CN107991383A - Hollow shaft inner wall detection self-adaptive tool and detection method - Google Patents
Hollow shaft inner wall detection self-adaptive tool and detection method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9013—Arrangements for scanning
- G01N27/902—Arrangements for scanning by moving the sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention relates to a hollow shaft inner wall detection self-adaptive tool, which comprises a left support, a right support, a controller, a sensor probe, a circumferential steering mechanism, a radial telescopic swing steering mechanism and an axial moving mechanism, wherein the circumferential steering mechanism comprises a rotating shaft which transversely penetrates through the upper ends of the left support and the right support and a rotating control assembly for driving the rotating shaft to rotate; the radial telescopic swing steering mechanism comprises a first sliding block, a second sliding block and a probe mounting block for mounting a sensor probe; the axial moving mechanism comprises a first axial control component and a second axial control component which are arranged on the rotating shaft; according to the self-adaptive tool provided by the invention, the sensor probe can realize circular rotary motion, axial movement and radial expansion and can keep consistent with the normal direction of the inner wall of the hollow shaft, the inner wall of the hollow shaft can be comprehensively detected by only using one sensor probe, and the self-adaptive tool is low in cost, high in detection precision, simple and reliable.
Description
Technical field
The invention belongs to hollow shaft detection technique field, more particularly to a kind of inner wall of hollow shaft detects adaptive frock and sky
The detection method of mandrel inner wall.
Background technology
Hollow shaft is the pith of aerospace engine passing power, its manufacture is particularly significant with quality testing, empty
The defects of in mandrel if crackle, bubble, then be easy to that fatigue rupture, and then fracture failure occurs at work, cause
Very serious consequence, in addition, aerospace engine is different from automobile, the engine on lathe, once accident occurs, caused by
Loss is huge, so before using hollow shaft, it is necessary to stringent detection is carried out to it, also, each hollow shaft is all
Detect, will be detected everywhere in hollow shaft.And aerospace engine hollow shaft is complicated, inner diameter incomplete one
Cause, this brings difficulty to detection work.
The case of hollow shaft is detected using ultrasonic wave and electromagnetic induction principle at present, but detection object is largely
Hollow shaft on the relatively simple bullet train of structure.Such as the patent of invention that number of patent application is CN105181801A, there is provided
A kind of high ferro hollow shaft ultrasonic no damage detection device, for diameter consistent hollow shaft, is examined using controllable spiral motion
Inner wall of hollow shaft is surveyed, probe movement is steady, this scheme is not just applied to for the inconsistent situation of inner wall of hollow shaft diameter.And for example
Number of patent application is the patent of invention of CN104698073A, discloses a kind of spy for the crackle for being used to detect high ferro train hollow shaft
Hinder device, splitting for hollow shaft is detected by the cell winding being arranged in its coil fixed seat and based on electromagnetic induction principle
Line, is mounted with the cell winding of multiple and different angles on coil fixed seat outer surface, and when use stretches above-mentioned coil fixed seat
Enter and be detected in the internal cavities of high ferro train hollow shaft.The defects of device is the inspection for inner wall of hollow shaft different angle
To survey, employ multiple cell windings, detection carrier occupied space is big, and cost of manufacture is high, for the inconsistent hollow shaft of diameter,
Coil fixed seat is different from the inner wall distance of different-diameter section, influences accuracy of detection.
Therefore, efficiently accurately to detect hollow shaft quality again, invention is a kind of can be with the change of inner wall of hollow shaft diameter
And it is significant to make the hollow shaft quality detection device accordingly adjusted.
The content of the invention
To solve the above-mentioned problems, the present invention provides a kind of inner wall of hollow shaft to detect adaptive frock, and concrete scheme is such as
Under：
A kind of inner wall of hollow shaft detects adaptive frock, including left support abutment, right support abutment, controller, sensor probe, circumference
Steering mechanism, radial expansion swing steering mechanism and axial moving mechanism, wherein, circumference steering mechanism include crossing left support abutment and
The shaft of right support abutment upper end, for driving the rotating rotational control assemblies of shaft；
Radial expansion, which swings steering mechanism, includes the first sliding block, the second sliding block and the probe peace for installing sensor probe
Fill block；First sliding block and the second sliding block be set in shaft and with shaft common rotation, the left end for mounting blocks of popping one's head in and first
Head rod is connected between sliding block, the second connection is connected between the right end for mounting blocks of popping one's head in and the second sliding block
Bar, head rod and the second connecting rod can be rotated relative to shaft, to control the distance between sensor probe and shaft；It is excellent
Selection of land, the center line of the center line of head rod, the center line of the second connecting rod and shaft are co-located in the first plane；
Axial moving mechanism includes being arranged on first axis control assembly in shaft and the second axial control assembly, and first
Axial control assembly is used for the axial movement for controlling the first sliding block along shaft；Second axial control assembly is used to control the second sliding block
Along the axial movement of shaft；First axis control assembly and the second axial control assembly with shaft common rotation.
Rotational control assemblies, first axis control assembly, the second axial control assembly and sensor probe are and controller
It is connected, it is preferable that sensor probe is popped one's head in for current vortex sensor.
Inner wall of hollow shaft provided by the present invention detects adaptive frock, and workpiece locating module is used to position hollow shaft, empty
Mandrel is located among left support abutment and right support abutment, and shaft and the radial expansion in shaft are swung steering mechanism extend into jointly
In hollow shaft, rotational control assemblies drive shaft to be rotated, and sweeping for circumference is carried out to the inner wall of hollow shaft of some fixed position
Detection is retouched, when having detected after a week, the first sliding block and the are controlled by first axis control assembly and the second axial control assembly
The axial movement of two sliding blocks, is moved to next unit displacement jointly, carries out all-round scanning again.
When the mobile position of the first sliding block and the second sliding block of first axis control assembly and the second axial control assembly control
Move different, sensor probe can be controlled to arrive the distance of shaft, to adapt to the hollow shaft of internal diameter change, ensure sensor probe and
The inner wall of different-diameter keeps uniform gap in hollow shaft；Sensor probe can also adjust its angle around vertical direction swing
Degree, it is ensured that sensor probe direction remains consistent with inner wall of hollow shaft normal direction, so as to carry out essence to hollow shaft
True carrying out flaw detection, it is simple in structure, it is of low cost, only just inner wall of hollow shaft can comprehensively be examined with a sensor probe
Survey, while be adapted to the changed hollow shaft of internal diameter, precision is high, and application is more extensive.
From above-mentioned job description, it can arbitrarily drive shaft to carry out rotating rotation along its horizontal center line and control
Component can use, and be limited without excessive；Similarly, the first sliding block and the second sliding block can be arbitrarily controlled to be transported along the axial direction of shaft
Dynamic control mechanism can use, as long as can guarantee that the movement of the first sliding block, be limited without excessive.
Further, rotational control assemblies include the first stepper motor and are arranged at shaft and are pierced by the left end of left support abutment
First synchronizing wheel, the first synchronizing wheel are connected with the output shaft of the first stepper motor by vertical conveyors.
Further, first axis control assembly includes being located at the second stepper motor on the left of shaft and on the right side of shaft
The second synchronizing wheel, the second synchronizing wheel is connected by first level conveyer belt with the output shaft of the second stepper motor；Second axis
Include the 3rd stepper motor on the left of shaft and the 3rd synchronizing wheel on the right side of shaft to control assembly；3rd synchronizing wheel
It is connected by the second horizontal conveying belt with the output shaft of the 3rd stepper motor；First sliding block is connected with first level conveyer belt
Connect, the second sliding block is connected with the second horizontal conveying belt, the second stepper motor, the 3rd stepper motor, the second synchronizing wheel and the 3rd
Synchronizing wheel is respectively positioned among left support abutment and right support abutment.
Movement is controlled using motor and conveyer belt combination, simple in structure, it is convenient to realize, cheap, and accuracy is high.
Further, horizontal motor fixing plate is provided with the left of shaft, vertical synchronization is provided with the right side of shaft
Wheel support, the second stepper motor and the 3rd stepper motor are installed on the both sides up and down of motor fixing plate, and along motor fixing plate
Center is centrosymmetric；Second synchronizing wheel and the 3rd synchronizing wheel are arranged on the both sides up and down of synchronous wheel support, first level transmission
Band and the second horizontal conveying belt are symmetrical with respect to shaft, it is preferable that the horizontal center line of first level conveyer belt, the second horizontal transmission
The horizontal center line of band and the horizontal center line of shaft are co-located in the second plane, and the second plane and the first plane are perpendicular.
Above-mentioned setting can save space, and the structure that another inner wall of hollow shaft detects adaptive frock is more compact, precision into
One step improves, easy to control, and meanwhile it is easy to carry and use, scope applicatory is more extensive.
Further, part of the shaft between left support abutment and right support abutment is provided with horizontal keyway, the first sliding block and
A feather key that can be stretched into horizontal keyway is respectively provided with second slide block set；The upper end of first sliding block and first level conveyer belt
It is fixedly connected, the lower end of the second sliding block is fixedly connected with the second horizontal conveying belt.
Further, workpiece locating module is provided among left support abutment and right support abutment, left support abutment includes vertical first
Support body, and the horizontal support plate positioned at the first support body lower end, horizontal support plate are included on the left of the first support body
Short slab part and the plate portion on the right side of the first support body, plate portion include the platform part in left side and the slide on right side
Portion, the upper surface in slide portion are provided with horizontal slide rail；It is provided with what is be adapted with horizontal slide rail on the bottom surface of workpiece locating module
Horizontal concrete chute.Workpiece locating module is detachably arranged on left socle, can be carried out according to the size of hollow shaft to be detected
Appropriate replacement.
Further, right support abutment includes the second vertical support body, and the level positioned at the second support body lower end
Plate；The height of platform part is more than the height in slide portion, and the height of level board is more than the height in slide portion；Level board and slide portion
Right flank is flexibly connected.
Above-mentioned setting, can preferably limit workpiece locating module in one-movement-freedom-degree axially and longitudinally, raising detection
Precision.
Preferably, the longitudinal section of workpiece locating module is " V " type.
Preferably, the length of head rod and the second connecting rod is different, and the length for mounting blocks of popping one's head in is less than relatively short
The length of connecting rod.
Further, mounting blocks of popping one's head in include direct current generator, rectangular frame, connector, arc shaped slider and longitudinal section for half
Circular semi-circular bracket, rectangular frame include upper side wall, lower wall and rear wall；Direct current generator is fixed on rear wall；Upside
Wall connects semi-circular bracket with the front end joint activity of lower wall, and the shaft centre line of the output shaft of direct current generator is located at the first plane
It is interior, and stretch into rectangular frame and be connected with one end of connector；The other end of connector is connected with arc shaped slider；Semicircle branch
Frame includes flat sidewall and semicircular arc-shaped side wall；The circle passed through for sensor probe is provided with semi-circular bracket flat sidewall
Hole, is provided with the longitudinal arc chute being adapted with arc shaped slider on the outer surface of the circular arc side wall of semi-circular bracket.
Above-mentioned setting, can be rotated by direct current generator drive control connector around shaft centre line direction, in arc shaped slider
Drive under realize the swing of sensor probe, further improve adaptability, expand use scope, improve accuracy of detection.
The present invention also provides a kind of inner wall of hollow shaft detection method, method includes the following steps：
Radial expansion, is swung the left end that steering mechanism is moved to shaft by S1, as detection starting point；
S2, swing hollow shaft sleeve outside steering mechanism in shaft and radial expansion, is supported by workpiece locating module
Positioning, ensures that the axis of hollow shaft and the axis of shaft coincide, then installs right support abutment；
The movement of S3, controller control rotational control assemblies, control the circumferential movement of shaft, so as to drive sensor probe
All-round detection is carried out to inner wall of hollow shaft；
S4, detected one week, controller by controlling the movement of first axis control assembly and the second axial control assembly,
Control the first sliding block and the second sliding block moves right equidistant or non-equidistant displacement, repeat S3 steps；
S5, repeat S4 steps, until whole hollow shaft detection is finished.
Inner wall of hollow shaft provided by the present invention detects adaptive frock, the hollow shaft detection device phase with the prior art
Than having the advantages that：
1st, sensor probe can realize circumgyration campaign, axial movement, radial expansion and inner wall of hollow shaft normal direction
It is consistent, only just inner wall of hollow shaft can be comprehensively detected with a sensor probe；
2nd, application range is expanded, is applicable not only to the hollow shaft that diameter is consistent in detection high ferro train, moreover it is possible in detection
Hollow shaft in the airspace engine of footpath change；
3rd, accuracy of detection is higher, and cost is relatively low.
Brief description of the drawings
1 inner wall of hollow shaft of Fig. 1 embodiments detects the structure diagram of adaptive frock；
2 inner wall of hollow shaft of Fig. 2 embodiments detects the structure diagram of adaptive frock；
The structure diagram of the left support abutment of Fig. 3 embodiments 2；
The structure diagram of the workpiece locating module of Fig. 4 embodiments 2
The structure diagram of the right support abutment of Fig. 5 embodiments 2；
The radial expansion of Fig. 6 embodiments 3 swings the structure diagram of steering mechanism；
The radial expansion of Fig. 7 embodiments 3 swings the left view schematic diagram of steering mechanism；
The structure diagram of the semi-circular bracket of Fig. 8 embodiments 3.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples, and the following example is only used for explaining the present invention
The content of the invention, be not intended to limit the scope of the invention.
Embodiment 1
A kind of inner wall of hollow shaft detects adaptive frock, as shown in Figure 1, including left support abutment 1, right support abutment 2, controller, biography
Sensor probe 3, circumference steering mechanism, radial expansion swing steering mechanism and axial moving mechanism；
Circumference steering mechanism includes crossing the shaft 4 of 2 upper end of left support abutment 1 and right support abutment and for driving shaft 4 along axle center
The rotating rotational control assemblies of line, part of the shaft 4 between left support abutment 1 and right support abutment 2 are provided with horizontal keyway 22；
Preferably, rotational control assemblies include the first stepper motor 12 and are arranged at shaft 4 being pierced by left support abutment 1 the present embodiment
Left end on the first synchronizing wheel 13, the first synchronizing wheel 13 is connected with the output shaft of the first stepper motor 12 by vertical conveyors
Connect；
Radial expansion, which swings steering mechanism, includes the first sliding block 5, the second sliding block 6 and the spy for installing sensor probe 3
Head mounting blocks 7；First sliding block 5 and the second sliding block 6 are set in shaft 4, and the first sliding block 5 and the second sliding block 6 are set in shaft 4
On center section be respectively provided with a feather key 23 that can be stretched into horizontal keyway 22, ensure that the first sliding block 5 and the second sliding block 6 can
While being moved in shaft, to be rotated jointly with shaft；The left end joint activity of first sliding block 5 and probe mounting blocks 7
Head rod 9 is connected, the second sliding block 6 is connected the second connecting rod 11, the first connection with the right end joint activity for mounting blocks 7 of popping one's head in
9 and second connecting rod 11 of bar can be rotated relative to shaft 4, to control the distance between sensor probe 3 and shaft 4, it is preferable that
Head rod 9 is different with the length of the second connecting rod 11.
Preferably, the left ends of the first sliding block 5 and probe mounting blocks 7 is equipped with the first articulated shaft 8 to the present embodiment, two first
Head rod 9 is hinged with articulated shaft 8 jointly；The other end of second sliding block 6 and probe mounting blocks 7 is equipped with the second articulated shaft
10, two the second articulated shafts 10 are hinged with the second connecting rod 11 jointly；It is further preferred that the horizontal centre of head rod 9
The horizontal center line of line, the horizontal center line of the second connecting rod 11 and shaft 4 is co-located in the first plane, the first articulated shaft 8
It is perpendicular with the first plane with the second articulated shaft 10；It can ensure that head rod 9 is moved around the first articulated shaft 8, second connects
Extension bar 11 is moved around the second articulated shaft 10, and mounting blocks 7 of popping one's head in can pop one's head in left and right adjustment on the vertical direction of the first plane
Direction；The axial line of sensor probe is located in the first plane.
Axial moving mechanism includes the first axis control assembly being arranged in shaft 4 and the second axial control assembly, the
One axial control assembly is used for the axial movement for controlling the first sliding block 5 along shaft 4；Second axial control assembly is used to control second
Axial movement of the sliding block 6 along shaft 4；
Preferably, first axis control assembly includes the second stepper motor 14 and position positioned at the left side of shaft 4 to the present embodiment
The second synchronizing wheel 15 in the right side of shaft 4, the second synchronizing wheel 15 pass through 16 and second stepper motor 14 of first level conveyer belt
Output shaft is connected；Second axial control assembly is included positioned at the 3rd stepper motor 17 in the left side of shaft 4 and positioned at the right side of shaft 4
The 3rd synchronizing wheel 18；3rd synchronizing wheel 18 is connected by the second horizontal conveying belt 19 with the output shaft of the 3rd stepper motor 17
Connect；First sliding block 5 is connected with first level conveyer belt 16, and the second sliding block 6 is connected with the second horizontal conveying belt 19, second step
Stepper motor 14, the 3rd stepper motor 17, the second synchronizing wheel 15 and the 3rd synchronizing wheel 18 are respectively positioned among left support abutment 1 and right support abutment 2,
Ensure axial moving mechanism and shaft common rotation.
It is further preferred that the left side of shaft 4 is provided with horizontal motor fixing plate 20, the right side of shaft 4 is provided with perpendicular
Straight synchronous wheel support 21, the second stepper motor 14 and the 3rd stepper motor 17 are installed on the both sides up and down of motor fixing plate 20,
And it is centrosymmetric along the center of motor fixing plate 20；Second synchronizing wheel 15 and the 3rd synchronizing wheel 18 are arranged on synchronous wheel support 21
Both sides up and down, the lower end of the first sliding block 5 is fixedly connected with first level conveyer belt 16, upper end and the second water of the second sliding block 6
Flat conveyer belt 19 is fixedly connected, the horizontal center line of first level conveyer belt 16, the horizontal center line of the second horizontal conveying belt 19
It is co-located at the horizontal center line of shaft 4 in the second plane, the second plane and the first plane are perpendicular.
It is further preferred that the output shaft of the first stepper motor 12, the second stepper motor 14 and the 3rd stepper motor 17
On synchronizing wheel can be set, and by motor support base be separately mounted to left socle 1 left side and motor fixing plate 20 up and down
Both sides；Motor fixing plate is installed on the left side of shaft by a retainingf key, and certain interval is left between left support abutment, synchronous
Wheel support is installed on the right side of shaft by a retainingf key, and certain interval is left between right support abutment.
First stepper motor 12, the second stepper motor 14, the 3rd stepper motor 17 and sensor probe 3 with controller phase
Connection.
For first stepper motor by driving vertical synchronization band to control circumferentially rotating for shaft, shaft drives what is be disposed thereon
Axial moving mechanism and radial expansion swing steering mechanism and rotate together；Second stepper motor and the 3rd stepper motor difference
The first sliding block and the second sliding block is controlled axially to be transported along shaft by driving first level conveyer belt and the second horizontal conveying belt
It is dynamic；The first sliding block and the spacing of the second sliding block is controlled to remain unchanged, then sensor probe carries out axial translation；By reducing two
The distance between sliding block realizes stretching motion of the sensor probe along shaft radial direction, and increase spacing realizes the contraction along shaft radial direction
Movement；When keeping a motor not turn the rotation of another motor, it is possible to achieve swing of the sensor probe around vertical direction；Pass
Sensor probe can be achieved circumgyration campaign, axial movement, radial expansion, be consistent with inner wall of hollow shaft normal direction,
Just inner wall of hollow shaft can comprehensively be detected with a sensor probe.
Embodiment 2
Inner wall of hollow shaft that the present embodiment is provided detects adaptive frock, with embodiment 1 difference lies in, such as Fig. 2 and
Shown in Fig. 3, workpiece locating module 31 is provided among left support abutment 1 and right support abutment 2, left support abutment 1 includes the first vertical bearing sheet
Body 201, and the horizontal support plate positioned at 201 lower end of the first support body, horizontal support plate are included positioned at the left side of the first support body 201
Short slab part 202 and the plate portion 203 positioned at the right side of the first support body 201, plate portion 203 include the platform in left side
Portion 204 and the slide portion 205 on right side, the upper surface in slide portion 205 are provided with the horizontal slide rail 206 parallel with shaft 4, platform
The height in portion 204 is more than the height in slide portion 205；As shown in figure 4, workpiece locating module 31 preferentially uses vee-block, on its bottom surface
It is provided with the horizontal concrete chute 207 being adapted with horizontal slide rail 206；As shown in figure 5, right support abutment 2 includes the second vertical bearing sheet
Body 208, and the level board 209 positioned at 208 lower end of the second support body；The height of level board 209 is more than the height in slide portion 205
Degree；Level board 209 is flexibly connected with the right flank in slide portion 205.
Left support abutment, right support abutment and workpiece locating module separate setting, and workpiece locating module can be according to detected sky
The outer wall maximum gauge of mandrel carries out adaptability replacement；Slide and sliding slot ensure the movement of workpiece locating module, left socle and the right side
The height of stent is set, and can further control the movement of workpiece locating module, ensures stability, improves accuracy of detection.
Embodiment 3
The inner wall of hollow shaft that the present embodiment is provided detects adaptive frock, and difference lies in such as Fig. 6 and Fig. 7 with embodiment 2
Shown, probe mounting blocks 7 include direct current generator 301, rectangular frame 302, connector 303, arc shaped slider 304 and longitudinal section for half
Circular semi-circular bracket 305, rectangular frame 302 include upper side wall, lower wall and rear wall；Direct current generator is fixed on rear wall
301；Upper side wall connects semi-circular bracket 305, the axle center position of the output shaft of direct current generator 301 with the front end joint activity of lower wall
In in the first plane, and stretch into rectangular frame 302 and be connected with one end of connector 303；The other end connection of connector 303
There is arc shaped slider 304；Semi-circular bracket 305 includes flat sidewall and semicircular arc-shaped side wall；As shown in figure 8, semi-circular bracket 305
The circular hole 307 passed through for sensor probe 3 is provided with flat sidewall, on the outer surface of the circular arc side wall of semi-circular bracket 305
It is provided with the longitudinal arc chute 306 being adapted with arc shaped slider 304.
Two parallel convex blocks are respectively provided with left and right sides of rectangular frame, fixed jointly between two convex blocks the first articulated shaft and
Second articulated shaft；Above-mentioned setting, can be rotated around shaft centre line direction by direct current generator drive control connector, is slided in arc
Realize that sensor probe is swung around vertical direction under the drive of block, further improve adaptability, expand use scope, improve detection
Precision.
Another difference of the present embodiment and embodiment 1 and embodiment 2 further includes 9 and second connecting rod 11 of head rod and grows
Spend identical.
Embodiment 4
The present embodiment provides a kind of inner wall of hollow shaft detection method, include the following steps：
Radial expansion, is swung the left end that steering mechanism is moved to shaft 4 by S1, as detection starting point；
S2, swing hollow shaft sleeve outside steering mechanism in shaft 4 and radial expansion, is propped up by workpiece locating module 31
Support positioning, the axis and the axis of shaft 4 for ensureing hollow shaft coincide, and then install right support abutment 2；
The movement of S3, controller control rotational control assemblies, control the circumferential movement of shaft 4, so as to drive sensor to visit
First 3 pairs of inner wall of hollow shaft carry out all-round detection；
S4, detected one week, controller by controlling the movement of first axis control assembly and the second axial control assembly,
Control the first sliding block 5 and the second sliding block 6 moves right equidistant or non-equidistant displacement, repeat S3 steps；
S5, repeat S4 steps, until whole hollow shaft detection is finished.
Claims (10)
1. a kind of inner wall of hollow shaft detects adaptive frock, including left support abutment (1), right support abutment (2), controller, sensor probe
(3), circumference steering mechanism, radial expansion swing steering mechanism and axial moving mechanism, it is characterised in that
The circumference steering mechanism includes crossing the shaft (4) of the left support abutment (1) and right support abutment (2) upper end, for driving
State shaft (4) rotating rotational control assemblies；
The radial expansion, which swings steering mechanism, includes the first sliding block (5), the second sliding block (6) and for installing sensor probe
(3) probe mounting blocks (7)；First sliding block (5) and the second sliding block (6) are set in the shaft (4)；The probe
Head rod (9), the probe mounting blocks (7) are connected between the left end of mounting blocks (7) and first sliding block (5)
Right end and second sliding block (6) between be connected with the second connecting rod (11), the head rod (9) and second connects
Extension bar (11) can be rotated relative to shaft (4), to control the distance between the sensor probe (3) and shaft (4)；
The axial moving mechanism includes the first axis control assembly being arranged in the shaft (4) and the second axial control group
Part, the first axis control assembly are used to control axial movement of first sliding block (5) along the shaft (4)；Described
Two axial control assemblies are used to control axial movement of second sliding block (6) along the shaft (4)；
The rotational control assemblies, first axis control assembly, the second axial control assembly and sensor probe (3) with it is described
Controller is connected.
2. inner wall of hollow shaft as claimed in claim 1 detects adaptive frock, it is characterised in that the rotational control assemblies bag
Include the first stepper motor (12) and be arranged at the first synchronizing wheel that the shaft (4) is pierced by the left end of the left support abutment (1)
(13), first synchronizing wheel (13) is connected with the output shaft of first stepper motor (12) by vertical conveyors.
3. inner wall of hollow shaft as claimed in claim 2 detects adaptive frock, it is characterised in that the first axis control group
Part includes the second stepper motor (14) on the left of the shaft (4) and the second synchronizing wheel on the right side of the shaft (4)
(15), second synchronizing wheel (15) passes through first level conveyer belt (16) and the output shaft phase of second stepper motor (14)
Connection；Described second axial control assembly is including the 3rd stepper motor (17) on the left of the shaft (4) and positioned at described
The 3rd synchronizing wheel (18) on the right side of shaft (4)；3rd synchronizing wheel (18) passes through the second horizontal conveying belt (19) and described the
The output shaft of three stepper motors (17) is connected；First sliding block (5) is connected with the first level conveyer belt (16), institute
State the second sliding block (6) with second horizontal conveying belt (19) to be connected, second stepper motor (14), the 3rd stepper motor
(17), the second synchronizing wheel (15) and the 3rd synchronizing wheel (18) are respectively positioned among the left support abutment (1) and right support abutment (2).
4. inner wall of hollow shaft as claimed in claim 3 detects adaptive frock, it is characterised in that the left side of the shaft (4)
Horizontal motor fixing plate (20) is provided with, is provided with vertical synchronous wheel support (21) on the right side of the shaft (4), described
Two stepping motor (14) and the 3rd stepper motor (17) are installed on the both sides up and down of the motor fixing plate (20), and along the electricity
The center of machine fixed plate (20) is centrosymmetric；Second synchronizing wheel (15) and the 3rd synchronizing wheel (18) are arranged on the synchronization
The both sides up and down of wheel support (21), the first level conveyer belt (16) and the relatively described shaft of the second horizontal conveying belt (19)
(4) it is symmetrical.
5. inner wall of hollow shaft as claimed in claim 4 detects adaptive frock, it is characterised in that the shaft (4) is located at institute
State the part between left support abutment (1) and right support abutment (2) and be provided with horizontal keyway (22), first sliding block (5) and the second sliding block
(6) feather key (23) that can be stretched into the horizontal keyway (22) is respectively provided with.
6. inner wall of hollow shaft as claimed in claim 1 detects adaptive frock, it is characterised in that the left support abutment (1) and the right side
Workpiece locating module (31) is provided among bearing (2), the left support abutment (1) includes vertical the first support body (201), and
Horizontal support plate positioned at the first support body (201) lower end, the horizontal support plate include being located at first support body
(201) the short slab part (202) on the left of and the plate portion (203) on the right side of first support body (201), the length
Plate part (203) includes the platform part (204) in left side and the slide portion (205) on right side, and the upper surface of the slide portion (205) is set
It is equipped with horizontal slide rail (206)；It is provided with the bottom surface of the workpiece locating module (31) and is adapted with the horizontal slide rail (206)
Horizontal concrete chute (207).
7. inner wall of hollow shaft as claimed in claim 6 detects adaptive frock, it is characterised in that the right support abutment (2) includes
Vertical the second support body (208), and the level board (209) positioned at the second support body (208) lower end；The platform
The height in portion (204) is more than the height of the slide portion (205), and the height of the level board (209) is more than the slide portion
(205) height；The level board (209) is flexibly connected with the right flank of the slide portion (205).
8. the inner wall of hollow shaft as described in claim 1-7 is any detects adaptive frock, it is characterised in that first connection
Bar (9) is different with the length of the second connecting rod (11).
9. the inner wall of hollow shaft as described in claim 1-7 is any detects adaptive frock, it is characterised in that the probe installation
Block (7) is semicircle including direct current generator (301), rectangular frame (302), connector (303), arc shaped slider (304) and longitudinal section
The semi-circular bracket (305) of shape, the rectangular frame (302) include upper side wall, lower wall and rear wall；It is solid on the rear wall
The fixed direct current generator (301)；The upper side wall connects the semi-circular bracket (305) institute with the front end joint activity of lower wall
The shaft centre line for stating the output shaft of direct current generator (301) is located in first plane, and stretches into the rectangular frame (302)
It is connected with one end of the connector (303)；The other end of the connector (303) is connected with arc shaped slider (304)；It is described
Semi-circular bracket (305) includes flat sidewall and semicircular arc-shaped side wall；It is provided with semi-circular bracket (305) flat sidewall
The circular hole (307) passed through for the sensor probe (3), sets on the outer surface of the circular arc side wall of the semi-circular bracket (305)
It is equipped with the longitudinal arc chute (306) being adapted with the arc shaped slider (304).
10. a kind of inner wall of hollow shaft detection method, described method includes following steps：
Radial expansion, is swung the left end that steering mechanism is moved to shaft (4) by S1, as detection starting point；
S2, swing hollow shaft sleeve outside steering mechanism in the shaft (4) and radial expansion, by workpiece locating module (31) into
Row support positioning, the axis and the axis of the shaft (4) for ensureing hollow shaft coincide, and then install right support abutment (2)；
The movement of S3, controller control rotational control assemblies, the circumferential movement of control shaft (4), so as to drive sensor probe
(3) all-round detection is carried out to inner wall of hollow shaft；
S4, detected one week, and controller is by controlling the movement of first axis control assembly and the second axial control assembly, control
First sliding block (5) and the second sliding block (6) move right equidistant or non-equidistant displacement, repeat S3 steps；
S5, repeat S4 steps, until whole hollow shaft detection is finished.
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| CN201711243196.7A CN107991383B (en) | 2017-11-30 | 2017-11-30 | Hollow shaft inner wall detection self-adaptive tool and detection method |
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| CN201711243196.7A CN107991383B (en) | 2017-11-30 | 2017-11-30 | Hollow shaft inner wall detection self-adaptive tool and detection method |
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| CN111856610A (en) * | 2019-04-28 | 2020-10-30 | 江苏天瑞仪器股份有限公司 | Sensor detection mechanism |
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| CN107991383B (en) | 2021-05-11 |
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