeng Dana Axle Co Ltd
Current assignee: Dongfeng Dana Axle Co Ltd
Priority date: 2009-12-15
Filing date: 2009-12-15
Publication date: 2012-11-14
Anticipated expiration: 2029-12-15
Also published as: CN102095580A

Abstract

The invention discloses a general front axle fall detection device for detecting the fall size of a front axle of an automobile. The device comprises a rough detection device and a fine detection device, wherein a checkout console of the rough detection device is supported on the lower end face of the front axle, and a rough fall detection tool is clamped on the fist outer edge surface of the front axle; a checkout console of the fine detection device is supported on the lower end face of the front axle, and a fine fall detection tool passes through a fist hole of the front axle. The distance (fall) size between the center of the fist surface of the front axle after rough and fine processing and the surface of a plate spring is indirectly calculated by using a general tool such as a height gauge and the like. The invention provides a detection technique with strong universality and capability of detecting front axle fall of multiple varieties for front axle production, which can accurately measure the specific size of the fall, provide specific data for adjustment and effectively reduce waste products because the fall size is over-proof; the detection can be performed on production sites conveniently and quickly, the adjustment time of the detection tools in the detection process is reduced, and the labor intensity of detection is lightened; and the manufacturing cost of the detection tools is reduced, and the investment cost of the detection tools can be saved by tens of thousands of yuan every year.

Description

General form front axle drop pick-up unit

Technical field

The present invention relates to a kind of automobile front axle drop pick-up unit that can conveniently detect plurality of specifications front axle drop size.

Background technology

At present, be used to measure fist face center and leaf spring identity distance in the automobile front axle process and be mostly appliance special for detecting, perhaps adopt three-coordinates measuring machine to detect from (drop).These two kinds of methods all have a lot of inconveniences in actual production process: the former specificity is strong; A kind of cubing can only be used to detect a kind of front axle drop of specification; Along with the increase of front axle kind, the cost of making appliance special for detecting also increases thereupon, and can not adapt to the speed that new product increases far away; Whether qualified and can not accurately measure drop concrete numerical value, be not easy to adjust size in the processing if can only qualitatively judge processing dimension; The latter is because initial outlay is big, and the maintaining expense is high and detect inconveniently, and can't realize the instant detection of production line, can't immediately monitoring to part quality, and be not suitable for being applied to the production scene and detect.

Summary of the invention

For overcoming the deficiency of existing front axle drop detection technique; Goal of the invention of the present invention is to provide a kind of general form front axle drop pick-up unit, and the versatility to realize that front axle detects alleviates operative employee's labour intensity; Reduce the cubing cost of manufacture, and the purpose of accurately measuring the drop size.

For realizing above-mentioned purpose, the present invention includes Rough Inspection device and smart checking device, the check-out console of Rough Inspection device is supported on the leaf spring face of front axle, and thick drop cubing is stuck in the fist outer edge surface of front axle; The check-out console of smart checking device is supported on the leaf spring face of front axle, and smart drop cubing penetrates in the kingpin bore of front axle; First of thick drop cubing is inserted and is contained in the hole of location-plate round platform; First magnet be set in first insert in; The adjustable v-type piece that is used for centering fist center is stuck in the outer edge surface of front axle fist; V-block links to each other with location-plate through web member, is used to simulate and the survey pin that extends center, front-axle pivot hole is arranged on the center of location-plate; Accurately the locating shaft of the smart drop cubing in center, centering front-axle pivot hole inserts in the front-axle pivot hole after the finishing, and second of smart drop cubing is inserted and is contained in the hole of locating shaft round platform, second magnet be set in second insert in.

The check-out console of said Rough Inspection device is connected with dull and stereotyped through key, keyway and T type screw with the check-out console of smart checking device bottom.

First magnet and first is inserted to two or more, and first inserts is nut, and with the location-plate threaded engagement, second magnet and second is inserted to two or more, and second inserts is nut, with the locating shaft threaded engagement.

The present invention is behind roughing front axle fist face; Adopt the Rough Inspection device; V-block through thick drop cubing is stuck in the front axle fist outer edge surface after the roughing, and centering also extends the fist center, and the height K of check-out console, pin top are known fixed with the distance P apart from Q, fist upper and lower end face of location-plate bottom surface; Only need utilize height gauge measure pin top and check-out console bottom surface apart from M, can calculate roughing after front axle fist face leave (drop) size L with the leaf spring identity distance; Behind finishing front axle fist face; Adopt smart checking device; Locating shaft through smart drop cubing inserts in the front-axle pivot hole, accurately centering kingpin bore center and extension, and the height G of check-out console, locating shaft top are known fixed with the distance 0 of bottom centre; Only need utilize height gauge measure locating shaft top and check-out console bottom surface apart from I, can calculate finishing after front axle fist face leave (drop) size H with the leaf spring identity distance.Can conveniently detect the concrete numerical value of the front axle drop size after thick, the finishing, product quality is realized immediately monitoring, be convenient in good time adjustment, to improve the accepted product percentage that front axle is made to unacceptable product in the production run.

The present invention compared with prior art has the following advantages:

1, for front axle production provides a kind of highly versatile, can detect the detection technique of many kinds front axle drop, can accurately measure the concrete size of drop,, effectively reduce because the rejection rate that the drop dimension overproof causes for adjustment provides concrete data;

2, can convenient, fastly detect in the production scene, reduce 20 minutes/class adjustment time of cubing in the testing process, the workman detects labour intensity and reduces by 50%;

3, reduce the cubing cost of manufacture, can practice thrift 60,000 yuan of cubing input costs every year.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is described further.

Fig. 1 is that the present invention detects the application sketch behind front axle roughing fist face;

Fig. 2 is that the present invention detects the application sketch behind front axle finishing fist face;

Fig. 3 is the structure diagram of the present invention's thick drop cubing when being applied in roughing fist face;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is the structure diagram of the present invention's smart drop cubing when being applied in finishing fist face.

Embodiment

Like Fig. 1, Fig. 3, shown in Figure 4; The check-out console 2 of Rough Inspection device is supported on the leaf spring face of front axle 3; Check-out console 2 bottoms of two Rough Inspection devices are connected with dull and stereotyped 1 through key, keyway and T type screw, can conveniently adjust spacing between the check-out console 2 of two Rough Inspection devices, to adapt to the detection of different cultivars front axle; The V-block 10 of thick drop cubing 4 links to each other with location-plate 13 through screw 11, pin 12; Insert 9 for nut,, be spun in the threaded hole of location-plate 13 for two first with location-plate 13 threaded engagement; Two first magnet 8 is set in first and inserts in 9; Survey pin 7 and be connected with location-plate 13, adopt V-block 10 to locate through pin-and-hole, simulate and extend rough mill after fist face center.During detection; The check-out console 2 of Rough Inspection device is supported on the leaf spring face of front axle 3; V-block 10 is stuck in the outer edge surface of front axle fist, and cubing can firmly be adsorbed on the part upper surface during measurement, the height K of check-out console, pin top and location-plate bottom surface be known fixed value apart from distance P between Q, the fist upper and lower end face; Only need utilize height gauge measure pin top and check-out console bottom surface apart from M; Indirect calculation goes out behind the roughing front axle fist face fist face and leaf spring identity distance from (drop) size L (K-M+P+Q), in the practical application tolerance value of drop L is converted to the tolerance value of M, only needs a control M value tolerance to get final product in the production; Measure back rotation first and insert 9, can easily take down thick drop cubing 4.

Like Fig. 2, shown in Figure 5; The check-out console 17 of smart checking device is supported on the leaf spring face of front axle 3; Check-out console 17 bottoms of two smart checking devices are connected with dull and stereotyped 1 through key, keyway and T type screw, can conveniently adjust spacing between the check-out console 17 of two smart checking devices, to adapt to the detection of different cultivars front axle; Two second of smart drop cubing 6 insert and 16 are nut, are spun in the threaded hole of notch cuttype locating shaft 14 round platforms, and two second magnet 15 is set in second and inserts in 16.During detection, the check-out console 17 of smart checking device is supported on the leaf spring face of front axle 3, locating shaft 14 inserts in the front-axle pivot hole after the finishing; Cubing can firmly be adsorbed on part fist lower surface, accurate centering kingpin bore center, and center and fist hand-deliver point are in virtual a bit; Can't directly measure, can only and extend to the actual point on the smart drop cubing 6, adopt smart checking device this intersection point simulation; Locating shaft through smart drop cubing 6 inserts in the front-axle pivot hole; The height G of check-out console, locating shaft top is known fixed with bottom centre apart from O, only need utilize height gauge measure locating shaft top and check-out console bottom surface apart from I, can calculate finishing after center, front-axle pivot hole leave (drop) size H (G-I+O) with the leaf spring identity distance; In the practical application tolerance value of drop H is converted to the tolerance value of I; Only need control I value tolerance to get final product in the production, measure back rotation nut 15, can easily take down smart drop cubing 6.

Front axle has up to a hundred kinds, and the fist bore dia but has only several kinds of specifications, and when thick, finishing, outer edge surface, the fist bore dia with fist is inspection accessory benchmark respectively, and inspection accessory versatility is strengthened greatly.

Claims

1. general form front axle drop pick-up unit, it is characterized in that: comprise Rough Inspection device and smart checking device, the check-out console of Rough Inspection device (2) is supported on the leaf spring face of front axle (3), and thick drop cubing (4) is stuck in the fist outer edge surface of front axle (3); The check-out console (17) of smart checking device is supported on the leaf spring face of front axle (3), and smart drop cubing (6) penetrates in the kingpin bore of front axle (3); First of thick drop cubing (4) insert (9) be contained in the hole of location-plate (13) round platform; First magnet (8) is set in first and inserts in (9); The adjustable v-type piece (10) that is used for centering fist center is stuck in the outer edge surface of front axle (3) fist; V-block (10) links to each other with location-plate (13) through web member, is used to simulate and the survey pin (7) that extends center, front-axle pivot hole is arranged on the center of location-plate (13); Accurately in front axle (3) kingpin bore after the locating shaft (14) of the smart drop cubing in centering front axle (3) kingpin bore center (6) the insertion finishing; Second of smart drop cubing (6) insert (16) be contained in the hole of locating shaft (14) round platform, second magnet (15) is set in second and inserts in (16).

2. general form front axle drop pick-up unit according to claim 1 is characterized in that: the check-out console of said Rough Inspection device (2) is connected with dull and stereotyped (1) through key, keyway and T type screw with check-out console (17) bottom of smart checking device.

3. general form front axle drop pick-up unit according to claim 1; It is characterized in that: first magnet (8) and first is inserted (9) for two or more; First inserts (9) for nut, with location-plate (13) threaded engagement, second magnet (15) and second insert (16) be two or more; Second inserts (16) for nut, with locating shaft (14) threaded engagement.