CN105202999A - Caliper tool - Google Patents
Caliper tool Download PDFInfo
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- CN105202999A CN105202999A CN201510558765.1A CN201510558765A CN105202999A CN 105202999 A CN105202999 A CN 105202999A CN 201510558765 A CN201510558765 A CN 201510558765A CN 105202999 A CN105202999 A CN 105202999A
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- sounding rod
- rotary screw
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Abstract
The invention provides a caliper tool which comprises two parallel four-link mechanisms which are arranged along the left and right direction and are assembled together. The two parallel four-link mechanisms are symmetrically arranged with respect to a symmetrical center surface to enable two upper hinge point connecting lines of the two parallel four-link mechanisms to be overlapped and two lower hinge point connecting lines thereof to be overlapped. The symmetrical center surface of the two parallel four-link mechanisms is vertical to the upper hinge point connecting lines; a lower connecting rod of each parallel four-link mechanism is provided with a measuring rod in abutted cooperation with a cylindrical surface of radial dimension to be measured; the two measuring rods are coaxially arranged and are vertical to the symmetrical center surface; and at least one measuring rod is equipped with a dial indicator correspondingly. The caliper tool also comprises a synchronous adjusting mechanism for driving the two parallel four-link mechanisms to adjust in the same direction or in the opposite position synchronously to ensure that the two measuring rods are always coaxially arranged. The two parallel four-link mechanisms allow the caliper tool to be simple in structure and reliable in action, and the measurement precision of the caliper can be effectively ensured.
Description
Technical field
The present invention relates to a kind of clamp frock.
Background technology
Clamp comprise inside callipers and cylindrical clamp, and though be that clamp include hinged two long-armed, two long-armed ends away from jointed shaft are provided with measures pin or measuring claw.During use, cylindrical clamp as shown in Figure 1 can be used to measure cylindrical seal groove as shown in Figure 2, make two of clamp to measure pin top and be pressed on cylindrical outer peripheral face to be measured, realize the measurement to corresponding radial dimension.For large-sized aperture or external diameter, the general measurer that precision is higher is limit cannot directly detect due to range, and mostly general large-scale metrology clamp are dependence experience, and measuring error is comparatively large, can not ensure the accuracy of measurement size.
Be in the Chinese utility model patent of CN201355229Y, disclose a kind of measurement clamp at Authorization Notice No., it is long-armed that this measurement clamp comprise hinged two in one end, one of them long-armed foot is connected with dial gauge, the connection of another long-armed foot helps measuring staff, and, dial gauge and help measuring staff place foot to be respectively equipped with turning joint, is respectively equipped with index dial at two long-armed coercive mechanism and two turning joints place.During use, be ensure measuring accuracy, the contact stem of dial gauge with help measuring staff to be located along the same line, in the radial direction of i.e. circle to be measured, during measurement, make the reading on corresponding index dial identical by rotating two turning joints, and then ensure the sounding rod of dial gauge and help the central axes of measuring staff.
But this measurement clamp are when specifically using, need priority adjustment two turning joint successively, adjustment comparatively bothers, and Adjustment precision mainly relies on the scale on three index dials to adjust as standard, this just requires that index dial is completely corresponding with the position of turning joint and coercive mechanism, require higher to the design of whole measurement clamp, manufacture and assembly precision, measure clamp cost higher.
Summary of the invention
The invention provides a kind of clamp frock, cause measuring the higher technical matters of clamp cost to solve the adjustment mode matched by index dial and turning joint in the measurement clamp that exist in prior art.
The technical scheme of clamp frock provided by the present invention is: a kind of clamp frock, comprise and arranging in left-right direction and two parallel four-bar linkages be assembled together, each parallel four-bar linkage includes connecting rod, lower link and two intermediate connecting rods, two parallel four-bar linkages two on connecting rod be structure as a whole or the fixing assembling of split, the line of two pin joints hinged with corresponding two intermediate connecting rods on the upper connecting rod in each parallel four-bar linkage is upper link point line, the line of two pin joints hinged with corresponding two intermediate connecting rods on lower link is lower link point line, upper link point line and the lower link point line of each parallel four-bar linkage are arranged in parallel, two parallel four-bar linkages are arranged symmetrically with about symcenter face the two upper link point line coincident making two parallel four-bar linkages, two lower link point line coincident, the symcenter face of two parallel four-bar linkages is perpendicular to described upper link point line, the lower link of each parallel four-bar linkage is respectively equipped with for pushing up the sounding rod of press fit with the face of cylinder of radial dimension to be measured, two sounding rods are coaxially arranged and respectively perpendicular to described symcenter face, on at least one sounding rod, correspondence is equipped with dial gauge, described clamp frock also comprise for drive two parallel four-bar linkage locking phases to, opposing adjustment is to ensure the synchronous adjusting mechanism that described two sounding rods are coaxially arranged all the time.
An intermediate connecting rod in one of them parallel four-bar linkage in two parallel four-bar linkages and an intermediate connecting rod in another parallel four-bar linkage are arranged vertically to form symmetrical connection rod set about described symcenter face, two intermediate connecting rods forming symmetrical connection rod set are two kinematic links, described synchronous adjusting mechanism for for drive two kinematic link locking phases to, opposing swing with drive two parallel four-bar linkage locking phases to, the pull bar structure of opposing adjustment, two drive divisions be in transmission connection with two kinematic link one_to_one corresponding of pull bar structure are arranged vertically about described symcenter face, pull bar structure adopts following wherein a kind of structure:
(1) pull bar structure comprises and has left-handed thread section and right-handed thread section and to walk abreast the left-right rotary screw rod and the left-hand threaded nut of corresponding spinning in left-handed thread section arranged with described upper link point line, the right-handed nut of corresponding spinning in right-handed thread section, left-hand threaded nut and right-handed nut as two drive divisions of described pull bar structure corresponding be installed on two kinematic links, left-right rotary screw rod on the bearing of trend of described upper link point line with described two on the relative fixed and arranged of connecting rod, left-right rotary bolt rotary drives left-hand threaded nut, right-handed nut moves along left-right rotary screw rod and then drives two kinematic links in opposite directions synchronous, opposing swing,
(2) pull bar structure comprises by two hinged driving stems of middle pin joint, described middle pin joint is positioned at described symcenter face all the time in reciprocating movement along the vertical direction, two driving stems and two kinematic links hinge mounted one to one, two pin joints that two driving stems and two kinematic links are hinged are two drive divisions of described pull bar structure, in described central pivot point along the vertical direction reciprocating movement by two driving stems drive two kinematic links synchronous in opposite directions, opposing swing.
Described pull bar structure comprises described left-right rotary screw rod and the left-hand threaded nut of corresponding spinning on left-right rotary screw rod, right-handed nut, be provided with for limiting the left and right position limiting structure of left-right rotary screw rod in himself axially movement on described two between connecting rod and left-right rotary screw rod, left and right position limiting structure comprises stopper slot and the limited block with stopper slot inserting, on left-right rotary screw axial, two-way block is spacing coordinates for limited block and stopper slot, and one of them in described limited block and stopper slot is installed on left-right rotary screw rod, another to be installed on described two on connecting rod.
Limited block in described left and right position limiting structure is arranged on described left-right rotary screw rod, and limited block is the manual knob being fixedly arranged on described left-hand threaded nut and right-handed nut's middle position on left-right rotary screw axial.
Described clamp frock is the cylindrical clamp for measuring workpieces cylindrical radial dimension, and two kinematic links are arranged in the phase of two parallel four-bar linkages to the inside, and two kinematic links are the arcuate structure of evagination.
Two upper link points that on described two, connecting rod and two kinematic links are hinged overlap and arrange.
The described sounding rod being equipped with dial gauge is dynamic sounding rod, dynamic sounding rod is assemblied in orienting sleeve along himself axially directed movement, be provided with between orienting sleeve and dynamic sounding rod and apply to force dynamic masthead of measuring to be pressed in spring on the face of cylinder of described radial dimension to be measured to dynamic sounding rod, between orienting sleeve and dynamic sounding rod, be provided with the disconnecting prevention structure that orienting sleeve deviate under the action of the spring by anti-stop sounding rod, described dial gauge comprises the watchcase of fixing assembling with orienting sleeve and the coaxially arranged and measurement contact stem that is that driven by dynamic sounding rod with dynamic sounding rod.
Described disconnecting prevention structure is the removable interstage sleeve be fixedly assemblied in orienting sleeve, and interstage sleeve to be sleeved on described dynamic sounding rod and to press block to coordinate with the block flange top that described dynamic sounding rod is provided with.
Described orienting sleeve is the lower link of the parallel four-bar linkage being provided with described dial gauge.
Sounding rod on one of them parallel four-bar linkage in described two parallel four-bar linkages is described dynamic sounding rod, sounding rod on another parallel four-bar linkage is the quiet sounding rod be installed on the lower link of this parallel four-bar linkage.
The invention has the beneficial effects as follows: clamp frock provided by the present invention comprises two parallel four-bar linkages be assembled together, two parallel four-bar linkages are arranged symmetrically with the two upper link point line coincident making two parallel four-bar linkages, two lower link point line coincident, and the symcenter face of two parallel four-bar linkages is perpendicular to upper link point line, the lower link of each parallel four-bar linkage is respectively equipped with for pushing up the sounding rod of press fit with the face of cylinder of radial dimension to be measured, two sounding rod coaxial vertical are in symcenter face, like this, carry out in opposite directions being driven two parallel four-bar linkages by synchronous adjusting mechanism, effectively can ensure that two sounding rods are coaxially arranged all the time during opposing adjustment, and then ensure the measuring accuracy effectively ensureing clamp, whole clamp tool structure is simple, reliable in action.Owing to being provided with dial gauge at least one sounding rod, directly can read measurement result by dial gauge, improve and measure efficiency.
Further, by pull bar structure promote two kinematic links in two parallel four-bar linkages in opposite directions, opposing swing with realize two parallel four-bar linkages in opposite directions, opposing synchronous adjustment, synchronous adjusting mechanism is simple and reliable, easy to operate.
Further, carry out left and right by left and right position limiting structure to the left-right rotary screw rod in pull bar structure spacing, position limiting structure is simple, design, manufactures all more for convenience.
Further, the limited block in the position limiting structure of left and right is the manual knob being installed in left-hand threaded nut and right-handed nut's center position, manually can drive left-right rotary bolt rotary by knob like this, and then realize the synchronous adjustment to two parallel four-bar linkages.
Further, clamp frock is cylindrical clamp, because kinematic link is arranged in the phase of two parallel four-bar linkages to the inside, for reducing kinematic link to measuring the impact caused, two kinematic links are designed to the arcuate structure of evagination, to dodge workpiece for measurement as much as possible.
Further, two upper link points that on two, connecting rod and two kinematic links are hinged overlap and arrange, can reduce the volume of whole clamp frock like this.
Further, dynamic sounding rod guiding is assemblied in orienting sleeve, and is provided with spring between orienting sleeve and dynamic sounding rod to be pressed on the face of cylinder of radial dimension to be measured to dynamic sounding rod applying elastic acting force to force dynamic masthead of measuring, and ensures measuring accuracy.
Further, orienting sleeve is the lower link of respective parallel four-bar mechanism, can simplify the one-piece construction of clamp frock.
Further, adopt quiet sounding rod and the supporting measurement of dynamic sounding rod, can measuring accuracy be improved, simplified measurement step, improve and measure efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional cylindrical clamp;
Fig. 2 is the structural representation of the axis body with cylindrical seal groove;
Fig. 3 is the structural representation of a kind of embodiment of clamp frock provided by the present invention;
Fig. 4 is the left side schematic diagram of the frock of clamp shown in Fig. 3;
Fig. 5 is the principle schematic of the frock of clamp shown in Fig. 3;
Fig. 6 is A place enlarged drawing in Fig. 3;
Fig. 7 is B place enlarged drawing in Fig. 3;
Fig. 8 is C place enlarged drawing in Fig. 4;
Fig. 9 is the structural representation of upper connecting rod ASSY in Fig. 3;
Figure 10 is the side view of upper connecting rod ASSY shown in Fig. 9;
Figure 11 is the structural representation of right side lower link in Fig. 3;
Figure 12 is the structural representation of dynamic sounding rod in Fig. 3;
Figure 13 is the structural representation of quiet sounding rod in Fig. 3.
Embodiment
As shown in Fig. 3 to Figure 13, a kind of embodiment of clamp frock, clamp frock in this embodiment is specially cylindrical clamp, it comprises arranges and two parallel four-bar linkages be assembled together in left-right direction, two parallel four-bar linkages are left parallel four-bar mechanism 100 and right side parallel four-bar linkage 200, each parallel four-bar linkage includes connecting rod, lower link and two intermediate connecting rods, two parallel four-bar linkages two on connecting rod be structure as a whole and form upper connecting rod ASSY 1, the line of two pin joints hinged with corresponding two intermediate connecting rods on the upper connecting rod in each parallel four-bar linkage is upper link point line, the line of two pin joints hinged with corresponding two intermediate connecting rods on lower link is lower link point line, upper link point line and the lower link point line of each parallel four-bar linkage are arranged in parallel, two parallel four-bar linkages are arranged symmetrically with about symcenter face 300 the two upper link point line coincident making two parallel four-bar linkages, two lower link point line coincident, the symcenter face 300 of two parallel four-bar linkages is perpendicular to described two upper link point lines.
In the present embodiment, upper connecting rod ASSY 1 is T-type structure, and upper connecting rod ASSY comprises connecting rod 31, right side lower link 32 and realizing middle limiting bar 33 on the left side that is wholely set, and the bottom of realizing middle limiting bar 33 is provided with left and right stopper slot 34.
Left parallel four-bar mechanism 100 specifically comprises left side upper connecting rod 31, left side first intermediate connecting rod 2, left side second intermediate connecting rod 3 and left side lower link 4, and on left side, connecting rod 31 and left side lower link 4 correspondence is hinged with left side first intermediate connecting rod 2, left side second intermediate connecting rod 3.
Right side parallel four-bar linkage 200 specifically comprises right side upper connecting rod 32, right side first intermediate connecting rod 42, right side second intermediate connecting rod 43 and right side lower link 5, and on right side, connecting rod 32 and right side lower link 5 correspondence is hinged with right side first intermediate connecting rod 42, right side second intermediate connecting rod 43.
In the present embodiment, left side lower link 4 is tube-in-tube structure, correspondingly in tube-in-tube structure is fixedly equipped with quiet sounding rod 15, and quiet sounding rod 15 has the top pressure contact for pushing up the face of cylinder being pressed in radial dimension to be measured.Quiet sounding rod 15 herein specifically has the adjustment draw-in groove 150 extended in left-right direction, by being fixed on the lower link 4 of left side by quiet sounding rod 15 with the lock-screw 16 of adjustment draw-in groove 150 corresponding matching.When needing the adjustment carried out in a big way, by unscrewing
Right side lower link 5 is the orienting sleeve that the guide direction direction parallel with the upper link point line of right side parallel four-bar linkage extends, orienting sleeve and right side first intermediate connecting rod 42, right side the second intermediate connecting rod 43 is hinged, in orienting sleeve, guiding movement is equipped with dynamic sounding rod 14, dynamic sounding rod 14 has the top pressure contact for pushing up the face of cylinder being pressed in radial dimension to be measured equally, and be provided with between orienting sleeve and dynamic sounding rod 14 and apply to force dynamic masthead of measuring to be pressed in spring 17 on the face of cylinder of described radial dimension to be measured to dynamic sounding rod, the disconnecting prevention structure that orienting sleeve deviate under the action of the spring by anti-stop sounding rod is provided with between orienting sleeve and dynamic sounding rod 14, disconnecting prevention structure is herein the removable interstage sleeve 13 be fixedly assemblied in orienting sleeve, interstage sleeve 13 is sleeved on to push up on described dynamic sounding rod 14 and with the block flange 140 that described dynamic sounding rod 14 is provided with presses block to coordinate.Further, right side lower link 5 is also installed with dial gauge 18, dial gauge 18 has and to be fixedly assemblied in watchcase with orienting sleeve and the coaxially arranged and measurement contact stem that is that driven by dynamic sounding rod 14 with dynamic sounding rod 14.
Centre, left side second 3 in left parallel four-bar mechanism and right side second intermediate connecting rod 43 in the parallel four-bar linkage of right side are arranged vertically to form symmetrical connection rod set about described symcenter face, and two intermediate connecting rods forming symmetrical connection rod set are two kinematic links.
Described clamp frock also comprise for drive two parallel four-bar linkage locking phases to, opposing adjustment is to ensure the synchronous adjusting mechanism that described two sounding rods are coaxially arranged all the time, synchronous adjusting mechanism herein for for drive two kinematic link locking phases to, opposing swing with drive two parallel four-bar linkage locking phases to, the pull bar structure of opposing adjustment, two drive divisions be in transmission connection with two kinematic link one_to_one corresponding of pull bar structure are arranged vertically about described symcenter face, pull bar structure in the present embodiment specifically comprises left-handed thread section and right-handed thread section and to walk abreast left-right rotary screw rod 9 and the corresponding spinning left-hand threaded nut 10 in left-handed thread section arranged with described upper link point line, the right-handed nut 11 of corresponding spinning in right-handed thread section, left-hand threaded nut 10 and right-handed nut 11 as two drive divisions of described pull bar structure corresponding be installed on two kinematic links, left-right rotary screw rod 9 on the bearing of trend of described upper link point line with described two on the relative fixed and arranged of connecting rod, left-right rotary screw rod 9 rotating drive left-hand threaded nut 10, right-handed nut 11 moves along left-right rotary screw rod and then drives two kinematic links in opposite directions synchronous, opposing swing.
In the present embodiment, be provided with for limiting the left and right position limiting structure of left-right rotary screw rod 9 in himself axially movement between upper connecting rod ASSY 1 and left-right rotary screw rod 9, the stopper slot 34 on connecting rod ASSY 1 and the limited block being installed in the inserting corresponding to stopper slot 34 on left-right rotary screw rod 9 is arranged on described in left and right position limiting structure comprises, on left-right rotary screw axial, two-way block is spacing coordinates for limited block and stopper slot, limited block is specially the manual knob 8 being fixedly arranged on described left-hand threaded nut and right-handed nut's middle position on left-right rotary screw axial, manual knob 8 is especially by removable being fixed on left-right rotary screw rod 9 of finger 7.During use, drive left-right rotary bolt rotary by rotation manual knob 8.
In the present embodiment, because clamp frock is cylindrical clamp, for reducing the interference to workpiece for measurement, two kinematic links are arranged in the phase of two parallel four-bar linkages to the inside, and two kinematic links are the arcuate structure of evagination.
In addition, in the present embodiment, two pin joints be hinged due to two kinematic links and upper connecting rod ASSY overlap and arrange, two kinematic links are hinged on upper connecting rod ASSY especially by the screw 19 not affecting kinematic link rotation adjustment, and on screw 19, correspondence is installed with the set nut 6 that can be fixed on by kinematic link after two kinematic links swings are adjusted to the right place on connecting rod ASSY.The locking device that two parallel four-bar linkages are locked after being formed and adjusting to the right place by set nut 6 herein and screw 19.
The principle of above-mentioned clamp frock as shown in Figure 5, when manual knob 8 drives left-right rotary screw rod 9 to rotate, at left-hand threaded nut 10, under the effect of right-handed nut 11, make kinematic link in two parallel four-bar linkages in opposite directions, opposing swing, and drive lower link and two sounding rod synchronizing movings, according to parallel four-bar linkage principle, the axis of two sounding rods can remain coincidence status, realize above-mentioned clamp frock to adjust measurement size size and to lock with set nut 6 and screw 19, dynamic sounding rod 14 can shrink or stretches out and drive the dial gauge beat of pointer under the effect of resistance and spring force, realize the measurement of the radial dimension on the face of cylinder.
During concrete measurement, according to footpath size at the bottom of the part outer diameter groove that will detect, rotary manual turn-knob 8, adjust the distance between two sounding rods, make between sounding rod, to be dimensioned slightly smaller than bottom land footpath size between two, with the survey instrument with bottom land footpath consistent size, be placed between two sounding rods, by dial gauge to zero, and with set nut 6 and screw 19, two parallel four-bar linkages are locked, hand carries clamp frock vertically downward and make two sounding rods natures by bottom land footpath, and the dial gauge reading of peak is just bottom land footpath size.
In above-described embodiment, in two sounding rods, one of them sounding rod is dynamic sounding rod, another is quiet sounding rod, and this spline structure is comparatively simple.In other embodiments, also two sounding rods all can be designed to the dynamic sounding rod being provided with dial gauge.
In above-described embodiment, dynamic sounding rod is the special pole arranged with dial gauge split, and in other embodiments, dynamic sounding rod also can be the contact stem on dial gauge or the extension rod be fixedly installed with the contact stem on dial gauge.
The structure that in above-described embodiment, pull bar structure adopts left-right rotary screw rod and left-hand threaded nut, right-handed nut matches.In other embodiments, pull bar structure can be also other structures: pull bar structure comprises by two hinged driving stems of middle pin joint, described middle pin joint is positioned at described symcenter face all the time in reciprocating movement along the vertical direction, two driving stems and two kinematic links hinge mounted one to one, two pin joints that two driving stems and two kinematic links are hinged are two drive divisions of described pull bar structure, in described central pivot point along the vertical direction reciprocating movement, drive two kinematic links in opposite directions synchronous by two driving stems, opposing swing.
In above-described embodiment, be located on left-right rotary screw rod to the left-right rotary screw rod limited block carried out in the spacing left and right position limiting structure in left and right, stopper slot is located at upper connecting rod ASSY, in other embodiments, also stopper slot can be arranged on left-right rotary screw rod, and limited block is arranged on upper connecting rod ASSY.
In above-described embodiment, two upper connecting rods are wholely set and form connecting rod ASSY, and in other embodiments, two upper connecting rods also split the mode such as can be bolted and to be fixedly assembled together.Two kinematic links overlap with the upper link point of upper connecting rod ASSY, in other embodiments, also can by arranged apart for the upper link point of two kinematic links and upper connecting rod ASSY, as long as ensure two upper link point line coincident of two parallel four-bar linkages.
In above-described embodiment, clamp frock is outer circle tool set, and now, the top pressure contact of two sounding rods is arranged in opposite directions.In other embodiments, also can by the opposing setting of the top of two sounding rods pressure contact, now, clamp frock forms the inside callipers of the face of cylinder radial dimension for measuring endoporus, now, shape and the size of the concrete bar of parallel four-bar linkage can be adjusted according to actual needs.
In above-described embodiment, the upper connecting rod of two parallel four-bar linkages and lower link are straight-bar, in other embodiments, also according to actual needs upper and lower link design can be become knee structure, as long as make the upper link point line of each parallel four-bar linkage and lower link point line be arranged in parallel, two parallel four-bar linkages are arranged symmetrically with the two upper link point line coincident, the two lower link point line coincident that make two parallel four-bar linkages.
Claims (10)
1. a clamp frock, it is characterized in that: comprise and arranging in left-right direction and two parallel four-bar linkages be assembled together, each parallel four-bar linkage includes connecting rod, lower link and two intermediate connecting rods, two parallel four-bar linkages two on connecting rod be structure as a whole or the fixing assembling of split, the line of two pin joints hinged with corresponding two intermediate connecting rods on the upper connecting rod in each parallel four-bar linkage is upper link point line, the line of two pin joints hinged with corresponding two intermediate connecting rods on lower link is lower link point line, upper link point line and the lower link point line of each parallel four-bar linkage are arranged in parallel, two parallel four-bar linkages are arranged symmetrically with about symcenter face the two upper link point line coincident making two parallel four-bar linkages, two lower link point line coincident, the symcenter face of two parallel four-bar linkages is perpendicular to described upper link point line, the lower link of each parallel four-bar linkage is respectively equipped with for pushing up the sounding rod of press fit with the face of cylinder of radial dimension to be measured, two sounding rods are coaxially arranged and respectively perpendicular to described symcenter face, on at least one sounding rod, correspondence is equipped with dial gauge, described clamp frock also comprise for drive two parallel four-bar linkage locking phases to, opposing adjustment is to ensure the synchronous adjusting mechanism that described two sounding rods are coaxially arranged all the time.
2. clamp frock according to claim 1, it is characterized in that: an intermediate connecting rod in one of them parallel four-bar linkage in two parallel four-bar linkages and an intermediate connecting rod in another parallel four-bar linkage are arranged vertically to form symmetrical connection rod set about described symcenter face, two intermediate connecting rods forming symmetrical connection rod set are two kinematic links, described synchronous adjusting mechanism for for drive two kinematic link locking phases to, opposing swing with drive two parallel four-bar linkage locking phases to, the pull bar structure of opposing adjustment, two drive divisions be in transmission connection with two kinematic link one_to_one corresponding of pull bar structure are arranged vertically about described symcenter face, pull bar structure adopts following wherein a kind of structure:
(1) pull bar structure comprises and has left-handed thread section and right-handed thread section and to walk abreast the left-right rotary screw rod and the left-hand threaded nut of corresponding spinning in left-handed thread section arranged with described upper link point line, the right-handed nut of corresponding spinning in right-handed thread section, left-hand threaded nut and right-handed nut as two drive divisions of described pull bar structure corresponding be installed on two kinematic links, left-right rotary screw rod on the bearing of trend of described upper link point line with described two on the relative fixed and arranged of connecting rod, left-right rotary bolt rotary drives left-hand threaded nut, right-handed nut moves along left-right rotary screw rod and then drives two kinematic links in opposite directions synchronous, opposing swing,
(2) pull bar structure comprises by two hinged driving stems of middle pin joint, described middle pin joint is positioned at described symcenter face all the time in reciprocating movement along the vertical direction, two driving stems and two kinematic links hinge mounted one to one, two pin joints that two driving stems and two kinematic links are hinged are two drive divisions of described pull bar structure, in described central pivot point along the vertical direction reciprocating movement by two driving stems drive two kinematic links synchronous in opposite directions, opposing swing.
3. clamp frock according to claim 2, it is characterized in that: described pull bar structure comprises described left-right rotary screw rod and the left-hand threaded nut of corresponding spinning on left-right rotary screw rod, right-handed nut, be provided with for limiting the left and right position limiting structure of left-right rotary screw rod in himself axially movement on described two between connecting rod and left-right rotary screw rod, left and right position limiting structure comprises stopper slot and the limited block with stopper slot inserting, on left-right rotary screw axial, two-way block is spacing coordinates for limited block and stopper slot, one of them in described limited block and stopper slot is installed on left-right rotary screw rod, another to be installed on described two on connecting rod.
4. clamp frock according to claim 3, it is characterized in that: the limited block in described left and right position limiting structure is arranged on described left-right rotary screw rod, limited block is the manual knob being fixedly arranged on described left-hand threaded nut and right-handed nut's middle position on left-right rotary screw axial.
5. the clamp frock according to Claims 2 or 3 or 4, it is characterized in that: described clamp frock is the cylindrical clamp for measuring workpieces cylindrical radial dimension, two kinematic links are arranged in the phase of two parallel four-bar linkages to the inside, and two kinematic links are the arcuate structure of evagination.
6. the clamp frock according to Claims 2 or 3 or 4, is characterized in that: two upper link points that on described two, connecting rod and two kinematic links are hinged overlap and arrange.
7. clamp frock according to any one of claim 1 to 4, it is characterized in that: the described sounding rod being equipped with dial gauge is dynamic sounding rod, dynamic sounding rod is assemblied in orienting sleeve along himself axially directed movement, be provided with between orienting sleeve and dynamic sounding rod and apply to force dynamic masthead of measuring to be pressed in spring on the face of cylinder of described radial dimension to be measured to dynamic sounding rod, the disconnecting prevention structure that orienting sleeve deviate under the action of the spring by anti-stop sounding rod is provided with between orienting sleeve and dynamic sounding rod, described dial gauge comprises the watchcase of fixing assembling with orienting sleeve and the coaxially arranged and measurement contact stem that is that driven by dynamic sounding rod with dynamic sounding rod.
8. clamp frock according to claim 7, is characterized in that: described disconnecting prevention structure is the removable interstage sleeve be fixedly assemblied in orienting sleeve, and interstage sleeve to be sleeved on described dynamic sounding rod and to press block to coordinate with the block flange top that described dynamic sounding rod is provided with.
9. clamp frock according to claim 7, is characterized in that: described orienting sleeve is the lower link of the parallel four-bar linkage being provided with described dial gauge.
10. clamp frock according to claim 9, is characterized in that: the sounding rod on one of them parallel four-bar linkage in described two parallel four-bar linkages is described dynamic sounding rod, sounding rod on another parallel four-bar linkage is the quiet sounding rod be installed on the lower link of this parallel four-bar linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558765.1A CN105202999B (en) | 2015-09-06 | 2015-09-06 | A kind of clamp frock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558765.1A CN105202999B (en) | 2015-09-06 | 2015-09-06 | A kind of clamp frock |
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| CN105202999A true CN105202999A (en) | 2015-12-30 |
| CN105202999B CN105202999B (en) | 2018-01-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388929A (en) * | 2017-08-29 | 2017-11-24 | 上海江南轧辊有限公司 | A kind of measuring scale |
| CN110567412A (en) * | 2019-10-25 | 2019-12-13 | 国网河南省电力公司电力科学研究院 | Device and method for measuring edge distance of polygonal crimped cable |
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| GB2229272A (en) * | 1989-03-03 | 1990-09-19 | Simon Paul Davies | Bisecting caliper |
| CN201260668Y (en) * | 2008-10-10 | 2009-06-24 | 四川国纳科技有限公司 | Inside callipers |
| CN201355229Y (en) * | 2008-12-29 | 2009-12-02 | 中国石化集团江汉石油管理局第四机械厂 | Measurement caliper |
| CN103727860A (en) * | 2012-10-12 | 2014-04-16 | 严红 | Tool for detecting wall thickness and difference |
| CN204924126U (en) * | 2015-09-06 | 2015-12-30 | 河南平高电气股份有限公司 | Calliper frock |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388929A (en) * | 2017-08-29 | 2017-11-24 | 上海江南轧辊有限公司 | A kind of measuring scale |
| CN107388929B (en) * | 2017-08-29 | 2023-09-01 | 上海江南轧辊有限公司 | Measuring ruler |
| CN110567412A (en) * | 2019-10-25 | 2019-12-13 | 国网河南省电力公司电力科学研究院 | Device and method for measuring edge distance of polygonal crimped cable |
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| CN105202999B (en) | 2018-01-09 |
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