CN205373613U - Poor special detection device of 120 graduation of star gear raceway in concertina type rzeppa universal joint - Google Patents
Poor special detection device of 120 graduation of star gear raceway in concertina type rzeppa universal joint Download PDFInfo
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- CN205373613U CN205373613U CN201620106639.2U CN201620106639U CN205373613U CN 205373613 U CN205373613 U CN 205373613U CN 201620106639 U CN201620106639 U CN 201620106639U CN 205373613 U CN205373613 U CN 205373613U
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Abstract
The utility model belongs to the technical field of machining detects special tooling design, a poor special detection device of 120 graduation of star gear raceway in concertina type rzeppa universal joint is disclosed, including interior star gear part, fixed steel ball part and activity steel ball part, interior star gear part top sets up a cylindricality boss, fixed steel ball part is 120 with activity steel ball part and sets up, the fixed steel ball of fixed steel ball part and the cooperation of the raceway of interior star gear, set up the loose axle in the axle bed of activity steel ball part, the front end of loose axle sets up movable steel ball, the loose axle will move about through a thrust mechanism in the corresponding raceway of including the best cooperation of steel ball star gear, the epaxial percentage table of activity shows the measured value. The utility model discloses novelty ground with the three -dimensional appearance change in laboratory for the special inspection frock that production site used, measure with the judgement method simply, detect fastly, the requirement is hanged down to measurement personnel technical ability.
Description
Technical field
This utility model belongs to machining detection special tooling design field, particularly 120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway.
Background technology
Referring to accompanying drawing 1, the inner race 104(of concertina type Rzeppa constant velocity (also referred to as VL type) universal joint is also referred to as star-wheel) it is connected with driving shaft 105 with internal spline, its outer surface has six cylinder grooves to form interior raceway, and the inner surface of cylindrical outer casing 101 has corresponding six cylinder grooves to form outer raceway.These track centre line are not parallel with axis, but tilt relative to axis with identical angle, and on Same Part, the incline direction of adjacent two raceways is contrary, namely V-shaped.After dress closes, the incline direction of the inside and outside raceway of same circumferential position is just contrary, i.e. symmetrical chiasma, and 6 steel balls 103 are then in the crossover sites of inside and outside raceway, and by cage 102 so as to what be maintained at the between centers angle of cut divides equally on face, to ensure that constant velocity tramsmission made by universal joint.Power is exported through star-wheel 104, steel ball 103 and cylindrical outer casing 101 by driving shaft 105.In transmission torque process, star-wheel 104 and cylindrical outer casing 101 realize axially opposing movement by steel ball 103 along inside and outside rolling path rolling, save the free-sliding spline must having in other universal driving device, this not only makes structure simplify, compared with free-sliding spline, its resistance to rolling is little, and transmission efficiency is high.
Referring to accompanying drawing 2-6, the outer surface of star-wheel has six cylinder grooves to form outer raceway, track centre line tilts relative to axis with identical angle, and the incline direction of adjacent two raceways is contrary, it is 120 ° all the time being arbitrarily perpendicular on the cross section of axis to be separated by the angle of two raceway centers and the line of centres of circle.Article six, raceway is only uniform on System planes B-B, and System planes B-B and the assembly relation of cylindrical outer casing and the System planes existence anduniquess of cage are uniform to guarantee two ends angular velocity change, and it is virtual plane, and relative size can not directly be measured；Two measurement lines of 120 ° of deciles are also virtual centrages simultaneously, also cannot directly measure its angle value.
Generally using three-coordinates measuring machine measurement in prior art and evaluate, three-coordinates measuring machine gathers the respective point of product by working out process of measurement, and the software of himself can simulate and calculate final result, and certainty of measurement is high.But equipment price is expensive；Environment (epidemic disaster) is required higher；Need special messenger to program, operator are required height；The detection time is long, it is impossible to quickly measure application suitable in production on-site environment.
Summary of the invention
The purpose of this utility model is to solve above-mentioned technical problem, it is provided that for 120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway of production scene, detect simple to operate, intuitively effectively.
This utility model adopts the technical scheme that:
null120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway，It is characterized in that，Including star-wheel parts、Stationary balls parts and movable steel ball part，Described star-wheel parts are fixed on support，Described star-wheel parts are provided above a cylindrical end tangs，The upper surface of described cylindrical end tangs arranges described star-wheel，Described stationary balls parts and movable steel ball part are 120 ° is arranged on the side of described star-wheel parts，Described stationary balls parts are fixedly installed on the bracket，The front end of described stationary balls parts arranges stationary balls，Described stationary balls coordinates with the raceway of star-wheel，Described movable steel ball part includes the axle bed being fixedly installed on the bracket，In described axle bed, movable axis is set，The front end of described movable axis arranges movable steel ball，Described movable axis by thrust mechanism by described movable steel ball best fit in the corresponding raceway of star-wheel，Described movable axis arranges dial gauge，Described dial gauge records six data of 120 ° of calibration differences of star-wheel raceway，The mutual difference of these data is exactly 120 ° of error of division values of star-wheel raceway.
Further, described movable steel ball part includes the key seat being fixedly installed on described axle bed, in described key seat, distribution is set by compression spring, axle bed below described movable axis arranges rotatable handles by bearing pin, the through hole that described handle is offered on described movable axis, the front end of described distribution is pushed against the upper part of described handle, when described handle is free, described distribution promotes described hands handle due to elastic force, described movable axis is moved to star-wheel direction, by movable steel ball best fit in the corresponding raceway of star-wheel, when described distribution direction pushed to by described handle, the spring-compressed of described distribution, described movable axis drives described movable steel ball to leave the raceway of star-wheel.
Further, described stationary balls parts include the fixing axle being arranged in fixing axle bed, and the rear end of described fixing axle arranges fine setting screw thread for regulating described fixing axle.
Further, described stationary balls parts and movable steel ball part all offer kidney slot, can be regulated by described kidney slot and fix described stationary balls parts and movable steel ball part position on the bracket.
Further, described cylindrical end tangs is tungsten steel block, and the endoporus arranging bocca, described bocca and described star-wheel in described cylindrical end tangs matches.
Further, the height of described stationary balls and movable steel ball is equal.
Further, the height between upper surface and the centre of sphere of described stationary balls and movable steel ball of described cylindrical end tangs is the System planes height of star-wheel.
The beneficial effects of the utility model are:
(1) measuring and determination methods is simple, detection speed is fast, and testing staff's skill set requirements is low.
(2) simple in construction, firm and durable is low to environmental requirement；
(3) change the tungsten steel block of different-thickness and the steel ball of different-diameter, utilize the position of the fixing axle bed of kidney slot adjustment and movable axle bed, the star-wheel of multi-specification can be measured, significantly reduce manufacturing cost；
(4) accuracy of detection error is 1 ', examined product qualification rate reaching 100%, can meet the requirement that auto parts are produced in enormous quantities.
Accompanying drawing explanation
Accompanying drawing 1 is concertina type ball-and-cage constant velocity joint structural representation；
Accompanying drawing 2 is the structure schematic top plan view of star-wheel；
Accompanying drawing 3 is A-A sectional view in accompanying drawing 2；
Accompanying drawing 4 is B-B sectional view in accompanying drawing 3；
Accompanying drawing 5 be in accompanying drawing 4 C to revolved view；
Accompanying drawing 6 is the perspective view of star-wheel；
Accompanying drawing 7 is star-wheel error of division Cleaning Principle schematic diagram；
Accompanying drawing 8 is the schematic top plan view of the special detection device of the present invention；
Accompanying drawing 9 is the schematic side view of the special detection device of the present invention；
Accompanying drawing 10 is the perspective view of the special detection device of the present invention.
Labelling in accompanying drawing is respectively as follows:
1. foot-screw；2. round nut；
3. support；4. adjust packing ring；
5. reference axis；6. screw；
7. directed block；8. fixing axle bed；
9. steel ball；10. movable axis；
11. movable axle bed；12. handle；
13. promote；14. compression spring；
15. key seat；16. screw；
17. nut；18. plain washer；
19. gage button arm；20. screw；
21. dive key；22. bearing pin；
23. tungsten steel block；24. screw；
25. fixing axle；26. compression spring；
27. adjusting nut；28. round nut；
29. shaft block ring；30. screw；
31. screw；32. gage button；
33. dial gauge；34. bocca；
101. cylindrical outer casing；102. cage；
103. steel ball；104. inner race；
105. driving shaft.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of this utility model concertina type 120 ° of calibration difference special detection devices of ball-and-cage constant velocity joint star-wheel raceway is elaborated.
Referring to accompanying drawing 2 to 7, because six raceways of star-wheel are only uniform on System planes B-B, the angle ∠ AOB of the line of centres of two raceway center and circles in the same direction of being separated by System planes B-B is 120 °, angle deviating requires as ± 12 ', in Fig. 7, OC and OD represents the line of centres of deviation positive 12 ' and negative 12 ' respectively.Centered by A point, rotate AC and trunnion axis X and meet at C1 point, rotate AD and hand over X-axis in D1 point, then angular deviation ± 12 ' are converted into the difference C1D1 of horizontal range.
The principle of the difference C1D1 of horizontal range it is converted into according to above-mentioned angular deviation ± 12 ', calculate final result as follows: because C1 and D1 is with A point for the center of circle, rotate AC and AD and intersect at the intersection point of trunnion axis X, so obtain intersection point C2 and D2 to the horizontal line crossing A point as vertical line respectively from C1 and D1, then C1D1=C2D2=AD2-AC2.
In right angled triangle AC1C2, AC2=;
In isosceles triangle ACC1, AC=AC1；
In isosceles triangle AOC, ∠ OAC==30+;
AC=2*OAcos ∠ OAC=2Rcos (30+) (OA is radius R);
Intersection point C3 and C4 is obtained to the horizontal line crossing A point and trunnion axis X as vertical line respectively, then from C point
C1C2=CC4+CC3；
In right angled triangle COC4, CC4=OCsin θ=Rsin θ (OC is radius R);
∠CAC3=∠OAC3-∠OAC=(180-120)-(30+)=30-;
In right angled triangle CAC3, CC3=ACsin ∠ CAC3=2Rcos (30+)sin(30-);
Then AC2=;
In like manner AD2=；
C1D1=0.004R is obtained after substituting into θ=12'=0.2 °.
According to above-mentioned theory, calibration difference special detection device arranges stationary balls parts, a movable steel ball part and star-wheel parts, is all placed on support.The axis of movable steel ball part is horizontal direction, and the axis of stationary balls parts and horizontal direction angle are 120 °, and the axis of star-wheel parts is positioned at above-mentioned two axial lines intersection point O.
Star-wheel parts, are fixed on support through the intermediate throughholes adjusted on packing ring and support with nut by reference axis；Arranging cylindrical end tangs on reference axis, be specially in the groove of reference axis upper end and lay wear-resisting tungsten steel block as cylindrical end tangs, the upper surface of cylindrical end tangs is used for placing star-wheel.The upper surface of cylindrical end tangs also can arrange bocca, for mating with the endoporus of star-wheel, star-wheel is realized Primary Location.
Stationary balls parts are fixed by screws on support by fixing axle bed, fixed hub compresses spring and pierces into the intermediate throughholes of fixing axle bed, one end has used stationary balls threaded, the other end adjusting nut fastening being connected with fixing axle bed screw thread, then with nut secured adjusted nut；Directed block is screwed the steel ball side at fixing axle bed.
Movable steel ball part is bottom screw one dive key of connection at movable axle bed, then is screwed on support by activity axle bed, and dial gauge is screwed on movable axle bed.Movable axis pierces into the intermediate throughholes of movable axle bed, is connected with movable steel ball screw thread；The other end puts gage button arm, fastens with nut after adding packing ring；The spherical matched in clearance of middle through-hole and middle handle.The bottom of handle and bearing pin matched in clearance, pin shaft block ring is fixed on movable axle bed；Top is pushed and holds out against.Distribution is placed in key seat interstitial hole, is connected with compression spring, and is screwed in the intermediate throughholes of key seat；Key seat is screwed at movable axle bed.The part composition thrust mechanisms such as key seat, handle and distribution.
The centre of sphere of stationary balls and movable steel ball is the height of star-wheel System planes B-B with the distance of the upper surface of tungsten steel block in star-wheel parts, handle moves left and right, and the gauge head of dial gauge contacts the centre of sphere horizontal displacement measurement to movable steel ball with the gage button on gage button arm.
Referring to accompanying drawing 8-10, bottom the fixing axle bed 8 of stationary balls parts, raised line correspondence is positioned in the kidney slot of support 3, is fixed on support 3 with screw 24, and support 3 is fixed on work platforms by four foot-screws 1；Fixing axle 25 puts compression spring 26, pierces into the intermediate throughholes of fixing axle bed 8, and the shank threads of steel ball 9 is connected with screwed hole in fixing axle 25；Directed block 7 is fixed on the steel ball side of fixing axle bed 8 with screw 6；Adjusting nut 27 is connected to position fixing axle 25 with fixing axle bed 8 screw thread, and is fastened by round nut 28.
The bottom screw 20 fixed guide flat key 21 of the movable axle bed 11 of movable steel ball part, is directed to flat key 21 correspondence and is positioned in the kidney slot of support 3, with the fixing movable axle bed 11 of screw 24 on support 3；Movable axis 10 pierces into the intermediate throughholes of movable axle bed 11, is connected with the shank threads of steel ball 9；After gage button 32 is connected with gage button arm 19 screw thread, it is enclosed within movable axis 10, fastens with plain washer 18 and nut 17；Dial gauge 33 is fixed on movable axis 10 by screw 31.The intermediate throughholes of movable axis 10 and handle 12 central spherical matched in clearance；Bearing pin 22, through the end intermediate throughholes of handle 12, is placed in the through hole of biside plate of movable axle bed 11, and locks with shaft block ring 29；Promote 13 and push against handle 12, and be connected with compression spring 14, be fixed in the intermediate throughholes of key seat 15 with screw 16；Key seat 15 screw 30 is fastened on movable axle bed 11.
The reference axis 5 of star-wheel parts, through the intermediate throughholes adjusting packing ring 4 and support 3, is fixed on support 3 with round nut 2；Tungsten steel block 23 is placed in the corresponding recesses of reference axis 5, and after grinding, tungsten steel block upper surface to the centre of sphere distance of steel ball 9 is the System planes height h of star-wheel.Being additionally provided with bocca 34 on the upper surface of tungsten steel block 23, bocca 34 is for by star-wheel Primary Location, matched in clearance between bocca 34 and the endoporus of star-wheel.
During measurement, driving handle 12 moves to right along level, and handle 12 rotates with bearing pin 22 for fulcrum, forces distribution 13 retrogressing holddown spring 14, and handle 12 central spherical promotes movable axis 10 to move to right, and the steel ball 9 being connected with movable axis 10 also moves to right therewith；Being enclosed within bocca 34 by tested star-wheel, be placed on tungsten steel block 23 upper surface, a raceway is adjacent to the steel ball 9 on fixing axle bed 8；Release handle 12, spring 14 resets and promotes distribution 13 to move to left, force handle 12 to rotate around bearing pin 22 to move to left, the movable axis 10 and the steel ball 9 that are attached thereto move to left, push up another raceway to star-wheel, star-wheel is forced to rotate, so that another raceway and movable end steel ball 9 are in close contact, now dial gauge 33 just obtains a numerical value and is set to zero；Moving to right handle 12, the steel ball 9 being attached thereto moves to right, and unclamps star-wheel.In like manner measuring another five readings, complete the one-shot measurement process of star-wheel, the mutual difference of these numerical value should be less than 0.004R.
Detection process steps of the present utility model is as follows:
(1) star-wheel to be detected is arranged in cylindrical end tangs；
(2) by rack-mount to stationary balls parts and movable steel ball part, making the fixing axle of stationary balls parts and the movable axis angle of movable steel ball part is 120 °；
(3) adjusting stationary balls parts makes stationary balls coordinate with the raceway of star-wheel；
(4) movable axis making movable steel ball part is free state, and regulates movable steel ball part and make movable steel ball coordinate in corresponding raceway；
(5) regulating dial gauge, make the numerical value of dial gauge be set to predetermined value, predetermined value is set to 0；
(6) drive thrust mechanism, make movable steel ball depart from place raceway；
(7) take out star-wheel and rotate 120 °, repeating (3rd) (4th) step, reading the value of dial gauge；
(8) repeat (6th) (7th) step, measure 5 dial gauge readings；
(9) difference that 5 dial gauge numerical value and predetermined value are compared mutually, it is simply that 120 ° of errors of division of star-wheel raceway.
(10) when the error of division is less than 0.004 times of in System planes six radius of circles that the raceway center of circle is constituted, 120 ° of errors of division of described star-wheel raceway are qualified, are otherwise defective.
In order to reach expection technique effect of the present utility model, this device need to carry out detecting and identifying in strict accordance with the detection acceptance criteria of amount instrument.It is first depending on drawing requirement, checks that whether each drive disk assembly is flexible；Secondly with three-coordinate instrument measurement standard star-wheel exemplar, then detecting this exemplar with above-mentioned special detection device, two groups of data correspondences compared, whether its error amount is in controlled range, in this way, provides the numerical value correction value as measuring basis；Finally need to carry out the repeatability of special detection device and repeatability (GR & R) analysis, analyze result and meet the requirements, demonstrate its correctness.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (7)
- null1. 120 ° of calibration difference special detection devices of a concertina type Rzeppa constant velocity joint star-wheel raceway，It is characterized in that: include star-wheel parts、Stationary balls parts and movable steel ball part，Described star-wheel parts are fixed on support，Described star-wheel parts are provided above a cylindrical end tangs，The upper surface of described cylindrical end tangs arranges described star-wheel，Described stationary balls parts and movable steel ball part are 120 ° is arranged on the side of described star-wheel parts，Described stationary balls parts are fixedly installed on the bracket，The front end of described stationary balls parts arranges stationary balls，Described stationary balls coordinates with the raceway of star-wheel，Described movable steel ball part includes the axle bed being fixedly installed on the bracket，In described axle bed, movable axis is set，The front end of described movable axis arranges movable steel ball，Described movable axis by thrust mechanism by described movable steel ball best fit in the corresponding raceway of star-wheel，Described movable axis arranges dial gauge，Described dial gauge records six data of 120 ° of calibration differences of star-wheel raceway，The mutual difference of these data is exactly 120 ° of calibration differences of star-wheel raceway.
- null2. 120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway according to claim 1，It is characterized in that: described movable steel ball part includes the key seat being fixedly installed on described axle bed，In described key seat, distribution is set by compression spring，Axle bed below described movable axis arranges rotatable handles by bearing pin，The through hole that described handle is offered on described movable axis，The front end of described distribution is pushed against the upper part of described handle，When described handle is free，Described distribution promotes described handle due to elastic force，Described movable axis is moved to star-wheel direction，By described movable steel ball best fit in the corresponding raceway of star-wheel，When described distribution direction pushed to by described handle，The spring-compressed of described distribution，Described movable axis drives described movable steel ball to leave the raceway of star-wheel.
- 3. 120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway according to claim 1, it is characterized in that: described stationary balls parts include the fixing axle being arranged in fixing axle bed, the rear end of described fixing axle arranges fine setting screw thread for regulating described fixing axle.
- 4. 120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway according to any one of claim 1 to 3, it is characterized in that: described stationary balls parts and movable steel ball part all offer kidney slot, can be regulated by described kidney slot and fix described stationary balls parts and movable steel ball part position on the bracket.
- 5. 120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway according to any one of claim 1 to 3, it is characterized in that: described cylindrical end tangs is tungsten steel block, the endoporus arranging bocca, described bocca and described star-wheel in described cylindrical end tangs matches.
- 6. 120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway according to any one of claim 1 to 3, it is characterised in that: the height of described stationary balls and movable steel ball is equal.
- 7. 120 ° of calibration difference special detection devices of concertina type Rzeppa constant velocity joint star-wheel raceway according to claim 6, it is characterised in that: the height between the centre of sphere of the upper surface of described cylindrical end tangs and described stationary balls and movable steel ball is the System planes height of star-wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620106639.2U CN205373613U (en) | 2016-02-03 | 2016-02-03 | Poor special detection device of 120 graduation of star gear raceway in concertina type rzeppa universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620106639.2U CN205373613U (en) | 2016-02-03 | 2016-02-03 | Poor special detection device of 120 graduation of star gear raceway in concertina type rzeppa universal joint |
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| Publication Number | Publication Date |
|---|---|
| CN205373613U true CN205373613U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620106639.2U Withdrawn - After Issue CN205373613U (en) | 2016-02-03 | 2016-02-03 | Poor special detection device of 120 graduation of star gear raceway in concertina type rzeppa universal joint |
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| CN (1) | CN205373613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509620A (en) * | 2016-02-03 | 2016-04-20 | 上海长锐汽车零部件有限公司 | Detection device special for internal star wheel raceway 120-degree indexing difference of telescopic type rzeppa universal joint and detection method |
| CN117128832A (en) * | 2023-10-27 | 2023-11-28 | 万向钱潮股份公司 | Checking fixture for star cover |
-
2016
- 2016-02-03 CN CN201620106639.2U patent/CN205373613U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509620A (en) * | 2016-02-03 | 2016-04-20 | 上海长锐汽车零部件有限公司 | Detection device special for internal star wheel raceway 120-degree indexing difference of telescopic type rzeppa universal joint and detection method |
| CN105509620B (en) * | 2016-02-03 | 2018-01-02 | 上海长锐汽车零部件有限公司 | The poor special detection device of 120 ° of indexing of star-wheel raceway and detection method in concertina type Rzeppa constant velocity joint |
| CN117128832A (en) * | 2023-10-27 | 2023-11-28 | 万向钱潮股份公司 | Checking fixture for star cover |
| CN117128832B (en) * | 2023-10-27 | 2024-01-26 | 万向钱潮股份公司 | Checking fixture for star cover |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160706 Effective date of abandoning: 20180102 |