CN106556316A - A kind of dial bore gage measurement bay - Google Patents
A kind of dial bore gage measurement bay Download PDFInfo
- Publication number
- CN106556316A CN106556316A CN201610897261.7A CN201610897261A CN106556316A CN 106556316 A CN106556316 A CN 106556316A CN 201610897261 A CN201610897261 A CN 201610897261A CN 106556316 A CN106556316 A CN 106556316A
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- Prior art keywords
- gauge head
- measurement
- measurement matrix
- matrix
- table bar
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of dial bore gage measurement bay, including measurement matrix, fixed gauge head, movable gauge head and the table bar for extending in left-right direction, fixed gauge head is arranged on the upper end of measurement matrix, movable gauge head is arranged on the lower end of measurement matrix, and the axis of fixed gauge head is with the dead in line of movable gauge head and vertically extending, measurement matrix is rotatably arranged on table bar, and it is vertical with the axis of the axis of table bar and fixed gauge head to measure the pivot center of matrix, it is provided with driving measurement matrix to rotate swing driving mechanism of the shaft line relative to table bar reciprocally swinging between described measurement matrix and described table bar.Above-mentioned swing driving mechanism does reciprocal swing around the relative table bar of pivot center of measurement matrix by driving measurement matrix, with regard to solving the problems, such as to cause pendulum angle not enough cannot detect deep hole as measurement matrix is installed on table bar in prior art.
Description
Technical field
The present invention relates to a kind of dial bore gage measurement bay.
Background technology
Instrument for measuring internal diameter of cycle trough, including main body are disclosed in Chinese patent literature CN2182985Y（That is measurement base
Body）, support, straight tube, push rod, movable gauge head, test probe replaceable（Gauge head is fixed）And bascule, movable gauge head and test probe replaceable
Be co-axially located in main body, test probe replaceable is removable to be assemblied in main body and locked by locking nut, movable gauge head and main body it
Between be slidably matched.Spring is provided between the top of the cavity in movable gauge head and test probe replaceable, spring center has guide rod.In straight tube
Equipped with push rod, one end of push rod and the gauge outfit contact of dial gauge, the other end of push rod is contacted with bascule, bascule
The other end contact with movable gauge head, bascule defines the gauge outfit that the displacement variable of movable gauge head is converted into dial gauge
The displacement transmission mechanism of the displacement variable of contact.After main body stretches into measured bore, lead under the action of the spring by edge for movable gauge head
Bar is moved and promotes bascule to rotate, and bascule promotes push rod movement, push rod to promote the gauge outfit contact of dial gauge to move, and hundred
Divide table indicator to rotate and just complete measurement purpose.Dial bore gage when in use, finds the minimum of axial plane by swinging
Size is diameter, as body normal is installed on straight tube, so when needing to detect deep hole, due to the swing of main body
Angle cannot not enough be measured, when needing to detect shoulder hole, as support cannot stretch into macropore from aperture, also with regard to nothing
Method is detected to macropore.This requires to provide the dial bore gage measurement bay that a kind of measurement matrix can be swung with respect to table bar.
The content of the invention
It is an object of the invention to provide the dial bore gage measurement bay that a kind of measurement matrix can be swung with respect to table bar.
For achieving the above object, the technical scheme of dial bore gage measurement bay of the present invention is：
A kind of dial bore gage measurement bay, including measurement matrix, fixed gauge head, movable gauge head and the table for extending in left-right direction
Bar, fixed gauge head are arranged on the upper end of measurement matrix, and movable gauge head is arranged on the lower end of measurement matrix, and the axis of fixed gauge head
Dead in line with movable gauge head is simultaneously vertically extending, and measurement matrix is rotatably arranged on table bar, and measures matrix
Pivot center is vertical with the axis of the axis of table bar and fixed gauge head, arranges between described measurement matrix and described table bar
There is driving measurement matrix to rotate swing driving mechanism of the shaft line relative to table bar reciprocally swinging.
Swing driving mechanism is included for driving measurement matrix to swing to direction around the pivot center of measurement matrix
Drawing drive mechanism and the elastic reset for driving measurement matrix to swing in the other direction around the pivot center for measuring matrix
Mechanism.
The spanner that drawing drive mechanism includes bracing wire and is hinged on table bar, bracing wire one end are installed on measurement matrix, separately
One end is installed on spanner.
Flexible restoring organ is removable the first extension spring on table bar in one end, and the other end of the first extension spring is by screw rod
The removable lower end installed in measurement matrix.
The lower end of measurement matrix is additionally provided with centering machine, centering machine include two can the synchronous elasticity of relative measurement matrix
Flexible support contact, two support contacts are set relative to the plane symmetry being made up of the fixed axis of gauge head and the axis of table bar
Put, and the dead in line of the midpoint of the line of two support contacts and fixed gauge head, in measurement two support contacts with it is tested
The interior wall pressure of endoporus is touched.
Centering machine includes that guiding movement is assemblied in the guide cylinder on measurement matrix lower end, guide cylinder and survey along the vertical direction
Between amount matrix, pressure is provided with stage clip along the vertical direction, and two described support contacts are fixed on guide cylinder.
Measurement matrix lower end be provided with guiding mounting hole, on guide cylinder it is removable be provided with for described guiding mounting hole
The backing pin that guiding is slidably matched, described stage clip are arranged between backing pin and measurement matrix, are additionally provided with use on described guide cylinder
Ear is stretched out in two support contacts are installed.
A kind of displacement transmission mechanism of dial bore gage measurement bay includes the push rod and movable gauge head located at described table bar
Between convex gear, the pivot center of convex gear is overlapped and is intersected with the axis of push rod with the pivot center of measurement matrix, described
The side towards convex gear of movable gauge head be provided with rack-driving toothing, described convex gear be provided with for tooth bar
The meshing teeth and the cam part for coordinating with described push rod of transmission toothing engaged transmission.
Measurement matrix includes support block, lower support block, left plate and right plate, and described upper and lower support block is folded in
Between left and right side plate, and the upper/lower terminal of measurement matrix is located at respectively.
The invention has the beneficial effects as follows：By measurement matrix is rotatably arranged on table bar, and in measurement matrix and table bar
Between swing driving mechanism is set, when needing the form and position tolerance to shoulder hole to detect, swing driving mechanism drive measurement
Matrix swings around the relative table bar of center of rotation and inclines, so as to deep hole is easily entered into from aperture.When needing to measure deep hole
During form and position tolerance, measurement matrix is stretched into into measured bore, then swing driving mechanism drives measurement matrix turning around measurement matrix
Shaft line does reciprocal swing with respect to table bar, found by swinging the axial plane of measured bore minimum dimension be used as it is tested
Diameter of bore, this addresses the problem in prior art and causes the pendulum angle not enough cannot due to measuring matrix and be installed on table bar
The problem of measurement deep hole.
Further, drawing drive mechanism of the invention adopts bracing wire and spanner, flexible restoring organ to adopt the first extension spring,
Such setting causes user only pull or unclamp spanner, and measurement matrix just overcomes the first extension spring to act in bracing wire active force
Power does clockwise oscillation, and after bracing wire is unclamped, measurement matrix again can counter-clockwise swing, operation letter in the presence of the first extension spring
It is single.
Additionally, the centering machine of the present invention determines a round principle using 3 points, two are arranged relative to measurement matrix
The support contact of synchronous elastic telescopic, and two support contacts are symmetricly set on the axis group of the axis and table bar of fixed gauge head
Into plane both sides, and the midpoint of the line of two support contacts and the dead in line of fixed gauge head are so supported at two
Under the collective effect of contact and fixed gauge head, it is ensured that movable gauge head is moved on this diameter of a circle all the time, makes measurement data
It is relatively reliable.
Description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the sectional view of B-B in Fig. 1；
Fig. 4 is the structural representation of lower support block in Fig. 1；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the structural representation of transition connecting seat in Fig. 1；
Fig. 7 is the C-C sectional views of Fig. 6；
Fig. 8 is the D-D sectional views of Fig. 6；
Fig. 9 is the structural representation of guide cylinder in Fig. 1；
Figure 10 is the E-E sectional views of Fig. 9；
Figure 11 is schematic diagram when movable gauge head is rotated clockwise in Fig. 1；
Figure 12 is schematic diagram when movable gauge head is rotated counterclockwise in Fig. 1.
In figure, each reference is entitled：1 fixation gauge head, 2 housings, 3 dial gauges, 4 locking nuts, 5 bearing pins, 6 handles, 7
Transition connecting seat, 8 push rods, 9 convex gears, 10 screw rods, 11 bracing wires, 12 dial indicator holders, 13 fixed pulleys, 14 spanners, 15 second extension springs,
16 guide rollers, 17 times support blocks, 18 positioning supporting pins, 19 guide cylinders, 20 stage clips, 21 backing pins, support block on 22, on the left of in the of 23
Plate, 24 right plates, 25 movable gauge heads, 26 first extension springs.
Specific embodiment
As Figure 1-10 shows, a kind of dial bore gage measurement bay, including measurement matrix, fixed gauge head 1,25 and of movable gauge head
Table bar.Fixed gauge head 1 is arranged on the upper end of measurement matrix, and movable gauge head 25 is arranged on the lower end of measurement matrix, and fixed gauge head 1
Axis and movable gauge head 25 dead in line.The tubular structure that the housing 2 of above-mentioned table bar extends for left and right, housing 2 are built-in
There is a push rod, the axis of push rod and the dead in line of housing 2, the right-hand member of table bar are provided with for installing the dial indicator holder 12 of dial gauge 3.
Measurement matrix is rotatably arranged on the left end of table bar, and measures the pivot center of matrix with the axis of table bar and the axle of fixed gauge head 1
Line is vertical.
In the present embodiment, matrix is measured mainly by 24 groups of upper support block 22, lower support block 17, left plate 23 and right plate
It is folded between left and right side plate into, upper support block 22 and lower support block 17, upper support block 22 is located at measurement matrix upper end, lower
Bracer 17 is located at the lower end of measurement matrix.Fixed gauge head 1 is removable to be assemblied in the upper support block 22 of measurement base body and by locking
Nut 4 is locked, and the top of fixed gauge head 1 is provided with top sphere, and the two ends of movable gauge head 25 are respectively guide end and measurement end,
The guide end of movable gauge head 25 is oriented to the guide frame being arranged on measurement matrix and is slidably matched, the measurement end of movable gauge head 25
Measurement sphere is provided with, measurement sphere and the top sphere for fixing gauge head 1 of movable gauge head 25 complete the measurement in hole jointly.It is above-mentioned
Measurement matrix be rotatably arranged on transition connecting seat 7 by bearing pin 5, transition connecting seat 7 is removable installed in above-mentioned housing 2
Left end, and the axis of bearing pin 5 is vertical with the axis of the axis of housing 2 and fixed gauge head 1.Above-mentioned push rod sequentially passes through housing
2nd, handle 6, then stretch in dial indicator holder 12, are oriented to by the guide section being arranged on push rod and are slidably arranged in housing 2, and
The right-hand member of push rod for the gauge outfit contact of dial gauge 3, left end stretch in measurement base body be arranged in measurement base body
Displacement transmission mechanism is contacted.Driving measurement matrix is additionally provided between measurement matrix and table bar shaft line is rotated relative to table bar
The swing driving mechanism of reciprocally swinging.
In other embodiments, handle 6 and dial indicator holder 12 can be cancelled, dial gauge 3 is directly installed in the right side of housing 2
End.When the different elongated holes of measurement to be changed the table bar of different length, in order to more easily measurement matrix is dismantled simultaneously from table bar
On other table bars, transition connecting seat 7 is set between table bar and measurement matrix, can also be cancelled in other embodiments
Transition connecting seat 7, opens up breach in the left end of table bar, measurement matrix is put into after the breach, is worn in table bar and measurement base body
Enter the band cap screw that one end is polished rod, the other end is threaded rod, then the screw on nut on threaded rod, makes measurement matrix around band cap
The smooth bar part of screw does the rotation relative to table bar.
Above-mentioned guide frame is four guide rollers being arranged between the left plate 23 and right plate 24 of measurement matrix
16, four guide rollers 16 can flexible rotating.Four guide rollers 16 are distributed in the left and right two ends of movable gauge head 25 two-by-two, with work
The guide end of dynamic gauge head 25 is oriented to and is slidably matched, and the measurement end of movable gauge head 25 is being lived through the slip endoporus of lower support block 17
The slip block plane for preventing movable gauge head from slipping from measurement base body is provided between the guide end and measurement end of dynamic gauge head.
It is additionally provided with the second extension spring 15 between measurement matrix and movable gauge head, one end of the second extension spring 15 is arranged on movable gauge head, another
End is arranged in above-mentioned lower support block 17, and the second extension spring 15 makes movable gauge head remain the trend for moving down.Work as activity
When the measurement end of gauge head 25 does not stress, the slip block plane of movable gauge head 25 in the presence of the second extension spring 15 all the time with lower
The end face laminating of the slip endoporus of bracer 17.When the measurement end of movable gauge head 25 is subject to the squeezing action of the inwall of measured bore
When, axis direction of the movable gauge head in the presence of the guide roller 16 of the second extension spring 15 and both sides along movable gauge head is in measurement base
Upper and lower stretching motion, and above-mentioned slip block plane quilt are done in the inner chamber that the upper and lower support block of body and left and right side plate are surrounded
The end face block of the slip endoporus of lower support block 17.In other embodiments, above-mentioned guide frame can also be and be opened in survey
The gathering sill being slidably matched with the guide end guiding of movable gauge head 25 on the left plate 23 and/or right plate 24 of amount matrix.
Above-mentioned swing driving mechanism is included for driving measurement matrix around the pivot center of measurement matrix to a direction
The drawing drive mechanism of swing and the bullet for driving measurement matrix to swing in the other direction around the pivot center for measuring matrix
Property resetting-mechanism.Drawing drive mechanism includes bracing wire 11 and the spanner 14 being hinged on table bar, and 11 left end of bracing wire is installed in measurement
In the upper support block 22 of matrix, right-hand member is installed on spanner 14.It is provided with table bar for changing the fixed pulley that bracing wire 11 is moved towards
13, the right-hand member of bracing wire 11 is installed on spanner 14 through after fixed pulley 13, so it also avoid directly setting one end of bracing wire 11
Put and measuring when matrix upper end, the other end are arranged on table bar easily by the inwall interference by sounding hole, cause measurement data not
Accurately problem, and the fixed pulley 13 can also make bracing wire 11 keep tensioned state.In other embodiments, fixed pulley also may be used
Bracing wire is limited near the position of table bar with being substituted using through wires hole nose, can also cancel certainly the fixed pulley.Above-mentioned elasticity
Resetting-mechanism be two ends respectively it is removable installed in measurement matrix lower support block 17 on table bar 2 on the first extension spring 26, first
Extension spring is connected on measurement matrix by screw rod 10, adjusts the pulling force of extension spring by screwing screw rod 10.In the present embodiment, on
The drawing drive mechanism stated and flexible restoring organ are separately positioned on the upper and lower both sides of the center of rotation of measurement matrix.At other
In embodiment, the upper and lower position of drawing drive mechanism and flexible restoring organ can also be exchanged and be arranged.Certainly, it is above-mentioned to lead
Draw drive mechanism be connected on measurement matrix by connecting rod using rigid pull bar again；Above-mentioned flexible restoring organ may be used also
With using stage clip mode or torsion spring mode.
Above-mentioned displacement transmission mechanism includes convex gear 9 and rack-driving toothing, and convex gear 9 is rotatably arranged on bearing pin 5
On, bearing pin 5 is arranged between push rod and movable gauge head 25, and the dead in line of the center of bearing pin 5 and push rod.Rack-driving tooth is tied
Structure is arranged on the side towards convex gear 9 of movable gauge head 25, and the bearing of trend of rack-driving toothing and movable gauge head
Diameter parallel, convex gear 9 included for the cam part with the meshing teeth of tooth bar engaged transmission and for being coordinated with push rod.
Additionally, in order to ensure when matrix swing is measured, fixed gauge head 1 is in tested all the time with the line of movable gauge head 25
Endoporus diametrically, guarantees the accuracy for measuring, is also provided with centering machine in the lower end of measurement matrix.Centering machine includes
Two can relative measurement matrix synchronization elastic telescopic support contact, two support contacts are relative to the axis by fixed gauge head 1
The plane symmetry constituted with the axis of table bar is arranged, and the midpoint of the line of two support contacts and the axis weight for fixing gauge head 1
Close.
In the present embodiment, above-mentioned centering machine includes guide cylinder 19, stage clip 20 and two positioning supporting pins 18, is oriented to
Cylinder 19 is oriented to the lower end of measurement matrix and is slidably matched, and guide cylinder 19 is provided with for installing stretching out for two positioning supporting pins 18
Ear, two positioning supporting pins 18 are arranged relative to the plane symmetry being made up of the fixed axis of gauge head 1 and the axis of table bar 2, and
The midpoint of the line of two positioning supporting pins 18 and the dead in line for fixing gauge head 1；It is provided between guide cylinder 19 and measurement matrix
Stage clip, stage clip are coordinated with measurement matrix and 19 equal top pressure of guide cylinder, and the direction of motion of the telescopic direction of stage clip and movable gauge head
Unanimously, when measurement base health check-up survey measured bore when, two positioning supporting pins 18 stage clip effect under be synchronized with the movement and all the time with quilt
The interior wall pressure for surveying endoporus is touched.
The lower end of lower support block 17 is provided with guiding mounting hole, and guide cylinder 19 is sleeved on the lower end of lower support block 17, guide cylinder
Removable on 19 to be provided with for being oriented to the backing pin 21 being slidably matched with the above-mentioned mounting hole that is oriented to, above-mentioned stage clip is arranged on backing pin
Between 21 and lower support block 17.One end of stage clip 20 is contacted with lower support block 17, the other end is contacted with backing pin 21, and stage clip 20 is with
Support block 17 and 21 equal top pressure of backing pin coordinate, and the direction of motion of guide cylinder is consistent with the direction of motion of movable gauge head 25.Two fixed
Location sphere is provided with the external part of position supporting pin 18, two location spheres are done in the presence of stage clip 20 and movable gauge head 25
The direction of motion it is consistent slide up and down, certainly, position supporting pin and can also adopt and be installed in the hemisphere that stretches out on ear and substitute.
It is additionally provided with above-mentioned guide cylinder 19 and hide mounting hole for hide screw rod 10.In other embodiments, can be with
The lower end of support block opens up blind hole, is directed to cylinder in the blind hole of lower support block, arranges and be oriented on the barrel of guide cylinder
Mounting hole, guide cylinder are oriented to and are slidably matched by being oriented to mounting hole and the removable bearing pin in lower support block, in guide cylinder
Top and lower support block blind hole bottom between spring is set, the bottom of the measurement end of movable gauge head from the bottom of lower support block
The slide opening on the top of guide cylinder is passed through after passing in hole.
The operation principle of the swing driving mechanism of the present invention：First, when spanner 14 is pulled downwards, spanner pulls up bracing wire
11, bracing wire 11 pulls measurement matrix to start to rotate clockwise around bearing pin 5, simultaneously as the first extension spring 26 pulls measurement matrix
Lower support block 17, so as to apply to hinder its reversal interlocking relay for rotating clockwise to measuring matrix, so measurement matrix just can only be around
Bearing pin 5 planar rotates clockwise the angle specified；When spanner 14 is unclamped, the first extension spring 26 pulls measurement matrix around bearing pin
5 start to rotate counterclockwise, and in bracing wire to measuring under the opposition that matrix applies, measurement matrix can only be around bearing pin 5 in plane
The angle specified is rotated counterclockwise inside.So by pulling spanner 14 downward or upward, it is achieved that measurement matrix is done around bearing pin 5
Swing clockwise or counterclockwise.2nd, measure the pivot center weight of the convex gear of the pivot center and displacement transmission mechanism of matrix
Close, and the pivot center of convex gear is intersected with the axis of push rod, so when the measurement end of movable gauge head 25 does not stress, activity
End of the slip stopping surface of gauge head 25 in the presence of the second extension spring 15 all the time with the slip endoporus of the lower support block of measurement matrix
Fit in face.As depicted in figs. 11-12, as the top of push rod 8 is pressed on the cam part of convex gear 9, and the axis and double wedge of push rod 8
The center of rotation of wheel 9 overlaps, and now, if pulling spanner 14 downward or upward, measurement matrix drive activity gauge head 25 is together around pin
Axle 5 is rotated, as movable gauge head 25 only does the rotation around bearing pin 5 and the engagement rolling in the meshing teeth of convex gear 9, so convex
Gear 9 is simultaneously not affected by tangential active force, and convex gear 9 is remained stationary as, and such convex gear 9 would not also promote push rod 8 to move, top
Bar 8 does not promote the gauge outfit contact of dial gauge to move yet, and the pointer of dial gauge does not also swing.When the measurement end of movable gauge head 25 is subject to
The squeezing action of the inwall of measured bore overcomes the active force of extension spring, when doing axial stretching motion, the tooth bar of movable gauge head 25
Transmission toothing applies tangential active force to the meshing teeth of convex gear 9, and convex gear 9 starts to rotate, and then promotes push rod 8 to move
Dynamic, the dial gauge beat of pointer reaches measurement purpose.As reciprocally swinging and movable gauge head around pivot center are done when measurement matrix
Not during the axial stretching of the movable gauge head in edge, the pointer of dial gauge does not swing, only when movable gauge head is along its axial stretching,
The pointer of dial gauge can just swing, and the mistake that avoiding problems dial gauge surveys the generation of phenomenon, improves the reliability of measurement data.
The operation principle of the centering machine of the present invention：As two positioning supporting pins 18 are separately positioned on by fixed gauge head 1
Axis and table bar 2 axis composition plane arranged on left and right sides and symmetrically, in the lines of two positioning supporting pins 18
The dead in line of point and fixed gauge head 1, the location sphere of two such positioning supporting pin 18, the top sphere of fixed gauge head 1
Three summits are in a plane, and the line on the summit of the location sphere of two positioning supporting pins 18 and fixed gauge head 1
The axis center of vertical and line and the dead in line for fixing gauge head 1 all the time.After measurement matrix insertion measured bore, in pressure
In the presence of spring 20, the top sphere of the location sphere of two positioning supporting pins 18 and fixed gauge head 1 keeps and measured bore
The contact of hole wall top pressure, determine a round principle according to 3 points, three above-mentioned summits on a circle, two positioning
The summit line of the location sphere of support pin 18 is the string on circle, due to the axis of fixed gauge head 1 cross the center of string and all the time with string
Vertically, so the axis of fixed gauge head 1 is overlapped with diameter of a circle.Again due to the axis and the axle for fixing gauge head 1 of movable gauge head 25
Line overlaps, and the measurement inwall top pressure of the sphere all the time with measured bore in the presence of the second extension spring of movable gauge head 25 is contacted,
So the summit of the measurement sphere of movable gauge head 25 and the line on the summit of the top sphere of fixed gauge head 1 are exactly measured bore
Diameter.When diameter of a circle size changes, two positioning supporting pins 18 drive the backing pins 21 of guide cylinders 19 extruding stage clip
20 and the upper and lower slip in the guiding mounting hole of lower support block 17.Summit by the location sphere of two positioning supporting pins 18 is true
The length of fixed string changes, but due to fixed gauge head 1 axis all the time the and string vertical with the string midpoint all the time with
The dead in line of fixed gauge head 1, so the summit line of the measurement sphere of the top sphere of fixed gauge head 1 and movable gauge head 25 is still
For diameter of a circle.
The present invention when in use, first, according to workpiece size to be measured, selects the fixed gauge head 1 of respective range to be installed to
In the upper support block 22 of measurement matrix.Then the top sphere of gauge head 1 and the measurement of movable gauge head 25 are fixed with miking
Size between sphere, with hand moving wrench 14 or release, in the presence of bracing wire 11 and the first extension spring 26,1 He of fixed gauge head
Movable gauge head 25 does reciprocally swinging around bearing pin 5 with measurement matrix, due to the now measurement sphere of movable gauge head 25 and does not stress, convex
Gear is not rotated, and would not also promote push rod to move, and now adjusts the good table in 3 dial school of dial gauge.Then, measurement matrix is entered
Enter the measurement position of deep hole, pull or unclamp spanner 14, allow and measure matrix reciprocally swinging in measured bore.When movable gauge head 25
Measurement sphere when not stressing, convex gear will not promote push rod to move, and push rod will not promote the gauge outfit contact of dial gauge to move, hundred
Indicator needles do not swing.When the measurement sphere of movable gauge head 25 is subject to the inwall of measured bore to extrude, movable gauge head 25 is to admittedly
Location survey rostral is moved, so that the rack-driving toothing of movable gauge head 25 drives the meshing teeth of the convex gear 9 for engaging
Rotate, the cam part of convex gear 9 promotes the side shifting to the right of push rod 8, and push rod 8 promotes the gauge outfit contact of dial gauge 3, so that percentage
3 indicator of table swings, and the displacement variable of the linear motion of movable gauge head 25 is just converted into push rod by such displacement transmission mechanism
The displacement variable of linear motion, and then the displacement variable of the gauge outfit contact of dial gauge 3 is converted into, 3 beat of pointer of dial gauge,
Reach measurement purpose.
It is the preferred embodiments of the present invention above, in other embodiments, for example swing driving mechanism can also be employing
Pinion and rack, gear is installed on measurement matrix and gear shares a rotating shaft with the convex gear in displacement transmission mechanism,
The tooth bar engaged with the gear is slidably arranged on table bar, is rotated come drive gear and then is driven survey by promoting or retracting tooth bar
Measure swinging to the right or to the left for matrix.
In other embodiments, above-mentioned displacement transmission mechanism can also be the gear and setting being rotatably arranged on bearing pin
Tooth bar on the side of the guide section of movable gauge head, the wheel hub of the gear are provided with the top pressure fitted with the promote-side of push rod
Groove, when the pinion rotation, as the depth consecutive variations of top pressure groove are moved left and right so as to the promote-side for promoting push rod.
Above-mentioned centering machine can also be that centering machine can include a centering frame, and centering frame is outside by a bit
Extend the y-type structure of two push rods and a support bar, wherein support bar is bar telescopic along own axes, is arranged thereon
There is the spring that bar can be moved up and down, support bar is arranged in lower support block, the diameter parallel of its axis and movable gauge head；Two
The length of push rod is consistent and sphere end portions of two push rods are consistent with the distance of the measurement end of above-mentioned movable gauge head respectively, thus
Can ensure that, while movable gauge head is moved up and down, two push rods are moved up and down under the telescopic action of support bar, adjustment measurement
The angle of frame, it is ensured that two push rods are pushed up and can guarantee that to the inwall for treating gaging hole the axis of movable gauge head is the via center of circle
Straight line.
Centering machine can also be two T-shaped expansion links by being stretched out in the both sides of lower support block respectively, its
In, the T-shaped lower end of two expansion links be fixed in vertical rod in lower support block and T-shaped be provided with can self extending structure, so as to can
Ensure that T-shaped cross bar can be moved in the axis direction of T-shaped vertical rod, it is only necessary to ensure two expansion links T-shaped vertical rod it is reverse
Extend intersection point to intersect on the axis of movable gauge head, when treating gaging hole and measuring, by the angle for adjusting measurement bay, it is ensured that
Two boom ends of the T-shaped cross bar of the expansion link of lower support block both sides can contact hole inwall, due to T-shaped cross bar constitute it is to be measured
One string of circle that hole is located, therefore, the intersection point of the perpendicular bisector of two strings is the center of circle, and due to understanding, the axis of movable gauge head is worn
The center of circle is crossed, the length measured by which is diameter.
Above-mentioned gauge head matrix is to provide the structure for supporting and positioning for fixed gauge head, movable gauge head and displacement transmission mechanism etc.
Part, in the specific implementation, its structure according to the guide frame of selected displacement transmission mechanism and movable gauge head and can make activity
Gauge head keep down trend spring mounting means different and make adaptive change, these change those skilled in the art's roots
Can realize according to design general knowledge.
Claims (9)
1. a kind of dial bore gage measurement bay, including measurement matrix, fixed gauge head, movable gauge head and the table for extending in left-right direction
Bar, fixed gauge head are arranged on the upper end of measurement matrix, and movable gauge head is arranged on the lower end of measurement matrix, and the axis of fixed gauge head
Dead in line with movable gauge head is simultaneously vertically extending, it is characterised in that：Measurement matrix is rotatably arranged on table bar, and
The pivot center of measurement matrix is vertical with the axis of the axis of table bar and fixed gauge head, and described measures matrix and described table
It is provided with driving measurement matrix to rotate swing driving mechanism of the shaft line relative to table bar reciprocally swinging between bar.
2. a kind of dial bore gage measurement bay according to claim 1, it is characterised in that：Described swing driving mechanism bag
Include for driving measurement matrix around the drawing drive mechanism that swings to a direction of pivot center of measurement matrix and being used to drive
The flexible restoring organ that measurement matrix swings in the other direction around the pivot center for measuring matrix.
3. a kind of dial bore gage measurement bay according to claim 2, it is characterised in that：Described drawing drive mechanism bag
The spanner for including bracing wire and being hinged on table bar, bracing wire one end is installed on measurement matrix, the other end is installed on spanner.
4. a kind of dial bore gage measurement bay according to claim 3, it is characterised in that：Described flexible restoring organ is
Removable the first extension spring on table bar in one end, the other end of the first extension spring is by under the removable matrix installed in measurement of screw rod
End.
5. a kind of dial bore gage measurement bay according to claim 1, it is characterised in that：The lower end of measurement matrix also sets up
Have a centering machine, centering machine include two can relative measurement matrix synchronization elastic telescopic support contact, two support contacts
Arrange relative to the plane symmetry being made up of the fixed axis of gauge head and the axis of table bar, and in the line of two support contacts
Point and the dead in line for fixing gauge head, in measurement, two support contacts are touched with the interior wall pressure of measured bore.
6. a kind of dial bore gage measurement bay according to claim 5, it is characterised in that：Described centering machine includes edge
Above-below direction guiding movement is assemblied in the guide cylinder on measurement matrix lower end, is pressed between guide cylinder and measurement matrix along the vertical direction
Stage clip is provided with, two described support contacts are fixed on guide cylinder.
7. a kind of dial bore gage measurement bay according to claim 6, it is characterised in that：The lower end of measurement matrix is provided with leads
It is to mounting hole, removable on guide cylinder to be provided with for being oriented to the backing pin being slidably matched, described pressure with the described mounting hole that is oriented to
Spring is arranged between backing pin and measurement matrix, is additionally provided with and stretches out ear for installing two support contacts on described guide cylinder.
8. a kind of dial bore gage measurement bay according to claim 1, it is characterised in that：A kind of described dial bore gage
The displacement transmission mechanism of measurement bay includes the convex gear between the push rod and movable gauge head of described table bar, and convex gear turns
Shaft line is overlapped and is intersected with the axis of push rod with the pivot center of measurement matrix, described movable gauge head towards convex gear
Side is provided with rack-driving toothing, and described convex gear is provided with for being engaged with rack-driving toothing engaged transmission
Teeth portion and the cam part for coordinating with described push rod.
9. a kind of dial bore gage measurement bay according to any one of claim 1-8, it is characterised in that：Described measurement base
Body includes support block, lower support block, left plate and right plate, and described upper and lower support block is folded between left and right side plate,
And the upper/lower terminal of measurement matrix is located at respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610897261.7A CN106556316B (en) | 2016-10-14 | 2016-10-14 | A kind of dial bore gage measurement bay |
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| CN201610897261.7A CN106556316B (en) | 2016-10-14 | 2016-10-14 | A kind of dial bore gage measurement bay |
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| CN106556316B CN106556316B (en) | 2019-06-07 |
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| CN110887444A (en) * | 2018-09-10 | 2020-03-17 | 上海履善精工科技有限公司 | Inner diameter measuring instrument |
| CN110906833A (en) * | 2019-11-12 | 2020-03-24 | 安庆中船柴油机有限公司 | Utensil is examined in shallow hole measurement of portable |
| CN113587881A (en) * | 2021-08-06 | 2021-11-02 | 沈阳增材智造技术研究院有限公司 | Inner diameter detection equipment |
| CN118009890A (en) * | 2024-04-09 | 2024-05-10 | 成都菲可度网络科技有限公司 | Hardware handheld contrast measurement device |
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| CN110887444A (en) * | 2018-09-10 | 2020-03-17 | 上海履善精工科技有限公司 | Inner diameter measuring instrument |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106556316B (en) | 2019-06-07 |
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