CN103884309A - Servo pressurizing based depth measuring mechanism capable of variable pitch adjustment - Google Patents
Servo pressurizing based depth measuring mechanism capable of variable pitch adjustment Download PDFInfo
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- CN103884309A CN103884309A CN201210562937.9A CN201210562937A CN103884309A CN 103884309 A CN103884309 A CN 103884309A CN 201210562937 A CN201210562937 A CN 201210562937A CN 103884309 A CN103884309 A CN 103884309A
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 65
- 238000007667 floating Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 230000001808 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 230000000875 corresponding Effects 0.000 claims description 5
- 238000009530 blood pressure measurement Methods 0.000 abstract 3
- 239000000428 dust Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The invention relates to a device for measuring the depth between a differential bearing in an automobile gearbox and the contact surface of a gearbox housing and a dust-proof cover, and specifically relates to a servo pressurizing based depth measuring mechanism capable of variable pitch adjustment. The mechanism comprises a servo pressure measurement portion and a variable pitch adjustment portion. The variable pitch adjustment portion comprises a displacement cylinder, a linear guide rail and a displacement connection board. The servo pressure measurement portion is installed on the displacement connection board and is driven to perform reciprocating motion on the linear guide rail through the displacement cylinder. The servo pressure measurement portion comprises a servo motor, a decelerator, a ball screw, a connection frame, a floating adjustment portion, a pressure sensor, a connection shaft, a displacement sensor, a pressure head and a measurement pressure head. The servo motor is connected with the ball screw through the decelerator. One end of the connection frame is in threaded connection with the ball screw. The other end of the connection frame is successively connected with the floating adjustment portion, the pressure sensor, the connection shaft, the pressure head and the measurement pressure head. The mechanism provided by the invention has the advantages of adjustable measuring pressure, diversified suitable models, reliable work and the like.
Description
Technical field
The present invention relates in automobile gearbox the measuring equipment of the degree of depth between differential bearing and gear box casing and dust cap surface of contact, the depth survey mechanism that specifically a kind of variable-distance based on servo pressurization regulates.
Background technology
Differential mechanism as to its both sides semiaxis transferring power and ensure its both sides semiaxis can different rotating speeds the core component of rotation, be extensively present in all types of wheel boxes; Due to the specific function of differential mechanism, its assembling is had to strict requirement.Due to the restriction of processing technology, in practical set, can not ensure that differential bearing top dust cap just in time props up differential bearing, need to lay corresponding pad and regulate, and the thickness of pad directly affects the correct work of differential mechanism.So, for the depth survey work between differential bearing in automobile gearbox and gear box casing and dust cap surface of contact, very high requirement has been proposed.
For the depth survey work between differential bearing in automobile gearbox and gear box casing and dust cap surface of contact, traditional for differential bearing pressurization surveying work, after conventionally being pressurizeed by direct weighting modes such as cylinder pressurizations, measure.These traditional approachs apply out of true for pressure, can not regulate and control, and the traditional approach wheel box input shaft distance of input torque that locates when measuring is fixing, so just defines measuring mechanism and only can be suitable for the depth survey of surface of contact between differential bearing and gear box casing and dust cap in a kind of model automobile gearbox.
Summary of the invention
The deficiency existing for the depth survey mode between differential bearing and gear box casing in orthodox car wheel box and dust cap surface of contact, the depth survey mechanism that the object of the present invention is to provide a kind of variable-distance based on servo pressurization to regulate.
The object of the invention is to be achieved through the following technical solutions:
The present invention includes servo pressure measure portion and displacement and regulate part, wherein displacement adjusting portion is divided and is comprised displacement cylinder, line slideway and displacement web joint, servo pressure measure portion is arranged on displacement web joint, is driven on line slideway and is moved back and forth by displacement cylinder; Described servo pressure measure portion comprises servomotor, speed reduction unit, ball-screw, connecting frame, floating regulates part, pressure transducer, coupling shaft, displacement transducer, pressure head and measure pressure head, servomotor is connected with ball-screw by speed reduction unit, one end of connecting frame is threaded with ball-screw, the other end is connected with one end of the adjusting part of floating, the described unsteady other end that regulates part is connected with one end of coupling shaft by pressure transducer, the other end of coupling shaft is connected with respectively pressure head and measures pressure head, and displacement transducer is installed on pressure head; The power that described servomotor is exported by speed reduction unit is converted into rotation by ball-screw and connecting frame the rectilinear motion that floats and regulate part, pressure transducer, coupling shaft, displacement transducer, pressure head and measure pressure head.
Wherein: described displacement regulates part also to comprise limiting cylinder and spacing voussoir, this spacing voussoir is connected with the output terminal of limiting cylinder, the side of described displacement web joint is provided with the wedge groove corresponding with described spacing voussoir, after described displacement cylinder drives servo pressure measure portion to move into place, described spacing voussoir is driven and is headed in described wedge groove by limiting cylinder; Described servomotor and speed reduction unit are arranged on displacement web joint by support frame, ball-screw is installed in the upper end of support frame to be supported, one end of described ball-screw is supported and is passed by ball-screw, is connected, is driven ball-screw to rotate by servomotor and speed reduction unit by shaft coupling with the output terminal of speed reduction unit; Described connecting frame is positioned at support frame, and the other end of connecting frame is divided and is connected with described unsteady adjusting portion by ball spline, and described ball spline is passed by displacement web joint; The bottom surface of described pressure head has groove, measures pressure head and is positioned at this groove, and the diameter of described measurement pressure head is less than the diameter of pressure head, and the bottom of measuring pressure head is by exposing in described groove; Described unsteady adjusting portion is divided and is comprised upper plate, spring, joint pin, floating junction and lower plate, wherein upper plate is connected with connecting frame by ball spline, lower plate is connected with coupling shaft by described pressure transducer, described joint pin is between upper plate and lower plate, and on joint pin, cover has spring; Described floating junction is between upper plate and lower plate, and two ends connect respectively ball spline, pressure transducer; Described joint pin is four, and every joint pin is passed by upper plate and lower plate respectively, and one end of joint pin is positioned at upper plate top, and the other end is positioned at the bottom of lower plate and by nut lock; On every joint pin, all cover has spring, and the two ends of each spring are connected to respectively on upper plate and lower plate.
Advantage of the present invention and good effect are:
1. the present invention is meeting under the condition of technological requirement and mechanical property, avoids unnecessary design, and integrates several functions in same mechanism, has reduced cost.
2. project organization of the present invention is reasonable, under the condition realizing, there is no unnecessary structure at assurance function, simple in structure.
3. the present invention, by servomotor control, can regulate and control the pressure acting on differential bearing.
4. the present invention can change the distance of measurement pressure head with respect to wheel box input shaft, thereby reaches the object of displacement, can meet the differential bearing of different model variator to the depth survey requirement of wheel box and corresponding end cap surface of contact.
5. the present invention, without operator's manual work in to range, has ensured the accurate of measurement, and has reduced manual working, simple to operate.
Brief description of the drawings
Fig. 1 is one-piece construction front view of the present invention;
Fig. 2 is one-piece construction left view of the present invention;
Fig. 3 is one-piece construction vertical view of the present invention;
Fig. 4 is that dust cap is arranged on the structural representation on gear box casing;
Wherein: 1 is shaft coupling, 2 is ball-screw support, 3 is ball-screw, 4 is ball spline, 5 is coupling shaft, 6 is displacement transducer, 7 is pressure head, 8 for measuring pressure head, 9 is servomotor, 10 is speed reduction unit, 11 is connecting frame, 12 is support frame, 13 is displacement web joint, 14 regulate part for floating, 141 is upper plate, 142 is spring, 143 is joint pin, 144 is floating junction, 145 is lower plate, 15 is pressure transducer, 16 is limiting cylinder, 17 is displacement cylinder, 18 is spacing voussoir, 19 is line slideway, 20 is gear box casing, 21 is dust cap, 22 is differential bearing, 23 is pad, 24 is surface of contact, 25 is wedge groove.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figures 1 to 3, the present invention includes servo pressure measure portion and displacement and regulate part, wherein displacement adjusting portion is divided and is comprised limiting cylinder 16, displacement cylinder 17, spacing voussoir 18, line slideway 19 and displacement web joint 13, limiting cylinder 16, displacement cylinder 17 and line slideway 19 are arranged on respectively on sheet selection machine, the output terminal of displacement cylinder 17 is connected with displacement web joint 13, drives displacement web joint 13 to move back and forth on line slideway 19; Servo pressure measure portion is arranged on displacement web joint 13, is driven on line slideway 19 and is moved back and forth by displacement cylinder 17 with displacement web joint 13.Spacing voussoir 18 is connected with the output terminal of limiting cylinder 16, the side of displacement web joint 13 is provided with the wedge groove 25 corresponding with spacing voussoir 18, after displacement cylinder 17 drives servo pressure measure portion to move into place, spacing voussoir 18 is driven and is headed in described wedge groove 25 by limiting cylinder 16, completes the locking position to entire depth measuring mechanism.
Servo pressure measure portion comprises servomotor 9, speed reduction unit 10, ball-screw 3, connecting frame 11, support frame 12, ball spline 4, float and regulate part 14, pressure transducer 15, coupling shaft 5, displacement transducer 6, pressure head 7 and measurement pressure head 8, servomotor 9 and speed reduction unit 10 are arranged on displacement web joint 13 by support frame 12, ball-screw is installed in the upper end of support frame 12 and supports 2, one end (upper end) of ball-screw 3 is supported 2 by ball-screw and is passed, be connected with the output terminal of speed reduction unit 10 by shaft coupling 1, drive ball-screw 3 to rotate by servomotor 9 and speed reduction unit 10, the other end (lower end) of ball-screw 3 is threaded with one end (upper end) of continuous frame 11, connecting frame 11 is positioned at support frame 12, the other end (lower end) of continuous frame 11 connects one end (upper end) of ball spline 4, the other end (lower end) of ball spline 4 is passed by displacement web joint 13, being connected to floats regulates one end (upper end) of part 14, float and regulate the other end (lower end) of part 14 to be connected with one end (upper end) of coupling shaft 5 by pressure transducer 15, the other end (lower end) of coupling shaft 5 is connected with respectively pressure head 7 and measures pressure head 8, displacement transducer 6 is installed on pressure head 7.The bottom surface of pressure head 7 has groove, measures pressure head 8 and is positioned at this groove, and the diameter of measuring pressure head 8 is less than the diameter of pressure head 7, and the bottom of measuring pressure head 8 is by exposing in groove.The power that servomotor 9 is exported by speed reduction unit 10 is converted into rotation by ball-screw 3 and connecting frame 11 rectilinear motion that floats and regulate part 14, pressure transducer 15, coupling shaft 5, displacement transducer 6, pressure head 7 and measure pressure head 8.
Float and regulate part 14 to comprise upper plate 141, spring 142, joint pin 143, floating junction 144 and lower plate 145, wherein upper plate 141 is connected with connecting frame 11 by ball spline 4, lower plate 145 is connected with coupling shaft 5 by pressure transducer 15, joint pin 143 is four, all between upper plate 141 and lower plate 145, the axial cross section of every joint pin 143 is T-shape, passed by upper plate 141 and lower plate 145 respectively, one end (upper end) of joint pin 143 is positioned at upper plate 141 tops, the other end (lower end) is positioned at the bottom of lower plate 145, and by nut lock, on every joint pin 143, all cover has spring 142, the two ends of each spring 142 to be connected to respectively the lower surface of upper plate 141 and the upper surface of lower plate 145, floating junction 144 is between upper plate 141 and lower plate 145, and two ends connect respectively ball spline 4, pressure transducer 15.Pressure transducer 15 and displacement transducer 6 are connected with control system (control system of the present invention is prior art) respectively.
Depth survey process of the present invention is as follows:
1. displacement cylinder 17 is worked, and drives servo pressure measure portion to walk to after desired location along line slideway 19, and displacement cylinder 17 quits work; Drive servo pressure measure portion to complete surface level rectilinear motion by displacement cylinder 17, change the distance of measurement pressure head 8 with respect to wheel box input shaft, thereby reach the object of displacement;
2. limiting cylinder 16 is worked, and the spacing voussoir 18 that band is automatically connected in output terminal stretches out, and spacing voussoir 18 is headed in the wedge groove 25 on displacement web joint 13, completes the locking position to servo pressure measure portion; Be parked in and set the position that meets different model wheel box input shaft and the requirement of differential mechanism different distance by gear by the flexible guarantee depth survey mechanism of limiting cylinder 16;
3. servomotor 9 is worked, by speed reduction unit 10 outputting powers, the ball screw assembly, that drives ball-screw 3 to form by ball-screw 3 and connecting frame 11, exports by servomotor 9 the axial rectilinear movement that being converted into floats regulates part 14, pressure transducer 15, coupling shaft 5, displacement transducer 6, pressure head 7 and measure pressure head 8;
4. first pressure head 7 contacts with the surface of contact 24 of gear box casing 20 and dust cap 21, makes depth survey mechanism entirety no longer descending, but servomotor 9 works on, and now measures pressure head 8 and continues descending;
5. measure pressure head 8 and contact with differential bearing 22, produce pressure, by pressure transducer 15 perception, and judge whether to meet setup pressure value by control system, be relaxed by precompressed displacement transducer 6 simultaneously;
If 6. force value does not meet setting value, servomotor 9 works on, and measures pressure head 8 and continues to move down increase pressure; If force value meets setting value, servo electric 9 machines stop output;
7. measure the descending amount of pressure head 8 and be the path increment that displacement transducer 6 is relaxed, by just obtaining under authorised pressure condition doing difference with pre compressed magnitude, differential bearing 22 is to the degree of depth between gear box casing 20 and the surface of contact 24 of dust cap 21, feed back again the depth value of dust cap 21 insertion ends by detecting dust cap 21 equipment, just can try to achieve the one-tenth-value thickness 1/10 of required pad 23;
8. servomotor 9 counter-rotation, drive depth survey mechanism entirety to get back to initial position, complete surveying work.
By servomotor 9, speed reduction unit 10 and ball-screw 3 interoperation servocontrol are measured the volume under pressure of pressure head 8, because servomotor 9 can accurately be controlled the rotation of motor, coordinate ball-screw 3 that rotation is converted into rectilinear motion, thereby transfer servocontrol rectilinear motion to by servocontrol, and straight-line displacement is after measurement pressure head 8 contacts with differential bearing 22, the snap-in force of pressure head 8 for differential bearing 22 measured in impact, so having controlled indirectly, servomotor 9 measures the pressure controlling of pressure head 8 for differential bearing 22, the size of servocontrol force value as requested.
The present invention is in measured automobiles wheel box between differential bearing 22 and gear box casing 20 and dust cap 21 when the degree of depth of surface of contact 24, can regulate and control to put on the pressure on differential bearing 22 in wheel box, and during for measurement, the wheel box input shaft distance of input torque is adjustable, effectively solve between the differential bearing 22 of wheel box and dust cap 21 depth pressure adjustable, with the measurement requirement of wheel box input shaft distance variable; In measurement, avoid the artificial manually participation of operator, reach high precision and the objectivity of measurement.
Floating junction of the present invention is commercial product, purchases the company in Japanese SMC, and model is JAF80-22-150; Ball spline is commercial product, purchases in Shaanxi Hanjiang machine Tool Co., Ltd., and model is HKGJ-F40.
Claims (6)
1. the depth survey mechanism that the variable-distance based on servo pressurization regulates, it is characterized in that: comprise that servo pressure measure portion and displacement regulate part, wherein displacement adjusting portion is divided and is comprised displacement cylinder (17), line slideway (19) and displacement web joint (13), it is upper that servo pressure measure portion is arranged on displacement web joint (13), driven and moved back and forth on line slideway (19) by displacement cylinder (17), described servo pressure measure portion comprises servomotor (9), speed reduction unit (10), ball-screw (3), connecting frame (11), float and regulate part (14), pressure transducer (15), coupling shaft (5), displacement transducer (6), pressure head (7) and measurement pressure head (8), servomotor (9) is connected with ball-screw (3) by speed reduction unit (10), one end of connecting frame (11) is threaded with ball-screw (3), the other end is connected with one end of the adjusting part (14) of floating, the described unsteady other end that regulates part (14) is connected with one end of coupling shaft (5) by pressure transducer (15), the other end of coupling shaft (5) is connected with respectively pressure head (7) and measures pressure head (8), displacement transducer (6) is installed on pressure head (7), described servomotor (9) is converted into rotation by ball-screw (3) and connecting frame (11) rectilinear motion that floats and regulate part (14), pressure transducer (15), coupling shaft (5), displacement transducer (6), pressure head (7) and measure pressure head (8) by the power of speed reduction unit (10) output.
2. by the depth survey mechanism of the adjusting of the variable-distance based on servo pressurization described in claim 1, it is characterized in that: described displacement regulates part also to comprise limiting cylinder (16) and spacing voussoir (18), this spacing voussoir (18) is connected with the output terminal of limiting cylinder (16), the side of described displacement web joint (13) is provided with the wedge groove (25) corresponding with described spacing voussoir (18), after described displacement cylinder (17) drives servo pressure measure portion to move into place, described spacing voussoir (18) is driven and is headed in described wedge groove (25) by limiting cylinder (16).
3. by the depth survey mechanism of the adjusting of the variable-distance based on servo pressurization described in claim 1, it is characterized in that: described servomotor (9) and speed reduction unit (10) are arranged on displacement web joint (13) by support frame (12), ball-screw is installed in the upper end of support frame (12) and supports (2), one end of described ball-screw (3) is supported (2) by ball-screw and is passed, and is connected, is driven ball-screw (3) to rotate by servomotor (9) and speed reduction unit (10) by shaft coupling (1) with the output terminal of speed reduction unit (10); Described connecting frame (11) is positioned at support frame (12), and the other end of connecting frame (11) is connected with described unsteady adjusting part (14) by ball spline (4), and described ball spline (4) is passed by displacement web joint (13).
4. by the depth survey mechanism of the adjusting of the variable-distance based on servo pressurization described in claim 1, it is characterized in that: the bottom surface of described pressure head (7) has groove, measure pressure head (8) and be positioned at this groove, the diameter of described measurement pressure head (8) is less than the diameter of pressure head (7), and the bottom of measuring pressure head (8) is by exposing in described groove.
5. by the depth survey mechanism of the adjusting of the variable-distance based on servo pressurization described in the arbitrary claim of claim 1 to 4, it is characterized in that: described unsteady adjusting part (14) comprises upper plate (141), spring (142), joint pin (143), floating junction (144) and lower plate (145), wherein upper plate (141) is connected with connecting frame (11) by ball spline (4), lower plate (145) is connected with coupling shaft (5) by described pressure transducer (15), described joint pin (143) is positioned between upper plate (141) and lower plate (145), there is spring (142) at the upper cover of joint pin (143), described floating junction (144) is positioned between upper plate (141) and lower plate (145), and two ends connect respectively ball spline (4), pressure transducer (15).
6. by the depth survey mechanism of the adjusting of the variable-distance based on servo pressurization described in claim 5, it is characterized in that: described joint pin (143) is four, every joint pin (143) is passed by upper plate (141) and lower plate (145) respectively, one end of joint pin (143) is positioned at upper plate (141) top, and the other end is positioned at the bottom of lower plate (145) and by nut lock; On every joint pin (143), all cover has spring (142), the two ends of each spring (142) to be connected to respectively on upper plate (141) and lower plate (145).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562937.9A CN103884309A (en) | 2012-12-21 | 2012-12-21 | Servo pressurizing based depth measuring mechanism capable of variable pitch adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562937.9A CN103884309A (en) | 2012-12-21 | 2012-12-21 | Servo pressurizing based depth measuring mechanism capable of variable pitch adjustment |
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| CN103884309A true CN103884309A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210562937.9A Pending CN103884309A (en) | 2012-12-21 | 2012-12-21 | Servo pressurizing based depth measuring mechanism capable of variable pitch adjustment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106239265A (en) * | 2016-08-03 | 2016-12-21 | 太仓市伦凯自动化设备有限公司 | A kind of hole location detecting mechanism of automatic tapping machine |
| CN106403882A (en) * | 2016-12-01 | 2017-02-15 | 无锡明珠钢球有限公司 | Hole depth automation measurement device |
| CN108050927A (en) * | 2017-12-08 | 2018-05-18 | 湖北省农业机械工程研究设计院 | Paddy field Ni Jiao depth surveys robot |
| CN111922764A (en) * | 2020-09-22 | 2020-11-13 | 维嘉数控科技（苏州）有限公司 | Depth-controlled milling compensation depth detection mechanism and circuit board depth-controlled milling device |
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| CN101441071A (en) * | 2008-12-31 | 2009-05-27 | 安徽巨一自动化装备有限公司 | Differential gear pad-choosing measuring system and measuring method |
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2012
- 2012-12-21 CN CN201210562937.9A patent/CN103884309A/en active Pending
Patent Citations (3)
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| CN201096184Y (en) * | 2007-09-08 | 2008-08-06 | 辽宁曙光汽车集团股份有限公司 | Main reducing gear assembly automobile drive bridge assembly for establishing bearing pretightening |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239265A (en) * | 2016-08-03 | 2016-12-21 | 太仓市伦凯自动化设备有限公司 | A kind of hole location detecting mechanism of automatic tapping machine |
| CN106403882A (en) * | 2016-12-01 | 2017-02-15 | 无锡明珠钢球有限公司 | Hole depth automation measurement device |
| CN108050927A (en) * | 2017-12-08 | 2018-05-18 | 湖北省农业机械工程研究设计院 | Paddy field Ni Jiao depth surveys robot |
| CN111922764A (en) * | 2020-09-22 | 2020-11-13 | 维嘉数控科技（苏州）有限公司 | Depth-controlled milling compensation depth detection mechanism and circuit board depth-controlled milling device |
| CN111922764B (en) * | 2020-09-22 | 2021-01-12 | 维嘉数控科技（苏州）有限公司 | Depth-controlled milling compensation depth detection mechanism and circuit board depth-controlled milling device |
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Application publication date: 20140625 |