CN116858151A - Protection mechanism for auxiliary supporting leg of three-coordinate measuring machine - Google Patents
Protection mechanism for auxiliary supporting leg of three-coordinate measuring machine Download PDFInfo
- Publication number
- CN116858151A CN116858151A CN202311132148.6A CN202311132148A CN116858151A CN 116858151 A CN116858151 A CN 116858151A CN 202311132148 A CN202311132148 A CN 202311132148A CN 116858151 A CN116858151 A CN 116858151A
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- sealing
- groove
- coordinate measuring
- measuring machine
- connecting piece
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- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 195
- 239000010438 granite Substances 0.000 claims abstract description 16
- 238000005253 cladding Methods 0.000 claims description 45
- 210000001503 joint Anatomy 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 238000010146 3D printing Methods 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 23
- 239000000428 dust Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The application relates to the technical field of three-coordinate measuring machines, in particular to a protection mechanism at an auxiliary supporting leg of a three-coordinate measuring machine, a housing and a fastener for fixing the housing and a granite platform of the three-coordinate measuring machine; the housing is provided with a containing groove which is downwards opened from the upper end face of the housing; a sealing connecting piece and a sealing ring are arranged in the accommodating groove, and the top of the sealing connecting piece extends out of the accommodating groove and is connected with the bottom of an auxiliary supporting leg of the three-coordinate measuring machine through an adjusting bolt, so that the bottom of the three-coordinate measuring machine is stably contacted with the ground; the bottom of the sealing connecting piece is provided with the sealing ring, and the bottom end of the sealing connecting piece is connected with the housing through the sealing ring; the outer wall of the sealing ring is provided with a radial air charging groove, and an air charging sealing ring is arranged in the air charging groove; the protection mechanism at the auxiliary supporting leg of the three-coordinate measuring machine prevents dust from falling into the auxiliary supporting leg, so that the collision measurement precision is not affected when the three-coordinate measuring machine measures.
Description
Technical Field
The application relates to the technical field of three-coordinate measuring machines, in particular to a protection mechanism for auxiliary supporting legs of a three-coordinate measuring machine.
Background
The three-coordinate measuring machine is a high-precision measuring instrument, and has good rigidity, straightness and verticality to improve the measuring precision. In order to improve the precision of the three-coordinate measuring machine, most manufacturers adopt a granite platform, a beam and a Z-axis upright post, and auxiliary supporting legs are also used for auxiliary measurement (refer to figure 1); in daily applications, the support shaft at the auxiliary support leg is on the same plane as the granite platform. Dustproof among the prior art, leakproofness effect are not good, influence the measurement accuracy of three coordinate measuring machine, and the structure is complicated relatively, and dust keeper installing port back-off structure leads to the installation, dismantles inconvenient, consequently, has appeared some new improvement techniques in the present market, in the patent literature that has already been disclosed, for example: the patent with publication number of CN 107478127A discloses a protection mechanism at the auxiliary supporting leg of a three-coordinate measuring machine, wherein the protection mechanism is arranged on a granite platform, and a notch is formed in the side edge of the granite platform downwards from the end part of the granite platform. The protection mechanism comprises a housing and a fixing piece, wherein the housing is integrally formed, and compared with a split housing, the protection mechanism has better effects of shielding dust and the like; the housing is accommodated in the notch, the housing is provided with an accommodating groove which is downwards formed in the upper end face of the housing, a support shaft adjusting bolt at the bottom end of the auxiliary support leg and an air bearing below the support shaft adjusting bolt are accommodated in the accommodating groove, and the opening of the accommodating groove is smaller than the minimum width of the air bearing. Therefore, the supporting shaft adjusting bolt and the air bearing cannot be collided, and the stability of the auxiliary supporting leg and the measurement accuracy of the three-coordinate measuring machine are affected.
In the above disclosed technology, the cover shell formed integrally is used as a main sealing component, gaps exist at the layout positions of the cover shell and the supporting legs, dust cannot be completely blocked, the contact ends between the supporting legs and the cover shell are in rigid contact, rigid contact abrasion can be caused after long-term use, gaps can be caused after abrasion, and slight inclination of the supporting legs can be seriously caused, so that the measurement accuracy is affected.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provides a protection mechanism for an auxiliary supporting leg of a three-coordinate measuring machine.
The application provides a protection mechanism at an auxiliary supporting leg of a three-coordinate measuring machine, which comprises a housing and a fastener for fixing the housing and a granite platform of the three-coordinate measuring machine; the housing is provided with a containing groove which is downwards opened from the upper end face of the housing; a sealing connecting piece and a sealing ring are arranged in the accommodating groove,
the top of the sealing connecting piece extends out of the accommodating groove and is connected with the bottom of an auxiliary supporting leg of the three-coordinate measuring machine through an adjusting bolt, so that the bottom of the three-coordinate measuring machine is stably contacted with the ground;
the bottom of the sealing connecting piece is provided with the sealing ring, and the bottom end of the sealing connecting piece is connected with the housing through the sealing ring;
the outer wall of the sealing ring is provided with a radial air charging groove, and an air charging sealing ring is arranged in the air charging groove;
the auxiliary supporting leg is of a hollow structure, an inflator pump is arranged in the auxiliary supporting leg and connected with the control device, a clamping sleeve used for clamping an inflating end of the inflator pump is arranged in the sealing connecting piece, and the inflating end of the inflator pump penetrates through the clamping sleeve and is connected with the inflatable sealing ring through an adjusting bolt and the sealing piece;
the sealing connector comprises a main body part and a sealing part which are fixedly connected; the sealing part is conical, elastic limiting blocks are uniformly distributed on the periphery of the sealing part, and the elastic limiting blocks are connected with the sealing part through springs; the main part includes the connecting piece main part, sets up in the connecting piece main part outside and carries out cladding subassembly of cladding to the connecting piece main part, sets up the backstop piece between cladding subassembly and connecting piece main part to and including setting up the rubber packing ring at cladding subassembly outer terminal surface, sealed connecting piece top with the housing passes through the rubber packing ring and connects.
Further, the connecting piece main body is in a circular arrangement, and adopts a steel structure, a main groove body is arranged along the side surface of the connecting piece main body, and an upper plug-in piece and a lower plug-in piece are formed on the upper side and the lower side of the main groove body; the cladding component is semicircular and is formed by 3D printing of metal alloy materials and has an elastic modulus in a set range, the cladding component is provided with an upper cladding component and a butt joint component, the upper cladding component and the butt joint component are integrally arranged, the butt joint component comprises a butt joint main body, the inner side surface of the butt joint main body is provided with two butt joint upper plug-ins and butt joint lower plug-ins which are outwards protruded, an upper slot for installing the upper plug-ins in a matched mode is formed between the butt joint upper plug-ins and the upper cladding component, a lower slot for installing the lower plug-ins in a matched mode is formed at the lower part of the butt joint lower plug-ins, an outer caulking groove is formed at the outer side end face of the butt joint main body, and a stop groove is formed between the butt joint upper plug-ins and the butt joint lower plug-ins;
the rubber gasket is arranged in a circular ring shape and sleeved in the outer caulking groove; an expansion groove is formed in the connecting piece main body from the cladding component, penetrates through the cladding component and the upper plug-in to the upper surface of the lower plug-in, the expansion groove is an inclined opening with gradually reduced width from top to bottom in the cladding component and the upper plug-in section, and the lower part of the inclined opening is an extrusion opening formed by the outer side surface of the stop piece main body and the inner side surface of the main groove;
when the expansion pin enters the extrusion port from the expansion groove, the expansion pin is wedged into the stop piece gradually and outwards extruded, and when the stop piece is outwards extruded, the stop piece extrudes the abutting assembly of the cladding assembly, so that the abutting assembly is deformed to form the seal between the housing and the sealing connecting piece;
further, the clamping sleeve comprises a plurality of petal-shaped connecting plates, the clamping sleeve is formed by encircling a plurality of petal-shaped connecting plates which are arranged at equal intervals into a tubular structure, the inner hole of the adjusting bolt is a conical hole, a thread groove is formed in the inner wall of the conical hole, a conical surface which is matched with the conical hole of the adjusting bolt is formed in the outer side wall of the clamping sleeve, threads which are matched with the thread groove are formed in the outer side wall of the clamping end at one end of the clamping sleeve, the clamping end at one end of the clamping sleeve extends out of the top end of the cladding component, the clamping end at one end of the clamping sleeve is positioned in the conical hole of the adjusting bolt, and the other end of the clamping sleeve is arranged in the central hole of the connecting piece main body;
further, the sealing part is conical, elastic limiting blocks are uniformly distributed on the periphery of the sealing part, and the elastic limiting blocks are connected with the sealing part through springs.
Further, be provided with the sealing ring in the holding tank, the sealing ring includes the seal groove, and a plurality of lugs and backset groove have been equipartition to seal groove lateral wall, the lug with backset groove interval sets up, the lug with elasticity stopper corresponds the setting.
Further, the granite platform further comprises a notch, a notch is formed in one side edge of the granite platform of the three-coordinate measuring machine from the end of the granite platform downwards, and the housing is arranged in the notch.
Further, the opening of the receiving groove is smaller than the width of the main body portion of the sealing connection member and larger than the width of the sealing portion.
Further, the elastic limiting block is a metal elastic sheet, and magnetic adsorption particles are arranged in the accommodating groove.
Further, the elastic limiting block is a metal elastic sheet, and a magnetic adsorption coating is arranged on the inner side surface of the accommodating groove.
Further, the inflation end of the inflator pump is connected with the inflation sealing ring through an inflation tube, a groove is axially formed in the outer wall of the sealing ring, the groove is communicated with the inflation groove, the inflation tube is arranged in the groove, one end of the inflation tube penetrates through the sealing connecting piece, the clamping sleeve, the adjusting bolt and the auxiliary supporting leg to be connected with the inflation end of the inflator pump, and the other end of the inflation tube is connected with the inflation sealing ring.
Compared with the prior art, the application has the beneficial effects that:
the auxiliary supporting leg is connected with the contact end of the housing through the adjusting bolt and the sealing piece, the soft contact is realized by connecting the supporting leg with the contact end of the housing through the adjusting bolt and the sealing piece, the stability of the contact end of the auxiliary supporting leg and the housing is adjusted, and meanwhile, the auxiliary supporting leg is prevented from being slightly inclined when being collided during the measurement of the three-coordinate measuring machine, so that the measurement precision is not affected during the measurement of the three-coordinate measuring machine; meanwhile, an inflating end of an inflator pump in the housing passes through the clamping sleeve and is connected with an inflatable sealing ring on the sealing ring through the adjusting bolt and the sealing piece, so that the measurement accuracy is not affected when the three-coordinate measuring machine measures while the inflation is smooth; the holding groove on the housing is internally provided with the sealing connecting piece and the sealing ring, the elastic limiting block is arranged on the sealing part of the sealing connecting piece, the spring and the convex block on the sealing ring are used for inserting the sealing connecting piece into the housing for sealing under the action of external force, the sealing connecting piece and the sealing ring form multiple seals from top to bottom, the sealing performance is good, the gap between the housing and the auxiliary supporting leg is eliminated, dust is prevented from falling into the auxiliary supporting leg, and the measuring precision is more accurate.
Drawings
The following drawings are illustrative of the application and are not intended to limit the scope of the application, in which:
FIG. 1 is a schematic view of a protection mechanism in the prior art according to the present application;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view of the seal connection and seal ring of the present application;
FIG. 4 is a schematic perspective view of a sealing connection member according to the present application;
FIG. 5 is a schematic view of the seal ring of the present application;
FIG. 6 is a schematic view of the composition of the sealing connection of the present application;
FIG. 7 is a schematic view of a cladding assembly according to the present application;
FIG. 8 is a schematic view of the structure of the connector body according to the present application;
FIG. 9 is a top view of a seal connection of the present application;
fig. 10 is a schematic structural view of a clamping sleeve according to the present application.
Detailed Description
The present application will be further described in detail with reference to the following specific examples, which are given by way of illustration, in order to make the objects, technical solutions, design methods and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
As shown in fig. 1-10, the application provides a protection mechanism at an auxiliary supporting leg of a three-coordinate measuring machine, a notch 2 is arranged on one side edge of a granite platform 1 of the three-coordinate measuring machine from the end part of the granite platform downwards, a housing 3 is arranged in the notch 2, and the housing 3 is connected with the granite platform 1 of the three-coordinate measuring machine through a fastener 7;
the housing 3 is provided with a containing groove 31 which is downwards formed from the upper end surface of the housing 3, a sealing connecting piece 6 and a sealing ring 8 are arranged in the containing groove 31, the top of the sealing connecting piece 6 extends out of the containing groove 31 to be connected with the bottom of an auxiliary supporting leg 4 of the three-coordinate measuring machine through an adjusting bolt 5, and the bottom of the three-coordinate measuring machine is stably contacted with the ground;
the bottom of the sealing connecting piece 6 is provided with the sealing ring 8, and the bottom end of the sealing connecting piece 6 is connected with the housing 3 through the sealing ring 8; an inflatable groove which is radially arranged is formed in the outer wall of the sealing ring 8, and an inflatable sealing ring 12 is arranged in the inflatable groove;
the inside of the auxiliary supporting leg 4 is of a hollow structure, an inflator pump 10 is arranged in the auxiliary supporting leg 4, the inflator pump 10 is connected with a control device, a clamping sleeve 13 for clamping the inflating end of the inflator pump 10 is arranged in the sealing connecting piece 6, and the clamping sleeve 13 can be adaptively clamped along with the inflating quantity in the inflating tube 11, so that the inflating is normal when the three-coordinate measuring machine is in collision during measurement; the inflating end of the inflator pump 10 passes through the clamping sleeve 13 and is connected with the inflatable sealing ring 12 through the adjusting bolt 5 and the sealing piece;
the bottom end of the auxiliary supporting leg 4 is provided with an adjusting bolt 5, a sealing connecting piece 6 is connected below the adjusting bolt 5 (the adjusting bolt 5 is connected with a connecting piece main body 66 of the sealing connecting piece 6 through a clamping sleeve 13, a sealing ring is arranged between the adjusting bolt 5 and the cladding component 64, and the diameter size of the adjusting bolt 5 is larger than that of the central holes of the cladding component 64, the connecting piece main body 66 and the sealing part 62); the inflating end of the inflator pump 10 is connected with the inflatable sealing ring 12;
the sealing connector 6 comprises a main body part 61 and a sealing part 62 which are fixedly connected (the bottom end of the main body part 61 is connected with the sealing part 62 through welding or threads); the sealing part 62 is conical, elastic limiting blocks 601 are uniformly distributed on the periphery of the sealing part 62, and the elastic limiting blocks 601 are connected with the sealing part 62 through springs 602; the main body part 61 comprises a connecting piece main body 66, a cladding component 64 arranged on the outer side of the connecting piece main body 66 and cladding the connecting piece main body 66, and a clamping sleeve 13 arranged at the center of the connecting piece main body 66, wherein the clamping sleeve 13 comprises a plurality of petal-shaped connecting plates, the clamping sleeve 13 is surrounded into a tubular structure by a plurality of petal-shaped connecting plates which are arranged at equal intervals, an inner hole of the adjusting bolt 5 is a conical hole, a thread groove is formed in the inner wall of the conical hole, a conical surface which is matched with the conical hole of the adjusting bolt 5 is formed in the outer side wall of the clamping sleeve 13, threads which are matched with the thread groove are formed in the outer side wall of the clamping end at one end of the clamping sleeve 13, the clamping end at one end of the clamping sleeve 13 extends out of the top end of the cladding component 64, the clamping end at one end of the clamping sleeve 13 is positioned in the conical hole of the adjusting bolt 5, and the other end of the clamping sleeve 13 is arranged in the central hole of the sealing connecting piece 6;
the sealing piece is a sealing ring, and the adjusting bolt 5 and the sealing ring are arranged for adjusting the gap between the auxiliary supporting leg 4 and the housing 3 to enable the three-coordinate measuring machine to be stable, and meanwhile dust is prevented from falling into the auxiliary supporting leg, so that the precision of the three-coordinate measuring machine is better during measurement; the clamping sleeve 13 is arranged to adapt to the inflation quantity of the inflation end of the inflator 10, adapt to the inflators with different sizes, ensure smooth inflation of the inflation end of the clamping inflator 10, ensure stable inflation quantity when being collided during measurement by the three-coordinate measuring machine, and further ensure that the measurement accuracy is not affected;
in the concrete implementation, the adjusting bolt 5 is sleeved on the clamping sleeve 13 and used for adjusting and clamping the inflation tube 11, and the inflation tube 11 is clamped by adjusting the position of the adjusting bolt 5 on the clamping sleeve 13;
the inner hole of the adjusting bolt 5 is a conical hole, and the outer side wall of the clamping sleeve 13 is provided with a conical surface which is matched with the conical hole of the adjusting bolt 5; the clamping sleeve 13 is of a tubular structure, the clamping sleeve 13 comprises a plurality of petal-shaped connecting plates, the inner sides of the petal-shaped connecting plates are matched with the outer side of the inflatable tube 11 in shape, the clamping sleeve 13 is made of aluminum alloy or brass, the clamping sleeve 13 is of a tubular structure surrounded by a plurality of petal-shaped connecting plates which are arranged at equal intervals, gaps are arranged between the adjacent petal-shaped connecting plates, one end clamping end of the clamping sleeve 13 is arranged between the bottom ends of the auxiliary supporting legs 4 and the top ends of the cladding assemblies 64, and the other end of the clamping sleeve 13 is arranged in a central hole of the sealing connecting piece 6;
a stopper 67 provided between the sheathing member 64 and the connector body 66, and including a rubber gasket 68 provided at an outer end surface of the sheathing member 64, the top end of the sealing connector 6 being connected to the housing 3 through the rubber gasket 68;
the connecting piece main body 66 is in a circular shape, the connecting piece main body 66 adopts a steel structure, a main groove body 661 is formed along the side surface of the connecting piece main body 66, and an upper plug 660 and a lower plug 662 are formed on the upper side and the lower side of the main groove body 661; the cladding component 64 is semicircular, is formed by 3D printing of metal alloy materials and has an elastic modulus in a set range, the cladding component 64 is provided with an upper cladding component 640 and a butting component, the upper cladding component 640 and the butting component are integrally arranged, the butting component comprises a butting main body 647, the inner side surface of the butting main body 647 is provided with two butting upper plug-ins 645 and butting lower plug-ins 646 which are outwards protruded, an upper slot 641 matched with the upper plug-ins 660 is formed between the butting upper plug-ins 645 and the upper cladding component 640, a lower slot 643 matched with the lower plug-ins 662 is formed at the lower part of the butting lower plug-ins 646, an outer caulking slot 644 is formed at the outer side end surface of the butting main body 647, and a stop slot 642 is formed between the butting upper plug-ins 645 and the butting lower plug-ins 646; the stopper 67 includes a stopper body and an outwardly protruding stopper insert 670 provided at one side of the stopper body, wherein the stopper insert 670 is installed in the stopper groove 642; the rubber gasket 68 is arranged in a circular ring shape and is sleeved in the external caulking groove 644; the expansion pin 63 enters from the expansion groove 65, and gradually presses the stop piece 67 outwards along with the wedging of the expansion pin 63 when reaching the pressing opening, and the stop piece 67 presses the abutting assembly of the cladding assembly 64 by the stop insert 670 when being pressed outwards, so that the abutting assembly deforms to form a seal; the expansion groove 65 is formed from the cladding component 64 to the connecting piece main body 66, penetrates through the cladding component 64 and the upper plug 660 to the upper surface of the lower plug 662, the expansion groove 65 is provided with an inclined opening with gradually reduced width from top to bottom at the sections of the cladding component 64 and the upper plug 660, and the lower part of the inclined opening is an extrusion opening formed by the outer side surface of the stop piece main body and the inner side surface of the main groove 661;
in some embodiments, the outer wall of the sealing ring 8 is axially provided with a groove, the groove is communicated with the inflation groove, the inflation tube 11 is installed in the groove, one end of the inflation tube 11 penetrates through the sealing connecting piece 6, the clamping sleeve 13, the adjusting bolt 5 and the auxiliary supporting leg 4 to be connected with the inflation end of the inflator 10, and the other end of the inflation tube 11 is connected with the inflation sealing ring 12; the inflation end of the inflator 10 is connected with the inflatable sealing ring 12 through an inflation tube 11, a control valve is arranged on the inflation tube 11, the control valve can be opened and closed through a control device to open the inflation tube 11 and control the inflator 10 to inflate into the inflatable sealing ring 12, and after the set pressure is reached, the control device controls the control valve and the inflator to be closed respectively, so that the application is convenient to implement, the application also provides a control system which comprises the control device, and the control device at least can realize the following functions (1): the control device is connected with the inflator pump 10 and controls the opening and closing of the inflator pump 10; (2) the method comprises the following steps The control device is connected with a control valve and is used for opening or closing the inflation tube 11; (3) the control device is connected with a pressure sensor arranged in the inflatable sealing ring 12 or in the groove and is used for judging the inflation degree of the inflatable sealing ring 12 by acquiring data of the pressure sensor in real time.
In some embodiments, the inflator 10 further has a charging wire and an air inlet pipe, where the charging wire and the air inlet pipe may have through holes on the auxiliary support legs 4 to achieve the purpose of air intake and charging, and the through holes on the auxiliary support legs 4 are provided with sealing rings for reducing dust entering into the auxiliary support legs 4;
the control device is connected with the inflator pump to control the opening of the inflator pump, when the three-coordinate measuring machine is in collision during measurement, the control device controls the inflator pump 10, the inflator pump 10 inflates the inflatable sealing ring 12 arranged on the outer wall of the sealing ring through the inflation tube 11, the inflatable sealing ring 12 is spread, the collision measurement precision is not affected during measurement of the three-coordinate measuring machine, and the measurement precision during measurement of the three-coordinate measuring machine is ensured; the three-coordinate measuring machine does not collide during measurement, and the inflatable sealing ring is arranged in the groove on the outer wall of the sealing ring in a shrinkage way; the sealing connector 6, the sealing connector 6 includes a connected main body portion 61 and a sealing portion 62, the sealing portion 62 is conical, an elastic limiting block 601 is uniformly distributed on the periphery of the sealing portion 62, the elastic limiting block 601 is connected with the sealing portion 62 through a spring 602, a sealing ring 8 is disposed in the accommodating groove 31, the sealing ring 8 includes a sealing groove, a plurality of protruding blocks 81 and a recessing groove 82 are uniformly distributed on one side wall of the sealing groove, the protruding blocks 81 and the recessing groove 82 are disposed at intervals, the protruding blocks 81 and the elastic limiting block 601 are correspondingly disposed, the sealing connector 6 is required to be mounted in the accommodating groove 31 on the housing 3, the sealing connector 6 and the housing 3 are sealed through the elastic limiting block 601, the spring and the protruding blocks on the sealing ring, when the sealing connector 6 is dismounted from the accommodating groove 31 on the housing 3, the sealing connector 6 can be taken out from the accommodating groove 31 only by rotating the sealing connector 6, the elastic limiting block 601 is rotated into the recessing groove on the sealing ring, and the opening of the accommodating groove 31 is smaller than the width of the main body portion 6 and is larger than the width 62 of the sealing connector 3.
In some embodiments, the cladding assembly 64 is formed from a metal alloy material by 3D printing, and further from an aluminum alloy or magnesium aluminum alloy material by 3D printing, such that the cladding assembly 64 has a porous structure, and the porous structure is a three-dimensional communication structure; the control of the pore size in the three-dimensional communication structure can enable the obtained cladding component 64 to have an elastic modulus in a set range of 1-5mm, and the elastic modulus is generally 1-5mm (that is, the cladding component 64 can be compressed by 1-5mm as a whole) so as to obtain the elastic modulus, and then the pore size in the three-dimensional communication structure is 2-4mm.
After the sealing connecting piece 6 and the sealing ring 8 are installed on the containing groove 31 on the housing 3, the sealing connecting piece 6 and the sealing ring 8 form multiple seals from top to bottom, specifically, at the bottom of the containing groove 31, the sealing ring 8 forms bottom seal in an integral mode, and an air inflation groove which is radially arranged is formed in the outer wall of the sealing ring 8, an inflatable sealing ring 12 is arranged in the air inflation groove, and the inflatable sealing ring 12 is inflated to enable the inflatable sealing ring 12 to expand to achieve bottom secondary seal. Removing the expansion pin 63 at the upper part of the accommodating groove 31, and integrally sealing the sealing connecting piece 6 at the upper part of the accommodating groove 31, wherein the overall width of the sealing connecting piece 6 is slightly larger than the caliber of the accommodating groove 31 in design, the overall diameter of the sealing connecting piece 6 can be slightly reduced from top to bottom, and further, the diameter of the uppermost part of the sealing connecting piece 6 is larger than the caliber of the accommodating groove 31 by 2-4mm; the diameter of the bottommost part is smaller than the caliber of the accommodating groove 31 by 0.5-1mm so as to form an inclined plane, the sealing connecting piece 6 is pressed into the accommodating groove 31 by the inclined plane, the sealing connecting piece 6 can be pressed into the accommodating groove 31 by the covering component 64 with the elastic modulus of 1-5mm due to the fact that the outer part of the sealing connecting piece 6 is the covering component 64, after being pressed, the sealing connecting piece 6 is tightly clamped in the accommodating groove 31 due to the existence of reaction force, in order to further tightly clamp the sealing connecting piece 6 in the accommodating groove 31, by wedging the expansion pin 63 into the expansion groove 65 until the pressing opening, the sealing connecting piece 67 is gradually pressed outwards along with the wedging of the expansion pin 63, and the abutting component of the covering component 64 is pressed by the stop plug 670 when the abutting component 67 is pressed outwards, so that the abutting component is deformed to form a seal, and the whole sealing of the upper part is realized.
In addition to the above-mentioned structure, the elastic stopper 601 is also provided as a metal elastic sheet, and the accommodating groove 31 is provided with magnetic adsorption particles; the elastic limiting block 601 is a metal elastic sheet with a sealing dust removing effect, and a magnetic adsorption coating is arranged on the inner side surface of the accommodating groove 31; meanwhile, the dust-removing agent also has the effect of sealing and removing dust;
besides the above-mentioned sealing effect, the structure provided by the application can also ensure the overall stability, in particular, the sealing connecting piece 6 is installed in the containing groove 31 on the housing 3, the sealing ring 8 is a rubber sealing ring, the sealing connecting piece 6 is inserted into the housing 3 to seal under the action of external force through the elastic limiting block 601 on the sealing part and the convex blocks on the spring and the sealing ring, the sealing connecting piece 6 and the sealing ring 8 can form multiple seals, the stability of the connecting part is improved as a result of the multiple seals, the collision measuring precision is not affected when the three-coordinate measuring machine measures, the sealing performance is good, dust is prevented from falling into the containing groove 31 which is connected with the bottom of the auxiliary supporting leg 4 of the three-coordinate measuring machine through the adjusting bolt 5 and the sealing piece, and the top of the sealing connecting piece 6 is used for enabling the bottom of the three-coordinate measuring machine to be contacted with the ground stably, and preventing dust from falling into the effective use of the auxiliary supporting leg;
the protection mechanism is characterized in that the auxiliary supporting leg of the three-coordinate measuring machine is connected with the contact end of the housing through the adjusting bolt and the sealing piece, the contact end of the supporting leg and the housing is in soft contact through the adjusting bolt and the sealing piece, the protection mechanism is used for adjusting the stability of the contact end of the auxiliary supporting leg and the housing, and meanwhile, the auxiliary supporting leg is prevented from being slightly inclined when being collided during measurement of the three-coordinate measuring machine, so that the measurement precision is not affected during measurement of the three-coordinate measuring machine; meanwhile, an inflating end of an inflator pump in the housing passes through the clamping sleeve and is connected with an inflatable sealing ring on the sealing ring through the adjusting bolt and the sealing piece, so that the measurement accuracy is not affected when the three-coordinate measuring machine measures while the inflation is smooth; the sealing connection piece and the sealing ring are arranged in the accommodating groove on the housing, the elastic limiting block is arranged on the sealing part of the sealing connection piece, the spring and the convex block on the sealing ring are used for inserting the sealing connection piece into the housing for sealing under the action of external force, the sealing connection piece 6 and the sealing ring 8 form multiple seals from top to bottom, the sealing performance is good, the gap between the housing and the auxiliary supporting leg is eliminated, dust is prevented from falling into the auxiliary supporting leg, and the measuring precision is more accurate.
The foregoing description of embodiments of the application has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. A protection mechanism at the auxiliary support leg of a three-coordinate measuring machine, characterized in that it comprises a casing (3) and a fastener (7) for fixing the casing (3) to the granite platform (1) of the three-coordinate measuring machine;
an accommodating groove (31) which is downwards opened from the upper end surface of the housing (3) is arranged on the housing (3), a sealing connecting piece (6) and a sealing ring (8) are arranged in the accommodating groove (31),
the top of the sealing connecting piece (6) extends out of the accommodating groove (31) and is connected with the bottom of the auxiliary supporting leg (4) of the three-coordinate measuring machine through the adjusting bolt (5) and the sealing piece; the bottom of the sealing connecting piece (6) is provided with the sealing ring (8), and the bottom end of the sealing connecting piece (6) is connected with the housing (3) through the sealing ring (8); an inflatable groove which is radially arranged is formed in the outer wall of the sealing ring (8), and an inflatable sealing ring (12) is arranged in the inflatable groove;
the inside of the auxiliary supporting leg (4) is of a hollow structure, an inflator pump (10) is arranged in the auxiliary supporting leg (4), the inflator pump (10) is connected with a control device, a clamping sleeve (13) for clamping the inflating end of the inflator pump (10) is arranged in the sealing connecting piece (6), and the inflating end of the inflator pump (10) penetrates through the clamping sleeve (13) and is connected with the inflatable sealing ring (12) through an adjusting bolt (5) and a sealing piece;
the sealing connection (6) comprises a main body part (61) and a sealing part (62) which are fixedly connected;
the sealing part (62) is conical, elastic limiting blocks (601) are uniformly distributed on the periphery of the sealing part (62), and the elastic limiting blocks (601) are connected with the sealing part (62) through springs (602);
the main body part (61) comprises a connector main body (66), a cladding assembly (64) arranged outside the connector main body (66) and cladding the connector main body (66), a stop piece (67) arranged between the cladding assembly (64) and the connector main body (66), and a rubber gasket (68) arranged on the outer end face of the cladding assembly (64); the top end of the sealing connecting piece (6) is connected with the housing (3) through a rubber gasket (68).
2. The protection mechanism at the auxiliary support leg of the three-coordinate measuring machine according to claim 1, wherein,
the connecting piece main body (66) is in a circular shape, the connecting piece main body (66) adopts a steel structure, a main groove body (661) is formed along the side face of the connecting piece main body (66), and an upper plug-in piece (660) and a lower plug-in piece (662) are formed on the upper side and the lower side of the main groove body (661);
the cladding component (64) is semicircular, is formed by 3D printing of a metal alloy material and has an elastic modulus in a set range, the cladding component (64) is provided with an upper cladding piece (640) and a butt joint component, and the upper cladding piece (640) and the butt joint component are integrally arranged;
the butt joint assembly comprises a butt joint main body (647), wherein the inner side surface of the butt joint main body (647) is provided with two butt joint upper plug-ins (645) and a butt joint lower plug-ins (646) which are protruded outwards, an upper slot (641) matched with the upper plug-ins (660) is formed between the butt joint upper plug-ins (645) and the upper cladding (640), the lower part of the butt joint lower plug-ins (646) is provided with a lower slot (643) matched with the lower plug-ins (662), an outer embedding groove (644) is formed on the outer side end surface of the butt joint main body (647), and a stop groove (642) is formed between the butt joint upper plug-ins (645) and the butt joint lower plug-ins (646);
the stop (67) comprises a stop main body and an outward protruding stop insert (670) arranged at one side of the stop main body, wherein the stop insert (670) is arranged in the stop groove (642);
the rubber gasket (68) is arranged in a circular ring shape and is sleeved in the external caulking groove (644);
an expansion groove (65) is formed in the connecting piece main body (66) from the coating component (64), penetrates through the coating component (64) and the upper plug-in piece (660) to the upper surface of the lower plug-in piece (662), the expansion groove (65) is an inclined opening with gradually reduced width from top to bottom at the sections of the coating component (64) and the upper plug-in piece (660), and the lower part of the inclined opening is an extrusion opening formed by the outer side surface of the stop piece main body and the inner side surface of the main groove body (661);
when the expansion pin (63) enters the extrusion port from the expansion groove (65), the stop piece (67) is gradually extruded outwards along with the wedging of the expansion pin (63), and when the stop piece (67) is extruded outwards, the abutting assembly of the cladding assembly (64) is extruded by the stop insert (670) so that the abutting assembly deforms to form the seal between the housing (3) and the sealing connecting piece (6).
3. The protection mechanism at the auxiliary supporting leg of the three-coordinate measuring machine according to claim 2, wherein the clamping sleeve (13) comprises a plurality of petal-shaped connecting plates, the clamping sleeve (13) is formed by encircling a plurality of petal-shaped connecting plates which are arranged at equal intervals into a tubular structure, the inner hole of the adjusting bolt (5) is a conical hole, a thread groove is formed in the inner wall of the conical hole, a conical surface which is matched with the conical hole of the adjusting bolt (5) is formed in the outer side wall of the clamping sleeve (13), threads which are matched with the thread groove are formed in the outer side wall of the clamping end at one end of the clamping sleeve (13), the top end of the cladding component (64) extends out from the clamping end at one end of the clamping sleeve (13), the clamping end at one end of the clamping sleeve (13) is positioned in the conical hole of the adjusting bolt (5), and the other end of the clamping sleeve (13) is arranged in the central hole of the connecting piece main body (66).
4. The protection mechanism at the auxiliary supporting leg of the three-coordinate measuring machine according to claim 1, wherein the sealing ring (8) comprises a sealing groove, a plurality of protruding blocks (81) and a receding groove (82) are uniformly distributed on one side wall of the sealing groove, the protruding blocks (81) and the receding groove (82) are arranged at intervals, and the protruding blocks (81) and the elastic limiting blocks (601) are correspondingly arranged.
5. The protection mechanism at the auxiliary supporting leg of the three-coordinate measuring machine according to claim 1, further comprising a notch (2), wherein a notch (2) is formed by downwards opening a side edge of the granite platform (1) of the three-coordinate measuring machine from the end part of the granite platform, and the housing (3) is arranged in the notch (2).
6. Protection mechanism at a support leg for a three-coordinate measuring machine according to claim 1, characterized in that the opening of the receiving slot (31) is smaller than the width of the body part (61) of the sealing connection (6) and larger than the width of the sealing part (62).
7. The protection mechanism at the auxiliary supporting leg of the three-coordinate measuring machine according to claim 1, wherein the elastic limiting block (601) is a metal elastic sheet, and magnetic adsorption particles are arranged in the accommodating groove (31).
8. The protection mechanism at the auxiliary supporting leg of the three-coordinate measuring machine according to claim 1, wherein the elastic limiting block (601) is a metal elastic sheet, and a magnetic adsorption coating is arranged on the inner side surface of the accommodating groove (31).
9. The protection mechanism at the auxiliary supporting leg of the three-coordinate measuring machine according to claim 3, wherein an inflating end of the inflator pump (10) is connected with the inflatable sealing ring (12) through an inflating pipe (11), a groove is axially formed in the outer wall of the sealing ring (8) and is communicated with the inflating groove, the inflating pipe (11) is installed in the groove, one end of the inflating pipe (11) penetrates through the sealing connecting piece (6), the clamping sleeve (13), the adjusting bolt (5) and the auxiliary supporting leg (4) to be connected with the inflating end of the inflator pump (10), and the other end of the inflating pipe (11) is connected with the inflatable sealing ring (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311132148.6A CN116858151B (en) | 2023-09-05 | 2023-09-05 | Protection mechanism for auxiliary supporting leg of three-coordinate measuring machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311132148.6A CN116858151B (en) | 2023-09-05 | 2023-09-05 | Protection mechanism for auxiliary supporting leg of three-coordinate measuring machine |
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| CN116858151A true CN116858151A (en) | 2023-10-10 |
| CN116858151B CN116858151B (en) | 2023-12-12 |
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