CN108204795A - A kind of measuring arm with self-balancing axis - Google Patents
A kind of measuring arm with self-balancing axis Download PDFInfo
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- CN108204795A CN108204795A CN201810295264.2A CN201810295264A CN108204795A CN 108204795 A CN108204795 A CN 108204795A CN 201810295264 A CN201810295264 A CN 201810295264A CN 108204795 A CN108204795 A CN 108204795A
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- 238000010276 construction Methods 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 16
- 230000005484 gravity Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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Abstract
The present invention relates to a kind of measuring arm with self-balancing axis, including：Fixing axle, the fixing axle are hollow structure, and the back end surface of fixing axle is provided with axial fixing axle annular groove；Turning set, the turning set include rotation side cover corresponding with the back end surface of fixing axle and with the axial parallel upper cover arc plate of fixing axle；The rotation side cover medial surface is provided with turning set inner groovy, and turning set inner groovy is corresponding with fixing axle annular groove；Connecting shaft, the connecting shaft are rotatably connected by bearing with fixing axle, and one end of the connecting shaft portion is connect with rotation side cover；Counterbalancing torsion springs, the counterbalancing torsion springs are arranged in fixing axle annular groove, and the one end of counterbalancing torsion springs is fixedly installed in turning set inner groovy, and the other end is connect with fixing axle annular groove.The present invention provides that can realize automatic equalising torque, reach stable center of gravity, reduce volume and weight, reduce the measuring arm of the installation difficulty of counterbalancing torsion springs.
Description
Technical field
The present invention relates to measuring arm self-balancing control field, especially a kind of measuring arm with self-balancing axis.
Background technology
Measuring arm is widely used in mold and accessory size as a kind of precision three-dimensional dimension measurement tool and assembling detects
It measures, such as in reverse-engineering, shape-designing, Comparison application.Its structure is by pedestal, multiple kinematic axis（Usually 6-7
It is a）And gauge head composition, there is the characteristics of small, portable use, precision is high, unlimited rotary, and no dead point measures.And kinematic axis
The structure of upper relative motion mainly includes rotary shaft and fixing axle two parts again.Measuring arm is in wheel measuring, except pedestal and
One kinematic axis（That is A axis）In addition, with measured point change in location respective change occurs for the position of centre of gravity of other parts, thus needs logical
Cross its balance shaft（That is B axle）The variation of interior self balancing device autobalance center of gravity torque, will be positioned at the gauge head of measuring arm end
Stable position carries out contact or non-contact in space any position in measurement range and then with lever gauge head or laser feeler
Formula accurately measures, and is then calculated according to the feedback position information of the position sensor in each kinematic axis and obtains the accurate of measured point
Location information.Therefore the self balancing device of measuring arm is to realize its accurate basis for measuring function.Measuring arm balance shaft it is main
Structure includes self balancing device, Bearning mechanism and angular encoder.Due to measuring arm it is small the characteristics of, self balancing device
It is the abundant sharp rotary shaft of balance shaft and fixing axle two-part structure, it is opposite to realize to connect the two parts by counterbalancing torsion springs
Self-balancing in movement.The key of self balancing device function is exactly that device can remove pedestal and the first kinematic axis according to measuring arm
Variation of the center of gravity of other parts in spatial position automatically adjusts the torsion of counterbalancing torsion springs in addition, to realize rotary shaft and fixing axle
Torsion torque caused by counterbalancing torsion springs and measuring arm other parts in addition to pedestal and measured axis in arbitrary relative position
Gravity reach away between moment balance.Then measuring arm passes through coaxially connected position sensor and inductively measures location information.
This requires that self balancing device accurately installs counterbalancing torsion springs in installation process can be only achieved equalising torque.While measuring arm is just
The characteristics of taking measurement requires its volume and weight small as possible.If self balancing device volume and weight is excessive, not only surveying
Excessive station can be occupied during amount, inconvenience is mobile, while is also unfavorable for measuring arm and stablizes gauge head position of centre of gravity when measuring.And again
Measuring excessive also can accordingly increase counterbalancing torsion springs size and torsion specification, while the strength of parts to match with counterbalancing torsion springs is also required to
Accordingly enhanced.It will act as the preferred volume and weight for increasing self balancing device in this way.Traditional measurement arm（Such as Figure 10-12）
Balance shaft solution is by connecting shaft 4 successively horizontal series self balancing device 1, Bearning mechanism 2 and angular encoder 3, is put down
Weighing apparatus axis rotary shaft 5 is fixedly connected with connecting shaft 4 by fastener 7, Bearning mechanism 2 be located at connecting shaft 4 and balance shaft fixing axle 6 it
Between, the relative rotation between connecting shaft 4 and balance shaft fixing axle 6 is ensured by bearing.Counterbalancing torsion springs 8 are rotated mounted on balance shaft
Between axis 5 and balance shaft fixing axle 6.The both ends of counterbalancing torsion springs 8 are stuck in oblique block 9 and the slot of balance shaft fixing axle 6.
Oblique block 9 is fixedly connected by fastener 7 with balance shaft rotary shaft 5.Connecting shaft 4 passes through 8 inner ring of counterbalancing torsion springs when installation is complete.
Since balance shaft is using horizontal series mounting means arrangement self balancing device, Bearning mechanism and angular encoder, this causes to measure
Arm balance shaft horizontal length is larger, increases balance shaft overall volume and weight, and is also unfavorable for measuring arm during wheel measuring
The stabilization of self-position.Simultaneously as it needs that counterbalancing torsion springs are accurately installed in installation process, to ensure rotary shaft and fixing axle
Equalising torque when at an arbitrary position, and the slot position that counterbalancing torsion springs are blocked in traditional measuring arm solution is fixed,
Counterbalancing torsion springs can only be adjusted by adjusting oblique block, and rotary shaft and fixing axle are all the structures of relative closure, this to pacify
It fills extremely difficult, needs, by constantly recycling dismounting, to adjust oblique stop location, then test is installed again, can just find conjunction in this way
Suitable counterbalancing torsion springs installation site, while this also results in huge artificial and time cost.
Invention content
The present invention is above-mentioned in order to solve the problems, such as, automatic equalising torque can be realized by providing, and reaches and stablizes weight
The heart reduces volume and weight, reduces the measuring arm of the installation difficulty of counterbalancing torsion springs.
The technical solution adopted by the present invention to solve the technical problems is：A kind of measuring arm with self-balancing axis, including：
Fixing axle, the fixing axle are hollow structure, and the back end surface of fixing axle is provided with axial fixing axle annular groove；
Turning set, the turning set include rotation side cover corresponding with the back end surface of fixing axle and are axially put down with fixing axle
Capable upper cover arc plate；The rotation side cover medial surface is provided with turning set inner groovy, turning set inner groovy and fixing axle annular
Slot corresponds to；
Connecting shaft, the connecting shaft are rotatably connected by bearing with fixing axle, and one end of the connecting shaft portion is connect with rotation side cover；
Counterbalancing torsion springs, the counterbalancing torsion springs are arranged in fixing axle annular groove, and the one end of counterbalancing torsion springs is fixedly installed in rotation
It covers in inner groovy, the other end is connect with fixing axle annular groove.
Preferably, one end of the counterbalancing torsion springs is pacified by the adjustable torsion spring clip being arranged on turning set inner groovy
Loaded in turning set inner groovy, the other end is installed on fixing axle by being arranged on the fixation torsional spring clip of fixing axle annular groove bottom
Annular groove bottom.
Preferably, the connecting shaft be hollow structure, outer be the concentric cylinder axle construction of level Four, the fourth stage
Cylindrical shaft outer is socketed with encoder.
Preferably, be the concentric hollow circuit cylinder of three-level on the inside of the turning set, the first order is turning set inner groovy, second
Grade is set to the third level on the inside of upper cover arc plate.
Preferably, the ring width of the fixing axle annular groove is more than the line footpath of counterbalancing torsion springs.
Preferably, the adjustable torsion spring clip is ear shape structure, the dimension width and turning set of adjustable torsion spring clip
The hollow cylindrical structure of inner groovy is mutually matched.
Preferably, the internal face of the fixing axle annular groove is provided with Bearning mechanism sleeve, Bearning mechanism sleeve is two
The hollow structure of grade hollow circuit cylinder pore structure, first order hollow circuit cylinder pore structure and fixing axle is mutually matched.
Preferably, the fixation torsional spring clip is divided into two-stage, the shape of the first order and the outer wall of fixing axle annular groove
Face is mutually matched；The shape of the second level and the outer arcuate of fixing axle are mutually matched.
Preferably, the Bearning mechanism is two bearings；The hollow structure internal face of the fixing axle is provided with convex
Ring, two bearings are fastened on bulge loop two side ends respectively.
Preferably, the turning set and one end of rotation side cover opposition are provided with capping；The top of the upper cover arc plate
The kinematic axis axle sleeve being provided through；The fixing axle bottom is provided with fixed seat.
The beneficial effects of the invention are as follows：A kind of measuring arm with self-balancing axis, connecting shaft directly connect Bearning mechanism and
Bearning mechanism is installed between connecting shaft and fixing axle internal axle sleeve by angular encoder.Counterbalancing torsion springs are mounted on makes fixation in this way
Between axis exterior and interior axle sleeves.Bearning mechanism can be positioned among counterbalancing torsion springs inner ring in this way, substantially reduce kinematic axis water
Square to length, reduce volume and weight.Turning set and fixing axle in the position of installation counterbalancing torsion springs respectively there are one empty slot,
By two relatively independent torsional spring clip stable equilibrium torsional spring both ends, can be done directly from outside counterbalancing torsion springs installation and
Adjustment, the installation difficulty substantially reduced.Bar shaped empty slot simultaneously on turning set is longer, has given the tune of adjustable torsion spring card slot increasing
Whole space can be adjusted in larger orientation and realize balance to achieve the purpose that accurately to install counterbalancing torsion springs, simultaneously
It also reduces to the technology requirement of counterbalancing torsion springs and its manufacture difficulty.Bearning mechanism sleeve uses softer material as balance simultaneously
It is to provide protection and buffering for Bearning mechanism that torsional spring, which deforms upon, essence that can be with effective guarantee measuring arm during use is measured
Spend consistency.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram of the measuring arm balance shaft of the present invention with self balancing device；
Fig. 2 is the side portion structure schematic diagram of the measuring arm balance shaft of the present invention with self balancing device；
Fig. 3 is the positive structure schematic of the measuring arm balance shaft of the present invention with self balancing device；
Fig. 4 is the present invention looks up structural representation of the measuring arm balance shaft of the present invention with self balancing device；
Fig. 5 is that the measuring arm balance shaft of the present invention with self balancing device faces cross-sectional view；
Fig. 6 is the left view cross-sectional view of the measuring arm balance shaft of the present invention with self balancing device；
Fig. 7 is that the right side of the measuring arm balance shaft of the present invention with self balancing device regards cross-sectional view；
Fig. 8 is the adjustable torsion spring yoke configurations schematic diagram of the measuring arm balance shaft of the present invention with self balancing device；
Fig. 9 is the fixation torsional spring yoke configurations schematic diagram of the measuring arm balance shaft of the present invention with self balancing device；
Figure 10-12 is traditional measurement arm balance shaft structure schematic diagram.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
Embodiment 1
A kind of measuring arm with self-balancing axis as shown in Figs. 1-5, including：Fixing axle 6, the fixing axle 6 are hollow knot
Structure, the back end surface of fixing axle 6 are provided with axial fixing axle annular groove 61；
Turning set 5, the turning set 5 include it is corresponding with the back end surface of fixing axle 6 rotation side cover 51 and with fixing axle 6
Axial parallel upper cover arc plate 52；51 medial surface of rotation side cover is provided with turning set inner groovy 53, turning set inner groovy
53 is corresponding with fixing axle annular groove 61；
Connecting shaft 4, the connecting shaft 4 are rotatably connected by Bearning mechanism 2 with fixing axle 6,4 one end of connecting shaft and rotating side
Lid 51 connects；
Counterbalancing torsion springs 8, the counterbalancing torsion springs 8 are arranged in fixing axle annular groove 61, and the one end of counterbalancing torsion springs 8 is fixedly installed in
In turning set inner groovy 53, the other end is connect with fixing axle annular groove 61.
One end of the counterbalancing torsion springs 8 is installed on by the adjustable torsion spring clip 11 being arranged on turning set inner groovy 53
In turning set inner groovy 53, the other end is installed on fixation by being arranged on the fixation torsional spring clip 10 of 61 bottom of fixing axle annular groove
61 bottom of axis annular groove
In the present embodiment, the both ends of counterbalancing torsion springs are connect respectively with fixing axle and turning set, are changed by counterbalancing torsion springs torsion
To realize automatic equalising torque, reach stable center of gravity, reduce volume and weight, reduce the installation difficulty of counterbalancing torsion springs.
Embodiment 2
A kind of measuring arm with self-balancing axis as shown in figs 1-9, including：Fixing axle 6, the fixing axle 6 are hollow knot
Structure, the back end surface of fixing axle 6 are provided with axial fixing axle annular groove 61；
Turning set 5, the turning set 5 include it is corresponding with the back end surface of fixing axle 6 rotation side cover 51 and with fixing axle 6
Axial parallel upper cover arc plate 52；51 medial surface of rotation side cover is provided with turning set inner groovy 53, turning set inner groovy
53 is corresponding with fixing axle annular groove 61；
Connecting shaft 4, the connecting shaft 4 are rotatably connected by Bearning mechanism 2 with fixing axle 6,4 one end of connecting shaft and rotating side
Lid 51 connects；
Counterbalancing torsion springs 8, the counterbalancing torsion springs 8 are arranged in fixing axle annular groove 61, and the one end of counterbalancing torsion springs 8 is fixedly installed in
In turning set inner groovy 53, the other end is connect with fixing axle annular groove 61.
One end of the counterbalancing torsion springs 8 is installed on by the adjustable torsion spring clip 11 being arranged on turning set inner groovy 53
In turning set inner groovy 53, the other end is installed on fixation by being arranged on the fixation torsional spring clip 10 of 61 bottom of fixing axle annular groove
61 bottom of axis annular groove.
The connecting shaft 4 is hollow structure, and outer is the concentric cylinder axle construction of level Four, outside fourth stage cylindrical shaft
Edge is socketed with encoder 3.Hollow 4 grades of concentric cylinder axle construction from left to right, from first order cylinder axle construction to fourth stage cylinder
The outside diameter size of axle construction is sequentially reduced so that it is convenient to which echelon is installed.4 first order cylinder axle construction left side of connecting shaft has
Even number is uniformly distributed the symmetrical screw hole of opposite eccentric axial（At least four）.4 second level cylinder axle construction of connecting shaft and the third level
Cylinder axle construction participates in composition Bearning mechanism 2, and the third level cylinder axle construction tool screw thread when installing Bearning mechanism 2 to facilitate, passes through
Bearing clearance is eliminated in screw threads for fastening connection.In the present embodiment, Bearning mechanism 2 is two bearings.
5 inside of the turning set is the concentric hollow circuit cylinder of three-level, and the first order is turning set inner groovy 53, the second level and the
Three-level is set to 52 inside of upper cover arc plate.From left to right first order hollow cylindrical structure to third level hollow cylindrical structure diameter according to
Secondary increase, diameter are both greater than 8 outer diameter of counterbalancing torsion springs.Counterbalancing torsion springs 8 are mounted in hollow circuit cylinder.5 left end side wall of turning set tool is even
It is several to be uniformly distributed the symmetrical counter sink of opposite hollow cylinder eccentric axial（At least four）.Countersunk head hole number and position and connection
The quantity of 4 first order hollow circuit cylinder left side screw hole of axis and position are consistent.5 first order hollow cylindrical structure side of turning set has
One empty slot.Respectively there are the screw hole of 1 or more in empty slot both sides, and adjustable torsion spring clip 11 passes through in fastener 7 and 4 first order of connecting shaft
Hollow round column is fixedly connected.5 second level hollow cylindrical structure diameter of turning set is slightly larger than 6 outer shaft diameter of fixing axle.
The ring width of the fixing axle annular groove 61 is more than the line footpath of counterbalancing torsion springs 8.
The adjustable torsion spring clip 11 is ear shape structure, the dimension width of adjustable torsion spring clip 11 and turning set inner groovy
53 hollow cylindrical structure is mutually matched.To be installed in 5 first order hollow cylindrical structure empty slot of turning set.Adjustable torsion spring card
11 lower end sides are bound round as the pointed shape of the moon, inside arc matches with 5 outer arcuate of turning set, and 11 both ends of adjustable torsion spring clip tool is each
Tool two runs through counter sink, and position is consistent with the screwhole position at 5 first order hollow cylindrical structure empty slot both ends of turning set.Adjustable torsion
11 one opening of inside tool of spring clip has a ladder, facilitates peace towards the empty slot of 8 end of counterbalancing torsion springs between empty slot and lower end
Dress navigates to the empty slot of 5 first order hollow cylindrical structure side of turning set.Empty slot width is slightly larger than 8 line footpath of counterbalancing torsion springs.Empty slot
Length can accurately be processed according to the gravity torque of actual measurement measuring arm other parts in addition to pedestal and fixing axle, general during installation
One end of counterbalancing torsion springs 8 is stuck in empty slot, directly tightens the fixed power that 8 deformation of counterbalancing torsion springs can be realized and generate with fastener 7
Square and measuring arm remove the balance of pedestal and axis between outer portion gravity torque.
The internal face of the fixing axle annular groove 61 is provided with Bearning mechanism sleeve 12, and Bearning mechanism sleeve 12 is in two-stage
Hollow round column pore structure, first order hollow circuit cylinder pore structure and the hollow structure of fixing axle 6 are mutually matched.Bearning mechanism sleeve 12
Outer diameter is less than the interior circular diameter of counterbalancing torsion springs 8, and circular diameter is slightly larger than in fixing axle 6 in the first order in larger diameter hollow circuit cylinder hole
There is at least one to be uniformly distributed, relative to eccentric axial for sleeve outer circle diameter, the second level end face in small diameter hollow circuit cylinder hole
It is symmetrically consistent with the screwhole position and quantity of 6 internal axle sleeve left side of fixing axle through counter sink, position and quantity.Bearning mechanism
Sleeve 12 uses softer material, and surface is smooth, and providing buffering for 6 internal axle sleeve of fixing axle when counterbalancing torsion springs 8 are deformed upon protects
Shield prevents from answering counterbalancing torsion springs 8 to squeeze 6 internal axle sleeve of fixing axle when deforming upon and causes to deform, while reduce counterbalancing torsion springs 8 and bearing
Frictional force when mechanism sleeve 12 contacts, so as to ensure positioning accuracy during measuring arm wheel measuring.
The fixation torsional spring clip 10 divides for two-stage, and the shape and the outside wall surface of fixing axle annular groove 61 of the first order are mutual
Matching；The shape of the second level and the outer arcuate of fixing axle 6 are mutually matched.The first order has an opening towards 8 end of counterbalancing torsion springs
The empty slot at end, empty slot width are slightly larger than 8 line footpath of counterbalancing torsion springs.The second level is arcuate structure, and area is more than 6 outer shaft of fixing axle
Empty slot.Arc matches with 6 outer arcuate of fixing axle on the inside of the second level, and fixed 10 second level edge of torsional spring clip, which has three, to be run through
Counter sink, position are consistent with the screwhole position around 6 empty slot of fixing axle and quantity.Torsional spring clip 10 is fixed during installation and passes through fastening
Part 7 is fixed at 6 empty slot of fixing axle, and the right end of counterbalancing torsion springs 8 is blocked by the empty slot of the first order.
The Bearning mechanism 2 is two bearings；The hollow structure internal face of the fixing axle 6 is provided with bulge loop, two
Bearing is fastened on bulge loop two side ends respectively.Wherein, the part that fixing axle 6 installs self balancing device is two that right end is connected coaxial
The axle sleeve of the heart forms fixing axle annular groove 61 between two concentric axle sleeves.Internal axle sleeve participates in composition Bearning mechanism 2.It is interior
The hollow concentric cylinder pore structure of three-level that axle sleeve inner headed face installation bearing portion is divided into, from left to right, first order hollow circuit cylinder hole
Structure and third level hollow circuit cylinder pore structure diameter are equal, slightly larger than the outer ring outside diameter of bearing used.Two bearing difference
Between installation 4 second level cylinder axle construction of 6 internal axle sleeve first order hollow circuit cylinder pore structure of fixing axle and connecting shaft and in the third level
Between 4 second level cylinder axle construction of hollow round column pore structure and connecting shaft.Internal axle sleeve left end mask two or more is uniformly distributed relatively
The symmetrical screw hole of eccentric axial.Outer shaft outside diameter is slightly less than 5 second level hollow cylindrical structure diameter of turning set, in outer shaft
Circular diameter is equal to 5 first order hollow cylindrical structure diameter of turning set, more than 8 outside diameter of balancing spring.Balancing spring 8 is mounted on
In fixing axle annular groove 61 between 6 exterior and interior axle sleeves of fixing axle.6 outer shaft of fixing axle has close to 8 right end position of balancing spring
One empty slot, the screw hole of three isoceles triangles distributions of tool around empty slot.
One end that the turning set 5 opposes with rotation side cover 51 is provided with capping 54；The top of the upper cover arc plate 52 is set
It is equipped with perforative kinematic axis axle sleeve 55；6 bottom of fixing axle is provided with fixed seat 62.
In the present invention, connecting shaft is directly connected Bearning mechanism and angular encoder, by Bearning mechanism be installed on connecting shaft with
Between fixing axle internal axle sleeve.Counterbalancing torsion springs are mounted on to be made between fixing axle exterior and interior axle sleeves in this way.Bearning mechanism can be pacified in this way
Dress is located among counterbalancing torsion springs inner ring, substantially reduces the length of balance shaft horizontal direction, reduces volume and weight.Turning set
In the position of installation counterbalancing torsion springs, respectively there are one empty slots with fixing axle, are turned round by two relatively independent torsional spring clip stable equilibriums
Spring both ends can be done directly the installation and adjustment of counterbalancing torsion springs, the installation difficulty substantially reduced from outside.Simultaneously on turning set
Bar shaped empty slot it is longer, given adjustable torsion spring card slot increasing adjustment space, can be adjusted to reach in larger orientation
The purpose of balance is realized to accurate installation counterbalancing torsion springs, while also reduce to the technology requirement of counterbalancing torsion springs and its system
Make difficulty.It is to provide protection for Bearning mechanism to ease up that Bearning mechanism sleeve, which uses softer material to be deformed upon for counterbalancing torsion springs, simultaneously
Punching, precision consistency that can be with effective guarantee measuring arm during use is measured.
Using above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the content on specification, it is necessary to determine its technical scope according to right.
Claims (10)
1. a kind of measuring arm with self-balancing axis, which is characterized in that including：Fixing axle, the fixing axle are hollow structure,
The back end surface of fixing axle is provided with axial fixing axle annular groove；
Turning set, the turning set include rotation side cover corresponding with the back end surface of fixing axle and are axially put down with fixing axle
Capable upper cover arc plate；The rotation side cover medial surface is provided with turning set inner groovy, turning set inner groovy and fixing axle annular
Slot corresponds to；
Connecting shaft, the connecting shaft are rotatably connected by bearing with fixing axle, and one end of the connecting shaft portion is connect with rotation side cover；
Counterbalancing torsion springs, the counterbalancing torsion springs are arranged in fixing axle annular groove, and the one end of counterbalancing torsion springs is fixedly installed in rotation
It covers in inner groovy, the other end is connect with fixing axle annular groove.
2. a kind of measuring arm with self-balancing axis according to claim 1, which is characterized in that the counterbalancing torsion springs
One end is installed on by the adjustable torsion spring clip being arranged on turning set inner groovy in turning set inner groovy, and the other end passes through setting
Fixing axle annular groove bottom is installed in the fixation torsional spring clip of fixing axle annular groove bottom.
3. a kind of measuring arm with self-balancing axis according to claim 1, which is characterized in that during the connecting shaft is
Hollow structure, outer are the concentric cylinder axle construction of level Four, and fourth stage cylindrical shaft outer is socketed with encoder.
4. a kind of measuring arm with self-balancing axis according to claim 2, which is characterized in that be on the inside of the turning set
The concentric hollow circuit cylinder of three-level, the first order are turning set inner groovy, and the second level is set to the third level on the inside of upper cover arc plate.
A kind of 5. measuring arm with self-balancing axis according to claim 2, which is characterized in that the fixing axle annular
The ring width of slot is more than the line footpath of counterbalancing torsion springs.
A kind of 6. measuring arm with self-balancing axis according to claim 2, which is characterized in that the adjustable torsion spring card
It binds round as ear shape structure, the dimension width and the hollow cylindrical structure of turning set inner groovy of adjustable torsion spring clip are mutually matched.
A kind of 7. measuring arm with self-balancing axis according to claim 2, which is characterized in that the fixing axle annular groove
Internal face be provided with Bearning mechanism sleeve, Bearning mechanism sleeve is two-stage hollow circuit cylinder pore structure, first order hollow circuit cylinder hole
The hollow structure of structure and fixing axle is mutually matched.
A kind of 8. measuring arm with self-balancing axis according to claim 2, which is characterized in that the fixation torsional spring card
Hoop is divided into two-stage, and the shape and the outside wall surface of fixing axle annular groove of the first order are mutually matched；The shape of the second level and fixing axle
Outer arcuate is mutually matched.
9. a kind of measuring arm with self-balancing axis according to claim 1, which is characterized in that the Bearning mechanism is
Two bearings；The hollow structure internal face of the fixing axle is provided with bulge loop, and two bearings are fastened on bulge loop two side ends respectively.
10. a kind of measuring arm with self-balancing axis according to claim 1, which is characterized in that the turning set is with turning
One end of dynamic side cover opposition is provided with capping；The kinematic axis axle sleeve being provided through at the top of the upper cover arc plate；Described consolidates
Dead axle bottom is provided with fixed seat.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295264.2A CN108204795B (en) | 2018-04-04 | 2018-04-04 | Measuring arm with self-balancing shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295264.2A CN108204795B (en) | 2018-04-04 | 2018-04-04 | Measuring arm with self-balancing shaft |
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| CN108204795A true CN108204795A (en) | 2018-06-26 |
| CN108204795B CN108204795B (en) | 2024-01-23 |
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| CN101625238A (en) * | 2009-08-06 | 2010-01-13 | 浙江大学 | Automatically adjusting balance method of gage beam of flexible coordinate measuring machine and balance joint |
| CN202471005U (en) * | 2012-03-28 | 2012-10-03 | 广州市机电高级技工学校 | Portable coordinate measuring machine swinging joint with balance mechanism |
| CN106042006A (en) * | 2016-06-13 | 2016-10-26 | 重庆金山科技（集团）有限公司 | Reducer anti-torque structure of medical robot |
| GB201801290D0 (en) * | 2017-01-27 | 2018-03-14 | Faro Tech Inc | Articulated arm coordinate measuring machine |
| US9803973B1 (en) * | 2017-04-13 | 2017-10-31 | Sa08700334 | Ultra-light and ultra-accurate portable coordinate measurement machine |
| CN208075811U (en) * | 2018-04-04 | 2018-11-09 | 广州市精谷智能科技有限公司 | A kind of measuring arm with self-balancing axis |
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